// Aliyun OSS SDK for JavaScript v6.16.0
// Copyright Aliyun.com, Inc. or its affiliates. All Rights Reserved.
// License at https://github.com/ali-sdk/ali-oss/blob/master/LICENSE
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.OSS = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
"use strict";

var OSS = require('./browser/client');

OSS.Buffer = require('buffer').Buffer;
OSS.urllib = require('../shims/xhr');
OSS.version = require('./browser/version').version;
module.exports = OSS;

},{"../shims/xhr":396,"./browser/client":2,"./browser/version":5,"buffer":99}],2:[function(require,module,exports){
(function (Buffer,process){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.symbol");

require("core-js/modules/es.symbol.description");

require("core-js/modules/es.array.concat");

require("core-js/modules/es.array.includes");

require("core-js/modules/es.array.index-of");

require("core-js/modules/es.array.slice");

require("core-js/modules/es.function.name");

require("core-js/modules/es.object.assign");

require("core-js/modules/es.object.to-string");

require("core-js/modules/es.promise");

require("core-js/modules/es.regexp.exec");

require("core-js/modules/es.regexp.to-string");

require("core-js/modules/es.string.replace");

require("core-js/modules/es.string.split");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var debug = require('debug')('ali-oss');

var xml = require('xml2js');

var AgentKeepalive = require('agentkeepalive');

var merge = require('merge-descriptors');

var platform = require('platform');

var utility = require('utility');

var urllib = require('urllib');

var pkg = require('./version');

var bowser = require('bowser');

var signUtils = require('../common/signUtils');

var _initOptions = require('../common/client/initOptions');

var _require = require('../common/utils/createRequest'),
    createRequest = _require.createRequest;

var _require2 = require('../common/utils/encoder'),
    encoder = _require2.encoder;

var _require3 = require('../common/client/getReqUrl'),
    getReqUrl = _require3.getReqUrl;

var _require4 = require('../common/utils/setSTSToken'),
    setSTSToken = _require4.setSTSToken;

var _require5 = require('../common/utils/retry'),
    retry = _require5.retry;

var _require6 = require('../common/utils/isFunction'),
    isFunction = _require6.isFunction;

var globalHttpAgent = new AgentKeepalive();

function _unSupportBrowserTip() {
  var name = platform.name,
      version = platform.version;

  if (name && name.toLowerCase && name.toLowerCase() === 'ie' && version.split('.')[0] < 10) {
    // eslint-disable-next-line no-console
    console.warn('ali-oss does not support the current browser');
  }
} // check local web protocol,if https secure default set true , if http secure default set false


function isHttpsWebProtocol() {
  // for web worker not use window.location.
  // eslint-disable-next-line no-restricted-globals
  return location && location.protocol === 'https:';
}

function Client(options, ctx) {
  _unSupportBrowserTip();

  if (!(this instanceof Client)) {
    return new Client(options, ctx);
  }

  if (options && options.inited) {
    this.options = options;
  } else {
    this.options = Client.initOptions(options);
  }

  this.options.cancelFlag = false; // cancel flag: if true need to be cancelled, default false
  // support custom agent and urllib client

  if (this.options.urllib) {
    this.urllib = this.options.urllib;
  } else {
    this.urllib = urllib;
    this.agent = this.options.agent || globalHttpAgent;
  }

  this.ctx = ctx;
  this.userAgent = this._getUserAgent(); // record the time difference between client and server

  this.options.amendTimeSkewed = 0;
}
/**
 * Expose `Client`
 */


module.exports = Client;

Client.initOptions = function initOptions(options) {
  if (!options.stsToken) {
    console.warn('Please use STS Token for safety, see more details at https://help.aliyun.com/document_detail/32077.html');
  }

  var opts = Object.assign({
    secure: isHttpsWebProtocol(),
    // for browser compatibility disable fetch.
    useFetch: false
  }, options);
  return _initOptions(opts);
};
/**
 * prototype
 */


var proto = Client.prototype; // mount debug on proto

proto.debug = debug;
/**
 * Object operations
 */

merge(proto, require('./object'));
/**
 * Bucket operations
 */

merge(proto, require('../common/bucket/getBucketWebsite'));
merge(proto, require('../common/bucket/putBucketWebsite'));
merge(proto, require('../common/bucket/deleteBucketWebsite')); // lifecycle

merge(proto, require('../common/bucket/getBucketLifecycle'));
merge(proto, require('../common/bucket/putBucketLifecycle'));
merge(proto, require('../common/bucket/deleteBucketLifecycle')); // multiversion

merge(proto, require('../common/bucket/putBucketVersioning'));
merge(proto, require('../common/bucket/getBucketVersioning')); // inventory

merge(proto, require('../common/bucket/getBucketInventory'));
merge(proto, require('../common/bucket/deleteBucketInventory'));
merge(proto, require('../common/bucket/listBucketInventory'));
merge(proto, require('../common/bucket/putBucketInventory')); // worm

merge(proto, require('../common/bucket/abortBucketWorm'));
merge(proto, require('../common/bucket/completeBucketWorm'));
merge(proto, require('../common/bucket/extendBucketWorm'));
merge(proto, require('../common/bucket/getBucketWorm'));
merge(proto, require('../common/bucket/initiateBucketWorm')); // multipart upload

merge(proto, require('./managed-upload'));
/**
 * Multipart operations
 */

merge(proto, require('../common/multipart'));
/**
 * Common module parallel
 */

merge(proto, require('../common/parallel'));
/**
 * get OSS signature
 * @param {String} stringToSign
 * @return {String} the signature
 */

proto.signature = function signature(stringToSign) {
  this.debug('authorization stringToSign: %s', stringToSign, 'info');
  return signUtils.computeSignature(this.options.accessKeySecret, stringToSign, this.options.headerEncoding);
};

proto._getReqUrl = getReqUrl;
/**
 * get author header
 *
 * "Authorization: OSS " + Access Key Id + ":" + Signature
 *
 * Signature = base64(hmac-sha1(Access Key Secret + "\n"
 *  + VERB + "\n"
 *  + CONTENT-MD5 + "\n"
 *  + CONTENT-TYPE + "\n"
 *  + DATE + "\n"
 *  + CanonicalizedOSSHeaders
 *  + CanonicalizedResource))
 *
 * @param {String} method
 * @param {String} resource
 * @param {Object} header
 * @return {String}
 *
 * @api private
 */

proto.authorization = function authorization(method, resource, subres, headers) {
  var stringToSign = signUtils.buildCanonicalString(method.toUpperCase(), resource, {
    headers: headers,
    parameters: subres
  });
  return signUtils.authorization(this.options.accessKeyId, this.options.accessKeySecret, stringToSign, this.options.headerEncoding);
};
/**
 * request oss server
 * @param {Object} params
 *   - {String} object
 *   - {String} bucket
 *   - {Object} [headers]
 *   - {Object} [query]
 *   - {Buffer} [content]
 *   - {Stream} [stream]
 *   - {Stream} [writeStream]
 *   - {String} [mime]
 *   - {Boolean} [xmlResponse]
 *   - {Boolean} [customResponse]
 *   - {Number} [timeout]
 *   - {Object} [ctx] request context, default is `this.ctx`
 *
 * @api private
 */


proto.request = /*#__PURE__*/function () {
  var _ref = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(params) {
    var _this = this;

    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            if (!this.options.retryMax) {
              _context.next = 6;
              break;
            }

            _context.next = 3;
            return retry(request.bind(this), this.options.retryMax, {
              errorHandler: function errorHandler(err) {
                var _errHandle = function _errHandle(_err) {
                  if (params.stream) return false;
                  var statusErr = [-1, -2].includes(_err.status);

                  var requestErrorRetryHandle = _this.options.requestErrorRetryHandle || function () {
                    return true;
                  };

                  return statusErr && requestErrorRetryHandle(_err);
                };

                if (_errHandle(err)) return true;
                return false;
              }
            })(params);

          case 3:
            return _context.abrupt("return", _context.sent);

          case 6:
            return _context.abrupt("return", request.call(this, params));

          case 7:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  return function (_x) {
    return _ref.apply(this, arguments);
  };
}();

function request(_x2) {
  return _request.apply(this, arguments);
}

function _request() {
  _request = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee3(params) {
    var reqParams, result, reqErr, useStream, err, parseData;
    return _regenerator.default.wrap(function _callee3$(_context3) {
      while (1) {
        switch (_context3.prev = _context3.next) {
          case 0:
            if (!(this.options.stsToken && isFunction(this.options.refreshSTSToken))) {
              _context3.next = 3;
              break;
            }

            _context3.next = 3;
            return setSTSToken.call(this);

          case 3:
            reqParams = createRequest.call(this, params);

            if (!this.options.useFetch) {
              reqParams.params.mode = 'disable-fetch';
            }

            useStream = !!params.stream;
            _context3.prev = 6;
            _context3.next = 9;
            return this.urllib.request(reqParams.url, reqParams.params);

          case 9:
            result = _context3.sent;
            this.debug('response %s %s, got %s, headers: %j', params.method, reqParams.url, result.status, result.headers, 'info');
            _context3.next = 16;
            break;

          case 13:
            _context3.prev = 13;
            _context3.t0 = _context3["catch"](6);
            reqErr = _context3.t0;

          case 16:
            if (!(result && params.successStatuses && params.successStatuses.indexOf(result.status) === -1)) {
              _context3.next = 28;
              break;
            }

            _context3.next = 19;
            return this.requestError(result);

          case 19:
            err = _context3.sent;

            if (!(err.code === 'RequestTimeTooSkewed' && !useStream)) {
              _context3.next = 25;
              break;
            }

            this.options.amendTimeSkewed = +new Date(err.serverTime) - new Date();
            _context3.next = 24;
            return this.request(params);

          case 24:
            return _context3.abrupt("return", _context3.sent);

          case 25:
            err.params = params;
            _context3.next = 32;
            break;

          case 28:
            if (!reqErr) {
              _context3.next = 32;
              break;
            }

            _context3.next = 31;
            return this.requestError(reqErr);

          case 31:
            err = _context3.sent;

          case 32:
            if (!err) {
              _context3.next = 34;
              break;
            }

            throw err;

          case 34:
            if (!params.xmlResponse) {
              _context3.next = 39;
              break;
            }

            _context3.next = 37;
            return this.parseXML(result.data);

          case 37:
            parseData = _context3.sent;
            result.data = parseData;

          case 39:
            return _context3.abrupt("return", result);

          case 40:
          case "end":
            return _context3.stop();
        }
      }
    }, _callee3, this, [[6, 13]]);
  }));
  return _request.apply(this, arguments);
}

proto._getResource = function _getResource(params) {
  var resource = '/';
  if (params.bucket) resource += "".concat(params.bucket, "/");
  if (params.object) resource += encoder(params.object, this.options.headerEncoding);
  return resource;
};

proto._escape = function _escape(name) {
  return utility.encodeURIComponent(name).replace(/%2F/g, '/');
};
/*
 * Get User-Agent for browser & node.js
 * @example
 *   aliyun-sdk-nodejs/4.1.2 Node.js 5.3.0 on Darwin 64-bit
 *   aliyun-sdk-js/4.1.2 Safari 9.0 on Apple iPhone(iOS 9.2.1)
 *   aliyun-sdk-js/4.1.2 Chrome 43.0.2357.134 32-bit on Windows Server 2008 R2 / 7 64-bit
 */


proto._getUserAgent = function _getUserAgent() {
  var agent = process && process.browser ? 'js' : 'nodejs';
  var sdk = "aliyun-sdk-".concat(agent, "/").concat(pkg.version);
  var plat = platform.description;

  if (!plat && process) {
    plat = "Node.js ".concat(process.version.slice(1), " on ").concat(process.platform, " ").concat(process.arch);
  }

  return this._checkUserAgent("".concat(sdk, " ").concat(plat));
};

proto._checkUserAgent = function _checkUserAgent(ua) {
  var userAgent = ua.replace(/\u03b1/, 'alpha').replace(/\u03b2/, 'beta');
  return userAgent;
};
/*
 * Check Browser And Version
 * @param {String} [name] browser name: like IE, Chrome, Firefox
 * @param {String} [version] browser major version: like 10(IE 10.x), 55(Chrome 55.x), 50(Firefox 50.x)
 * @return {Bool} true or false
 * @api private
 */


proto.checkBrowserAndVersion = function checkBrowserAndVersion(name, version) {
  return bowser.name === name && bowser.version.split('.')[0] === version;
};
/**
 * thunkify xml.parseString
 * @param {String|Buffer} str
 *
 * @api private
 */


proto.parseXML = function parseXMLThunk(str) {
  return new Promise(function (resolve, reject) {
    if (Buffer.isBuffer(str)) {
      str = str.toString();
    }

    xml.parseString(str, {
      explicitRoot: false,
      explicitArray: false
    }, function (err, result) {
      if (err) {
        reject(err);
      } else {
        resolve(result);
      }
    });
  });
};
/**
 * generater a request error with request response
 * @param {Object} result
 *
 * @api private
 */


proto.requestError = /*#__PURE__*/function () {
  var _requestError = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee2(result) {
    var err, message, info, msg;
    return _regenerator.default.wrap(function _callee2$(_context2) {
      while (1) {
        switch (_context2.prev = _context2.next) {
          case 0:
            err = null;

            if (!(!result.data || !result.data.length)) {
              _context2.next = 5;
              break;
            }

            if (result.status === -1 || result.status === -2) {
              // -1 is net error , -2 is timeout
              err = new Error(result.message);
              err.name = result.name;
              err.status = result.status;
              err.code = result.name;
            } else {
              // HEAD not exists resource
              if (result.status === 404) {
                err = new Error('Object not exists');
                err.name = 'NoSuchKeyError';
                err.status = 404;
                err.code = 'NoSuchKey';
              } else if (result.status === 412) {
                err = new Error('Pre condition failed');
                err.name = 'PreconditionFailedError';
                err.status = 412;
                err.code = 'PreconditionFailed';
              } else {
                err = new Error("Unknow error, status: ".concat(result.status));
                err.name = 'UnknowError';
                err.status = result.status;
              }

              err.requestId = result.headers['x-oss-request-id'];
              err.host = '';
            }

            _context2.next = 32;
            break;

          case 5:
            message = String(result.data);
            this.debug('request response error data: %s', message, 'error');
            _context2.prev = 7;
            _context2.next = 10;
            return this.parseXML(message);

          case 10:
            _context2.t0 = _context2.sent;

            if (_context2.t0) {
              _context2.next = 13;
              break;
            }

            _context2.t0 = {};

          case 13:
            info = _context2.t0;
            _context2.next = 23;
            break;

          case 16:
            _context2.prev = 16;
            _context2.t1 = _context2["catch"](7);
            this.debug(message, 'error');
            _context2.t1.message += "\nraw xml: ".concat(message);
            _context2.t1.status = result.status;
            _context2.t1.requestId = result.headers['x-oss-request-id'];
            return _context2.abrupt("return", _context2.t1);

          case 23:
            msg = info.Message || "unknow request error, status: ".concat(result.status);

            if (info.Condition) {
              msg += " (condition: ".concat(info.Condition, ")");
            }

            err = new Error(msg);
            err.name = info.Code ? "".concat(info.Code, "Error") : 'UnknowError';
            err.status = result.status;
            err.code = info.Code;
            err.requestId = info.RequestId;
            err.hostId = info.HostId;
            err.serverTime = info.ServerTime;

          case 32:
            this.debug('generate error %j', err, 'error');
            return _context2.abrupt("return", err);

          case 34:
          case "end":
            return _context2.stop();
        }
      }
    }, _callee2, this, [[7, 16]]);
  }));

  function requestError(_x3) {
    return _requestError.apply(this, arguments);
  }

  return requestError;
}();

}).call(this,{"isBuffer":require("../../node_modules/is-buffer/index.js")},require('_process'))
},{"../../node_modules/is-buffer/index.js":307,"../common/bucket/abortBucketWorm":6,"../common/bucket/completeBucketWorm":7,"../common/bucket/deleteBucketInventory":8,"../common/bucket/deleteBucketLifecycle":9,"../common/bucket/deleteBucketWebsite":10,"../common/bucket/extendBucketWorm":11,"../common/bucket/getBucketInventory":12,"../common/bucket/getBucketLifecycle":13,"../common/bucket/getBucketVersioning":14,"../common/bucket/getBucketWebsite":15,"../common/bucket/getBucketWorm":16,"../common/bucket/initiateBucketWorm":17,"../common/bucket/listBucketInventory":18,"../common/bucket/putBucketInventory":19,"../common/bucket/putBucketLifecycle":20,"../common/bucket/putBucketVersioning":21,"../common/bucket/putBucketWebsite":22,"../common/client/getReqUrl":24,"../common/client/initOptions":25,"../common/multipart":28,"../common/parallel":46,"../common/signUtils":47,"../common/utils/createRequest":52,"../common/utils/encoder":55,"../common/utils/isFunction":63,"../common/utils/retry":68,"../common/utils/setSTSToken":70,"./managed-upload":3,"./object":4,"./version":5,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"_process":392,"agentkeepalive":76,"bowser":78,"core-js/modules/es.array.concat":234,"core-js/modules/es.array.includes":240,"core-js/modules/es.array.index-of":241,"core-js/modules/es.array.slice":246,"core-js/modules/es.function.name":249,"core-js/modules/es.object.assign":251,"core-js/modules/es.object.to-string":254,"core-js/modules/es.promise":255,"core-js/modules/es.regexp.exec":256,"core-js/modules/es.regexp.to-string":257,"core-js/modules/es.string.replace":261,"core-js/modules/es.string.split":263,"core-js/modules/es.symbol":266,"core-js/modules/es.symbol.description":265,"debug":390,"merge-descriptors":310,"platform":316,"regenerator-runtime/runtime":336,"urllib":396,"utility":395,"xml2js":351}],3:[function(require,module,exports){
(function (Buffer){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.array.concat");

require("core-js/modules/es.array.filter");

require("core-js/modules/es.array.find");

require("core-js/modules/es.array.from");

require("core-js/modules/es.array.index-of");

require("core-js/modules/es.array.iterator");

require("core-js/modules/es.array.map");

require("core-js/modules/es.array.slice");

require("core-js/modules/es.array-buffer.slice");

require("core-js/modules/es.function.name");

require("core-js/modules/es.object.to-string");

require("core-js/modules/es.promise");

require("core-js/modules/es.regexp.to-string");

require("core-js/modules/es.string.iterator");

require("core-js/modules/es.typed-array.uint8-array");

require("core-js/modules/es.typed-array.copy-within");

require("core-js/modules/es.typed-array.every");

require("core-js/modules/es.typed-array.fill");

require("core-js/modules/es.typed-array.filter");

require("core-js/modules/es.typed-array.find");

require("core-js/modules/es.typed-array.find-index");

require("core-js/modules/es.typed-array.for-each");

require("core-js/modules/es.typed-array.includes");

require("core-js/modules/es.typed-array.index-of");

require("core-js/modules/es.typed-array.iterator");

require("core-js/modules/es.typed-array.join");

require("core-js/modules/es.typed-array.last-index-of");

require("core-js/modules/es.typed-array.map");

require("core-js/modules/es.typed-array.reduce");

require("core-js/modules/es.typed-array.reduce-right");

require("core-js/modules/es.typed-array.reverse");

require("core-js/modules/es.typed-array.set");

require("core-js/modules/es.typed-array.slice");

require("core-js/modules/es.typed-array.some");

require("core-js/modules/es.typed-array.sort");

require("core-js/modules/es.typed-array.subarray");

require("core-js/modules/es.typed-array.to-locale-string");

require("core-js/modules/es.typed-array.to-string");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

// var debug = require('debug')('ali-oss:multipart');
var util = require('util');

var path = require('path');

var mime = require('mime');

var copy = require('copy-to');

var _require = require('../common/utils/isBlob'),
    isBlob = _require.isBlob;

var _require2 = require('../common/utils/isFile'),
    isFile = _require2.isFile;

var _require3 = require('../common/utils/isArray'),
    isArray = _require3.isArray;

var _require4 = require('../common/utils/isBuffer'),
    isBuffer = _require4.isBuffer;

var _require5 = require('../common/utils/retry'),
    retry = _require5.retry;

var proto = exports;
/**
 * Multipart operations
 */

/**
 * Upload a file to OSS using multipart uploads
 * @param {String} name
 * @param {String|File|Buffer} file
 * @param {Object} options
 *        {Object} options.callback The callback parameter is composed of a JSON string encoded in Base64
 *        {String} options.callback.url the OSS sends a callback request to this URL
 *        {String} options.callback.host The host header value for initiating callback requests
 *        {String} options.callback.body The value of the request body when a callback is initiated
 *        {String} options.callback.contentType The Content-Type of the callback requests initiatiated
 *        {Object} options.callback.customValue Custom parameters are a map of key-values, e.g:
 *                  customValue = {
 *                    key1: 'value1',
 *                    key2: 'value2'
 *                  }
 */

proto.multipartUpload = /*#__PURE__*/function () {
  var _multipartUpload = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name, file) {
    var options,
        minPartSize,
        fileSize,
        result,
        ret,
        initResult,
        uploadId,
        partSize,
        checkpoint,
        _args = arguments;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = _args.length > 2 && _args[2] !== undefined ? _args[2] : {};
            this.resetCancelFlag();
            options.disabledMD5 = options.disabledMD5 === undefined ? true : !!options.disabledMD5;

            if (!(options.checkpoint && options.checkpoint.uploadId)) {
              _context.next = 8;
              break;
            }

            if (file && isFile(file)) options.checkpoint.file = file;
            _context.next = 7;
            return this._resumeMultipart(options.checkpoint, options);

          case 7:
            return _context.abrupt("return", _context.sent);

          case 8:
            minPartSize = 100 * 1024;

            if (!options.mime) {
              if (isFile(file)) {
                options.mime = mime.getType(path.extname(file.name));
              } else if (isBlob(file)) {
                options.mime = file.type;
              } else if (isBuffer(file)) {
                options.mime = '';
              } else {
                options.mime = mime.getType(path.extname(file));
              }
            }

            options.headers = options.headers || {};

            this._convertMetaToHeaders(options.meta, options.headers);

            _context.next = 14;
            return this._getFileSize(file);

          case 14:
            fileSize = _context.sent;

            if (!(fileSize < minPartSize)) {
              _context.next = 26;
              break;
            }

            options.contentLength = fileSize;
            _context.next = 19;
            return this.put(name, file, options);

          case 19:
            result = _context.sent;

            if (!(options && options.progress)) {
              _context.next = 23;
              break;
            }

            _context.next = 23;
            return options.progress(1);

          case 23:
            ret = {
              res: result.res,
              bucket: this.options.bucket,
              name: name,
              etag: result.res.headers.etag
            };

            if (options.headers && options.headers['x-oss-callback'] || options.callback) {
              ret.data = result.data;
            }

            return _context.abrupt("return", ret);

          case 26:
            if (!(options.partSize && !(parseInt(options.partSize, 10) === options.partSize))) {
              _context.next = 28;
              break;
            }

            throw new Error('partSize must be int number');

          case 28:
            if (!(options.partSize && options.partSize < minPartSize)) {
              _context.next = 30;
              break;
            }

            throw new Error("partSize must not be smaller than ".concat(minPartSize));

          case 30:
            _context.next = 32;
            return this.initMultipartUpload(name, options);

          case 32:
            initResult = _context.sent;
            uploadId = initResult.uploadId;
            partSize = this._getPartSize(fileSize, options.partSize);
            checkpoint = {
              file: file,
              name: name,
              fileSize: fileSize,
              partSize: partSize,
              uploadId: uploadId,
              doneParts: []
            };

            if (!(options && options.progress)) {
              _context.next = 39;
              break;
            }

            _context.next = 39;
            return options.progress(0, checkpoint, initResult.res);

          case 39:
            _context.next = 41;
            return this._resumeMultipart(checkpoint, options);

          case 41:
            return _context.abrupt("return", _context.sent);

          case 42:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function multipartUpload(_x, _x2) {
    return _multipartUpload.apply(this, arguments);
  }

  return multipartUpload;
}();
/*
 * Resume multipart upload from checkpoint. The checkpoint will be
 * updated after each successful part upload.
 * @param {Object} checkpoint the checkpoint
 * @param {Object} options
 */


proto._resumeMultipart = /*#__PURE__*/function () {
  var _resumeMultipart2 = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee3(checkpoint, options) {
    var that, file, fileSize, partSize, uploadId, doneParts, name, internalDoneParts, partOffs, numParts, multipartFinish, uploadPartJob, all, done, todo, defaultParallel, parallel, jobErr, abortEvent;
    return _regenerator.default.wrap(function _callee3$(_context3) {
      while (1) {
        switch (_context3.prev = _context3.next) {
          case 0:
            that = this;

            if (!this.isCancel()) {
              _context3.next = 3;
              break;
            }

            throw this._makeCancelEvent();

          case 3:
            file = checkpoint.file, fileSize = checkpoint.fileSize, partSize = checkpoint.partSize, uploadId = checkpoint.uploadId, doneParts = checkpoint.doneParts, name = checkpoint.name;
            internalDoneParts = [];

            if (doneParts.length > 0) {
              copy(doneParts).to(internalDoneParts);
            }

            partOffs = this._divideParts(fileSize, partSize);
            numParts = partOffs.length;
            multipartFinish = false;

            uploadPartJob = function uploadPartJob(self, partNo) {
              // eslint-disable-next-line no-async-promise-executor
              return new Promise( /*#__PURE__*/function () {
                var _ref = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee2(resolve, reject) {
                  var pi, content, data, result, tempErr;
                  return _regenerator.default.wrap(function _callee2$(_context2) {
                    while (1) {
                      switch (_context2.prev = _context2.next) {
                        case 0:
                          _context2.prev = 0;

                          if (self.isCancel()) {
                            _context2.next = 29;
                            break;
                          }

                          pi = partOffs[partNo - 1];
                          _context2.next = 5;
                          return self._createBuffer(file, pi.start, pi.end);

                        case 5:
                          content = _context2.sent;
                          data = {
                            content: content,
                            size: pi.end - pi.start
                          };
                          _context2.prev = 7;
                          _context2.next = 10;
                          return self._uploadPart(name, uploadId, partNo, data, {
                            timeout: options.timeout,
                            disabledMD5: options.disabledMD5
                          });

                        case 10:
                          result = _context2.sent;
                          _context2.next = 18;
                          break;

                        case 13:
                          _context2.prev = 13;
                          _context2.t0 = _context2["catch"](7);

                          if (!(_context2.t0.status === 404)) {
                            _context2.next = 17;
                            break;
                          }

                          throw self._makeAbortEvent();

                        case 17:
                          throw _context2.t0;

                        case 18:
                          if (!(!self.isCancel() && !multipartFinish)) {
                            _context2.next = 26;
                            break;
                          }

                          checkpoint.doneParts.push({
                            number: partNo,
                            etag: result.res.headers.etag
                          });

                          if (!options.progress) {
                            _context2.next = 23;
                            break;
                          }

                          _context2.next = 23;
                          return options.progress(doneParts.length / numParts, checkpoint, result.res);

                        case 23:
                          resolve({
                            number: partNo,
                            etag: result.res.headers.etag
                          });
                          _context2.next = 27;
                          break;

                        case 26:
                          resolve();

                        case 27:
                          _context2.next = 30;
                          break;

                        case 29:
                          resolve();

                        case 30:
                          _context2.next = 41;
                          break;

                        case 32:
                          _context2.prev = 32;
                          _context2.t1 = _context2["catch"](0);
                          tempErr = new Error();
                          tempErr.name = _context2.t1.name;
                          tempErr.message = _context2.t1.message;
                          tempErr.stack = _context2.t1.stack;
                          tempErr.partNum = partNo;
                          copy(_context2.t1).to(tempErr);
                          reject(tempErr);

                        case 41:
                        case "end":
                          return _context2.stop();
                      }
                    }
                  }, _callee2, null, [[0, 32], [7, 13]]);
                }));

                return function (_x5, _x6) {
                  return _ref.apply(this, arguments);
                };
              }());
            };

            all = Array.from(new Array(numParts), function (x, i) {
              return i + 1;
            });
            done = internalDoneParts.map(function (p) {
              return p.number;
            });
            todo = all.filter(function (p) {
              return done.indexOf(p) < 0;
            });
            defaultParallel = 5;
            parallel = options.parallel || defaultParallel; // upload in parallel

            _context3.next = 17;
            return this._parallel(todo, parallel, function (value) {
              return new Promise(function (resolve, reject) {
                uploadPartJob(that, value).then(function (result) {
                  if (result) {
                    internalDoneParts.push(result);
                  }

                  resolve();
                }).catch(function (err) {
                  reject(err);
                });
              });
            });

          case 17:
            jobErr = _context3.sent;
            multipartFinish = true;
            abortEvent = jobErr.find(function (err) {
              return err.name === 'abort';
            });

            if (!abortEvent) {
              _context3.next = 22;
              break;
            }

            throw abortEvent;

          case 22:
            if (!this.isCancel()) {
              _context3.next = 25;
              break;
            }

            uploadPartJob = null;
            throw this._makeCancelEvent();

          case 25:
            if (!(jobErr && jobErr.length > 0)) {
              _context3.next = 28;
              break;
            }

            jobErr[0].message = "Failed to upload some parts with error: ".concat(jobErr[0].toString(), " part_num: ").concat(jobErr[0].partNum);
            throw jobErr[0];

          case 28:
            _context3.next = 30;
            return this.completeMultipartUpload(name, uploadId, internalDoneParts, options);

          case 30:
            return _context3.abrupt("return", _context3.sent);

          case 31:
          case "end":
            return _context3.stop();
        }
      }
    }, _callee3, this);
  }));

  function _resumeMultipart(_x3, _x4) {
    return _resumeMultipart2.apply(this, arguments);
  }

  return _resumeMultipart;
}();
/**
 * Get file size
 */


proto._getFileSize = /*#__PURE__*/function () {
  var _getFileSize2 = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee4(file) {
    return _regenerator.default.wrap(function _callee4$(_context4) {
      while (1) {
        switch (_context4.prev = _context4.next) {
          case 0:
            if (!isBuffer(file)) {
              _context4.next = 4;
              break;
            }

            return _context4.abrupt("return", file.length);

          case 4:
            if (!(isBlob(file) || isFile(file))) {
              _context4.next = 6;
              break;
            }

            return _context4.abrupt("return", file.size);

          case 6:
            throw new Error('_getFileSize requires Buffer/File/Blob.');

          case 7:
          case "end":
            return _context4.stop();
        }
      }
    }, _callee4);
  }));

  function _getFileSize(_x7) {
    return _getFileSize2.apply(this, arguments);
  }

  return _getFileSize;
}();
/*
 * Readable stream for Web File
 */


var _require6 = require('stream'),
    Readable = _require6.Readable;

function WebFileReadStream(file, options) {
  if (!(this instanceof WebFileReadStream)) {
    return new WebFileReadStream(file, options);
  }

  Readable.call(this, options);
  this.file = file;
  this.reader = new FileReader();
  this.start = 0;
  this.finish = false;
  this.fileBuffer = null;
}

util.inherits(WebFileReadStream, Readable);

WebFileReadStream.prototype.readFileAndPush = function readFileAndPush(size) {
  if (this.fileBuffer) {
    var pushRet = true;

    while (pushRet && this.fileBuffer && this.start < this.fileBuffer.length) {
      var start = this.start;
      var end = start + size;
      end = end > this.fileBuffer.length ? this.fileBuffer.length : end;
      this.start = end;
      pushRet = this.push(this.fileBuffer.slice(start, end));
    }
  }
};

WebFileReadStream.prototype._read = function _read(size) {
  if (this.file && this.start >= this.file.size || this.fileBuffer && this.start >= this.fileBuffer.length || this.finish || this.start === 0 && !this.file) {
    if (!this.finish) {
      this.fileBuffer = null;
      this.finish = true;
    }

    this.push(null);
    return;
  }

  var defaultReadSize = 16 * 1024;
  size = size || defaultReadSize;
  var that = this;

  this.reader.onload = function onload(e) {
    that.fileBuffer = Buffer.from(new Uint8Array(e.target.result));
    that.file = null;
    that.readFileAndPush(size);
  };

  if (this.start === 0) {
    this.reader.readAsArrayBuffer(this.file);
  } else {
    this.readFileAndPush(size);
  }
};

function getBuffer(file) {
  // Some browsers do not support Blob.prototype.arrayBuffer, such as IE
  if (file.arrayBuffer) return file.arrayBuffer();
  return new Promise(function (resolve, reject) {
    var reader = new FileReader();

    reader.onload = function (e) {
      resolve(e.target.result);
    };

    reader.onerror = function (e) {
      reject(e);
    };

    reader.readAsArrayBuffer(file);
  });
}

proto._createBuffer = /*#__PURE__*/function () {
  var _createBuffer2 = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee5(file, start, end) {
    var _file, fileContent;

    return _regenerator.default.wrap(function _callee5$(_context5) {
      while (1) {
        switch (_context5.prev = _context5.next) {
          case 0:
            if (!(isBlob(file) || isFile(file))) {
              _context5.next = 8;
              break;
            }

            _file = file.slice(start, end);
            _context5.next = 4;
            return getBuffer(_file);

          case 4:
            fileContent = _context5.sent;
            return _context5.abrupt("return", Buffer.from(fileContent));

          case 8:
            if (!isBuffer(file)) {
              _context5.next = 12;
              break;
            }

            return _context5.abrupt("return", file.subarray(start, end));

          case 12:
            throw new Error('_createBuffer requires File/Blob/Buffer.');

          case 13:
          case "end":
            return _context5.stop();
        }
      }
    }, _callee5);
  }));

  function _createBuffer(_x8, _x9, _x10) {
    return _createBuffer2.apply(this, arguments);
  }

  return _createBuffer;
}();

proto._getPartSize = function _getPartSize(fileSize, partSize) {
  var maxNumParts = 10 * 1000;
  var defaultPartSize = 1 * 1024 * 1024;
  if (!partSize) partSize = defaultPartSize;
  var safeSize = Math.ceil(fileSize / maxNumParts);

  if (partSize < safeSize) {
    partSize = safeSize;
    console.warn("partSize has been set to ".concat(partSize, ", because the partSize you provided causes partNumber to be greater than 10,000"));
  }

  return partSize;
};

proto._divideParts = function _divideParts(fileSize, partSize) {
  var numParts = Math.ceil(fileSize / partSize);
  var partOffs = [];

  for (var i = 0; i < numParts; i++) {
    var start = partSize * i;
    var end = Math.min(start + partSize, fileSize);
    partOffs.push({
      start: start,
      end: end
    });
  }

  return partOffs;
};

}).call(this,require("buffer").Buffer)
},{"../common/utils/isArray":59,"../common/utils/isBlob":60,"../common/utils/isBuffer":61,"../common/utils/isFile":62,"../common/utils/retry":68,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"buffer":99,"copy-to":101,"core-js/modules/es.array-buffer.slice":233,"core-js/modules/es.array.concat":234,"core-js/modules/es.array.filter":236,"core-js/modules/es.array.find":237,"core-js/modules/es.array.from":239,"core-js/modules/es.array.index-of":241,"core-js/modules/es.array.iterator":242,"core-js/modules/es.array.map":245,"core-js/modules/es.array.slice":246,"core-js/modules/es.function.name":249,"core-js/modules/es.object.to-string":254,"core-js/modules/es.promise":255,"core-js/modules/es.regexp.to-string":257,"core-js/modules/es.string.iterator":259,"core-js/modules/es.typed-array.copy-within":267,"core-js/modules/es.typed-array.every":268,"core-js/modules/es.typed-array.fill":269,"core-js/modules/es.typed-array.filter":270,"core-js/modules/es.typed-array.find":272,"core-js/modules/es.typed-array.find-index":271,"core-js/modules/es.typed-array.for-each":273,"core-js/modules/es.typed-array.includes":274,"core-js/modules/es.typed-array.index-of":275,"core-js/modules/es.typed-array.iterator":276,"core-js/modules/es.typed-array.join":277,"core-js/modules/es.typed-array.last-index-of":278,"core-js/modules/es.typed-array.map":279,"core-js/modules/es.typed-array.reduce":281,"core-js/modules/es.typed-array.reduce-right":280,"core-js/modules/es.typed-array.reverse":282,"core-js/modules/es.typed-array.set":283,"core-js/modules/es.typed-array.slice":284,"core-js/modules/es.typed-array.some":285,"core-js/modules/es.typed-array.sort":286,"core-js/modules/es.typed-array.subarray":287,"core-js/modules/es.typed-array.to-locale-string":288,"core-js/modules/es.typed-array.to-string":289,"core-js/modules/es.typed-array.uint8-array":290,"mime":312,"path":315,"regenerator-runtime/runtime":336,"stream":339,"util":345}],4:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.array.for-each");

require("core-js/modules/es.array.map");

require("core-js/modules/es.function.name");

require("core-js/modules/es.number.constructor");

require("core-js/modules/es.object.assign");

require("core-js/modules/es.object.keys");

require("core-js/modules/es.object.to-string");

require("core-js/modules/es.promise");

require("core-js/modules/es.regexp.exec");

require("core-js/modules/es.regexp.to-string");

require("core-js/modules/es.string.replace");

require("core-js/modules/web.dom-collections.for-each");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

// const debug = require('debug')('ali-oss:object');
var fs = require('fs');

var copy = require('copy-to');

var path = require('path');

var mime = require('mime');

var callback = require('../common/callback');

var merge = require('merge-descriptors');

var _require = require('../common/utils/isBlob'),
    isBlob = _require.isBlob;

var _require2 = require('../common/utils/isFile'),
    isFile = _require2.isFile;

var _require3 = require('../common/utils/isBuffer'),
    isBuffer = _require3.isBuffer; // var assert = require('assert');


var proto = exports;
/**
 * Object operations
 */

/**
 * append an object from String(file path)/Buffer/ReadableStream
 * @param {String} name the object key
 * @param {Mixed} file String(file path)/Buffer/ReadableStream
 * @param {Object} options
 * @return {Object}
 */

proto.append = /*#__PURE__*/function () {
  var _append = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name, file, options) {
    var result;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = options || {};
            if (options.position === undefined) options.position = '0';
            options.subres = {
              append: '',
              position: options.position
            };
            options.method = 'POST';
            _context.next = 6;
            return this.put(name, file, options);

          case 6:
            result = _context.sent;
            result.nextAppendPosition = result.res.headers['x-oss-next-append-position'];
            return _context.abrupt("return", result);

          case 9:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function append(_x, _x2, _x3) {
    return _append.apply(this, arguments);
  }

  return append;
}();
/**
 * put an object from String(file path)/Buffer/ReadableStream
 * @param {String} name the object key
 * @param {Mixed} file String(file path)/Buffer/ReadableStream
 * @param {Object} options
 *        {Object} options.callback The callback parameter is composed of a JSON string encoded in Base64
 *        {String} options.callback.url  the OSS sends a callback request to this URL
 *        {String} options.callback.host  The host header value for initiating callback requests
 *        {String} options.callback.body  The value of the request body when a callback is initiated
 *        {String} options.callback.contentType  The Content-Type of the callback requests initiatiated
 *        {Object} options.callback.customValue  Custom parameters are a map of key-values, e.g:
 *                  customValue = {
 *                    key1: 'value1',
 *                    key2: 'value2'
 *                  }
 * @return {Object}
 */


proto.put = /*#__PURE__*/function () {
  var _put = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee2(name, file, options) {
    var content, method, params, result, ret;
    return _regenerator.default.wrap(function _callee2$(_context2) {
      while (1) {
        switch (_context2.prev = _context2.next) {
          case 0:
            options = options || {};
            options.disabledMD5 = options.disabledMD5 === undefined ? true : !!options.disabledMD5;
            options.headers = options.headers || {};
            name = this._objectName(name);

            if (!isBuffer(file)) {
              _context2.next = 8;
              break;
            }

            content = file;
            _context2.next = 19;
            break;

          case 8:
            if (!(isBlob(file) || isFile(file))) {
              _context2.next = 18;
              break;
            }

            if (!options.mime) {
              if (isFile(file)) {
                options.mime = mime.getType(path.extname(file.name));
              } else {
                options.mime = file.type;
              }
            }

            _context2.next = 12;
            return this._createBuffer(file, 0, file.size);

          case 12:
            content = _context2.sent;
            _context2.next = 15;
            return this._getFileSize(file);

          case 15:
            options.contentLength = _context2.sent;
            _context2.next = 19;
            break;

          case 18:
            throw new TypeError('Must provide Buffer/Blob/File for put.');

          case 19:
            this._convertMetaToHeaders(options.meta, options.headers);

            method = options.method || 'PUT';
            params = this._objectRequestParams(method, name, options);
            callback.encodeCallback(params, options);
            params.mime = options.mime;
            params.disabledMD5 = options.disabledMD5;
            params.content = content;
            params.successStatuses = [200];
            _context2.next = 29;
            return this.request(params);

          case 29:
            result = _context2.sent;
            ret = {
              name: name,
              url: this._objectUrl(name),
              res: result.res
            };

            if (params.headers && params.headers['x-oss-callback']) {
              ret.data = JSON.parse(result.data.toString());
            }

            return _context2.abrupt("return", ret);

          case 33:
          case "end":
            return _context2.stop();
        }
      }
    }, _callee2, this);
  }));

  function put(_x4, _x5, _x6) {
    return _put.apply(this, arguments);
  }

  return put;
}();
/**
 * put an object from ReadableStream. If `options.contentLength` is
 * not provided, chunked encoding is used.
 * @param {String} name the object key
 * @param {Readable} stream the ReadableStream
 * @param {Object} options
 * @return {Object}
 */


proto.putStream = /*#__PURE__*/function () {
  var _putStream = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee3(name, stream, options) {
    var method, params, result, ret;
    return _regenerator.default.wrap(function _callee3$(_context3) {
      while (1) {
        switch (_context3.prev = _context3.next) {
          case 0:
            options = options || {};
            options.headers = options.headers || {};
            name = this._objectName(name);

            if (options.contentLength) {
              options.headers['Content-Length'] = options.contentLength;
            } else {
              options.headers['Transfer-Encoding'] = 'chunked';
            }

            this._convertMetaToHeaders(options.meta, options.headers);

            method = options.method || 'PUT';
            params = this._objectRequestParams(method, name, options);
            callback.encodeCallback(params, options);
            params.mime = options.mime;
            params.stream = stream;
            params.successStatuses = [200];
            _context3.next = 13;
            return this.request(params);

          case 13:
            result = _context3.sent;
            ret = {
              name: name,
              url: this._objectUrl(name),
              res: result.res
            };

            if (params.headers && params.headers['x-oss-callback']) {
              ret.data = JSON.parse(result.data.toString());
            }

            return _context3.abrupt("return", ret);

          case 17:
          case "end":
            return _context3.stop();
        }
      }
    }, _callee3, this);
  }));

  function putStream(_x7, _x8, _x9) {
    return _putStream.apply(this, arguments);
  }

  return putStream;
}();

merge(proto, require('../common/object/copyObject'));
merge(proto, require('../common/object/getObjectTagging'));
merge(proto, require('../common/object/putObjectTagging'));
merge(proto, require('../common/object/deleteObjectTagging'));
merge(proto, require('../common/image'));
merge(proto, require('../common/object/getBucketVersions'));
merge(proto, require('../common/object/getACL'));
merge(proto, require('../common/object/putACL'));
merge(proto, require('../common/object/head'));
merge(proto, require('../common/object/delete'));
merge(proto, require('../common/object/get'));
merge(proto, require('../common/object/putSymlink'));
merge(proto, require('../common/object/getSymlink'));
merge(proto, require('../common/object/deleteMulti'));
merge(proto, require('../common/object/getObjectMeta'));
merge(proto, require('../common/object/getObjectUrl'));
merge(proto, require('../common/object/generateObjectUrl'));
merge(proto, require('../common/object/signatureUrl'));

proto.putMeta = /*#__PURE__*/function () {
  var _putMeta = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee4(name, meta, options) {
    var copyResult;
    return _regenerator.default.wrap(function _callee4$(_context4) {
      while (1) {
        switch (_context4.prev = _context4.next) {
          case 0:
            _context4.next = 2;
            return this.copy(name, name, {
              meta: meta || {},
              timeout: options && options.timeout,
              ctx: options && options.ctx
            });

          case 2:
            copyResult = _context4.sent;
            return _context4.abrupt("return", copyResult);

          case 4:
          case "end":
            return _context4.stop();
        }
      }
    }, _callee4, this);
  }));

  function putMeta(_x10, _x11, _x12) {
    return _putMeta.apply(this, arguments);
  }

  return putMeta;
}();

proto.list = /*#__PURE__*/function () {
  var _list = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee5(query, options) {
    var params, result, objects, that, prefixes;
    return _regenerator.default.wrap(function _callee5$(_context5) {
      while (1) {
        switch (_context5.prev = _context5.next) {
          case 0:
            // prefix, marker, max-keys, delimiter
            params = this._objectRequestParams('GET', '', options);
            params.query = query;
            params.xmlResponse = true;
            params.successStatuses = [200];
            _context5.next = 6;
            return this.request(params);

          case 6:
            result = _context5.sent;
            objects = result.data.Contents;
            that = this;

            if (objects) {
              if (!Array.isArray(objects)) {
                objects = [objects];
              }

              objects = objects.map(function (obj) {
                return {
                  name: obj.Key,
                  url: that._objectUrl(obj.Key),
                  lastModified: obj.LastModified,
                  etag: obj.ETag,
                  type: obj.Type,
                  size: Number(obj.Size),
                  storageClass: obj.StorageClass,
                  owner: {
                    id: obj.Owner.ID,
                    displayName: obj.Owner.DisplayName
                  }
                };
              });
            }

            prefixes = result.data.CommonPrefixes || null;

            if (prefixes) {
              if (!Array.isArray(prefixes)) {
                prefixes = [prefixes];
              }

              prefixes = prefixes.map(function (item) {
                return item.Prefix;
              });
            }

            return _context5.abrupt("return", {
              res: result.res,
              objects: objects,
              prefixes: prefixes,
              nextMarker: result.data.NextMarker || null,
              isTruncated: result.data.IsTruncated === 'true'
            });

          case 13:
          case "end":
            return _context5.stop();
        }
      }
    }, _callee5, this);
  }));

  function list(_x13, _x14) {
    return _list.apply(this, arguments);
  }

  return list;
}();

proto.listV2 = /*#__PURE__*/function () {
  var _listV = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee6(query) {
    var options,
        continuation_token,
        params,
        result,
        objects,
        that,
        prefixes,
        _args6 = arguments;
    return _regenerator.default.wrap(function _callee6$(_context6) {
      while (1) {
        switch (_context6.prev = _context6.next) {
          case 0:
            options = _args6.length > 1 && _args6[1] !== undefined ? _args6[1] : {};
            continuation_token = query['continuation-token'] || query.continuationToken;
            delete query['continuation-token'];
            delete query.continuationToken;

            if (continuation_token) {
              options.subres = Object.assign({
                'continuation-token': continuation_token
              }, options.subres);
            }

            params = this._objectRequestParams('GET', '', options);
            params.query = Object.assign({
              'list-type': 2
            }, query);
            params.xmlResponse = true;
            params.successStatuses = [200];
            _context6.next = 11;
            return this.request(params);

          case 11:
            result = _context6.sent;
            objects = result.data.Contents;
            that = this;

            if (objects) {
              if (!Array.isArray(objects)) {
                objects = [objects];
              }

              objects = objects.map(function (obj) {
                return {
                  name: obj.Key,
                  url: that._objectUrl(obj.Key),
                  lastModified: obj.LastModified,
                  etag: obj.ETag,
                  type: obj.Type,
                  size: Number(obj.Size),
                  storageClass: obj.StorageClass,
                  owner: obj.Owner ? {
                    id: obj.Owner.ID,
                    displayName: obj.Owner.DisplayName
                  } : null
                };
              });
            }

            prefixes = result.data.CommonPrefixes || null;

            if (prefixes) {
              if (!Array.isArray(prefixes)) {
                prefixes = [prefixes];
              }

              prefixes = prefixes.map(function (item) {
                return item.Prefix;
              });
            }

            return _context6.abrupt("return", {
              res: result.res,
              objects: objects,
              prefixes: prefixes,
              isTruncated: result.data.IsTruncated === 'true',
              keyCount: +result.data.KeyCount,
              continuationToken: result.data.ContinuationToken || null,
              nextContinuationToken: result.data.NextContinuationToken || null
            });

          case 18:
          case "end":
            return _context6.stop();
        }
      }
    }, _callee6, this);
  }));

  function listV2(_x15) {
    return _listV.apply(this, arguments);
  }

  return listV2;
}();
/**
 * Restore Object
 * @param {String} name the object key
 * @param {Object} options
 * @returns {{res}}
 */


proto.restore = /*#__PURE__*/function () {
  var _restore = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee7(name, options) {
    var params, result;
    return _regenerator.default.wrap(function _callee7$(_context7) {
      while (1) {
        switch (_context7.prev = _context7.next) {
          case 0:
            options = options || {};
            options.subres = Object.assign({
              restore: ''
            }, options.subres);

            if (options.versionId) {
              options.subres.versionId = options.versionId;
            }

            params = this._objectRequestParams('POST', name, options);
            params.successStatuses = [202];
            _context7.next = 7;
            return this.request(params);

          case 7:
            result = _context7.sent;
            return _context7.abrupt("return", {
              res: result.res
            });

          case 9:
          case "end":
            return _context7.stop();
        }
      }
    }, _callee7, this);
  }));

  function restore(_x16, _x17) {
    return _restore.apply(this, arguments);
  }

  return restore;
}();

proto._objectUrl = function _objectUrl(name) {
  return this._getReqUrl({
    bucket: this.options.bucket,
    object: name
  });
};
/**
 * generator request params
 * @return {Object} params
 *
 * @api private
 */


proto._objectRequestParams = function _objectRequestParams(method, name, options) {
  if (!this.options.bucket && !this.options.cname) {
    throw new Error('Please create a bucket first');
  }

  options = options || {};
  name = this._objectName(name);
  var params = {
    object: name,
    bucket: this.options.bucket,
    method: method,
    subres: options && options.subres,
    timeout: options && options.timeout,
    ctx: options && options.ctx
  };

  if (options.headers) {
    params.headers = {};
    copy(options.headers).to(params.headers);
  }

  return params;
};

proto._objectName = function _objectName(name) {
  return name.replace(/^\/+/, '');
};

proto._convertMetaToHeaders = function _convertMetaToHeaders(meta, headers) {
  if (!meta) {
    return;
  }

  Object.keys(meta).forEach(function (k) {
    headers["x-oss-meta-".concat(k)] = meta[k];
  });
};

proto._deleteFileSafe = function _deleteFileSafe(filepath) {
  var _this = this;

  return new Promise(function (resolve) {
    fs.exists(filepath, function (exists) {
      if (!exists) {
        resolve();
      } else {
        fs.unlink(filepath, function (err) {
          if (err) {
            _this.debug('unlink %j error: %s', filepath, err, 'error');
          }

          resolve();
        });
      }
    });
  });
};

},{"../common/callback":23,"../common/image":26,"../common/object/copyObject":29,"../common/object/delete":30,"../common/object/deleteMulti":31,"../common/object/deleteObjectTagging":32,"../common/object/generateObjectUrl":33,"../common/object/get":34,"../common/object/getACL":35,"../common/object/getBucketVersions":36,"../common/object/getObjectMeta":37,"../common/object/getObjectTagging":38,"../common/object/getObjectUrl":39,"../common/object/getSymlink":40,"../common/object/head":41,"../common/object/putACL":42,"../common/object/putObjectTagging":43,"../common/object/putSymlink":44,"../common/object/signatureUrl":45,"../common/utils/isBlob":60,"../common/utils/isBuffer":61,"../common/utils/isFile":62,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"copy-to":101,"core-js/modules/es.array.for-each":238,"core-js/modules/es.array.map":245,"core-js/modules/es.function.name":249,"core-js/modules/es.number.constructor":250,"core-js/modules/es.object.assign":251,"core-js/modules/es.object.keys":253,"core-js/modules/es.object.to-string":254,"core-js/modules/es.promise":255,"core-js/modules/es.regexp.exec":256,"core-js/modules/es.regexp.to-string":257,"core-js/modules/es.string.replace":261,"core-js/modules/web.dom-collections.for-each":291,"fs":79,"merge-descriptors":310,"mime":312,"path":315,"regenerator-runtime/runtime":336}],5:[function(require,module,exports){
"use strict";

exports.version = "6.16.0";

},{}],6:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.abortBucketWorm = void 0;

var checkBucketName_1 = require("../utils/checkBucketName");

function abortBucketWorm(_x, _x2) {
  return _abortBucketWorm.apply(this, arguments);
}

function _abortBucketWorm() {
  _abortBucketWorm = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name, options) {
    var params, result;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            checkBucketName_1.checkBucketName(name);
            params = this._bucketRequestParams('DELETE', name, 'worm', options);
            _context.next = 4;
            return this.request(params);

          case 4:
            result = _context.sent;
            return _context.abrupt("return", {
              res: result.res,
              status: result.status
            });

          case 6:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));
  return _abortBucketWorm.apply(this, arguments);
}

exports.abortBucketWorm = abortBucketWorm;

},{"../utils/checkBucketName":48,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"regenerator-runtime/runtime":336}],7:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.completeBucketWorm = void 0;

var checkBucketName_1 = require("../utils/checkBucketName");

function completeBucketWorm(_x, _x2, _x3) {
  return _completeBucketWorm.apply(this, arguments);
}

function _completeBucketWorm() {
  _completeBucketWorm = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name, wormId, options) {
    var params, result;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            checkBucketName_1.checkBucketName(name);
            params = this._bucketRequestParams('POST', name, {
              wormId: wormId
            }, options);
            _context.next = 4;
            return this.request(params);

          case 4:
            result = _context.sent;
            return _context.abrupt("return", {
              res: result.res,
              status: result.status
            });

          case 6:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));
  return _completeBucketWorm.apply(this, arguments);
}

exports.completeBucketWorm = completeBucketWorm;

},{"../utils/checkBucketName":48,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"regenerator-runtime/runtime":336}],8:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.object.assign");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.deleteBucketInventory = void 0;

var checkBucketName_1 = require("../utils/checkBucketName");
/**
 * deleteBucketInventory
 * @param {String} bucketName - bucket name
 * @param {String} inventoryId
 * @param {Object} options
 */


function deleteBucketInventory(_x, _x2) {
  return _deleteBucketInventory.apply(this, arguments);
}

function _deleteBucketInventory() {
  _deleteBucketInventory = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(bucketName, inventoryId) {
    var options,
        subres,
        params,
        result,
        _args = arguments;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = _args.length > 2 && _args[2] !== undefined ? _args[2] : {};
            subres = Object.assign({
              inventory: '',
              inventoryId: inventoryId
            }, options.subres);
            checkBucketName_1.checkBucketName(bucketName);
            params = this._bucketRequestParams('DELETE', bucketName, subres, options);
            params.successStatuses = [204];
            _context.next = 7;
            return this.request(params);

          case 7:
            result = _context.sent;
            return _context.abrupt("return", {
              status: result.status,
              res: result.res
            });

          case 9:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));
  return _deleteBucketInventory.apply(this, arguments);
}

exports.deleteBucketInventory = deleteBucketInventory;

},{"../utils/checkBucketName":48,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.object.assign":251,"regenerator-runtime/runtime":336}],9:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var _require = require('../utils/checkBucketName'),
    _checkBucketName = _require.checkBucketName;

var proto = exports;

proto.deleteBucketLifecycle = /*#__PURE__*/function () {
  var _deleteBucketLifecycle = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name, options) {
    var params, result;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            _checkBucketName(name);

            params = this._bucketRequestParams('DELETE', name, 'lifecycle', options);
            params.successStatuses = [204];
            _context.next = 5;
            return this.request(params);

          case 5:
            result = _context.sent;
            return _context.abrupt("return", {
              res: result.res
            });

          case 7:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function deleteBucketLifecycle(_x, _x2) {
    return _deleteBucketLifecycle.apply(this, arguments);
  }

  return deleteBucketLifecycle;
}();

},{"../utils/checkBucketName":48,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"regenerator-runtime/runtime":336}],10:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var _require = require('../utils/checkBucketName'),
    _checkBucketName = _require.checkBucketName;

var proto = exports;

proto.deleteBucketWebsite = /*#__PURE__*/function () {
  var _deleteBucketWebsite = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name, options) {
    var params, result;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            _checkBucketName(name);

            params = this._bucketRequestParams('DELETE', name, 'website', options);
            params.successStatuses = [204];
            _context.next = 5;
            return this.request(params);

          case 5:
            result = _context.sent;
            return _context.abrupt("return", {
              res: result.res
            });

          case 7:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function deleteBucketWebsite(_x, _x2) {
    return _deleteBucketWebsite.apply(this, arguments);
  }

  return deleteBucketWebsite;
}();

},{"../utils/checkBucketName":48,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"regenerator-runtime/runtime":336}],11:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.extendBucketWorm = void 0;

var checkBucketName_1 = require("../utils/checkBucketName");

var obj2xml_1 = require("../utils/obj2xml");

function extendBucketWorm(_x, _x2, _x3, _x4) {
  return _extendBucketWorm.apply(this, arguments);
}

function _extendBucketWorm() {
  _extendBucketWorm = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name, wormId, days, options) {
    var params, paramlXMLObJ, result;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            checkBucketName_1.checkBucketName(name);
            params = this._bucketRequestParams('POST', name, {
              wormExtend: '',
              wormId: wormId
            }, options);
            paramlXMLObJ = {
              ExtendWormConfiguration: {
                RetentionPeriodInDays: days
              }
            };
            params.mime = 'xml';
            params.content = obj2xml_1.obj2xml(paramlXMLObJ, {
              headers: true
            });
            params.successStatuses = [200];
            _context.next = 8;
            return this.request(params);

          case 8:
            result = _context.sent;
            return _context.abrupt("return", {
              res: result.res,
              status: result.status
            });

          case 10:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));
  return _extendBucketWorm.apply(this, arguments);
}

exports.extendBucketWorm = extendBucketWorm;

},{"../utils/checkBucketName":48,"../utils/obj2xml":67,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"regenerator-runtime/runtime":336}],12:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.object.assign");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getBucketInventory = void 0;

var checkBucketName_1 = require("../utils/checkBucketName");

var formatInventoryConfig_1 = require("../utils/formatInventoryConfig");
/**
 * getBucketInventory
 * @param {String} bucketName - bucket name
 * @param {String} inventoryId
 * @param {Object} options
 */


function getBucketInventory(_x, _x2) {
  return _getBucketInventory.apply(this, arguments);
}

function _getBucketInventory() {
  _getBucketInventory = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(bucketName, inventoryId) {
    var options,
        subres,
        params,
        result,
        _args = arguments;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = _args.length > 2 && _args[2] !== undefined ? _args[2] : {};
            subres = Object.assign({
              inventory: '',
              inventoryId: inventoryId
            }, options.subres);
            checkBucketName_1.checkBucketName(bucketName);
            params = this._bucketRequestParams('GET', bucketName, subres, options);
            params.successStatuses = [200];
            params.xmlResponse = true;
            _context.next = 8;
            return this.request(params);

          case 8:
            result = _context.sent;
            return _context.abrupt("return", {
              status: result.status,
              res: result.res,
              inventory: formatInventoryConfig_1.formatInventoryConfig(result.data)
            });

          case 10:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));
  return _getBucketInventory.apply(this, arguments);
}

exports.getBucketInventory = getBucketInventory;

},{"../utils/checkBucketName":48,"../utils/formatInventoryConfig":56,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.object.assign":251,"regenerator-runtime/runtime":336}],13:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.array.map");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var _require = require('../utils/checkBucketName'),
    _checkBucketName = _require.checkBucketName;

var _require2 = require('../utils/isArray'),
    isArray = _require2.isArray;

var _require3 = require('../utils/formatObjKey'),
    formatObjKey = _require3.formatObjKey;

var proto = exports;

proto.getBucketLifecycle = /*#__PURE__*/function () {
  var _getBucketLifecycle = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name, options) {
    var params, result, rules;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            _checkBucketName(name);

            params = this._bucketRequestParams('GET', name, 'lifecycle', options);
            params.successStatuses = [200];
            params.xmlResponse = true;
            _context.next = 6;
            return this.request(params);

          case 6:
            result = _context.sent;
            rules = result.data.Rule || null;

            if (rules) {
              if (!isArray(rules)) {
                rules = [rules];
              }

              rules = rules.map(function (_) {
                if (_.ID) {
                  _.id = _.ID;
                  delete _.ID;
                }

                if (_.Tag && !isArray(_.Tag)) {
                  _.Tag = [_.Tag];
                }

                return formatObjKey(_, 'firstLowerCase');
              });
            }

            return _context.abrupt("return", {
              rules: rules,
              res: result.res
            });

          case 10:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function getBucketLifecycle(_x, _x2) {
    return _getBucketLifecycle.apply(this, arguments);
  }

  return getBucketLifecycle;
}();

},{"../utils/checkBucketName":48,"../utils/formatObjKey":57,"../utils/isArray":59,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.array.map":245,"regenerator-runtime/runtime":336}],14:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var _require = require('../utils/checkBucketName'),
    _checkBucketName = _require.checkBucketName;

var proto = exports;
/**
 * getBucketVersioning
 * @param {String} bucketName - bucket name
 */

proto.getBucketVersioning = /*#__PURE__*/function () {
  var _getBucketVersioning = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(bucketName, options) {
    var params, result, versionStatus;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            _checkBucketName(bucketName);

            params = this._bucketRequestParams('GET', bucketName, 'versioning', options);
            params.xmlResponse = true;
            params.successStatuses = [200];
            _context.next = 6;
            return this.request(params);

          case 6:
            result = _context.sent;
            versionStatus = result.data.Status;
            return _context.abrupt("return", {
              status: result.status,
              versionStatus: versionStatus,
              res: result.res
            });

          case 9:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function getBucketVersioning(_x, _x2) {
    return _getBucketVersioning.apply(this, arguments);
  }

  return getBucketVersioning;
}();

},{"../utils/checkBucketName":48,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"regenerator-runtime/runtime":336}],15:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var _require = require('../utils/checkBucketName'),
    _checkBucketName = _require.checkBucketName;

var _require2 = require('../utils/isObject'),
    isObject = _require2.isObject;

var proto = exports;

proto.getBucketWebsite = /*#__PURE__*/function () {
  var _getBucketWebsite = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name, options) {
    var params, result, routingRules;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            _checkBucketName(name);

            params = this._bucketRequestParams('GET', name, 'website', options);
            params.successStatuses = [200];
            params.xmlResponse = true;
            _context.next = 6;
            return this.request(params);

          case 6:
            result = _context.sent;
            routingRules = [];

            if (result.data.RoutingRules && result.data.RoutingRules.RoutingRule) {
              if (isObject(result.data.RoutingRules.RoutingRule)) {
                routingRules = [result.data.RoutingRules.RoutingRule];
              } else {
                routingRules = result.data.RoutingRules.RoutingRule;
              }
            }

            return _context.abrupt("return", {
              index: result.data.IndexDocument && result.data.IndexDocument.Suffix || '',
              supportSubDir: result.data.IndexDocument && result.data.IndexDocument.SupportSubDir || 'false',
              type: result.data.IndexDocument && result.data.IndexDocument.Type,
              routingRules: routingRules,
              error: result.data.ErrorDocument && result.data.ErrorDocument.Key || null,
              res: result.res
            });

          case 10:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function getBucketWebsite(_x, _x2) {
    return _getBucketWebsite.apply(this, arguments);
  }

  return getBucketWebsite;
}();

},{"../utils/checkBucketName":48,"../utils/isObject":65,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"regenerator-runtime/runtime":336}],16:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.object.assign");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getBucketWorm = void 0;

var checkBucketName_1 = require("../utils/checkBucketName");

var dataFix_1 = require("../utils/dataFix");

function getBucketWorm(_x, _x2) {
  return _getBucketWorm.apply(this, arguments);
}

function _getBucketWorm() {
  _getBucketWorm = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name, options) {
    var params, result;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            checkBucketName_1.checkBucketName(name);
            params = this._bucketRequestParams('GET', name, 'worm', options);
            params.successStatuses = [200];
            params.xmlResponse = true;
            _context.next = 6;
            return this.request(params);

          case 6:
            result = _context.sent;
            dataFix_1.dataFix(result.data, {
              lowerFirst: true,
              rename: {
                RetentionPeriodInDays: 'days'
              }
            });
            return _context.abrupt("return", Object.assign(Object.assign({}, result.data), {
              res: result.res,
              status: result.status
            }));

          case 9:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));
  return _getBucketWorm.apply(this, arguments);
}

exports.getBucketWorm = getBucketWorm;

},{"../utils/checkBucketName":48,"../utils/dataFix":53,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.object.assign":251,"regenerator-runtime/runtime":336}],17:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.initiateBucketWorm = void 0;

var obj2xml_1 = require("../utils/obj2xml");

var checkBucketName_1 = require("../utils/checkBucketName");

function initiateBucketWorm(_x, _x2, _x3) {
  return _initiateBucketWorm.apply(this, arguments);
}

function _initiateBucketWorm() {
  _initiateBucketWorm = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name, days, options) {
    var params, paramlXMLObJ, result;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            checkBucketName_1.checkBucketName(name);
            params = this._bucketRequestParams('POST', name, 'worm', options);
            paramlXMLObJ = {
              InitiateWormConfiguration: {
                RetentionPeriodInDays: days
              }
            };
            params.mime = 'xml';
            params.content = obj2xml_1.obj2xml(paramlXMLObJ, {
              headers: true
            });
            params.successStatuses = [200];
            _context.next = 8;
            return this.request(params);

          case 8:
            result = _context.sent;
            return _context.abrupt("return", {
              res: result.res,
              wormId: result.res.headers['x-oss-worm-id'],
              status: result.status
            });

          case 10:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));
  return _initiateBucketWorm.apply(this, arguments);
}

exports.initiateBucketWorm = initiateBucketWorm;

},{"../utils/checkBucketName":48,"../utils/obj2xml":67,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"regenerator-runtime/runtime":336}],18:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.object.assign");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.listBucketInventory = void 0;

var checkBucketName_1 = require("../utils/checkBucketName");

var formatInventoryConfig_1 = require("../utils/formatInventoryConfig");
/**
 * listBucketInventory
 * @param {String} bucketName - bucket name
 * @param {String} inventoryId
 * @param {Object} options
 */


function listBucketInventory(_x) {
  return _listBucketInventory.apply(this, arguments);
}

function _listBucketInventory() {
  _listBucketInventory = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(bucketName) {
    var options,
        continuationToken,
        subres,
        params,
        result,
        data,
        res,
        status,
        _args = arguments;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = _args.length > 1 && _args[1] !== undefined ? _args[1] : {};
            continuationToken = options.continuationToken;
            subres = Object.assign({
              inventory: ''
            }, continuationToken && {
              'continuation-token': continuationToken
            }, options.subres);
            checkBucketName_1.checkBucketName(bucketName);
            params = this._bucketRequestParams('GET', bucketName, subres, options);
            params.successStatuses = [200];
            params.xmlResponse = true;
            _context.next = 9;
            return this.request(params);

          case 9:
            result = _context.sent;
            data = result.data, res = result.res, status = result.status;
            return _context.abrupt("return", {
              isTruncated: data.IsTruncated === 'true',
              nextContinuationToken: data.NextContinuationToken,
              inventoryList: formatInventoryConfig_1.formatInventoryConfig(data.InventoryConfiguration, true),
              status: status,
              res: res
            });

          case 12:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));
  return _listBucketInventory.apply(this, arguments);
}

exports.listBucketInventory = listBucketInventory;

},{"../utils/checkBucketName":48,"../utils/formatInventoryConfig":56,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.object.assign":251,"regenerator-runtime/runtime":336}],19:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.array.concat");

require("core-js/modules/es.object.assign");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.putBucketInventory = void 0;

var checkBucketName_1 = require("../utils/checkBucketName");

var obj2xml_1 = require("../utils/obj2xml");
/**
 * putBucketInventory
 * @param {String} bucketName - bucket name
 * @param {Inventory} inventory
 * @param {Object} options
 */


function putBucketInventory(_x, _x2) {
  return _putBucketInventory.apply(this, arguments);
}

function _putBucketInventory() {
  _putBucketInventory = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(bucketName, inventory) {
    var options,
        subres,
        OSSBucketDestination,
        optionalFields,
        includedObjectVersions,
        destinationBucketPrefix,
        rolePrefix,
        paramXMLObj,
        paramXML,
        params,
        result,
        _args = arguments;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = _args.length > 2 && _args[2] !== undefined ? _args[2] : {};
            subres = Object.assign({
              inventory: '',
              inventoryId: inventory.id
            }, options.subres);
            checkBucketName_1.checkBucketName(bucketName);
            OSSBucketDestination = inventory.OSSBucketDestination, optionalFields = inventory.optionalFields, includedObjectVersions = inventory.includedObjectVersions;
            destinationBucketPrefix = 'acs:oss:::';
            rolePrefix = "acs:ram::".concat(OSSBucketDestination.accountId, ":role/");
            paramXMLObj = {
              InventoryConfiguration: {
                Id: inventory.id,
                IsEnabled: inventory.isEnabled,
                Filter: {
                  Prefix: inventory.prefix || ''
                },
                Destination: {
                  OSSBucketDestination: {
                    Format: OSSBucketDestination.format,
                    AccountId: OSSBucketDestination.accountId,
                    RoleArn: "".concat(rolePrefix).concat(OSSBucketDestination.rolename),
                    Bucket: "".concat(destinationBucketPrefix).concat(OSSBucketDestination.bucket),
                    Prefix: OSSBucketDestination.prefix || '',
                    Encryption: OSSBucketDestination.encryption || ''
                  }
                },
                Schedule: {
                  Frequency: inventory.frequency
                },
                IncludedObjectVersions: includedObjectVersions,
                OptionalFields: {
                  Field: (optionalFields === null || optionalFields === void 0 ? void 0 : optionalFields.field) || []
                }
              }
            };
            paramXML = obj2xml_1.obj2xml(paramXMLObj, {
              headers: true,
              firstUpperCase: true
            });
            params = this._bucketRequestParams('PUT', bucketName, subres, options);
            params.successStatuses = [200];
            params.mime = 'xml';
            params.content = paramXML;
            _context.next = 14;
            return this.request(params);

          case 14:
            result = _context.sent;
            return _context.abrupt("return", {
              status: result.status,
              res: result.res
            });

          case 16:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));
  return _putBucketInventory.apply(this, arguments);
}

exports.putBucketInventory = putBucketInventory;

},{"../utils/checkBucketName":48,"../utils/obj2xml":67,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.array.concat":234,"core-js/modules/es.object.assign":251,"regenerator-runtime/runtime":336}],20:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.array.for-each");

require("core-js/modules/es.array.includes");

require("core-js/modules/web.dom-collections.for-each");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

/* eslint-disable no-use-before-define */
var _require = require('../utils/checkBucketName'),
    _checkBucketName = _require.checkBucketName;

var _require2 = require('../utils/isArray'),
    isArray = _require2.isArray;

var _require3 = require('../utils/deepCopy'),
    deepCopy = _require3.deepCopy;

var _require4 = require('../utils/isObject'),
    isObject = _require4.isObject;

var _require5 = require('../utils/obj2xml'),
    obj2xml = _require5.obj2xml;

var _require6 = require('../utils/checkObjectTag'),
    checkObjectTag = _require6.checkObjectTag;

var _require7 = require('../utils/getStrBytesCount'),
    getStrBytesCount = _require7.getStrBytesCount;

var proto = exports;

proto.putBucketLifecycle = /*#__PURE__*/function () {
  var _putBucketLifecycle = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name, rules, options) {
    var params, Rule, paramXMLObj, paramXML, result;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            _checkBucketName(name);

            if (isArray(rules)) {
              _context.next = 3;
              break;
            }

            throw new Error('rules must be Array');

          case 3:
            params = this._bucketRequestParams('PUT', name, 'lifecycle', options);
            Rule = [];
            paramXMLObj = {
              LifecycleConfiguration: {
                Rule: Rule
              }
            };
            rules.forEach(function (_) {
              defaultDaysAndDate2Expiration(_); // todo delete, 兼容旧版本

              checkRule(_);

              if (_.id) {
                _.ID = _.id;
                delete _.id;
              }

              Rule.push(_);
            });
            paramXML = obj2xml(paramXMLObj, {
              headers: true,
              firstUpperCase: true
            });
            params.content = paramXML;
            params.mime = 'xml';
            params.successStatuses = [200];
            _context.next = 13;
            return this.request(params);

          case 13:
            result = _context.sent;
            return _context.abrupt("return", {
              res: result.res
            });

          case 15:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function putBucketLifecycle(_x, _x2, _x3) {
    return _putBucketLifecycle.apply(this, arguments);
  }

  return putBucketLifecycle;
}(); // todo delete, 兼容旧版本


function defaultDaysAndDate2Expiration(obj) {
  if (obj.days) {
    obj.expiration = {
      days: obj.days
    };
  }

  if (obj.date) {
    obj.expiration = {
      createdBeforeDate: obj.date
    };
  }
}

function checkDaysAndDate(obj, key) {
  var days = obj.days,
      createdBeforeDate = obj.createdBeforeDate;

  if (!days && !createdBeforeDate) {
    throw new Error("".concat(key, " must includes days or createdBeforeDate"));
  } else if (days && !/^[1-9][0-9]*$/.test(days)) {
    throw new Error('days must be a positive integer');
  } else if (createdBeforeDate && !/\d{4}-\d{2}-\d{2}T00:00:00.000Z/.test(createdBeforeDate)) {
    throw new Error('createdBeforeDate must be date and conform to iso8601 format');
  }
}

function handleCheckTag(tag) {
  if (!isArray(tag) && !isObject(tag)) {
    throw new Error('tag must be Object or Array');
  }

  tag = isObject(tag) ? [tag] : tag;
  var tagObj = {};
  var tagClone = deepCopy(tag);
  tagClone.forEach(function (v) {
    tagObj[v.key] = v.value;
  });
  checkObjectTag(tagObj);
}

function checkRule(rule) {
  if (rule.id && getStrBytesCount(rule.id) > 255) throw new Error('ID is composed of 255 bytes at most');
  if (rule.prefix === undefined) throw new Error('Rule must includes prefix');
  if (!['Enabled', 'Disabled'].includes(rule.status)) throw new Error('Status must be  Enabled or Disabled');

  if (rule.transition) {
    if (!['IA', 'Archive'].includes(rule.transition.storageClass)) throw new Error('StorageClass must be  IA or Archive');
    checkDaysAndDate(rule.transition, 'Transition');
  }

  if (rule.expiration) {
    if (!rule.expiration.expiredObjectDeleteMarker) {
      checkDaysAndDate(rule.expiration, 'Expiration');
    } else if (rule.expiration.days || rule.expiration.createdBeforeDate) {
      throw new Error('expiredObjectDeleteMarker cannot be used with days or createdBeforeDate');
    }
  }

  if (rule.abortMultipartUpload) {
    checkDaysAndDate(rule.abortMultipartUpload, 'AbortMultipartUpload');
  }

  if (!rule.expiration && !rule.abortMultipartUpload && !rule.transition && !rule.noncurrentVersionTransition) {
    throw new Error('Rule must includes expiration or abortMultipartUpload or transition or noncurrentVersionTransition');
  }

  if (rule.tag) {
    if (rule.abortMultipartUpload) {
      throw new Error('Tag cannot be used with abortMultipartUpload');
    }

    handleCheckTag(rule.tag);
  }
}

},{"../utils/checkBucketName":48,"../utils/checkObjectTag":50,"../utils/deepCopy":54,"../utils/getStrBytesCount":58,"../utils/isArray":59,"../utils/isObject":65,"../utils/obj2xml":67,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.array.for-each":238,"core-js/modules/es.array.includes":240,"core-js/modules/web.dom-collections.for-each":291,"regenerator-runtime/runtime":336}],21:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.array.includes");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var _require = require('../utils/checkBucketName'),
    _checkBucketName = _require.checkBucketName;

var _require2 = require('../utils/obj2xml'),
    obj2xml = _require2.obj2xml;

var proto = exports;
/**
 * putBucketVersioning
 * @param {String} name - bucket name
 * @param {String} status
 * @param {Object} options
 */

proto.putBucketVersioning = /*#__PURE__*/function () {
  var _putBucketVersioning = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name, status) {
    var options,
        params,
        paramXMLObj,
        result,
        _args = arguments;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = _args.length > 2 && _args[2] !== undefined ? _args[2] : {};

            _checkBucketName(name);

            if (['Enabled', 'Suspended'].includes(status)) {
              _context.next = 4;
              break;
            }

            throw new Error('status must be Enabled or Suspended');

          case 4:
            params = this._bucketRequestParams('PUT', name, 'versioning', options);
            paramXMLObj = {
              VersioningConfiguration: {
                Status: status
              }
            };
            params.mime = 'xml';
            params.content = obj2xml(paramXMLObj, {
              headers: true
            });
            _context.next = 10;
            return this.request(params);

          case 10:
            result = _context.sent;
            return _context.abrupt("return", {
              res: result.res,
              status: result.status
            });

          case 12:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function putBucketVersioning(_x, _x2) {
    return _putBucketVersioning.apply(this, arguments);
  }

  return putBucketVersioning;
}();

},{"../utils/checkBucketName":48,"../utils/obj2xml":67,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.array.includes":240,"regenerator-runtime/runtime":336}],22:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var _require = require('../utils/checkBucketName'),
    _checkBucketName = _require.checkBucketName;

var _require2 = require('../utils/obj2xml'),
    obj2xml = _require2.obj2xml;

var _require3 = require('../utils/isArray'),
    isArray = _require3.isArray;

var proto = exports;

proto.putBucketWebsite = /*#__PURE__*/function () {
  var _putBucketWebsite = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name) {
    var config,
        options,
        params,
        IndexDocument,
        WebsiteConfiguration,
        website,
        result,
        _args = arguments;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            config = _args.length > 1 && _args[1] !== undefined ? _args[1] : {};
            options = _args.length > 2 ? _args[2] : undefined;

            _checkBucketName(name);

            params = this._bucketRequestParams('PUT', name, 'website', options);
            IndexDocument = {
              Suffix: config.index || 'index.html'
            };
            WebsiteConfiguration = {
              IndexDocument: IndexDocument
            };
            website = {
              WebsiteConfiguration: WebsiteConfiguration
            };

            if (config.supportSubDir) {
              IndexDocument.SupportSubDir = config.supportSubDir;
            }

            if (config.type) {
              IndexDocument.Type = config.type;
            }

            if (config.error) {
              WebsiteConfiguration.ErrorDocument = {
                Key: config.error
              };
            }

            if (!(config.routingRules !== undefined)) {
              _context.next = 14;
              break;
            }

            if (isArray(config.routingRules)) {
              _context.next = 13;
              break;
            }

            throw new Error('RoutingRules must be Array');

          case 13:
            WebsiteConfiguration.RoutingRules = {
              RoutingRule: config.routingRules
            };

          case 14:
            website = obj2xml(website);
            params.content = website;
            params.mime = 'xml';
            params.successStatuses = [200];
            _context.next = 20;
            return this.request(params);

          case 20:
            result = _context.sent;
            return _context.abrupt("return", {
              res: result.res
            });

          case 22:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function putBucketWebsite(_x) {
    return _putBucketWebsite.apply(this, arguments);
  }

  return putBucketWebsite;
}();

},{"../utils/checkBucketName":48,"../utils/isArray":59,"../utils/obj2xml":67,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"regenerator-runtime/runtime":336}],23:[function(require,module,exports){
(function (Buffer){
"use strict";

require("core-js/modules/es.array.for-each");

require("core-js/modules/es.object.keys");

require("core-js/modules/es.object.to-string");

require("core-js/modules/es.regexp.to-string");

require("core-js/modules/web.dom-collections.for-each");

exports.encodeCallback = function encodeCallback(reqParams, options) {
  reqParams.headers = reqParams.headers || {};

  if (!Object.prototype.hasOwnProperty.call(reqParams.headers, 'x-oss-callback')) {
    if (options.callback) {
      var json = {
        callbackUrl: encodeURI(options.callback.url),
        callbackBody: options.callback.body
      };

      if (options.callback.host) {
        json.callbackHost = options.callback.host;
      }

      if (options.callback.contentType) {
        json.callbackBodyType = options.callback.contentType;
      }

      var callback = Buffer.from(JSON.stringify(json)).toString('base64');
      reqParams.headers['x-oss-callback'] = callback;

      if (options.callback.customValue) {
        var callbackVar = {};
        Object.keys(options.callback.customValue).forEach(function (key) {
          callbackVar["x:".concat(key)] = options.callback.customValue[key];
        });
        reqParams.headers['x-oss-callback-var'] = Buffer.from(JSON.stringify(callbackVar)).toString('base64');
      }
    }
  }
};

}).call(this,require("buffer").Buffer)
},{"buffer":99,"core-js/modules/es.array.for-each":238,"core-js/modules/es.object.keys":253,"core-js/modules/es.object.to-string":254,"core-js/modules/es.regexp.to-string":257,"core-js/modules/web.dom-collections.for-each":291}],24:[function(require,module,exports){
"use strict";

require("core-js/modules/es.array.concat");

require("core-js/modules/es.array.for-each");

require("core-js/modules/es.regexp.exec");

require("core-js/modules/es.string.replace");

require("core-js/modules/web.dom-collections.for-each");

var __importDefault = void 0 && (void 0).__importDefault || function (mod) {
  return mod && mod.__esModule ? mod : {
    "default": mod
  };
};

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getReqUrl = void 0;

var copy_to_1 = __importDefault(require("copy-to"));

var url_1 = __importDefault(require("url"));

var merge_descriptors_1 = __importDefault(require("merge-descriptors"));

var is_type_of_1 = __importDefault(require("is-type-of"));

var isIP_1 = require("../utils/isIP");

var checkConfigValid_1 = require("../utils/checkConfigValid");

function getReqUrl(params) {
  var ep = {};
  var isCname = this.options.cname;
  checkConfigValid_1.checkConfigValid(this.options.endpoint, 'endpoint');
  copy_to_1.default(this.options.endpoint, false).to(ep);

  if (params.bucket && !isCname && !isIP_1.isIP(ep.hostname) && !this.options.sldEnable) {
    ep.host = "".concat(params.bucket, ".").concat(ep.host);
  }

  var resourcePath = '/';

  if (params.bucket && this.options.sldEnable) {
    resourcePath += "".concat(params.bucket, "/");
  }

  if (params.object) {
    // Preserve '/' in result url
    resourcePath += this._escape(params.object).replace(/\+/g, '%2B');
  }

  ep.pathname = resourcePath;
  var query = {};

  if (params.query) {
    merge_descriptors_1.default(query, params.query);
  }

  if (params.subres) {
    var subresAsQuery = {};

    if (is_type_of_1.default.string(params.subres)) {
      subresAsQuery[params.subres] = '';
    } else if (is_type_of_1.default.array(params.subres)) {
      params.subres.forEach(function (k) {
        subresAsQuery[k] = '';
      });
    } else {
      subresAsQuery = params.subres;
    }

    merge_descriptors_1.default(query, subresAsQuery);
  }

  ep.query = query;
  return url_1.default.format(ep);
}

exports.getReqUrl = getReqUrl;

},{"../utils/checkConfigValid":49,"../utils/isIP":64,"copy-to":101,"core-js/modules/es.array.concat":234,"core-js/modules/es.array.for-each":238,"core-js/modules/es.regexp.exec":256,"core-js/modules/es.string.replace":261,"core-js/modules/web.dom-collections.for-each":291,"is-type-of":391,"merge-descriptors":310,"url":393}],25:[function(require,module,exports){
"use strict";

require("core-js/modules/es.array.concat");

require("core-js/modules/es.object.assign");

require("core-js/modules/es.string.trim");

var ms = require('humanize-ms');

var urlutil = require('url');

var _require = require('../utils/checkBucketName'),
    _checkBucketName = _require.checkBucketName;

var _require2 = require('../utils/setRegion'),
    setRegion = _require2.setRegion;

var _require3 = require('../utils/checkConfigValid'),
    checkConfigValid = _require3.checkConfigValid;

function setEndpoint(endpoint, secure) {
  checkConfigValid(endpoint, 'endpoint');
  var url = urlutil.parse(endpoint);

  if (!url.protocol) {
    url = urlutil.parse("http".concat(secure ? 's' : '', "://").concat(endpoint));
  }

  if (url.protocol !== 'http:' && url.protocol !== 'https:') {
    throw new Error('Endpoint protocol must be http or https.');
  }

  return url;
}

module.exports = function (options) {
  if (!options || !options.accessKeyId || !options.accessKeySecret) {
    throw new Error('require accessKeyId, accessKeySecret');
  }

  if (options.stsToken && !options.refreshSTSToken && !options.refreshSTSTokenInterval) {
    console.warn("It's recommended to set 'refreshSTSToken' and 'refreshSTSTokenInterval' to refresh" + ' stsToken、accessKeyId、accessKeySecret automatically when sts token has expired');
  }

  if (options.bucket) {
    _checkBucketName(options.bucket);
  }

  var opts = Object.assign({
    region: 'oss-cn-hangzhou',
    internal: false,
    secure: false,
    timeout: 60000,
    bucket: null,
    endpoint: null,
    cname: false,
    isRequestPay: false,
    sldEnable: false,
    headerEncoding: 'utf-8',
    refreshSTSToken: null,
    refreshSTSTokenInterval: 60000 * 5,
    retryMax: 0
  }, options);
  opts.accessKeyId = opts.accessKeyId.trim();
  opts.accessKeySecret = opts.accessKeySecret.trim();

  if (opts.timeout) {
    opts.timeout = ms(opts.timeout);
  }

  if (opts.endpoint) {
    opts.endpoint = setEndpoint(opts.endpoint, opts.secure);
  } else if (opts.region) {
    opts.endpoint = setRegion(opts.region, opts.internal, opts.secure);
  } else {
    throw new Error('require options.endpoint or options.region');
  }

  opts.inited = true;
  return opts;
};

},{"../utils/checkBucketName":48,"../utils/checkConfigValid":49,"../utils/setRegion":69,"core-js/modules/es.array.concat":234,"core-js/modules/es.object.assign":251,"core-js/modules/es.string.trim":264,"humanize-ms":298,"url":393}],26:[function(require,module,exports){
"use strict";

var merge = require('merge-descriptors');

var proto = exports;
merge(proto, require('./processObjectSave'));

},{"./processObjectSave":27,"merge-descriptors":310}],27:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.array.concat");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

/* eslint-disable no-use-before-define */
var _require = require('../utils/checkBucketName'),
    _checkBucketName = _require.checkBucketName;

var querystring = require('querystring');

var _require2 = require('js-base64'),
    str2Base64 = _require2.Base64.encode;

var proto = exports;

proto.processObjectSave = /*#__PURE__*/function () {
  var _processObjectSave = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(sourceObject, targetObject, process, targetBucket) {
    var params, bucketParam, content, result;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            checkArgs(sourceObject, 'sourceObject');
            checkArgs(targetObject, 'targetObject');
            checkArgs(process, 'process');
            targetObject = this._objectName(targetObject);

            if (targetBucket) {
              _checkBucketName(targetBucket);
            }

            params = this._objectRequestParams('POST', sourceObject, {
              subres: 'x-oss-process'
            });
            bucketParam = targetBucket ? ",b_".concat(str2Base64(targetBucket)) : '';
            targetObject = str2Base64(targetObject);
            content = {
              'x-oss-process': "".concat(process, "|sys/saveas,o_").concat(targetObject).concat(bucketParam)
            };
            params.content = querystring.stringify(content);
            _context.next = 12;
            return this.request(params);

          case 12:
            result = _context.sent;
            return _context.abrupt("return", {
              res: result.res,
              status: result.res.status
            });

          case 14:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function processObjectSave(_x, _x2, _x3, _x4) {
    return _processObjectSave.apply(this, arguments);
  }

  return processObjectSave;
}();

function checkArgs(name, key) {
  if (!name) {
    throw new Error("".concat(key, " is required"));
  }

  if (typeof name !== 'string') {
    throw new Error("".concat(key, " must be String"));
  }
}

},{"../utils/checkBucketName":48,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.array.concat":234,"js-base64":309,"querystring":322,"regenerator-runtime/runtime":336}],28:[function(require,module,exports){
(function (process){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.array.concat");

require("core-js/modules/es.array.filter");

require("core-js/modules/es.array.map");

require("core-js/modules/es.array.sort");

require("core-js/modules/es.object.to-string");

require("core-js/modules/es.regexp.to-string");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var copy = require('copy-to');

var callback = require('./callback');

var _require = require('./utils/deepCopy'),
    deepCopyWith = _require.deepCopyWith;

var _require2 = require('./utils/isBuffer'),
    isBuffer = _require2.isBuffer;

var proto = exports;
/**
 * List the on-going multipart uploads
 * https://help.aliyun.com/document_detail/31997.html
 * @param {Object} options
 * @return {Array} the multipart uploads
 */

proto.listUploads = /*#__PURE__*/function () {
  var _listUploads = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(query, options) {
    var opt, params, result, uploads;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = options || {};
            opt = {};
            copy(options).to(opt);
            opt.subres = 'uploads';
            params = this._objectRequestParams('GET', '', opt);
            params.query = query;
            params.xmlResponse = true;
            params.successStatuses = [200];
            _context.next = 10;
            return this.request(params);

          case 10:
            result = _context.sent;
            uploads = result.data.Upload || [];

            if (!Array.isArray(uploads)) {
              uploads = [uploads];
            }

            uploads = uploads.map(function (up) {
              return {
                name: up.Key,
                uploadId: up.UploadId,
                initiated: up.Initiated
              };
            });
            return _context.abrupt("return", {
              res: result.res,
              uploads: uploads,
              bucket: result.data.Bucket,
              nextKeyMarker: result.data.NextKeyMarker,
              nextUploadIdMarker: result.data.NextUploadIdMarker,
              isTruncated: result.data.IsTruncated === 'true'
            });

          case 15:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function listUploads(_x, _x2) {
    return _listUploads.apply(this, arguments);
  }

  return listUploads;
}();
/**
 * List the done uploadPart parts
 * @param {String} name object name
 * @param {String} uploadId multipart upload id
 * @param {Object} query
 * {Number} query.max-parts The maximum part number in the response of the OSS. Default value: 1000
 * {Number} query.part-number-marker Starting position of a specific list.
 * {String} query.encoding-type Specify the encoding of the returned content and the encoding type.
 * @param {Object} options
 * @return {Object} result
 */


proto.listParts = /*#__PURE__*/function () {
  var _listParts = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee2(name, uploadId, query, options) {
    var opt, params, result;
    return _regenerator.default.wrap(function _callee2$(_context2) {
      while (1) {
        switch (_context2.prev = _context2.next) {
          case 0:
            options = options || {};
            opt = {};
            copy(options).to(opt);
            opt.subres = {
              uploadId: uploadId
            };
            params = this._objectRequestParams('GET', name, opt);
            params.query = query;
            params.xmlResponse = true;
            params.successStatuses = [200];
            _context2.next = 10;
            return this.request(params);

          case 10:
            result = _context2.sent;
            return _context2.abrupt("return", {
              res: result.res,
              uploadId: result.data.UploadId,
              bucket: result.data.Bucket,
              name: result.data.Key,
              partNumberMarker: result.data.PartNumberMarker,
              nextPartNumberMarker: result.data.NextPartNumberMarker,
              maxParts: result.data.MaxParts,
              isTruncated: result.data.IsTruncated,
              parts: result.data.Part || []
            });

          case 12:
          case "end":
            return _context2.stop();
        }
      }
    }, _callee2, this);
  }));

  function listParts(_x3, _x4, _x5, _x6) {
    return _listParts.apply(this, arguments);
  }

  return listParts;
}();
/**
 * Abort a multipart upload transaction
 * @param {String} name the object name
 * @param {String} uploadId the upload id
 * @param {Object} options
 */


proto.abortMultipartUpload = /*#__PURE__*/function () {
  var _abortMultipartUpload = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee3(name, uploadId, options) {
    var opt, params, result;
    return _regenerator.default.wrap(function _callee3$(_context3) {
      while (1) {
        switch (_context3.prev = _context3.next) {
          case 0:
            this._stop();

            options = options || {};
            opt = {};
            copy(options).to(opt);
            opt.subres = {
              uploadId: uploadId
            };
            params = this._objectRequestParams('DELETE', name, opt);
            params.successStatuses = [204];
            _context3.next = 9;
            return this.request(params);

          case 9:
            result = _context3.sent;
            return _context3.abrupt("return", {
              res: result.res
            });

          case 11:
          case "end":
            return _context3.stop();
        }
      }
    }, _callee3, this);
  }));

  function abortMultipartUpload(_x7, _x8, _x9) {
    return _abortMultipartUpload.apply(this, arguments);
  }

  return abortMultipartUpload;
}();
/**
 * Initiate a multipart upload transaction
 * @param {String} name the object name
 * @param {Object} options
 * @return {String} upload id
 */


proto.initMultipartUpload = /*#__PURE__*/function () {
  var _initMultipartUpload = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee4(name, options) {
    var opt, params, result;
    return _regenerator.default.wrap(function _callee4$(_context4) {
      while (1) {
        switch (_context4.prev = _context4.next) {
          case 0:
            options = options || {};
            opt = {};
            copy(options).to(opt);
            opt.headers = opt.headers || {};

            this._convertMetaToHeaders(options.meta, opt.headers);

            opt.subres = 'uploads';
            params = this._objectRequestParams('POST', name, opt);
            params.mime = options.mime;
            params.xmlResponse = true;
            params.successStatuses = [200];
            _context4.next = 12;
            return this.request(params);

          case 12:
            result = _context4.sent;
            return _context4.abrupt("return", {
              res: result.res,
              bucket: result.data.Bucket,
              name: result.data.Key,
              uploadId: result.data.UploadId
            });

          case 14:
          case "end":
            return _context4.stop();
        }
      }
    }, _callee4, this);
  }));

  function initMultipartUpload(_x10, _x11) {
    return _initMultipartUpload.apply(this, arguments);
  }

  return initMultipartUpload;
}();
/**
 * Upload a part in a multipart upload transaction
 * @param {String} name the object name
 * @param {String} uploadId the upload id
 * @param {Integer} partNo the part number
 * @param {File} file upload File, whole File
 * @param {Integer} start  part start bytes  e.g: 102400
 * @param {Integer} end  part end bytes  e.g: 204800
 * @param {Object} options
 */


proto.uploadPart = /*#__PURE__*/function () {
  var _uploadPart2 = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee5(name, uploadId, partNo, file, start, end, options) {
    var data, isBrowserEnv;
    return _regenerator.default.wrap(function _callee5$(_context5) {
      while (1) {
        switch (_context5.prev = _context5.next) {
          case 0:
            data = {
              size: end - start
            };
            isBrowserEnv = process && process.browser;

            if (!isBrowserEnv) {
              _context5.next = 8;
              break;
            }

            _context5.next = 5;
            return this._createBuffer(file, start, end);

          case 5:
            data.content = _context5.sent;
            _context5.next = 11;
            break;

          case 8:
            _context5.next = 10;
            return this._createStream(file, start, end);

          case 10:
            data.stream = _context5.sent;

          case 11:
            _context5.next = 13;
            return this._uploadPart(name, uploadId, partNo, data, options);

          case 13:
            return _context5.abrupt("return", _context5.sent);

          case 14:
          case "end":
            return _context5.stop();
        }
      }
    }, _callee5, this);
  }));

  function uploadPart(_x12, _x13, _x14, _x15, _x16, _x17, _x18) {
    return _uploadPart2.apply(this, arguments);
  }

  return uploadPart;
}();
/**
 * Complete a multipart upload transaction
 * @param {String} name the object name
 * @param {String} uploadId the upload id
 * @param {Array} parts the uploaded parts, each in the structure:
 *        {Integer} number partNo
 *        {String} etag  part etag  uploadPartCopy result.res.header.etag
 * @param {Object} options
 *         {Object} options.callback The callback parameter is composed of a JSON string encoded in Base64
 *         {String} options.callback.url  the OSS sends a callback request to this URL
 *         {String} options.callback.host  The host header value for initiating callback requests
 *         {String} options.callback.body  The value of the request body when a callback is initiated
 *         {String} options.callback.contentType  The Content-Type of the callback requests initiatiated
 *         {Object} options.callback.customValue  Custom parameters are a map of key-values, e.g:
 *                   customValue = {
 *                     key1: 'value1',
 *                     key2: 'value2'
 *                   }
 */


proto.completeMultipartUpload = /*#__PURE__*/function () {
  var _completeMultipartUpload = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee6(name, uploadId, parts, options) {
    var completeParts, xml, i, p, opt, params, result, ret;
    return _regenerator.default.wrap(function _callee6$(_context6) {
      while (1) {
        switch (_context6.prev = _context6.next) {
          case 0:
            completeParts = parts.concat().sort(function (a, b) {
              return a.number - b.number;
            }).filter(function (item, index, arr) {
              return !index || item.number !== arr[index - 1].number;
            });
            xml = '<?xml version="1.0" encoding="UTF-8"?>\n<CompleteMultipartUpload>\n';

            for (i = 0; i < completeParts.length; i++) {
              p = completeParts[i];
              xml += '<Part>\n';
              xml += "<PartNumber>".concat(p.number, "</PartNumber>\n");
              xml += "<ETag>".concat(p.etag, "</ETag>\n");
              xml += '</Part>\n';
            }

            xml += '</CompleteMultipartUpload>';
            options = options || {};
            opt = {};
            opt = deepCopyWith(options, function (_) {
              if (isBuffer(_)) return null;
            });
            if (opt.headers) delete opt.headers['x-oss-server-side-encryption'];
            opt.subres = {
              uploadId: uploadId
            };
            params = this._objectRequestParams('POST', name, opt);
            callback.encodeCallback(params, opt);
            params.mime = 'xml';
            params.content = xml;

            if (!(params.headers && params.headers['x-oss-callback'])) {
              params.xmlResponse = true;
            }

            params.successStatuses = [200];
            _context6.next = 17;
            return this.request(params);

          case 17:
            result = _context6.sent;
            ret = {
              res: result.res,
              bucket: params.bucket,
              name: name,
              etag: result.res.headers.etag
            };

            if (params.headers && params.headers['x-oss-callback']) {
              ret.data = JSON.parse(result.data.toString());
            }

            return _context6.abrupt("return", ret);

          case 21:
          case "end":
            return _context6.stop();
        }
      }
    }, _callee6, this);
  }));

  function completeMultipartUpload(_x19, _x20, _x21, _x22) {
    return _completeMultipartUpload.apply(this, arguments);
  }

  return completeMultipartUpload;
}();
/**
 * Upload a part in a multipart upload transaction
 * @param {String} name the object name
 * @param {String} uploadId the upload id
 * @param {Integer} partNo the part number
 * @param {Object} data the body data
 * @param {Object} options
 */


proto._uploadPart = /*#__PURE__*/function () {
  var _uploadPart3 = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee7(name, uploadId, partNo, data, options) {
    var opt, params, isBrowserEnv, result;
    return _regenerator.default.wrap(function _callee7$(_context7) {
      while (1) {
        switch (_context7.prev = _context7.next) {
          case 0:
            options = options || {};
            opt = {};
            copy(options).to(opt);
            opt.headers = {
              'Content-Length': data.size
            };
            opt.subres = {
              partNumber: partNo,
              uploadId: uploadId
            };
            params = this._objectRequestParams('PUT', name, opt);
            params.mime = opt.mime;
            isBrowserEnv = process && process.browser;
            isBrowserEnv ? params.content = data.content : params.stream = data.stream;
            params.successStatuses = [200];
            params.disabledMD5 = options.disabledMD5;
            _context7.next = 13;
            return this.request(params);

          case 13:
            result = _context7.sent;

            if (result.res.headers.etag) {
              _context7.next = 16;
              break;
            }

            throw new Error('Please set the etag of expose-headers in OSS \n https://help.aliyun.com/document_detail/32069.html');

          case 16:
            if (data.stream) {
              data.stream = null;
              params.stream = null;
            }

            return _context7.abrupt("return", {
              name: name,
              etag: result.res.headers.etag,
              res: result.res
            });

          case 18:
          case "end":
            return _context7.stop();
        }
      }
    }, _callee7, this);
  }));

  function _uploadPart(_x23, _x24, _x25, _x26, _x27) {
    return _uploadPart3.apply(this, arguments);
  }

  return _uploadPart;
}();

}).call(this,require('_process'))
},{"./callback":23,"./utils/deepCopy":54,"./utils/isBuffer":61,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"_process":392,"copy-to":101,"core-js/modules/es.array.concat":234,"core-js/modules/es.array.filter":236,"core-js/modules/es.array.map":245,"core-js/modules/es.array.sort":247,"core-js/modules/es.object.to-string":254,"core-js/modules/es.regexp.to-string":257,"regenerator-runtime/runtime":336}],29:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.array.concat");

require("core-js/modules/es.array.find");

require("core-js/modules/es.array.for-each");

require("core-js/modules/es.array.includes");

require("core-js/modules/es.object.keys");

require("core-js/modules/es.regexp.exec");

require("core-js/modules/es.string.replace");

require("core-js/modules/web.dom-collections.for-each");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

var _typeof2 = _interopRequireDefault(require("@babel/runtime/helpers/typeof"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var _require = require('../utils/checkBucketName'),
    _checkBucketName = _require.checkBucketName;

var proto = exports;
var REPLACE_HEDERS = ['content-type', 'content-encoding', 'content-language', 'content-disposition', 'cache-control', 'expires'];

proto.copy = /*#__PURE__*/function () {
  var _copy = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name, sourceName, bucketName, options) {
    var params, result, data;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            if ((0, _typeof2.default)(bucketName) === 'object') {
              options = bucketName; // 兼容旧版本，旧版本第三个参数为options
            }

            options = options || {};
            options.headers = options.headers || {};
            Object.keys(options.headers).forEach(function (key) {
              options.headers["x-oss-copy-source-".concat(key.toLowerCase())] = options.headers[key];
            });

            if (options.meta || Object.keys(options.headers).find(function (_) {
              return REPLACE_HEDERS.includes(_.toLowerCase());
            })) {
              options.headers['x-oss-metadata-directive'] = 'REPLACE';
            }

            this._convertMetaToHeaders(options.meta, options.headers);

            sourceName = this._getSourceName(sourceName, bucketName);

            if (options.versionId) {
              sourceName = "".concat(sourceName, "?versionId=").concat(options.versionId);
            }

            options.headers['x-oss-copy-source'] = sourceName;
            params = this._objectRequestParams('PUT', name, options);
            params.xmlResponse = true;
            params.successStatuses = [200, 304];
            _context.next = 14;
            return this.request(params);

          case 14:
            result = _context.sent;
            data = result.data;

            if (data) {
              data = {
                etag: data.ETag,
                lastModified: data.LastModified
              };
            }

            return _context.abrupt("return", {
              data: data,
              res: result.res
            });

          case 18:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function copy(_x, _x2, _x3, _x4) {
    return _copy.apply(this, arguments);
  }

  return copy;
}(); // todo delete


proto._getSourceName = function _getSourceName(sourceName, bucketName) {
  if (typeof bucketName === 'string') {
    sourceName = this._objectName(sourceName);
  } else if (sourceName[0] !== '/') {
    bucketName = this.options.bucket;
  } else {
    bucketName = sourceName.replace(/\/(.+?)(\/.*)/, '$1');
    sourceName = sourceName.replace(/(\/.+?\/)(.*)/, '$2');
  }

  _checkBucketName(bucketName);

  sourceName = encodeURIComponent(sourceName);
  sourceName = "/".concat(bucketName, "/").concat(sourceName);
  return sourceName;
};

},{"../utils/checkBucketName":48,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/helpers/typeof":73,"@babel/runtime/regenerator":75,"core-js/modules/es.array.concat":234,"core-js/modules/es.array.find":237,"core-js/modules/es.array.for-each":238,"core-js/modules/es.array.includes":240,"core-js/modules/es.object.keys":253,"core-js/modules/es.regexp.exec":256,"core-js/modules/es.string.replace":261,"core-js/modules/web.dom-collections.for-each":291,"regenerator-runtime/runtime":336}],30:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.object.assign");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var proto = exports;
/**
 * delete
 * @param {String} name - object name
 * @param {Object} options
 * @param {{res}}
 */

proto.delete = /*#__PURE__*/function () {
  var _delete2 = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name) {
    var options,
        params,
        result,
        _args = arguments;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = _args.length > 1 && _args[1] !== undefined ? _args[1] : {};
            options.subres = Object.assign({}, options.subres);

            if (options.versionId) {
              options.subres.versionId = options.versionId;
            }

            params = this._objectRequestParams('DELETE', name, options);
            params.successStatuses = [204];
            _context.next = 7;
            return this.request(params);

          case 7:
            result = _context.sent;
            return _context.abrupt("return", {
              res: result.res
            });

          case 9:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function _delete(_x) {
    return _delete2.apply(this, arguments);
  }

  return _delete;
}();

},{"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.object.assign":251,"regenerator-runtime/runtime":336}],31:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.object.assign");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

/* eslint-disable object-curly-newline */
var utility = require('utility');

var _require = require('../utils/obj2xml'),
    obj2xml = _require.obj2xml;

var proto = exports;

proto.deleteMulti = /*#__PURE__*/function () {
  var _deleteMulti = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(names) {
    var options,
        objects,
        i,
        object,
        _names$i,
        key,
        versionId,
        paramXMLObj,
        paramXML,
        params,
        result,
        r,
        deleted,
        _args = arguments;

    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = _args.length > 1 && _args[1] !== undefined ? _args[1] : {};
            objects = [];

            if (!(!names || !names.length)) {
              _context.next = 4;
              break;
            }

            throw new Error('names is required');

          case 4:
            for (i = 0; i < names.length; i++) {
              object = {};

              if (typeof names[i] === 'string') {
                object.Key = utility.escape(this._objectName(names[i]));
              } else {
                _names$i = names[i], key = _names$i.key, versionId = _names$i.versionId;
                object.Key = utility.escape(this._objectName(key));
                object.VersionId = versionId;
              }

              objects.push(object);
            }

            paramXMLObj = {
              Delete: {
                Quiet: !!options.quiet,
                Object: objects
              }
            };
            paramXML = obj2xml(paramXMLObj, {
              headers: true
            });
            options.subres = Object.assign({
              delete: ''
            }, options.subres);

            if (options.versionId) {
              options.subres.versionId = options.versionId;
            }

            params = this._objectRequestParams('POST', '', options);
            params.mime = 'xml';
            params.content = paramXML;
            params.xmlResponse = true;
            params.successStatuses = [200];
            _context.next = 16;
            return this.request(params);

          case 16:
            result = _context.sent;
            r = result.data;
            deleted = r && r.Deleted || null;

            if (deleted) {
              if (!Array.isArray(deleted)) {
                deleted = [deleted];
              }
            }

            return _context.abrupt("return", {
              res: result.res,
              deleted: deleted || []
            });

          case 21:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function deleteMulti(_x) {
    return _deleteMulti.apply(this, arguments);
  }

  return deleteMulti;
}();

},{"../utils/obj2xml":67,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.object.assign":251,"regenerator-runtime/runtime":336,"utility":395}],32:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.object.assign");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var proto = exports;
/**
 * deleteObjectTagging
 * @param {String} name - object name
 * @param {Object} options
 */

proto.deleteObjectTagging = /*#__PURE__*/function () {
  var _deleteObjectTagging = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name) {
    var options,
        params,
        result,
        _args = arguments;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = _args.length > 1 && _args[1] !== undefined ? _args[1] : {};
            options.subres = Object.assign({
              tagging: ''
            }, options.subres);

            if (options.versionId) {
              options.subres.versionId = options.versionId;
            }

            name = this._objectName(name);
            params = this._objectRequestParams('DELETE', name, options);
            params.successStatuses = [204];
            _context.next = 8;
            return this.request(params);

          case 8:
            result = _context.sent;
            return _context.abrupt("return", {
              status: result.status,
              res: result.res
            });

          case 10:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function deleteObjectTagging(_x) {
    return _deleteObjectTagging.apply(this, arguments);
  }

  return deleteObjectTagging;
}();

},{"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.object.assign":251,"regenerator-runtime/runtime":336}],33:[function(require,module,exports){
"use strict";

require("core-js/modules/es.array.concat");

var urlutil = require('url');

var _require = require('../utils/isIP'),
    isIP = _require.isIP;

var proto = exports;
/**
 * Get Object url by name
 * @param {String} name - object name
 * @param {String} [baseUrl] - If provide `baseUrl`, will use `baseUrl` instead the default `endpoint and bucket`.
 * @return {String} object url include bucket
 */

proto.generateObjectUrl = function generateObjectUrl(name, baseUrl) {
  if (isIP(this.options.endpoint.hostname)) {
    throw new Error('can not get the object URL when endpoint is IP');
  }

  if (!baseUrl) {
    baseUrl = this.options.endpoint.format();
    var copyUrl = urlutil.parse(baseUrl);
    var bucket = this.options.bucket;
    copyUrl.hostname = "".concat(bucket, ".").concat(copyUrl.hostname);
    copyUrl.host = "".concat(bucket, ".").concat(copyUrl.host);
    baseUrl = copyUrl.format();
  } else if (baseUrl[baseUrl.length - 1] !== '/') {
    baseUrl += '/';
  }

  return baseUrl + this._escape(this._objectName(name));
};

},{"../utils/isIP":64,"core-js/modules/es.array.concat":234,"url":393}],34:[function(require,module,exports){
(function (process){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.object.assign");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var fs = require('fs');

var is = require('is-type-of');

var proto = exports;
/**
 * get
 * @param {String} name - object name
 * @param {String | Stream} file
 * @param {Object} options
 * @param {{res}}
 */

proto.get = /*#__PURE__*/function () {
  var _get = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name, file) {
    var options,
        writeStream,
        needDestroy,
        isBrowserEnv,
        responseCacheControl,
        defaultSubresOptions,
        result,
        params,
        _args = arguments;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = _args.length > 2 && _args[2] !== undefined ? _args[2] : {};
            writeStream = null;
            needDestroy = false;

            if (is.writableStream(file)) {
              writeStream = file;
            } else if (is.string(file)) {
              writeStream = fs.createWriteStream(file);
              needDestroy = true;
            } else {
              // get(name, options)
              options = file;
            }

            options = options || {};
            isBrowserEnv = process && process.browser;
            responseCacheControl = options.responseCacheControl === null ? '' : 'no-cache';
            defaultSubresOptions = isBrowserEnv && responseCacheControl ? {
              'response-cache-control': responseCacheControl
            } : {};
            options.subres = Object.assign(defaultSubresOptions, options.subres);

            if (options.versionId) {
              options.subres.versionId = options.versionId;
            }

            if (options.process) {
              options.subres['x-oss-process'] = options.process;
            }

            _context.prev = 11;
            params = this._objectRequestParams('GET', name, options);
            params.writeStream = writeStream;
            params.successStatuses = [200, 206, 304];
            _context.next = 17;
            return this.request(params);

          case 17:
            result = _context.sent;

            if (needDestroy) {
              writeStream.destroy();
            }

            _context.next = 28;
            break;

          case 21:
            _context.prev = 21;
            _context.t0 = _context["catch"](11);

            if (!needDestroy) {
              _context.next = 27;
              break;
            }

            writeStream.destroy(); // should delete the exists file before throw error

            _context.next = 27;
            return this._deleteFileSafe(file);

          case 27:
            throw _context.t0;

          case 28:
            return _context.abrupt("return", {
              res: result.res,
              content: result.data
            });

          case 29:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this, [[11, 21]]);
  }));

  function get(_x, _x2) {
    return _get.apply(this, arguments);
  }

  return get;
}();

}).call(this,require('_process'))
},{"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"_process":392,"core-js/modules/es.object.assign":251,"fs":79,"is-type-of":391,"regenerator-runtime/runtime":336}],35:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.object.assign");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var proto = exports;
/*
 * Get object's ACL
 * @param {String} name the object key
 * @param {Object} options
 * @return {Object}
 */

proto.getACL = /*#__PURE__*/function () {
  var _getACL = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name) {
    var options,
        params,
        result,
        _args = arguments;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = _args.length > 1 && _args[1] !== undefined ? _args[1] : {};
            options.subres = Object.assign({
              acl: ''
            }, options.subres);

            if (options.versionId) {
              options.subres.versionId = options.versionId;
            }

            name = this._objectName(name);
            params = this._objectRequestParams('GET', name, options);
            params.successStatuses = [200];
            params.xmlResponse = true;
            _context.next = 9;
            return this.request(params);

          case 9:
            result = _context.sent;
            return _context.abrupt("return", {
              acl: result.data.AccessControlList.Grant,
              owner: {
                id: result.data.Owner.ID,
                displayName: result.data.Owner.DisplayName
              },
              res: result.res
            });

          case 11:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function getACL(_x) {
    return _getACL.apply(this, arguments);
  }

  return getACL;
}();

},{"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.object.assign":251,"regenerator-runtime/runtime":336}],36:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.array.for-each");

require("core-js/modules/es.array.map");

require("core-js/modules/es.number.constructor");

require("core-js/modules/es.object.assign");

require("core-js/modules/es.object.keys");

require("core-js/modules/es.regexp.exec");

require("core-js/modules/es.string.replace");

require("core-js/modules/web.dom-collections.for-each");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

/* eslint-disable no-use-before-define */
var proto = exports;

var _require = require('../utils/isObject'),
    isObject = _require.isObject;

var _require2 = require('../utils/isArray'),
    isArray = _require2.isArray;

proto.getBucketVersions = getBucketVersions;
proto.listObjectVersions = getBucketVersions;

function getBucketVersions() {
  return _getBucketVersions.apply(this, arguments);
}

function _getBucketVersions() {
  _getBucketVersions = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee() {
    var query,
        options,
        params,
        result,
        objects,
        deleteMarker,
        that,
        prefixes,
        _args = arguments;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            query = _args.length > 0 && _args[0] !== undefined ? _args[0] : {};
            options = _args.length > 1 && _args[1] !== undefined ? _args[1] : {};

            if (!(query.versionIdMarker && query.keyMarker === undefined)) {
              _context.next = 4;
              break;
            }

            throw new Error('A version-id marker cannot be specified without a key marker');

          case 4:
            options.subres = Object.assign({
              versions: ''
            }, options.subres);

            if (options.versionId) {
              options.subres.versionId = options.versionId;
            }

            params = this._objectRequestParams('GET', '', options);
            params.xmlResponse = true;
            params.successStatuses = [200];
            params.query = formatQuery(query);
            _context.next = 12;
            return this.request(params);

          case 12:
            result = _context.sent;
            objects = result.data.Version || [];
            deleteMarker = result.data.DeleteMarker || [];
            that = this;

            if (objects) {
              if (!Array.isArray(objects)) {
                objects = [objects];
              }

              objects = objects.map(function (obj) {
                return {
                  name: obj.Key,
                  url: that._objectUrl(obj.Key),
                  lastModified: obj.LastModified,
                  isLatest: obj.IsLatest === 'true',
                  versionId: obj.VersionId,
                  etag: obj.ETag,
                  type: obj.Type,
                  size: Number(obj.Size),
                  storageClass: obj.StorageClass,
                  owner: {
                    id: obj.Owner.ID,
                    displayName: obj.Owner.DisplayName
                  }
                };
              });
            }

            if (deleteMarker) {
              if (!isArray(deleteMarker)) {
                deleteMarker = [deleteMarker];
              }

              deleteMarker = deleteMarker.map(function (obj) {
                return {
                  name: obj.Key,
                  lastModified: obj.LastModified,
                  versionId: obj.VersionId,
                  owner: {
                    id: obj.Owner.ID,
                    displayName: obj.Owner.DisplayName
                  }
                };
              });
            }

            prefixes = result.data.CommonPrefixes || null;

            if (prefixes) {
              if (!isArray(prefixes)) {
                prefixes = [prefixes];
              }

              prefixes = prefixes.map(function (item) {
                return item.Prefix;
              });
            }

            return _context.abrupt("return", {
              res: result.res,
              objects: objects,
              deleteMarker: deleteMarker,
              prefixes: prefixes,
              // attirbute of legacy error
              nextMarker: result.data.NextKeyMarker || null,
              // attirbute of legacy error
              NextVersionIdMarker: result.data.NextVersionIdMarker || null,
              nextKeyMarker: result.data.NextKeyMarker || null,
              nextVersionIdMarker: result.data.NextVersionIdMarker || null,
              isTruncated: result.data.IsTruncated === 'true'
            });

          case 21:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));
  return _getBucketVersions.apply(this, arguments);
}

function camel2Line(name) {
  return name.replace(/([A-Z])/g, '-$1').toLowerCase();
}

function formatQuery() {
  var query = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
  var obj = {};

  if (isObject(query)) {
    Object.keys(query).forEach(function (key) {
      obj[camel2Line(key)] = query[key];
    });
  }

  return obj;
}

},{"../utils/isArray":59,"../utils/isObject":65,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.array.for-each":238,"core-js/modules/es.array.map":245,"core-js/modules/es.number.constructor":250,"core-js/modules/es.object.assign":251,"core-js/modules/es.object.keys":253,"core-js/modules/es.regexp.exec":256,"core-js/modules/es.string.replace":261,"core-js/modules/web.dom-collections.for-each":291,"regenerator-runtime/runtime":336}],37:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.object.assign");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var proto = exports;
/**
 * getObjectMeta
 * @param {String} name - object name
 * @param {Object} options
 * @param {{res}}
 */

proto.getObjectMeta = /*#__PURE__*/function () {
  var _getObjectMeta = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name, options) {
    var params, result;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = options || {};
            name = this._objectName(name);
            options.subres = Object.assign({
              objectMeta: ''
            }, options.subres);

            if (options.versionId) {
              options.subres.versionId = options.versionId;
            }

            params = this._objectRequestParams('HEAD', name, options);
            params.successStatuses = [200];
            _context.next = 8;
            return this.request(params);

          case 8:
            result = _context.sent;
            return _context.abrupt("return", {
              status: result.status,
              res: result.res
            });

          case 10:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function getObjectMeta(_x, _x2) {
    return _getObjectMeta.apply(this, arguments);
  }

  return getObjectMeta;
}();

},{"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.object.assign":251,"regenerator-runtime/runtime":336}],38:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.array.for-each");

require("core-js/modules/es.object.assign");

require("core-js/modules/web.dom-collections.for-each");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var proto = exports;

var _require = require('../utils/isObject'),
    isObject = _require.isObject;
/**
 * getObjectTagging
 * @param {String} name - object name
 * @param {Object} options
 * @return {Object}
 */


proto.getObjectTagging = /*#__PURE__*/function () {
  var _getObjectTagging = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name) {
    var options,
        params,
        result,
        Tagging,
        Tag,
        tag,
        _args = arguments;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = _args.length > 1 && _args[1] !== undefined ? _args[1] : {};
            options.subres = Object.assign({
              tagging: ''
            }, options.subres);

            if (options.versionId) {
              options.subres.versionId = options.versionId;
            }

            name = this._objectName(name);
            params = this._objectRequestParams('GET', name, options);
            params.successStatuses = [200];
            _context.next = 8;
            return this.request(params);

          case 8:
            result = _context.sent;
            _context.next = 11;
            return this.parseXML(result.data);

          case 11:
            Tagging = _context.sent;
            Tag = Tagging.TagSet.Tag;
            Tag = Tag && isObject(Tag) ? [Tag] : Tag || [];
            tag = {};
            Tag.forEach(function (item) {
              tag[item.Key] = item.Value;
            });
            return _context.abrupt("return", {
              status: result.status,
              res: result.res,
              tag: tag
            });

          case 17:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function getObjectTagging(_x) {
    return _getObjectTagging.apply(this, arguments);
  }

  return getObjectTagging;
}();

},{"../utils/isObject":65,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.array.for-each":238,"core-js/modules/es.object.assign":251,"core-js/modules/web.dom-collections.for-each":291,"regenerator-runtime/runtime":336}],39:[function(require,module,exports){
"use strict";

var _require = require('../utils/isIP'),
    isIP = _require.isIP;

var proto = exports;
/**
 * Get Object url by name
 * @param {String} name - object name
 * @param {String} [baseUrl] - If provide `baseUrl`,
 *        will use `baseUrl` instead the default `endpoint`.
 * @return {String} object url
 */

proto.getObjectUrl = function getObjectUrl(name, baseUrl) {
  if (isIP(this.options.endpoint.hostname)) {
    throw new Error('can not get the object URL when endpoint is IP');
  }

  if (!baseUrl) {
    baseUrl = this.options.endpoint.format();
  } else if (baseUrl[baseUrl.length - 1] !== '/') {
    baseUrl += '/';
  }

  return baseUrl + this._escape(this._objectName(name));
};

},{"../utils/isIP":64}],40:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.object.assign");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var proto = exports;
/**
 * getSymlink
 * @param {String} name - object name
 * @param {Object} options
 * @param {{res}}
 */

proto.getSymlink = /*#__PURE__*/function () {
  var _getSymlink = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name) {
    var options,
        params,
        result,
        target,
        _args = arguments;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = _args.length > 1 && _args[1] !== undefined ? _args[1] : {};
            options.subres = Object.assign({
              symlink: ''
            }, options.subres);

            if (options.versionId) {
              options.subres.versionId = options.versionId;
            }

            name = this._objectName(name);
            params = this._objectRequestParams('GET', name, options);
            params.successStatuses = [200];
            _context.next = 8;
            return this.request(params);

          case 8:
            result = _context.sent;
            target = result.res.headers['x-oss-symlink-target'];
            return _context.abrupt("return", {
              targetName: decodeURIComponent(target),
              res: result.res
            });

          case 11:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function getSymlink(_x) {
    return _getSymlink.apply(this, arguments);
  }

  return getSymlink;
}();

},{"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.object.assign":251,"regenerator-runtime/runtime":336}],41:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.array.for-each");

require("core-js/modules/es.array.index-of");

require("core-js/modules/es.object.assign");

require("core-js/modules/es.object.keys");

require("core-js/modules/web.dom-collections.for-each");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var proto = exports;
/**
 * head
 * @param {String} name - object name
 * @param {Object} options
 * @param {{res}}
 */

proto.head = /*#__PURE__*/function () {
  var _head = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name) {
    var options,
        params,
        result,
        data,
        _args = arguments;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = _args.length > 1 && _args[1] !== undefined ? _args[1] : {};
            options.subres = Object.assign({}, options.subres);

            if (options.versionId) {
              options.subres.versionId = options.versionId;
            }

            params = this._objectRequestParams('HEAD', name, options);
            params.successStatuses = [200, 304];
            _context.next = 7;
            return this.request(params);

          case 7:
            result = _context.sent;
            data = {
              meta: null,
              res: result.res,
              status: result.status
            };

            if (result.status === 200) {
              Object.keys(result.headers).forEach(function (k) {
                if (k.indexOf('x-oss-meta-') === 0) {
                  if (!data.meta) {
                    data.meta = {};
                  }

                  data.meta[k.substring(11)] = result.headers[k];
                }
              });
            }

            return _context.abrupt("return", data);

          case 11:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function head(_x) {
    return _head.apply(this, arguments);
  }

  return head;
}();

},{"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.array.for-each":238,"core-js/modules/es.array.index-of":241,"core-js/modules/es.object.assign":251,"core-js/modules/es.object.keys":253,"core-js/modules/web.dom-collections.for-each":291,"regenerator-runtime/runtime":336}],42:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.object.assign");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var proto = exports;
/*
 * Set object's ACL
 * @param {String} name the object key
 * @param {String} acl the object ACL
 * @param {Object} options
 */

proto.putACL = /*#__PURE__*/function () {
  var _putACL = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name, acl, options) {
    var params, result;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = options || {};
            options.subres = Object.assign({
              acl: ''
            }, options.subres);

            if (options.versionId) {
              options.subres.versionId = options.versionId;
            }

            options.headers = options.headers || {};
            options.headers['x-oss-object-acl'] = acl;
            name = this._objectName(name);
            params = this._objectRequestParams('PUT', name, options);
            params.successStatuses = [200];
            _context.next = 10;
            return this.request(params);

          case 10:
            result = _context.sent;
            return _context.abrupt("return", {
              res: result.res
            });

          case 12:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function putACL(_x, _x2, _x3) {
    return _putACL.apply(this, arguments);
  }

  return putACL;
}();

},{"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.object.assign":251,"regenerator-runtime/runtime":336}],43:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.array.map");

require("core-js/modules/es.object.assign");

require("core-js/modules/es.object.keys");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var _require = require('../utils/obj2xml'),
    obj2xml = _require.obj2xml;

var _require2 = require('../utils/checkObjectTag'),
    checkObjectTag = _require2.checkObjectTag;

var proto = exports;
/**
 * putObjectTagging
 * @param {String} name - object name
 * @param {Object} tag -  object tag, eg: `{a: "1", b: "2"}`
 * @param {Object} options
 */

proto.putObjectTagging = /*#__PURE__*/function () {
  var _putObjectTagging = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name, tag) {
    var options,
        params,
        paramXMLObj,
        result,
        _args = arguments;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = _args.length > 2 && _args[2] !== undefined ? _args[2] : {};
            checkObjectTag(tag);
            options.subres = Object.assign({
              tagging: ''
            }, options.subres);

            if (options.versionId) {
              options.subres.versionId = options.versionId;
            }

            name = this._objectName(name);
            params = this._objectRequestParams('PUT', name, options);
            params.successStatuses = [200];
            tag = Object.keys(tag).map(function (key) {
              return {
                Key: key,
                Value: tag[key]
              };
            });
            paramXMLObj = {
              Tagging: {
                TagSet: {
                  Tag: tag
                }
              }
            };
            params.mime = 'xml';
            params.content = obj2xml(paramXMLObj);
            _context.next = 13;
            return this.request(params);

          case 13:
            result = _context.sent;
            return _context.abrupt("return", {
              res: result.res,
              status: result.status
            });

          case 15:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function putObjectTagging(_x, _x2) {
    return _putObjectTagging.apply(this, arguments);
  }

  return putObjectTagging;
}();

},{"../utils/checkObjectTag":50,"../utils/obj2xml":67,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.array.map":245,"core-js/modules/es.object.assign":251,"core-js/modules/es.object.keys":253,"regenerator-runtime/runtime":336}],44:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.object.assign");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var proto = exports;
/**
 * putSymlink
 * @param {String} name - object name
 * @param {String} targetName - target name
 * @param {Object} options
 * @param {{res}}
 */

proto.putSymlink = /*#__PURE__*/function () {
  var _putSymlink = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(name, targetName, options) {
    var params, result;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            options = options || {};
            options.headers = options.headers || {};
            targetName = this._escape(this._objectName(targetName));

            this._convertMetaToHeaders(options.meta, options.headers);

            options.headers['x-oss-symlink-target'] = targetName;
            options.subres = Object.assign({
              symlink: ''
            }, options.subres);

            if (options.versionId) {
              options.subres.versionId = options.versionId;
            }

            if (options.storageClass) {
              options.headers['x-oss-storage-class'] = options.storageClass;
            }

            name = this._objectName(name);
            params = this._objectRequestParams('PUT', name, options);
            params.successStatuses = [200];
            _context.next = 13;
            return this.request(params);

          case 13:
            result = _context.sent;
            return _context.abrupt("return", {
              res: result.res
            });

          case 15:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  function putSymlink(_x, _x2, _x3) {
    return _putSymlink.apply(this, arguments);
  }

  return putSymlink;
}();

},{"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.object.assign":251,"regenerator-runtime/runtime":336}],45:[function(require,module,exports){
"use strict";

var urlutil = require('url');

var utility = require('utility');

var copy = require('copy-to');

var signHelper = require('../../common/signUtils');

var _require = require('../utils/isIP'),
    isIP = _require.isIP;

var proto = exports;

proto.signatureUrl = function signatureUrl(name, options) {
  if (isIP(this.options.endpoint.hostname)) {
    throw new Error('can not get the object URL when endpoint is IP');
  }

  options = options || {};
  name = this._objectName(name);
  options.method = options.method || 'GET';
  var expires = utility.timestamp() + (options.expires || 1800);
  var params = {
    bucket: this.options.bucket,
    object: name
  };

  var resource = this._getResource(params);

  if (this.options.stsToken) {
    options['security-token'] = this.options.stsToken;
  }

  var signRes = signHelper._signatureForURL(this.options.accessKeySecret, options, resource, expires);

  var url = urlutil.parse(this._getReqUrl(params));
  url.query = {
    OSSAccessKeyId: this.options.accessKeyId,
    Expires: expires,
    Signature: signRes.Signature
  };
  copy(signRes.subResource).to(url.query);
  return url.format();
};

},{"../../common/signUtils":47,"../utils/isIP":64,"copy-to":101,"url":393,"utility":395}],46:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.array.for-each");

require("core-js/modules/es.array.iterator");

require("core-js/modules/es.function.name");

require("core-js/modules/es.object.to-string");

require("core-js/modules/es.promise");

require("core-js/modules/es.string.iterator");

require("core-js/modules/web.dom-collections.for-each");

require("core-js/modules/web.dom-collections.iterator");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var _require = require('./utils/isArray'),
    isArray = _require.isArray;

var proto = exports;

proto._parallelNode = /*#__PURE__*/function () {
  var _parallelNode2 = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(todo, parallel, fn, sourceData) {
    var that, jobErr, jobs, tempBatch, remainder, batch, taskIndex, i;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            that = this; // upload in parallel

            jobErr = [];
            jobs = [];
            tempBatch = todo.length / parallel;
            remainder = todo.length % parallel;
            batch = remainder === 0 ? tempBatch : (todo.length - remainder) / parallel + 1;
            taskIndex = 1;
            i = 0;

          case 8:
            if (!(i < todo.length)) {
              _context.next = 26;
              break;
            }

            if (!that.isCancel()) {
              _context.next = 11;
              break;
            }

            return _context.abrupt("break", 26);

          case 11:
            if (sourceData) {
              jobs.push(fn(that, todo[i], sourceData));
            } else {
              jobs.push(fn(that, todo[i]));
            }

            if (!(jobs.length === parallel || taskIndex === batch && i === todo.length - 1)) {
              _context.next = 23;
              break;
            }

            _context.prev = 13;
            taskIndex += 1;
            /* eslint no-await-in-loop: [0] */

            _context.next = 17;
            return Promise.all(jobs);

          case 17:
            _context.next = 22;
            break;

          case 19:
            _context.prev = 19;
            _context.t0 = _context["catch"](13);
            jobErr.push(_context.t0);

          case 22:
            jobs = [];

          case 23:
            i++;
            _context.next = 8;
            break;

          case 26:
            return _context.abrupt("return", jobErr);

          case 27:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this, [[13, 19]]);
  }));

  function _parallelNode(_x, _x2, _x3, _x4) {
    return _parallelNode2.apply(this, arguments);
  }

  return _parallelNode;
}();

proto._parallel = function _parallel(todo, parallel, jobPromise) {
  var that = this;
  return new Promise(function (resolve) {
    var _jobErr = [];

    if (parallel <= 0 || !todo) {
      resolve(_jobErr);
      return;
    }

    function onlyOnce(fn) {
      return function () {
        if (fn === null) throw new Error('Callback was already called.');
        var callFn = fn;
        fn = null;

        for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
          args[_key] = arguments[_key];
        }

        callFn.apply(this, args);
      };
    }

    function createArrayIterator(coll) {
      var i = -1;
      var len = coll.length;
      return function next() {
        return ++i < len && !that.isCancel() ? {
          value: coll[i],
          key: i
        } : null;
      };
    }

    var nextElem = createArrayIterator(todo);
    var done = false;
    var running = 0;
    var looping = false;

    function iterateeCallback(err, value) {
      running -= 1;

      if (err) {
        done = true;

        _jobErr.push(err);

        resolve(_jobErr);
      } else if (value === {} || done && running <= 0) {
        done = true;
        resolve(_jobErr);
      } else if (!looping) {
        /* eslint no-use-before-define: [0] */
        if (that.isCancel()) {
          resolve(_jobErr);
        } else {
          replenish();
        }
      }
    }

    function iteratee(value, callback) {
      jobPromise(value).then(function (result) {
        callback(null, result);
      }).catch(function (err) {
        callback(err);
      });
    }

    function replenish() {
      looping = true;

      while (running < parallel && !done && !that.isCancel()) {
        var elem = nextElem();

        if (elem === null || _jobErr.length > 0) {
          done = true;

          if (running <= 0) {
            resolve(_jobErr);
          }

          return;
        }

        running += 1;
        iteratee(elem.value, onlyOnce(iterateeCallback));
      }

      looping = false;
    }

    replenish();
  });
};
/**
 * cancel operation, now can use with multipartUpload
 * @param {Object} abort
 *        {String} anort.name object key
 *        {String} anort.uploadId upload id
 *        {String} anort.options timeout
 */


proto.cancel = function cancel(abort) {
  this.options.cancelFlag = true;

  if (isArray(this.multipartUploadStreams)) {
    this.multipartUploadStreams.forEach(function (_) {
      if (_.destroyed === false) {
        var err = {
          name: 'cancel',
          message: 'cancel'
        };

        _.destroy(err);
      }
    });
  }

  this.multipartUploadStreams = [];

  if (abort) {
    this.abortMultipartUpload(abort.name, abort.uploadId, abort.options);
  }
};

proto.isCancel = function isCancel() {
  return this.options.cancelFlag;
};

proto.resetCancelFlag = function resetCancelFlag() {
  this.options.cancelFlag = false;
};

proto._stop = function _stop() {
  this.options.cancelFlag = true;
}; // cancel is not error , so create an object


proto._makeCancelEvent = function _makeCancelEvent() {
  var cancelEvent = {
    status: 0,
    name: 'cancel'
  };
  return cancelEvent;
}; // abort is not error , so create an object


proto._makeAbortEvent = function _makeAbortEvent() {
  var abortEvent = {
    status: 0,
    name: 'abort',
    message: 'upload task has been abort'
  };
  return abortEvent;
};

},{"./utils/isArray":59,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.array.for-each":238,"core-js/modules/es.array.iterator":242,"core-js/modules/es.function.name":249,"core-js/modules/es.object.to-string":254,"core-js/modules/es.promise":255,"core-js/modules/es.string.iterator":259,"core-js/modules/web.dom-collections.for-each":291,"core-js/modules/web.dom-collections.iterator":292,"regenerator-runtime/runtime":336}],47:[function(require,module,exports){
(function (Buffer){
"use strict";

require("core-js/modules/es.array.concat");

require("core-js/modules/es.array.for-each");

require("core-js/modules/es.array.index-of");

require("core-js/modules/es.array.join");

require("core-js/modules/es.array.sort");

require("core-js/modules/es.object.keys");

require("core-js/modules/es.object.to-string");

require("core-js/modules/es.regexp.to-string");

require("core-js/modules/es.string.trim");

require("core-js/modules/web.dom-collections.for-each");

var crypto = require('./../../shims/crypto/crypto.js');

var is = require('is-type-of');

var _require = require('./utils/lowercaseKeyHeader'),
    lowercaseKeyHeader = _require.lowercaseKeyHeader;
/**
 *
 * @param {String} resourcePath
 * @param {Object} parameters
 * @return
 */


exports.buildCanonicalizedResource = function buildCanonicalizedResource(resourcePath, parameters) {
  var canonicalizedResource = "".concat(resourcePath);
  var separatorString = '?';

  if (is.string(parameters) && parameters.trim() !== '') {
    canonicalizedResource += separatorString + parameters;
  } else if (is.array(parameters)) {
    parameters.sort();
    canonicalizedResource += separatorString + parameters.join('&');
  } else if (parameters) {
    var compareFunc = function compareFunc(entry1, entry2) {
      if (entry1[0] > entry2[0]) {
        return 1;
      } else if (entry1[0] < entry2[0]) {
        return -1;
      }

      return 0;
    };

    var processFunc = function processFunc(key) {
      canonicalizedResource += separatorString + key;

      if (parameters[key]) {
        canonicalizedResource += "=".concat(parameters[key]);
      }

      separatorString = '&';
    };

    Object.keys(parameters).sort(compareFunc).forEach(processFunc);
  }

  return canonicalizedResource;
};
/**
 * @param {String} method
 * @param {String} resourcePath
 * @param {Object} request
 * @param {String} expires
 * @return {String} canonicalString
 */


exports.buildCanonicalString = function canonicalString(method, resourcePath, request, expires) {
  request = request || {};
  var headers = lowercaseKeyHeader(request.headers);
  var OSS_PREFIX = 'x-oss-';
  var ossHeaders = [];
  var headersToSign = {};
  var signContent = [method.toUpperCase(), headers['content-md5'] || '', headers['content-type'], expires || headers['x-oss-date']];
  Object.keys(headers).forEach(function (key) {
    var lowerKey = key.toLowerCase();

    if (lowerKey.indexOf(OSS_PREFIX) === 0) {
      headersToSign[lowerKey] = String(headers[key]).trim();
    }
  });
  Object.keys(headersToSign).sort().forEach(function (key) {
    ossHeaders.push("".concat(key, ":").concat(headersToSign[key]));
  });
  signContent = signContent.concat(ossHeaders);
  signContent.push(this.buildCanonicalizedResource(resourcePath, request.parameters));
  return signContent.join('\n');
};
/**
 * @param {String} accessKeySecret
 * @param {String} canonicalString
 */


exports.computeSignature = function computeSignature(accessKeySecret, canonicalString) {
  var headerEncoding = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 'utf-8';
  var signature = crypto.createHmac('sha1', accessKeySecret);
  return signature.update(Buffer.from(canonicalString, headerEncoding)).digest('base64');
};
/**
 * @param {String} accessKeyId
 * @param {String} accessKeySecret
 * @param {String} canonicalString
 */


exports.authorization = function authorization(accessKeyId, accessKeySecret, canonicalString, headerEncoding) {
  return "OSS ".concat(accessKeyId, ":").concat(this.computeSignature(accessKeySecret, canonicalString, headerEncoding));
};
/**
 *
 * @param {String} accessKeySecret
 * @param {Object} options
 * @param {String} resource
 * @param {Number} expires
 */


exports._signatureForURL = function _signatureForURL(accessKeySecret) {
  var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  var resource = arguments.length > 2 ? arguments[2] : undefined;
  var expires = arguments.length > 3 ? arguments[3] : undefined;
  var headerEncoding = arguments.length > 4 ? arguments[4] : undefined;
  var headers = {};
  var _options$subResource = options.subResource,
      subResource = _options$subResource === void 0 ? {} : _options$subResource;

  if (options.process) {
    var processKeyword = 'x-oss-process';
    subResource[processKeyword] = options.process;
  }

  if (options.trafficLimit) {
    var trafficLimitKey = 'x-oss-traffic-limit';
    subResource[trafficLimitKey] = options.trafficLimit;
  }

  if (options.response) {
    Object.keys(options.response).forEach(function (k) {
      var key = "response-".concat(k.toLowerCase());
      subResource[key] = options.response[k];
    });
  }

  Object.keys(options).forEach(function (key) {
    var lowerKey = key.toLowerCase();
    var value = options[key];

    if (lowerKey.indexOf('x-oss-') === 0) {
      headers[lowerKey] = value;
    } else if (lowerKey.indexOf('content-md5') === 0) {
      headers[key] = value;
    } else if (lowerKey.indexOf('content-type') === 0) {
      headers[key] = value;
    }
  });

  if (Object.prototype.hasOwnProperty.call(options, 'security-token')) {
    subResource['security-token'] = options['security-token'];
  }

  if (Object.prototype.hasOwnProperty.call(options, 'callback')) {
    var json = {
      callbackUrl: encodeURI(options.callback.url),
      callbackBody: options.callback.body
    };

    if (options.callback.host) {
      json.callbackHost = options.callback.host;
    }

    if (options.callback.contentType) {
      json.callbackBodyType = options.callback.contentType;
    }

    subResource.callback = Buffer.from(JSON.stringify(json)).toString('base64');

    if (options.callback.customValue) {
      var callbackVar = {};
      Object.keys(options.callback.customValue).forEach(function (key) {
        callbackVar["x:".concat(key)] = options.callback.customValue[key];
      });
      subResource['callback-var'] = Buffer.from(JSON.stringify(callbackVar)).toString('base64');
    }
  }

  var canonicalString = this.buildCanonicalString(options.method, resource, {
    headers: headers,
    parameters: subResource
  }, expires.toString());
  return {
    Signature: this.computeSignature(accessKeySecret, canonicalString, headerEncoding),
    subResource: subResource
  };
};

}).call(this,require("buffer").Buffer)
},{"./../../shims/crypto/crypto.js":386,"./utils/lowercaseKeyHeader":66,"buffer":99,"core-js/modules/es.array.concat":234,"core-js/modules/es.array.for-each":238,"core-js/modules/es.array.index-of":241,"core-js/modules/es.array.join":243,"core-js/modules/es.array.sort":247,"core-js/modules/es.object.keys":253,"core-js/modules/es.object.to-string":254,"core-js/modules/es.regexp.to-string":257,"core-js/modules/es.string.trim":264,"core-js/modules/web.dom-collections.for-each":291,"is-type-of":391}],48:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.checkBucketName = void 0;

exports.checkBucketName = function (name) {
  var createBucket = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
  var bucketRegex = createBucket ? /^[a-z0-9][a-z0-9-]{1,61}[a-z0-9]$/ : /^[a-z0-9_][a-z0-9-_]{1,61}[a-z0-9_]$/;

  if (!bucketRegex.test(name)) {
    throw new Error('The bucket must be conform to the specifications');
  }
};

},{}],49:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.checkConfigValid = void 0;
var checkConfigMap = {
  endpoint: checkEndpoint,
  region: /^[a-zA-Z0-9\-_]+$/
};

function checkEndpoint(endpoint) {
  if (typeof endpoint === 'string') {
    return /^[a-zA-Z0-9._:/-]+$/.test(endpoint);
  } else if (endpoint.host) {
    return /^[a-zA-Z0-9._:/-]+$/.test(endpoint.host);
  }

  return false;
}

exports.checkConfigValid = function (conf, key) {
  if (checkConfigMap[key]) {
    var isConfigValid = true;

    if (checkConfigMap[key] instanceof Function) {
      isConfigValid = checkConfigMap[key](conf);
    } else {
      isConfigValid = checkConfigMap[key].test(conf);
    }

    if (!isConfigValid) {
      throw new Error("The ".concat(key, " must be conform to the specifications"));
    }
  }
};

},{}],50:[function(require,module,exports){
"use strict";

require("core-js/modules/es.array.concat");

require("core-js/modules/es.array.for-each");

require("core-js/modules/es.object.entries");

require("core-js/modules/web.dom-collections.for-each");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.checkObjectTag = void 0;

var _require = require('./checkValid'),
    checkValid = _require.checkValid;

var _require2 = require('./isObject'),
    isObject = _require2.isObject;

var commonRules = [{
  validator: function validator(value) {
    if (typeof value !== 'string') {
      throw new Error('the key and value of the tag must be String');
    }
  }
}, {
  pattern: /^[a-zA-Z0-9 +-=._:/]+$/,
  msg: 'tag can contain letters, numbers, spaces, and the following symbols: plus sign (+), hyphen (-), equal sign (=), period (.), underscore (_), colon (:), and forward slash (/)'
}];
var rules = {
  key: [].concat(commonRules, [{
    pattern: /^.{1,128}$/,
    msg: 'tag key can be a maximum of 128 bytes in length'
  }]),
  value: [].concat(commonRules, [{
    pattern: /^.{0,256}$/,
    msg: 'tag value can be a maximum of 256 bytes in length'
  }])
};

function checkObjectTag(tag) {
  if (!isObject(tag)) {
    throw new Error('tag must be Object');
  }

  var entries = Object.entries(tag);

  if (entries.length > 10) {
    throw new Error('maximum of 10 tags for a object');
  }

  var rulesIndexKey = ['key', 'value'];
  entries.forEach(function (keyValue) {
    keyValue.forEach(function (item, index) {
      checkValid(item, rules[rulesIndexKey[index]]);
    });
  });
}

exports.checkObjectTag = checkObjectTag;

},{"./checkValid":51,"./isObject":65,"core-js/modules/es.array.concat":234,"core-js/modules/es.array.for-each":238,"core-js/modules/es.object.entries":252,"core-js/modules/web.dom-collections.for-each":291}],51:[function(require,module,exports){
"use strict";

require("core-js/modules/es.array.for-each");

require("core-js/modules/web.dom-collections.for-each");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.checkValid = void 0;

function checkValid(_value, _rules) {
  _rules.forEach(function (rule) {
    if (rule.validator) {
      rule.validator(_value);
    } else if (rule.pattern && !rule.pattern.test(_value)) {
      throw new Error(rule.msg);
    }
  });
}

exports.checkValid = checkValid;

},{"core-js/modules/es.array.for-each":238,"core-js/modules/web.dom-collections.for-each":291}],52:[function(require,module,exports){
(function (Buffer){
"use strict";

require("core-js/modules/es.array.concat");

require("core-js/modules/es.array.includes");

require("core-js/modules/es.array.index-of");

require("core-js/modules/es.object.assign");

require("core-js/modules/es.string.includes");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.createRequest = void 0;

var crypto = require('./../../../shims/crypto/crypto.js');

var debug = require('debug')('ali-oss');

var mime = require('mime');

var dateFormat = require('dateformat');

var copy = require('copy-to');

var path = require('path');

var _require = require('./encoder'),
    encoder = _require.encoder;

var _require2 = require('./isIP'),
    isIP = _require2.isIP;

var _require3 = require('./setRegion'),
    setRegion = _require3.setRegion;

var _require4 = require('../client/getReqUrl'),
    getReqUrl = _require4.getReqUrl;

function getHeader(headers, name) {
  return headers[name] || headers[name.toLowerCase()];
}

function delHeader(headers, name) {
  delete headers[name];
  delete headers[name.toLowerCase()];
}

function createRequest(params) {
  var date = new Date();

  if (this.options.amendTimeSkewed) {
    date = +new Date() + this.options.amendTimeSkewed;
  }

  var headers = {
    'x-oss-date': dateFormat(date, 'UTC:ddd, dd mmm yyyy HH:MM:ss \'GMT\''),
    'x-oss-user-agent': this.userAgent
  };

  if (this.userAgent.includes('nodejs')) {
    headers['User-Agent'] = this.userAgent;
  }

  if (this.options.isRequestPay) {
    Object.assign(headers, {
      'x-oss-request-payer': 'requester'
    });
  }

  if (this.options.stsToken) {
    headers['x-oss-security-token'] = this.options.stsToken;
  }

  copy(params.headers).to(headers);

  if (!getHeader(headers, 'Content-Type')) {
    if (params.mime && params.mime.indexOf('/') > 0) {
      headers['Content-Type'] = params.mime;
    } else {
      headers['Content-Type'] = mime.getType(params.mime || path.extname(params.object || ''));
    }
  }

  if (!getHeader(headers, 'Content-Type')) {
    delHeader(headers, 'Content-Type');
  }

  if (params.content) {
    if (!params.disabledMD5) {
      headers['Content-MD5'] = crypto.createHash('md5').update(Buffer.from(params.content, 'utf8')).digest('base64');
    }

    if (!headers['Content-Length']) {
      headers['Content-Length'] = params.content.length;
    }
  }

  var hasOwnProperty = Object.prototype.hasOwnProperty;

  for (var k in headers) {
    if (headers[k] && hasOwnProperty.call(headers, k)) {
      headers[k] = encoder(String(headers[k]), this.options.headerEncoding);
    }
  }

  var authResource = this._getResource(params);

  headers.authorization = this.authorization(params.method, authResource, params.subres, headers, this.options.headerEncoding); // const url = this._getReqUrl(params);

  if (isIP(this.options.endpoint.hostname)) {
    var _this$options = this.options,
        region = _this$options.region,
        internal = _this$options.internal,
        secure = _this$options.secure;
    var hostInfo = setRegion(region, internal, secure);
    headers.host = "".concat(params.bucket, ".").concat(hostInfo.host);
  }

  var url = getReqUrl.bind(this)(params);
  debug('request %s %s, with headers %j, !!stream: %s', params.method, url, headers, !!params.stream);
  var timeout = params.timeout || this.options.timeout;
  var reqParams = {
    method: params.method,
    content: params.content,
    stream: params.stream,
    headers: headers,
    timeout: timeout,
    writeStream: params.writeStream,
    customResponse: params.customResponse,
    ctx: params.ctx || this.ctx
  };

  if (this.agent) {
    reqParams.agent = this.agent;
  }

  if (this.httpsAgent) {
    reqParams.httpsAgent = this.httpsAgent;
  }

  reqParams.enableProxy = !!this.options.enableProxy;
  reqParams.proxy = this.options.proxy ? this.options.proxy : null;
  return {
    url: url,
    params: reqParams
  };
}

exports.createRequest = createRequest;

}).call(this,require("buffer").Buffer)
},{"../client/getReqUrl":24,"./../../../shims/crypto/crypto.js":386,"./encoder":55,"./isIP":64,"./setRegion":69,"buffer":99,"copy-to":101,"core-js/modules/es.array.concat":234,"core-js/modules/es.array.includes":240,"core-js/modules/es.array.index-of":241,"core-js/modules/es.object.assign":251,"core-js/modules/es.string.includes":258,"dateformat":294,"debug":390,"mime":312,"path":315}],53:[function(require,module,exports){
"use strict";

require("core-js/modules/es.array.for-each");

require("core-js/modules/es.array.includes");

require("core-js/modules/es.object.entries");

require("core-js/modules/es.object.keys");

require("core-js/modules/es.regexp.exec");

require("core-js/modules/es.string.replace");

require("core-js/modules/web.dom-collections.for-each");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.dataFix = void 0;

var isObject_1 = require("./isObject");

var TRUE = ['true', 'TRUE', '1', 1];
var FALSE = ['false', 'FALSE', '0', 0];

function dataFix(o, conf, finalKill) {
  if (!isObject_1.isObject(o)) return;
  var _conf$remove = conf.remove,
      remove = _conf$remove === void 0 ? [] : _conf$remove,
      _conf$rename = conf.rename,
      rename = _conf$rename === void 0 ? {} : _conf$rename,
      _conf$camel = conf.camel,
      camel = _conf$camel === void 0 ? [] : _conf$camel,
      _conf$bool = conf.bool,
      bool = _conf$bool === void 0 ? [] : _conf$bool,
      _conf$lowerFirst = conf.lowerFirst,
      lowerFirst = _conf$lowerFirst === void 0 ? false : _conf$lowerFirst; // 删除不需要的数据

  remove.forEach(function (v) {
    return delete o[v];
  }); // 重命名

  Object.entries(rename).forEach(function (v) {
    if (!o[v[0]]) return;
    if (o[v[1]]) return;
    o[v[1]] = o[v[0]];
    delete o[v[0]];
  }); // 驼峰化

  camel.forEach(function (v) {
    if (!o[v]) return;
    var afterKey = v.replace(/^(.)/, function ($0) {
      return $0.toLowerCase();
    }).replace(/-(\w)/g, function (_, $1) {
      return $1.toUpperCase();
    });
    if (o[afterKey]) return;
    o[afterKey] = o[v]; // todo 暂时兼容以前数据，不做删除
    // delete o[v];
  }); // 转换值为布尔值

  bool.forEach(function (v) {
    o[v] = fixBool(o[v]);
  }); // finalKill

  if (typeof finalKill === 'function') {
    finalKill(o);
  } // 首字母转小写


  fixLowerFirst(o, lowerFirst);
  return dataFix;
}

exports.dataFix = dataFix;

function fixBool(value) {
  if (!value) return false;
  if (TRUE.includes(value)) return true;
  return FALSE.includes(value) ? false : value;
}

function fixLowerFirst(o, lowerFirst) {
  if (lowerFirst) {
    Object.keys(o).forEach(function (key) {
      var lowerK = key.replace(/^\w/, function (match) {
        return match.toLowerCase();
      });

      if (typeof o[lowerK] === 'undefined') {
        o[lowerK] = o[key];
        delete o[key];
      }
    });
  }
}

},{"./isObject":65,"core-js/modules/es.array.for-each":238,"core-js/modules/es.array.includes":240,"core-js/modules/es.object.entries":252,"core-js/modules/es.object.keys":253,"core-js/modules/es.regexp.exec":256,"core-js/modules/es.string.replace":261,"core-js/modules/web.dom-collections.for-each":291}],54:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.array.for-each");

require("core-js/modules/es.array.slice");

require("core-js/modules/es.object.keys");

require("core-js/modules/web.dom-collections.for-each");

var _typeof2 = _interopRequireDefault(require("@babel/runtime/helpers/typeof"));

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.deepCopyWith = exports.deepCopy = void 0;

var isBuffer_1 = require("./isBuffer");

exports.deepCopy = function (obj) {
  if (obj === null || (0, _typeof2.default)(obj) !== 'object') {
    return obj;
  }

  if (isBuffer_1.isBuffer(obj)) {
    return obj.slice();
  }

  var copy = Array.isArray(obj) ? [] : {};
  Object.keys(obj).forEach(function (key) {
    copy[key] = exports.deepCopy(obj[key]);
  });
  return copy;
};

exports.deepCopyWith = function (obj, customizer) {
  function deepCopyWithHelper(value, innerKey, innerObject) {
    var result = customizer(value, innerKey, innerObject);
    if (result !== undefined) return result;

    if (value === null || (0, _typeof2.default)(value) !== 'object') {
      return value;
    }

    if (isBuffer_1.isBuffer(value)) {
      return value.slice();
    }

    var copy = Array.isArray(value) ? [] : {};
    Object.keys(value).forEach(function (k) {
      copy[k] = deepCopyWithHelper(value[k], k, value);
    });
    return copy;
  }

  if (customizer) {
    return deepCopyWithHelper(obj, '', null);
  } else {
    return exports.deepCopy(obj);
  }
};

},{"./isBuffer":61,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/helpers/typeof":73,"core-js/modules/es.array.for-each":238,"core-js/modules/es.array.slice":246,"core-js/modules/es.object.keys":253,"core-js/modules/web.dom-collections.for-each":291}],55:[function(require,module,exports){
(function (Buffer){
"use strict";

require("core-js/modules/es.object.to-string");

require("core-js/modules/es.regexp.to-string");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.encoder = void 0;

function encoder(str) {
  var encoding = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'utf-8';
  if (encoding === 'utf-8') return str;
  return Buffer.from(str).toString('latin1');
}

exports.encoder = encoder;

}).call(this,require("buffer").Buffer)
},{"buffer":99,"core-js/modules/es.object.to-string":254,"core-js/modules/es.regexp.to-string":257}],56:[function(require,module,exports){
"use strict";

require("core-js/modules/es.array.map");

require("core-js/modules/es.regexp.exec");

require("core-js/modules/es.string.replace");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.formatInventoryConfig = void 0;

var dataFix_1 = require("../utils/dataFix");

var isObject_1 = require("../utils/isObject");

var isArray_1 = require("../utils/isArray");

var formatObjKey_1 = require("../utils/formatObjKey");

function formatInventoryConfig(inventoryConfig) {
  var toArray = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
  if (toArray && isObject_1.isObject(inventoryConfig)) inventoryConfig = [inventoryConfig];

  if (isArray_1.isArray(inventoryConfig)) {
    inventoryConfig = inventoryConfig.map(formatFn);
  } else {
    inventoryConfig = formatFn(inventoryConfig);
  }

  return inventoryConfig;
}

exports.formatInventoryConfig = formatInventoryConfig;

function formatFn(_) {
  dataFix_1.dataFix(_, {
    bool: ['IsEnabled']
  }, function (conf) {
    var _a, _b; // prefix


    conf.prefix = conf.Filter.Prefix;
    delete conf.Filter; // OSSBucketDestination

    conf.OSSBucketDestination = conf.Destination.OSSBucketDestination; // OSSBucketDestination.rolename

    conf.OSSBucketDestination.rolename = conf.OSSBucketDestination.RoleArn.replace(/.*\//, '');
    delete conf.OSSBucketDestination.RoleArn; // OSSBucketDestination.bucket

    conf.OSSBucketDestination.bucket = conf.OSSBucketDestination.Bucket.replace(/.*:::/, '');
    delete conf.OSSBucketDestination.Bucket;
    delete conf.Destination; // frequency

    conf.frequency = conf.Schedule.Frequency;
    delete conf.Schedule.Frequency; // optionalFields

    if (((_a = conf === null || conf === void 0 ? void 0 : conf.OptionalFields) === null || _a === void 0 ? void 0 : _a.Field) && !isArray_1.isArray((_b = conf.OptionalFields) === null || _b === void 0 ? void 0 : _b.Field)) conf.OptionalFields.Field = [conf.OptionalFields.Field];
  }); // firstLowerCase

  _ = formatObjKey_1.formatObjKey(_, 'firstLowerCase', {
    exclude: ['OSSBucketDestination', 'SSE-OSS', 'SSE-KMS']
  });
  return _;
}

},{"../utils/dataFix":53,"../utils/formatObjKey":57,"../utils/isArray":59,"../utils/isObject":65,"core-js/modules/es.array.map":245,"core-js/modules/es.regexp.exec":256,"core-js/modules/es.string.replace":261}],57:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.array.for-each");

require("core-js/modules/es.array.includes");

require("core-js/modules/es.object.keys");

require("core-js/modules/es.regexp.exec");

require("core-js/modules/es.string.includes");

require("core-js/modules/es.string.replace");

require("core-js/modules/web.dom-collections.for-each");

var _typeof2 = _interopRequireDefault(require("@babel/runtime/helpers/typeof"));

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.formatObjKey = void 0;

function formatObjKey(obj, type, options) {
  if (obj === null || (0, _typeof2.default)(obj) !== 'object') {
    return obj;
  }

  var o;

  if (Array.isArray(obj)) {
    o = [];

    for (var i = 0; i < obj.length; i++) {
      o.push(formatObjKey(obj[i], type, options));
    }
  } else {
    o = {};
    Object.keys(obj).forEach(function (key) {
      o[handelFormat(key, type, options)] = formatObjKey(obj[key], type, options);
    });
  }

  return o;
}

exports.formatObjKey = formatObjKey;

function handelFormat(key, type, options) {
  var _a;

  if (options && ((_a = options.exclude) === null || _a === void 0 ? void 0 : _a.includes(key))) return key;

  if (type === 'firstUpperCase') {
    key = key.replace(/^./, function (_) {
      return _.toUpperCase();
    });
  } else if (type === 'firstLowerCase') {
    key = key.replace(/^./, function (_) {
      return _.toLowerCase();
    });
  }

  return key;
}

},{"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/helpers/typeof":73,"core-js/modules/es.array.for-each":238,"core-js/modules/es.array.includes":240,"core-js/modules/es.object.keys":253,"core-js/modules/es.regexp.exec":256,"core-js/modules/es.string.includes":258,"core-js/modules/es.string.replace":261,"core-js/modules/web.dom-collections.for-each":291}],58:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getStrBytesCount = void 0;

function getStrBytesCount(str) {
  var bytesCount = 0;

  for (var i = 0; i < str.length; i++) {
    var c = str.charAt(i);

    if (/^[\u00-\uff]$/.test(c)) {
      bytesCount += 1;
    } else {
      bytesCount += 2;
    }
  }

  return bytesCount;
}

exports.getStrBytesCount = getStrBytesCount;

},{}],59:[function(require,module,exports){
"use strict";

require("core-js/modules/es.object.to-string");

require("core-js/modules/es.regexp.to-string");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.isArray = void 0;

exports.isArray = function (obj) {
  return Object.prototype.toString.call(obj) === '[object Array]';
};

},{"core-js/modules/es.object.to-string":254,"core-js/modules/es.regexp.to-string":257}],60:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.isBlob = void 0;

function isBlob(blob) {
  return typeof Blob !== 'undefined' && blob instanceof Blob;
}

exports.isBlob = isBlob;

},{}],61:[function(require,module,exports){
(function (Buffer){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.isBuffer = void 0;

function isBuffer(obj) {
  return Buffer.isBuffer(obj);
}

exports.isBuffer = isBuffer;

}).call(this,{"isBuffer":require("../../../node_modules/is-buffer/index.js")})
},{"../../../node_modules/is-buffer/index.js":307}],62:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.isFile = void 0;

exports.isFile = function (obj) {
  return typeof File !== 'undefined' && obj instanceof File;
};

},{}],63:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.isFunction = void 0;

exports.isFunction = function (v) {
  return typeof v === 'function';
};

},{}],64:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.isIP = void 0; // it provide commont methods for node and browser , we will add more solutions later in this file

/**
 * Judge isIP include ipv4 or ipv6
 * @param {String} options
 * @return {Array} the multipart uploads
 */

exports.isIP = function (host) {
  var ipv4Regex = /^(25[0-5]|2[0-4]\d|[0-1]?\d?\d)(\.(25[0-5]|2[0-4]\d|[0-1]?\d?\d)){3}$/;
  var ipv6Regex = /^\s*((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9A-Fa-f]{1,4}){1,7})|((:[0-9A-Fa-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(%.+)?\s*$/;
  return ipv4Regex.test(host) || ipv6Regex.test(host);
};

},{}],65:[function(require,module,exports){
"use strict";

require("core-js/modules/es.object.to-string");

require("core-js/modules/es.regexp.to-string");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.isObject = void 0;

exports.isObject = function (obj) {
  return Object.prototype.toString.call(obj) === '[object Object]';
};

},{"core-js/modules/es.object.to-string":254,"core-js/modules/es.regexp.to-string":257}],66:[function(require,module,exports){
"use strict";

require("core-js/modules/es.array.for-each");

require("core-js/modules/es.object.keys");

require("core-js/modules/web.dom-collections.for-each");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.lowercaseKeyHeader = void 0;

var isObject_1 = require("./isObject");

function lowercaseKeyHeader(headers) {
  var lowercaseHeader = {};

  if (isObject_1.isObject(headers)) {
    Object.keys(headers).forEach(function (key) {
      lowercaseHeader[key.toLowerCase()] = headers[key];
    });
  }

  return lowercaseHeader;
}

exports.lowercaseKeyHeader = lowercaseKeyHeader;

},{"./isObject":65,"core-js/modules/es.array.for-each":238,"core-js/modules/es.object.keys":253,"core-js/modules/web.dom-collections.for-each":291}],67:[function(require,module,exports){
"use strict";

require("core-js/modules/es.array.concat");

require("core-js/modules/es.array.for-each");

require("core-js/modules/es.array.join");

require("core-js/modules/es.array.map");

require("core-js/modules/es.object.keys");

require("core-js/modules/es.object.to-string");

require("core-js/modules/es.regexp.exec");

require("core-js/modules/es.regexp.to-string");

require("core-js/modules/es.string.replace");

require("core-js/modules/web.dom-collections.for-each");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.obj2xml = void 0;

var formatObjKey_1 = require("./formatObjKey");

function type(params) {
  return Object.prototype.toString.call(params).replace(/(.*? |])/g, '').toLowerCase();
}

function obj2xml(obj, options) {
  var s = '';

  if (options && options.headers) {
    s = '<?xml version="1.0" encoding="UTF-8"?>\n';
  }

  if (options && options.firstUpperCase) {
    obj = formatObjKey_1.formatObjKey(obj, 'firstUpperCase');
  }

  if (type(obj) === 'object') {
    Object.keys(obj).forEach(function (key) {
      // filter undefined or null
      if (type(obj[key]) !== 'undefined' && type(obj[key]) !== 'null') {
        if (type(obj[key]) === 'string' || type(obj[key]) === 'number') {
          s += "<".concat(key, ">").concat(obj[key], "</").concat(key, ">");
        } else if (type(obj[key]) === 'object') {
          s += "<".concat(key, ">").concat(obj2xml(obj[key]), "</").concat(key, ">");
        } else if (type(obj[key]) === 'array') {
          s += obj[key].map(function (keyChild) {
            return "<".concat(key, ">").concat(obj2xml(keyChild), "</").concat(key, ">");
          }).join('');
        } else {
          s += "<".concat(key, ">").concat(obj[key].toString(), "</").concat(key, ">");
        }
      }
    });
  } else {
    s += obj.toString();
  }

  return s;
}

exports.obj2xml = obj2xml;

},{"./formatObjKey":57,"core-js/modules/es.array.concat":234,"core-js/modules/es.array.for-each":238,"core-js/modules/es.array.join":243,"core-js/modules/es.array.map":245,"core-js/modules/es.object.keys":253,"core-js/modules/es.object.to-string":254,"core-js/modules/es.regexp.exec":256,"core-js/modules/es.regexp.to-string":257,"core-js/modules/es.string.replace":261,"core-js/modules/web.dom-collections.for-each":291}],68:[function(require,module,exports){
"use strict";

require("core-js/modules/es.object.to-string");

require("core-js/modules/es.promise");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.retry = void 0;

function retry(func, retryMax) {
  var config = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
  var retryNum = 0;
  var _config$retryDelay = config.retryDelay,
      retryDelay = _config$retryDelay === void 0 ? 500 : _config$retryDelay,
      _config$errorHandler = config.errorHandler,
      errorHandler = _config$errorHandler === void 0 ? function () {
    return true;
  } : _config$errorHandler;

  var funcR = function funcR() {
    for (var _len = arguments.length, arg = new Array(_len), _key = 0; _key < _len; _key++) {
      arg[_key] = arguments[_key];
    }

    return new Promise(function (resolve, reject) {
      func.apply(void 0, arg).then(function (result) {
        retryNum = 0;
        resolve(result);
      }).catch(function (err) {
        if (retryNum < retryMax && errorHandler(err)) {
          retryNum++;
          setTimeout(function () {
            resolve(funcR.apply(void 0, arg));
          }, retryDelay);
        } else {
          retryNum = 0;
          reject(err);
        }
      });
    });
  };

  return funcR;
}

exports.retry = retry;

},{"core-js/modules/es.object.to-string":254,"core-js/modules/es.promise":255}],69:[function(require,module,exports){
"use strict";

var __importDefault = void 0 && (void 0).__importDefault || function (mod) {
  return mod && mod.__esModule ? mod : {
    "default": mod
  };
};

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.setRegion = void 0;

var url_1 = __importDefault(require("url"));

var checkConfigValid_1 = require("./checkConfigValid");

function setRegion(region) {
  var internal = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
  var secure = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
  checkConfigValid_1.checkConfigValid(region, 'region');
  var protocol = secure ? 'https://' : 'http://';
  var suffix = internal ? '-internal.aliyuncs.com' : '.aliyuncs.com';
  var prefix = 'vpc100-oss-cn-'; // aliyun VPC region: https://help.aliyun.com/knowledge_detail/38740.html

  if (region.substr(0, prefix.length) === prefix) {
    suffix = '.aliyuncs.com';
  }

  return url_1.default.parse(protocol + region + suffix);
}

exports.setRegion = setRegion;

},{"./checkConfigValid":49,"url":393}],70:[function(require,module,exports){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.array.find");

require("core-js/modules/es.array.for-each");

require("core-js/modules/es.object.assign");

require("core-js/modules/es.object.keys");

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

require("regenerator-runtime/runtime");

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.setSTSToken = void 0;

var formatObjKey_1 = require("./formatObjKey");

function setSTSToken() {
  return _setSTSToken.apply(this, arguments);
}

function _setSTSToken() {
  _setSTSToken = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee() {
    var now, credentials;
    return _regenerator.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            if (!this.options) this.options = {};
            now = new Date();

            if (!this.stsTokenFreshTime) {
              _context.next = 14;
              break;
            }

            if (!(+now - this.stsTokenFreshTime >= this.options.refreshSTSTokenInterval)) {
              _context.next = 12;
              break;
            }

            this.stsTokenFreshTime = now;
            _context.next = 7;
            return this.options.refreshSTSToken();

          case 7:
            credentials = _context.sent;
            credentials = formatObjKey_1.formatObjKey(credentials, 'firstLowerCase');

            if (credentials.securityToken) {
              credentials.stsToken = credentials.securityToken;
            }

            checkCredentials(credentials);
            Object.assign(this.options, credentials);

          case 12:
            _context.next = 15;
            break;

          case 14:
            this.stsTokenFreshTime = now;

          case 15:
            return _context.abrupt("return", null);

          case 16:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, this);
  }));
  return _setSTSToken.apply(this, arguments);
}

exports.setSTSToken = setSTSToken;

function checkCredentials(obj) {
  var stsTokenKey = ['accessKeySecret', 'accessKeyId', 'stsToken'];
  var objKeys = Object.keys(obj);
  stsTokenKey.forEach(function (_) {
    if (!objKeys.find(function (key) {
      return key === _;
    })) {
      throw Error("refreshSTSToken must return contains ".concat(_));
    }
  });
}

},{"./formatObjKey":57,"@babel/runtime/helpers/asyncToGenerator":71,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/regenerator":75,"core-js/modules/es.array.find":237,"core-js/modules/es.array.for-each":238,"core-js/modules/es.object.assign":251,"core-js/modules/es.object.keys":253,"regenerator-runtime/runtime":336}],71:[function(require,module,exports){
function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
  try {
    var info = gen[key](arg);
    var value = info.value;
  } catch (error) {
    reject(error);
    return;
  }

  if (info.done) {
    resolve(value);
  } else {
    Promise.resolve(value).then(_next, _throw);
  }
}

function _asyncToGenerator(fn) {
  return function () {
    var self = this,
        args = arguments;
    return new Promise(function (resolve, reject) {
      var gen = fn.apply(self, args);

      function _next(value) {
        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
      }

      function _throw(err) {
        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
      }

      _next(undefined);
    });
  };
}

module.exports = _asyncToGenerator;
},{}],72:[function(require,module,exports){
function _interopRequireDefault(obj) {
  return obj && obj.__esModule ? obj : {
    "default": obj
  };
}

module.exports = _interopRequireDefault;
},{}],73:[function(require,module,exports){
function _typeof(obj) {
  "@babel/helpers - typeof";

  if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
    module.exports = _typeof = function _typeof(obj) {
      return typeof obj;
    };
  } else {
    module.exports = _typeof = function _typeof(obj) {
      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
    };
  }

  return _typeof(obj);
}

module.exports = _typeof;
},{}],74:[function(require,module,exports){
/**
 * Copyright (c) 2014-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

var runtime = (function (exports) {
  "use strict";

  var Op = Object.prototype;
  var hasOwn = Op.hasOwnProperty;
  var undefined; // More compressible than void 0.
  var $Symbol = typeof Symbol === "function" ? Symbol : {};
  var iteratorSymbol = $Symbol.iterator || "@@iterator";
  var asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator";
  var toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";

  function define(obj, key, value) {
    Object.defineProperty(obj, key, {
      value: value,
      enumerable: true,
      configurable: true,
      writable: true
    });
    return obj[key];
  }
  try {
    // IE 8 has a broken Object.defineProperty that only works on DOM objects.
    define({}, "");
  } catch (err) {
    define = function(obj, key, value) {
      return obj[key] = value;
    };
  }

  function wrap(innerFn, outerFn, self, tryLocsList) {
    // If outerFn provided and outerFn.prototype is a Generator, then outerFn.prototype instanceof Generator.
    var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;
    var generator = Object.create(protoGenerator.prototype);
    var context = new Context(tryLocsList || []);

    // The ._invoke method unifies the implementations of the .next,
    // .throw, and .return methods.
    generator._invoke = makeInvokeMethod(innerFn, self, context);

    return generator;
  }
  exports.wrap = wrap;

  // Try/catch helper to minimize deoptimizations. Returns a completion
  // record like context.tryEntries[i].completion. This interface could
  // have been (and was previously) designed to take a closure to be
  // invoked without arguments, but in all the cases we care about we
  // already have an existing method we want to call, so there's no need
  // to create a new function object. We can even get away with assuming
  // the method takes exactly one argument, since that happens to be true
  // in every case, so we don't have to touch the arguments object. The
  // only additional allocation required is the completion record, which
  // has a stable shape and so hopefully should be cheap to allocate.
  function tryCatch(fn, obj, arg) {
    try {
      return { type: "normal", arg: fn.call(obj, arg) };
    } catch (err) {
      return { type: "throw", arg: err };
    }
  }

  var GenStateSuspendedStart = "suspendedStart";
  var GenStateSuspendedYield = "suspendedYield";
  var GenStateExecuting = "executing";
  var GenStateCompleted = "completed";

  // Returning this object from the innerFn has the same effect as
  // breaking out of the dispatch switch statement.
  var ContinueSentinel = {};

  // Dummy constructor functions that we use as the .constructor and
  // .constructor.prototype properties for functions that return Generator
  // objects. For full spec compliance, you may wish to configure your
  // minifier not to mangle the names of these two functions.
  function Generator() {}
  function GeneratorFunction() {}
  function GeneratorFunctionPrototype() {}

  // This is a polyfill for %IteratorPrototype% for environments that
  // don't natively support it.
  var IteratorPrototype = {};
  IteratorPrototype[iteratorSymbol] = function () {
    return this;
  };

  var getProto = Object.getPrototypeOf;
  var NativeIteratorPrototype = getProto && getProto(getProto(values([])));
  if (NativeIteratorPrototype &&
      NativeIteratorPrototype !== Op &&
      hasOwn.call(NativeIteratorPrototype, iteratorSymbol)) {
    // This environment has a native %IteratorPrototype%; use it instead
    // of the polyfill.
    IteratorPrototype = NativeIteratorPrototype;
  }

  var Gp = GeneratorFunctionPrototype.prototype =
    Generator.prototype = Object.create(IteratorPrototype);
  GeneratorFunction.prototype = Gp.constructor = GeneratorFunctionPrototype;
  GeneratorFunctionPrototype.constructor = GeneratorFunction;
  GeneratorFunction.displayName = define(
    GeneratorFunctionPrototype,
    toStringTagSymbol,
    "GeneratorFunction"
  );

  // Helper for defining the .next, .throw, and .return methods of the
  // Iterator interface in terms of a single ._invoke method.
  function defineIteratorMethods(prototype) {
    ["next", "throw", "return"].forEach(function(method) {
      define(prototype, method, function(arg) {
        return this._invoke(method, arg);
      });
    });
  }

  exports.isGeneratorFunction = function(genFun) {
    var ctor = typeof genFun === "function" && genFun.constructor;
    return ctor
      ? ctor === GeneratorFunction ||
        // For the native GeneratorFunction constructor, the best we can
        // do is to check its .name property.
        (ctor.displayName || ctor.name) === "GeneratorFunction"
      : false;
  };

  exports.mark = function(genFun) {
    if (Object.setPrototypeOf) {
      Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
    } else {
      genFun.__proto__ = GeneratorFunctionPrototype;
      define(genFun, toStringTagSymbol, "GeneratorFunction");
    }
    genFun.prototype = Object.create(Gp);
    return genFun;
  };

  // Within the body of any async function, `await x` is transformed to
  // `yield regeneratorRuntime.awrap(x)`, so that the runtime can test
  // `hasOwn.call(value, "__await")` to determine if the yielded value is
  // meant to be awaited.
  exports.awrap = function(arg) {
    return { __await: arg };
  };

  function AsyncIterator(generator, PromiseImpl) {
    function invoke(method, arg, resolve, reject) {
      var record = tryCatch(generator[method], generator, arg);
      if (record.type === "throw") {
        reject(record.arg);
      } else {
        var result = record.arg;
        var value = result.value;
        if (value &&
            typeof value === "object" &&
            hasOwn.call(value, "__await")) {
          return PromiseImpl.resolve(value.__await).then(function(value) {
            invoke("next", value, resolve, reject);
          }, function(err) {
            invoke("throw", err, resolve, reject);
          });
        }

        return PromiseImpl.resolve(value).then(function(unwrapped) {
          // When a yielded Promise is resolved, its final value becomes
          // the .value of the Promise<{value,done}> result for the
          // current iteration.
          result.value = unwrapped;
          resolve(result);
        }, function(error) {
          // If a rejected Promise was yielded, throw the rejection back
          // into the async generator function so it can be handled there.
          return invoke("throw", error, resolve, reject);
        });
      }
    }

    var previousPromise;

    function enqueue(method, arg) {
      function callInvokeWithMethodAndArg() {
        return new PromiseImpl(function(resolve, reject) {
          invoke(method, arg, resolve, reject);
        });
      }

      return previousPromise =
        // If enqueue has been called before, then we want to wait until
        // all previous Promises have been resolved before calling invoke,
        // so that results are always delivered in the correct order. If
        // enqueue has not been called before, then it is important to
        // call invoke immediately, without waiting on a callback to fire,
        // so that the async generator function has the opportunity to do
        // any necessary setup in a predictable way. This predictability
        // is why the Promise constructor synchronously invokes its
        // executor callback, and why async functions synchronously
        // execute code before the first await. Since we implement simple
        // async functions in terms of async generators, it is especially
        // important to get this right, even though it requires care.
        previousPromise ? previousPromise.then(
          callInvokeWithMethodAndArg,
          // Avoid propagating failures to Promises returned by later
          // invocations of the iterator.
          callInvokeWithMethodAndArg
        ) : callInvokeWithMethodAndArg();
    }

    // Define the unified helper method that is used to implement .next,
    // .throw, and .return (see defineIteratorMethods).
    this._invoke = enqueue;
  }

  defineIteratorMethods(AsyncIterator.prototype);
  AsyncIterator.prototype[asyncIteratorSymbol] = function () {
    return this;
  };
  exports.AsyncIterator = AsyncIterator;

  // Note that simple async functions are implemented on top of
  // AsyncIterator objects; they just return a Promise for the value of
  // the final result produced by the iterator.
  exports.async = function(innerFn, outerFn, self, tryLocsList, PromiseImpl) {
    if (PromiseImpl === void 0) PromiseImpl = Promise;

    var iter = new AsyncIterator(
      wrap(innerFn, outerFn, self, tryLocsList),
      PromiseImpl
    );

    return exports.isGeneratorFunction(outerFn)
      ? iter // If outerFn is a generator, return the full iterator.
      : iter.next().then(function(result) {
          return result.done ? result.value : iter.next();
        });
  };

  function makeInvokeMethod(innerFn, self, context) {
    var state = GenStateSuspendedStart;

    return function invoke(method, arg) {
      if (state === GenStateExecuting) {
        throw new Error("Generator is already running");
      }

      if (state === GenStateCompleted) {
        if (method === "throw") {
          throw arg;
        }

        // Be forgiving, per 25.3.3.3.3 of the spec:
        // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-generatorresume
        return doneResult();
      }

      context.method = method;
      context.arg = arg;

      while (true) {
        var delegate = context.delegate;
        if (delegate) {
          var delegateResult = maybeInvokeDelegate(delegate, context);
          if (delegateResult) {
            if (delegateResult === ContinueSentinel) continue;
            return delegateResult;
          }
        }

        if (context.method === "next") {
          // Setting context._sent for legacy support of Babel's
          // function.sent implementation.
          context.sent = context._sent = context.arg;

        } else if (context.method === "throw") {
          if (state === GenStateSuspendedStart) {
            state = GenStateCompleted;
            throw context.arg;
          }

          context.dispatchException(context.arg);

        } else if (context.method === "return") {
          context.abrupt("return", context.arg);
        }

        state = GenStateExecuting;

        var record = tryCatch(innerFn, self, context);
        if (record.type === "normal") {
          // If an exception is thrown from innerFn, we leave state ===
          // GenStateExecuting and loop back for another invocation.
          state = context.done
            ? GenStateCompleted
            : GenStateSuspendedYield;

          if (record.arg === ContinueSentinel) {
            continue;
          }

          return {
            value: record.arg,
            done: context.done
          };

        } else if (record.type === "throw") {
          state = GenStateCompleted;
          // Dispatch the exception by looping back around to the
          // context.dispatchException(context.arg) call above.
          context.method = "throw";
          context.arg = record.arg;
        }
      }
    };
  }

  // Call delegate.iterator[context.method](context.arg) and handle the
  // result, either by returning a { value, done } result from the
  // delegate iterator, or by modifying context.method and context.arg,
  // setting context.delegate to null, and returning the ContinueSentinel.
  function maybeInvokeDelegate(delegate, context) {
    var method = delegate.iterator[context.method];
    if (method === undefined) {
      // A .throw or .return when the delegate iterator has no .throw
      // method always terminates the yield* loop.
      context.delegate = null;

      if (context.method === "throw") {
        // Note: ["return"] must be used for ES3 parsing compatibility.
        if (delegate.iterator["return"]) {
          // If the delegate iterator has a return method, give it a
          // chance to clean up.
          context.method = "return";
          context.arg = undefined;
          maybeInvokeDelegate(delegate, context);

          if (context.method === "throw") {
            // If maybeInvokeDelegate(context) changed context.method from
            // "return" to "throw", let that override the TypeError below.
            return ContinueSentinel;
          }
        }

        context.method = "throw";
        context.arg = new TypeError(
          "The iterator does not provide a 'throw' method");
      }

      return ContinueSentinel;
    }

    var record = tryCatch(method, delegate.iterator, context.arg);

    if (record.type === "throw") {
      context.method = "throw";
      context.arg = record.arg;
      context.delegate = null;
      return ContinueSentinel;
    }

    var info = record.arg;

    if (! info) {
      context.method = "throw";
      context.arg = new TypeError("iterator result is not an object");
      context.delegate = null;
      return ContinueSentinel;
    }

    if (info.done) {
      // Assign the result of the finished delegate to the temporary
      // variable specified by delegate.resultName (see delegateYield).
      context[delegate.resultName] = info.value;

      // Resume execution at the desired location (see delegateYield).
      context.next = delegate.nextLoc;

      // If context.method was "throw" but the delegate handled the
      // exception, let the outer generator proceed normally. If
      // context.method was "next", forget context.arg since it has been
      // "consumed" by the delegate iterator. If context.method was
      // "return", allow the original .return call to continue in the
      // outer generator.
      if (context.method !== "return") {
        context.method = "next";
        context.arg = undefined;
      }

    } else {
      // Re-yield the result returned by the delegate method.
      return info;
    }

    // The delegate iterator is finished, so forget it and continue with
    // the outer generator.
    context.delegate = null;
    return ContinueSentinel;
  }

  // Define Generator.prototype.{next,throw,return} in terms of the
  // unified ._invoke helper method.
  defineIteratorMethods(Gp);

  define(Gp, toStringTagSymbol, "Generator");

  // A Generator should always return itself as the iterator object when the
  // @@iterator function is called on it. Some browsers' implementations of the
  // iterator prototype chain incorrectly implement this, causing the Generator
  // object to not be returned from this call. This ensures that doesn't happen.
  // See https://github.com/facebook/regenerator/issues/274 for more details.
  Gp[iteratorSymbol] = function() {
    return this;
  };

  Gp.toString = function() {
    return "[object Generator]";
  };

  function pushTryEntry(locs) {
    var entry = { tryLoc: locs[0] };

    if (1 in locs) {
      entry.catchLoc = locs[1];
    }

    if (2 in locs) {
      entry.finallyLoc = locs[2];
      entry.afterLoc = locs[3];
    }

    this.tryEntries.push(entry);
  }

  function resetTryEntry(entry) {
    var record = entry.completion || {};
    record.type = "normal";
    delete record.arg;
    entry.completion = record;
  }

  function Context(tryLocsList) {
    // The root entry object (effectively a try statement without a catch
    // or a finally block) gives us a place to store values thrown from
    // locations where there is no enclosing try statement.
    this.tryEntries = [{ tryLoc: "root" }];
    tryLocsList.forEach(pushTryEntry, this);
    this.reset(true);
  }

  exports.keys = function(object) {
    var keys = [];
    for (var key in object) {
      keys.push(key);
    }
    keys.reverse();

    // Rather than returning an object with a next method, we keep
    // things simple and return the next function itself.
    return function next() {
      while (keys.length) {
        var key = keys.pop();
        if (key in object) {
          next.value = key;
          next.done = false;
          return next;
        }
      }

      // To avoid creating an additional object, we just hang the .value
      // and .done properties off the next function object itself. This
      // also ensures that the minifier will not anonymize the function.
      next.done = true;
      return next;
    };
  };

  function values(iterable) {
    if (iterable) {
      var iteratorMethod = iterable[iteratorSymbol];
      if (iteratorMethod) {
        return iteratorMethod.call(iterable);
      }

      if (typeof iterable.next === "function") {
        return iterable;
      }

      if (!isNaN(iterable.length)) {
        var i = -1, next = function next() {
          while (++i < iterable.length) {
            if (hasOwn.call(iterable, i)) {
              next.value = iterable[i];
              next.done = false;
              return next;
            }
          }

          next.value = undefined;
          next.done = true;

          return next;
        };

        return next.next = next;
      }
    }

    // Return an iterator with no values.
    return { next: doneResult };
  }
  exports.values = values;

  function doneResult() {
    return { value: undefined, done: true };
  }

  Context.prototype = {
    constructor: Context,

    reset: function(skipTempReset) {
      this.prev = 0;
      this.next = 0;
      // Resetting context._sent for legacy support of Babel's
      // function.sent implementation.
      this.sent = this._sent = undefined;
      this.done = false;
      this.delegate = null;

      this.method = "next";
      this.arg = undefined;

      this.tryEntries.forEach(resetTryEntry);

      if (!skipTempReset) {
        for (var name in this) {
          // Not sure about the optimal order of these conditions:
          if (name.charAt(0) === "t" &&
              hasOwn.call(this, name) &&
              !isNaN(+name.slice(1))) {
            this[name] = undefined;
          }
        }
      }
    },

    stop: function() {
      this.done = true;

      var rootEntry = this.tryEntries[0];
      var rootRecord = rootEntry.completion;
      if (rootRecord.type === "throw") {
        throw rootRecord.arg;
      }

      return this.rval;
    },

    dispatchException: function(exception) {
      if (this.done) {
        throw exception;
      }

      var context = this;
      function handle(loc, caught) {
        record.type = "throw";
        record.arg = exception;
        context.next = loc;

        if (caught) {
          // If the dispatched exception was caught by a catch block,
          // then let that catch block handle the exception normally.
          context.method = "next";
          context.arg = undefined;
        }

        return !! caught;
      }

      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];
        var record = entry.completion;

        if (entry.tryLoc === "root") {
          // Exception thrown outside of any try block that could handle
          // it, so set the completion value of the entire function to
          // throw the exception.
          return handle("end");
        }

        if (entry.tryLoc <= this.prev) {
          var hasCatch = hasOwn.call(entry, "catchLoc");
          var hasFinally = hasOwn.call(entry, "finallyLoc");

          if (hasCatch && hasFinally) {
            if (this.prev < entry.catchLoc) {
              return handle(entry.catchLoc, true);
            } else if (this.prev < entry.finallyLoc) {
              return handle(entry.finallyLoc);
            }

          } else if (hasCatch) {
            if (this.prev < entry.catchLoc) {
              return handle(entry.catchLoc, true);
            }

          } else if (hasFinally) {
            if (this.prev < entry.finallyLoc) {
              return handle(entry.finallyLoc);
            }

          } else {
            throw new Error("try statement without catch or finally");
          }
        }
      }
    },

    abrupt: function(type, arg) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];
        if (entry.tryLoc <= this.prev &&
            hasOwn.call(entry, "finallyLoc") &&
            this.prev < entry.finallyLoc) {
          var finallyEntry = entry;
          break;
        }
      }

      if (finallyEntry &&
          (type === "break" ||
           type === "continue") &&
          finallyEntry.tryLoc <= arg &&
          arg <= finallyEntry.finallyLoc) {
        // Ignore the finally entry if control is not jumping to a
        // location outside the try/catch block.
        finallyEntry = null;
      }

      var record = finallyEntry ? finallyEntry.completion : {};
      record.type = type;
      record.arg = arg;

      if (finallyEntry) {
        this.method = "next";
        this.next = finallyEntry.finallyLoc;
        return ContinueSentinel;
      }

      return this.complete(record);
    },

    complete: function(record, afterLoc) {
      if (record.type === "throw") {
        throw record.arg;
      }

      if (record.type === "break" ||
          record.type === "continue") {
        this.next = record.arg;
      } else if (record.type === "return") {
        this.rval = this.arg = record.arg;
        this.method = "return";
        this.next = "end";
      } else if (record.type === "normal" && afterLoc) {
        this.next = afterLoc;
      }

      return ContinueSentinel;
    },

    finish: function(finallyLoc) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];
        if (entry.finallyLoc === finallyLoc) {
          this.complete(entry.completion, entry.afterLoc);
          resetTryEntry(entry);
          return ContinueSentinel;
        }
      }
    },

    "catch": function(tryLoc) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];
        if (entry.tryLoc === tryLoc) {
          var record = entry.completion;
          if (record.type === "throw") {
            var thrown = record.arg;
            resetTryEntry(entry);
          }
          return thrown;
        }
      }

      // The context.catch method must only be called with a location
      // argument that corresponds to a known catch block.
      throw new Error("illegal catch attempt");
    },

    delegateYield: function(iterable, resultName, nextLoc) {
      this.delegate = {
        iterator: values(iterable),
        resultName: resultName,
        nextLoc: nextLoc
      };

      if (this.method === "next") {
        // Deliberately forget the last sent value so that we don't
        // accidentally pass it on to the delegate.
        this.arg = undefined;
      }

      return ContinueSentinel;
    }
  };

  // Regardless of whether this script is executing as a CommonJS module
  // or not, return the runtime object so that we can declare the variable
  // regeneratorRuntime in the outer scope, which allows this module to be
  // injected easily by `bin/regenerator --include-runtime script.js`.
  return exports;

}(
  // If this script is executing as a CommonJS module, use module.exports
  // as the regeneratorRuntime namespace. Otherwise create a new empty
  // object. Either way, the resulting object will be used to initialize
  // the regeneratorRuntime variable at the top of this file.
  typeof module === "object" ? module.exports : {}
));

try {
  regeneratorRuntime = runtime;
} catch (accidentalStrictMode) {
  // This module should not be running in strict mode, so the above
  // assignment should always work unless something is misconfigured. Just
  // in case runtime.js accidentally runs in strict mode, we can escape
  // strict mode using a global Function call. This could conceivably fail
  // if a Content Security Policy forbids using Function, but in that case
  // the proper solution is to fix the accidental strict mode problem. If
  // you've misconfigured your bundler to force strict mode and applied a
  // CSP to forbid Function, and you're not willing to fix either of those
  // problems, please detail your unique predicament in a GitHub issue.
  Function("r", "regeneratorRuntime = r")(runtime);
}

},{}],75:[function(require,module,exports){
module.exports = require("regenerator-runtime");

},{"regenerator-runtime":74}],76:[function(require,module,exports){
module.exports = noop;
module.exports.HttpsAgent = noop;

// Noop function for browser since native api's don't use agents.
function noop () {}

},{}],77:[function(require,module,exports){
'use strict'

exports.byteLength = byteLength
exports.toByteArray = toByteArray
exports.fromByteArray = fromByteArray

var lookup = []
var revLookup = []
var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array

var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
for (var i = 0, len = code.length; i < len; ++i) {
  lookup[i] = code[i]
  revLookup[code.charCodeAt(i)] = i
}

// Support decoding URL-safe base64 strings, as Node.js does.
// See: https://en.wikipedia.org/wiki/Base64#URL_applications
revLookup['-'.charCodeAt(0)] = 62
revLookup['_'.charCodeAt(0)] = 63

function getLens (b64) {
  var len = b64.length

  if (len % 4 > 0) {
    throw new Error('Invalid string. Length must be a multiple of 4')
  }

  // Trim off extra bytes after placeholder bytes are found
  // See: https://github.com/beatgammit/base64-js/issues/42
  var validLen = b64.indexOf('=')
  if (validLen === -1) validLen = len

  var placeHoldersLen = validLen === len
    ? 0
    : 4 - (validLen % 4)

  return [validLen, placeHoldersLen]
}

// base64 is 4/3 + up to two characters of the original data
function byteLength (b64) {
  var lens = getLens(b64)
  var validLen = lens[0]
  var placeHoldersLen = lens[1]
  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
}

function _byteLength (b64, validLen, placeHoldersLen) {
  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
}

function toByteArray (b64) {
  var tmp
  var lens = getLens(b64)
  var validLen = lens[0]
  var placeHoldersLen = lens[1]

  var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))

  var curByte = 0

  // if there are placeholders, only get up to the last complete 4 chars
  var len = placeHoldersLen > 0
    ? validLen - 4
    : validLen

  var i
  for (i = 0; i < len; i += 4) {
    tmp =
      (revLookup[b64.charCodeAt(i)] << 18) |
      (revLookup[b64.charCodeAt(i + 1)] << 12) |
      (revLookup[b64.charCodeAt(i + 2)] << 6) |
      revLookup[b64.charCodeAt(i + 3)]
    arr[curByte++] = (tmp >> 16) & 0xFF
    arr[curByte++] = (tmp >> 8) & 0xFF
    arr[curByte++] = tmp & 0xFF
  }

  if (placeHoldersLen === 2) {
    tmp =
      (revLookup[b64.charCodeAt(i)] << 2) |
      (revLookup[b64.charCodeAt(i + 1)] >> 4)
    arr[curByte++] = tmp & 0xFF
  }

  if (placeHoldersLen === 1) {
    tmp =
      (revLookup[b64.charCodeAt(i)] << 10) |
      (revLookup[b64.charCodeAt(i + 1)] << 4) |
      (revLookup[b64.charCodeAt(i + 2)] >> 2)
    arr[curByte++] = (tmp >> 8) & 0xFF
    arr[curByte++] = tmp & 0xFF
  }

  return arr
}

function tripletToBase64 (num) {
  return lookup[num >> 18 & 0x3F] +
    lookup[num >> 12 & 0x3F] +
    lookup[num >> 6 & 0x3F] +
    lookup[num & 0x3F]
}

function encodeChunk (uint8, start, end) {
  var tmp
  var output = []
  for (var i = start; i < end; i += 3) {
    tmp =
      ((uint8[i] << 16) & 0xFF0000) +
      ((uint8[i + 1] << 8) & 0xFF00) +
      (uint8[i + 2] & 0xFF)
    output.push(tripletToBase64(tmp))
  }
  return output.join('')
}

function fromByteArray (uint8) {
  var tmp
  var len = uint8.length
  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
  var parts = []
  var maxChunkLength = 16383 // must be multiple of 3

  // go through the array every three bytes, we'll deal with trailing stuff later
  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
    parts.push(encodeChunk(
      uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)
    ))
  }

  // pad the end with zeros, but make sure to not forget the extra bytes
  if (extraBytes === 1) {
    tmp = uint8[len - 1]
    parts.push(
      lookup[tmp >> 2] +
      lookup[(tmp << 4) & 0x3F] +
      '=='
    )
  } else if (extraBytes === 2) {
    tmp = (uint8[len - 2] << 8) + uint8[len - 1]
    parts.push(
      lookup[tmp >> 10] +
      lookup[(tmp >> 4) & 0x3F] +
      lookup[(tmp << 2) & 0x3F] +
      '='
    )
  }

  return parts.join('')
}

},{}],78:[function(require,module,exports){
/*!
 * Bowser - a browser detector
 * https://github.com/ded/bowser
 * MIT License | (c) Dustin Diaz 2015
 */

!function (root, name, definition) {
  if (typeof module != 'undefined' && module.exports) module.exports = definition()
  else if (typeof define == 'function' && define.amd) define(name, definition)
  else root[name] = definition()
}(this, 'bowser', function () {
  /**
    * See useragents.js for examples of navigator.userAgent
    */

  var t = true

  function detect(ua) {

    function getFirstMatch(regex) {
      var match = ua.match(regex);
      return (match && match.length > 1 && match[1]) || '';
    }

    function getSecondMatch(regex) {
      var match = ua.match(regex);
      return (match && match.length > 1 && match[2]) || '';
    }

    var iosdevice = getFirstMatch(/(ipod|iphone|ipad)/i).toLowerCase()
      , likeAndroid = /like android/i.test(ua)
      , android = !likeAndroid && /android/i.test(ua)
      , nexusMobile = /nexus\s*[0-6]\s*/i.test(ua)
      , nexusTablet = !nexusMobile && /nexus\s*[0-9]+/i.test(ua)
      , chromeos = /CrOS/.test(ua)
      , silk = /silk/i.test(ua)
      , sailfish = /sailfish/i.test(ua)
      , tizen = /tizen/i.test(ua)
      , webos = /(web|hpw)(o|0)s/i.test(ua)
      , windowsphone = /windows phone/i.test(ua)
      , samsungBrowser = /SamsungBrowser/i.test(ua)
      , windows = !windowsphone && /windows/i.test(ua)
      , mac = !iosdevice && !silk && /macintosh/i.test(ua)
      , linux = !android && !sailfish && !tizen && !webos && /linux/i.test(ua)
      , edgeVersion = getSecondMatch(/edg([ea]|ios)\/(\d+(\.\d+)?)/i)
      , versionIdentifier = getFirstMatch(/version\/(\d+(\.\d+)?)/i)
      , tablet = /tablet/i.test(ua) && !/tablet pc/i.test(ua)
      , mobile = !tablet && /[^-]mobi/i.test(ua)
      , xbox = /xbox/i.test(ua)
      , result

    if (/opera/i.test(ua)) {
      //  an old Opera
      result = {
        name: 'Opera'
      , opera: t
      , version: versionIdentifier || getFirstMatch(/(?:opera|opr|opios)[\s\/](\d+(\.\d+)?)/i)
      }
    } else if (/opr\/|opios/i.test(ua)) {
      // a new Opera
      result = {
        name: 'Opera'
        , opera: t
        , version: getFirstMatch(/(?:opr|opios)[\s\/](\d+(\.\d+)?)/i) || versionIdentifier
      }
    }
    else if (/SamsungBrowser/i.test(ua)) {
      result = {
        name: 'Samsung Internet for Android'
        , samsungBrowser: t
        , version: versionIdentifier || getFirstMatch(/(?:SamsungBrowser)[\s\/](\d+(\.\d+)?)/i)
      }
    }
    else if (/Whale/i.test(ua)) {
      result = {
        name: 'NAVER Whale browser'
        , whale: t
        , version: getFirstMatch(/(?:whale)[\s\/](\d+(?:\.\d+)+)/i)
      }
    }
    else if (/MZBrowser/i.test(ua)) {
      result = {
        name: 'MZ Browser'
        , mzbrowser: t
        , version: getFirstMatch(/(?:MZBrowser)[\s\/](\d+(?:\.\d+)+)/i)
      }
    }
    else if (/coast/i.test(ua)) {
      result = {
        name: 'Opera Coast'
        , coast: t
        , version: versionIdentifier || getFirstMatch(/(?:coast)[\s\/](\d+(\.\d+)?)/i)
      }
    }
    else if (/focus/i.test(ua)) {
      result = {
        name: 'Focus'
        , focus: t
        , version: getFirstMatch(/(?:focus)[\s\/](\d+(?:\.\d+)+)/i)
      }
    }
    else if (/yabrowser/i.test(ua)) {
      result = {
        name: 'Yandex Browser'
      , yandexbrowser: t
      , version: versionIdentifier || getFirstMatch(/(?:yabrowser)[\s\/](\d+(\.\d+)?)/i)
      }
    }
    else if (/ucbrowser/i.test(ua)) {
      result = {
          name: 'UC Browser'
        , ucbrowser: t
        , version: getFirstMatch(/(?:ucbrowser)[\s\/](\d+(?:\.\d+)+)/i)
      }
    }
    else if (/mxios/i.test(ua)) {
      result = {
        name: 'Maxthon'
        , maxthon: t
        , version: getFirstMatch(/(?:mxios)[\s\/](\d+(?:\.\d+)+)/i)
      }
    }
    else if (/epiphany/i.test(ua)) {
      result = {
        name: 'Epiphany'
        , epiphany: t
        , version: getFirstMatch(/(?:epiphany)[\s\/](\d+(?:\.\d+)+)/i)
      }
    }
    else if (/puffin/i.test(ua)) {
      result = {
        name: 'Puffin'
        , puffin: t
        , version: getFirstMatch(/(?:puffin)[\s\/](\d+(?:\.\d+)?)/i)
      }
    }
    else if (/sleipnir/i.test(ua)) {
      result = {
        name: 'Sleipnir'
        , sleipnir: t
        , version: getFirstMatch(/(?:sleipnir)[\s\/](\d+(?:\.\d+)+)/i)
      }
    }
    else if (/k-meleon/i.test(ua)) {
      result = {
        name: 'K-Meleon'
        , kMeleon: t
        , version: getFirstMatch(/(?:k-meleon)[\s\/](\d+(?:\.\d+)+)/i)
      }
    }
    else if (windowsphone) {
      result = {
        name: 'Windows Phone'
      , osname: 'Windows Phone'
      , windowsphone: t
      }
      if (edgeVersion) {
        result.msedge = t
        result.version = edgeVersion
      }
      else {
        result.msie = t
        result.version = getFirstMatch(/iemobile\/(\d+(\.\d+)?)/i)
      }
    }
    else if (/msie|trident/i.test(ua)) {
      result = {
        name: 'Internet Explorer'
      , msie: t
      , version: getFirstMatch(/(?:msie |rv:)(\d+(\.\d+)?)/i)
      }
    } else if (chromeos) {
      result = {
        name: 'Chrome'
      , osname: 'Chrome OS'
      , chromeos: t
      , chromeBook: t
      , chrome: t
      , version: getFirstMatch(/(?:chrome|crios|crmo)\/(\d+(\.\d+)?)/i)
      }
    } else if (/edg([ea]|ios)/i.test(ua)) {
      result = {
        name: 'Microsoft Edge'
      , msedge: t
      , version: edgeVersion
      }
    }
    else if (/vivaldi/i.test(ua)) {
      result = {
        name: 'Vivaldi'
        , vivaldi: t
        , version: getFirstMatch(/vivaldi\/(\d+(\.\d+)?)/i) || versionIdentifier
      }
    }
    else if (sailfish) {
      result = {
        name: 'Sailfish'
      , osname: 'Sailfish OS'
      , sailfish: t
      , version: getFirstMatch(/sailfish\s?browser\/(\d+(\.\d+)?)/i)
      }
    }
    else if (/seamonkey\//i.test(ua)) {
      result = {
        name: 'SeaMonkey'
      , seamonkey: t
      , version: getFirstMatch(/seamonkey\/(\d+(\.\d+)?)/i)
      }
    }
    else if (/firefox|iceweasel|fxios/i.test(ua)) {
      result = {
        name: 'Firefox'
      , firefox: t
      , version: getFirstMatch(/(?:firefox|iceweasel|fxios)[ \/](\d+(\.\d+)?)/i)
      }
      if (/\((mobile|tablet);[^\)]*rv:[\d\.]+\)/i.test(ua)) {
        result.firefoxos = t
        result.osname = 'Firefox OS'
      }
    }
    else if (silk) {
      result =  {
        name: 'Amazon Silk'
      , silk: t
      , version : getFirstMatch(/silk\/(\d+(\.\d+)?)/i)
      }
    }
    else if (/phantom/i.test(ua)) {
      result = {
        name: 'PhantomJS'
      , phantom: t
      , version: getFirstMatch(/phantomjs\/(\d+(\.\d+)?)/i)
      }
    }
    else if (/slimerjs/i.test(ua)) {
      result = {
        name: 'SlimerJS'
        , slimer: t
        , version: getFirstMatch(/slimerjs\/(\d+(\.\d+)?)/i)
      }
    }
    else if (/blackberry|\bbb\d+/i.test(ua) || /rim\stablet/i.test(ua)) {
      result = {
        name: 'BlackBerry'
      , osname: 'BlackBerry OS'
      , blackberry: t
      , version: versionIdentifier || getFirstMatch(/blackberry[\d]+\/(\d+(\.\d+)?)/i)
      }
    }
    else if (webos) {
      result = {
        name: 'WebOS'
      , osname: 'WebOS'
      , webos: t
      , version: versionIdentifier || getFirstMatch(/w(?:eb)?osbrowser\/(\d+(\.\d+)?)/i)
      };
      /touchpad\//i.test(ua) && (result.touchpad = t)
    }
    else if (/bada/i.test(ua)) {
      result = {
        name: 'Bada'
      , osname: 'Bada'
      , bada: t
      , version: getFirstMatch(/dolfin\/(\d+(\.\d+)?)/i)
      };
    }
    else if (tizen) {
      result = {
        name: 'Tizen'
      , osname: 'Tizen'
      , tizen: t
      , version: getFirstMatch(/(?:tizen\s?)?browser\/(\d+(\.\d+)?)/i) || versionIdentifier
      };
    }
    else if (/qupzilla/i.test(ua)) {
      result = {
        name: 'QupZilla'
        , qupzilla: t
        , version: getFirstMatch(/(?:qupzilla)[\s\/](\d+(?:\.\d+)+)/i) || versionIdentifier
      }
    }
    else if (/chromium/i.test(ua)) {
      result = {
        name: 'Chromium'
        , chromium: t
        , version: getFirstMatch(/(?:chromium)[\s\/](\d+(?:\.\d+)?)/i) || versionIdentifier
      }
    }
    else if (/chrome|crios|crmo/i.test(ua)) {
      result = {
        name: 'Chrome'
        , chrome: t
        , version: getFirstMatch(/(?:chrome|crios|crmo)\/(\d+(\.\d+)?)/i)
      }
    }
    else if (android) {
      result = {
        name: 'Android'
        , version: versionIdentifier
      }
    }
    else if (/safari|applewebkit/i.test(ua)) {
      result = {
        name: 'Safari'
      , safari: t
      }
      if (versionIdentifier) {
        result.version = versionIdentifier
      }
    }
    else if (iosdevice) {
      result = {
        name : iosdevice == 'iphone' ? 'iPhone' : iosdevice == 'ipad' ? 'iPad' : 'iPod'
      }
      // WTF: version is not part of user agent in web apps
      if (versionIdentifier) {
        result.version = versionIdentifier
      }
    }
    else if(/googlebot/i.test(ua)) {
      result = {
        name: 'Googlebot'
      , googlebot: t
      , version: getFirstMatch(/googlebot\/(\d+(\.\d+))/i) || versionIdentifier
      }
    }
    else {
      result = {
        name: getFirstMatch(/^(.*)\/(.*) /),
        version: getSecondMatch(/^(.*)\/(.*) /)
     };
   }

    // set webkit or gecko flag for browsers based on these engines
    if (!result.msedge && /(apple)?webkit/i.test(ua)) {
      if (/(apple)?webkit\/537\.36/i.test(ua)) {
        result.name = result.name || "Blink"
        result.blink = t
      } else {
        result.name = result.name || "Webkit"
        result.webkit = t
      }
      if (!result.version && versionIdentifier) {
        result.version = versionIdentifier
      }
    } else if (!result.opera && /gecko\//i.test(ua)) {
      result.name = result.name || "Gecko"
      result.gecko = t
      result.version = result.version || getFirstMatch(/gecko\/(\d+(\.\d+)?)/i)
    }

    // set OS flags for platforms that have multiple browsers
    if (!result.windowsphone && (android || result.silk)) {
      result.android = t
      result.osname = 'Android'
    } else if (!result.windowsphone && iosdevice) {
      result[iosdevice] = t
      result.ios = t
      result.osname = 'iOS'
    } else if (mac) {
      result.mac = t
      result.osname = 'macOS'
    } else if (xbox) {
      result.xbox = t
      result.osname = 'Xbox'
    } else if (windows) {
      result.windows = t
      result.osname = 'Windows'
    } else if (linux) {
      result.linux = t
      result.osname = 'Linux'
    }

    function getWindowsVersion (s) {
      switch (s) {
        case 'NT': return 'NT'
        case 'XP': return 'XP'
        case 'NT 5.0': return '2000'
        case 'NT 5.1': return 'XP'
        case 'NT 5.2': return '2003'
        case 'NT 6.0': return 'Vista'
        case 'NT 6.1': return '7'
        case 'NT 6.2': return '8'
        case 'NT 6.3': return '8.1'
        case 'NT 10.0': return '10'
        default: return undefined
      }
    }

    // OS version extraction
    var osVersion = '';
    if (result.windows) {
      osVersion = getWindowsVersion(getFirstMatch(/Windows ((NT|XP)( \d\d?.\d)?)/i))
    } else if (result.windowsphone) {
      osVersion = getFirstMatch(/windows phone (?:os)?\s?(\d+(\.\d+)*)/i);
    } else if (result.mac) {
      osVersion = getFirstMatch(/Mac OS X (\d+([_\.\s]\d+)*)/i);
      osVersion = osVersion.replace(/[_\s]/g, '.');
    } else if (iosdevice) {
      osVersion = getFirstMatch(/os (\d+([_\s]\d+)*) like mac os x/i);
      osVersion = osVersion.replace(/[_\s]/g, '.');
    } else if (android) {
      osVersion = getFirstMatch(/android[ \/-](\d+(\.\d+)*)/i);
    } else if (result.webos) {
      osVersion = getFirstMatch(/(?:web|hpw)os\/(\d+(\.\d+)*)/i);
    } else if (result.blackberry) {
      osVersion = getFirstMatch(/rim\stablet\sos\s(\d+(\.\d+)*)/i);
    } else if (result.bada) {
      osVersion = getFirstMatch(/bada\/(\d+(\.\d+)*)/i);
    } else if (result.tizen) {
      osVersion = getFirstMatch(/tizen[\/\s](\d+(\.\d+)*)/i);
    }
    if (osVersion) {
      result.osversion = osVersion;
    }

    // device type extraction
    var osMajorVersion = !result.windows && osVersion.split('.')[0];
    if (
         tablet
      || nexusTablet
      || iosdevice == 'ipad'
      || (android && (osMajorVersion == 3 || (osMajorVersion >= 4 && !mobile)))
      || result.silk
    ) {
      result.tablet = t
    } else if (
         mobile
      || iosdevice == 'iphone'
      || iosdevice == 'ipod'
      || android
      || nexusMobile
      || result.blackberry
      || result.webos
      || result.bada
    ) {
      result.mobile = t
    }

    // Graded Browser Support
    // http://developer.yahoo.com/yui/articles/gbs
    if (result.msedge ||
        (result.msie && result.version >= 10) ||
        (result.yandexbrowser && result.version >= 15) ||
		    (result.vivaldi && result.version >= 1.0) ||
        (result.chrome && result.version >= 20) ||
        (result.samsungBrowser && result.version >= 4) ||
        (result.whale && compareVersions([result.version, '1.0']) === 1) ||
        (result.mzbrowser && compareVersions([result.version, '6.0']) === 1) ||
        (result.focus && compareVersions([result.version, '1.0']) === 1) ||
        (result.firefox && result.version >= 20.0) ||
        (result.safari && result.version >= 6) ||
        (result.opera && result.version >= 10.0) ||
        (result.ios && result.osversion && result.osversion.split(".")[0] >= 6) ||
        (result.blackberry && result.version >= 10.1)
        || (result.chromium && result.version >= 20)
        ) {
      result.a = t;
    }
    else if ((result.msie && result.version < 10) ||
        (result.chrome && result.version < 20) ||
        (result.firefox && result.version < 20.0) ||
        (result.safari && result.version < 6) ||
        (result.opera && result.version < 10.0) ||
        (result.ios && result.osversion && result.osversion.split(".")[0] < 6)
        || (result.chromium && result.version < 20)
        ) {
      result.c = t
    } else result.x = t

    return result
  }

  var bowser = detect(typeof navigator !== 'undefined' ? navigator.userAgent || '' : '')

  bowser.test = function (browserList) {
    for (var i = 0; i < browserList.length; ++i) {
      var browserItem = browserList[i];
      if (typeof browserItem=== 'string') {
        if (browserItem in bowser) {
          return true;
        }
      }
    }
    return false;
  }

  /**
   * Get version precisions count
   *
   * @example
   *   getVersionPrecision("1.10.3") // 3
   *
   * @param  {string} version
   * @return {number}
   */
  function getVersionPrecision(version) {
    return version.split(".").length;
  }

  /**
   * Array::map polyfill
   *
   * @param  {Array} arr
   * @param  {Function} iterator
   * @return {Array}
   */
  function map(arr, iterator) {
    var result = [], i;
    if (Array.prototype.map) {
      return Array.prototype.map.call(arr, iterator);
    }
    for (i = 0; i < arr.length; i++) {
      result.push(iterator(arr[i]));
    }
    return result;
  }

  /**
   * Calculate browser version weight
   *
   * @example
   *   compareVersions(['1.10.2.1',  '1.8.2.1.90'])    // 1
   *   compareVersions(['1.010.2.1', '1.09.2.1.90']);  // 1
   *   compareVersions(['1.10.2.1',  '1.10.2.1']);     // 0
   *   compareVersions(['1.10.2.1',  '1.0800.2']);     // -1
   *
   * @param  {Array<String>} versions versions to compare
   * @return {Number} comparison result
   */
  function compareVersions(versions) {
    // 1) get common precision for both versions, for example for "10.0" and "9" it should be 2
    var precision = Math.max(getVersionPrecision(versions[0]), getVersionPrecision(versions[1]));
    var chunks = map(versions, function (version) {
      var delta = precision - getVersionPrecision(version);

      // 2) "9" -> "9.0" (for precision = 2)
      version = version + new Array(delta + 1).join(".0");

      // 3) "9.0" -> ["000000000"", "000000009"]
      return map(version.split("."), function (chunk) {
        return new Array(20 - chunk.length).join("0") + chunk;
      }).reverse();
    });

    // iterate in reverse order by reversed chunks array
    while (--precision >= 0) {
      // 4) compare: "000000009" > "000000010" = false (but "9" > "10" = true)
      if (chunks[0][precision] > chunks[1][precision]) {
        return 1;
      }
      else if (chunks[0][precision] === chunks[1][precision]) {
        if (precision === 0) {
          // all version chunks are same
          return 0;
        }
      }
      else {
        return -1;
      }
    }
  }

  /**
   * Check if browser is unsupported
   *
   * @example
   *   bowser.isUnsupportedBrowser({
   *     msie: "10",
   *     firefox: "23",
   *     chrome: "29",
   *     safari: "5.1",
   *     opera: "16",
   *     phantom: "534"
   *   });
   *
   * @param  {Object}  minVersions map of minimal version to browser
   * @param  {Boolean} [strictMode = false] flag to return false if browser wasn't found in map
   * @param  {String}  [ua] user agent string
   * @return {Boolean}
   */
  function isUnsupportedBrowser(minVersions, strictMode, ua) {
    var _bowser = bowser;

    // make strictMode param optional with ua param usage
    if (typeof strictMode === 'string') {
      ua = strictMode;
      strictMode = void(0);
    }

    if (strictMode === void(0)) {
      strictMode = false;
    }
    if (ua) {
      _bowser = detect(ua);
    }

    var version = "" + _bowser.version;
    for (var browser in minVersions) {
      if (minVersions.hasOwnProperty(browser)) {
        if (_bowser[browser]) {
          if (typeof minVersions[browser] !== 'string') {
            throw new Error('Browser version in the minVersion map should be a string: ' + browser + ': ' + String(minVersions));
          }

          // browser version and min supported version.
          return compareVersions([version, minVersions[browser]]) < 0;
        }
      }
    }

    return strictMode; // not found
  }

  /**
   * Check if browser is supported
   *
   * @param  {Object} minVersions map of minimal version to browser
   * @param  {Boolean} [strictMode = false] flag to return false if browser wasn't found in map
   * @param  {String}  [ua] user agent string
   * @return {Boolean}
   */
  function check(minVersions, strictMode, ua) {
    return !isUnsupportedBrowser(minVersions, strictMode, ua);
  }

  bowser.isUnsupportedBrowser = isUnsupportedBrowser;
  bowser.compareVersions = compareVersions;
  bowser.check = check;

  /*
   * Set our detect method to the main bowser object so we can
   * reuse it to test other user agents.
   * This is needed to implement future tests.
   */
  bowser._detect = detect;

  /*
   * Set our detect public method to the main bowser object
   * This is needed to implement bowser in server side
   */
  bowser.detect = detect;
  return bowser
});

},{}],79:[function(require,module,exports){

},{}],80:[function(require,module,exports){
(function (global){
var ClientRequest = require('./lib/request')
var response = require('./lib/response')
var extend = require('xtend')
var statusCodes = require('builtin-status-codes')
var url = require('url')

var http = exports

http.request = function (opts, cb) {
	if (typeof opts === 'string')
		opts = url.parse(opts)
	else
		opts = extend(opts)

	// Normally, the page is loaded from http or https, so not specifying a protocol
	// will result in a (valid) protocol-relative url. However, this won't work if
	// the protocol is something else, like 'file:'
	var defaultProtocol = global.location.protocol.search(/^https?:$/) === -1 ? 'http:' : ''

	var protocol = opts.protocol || defaultProtocol
	var host = opts.hostname || opts.host
	var port = opts.port
	var path = opts.path || '/'

	// Necessary for IPv6 addresses
	if (host && host.indexOf(':') !== -1)
		host = '[' + host + ']'

	// This may be a relative url. The browser should always be able to interpret it correctly.
	opts.url = (host ? (protocol + '//' + host) : '') + (port ? ':' + port : '') + path
	opts.method = (opts.method || 'GET').toUpperCase()
	opts.headers = opts.headers || {}

	// Also valid opts.auth, opts.mode

	var req = new ClientRequest(opts)
	if (cb)
		req.on('response', cb)
	return req
}

http.get = function get (opts, cb) {
	var req = http.request(opts, cb)
	req.end()
	return req
}

http.ClientRequest = ClientRequest
http.IncomingMessage = response.IncomingMessage

http.Agent = function () {}
http.Agent.defaultMaxSockets = 4

http.globalAgent = new http.Agent()

http.STATUS_CODES = statusCodes

http.METHODS = [
	'CHECKOUT',
	'CONNECT',
	'COPY',
	'DELETE',
	'GET',
	'HEAD',
	'LOCK',
	'M-SEARCH',
	'MERGE',
	'MKACTIVITY',
	'MKCOL',
	'MOVE',
	'NOTIFY',
	'OPTIONS',
	'PATCH',
	'POST',
	'PROPFIND',
	'PROPPATCH',
	'PURGE',
	'PUT',
	'REPORT',
	'SEARCH',
	'SUBSCRIBE',
	'TRACE',
	'UNLOCK',
	'UNSUBSCRIBE'
]
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./lib/request":82,"./lib/response":83,"builtin-status-codes":100,"url":393,"xtend":385}],81:[function(require,module,exports){
(function (global){
exports.fetch = isFunction(global.fetch) && isFunction(global.ReadableStream)

exports.writableStream = isFunction(global.WritableStream)

exports.abortController = isFunction(global.AbortController)

// The xhr request to example.com may violate some restrictive CSP configurations,
// so if we're running in a browser that supports `fetch`, avoid calling getXHR()
// and assume support for certain features below.
var xhr
function getXHR () {
	// Cache the xhr value
	if (xhr !== undefined) return xhr

	if (global.XMLHttpRequest) {
		xhr = new global.XMLHttpRequest()
		// If XDomainRequest is available (ie only, where xhr might not work
		// cross domain), use the page location. Otherwise use example.com
		// Note: this doesn't actually make an http request.
		try {
			xhr.open('GET', global.XDomainRequest ? '/' : 'https://example.com')
		} catch(e) {
			xhr = null
		}
	} else {
		// Service workers don't have XHR
		xhr = null
	}
	return xhr
}

function checkTypeSupport (type) {
	var xhr = getXHR()
	if (!xhr) return false
	try {
		xhr.responseType = type
		return xhr.responseType === type
	} catch (e) {}
	return false
}

// If fetch is supported, then arraybuffer will be supported too. Skip calling
// checkTypeSupport(), since that calls getXHR().
exports.arraybuffer = exports.fetch || checkTypeSupport('arraybuffer')

// These next two tests unavoidably show warnings in Chrome. Since fetch will always
// be used if it's available, just return false for these to avoid the warnings.
exports.msstream = !exports.fetch && checkTypeSupport('ms-stream')
exports.mozchunkedarraybuffer = !exports.fetch && checkTypeSupport('moz-chunked-arraybuffer')

// If fetch is supported, then overrideMimeType will be supported too. Skip calling
// getXHR().
exports.overrideMimeType = exports.fetch || (getXHR() ? isFunction(getXHR().overrideMimeType) : false)

function isFunction (value) {
	return typeof value === 'function'
}

xhr = null // Help gc

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],82:[function(require,module,exports){
(function (process,global,Buffer){
var capability = require('./capability')
var inherits = require('inherits')
var response = require('./response')
var stream = require('readable-stream')

var IncomingMessage = response.IncomingMessage
var rStates = response.readyStates

function decideMode (preferBinary, useFetch) {
	if (capability.fetch && useFetch) {
		return 'fetch'
	} else if (capability.mozchunkedarraybuffer) {
		return 'moz-chunked-arraybuffer'
	} else if (capability.msstream) {
		return 'ms-stream'
	} else if (capability.arraybuffer && preferBinary) {
		return 'arraybuffer'
	} else {
		return 'text'
	}
}

var ClientRequest = module.exports = function (opts) {
	var self = this
	stream.Writable.call(self)

	self._opts = opts
	self._body = []
	self._headers = {}
	if (opts.auth)
		self.setHeader('Authorization', 'Basic ' + Buffer.from(opts.auth).toString('base64'))
	Object.keys(opts.headers).forEach(function (name) {
		self.setHeader(name, opts.headers[name])
	})

	var preferBinary
	var useFetch = true
	if (opts.mode === 'disable-fetch' || ('requestTimeout' in opts && !capability.abortController)) {
		// If the use of XHR should be preferred. Not typically needed.
		useFetch = false
		preferBinary = true
	} else if (opts.mode === 'prefer-streaming') {
		// If streaming is a high priority but binary compatibility and
		// the accuracy of the 'content-type' header aren't
		preferBinary = false
	} else if (opts.mode === 'allow-wrong-content-type') {
		// If streaming is more important than preserving the 'content-type' header
		preferBinary = !capability.overrideMimeType
	} else if (!opts.mode || opts.mode === 'default' || opts.mode === 'prefer-fast') {
		// Use binary if text streaming may corrupt data or the content-type header, or for speed
		preferBinary = true
	} else {
		throw new Error('Invalid value for opts.mode')
	}
	self._mode = decideMode(preferBinary, useFetch)
	self._fetchTimer = null

	self.on('finish', function () {
		self._onFinish()
	})
}

inherits(ClientRequest, stream.Writable)

ClientRequest.prototype.setHeader = function (name, value) {
	var self = this
	var lowerName = name.toLowerCase()
	// This check is not necessary, but it prevents warnings from browsers about setting unsafe
	// headers. To be honest I'm not entirely sure hiding these warnings is a good thing, but
	// http-browserify did it, so I will too.
	if (unsafeHeaders.indexOf(lowerName) !== -1)
		return

	self._headers[lowerName] = {
		name: name,
		value: value
	}
}

ClientRequest.prototype.getHeader = function (name) {
	var header = this._headers[name.toLowerCase()]
	if (header)
		return header.value
	return null
}

ClientRequest.prototype.removeHeader = function (name) {
	var self = this
	delete self._headers[name.toLowerCase()]
}

ClientRequest.prototype._onFinish = function () {
	var self = this

	if (self._destroyed)
		return
	var opts = self._opts

	var headersObj = self._headers
	var body = null
	if (opts.method !== 'GET' && opts.method !== 'HEAD') {
        body = new Blob(self._body, {
            type: (headersObj['content-type'] || {}).value || ''
        });
    }

	// create flattened list of headers
	var headersList = []
	Object.keys(headersObj).forEach(function (keyName) {
		var name = headersObj[keyName].name
		var value = headersObj[keyName].value
		if (Array.isArray(value)) {
			value.forEach(function (v) {
				headersList.push([name, v])
			})
		} else {
			headersList.push([name, value])
		}
	})

	if (self._mode === 'fetch') {
		var signal = null
		if (capability.abortController) {
			var controller = new AbortController()
			signal = controller.signal
			self._fetchAbortController = controller

			if ('requestTimeout' in opts && opts.requestTimeout !== 0) {
				self._fetchTimer = global.setTimeout(function () {
					self.emit('requestTimeout')
					if (self._fetchAbortController)
						self._fetchAbortController.abort()
				}, opts.requestTimeout)
			}
		}

		global.fetch(self._opts.url, {
			method: self._opts.method,
			headers: headersList,
			body: body || undefined,
			mode: 'cors',
			credentials: opts.withCredentials ? 'include' : 'same-origin',
			signal: signal
		}).then(function (response) {
			self._fetchResponse = response
			self._connect()
		}, function (reason) {
			global.clearTimeout(self._fetchTimer)
			if (!self._destroyed)
				self.emit('error', reason)
		})
	} else {
		var xhr = self._xhr = new global.XMLHttpRequest()
		try {
			xhr.open(self._opts.method, self._opts.url, true)
		} catch (err) {
			process.nextTick(function () {
				self.emit('error', err)
			})
			return
		}

		// Can't set responseType on really old browsers
		if ('responseType' in xhr)
			xhr.responseType = self._mode

		if ('withCredentials' in xhr)
			xhr.withCredentials = !!opts.withCredentials

		if (self._mode === 'text' && 'overrideMimeType' in xhr)
			xhr.overrideMimeType('text/plain; charset=x-user-defined')

		if ('requestTimeout' in opts) {
			xhr.timeout = opts.requestTimeout
			xhr.ontimeout = function () {
				self.emit('requestTimeout')
			}
		}

		headersList.forEach(function (header) {
			xhr.setRequestHeader(header[0], header[1])
		})

		self._response = null
		xhr.onreadystatechange = function () {
			switch (xhr.readyState) {
				case rStates.LOADING:
				case rStates.DONE:
					self._onXHRProgress()
					break
			}
		}
		// Necessary for streaming in Firefox, since xhr.response is ONLY defined
		// in onprogress, not in onreadystatechange with xhr.readyState = 3
		if (self._mode === 'moz-chunked-arraybuffer') {
			xhr.onprogress = function () {
				self._onXHRProgress()
			}
		}

		xhr.onerror = function () {
			if (self._destroyed)
				return
			self.emit('error', new Error('XHR error'))
		}

		try {
			xhr.send(body)
		} catch (err) {
			process.nextTick(function () {
				self.emit('error', err)
			})
			return
		}
	}
}

/**
 * Checks if xhr.status is readable and non-zero, indicating no error.
 * Even though the spec says it should be available in readyState 3,
 * accessing it throws an exception in IE8
 */
function statusValid (xhr) {
	try {
		var status = xhr.status
		return (status !== null && status !== 0)
	} catch (e) {
		return false
	}
}

ClientRequest.prototype._onXHRProgress = function () {
	var self = this

	if (!statusValid(self._xhr) || self._destroyed)
		return

	if (!self._response)
		self._connect()

	self._response._onXHRProgress()
}

ClientRequest.prototype._connect = function () {
	var self = this

	if (self._destroyed)
		return

	self._response = new IncomingMessage(self._xhr, self._fetchResponse, self._mode, self._fetchTimer)
	self._response.on('error', function(err) {
		self.emit('error', err)
	})

	self.emit('response', self._response)
}

ClientRequest.prototype._write = function (chunk, encoding, cb) {
	var self = this

	self._body.push(chunk)
	cb()
}

ClientRequest.prototype.abort = ClientRequest.prototype.destroy = function () {
	var self = this
	self._destroyed = true
	global.clearTimeout(self._fetchTimer)
	if (self._response)
		self._response._destroyed = true
	if (self._xhr)
		self._xhr.abort()
	else if (self._fetchAbortController)
		self._fetchAbortController.abort()
}

ClientRequest.prototype.end = function (data, encoding, cb) {
	var self = this
	if (typeof data === 'function') {
		cb = data
		data = undefined
	}

	stream.Writable.prototype.end.call(self, data, encoding, cb)
}

ClientRequest.prototype.flushHeaders = function () {}
ClientRequest.prototype.setTimeout = function () {}
ClientRequest.prototype.setNoDelay = function () {}
ClientRequest.prototype.setSocketKeepAlive = function () {}

// Taken from http://www.w3.org/TR/XMLHttpRequest/#the-setrequestheader%28%29-method
var unsafeHeaders = [
	'accept-charset',
	'accept-encoding',
	'access-control-request-headers',
	'access-control-request-method',
	'connection',
	'content-length',
	'cookie',
	'cookie2',
	'date',
	'dnt',
	'expect',
	'host',
	'keep-alive',
	'origin',
	'referer',
	'te',
	'trailer',
	'transfer-encoding',
	'upgrade',
	'via'
]

}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("buffer").Buffer)
},{"./capability":81,"./response":83,"_process":392,"buffer":99,"inherits":306,"readable-stream":98}],83:[function(require,module,exports){
(function (process,global,Buffer){
var capability = require('./capability')
var inherits = require('inherits')
var stream = require('readable-stream')

var rStates = exports.readyStates = {
	UNSENT: 0,
	OPENED: 1,
	HEADERS_RECEIVED: 2,
	LOADING: 3,
	DONE: 4
}

var IncomingMessage = exports.IncomingMessage = function (xhr, response, mode, fetchTimer) {
	var self = this
	stream.Readable.call(self)

	self._mode = mode
	self.headers = {}
	self.rawHeaders = []
	self.trailers = {}
	self.rawTrailers = []

	// Fake the 'close' event, but only once 'end' fires
	self.on('end', function () {
		// The nextTick is necessary to prevent the 'request' module from causing an infinite loop
		process.nextTick(function () {
			self.emit('close')
		})
	})

	if (mode === 'fetch') {
		self._fetchResponse = response

		self.url = response.url
		self.statusCode = response.status
		self.statusMessage = response.statusText
		
		response.headers.forEach(function (header, key){
			self.headers[key.toLowerCase()] = header
			self.rawHeaders.push(key, header)
		})

		if (capability.writableStream) {
			var writable = new WritableStream({
				write: function (chunk) {
					return new Promise(function (resolve, reject) {
						if (self._destroyed) {
							reject()
						} else if(self.push(Buffer.from(chunk))) {
							resolve()
						} else {
							self._resumeFetch = resolve
						}
					})
				},
				close: function () {
					global.clearTimeout(fetchTimer)
					if (!self._destroyed)
						self.push(null)
				},
				abort: function (err) {
					if (!self._destroyed)
						self.emit('error', err)
				}
			})

			try {
				response.body.pipeTo(writable).catch(function (err) {
					global.clearTimeout(fetchTimer)
					if (!self._destroyed)
						self.emit('error', err)
				})
				return
			} catch (e) {} // pipeTo method isn't defined. Can't find a better way to feature test this
		}
		// fallback for when writableStream or pipeTo aren't available
		var reader = response.body.getReader()
		function read () {
			reader.read().then(function (result) {
				if (self._destroyed)
					return
				if (result.done) {
					global.clearTimeout(fetchTimer)
					self.push(null)
					return
				}
				self.push(Buffer.from(result.value))
				read()
			}).catch(function (err) {
				global.clearTimeout(fetchTimer)
				if (!self._destroyed)
					self.emit('error', err)
			})
		}
		read()
	} else {
		self._xhr = xhr
		self._pos = 0

		self.url = xhr.responseURL
		self.statusCode = xhr.status
		self.statusMessage = xhr.statusText
		var headers = xhr.getAllResponseHeaders().split(/\r?\n/)
		headers.forEach(function (header) {
			var matches = header.match(/^([^:]+):\s*(.*)/)
			if (matches) {
				var key = matches[1].toLowerCase()
				if (key === 'set-cookie') {
					if (self.headers[key] === undefined) {
						self.headers[key] = []
					}
					self.headers[key].push(matches[2])
				} else if (self.headers[key] !== undefined) {
					self.headers[key] += ', ' + matches[2]
				} else {
					self.headers[key] = matches[2]
				}
				self.rawHeaders.push(matches[1], matches[2])
			}
		})

		self._charset = 'x-user-defined'
		if (!capability.overrideMimeType) {
			var mimeType = self.rawHeaders['mime-type']
			if (mimeType) {
				var charsetMatch = mimeType.match(/;\s*charset=([^;])(;|$)/)
				if (charsetMatch) {
					self._charset = charsetMatch[1].toLowerCase()
				}
			}
			if (!self._charset)
				self._charset = 'utf-8' // best guess
		}
	}
}

inherits(IncomingMessage, stream.Readable)

IncomingMessage.prototype._read = function () {
	var self = this

	var resolve = self._resumeFetch
	if (resolve) {
		self._resumeFetch = null
		resolve()
	}
}

IncomingMessage.prototype._onXHRProgress = function () {
	var self = this

	var xhr = self._xhr

	var response = null
	switch (self._mode) {
		case 'text':
			response = xhr.responseText
			if (response.length > self._pos) {
				var newData = response.substr(self._pos)
				if (self._charset === 'x-user-defined') {
					var buffer = Buffer.alloc(newData.length)
					for (var i = 0; i < newData.length; i++)
						buffer[i] = newData.charCodeAt(i) & 0xff

					self.push(buffer)
				} else {
					self.push(newData, self._charset)
				}
				self._pos = response.length
			}
			break
		case 'arraybuffer':
			if (xhr.readyState !== rStates.DONE || !xhr.response)
				break
			response = xhr.response
			self.push(Buffer.from(new Uint8Array(response)))
			break
		case 'moz-chunked-arraybuffer': // take whole
			response = xhr.response
			if (xhr.readyState !== rStates.LOADING || !response)
				break
			self.push(Buffer.from(new Uint8Array(response)))
			break
		case 'ms-stream':
			response = xhr.response
			if (xhr.readyState !== rStates.LOADING)
				break
			var reader = new global.MSStreamReader()
			reader.onprogress = function () {
				if (reader.result.byteLength > self._pos) {
					self.push(Buffer.from(new Uint8Array(reader.result.slice(self._pos))))
					self._pos = reader.result.byteLength
				}
			}
			reader.onload = function () {
				self.push(null)
			}
			// reader.onerror = ??? // TODO: this
			reader.readAsArrayBuffer(response)
			break
	}

	// The ms-stream case handles end separately in reader.onload()
	if (self._xhr.readyState === rStates.DONE && self._mode !== 'ms-stream') {
		self.push(null)
	}
}

}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("buffer").Buffer)
},{"./capability":81,"_process":392,"buffer":99,"inherits":306,"readable-stream":98}],84:[function(require,module,exports){
'use strict';

function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }

var codes = {};

function createErrorType(code, message, Base) {
  if (!Base) {
    Base = Error;
  }

  function getMessage(arg1, arg2, arg3) {
    if (typeof message === 'string') {
      return message;
    } else {
      return message(arg1, arg2, arg3);
    }
  }

  var NodeError =
  /*#__PURE__*/
  function (_Base) {
    _inheritsLoose(NodeError, _Base);

    function NodeError(arg1, arg2, arg3) {
      return _Base.call(this, getMessage(arg1, arg2, arg3)) || this;
    }

    return NodeError;
  }(Base);

  NodeError.prototype.name = Base.name;
  NodeError.prototype.code = code;
  codes[code] = NodeError;
} // https://github.com/nodejs/node/blob/v10.8.0/lib/internal/errors.js


function oneOf(expected, thing) {
  if (Array.isArray(expected)) {
    var len = expected.length;
    expected = expected.map(function (i) {
      return String(i);
    });

    if (len > 2) {
      return "one of ".concat(thing, " ").concat(expected.slice(0, len - 1).join(', '), ", or ") + expected[len - 1];
    } else if (len === 2) {
      return "one of ".concat(thing, " ").concat(expected[0], " or ").concat(expected[1]);
    } else {
      return "of ".concat(thing, " ").concat(expected[0]);
    }
  } else {
    return "of ".concat(thing, " ").concat(String(expected));
  }
} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith


function startsWith(str, search, pos) {
  return str.substr(!pos || pos < 0 ? 0 : +pos, search.length) === search;
} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith


function endsWith(str, search, this_len) {
  if (this_len === undefined || this_len > str.length) {
    this_len = str.length;
  }

  return str.substring(this_len - search.length, this_len) === search;
} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes


function includes(str, search, start) {
  if (typeof start !== 'number') {
    start = 0;
  }

  if (start + search.length > str.length) {
    return false;
  } else {
    return str.indexOf(search, start) !== -1;
  }
}

createErrorType('ERR_INVALID_OPT_VALUE', function (name, value) {
  return 'The value "' + value + '" is invalid for option "' + name + '"';
}, TypeError);
createErrorType('ERR_INVALID_ARG_TYPE', function (name, expected, actual) {
  // determiner: 'must be' or 'must not be'
  var determiner;

  if (typeof expected === 'string' && startsWith(expected, 'not ')) {
    determiner = 'must not be';
    expected = expected.replace(/^not /, '');
  } else {
    determiner = 'must be';
  }

  var msg;

  if (endsWith(name, ' argument')) {
    // For cases like 'first argument'
    msg = "The ".concat(name, " ").concat(determiner, " ").concat(oneOf(expected, 'type'));
  } else {
    var type = includes(name, '.') ? 'property' : 'argument';
    msg = "The \"".concat(name, "\" ").concat(type, " ").concat(determiner, " ").concat(oneOf(expected, 'type'));
  }

  msg += ". Received type ".concat(typeof actual);
  return msg;
}, TypeError);
createErrorType('ERR_STREAM_PUSH_AFTER_EOF', 'stream.push() after EOF');
createErrorType('ERR_METHOD_NOT_IMPLEMENTED', function (name) {
  return 'The ' + name + ' method is not implemented';
});
createErrorType('ERR_STREAM_PREMATURE_CLOSE', 'Premature close');
createErrorType('ERR_STREAM_DESTROYED', function (name) {
  return 'Cannot call ' + name + ' after a stream was destroyed';
});
createErrorType('ERR_MULTIPLE_CALLBACK', 'Callback called multiple times');
createErrorType('ERR_STREAM_CANNOT_PIPE', 'Cannot pipe, not readable');
createErrorType('ERR_STREAM_WRITE_AFTER_END', 'write after end');
createErrorType('ERR_STREAM_NULL_VALUES', 'May not write null values to stream', TypeError);
createErrorType('ERR_UNKNOWN_ENCODING', function (arg) {
  return 'Unknown encoding: ' + arg;
}, TypeError);
createErrorType('ERR_STREAM_UNSHIFT_AFTER_END_EVENT', 'stream.unshift() after end event');
module.exports.codes = codes;

},{}],85:[function(require,module,exports){
(function (process){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
// a duplex stream is just a stream that is both readable and writable.
// Since JS doesn't have multiple prototypal inheritance, this class
// prototypally inherits from Readable, and then parasitically from
// Writable.
'use strict';
/*<replacement>*/

var objectKeys = Object.keys || function (obj) {
  var keys = [];

  for (var key in obj) {
    keys.push(key);
  }

  return keys;
};
/*</replacement>*/


module.exports = Duplex;

var Readable = require('./_stream_readable');

var Writable = require('./_stream_writable');

require('inherits')(Duplex, Readable);

{
  // Allow the keys array to be GC'ed.
  var keys = objectKeys(Writable.prototype);

  for (var v = 0; v < keys.length; v++) {
    var method = keys[v];
    if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
  }
}

function Duplex(options) {
  if (!(this instanceof Duplex)) return new Duplex(options);
  Readable.call(this, options);
  Writable.call(this, options);
  this.allowHalfOpen = true;

  if (options) {
    if (options.readable === false) this.readable = false;
    if (options.writable === false) this.writable = false;

    if (options.allowHalfOpen === false) {
      this.allowHalfOpen = false;
      this.once('end', onend);
    }
  }
}

Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._writableState.highWaterMark;
  }
});
Object.defineProperty(Duplex.prototype, 'writableBuffer', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._writableState && this._writableState.getBuffer();
  }
});
Object.defineProperty(Duplex.prototype, 'writableLength', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._writableState.length;
  }
}); // the no-half-open enforcer

function onend() {
  // If the writable side ended, then we're ok.
  if (this._writableState.ended) return; // no more data can be written.
  // But allow more writes to happen in this tick.

  process.nextTick(onEndNT, this);
}

function onEndNT(self) {
  self.end();
}

Object.defineProperty(Duplex.prototype, 'destroyed', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    if (this._readableState === undefined || this._writableState === undefined) {
      return false;
    }

    return this._readableState.destroyed && this._writableState.destroyed;
  },
  set: function set(value) {
    // we ignore the value if the stream
    // has not been initialized yet
    if (this._readableState === undefined || this._writableState === undefined) {
      return;
    } // backward compatibility, the user is explicitly
    // managing destroyed


    this._readableState.destroyed = value;
    this._writableState.destroyed = value;
  }
});
}).call(this,require('_process'))
},{"./_stream_readable":87,"./_stream_writable":89,"_process":392,"inherits":306}],86:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
// a passthrough stream.
// basically just the most minimal sort of Transform stream.
// Every written chunk gets output as-is.
'use strict';

module.exports = PassThrough;

var Transform = require('./_stream_transform');

require('inherits')(PassThrough, Transform);

function PassThrough(options) {
  if (!(this instanceof PassThrough)) return new PassThrough(options);
  Transform.call(this, options);
}

PassThrough.prototype._transform = function (chunk, encoding, cb) {
  cb(null, chunk);
};
},{"./_stream_transform":88,"inherits":306}],87:[function(require,module,exports){
(function (process,global){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';

module.exports = Readable;
/*<replacement>*/

var Duplex;
/*</replacement>*/

Readable.ReadableState = ReadableState;
/*<replacement>*/

var EE = require('events').EventEmitter;

var EElistenerCount = function EElistenerCount(emitter, type) {
  return emitter.listeners(type).length;
};
/*</replacement>*/

/*<replacement>*/


var Stream = require('./internal/streams/stream');
/*</replacement>*/


var Buffer = require('buffer').Buffer;

var OurUint8Array = global.Uint8Array || function () {};

function _uint8ArrayToBuffer(chunk) {
  return Buffer.from(chunk);
}

function _isUint8Array(obj) {
  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
}
/*<replacement>*/


var debugUtil = require('util');

var debug;

if (debugUtil && debugUtil.debuglog) {
  debug = debugUtil.debuglog('stream');
} else {
  debug = function debug() {};
}
/*</replacement>*/


var BufferList = require('./internal/streams/buffer_list');

var destroyImpl = require('./internal/streams/destroy');

var _require = require('./internal/streams/state'),
    getHighWaterMark = _require.getHighWaterMark;

var _require$codes = require('../errors').codes,
    ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE,
    ERR_STREAM_PUSH_AFTER_EOF = _require$codes.ERR_STREAM_PUSH_AFTER_EOF,
    ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
    ERR_STREAM_UNSHIFT_AFTER_END_EVENT = _require$codes.ERR_STREAM_UNSHIFT_AFTER_END_EVENT; // Lazy loaded to improve the startup performance.


var StringDecoder;
var createReadableStreamAsyncIterator;
var from;

require('inherits')(Readable, Stream);

var errorOrDestroy = destroyImpl.errorOrDestroy;
var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];

function prependListener(emitter, event, fn) {
  // Sadly this is not cacheable as some libraries bundle their own
  // event emitter implementation with them.
  if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn); // This is a hack to make sure that our error handler is attached before any
  // userland ones.  NEVER DO THIS. This is here only because this code needs
  // to continue to work with older versions of Node.js that do not include
  // the prependListener() method. The goal is to eventually remove this hack.

  if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (Array.isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
}

function ReadableState(options, stream, isDuplex) {
  Duplex = Duplex || require('./_stream_duplex');
  options = options || {}; // Duplex streams are both readable and writable, but share
  // the same options object.
  // However, some cases require setting options to different
  // values for the readable and the writable sides of the duplex stream.
  // These options can be provided separately as readableXXX and writableXXX.

  if (typeof isDuplex !== 'boolean') isDuplex = stream instanceof Duplex; // object stream flag. Used to make read(n) ignore n and to
  // make all the buffer merging and length checks go away

  this.objectMode = !!options.objectMode;
  if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode; // the point at which it stops calling _read() to fill the buffer
  // Note: 0 is a valid value, means "don't call _read preemptively ever"

  this.highWaterMark = getHighWaterMark(this, options, 'readableHighWaterMark', isDuplex); // A linked list is used to store data chunks instead of an array because the
  // linked list can remove elements from the beginning faster than
  // array.shift()

  this.buffer = new BufferList();
  this.length = 0;
  this.pipes = null;
  this.pipesCount = 0;
  this.flowing = null;
  this.ended = false;
  this.endEmitted = false;
  this.reading = false; // a flag to be able to tell if the event 'readable'/'data' is emitted
  // immediately, or on a later tick.  We set this to true at first, because
  // any actions that shouldn't happen until "later" should generally also
  // not happen before the first read call.

  this.sync = true; // whenever we return null, then we set a flag to say
  // that we're awaiting a 'readable' event emission.

  this.needReadable = false;
  this.emittedReadable = false;
  this.readableListening = false;
  this.resumeScheduled = false;
  this.paused = true; // Should close be emitted on destroy. Defaults to true.

  this.emitClose = options.emitClose !== false; // Should .destroy() be called after 'end' (and potentially 'finish')

  this.autoDestroy = !!options.autoDestroy; // has it been destroyed

  this.destroyed = false; // Crypto is kind of old and crusty.  Historically, its default string
  // encoding is 'binary' so we have to make this configurable.
  // Everything else in the universe uses 'utf8', though.

  this.defaultEncoding = options.defaultEncoding || 'utf8'; // the number of writers that are awaiting a drain event in .pipe()s

  this.awaitDrain = 0; // if true, a maybeReadMore has been scheduled

  this.readingMore = false;
  this.decoder = null;
  this.encoding = null;

  if (options.encoding) {
    if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
    this.decoder = new StringDecoder(options.encoding);
    this.encoding = options.encoding;
  }
}

function Readable(options) {
  Duplex = Duplex || require('./_stream_duplex');
  if (!(this instanceof Readable)) return new Readable(options); // Checking for a Stream.Duplex instance is faster here instead of inside
  // the ReadableState constructor, at least with V8 6.5

  var isDuplex = this instanceof Duplex;
  this._readableState = new ReadableState(options, this, isDuplex); // legacy

  this.readable = true;

  if (options) {
    if (typeof options.read === 'function') this._read = options.read;
    if (typeof options.destroy === 'function') this._destroy = options.destroy;
  }

  Stream.call(this);
}

Object.defineProperty(Readable.prototype, 'destroyed', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    if (this._readableState === undefined) {
      return false;
    }

    return this._readableState.destroyed;
  },
  set: function set(value) {
    // we ignore the value if the stream
    // has not been initialized yet
    if (!this._readableState) {
      return;
    } // backward compatibility, the user is explicitly
    // managing destroyed


    this._readableState.destroyed = value;
  }
});
Readable.prototype.destroy = destroyImpl.destroy;
Readable.prototype._undestroy = destroyImpl.undestroy;

Readable.prototype._destroy = function (err, cb) {
  cb(err);
}; // Manually shove something into the read() buffer.
// This returns true if the highWaterMark has not been hit yet,
// similar to how Writable.write() returns true if you should
// write() some more.


Readable.prototype.push = function (chunk, encoding) {
  var state = this._readableState;
  var skipChunkCheck;

  if (!state.objectMode) {
    if (typeof chunk === 'string') {
      encoding = encoding || state.defaultEncoding;

      if (encoding !== state.encoding) {
        chunk = Buffer.from(chunk, encoding);
        encoding = '';
      }

      skipChunkCheck = true;
    }
  } else {
    skipChunkCheck = true;
  }

  return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
}; // Unshift should *always* be something directly out of read()


Readable.prototype.unshift = function (chunk) {
  return readableAddChunk(this, chunk, null, true, false);
};

function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
  debug('readableAddChunk', chunk);
  var state = stream._readableState;

  if (chunk === null) {
    state.reading = false;
    onEofChunk(stream, state);
  } else {
    var er;
    if (!skipChunkCheck) er = chunkInvalid(state, chunk);

    if (er) {
      errorOrDestroy(stream, er);
    } else if (state.objectMode || chunk && chunk.length > 0) {
      if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
        chunk = _uint8ArrayToBuffer(chunk);
      }

      if (addToFront) {
        if (state.endEmitted) errorOrDestroy(stream, new ERR_STREAM_UNSHIFT_AFTER_END_EVENT());else addChunk(stream, state, chunk, true);
      } else if (state.ended) {
        errorOrDestroy(stream, new ERR_STREAM_PUSH_AFTER_EOF());
      } else if (state.destroyed) {
        return false;
      } else {
        state.reading = false;

        if (state.decoder && !encoding) {
          chunk = state.decoder.write(chunk);
          if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
        } else {
          addChunk(stream, state, chunk, false);
        }
      }
    } else if (!addToFront) {
      state.reading = false;
      maybeReadMore(stream, state);
    }
  } // We can push more data if we are below the highWaterMark.
  // Also, if we have no data yet, we can stand some more bytes.
  // This is to work around cases where hwm=0, such as the repl.


  return !state.ended && (state.length < state.highWaterMark || state.length === 0);
}

function addChunk(stream, state, chunk, addToFront) {
  if (state.flowing && state.length === 0 && !state.sync) {
    state.awaitDrain = 0;
    stream.emit('data', chunk);
  } else {
    // update the buffer info.
    state.length += state.objectMode ? 1 : chunk.length;
    if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
    if (state.needReadable) emitReadable(stream);
  }

  maybeReadMore(stream, state);
}

function chunkInvalid(state, chunk) {
  var er;

  if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
    er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer', 'Uint8Array'], chunk);
  }

  return er;
}

Readable.prototype.isPaused = function () {
  return this._readableState.flowing === false;
}; // backwards compatibility.


Readable.prototype.setEncoding = function (enc) {
  if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
  var decoder = new StringDecoder(enc);
  this._readableState.decoder = decoder; // If setEncoding(null), decoder.encoding equals utf8

  this._readableState.encoding = this._readableState.decoder.encoding; // Iterate over current buffer to convert already stored Buffers:

  var p = this._readableState.buffer.head;
  var content = '';

  while (p !== null) {
    content += decoder.write(p.data);
    p = p.next;
  }

  this._readableState.buffer.clear();

  if (content !== '') this._readableState.buffer.push(content);
  this._readableState.length = content.length;
  return this;
}; // Don't raise the hwm > 1GB


var MAX_HWM = 0x40000000;

function computeNewHighWaterMark(n) {
  if (n >= MAX_HWM) {
    // TODO(ronag): Throw ERR_VALUE_OUT_OF_RANGE.
    n = MAX_HWM;
  } else {
    // Get the next highest power of 2 to prevent increasing hwm excessively in
    // tiny amounts
    n--;
    n |= n >>> 1;
    n |= n >>> 2;
    n |= n >>> 4;
    n |= n >>> 8;
    n |= n >>> 16;
    n++;
  }

  return n;
} // This function is designed to be inlinable, so please take care when making
// changes to the function body.


function howMuchToRead(n, state) {
  if (n <= 0 || state.length === 0 && state.ended) return 0;
  if (state.objectMode) return 1;

  if (n !== n) {
    // Only flow one buffer at a time
    if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
  } // If we're asking for more than the current hwm, then raise the hwm.


  if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
  if (n <= state.length) return n; // Don't have enough

  if (!state.ended) {
    state.needReadable = true;
    return 0;
  }

  return state.length;
} // you can override either this method, or the async _read(n) below.


Readable.prototype.read = function (n) {
  debug('read', n);
  n = parseInt(n, 10);
  var state = this._readableState;
  var nOrig = n;
  if (n !== 0) state.emittedReadable = false; // if we're doing read(0) to trigger a readable event, but we
  // already have a bunch of data in the buffer, then just trigger
  // the 'readable' event and move on.

  if (n === 0 && state.needReadable && ((state.highWaterMark !== 0 ? state.length >= state.highWaterMark : state.length > 0) || state.ended)) {
    debug('read: emitReadable', state.length, state.ended);
    if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
    return null;
  }

  n = howMuchToRead(n, state); // if we've ended, and we're now clear, then finish it up.

  if (n === 0 && state.ended) {
    if (state.length === 0) endReadable(this);
    return null;
  } // All the actual chunk generation logic needs to be
  // *below* the call to _read.  The reason is that in certain
  // synthetic stream cases, such as passthrough streams, _read
  // may be a completely synchronous operation which may change
  // the state of the read buffer, providing enough data when
  // before there was *not* enough.
  //
  // So, the steps are:
  // 1. Figure out what the state of things will be after we do
  // a read from the buffer.
  //
  // 2. If that resulting state will trigger a _read, then call _read.
  // Note that this may be asynchronous, or synchronous.  Yes, it is
  // deeply ugly to write APIs this way, but that still doesn't mean
  // that the Readable class should behave improperly, as streams are
  // designed to be sync/async agnostic.
  // Take note if the _read call is sync or async (ie, if the read call
  // has returned yet), so that we know whether or not it's safe to emit
  // 'readable' etc.
  //
  // 3. Actually pull the requested chunks out of the buffer and return.
  // if we need a readable event, then we need to do some reading.


  var doRead = state.needReadable;
  debug('need readable', doRead); // if we currently have less than the highWaterMark, then also read some

  if (state.length === 0 || state.length - n < state.highWaterMark) {
    doRead = true;
    debug('length less than watermark', doRead);
  } // however, if we've ended, then there's no point, and if we're already
  // reading, then it's unnecessary.


  if (state.ended || state.reading) {
    doRead = false;
    debug('reading or ended', doRead);
  } else if (doRead) {
    debug('do read');
    state.reading = true;
    state.sync = true; // if the length is currently zero, then we *need* a readable event.

    if (state.length === 0) state.needReadable = true; // call internal read method

    this._read(state.highWaterMark);

    state.sync = false; // If _read pushed data synchronously, then `reading` will be false,
    // and we need to re-evaluate how much data we can return to the user.

    if (!state.reading) n = howMuchToRead(nOrig, state);
  }

  var ret;
  if (n > 0) ret = fromList(n, state);else ret = null;

  if (ret === null) {
    state.needReadable = state.length <= state.highWaterMark;
    n = 0;
  } else {
    state.length -= n;
    state.awaitDrain = 0;
  }

  if (state.length === 0) {
    // If we have nothing in the buffer, then we want to know
    // as soon as we *do* get something into the buffer.
    if (!state.ended) state.needReadable = true; // If we tried to read() past the EOF, then emit end on the next tick.

    if (nOrig !== n && state.ended) endReadable(this);
  }

  if (ret !== null) this.emit('data', ret);
  return ret;
};

function onEofChunk(stream, state) {
  debug('onEofChunk');
  if (state.ended) return;

  if (state.decoder) {
    var chunk = state.decoder.end();

    if (chunk && chunk.length) {
      state.buffer.push(chunk);
      state.length += state.objectMode ? 1 : chunk.length;
    }
  }

  state.ended = true;

  if (state.sync) {
    // if we are sync, wait until next tick to emit the data.
    // Otherwise we risk emitting data in the flow()
    // the readable code triggers during a read() call
    emitReadable(stream);
  } else {
    // emit 'readable' now to make sure it gets picked up.
    state.needReadable = false;

    if (!state.emittedReadable) {
      state.emittedReadable = true;
      emitReadable_(stream);
    }
  }
} // Don't emit readable right away in sync mode, because this can trigger
// another read() call => stack overflow.  This way, it might trigger
// a nextTick recursion warning, but that's not so bad.


function emitReadable(stream) {
  var state = stream._readableState;
  debug('emitReadable', state.needReadable, state.emittedReadable);
  state.needReadable = false;

  if (!state.emittedReadable) {
    debug('emitReadable', state.flowing);
    state.emittedReadable = true;
    process.nextTick(emitReadable_, stream);
  }
}

function emitReadable_(stream) {
  var state = stream._readableState;
  debug('emitReadable_', state.destroyed, state.length, state.ended);

  if (!state.destroyed && (state.length || state.ended)) {
    stream.emit('readable');
    state.emittedReadable = false;
  } // The stream needs another readable event if
  // 1. It is not flowing, as the flow mechanism will take
  //    care of it.
  // 2. It is not ended.
  // 3. It is below the highWaterMark, so we can schedule
  //    another readable later.


  state.needReadable = !state.flowing && !state.ended && state.length <= state.highWaterMark;
  flow(stream);
} // at this point, the user has presumably seen the 'readable' event,
// and called read() to consume some data.  that may have triggered
// in turn another _read(n) call, in which case reading = true if
// it's in progress.
// However, if we're not ended, or reading, and the length < hwm,
// then go ahead and try to read some more preemptively.


function maybeReadMore(stream, state) {
  if (!state.readingMore) {
    state.readingMore = true;
    process.nextTick(maybeReadMore_, stream, state);
  }
}

function maybeReadMore_(stream, state) {
  // Attempt to read more data if we should.
  //
  // The conditions for reading more data are (one of):
  // - Not enough data buffered (state.length < state.highWaterMark). The loop
  //   is responsible for filling the buffer with enough data if such data
  //   is available. If highWaterMark is 0 and we are not in the flowing mode
  //   we should _not_ attempt to buffer any extra data. We'll get more data
  //   when the stream consumer calls read() instead.
  // - No data in the buffer, and the stream is in flowing mode. In this mode
  //   the loop below is responsible for ensuring read() is called. Failing to
  //   call read here would abort the flow and there's no other mechanism for
  //   continuing the flow if the stream consumer has just subscribed to the
  //   'data' event.
  //
  // In addition to the above conditions to keep reading data, the following
  // conditions prevent the data from being read:
  // - The stream has ended (state.ended).
  // - There is already a pending 'read' operation (state.reading). This is a
  //   case where the the stream has called the implementation defined _read()
  //   method, but they are processing the call asynchronously and have _not_
  //   called push() with new data. In this case we skip performing more
  //   read()s. The execution ends in this method again after the _read() ends
  //   up calling push() with more data.
  while (!state.reading && !state.ended && (state.length < state.highWaterMark || state.flowing && state.length === 0)) {
    var len = state.length;
    debug('maybeReadMore read 0');
    stream.read(0);
    if (len === state.length) // didn't get any data, stop spinning.
      break;
  }

  state.readingMore = false;
} // abstract method.  to be overridden in specific implementation classes.
// call cb(er, data) where data is <= n in length.
// for virtual (non-string, non-buffer) streams, "length" is somewhat
// arbitrary, and perhaps not very meaningful.


Readable.prototype._read = function (n) {
  errorOrDestroy(this, new ERR_METHOD_NOT_IMPLEMENTED('_read()'));
};

Readable.prototype.pipe = function (dest, pipeOpts) {
  var src = this;
  var state = this._readableState;

  switch (state.pipesCount) {
    case 0:
      state.pipes = dest;
      break;

    case 1:
      state.pipes = [state.pipes, dest];
      break;

    default:
      state.pipes.push(dest);
      break;
  }

  state.pipesCount += 1;
  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
  var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
  var endFn = doEnd ? onend : unpipe;
  if (state.endEmitted) process.nextTick(endFn);else src.once('end', endFn);
  dest.on('unpipe', onunpipe);

  function onunpipe(readable, unpipeInfo) {
    debug('onunpipe');

    if (readable === src) {
      if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
        unpipeInfo.hasUnpiped = true;
        cleanup();
      }
    }
  }

  function onend() {
    debug('onend');
    dest.end();
  } // when the dest drains, it reduces the awaitDrain counter
  // on the source.  This would be more elegant with a .once()
  // handler in flow(), but adding and removing repeatedly is
  // too slow.


  var ondrain = pipeOnDrain(src);
  dest.on('drain', ondrain);
  var cleanedUp = false;

  function cleanup() {
    debug('cleanup'); // cleanup event handlers once the pipe is broken

    dest.removeListener('close', onclose);
    dest.removeListener('finish', onfinish);
    dest.removeListener('drain', ondrain);
    dest.removeListener('error', onerror);
    dest.removeListener('unpipe', onunpipe);
    src.removeListener('end', onend);
    src.removeListener('end', unpipe);
    src.removeListener('data', ondata);
    cleanedUp = true; // if the reader is waiting for a drain event from this
    // specific writer, then it would cause it to never start
    // flowing again.
    // So, if this is awaiting a drain, then we just call it now.
    // If we don't know, then assume that we are waiting for one.

    if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
  }

  src.on('data', ondata);

  function ondata(chunk) {
    debug('ondata');
    var ret = dest.write(chunk);
    debug('dest.write', ret);

    if (ret === false) {
      // If the user unpiped during `dest.write()`, it is possible
      // to get stuck in a permanently paused state if that write
      // also returned false.
      // => Check whether `dest` is still a piping destination.
      if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
        debug('false write response, pause', state.awaitDrain);
        state.awaitDrain++;
      }

      src.pause();
    }
  } // if the dest has an error, then stop piping into it.
  // however, don't suppress the throwing behavior for this.


  function onerror(er) {
    debug('onerror', er);
    unpipe();
    dest.removeListener('error', onerror);
    if (EElistenerCount(dest, 'error') === 0) errorOrDestroy(dest, er);
  } // Make sure our error handler is attached before userland ones.


  prependListener(dest, 'error', onerror); // Both close and finish should trigger unpipe, but only once.

  function onclose() {
    dest.removeListener('finish', onfinish);
    unpipe();
  }

  dest.once('close', onclose);

  function onfinish() {
    debug('onfinish');
    dest.removeListener('close', onclose);
    unpipe();
  }

  dest.once('finish', onfinish);

  function unpipe() {
    debug('unpipe');
    src.unpipe(dest);
  } // tell the dest that it's being piped to


  dest.emit('pipe', src); // start the flow if it hasn't been started already.

  if (!state.flowing) {
    debug('pipe resume');
    src.resume();
  }

  return dest;
};

function pipeOnDrain(src) {
  return function pipeOnDrainFunctionResult() {
    var state = src._readableState;
    debug('pipeOnDrain', state.awaitDrain);
    if (state.awaitDrain) state.awaitDrain--;

    if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
      state.flowing = true;
      flow(src);
    }
  };
}

Readable.prototype.unpipe = function (dest) {
  var state = this._readableState;
  var unpipeInfo = {
    hasUnpiped: false
  }; // if we're not piping anywhere, then do nothing.

  if (state.pipesCount === 0) return this; // just one destination.  most common case.

  if (state.pipesCount === 1) {
    // passed in one, but it's not the right one.
    if (dest && dest !== state.pipes) return this;
    if (!dest) dest = state.pipes; // got a match.

    state.pipes = null;
    state.pipesCount = 0;
    state.flowing = false;
    if (dest) dest.emit('unpipe', this, unpipeInfo);
    return this;
  } // slow case. multiple pipe destinations.


  if (!dest) {
    // remove all.
    var dests = state.pipes;
    var len = state.pipesCount;
    state.pipes = null;
    state.pipesCount = 0;
    state.flowing = false;

    for (var i = 0; i < len; i++) {
      dests[i].emit('unpipe', this, {
        hasUnpiped: false
      });
    }

    return this;
  } // try to find the right one.


  var index = indexOf(state.pipes, dest);
  if (index === -1) return this;
  state.pipes.splice(index, 1);
  state.pipesCount -= 1;
  if (state.pipesCount === 1) state.pipes = state.pipes[0];
  dest.emit('unpipe', this, unpipeInfo);
  return this;
}; // set up data events if they are asked for
// Ensure readable listeners eventually get something


Readable.prototype.on = function (ev, fn) {
  var res = Stream.prototype.on.call(this, ev, fn);
  var state = this._readableState;

  if (ev === 'data') {
    // update readableListening so that resume() may be a no-op
    // a few lines down. This is needed to support once('readable').
    state.readableListening = this.listenerCount('readable') > 0; // Try start flowing on next tick if stream isn't explicitly paused

    if (state.flowing !== false) this.resume();
  } else if (ev === 'readable') {
    if (!state.endEmitted && !state.readableListening) {
      state.readableListening = state.needReadable = true;
      state.flowing = false;
      state.emittedReadable = false;
      debug('on readable', state.length, state.reading);

      if (state.length) {
        emitReadable(this);
      } else if (!state.reading) {
        process.nextTick(nReadingNextTick, this);
      }
    }
  }

  return res;
};

Readable.prototype.addListener = Readable.prototype.on;

Readable.prototype.removeListener = function (ev, fn) {
  var res = Stream.prototype.removeListener.call(this, ev, fn);

  if (ev === 'readable') {
    // We need to check if there is someone still listening to
    // readable and reset the state. However this needs to happen
    // after readable has been emitted but before I/O (nextTick) to
    // support once('readable', fn) cycles. This means that calling
    // resume within the same tick will have no
    // effect.
    process.nextTick(updateReadableListening, this);
  }

  return res;
};

Readable.prototype.removeAllListeners = function (ev) {
  var res = Stream.prototype.removeAllListeners.apply(this, arguments);

  if (ev === 'readable' || ev === undefined) {
    // We need to check if there is someone still listening to
    // readable and reset the state. However this needs to happen
    // after readable has been emitted but before I/O (nextTick) to
    // support once('readable', fn) cycles. This means that calling
    // resume within the same tick will have no
    // effect.
    process.nextTick(updateReadableListening, this);
  }

  return res;
};

function updateReadableListening(self) {
  var state = self._readableState;
  state.readableListening = self.listenerCount('readable') > 0;

  if (state.resumeScheduled && !state.paused) {
    // flowing needs to be set to true now, otherwise
    // the upcoming resume will not flow.
    state.flowing = true; // crude way to check if we should resume
  } else if (self.listenerCount('data') > 0) {
    self.resume();
  }
}

function nReadingNextTick(self) {
  debug('readable nexttick read 0');
  self.read(0);
} // pause() and resume() are remnants of the legacy readable stream API
// If the user uses them, then switch into old mode.


Readable.prototype.resume = function () {
  var state = this._readableState;

  if (!state.flowing) {
    debug('resume'); // we flow only if there is no one listening
    // for readable, but we still have to call
    // resume()

    state.flowing = !state.readableListening;
    resume(this, state);
  }

  state.paused = false;
  return this;
};

function resume(stream, state) {
  if (!state.resumeScheduled) {
    state.resumeScheduled = true;
    process.nextTick(resume_, stream, state);
  }
}

function resume_(stream, state) {
  debug('resume', state.reading);

  if (!state.reading) {
    stream.read(0);
  }

  state.resumeScheduled = false;
  stream.emit('resume');
  flow(stream);
  if (state.flowing && !state.reading) stream.read(0);
}

Readable.prototype.pause = function () {
  debug('call pause flowing=%j', this._readableState.flowing);

  if (this._readableState.flowing !== false) {
    debug('pause');
    this._readableState.flowing = false;
    this.emit('pause');
  }

  this._readableState.paused = true;
  return this;
};

function flow(stream) {
  var state = stream._readableState;
  debug('flow', state.flowing);

  while (state.flowing && stream.read() !== null) {
    ;
  }
} // wrap an old-style stream as the async data source.
// This is *not* part of the readable stream interface.
// It is an ugly unfortunate mess of history.


Readable.prototype.wrap = function (stream) {
  var _this = this;

  var state = this._readableState;
  var paused = false;
  stream.on('end', function () {
    debug('wrapped end');

    if (state.decoder && !state.ended) {
      var chunk = state.decoder.end();
      if (chunk && chunk.length) _this.push(chunk);
    }

    _this.push(null);
  });
  stream.on('data', function (chunk) {
    debug('wrapped data');
    if (state.decoder) chunk = state.decoder.write(chunk); // don't skip over falsy values in objectMode

    if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;

    var ret = _this.push(chunk);

    if (!ret) {
      paused = true;
      stream.pause();
    }
  }); // proxy all the other methods.
  // important when wrapping filters and duplexes.

  for (var i in stream) {
    if (this[i] === undefined && typeof stream[i] === 'function') {
      this[i] = function methodWrap(method) {
        return function methodWrapReturnFunction() {
          return stream[method].apply(stream, arguments);
        };
      }(i);
    }
  } // proxy certain important events.


  for (var n = 0; n < kProxyEvents.length; n++) {
    stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));
  } // when we try to consume some more bytes, simply unpause the
  // underlying stream.


  this._read = function (n) {
    debug('wrapped _read', n);

    if (paused) {
      paused = false;
      stream.resume();
    }
  };

  return this;
};

if (typeof Symbol === 'function') {
  Readable.prototype[Symbol.asyncIterator] = function () {
    if (createReadableStreamAsyncIterator === undefined) {
      createReadableStreamAsyncIterator = require('./internal/streams/async_iterator');
    }

    return createReadableStreamAsyncIterator(this);
  };
}

Object.defineProperty(Readable.prototype, 'readableHighWaterMark', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._readableState.highWaterMark;
  }
});
Object.defineProperty(Readable.prototype, 'readableBuffer', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._readableState && this._readableState.buffer;
  }
});
Object.defineProperty(Readable.prototype, 'readableFlowing', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._readableState.flowing;
  },
  set: function set(state) {
    if (this._readableState) {
      this._readableState.flowing = state;
    }
  }
}); // exposed for testing purposes only.

Readable._fromList = fromList;
Object.defineProperty(Readable.prototype, 'readableLength', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._readableState.length;
  }
}); // Pluck off n bytes from an array of buffers.
// Length is the combined lengths of all the buffers in the list.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.

function fromList(n, state) {
  // nothing buffered
  if (state.length === 0) return null;
  var ret;
  if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
    // read it all, truncate the list
    if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.first();else ret = state.buffer.concat(state.length);
    state.buffer.clear();
  } else {
    // read part of list
    ret = state.buffer.consume(n, state.decoder);
  }
  return ret;
}

function endReadable(stream) {
  var state = stream._readableState;
  debug('endReadable', state.endEmitted);

  if (!state.endEmitted) {
    state.ended = true;
    process.nextTick(endReadableNT, state, stream);
  }
}

function endReadableNT(state, stream) {
  debug('endReadableNT', state.endEmitted, state.length); // Check that we didn't get one last unshift.

  if (!state.endEmitted && state.length === 0) {
    state.endEmitted = true;
    stream.readable = false;
    stream.emit('end');

    if (state.autoDestroy) {
      // In case of duplex streams we need a way to detect
      // if the writable side is ready for autoDestroy as well
      var wState = stream._writableState;

      if (!wState || wState.autoDestroy && wState.finished) {
        stream.destroy();
      }
    }
  }
}

if (typeof Symbol === 'function') {
  Readable.from = function (iterable, opts) {
    if (from === undefined) {
      from = require('./internal/streams/from');
    }

    return from(Readable, iterable, opts);
  };
}

function indexOf(xs, x) {
  for (var i = 0, l = xs.length; i < l; i++) {
    if (xs[i] === x) return i;
  }

  return -1;
}
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"../errors":84,"./_stream_duplex":85,"./internal/streams/async_iterator":90,"./internal/streams/buffer_list":91,"./internal/streams/destroy":92,"./internal/streams/from":94,"./internal/streams/state":96,"./internal/streams/stream":97,"_process":392,"buffer":99,"events":296,"inherits":306,"string_decoder/":340,"util":79}],88:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
// a transform stream is a readable/writable stream where you do
// something with the data.  Sometimes it's called a "filter",
// but that's not a great name for it, since that implies a thing where
// some bits pass through, and others are simply ignored.  (That would
// be a valid example of a transform, of course.)
//
// While the output is causally related to the input, it's not a
// necessarily symmetric or synchronous transformation.  For example,
// a zlib stream might take multiple plain-text writes(), and then
// emit a single compressed chunk some time in the future.
//
// Here's how this works:
//
// The Transform stream has all the aspects of the readable and writable
// stream classes.  When you write(chunk), that calls _write(chunk,cb)
// internally, and returns false if there's a lot of pending writes
// buffered up.  When you call read(), that calls _read(n) until
// there's enough pending readable data buffered up.
//
// In a transform stream, the written data is placed in a buffer.  When
// _read(n) is called, it transforms the queued up data, calling the
// buffered _write cb's as it consumes chunks.  If consuming a single
// written chunk would result in multiple output chunks, then the first
// outputted bit calls the readcb, and subsequent chunks just go into
// the read buffer, and will cause it to emit 'readable' if necessary.
//
// This way, back-pressure is actually determined by the reading side,
// since _read has to be called to start processing a new chunk.  However,
// a pathological inflate type of transform can cause excessive buffering
// here.  For example, imagine a stream where every byte of input is
// interpreted as an integer from 0-255, and then results in that many
// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
// 1kb of data being output.  In this case, you could write a very small
// amount of input, and end up with a very large amount of output.  In
// such a pathological inflating mechanism, there'd be no way to tell
// the system to stop doing the transform.  A single 4MB write could
// cause the system to run out of memory.
//
// However, even in such a pathological case, only a single written chunk
// would be consumed, and then the rest would wait (un-transformed) until
// the results of the previous transformed chunk were consumed.
'use strict';

module.exports = Transform;

var _require$codes = require('../errors').codes,
    ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
    ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,
    ERR_TRANSFORM_ALREADY_TRANSFORMING = _require$codes.ERR_TRANSFORM_ALREADY_TRANSFORMING,
    ERR_TRANSFORM_WITH_LENGTH_0 = _require$codes.ERR_TRANSFORM_WITH_LENGTH_0;

var Duplex = require('./_stream_duplex');

require('inherits')(Transform, Duplex);

function afterTransform(er, data) {
  var ts = this._transformState;
  ts.transforming = false;
  var cb = ts.writecb;

  if (cb === null) {
    return this.emit('error', new ERR_MULTIPLE_CALLBACK());
  }

  ts.writechunk = null;
  ts.writecb = null;
  if (data != null) // single equals check for both `null` and `undefined`
    this.push(data);
  cb(er);
  var rs = this._readableState;
  rs.reading = false;

  if (rs.needReadable || rs.length < rs.highWaterMark) {
    this._read(rs.highWaterMark);
  }
}

function Transform(options) {
  if (!(this instanceof Transform)) return new Transform(options);
  Duplex.call(this, options);
  this._transformState = {
    afterTransform: afterTransform.bind(this),
    needTransform: false,
    transforming: false,
    writecb: null,
    writechunk: null,
    writeencoding: null
  }; // start out asking for a readable event once data is transformed.

  this._readableState.needReadable = true; // we have implemented the _read method, and done the other things
  // that Readable wants before the first _read call, so unset the
  // sync guard flag.

  this._readableState.sync = false;

  if (options) {
    if (typeof options.transform === 'function') this._transform = options.transform;
    if (typeof options.flush === 'function') this._flush = options.flush;
  } // When the writable side finishes, then flush out anything remaining.


  this.on('prefinish', prefinish);
}

function prefinish() {
  var _this = this;

  if (typeof this._flush === 'function' && !this._readableState.destroyed) {
    this._flush(function (er, data) {
      done(_this, er, data);
    });
  } else {
    done(this, null, null);
  }
}

Transform.prototype.push = function (chunk, encoding) {
  this._transformState.needTransform = false;
  return Duplex.prototype.push.call(this, chunk, encoding);
}; // This is the part where you do stuff!
// override this function in implementation classes.
// 'chunk' is an input chunk.
//
// Call `push(newChunk)` to pass along transformed output
// to the readable side.  You may call 'push' zero or more times.
//
// Call `cb(err)` when you are done with this chunk.  If you pass
// an error, then that'll put the hurt on the whole operation.  If you
// never call cb(), then you'll never get another chunk.


Transform.prototype._transform = function (chunk, encoding, cb) {
  cb(new ERR_METHOD_NOT_IMPLEMENTED('_transform()'));
};

Transform.prototype._write = function (chunk, encoding, cb) {
  var ts = this._transformState;
  ts.writecb = cb;
  ts.writechunk = chunk;
  ts.writeencoding = encoding;

  if (!ts.transforming) {
    var rs = this._readableState;
    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
  }
}; // Doesn't matter what the args are here.
// _transform does all the work.
// That we got here means that the readable side wants more data.


Transform.prototype._read = function (n) {
  var ts = this._transformState;

  if (ts.writechunk !== null && !ts.transforming) {
    ts.transforming = true;

    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
  } else {
    // mark that we need a transform, so that any data that comes in
    // will get processed, now that we've asked for it.
    ts.needTransform = true;
  }
};

Transform.prototype._destroy = function (err, cb) {
  Duplex.prototype._destroy.call(this, err, function (err2) {
    cb(err2);
  });
};

function done(stream, er, data) {
  if (er) return stream.emit('error', er);
  if (data != null) // single equals check for both `null` and `undefined`
    stream.push(data); // TODO(BridgeAR): Write a test for these two error cases
  // if there's nothing in the write buffer, then that means
  // that nothing more will ever be provided

  if (stream._writableState.length) throw new ERR_TRANSFORM_WITH_LENGTH_0();
  if (stream._transformState.transforming) throw new ERR_TRANSFORM_ALREADY_TRANSFORMING();
  return stream.push(null);
}
},{"../errors":84,"./_stream_duplex":85,"inherits":306}],89:[function(require,module,exports){
(function (process,global){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
// A bit simpler than readable streams.
// Implement an async ._write(chunk, encoding, cb), and it'll handle all
// the drain event emission and buffering.
'use strict';

module.exports = Writable;
/* <replacement> */

function WriteReq(chunk, encoding, cb) {
  this.chunk = chunk;
  this.encoding = encoding;
  this.callback = cb;
  this.next = null;
} // It seems a linked list but it is not
// there will be only 2 of these for each stream


function CorkedRequest(state) {
  var _this = this;

  this.next = null;
  this.entry = null;

  this.finish = function () {
    onCorkedFinish(_this, state);
  };
}
/* </replacement> */

/*<replacement>*/


var Duplex;
/*</replacement>*/

Writable.WritableState = WritableState;
/*<replacement>*/

var internalUtil = {
  deprecate: require('util-deprecate')
};
/*</replacement>*/

/*<replacement>*/

var Stream = require('./internal/streams/stream');
/*</replacement>*/


var Buffer = require('buffer').Buffer;

var OurUint8Array = global.Uint8Array || function () {};

function _uint8ArrayToBuffer(chunk) {
  return Buffer.from(chunk);
}

function _isUint8Array(obj) {
  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
}

var destroyImpl = require('./internal/streams/destroy');

var _require = require('./internal/streams/state'),
    getHighWaterMark = _require.getHighWaterMark;

var _require$codes = require('../errors').codes,
    ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE,
    ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
    ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,
    ERR_STREAM_CANNOT_PIPE = _require$codes.ERR_STREAM_CANNOT_PIPE,
    ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED,
    ERR_STREAM_NULL_VALUES = _require$codes.ERR_STREAM_NULL_VALUES,
    ERR_STREAM_WRITE_AFTER_END = _require$codes.ERR_STREAM_WRITE_AFTER_END,
    ERR_UNKNOWN_ENCODING = _require$codes.ERR_UNKNOWN_ENCODING;

var errorOrDestroy = destroyImpl.errorOrDestroy;

require('inherits')(Writable, Stream);

function nop() {}

function WritableState(options, stream, isDuplex) {
  Duplex = Duplex || require('./_stream_duplex');
  options = options || {}; // Duplex streams are both readable and writable, but share
  // the same options object.
  // However, some cases require setting options to different
  // values for the readable and the writable sides of the duplex stream,
  // e.g. options.readableObjectMode vs. options.writableObjectMode, etc.

  if (typeof isDuplex !== 'boolean') isDuplex = stream instanceof Duplex; // object stream flag to indicate whether or not this stream
  // contains buffers or objects.

  this.objectMode = !!options.objectMode;
  if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode; // the point at which write() starts returning false
  // Note: 0 is a valid value, means that we always return false if
  // the entire buffer is not flushed immediately on write()

  this.highWaterMark = getHighWaterMark(this, options, 'writableHighWaterMark', isDuplex); // if _final has been called

  this.finalCalled = false; // drain event flag.

  this.needDrain = false; // at the start of calling end()

  this.ending = false; // when end() has been called, and returned

  this.ended = false; // when 'finish' is emitted

  this.finished = false; // has it been destroyed

  this.destroyed = false; // should we decode strings into buffers before passing to _write?
  // this is here so that some node-core streams can optimize string
  // handling at a lower level.

  var noDecode = options.decodeStrings === false;
  this.decodeStrings = !noDecode; // Crypto is kind of old and crusty.  Historically, its default string
  // encoding is 'binary' so we have to make this configurable.
  // Everything else in the universe uses 'utf8', though.

  this.defaultEncoding = options.defaultEncoding || 'utf8'; // not an actual buffer we keep track of, but a measurement
  // of how much we're waiting to get pushed to some underlying
  // socket or file.

  this.length = 0; // a flag to see when we're in the middle of a write.

  this.writing = false; // when true all writes will be buffered until .uncork() call

  this.corked = 0; // a flag to be able to tell if the onwrite cb is called immediately,
  // or on a later tick.  We set this to true at first, because any
  // actions that shouldn't happen until "later" should generally also
  // not happen before the first write call.

  this.sync = true; // a flag to know if we're processing previously buffered items, which
  // may call the _write() callback in the same tick, so that we don't
  // end up in an overlapped onwrite situation.

  this.bufferProcessing = false; // the callback that's passed to _write(chunk,cb)

  this.onwrite = function (er) {
    onwrite(stream, er);
  }; // the callback that the user supplies to write(chunk,encoding,cb)


  this.writecb = null; // the amount that is being written when _write is called.

  this.writelen = 0;
  this.bufferedRequest = null;
  this.lastBufferedRequest = null; // number of pending user-supplied write callbacks
  // this must be 0 before 'finish' can be emitted

  this.pendingcb = 0; // emit prefinish if the only thing we're waiting for is _write cbs
  // This is relevant for synchronous Transform streams

  this.prefinished = false; // True if the error was already emitted and should not be thrown again

  this.errorEmitted = false; // Should close be emitted on destroy. Defaults to true.

  this.emitClose = options.emitClose !== false; // Should .destroy() be called after 'finish' (and potentially 'end')

  this.autoDestroy = !!options.autoDestroy; // count buffered requests

  this.bufferedRequestCount = 0; // allocate the first CorkedRequest, there is always
  // one allocated and free to use, and we maintain at most two

  this.corkedRequestsFree = new CorkedRequest(this);
}

WritableState.prototype.getBuffer = function getBuffer() {
  var current = this.bufferedRequest;
  var out = [];

  while (current) {
    out.push(current);
    current = current.next;
  }

  return out;
};

(function () {
  try {
    Object.defineProperty(WritableState.prototype, 'buffer', {
      get: internalUtil.deprecate(function writableStateBufferGetter() {
        return this.getBuffer();
      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
    });
  } catch (_) {}
})(); // Test _writableState for inheritance to account for Duplex streams,
// whose prototype chain only points to Readable.


var realHasInstance;

if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
  realHasInstance = Function.prototype[Symbol.hasInstance];
  Object.defineProperty(Writable, Symbol.hasInstance, {
    value: function value(object) {
      if (realHasInstance.call(this, object)) return true;
      if (this !== Writable) return false;
      return object && object._writableState instanceof WritableState;
    }
  });
} else {
  realHasInstance = function realHasInstance(object) {
    return object instanceof this;
  };
}

function Writable(options) {
  Duplex = Duplex || require('./_stream_duplex'); // Writable ctor is applied to Duplexes, too.
  // `realHasInstance` is necessary because using plain `instanceof`
  // would return false, as no `_writableState` property is attached.
  // Trying to use the custom `instanceof` for Writable here will also break the
  // Node.js LazyTransform implementation, which has a non-trivial getter for
  // `_writableState` that would lead to infinite recursion.
  // Checking for a Stream.Duplex instance is faster here instead of inside
  // the WritableState constructor, at least with V8 6.5

  var isDuplex = this instanceof Duplex;
  if (!isDuplex && !realHasInstance.call(Writable, this)) return new Writable(options);
  this._writableState = new WritableState(options, this, isDuplex); // legacy.

  this.writable = true;

  if (options) {
    if (typeof options.write === 'function') this._write = options.write;
    if (typeof options.writev === 'function') this._writev = options.writev;
    if (typeof options.destroy === 'function') this._destroy = options.destroy;
    if (typeof options.final === 'function') this._final = options.final;
  }

  Stream.call(this);
} // Otherwise people can pipe Writable streams, which is just wrong.


Writable.prototype.pipe = function () {
  errorOrDestroy(this, new ERR_STREAM_CANNOT_PIPE());
};

function writeAfterEnd(stream, cb) {
  var er = new ERR_STREAM_WRITE_AFTER_END(); // TODO: defer error events consistently everywhere, not just the cb

  errorOrDestroy(stream, er);
  process.nextTick(cb, er);
} // Checks that a user-supplied chunk is valid, especially for the particular
// mode the stream is in. Currently this means that `null` is never accepted
// and undefined/non-string values are only allowed in object mode.


function validChunk(stream, state, chunk, cb) {
  var er;

  if (chunk === null) {
    er = new ERR_STREAM_NULL_VALUES();
  } else if (typeof chunk !== 'string' && !state.objectMode) {
    er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer'], chunk);
  }

  if (er) {
    errorOrDestroy(stream, er);
    process.nextTick(cb, er);
    return false;
  }

  return true;
}

Writable.prototype.write = function (chunk, encoding, cb) {
  var state = this._writableState;
  var ret = false;

  var isBuf = !state.objectMode && _isUint8Array(chunk);

  if (isBuf && !Buffer.isBuffer(chunk)) {
    chunk = _uint8ArrayToBuffer(chunk);
  }

  if (typeof encoding === 'function') {
    cb = encoding;
    encoding = null;
  }

  if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
  if (typeof cb !== 'function') cb = nop;
  if (state.ending) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
    state.pendingcb++;
    ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
  }
  return ret;
};

Writable.prototype.cork = function () {
  this._writableState.corked++;
};

Writable.prototype.uncork = function () {
  var state = this._writableState;

  if (state.corked) {
    state.corked--;
    if (!state.writing && !state.corked && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
  }
};

Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
  // node::ParseEncoding() requires lower case.
  if (typeof encoding === 'string') encoding = encoding.toLowerCase();
  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new ERR_UNKNOWN_ENCODING(encoding);
  this._writableState.defaultEncoding = encoding;
  return this;
};

Object.defineProperty(Writable.prototype, 'writableBuffer', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._writableState && this._writableState.getBuffer();
  }
});

function decodeChunk(state, chunk, encoding) {
  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
    chunk = Buffer.from(chunk, encoding);
  }

  return chunk;
}

Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._writableState.highWaterMark;
  }
}); // if we're already writing something, then just put this
// in the queue, and wait our turn.  Otherwise, call _write
// If we return false, then we need a drain event, so set that flag.

function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
  if (!isBuf) {
    var newChunk = decodeChunk(state, chunk, encoding);

    if (chunk !== newChunk) {
      isBuf = true;
      encoding = 'buffer';
      chunk = newChunk;
    }
  }

  var len = state.objectMode ? 1 : chunk.length;
  state.length += len;
  var ret = state.length < state.highWaterMark; // we must ensure that previous needDrain will not be reset to false.

  if (!ret) state.needDrain = true;

  if (state.writing || state.corked) {
    var last = state.lastBufferedRequest;
    state.lastBufferedRequest = {
      chunk: chunk,
      encoding: encoding,
      isBuf: isBuf,
      callback: cb,
      next: null
    };

    if (last) {
      last.next = state.lastBufferedRequest;
    } else {
      state.bufferedRequest = state.lastBufferedRequest;
    }

    state.bufferedRequestCount += 1;
  } else {
    doWrite(stream, state, false, len, chunk, encoding, cb);
  }

  return ret;
}

function doWrite(stream, state, writev, len, chunk, encoding, cb) {
  state.writelen = len;
  state.writecb = cb;
  state.writing = true;
  state.sync = true;
  if (state.destroyed) state.onwrite(new ERR_STREAM_DESTROYED('write'));else if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
  state.sync = false;
}

function onwriteError(stream, state, sync, er, cb) {
  --state.pendingcb;

  if (sync) {
    // defer the callback if we are being called synchronously
    // to avoid piling up things on the stack
    process.nextTick(cb, er); // this can emit finish, and it will always happen
    // after error

    process.nextTick(finishMaybe, stream, state);
    stream._writableState.errorEmitted = true;
    errorOrDestroy(stream, er);
  } else {
    // the caller expect this to happen before if
    // it is async
    cb(er);
    stream._writableState.errorEmitted = true;
    errorOrDestroy(stream, er); // this can emit finish, but finish must
    // always follow error

    finishMaybe(stream, state);
  }
}

function onwriteStateUpdate(state) {
  state.writing = false;
  state.writecb = null;
  state.length -= state.writelen;
  state.writelen = 0;
}

function onwrite(stream, er) {
  var state = stream._writableState;
  var sync = state.sync;
  var cb = state.writecb;
  if (typeof cb !== 'function') throw new ERR_MULTIPLE_CALLBACK();
  onwriteStateUpdate(state);
  if (er) onwriteError(stream, state, sync, er, cb);else {
    // Check if we're actually ready to finish, but don't emit yet
    var finished = needFinish(state) || stream.destroyed;

    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
      clearBuffer(stream, state);
    }

    if (sync) {
      process.nextTick(afterWrite, stream, state, finished, cb);
    } else {
      afterWrite(stream, state, finished, cb);
    }
  }
}

function afterWrite(stream, state, finished, cb) {
  if (!finished) onwriteDrain(stream, state);
  state.pendingcb--;
  cb();
  finishMaybe(stream, state);
} // Must force callback to be called on nextTick, so that we don't
// emit 'drain' before the write() consumer gets the 'false' return
// value, and has a chance to attach a 'drain' listener.


function onwriteDrain(stream, state) {
  if (state.length === 0 && state.needDrain) {
    state.needDrain = false;
    stream.emit('drain');
  }
} // if there's something in the buffer waiting, then process it


function clearBuffer(stream, state) {
  state.bufferProcessing = true;
  var entry = state.bufferedRequest;

  if (stream._writev && entry && entry.next) {
    // Fast case, write everything using _writev()
    var l = state.bufferedRequestCount;
    var buffer = new Array(l);
    var holder = state.corkedRequestsFree;
    holder.entry = entry;
    var count = 0;
    var allBuffers = true;

    while (entry) {
      buffer[count] = entry;
      if (!entry.isBuf) allBuffers = false;
      entry = entry.next;
      count += 1;
    }

    buffer.allBuffers = allBuffers;
    doWrite(stream, state, true, state.length, buffer, '', holder.finish); // doWrite is almost always async, defer these to save a bit of time
    // as the hot path ends with doWrite

    state.pendingcb++;
    state.lastBufferedRequest = null;

    if (holder.next) {
      state.corkedRequestsFree = holder.next;
      holder.next = null;
    } else {
      state.corkedRequestsFree = new CorkedRequest(state);
    }

    state.bufferedRequestCount = 0;
  } else {
    // Slow case, write chunks one-by-one
    while (entry) {
      var chunk = entry.chunk;
      var encoding = entry.encoding;
      var cb = entry.callback;
      var len = state.objectMode ? 1 : chunk.length;
      doWrite(stream, state, false, len, chunk, encoding, cb);
      entry = entry.next;
      state.bufferedRequestCount--; // if we didn't call the onwrite immediately, then
      // it means that we need to wait until it does.
      // also, that means that the chunk and cb are currently
      // being processed, so move the buffer counter past them.

      if (state.writing) {
        break;
      }
    }

    if (entry === null) state.lastBufferedRequest = null;
  }

  state.bufferedRequest = entry;
  state.bufferProcessing = false;
}

Writable.prototype._write = function (chunk, encoding, cb) {
  cb(new ERR_METHOD_NOT_IMPLEMENTED('_write()'));
};

Writable.prototype._writev = null;

Writable.prototype.end = function (chunk, encoding, cb) {
  var state = this._writableState;

  if (typeof chunk === 'function') {
    cb = chunk;
    chunk = null;
    encoding = null;
  } else if (typeof encoding === 'function') {
    cb = encoding;
    encoding = null;
  }

  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding); // .end() fully uncorks

  if (state.corked) {
    state.corked = 1;
    this.uncork();
  } // ignore unnecessary end() calls.


  if (!state.ending) endWritable(this, state, cb);
  return this;
};

Object.defineProperty(Writable.prototype, 'writableLength', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._writableState.length;
  }
});

function needFinish(state) {
  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
}

function callFinal(stream, state) {
  stream._final(function (err) {
    state.pendingcb--;

    if (err) {
      errorOrDestroy(stream, err);
    }

    state.prefinished = true;
    stream.emit('prefinish');
    finishMaybe(stream, state);
  });
}

function prefinish(stream, state) {
  if (!state.prefinished && !state.finalCalled) {
    if (typeof stream._final === 'function' && !state.destroyed) {
      state.pendingcb++;
      state.finalCalled = true;
      process.nextTick(callFinal, stream, state);
    } else {
      state.prefinished = true;
      stream.emit('prefinish');
    }
  }
}

function finishMaybe(stream, state) {
  var need = needFinish(state);

  if (need) {
    prefinish(stream, state);

    if (state.pendingcb === 0) {
      state.finished = true;
      stream.emit('finish');

      if (state.autoDestroy) {
        // In case of duplex streams we need a way to detect
        // if the readable side is ready for autoDestroy as well
        var rState = stream._readableState;

        if (!rState || rState.autoDestroy && rState.endEmitted) {
          stream.destroy();
        }
      }
    }
  }

  return need;
}

function endWritable(stream, state, cb) {
  state.ending = true;
  finishMaybe(stream, state);

  if (cb) {
    if (state.finished) process.nextTick(cb);else stream.once('finish', cb);
  }

  state.ended = true;
  stream.writable = false;
}

function onCorkedFinish(corkReq, state, err) {
  var entry = corkReq.entry;
  corkReq.entry = null;

  while (entry) {
    var cb = entry.callback;
    state.pendingcb--;
    cb(err);
    entry = entry.next;
  } // reuse the free corkReq.


  state.corkedRequestsFree.next = corkReq;
}

Object.defineProperty(Writable.prototype, 'destroyed', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    if (this._writableState === undefined) {
      return false;
    }

    return this._writableState.destroyed;
  },
  set: function set(value) {
    // we ignore the value if the stream
    // has not been initialized yet
    if (!this._writableState) {
      return;
    } // backward compatibility, the user is explicitly
    // managing destroyed


    this._writableState.destroyed = value;
  }
});
Writable.prototype.destroy = destroyImpl.destroy;
Writable.prototype._undestroy = destroyImpl.undestroy;

Writable.prototype._destroy = function (err, cb) {
  cb(err);
};
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"../errors":84,"./_stream_duplex":85,"./internal/streams/destroy":92,"./internal/streams/state":96,"./internal/streams/stream":97,"_process":392,"buffer":99,"inherits":306,"util-deprecate":342}],90:[function(require,module,exports){
(function (process){
'use strict';

var _Object$setPrototypeO;

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

var finished = require('./end-of-stream');

var kLastResolve = Symbol('lastResolve');
var kLastReject = Symbol('lastReject');
var kError = Symbol('error');
var kEnded = Symbol('ended');
var kLastPromise = Symbol('lastPromise');
var kHandlePromise = Symbol('handlePromise');
var kStream = Symbol('stream');

function createIterResult(value, done) {
  return {
    value: value,
    done: done
  };
}

function readAndResolve(iter) {
  var resolve = iter[kLastResolve];

  if (resolve !== null) {
    var data = iter[kStream].read(); // we defer if data is null
    // we can be expecting either 'end' or
    // 'error'

    if (data !== null) {
      iter[kLastPromise] = null;
      iter[kLastResolve] = null;
      iter[kLastReject] = null;
      resolve(createIterResult(data, false));
    }
  }
}

function onReadable(iter) {
  // we wait for the next tick, because it might
  // emit an error with process.nextTick
  process.nextTick(readAndResolve, iter);
}

function wrapForNext(lastPromise, iter) {
  return function (resolve, reject) {
    lastPromise.then(function () {
      if (iter[kEnded]) {
        resolve(createIterResult(undefined, true));
        return;
      }

      iter[kHandlePromise](resolve, reject);
    }, reject);
  };
}

var AsyncIteratorPrototype = Object.getPrototypeOf(function () {});
var ReadableStreamAsyncIteratorPrototype = Object.setPrototypeOf((_Object$setPrototypeO = {
  get stream() {
    return this[kStream];
  },

  next: function next() {
    var _this = this;

    // if we have detected an error in the meanwhile
    // reject straight away
    var error = this[kError];

    if (error !== null) {
      return Promise.reject(error);
    }

    if (this[kEnded]) {
      return Promise.resolve(createIterResult(undefined, true));
    }

    if (this[kStream].destroyed) {
      // We need to defer via nextTick because if .destroy(err) is
      // called, the error will be emitted via nextTick, and
      // we cannot guarantee that there is no error lingering around
      // waiting to be emitted.
      return new Promise(function (resolve, reject) {
        process.nextTick(function () {
          if (_this[kError]) {
            reject(_this[kError]);
          } else {
            resolve(createIterResult(undefined, true));
          }
        });
      });
    } // if we have multiple next() calls
    // we will wait for the previous Promise to finish
    // this logic is optimized to support for await loops,
    // where next() is only called once at a time


    var lastPromise = this[kLastPromise];
    var promise;

    if (lastPromise) {
      promise = new Promise(wrapForNext(lastPromise, this));
    } else {
      // fast path needed to support multiple this.push()
      // without triggering the next() queue
      var data = this[kStream].read();

      if (data !== null) {
        return Promise.resolve(createIterResult(data, false));
      }

      promise = new Promise(this[kHandlePromise]);
    }

    this[kLastPromise] = promise;
    return promise;
  }
}, _defineProperty(_Object$setPrototypeO, Symbol.asyncIterator, function () {
  return this;
}), _defineProperty(_Object$setPrototypeO, "return", function _return() {
  var _this2 = this;

  // destroy(err, cb) is a private API
  // we can guarantee we have that here, because we control the
  // Readable class this is attached to
  return new Promise(function (resolve, reject) {
    _this2[kStream].destroy(null, function (err) {
      if (err) {
        reject(err);
        return;
      }

      resolve(createIterResult(undefined, true));
    });
  });
}), _Object$setPrototypeO), AsyncIteratorPrototype);

var createReadableStreamAsyncIterator = function createReadableStreamAsyncIterator(stream) {
  var _Object$create;

  var iterator = Object.create(ReadableStreamAsyncIteratorPrototype, (_Object$create = {}, _defineProperty(_Object$create, kStream, {
    value: stream,
    writable: true
  }), _defineProperty(_Object$create, kLastResolve, {
    value: null,
    writable: true
  }), _defineProperty(_Object$create, kLastReject, {
    value: null,
    writable: true
  }), _defineProperty(_Object$create, kError, {
    value: null,
    writable: true
  }), _defineProperty(_Object$create, kEnded, {
    value: stream._readableState.endEmitted,
    writable: true
  }), _defineProperty(_Object$create, kHandlePromise, {
    value: function value(resolve, reject) {
      var data = iterator[kStream].read();

      if (data) {
        iterator[kLastPromise] = null;
        iterator[kLastResolve] = null;
        iterator[kLastReject] = null;
        resolve(createIterResult(data, false));
      } else {
        iterator[kLastResolve] = resolve;
        iterator[kLastReject] = reject;
      }
    },
    writable: true
  }), _Object$create));
  iterator[kLastPromise] = null;
  finished(stream, function (err) {
    if (err && err.code !== 'ERR_STREAM_PREMATURE_CLOSE') {
      var reject = iterator[kLastReject]; // reject if we are waiting for data in the Promise
      // returned by next() and store the error

      if (reject !== null) {
        iterator[kLastPromise] = null;
        iterator[kLastResolve] = null;
        iterator[kLastReject] = null;
        reject(err);
      }

      iterator[kError] = err;
      return;
    }

    var resolve = iterator[kLastResolve];

    if (resolve !== null) {
      iterator[kLastPromise] = null;
      iterator[kLastResolve] = null;
      iterator[kLastReject] = null;
      resolve(createIterResult(undefined, true));
    }

    iterator[kEnded] = true;
  });
  stream.on('readable', onReadable.bind(null, iterator));
  return iterator;
};

module.exports = createReadableStreamAsyncIterator;
}).call(this,require('_process'))
},{"./end-of-stream":93,"_process":392}],91:[function(require,module,exports){
'use strict';

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var _require = require('buffer'),
    Buffer = _require.Buffer;

var _require2 = require('util'),
    inspect = _require2.inspect;

var custom = inspect && inspect.custom || 'inspect';

function copyBuffer(src, target, offset) {
  Buffer.prototype.copy.call(src, target, offset);
}

module.exports =
/*#__PURE__*/
function () {
  function BufferList() {
    _classCallCheck(this, BufferList);

    this.head = null;
    this.tail = null;
    this.length = 0;
  }

  _createClass(BufferList, [{
    key: "push",
    value: function push(v) {
      var entry = {
        data: v,
        next: null
      };
      if (this.length > 0) this.tail.next = entry;else this.head = entry;
      this.tail = entry;
      ++this.length;
    }
  }, {
    key: "unshift",
    value: function unshift(v) {
      var entry = {
        data: v,
        next: this.head
      };
      if (this.length === 0) this.tail = entry;
      this.head = entry;
      ++this.length;
    }
  }, {
    key: "shift",
    value: function shift() {
      if (this.length === 0) return;
      var ret = this.head.data;
      if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
      --this.length;
      return ret;
    }
  }, {
    key: "clear",
    value: function clear() {
      this.head = this.tail = null;
      this.length = 0;
    }
  }, {
    key: "join",
    value: function join(s) {
      if (this.length === 0) return '';
      var p = this.head;
      var ret = '' + p.data;

      while (p = p.next) {
        ret += s + p.data;
      }

      return ret;
    }
  }, {
    key: "concat",
    value: function concat(n) {
      if (this.length === 0) return Buffer.alloc(0);
      var ret = Buffer.allocUnsafe(n >>> 0);
      var p = this.head;
      var i = 0;

      while (p) {
        copyBuffer(p.data, ret, i);
        i += p.data.length;
        p = p.next;
      }

      return ret;
    } // Consumes a specified amount of bytes or characters from the buffered data.

  }, {
    key: "consume",
    value: function consume(n, hasStrings) {
      var ret;

      if (n < this.head.data.length) {
        // `slice` is the same for buffers and strings.
        ret = this.head.data.slice(0, n);
        this.head.data = this.head.data.slice(n);
      } else if (n === this.head.data.length) {
        // First chunk is a perfect match.
        ret = this.shift();
      } else {
        // Result spans more than one buffer.
        ret = hasStrings ? this._getString(n) : this._getBuffer(n);
      }

      return ret;
    }
  }, {
    key: "first",
    value: function first() {
      return this.head.data;
    } // Consumes a specified amount of characters from the buffered data.

  }, {
    key: "_getString",
    value: function _getString(n) {
      var p = this.head;
      var c = 1;
      var ret = p.data;
      n -= ret.length;

      while (p = p.next) {
        var str = p.data;
        var nb = n > str.length ? str.length : n;
        if (nb === str.length) ret += str;else ret += str.slice(0, n);
        n -= nb;

        if (n === 0) {
          if (nb === str.length) {
            ++c;
            if (p.next) this.head = p.next;else this.head = this.tail = null;
          } else {
            this.head = p;
            p.data = str.slice(nb);
          }

          break;
        }

        ++c;
      }

      this.length -= c;
      return ret;
    } // Consumes a specified amount of bytes from the buffered data.

  }, {
    key: "_getBuffer",
    value: function _getBuffer(n) {
      var ret = Buffer.allocUnsafe(n);
      var p = this.head;
      var c = 1;
      p.data.copy(ret);
      n -= p.data.length;

      while (p = p.next) {
        var buf = p.data;
        var nb = n > buf.length ? buf.length : n;
        buf.copy(ret, ret.length - n, 0, nb);
        n -= nb;

        if (n === 0) {
          if (nb === buf.length) {
            ++c;
            if (p.next) this.head = p.next;else this.head = this.tail = null;
          } else {
            this.head = p;
            p.data = buf.slice(nb);
          }

          break;
        }

        ++c;
      }

      this.length -= c;
      return ret;
    } // Make sure the linked list only shows the minimal necessary information.

  }, {
    key: custom,
    value: function value(_, options) {
      return inspect(this, _objectSpread({}, options, {
        // Only inspect one level.
        depth: 0,
        // It should not recurse.
        customInspect: false
      }));
    }
  }]);

  return BufferList;
}();
},{"buffer":99,"util":79}],92:[function(require,module,exports){
(function (process){
'use strict'; // undocumented cb() API, needed for core, not for public API

function destroy(err, cb) {
  var _this = this;

  var readableDestroyed = this._readableState && this._readableState.destroyed;
  var writableDestroyed = this._writableState && this._writableState.destroyed;

  if (readableDestroyed || writableDestroyed) {
    if (cb) {
      cb(err);
    } else if (err) {
      if (!this._writableState) {
        process.nextTick(emitErrorNT, this, err);
      } else if (!this._writableState.errorEmitted) {
        this._writableState.errorEmitted = true;
        process.nextTick(emitErrorNT, this, err);
      }
    }

    return this;
  } // we set destroyed to true before firing error callbacks in order
  // to make it re-entrance safe in case destroy() is called within callbacks


  if (this._readableState) {
    this._readableState.destroyed = true;
  } // if this is a duplex stream mark the writable part as destroyed as well


  if (this._writableState) {
    this._writableState.destroyed = true;
  }

  this._destroy(err || null, function (err) {
    if (!cb && err) {
      if (!_this._writableState) {
        process.nextTick(emitErrorAndCloseNT, _this, err);
      } else if (!_this._writableState.errorEmitted) {
        _this._writableState.errorEmitted = true;
        process.nextTick(emitErrorAndCloseNT, _this, err);
      } else {
        process.nextTick(emitCloseNT, _this);
      }
    } else if (cb) {
      process.nextTick(emitCloseNT, _this);
      cb(err);
    } else {
      process.nextTick(emitCloseNT, _this);
    }
  });

  return this;
}

function emitErrorAndCloseNT(self, err) {
  emitErrorNT(self, err);
  emitCloseNT(self);
}

function emitCloseNT(self) {
  if (self._writableState && !self._writableState.emitClose) return;
  if (self._readableState && !self._readableState.emitClose) return;
  self.emit('close');
}

function undestroy() {
  if (this._readableState) {
    this._readableState.destroyed = false;
    this._readableState.reading = false;
    this._readableState.ended = false;
    this._readableState.endEmitted = false;
  }

  if (this._writableState) {
    this._writableState.destroyed = false;
    this._writableState.ended = false;
    this._writableState.ending = false;
    this._writableState.finalCalled = false;
    this._writableState.prefinished = false;
    this._writableState.finished = false;
    this._writableState.errorEmitted = false;
  }
}

function emitErrorNT(self, err) {
  self.emit('error', err);
}

function errorOrDestroy(stream, err) {
  // We have tests that rely on errors being emitted
  // in the same tick, so changing this is semver major.
  // For now when you opt-in to autoDestroy we allow
  // the error to be emitted nextTick. In a future
  // semver major update we should change the default to this.
  var rState = stream._readableState;
  var wState = stream._writableState;
  if (rState && rState.autoDestroy || wState && wState.autoDestroy) stream.destroy(err);else stream.emit('error', err);
}

module.exports = {
  destroy: destroy,
  undestroy: undestroy,
  errorOrDestroy: errorOrDestroy
};
}).call(this,require('_process'))
},{"_process":392}],93:[function(require,module,exports){
// Ported from https://github.com/mafintosh/end-of-stream with
// permission from the author, Mathias Buus (@mafintosh).
'use strict';

var ERR_STREAM_PREMATURE_CLOSE = require('../../../errors').codes.ERR_STREAM_PREMATURE_CLOSE;

function once(callback) {
  var called = false;
  return function () {
    if (called) return;
    called = true;

    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    callback.apply(this, args);
  };
}

function noop() {}

function isRequest(stream) {
  return stream.setHeader && typeof stream.abort === 'function';
}

function eos(stream, opts, callback) {
  if (typeof opts === 'function') return eos(stream, null, opts);
  if (!opts) opts = {};
  callback = once(callback || noop);
  var readable = opts.readable || opts.readable !== false && stream.readable;
  var writable = opts.writable || opts.writable !== false && stream.writable;

  var onlegacyfinish = function onlegacyfinish() {
    if (!stream.writable) onfinish();
  };

  var writableEnded = stream._writableState && stream._writableState.finished;

  var onfinish = function onfinish() {
    writable = false;
    writableEnded = true;
    if (!readable) callback.call(stream);
  };

  var readableEnded = stream._readableState && stream._readableState.endEmitted;

  var onend = function onend() {
    readable = false;
    readableEnded = true;
    if (!writable) callback.call(stream);
  };

  var onerror = function onerror(err) {
    callback.call(stream, err);
  };

  var onclose = function onclose() {
    var err;

    if (readable && !readableEnded) {
      if (!stream._readableState || !stream._readableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE();
      return callback.call(stream, err);
    }

    if (writable && !writableEnded) {
      if (!stream._writableState || !stream._writableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE();
      return callback.call(stream, err);
    }
  };

  var onrequest = function onrequest() {
    stream.req.on('finish', onfinish);
  };

  if (isRequest(stream)) {
    stream.on('complete', onfinish);
    stream.on('abort', onclose);
    if (stream.req) onrequest();else stream.on('request', onrequest);
  } else if (writable && !stream._writableState) {
    // legacy streams
    stream.on('end', onlegacyfinish);
    stream.on('close', onlegacyfinish);
  }

  stream.on('end', onend);
  stream.on('finish', onfinish);
  if (opts.error !== false) stream.on('error', onerror);
  stream.on('close', onclose);
  return function () {
    stream.removeListener('complete', onfinish);
    stream.removeListener('abort', onclose);
    stream.removeListener('request', onrequest);
    if (stream.req) stream.req.removeListener('finish', onfinish);
    stream.removeListener('end', onlegacyfinish);
    stream.removeListener('close', onlegacyfinish);
    stream.removeListener('finish', onfinish);
    stream.removeListener('end', onend);
    stream.removeListener('error', onerror);
    stream.removeListener('close', onclose);
  };
}

module.exports = eos;
},{"../../../errors":84}],94:[function(require,module,exports){
module.exports = function () {
  throw new Error('Readable.from is not available in the browser')
};

},{}],95:[function(require,module,exports){
// Ported from https://github.com/mafintosh/pump with
// permission from the author, Mathias Buus (@mafintosh).
'use strict';

var eos;

function once(callback) {
  var called = false;
  return function () {
    if (called) return;
    called = true;
    callback.apply(void 0, arguments);
  };
}

var _require$codes = require('../../../errors').codes,
    ERR_MISSING_ARGS = _require$codes.ERR_MISSING_ARGS,
    ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED;

function noop(err) {
  // Rethrow the error if it exists to avoid swallowing it
  if (err) throw err;
}

function isRequest(stream) {
  return stream.setHeader && typeof stream.abort === 'function';
}

function destroyer(stream, reading, writing, callback) {
  callback = once(callback);
  var closed = false;
  stream.on('close', function () {
    closed = true;
  });
  if (eos === undefined) eos = require('./end-of-stream');
  eos(stream, {
    readable: reading,
    writable: writing
  }, function (err) {
    if (err) return callback(err);
    closed = true;
    callback();
  });
  var destroyed = false;
  return function (err) {
    if (closed) return;
    if (destroyed) return;
    destroyed = true; // request.destroy just do .end - .abort is what we want

    if (isRequest(stream)) return stream.abort();
    if (typeof stream.destroy === 'function') return stream.destroy();
    callback(err || new ERR_STREAM_DESTROYED('pipe'));
  };
}

function call(fn) {
  fn();
}

function pipe(from, to) {
  return from.pipe(to);
}

function popCallback(streams) {
  if (!streams.length) return noop;
  if (typeof streams[streams.length - 1] !== 'function') return noop;
  return streams.pop();
}

function pipeline() {
  for (var _len = arguments.length, streams = new Array(_len), _key = 0; _key < _len; _key++) {
    streams[_key] = arguments[_key];
  }

  var callback = popCallback(streams);
  if (Array.isArray(streams[0])) streams = streams[0];

  if (streams.length < 2) {
    throw new ERR_MISSING_ARGS('streams');
  }

  var error;
  var destroys = streams.map(function (stream, i) {
    var reading = i < streams.length - 1;
    var writing = i > 0;
    return destroyer(stream, reading, writing, function (err) {
      if (!error) error = err;
      if (err) destroys.forEach(call);
      if (reading) return;
      destroys.forEach(call);
      callback(error);
    });
  });
  return streams.reduce(pipe);
}

module.exports = pipeline;
},{"../../../errors":84,"./end-of-stream":93}],96:[function(require,module,exports){
'use strict';

var ERR_INVALID_OPT_VALUE = require('../../../errors').codes.ERR_INVALID_OPT_VALUE;

function highWaterMarkFrom(options, isDuplex, duplexKey) {
  return options.highWaterMark != null ? options.highWaterMark : isDuplex ? options[duplexKey] : null;
}

function getHighWaterMark(state, options, duplexKey, isDuplex) {
  var hwm = highWaterMarkFrom(options, isDuplex, duplexKey);

  if (hwm != null) {
    if (!(isFinite(hwm) && Math.floor(hwm) === hwm) || hwm < 0) {
      var name = isDuplex ? duplexKey : 'highWaterMark';
      throw new ERR_INVALID_OPT_VALUE(name, hwm);
    }

    return Math.floor(hwm);
  } // Default value


  return state.objectMode ? 16 : 16 * 1024;
}

module.exports = {
  getHighWaterMark: getHighWaterMark
};
},{"../../../errors":84}],97:[function(require,module,exports){
module.exports = require('events').EventEmitter;

},{"events":296}],98:[function(require,module,exports){
exports = module.exports = require('./lib/_stream_readable.js');
exports.Stream = exports;
exports.Readable = exports;
exports.Writable = require('./lib/_stream_writable.js');
exports.Duplex = require('./lib/_stream_duplex.js');
exports.Transform = require('./lib/_stream_transform.js');
exports.PassThrough = require('./lib/_stream_passthrough.js');
exports.finished = require('./lib/internal/streams/end-of-stream.js');
exports.pipeline = require('./lib/internal/streams/pipeline.js');

},{"./lib/_stream_duplex.js":85,"./lib/_stream_passthrough.js":86,"./lib/_stream_readable.js":87,"./lib/_stream_transform.js":88,"./lib/_stream_writable.js":89,"./lib/internal/streams/end-of-stream.js":93,"./lib/internal/streams/pipeline.js":95}],99:[function(require,module,exports){
(function (Buffer){
/*!
 * The buffer module from node.js, for the browser.
 *
 * @author   Feross Aboukhadijeh <https://feross.org>
 * @license  MIT
 */
/* eslint-disable no-proto */

'use strict'

var base64 = require('base64-js')
var ieee754 = require('ieee754')

exports.Buffer = Buffer
exports.SlowBuffer = SlowBuffer
exports.INSPECT_MAX_BYTES = 50

var K_MAX_LENGTH = 0x7fffffff
exports.kMaxLength = K_MAX_LENGTH

/**
 * If `Buffer.TYPED_ARRAY_SUPPORT`:
 *   === true    Use Uint8Array implementation (fastest)
 *   === false   Print warning and recommend using `buffer` v4.x which has an Object
 *               implementation (most compatible, even IE6)
 *
 * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
 * Opera 11.6+, iOS 4.2+.
 *
 * We report that the browser does not support typed arrays if the are not subclassable
 * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
 * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
 * for __proto__ and has a buggy typed array implementation.
 */
Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()

if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&
    typeof console.error === 'function') {
  console.error(
    'This browser lacks typed array (Uint8Array) support which is required by ' +
    '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'
  )
}

function typedArraySupport () {
  // Can typed array instances can be augmented?
  try {
    var arr = new Uint8Array(1)
    arr.__proto__ = { __proto__: Uint8Array.prototype, foo: function () { return 42 } }
    return arr.foo() === 42
  } catch (e) {
    return false
  }
}

Object.defineProperty(Buffer.prototype, 'parent', {
  enumerable: true,
  get: function () {
    if (!Buffer.isBuffer(this)) return undefined
    return this.buffer
  }
})

Object.defineProperty(Buffer.prototype, 'offset', {
  enumerable: true,
  get: function () {
    if (!Buffer.isBuffer(this)) return undefined
    return this.byteOffset
  }
})

function createBuffer (length) {
  if (length > K_MAX_LENGTH) {
    throw new RangeError('The value "' + length + '" is invalid for option "size"')
  }
  // Return an augmented `Uint8Array` instance
  var buf = new Uint8Array(length)
  buf.__proto__ = Buffer.prototype
  return buf
}

/**
 * The Buffer constructor returns instances of `Uint8Array` that have their
 * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
 * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
 * and the `Uint8Array` methods. Square bracket notation works as expected -- it
 * returns a single octet.
 *
 * The `Uint8Array` prototype remains unmodified.
 */

function Buffer (arg, encodingOrOffset, length) {
  // Common case.
  if (typeof arg === 'number') {
    if (typeof encodingOrOffset === 'string') {
      throw new TypeError(
        'The "string" argument must be of type string. Received type number'
      )
    }
    return allocUnsafe(arg)
  }
  return from(arg, encodingOrOffset, length)
}

// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
if (typeof Symbol !== 'undefined' && Symbol.species != null &&
    Buffer[Symbol.species] === Buffer) {
  Object.defineProperty(Buffer, Symbol.species, {
    value: null,
    configurable: true,
    enumerable: false,
    writable: false
  })
}

Buffer.poolSize = 8192 // not used by this implementation

function from (value, encodingOrOffset, length) {
  if (typeof value === 'string') {
    return fromString(value, encodingOrOffset)
  }

  if (ArrayBuffer.isView(value)) {
    return fromArrayLike(value)
  }

  if (value == null) {
    throw TypeError(
      'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
      'or Array-like Object. Received type ' + (typeof value)
    )
  }

  if (isInstance(value, ArrayBuffer) ||
      (value && isInstance(value.buffer, ArrayBuffer))) {
    return fromArrayBuffer(value, encodingOrOffset, length)
  }

  if (typeof value === 'number') {
    throw new TypeError(
      'The "value" argument must not be of type number. Received type number'
    )
  }

  var valueOf = value.valueOf && value.valueOf()
  if (valueOf != null && valueOf !== value) {
    return Buffer.from(valueOf, encodingOrOffset, length)
  }

  var b = fromObject(value)
  if (b) return b

  if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null &&
      typeof value[Symbol.toPrimitive] === 'function') {
    return Buffer.from(
      value[Symbol.toPrimitive]('string'), encodingOrOffset, length
    )
  }

  throw new TypeError(
    'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
    'or Array-like Object. Received type ' + (typeof value)
  )
}

/**
 * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
 * if value is a number.
 * Buffer.from(str[, encoding])
 * Buffer.from(array)
 * Buffer.from(buffer)
 * Buffer.from(arrayBuffer[, byteOffset[, length]])
 **/
Buffer.from = function (value, encodingOrOffset, length) {
  return from(value, encodingOrOffset, length)
}

// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
// https://github.com/feross/buffer/pull/148
Buffer.prototype.__proto__ = Uint8Array.prototype
Buffer.__proto__ = Uint8Array

function assertSize (size) {
  if (typeof size !== 'number') {
    throw new TypeError('"size" argument must be of type number')
  } else if (size < 0) {
    throw new RangeError('The value "' + size + '" is invalid for option "size"')
  }
}

function alloc (size, fill, encoding) {
  assertSize(size)
  if (size <= 0) {
    return createBuffer(size)
  }
  if (fill !== undefined) {
    // Only pay attention to encoding if it's a string. This
    // prevents accidentally sending in a number that would
    // be interpretted as a start offset.
    return typeof encoding === 'string'
      ? createBuffer(size).fill(fill, encoding)
      : createBuffer(size).fill(fill)
  }
  return createBuffer(size)
}

/**
 * Creates a new filled Buffer instance.
 * alloc(size[, fill[, encoding]])
 **/
Buffer.alloc = function (size, fill, encoding) {
  return alloc(size, fill, encoding)
}

function allocUnsafe (size) {
  assertSize(size)
  return createBuffer(size < 0 ? 0 : checked(size) | 0)
}

/**
 * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
 * */
Buffer.allocUnsafe = function (size) {
  return allocUnsafe(size)
}
/**
 * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
 */
Buffer.allocUnsafeSlow = function (size) {
  return allocUnsafe(size)
}

function fromString (string, encoding) {
  if (typeof encoding !== 'string' || encoding === '') {
    encoding = 'utf8'
  }

  if (!Buffer.isEncoding(encoding)) {
    throw new TypeError('Unknown encoding: ' + encoding)
  }

  var length = byteLength(string, encoding) | 0
  var buf = createBuffer(length)

  var actual = buf.write(string, encoding)

  if (actual !== length) {
    // Writing a hex string, for example, that contains invalid characters will
    // cause everything after the first invalid character to be ignored. (e.g.
    // 'abxxcd' will be treated as 'ab')
    buf = buf.slice(0, actual)
  }

  return buf
}

function fromArrayLike (array) {
  var length = array.length < 0 ? 0 : checked(array.length) | 0
  var buf = createBuffer(length)
  for (var i = 0; i < length; i += 1) {
    buf[i] = array[i] & 255
  }
  return buf
}

function fromArrayBuffer (array, byteOffset, length) {
  if (byteOffset < 0 || array.byteLength < byteOffset) {
    throw new RangeError('"offset" is outside of buffer bounds')
  }

  if (array.byteLength < byteOffset + (length || 0)) {
    throw new RangeError('"length" is outside of buffer bounds')
  }

  var buf
  if (byteOffset === undefined && length === undefined) {
    buf = new Uint8Array(array)
  } else if (length === undefined) {
    buf = new Uint8Array(array, byteOffset)
  } else {
    buf = new Uint8Array(array, byteOffset, length)
  }

  // Return an augmented `Uint8Array` instance
  buf.__proto__ = Buffer.prototype
  return buf
}

function fromObject (obj) {
  if (Buffer.isBuffer(obj)) {
    var len = checked(obj.length) | 0
    var buf = createBuffer(len)

    if (buf.length === 0) {
      return buf
    }

    obj.copy(buf, 0, 0, len)
    return buf
  }

  if (obj.length !== undefined) {
    if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
      return createBuffer(0)
    }
    return fromArrayLike(obj)
  }

  if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
    return fromArrayLike(obj.data)
  }
}

function checked (length) {
  // Note: cannot use `length < K_MAX_LENGTH` here because that fails when
  // length is NaN (which is otherwise coerced to zero.)
  if (length >= K_MAX_LENGTH) {
    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
                         'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
  }
  return length | 0
}

function SlowBuffer (length) {
  if (+length != length) { // eslint-disable-line eqeqeq
    length = 0
  }
  return Buffer.alloc(+length)
}

Buffer.isBuffer = function isBuffer (b) {
  return b != null && b._isBuffer === true &&
    b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false
}

Buffer.compare = function compare (a, b) {
  if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength)
  if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength)
  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
    throw new TypeError(
      'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array'
    )
  }

  if (a === b) return 0

  var x = a.length
  var y = b.length

  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
    if (a[i] !== b[i]) {
      x = a[i]
      y = b[i]
      break
    }
  }

  if (x < y) return -1
  if (y < x) return 1
  return 0
}

Buffer.isEncoding = function isEncoding (encoding) {
  switch (String(encoding).toLowerCase()) {
    case 'hex':
    case 'utf8':
    case 'utf-8':
    case 'ascii':
    case 'latin1':
    case 'binary':
    case 'base64':
    case 'ucs2':
    case 'ucs-2':
    case 'utf16le':
    case 'utf-16le':
      return true
    default:
      return false
  }
}

Buffer.concat = function concat (list, length) {
  if (!Array.isArray(list)) {
    throw new TypeError('"list" argument must be an Array of Buffers')
  }

  if (list.length === 0) {
    return Buffer.alloc(0)
  }

  var i
  if (length === undefined) {
    length = 0
    for (i = 0; i < list.length; ++i) {
      length += list[i].length
    }
  }

  var buffer = Buffer.allocUnsafe(length)
  var pos = 0
  for (i = 0; i < list.length; ++i) {
    var buf = list[i]
    if (isInstance(buf, Uint8Array)) {
      buf = Buffer.from(buf)
    }
    if (!Buffer.isBuffer(buf)) {
      throw new TypeError('"list" argument must be an Array of Buffers')
    }
    buf.copy(buffer, pos)
    pos += buf.length
  }
  return buffer
}

function byteLength (string, encoding) {
  if (Buffer.isBuffer(string)) {
    return string.length
  }
  if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) {
    return string.byteLength
  }
  if (typeof string !== 'string') {
    throw new TypeError(
      'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' +
      'Received type ' + typeof string
    )
  }

  var len = string.length
  var mustMatch = (arguments.length > 2 && arguments[2] === true)
  if (!mustMatch && len === 0) return 0

  // Use a for loop to avoid recursion
  var loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'ascii':
      case 'latin1':
      case 'binary':
        return len
      case 'utf8':
      case 'utf-8':
        return utf8ToBytes(string).length
      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return len * 2
      case 'hex':
        return len >>> 1
      case 'base64':
        return base64ToBytes(string).length
      default:
        if (loweredCase) {
          return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8
        }
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}
Buffer.byteLength = byteLength

function slowToString (encoding, start, end) {
  var loweredCase = false

  // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
  // property of a typed array.

  // This behaves neither like String nor Uint8Array in that we set start/end
  // to their upper/lower bounds if the value passed is out of range.
  // undefined is handled specially as per ECMA-262 6th Edition,
  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
  if (start === undefined || start < 0) {
    start = 0
  }
  // Return early if start > this.length. Done here to prevent potential uint32
  // coercion fail below.
  if (start > this.length) {
    return ''
  }

  if (end === undefined || end > this.length) {
    end = this.length
  }

  if (end <= 0) {
    return ''
  }

  // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
  end >>>= 0
  start >>>= 0

  if (end <= start) {
    return ''
  }

  if (!encoding) encoding = 'utf8'

  while (true) {
    switch (encoding) {
      case 'hex':
        return hexSlice(this, start, end)

      case 'utf8':
      case 'utf-8':
        return utf8Slice(this, start, end)

      case 'ascii':
        return asciiSlice(this, start, end)

      case 'latin1':
      case 'binary':
        return latin1Slice(this, start, end)

      case 'base64':
        return base64Slice(this, start, end)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return utf16leSlice(this, start, end)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = (encoding + '').toLowerCase()
        loweredCase = true
    }
  }
}

// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
// reliably in a browserify context because there could be multiple different
// copies of the 'buffer' package in use. This method works even for Buffer
// instances that were created from another copy of the `buffer` package.
// See: https://github.com/feross/buffer/issues/154
Buffer.prototype._isBuffer = true

function swap (b, n, m) {
  var i = b[n]
  b[n] = b[m]
  b[m] = i
}

Buffer.prototype.swap16 = function swap16 () {
  var len = this.length
  if (len % 2 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 16-bits')
  }
  for (var i = 0; i < len; i += 2) {
    swap(this, i, i + 1)
  }
  return this
}

Buffer.prototype.swap32 = function swap32 () {
  var len = this.length
  if (len % 4 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 32-bits')
  }
  for (var i = 0; i < len; i += 4) {
    swap(this, i, i + 3)
    swap(this, i + 1, i + 2)
  }
  return this
}

Buffer.prototype.swap64 = function swap64 () {
  var len = this.length
  if (len % 8 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 64-bits')
  }
  for (var i = 0; i < len; i += 8) {
    swap(this, i, i + 7)
    swap(this, i + 1, i + 6)
    swap(this, i + 2, i + 5)
    swap(this, i + 3, i + 4)
  }
  return this
}

Buffer.prototype.toString = function toString () {
  var length = this.length
  if (length === 0) return ''
  if (arguments.length === 0) return utf8Slice(this, 0, length)
  return slowToString.apply(this, arguments)
}

Buffer.prototype.toLocaleString = Buffer.prototype.toString

Buffer.prototype.equals = function equals (b) {
  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
  if (this === b) return true
  return Buffer.compare(this, b) === 0
}

Buffer.prototype.inspect = function inspect () {
  var str = ''
  var max = exports.INSPECT_MAX_BYTES
  str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim()
  if (this.length > max) str += ' ... '
  return '<Buffer ' + str + '>'
}

Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
  if (isInstance(target, Uint8Array)) {
    target = Buffer.from(target, target.offset, target.byteLength)
  }
  if (!Buffer.isBuffer(target)) {
    throw new TypeError(
      'The "target" argument must be one of type Buffer or Uint8Array. ' +
      'Received type ' + (typeof target)
    )
  }

  if (start === undefined) {
    start = 0
  }
  if (end === undefined) {
    end = target ? target.length : 0
  }
  if (thisStart === undefined) {
    thisStart = 0
  }
  if (thisEnd === undefined) {
    thisEnd = this.length
  }

  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
    throw new RangeError('out of range index')
  }

  if (thisStart >= thisEnd && start >= end) {
    return 0
  }
  if (thisStart >= thisEnd) {
    return -1
  }
  if (start >= end) {
    return 1
  }

  start >>>= 0
  end >>>= 0
  thisStart >>>= 0
  thisEnd >>>= 0

  if (this === target) return 0

  var x = thisEnd - thisStart
  var y = end - start
  var len = Math.min(x, y)

  var thisCopy = this.slice(thisStart, thisEnd)
  var targetCopy = target.slice(start, end)

  for (var i = 0; i < len; ++i) {
    if (thisCopy[i] !== targetCopy[i]) {
      x = thisCopy[i]
      y = targetCopy[i]
      break
    }
  }

  if (x < y) return -1
  if (y < x) return 1
  return 0
}

// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
//
// Arguments:
// - buffer - a Buffer to search
// - val - a string, Buffer, or number
// - byteOffset - an index into `buffer`; will be clamped to an int32
// - encoding - an optional encoding, relevant is val is a string
// - dir - true for indexOf, false for lastIndexOf
function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
  // Empty buffer means no match
  if (buffer.length === 0) return -1

  // Normalize byteOffset
  if (typeof byteOffset === 'string') {
    encoding = byteOffset
    byteOffset = 0
  } else if (byteOffset > 0x7fffffff) {
    byteOffset = 0x7fffffff
  } else if (byteOffset < -0x80000000) {
    byteOffset = -0x80000000
  }
  byteOffset = +byteOffset // Coerce to Number.
  if (numberIsNaN(byteOffset)) {
    // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
    byteOffset = dir ? 0 : (buffer.length - 1)
  }

  // Normalize byteOffset: negative offsets start from the end of the buffer
  if (byteOffset < 0) byteOffset = buffer.length + byteOffset
  if (byteOffset >= buffer.length) {
    if (dir) return -1
    else byteOffset = buffer.length - 1
  } else if (byteOffset < 0) {
    if (dir) byteOffset = 0
    else return -1
  }

  // Normalize val
  if (typeof val === 'string') {
    val = Buffer.from(val, encoding)
  }

  // Finally, search either indexOf (if dir is true) or lastIndexOf
  if (Buffer.isBuffer(val)) {
    // Special case: looking for empty string/buffer always fails
    if (val.length === 0) {
      return -1
    }
    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
  } else if (typeof val === 'number') {
    val = val & 0xFF // Search for a byte value [0-255]
    if (typeof Uint8Array.prototype.indexOf === 'function') {
      if (dir) {
        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
      } else {
        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
      }
    }
    return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
  }

  throw new TypeError('val must be string, number or Buffer')
}

function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
  var indexSize = 1
  var arrLength = arr.length
  var valLength = val.length

  if (encoding !== undefined) {
    encoding = String(encoding).toLowerCase()
    if (encoding === 'ucs2' || encoding === 'ucs-2' ||
        encoding === 'utf16le' || encoding === 'utf-16le') {
      if (arr.length < 2 || val.length < 2) {
        return -1
      }
      indexSize = 2
      arrLength /= 2
      valLength /= 2
      byteOffset /= 2
    }
  }

  function read (buf, i) {
    if (indexSize === 1) {
      return buf[i]
    } else {
      return buf.readUInt16BE(i * indexSize)
    }
  }

  var i
  if (dir) {
    var foundIndex = -1
    for (i = byteOffset; i < arrLength; i++) {
      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
        if (foundIndex === -1) foundIndex = i
        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
      } else {
        if (foundIndex !== -1) i -= i - foundIndex
        foundIndex = -1
      }
    }
  } else {
    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
    for (i = byteOffset; i >= 0; i--) {
      var found = true
      for (var j = 0; j < valLength; j++) {
        if (read(arr, i + j) !== read(val, j)) {
          found = false
          break
        }
      }
      if (found) return i
    }
  }

  return -1
}

Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
  return this.indexOf(val, byteOffset, encoding) !== -1
}

Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
}

Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
}

function hexWrite (buf, string, offset, length) {
  offset = Number(offset) || 0
  var remaining = buf.length - offset
  if (!length) {
    length = remaining
  } else {
    length = Number(length)
    if (length > remaining) {
      length = remaining
    }
  }

  var strLen = string.length

  if (length > strLen / 2) {
    length = strLen / 2
  }
  for (var i = 0; i < length; ++i) {
    var parsed = parseInt(string.substr(i * 2, 2), 16)
    if (numberIsNaN(parsed)) return i
    buf[offset + i] = parsed
  }
  return i
}

function utf8Write (buf, string, offset, length) {
  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
}

function asciiWrite (buf, string, offset, length) {
  return blitBuffer(asciiToBytes(string), buf, offset, length)
}

function latin1Write (buf, string, offset, length) {
  return asciiWrite(buf, string, offset, length)
}

function base64Write (buf, string, offset, length) {
  return blitBuffer(base64ToBytes(string), buf, offset, length)
}

function ucs2Write (buf, string, offset, length) {
  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
}

Buffer.prototype.write = function write (string, offset, length, encoding) {
  // Buffer#write(string)
  if (offset === undefined) {
    encoding = 'utf8'
    length = this.length
    offset = 0
  // Buffer#write(string, encoding)
  } else if (length === undefined && typeof offset === 'string') {
    encoding = offset
    length = this.length
    offset = 0
  // Buffer#write(string, offset[, length][, encoding])
  } else if (isFinite(offset)) {
    offset = offset >>> 0
    if (isFinite(length)) {
      length = length >>> 0
      if (encoding === undefined) encoding = 'utf8'
    } else {
      encoding = length
      length = undefined
    }
  } else {
    throw new Error(
      'Buffer.write(string, encoding, offset[, length]) is no longer supported'
    )
  }

  var remaining = this.length - offset
  if (length === undefined || length > remaining) length = remaining

  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
    throw new RangeError('Attempt to write outside buffer bounds')
  }

  if (!encoding) encoding = 'utf8'

  var loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'hex':
        return hexWrite(this, string, offset, length)

      case 'utf8':
      case 'utf-8':
        return utf8Write(this, string, offset, length)

      case 'ascii':
        return asciiWrite(this, string, offset, length)

      case 'latin1':
      case 'binary':
        return latin1Write(this, string, offset, length)

      case 'base64':
        // Warning: maxLength not taken into account in base64Write
        return base64Write(this, string, offset, length)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return ucs2Write(this, string, offset, length)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}

Buffer.prototype.toJSON = function toJSON () {
  return {
    type: 'Buffer',
    data: Array.prototype.slice.call(this._arr || this, 0)
  }
}

function base64Slice (buf, start, end) {
  if (start === 0 && end === buf.length) {
    return base64.fromByteArray(buf)
  } else {
    return base64.fromByteArray(buf.slice(start, end))
  }
}

function utf8Slice (buf, start, end) {
  end = Math.min(buf.length, end)
  var res = []

  var i = start
  while (i < end) {
    var firstByte = buf[i]
    var codePoint = null
    var bytesPerSequence = (firstByte > 0xEF) ? 4
      : (firstByte > 0xDF) ? 3
        : (firstByte > 0xBF) ? 2
          : 1

    if (i + bytesPerSequence <= end) {
      var secondByte, thirdByte, fourthByte, tempCodePoint

      switch (bytesPerSequence) {
        case 1:
          if (firstByte < 0x80) {
            codePoint = firstByte
          }
          break
        case 2:
          secondByte = buf[i + 1]
          if ((secondByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
            if (tempCodePoint > 0x7F) {
              codePoint = tempCodePoint
            }
          }
          break
        case 3:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
              codePoint = tempCodePoint
            }
          }
          break
        case 4:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          fourthByte = buf[i + 3]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
              codePoint = tempCodePoint
            }
          }
      }
    }

    if (codePoint === null) {
      // we did not generate a valid codePoint so insert a
      // replacement char (U+FFFD) and advance only 1 byte
      codePoint = 0xFFFD
      bytesPerSequence = 1
    } else if (codePoint > 0xFFFF) {
      // encode to utf16 (surrogate pair dance)
      codePoint -= 0x10000
      res.push(codePoint >>> 10 & 0x3FF | 0xD800)
      codePoint = 0xDC00 | codePoint & 0x3FF
    }

    res.push(codePoint)
    i += bytesPerSequence
  }

  return decodeCodePointsArray(res)
}

// Based on http://stackoverflow.com/a/22747272/680742, the browser with
// the lowest limit is Chrome, with 0x10000 args.
// We go 1 magnitude less, for safety
var MAX_ARGUMENTS_LENGTH = 0x1000

function decodeCodePointsArray (codePoints) {
  var len = codePoints.length
  if (len <= MAX_ARGUMENTS_LENGTH) {
    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
  }

  // Decode in chunks to avoid "call stack size exceeded".
  var res = ''
  var i = 0
  while (i < len) {
    res += String.fromCharCode.apply(
      String,
      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
    )
  }
  return res
}

function asciiSlice (buf, start, end) {
  var ret = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; ++i) {
    ret += String.fromCharCode(buf[i] & 0x7F)
  }
  return ret
}

function latin1Slice (buf, start, end) {
  var ret = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; ++i) {
    ret += String.fromCharCode(buf[i])
  }
  return ret
}

function hexSlice (buf, start, end) {
  var len = buf.length

  if (!start || start < 0) start = 0
  if (!end || end < 0 || end > len) end = len

  var out = ''
  for (var i = start; i < end; ++i) {
    out += toHex(buf[i])
  }
  return out
}

function utf16leSlice (buf, start, end) {
  var bytes = buf.slice(start, end)
  var res = ''
  for (var i = 0; i < bytes.length; i += 2) {
    res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
  }
  return res
}

Buffer.prototype.slice = function slice (start, end) {
  var len = this.length
  start = ~~start
  end = end === undefined ? len : ~~end

  if (start < 0) {
    start += len
    if (start < 0) start = 0
  } else if (start > len) {
    start = len
  }

  if (end < 0) {
    end += len
    if (end < 0) end = 0
  } else if (end > len) {
    end = len
  }

  if (end < start) end = start

  var newBuf = this.subarray(start, end)
  // Return an augmented `Uint8Array` instance
  newBuf.__proto__ = Buffer.prototype
  return newBuf
}

/*
 * Need to make sure that buffer isn't trying to write out of bounds.
 */
function checkOffset (offset, ext, length) {
  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
}

Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var val = this[offset]
  var mul = 1
  var i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }

  return val
}

Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) {
    checkOffset(offset, byteLength, this.length)
  }

  var val = this[offset + --byteLength]
  var mul = 1
  while (byteLength > 0 && (mul *= 0x100)) {
    val += this[offset + --byteLength] * mul
  }

  return val
}

Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 1, this.length)
  return this[offset]
}

Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  return this[offset] | (this[offset + 1] << 8)
}

Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  return (this[offset] << 8) | this[offset + 1]
}

Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return ((this[offset]) |
      (this[offset + 1] << 8) |
      (this[offset + 2] << 16)) +
      (this[offset + 3] * 0x1000000)
}

Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] * 0x1000000) +
    ((this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    this[offset + 3])
}

Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var val = this[offset]
  var mul = 1
  var i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var i = byteLength
  var mul = 1
  var val = this[offset + --i]
  while (i > 0 && (mul *= 0x100)) {
    val += this[offset + --i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 1, this.length)
  if (!(this[offset] & 0x80)) return (this[offset])
  return ((0xff - this[offset] + 1) * -1)
}

Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  var val = this[offset] | (this[offset + 1] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  var val = this[offset + 1] | (this[offset] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset]) |
    (this[offset + 1] << 8) |
    (this[offset + 2] << 16) |
    (this[offset + 3] << 24)
}

Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] << 24) |
    (this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    (this[offset + 3])
}

Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, true, 23, 4)
}

Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, false, 23, 4)
}

Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, true, 52, 8)
}

Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, false, 52, 8)
}

function checkInt (buf, value, offset, ext, max, min) {
  if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
  if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
  if (offset + ext > buf.length) throw new RangeError('Index out of range')
}

Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) {
    var maxBytes = Math.pow(2, 8 * byteLength) - 1
    checkInt(this, value, offset, byteLength, maxBytes, 0)
  }

  var mul = 1
  var i = 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) {
    var maxBytes = Math.pow(2, 8 * byteLength) - 1
    checkInt(this, value, offset, byteLength, maxBytes, 0)
  }

  var i = byteLength - 1
  var mul = 1
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
  this[offset] = (value & 0xff)
  return offset + 1
}

Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  this[offset] = (value & 0xff)
  this[offset + 1] = (value >>> 8)
  return offset + 2
}

Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  this[offset] = (value >>> 8)
  this[offset + 1] = (value & 0xff)
  return offset + 2
}

Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  this[offset + 3] = (value >>> 24)
  this[offset + 2] = (value >>> 16)
  this[offset + 1] = (value >>> 8)
  this[offset] = (value & 0xff)
  return offset + 4
}

Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  this[offset] = (value >>> 24)
  this[offset + 1] = (value >>> 16)
  this[offset + 2] = (value >>> 8)
  this[offset + 3] = (value & 0xff)
  return offset + 4
}

Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    var limit = Math.pow(2, (8 * byteLength) - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  var i = 0
  var mul = 1
  var sub = 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
      sub = 1
    }
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    var limit = Math.pow(2, (8 * byteLength) - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  var i = byteLength - 1
  var mul = 1
  var sub = 0
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
      sub = 1
    }
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
  if (value < 0) value = 0xff + value + 1
  this[offset] = (value & 0xff)
  return offset + 1
}

Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  this[offset] = (value & 0xff)
  this[offset + 1] = (value >>> 8)
  return offset + 2
}

Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  this[offset] = (value >>> 8)
  this[offset + 1] = (value & 0xff)
  return offset + 2
}

Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  this[offset] = (value & 0xff)
  this[offset + 1] = (value >>> 8)
  this[offset + 2] = (value >>> 16)
  this[offset + 3] = (value >>> 24)
  return offset + 4
}

Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  if (value < 0) value = 0xffffffff + value + 1
  this[offset] = (value >>> 24)
  this[offset + 1] = (value >>> 16)
  this[offset + 2] = (value >>> 8)
  this[offset + 3] = (value & 0xff)
  return offset + 4
}

function checkIEEE754 (buf, value, offset, ext, max, min) {
  if (offset + ext > buf.length) throw new RangeError('Index out of range')
  if (offset < 0) throw new RangeError('Index out of range')
}

function writeFloat (buf, value, offset, littleEndian, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
  }
  ieee754.write(buf, value, offset, littleEndian, 23, 4)
  return offset + 4
}

Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
  return writeFloat(this, value, offset, true, noAssert)
}

Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
  return writeFloat(this, value, offset, false, noAssert)
}

function writeDouble (buf, value, offset, littleEndian, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
  }
  ieee754.write(buf, value, offset, littleEndian, 52, 8)
  return offset + 8
}

Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
  return writeDouble(this, value, offset, true, noAssert)
}

Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
  return writeDouble(this, value, offset, false, noAssert)
}

// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
Buffer.prototype.copy = function copy (target, targetStart, start, end) {
  if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer')
  if (!start) start = 0
  if (!end && end !== 0) end = this.length
  if (targetStart >= target.length) targetStart = target.length
  if (!targetStart) targetStart = 0
  if (end > 0 && end < start) end = start

  // Copy 0 bytes; we're done
  if (end === start) return 0
  if (target.length === 0 || this.length === 0) return 0

  // Fatal error conditions
  if (targetStart < 0) {
    throw new RangeError('targetStart out of bounds')
  }
  if (start < 0 || start >= this.length) throw new RangeError('Index out of range')
  if (end < 0) throw new RangeError('sourceEnd out of bounds')

  // Are we oob?
  if (end > this.length) end = this.length
  if (target.length - targetStart < end - start) {
    end = target.length - targetStart + start
  }

  var len = end - start

  if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') {
    // Use built-in when available, missing from IE11
    this.copyWithin(targetStart, start, end)
  } else if (this === target && start < targetStart && targetStart < end) {
    // descending copy from end
    for (var i = len - 1; i >= 0; --i) {
      target[i + targetStart] = this[i + start]
    }
  } else {
    Uint8Array.prototype.set.call(
      target,
      this.subarray(start, end),
      targetStart
    )
  }

  return len
}

// Usage:
//    buffer.fill(number[, offset[, end]])
//    buffer.fill(buffer[, offset[, end]])
//    buffer.fill(string[, offset[, end]][, encoding])
Buffer.prototype.fill = function fill (val, start, end, encoding) {
  // Handle string cases:
  if (typeof val === 'string') {
    if (typeof start === 'string') {
      encoding = start
      start = 0
      end = this.length
    } else if (typeof end === 'string') {
      encoding = end
      end = this.length
    }
    if (encoding !== undefined && typeof encoding !== 'string') {
      throw new TypeError('encoding must be a string')
    }
    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
      throw new TypeError('Unknown encoding: ' + encoding)
    }
    if (val.length === 1) {
      var code = val.charCodeAt(0)
      if ((encoding === 'utf8' && code < 128) ||
          encoding === 'latin1') {
        // Fast path: If `val` fits into a single byte, use that numeric value.
        val = code
      }
    }
  } else if (typeof val === 'number') {
    val = val & 255
  }

  // Invalid ranges are not set to a default, so can range check early.
  if (start < 0 || this.length < start || this.length < end) {
    throw new RangeError('Out of range index')
  }

  if (end <= start) {
    return this
  }

  start = start >>> 0
  end = end === undefined ? this.length : end >>> 0

  if (!val) val = 0

  var i
  if (typeof val === 'number') {
    for (i = start; i < end; ++i) {
      this[i] = val
    }
  } else {
    var bytes = Buffer.isBuffer(val)
      ? val
      : Buffer.from(val, encoding)
    var len = bytes.length
    if (len === 0) {
      throw new TypeError('The value "' + val +
        '" is invalid for argument "value"')
    }
    for (i = 0; i < end - start; ++i) {
      this[i + start] = bytes[i % len]
    }
  }

  return this
}

// HELPER FUNCTIONS
// ================

var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g

function base64clean (str) {
  // Node takes equal signs as end of the Base64 encoding
  str = str.split('=')[0]
  // Node strips out invalid characters like \n and \t from the string, base64-js does not
  str = str.trim().replace(INVALID_BASE64_RE, '')
  // Node converts strings with length < 2 to ''
  if (str.length < 2) return ''
  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
  while (str.length % 4 !== 0) {
    str = str + '='
  }
  return str
}

function toHex (n) {
  if (n < 16) return '0' + n.toString(16)
  return n.toString(16)
}

function utf8ToBytes (string, units) {
  units = units || Infinity
  var codePoint
  var length = string.length
  var leadSurrogate = null
  var bytes = []

  for (var i = 0; i < length; ++i) {
    codePoint = string.charCodeAt(i)

    // is surrogate component
    if (codePoint > 0xD7FF && codePoint < 0xE000) {
      // last char was a lead
      if (!leadSurrogate) {
        // no lead yet
        if (codePoint > 0xDBFF) {
          // unexpected trail
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        } else if (i + 1 === length) {
          // unpaired lead
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        }

        // valid lead
        leadSurrogate = codePoint

        continue
      }

      // 2 leads in a row
      if (codePoint < 0xDC00) {
        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
        leadSurrogate = codePoint
        continue
      }

      // valid surrogate pair
      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
    } else if (leadSurrogate) {
      // valid bmp char, but last char was a lead
      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
    }

    leadSurrogate = null

    // encode utf8
    if (codePoint < 0x80) {
      if ((units -= 1) < 0) break
      bytes.push(codePoint)
    } else if (codePoint < 0x800) {
      if ((units -= 2) < 0) break
      bytes.push(
        codePoint >> 0x6 | 0xC0,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x10000) {
      if ((units -= 3) < 0) break
      bytes.push(
        codePoint >> 0xC | 0xE0,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x110000) {
      if ((units -= 4) < 0) break
      bytes.push(
        codePoint >> 0x12 | 0xF0,
        codePoint >> 0xC & 0x3F | 0x80,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else {
      throw new Error('Invalid code point')
    }
  }

  return bytes
}

function asciiToBytes (str) {
  var byteArray = []
  for (var i = 0; i < str.length; ++i) {
    // Node's code seems to be doing this and not & 0x7F..
    byteArray.push(str.charCodeAt(i) & 0xFF)
  }
  return byteArray
}

function utf16leToBytes (str, units) {
  var c, hi, lo
  var byteArray = []
  for (var i = 0; i < str.length; ++i) {
    if ((units -= 2) < 0) break

    c = str.charCodeAt(i)
    hi = c >> 8
    lo = c % 256
    byteArray.push(lo)
    byteArray.push(hi)
  }

  return byteArray
}

function base64ToBytes (str) {
  return base64.toByteArray(base64clean(str))
}

function blitBuffer (src, dst, offset, length) {
  for (var i = 0; i < length; ++i) {
    if ((i + offset >= dst.length) || (i >= src.length)) break
    dst[i + offset] = src[i]
  }
  return i
}

// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass
// the `instanceof` check but they should be treated as of that type.
// See: https://github.com/feross/buffer/issues/166
function isInstance (obj, type) {
  return obj instanceof type ||
    (obj != null && obj.constructor != null && obj.constructor.name != null &&
      obj.constructor.name === type.name)
}
function numberIsNaN (obj) {
  // For IE11 support
  return obj !== obj // eslint-disable-line no-self-compare
}

}).call(this,require("buffer").Buffer)
},{"base64-js":77,"buffer":99,"ieee754":299}],100:[function(require,module,exports){
module.exports = {
  "100": "Continue",
  "101": "Switching Protocols",
  "102": "Processing",
  "200": "OK",
  "201": "Created",
  "202": "Accepted",
  "203": "Non-Authoritative Information",
  "204": "No Content",
  "205": "Reset Content",
  "206": "Partial Content",
  "207": "Multi-Status",
  "208": "Already Reported",
  "226": "IM Used",
  "300": "Multiple Choices",
  "301": "Moved Permanently",
  "302": "Found",
  "303": "See Other",
  "304": "Not Modified",
  "305": "Use Proxy",
  "307": "Temporary Redirect",
  "308": "Permanent Redirect",
  "400": "Bad Request",
  "401": "Unauthorized",
  "402": "Payment Required",
  "403": "Forbidden",
  "404": "Not Found",
  "405": "Method Not Allowed",
  "406": "Not Acceptable",
  "407": "Proxy Authentication Required",
  "408": "Request Timeout",
  "409": "Conflict",
  "410": "Gone",
  "411": "Length Required",
  "412": "Precondition Failed",
  "413": "Payload Too Large",
  "414": "URI Too Long",
  "415": "Unsupported Media Type",
  "416": "Range Not Satisfiable",
  "417": "Expectation Failed",
  "418": "I'm a teapot",
  "421": "Misdirected Request",
  "422": "Unprocessable Entity",
  "423": "Locked",
  "424": "Failed Dependency",
  "425": "Unordered Collection",
  "426": "Upgrade Required",
  "428": "Precondition Required",
  "429": "Too Many Requests",
  "431": "Request Header Fields Too Large",
  "451": "Unavailable For Legal Reasons",
  "500": "Internal Server Error",
  "501": "Not Implemented",
  "502": "Bad Gateway",
  "503": "Service Unavailable",
  "504": "Gateway Timeout",
  "505": "HTTP Version Not Supported",
  "506": "Variant Also Negotiates",
  "507": "Insufficient Storage",
  "508": "Loop Detected",
  "509": "Bandwidth Limit Exceeded",
  "510": "Not Extended",
  "511": "Network Authentication Required"
}

},{}],101:[function(require,module,exports){
/*!
 * copy-to - index.js
 * Copyright(c) 2014 dead_horse <dead_horse@qq.com>
 * MIT Licensed
 */

'use strict';

/**
 * slice() reference.
 */

var slice = Array.prototype.slice;

/**
 * Expose copy
 *
 * ```
 * copy({foo: 'nar', hello: 'copy'}).to({hello: 'world'});
 * copy({foo: 'nar', hello: 'copy'}).toCover({hello: 'world'});
 * ```
 *
 * @param {Object} src
 * @return {Copy}
 */

module.exports = Copy;


/**
 * Copy
 * @param {Object} src
 * @param {Boolean} withAccess
 */

function Copy(src, withAccess) {
  if (!(this instanceof Copy)) return new Copy(src, withAccess);
  this.src = src;
  this._withAccess = withAccess;
}

/**
 * copy properties include getter and setter
 * @param {[type]} val [description]
 * @return {[type]} [description]
 */

Copy.prototype.withAccess = function (w) {
  this._withAccess = w !== false;
  return this;
};

/**
 * pick keys in src
 *
 * @api: public
 */

Copy.prototype.pick = function(keys) {
  if (!Array.isArray(keys)) {
    keys = slice.call(arguments);
  }
  if (keys.length) {
    this.keys = keys;
  }
  return this;
};

/**
 * copy src to target,
 * do not cover any property target has
 * @param {Object} to
 *
 * @api: public
 */

Copy.prototype.to = function(to) {
  to = to || {};

  if (!this.src) return to;
  var keys = this.keys || Object.keys(this.src);

  if (!this._withAccess) {
    for (var i = 0; i < keys.length; i++) {
      key = keys[i];
      if (to[key] !== undefined) continue;
      to[key] = this.src[key];
    }
    return to;
  }

  for (var i = 0; i < keys.length; i++) {
    var key = keys[i];
    if (!notDefined(to, key)) continue;
    var getter = this.src.__lookupGetter__(key);
    var setter = this.src.__lookupSetter__(key);
    if (getter) to.__defineGetter__(key, getter);
    if (setter) to.__defineSetter__(key, setter);

    if (!getter && !setter) {
      to[key] = this.src[key];
    }
  }
  return to;
};

/**
 * copy src to target,
 * override any property target has
 * @param {Object} to
 *
 * @api: public
 */

Copy.prototype.toCover = function(to) {
  var keys = this.keys || Object.keys(this.src);

  for (var i = 0; i < keys.length; i++) {
    var key = keys[i];
    delete to[key];
    var getter = this.src.__lookupGetter__(key);
    var setter = this.src.__lookupSetter__(key);
    if (getter) to.__defineGetter__(key, getter);
    if (setter) to.__defineSetter__(key, setter);

    if (!getter && !setter) {
      to[key] = this.src[key];
    }
  }
};

Copy.prototype.override = Copy.prototype.toCover;

/**
 * append another object to src
 * @param {Obj} obj
 * @return {Copy}
 */

Copy.prototype.and = function (obj) {
  var src = {};
  this.to(src);
  this.src = obj;
  this.to(src);
  this.src = src;

  return this;
};

/**
 * check obj[key] if not defiend
 * @param {Object} obj
 * @param {String} key
 * @return {Boolean}
 */

function notDefined(obj, key) {
  return obj[key] === undefined
    && obj.__lookupGetter__(key) === undefined
    && obj.__lookupSetter__(key) === undefined;
}

},{}],102:[function(require,module,exports){
module.exports = function (it) {
  if (typeof it != 'function') {
    throw TypeError(String(it) + ' is not a function');
  } return it;
};

},{}],103:[function(require,module,exports){
var isObject = require('../internals/is-object');

module.exports = function (it) {
  if (!isObject(it) && it !== null) {
    throw TypeError("Can't set " + String(it) + ' as a prototype');
  } return it;
};

},{"../internals/is-object":164}],104:[function(require,module,exports){
var wellKnownSymbol = require('../internals/well-known-symbol');
var create = require('../internals/object-create');
var definePropertyModule = require('../internals/object-define-property');

var UNSCOPABLES = wellKnownSymbol('unscopables');
var ArrayPrototype = Array.prototype;

// Array.prototype[@@unscopables]
// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables
if (ArrayPrototype[UNSCOPABLES] == undefined) {
  definePropertyModule.f(ArrayPrototype, UNSCOPABLES, {
    configurable: true,
    value: create(null)
  });
}

// add a key to Array.prototype[@@unscopables]
module.exports = function (key) {
  ArrayPrototype[UNSCOPABLES][key] = true;
};

},{"../internals/object-create":178,"../internals/object-define-property":180,"../internals/well-known-symbol":231}],105:[function(require,module,exports){
'use strict';
var charAt = require('../internals/string-multibyte').charAt;

// `AdvanceStringIndex` abstract operation
// https://tc39.github.io/ecma262/#sec-advancestringindex
module.exports = function (S, index, unicode) {
  return index + (unicode ? charAt(S, index).length : 1);
};

},{"../internals/string-multibyte":211}],106:[function(require,module,exports){
module.exports = function (it, Constructor, name) {
  if (!(it instanceof Constructor)) {
    throw TypeError('Incorrect ' + (name ? name + ' ' : '') + 'invocation');
  } return it;
};

},{}],107:[function(require,module,exports){
var isObject = require('../internals/is-object');

module.exports = function (it) {
  if (!isObject(it)) {
    throw TypeError(String(it) + ' is not an object');
  } return it;
};

},{"../internals/is-object":164}],108:[function(require,module,exports){
module.exports = typeof ArrayBuffer !== 'undefined' && typeof DataView !== 'undefined';

},{}],109:[function(require,module,exports){
'use strict';
var NATIVE_ARRAY_BUFFER = require('../internals/array-buffer-native');
var DESCRIPTORS = require('../internals/descriptors');
var global = require('../internals/global');
var isObject = require('../internals/is-object');
var has = require('../internals/has');
var classof = require('../internals/classof');
var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');
var redefine = require('../internals/redefine');
var defineProperty = require('../internals/object-define-property').f;
var getPrototypeOf = require('../internals/object-get-prototype-of');
var setPrototypeOf = require('../internals/object-set-prototype-of');
var wellKnownSymbol = require('../internals/well-known-symbol');
var uid = require('../internals/uid');

var Int8Array = global.Int8Array;
var Int8ArrayPrototype = Int8Array && Int8Array.prototype;
var Uint8ClampedArray = global.Uint8ClampedArray;
var Uint8ClampedArrayPrototype = Uint8ClampedArray && Uint8ClampedArray.prototype;
var TypedArray = Int8Array && getPrototypeOf(Int8Array);
var TypedArrayPrototype = Int8ArrayPrototype && getPrototypeOf(Int8ArrayPrototype);
var ObjectPrototype = Object.prototype;
var isPrototypeOf = ObjectPrototype.isPrototypeOf;

var TO_STRING_TAG = wellKnownSymbol('toStringTag');
var TYPED_ARRAY_TAG = uid('TYPED_ARRAY_TAG');
// Fixing native typed arrays in Opera Presto crashes the browser, see #595
var NATIVE_ARRAY_BUFFER_VIEWS = NATIVE_ARRAY_BUFFER && !!setPrototypeOf && classof(global.opera) !== 'Opera';
var TYPED_ARRAY_TAG_REQIRED = false;
var NAME;

var TypedArrayConstructorsList = {
  Int8Array: 1,
  Uint8Array: 1,
  Uint8ClampedArray: 1,
  Int16Array: 2,
  Uint16Array: 2,
  Int32Array: 4,
  Uint32Array: 4,
  Float32Array: 4,
  Float64Array: 8
};

var isView = function isView(it) {
  var klass = classof(it);
  return klass === 'DataView' || has(TypedArrayConstructorsList, klass);
};

var isTypedArray = function (it) {
  return isObject(it) && has(TypedArrayConstructorsList, classof(it));
};

var aTypedArray = function (it) {
  if (isTypedArray(it)) return it;
  throw TypeError('Target is not a typed array');
};

var aTypedArrayConstructor = function (C) {
  if (setPrototypeOf) {
    if (isPrototypeOf.call(TypedArray, C)) return C;
  } else for (var ARRAY in TypedArrayConstructorsList) if (has(TypedArrayConstructorsList, NAME)) {
    var TypedArrayConstructor = global[ARRAY];
    if (TypedArrayConstructor && (C === TypedArrayConstructor || isPrototypeOf.call(TypedArrayConstructor, C))) {
      return C;
    }
  } throw TypeError('Target is not a typed array constructor');
};

var exportTypedArrayMethod = function (KEY, property, forced) {
  if (!DESCRIPTORS) return;
  if (forced) for (var ARRAY in TypedArrayConstructorsList) {
    var TypedArrayConstructor = global[ARRAY];
    if (TypedArrayConstructor && has(TypedArrayConstructor.prototype, KEY)) {
      delete TypedArrayConstructor.prototype[KEY];
    }
  }
  if (!TypedArrayPrototype[KEY] || forced) {
    redefine(TypedArrayPrototype, KEY, forced ? property
      : NATIVE_ARRAY_BUFFER_VIEWS && Int8ArrayPrototype[KEY] || property);
  }
};

var exportTypedArrayStaticMethod = function (KEY, property, forced) {
  var ARRAY, TypedArrayConstructor;
  if (!DESCRIPTORS) return;
  if (setPrototypeOf) {
    if (forced) for (ARRAY in TypedArrayConstructorsList) {
      TypedArrayConstructor = global[ARRAY];
      if (TypedArrayConstructor && has(TypedArrayConstructor, KEY)) {
        delete TypedArrayConstructor[KEY];
      }
    }
    if (!TypedArray[KEY] || forced) {
      // V8 ~ Chrome 49-50 `%TypedArray%` methods are non-writable non-configurable
      try {
        return redefine(TypedArray, KEY, forced ? property : NATIVE_ARRAY_BUFFER_VIEWS && Int8Array[KEY] || property);
      } catch (error) { /* empty */ }
    } else return;
  }
  for (ARRAY in TypedArrayConstructorsList) {
    TypedArrayConstructor = global[ARRAY];
    if (TypedArrayConstructor && (!TypedArrayConstructor[KEY] || forced)) {
      redefine(TypedArrayConstructor, KEY, property);
    }
  }
};

for (NAME in TypedArrayConstructorsList) {
  if (!global[NAME]) NATIVE_ARRAY_BUFFER_VIEWS = false;
}

// WebKit bug - typed arrays constructors prototype is Object.prototype
if (!NATIVE_ARRAY_BUFFER_VIEWS || typeof TypedArray != 'function' || TypedArray === Function.prototype) {
  // eslint-disable-next-line no-shadow
  TypedArray = function TypedArray() {
    throw TypeError('Incorrect invocation');
  };
  if (NATIVE_ARRAY_BUFFER_VIEWS) for (NAME in TypedArrayConstructorsList) {
    if (global[NAME]) setPrototypeOf(global[NAME], TypedArray);
  }
}

if (!NATIVE_ARRAY_BUFFER_VIEWS || !TypedArrayPrototype || TypedArrayPrototype === ObjectPrototype) {
  TypedArrayPrototype = TypedArray.prototype;
  if (NATIVE_ARRAY_BUFFER_VIEWS) for (NAME in TypedArrayConstructorsList) {
    if (global[NAME]) setPrototypeOf(global[NAME].prototype, TypedArrayPrototype);
  }
}

// WebKit bug - one more object in Uint8ClampedArray prototype chain
if (NATIVE_ARRAY_BUFFER_VIEWS && getPrototypeOf(Uint8ClampedArrayPrototype) !== TypedArrayPrototype) {
  setPrototypeOf(Uint8ClampedArrayPrototype, TypedArrayPrototype);
}

if (DESCRIPTORS && !has(TypedArrayPrototype, TO_STRING_TAG)) {
  TYPED_ARRAY_TAG_REQIRED = true;
  defineProperty(TypedArrayPrototype, TO_STRING_TAG, { get: function () {
    return isObject(this) ? this[TYPED_ARRAY_TAG] : undefined;
  } });
  for (NAME in TypedArrayConstructorsList) if (global[NAME]) {
    createNonEnumerableProperty(global[NAME], TYPED_ARRAY_TAG, NAME);
  }
}

module.exports = {
  NATIVE_ARRAY_BUFFER_VIEWS: NATIVE_ARRAY_BUFFER_VIEWS,
  TYPED_ARRAY_TAG: TYPED_ARRAY_TAG_REQIRED && TYPED_ARRAY_TAG,
  aTypedArray: aTypedArray,
  aTypedArrayConstructor: aTypedArrayConstructor,
  exportTypedArrayMethod: exportTypedArrayMethod,
  exportTypedArrayStaticMethod: exportTypedArrayStaticMethod,
  isView: isView,
  isTypedArray: isTypedArray,
  TypedArray: TypedArray,
  TypedArrayPrototype: TypedArrayPrototype
};

},{"../internals/array-buffer-native":108,"../internals/classof":126,"../internals/create-non-enumerable-property":131,"../internals/descriptors":136,"../internals/global":150,"../internals/has":151,"../internals/is-object":164,"../internals/object-define-property":180,"../internals/object-get-prototype-of":185,"../internals/object-set-prototype-of":189,"../internals/redefine":197,"../internals/uid":228,"../internals/well-known-symbol":231}],110:[function(require,module,exports){
'use strict';
var global = require('../internals/global');
var DESCRIPTORS = require('../internals/descriptors');
var NATIVE_ARRAY_BUFFER = require('../internals/array-buffer-native');
var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');
var redefineAll = require('../internals/redefine-all');
var fails = require('../internals/fails');
var anInstance = require('../internals/an-instance');
var toInteger = require('../internals/to-integer');
var toLength = require('../internals/to-length');
var toIndex = require('../internals/to-index');
var IEEE754 = require('../internals/ieee754');
var getPrototypeOf = require('../internals/object-get-prototype-of');
var setPrototypeOf = require('../internals/object-set-prototype-of');
var getOwnPropertyNames = require('../internals/object-get-own-property-names').f;
var defineProperty = require('../internals/object-define-property').f;
var arrayFill = require('../internals/array-fill');
var setToStringTag = require('../internals/set-to-string-tag');
var InternalStateModule = require('../internals/internal-state');

var getInternalState = InternalStateModule.get;
var setInternalState = InternalStateModule.set;
var ARRAY_BUFFER = 'ArrayBuffer';
var DATA_VIEW = 'DataView';
var PROTOTYPE = 'prototype';
var WRONG_LENGTH = 'Wrong length';
var WRONG_INDEX = 'Wrong index';
var NativeArrayBuffer = global[ARRAY_BUFFER];
var $ArrayBuffer = NativeArrayBuffer;
var $DataView = global[DATA_VIEW];
var $DataViewPrototype = $DataView && $DataView[PROTOTYPE];
var ObjectPrototype = Object.prototype;
var RangeError = global.RangeError;

var packIEEE754 = IEEE754.pack;
var unpackIEEE754 = IEEE754.unpack;

var packInt8 = function (number) {
  return [number & 0xFF];
};

var packInt16 = function (number) {
  return [number & 0xFF, number >> 8 & 0xFF];
};

var packInt32 = function (number) {
  return [number & 0xFF, number >> 8 & 0xFF, number >> 16 & 0xFF, number >> 24 & 0xFF];
};

var unpackInt32 = function (buffer) {
  return buffer[3] << 24 | buffer[2] << 16 | buffer[1] << 8 | buffer[0];
};

var packFloat32 = function (number) {
  return packIEEE754(number, 23, 4);
};

var packFloat64 = function (number) {
  return packIEEE754(number, 52, 8);
};

var addGetter = function (Constructor, key) {
  defineProperty(Constructor[PROTOTYPE], key, { get: function () { return getInternalState(this)[key]; } });
};

var get = function (view, count, index, isLittleEndian) {
  var intIndex = toIndex(index);
  var store = getInternalState(view);
  if (intIndex + count > store.byteLength) throw RangeError(WRONG_INDEX);
  var bytes = getInternalState(store.buffer).bytes;
  var start = intIndex + store.byteOffset;
  var pack = bytes.slice(start, start + count);
  return isLittleEndian ? pack : pack.reverse();
};

var set = function (view, count, index, conversion, value, isLittleEndian) {
  var intIndex = toIndex(index);
  var store = getInternalState(view);
  if (intIndex + count > store.byteLength) throw RangeError(WRONG_INDEX);
  var bytes = getInternalState(store.buffer).bytes;
  var start = intIndex + store.byteOffset;
  var pack = conversion(+value);
  for (var i = 0; i < count; i++) bytes[start + i] = pack[isLittleEndian ? i : count - i - 1];
};

if (!NATIVE_ARRAY_BUFFER) {
  $ArrayBuffer = function ArrayBuffer(length) {
    anInstance(this, $ArrayBuffer, ARRAY_BUFFER);
    var byteLength = toIndex(length);
    setInternalState(this, {
      bytes: arrayFill.call(new Array(byteLength), 0),
      byteLength: byteLength
    });
    if (!DESCRIPTORS) this.byteLength = byteLength;
  };

  $DataView = function DataView(buffer, byteOffset, byteLength) {
    anInstance(this, $DataView, DATA_VIEW);
    anInstance(buffer, $ArrayBuffer, DATA_VIEW);
    var bufferLength = getInternalState(buffer).byteLength;
    var offset = toInteger(byteOffset);
    if (offset < 0 || offset > bufferLength) throw RangeError('Wrong offset');
    byteLength = byteLength === undefined ? bufferLength - offset : toLength(byteLength);
    if (offset + byteLength > bufferLength) throw RangeError(WRONG_LENGTH);
    setInternalState(this, {
      buffer: buffer,
      byteLength: byteLength,
      byteOffset: offset
    });
    if (!DESCRIPTORS) {
      this.buffer = buffer;
      this.byteLength = byteLength;
      this.byteOffset = offset;
    }
  };

  if (DESCRIPTORS) {
    addGetter($ArrayBuffer, 'byteLength');
    addGetter($DataView, 'buffer');
    addGetter($DataView, 'byteLength');
    addGetter($DataView, 'byteOffset');
  }

  redefineAll($DataView[PROTOTYPE], {
    getInt8: function getInt8(byteOffset) {
      return get(this, 1, byteOffset)[0] << 24 >> 24;
    },
    getUint8: function getUint8(byteOffset) {
      return get(this, 1, byteOffset)[0];
    },
    getInt16: function getInt16(byteOffset /* , littleEndian */) {
      var bytes = get(this, 2, byteOffset, arguments.length > 1 ? arguments[1] : undefined);
      return (bytes[1] << 8 | bytes[0]) << 16 >> 16;
    },
    getUint16: function getUint16(byteOffset /* , littleEndian */) {
      var bytes = get(this, 2, byteOffset, arguments.length > 1 ? arguments[1] : undefined);
      return bytes[1] << 8 | bytes[0];
    },
    getInt32: function getInt32(byteOffset /* , littleEndian */) {
      return unpackInt32(get(this, 4, byteOffset, arguments.length > 1 ? arguments[1] : undefined));
    },
    getUint32: function getUint32(byteOffset /* , littleEndian */) {
      return unpackInt32(get(this, 4, byteOffset, arguments.length > 1 ? arguments[1] : undefined)) >>> 0;
    },
    getFloat32: function getFloat32(byteOffset /* , littleEndian */) {
      return unpackIEEE754(get(this, 4, byteOffset, arguments.length > 1 ? arguments[1] : undefined), 23);
    },
    getFloat64: function getFloat64(byteOffset /* , littleEndian */) {
      return unpackIEEE754(get(this, 8, byteOffset, arguments.length > 1 ? arguments[1] : undefined), 52);
    },
    setInt8: function setInt8(byteOffset, value) {
      set(this, 1, byteOffset, packInt8, value);
    },
    setUint8: function setUint8(byteOffset, value) {
      set(this, 1, byteOffset, packInt8, value);
    },
    setInt16: function setInt16(byteOffset, value /* , littleEndian */) {
      set(this, 2, byteOffset, packInt16, value, arguments.length > 2 ? arguments[2] : undefined);
    },
    setUint16: function setUint16(byteOffset, value /* , littleEndian */) {
      set(this, 2, byteOffset, packInt16, value, arguments.length > 2 ? arguments[2] : undefined);
    },
    setInt32: function setInt32(byteOffset, value /* , littleEndian */) {
      set(this, 4, byteOffset, packInt32, value, arguments.length > 2 ? arguments[2] : undefined);
    },
    setUint32: function setUint32(byteOffset, value /* , littleEndian */) {
      set(this, 4, byteOffset, packInt32, value, arguments.length > 2 ? arguments[2] : undefined);
    },
    setFloat32: function setFloat32(byteOffset, value /* , littleEndian */) {
      set(this, 4, byteOffset, packFloat32, value, arguments.length > 2 ? arguments[2] : undefined);
    },
    setFloat64: function setFloat64(byteOffset, value /* , littleEndian */) {
      set(this, 8, byteOffset, packFloat64, value, arguments.length > 2 ? arguments[2] : undefined);
    }
  });
} else {
  if (!fails(function () {
    NativeArrayBuffer(1);
  }) || !fails(function () {
    new NativeArrayBuffer(-1); // eslint-disable-line no-new
  }) || fails(function () {
    new NativeArrayBuffer(); // eslint-disable-line no-new
    new NativeArrayBuffer(1.5); // eslint-disable-line no-new
    new NativeArrayBuffer(NaN); // eslint-disable-line no-new
    return NativeArrayBuffer.name != ARRAY_BUFFER;
  })) {
    $ArrayBuffer = function ArrayBuffer(length) {
      anInstance(this, $ArrayBuffer);
      return new NativeArrayBuffer(toIndex(length));
    };
    var ArrayBufferPrototype = $ArrayBuffer[PROTOTYPE] = NativeArrayBuffer[PROTOTYPE];
    for (var keys = getOwnPropertyNames(NativeArrayBuffer), j = 0, key; keys.length > j;) {
      if (!((key = keys[j++]) in $ArrayBuffer)) {
        createNonEnumerableProperty($ArrayBuffer, key, NativeArrayBuffer[key]);
      }
    }
    ArrayBufferPrototype.constructor = $ArrayBuffer;
  }

  // WebKit bug - the same parent prototype for typed arrays and data view
  if (setPrototypeOf && getPrototypeOf($DataViewPrototype) !== ObjectPrototype) {
    setPrototypeOf($DataViewPrototype, ObjectPrototype);
  }

  // iOS Safari 7.x bug
  var testView = new $DataView(new $ArrayBuffer(2));
  var nativeSetInt8 = $DataViewPrototype.setInt8;
  testView.setInt8(0, 2147483648);
  testView.setInt8(1, 2147483649);
  if (testView.getInt8(0) || !testView.getInt8(1)) redefineAll($DataViewPrototype, {
    setInt8: function setInt8(byteOffset, value) {
      nativeSetInt8.call(this, byteOffset, value << 24 >> 24);
    },
    setUint8: function setUint8(byteOffset, value) {
      nativeSetInt8.call(this, byteOffset, value << 24 >> 24);
    }
  }, { unsafe: true });
}

setToStringTag($ArrayBuffer, ARRAY_BUFFER);
setToStringTag($DataView, DATA_VIEW);

module.exports = {
  ArrayBuffer: $ArrayBuffer,
  DataView: $DataView
};

},{"../internals/an-instance":106,"../internals/array-buffer-native":108,"../internals/array-fill":112,"../internals/create-non-enumerable-property":131,"../internals/descriptors":136,"../internals/fails":145,"../internals/global":150,"../internals/ieee754":156,"../internals/internal-state":160,"../internals/object-define-property":180,"../internals/object-get-own-property-names":183,"../internals/object-get-prototype-of":185,"../internals/object-set-prototype-of":189,"../internals/redefine-all":196,"../internals/set-to-string-tag":206,"../internals/to-index":216,"../internals/to-integer":218,"../internals/to-length":219}],111:[function(require,module,exports){
'use strict';
var toObject = require('../internals/to-object');
var toAbsoluteIndex = require('../internals/to-absolute-index');
var toLength = require('../internals/to-length');

var min = Math.min;

// `Array.prototype.copyWithin` method implementation
// https://tc39.github.io/ecma262/#sec-array.prototype.copywithin
module.exports = [].copyWithin || function copyWithin(target /* = 0 */, start /* = 0, end = @length */) {
  var O = toObject(this);
  var len = toLength(O.length);
  var to = toAbsoluteIndex(target, len);
  var from = toAbsoluteIndex(start, len);
  var end = arguments.length > 2 ? arguments[2] : undefined;
  var count = min((end === undefined ? len : toAbsoluteIndex(end, len)) - from, len - to);
  var inc = 1;
  if (from < to && to < from + count) {
    inc = -1;
    from += count - 1;
    to += count - 1;
  }
  while (count-- > 0) {
    if (from in O) O[to] = O[from];
    else delete O[to];
    to += inc;
    from += inc;
  } return O;
};

},{"../internals/to-absolute-index":215,"../internals/to-length":219,"../internals/to-object":220}],112:[function(require,module,exports){
'use strict';
var toObject = require('../internals/to-object');
var toAbsoluteIndex = require('../internals/to-absolute-index');
var toLength = require('../internals/to-length');

// `Array.prototype.fill` method implementation
// https://tc39.github.io/ecma262/#sec-array.prototype.fill
module.exports = function fill(value /* , start = 0, end = @length */) {
  var O = toObject(this);
  var length = toLength(O.length);
  var argumentsLength = arguments.length;
  var index = toAbsoluteIndex(argumentsLength > 1 ? arguments[1] : undefined, length);
  var end = argumentsLength > 2 ? arguments[2] : undefined;
  var endPos = end === undefined ? length : toAbsoluteIndex(end, length);
  while (endPos > index) O[index++] = value;
  return O;
};

},{"../internals/to-absolute-index":215,"../internals/to-length":219,"../internals/to-object":220}],113:[function(require,module,exports){
'use strict';
var $forEach = require('../internals/array-iteration').forEach;
var arrayMethodIsStrict = require('../internals/array-method-is-strict');
var arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');

var STRICT_METHOD = arrayMethodIsStrict('forEach');
var USES_TO_LENGTH = arrayMethodUsesToLength('forEach');

// `Array.prototype.forEach` method implementation
// https://tc39.github.io/ecma262/#sec-array.prototype.foreach
module.exports = (!STRICT_METHOD || !USES_TO_LENGTH) ? function forEach(callbackfn /* , thisArg */) {
  return $forEach(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
} : [].forEach;

},{"../internals/array-iteration":116,"../internals/array-method-is-strict":119,"../internals/array-method-uses-to-length":120}],114:[function(require,module,exports){
'use strict';
var bind = require('../internals/function-bind-context');
var toObject = require('../internals/to-object');
var callWithSafeIterationClosing = require('../internals/call-with-safe-iteration-closing');
var isArrayIteratorMethod = require('../internals/is-array-iterator-method');
var toLength = require('../internals/to-length');
var createProperty = require('../internals/create-property');
var getIteratorMethod = require('../internals/get-iterator-method');

// `Array.from` method implementation
// https://tc39.github.io/ecma262/#sec-array.from
module.exports = function from(arrayLike /* , mapfn = undefined, thisArg = undefined */) {
  var O = toObject(arrayLike);
  var C = typeof this == 'function' ? this : Array;
  var argumentsLength = arguments.length;
  var mapfn = argumentsLength > 1 ? arguments[1] : undefined;
  var mapping = mapfn !== undefined;
  var iteratorMethod = getIteratorMethod(O);
  var index = 0;
  var length, result, step, iterator, next, value;
  if (mapping) mapfn = bind(mapfn, argumentsLength > 2 ? arguments[2] : undefined, 2);
  // if the target is not iterable or it's an array with the default iterator - use a simple case
  if (iteratorMethod != undefined && !(C == Array && isArrayIteratorMethod(iteratorMethod))) {
    iterator = iteratorMethod.call(O);
    next = iterator.next;
    result = new C();
    for (;!(step = next.call(iterator)).done; index++) {
      value = mapping ? callWithSafeIterationClosing(iterator, mapfn, [step.value, index], true) : step.value;
      createProperty(result, index, value);
    }
  } else {
    length = toLength(O.length);
    result = new C(length);
    for (;length > index; index++) {
      value = mapping ? mapfn(O[index], index) : O[index];
      createProperty(result, index, value);
    }
  }
  result.length = index;
  return result;
};

},{"../internals/call-with-safe-iteration-closing":123,"../internals/create-property":133,"../internals/function-bind-context":147,"../internals/get-iterator-method":149,"../internals/is-array-iterator-method":161,"../internals/to-length":219,"../internals/to-object":220}],115:[function(require,module,exports){
var toIndexedObject = require('../internals/to-indexed-object');
var toLength = require('../internals/to-length');
var toAbsoluteIndex = require('../internals/to-absolute-index');

// `Array.prototype.{ indexOf, includes }` methods implementation
var createMethod = function (IS_INCLUDES) {
  return function ($this, el, fromIndex) {
    var O = toIndexedObject($this);
    var length = toLength(O.length);
    var index = toAbsoluteIndex(fromIndex, length);
    var value;
    // Array#includes uses SameValueZero equality algorithm
    // eslint-disable-next-line no-self-compare
    if (IS_INCLUDES && el != el) while (length > index) {
      value = O[index++];
      // eslint-disable-next-line no-self-compare
      if (value != value) return true;
    // Array#indexOf ignores holes, Array#includes - not
    } else for (;length > index; index++) {
      if ((IS_INCLUDES || index in O) && O[index] === el) return IS_INCLUDES || index || 0;
    } return !IS_INCLUDES && -1;
  };
};

module.exports = {
  // `Array.prototype.includes` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.includes
  includes: createMethod(true),
  // `Array.prototype.indexOf` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.indexof
  indexOf: createMethod(false)
};

},{"../internals/to-absolute-index":215,"../internals/to-indexed-object":217,"../internals/to-length":219}],116:[function(require,module,exports){
var bind = require('../internals/function-bind-context');
var IndexedObject = require('../internals/indexed-object');
var toObject = require('../internals/to-object');
var toLength = require('../internals/to-length');
var arraySpeciesCreate = require('../internals/array-species-create');

var push = [].push;

// `Array.prototype.{ forEach, map, filter, some, every, find, findIndex }` methods implementation
var createMethod = function (TYPE) {
  var IS_MAP = TYPE == 1;
  var IS_FILTER = TYPE == 2;
  var IS_SOME = TYPE == 3;
  var IS_EVERY = TYPE == 4;
  var IS_FIND_INDEX = TYPE == 6;
  var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;
  return function ($this, callbackfn, that, specificCreate) {
    var O = toObject($this);
    var self = IndexedObject(O);
    var boundFunction = bind(callbackfn, that, 3);
    var length = toLength(self.length);
    var index = 0;
    var create = specificCreate || arraySpeciesCreate;
    var target = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;
    var value, result;
    for (;length > index; index++) if (NO_HOLES || index in self) {
      value = self[index];
      result = boundFunction(value, index, O);
      if (TYPE) {
        if (IS_MAP) target[index] = result; // map
        else if (result) switch (TYPE) {
          case 3: return true;              // some
          case 5: return value;             // find
          case 6: return index;             // findIndex
          case 2: push.call(target, value); // filter
        } else if (IS_EVERY) return false;  // every
      }
    }
    return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : target;
  };
};

module.exports = {
  // `Array.prototype.forEach` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.foreach
  forEach: createMethod(0),
  // `Array.prototype.map` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.map
  map: createMethod(1),
  // `Array.prototype.filter` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.filter
  filter: createMethod(2),
  // `Array.prototype.some` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.some
  some: createMethod(3),
  // `Array.prototype.every` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.every
  every: createMethod(4),
  // `Array.prototype.find` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.find
  find: createMethod(5),
  // `Array.prototype.findIndex` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.findIndex
  findIndex: createMethod(6)
};

},{"../internals/array-species-create":122,"../internals/function-bind-context":147,"../internals/indexed-object":157,"../internals/to-length":219,"../internals/to-object":220}],117:[function(require,module,exports){
'use strict';
var toIndexedObject = require('../internals/to-indexed-object');
var toInteger = require('../internals/to-integer');
var toLength = require('../internals/to-length');
var arrayMethodIsStrict = require('../internals/array-method-is-strict');
var arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');

var min = Math.min;
var nativeLastIndexOf = [].lastIndexOf;
var NEGATIVE_ZERO = !!nativeLastIndexOf && 1 / [1].lastIndexOf(1, -0) < 0;
var STRICT_METHOD = arrayMethodIsStrict('lastIndexOf');
// For preventing possible almost infinite loop in non-standard implementations, test the forward version of the method
var USES_TO_LENGTH = arrayMethodUsesToLength('indexOf', { ACCESSORS: true, 1: 0 });
var FORCED = NEGATIVE_ZERO || !STRICT_METHOD || !USES_TO_LENGTH;

// `Array.prototype.lastIndexOf` method implementation
// https://tc39.github.io/ecma262/#sec-array.prototype.lastindexof
module.exports = FORCED ? function lastIndexOf(searchElement /* , fromIndex = @[*-1] */) {
  // convert -0 to +0
  if (NEGATIVE_ZERO) return nativeLastIndexOf.apply(this, arguments) || 0;
  var O = toIndexedObject(this);
  var length = toLength(O.length);
  var index = length - 1;
  if (arguments.length > 1) index = min(index, toInteger(arguments[1]));
  if (index < 0) index = length + index;
  for (;index >= 0; index--) if (index in O && O[index] === searchElement) return index || 0;
  return -1;
} : nativeLastIndexOf;

},{"../internals/array-method-is-strict":119,"../internals/array-method-uses-to-length":120,"../internals/to-indexed-object":217,"../internals/to-integer":218,"../internals/to-length":219}],118:[function(require,module,exports){
var fails = require('../internals/fails');
var wellKnownSymbol = require('../internals/well-known-symbol');
var V8_VERSION = require('../internals/engine-v8-version');

var SPECIES = wellKnownSymbol('species');

module.exports = function (METHOD_NAME) {
  // We can't use this feature detection in V8 since it causes
  // deoptimization and serious performance degradation
  // https://github.com/zloirock/core-js/issues/677
  return V8_VERSION >= 51 || !fails(function () {
    var array = [];
    var constructor = array.constructor = {};
    constructor[SPECIES] = function () {
      return { foo: 1 };
    };
    return array[METHOD_NAME](Boolean).foo !== 1;
  });
};

},{"../internals/engine-v8-version":142,"../internals/fails":145,"../internals/well-known-symbol":231}],119:[function(require,module,exports){
'use strict';
var fails = require('../internals/fails');

module.exports = function (METHOD_NAME, argument) {
  var method = [][METHOD_NAME];
  return !!method && fails(function () {
    // eslint-disable-next-line no-useless-call,no-throw-literal
    method.call(null, argument || function () { throw 1; }, 1);
  });
};

},{"../internals/fails":145}],120:[function(require,module,exports){
var DESCRIPTORS = require('../internals/descriptors');
var fails = require('../internals/fails');
var has = require('../internals/has');

var defineProperty = Object.defineProperty;
var cache = {};

var thrower = function (it) { throw it; };

module.exports = function (METHOD_NAME, options) {
  if (has(cache, METHOD_NAME)) return cache[METHOD_NAME];
  if (!options) options = {};
  var method = [][METHOD_NAME];
  var ACCESSORS = has(options, 'ACCESSORS') ? options.ACCESSORS : false;
  var argument0 = has(options, 0) ? options[0] : thrower;
  var argument1 = has(options, 1) ? options[1] : undefined;

  return cache[METHOD_NAME] = !!method && !fails(function () {
    if (ACCESSORS && !DESCRIPTORS) return true;
    var O = { length: -1 };

    if (ACCESSORS) defineProperty(O, 1, { enumerable: true, get: thrower });
    else O[1] = 1;

    method.call(O, argument0, argument1);
  });
};

},{"../internals/descriptors":136,"../internals/fails":145,"../internals/has":151}],121:[function(require,module,exports){
var aFunction = require('../internals/a-function');
var toObject = require('../internals/to-object');
var IndexedObject = require('../internals/indexed-object');
var toLength = require('../internals/to-length');

// `Array.prototype.{ reduce, reduceRight }` methods implementation
var createMethod = function (IS_RIGHT) {
  return function (that, callbackfn, argumentsLength, memo) {
    aFunction(callbackfn);
    var O = toObject(that);
    var self = IndexedObject(O);
    var length = toLength(O.length);
    var index = IS_RIGHT ? length - 1 : 0;
    var i = IS_RIGHT ? -1 : 1;
    if (argumentsLength < 2) while (true) {
      if (index in self) {
        memo = self[index];
        index += i;
        break;
      }
      index += i;
      if (IS_RIGHT ? index < 0 : length <= index) {
        throw TypeError('Reduce of empty array with no initial value');
      }
    }
    for (;IS_RIGHT ? index >= 0 : length > index; index += i) if (index in self) {
      memo = callbackfn(memo, self[index], index, O);
    }
    return memo;
  };
};

module.exports = {
  // `Array.prototype.reduce` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.reduce
  left: createMethod(false),
  // `Array.prototype.reduceRight` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.reduceright
  right: createMethod(true)
};

},{"../internals/a-function":102,"../internals/indexed-object":157,"../internals/to-length":219,"../internals/to-object":220}],122:[function(require,module,exports){
var isObject = require('../internals/is-object');
var isArray = require('../internals/is-array');
var wellKnownSymbol = require('../internals/well-known-symbol');

var SPECIES = wellKnownSymbol('species');

// `ArraySpeciesCreate` abstract operation
// https://tc39.github.io/ecma262/#sec-arrayspeciescreate
module.exports = function (originalArray, length) {
  var C;
  if (isArray(originalArray)) {
    C = originalArray.constructor;
    // cross-realm fallback
    if (typeof C == 'function' && (C === Array || isArray(C.prototype))) C = undefined;
    else if (isObject(C)) {
      C = C[SPECIES];
      if (C === null) C = undefined;
    }
  } return new (C === undefined ? Array : C)(length === 0 ? 0 : length);
};

},{"../internals/is-array":162,"../internals/is-object":164,"../internals/well-known-symbol":231}],123:[function(require,module,exports){
var anObject = require('../internals/an-object');
var iteratorClose = require('../internals/iterator-close');

// call something on iterator step with safe closing on error
module.exports = function (iterator, fn, value, ENTRIES) {
  try {
    return ENTRIES ? fn(anObject(value)[0], value[1]) : fn(value);
  // 7.4.6 IteratorClose(iterator, completion)
  } catch (error) {
    iteratorClose(iterator);
    throw error;
  }
};

},{"../internals/an-object":107,"../internals/iterator-close":168}],124:[function(require,module,exports){
var wellKnownSymbol = require('../internals/well-known-symbol');

var ITERATOR = wellKnownSymbol('iterator');
var SAFE_CLOSING = false;

try {
  var called = 0;
  var iteratorWithReturn = {
    next: function () {
      return { done: !!called++ };
    },
    'return': function () {
      SAFE_CLOSING = true;
    }
  };
  iteratorWithReturn[ITERATOR] = function () {
    return this;
  };
  // eslint-disable-next-line no-throw-literal
  Array.from(iteratorWithReturn, function () { throw 2; });
} catch (error) { /* empty */ }

module.exports = function (exec, SKIP_CLOSING) {
  if (!SKIP_CLOSING && !SAFE_CLOSING) return false;
  var ITERATION_SUPPORT = false;
  try {
    var object = {};
    object[ITERATOR] = function () {
      return {
        next: function () {
          return { done: ITERATION_SUPPORT = true };
        }
      };
    };
    exec(object);
  } catch (error) { /* empty */ }
  return ITERATION_SUPPORT;
};

},{"../internals/well-known-symbol":231}],125:[function(require,module,exports){
var toString = {}.toString;

module.exports = function (it) {
  return toString.call(it).slice(8, -1);
};

},{}],126:[function(require,module,exports){
var TO_STRING_TAG_SUPPORT = require('../internals/to-string-tag-support');
var classofRaw = require('../internals/classof-raw');
var wellKnownSymbol = require('../internals/well-known-symbol');

var TO_STRING_TAG = wellKnownSymbol('toStringTag');
// ES3 wrong here
var CORRECT_ARGUMENTS = classofRaw(function () { return arguments; }()) == 'Arguments';

// fallback for IE11 Script Access Denied error
var tryGet = function (it, key) {
  try {
    return it[key];
  } catch (error) { /* empty */ }
};

// getting tag from ES6+ `Object.prototype.toString`
module.exports = TO_STRING_TAG_SUPPORT ? classofRaw : function (it) {
  var O, tag, result;
  return it === undefined ? 'Undefined' : it === null ? 'Null'
    // @@toStringTag case
    : typeof (tag = tryGet(O = Object(it), TO_STRING_TAG)) == 'string' ? tag
    // builtinTag case
    : CORRECT_ARGUMENTS ? classofRaw(O)
    // ES3 arguments fallback
    : (result = classofRaw(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : result;
};

},{"../internals/classof-raw":125,"../internals/to-string-tag-support":224,"../internals/well-known-symbol":231}],127:[function(require,module,exports){
var has = require('../internals/has');
var ownKeys = require('../internals/own-keys');
var getOwnPropertyDescriptorModule = require('../internals/object-get-own-property-descriptor');
var definePropertyModule = require('../internals/object-define-property');

module.exports = function (target, source) {
  var keys = ownKeys(source);
  var defineProperty = definePropertyModule.f;
  var getOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;
  for (var i = 0; i < keys.length; i++) {
    var key = keys[i];
    if (!has(target, key)) defineProperty(target, key, getOwnPropertyDescriptor(source, key));
  }
};

},{"../internals/has":151,"../internals/object-define-property":180,"../internals/object-get-own-property-descriptor":181,"../internals/own-keys":192}],128:[function(require,module,exports){
var wellKnownSymbol = require('../internals/well-known-symbol');

var MATCH = wellKnownSymbol('match');

module.exports = function (METHOD_NAME) {
  var regexp = /./;
  try {
    '/./'[METHOD_NAME](regexp);
  } catch (error1) {
    try {
      regexp[MATCH] = false;
      return '/./'[METHOD_NAME](regexp);
    } catch (error2) { /* empty */ }
  } return false;
};

},{"../internals/well-known-symbol":231}],129:[function(require,module,exports){
var fails = require('../internals/fails');

module.exports = !fails(function () {
  function F() { /* empty */ }
  F.prototype.constructor = null;
  return Object.getPrototypeOf(new F()) !== F.prototype;
});

},{"../internals/fails":145}],130:[function(require,module,exports){
'use strict';
var IteratorPrototype = require('../internals/iterators-core').IteratorPrototype;
var create = require('../internals/object-create');
var createPropertyDescriptor = require('../internals/create-property-descriptor');
var setToStringTag = require('../internals/set-to-string-tag');
var Iterators = require('../internals/iterators');

var returnThis = function () { return this; };

module.exports = function (IteratorConstructor, NAME, next) {
  var TO_STRING_TAG = NAME + ' Iterator';
  IteratorConstructor.prototype = create(IteratorPrototype, { next: createPropertyDescriptor(1, next) });
  setToStringTag(IteratorConstructor, TO_STRING_TAG, false, true);
  Iterators[TO_STRING_TAG] = returnThis;
  return IteratorConstructor;
};

},{"../internals/create-property-descriptor":132,"../internals/iterators":170,"../internals/iterators-core":169,"../internals/object-create":178,"../internals/set-to-string-tag":206}],131:[function(require,module,exports){
var DESCRIPTORS = require('../internals/descriptors');
var definePropertyModule = require('../internals/object-define-property');
var createPropertyDescriptor = require('../internals/create-property-descriptor');

module.exports = DESCRIPTORS ? function (object, key, value) {
  return definePropertyModule.f(object, key, createPropertyDescriptor(1, value));
} : function (object, key, value) {
  object[key] = value;
  return object;
};

},{"../internals/create-property-descriptor":132,"../internals/descriptors":136,"../internals/object-define-property":180}],132:[function(require,module,exports){
module.exports = function (bitmap, value) {
  return {
    enumerable: !(bitmap & 1),
    configurable: !(bitmap & 2),
    writable: !(bitmap & 4),
    value: value
  };
};

},{}],133:[function(require,module,exports){
'use strict';
var toPrimitive = require('../internals/to-primitive');
var definePropertyModule = require('../internals/object-define-property');
var createPropertyDescriptor = require('../internals/create-property-descriptor');

module.exports = function (object, key, value) {
  var propertyKey = toPrimitive(key);
  if (propertyKey in object) definePropertyModule.f(object, propertyKey, createPropertyDescriptor(0, value));
  else object[propertyKey] = value;
};

},{"../internals/create-property-descriptor":132,"../internals/object-define-property":180,"../internals/to-primitive":223}],134:[function(require,module,exports){
'use strict';
var $ = require('../internals/export');
var createIteratorConstructor = require('../internals/create-iterator-constructor');
var getPrototypeOf = require('../internals/object-get-prototype-of');
var setPrototypeOf = require('../internals/object-set-prototype-of');
var setToStringTag = require('../internals/set-to-string-tag');
var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');
var redefine = require('../internals/redefine');
var wellKnownSymbol = require('../internals/well-known-symbol');
var IS_PURE = require('../internals/is-pure');
var Iterators = require('../internals/iterators');
var IteratorsCore = require('../internals/iterators-core');

var IteratorPrototype = IteratorsCore.IteratorPrototype;
var BUGGY_SAFARI_ITERATORS = IteratorsCore.BUGGY_SAFARI_ITERATORS;
var ITERATOR = wellKnownSymbol('iterator');
var KEYS = 'keys';
var VALUES = 'values';
var ENTRIES = 'entries';

var returnThis = function () { return this; };

module.exports = function (Iterable, NAME, IteratorConstructor, next, DEFAULT, IS_SET, FORCED) {
  createIteratorConstructor(IteratorConstructor, NAME, next);

  var getIterationMethod = function (KIND) {
    if (KIND === DEFAULT && defaultIterator) return defaultIterator;
    if (!BUGGY_SAFARI_ITERATORS && KIND in IterablePrototype) return IterablePrototype[KIND];
    switch (KIND) {
      case KEYS: return function keys() { return new IteratorConstructor(this, KIND); };
      case VALUES: return function values() { return new IteratorConstructor(this, KIND); };
      case ENTRIES: return function entries() { return new IteratorConstructor(this, KIND); };
    } return function () { return new IteratorConstructor(this); };
  };

  var TO_STRING_TAG = NAME + ' Iterator';
  var INCORRECT_VALUES_NAME = false;
  var IterablePrototype = Iterable.prototype;
  var nativeIterator = IterablePrototype[ITERATOR]
    || IterablePrototype['@@iterator']
    || DEFAULT && IterablePrototype[DEFAULT];
  var defaultIterator = !BUGGY_SAFARI_ITERATORS && nativeIterator || getIterationMethod(DEFAULT);
  var anyNativeIterator = NAME == 'Array' ? IterablePrototype.entries || nativeIterator : nativeIterator;
  var CurrentIteratorPrototype, methods, KEY;

  // fix native
  if (anyNativeIterator) {
    CurrentIteratorPrototype = getPrototypeOf(anyNativeIterator.call(new Iterable()));
    if (IteratorPrototype !== Object.prototype && CurrentIteratorPrototype.next) {
      if (!IS_PURE && getPrototypeOf(CurrentIteratorPrototype) !== IteratorPrototype) {
        if (setPrototypeOf) {
          setPrototypeOf(CurrentIteratorPrototype, IteratorPrototype);
        } else if (typeof CurrentIteratorPrototype[ITERATOR] != 'function') {
          createNonEnumerableProperty(CurrentIteratorPrototype, ITERATOR, returnThis);
        }
      }
      // Set @@toStringTag to native iterators
      setToStringTag(CurrentIteratorPrototype, TO_STRING_TAG, true, true);
      if (IS_PURE) Iterators[TO_STRING_TAG] = returnThis;
    }
  }

  // fix Array#{values, @@iterator}.name in V8 / FF
  if (DEFAULT == VALUES && nativeIterator && nativeIterator.name !== VALUES) {
    INCORRECT_VALUES_NAME = true;
    defaultIterator = function values() { return nativeIterator.call(this); };
  }

  // define iterator
  if ((!IS_PURE || FORCED) && IterablePrototype[ITERATOR] !== defaultIterator) {
    createNonEnumerableProperty(IterablePrototype, ITERATOR, defaultIterator);
  }
  Iterators[NAME] = defaultIterator;

  // export additional methods
  if (DEFAULT) {
    methods = {
      values: getIterationMethod(VALUES),
      keys: IS_SET ? defaultIterator : getIterationMethod(KEYS),
      entries: getIterationMethod(ENTRIES)
    };
    if (FORCED) for (KEY in methods) {
      if (BUGGY_SAFARI_ITERATORS || INCORRECT_VALUES_NAME || !(KEY in IterablePrototype)) {
        redefine(IterablePrototype, KEY, methods[KEY]);
      }
    } else $({ target: NAME, proto: true, forced: BUGGY_SAFARI_ITERATORS || INCORRECT_VALUES_NAME }, methods);
  }

  return methods;
};

},{"../internals/create-iterator-constructor":130,"../internals/create-non-enumerable-property":131,"../internals/export":144,"../internals/is-pure":165,"../internals/iterators":170,"../internals/iterators-core":169,"../internals/object-get-prototype-of":185,"../internals/object-set-prototype-of":189,"../internals/redefine":197,"../internals/set-to-string-tag":206,"../internals/well-known-symbol":231}],135:[function(require,module,exports){
var path = require('../internals/path');
var has = require('../internals/has');
var wrappedWellKnownSymbolModule = require('../internals/well-known-symbol-wrapped');
var defineProperty = require('../internals/object-define-property').f;

module.exports = function (NAME) {
  var Symbol = path.Symbol || (path.Symbol = {});
  if (!has(Symbol, NAME)) defineProperty(Symbol, NAME, {
    value: wrappedWellKnownSymbolModule.f(NAME)
  });
};

},{"../internals/has":151,"../internals/object-define-property":180,"../internals/path":193,"../internals/well-known-symbol-wrapped":230}],136:[function(require,module,exports){
var fails = require('../internals/fails');

// Thank's IE8 for his funny defineProperty
module.exports = !fails(function () {
  return Object.defineProperty({}, 1, { get: function () { return 7; } })[1] != 7;
});

},{"../internals/fails":145}],137:[function(require,module,exports){
var global = require('../internals/global');
var isObject = require('../internals/is-object');

var document = global.document;
// typeof document.createElement is 'object' in old IE
var EXISTS = isObject(document) && isObject(document.createElement);

module.exports = function (it) {
  return EXISTS ? document.createElement(it) : {};
};

},{"../internals/global":150,"../internals/is-object":164}],138:[function(require,module,exports){
// iterable DOM collections
// flag - `iterable` interface - 'entries', 'keys', 'values', 'forEach' methods
module.exports = {
  CSSRuleList: 0,
  CSSStyleDeclaration: 0,
  CSSValueList: 0,
  ClientRectList: 0,
  DOMRectList: 0,
  DOMStringList: 0,
  DOMTokenList: 1,
  DataTransferItemList: 0,
  FileList: 0,
  HTMLAllCollection: 0,
  HTMLCollection: 0,
  HTMLFormElement: 0,
  HTMLSelectElement: 0,
  MediaList: 0,
  MimeTypeArray: 0,
  NamedNodeMap: 0,
  NodeList: 1,
  PaintRequestList: 0,
  Plugin: 0,
  PluginArray: 0,
  SVGLengthList: 0,
  SVGNumberList: 0,
  SVGPathSegList: 0,
  SVGPointList: 0,
  SVGStringList: 0,
  SVGTransformList: 0,
  SourceBufferList: 0,
  StyleSheetList: 0,
  TextTrackCueList: 0,
  TextTrackList: 0,
  TouchList: 0
};

},{}],139:[function(require,module,exports){
var userAgent = require('../internals/engine-user-agent');

module.exports = /(iphone|ipod|ipad).*applewebkit/i.test(userAgent);

},{"../internals/engine-user-agent":141}],140:[function(require,module,exports){
var classof = require('../internals/classof-raw');
var global = require('../internals/global');

module.exports = classof(global.process) == 'process';

},{"../internals/classof-raw":125,"../internals/global":150}],141:[function(require,module,exports){
var getBuiltIn = require('../internals/get-built-in');

module.exports = getBuiltIn('navigator', 'userAgent') || '';

},{"../internals/get-built-in":148}],142:[function(require,module,exports){
var global = require('../internals/global');
var userAgent = require('../internals/engine-user-agent');

var process = global.process;
var versions = process && process.versions;
var v8 = versions && versions.v8;
var match, version;

if (v8) {
  match = v8.split('.');
  version = match[0] + match[1];
} else if (userAgent) {
  match = userAgent.match(/Edge\/(\d+)/);
  if (!match || match[1] >= 74) {
    match = userAgent.match(/Chrome\/(\d+)/);
    if (match) version = match[1];
  }
}

module.exports = version && +version;

},{"../internals/engine-user-agent":141,"../internals/global":150}],143:[function(require,module,exports){
// IE8- don't enum bug keys
module.exports = [
  'constructor',
  'hasOwnProperty',
  'isPrototypeOf',
  'propertyIsEnumerable',
  'toLocaleString',
  'toString',
  'valueOf'
];

},{}],144:[function(require,module,exports){
var global = require('../internals/global');
var getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;
var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');
var redefine = require('../internals/redefine');
var setGlobal = require('../internals/set-global');
var copyConstructorProperties = require('../internals/copy-constructor-properties');
var isForced = require('../internals/is-forced');

/*
  options.target      - name of the target object
  options.global      - target is the global object
  options.stat        - export as static methods of target
  options.proto       - export as prototype methods of target
  options.real        - real prototype method for the `pure` version
  options.forced      - export even if the native feature is available
  options.bind        - bind methods to the target, required for the `pure` version
  options.wrap        - wrap constructors to preventing global pollution, required for the `pure` version
  options.unsafe      - use the simple assignment of property instead of delete + defineProperty
  options.sham        - add a flag to not completely full polyfills
  options.enumerable  - export as enumerable property
  options.noTargetGet - prevent calling a getter on target
*/
module.exports = function (options, source) {
  var TARGET = options.target;
  var GLOBAL = options.global;
  var STATIC = options.stat;
  var FORCED, target, key, targetProperty, sourceProperty, descriptor;
  if (GLOBAL) {
    target = global;
  } else if (STATIC) {
    target = global[TARGET] || setGlobal(TARGET, {});
  } else {
    target = (global[TARGET] || {}).prototype;
  }
  if (target) for (key in source) {
    sourceProperty = source[key];
    if (options.noTargetGet) {
      descriptor = getOwnPropertyDescriptor(target, key);
      targetProperty = descriptor && descriptor.value;
    } else targetProperty = target[key];
    FORCED = isForced(GLOBAL ? key : TARGET + (STATIC ? '.' : '#') + key, options.forced);
    // contained in target
    if (!FORCED && targetProperty !== undefined) {
      if (typeof sourceProperty === typeof targetProperty) continue;
      copyConstructorProperties(sourceProperty, targetProperty);
    }
    // add a flag to not completely full polyfills
    if (options.sham || (targetProperty && targetProperty.sham)) {
      createNonEnumerableProperty(sourceProperty, 'sham', true);
    }
    // extend global
    redefine(target, key, sourceProperty, options);
  }
};

},{"../internals/copy-constructor-properties":127,"../internals/create-non-enumerable-property":131,"../internals/global":150,"../internals/is-forced":163,"../internals/object-get-own-property-descriptor":181,"../internals/redefine":197,"../internals/set-global":204}],145:[function(require,module,exports){
module.exports = function (exec) {
  try {
    return !!exec();
  } catch (error) {
    return true;
  }
};

},{}],146:[function(require,module,exports){
'use strict';
// TODO: Remove from `core-js@4` since it's moved to entry points
require('../modules/es.regexp.exec');
var redefine = require('../internals/redefine');
var fails = require('../internals/fails');
var wellKnownSymbol = require('../internals/well-known-symbol');
var regexpExec = require('../internals/regexp-exec');
var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');

var SPECIES = wellKnownSymbol('species');

var REPLACE_SUPPORTS_NAMED_GROUPS = !fails(function () {
  // #replace needs built-in support for named groups.
  // #match works fine because it just return the exec results, even if it has
  // a "grops" property.
  var re = /./;
  re.exec = function () {
    var result = [];
    result.groups = { a: '7' };
    return result;
  };
  return ''.replace(re, '$<a>') !== '7';
});

// IE <= 11 replaces $0 with the whole match, as if it was $&
// https://stackoverflow.com/questions/6024666/getting-ie-to-replace-a-regex-with-the-literal-string-0
var REPLACE_KEEPS_$0 = (function () {
  return 'a'.replace(/./, '$0') === '$0';
})();

var REPLACE = wellKnownSymbol('replace');
// Safari <= 13.0.3(?) substitutes nth capture where n>m with an empty string
var REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE = (function () {
  if (/./[REPLACE]) {
    return /./[REPLACE]('a', '$0') === '';
  }
  return false;
})();

// Chrome 51 has a buggy "split" implementation when RegExp#exec !== nativeExec
// Weex JS has frozen built-in prototypes, so use try / catch wrapper
var SPLIT_WORKS_WITH_OVERWRITTEN_EXEC = !fails(function () {
  var re = /(?:)/;
  var originalExec = re.exec;
  re.exec = function () { return originalExec.apply(this, arguments); };
  var result = 'ab'.split(re);
  return result.length !== 2 || result[0] !== 'a' || result[1] !== 'b';
});

module.exports = function (KEY, length, exec, sham) {
  var SYMBOL = wellKnownSymbol(KEY);

  var DELEGATES_TO_SYMBOL = !fails(function () {
    // String methods call symbol-named RegEp methods
    var O = {};
    O[SYMBOL] = function () { return 7; };
    return ''[KEY](O) != 7;
  });

  var DELEGATES_TO_EXEC = DELEGATES_TO_SYMBOL && !fails(function () {
    // Symbol-named RegExp methods call .exec
    var execCalled = false;
    var re = /a/;

    if (KEY === 'split') {
      // We can't use real regex here since it causes deoptimization
      // and serious performance degradation in V8
      // https://github.com/zloirock/core-js/issues/306
      re = {};
      // RegExp[@@split] doesn't call the regex's exec method, but first creates
      // a new one. We need to return the patched regex when creating the new one.
      re.constructor = {};
      re.constructor[SPECIES] = function () { return re; };
      re.flags = '';
      re[SYMBOL] = /./[SYMBOL];
    }

    re.exec = function () { execCalled = true; return null; };

    re[SYMBOL]('');
    return !execCalled;
  });

  if (
    !DELEGATES_TO_SYMBOL ||
    !DELEGATES_TO_EXEC ||
    (KEY === 'replace' && !(
      REPLACE_SUPPORTS_NAMED_GROUPS &&
      REPLACE_KEEPS_$0 &&
      !REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE
    )) ||
    (KEY === 'split' && !SPLIT_WORKS_WITH_OVERWRITTEN_EXEC)
  ) {
    var nativeRegExpMethod = /./[SYMBOL];
    var methods = exec(SYMBOL, ''[KEY], function (nativeMethod, regexp, str, arg2, forceStringMethod) {
      if (regexp.exec === regexpExec) {
        if (DELEGATES_TO_SYMBOL && !forceStringMethod) {
          // The native String method already delegates to @@method (this
          // polyfilled function), leasing to infinite recursion.
          // We avoid it by directly calling the native @@method method.
          return { done: true, value: nativeRegExpMethod.call(regexp, str, arg2) };
        }
        return { done: true, value: nativeMethod.call(str, regexp, arg2) };
      }
      return { done: false };
    }, {
      REPLACE_KEEPS_$0: REPLACE_KEEPS_$0,
      REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE: REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE
    });
    var stringMethod = methods[0];
    var regexMethod = methods[1];

    redefine(String.prototype, KEY, stringMethod);
    redefine(RegExp.prototype, SYMBOL, length == 2
      // 21.2.5.8 RegExp.prototype[@@replace](string, replaceValue)
      // 21.2.5.11 RegExp.prototype[@@split](string, limit)
      ? function (string, arg) { return regexMethod.call(string, this, arg); }
      // 21.2.5.6 RegExp.prototype[@@match](string)
      // 21.2.5.9 RegExp.prototype[@@search](string)
      : function (string) { return regexMethod.call(string, this); }
    );
  }

  if (sham) createNonEnumerableProperty(RegExp.prototype[SYMBOL], 'sham', true);
};

},{"../internals/create-non-enumerable-property":131,"../internals/fails":145,"../internals/redefine":197,"../internals/regexp-exec":199,"../internals/well-known-symbol":231,"../modules/es.regexp.exec":256}],147:[function(require,module,exports){
var aFunction = require('../internals/a-function');

// optional / simple context binding
module.exports = function (fn, that, length) {
  aFunction(fn);
  if (that === undefined) return fn;
  switch (length) {
    case 0: return function () {
      return fn.call(that);
    };
    case 1: return function (a) {
      return fn.call(that, a);
    };
    case 2: return function (a, b) {
      return fn.call(that, a, b);
    };
    case 3: return function (a, b, c) {
      return fn.call(that, a, b, c);
    };
  }
  return function (/* ...args */) {
    return fn.apply(that, arguments);
  };
};

},{"../internals/a-function":102}],148:[function(require,module,exports){
var path = require('../internals/path');
var global = require('../internals/global');

var aFunction = function (variable) {
  return typeof variable == 'function' ? variable : undefined;
};

module.exports = function (namespace, method) {
  return arguments.length < 2 ? aFunction(path[namespace]) || aFunction(global[namespace])
    : path[namespace] && path[namespace][method] || global[namespace] && global[namespace][method];
};

},{"../internals/global":150,"../internals/path":193}],149:[function(require,module,exports){
var classof = require('../internals/classof');
var Iterators = require('../internals/iterators');
var wellKnownSymbol = require('../internals/well-known-symbol');

var ITERATOR = wellKnownSymbol('iterator');

module.exports = function (it) {
  if (it != undefined) return it[ITERATOR]
    || it['@@iterator']
    || Iterators[classof(it)];
};

},{"../internals/classof":126,"../internals/iterators":170,"../internals/well-known-symbol":231}],150:[function(require,module,exports){
(function (global){
var check = function (it) {
  return it && it.Math == Math && it;
};

// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
module.exports =
  // eslint-disable-next-line no-undef
  check(typeof globalThis == 'object' && globalThis) ||
  check(typeof window == 'object' && window) ||
  check(typeof self == 'object' && self) ||
  check(typeof global == 'object' && global) ||
  // eslint-disable-next-line no-new-func
  (function () { return this; })() || Function('return this')();

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],151:[function(require,module,exports){
var hasOwnProperty = {}.hasOwnProperty;

module.exports = function (it, key) {
  return hasOwnProperty.call(it, key);
};

},{}],152:[function(require,module,exports){
module.exports = {};

},{}],153:[function(require,module,exports){
var global = require('../internals/global');

module.exports = function (a, b) {
  var console = global.console;
  if (console && console.error) {
    arguments.length === 1 ? console.error(a) : console.error(a, b);
  }
};

},{"../internals/global":150}],154:[function(require,module,exports){
var getBuiltIn = require('../internals/get-built-in');

module.exports = getBuiltIn('document', 'documentElement');

},{"../internals/get-built-in":148}],155:[function(require,module,exports){
var DESCRIPTORS = require('../internals/descriptors');
var fails = require('../internals/fails');
var createElement = require('../internals/document-create-element');

// Thank's IE8 for his funny defineProperty
module.exports = !DESCRIPTORS && !fails(function () {
  return Object.defineProperty(createElement('div'), 'a', {
    get: function () { return 7; }
  }).a != 7;
});

},{"../internals/descriptors":136,"../internals/document-create-element":137,"../internals/fails":145}],156:[function(require,module,exports){
// IEEE754 conversions based on https://github.com/feross/ieee754
// eslint-disable-next-line no-shadow-restricted-names
var Infinity = 1 / 0;
var abs = Math.abs;
var pow = Math.pow;
var floor = Math.floor;
var log = Math.log;
var LN2 = Math.LN2;

var pack = function (number, mantissaLength, bytes) {
  var buffer = new Array(bytes);
  var exponentLength = bytes * 8 - mantissaLength - 1;
  var eMax = (1 << exponentLength) - 1;
  var eBias = eMax >> 1;
  var rt = mantissaLength === 23 ? pow(2, -24) - pow(2, -77) : 0;
  var sign = number < 0 || number === 0 && 1 / number < 0 ? 1 : 0;
  var index = 0;
  var exponent, mantissa, c;
  number = abs(number);
  // eslint-disable-next-line no-self-compare
  if (number != number || number === Infinity) {
    // eslint-disable-next-line no-self-compare
    mantissa = number != number ? 1 : 0;
    exponent = eMax;
  } else {
    exponent = floor(log(number) / LN2);
    if (number * (c = pow(2, -exponent)) < 1) {
      exponent--;
      c *= 2;
    }
    if (exponent + eBias >= 1) {
      number += rt / c;
    } else {
      number += rt * pow(2, 1 - eBias);
    }
    if (number * c >= 2) {
      exponent++;
      c /= 2;
    }
    if (exponent + eBias >= eMax) {
      mantissa = 0;
      exponent = eMax;
    } else if (exponent + eBias >= 1) {
      mantissa = (number * c - 1) * pow(2, mantissaLength);
      exponent = exponent + eBias;
    } else {
      mantissa = number * pow(2, eBias - 1) * pow(2, mantissaLength);
      exponent = 0;
    }
  }
  for (; mantissaLength >= 8; buffer[index++] = mantissa & 255, mantissa /= 256, mantissaLength -= 8);
  exponent = exponent << mantissaLength | mantissa;
  exponentLength += mantissaLength;
  for (; exponentLength > 0; buffer[index++] = exponent & 255, exponent /= 256, exponentLength -= 8);
  buffer[--index] |= sign * 128;
  return buffer;
};

var unpack = function (buffer, mantissaLength) {
  var bytes = buffer.length;
  var exponentLength = bytes * 8 - mantissaLength - 1;
  var eMax = (1 << exponentLength) - 1;
  var eBias = eMax >> 1;
  var nBits = exponentLength - 7;
  var index = bytes - 1;
  var sign = buffer[index--];
  var exponent = sign & 127;
  var mantissa;
  sign >>= 7;
  for (; nBits > 0; exponent = exponent * 256 + buffer[index], index--, nBits -= 8);
  mantissa = exponent & (1 << -nBits) - 1;
  exponent >>= -nBits;
  nBits += mantissaLength;
  for (; nBits > 0; mantissa = mantissa * 256 + buffer[index], index--, nBits -= 8);
  if (exponent === 0) {
    exponent = 1 - eBias;
  } else if (exponent === eMax) {
    return mantissa ? NaN : sign ? -Infinity : Infinity;
  } else {
    mantissa = mantissa + pow(2, mantissaLength);
    exponent = exponent - eBias;
  } return (sign ? -1 : 1) * mantissa * pow(2, exponent - mantissaLength);
};

module.exports = {
  pack: pack,
  unpack: unpack
};

},{}],157:[function(require,module,exports){
var fails = require('../internals/fails');
var classof = require('../internals/classof-raw');

var split = ''.split;

// fallback for non-array-like ES3 and non-enumerable old V8 strings
module.exports = fails(function () {
  // throws an error in rhino, see https://github.com/mozilla/rhino/issues/346
  // eslint-disable-next-line no-prototype-builtins
  return !Object('z').propertyIsEnumerable(0);
}) ? function (it) {
  return classof(it) == 'String' ? split.call(it, '') : Object(it);
} : Object;

},{"../internals/classof-raw":125,"../internals/fails":145}],158:[function(require,module,exports){
var isObject = require('../internals/is-object');
var setPrototypeOf = require('../internals/object-set-prototype-of');

// makes subclassing work correct for wrapped built-ins
module.exports = function ($this, dummy, Wrapper) {
  var NewTarget, NewTargetPrototype;
  if (
    // it can work only with native `setPrototypeOf`
    setPrototypeOf &&
    // we haven't completely correct pre-ES6 way for getting `new.target`, so use this
    typeof (NewTarget = dummy.constructor) == 'function' &&
    NewTarget !== Wrapper &&
    isObject(NewTargetPrototype = NewTarget.prototype) &&
    NewTargetPrototype !== Wrapper.prototype
  ) setPrototypeOf($this, NewTargetPrototype);
  return $this;
};

},{"../internals/is-object":164,"../internals/object-set-prototype-of":189}],159:[function(require,module,exports){
var store = require('../internals/shared-store');

var functionToString = Function.toString;

// this helper broken in `3.4.1-3.4.4`, so we can't use `shared` helper
if (typeof store.inspectSource != 'function') {
  store.inspectSource = function (it) {
    return functionToString.call(it);
  };
}

module.exports = store.inspectSource;

},{"../internals/shared-store":208}],160:[function(require,module,exports){
var NATIVE_WEAK_MAP = require('../internals/native-weak-map');
var global = require('../internals/global');
var isObject = require('../internals/is-object');
var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');
var objectHas = require('../internals/has');
var shared = require('../internals/shared-store');
var sharedKey = require('../internals/shared-key');
var hiddenKeys = require('../internals/hidden-keys');

var WeakMap = global.WeakMap;
var set, get, has;

var enforce = function (it) {
  return has(it) ? get(it) : set(it, {});
};

var getterFor = function (TYPE) {
  return function (it) {
    var state;
    if (!isObject(it) || (state = get(it)).type !== TYPE) {
      throw TypeError('Incompatible receiver, ' + TYPE + ' required');
    } return state;
  };
};

if (NATIVE_WEAK_MAP) {
  var store = shared.state || (shared.state = new WeakMap());
  var wmget = store.get;
  var wmhas = store.has;
  var wmset = store.set;
  set = function (it, metadata) {
    metadata.facade = it;
    wmset.call(store, it, metadata);
    return metadata;
  };
  get = function (it) {
    return wmget.call(store, it) || {};
  };
  has = function (it) {
    return wmhas.call(store, it);
  };
} else {
  var STATE = sharedKey('state');
  hiddenKeys[STATE] = true;
  set = function (it, metadata) {
    metadata.facade = it;
    createNonEnumerableProperty(it, STATE, metadata);
    return metadata;
  };
  get = function (it) {
    return objectHas(it, STATE) ? it[STATE] : {};
  };
  has = function (it) {
    return objectHas(it, STATE);
  };
}

module.exports = {
  set: set,
  get: get,
  has: has,
  enforce: enforce,
  getterFor: getterFor
};

},{"../internals/create-non-enumerable-property":131,"../internals/global":150,"../internals/has":151,"../internals/hidden-keys":152,"../internals/is-object":164,"../internals/native-weak-map":174,"../internals/shared-key":207,"../internals/shared-store":208}],161:[function(require,module,exports){
var wellKnownSymbol = require('../internals/well-known-symbol');
var Iterators = require('../internals/iterators');

var ITERATOR = wellKnownSymbol('iterator');
var ArrayPrototype = Array.prototype;

// check on default Array iterator
module.exports = function (it) {
  return it !== undefined && (Iterators.Array === it || ArrayPrototype[ITERATOR] === it);
};

},{"../internals/iterators":170,"../internals/well-known-symbol":231}],162:[function(require,module,exports){
var classof = require('../internals/classof-raw');

// `IsArray` abstract operation
// https://tc39.github.io/ecma262/#sec-isarray
module.exports = Array.isArray || function isArray(arg) {
  return classof(arg) == 'Array';
};

},{"../internals/classof-raw":125}],163:[function(require,module,exports){
var fails = require('../internals/fails');

var replacement = /#|\.prototype\./;

var isForced = function (feature, detection) {
  var value = data[normalize(feature)];
  return value == POLYFILL ? true
    : value == NATIVE ? false
    : typeof detection == 'function' ? fails(detection)
    : !!detection;
};

var normalize = isForced.normalize = function (string) {
  return String(string).replace(replacement, '.').toLowerCase();
};

var data = isForced.data = {};
var NATIVE = isForced.NATIVE = 'N';
var POLYFILL = isForced.POLYFILL = 'P';

module.exports = isForced;

},{"../internals/fails":145}],164:[function(require,module,exports){
module.exports = function (it) {
  return typeof it === 'object' ? it !== null : typeof it === 'function';
};

},{}],165:[function(require,module,exports){
module.exports = false;

},{}],166:[function(require,module,exports){
var isObject = require('../internals/is-object');
var classof = require('../internals/classof-raw');
var wellKnownSymbol = require('../internals/well-known-symbol');

var MATCH = wellKnownSymbol('match');

// `IsRegExp` abstract operation
// https://tc39.github.io/ecma262/#sec-isregexp
module.exports = function (it) {
  var isRegExp;
  return isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : classof(it) == 'RegExp');
};

},{"../internals/classof-raw":125,"../internals/is-object":164,"../internals/well-known-symbol":231}],167:[function(require,module,exports){
var anObject = require('../internals/an-object');
var isArrayIteratorMethod = require('../internals/is-array-iterator-method');
var toLength = require('../internals/to-length');
var bind = require('../internals/function-bind-context');
var getIteratorMethod = require('../internals/get-iterator-method');
var iteratorClose = require('../internals/iterator-close');

var Result = function (stopped, result) {
  this.stopped = stopped;
  this.result = result;
};

module.exports = function (iterable, unboundFunction, options) {
  var that = options && options.that;
  var AS_ENTRIES = !!(options && options.AS_ENTRIES);
  var IS_ITERATOR = !!(options && options.IS_ITERATOR);
  var INTERRUPTED = !!(options && options.INTERRUPTED);
  var fn = bind(unboundFunction, that, 1 + AS_ENTRIES + INTERRUPTED);
  var iterator, iterFn, index, length, result, next, step;

  var stop = function (condition) {
    if (iterator) iteratorClose(iterator);
    return new Result(true, condition);
  };

  var callFn = function (value) {
    if (AS_ENTRIES) {
      anObject(value);
      return INTERRUPTED ? fn(value[0], value[1], stop) : fn(value[0], value[1]);
    } return INTERRUPTED ? fn(value, stop) : fn(value);
  };

  if (IS_ITERATOR) {
    iterator = iterable;
  } else {
    iterFn = getIteratorMethod(iterable);
    if (typeof iterFn != 'function') throw TypeError('Target is not iterable');
    // optimisation for array iterators
    if (isArrayIteratorMethod(iterFn)) {
      for (index = 0, length = toLength(iterable.length); length > index; index++) {
        result = callFn(iterable[index]);
        if (result && result instanceof Result) return result;
      } return new Result(false);
    }
    iterator = iterFn.call(iterable);
  }

  next = iterator.next;
  while (!(step = next.call(iterator)).done) {
    try {
      result = callFn(step.value);
    } catch (error) {
      iteratorClose(iterator);
      throw error;
    }
    if (typeof result == 'object' && result && result instanceof Result) return result;
  } return new Result(false);
};

},{"../internals/an-object":107,"../internals/function-bind-context":147,"../internals/get-iterator-method":149,"../internals/is-array-iterator-method":161,"../internals/iterator-close":168,"../internals/to-length":219}],168:[function(require,module,exports){
var anObject = require('../internals/an-object');

module.exports = function (iterator) {
  var returnMethod = iterator['return'];
  if (returnMethod !== undefined) {
    return anObject(returnMethod.call(iterator)).value;
  }
};

},{"../internals/an-object":107}],169:[function(require,module,exports){
'use strict';
var getPrototypeOf = require('../internals/object-get-prototype-of');
var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');
var has = require('../internals/has');
var wellKnownSymbol = require('../internals/well-known-symbol');
var IS_PURE = require('../internals/is-pure');

var ITERATOR = wellKnownSymbol('iterator');
var BUGGY_SAFARI_ITERATORS = false;

var returnThis = function () { return this; };

// `%IteratorPrototype%` object
// https://tc39.github.io/ecma262/#sec-%iteratorprototype%-object
var IteratorPrototype, PrototypeOfArrayIteratorPrototype, arrayIterator;

if ([].keys) {
  arrayIterator = [].keys();
  // Safari 8 has buggy iterators w/o `next`
  if (!('next' in arrayIterator)) BUGGY_SAFARI_ITERATORS = true;
  else {
    PrototypeOfArrayIteratorPrototype = getPrototypeOf(getPrototypeOf(arrayIterator));
    if (PrototypeOfArrayIteratorPrototype !== Object.prototype) IteratorPrototype = PrototypeOfArrayIteratorPrototype;
  }
}

if (IteratorPrototype == undefined) IteratorPrototype = {};

// 25.1.2.1.1 %IteratorPrototype%[@@iterator]()
if (!IS_PURE && !has(IteratorPrototype, ITERATOR)) {
  createNonEnumerableProperty(IteratorPrototype, ITERATOR, returnThis);
}

module.exports = {
  IteratorPrototype: IteratorPrototype,
  BUGGY_SAFARI_ITERATORS: BUGGY_SAFARI_ITERATORS
};

},{"../internals/create-non-enumerable-property":131,"../internals/has":151,"../internals/is-pure":165,"../internals/object-get-prototype-of":185,"../internals/well-known-symbol":231}],170:[function(require,module,exports){
arguments[4][152][0].apply(exports,arguments)
},{"dup":152}],171:[function(require,module,exports){
var global = require('../internals/global');
var getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;
var macrotask = require('../internals/task').set;
var IS_IOS = require('../internals/engine-is-ios');
var IS_NODE = require('../internals/engine-is-node');

var MutationObserver = global.MutationObserver || global.WebKitMutationObserver;
var document = global.document;
var process = global.process;
var Promise = global.Promise;
// Node.js 11 shows ExperimentalWarning on getting `queueMicrotask`
var queueMicrotaskDescriptor = getOwnPropertyDescriptor(global, 'queueMicrotask');
var queueMicrotask = queueMicrotaskDescriptor && queueMicrotaskDescriptor.value;

var flush, head, last, notify, toggle, node, promise, then;

// modern engines have queueMicrotask method
if (!queueMicrotask) {
  flush = function () {
    var parent, fn;
    if (IS_NODE && (parent = process.domain)) parent.exit();
    while (head) {
      fn = head.fn;
      head = head.next;
      try {
        fn();
      } catch (error) {
        if (head) notify();
        else last = undefined;
        throw error;
      }
    } last = undefined;
    if (parent) parent.enter();
  };

  // browsers with MutationObserver, except iOS - https://github.com/zloirock/core-js/issues/339
  if (!IS_IOS && !IS_NODE && MutationObserver && document) {
    toggle = true;
    node = document.createTextNode('');
    new MutationObserver(flush).observe(node, { characterData: true });
    notify = function () {
      node.data = toggle = !toggle;
    };
  // environments with maybe non-completely correct, but existent Promise
  } else if (Promise && Promise.resolve) {
    // Promise.resolve without an argument throws an error in LG WebOS 2
    promise = Promise.resolve(undefined);
    then = promise.then;
    notify = function () {
      then.call(promise, flush);
    };
  // Node.js without promises
  } else if (IS_NODE) {
    notify = function () {
      process.nextTick(flush);
    };
  // for other environments - macrotask based on:
  // - setImmediate
  // - MessageChannel
  // - window.postMessag
  // - onreadystatechange
  // - setTimeout
  } else {
    notify = function () {
      // strange IE + webpack dev server bug - use .call(global)
      macrotask.call(global, flush);
    };
  }
}

module.exports = queueMicrotask || function (fn) {
  var task = { fn: fn, next: undefined };
  if (last) last.next = task;
  if (!head) {
    head = task;
    notify();
  } last = task;
};

},{"../internals/engine-is-ios":139,"../internals/engine-is-node":140,"../internals/global":150,"../internals/object-get-own-property-descriptor":181,"../internals/task":214}],172:[function(require,module,exports){
var global = require('../internals/global');

module.exports = global.Promise;

},{"../internals/global":150}],173:[function(require,module,exports){
var fails = require('../internals/fails');

module.exports = !!Object.getOwnPropertySymbols && !fails(function () {
  // Chrome 38 Symbol has incorrect toString conversion
  // eslint-disable-next-line no-undef
  return !String(Symbol());
});

},{"../internals/fails":145}],174:[function(require,module,exports){
var global = require('../internals/global');
var inspectSource = require('../internals/inspect-source');

var WeakMap = global.WeakMap;

module.exports = typeof WeakMap === 'function' && /native code/.test(inspectSource(WeakMap));

},{"../internals/global":150,"../internals/inspect-source":159}],175:[function(require,module,exports){
'use strict';
var aFunction = require('../internals/a-function');

var PromiseCapability = function (C) {
  var resolve, reject;
  this.promise = new C(function ($$resolve, $$reject) {
    if (resolve !== undefined || reject !== undefined) throw TypeError('Bad Promise constructor');
    resolve = $$resolve;
    reject = $$reject;
  });
  this.resolve = aFunction(resolve);
  this.reject = aFunction(reject);
};

// 25.4.1.5 NewPromiseCapability(C)
module.exports.f = function (C) {
  return new PromiseCapability(C);
};

},{"../internals/a-function":102}],176:[function(require,module,exports){
var isRegExp = require('../internals/is-regexp');

module.exports = function (it) {
  if (isRegExp(it)) {
    throw TypeError("The method doesn't accept regular expressions");
  } return it;
};

},{"../internals/is-regexp":166}],177:[function(require,module,exports){
'use strict';
var DESCRIPTORS = require('../internals/descriptors');
var fails = require('../internals/fails');
var objectKeys = require('../internals/object-keys');
var getOwnPropertySymbolsModule = require('../internals/object-get-own-property-symbols');
var propertyIsEnumerableModule = require('../internals/object-property-is-enumerable');
var toObject = require('../internals/to-object');
var IndexedObject = require('../internals/indexed-object');

var nativeAssign = Object.assign;
var defineProperty = Object.defineProperty;

// `Object.assign` method
// https://tc39.github.io/ecma262/#sec-object.assign
module.exports = !nativeAssign || fails(function () {
  // should have correct order of operations (Edge bug)
  if (DESCRIPTORS && nativeAssign({ b: 1 }, nativeAssign(defineProperty({}, 'a', {
    enumerable: true,
    get: function () {
      defineProperty(this, 'b', {
        value: 3,
        enumerable: false
      });
    }
  }), { b: 2 })).b !== 1) return true;
  // should work with symbols and should have deterministic property order (V8 bug)
  var A = {};
  var B = {};
  // eslint-disable-next-line no-undef
  var symbol = Symbol();
  var alphabet = 'abcdefghijklmnopqrst';
  A[symbol] = 7;
  alphabet.split('').forEach(function (chr) { B[chr] = chr; });
  return nativeAssign({}, A)[symbol] != 7 || objectKeys(nativeAssign({}, B)).join('') != alphabet;
}) ? function assign(target, source) { // eslint-disable-line no-unused-vars
  var T = toObject(target);
  var argumentsLength = arguments.length;
  var index = 1;
  var getOwnPropertySymbols = getOwnPropertySymbolsModule.f;
  var propertyIsEnumerable = propertyIsEnumerableModule.f;
  while (argumentsLength > index) {
    var S = IndexedObject(arguments[index++]);
    var keys = getOwnPropertySymbols ? objectKeys(S).concat(getOwnPropertySymbols(S)) : objectKeys(S);
    var length = keys.length;
    var j = 0;
    var key;
    while (length > j) {
      key = keys[j++];
      if (!DESCRIPTORS || propertyIsEnumerable.call(S, key)) T[key] = S[key];
    }
  } return T;
} : nativeAssign;

},{"../internals/descriptors":136,"../internals/fails":145,"../internals/indexed-object":157,"../internals/object-get-own-property-symbols":184,"../internals/object-keys":187,"../internals/object-property-is-enumerable":188,"../internals/to-object":220}],178:[function(require,module,exports){
var anObject = require('../internals/an-object');
var defineProperties = require('../internals/object-define-properties');
var enumBugKeys = require('../internals/enum-bug-keys');
var hiddenKeys = require('../internals/hidden-keys');
var html = require('../internals/html');
var documentCreateElement = require('../internals/document-create-element');
var sharedKey = require('../internals/shared-key');

var GT = '>';
var LT = '<';
var PROTOTYPE = 'prototype';
var SCRIPT = 'script';
var IE_PROTO = sharedKey('IE_PROTO');

var EmptyConstructor = function () { /* empty */ };

var scriptTag = function (content) {
  return LT + SCRIPT + GT + content + LT + '/' + SCRIPT + GT;
};

// Create object with fake `null` prototype: use ActiveX Object with cleared prototype
var NullProtoObjectViaActiveX = function (activeXDocument) {
  activeXDocument.write(scriptTag(''));
  activeXDocument.close();
  var temp = activeXDocument.parentWindow.Object;
  activeXDocument = null; // avoid memory leak
  return temp;
};

// Create object with fake `null` prototype: use iframe Object with cleared prototype
var NullProtoObjectViaIFrame = function () {
  // Thrash, waste and sodomy: IE GC bug
  var iframe = documentCreateElement('iframe');
  var JS = 'java' + SCRIPT + ':';
  var iframeDocument;
  iframe.style.display = 'none';
  html.appendChild(iframe);
  // https://github.com/zloirock/core-js/issues/475
  iframe.src = String(JS);
  iframeDocument = iframe.contentWindow.document;
  iframeDocument.open();
  iframeDocument.write(scriptTag('document.F=Object'));
  iframeDocument.close();
  return iframeDocument.F;
};

// Check for document.domain and active x support
// No need to use active x approach when document.domain is not set
// see https://github.com/es-shims/es5-shim/issues/150
// variation of https://github.com/kitcambridge/es5-shim/commit/4f738ac066346
// avoid IE GC bug
var activeXDocument;
var NullProtoObject = function () {
  try {
    /* global ActiveXObject */
    activeXDocument = document.domain && new ActiveXObject('htmlfile');
  } catch (error) { /* ignore */ }
  NullProtoObject = activeXDocument ? NullProtoObjectViaActiveX(activeXDocument) : NullProtoObjectViaIFrame();
  var length = enumBugKeys.length;
  while (length--) delete NullProtoObject[PROTOTYPE][enumBugKeys[length]];
  return NullProtoObject();
};

hiddenKeys[IE_PROTO] = true;

// `Object.create` method
// https://tc39.github.io/ecma262/#sec-object.create
module.exports = Object.create || function create(O, Properties) {
  var result;
  if (O !== null) {
    EmptyConstructor[PROTOTYPE] = anObject(O);
    result = new EmptyConstructor();
    EmptyConstructor[PROTOTYPE] = null;
    // add "__proto__" for Object.getPrototypeOf polyfill
    result[IE_PROTO] = O;
  } else result = NullProtoObject();
  return Properties === undefined ? result : defineProperties(result, Properties);
};

},{"../internals/an-object":107,"../internals/document-create-element":137,"../internals/enum-bug-keys":143,"../internals/hidden-keys":152,"../internals/html":154,"../internals/object-define-properties":179,"../internals/shared-key":207}],179:[function(require,module,exports){
var DESCRIPTORS = require('../internals/descriptors');
var definePropertyModule = require('../internals/object-define-property');
var anObject = require('../internals/an-object');
var objectKeys = require('../internals/object-keys');

// `Object.defineProperties` method
// https://tc39.github.io/ecma262/#sec-object.defineproperties
module.exports = DESCRIPTORS ? Object.defineProperties : function defineProperties(O, Properties) {
  anObject(O);
  var keys = objectKeys(Properties);
  var length = keys.length;
  var index = 0;
  var key;
  while (length > index) definePropertyModule.f(O, key = keys[index++], Properties[key]);
  return O;
};

},{"../internals/an-object":107,"../internals/descriptors":136,"../internals/object-define-property":180,"../internals/object-keys":187}],180:[function(require,module,exports){
var DESCRIPTORS = require('../internals/descriptors');
var IE8_DOM_DEFINE = require('../internals/ie8-dom-define');
var anObject = require('../internals/an-object');
var toPrimitive = require('../internals/to-primitive');

var nativeDefineProperty = Object.defineProperty;

// `Object.defineProperty` method
// https://tc39.github.io/ecma262/#sec-object.defineproperty
exports.f = DESCRIPTORS ? nativeDefineProperty : function defineProperty(O, P, Attributes) {
  anObject(O);
  P = toPrimitive(P, true);
  anObject(Attributes);
  if (IE8_DOM_DEFINE) try {
    return nativeDefineProperty(O, P, Attributes);
  } catch (error) { /* empty */ }
  if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported');
  if ('value' in Attributes) O[P] = Attributes.value;
  return O;
};

},{"../internals/an-object":107,"../internals/descriptors":136,"../internals/ie8-dom-define":155,"../internals/to-primitive":223}],181:[function(require,module,exports){
var DESCRIPTORS = require('../internals/descriptors');
var propertyIsEnumerableModule = require('../internals/object-property-is-enumerable');
var createPropertyDescriptor = require('../internals/create-property-descriptor');
var toIndexedObject = require('../internals/to-indexed-object');
var toPrimitive = require('../internals/to-primitive');
var has = require('../internals/has');
var IE8_DOM_DEFINE = require('../internals/ie8-dom-define');

var nativeGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;

// `Object.getOwnPropertyDescriptor` method
// https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptor
exports.f = DESCRIPTORS ? nativeGetOwnPropertyDescriptor : function getOwnPropertyDescriptor(O, P) {
  O = toIndexedObject(O);
  P = toPrimitive(P, true);
  if (IE8_DOM_DEFINE) try {
    return nativeGetOwnPropertyDescriptor(O, P);
  } catch (error) { /* empty */ }
  if (has(O, P)) return createPropertyDescriptor(!propertyIsEnumerableModule.f.call(O, P), O[P]);
};

},{"../internals/create-property-descriptor":132,"../internals/descriptors":136,"../internals/has":151,"../internals/ie8-dom-define":155,"../internals/object-property-is-enumerable":188,"../internals/to-indexed-object":217,"../internals/to-primitive":223}],182:[function(require,module,exports){
var toIndexedObject = require('../internals/to-indexed-object');
var nativeGetOwnPropertyNames = require('../internals/object-get-own-property-names').f;

var toString = {}.toString;

var windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames
  ? Object.getOwnPropertyNames(window) : [];

var getWindowNames = function (it) {
  try {
    return nativeGetOwnPropertyNames(it);
  } catch (error) {
    return windowNames.slice();
  }
};

// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window
module.exports.f = function getOwnPropertyNames(it) {
  return windowNames && toString.call(it) == '[object Window]'
    ? getWindowNames(it)
    : nativeGetOwnPropertyNames(toIndexedObject(it));
};

},{"../internals/object-get-own-property-names":183,"../internals/to-indexed-object":217}],183:[function(require,module,exports){
var internalObjectKeys = require('../internals/object-keys-internal');
var enumBugKeys = require('../internals/enum-bug-keys');

var hiddenKeys = enumBugKeys.concat('length', 'prototype');

// `Object.getOwnPropertyNames` method
// https://tc39.github.io/ecma262/#sec-object.getownpropertynames
exports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
  return internalObjectKeys(O, hiddenKeys);
};

},{"../internals/enum-bug-keys":143,"../internals/object-keys-internal":186}],184:[function(require,module,exports){
exports.f = Object.getOwnPropertySymbols;

},{}],185:[function(require,module,exports){
var has = require('../internals/has');
var toObject = require('../internals/to-object');
var sharedKey = require('../internals/shared-key');
var CORRECT_PROTOTYPE_GETTER = require('../internals/correct-prototype-getter');

var IE_PROTO = sharedKey('IE_PROTO');
var ObjectPrototype = Object.prototype;

// `Object.getPrototypeOf` method
// https://tc39.github.io/ecma262/#sec-object.getprototypeof
module.exports = CORRECT_PROTOTYPE_GETTER ? Object.getPrototypeOf : function (O) {
  O = toObject(O);
  if (has(O, IE_PROTO)) return O[IE_PROTO];
  if (typeof O.constructor == 'function' && O instanceof O.constructor) {
    return O.constructor.prototype;
  } return O instanceof Object ? ObjectPrototype : null;
};

},{"../internals/correct-prototype-getter":129,"../internals/has":151,"../internals/shared-key":207,"../internals/to-object":220}],186:[function(require,module,exports){
var has = require('../internals/has');
var toIndexedObject = require('../internals/to-indexed-object');
var indexOf = require('../internals/array-includes').indexOf;
var hiddenKeys = require('../internals/hidden-keys');

module.exports = function (object, names) {
  var O = toIndexedObject(object);
  var i = 0;
  var result = [];
  var key;
  for (key in O) !has(hiddenKeys, key) && has(O, key) && result.push(key);
  // Don't enum bug & hidden keys
  while (names.length > i) if (has(O, key = names[i++])) {
    ~indexOf(result, key) || result.push(key);
  }
  return result;
};

},{"../internals/array-includes":115,"../internals/has":151,"../internals/hidden-keys":152,"../internals/to-indexed-object":217}],187:[function(require,module,exports){
var internalObjectKeys = require('../internals/object-keys-internal');
var enumBugKeys = require('../internals/enum-bug-keys');

// `Object.keys` method
// https://tc39.github.io/ecma262/#sec-object.keys
module.exports = Object.keys || function keys(O) {
  return internalObjectKeys(O, enumBugKeys);
};

},{"../internals/enum-bug-keys":143,"../internals/object-keys-internal":186}],188:[function(require,module,exports){
'use strict';
var nativePropertyIsEnumerable = {}.propertyIsEnumerable;
var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;

// Nashorn ~ JDK8 bug
var NASHORN_BUG = getOwnPropertyDescriptor && !nativePropertyIsEnumerable.call({ 1: 2 }, 1);

// `Object.prototype.propertyIsEnumerable` method implementation
// https://tc39.github.io/ecma262/#sec-object.prototype.propertyisenumerable
exports.f = NASHORN_BUG ? function propertyIsEnumerable(V) {
  var descriptor = getOwnPropertyDescriptor(this, V);
  return !!descriptor && descriptor.enumerable;
} : nativePropertyIsEnumerable;

},{}],189:[function(require,module,exports){
var anObject = require('../internals/an-object');
var aPossiblePrototype = require('../internals/a-possible-prototype');

// `Object.setPrototypeOf` method
// https://tc39.github.io/ecma262/#sec-object.setprototypeof
// Works with __proto__ only. Old v8 can't work with null proto objects.
/* eslint-disable no-proto */
module.exports = Object.setPrototypeOf || ('__proto__' in {} ? function () {
  var CORRECT_SETTER = false;
  var test = {};
  var setter;
  try {
    setter = Object.getOwnPropertyDescriptor(Object.prototype, '__proto__').set;
    setter.call(test, []);
    CORRECT_SETTER = test instanceof Array;
  } catch (error) { /* empty */ }
  return function setPrototypeOf(O, proto) {
    anObject(O);
    aPossiblePrototype(proto);
    if (CORRECT_SETTER) setter.call(O, proto);
    else O.__proto__ = proto;
    return O;
  };
}() : undefined);

},{"../internals/a-possible-prototype":103,"../internals/an-object":107}],190:[function(require,module,exports){
var DESCRIPTORS = require('../internals/descriptors');
var objectKeys = require('../internals/object-keys');
var toIndexedObject = require('../internals/to-indexed-object');
var propertyIsEnumerable = require('../internals/object-property-is-enumerable').f;

// `Object.{ entries, values }` methods implementation
var createMethod = function (TO_ENTRIES) {
  return function (it) {
    var O = toIndexedObject(it);
    var keys = objectKeys(O);
    var length = keys.length;
    var i = 0;
    var result = [];
    var key;
    while (length > i) {
      key = keys[i++];
      if (!DESCRIPTORS || propertyIsEnumerable.call(O, key)) {
        result.push(TO_ENTRIES ? [key, O[key]] : O[key]);
      }
    }
    return result;
  };
};

module.exports = {
  // `Object.entries` method
  // https://tc39.github.io/ecma262/#sec-object.entries
  entries: createMethod(true),
  // `Object.values` method
  // https://tc39.github.io/ecma262/#sec-object.values
  values: createMethod(false)
};

},{"../internals/descriptors":136,"../internals/object-keys":187,"../internals/object-property-is-enumerable":188,"../internals/to-indexed-object":217}],191:[function(require,module,exports){
'use strict';
var TO_STRING_TAG_SUPPORT = require('../internals/to-string-tag-support');
var classof = require('../internals/classof');

// `Object.prototype.toString` method implementation
// https://tc39.github.io/ecma262/#sec-object.prototype.tostring
module.exports = TO_STRING_TAG_SUPPORT ? {}.toString : function toString() {
  return '[object ' + classof(this) + ']';
};

},{"../internals/classof":126,"../internals/to-string-tag-support":224}],192:[function(require,module,exports){
var getBuiltIn = require('../internals/get-built-in');
var getOwnPropertyNamesModule = require('../internals/object-get-own-property-names');
var getOwnPropertySymbolsModule = require('../internals/object-get-own-property-symbols');
var anObject = require('../internals/an-object');

// all object keys, includes non-enumerable and symbols
module.exports = getBuiltIn('Reflect', 'ownKeys') || function ownKeys(it) {
  var keys = getOwnPropertyNamesModule.f(anObject(it));
  var getOwnPropertySymbols = getOwnPropertySymbolsModule.f;
  return getOwnPropertySymbols ? keys.concat(getOwnPropertySymbols(it)) : keys;
};

},{"../internals/an-object":107,"../internals/get-built-in":148,"../internals/object-get-own-property-names":183,"../internals/object-get-own-property-symbols":184}],193:[function(require,module,exports){
var global = require('../internals/global');

module.exports = global;

},{"../internals/global":150}],194:[function(require,module,exports){
module.exports = function (exec) {
  try {
    return { error: false, value: exec() };
  } catch (error) {
    return { error: true, value: error };
  }
};

},{}],195:[function(require,module,exports){
var anObject = require('../internals/an-object');
var isObject = require('../internals/is-object');
var newPromiseCapability = require('../internals/new-promise-capability');

module.exports = function (C, x) {
  anObject(C);
  if (isObject(x) && x.constructor === C) return x;
  var promiseCapability = newPromiseCapability.f(C);
  var resolve = promiseCapability.resolve;
  resolve(x);
  return promiseCapability.promise;
};

},{"../internals/an-object":107,"../internals/is-object":164,"../internals/new-promise-capability":175}],196:[function(require,module,exports){
var redefine = require('../internals/redefine');

module.exports = function (target, src, options) {
  for (var key in src) redefine(target, key, src[key], options);
  return target;
};

},{"../internals/redefine":197}],197:[function(require,module,exports){
var global = require('../internals/global');
var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');
var has = require('../internals/has');
var setGlobal = require('../internals/set-global');
var inspectSource = require('../internals/inspect-source');
var InternalStateModule = require('../internals/internal-state');

var getInternalState = InternalStateModule.get;
var enforceInternalState = InternalStateModule.enforce;
var TEMPLATE = String(String).split('String');

(module.exports = function (O, key, value, options) {
  var unsafe = options ? !!options.unsafe : false;
  var simple = options ? !!options.enumerable : false;
  var noTargetGet = options ? !!options.noTargetGet : false;
  var state;
  if (typeof value == 'function') {
    if (typeof key == 'string' && !has(value, 'name')) {
      createNonEnumerableProperty(value, 'name', key);
    }
    state = enforceInternalState(value);
    if (!state.source) {
      state.source = TEMPLATE.join(typeof key == 'string' ? key : '');
    }
  }
  if (O === global) {
    if (simple) O[key] = value;
    else setGlobal(key, value);
    return;
  } else if (!unsafe) {
    delete O[key];
  } else if (!noTargetGet && O[key]) {
    simple = true;
  }
  if (simple) O[key] = value;
  else createNonEnumerableProperty(O, key, value);
// add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative
})(Function.prototype, 'toString', function toString() {
  return typeof this == 'function' && getInternalState(this).source || inspectSource(this);
});

},{"../internals/create-non-enumerable-property":131,"../internals/global":150,"../internals/has":151,"../internals/inspect-source":159,"../internals/internal-state":160,"../internals/set-global":204}],198:[function(require,module,exports){
var classof = require('./classof-raw');
var regexpExec = require('./regexp-exec');

// `RegExpExec` abstract operation
// https://tc39.github.io/ecma262/#sec-regexpexec
module.exports = function (R, S) {
  var exec = R.exec;
  if (typeof exec === 'function') {
    var result = exec.call(R, S);
    if (typeof result !== 'object') {
      throw TypeError('RegExp exec method returned something other than an Object or null');
    }
    return result;
  }

  if (classof(R) !== 'RegExp') {
    throw TypeError('RegExp#exec called on incompatible receiver');
  }

  return regexpExec.call(R, S);
};


},{"./classof-raw":125,"./regexp-exec":199}],199:[function(require,module,exports){
'use strict';
var regexpFlags = require('./regexp-flags');
var stickyHelpers = require('./regexp-sticky-helpers');

var nativeExec = RegExp.prototype.exec;
// This always refers to the native implementation, because the
// String#replace polyfill uses ./fix-regexp-well-known-symbol-logic.js,
// which loads this file before patching the method.
var nativeReplace = String.prototype.replace;

var patchedExec = nativeExec;

var UPDATES_LAST_INDEX_WRONG = (function () {
  var re1 = /a/;
  var re2 = /b*/g;
  nativeExec.call(re1, 'a');
  nativeExec.call(re2, 'a');
  return re1.lastIndex !== 0 || re2.lastIndex !== 0;
})();

var UNSUPPORTED_Y = stickyHelpers.UNSUPPORTED_Y || stickyHelpers.BROKEN_CARET;

// nonparticipating capturing group, copied from es5-shim's String#split patch.
var NPCG_INCLUDED = /()??/.exec('')[1] !== undefined;

var PATCH = UPDATES_LAST_INDEX_WRONG || NPCG_INCLUDED || UNSUPPORTED_Y;

if (PATCH) {
  patchedExec = function exec(str) {
    var re = this;
    var lastIndex, reCopy, match, i;
    var sticky = UNSUPPORTED_Y && re.sticky;
    var flags = regexpFlags.call(re);
    var source = re.source;
    var charsAdded = 0;
    var strCopy = str;

    if (sticky) {
      flags = flags.replace('y', '');
      if (flags.indexOf('g') === -1) {
        flags += 'g';
      }

      strCopy = String(str).slice(re.lastIndex);
      // Support anchored sticky behavior.
      if (re.lastIndex > 0 && (!re.multiline || re.multiline && str[re.lastIndex - 1] !== '\n')) {
        source = '(?: ' + source + ')';
        strCopy = ' ' + strCopy;
        charsAdded++;
      }
      // ^(? + rx + ) is needed, in combination with some str slicing, to
      // simulate the 'y' flag.
      reCopy = new RegExp('^(?:' + source + ')', flags);
    }

    if (NPCG_INCLUDED) {
      reCopy = new RegExp('^' + source + '$(?!\\s)', flags);
    }
    if (UPDATES_LAST_INDEX_WRONG) lastIndex = re.lastIndex;

    match = nativeExec.call(sticky ? reCopy : re, strCopy);

    if (sticky) {
      if (match) {
        match.input = match.input.slice(charsAdded);
        match[0] = match[0].slice(charsAdded);
        match.index = re.lastIndex;
        re.lastIndex += match[0].length;
      } else re.lastIndex = 0;
    } else if (UPDATES_LAST_INDEX_WRONG && match) {
      re.lastIndex = re.global ? match.index + match[0].length : lastIndex;
    }
    if (NPCG_INCLUDED && match && match.length > 1) {
      // Fix browsers whose `exec` methods don't consistently return `undefined`
      // for NPCG, like IE8. NOTE: This doesn' work for /(.?)?/
      nativeReplace.call(match[0], reCopy, function () {
        for (i = 1; i < arguments.length - 2; i++) {
          if (arguments[i] === undefined) match[i] = undefined;
        }
      });
    }

    return match;
  };
}

module.exports = patchedExec;

},{"./regexp-flags":200,"./regexp-sticky-helpers":201}],200:[function(require,module,exports){
'use strict';
var anObject = require('../internals/an-object');

// `RegExp.prototype.flags` getter implementation
// https://tc39.github.io/ecma262/#sec-get-regexp.prototype.flags
module.exports = function () {
  var that = anObject(this);
  var result = '';
  if (that.global) result += 'g';
  if (that.ignoreCase) result += 'i';
  if (that.multiline) result += 'm';
  if (that.dotAll) result += 's';
  if (that.unicode) result += 'u';
  if (that.sticky) result += 'y';
  return result;
};

},{"../internals/an-object":107}],201:[function(require,module,exports){
'use strict';

var fails = require('./fails');

// babel-minify transpiles RegExp('a', 'y') -> /a/y and it causes SyntaxError,
// so we use an intermediate function.
function RE(s, f) {
  return RegExp(s, f);
}

exports.UNSUPPORTED_Y = fails(function () {
  // babel-minify transpiles RegExp('a', 'y') -> /a/y and it causes SyntaxError
  var re = RE('a', 'y');
  re.lastIndex = 2;
  return re.exec('abcd') != null;
});

exports.BROKEN_CARET = fails(function () {
  // https://bugzilla.mozilla.org/show_bug.cgi?id=773687
  var re = RE('^r', 'gy');
  re.lastIndex = 2;
  return re.exec('str') != null;
});

},{"./fails":145}],202:[function(require,module,exports){
// `RequireObjectCoercible` abstract operation
// https://tc39.github.io/ecma262/#sec-requireobjectcoercible
module.exports = function (it) {
  if (it == undefined) throw TypeError("Can't call method on " + it);
  return it;
};

},{}],203:[function(require,module,exports){
// `SameValue` abstract operation
// https://tc39.github.io/ecma262/#sec-samevalue
module.exports = Object.is || function is(x, y) {
  // eslint-disable-next-line no-self-compare
  return x === y ? x !== 0 || 1 / x === 1 / y : x != x && y != y;
};

},{}],204:[function(require,module,exports){
var global = require('../internals/global');
var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');

module.exports = function (key, value) {
  try {
    createNonEnumerableProperty(global, key, value);
  } catch (error) {
    global[key] = value;
  } return value;
};

},{"../internals/create-non-enumerable-property":131,"../internals/global":150}],205:[function(require,module,exports){
'use strict';
var getBuiltIn = require('../internals/get-built-in');
var definePropertyModule = require('../internals/object-define-property');
var wellKnownSymbol = require('../internals/well-known-symbol');
var DESCRIPTORS = require('../internals/descriptors');

var SPECIES = wellKnownSymbol('species');

module.exports = function (CONSTRUCTOR_NAME) {
  var Constructor = getBuiltIn(CONSTRUCTOR_NAME);
  var defineProperty = definePropertyModule.f;

  if (DESCRIPTORS && Constructor && !Constructor[SPECIES]) {
    defineProperty(Constructor, SPECIES, {
      configurable: true,
      get: function () { return this; }
    });
  }
};

},{"../internals/descriptors":136,"../internals/get-built-in":148,"../internals/object-define-property":180,"../internals/well-known-symbol":231}],206:[function(require,module,exports){
var defineProperty = require('../internals/object-define-property').f;
var has = require('../internals/has');
var wellKnownSymbol = require('../internals/well-known-symbol');

var TO_STRING_TAG = wellKnownSymbol('toStringTag');

module.exports = function (it, TAG, STATIC) {
  if (it && !has(it = STATIC ? it : it.prototype, TO_STRING_TAG)) {
    defineProperty(it, TO_STRING_TAG, { configurable: true, value: TAG });
  }
};

},{"../internals/has":151,"../internals/object-define-property":180,"../internals/well-known-symbol":231}],207:[function(require,module,exports){
var shared = require('../internals/shared');
var uid = require('../internals/uid');

var keys = shared('keys');

module.exports = function (key) {
  return keys[key] || (keys[key] = uid(key));
};

},{"../internals/shared":209,"../internals/uid":228}],208:[function(require,module,exports){
var global = require('../internals/global');
var setGlobal = require('../internals/set-global');

var SHARED = '__core-js_shared__';
var store = global[SHARED] || setGlobal(SHARED, {});

module.exports = store;

},{"../internals/global":150,"../internals/set-global":204}],209:[function(require,module,exports){
var IS_PURE = require('../internals/is-pure');
var store = require('../internals/shared-store');

(module.exports = function (key, value) {
  return store[key] || (store[key] = value !== undefined ? value : {});
})('versions', []).push({
  version: '3.7.0',
  mode: IS_PURE ? 'pure' : 'global',
  copyright: '© 2020 Denis Pushkarev (zloirock.ru)'
});

},{"../internals/is-pure":165,"../internals/shared-store":208}],210:[function(require,module,exports){
var anObject = require('../internals/an-object');
var aFunction = require('../internals/a-function');
var wellKnownSymbol = require('../internals/well-known-symbol');

var SPECIES = wellKnownSymbol('species');

// `SpeciesConstructor` abstract operation
// https://tc39.github.io/ecma262/#sec-speciesconstructor
module.exports = function (O, defaultConstructor) {
  var C = anObject(O).constructor;
  var S;
  return C === undefined || (S = anObject(C)[SPECIES]) == undefined ? defaultConstructor : aFunction(S);
};

},{"../internals/a-function":102,"../internals/an-object":107,"../internals/well-known-symbol":231}],211:[function(require,module,exports){
var toInteger = require('../internals/to-integer');
var requireObjectCoercible = require('../internals/require-object-coercible');

// `String.prototype.{ codePointAt, at }` methods implementation
var createMethod = function (CONVERT_TO_STRING) {
  return function ($this, pos) {
    var S = String(requireObjectCoercible($this));
    var position = toInteger(pos);
    var size = S.length;
    var first, second;
    if (position < 0 || position >= size) return CONVERT_TO_STRING ? '' : undefined;
    first = S.charCodeAt(position);
    return first < 0xD800 || first > 0xDBFF || position + 1 === size
      || (second = S.charCodeAt(position + 1)) < 0xDC00 || second > 0xDFFF
        ? CONVERT_TO_STRING ? S.charAt(position) : first
        : CONVERT_TO_STRING ? S.slice(position, position + 2) : (first - 0xD800 << 10) + (second - 0xDC00) + 0x10000;
  };
};

module.exports = {
  // `String.prototype.codePointAt` method
  // https://tc39.github.io/ecma262/#sec-string.prototype.codepointat
  codeAt: createMethod(false),
  // `String.prototype.at` method
  // https://github.com/mathiasbynens/String.prototype.at
  charAt: createMethod(true)
};

},{"../internals/require-object-coercible":202,"../internals/to-integer":218}],212:[function(require,module,exports){
var fails = require('../internals/fails');
var whitespaces = require('../internals/whitespaces');

var non = '\u200B\u0085\u180E';

// check that a method works with the correct list
// of whitespaces and has a correct name
module.exports = function (METHOD_NAME) {
  return fails(function () {
    return !!whitespaces[METHOD_NAME]() || non[METHOD_NAME]() != non || whitespaces[METHOD_NAME].name !== METHOD_NAME;
  });
};

},{"../internals/fails":145,"../internals/whitespaces":232}],213:[function(require,module,exports){
var requireObjectCoercible = require('../internals/require-object-coercible');
var whitespaces = require('../internals/whitespaces');

var whitespace = '[' + whitespaces + ']';
var ltrim = RegExp('^' + whitespace + whitespace + '*');
var rtrim = RegExp(whitespace + whitespace + '*$');

// `String.prototype.{ trim, trimStart, trimEnd, trimLeft, trimRight }` methods implementation
var createMethod = function (TYPE) {
  return function ($this) {
    var string = String(requireObjectCoercible($this));
    if (TYPE & 1) string = string.replace(ltrim, '');
    if (TYPE & 2) string = string.replace(rtrim, '');
    return string;
  };
};

module.exports = {
  // `String.prototype.{ trimLeft, trimStart }` methods
  // https://tc39.github.io/ecma262/#sec-string.prototype.trimstart
  start: createMethod(1),
  // `String.prototype.{ trimRight, trimEnd }` methods
  // https://tc39.github.io/ecma262/#sec-string.prototype.trimend
  end: createMethod(2),
  // `String.prototype.trim` method
  // https://tc39.github.io/ecma262/#sec-string.prototype.trim
  trim: createMethod(3)
};

},{"../internals/require-object-coercible":202,"../internals/whitespaces":232}],214:[function(require,module,exports){
var global = require('../internals/global');
var fails = require('../internals/fails');
var bind = require('../internals/function-bind-context');
var html = require('../internals/html');
var createElement = require('../internals/document-create-element');
var IS_IOS = require('../internals/engine-is-ios');
var IS_NODE = require('../internals/engine-is-node');

var location = global.location;
var set = global.setImmediate;
var clear = global.clearImmediate;
var process = global.process;
var MessageChannel = global.MessageChannel;
var Dispatch = global.Dispatch;
var counter = 0;
var queue = {};
var ONREADYSTATECHANGE = 'onreadystatechange';
var defer, channel, port;

var run = function (id) {
  // eslint-disable-next-line no-prototype-builtins
  if (queue.hasOwnProperty(id)) {
    var fn = queue[id];
    delete queue[id];
    fn();
  }
};

var runner = function (id) {
  return function () {
    run(id);
  };
};

var listener = function (event) {
  run(event.data);
};

var post = function (id) {
  // old engines have not location.origin
  global.postMessage(id + '', location.protocol + '//' + location.host);
};

// Node.js 0.9+ & IE10+ has setImmediate, otherwise:
if (!set || !clear) {
  set = function setImmediate(fn) {
    var args = [];
    var i = 1;
    while (arguments.length > i) args.push(arguments[i++]);
    queue[++counter] = function () {
      // eslint-disable-next-line no-new-func
      (typeof fn == 'function' ? fn : Function(fn)).apply(undefined, args);
    };
    defer(counter);
    return counter;
  };
  clear = function clearImmediate(id) {
    delete queue[id];
  };
  // Node.js 0.8-
  if (IS_NODE) {
    defer = function (id) {
      process.nextTick(runner(id));
    };
  // Sphere (JS game engine) Dispatch API
  } else if (Dispatch && Dispatch.now) {
    defer = function (id) {
      Dispatch.now(runner(id));
    };
  // Browsers with MessageChannel, includes WebWorkers
  // except iOS - https://github.com/zloirock/core-js/issues/624
  } else if (MessageChannel && !IS_IOS) {
    channel = new MessageChannel();
    port = channel.port2;
    channel.port1.onmessage = listener;
    defer = bind(port.postMessage, port, 1);
  // Browsers with postMessage, skip WebWorkers
  // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'
  } else if (
    global.addEventListener &&
    typeof postMessage == 'function' &&
    !global.importScripts &&
    location && location.protocol !== 'file:' &&
    !fails(post)
  ) {
    defer = post;
    global.addEventListener('message', listener, false);
  // IE8-
  } else if (ONREADYSTATECHANGE in createElement('script')) {
    defer = function (id) {
      html.appendChild(createElement('script'))[ONREADYSTATECHANGE] = function () {
        html.removeChild(this);
        run(id);
      };
    };
  // Rest old browsers
  } else {
    defer = function (id) {
      setTimeout(runner(id), 0);
    };
  }
}

module.exports = {
  set: set,
  clear: clear
};

},{"../internals/document-create-element":137,"../internals/engine-is-ios":139,"../internals/engine-is-node":140,"../internals/fails":145,"../internals/function-bind-context":147,"../internals/global":150,"../internals/html":154}],215:[function(require,module,exports){
var toInteger = require('../internals/to-integer');

var max = Math.max;
var min = Math.min;

// Helper for a popular repeating case of the spec:
// Let integer be ? ToInteger(index).
// If integer < 0, let result be max((length + integer), 0); else let result be min(integer, length).
module.exports = function (index, length) {
  var integer = toInteger(index);
  return integer < 0 ? max(integer + length, 0) : min(integer, length);
};

},{"../internals/to-integer":218}],216:[function(require,module,exports){
var toInteger = require('../internals/to-integer');
var toLength = require('../internals/to-length');

// `ToIndex` abstract operation
// https://tc39.github.io/ecma262/#sec-toindex
module.exports = function (it) {
  if (it === undefined) return 0;
  var number = toInteger(it);
  var length = toLength(number);
  if (number !== length) throw RangeError('Wrong length or index');
  return length;
};

},{"../internals/to-integer":218,"../internals/to-length":219}],217:[function(require,module,exports){
// toObject with fallback for non-array-like ES3 strings
var IndexedObject = require('../internals/indexed-object');
var requireObjectCoercible = require('../internals/require-object-coercible');

module.exports = function (it) {
  return IndexedObject(requireObjectCoercible(it));
};

},{"../internals/indexed-object":157,"../internals/require-object-coercible":202}],218:[function(require,module,exports){
var ceil = Math.ceil;
var floor = Math.floor;

// `ToInteger` abstract operation
// https://tc39.github.io/ecma262/#sec-tointeger
module.exports = function (argument) {
  return isNaN(argument = +argument) ? 0 : (argument > 0 ? floor : ceil)(argument);
};

},{}],219:[function(require,module,exports){
var toInteger = require('../internals/to-integer');

var min = Math.min;

// `ToLength` abstract operation
// https://tc39.github.io/ecma262/#sec-tolength
module.exports = function (argument) {
  return argument > 0 ? min(toInteger(argument), 0x1FFFFFFFFFFFFF) : 0; // 2 ** 53 - 1 == 9007199254740991
};

},{"../internals/to-integer":218}],220:[function(require,module,exports){
var requireObjectCoercible = require('../internals/require-object-coercible');

// `ToObject` abstract operation
// https://tc39.github.io/ecma262/#sec-toobject
module.exports = function (argument) {
  return Object(requireObjectCoercible(argument));
};

},{"../internals/require-object-coercible":202}],221:[function(require,module,exports){
var toPositiveInteger = require('../internals/to-positive-integer');

module.exports = function (it, BYTES) {
  var offset = toPositiveInteger(it);
  if (offset % BYTES) throw RangeError('Wrong offset');
  return offset;
};

},{"../internals/to-positive-integer":222}],222:[function(require,module,exports){
var toInteger = require('../internals/to-integer');

module.exports = function (it) {
  var result = toInteger(it);
  if (result < 0) throw RangeError("The argument can't be less than 0");
  return result;
};

},{"../internals/to-integer":218}],223:[function(require,module,exports){
var isObject = require('../internals/is-object');

// `ToPrimitive` abstract operation
// https://tc39.github.io/ecma262/#sec-toprimitive
// instead of the ES6 spec version, we didn't implement @@toPrimitive case
// and the second argument - flag - preferred type is a string
module.exports = function (input, PREFERRED_STRING) {
  if (!isObject(input)) return input;
  var fn, val;
  if (PREFERRED_STRING && typeof (fn = input.toString) == 'function' && !isObject(val = fn.call(input))) return val;
  if (typeof (fn = input.valueOf) == 'function' && !isObject(val = fn.call(input))) return val;
  if (!PREFERRED_STRING && typeof (fn = input.toString) == 'function' && !isObject(val = fn.call(input))) return val;
  throw TypeError("Can't convert object to primitive value");
};

},{"../internals/is-object":164}],224:[function(require,module,exports){
var wellKnownSymbol = require('../internals/well-known-symbol');

var TO_STRING_TAG = wellKnownSymbol('toStringTag');
var test = {};

test[TO_STRING_TAG] = 'z';

module.exports = String(test) === '[object z]';

},{"../internals/well-known-symbol":231}],225:[function(require,module,exports){
'use strict';
var $ = require('../internals/export');
var global = require('../internals/global');
var DESCRIPTORS = require('../internals/descriptors');
var TYPED_ARRAYS_CONSTRUCTORS_REQUIRES_WRAPPERS = require('../internals/typed-array-constructors-require-wrappers');
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var ArrayBufferModule = require('../internals/array-buffer');
var anInstance = require('../internals/an-instance');
var createPropertyDescriptor = require('../internals/create-property-descriptor');
var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');
var toLength = require('../internals/to-length');
var toIndex = require('../internals/to-index');
var toOffset = require('../internals/to-offset');
var toPrimitive = require('../internals/to-primitive');
var has = require('../internals/has');
var classof = require('../internals/classof');
var isObject = require('../internals/is-object');
var create = require('../internals/object-create');
var setPrototypeOf = require('../internals/object-set-prototype-of');
var getOwnPropertyNames = require('../internals/object-get-own-property-names').f;
var typedArrayFrom = require('../internals/typed-array-from');
var forEach = require('../internals/array-iteration').forEach;
var setSpecies = require('../internals/set-species');
var definePropertyModule = require('../internals/object-define-property');
var getOwnPropertyDescriptorModule = require('../internals/object-get-own-property-descriptor');
var InternalStateModule = require('../internals/internal-state');
var inheritIfRequired = require('../internals/inherit-if-required');

var getInternalState = InternalStateModule.get;
var setInternalState = InternalStateModule.set;
var nativeDefineProperty = definePropertyModule.f;
var nativeGetOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;
var round = Math.round;
var RangeError = global.RangeError;
var ArrayBuffer = ArrayBufferModule.ArrayBuffer;
var DataView = ArrayBufferModule.DataView;
var NATIVE_ARRAY_BUFFER_VIEWS = ArrayBufferViewCore.NATIVE_ARRAY_BUFFER_VIEWS;
var TYPED_ARRAY_TAG = ArrayBufferViewCore.TYPED_ARRAY_TAG;
var TypedArray = ArrayBufferViewCore.TypedArray;
var TypedArrayPrototype = ArrayBufferViewCore.TypedArrayPrototype;
var aTypedArrayConstructor = ArrayBufferViewCore.aTypedArrayConstructor;
var isTypedArray = ArrayBufferViewCore.isTypedArray;
var BYTES_PER_ELEMENT = 'BYTES_PER_ELEMENT';
var WRONG_LENGTH = 'Wrong length';

var fromList = function (C, list) {
  var index = 0;
  var length = list.length;
  var result = new (aTypedArrayConstructor(C))(length);
  while (length > index) result[index] = list[index++];
  return result;
};

var addGetter = function (it, key) {
  nativeDefineProperty(it, key, { get: function () {
    return getInternalState(this)[key];
  } });
};

var isArrayBuffer = function (it) {
  var klass;
  return it instanceof ArrayBuffer || (klass = classof(it)) == 'ArrayBuffer' || klass == 'SharedArrayBuffer';
};

var isTypedArrayIndex = function (target, key) {
  return isTypedArray(target)
    && typeof key != 'symbol'
    && key in target
    && String(+key) == String(key);
};

var wrappedGetOwnPropertyDescriptor = function getOwnPropertyDescriptor(target, key) {
  return isTypedArrayIndex(target, key = toPrimitive(key, true))
    ? createPropertyDescriptor(2, target[key])
    : nativeGetOwnPropertyDescriptor(target, key);
};

var wrappedDefineProperty = function defineProperty(target, key, descriptor) {
  if (isTypedArrayIndex(target, key = toPrimitive(key, true))
    && isObject(descriptor)
    && has(descriptor, 'value')
    && !has(descriptor, 'get')
    && !has(descriptor, 'set')
    // TODO: add validation descriptor w/o calling accessors
    && !descriptor.configurable
    && (!has(descriptor, 'writable') || descriptor.writable)
    && (!has(descriptor, 'enumerable') || descriptor.enumerable)
  ) {
    target[key] = descriptor.value;
    return target;
  } return nativeDefineProperty(target, key, descriptor);
};

if (DESCRIPTORS) {
  if (!NATIVE_ARRAY_BUFFER_VIEWS) {
    getOwnPropertyDescriptorModule.f = wrappedGetOwnPropertyDescriptor;
    definePropertyModule.f = wrappedDefineProperty;
    addGetter(TypedArrayPrototype, 'buffer');
    addGetter(TypedArrayPrototype, 'byteOffset');
    addGetter(TypedArrayPrototype, 'byteLength');
    addGetter(TypedArrayPrototype, 'length');
  }

  $({ target: 'Object', stat: true, forced: !NATIVE_ARRAY_BUFFER_VIEWS }, {
    getOwnPropertyDescriptor: wrappedGetOwnPropertyDescriptor,
    defineProperty: wrappedDefineProperty
  });

  module.exports = function (TYPE, wrapper, CLAMPED) {
    var BYTES = TYPE.match(/\d+$/)[0] / 8;
    var CONSTRUCTOR_NAME = TYPE + (CLAMPED ? 'Clamped' : '') + 'Array';
    var GETTER = 'get' + TYPE;
    var SETTER = 'set' + TYPE;
    var NativeTypedArrayConstructor = global[CONSTRUCTOR_NAME];
    var TypedArrayConstructor = NativeTypedArrayConstructor;
    var TypedArrayConstructorPrototype = TypedArrayConstructor && TypedArrayConstructor.prototype;
    var exported = {};

    var getter = function (that, index) {
      var data = getInternalState(that);
      return data.view[GETTER](index * BYTES + data.byteOffset, true);
    };

    var setter = function (that, index, value) {
      var data = getInternalState(that);
      if (CLAMPED) value = (value = round(value)) < 0 ? 0 : value > 0xFF ? 0xFF : value & 0xFF;
      data.view[SETTER](index * BYTES + data.byteOffset, value, true);
    };

    var addElement = function (that, index) {
      nativeDefineProperty(that, index, {
        get: function () {
          return getter(this, index);
        },
        set: function (value) {
          return setter(this, index, value);
        },
        enumerable: true
      });
    };

    if (!NATIVE_ARRAY_BUFFER_VIEWS) {
      TypedArrayConstructor = wrapper(function (that, data, offset, $length) {
        anInstance(that, TypedArrayConstructor, CONSTRUCTOR_NAME);
        var index = 0;
        var byteOffset = 0;
        var buffer, byteLength, length;
        if (!isObject(data)) {
          length = toIndex(data);
          byteLength = length * BYTES;
          buffer = new ArrayBuffer(byteLength);
        } else if (isArrayBuffer(data)) {
          buffer = data;
          byteOffset = toOffset(offset, BYTES);
          var $len = data.byteLength;
          if ($length === undefined) {
            if ($len % BYTES) throw RangeError(WRONG_LENGTH);
            byteLength = $len - byteOffset;
            if (byteLength < 0) throw RangeError(WRONG_LENGTH);
          } else {
            byteLength = toLength($length) * BYTES;
            if (byteLength + byteOffset > $len) throw RangeError(WRONG_LENGTH);
          }
          length = byteLength / BYTES;
        } else if (isTypedArray(data)) {
          return fromList(TypedArrayConstructor, data);
        } else {
          return typedArrayFrom.call(TypedArrayConstructor, data);
        }
        setInternalState(that, {
          buffer: buffer,
          byteOffset: byteOffset,
          byteLength: byteLength,
          length: length,
          view: new DataView(buffer)
        });
        while (index < length) addElement(that, index++);
      });

      if (setPrototypeOf) setPrototypeOf(TypedArrayConstructor, TypedArray);
      TypedArrayConstructorPrototype = TypedArrayConstructor.prototype = create(TypedArrayPrototype);
    } else if (TYPED_ARRAYS_CONSTRUCTORS_REQUIRES_WRAPPERS) {
      TypedArrayConstructor = wrapper(function (dummy, data, typedArrayOffset, $length) {
        anInstance(dummy, TypedArrayConstructor, CONSTRUCTOR_NAME);
        return inheritIfRequired(function () {
          if (!isObject(data)) return new NativeTypedArrayConstructor(toIndex(data));
          if (isArrayBuffer(data)) return $length !== undefined
            ? new NativeTypedArrayConstructor(data, toOffset(typedArrayOffset, BYTES), $length)
            : typedArrayOffset !== undefined
              ? new NativeTypedArrayConstructor(data, toOffset(typedArrayOffset, BYTES))
              : new NativeTypedArrayConstructor(data);
          if (isTypedArray(data)) return fromList(TypedArrayConstructor, data);
          return typedArrayFrom.call(TypedArrayConstructor, data);
        }(), dummy, TypedArrayConstructor);
      });

      if (setPrototypeOf) setPrototypeOf(TypedArrayConstructor, TypedArray);
      forEach(getOwnPropertyNames(NativeTypedArrayConstructor), function (key) {
        if (!(key in TypedArrayConstructor)) {
          createNonEnumerableProperty(TypedArrayConstructor, key, NativeTypedArrayConstructor[key]);
        }
      });
      TypedArrayConstructor.prototype = TypedArrayConstructorPrototype;
    }

    if (TypedArrayConstructorPrototype.constructor !== TypedArrayConstructor) {
      createNonEnumerableProperty(TypedArrayConstructorPrototype, 'constructor', TypedArrayConstructor);
    }

    if (TYPED_ARRAY_TAG) {
      createNonEnumerableProperty(TypedArrayConstructorPrototype, TYPED_ARRAY_TAG, CONSTRUCTOR_NAME);
    }

    exported[CONSTRUCTOR_NAME] = TypedArrayConstructor;

    $({
      global: true, forced: TypedArrayConstructor != NativeTypedArrayConstructor, sham: !NATIVE_ARRAY_BUFFER_VIEWS
    }, exported);

    if (!(BYTES_PER_ELEMENT in TypedArrayConstructor)) {
      createNonEnumerableProperty(TypedArrayConstructor, BYTES_PER_ELEMENT, BYTES);
    }

    if (!(BYTES_PER_ELEMENT in TypedArrayConstructorPrototype)) {
      createNonEnumerableProperty(TypedArrayConstructorPrototype, BYTES_PER_ELEMENT, BYTES);
    }

    setSpecies(CONSTRUCTOR_NAME);
  };
} else module.exports = function () { /* empty */ };

},{"../internals/an-instance":106,"../internals/array-buffer":110,"../internals/array-buffer-view-core":109,"../internals/array-iteration":116,"../internals/classof":126,"../internals/create-non-enumerable-property":131,"../internals/create-property-descriptor":132,"../internals/descriptors":136,"../internals/export":144,"../internals/global":150,"../internals/has":151,"../internals/inherit-if-required":158,"../internals/internal-state":160,"../internals/is-object":164,"../internals/object-create":178,"../internals/object-define-property":180,"../internals/object-get-own-property-descriptor":181,"../internals/object-get-own-property-names":183,"../internals/object-set-prototype-of":189,"../internals/set-species":205,"../internals/to-index":216,"../internals/to-length":219,"../internals/to-offset":221,"../internals/to-primitive":223,"../internals/typed-array-constructors-require-wrappers":226,"../internals/typed-array-from":227}],226:[function(require,module,exports){
/* eslint-disable no-new */
var global = require('../internals/global');
var fails = require('../internals/fails');
var checkCorrectnessOfIteration = require('../internals/check-correctness-of-iteration');
var NATIVE_ARRAY_BUFFER_VIEWS = require('../internals/array-buffer-view-core').NATIVE_ARRAY_BUFFER_VIEWS;

var ArrayBuffer = global.ArrayBuffer;
var Int8Array = global.Int8Array;

module.exports = !NATIVE_ARRAY_BUFFER_VIEWS || !fails(function () {
  Int8Array(1);
}) || !fails(function () {
  new Int8Array(-1);
}) || !checkCorrectnessOfIteration(function (iterable) {
  new Int8Array();
  new Int8Array(null);
  new Int8Array(1.5);
  new Int8Array(iterable);
}, true) || fails(function () {
  // Safari (11+) bug - a reason why even Safari 13 should load a typed array polyfill
  return new Int8Array(new ArrayBuffer(2), 1, undefined).length !== 1;
});

},{"../internals/array-buffer-view-core":109,"../internals/check-correctness-of-iteration":124,"../internals/fails":145,"../internals/global":150}],227:[function(require,module,exports){
var toObject = require('../internals/to-object');
var toLength = require('../internals/to-length');
var getIteratorMethod = require('../internals/get-iterator-method');
var isArrayIteratorMethod = require('../internals/is-array-iterator-method');
var bind = require('../internals/function-bind-context');
var aTypedArrayConstructor = require('../internals/array-buffer-view-core').aTypedArrayConstructor;

module.exports = function from(source /* , mapfn, thisArg */) {
  var O = toObject(source);
  var argumentsLength = arguments.length;
  var mapfn = argumentsLength > 1 ? arguments[1] : undefined;
  var mapping = mapfn !== undefined;
  var iteratorMethod = getIteratorMethod(O);
  var i, length, result, step, iterator, next;
  if (iteratorMethod != undefined && !isArrayIteratorMethod(iteratorMethod)) {
    iterator = iteratorMethod.call(O);
    next = iterator.next;
    O = [];
    while (!(step = next.call(iterator)).done) {
      O.push(step.value);
    }
  }
  if (mapping && argumentsLength > 2) {
    mapfn = bind(mapfn, arguments[2], 2);
  }
  length = toLength(O.length);
  result = new (aTypedArrayConstructor(this))(length);
  for (i = 0; length > i; i++) {
    result[i] = mapping ? mapfn(O[i], i) : O[i];
  }
  return result;
};

},{"../internals/array-buffer-view-core":109,"../internals/function-bind-context":147,"../internals/get-iterator-method":149,"../internals/is-array-iterator-method":161,"../internals/to-length":219,"../internals/to-object":220}],228:[function(require,module,exports){
var id = 0;
var postfix = Math.random();

module.exports = function (key) {
  return 'Symbol(' + String(key === undefined ? '' : key) + ')_' + (++id + postfix).toString(36);
};

},{}],229:[function(require,module,exports){
var NATIVE_SYMBOL = require('../internals/native-symbol');

module.exports = NATIVE_SYMBOL
  // eslint-disable-next-line no-undef
  && !Symbol.sham
  // eslint-disable-next-line no-undef
  && typeof Symbol.iterator == 'symbol';

},{"../internals/native-symbol":173}],230:[function(require,module,exports){
var wellKnownSymbol = require('../internals/well-known-symbol');

exports.f = wellKnownSymbol;

},{"../internals/well-known-symbol":231}],231:[function(require,module,exports){
var global = require('../internals/global');
var shared = require('../internals/shared');
var has = require('../internals/has');
var uid = require('../internals/uid');
var NATIVE_SYMBOL = require('../internals/native-symbol');
var USE_SYMBOL_AS_UID = require('../internals/use-symbol-as-uid');

var WellKnownSymbolsStore = shared('wks');
var Symbol = global.Symbol;
var createWellKnownSymbol = USE_SYMBOL_AS_UID ? Symbol : Symbol && Symbol.withoutSetter || uid;

module.exports = function (name) {
  if (!has(WellKnownSymbolsStore, name)) {
    if (NATIVE_SYMBOL && has(Symbol, name)) WellKnownSymbolsStore[name] = Symbol[name];
    else WellKnownSymbolsStore[name] = createWellKnownSymbol('Symbol.' + name);
  } return WellKnownSymbolsStore[name];
};

},{"../internals/global":150,"../internals/has":151,"../internals/native-symbol":173,"../internals/shared":209,"../internals/uid":228,"../internals/use-symbol-as-uid":229}],232:[function(require,module,exports){
// a string of all valid unicode whitespaces
// eslint-disable-next-line max-len
module.exports = '\u0009\u000A\u000B\u000C\u000D\u0020\u00A0\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF';

},{}],233:[function(require,module,exports){
'use strict';
var $ = require('../internals/export');
var fails = require('../internals/fails');
var ArrayBufferModule = require('../internals/array-buffer');
var anObject = require('../internals/an-object');
var toAbsoluteIndex = require('../internals/to-absolute-index');
var toLength = require('../internals/to-length');
var speciesConstructor = require('../internals/species-constructor');

var ArrayBuffer = ArrayBufferModule.ArrayBuffer;
var DataView = ArrayBufferModule.DataView;
var nativeArrayBufferSlice = ArrayBuffer.prototype.slice;

var INCORRECT_SLICE = fails(function () {
  return !new ArrayBuffer(2).slice(1, undefined).byteLength;
});

// `ArrayBuffer.prototype.slice` method
// https://tc39.github.io/ecma262/#sec-arraybuffer.prototype.slice
$({ target: 'ArrayBuffer', proto: true, unsafe: true, forced: INCORRECT_SLICE }, {
  slice: function slice(start, end) {
    if (nativeArrayBufferSlice !== undefined && end === undefined) {
      return nativeArrayBufferSlice.call(anObject(this), start); // FF fix
    }
    var length = anObject(this).byteLength;
    var first = toAbsoluteIndex(start, length);
    var fin = toAbsoluteIndex(end === undefined ? length : end, length);
    var result = new (speciesConstructor(this, ArrayBuffer))(toLength(fin - first));
    var viewSource = new DataView(this);
    var viewTarget = new DataView(result);
    var index = 0;
    while (first < fin) {
      viewTarget.setUint8(index++, viewSource.getUint8(first++));
    } return result;
  }
});

},{"../internals/an-object":107,"../internals/array-buffer":110,"../internals/export":144,"../internals/fails":145,"../internals/species-constructor":210,"../internals/to-absolute-index":215,"../internals/to-length":219}],234:[function(require,module,exports){
'use strict';
var $ = require('../internals/export');
var fails = require('../internals/fails');
var isArray = require('../internals/is-array');
var isObject = require('../internals/is-object');
var toObject = require('../internals/to-object');
var toLength = require('../internals/to-length');
var createProperty = require('../internals/create-property');
var arraySpeciesCreate = require('../internals/array-species-create');
var arrayMethodHasSpeciesSupport = require('../internals/array-method-has-species-support');
var wellKnownSymbol = require('../internals/well-known-symbol');
var V8_VERSION = require('../internals/engine-v8-version');

var IS_CONCAT_SPREADABLE = wellKnownSymbol('isConcatSpreadable');
var MAX_SAFE_INTEGER = 0x1FFFFFFFFFFFFF;
var MAXIMUM_ALLOWED_INDEX_EXCEEDED = 'Maximum allowed index exceeded';

// We can't use this feature detection in V8 since it causes
// deoptimization and serious performance degradation
// https://github.com/zloirock/core-js/issues/679
var IS_CONCAT_SPREADABLE_SUPPORT = V8_VERSION >= 51 || !fails(function () {
  var array = [];
  array[IS_CONCAT_SPREADABLE] = false;
  return array.concat()[0] !== array;
});

var SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('concat');

var isConcatSpreadable = function (O) {
  if (!isObject(O)) return false;
  var spreadable = O[IS_CONCAT_SPREADABLE];
  return spreadable !== undefined ? !!spreadable : isArray(O);
};

var FORCED = !IS_CONCAT_SPREADABLE_SUPPORT || !SPECIES_SUPPORT;

// `Array.prototype.concat` method
// https://tc39.github.io/ecma262/#sec-array.prototype.concat
// with adding support of @@isConcatSpreadable and @@species
$({ target: 'Array', proto: true, forced: FORCED }, {
  concat: function concat(arg) { // eslint-disable-line no-unused-vars
    var O = toObject(this);
    var A = arraySpeciesCreate(O, 0);
    var n = 0;
    var i, k, length, len, E;
    for (i = -1, length = arguments.length; i < length; i++) {
      E = i === -1 ? O : arguments[i];
      if (isConcatSpreadable(E)) {
        len = toLength(E.length);
        if (n + len > MAX_SAFE_INTEGER) throw TypeError(MAXIMUM_ALLOWED_INDEX_EXCEEDED);
        for (k = 0; k < len; k++, n++) if (k in E) createProperty(A, n, E[k]);
      } else {
        if (n >= MAX_SAFE_INTEGER) throw TypeError(MAXIMUM_ALLOWED_INDEX_EXCEEDED);
        createProperty(A, n++, E);
      }
    }
    A.length = n;
    return A;
  }
});

},{"../internals/array-method-has-species-support":118,"../internals/array-species-create":122,"../internals/create-property":133,"../internals/engine-v8-version":142,"../internals/export":144,"../internals/fails":145,"../internals/is-array":162,"../internals/is-object":164,"../internals/to-length":219,"../internals/to-object":220,"../internals/well-known-symbol":231}],235:[function(require,module,exports){
var $ = require('../internals/export');
var fill = require('../internals/array-fill');
var addToUnscopables = require('../internals/add-to-unscopables');

// `Array.prototype.fill` method
// https://tc39.github.io/ecma262/#sec-array.prototype.fill
$({ target: 'Array', proto: true }, {
  fill: fill
});

// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables
addToUnscopables('fill');

},{"../internals/add-to-unscopables":104,"../internals/array-fill":112,"../internals/export":144}],236:[function(require,module,exports){
'use strict';
var $ = require('../internals/export');
var $filter = require('../internals/array-iteration').filter;
var arrayMethodHasSpeciesSupport = require('../internals/array-method-has-species-support');
var arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');

var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('filter');
// Edge 14- issue
var USES_TO_LENGTH = arrayMethodUsesToLength('filter');

// `Array.prototype.filter` method
// https://tc39.github.io/ecma262/#sec-array.prototype.filter
// with adding support of @@species
$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT || !USES_TO_LENGTH }, {
  filter: function filter(callbackfn /* , thisArg */) {
    return $filter(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});

},{"../internals/array-iteration":116,"../internals/array-method-has-species-support":118,"../internals/array-method-uses-to-length":120,"../internals/export":144}],237:[function(require,module,exports){
'use strict';
var $ = require('../internals/export');
var $find = require('../internals/array-iteration').find;
var addToUnscopables = require('../internals/add-to-unscopables');
var arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');

var FIND = 'find';
var SKIPS_HOLES = true;

var USES_TO_LENGTH = arrayMethodUsesToLength(FIND);

// Shouldn't skip holes
if (FIND in []) Array(1)[FIND](function () { SKIPS_HOLES = false; });

// `Array.prototype.find` method
// https://tc39.github.io/ecma262/#sec-array.prototype.find
$({ target: 'Array', proto: true, forced: SKIPS_HOLES || !USES_TO_LENGTH }, {
  find: function find(callbackfn /* , that = undefined */) {
    return $find(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});

// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables
addToUnscopables(FIND);

},{"../internals/add-to-unscopables":104,"../internals/array-iteration":116,"../internals/array-method-uses-to-length":120,"../internals/export":144}],238:[function(require,module,exports){
'use strict';
var $ = require('../internals/export');
var forEach = require('../internals/array-for-each');

// `Array.prototype.forEach` method
// https://tc39.github.io/ecma262/#sec-array.prototype.foreach
$({ target: 'Array', proto: true, forced: [].forEach != forEach }, {
  forEach: forEach
});

},{"../internals/array-for-each":113,"../internals/export":144}],239:[function(require,module,exports){
var $ = require('../internals/export');
var from = require('../internals/array-from');
var checkCorrectnessOfIteration = require('../internals/check-correctness-of-iteration');

var INCORRECT_ITERATION = !checkCorrectnessOfIteration(function (iterable) {
  Array.from(iterable);
});

// `Array.from` method
// https://tc39.github.io/ecma262/#sec-array.from
$({ target: 'Array', stat: true, forced: INCORRECT_ITERATION }, {
  from: from
});

},{"../internals/array-from":114,"../internals/check-correctness-of-iteration":124,"../internals/export":144}],240:[function(require,module,exports){
'use strict';
var $ = require('../internals/export');
var $includes = require('../internals/array-includes').includes;
var addToUnscopables = require('../internals/add-to-unscopables');
var arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');

var USES_TO_LENGTH = arrayMethodUsesToLength('indexOf', { ACCESSORS: true, 1: 0 });

// `Array.prototype.includes` method
// https://tc39.github.io/ecma262/#sec-array.prototype.includes
$({ target: 'Array', proto: true, forced: !USES_TO_LENGTH }, {
  includes: function includes(el /* , fromIndex = 0 */) {
    return $includes(this, el, arguments.length > 1 ? arguments[1] : undefined);
  }
});

// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables
addToUnscopables('includes');

},{"../internals/add-to-unscopables":104,"../internals/array-includes":115,"../internals/array-method-uses-to-length":120,"../internals/export":144}],241:[function(require,module,exports){
'use strict';
var $ = require('../internals/export');
var $indexOf = require('../internals/array-includes').indexOf;
var arrayMethodIsStrict = require('../internals/array-method-is-strict');
var arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');

var nativeIndexOf = [].indexOf;

var NEGATIVE_ZERO = !!nativeIndexOf && 1 / [1].indexOf(1, -0) < 0;
var STRICT_METHOD = arrayMethodIsStrict('indexOf');
var USES_TO_LENGTH = arrayMethodUsesToLength('indexOf', { ACCESSORS: true, 1: 0 });

// `Array.prototype.indexOf` method
// https://tc39.github.io/ecma262/#sec-array.prototype.indexof
$({ target: 'Array', proto: true, forced: NEGATIVE_ZERO || !STRICT_METHOD || !USES_TO_LENGTH }, {
  indexOf: function indexOf(searchElement /* , fromIndex = 0 */) {
    return NEGATIVE_ZERO
      // convert -0 to +0
      ? nativeIndexOf.apply(this, arguments) || 0
      : $indexOf(this, searchElement, arguments.length > 1 ? arguments[1] : undefined);
  }
});

},{"../internals/array-includes":115,"../internals/array-method-is-strict":119,"../internals/array-method-uses-to-length":120,"../internals/export":144}],242:[function(require,module,exports){
'use strict';
var toIndexedObject = require('../internals/to-indexed-object');
var addToUnscopables = require('../internals/add-to-unscopables');
var Iterators = require('../internals/iterators');
var InternalStateModule = require('../internals/internal-state');
var defineIterator = require('../internals/define-iterator');

var ARRAY_ITERATOR = 'Array Iterator';
var setInternalState = InternalStateModule.set;
var getInternalState = InternalStateModule.getterFor(ARRAY_ITERATOR);

// `Array.prototype.entries` method
// https://tc39.github.io/ecma262/#sec-array.prototype.entries
// `Array.prototype.keys` method
// https://tc39.github.io/ecma262/#sec-array.prototype.keys
// `Array.prototype.values` method
// https://tc39.github.io/ecma262/#sec-array.prototype.values
// `Array.prototype[@@iterator]` method
// https://tc39.github.io/ecma262/#sec-array.prototype-@@iterator
// `CreateArrayIterator` internal method
// https://tc39.github.io/ecma262/#sec-createarrayiterator
module.exports = defineIterator(Array, 'Array', function (iterated, kind) {
  setInternalState(this, {
    type: ARRAY_ITERATOR,
    target: toIndexedObject(iterated), // target
    index: 0,                          // next index
    kind: kind                         // kind
  });
// `%ArrayIteratorPrototype%.next` method
// https://tc39.github.io/ecma262/#sec-%arrayiteratorprototype%.next
}, function () {
  var state = getInternalState(this);
  var target = state.target;
  var kind = state.kind;
  var index = state.index++;
  if (!target || index >= target.length) {
    state.target = undefined;
    return { value: undefined, done: true };
  }
  if (kind == 'keys') return { value: index, done: false };
  if (kind == 'values') return { value: target[index], done: false };
  return { value: [index, target[index]], done: false };
}, 'values');

// argumentsList[@@iterator] is %ArrayProto_values%
// https://tc39.github.io/ecma262/#sec-createunmappedargumentsobject
// https://tc39.github.io/ecma262/#sec-createmappedargumentsobject
Iterators.Arguments = Iterators.Array;

// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables
addToUnscopables('keys');
addToUnscopables('values');
addToUnscopables('entries');

},{"../internals/add-to-unscopables":104,"../internals/define-iterator":134,"../internals/internal-state":160,"../internals/iterators":170,"../internals/to-indexed-object":217}],243:[function(require,module,exports){
'use strict';
var $ = require('../internals/export');
var IndexedObject = require('../internals/indexed-object');
var toIndexedObject = require('../internals/to-indexed-object');
var arrayMethodIsStrict = require('../internals/array-method-is-strict');

var nativeJoin = [].join;

var ES3_STRINGS = IndexedObject != Object;
var STRICT_METHOD = arrayMethodIsStrict('join', ',');

// `Array.prototype.join` method
// https://tc39.github.io/ecma262/#sec-array.prototype.join
$({ target: 'Array', proto: true, forced: ES3_STRINGS || !STRICT_METHOD }, {
  join: function join(separator) {
    return nativeJoin.call(toIndexedObject(this), separator === undefined ? ',' : separator);
  }
});

},{"../internals/array-method-is-strict":119,"../internals/export":144,"../internals/indexed-object":157,"../internals/to-indexed-object":217}],244:[function(require,module,exports){
var $ = require('../internals/export');
var lastIndexOf = require('../internals/array-last-index-of');

// `Array.prototype.lastIndexOf` method
// https://tc39.github.io/ecma262/#sec-array.prototype.lastindexof
$({ target: 'Array', proto: true, forced: lastIndexOf !== [].lastIndexOf }, {
  lastIndexOf: lastIndexOf
});

},{"../internals/array-last-index-of":117,"../internals/export":144}],245:[function(require,module,exports){
'use strict';
var $ = require('../internals/export');
var $map = require('../internals/array-iteration').map;
var arrayMethodHasSpeciesSupport = require('../internals/array-method-has-species-support');
var arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');

var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('map');
// FF49- issue
var USES_TO_LENGTH = arrayMethodUsesToLength('map');

// `Array.prototype.map` method
// https://tc39.github.io/ecma262/#sec-array.prototype.map
// with adding support of @@species
$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT || !USES_TO_LENGTH }, {
  map: function map(callbackfn /* , thisArg */) {
    return $map(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});

},{"../internals/array-iteration":116,"../internals/array-method-has-species-support":118,"../internals/array-method-uses-to-length":120,"../internals/export":144}],246:[function(require,module,exports){
'use strict';
var $ = require('../internals/export');
var isObject = require('../internals/is-object');
var isArray = require('../internals/is-array');
var toAbsoluteIndex = require('../internals/to-absolute-index');
var toLength = require('../internals/to-length');
var toIndexedObject = require('../internals/to-indexed-object');
var createProperty = require('../internals/create-property');
var wellKnownSymbol = require('../internals/well-known-symbol');
var arrayMethodHasSpeciesSupport = require('../internals/array-method-has-species-support');
var arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');

var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('slice');
var USES_TO_LENGTH = arrayMethodUsesToLength('slice', { ACCESSORS: true, 0: 0, 1: 2 });

var SPECIES = wellKnownSymbol('species');
var nativeSlice = [].slice;
var max = Math.max;

// `Array.prototype.slice` method
// https://tc39.github.io/ecma262/#sec-array.prototype.slice
// fallback for not array-like ES3 strings and DOM objects
$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT || !USES_TO_LENGTH }, {
  slice: function slice(start, end) {
    var O = toIndexedObject(this);
    var length = toLength(O.length);
    var k = toAbsoluteIndex(start, length);
    var fin = toAbsoluteIndex(end === undefined ? length : end, length);
    // inline `ArraySpeciesCreate` for usage native `Array#slice` where it's possible
    var Constructor, result, n;
    if (isArray(O)) {
      Constructor = O.constructor;
      // cross-realm fallback
      if (typeof Constructor == 'function' && (Constructor === Array || isArray(Constructor.prototype))) {
        Constructor = undefined;
      } else if (isObject(Constructor)) {
        Constructor = Constructor[SPECIES];
        if (Constructor === null) Constructor = undefined;
      }
      if (Constructor === Array || Constructor === undefined) {
        return nativeSlice.call(O, k, fin);
      }
    }
    result = new (Constructor === undefined ? Array : Constructor)(max(fin - k, 0));
    for (n = 0; k < fin; k++, n++) if (k in O) createProperty(result, n, O[k]);
    result.length = n;
    return result;
  }
});

},{"../internals/array-method-has-species-support":118,"../internals/array-method-uses-to-length":120,"../internals/create-property":133,"../internals/export":144,"../internals/is-array":162,"../internals/is-object":164,"../internals/to-absolute-index":215,"../internals/to-indexed-object":217,"../internals/to-length":219,"../internals/well-known-symbol":231}],247:[function(require,module,exports){
'use strict';
var $ = require('../internals/export');
var aFunction = require('../internals/a-function');
var toObject = require('../internals/to-object');
var fails = require('../internals/fails');
var arrayMethodIsStrict = require('../internals/array-method-is-strict');

var test = [];
var nativeSort = test.sort;

// IE8-
var FAILS_ON_UNDEFINED = fails(function () {
  test.sort(undefined);
});
// V8 bug
var FAILS_ON_NULL = fails(function () {
  test.sort(null);
});
// Old WebKit
var STRICT_METHOD = arrayMethodIsStrict('sort');

var FORCED = FAILS_ON_UNDEFINED || !FAILS_ON_NULL || !STRICT_METHOD;

// `Array.prototype.sort` method
// https://tc39.github.io/ecma262/#sec-array.prototype.sort
$({ target: 'Array', proto: true, forced: FORCED }, {
  sort: function sort(comparefn) {
    return comparefn === undefined
      ? nativeSort.call(toObject(this))
      : nativeSort.call(toObject(this), aFunction(comparefn));
  }
});

},{"../internals/a-function":102,"../internals/array-method-is-strict":119,"../internals/export":144,"../internals/fails":145,"../internals/to-object":220}],248:[function(require,module,exports){
'use strict';
var $ = require('../internals/export');
var toAbsoluteIndex = require('../internals/to-absolute-index');
var toInteger = require('../internals/to-integer');
var toLength = require('../internals/to-length');
var toObject = require('../internals/to-object');
var arraySpeciesCreate = require('../internals/array-species-create');
var createProperty = require('../internals/create-property');
var arrayMethodHasSpeciesSupport = require('../internals/array-method-has-species-support');
var arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');

var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('splice');
var USES_TO_LENGTH = arrayMethodUsesToLength('splice', { ACCESSORS: true, 0: 0, 1: 2 });

var max = Math.max;
var min = Math.min;
var MAX_SAFE_INTEGER = 0x1FFFFFFFFFFFFF;
var MAXIMUM_ALLOWED_LENGTH_EXCEEDED = 'Maximum allowed length exceeded';

// `Array.prototype.splice` method
// https://tc39.github.io/ecma262/#sec-array.prototype.splice
// with adding support of @@species
$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT || !USES_TO_LENGTH }, {
  splice: function splice(start, deleteCount /* , ...items */) {
    var O = toObject(this);
    var len = toLength(O.length);
    var actualStart = toAbsoluteIndex(start, len);
    var argumentsLength = arguments.length;
    var insertCount, actualDeleteCount, A, k, from, to;
    if (argumentsLength === 0) {
      insertCount = actualDeleteCount = 0;
    } else if (argumentsLength === 1) {
      insertCount = 0;
      actualDeleteCount = len - actualStart;
    } else {
      insertCount = argumentsLength - 2;
      actualDeleteCount = min(max(toInteger(deleteCount), 0), len - actualStart);
    }
    if (len + insertCount - actualDeleteCount > MAX_SAFE_INTEGER) {
      throw TypeError(MAXIMUM_ALLOWED_LENGTH_EXCEEDED);
    }
    A = arraySpeciesCreate(O, actualDeleteCount);
    for (k = 0; k < actualDeleteCount; k++) {
      from = actualStart + k;
      if (from in O) createProperty(A, k, O[from]);
    }
    A.length = actualDeleteCount;
    if (insertCount < actualDeleteCount) {
      for (k = actualStart; k < len - actualDeleteCount; k++) {
        from = k + actualDeleteCount;
        to = k + insertCount;
        if (from in O) O[to] = O[from];
        else delete O[to];
      }
      for (k = len; k > len - actualDeleteCount + insertCount; k--) delete O[k - 1];
    } else if (insertCount > actualDeleteCount) {
      for (k = len - actualDeleteCount; k > actualStart; k--) {
        from = k + actualDeleteCount - 1;
        to = k + insertCount - 1;
        if (from in O) O[to] = O[from];
        else delete O[to];
      }
    }
    for (k = 0; k < insertCount; k++) {
      O[k + actualStart] = arguments[k + 2];
    }
    O.length = len - actualDeleteCount + insertCount;
    return A;
  }
});

},{"../internals/array-method-has-species-support":118,"../internals/array-method-uses-to-length":120,"../internals/array-species-create":122,"../internals/create-property":133,"../internals/export":144,"../internals/to-absolute-index":215,"../internals/to-integer":218,"../internals/to-length":219,"../internals/to-object":220}],249:[function(require,module,exports){
var DESCRIPTORS = require('../internals/descriptors');
var defineProperty = require('../internals/object-define-property').f;

var FunctionPrototype = Function.prototype;
var FunctionPrototypeToString = FunctionPrototype.toString;
var nameRE = /^\s*function ([^ (]*)/;
var NAME = 'name';

// Function instances `.name` property
// https://tc39.github.io/ecma262/#sec-function-instances-name
if (DESCRIPTORS && !(NAME in FunctionPrototype)) {
  defineProperty(FunctionPrototype, NAME, {
    configurable: true,
    get: function () {
      try {
        return FunctionPrototypeToString.call(this).match(nameRE)[1];
      } catch (error) {
        return '';
      }
    }
  });
}

},{"../internals/descriptors":136,"../internals/object-define-property":180}],250:[function(require,module,exports){
'use strict';
var DESCRIPTORS = require('../internals/descriptors');
var global = require('../internals/global');
var isForced = require('../internals/is-forced');
var redefine = require('../internals/redefine');
var has = require('../internals/has');
var classof = require('../internals/classof-raw');
var inheritIfRequired = require('../internals/inherit-if-required');
var toPrimitive = require('../internals/to-primitive');
var fails = require('../internals/fails');
var create = require('../internals/object-create');
var getOwnPropertyNames = require('../internals/object-get-own-property-names').f;
var getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;
var defineProperty = require('../internals/object-define-property').f;
var trim = require('../internals/string-trim').trim;

var NUMBER = 'Number';
var NativeNumber = global[NUMBER];
var NumberPrototype = NativeNumber.prototype;

// Opera ~12 has broken Object#toString
var BROKEN_CLASSOF = classof(create(NumberPrototype)) == NUMBER;

// `ToNumber` abstract operation
// https://tc39.github.io/ecma262/#sec-tonumber
var toNumber = function (argument) {
  var it = toPrimitive(argument, false);
  var first, third, radix, maxCode, digits, length, index, code;
  if (typeof it == 'string' && it.length > 2) {
    it = trim(it);
    first = it.charCodeAt(0);
    if (first === 43 || first === 45) {
      third = it.charCodeAt(2);
      if (third === 88 || third === 120) return NaN; // Number('+0x1') should be NaN, old V8 fix
    } else if (first === 48) {
      switch (it.charCodeAt(1)) {
        case 66: case 98: radix = 2; maxCode = 49; break; // fast equal of /^0b[01]+$/i
        case 79: case 111: radix = 8; maxCode = 55; break; // fast equal of /^0o[0-7]+$/i
        default: return +it;
      }
      digits = it.slice(2);
      length = digits.length;
      for (index = 0; index < length; index++) {
        code = digits.charCodeAt(index);
        // parseInt parses a string to a first unavailable symbol
        // but ToNumber should return NaN if a string contains unavailable symbols
        if (code < 48 || code > maxCode) return NaN;
      } return parseInt(digits, radix);
    }
  } return +it;
};

// `Number` constructor
// https://tc39.github.io/ecma262/#sec-number-constructor
if (isForced(NUMBER, !NativeNumber(' 0o1') || !NativeNumber('0b1') || NativeNumber('+0x1'))) {
  var NumberWrapper = function Number(value) {
    var it = arguments.length < 1 ? 0 : value;
    var dummy = this;
    return dummy instanceof NumberWrapper
      // check on 1..constructor(foo) case
      && (BROKEN_CLASSOF ? fails(function () { NumberPrototype.valueOf.call(dummy); }) : classof(dummy) != NUMBER)
        ? inheritIfRequired(new NativeNumber(toNumber(it)), dummy, NumberWrapper) : toNumber(it);
  };
  for (var keys = DESCRIPTORS ? getOwnPropertyNames(NativeNumber) : (
    // ES3:
    'MAX_VALUE,MIN_VALUE,NaN,NEGATIVE_INFINITY,POSITIVE_INFINITY,' +
    // ES2015 (in case, if modules with ES2015 Number statics required before):
    'EPSILON,isFinite,isInteger,isNaN,isSafeInteger,MAX_SAFE_INTEGER,' +
    'MIN_SAFE_INTEGER,parseFloat,parseInt,isInteger'
  ).split(','), j = 0, key; keys.length > j; j++) {
    if (has(NativeNumber, key = keys[j]) && !has(NumberWrapper, key)) {
      defineProperty(NumberWrapper, key, getOwnPropertyDescriptor(NativeNumber, key));
    }
  }
  NumberWrapper.prototype = NumberPrototype;
  NumberPrototype.constructor = NumberWrapper;
  redefine(global, NUMBER, NumberWrapper);
}

},{"../internals/classof-raw":125,"../internals/descriptors":136,"../internals/fails":145,"../internals/global":150,"../internals/has":151,"../internals/inherit-if-required":158,"../internals/is-forced":163,"../internals/object-create":178,"../internals/object-define-property":180,"../internals/object-get-own-property-descriptor":181,"../internals/object-get-own-property-names":183,"../internals/redefine":197,"../internals/string-trim":213,"../internals/to-primitive":223}],251:[function(require,module,exports){
var $ = require('../internals/export');
var assign = require('../internals/object-assign');

// `Object.assign` method
// https://tc39.github.io/ecma262/#sec-object.assign
$({ target: 'Object', stat: true, forced: Object.assign !== assign }, {
  assign: assign
});

},{"../internals/export":144,"../internals/object-assign":177}],252:[function(require,module,exports){
var $ = require('../internals/export');
var $entries = require('../internals/object-to-array').entries;

// `Object.entries` method
// https://tc39.github.io/ecma262/#sec-object.entries
$({ target: 'Object', stat: true }, {
  entries: function entries(O) {
    return $entries(O);
  }
});

},{"../internals/export":144,"../internals/object-to-array":190}],253:[function(require,module,exports){
var $ = require('../internals/export');
var toObject = require('../internals/to-object');
var nativeKeys = require('../internals/object-keys');
var fails = require('../internals/fails');

var FAILS_ON_PRIMITIVES = fails(function () { nativeKeys(1); });

// `Object.keys` method
// https://tc39.github.io/ecma262/#sec-object.keys
$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, {
  keys: function keys(it) {
    return nativeKeys(toObject(it));
  }
});

},{"../internals/export":144,"../internals/fails":145,"../internals/object-keys":187,"../internals/to-object":220}],254:[function(require,module,exports){
var TO_STRING_TAG_SUPPORT = require('../internals/to-string-tag-support');
var redefine = require('../internals/redefine');
var toString = require('../internals/object-to-string');

// `Object.prototype.toString` method
// https://tc39.github.io/ecma262/#sec-object.prototype.tostring
if (!TO_STRING_TAG_SUPPORT) {
  redefine(Object.prototype, 'toString', toString, { unsafe: true });
}

},{"../internals/object-to-string":191,"../internals/redefine":197,"../internals/to-string-tag-support":224}],255:[function(require,module,exports){
'use strict';
var $ = require('../internals/export');
var IS_PURE = require('../internals/is-pure');
var global = require('../internals/global');
var getBuiltIn = require('../internals/get-built-in');
var NativePromise = require('../internals/native-promise-constructor');
var redefine = require('../internals/redefine');
var redefineAll = require('../internals/redefine-all');
var setToStringTag = require('../internals/set-to-string-tag');
var setSpecies = require('../internals/set-species');
var isObject = require('../internals/is-object');
var aFunction = require('../internals/a-function');
var anInstance = require('../internals/an-instance');
var inspectSource = require('../internals/inspect-source');
var iterate = require('../internals/iterate');
var checkCorrectnessOfIteration = require('../internals/check-correctness-of-iteration');
var speciesConstructor = require('../internals/species-constructor');
var task = require('../internals/task').set;
var microtask = require('../internals/microtask');
var promiseResolve = require('../internals/promise-resolve');
var hostReportErrors = require('../internals/host-report-errors');
var newPromiseCapabilityModule = require('../internals/new-promise-capability');
var perform = require('../internals/perform');
var InternalStateModule = require('../internals/internal-state');
var isForced = require('../internals/is-forced');
var wellKnownSymbol = require('../internals/well-known-symbol');
var IS_NODE = require('../internals/engine-is-node');
var V8_VERSION = require('../internals/engine-v8-version');

var SPECIES = wellKnownSymbol('species');
var PROMISE = 'Promise';
var getInternalState = InternalStateModule.get;
var setInternalState = InternalStateModule.set;
var getInternalPromiseState = InternalStateModule.getterFor(PROMISE);
var PromiseConstructor = NativePromise;
var TypeError = global.TypeError;
var document = global.document;
var process = global.process;
var $fetch = getBuiltIn('fetch');
var newPromiseCapability = newPromiseCapabilityModule.f;
var newGenericPromiseCapability = newPromiseCapability;
var DISPATCH_EVENT = !!(document && document.createEvent && global.dispatchEvent);
var NATIVE_REJECTION_EVENT = typeof PromiseRejectionEvent == 'function';
var UNHANDLED_REJECTION = 'unhandledrejection';
var REJECTION_HANDLED = 'rejectionhandled';
var PENDING = 0;
var FULFILLED = 1;
var REJECTED = 2;
var HANDLED = 1;
var UNHANDLED = 2;
var Internal, OwnPromiseCapability, PromiseWrapper, nativeThen;

var FORCED = isForced(PROMISE, function () {
  var GLOBAL_CORE_JS_PROMISE = inspectSource(PromiseConstructor) !== String(PromiseConstructor);
  if (!GLOBAL_CORE_JS_PROMISE) {
    // V8 6.6 (Node 10 and Chrome 66) have a bug with resolving custom thenables
    // https://bugs.chromium.org/p/chromium/issues/detail?id=830565
    // We can't detect it synchronously, so just check versions
    if (V8_VERSION === 66) return true;
    // Unhandled rejections tracking support, NodeJS Promise without it fails @@species test
    if (!IS_NODE && !NATIVE_REJECTION_EVENT) return true;
  }
  // We need Promise#finally in the pure version for preventing prototype pollution
  if (IS_PURE && !PromiseConstructor.prototype['finally']) return true;
  // We can't use @@species feature detection in V8 since it causes
  // deoptimization and performance degradation
  // https://github.com/zloirock/core-js/issues/679
  if (V8_VERSION >= 51 && /native code/.test(PromiseConstructor)) return false;
  // Detect correctness of subclassing with @@species support
  var promise = PromiseConstructor.resolve(1);
  var FakePromise = function (exec) {
    exec(function () { /* empty */ }, function () { /* empty */ });
  };
  var constructor = promise.constructor = {};
  constructor[SPECIES] = FakePromise;
  return !(promise.then(function () { /* empty */ }) instanceof FakePromise);
});

var INCORRECT_ITERATION = FORCED || !checkCorrectnessOfIteration(function (iterable) {
  PromiseConstructor.all(iterable)['catch'](function () { /* empty */ });
});

// helpers
var isThenable = function (it) {
  var then;
  return isObject(it) && typeof (then = it.then) == 'function' ? then : false;
};

var notify = function (state, isReject) {
  if (state.notified) return;
  state.notified = true;
  var chain = state.reactions;
  microtask(function () {
    var value = state.value;
    var ok = state.state == FULFILLED;
    var index = 0;
    // variable length - can't use forEach
    while (chain.length > index) {
      var reaction = chain[index++];
      var handler = ok ? reaction.ok : reaction.fail;
      var resolve = reaction.resolve;
      var reject = reaction.reject;
      var domain = reaction.domain;
      var result, then, exited;
      try {
        if (handler) {
          if (!ok) {
            if (state.rejection === UNHANDLED) onHandleUnhandled(state);
            state.rejection = HANDLED;
          }
          if (handler === true) result = value;
          else {
            if (domain) domain.enter();
            result = handler(value); // can throw
            if (domain) {
              domain.exit();
              exited = true;
            }
          }
          if (result === reaction.promise) {
            reject(TypeError('Promise-chain cycle'));
          } else if (then = isThenable(result)) {
            then.call(result, resolve, reject);
          } else resolve(result);
        } else reject(value);
      } catch (error) {
        if (domain && !exited) domain.exit();
        reject(error);
      }
    }
    state.reactions = [];
    state.notified = false;
    if (isReject && !state.rejection) onUnhandled(state);
  });
};

var dispatchEvent = function (name, promise, reason) {
  var event, handler;
  if (DISPATCH_EVENT) {
    event = document.createEvent('Event');
    event.promise = promise;
    event.reason = reason;
    event.initEvent(name, false, true);
    global.dispatchEvent(event);
  } else event = { promise: promise, reason: reason };
  if (!NATIVE_REJECTION_EVENT && (handler = global['on' + name])) handler(event);
  else if (name === UNHANDLED_REJECTION) hostReportErrors('Unhandled promise rejection', reason);
};

var onUnhandled = function (state) {
  task.call(global, function () {
    var promise = state.facade;
    var value = state.value;
    var IS_UNHANDLED = isUnhandled(state);
    var result;
    if (IS_UNHANDLED) {
      result = perform(function () {
        if (IS_NODE) {
          process.emit('unhandledRejection', value, promise);
        } else dispatchEvent(UNHANDLED_REJECTION, promise, value);
      });
      // Browsers should not trigger `rejectionHandled` event if it was handled here, NodeJS - should
      state.rejection = IS_NODE || isUnhandled(state) ? UNHANDLED : HANDLED;
      if (result.error) throw result.value;
    }
  });
};

var isUnhandled = function (state) {
  return state.rejection !== HANDLED && !state.parent;
};

var onHandleUnhandled = function (state) {
  task.call(global, function () {
    var promise = state.facade;
    if (IS_NODE) {
      process.emit('rejectionHandled', promise);
    } else dispatchEvent(REJECTION_HANDLED, promise, state.value);
  });
};

var bind = function (fn, state, unwrap) {
  return function (value) {
    fn(state, value, unwrap);
  };
};

var internalReject = function (state, value, unwrap) {
  if (state.done) return;
  state.done = true;
  if (unwrap) state = unwrap;
  state.value = value;
  state.state = REJECTED;
  notify(state, true);
};

var internalResolve = function (state, value, unwrap) {
  if (state.done) return;
  state.done = true;
  if (unwrap) state = unwrap;
  try {
    if (state.facade === value) throw TypeError("Promise can't be resolved itself");
    var then = isThenable(value);
    if (then) {
      microtask(function () {
        var wrapper = { done: false };
        try {
          then.call(value,
            bind(internalResolve, wrapper, state),
            bind(internalReject, wrapper, state)
          );
        } catch (error) {
          internalReject(wrapper, error, state);
        }
      });
    } else {
      state.value = value;
      state.state = FULFILLED;
      notify(state, false);
    }
  } catch (error) {
    internalReject({ done: false }, error, state);
  }
};

// constructor polyfill
if (FORCED) {
  // 25.4.3.1 Promise(executor)
  PromiseConstructor = function Promise(executor) {
    anInstance(this, PromiseConstructor, PROMISE);
    aFunction(executor);
    Internal.call(this);
    var state = getInternalState(this);
    try {
      executor(bind(internalResolve, state), bind(internalReject, state));
    } catch (error) {
      internalReject(state, error);
    }
  };
  // eslint-disable-next-line no-unused-vars
  Internal = function Promise(executor) {
    setInternalState(this, {
      type: PROMISE,
      done: false,
      notified: false,
      parent: false,
      reactions: [],
      rejection: false,
      state: PENDING,
      value: undefined
    });
  };
  Internal.prototype = redefineAll(PromiseConstructor.prototype, {
    // `Promise.prototype.then` method
    // https://tc39.github.io/ecma262/#sec-promise.prototype.then
    then: function then(onFulfilled, onRejected) {
      var state = getInternalPromiseState(this);
      var reaction = newPromiseCapability(speciesConstructor(this, PromiseConstructor));
      reaction.ok = typeof onFulfilled == 'function' ? onFulfilled : true;
      reaction.fail = typeof onRejected == 'function' && onRejected;
      reaction.domain = IS_NODE ? process.domain : undefined;
      state.parent = true;
      state.reactions.push(reaction);
      if (state.state != PENDING) notify(state, false);
      return reaction.promise;
    },
    // `Promise.prototype.catch` method
    // https://tc39.github.io/ecma262/#sec-promise.prototype.catch
    'catch': function (onRejected) {
      return this.then(undefined, onRejected);
    }
  });
  OwnPromiseCapability = function () {
    var promise = new Internal();
    var state = getInternalState(promise);
    this.promise = promise;
    this.resolve = bind(internalResolve, state);
    this.reject = bind(internalReject, state);
  };
  newPromiseCapabilityModule.f = newPromiseCapability = function (C) {
    return C === PromiseConstructor || C === PromiseWrapper
      ? new OwnPromiseCapability(C)
      : newGenericPromiseCapability(C);
  };

  if (!IS_PURE && typeof NativePromise == 'function') {
    nativeThen = NativePromise.prototype.then;

    // wrap native Promise#then for native async functions
    redefine(NativePromise.prototype, 'then', function then(onFulfilled, onRejected) {
      var that = this;
      return new PromiseConstructor(function (resolve, reject) {
        nativeThen.call(that, resolve, reject);
      }).then(onFulfilled, onRejected);
    // https://github.com/zloirock/core-js/issues/640
    }, { unsafe: true });

    // wrap fetch result
    if (typeof $fetch == 'function') $({ global: true, enumerable: true, forced: true }, {
      // eslint-disable-next-line no-unused-vars
      fetch: function fetch(input /* , init */) {
        return promiseResolve(PromiseConstructor, $fetch.apply(global, arguments));
      }
    });
  }
}

$({ global: true, wrap: true, forced: FORCED }, {
  Promise: PromiseConstructor
});

setToStringTag(PromiseConstructor, PROMISE, false, true);
setSpecies(PROMISE);

PromiseWrapper = getBuiltIn(PROMISE);

// statics
$({ target: PROMISE, stat: true, forced: FORCED }, {
  // `Promise.reject` method
  // https://tc39.github.io/ecma262/#sec-promise.reject
  reject: function reject(r) {
    var capability = newPromiseCapability(this);
    capability.reject.call(undefined, r);
    return capability.promise;
  }
});

$({ target: PROMISE, stat: true, forced: IS_PURE || FORCED }, {
  // `Promise.resolve` method
  // https://tc39.github.io/ecma262/#sec-promise.resolve
  resolve: function resolve(x) {
    return promiseResolve(IS_PURE && this === PromiseWrapper ? PromiseConstructor : this, x);
  }
});

$({ target: PROMISE, stat: true, forced: INCORRECT_ITERATION }, {
  // `Promise.all` method
  // https://tc39.github.io/ecma262/#sec-promise.all
  all: function all(iterable) {
    var C = this;
    var capability = newPromiseCapability(C);
    var resolve = capability.resolve;
    var reject = capability.reject;
    var result = perform(function () {
      var $promiseResolve = aFunction(C.resolve);
      var values = [];
      var counter = 0;
      var remaining = 1;
      iterate(iterable, function (promise) {
        var index = counter++;
        var alreadyCalled = false;
        values.push(undefined);
        remaining++;
        $promiseResolve.call(C, promise).then(function (value) {
          if (alreadyCalled) return;
          alreadyCalled = true;
          values[index] = value;
          --remaining || resolve(values);
        }, reject);
      });
      --remaining || resolve(values);
    });
    if (result.error) reject(result.value);
    return capability.promise;
  },
  // `Promise.race` method
  // https://tc39.github.io/ecma262/#sec-promise.race
  race: function race(iterable) {
    var C = this;
    var capability = newPromiseCapability(C);
    var reject = capability.reject;
    var result = perform(function () {
      var $promiseResolve = aFunction(C.resolve);
      iterate(iterable, function (promise) {
        $promiseResolve.call(C, promise).then(capability.resolve, reject);
      });
    });
    if (result.error) reject(result.value);
    return capability.promise;
  }
});

},{"../internals/a-function":102,"../internals/an-instance":106,"../internals/check-correctness-of-iteration":124,"../internals/engine-is-node":140,"../internals/engine-v8-version":142,"../internals/export":144,"../internals/get-built-in":148,"../internals/global":150,"../internals/host-report-errors":153,"../internals/inspect-source":159,"../internals/internal-state":160,"../internals/is-forced":163,"../internals/is-object":164,"../internals/is-pure":165,"../internals/iterate":167,"../internals/microtask":171,"../internals/native-promise-constructor":172,"../internals/new-promise-capability":175,"../internals/perform":194,"../internals/promise-resolve":195,"../internals/redefine":197,"../internals/redefine-all":196,"../internals/set-species":205,"../internals/set-to-string-tag":206,"../internals/species-constructor":210,"../internals/task":214,"../internals/well-known-symbol":231}],256:[function(require,module,exports){
'use strict';
var $ = require('../internals/export');
var exec = require('../internals/regexp-exec');

$({ target: 'RegExp', proto: true, forced: /./.exec !== exec }, {
  exec: exec
});

},{"../internals/export":144,"../internals/regexp-exec":199}],257:[function(require,module,exports){
'use strict';
var redefine = require('../internals/redefine');
var anObject = require('../internals/an-object');
var fails = require('../internals/fails');
var flags = require('../internals/regexp-flags');

var TO_STRING = 'toString';
var RegExpPrototype = RegExp.prototype;
var nativeToString = RegExpPrototype[TO_STRING];

var NOT_GENERIC = fails(function () { return nativeToString.call({ source: 'a', flags: 'b' }) != '/a/b'; });
// FF44- RegExp#toString has a wrong name
var INCORRECT_NAME = nativeToString.name != TO_STRING;

// `RegExp.prototype.toString` method
// https://tc39.github.io/ecma262/#sec-regexp.prototype.tostring
if (NOT_GENERIC || INCORRECT_NAME) {
  redefine(RegExp.prototype, TO_STRING, function toString() {
    var R = anObject(this);
    var p = String(R.source);
    var rf = R.flags;
    var f = String(rf === undefined && R instanceof RegExp && !('flags' in RegExpPrototype) ? flags.call(R) : rf);
    return '/' + p + '/' + f;
  }, { unsafe: true });
}

},{"../internals/an-object":107,"../internals/fails":145,"../internals/redefine":197,"../internals/regexp-flags":200}],258:[function(require,module,exports){
'use strict';
var $ = require('../internals/export');
var notARegExp = require('../internals/not-a-regexp');
var requireObjectCoercible = require('../internals/require-object-coercible');
var correctIsRegExpLogic = require('../internals/correct-is-regexp-logic');

// `String.prototype.includes` method
// https://tc39.github.io/ecma262/#sec-string.prototype.includes
$({ target: 'String', proto: true, forced: !correctIsRegExpLogic('includes') }, {
  includes: function includes(searchString /* , position = 0 */) {
    return !!~String(requireObjectCoercible(this))
      .indexOf(notARegExp(searchString), arguments.length > 1 ? arguments[1] : undefined);
  }
});

},{"../internals/correct-is-regexp-logic":128,"../internals/export":144,"../internals/not-a-regexp":176,"../internals/require-object-coercible":202}],259:[function(require,module,exports){
'use strict';
var charAt = require('../internals/string-multibyte').charAt;
var InternalStateModule = require('../internals/internal-state');
var defineIterator = require('../internals/define-iterator');

var STRING_ITERATOR = 'String Iterator';
var setInternalState = InternalStateModule.set;
var getInternalState = InternalStateModule.getterFor(STRING_ITERATOR);

// `String.prototype[@@iterator]` method
// https://tc39.github.io/ecma262/#sec-string.prototype-@@iterator
defineIterator(String, 'String', function (iterated) {
  setInternalState(this, {
    type: STRING_ITERATOR,
    string: String(iterated),
    index: 0
  });
// `%StringIteratorPrototype%.next` method
// https://tc39.github.io/ecma262/#sec-%stringiteratorprototype%.next
}, function next() {
  var state = getInternalState(this);
  var string = state.string;
  var index = state.index;
  var point;
  if (index >= string.length) return { value: undefined, done: true };
  point = charAt(string, index);
  state.index += point.length;
  return { value: point, done: false };
});

},{"../internals/define-iterator":134,"../internals/internal-state":160,"../internals/string-multibyte":211}],260:[function(require,module,exports){
'use strict';
var fixRegExpWellKnownSymbolLogic = require('../internals/fix-regexp-well-known-symbol-logic');
var anObject = require('../internals/an-object');
var toLength = require('../internals/to-length');
var requireObjectCoercible = require('../internals/require-object-coercible');
var advanceStringIndex = require('../internals/advance-string-index');
var regExpExec = require('../internals/regexp-exec-abstract');

// @@match logic
fixRegExpWellKnownSymbolLogic('match', 1, function (MATCH, nativeMatch, maybeCallNative) {
  return [
    // `String.prototype.match` method
    // https://tc39.github.io/ecma262/#sec-string.prototype.match
    function match(regexp) {
      var O = requireObjectCoercible(this);
      var matcher = regexp == undefined ? undefined : regexp[MATCH];
      return matcher !== undefined ? matcher.call(regexp, O) : new RegExp(regexp)[MATCH](String(O));
    },
    // `RegExp.prototype[@@match]` method
    // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@match
    function (regexp) {
      var res = maybeCallNative(nativeMatch, regexp, this);
      if (res.done) return res.value;

      var rx = anObject(regexp);
      var S = String(this);

      if (!rx.global) return regExpExec(rx, S);

      var fullUnicode = rx.unicode;
      rx.lastIndex = 0;
      var A = [];
      var n = 0;
      var result;
      while ((result = regExpExec(rx, S)) !== null) {
        var matchStr = String(result[0]);
        A[n] = matchStr;
        if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);
        n++;
      }
      return n === 0 ? null : A;
    }
  ];
});

},{"../internals/advance-string-index":105,"../internals/an-object":107,"../internals/fix-regexp-well-known-symbol-logic":146,"../internals/regexp-exec-abstract":198,"../internals/require-object-coercible":202,"../internals/to-length":219}],261:[function(require,module,exports){
'use strict';
var fixRegExpWellKnownSymbolLogic = require('../internals/fix-regexp-well-known-symbol-logic');
var anObject = require('../internals/an-object');
var toObject = require('../internals/to-object');
var toLength = require('../internals/to-length');
var toInteger = require('../internals/to-integer');
var requireObjectCoercible = require('../internals/require-object-coercible');
var advanceStringIndex = require('../internals/advance-string-index');
var regExpExec = require('../internals/regexp-exec-abstract');

var max = Math.max;
var min = Math.min;
var floor = Math.floor;
var SUBSTITUTION_SYMBOLS = /\$([$&'`]|\d\d?|<[^>]*>)/g;
var SUBSTITUTION_SYMBOLS_NO_NAMED = /\$([$&'`]|\d\d?)/g;

var maybeToString = function (it) {
  return it === undefined ? it : String(it);
};

// @@replace logic
fixRegExpWellKnownSymbolLogic('replace', 2, function (REPLACE, nativeReplace, maybeCallNative, reason) {
  var REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE = reason.REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE;
  var REPLACE_KEEPS_$0 = reason.REPLACE_KEEPS_$0;
  var UNSAFE_SUBSTITUTE = REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE ? '$' : '$0';

  return [
    // `String.prototype.replace` method
    // https://tc39.github.io/ecma262/#sec-string.prototype.replace
    function replace(searchValue, replaceValue) {
      var O = requireObjectCoercible(this);
      var replacer = searchValue == undefined ? undefined : searchValue[REPLACE];
      return replacer !== undefined
        ? replacer.call(searchValue, O, replaceValue)
        : nativeReplace.call(String(O), searchValue, replaceValue);
    },
    // `RegExp.prototype[@@replace]` method
    // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@replace
    function (regexp, replaceValue) {
      if (
        (!REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE && REPLACE_KEEPS_$0) ||
        (typeof replaceValue === 'string' && replaceValue.indexOf(UNSAFE_SUBSTITUTE) === -1)
      ) {
        var res = maybeCallNative(nativeReplace, regexp, this, replaceValue);
        if (res.done) return res.value;
      }

      var rx = anObject(regexp);
      var S = String(this);

      var functionalReplace = typeof replaceValue === 'function';
      if (!functionalReplace) replaceValue = String(replaceValue);

      var global = rx.global;
      if (global) {
        var fullUnicode = rx.unicode;
        rx.lastIndex = 0;
      }
      var results = [];
      while (true) {
        var result = regExpExec(rx, S);
        if (result === null) break;

        results.push(result);
        if (!global) break;

        var matchStr = String(result[0]);
        if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);
      }

      var accumulatedResult = '';
      var nextSourcePosition = 0;
      for (var i = 0; i < results.length; i++) {
        result = results[i];

        var matched = String(result[0]);
        var position = max(min(toInteger(result.index), S.length), 0);
        var captures = [];
        // NOTE: This is equivalent to
        //   captures = result.slice(1).map(maybeToString)
        // but for some reason `nativeSlice.call(result, 1, result.length)` (called in
        // the slice polyfill when slicing native arrays) "doesn't work" in safari 9 and
        // causes a crash (https://pastebin.com/N21QzeQA) when trying to debug it.
        for (var j = 1; j < result.length; j++) captures.push(maybeToString(result[j]));
        var namedCaptures = result.groups;
        if (functionalReplace) {
          var replacerArgs = [matched].concat(captures, position, S);
          if (namedCaptures !== undefined) replacerArgs.push(namedCaptures);
          var replacement = String(replaceValue.apply(undefined, replacerArgs));
        } else {
          replacement = getSubstitution(matched, S, position, captures, namedCaptures, replaceValue);
        }
        if (position >= nextSourcePosition) {
          accumulatedResult += S.slice(nextSourcePosition, position) + replacement;
          nextSourcePosition = position + matched.length;
        }
      }
      return accumulatedResult + S.slice(nextSourcePosition);
    }
  ];

  // https://tc39.github.io/ecma262/#sec-getsubstitution
  function getSubstitution(matched, str, position, captures, namedCaptures, replacement) {
    var tailPos = position + matched.length;
    var m = captures.length;
    var symbols = SUBSTITUTION_SYMBOLS_NO_NAMED;
    if (namedCaptures !== undefined) {
      namedCaptures = toObject(namedCaptures);
      symbols = SUBSTITUTION_SYMBOLS;
    }
    return nativeReplace.call(replacement, symbols, function (match, ch) {
      var capture;
      switch (ch.charAt(0)) {
        case '$': return '$';
        case '&': return matched;
        case '`': return str.slice(0, position);
        case "'": return str.slice(tailPos);
        case '<':
          capture = namedCaptures[ch.slice(1, -1)];
          break;
        default: // \d\d?
          var n = +ch;
          if (n === 0) return match;
          if (n > m) {
            var f = floor(n / 10);
            if (f === 0) return match;
            if (f <= m) return captures[f - 1] === undefined ? ch.charAt(1) : captures[f - 1] + ch.charAt(1);
            return match;
          }
          capture = captures[n - 1];
      }
      return capture === undefined ? '' : capture;
    });
  }
});

},{"../internals/advance-string-index":105,"../internals/an-object":107,"../internals/fix-regexp-well-known-symbol-logic":146,"../internals/regexp-exec-abstract":198,"../internals/require-object-coercible":202,"../internals/to-integer":218,"../internals/to-length":219,"../internals/to-object":220}],262:[function(require,module,exports){
'use strict';
var fixRegExpWellKnownSymbolLogic = require('../internals/fix-regexp-well-known-symbol-logic');
var anObject = require('../internals/an-object');
var requireObjectCoercible = require('../internals/require-object-coercible');
var sameValue = require('../internals/same-value');
var regExpExec = require('../internals/regexp-exec-abstract');

// @@search logic
fixRegExpWellKnownSymbolLogic('search', 1, function (SEARCH, nativeSearch, maybeCallNative) {
  return [
    // `String.prototype.search` method
    // https://tc39.github.io/ecma262/#sec-string.prototype.search
    function search(regexp) {
      var O = requireObjectCoercible(this);
      var searcher = regexp == undefined ? undefined : regexp[SEARCH];
      return searcher !== undefined ? searcher.call(regexp, O) : new RegExp(regexp)[SEARCH](String(O));
    },
    // `RegExp.prototype[@@search]` method
    // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@search
    function (regexp) {
      var res = maybeCallNative(nativeSearch, regexp, this);
      if (res.done) return res.value;

      var rx = anObject(regexp);
      var S = String(this);

      var previousLastIndex = rx.lastIndex;
      if (!sameValue(previousLastIndex, 0)) rx.lastIndex = 0;
      var result = regExpExec(rx, S);
      if (!sameValue(rx.lastIndex, previousLastIndex)) rx.lastIndex = previousLastIndex;
      return result === null ? -1 : result.index;
    }
  ];
});

},{"../internals/an-object":107,"../internals/fix-regexp-well-known-symbol-logic":146,"../internals/regexp-exec-abstract":198,"../internals/require-object-coercible":202,"../internals/same-value":203}],263:[function(require,module,exports){
'use strict';
var fixRegExpWellKnownSymbolLogic = require('../internals/fix-regexp-well-known-symbol-logic');
var isRegExp = require('../internals/is-regexp');
var anObject = require('../internals/an-object');
var requireObjectCoercible = require('../internals/require-object-coercible');
var speciesConstructor = require('../internals/species-constructor');
var advanceStringIndex = require('../internals/advance-string-index');
var toLength = require('../internals/to-length');
var callRegExpExec = require('../internals/regexp-exec-abstract');
var regexpExec = require('../internals/regexp-exec');
var fails = require('../internals/fails');

var arrayPush = [].push;
var min = Math.min;
var MAX_UINT32 = 0xFFFFFFFF;

// babel-minify transpiles RegExp('x', 'y') -> /x/y and it causes SyntaxError
var SUPPORTS_Y = !fails(function () { return !RegExp(MAX_UINT32, 'y'); });

// @@split logic
fixRegExpWellKnownSymbolLogic('split', 2, function (SPLIT, nativeSplit, maybeCallNative) {
  var internalSplit;
  if (
    'abbc'.split(/(b)*/)[1] == 'c' ||
    'test'.split(/(?:)/, -1).length != 4 ||
    'ab'.split(/(?:ab)*/).length != 2 ||
    '.'.split(/(.?)(.?)/).length != 4 ||
    '.'.split(/()()/).length > 1 ||
    ''.split(/.?/).length
  ) {
    // based on es5-shim implementation, need to rework it
    internalSplit = function (separator, limit) {
      var string = String(requireObjectCoercible(this));
      var lim = limit === undefined ? MAX_UINT32 : limit >>> 0;
      if (lim === 0) return [];
      if (separator === undefined) return [string];
      // If `separator` is not a regex, use native split
      if (!isRegExp(separator)) {
        return nativeSplit.call(string, separator, lim);
      }
      var output = [];
      var flags = (separator.ignoreCase ? 'i' : '') +
                  (separator.multiline ? 'm' : '') +
                  (separator.unicode ? 'u' : '') +
                  (separator.sticky ? 'y' : '');
      var lastLastIndex = 0;
      // Make `global` and avoid `lastIndex` issues by working with a copy
      var separatorCopy = new RegExp(separator.source, flags + 'g');
      var match, lastIndex, lastLength;
      while (match = regexpExec.call(separatorCopy, string)) {
        lastIndex = separatorCopy.lastIndex;
        if (lastIndex > lastLastIndex) {
          output.push(string.slice(lastLastIndex, match.index));
          if (match.length > 1 && match.index < string.length) arrayPush.apply(output, match.slice(1));
          lastLength = match[0].length;
          lastLastIndex = lastIndex;
          if (output.length >= lim) break;
        }
        if (separatorCopy.lastIndex === match.index) separatorCopy.lastIndex++; // Avoid an infinite loop
      }
      if (lastLastIndex === string.length) {
        if (lastLength || !separatorCopy.test('')) output.push('');
      } else output.push(string.slice(lastLastIndex));
      return output.length > lim ? output.slice(0, lim) : output;
    };
  // Chakra, V8
  } else if ('0'.split(undefined, 0).length) {
    internalSplit = function (separator, limit) {
      return separator === undefined && limit === 0 ? [] : nativeSplit.call(this, separator, limit);
    };
  } else internalSplit = nativeSplit;

  return [
    // `String.prototype.split` method
    // https://tc39.github.io/ecma262/#sec-string.prototype.split
    function split(separator, limit) {
      var O = requireObjectCoercible(this);
      var splitter = separator == undefined ? undefined : separator[SPLIT];
      return splitter !== undefined
        ? splitter.call(separator, O, limit)
        : internalSplit.call(String(O), separator, limit);
    },
    // `RegExp.prototype[@@split]` method
    // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@split
    //
    // NOTE: This cannot be properly polyfilled in engines that don't support
    // the 'y' flag.
    function (regexp, limit) {
      var res = maybeCallNative(internalSplit, regexp, this, limit, internalSplit !== nativeSplit);
      if (res.done) return res.value;

      var rx = anObject(regexp);
      var S = String(this);
      var C = speciesConstructor(rx, RegExp);

      var unicodeMatching = rx.unicode;
      var flags = (rx.ignoreCase ? 'i' : '') +
                  (rx.multiline ? 'm' : '') +
                  (rx.unicode ? 'u' : '') +
                  (SUPPORTS_Y ? 'y' : 'g');

      // ^(? + rx + ) is needed, in combination with some S slicing, to
      // simulate the 'y' flag.
      var splitter = new C(SUPPORTS_Y ? rx : '^(?:' + rx.source + ')', flags);
      var lim = limit === undefined ? MAX_UINT32 : limit >>> 0;
      if (lim === 0) return [];
      if (S.length === 0) return callRegExpExec(splitter, S) === null ? [S] : [];
      var p = 0;
      var q = 0;
      var A = [];
      while (q < S.length) {
        splitter.lastIndex = SUPPORTS_Y ? q : 0;
        var z = callRegExpExec(splitter, SUPPORTS_Y ? S : S.slice(q));
        var e;
        if (
          z === null ||
          (e = min(toLength(splitter.lastIndex + (SUPPORTS_Y ? 0 : q)), S.length)) === p
        ) {
          q = advanceStringIndex(S, q, unicodeMatching);
        } else {
          A.push(S.slice(p, q));
          if (A.length === lim) return A;
          for (var i = 1; i <= z.length - 1; i++) {
            A.push(z[i]);
            if (A.length === lim) return A;
          }
          q = p = e;
        }
      }
      A.push(S.slice(p));
      return A;
    }
  ];
}, !SUPPORTS_Y);

},{"../internals/advance-string-index":105,"../internals/an-object":107,"../internals/fails":145,"../internals/fix-regexp-well-known-symbol-logic":146,"../internals/is-regexp":166,"../internals/regexp-exec":199,"../internals/regexp-exec-abstract":198,"../internals/require-object-coercible":202,"../internals/species-constructor":210,"../internals/to-length":219}],264:[function(require,module,exports){
'use strict';
var $ = require('../internals/export');
var $trim = require('../internals/string-trim').trim;
var forcedStringTrimMethod = require('../internals/string-trim-forced');

// `String.prototype.trim` method
// https://tc39.github.io/ecma262/#sec-string.prototype.trim
$({ target: 'String', proto: true, forced: forcedStringTrimMethod('trim') }, {
  trim: function trim() {
    return $trim(this);
  }
});

},{"../internals/export":144,"../internals/string-trim":213,"../internals/string-trim-forced":212}],265:[function(require,module,exports){
// `Symbol.prototype.description` getter
// https://tc39.github.io/ecma262/#sec-symbol.prototype.description
'use strict';
var $ = require('../internals/export');
var DESCRIPTORS = require('../internals/descriptors');
var global = require('../internals/global');
var has = require('../internals/has');
var isObject = require('../internals/is-object');
var defineProperty = require('../internals/object-define-property').f;
var copyConstructorProperties = require('../internals/copy-constructor-properties');

var NativeSymbol = global.Symbol;

if (DESCRIPTORS && typeof NativeSymbol == 'function' && (!('description' in NativeSymbol.prototype) ||
  // Safari 12 bug
  NativeSymbol().description !== undefined
)) {
  var EmptyStringDescriptionStore = {};
  // wrap Symbol constructor for correct work with undefined description
  var SymbolWrapper = function Symbol() {
    var description = arguments.length < 1 || arguments[0] === undefined ? undefined : String(arguments[0]);
    var result = this instanceof SymbolWrapper
      ? new NativeSymbol(description)
      // in Edge 13, String(Symbol(undefined)) === 'Symbol(undefined)'
      : description === undefined ? NativeSymbol() : NativeSymbol(description);
    if (description === '') EmptyStringDescriptionStore[result] = true;
    return result;
  };
  copyConstructorProperties(SymbolWrapper, NativeSymbol);
  var symbolPrototype = SymbolWrapper.prototype = NativeSymbol.prototype;
  symbolPrototype.constructor = SymbolWrapper;

  var symbolToString = symbolPrototype.toString;
  var native = String(NativeSymbol('test')) == 'Symbol(test)';
  var regexp = /^Symbol\((.*)\)[^)]+$/;
  defineProperty(symbolPrototype, 'description', {
    configurable: true,
    get: function description() {
      var symbol = isObject(this) ? this.valueOf() : this;
      var string = symbolToString.call(symbol);
      if (has(EmptyStringDescriptionStore, symbol)) return '';
      var desc = native ? string.slice(7, -1) : string.replace(regexp, '$1');
      return desc === '' ? undefined : desc;
    }
  });

  $({ global: true, forced: true }, {
    Symbol: SymbolWrapper
  });
}

},{"../internals/copy-constructor-properties":127,"../internals/descriptors":136,"../internals/export":144,"../internals/global":150,"../internals/has":151,"../internals/is-object":164,"../internals/object-define-property":180}],266:[function(require,module,exports){
'use strict';
var $ = require('../internals/export');
var global = require('../internals/global');
var getBuiltIn = require('../internals/get-built-in');
var IS_PURE = require('../internals/is-pure');
var DESCRIPTORS = require('../internals/descriptors');
var NATIVE_SYMBOL = require('../internals/native-symbol');
var USE_SYMBOL_AS_UID = require('../internals/use-symbol-as-uid');
var fails = require('../internals/fails');
var has = require('../internals/has');
var isArray = require('../internals/is-array');
var isObject = require('../internals/is-object');
var anObject = require('../internals/an-object');
var toObject = require('../internals/to-object');
var toIndexedObject = require('../internals/to-indexed-object');
var toPrimitive = require('../internals/to-primitive');
var createPropertyDescriptor = require('../internals/create-property-descriptor');
var nativeObjectCreate = require('../internals/object-create');
var objectKeys = require('../internals/object-keys');
var getOwnPropertyNamesModule = require('../internals/object-get-own-property-names');
var getOwnPropertyNamesExternal = require('../internals/object-get-own-property-names-external');
var getOwnPropertySymbolsModule = require('../internals/object-get-own-property-symbols');
var getOwnPropertyDescriptorModule = require('../internals/object-get-own-property-descriptor');
var definePropertyModule = require('../internals/object-define-property');
var propertyIsEnumerableModule = require('../internals/object-property-is-enumerable');
var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');
var redefine = require('../internals/redefine');
var shared = require('../internals/shared');
var sharedKey = require('../internals/shared-key');
var hiddenKeys = require('../internals/hidden-keys');
var uid = require('../internals/uid');
var wellKnownSymbol = require('../internals/well-known-symbol');
var wrappedWellKnownSymbolModule = require('../internals/well-known-symbol-wrapped');
var defineWellKnownSymbol = require('../internals/define-well-known-symbol');
var setToStringTag = require('../internals/set-to-string-tag');
var InternalStateModule = require('../internals/internal-state');
var $forEach = require('../internals/array-iteration').forEach;

var HIDDEN = sharedKey('hidden');
var SYMBOL = 'Symbol';
var PROTOTYPE = 'prototype';
var TO_PRIMITIVE = wellKnownSymbol('toPrimitive');
var setInternalState = InternalStateModule.set;
var getInternalState = InternalStateModule.getterFor(SYMBOL);
var ObjectPrototype = Object[PROTOTYPE];
var $Symbol = global.Symbol;
var $stringify = getBuiltIn('JSON', 'stringify');
var nativeGetOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;
var nativeDefineProperty = definePropertyModule.f;
var nativeGetOwnPropertyNames = getOwnPropertyNamesExternal.f;
var nativePropertyIsEnumerable = propertyIsEnumerableModule.f;
var AllSymbols = shared('symbols');
var ObjectPrototypeSymbols = shared('op-symbols');
var StringToSymbolRegistry = shared('string-to-symbol-registry');
var SymbolToStringRegistry = shared('symbol-to-string-registry');
var WellKnownSymbolsStore = shared('wks');
var QObject = global.QObject;
// Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173
var USE_SETTER = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;

// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687
var setSymbolDescriptor = DESCRIPTORS && fails(function () {
  return nativeObjectCreate(nativeDefineProperty({}, 'a', {
    get: function () { return nativeDefineProperty(this, 'a', { value: 7 }).a; }
  })).a != 7;
}) ? function (O, P, Attributes) {
  var ObjectPrototypeDescriptor = nativeGetOwnPropertyDescriptor(ObjectPrototype, P);
  if (ObjectPrototypeDescriptor) delete ObjectPrototype[P];
  nativeDefineProperty(O, P, Attributes);
  if (ObjectPrototypeDescriptor && O !== ObjectPrototype) {
    nativeDefineProperty(ObjectPrototype, P, ObjectPrototypeDescriptor);
  }
} : nativeDefineProperty;

var wrap = function (tag, description) {
  var symbol = AllSymbols[tag] = nativeObjectCreate($Symbol[PROTOTYPE]);
  setInternalState(symbol, {
    type: SYMBOL,
    tag: tag,
    description: description
  });
  if (!DESCRIPTORS) symbol.description = description;
  return symbol;
};

var isSymbol = USE_SYMBOL_AS_UID ? function (it) {
  return typeof it == 'symbol';
} : function (it) {
  return Object(it) instanceof $Symbol;
};

var $defineProperty = function defineProperty(O, P, Attributes) {
  if (O === ObjectPrototype) $defineProperty(ObjectPrototypeSymbols, P, Attributes);
  anObject(O);
  var key = toPrimitive(P, true);
  anObject(Attributes);
  if (has(AllSymbols, key)) {
    if (!Attributes.enumerable) {
      if (!has(O, HIDDEN)) nativeDefineProperty(O, HIDDEN, createPropertyDescriptor(1, {}));
      O[HIDDEN][key] = true;
    } else {
      if (has(O, HIDDEN) && O[HIDDEN][key]) O[HIDDEN][key] = false;
      Attributes = nativeObjectCreate(Attributes, { enumerable: createPropertyDescriptor(0, false) });
    } return setSymbolDescriptor(O, key, Attributes);
  } return nativeDefineProperty(O, key, Attributes);
};

var $defineProperties = function defineProperties(O, Properties) {
  anObject(O);
  var properties = toIndexedObject(Properties);
  var keys = objectKeys(properties).concat($getOwnPropertySymbols(properties));
  $forEach(keys, function (key) {
    if (!DESCRIPTORS || $propertyIsEnumerable.call(properties, key)) $defineProperty(O, key, properties[key]);
  });
  return O;
};

var $create = function create(O, Properties) {
  return Properties === undefined ? nativeObjectCreate(O) : $defineProperties(nativeObjectCreate(O), Properties);
};

var $propertyIsEnumerable = function propertyIsEnumerable(V) {
  var P = toPrimitive(V, true);
  var enumerable = nativePropertyIsEnumerable.call(this, P);
  if (this === ObjectPrototype && has(AllSymbols, P) && !has(ObjectPrototypeSymbols, P)) return false;
  return enumerable || !has(this, P) || !has(AllSymbols, P) || has(this, HIDDEN) && this[HIDDEN][P] ? enumerable : true;
};

var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(O, P) {
  var it = toIndexedObject(O);
  var key = toPrimitive(P, true);
  if (it === ObjectPrototype && has(AllSymbols, key) && !has(ObjectPrototypeSymbols, key)) return;
  var descriptor = nativeGetOwnPropertyDescriptor(it, key);
  if (descriptor && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key])) {
    descriptor.enumerable = true;
  }
  return descriptor;
};

var $getOwnPropertyNames = function getOwnPropertyNames(O) {
  var names = nativeGetOwnPropertyNames(toIndexedObject(O));
  var result = [];
  $forEach(names, function (key) {
    if (!has(AllSymbols, key) && !has(hiddenKeys, key)) result.push(key);
  });
  return result;
};

var $getOwnPropertySymbols = function getOwnPropertySymbols(O) {
  var IS_OBJECT_PROTOTYPE = O === ObjectPrototype;
  var names = nativeGetOwnPropertyNames(IS_OBJECT_PROTOTYPE ? ObjectPrototypeSymbols : toIndexedObject(O));
  var result = [];
  $forEach(names, function (key) {
    if (has(AllSymbols, key) && (!IS_OBJECT_PROTOTYPE || has(ObjectPrototype, key))) {
      result.push(AllSymbols[key]);
    }
  });
  return result;
};

// `Symbol` constructor
// https://tc39.github.io/ecma262/#sec-symbol-constructor
if (!NATIVE_SYMBOL) {
  $Symbol = function Symbol() {
    if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor');
    var description = !arguments.length || arguments[0] === undefined ? undefined : String(arguments[0]);
    var tag = uid(description);
    var setter = function (value) {
      if (this === ObjectPrototype) setter.call(ObjectPrototypeSymbols, value);
      if (has(this, HIDDEN) && has(this[HIDDEN], tag)) this[HIDDEN][tag] = false;
      setSymbolDescriptor(this, tag, createPropertyDescriptor(1, value));
    };
    if (DESCRIPTORS && USE_SETTER) setSymbolDescriptor(ObjectPrototype, tag, { configurable: true, set: setter });
    return wrap(tag, description);
  };

  redefine($Symbol[PROTOTYPE], 'toString', function toString() {
    return getInternalState(this).tag;
  });

  redefine($Symbol, 'withoutSetter', function (description) {
    return wrap(uid(description), description);
  });

  propertyIsEnumerableModule.f = $propertyIsEnumerable;
  definePropertyModule.f = $defineProperty;
  getOwnPropertyDescriptorModule.f = $getOwnPropertyDescriptor;
  getOwnPropertyNamesModule.f = getOwnPropertyNamesExternal.f = $getOwnPropertyNames;
  getOwnPropertySymbolsModule.f = $getOwnPropertySymbols;

  wrappedWellKnownSymbolModule.f = function (name) {
    return wrap(wellKnownSymbol(name), name);
  };

  if (DESCRIPTORS) {
    // https://github.com/tc39/proposal-Symbol-description
    nativeDefineProperty($Symbol[PROTOTYPE], 'description', {
      configurable: true,
      get: function description() {
        return getInternalState(this).description;
      }
    });
    if (!IS_PURE) {
      redefine(ObjectPrototype, 'propertyIsEnumerable', $propertyIsEnumerable, { unsafe: true });
    }
  }
}

$({ global: true, wrap: true, forced: !NATIVE_SYMBOL, sham: !NATIVE_SYMBOL }, {
  Symbol: $Symbol
});

$forEach(objectKeys(WellKnownSymbolsStore), function (name) {
  defineWellKnownSymbol(name);
});

$({ target: SYMBOL, stat: true, forced: !NATIVE_SYMBOL }, {
  // `Symbol.for` method
  // https://tc39.github.io/ecma262/#sec-symbol.for
  'for': function (key) {
    var string = String(key);
    if (has(StringToSymbolRegistry, string)) return StringToSymbolRegistry[string];
    var symbol = $Symbol(string);
    StringToSymbolRegistry[string] = symbol;
    SymbolToStringRegistry[symbol] = string;
    return symbol;
  },
  // `Symbol.keyFor` method
  // https://tc39.github.io/ecma262/#sec-symbol.keyfor
  keyFor: function keyFor(sym) {
    if (!isSymbol(sym)) throw TypeError(sym + ' is not a symbol');
    if (has(SymbolToStringRegistry, sym)) return SymbolToStringRegistry[sym];
  },
  useSetter: function () { USE_SETTER = true; },
  useSimple: function () { USE_SETTER = false; }
});

$({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL, sham: !DESCRIPTORS }, {
  // `Object.create` method
  // https://tc39.github.io/ecma262/#sec-object.create
  create: $create,
  // `Object.defineProperty` method
  // https://tc39.github.io/ecma262/#sec-object.defineproperty
  defineProperty: $defineProperty,
  // `Object.defineProperties` method
  // https://tc39.github.io/ecma262/#sec-object.defineproperties
  defineProperties: $defineProperties,
  // `Object.getOwnPropertyDescriptor` method
  // https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptors
  getOwnPropertyDescriptor: $getOwnPropertyDescriptor
});

$({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL }, {
  // `Object.getOwnPropertyNames` method
  // https://tc39.github.io/ecma262/#sec-object.getownpropertynames
  getOwnPropertyNames: $getOwnPropertyNames,
  // `Object.getOwnPropertySymbols` method
  // https://tc39.github.io/ecma262/#sec-object.getownpropertysymbols
  getOwnPropertySymbols: $getOwnPropertySymbols
});

// Chrome 38 and 39 `Object.getOwnPropertySymbols` fails on primitives
// https://bugs.chromium.org/p/v8/issues/detail?id=3443
$({ target: 'Object', stat: true, forced: fails(function () { getOwnPropertySymbolsModule.f(1); }) }, {
  getOwnPropertySymbols: function getOwnPropertySymbols(it) {
    return getOwnPropertySymbolsModule.f(toObject(it));
  }
});

// `JSON.stringify` method behavior with symbols
// https://tc39.github.io/ecma262/#sec-json.stringify
if ($stringify) {
  var FORCED_JSON_STRINGIFY = !NATIVE_SYMBOL || fails(function () {
    var symbol = $Symbol();
    // MS Edge converts symbol values to JSON as {}
    return $stringify([symbol]) != '[null]'
      // WebKit converts symbol values to JSON as null
      || $stringify({ a: symbol }) != '{}'
      // V8 throws on boxed symbols
      || $stringify(Object(symbol)) != '{}';
  });

  $({ target: 'JSON', stat: true, forced: FORCED_JSON_STRINGIFY }, {
    // eslint-disable-next-line no-unused-vars
    stringify: function stringify(it, replacer, space) {
      var args = [it];
      var index = 1;
      var $replacer;
      while (arguments.length > index) args.push(arguments[index++]);
      $replacer = replacer;
      if (!isObject(replacer) && it === undefined || isSymbol(it)) return; // IE8 returns string on undefined
      if (!isArray(replacer)) replacer = function (key, value) {
        if (typeof $replacer == 'function') value = $replacer.call(this, key, value);
        if (!isSymbol(value)) return value;
      };
      args[1] = replacer;
      return $stringify.apply(null, args);
    }
  });
}

// `Symbol.prototype[@@toPrimitive]` method
// https://tc39.github.io/ecma262/#sec-symbol.prototype-@@toprimitive
if (!$Symbol[PROTOTYPE][TO_PRIMITIVE]) {
  createNonEnumerableProperty($Symbol[PROTOTYPE], TO_PRIMITIVE, $Symbol[PROTOTYPE].valueOf);
}
// `Symbol.prototype[@@toStringTag]` property
// https://tc39.github.io/ecma262/#sec-symbol.prototype-@@tostringtag
setToStringTag($Symbol, SYMBOL);

hiddenKeys[HIDDEN] = true;

},{"../internals/an-object":107,"../internals/array-iteration":116,"../internals/create-non-enumerable-property":131,"../internals/create-property-descriptor":132,"../internals/define-well-known-symbol":135,"../internals/descriptors":136,"../internals/export":144,"../internals/fails":145,"../internals/get-built-in":148,"../internals/global":150,"../internals/has":151,"../internals/hidden-keys":152,"../internals/internal-state":160,"../internals/is-array":162,"../internals/is-object":164,"../internals/is-pure":165,"../internals/native-symbol":173,"../internals/object-create":178,"../internals/object-define-property":180,"../internals/object-get-own-property-descriptor":181,"../internals/object-get-own-property-names":183,"../internals/object-get-own-property-names-external":182,"../internals/object-get-own-property-symbols":184,"../internals/object-keys":187,"../internals/object-property-is-enumerable":188,"../internals/redefine":197,"../internals/set-to-string-tag":206,"../internals/shared":209,"../internals/shared-key":207,"../internals/to-indexed-object":217,"../internals/to-object":220,"../internals/to-primitive":223,"../internals/uid":228,"../internals/use-symbol-as-uid":229,"../internals/well-known-symbol":231,"../internals/well-known-symbol-wrapped":230}],267:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var $copyWithin = require('../internals/array-copy-within');

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.copyWithin` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.copywithin
exportTypedArrayMethod('copyWithin', function copyWithin(target, start /* , end */) {
  return $copyWithin.call(aTypedArray(this), target, start, arguments.length > 2 ? arguments[2] : undefined);
});

},{"../internals/array-buffer-view-core":109,"../internals/array-copy-within":111}],268:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var $every = require('../internals/array-iteration').every;

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.every` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.every
exportTypedArrayMethod('every', function every(callbackfn /* , thisArg */) {
  return $every(aTypedArray(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
});

},{"../internals/array-buffer-view-core":109,"../internals/array-iteration":116}],269:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var $fill = require('../internals/array-fill');

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.fill` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.fill
// eslint-disable-next-line no-unused-vars
exportTypedArrayMethod('fill', function fill(value /* , start, end */) {
  return $fill.apply(aTypedArray(this), arguments);
});

},{"../internals/array-buffer-view-core":109,"../internals/array-fill":112}],270:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var $filter = require('../internals/array-iteration').filter;
var speciesConstructor = require('../internals/species-constructor');

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var aTypedArrayConstructor = ArrayBufferViewCore.aTypedArrayConstructor;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.filter` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.filter
exportTypedArrayMethod('filter', function filter(callbackfn /* , thisArg */) {
  var list = $filter(aTypedArray(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  var C = speciesConstructor(this, this.constructor);
  var index = 0;
  var length = list.length;
  var result = new (aTypedArrayConstructor(C))(length);
  while (length > index) result[index] = list[index++];
  return result;
});

},{"../internals/array-buffer-view-core":109,"../internals/array-iteration":116,"../internals/species-constructor":210}],271:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var $findIndex = require('../internals/array-iteration').findIndex;

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.findIndex` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.findindex
exportTypedArrayMethod('findIndex', function findIndex(predicate /* , thisArg */) {
  return $findIndex(aTypedArray(this), predicate, arguments.length > 1 ? arguments[1] : undefined);
});

},{"../internals/array-buffer-view-core":109,"../internals/array-iteration":116}],272:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var $find = require('../internals/array-iteration').find;

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.find` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.find
exportTypedArrayMethod('find', function find(predicate /* , thisArg */) {
  return $find(aTypedArray(this), predicate, arguments.length > 1 ? arguments[1] : undefined);
});

},{"../internals/array-buffer-view-core":109,"../internals/array-iteration":116}],273:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var $forEach = require('../internals/array-iteration').forEach;

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.forEach` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.foreach
exportTypedArrayMethod('forEach', function forEach(callbackfn /* , thisArg */) {
  $forEach(aTypedArray(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
});

},{"../internals/array-buffer-view-core":109,"../internals/array-iteration":116}],274:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var $includes = require('../internals/array-includes').includes;

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.includes` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.includes
exportTypedArrayMethod('includes', function includes(searchElement /* , fromIndex */) {
  return $includes(aTypedArray(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);
});

},{"../internals/array-buffer-view-core":109,"../internals/array-includes":115}],275:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var $indexOf = require('../internals/array-includes').indexOf;

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.indexOf` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.indexof
exportTypedArrayMethod('indexOf', function indexOf(searchElement /* , fromIndex */) {
  return $indexOf(aTypedArray(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);
});

},{"../internals/array-buffer-view-core":109,"../internals/array-includes":115}],276:[function(require,module,exports){
'use strict';
var global = require('../internals/global');
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var ArrayIterators = require('../modules/es.array.iterator');
var wellKnownSymbol = require('../internals/well-known-symbol');

var ITERATOR = wellKnownSymbol('iterator');
var Uint8Array = global.Uint8Array;
var arrayValues = ArrayIterators.values;
var arrayKeys = ArrayIterators.keys;
var arrayEntries = ArrayIterators.entries;
var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
var nativeTypedArrayIterator = Uint8Array && Uint8Array.prototype[ITERATOR];

var CORRECT_ITER_NAME = !!nativeTypedArrayIterator
  && (nativeTypedArrayIterator.name == 'values' || nativeTypedArrayIterator.name == undefined);

var typedArrayValues = function values() {
  return arrayValues.call(aTypedArray(this));
};

// `%TypedArray%.prototype.entries` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.entries
exportTypedArrayMethod('entries', function entries() {
  return arrayEntries.call(aTypedArray(this));
});
// `%TypedArray%.prototype.keys` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.keys
exportTypedArrayMethod('keys', function keys() {
  return arrayKeys.call(aTypedArray(this));
});
// `%TypedArray%.prototype.values` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.values
exportTypedArrayMethod('values', typedArrayValues, !CORRECT_ITER_NAME);
// `%TypedArray%.prototype[@@iterator]` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype-@@iterator
exportTypedArrayMethod(ITERATOR, typedArrayValues, !CORRECT_ITER_NAME);

},{"../internals/array-buffer-view-core":109,"../internals/global":150,"../internals/well-known-symbol":231,"../modules/es.array.iterator":242}],277:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
var $join = [].join;

// `%TypedArray%.prototype.join` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.join
// eslint-disable-next-line no-unused-vars
exportTypedArrayMethod('join', function join(separator) {
  return $join.apply(aTypedArray(this), arguments);
});

},{"../internals/array-buffer-view-core":109}],278:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var $lastIndexOf = require('../internals/array-last-index-of');

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.lastIndexOf` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.lastindexof
// eslint-disable-next-line no-unused-vars
exportTypedArrayMethod('lastIndexOf', function lastIndexOf(searchElement /* , fromIndex */) {
  return $lastIndexOf.apply(aTypedArray(this), arguments);
});

},{"../internals/array-buffer-view-core":109,"../internals/array-last-index-of":117}],279:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var $map = require('../internals/array-iteration').map;
var speciesConstructor = require('../internals/species-constructor');

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var aTypedArrayConstructor = ArrayBufferViewCore.aTypedArrayConstructor;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.map` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.map
exportTypedArrayMethod('map', function map(mapfn /* , thisArg */) {
  return $map(aTypedArray(this), mapfn, arguments.length > 1 ? arguments[1] : undefined, function (O, length) {
    return new (aTypedArrayConstructor(speciesConstructor(O, O.constructor)))(length);
  });
});

},{"../internals/array-buffer-view-core":109,"../internals/array-iteration":116,"../internals/species-constructor":210}],280:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var $reduceRight = require('../internals/array-reduce').right;

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.reduceRicht` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.reduceright
exportTypedArrayMethod('reduceRight', function reduceRight(callbackfn /* , initialValue */) {
  return $reduceRight(aTypedArray(this), callbackfn, arguments.length, arguments.length > 1 ? arguments[1] : undefined);
});

},{"../internals/array-buffer-view-core":109,"../internals/array-reduce":121}],281:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var $reduce = require('../internals/array-reduce').left;

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.reduce` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.reduce
exportTypedArrayMethod('reduce', function reduce(callbackfn /* , initialValue */) {
  return $reduce(aTypedArray(this), callbackfn, arguments.length, arguments.length > 1 ? arguments[1] : undefined);
});

},{"../internals/array-buffer-view-core":109,"../internals/array-reduce":121}],282:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
var floor = Math.floor;

// `%TypedArray%.prototype.reverse` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.reverse
exportTypedArrayMethod('reverse', function reverse() {
  var that = this;
  var length = aTypedArray(that).length;
  var middle = floor(length / 2);
  var index = 0;
  var value;
  while (index < middle) {
    value = that[index];
    that[index++] = that[--length];
    that[length] = value;
  } return that;
});

},{"../internals/array-buffer-view-core":109}],283:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var toLength = require('../internals/to-length');
var toOffset = require('../internals/to-offset');
var toObject = require('../internals/to-object');
var fails = require('../internals/fails');

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

var FORCED = fails(function () {
  // eslint-disable-next-line no-undef
  new Int8Array(1).set({});
});

// `%TypedArray%.prototype.set` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.set
exportTypedArrayMethod('set', function set(arrayLike /* , offset */) {
  aTypedArray(this);
  var offset = toOffset(arguments.length > 1 ? arguments[1] : undefined, 1);
  var length = this.length;
  var src = toObject(arrayLike);
  var len = toLength(src.length);
  var index = 0;
  if (len + offset > length) throw RangeError('Wrong length');
  while (index < len) this[offset + index] = src[index++];
}, FORCED);

},{"../internals/array-buffer-view-core":109,"../internals/fails":145,"../internals/to-length":219,"../internals/to-object":220,"../internals/to-offset":221}],284:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var speciesConstructor = require('../internals/species-constructor');
var fails = require('../internals/fails');

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var aTypedArrayConstructor = ArrayBufferViewCore.aTypedArrayConstructor;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
var $slice = [].slice;

var FORCED = fails(function () {
  // eslint-disable-next-line no-undef
  new Int8Array(1).slice();
});

// `%TypedArray%.prototype.slice` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.slice
exportTypedArrayMethod('slice', function slice(start, end) {
  var list = $slice.call(aTypedArray(this), start, end);
  var C = speciesConstructor(this, this.constructor);
  var index = 0;
  var length = list.length;
  var result = new (aTypedArrayConstructor(C))(length);
  while (length > index) result[index] = list[index++];
  return result;
}, FORCED);

},{"../internals/array-buffer-view-core":109,"../internals/fails":145,"../internals/species-constructor":210}],285:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var $some = require('../internals/array-iteration').some;

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.some` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.some
exportTypedArrayMethod('some', function some(callbackfn /* , thisArg */) {
  return $some(aTypedArray(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
});

},{"../internals/array-buffer-view-core":109,"../internals/array-iteration":116}],286:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
var $sort = [].sort;

// `%TypedArray%.prototype.sort` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.sort
exportTypedArrayMethod('sort', function sort(comparefn) {
  return $sort.call(aTypedArray(this), comparefn);
});

},{"../internals/array-buffer-view-core":109}],287:[function(require,module,exports){
'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var toLength = require('../internals/to-length');
var toAbsoluteIndex = require('../internals/to-absolute-index');
var speciesConstructor = require('../internals/species-constructor');

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.subarray` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.subarray
exportTypedArrayMethod('subarray', function subarray(begin, end) {
  var O = aTypedArray(this);
  var length = O.length;
  var beginIndex = toAbsoluteIndex(begin, length);
  return new (speciesConstructor(O, O.constructor))(
    O.buffer,
    O.byteOffset + beginIndex * O.BYTES_PER_ELEMENT,
    toLength((end === undefined ? length : toAbsoluteIndex(end, length)) - beginIndex)
  );
});

},{"../internals/array-buffer-view-core":109,"../internals/species-constructor":210,"../internals/to-absolute-index":215,"../internals/to-length":219}],288:[function(require,module,exports){
'use strict';
var global = require('../internals/global');
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var fails = require('../internals/fails');

var Int8Array = global.Int8Array;
var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
var $toLocaleString = [].toLocaleString;
var $slice = [].slice;

// iOS Safari 6.x fails here
var TO_LOCALE_STRING_BUG = !!Int8Array && fails(function () {
  $toLocaleString.call(new Int8Array(1));
});

var FORCED = fails(function () {
  return [1, 2].toLocaleString() != new Int8Array([1, 2]).toLocaleString();
}) || !fails(function () {
  Int8Array.prototype.toLocaleString.call([1, 2]);
});

// `%TypedArray%.prototype.toLocaleString` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.tolocalestring
exportTypedArrayMethod('toLocaleString', function toLocaleString() {
  return $toLocaleString.apply(TO_LOCALE_STRING_BUG ? $slice.call(aTypedArray(this)) : aTypedArray(this), arguments);
}, FORCED);

},{"../internals/array-buffer-view-core":109,"../internals/fails":145,"../internals/global":150}],289:[function(require,module,exports){
'use strict';
var exportTypedArrayMethod = require('../internals/array-buffer-view-core').exportTypedArrayMethod;
var fails = require('../internals/fails');
var global = require('../internals/global');

var Uint8Array = global.Uint8Array;
var Uint8ArrayPrototype = Uint8Array && Uint8Array.prototype || {};
var arrayToString = [].toString;
var arrayJoin = [].join;

if (fails(function () { arrayToString.call({}); })) {
  arrayToString = function toString() {
    return arrayJoin.call(this);
  };
}

var IS_NOT_ARRAY_METHOD = Uint8ArrayPrototype.toString != arrayToString;

// `%TypedArray%.prototype.toString` method
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.tostring
exportTypedArrayMethod('toString', arrayToString, IS_NOT_ARRAY_METHOD);

},{"../internals/array-buffer-view-core":109,"../internals/fails":145,"../internals/global":150}],290:[function(require,module,exports){
var createTypedArrayConstructor = require('../internals/typed-array-constructor');

// `Uint8Array` constructor
// https://tc39.github.io/ecma262/#sec-typedarray-objects
createTypedArrayConstructor('Uint8', function (init) {
  return function Uint8Array(data, byteOffset, length) {
    return init(this, data, byteOffset, length);
  };
});

},{"../internals/typed-array-constructor":225}],291:[function(require,module,exports){
var global = require('../internals/global');
var DOMIterables = require('../internals/dom-iterables');
var forEach = require('../internals/array-for-each');
var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');

for (var COLLECTION_NAME in DOMIterables) {
  var Collection = global[COLLECTION_NAME];
  var CollectionPrototype = Collection && Collection.prototype;
  // some Chrome versions have non-configurable methods on DOMTokenList
  if (CollectionPrototype && CollectionPrototype.forEach !== forEach) try {
    createNonEnumerableProperty(CollectionPrototype, 'forEach', forEach);
  } catch (error) {
    CollectionPrototype.forEach = forEach;
  }
}

},{"../internals/array-for-each":113,"../internals/create-non-enumerable-property":131,"../internals/dom-iterables":138,"../internals/global":150}],292:[function(require,module,exports){
var global = require('../internals/global');
var DOMIterables = require('../internals/dom-iterables');
var ArrayIteratorMethods = require('../modules/es.array.iterator');
var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');
var wellKnownSymbol = require('../internals/well-known-symbol');

var ITERATOR = wellKnownSymbol('iterator');
var TO_STRING_TAG = wellKnownSymbol('toStringTag');
var ArrayValues = ArrayIteratorMethods.values;

for (var COLLECTION_NAME in DOMIterables) {
  var Collection = global[COLLECTION_NAME];
  var CollectionPrototype = Collection && Collection.prototype;
  if (CollectionPrototype) {
    // some Chrome versions have non-configurable methods on DOMTokenList
    if (CollectionPrototype[ITERATOR] !== ArrayValues) try {
      createNonEnumerableProperty(CollectionPrototype, ITERATOR, ArrayValues);
    } catch (error) {
      CollectionPrototype[ITERATOR] = ArrayValues;
    }
    if (!CollectionPrototype[TO_STRING_TAG]) {
      createNonEnumerableProperty(CollectionPrototype, TO_STRING_TAG, COLLECTION_NAME);
    }
    if (DOMIterables[COLLECTION_NAME]) for (var METHOD_NAME in ArrayIteratorMethods) {
      // some Chrome versions have non-configurable methods on DOMTokenList
      if (CollectionPrototype[METHOD_NAME] !== ArrayIteratorMethods[METHOD_NAME]) try {
        createNonEnumerableProperty(CollectionPrototype, METHOD_NAME, ArrayIteratorMethods[METHOD_NAME]);
      } catch (error) {
        CollectionPrototype[METHOD_NAME] = ArrayIteratorMethods[METHOD_NAME];
      }
    }
  }
}

},{"../internals/create-non-enumerable-property":131,"../internals/dom-iterables":138,"../internals/global":150,"../internals/well-known-symbol":231,"../modules/es.array.iterator":242}],293:[function(require,module,exports){
(function (Buffer){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.

function isArray(arg) {
  if (Array.isArray) {
    return Array.isArray(arg);
  }
  return objectToString(arg) === '[object Array]';
}
exports.isArray = isArray;

function isBoolean(arg) {
  return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;

function isNull(arg) {
  return arg === null;
}
exports.isNull = isNull;

function isNullOrUndefined(arg) {
  return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;

function isNumber(arg) {
  return typeof arg === 'number';
}
exports.isNumber = isNumber;

function isString(arg) {
  return typeof arg === 'string';
}
exports.isString = isString;

function isSymbol(arg) {
  return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;

function isUndefined(arg) {
  return arg === void 0;
}
exports.isUndefined = isUndefined;

function isRegExp(re) {
  return objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;

function isDate(d) {
  return objectToString(d) === '[object Date]';
}
exports.isDate = isDate;

function isError(e) {
  return (objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;

function isFunction(arg) {
  return typeof arg === 'function';
}
exports.isFunction = isFunction;

function isPrimitive(arg) {
  return arg === null ||
         typeof arg === 'boolean' ||
         typeof arg === 'number' ||
         typeof arg === 'string' ||
         typeof arg === 'symbol' ||  // ES6 symbol
         typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;

exports.isBuffer = Buffer.isBuffer;

function objectToString(o) {
  return Object.prototype.toString.call(o);
}

}).call(this,{"isBuffer":require("../../is-buffer/index.js")})
},{"../../is-buffer/index.js":307}],294:[function(require,module,exports){
/*
 * Date Format 1.2.3
 * (c) 2007-2009 Steven Levithan <stevenlevithan.com>
 * MIT license
 *
 * Includes enhancements by Scott Trenda <scott.trenda.net>
 * and Kris Kowal <cixar.com/~kris.kowal/>
 *
 * Accepts a date, a mask, or a date and a mask.
 * Returns a formatted version of the given date.
 * The date defaults to the current date/time.
 * The mask defaults to dateFormat.masks.default.
 */

(function(global) {
  'use strict';

  var dateFormat = (function() {
      var token = /d{1,4}|m{1,4}|yy(?:yy)?|([HhMsTt])\1?|[LloSZWN]|'[^']*'|'[^']*'/g;
      var timezone = /\b(?:[PMCEA][SDP]T|(?:Pacific|Mountain|Central|Eastern|Atlantic) (?:Standard|Daylight|Prevailing) Time|(?:GMT|UTC)(?:[-+]\d{4})?)\b/g;
      var timezoneClip = /[^-+\dA-Z]/g;
  
      // Regexes and supporting functions are cached through closure
      return function (date, mask, utc, gmt) {
  
        // You can't provide utc if you skip other args (use the 'UTC:' mask prefix)
        if (arguments.length === 1 && kindOf(date) === 'string' && !/\d/.test(date)) {
          mask = date;
          date = undefined;
        }
  
        date = date || new Date;
  
        if(!(date instanceof Date)) {
          date = new Date(date);
        }
  
        if (isNaN(date)) {
          throw TypeError('Invalid date');
        }
  
        mask = String(dateFormat.masks[mask] || mask || dateFormat.masks['default']);
  
        // Allow setting the utc/gmt argument via the mask
        var maskSlice = mask.slice(0, 4);
        if (maskSlice === 'UTC:' || maskSlice === 'GMT:') {
          mask = mask.slice(4);
          utc = true;
          if (maskSlice === 'GMT:') {
            gmt = true;
          }
        }
  
        var _ = utc ? 'getUTC' : 'get';
        var d = date[_ + 'Date']();
        var D = date[_ + 'Day']();
        var m = date[_ + 'Month']();
        var y = date[_ + 'FullYear']();
        var H = date[_ + 'Hours']();
        var M = date[_ + 'Minutes']();
        var s = date[_ + 'Seconds']();
        var L = date[_ + 'Milliseconds']();
        var o = utc ? 0 : date.getTimezoneOffset();
        var W = getWeek(date);
        var N = getDayOfWeek(date);
        var flags = {
          d:    d,
          dd:   pad(d),
          ddd:  dateFormat.i18n.dayNames[D],
          dddd: dateFormat.i18n.dayNames[D + 7],
          m:    m + 1,
          mm:   pad(m + 1),
          mmm:  dateFormat.i18n.monthNames[m],
          mmmm: dateFormat.i18n.monthNames[m + 12],
          yy:   String(y).slice(2),
          yyyy: y,
          h:    H % 12 || 12,
          hh:   pad(H % 12 || 12),
          H:    H,
          HH:   pad(H),
          M:    M,
          MM:   pad(M),
          s:    s,
          ss:   pad(s),
          l:    pad(L, 3),
          L:    pad(Math.round(L / 10)),
          t:    H < 12 ? 'a'  : 'p',
          tt:   H < 12 ? 'am' : 'pm',
          T:    H < 12 ? 'A'  : 'P',
          TT:   H < 12 ? 'AM' : 'PM',
          Z:    gmt ? 'GMT' : utc ? 'UTC' : (String(date).match(timezone) || ['']).pop().replace(timezoneClip, ''),
          o:    (o > 0 ? '-' : '+') + pad(Math.floor(Math.abs(o) / 60) * 100 + Math.abs(o) % 60, 4),
          S:    ['th', 'st', 'nd', 'rd'][d % 10 > 3 ? 0 : (d % 100 - d % 10 != 10) * d % 10],
          W:    W,
          N:    N
        };
  
        return mask.replace(token, function (match) {
          if (match in flags) {
            return flags[match];
          }
          return match.slice(1, match.length - 1);
        });
      };
    })();

  dateFormat.masks = {
    'default':               'ddd mmm dd yyyy HH:MM:ss',
    'shortDate':             'm/d/yy',
    'mediumDate':            'mmm d, yyyy',
    'longDate':              'mmmm d, yyyy',
    'fullDate':              'dddd, mmmm d, yyyy',
    'shortTime':             'h:MM TT',
    'mediumTime':            'h:MM:ss TT',
    'longTime':              'h:MM:ss TT Z',
    'isoDate':               'yyyy-mm-dd',
    'isoTime':               'HH:MM:ss',
    'isoDateTime':           'yyyy-mm-dd\'T\'HH:MM:sso',
    'isoUtcDateTime':        'UTC:yyyy-mm-dd\'T\'HH:MM:ss\'Z\'',
    'expiresHeaderFormat':   'ddd, dd mmm yyyy HH:MM:ss Z'
  };

  // Internationalization strings
  dateFormat.i18n = {
    dayNames: [
      'Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat',
      'Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'
    ],
    monthNames: [
      'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec',
      'January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'
    ]
  };

function pad(val, len) {
  val = String(val);
  len = len || 2;
  while (val.length < len) {
    val = '0' + val;
  }
  return val;
}

/**
 * Get the ISO 8601 week number
 * Based on comments from
 * http://techblog.procurios.nl/k/n618/news/view/33796/14863/Calculate-ISO-8601-week-and-year-in-javascript.html
 *
 * @param  {Object} `date`
 * @return {Number}
 */
function getWeek(date) {
  // Remove time components of date
  var targetThursday = new Date(date.getFullYear(), date.getMonth(), date.getDate());

  // Change date to Thursday same week
  targetThursday.setDate(targetThursday.getDate() - ((targetThursday.getDay() + 6) % 7) + 3);

  // Take January 4th as it is always in week 1 (see ISO 8601)
  var firstThursday = new Date(targetThursday.getFullYear(), 0, 4);

  // Change date to Thursday same week
  firstThursday.setDate(firstThursday.getDate() - ((firstThursday.getDay() + 6) % 7) + 3);

  // Check if daylight-saving-time-switch occurred and correct for it
  var ds = targetThursday.getTimezoneOffset() - firstThursday.getTimezoneOffset();
  targetThursday.setHours(targetThursday.getHours() - ds);

  // Number of weeks between target Thursday and first Thursday
  var weekDiff = (targetThursday - firstThursday) / (86400000*7);
  return 1 + Math.floor(weekDiff);
}

/**
 * Get ISO-8601 numeric representation of the day of the week
 * 1 (for Monday) through 7 (for Sunday)
 * 
 * @param  {Object} `date`
 * @return {Number}
 */
function getDayOfWeek(date) {
  var dow = date.getDay();
  if(dow === 0) {
    dow = 7;
  }
  return dow;
}

/**
 * kind-of shortcut
 * @param  {*} val
 * @return {String}
 */
function kindOf(val) {
  if (val === null) {
    return 'null';
  }

  if (val === undefined) {
    return 'undefined';
  }

  if (typeof val !== 'object') {
    return typeof val;
  }

  if (Array.isArray(val)) {
    return 'array';
  }

  return {}.toString.call(val)
    .slice(8, -1).toLowerCase();
};



  if (typeof define === 'function' && define.amd) {
    define(function () {
      return dateFormat;
    });
  } else if (typeof exports === 'object') {
    module.exports = dateFormat;
  } else {
    global.dateFormat = dateFormat;
  }
})(this);

},{}],295:[function(require,module,exports){
/*!
 * escape-html
 * Copyright(c) 2012-2013 TJ Holowaychuk
 * Copyright(c) 2015 Andreas Lubbe
 * Copyright(c) 2015 Tiancheng "Timothy" Gu
 * MIT Licensed
 */

'use strict';

/**
 * Module variables.
 * @private
 */

var matchHtmlRegExp = /["'&<>]/;

/**
 * Module exports.
 * @public
 */

module.exports = escapeHtml;

/**
 * Escape special characters in the given string of html.
 *
 * @param  {string} string The string to escape for inserting into HTML
 * @return {string}
 * @public
 */

function escapeHtml(string) {
  var str = '' + string;
  var match = matchHtmlRegExp.exec(str);

  if (!match) {
    return str;
  }

  var escape;
  var html = '';
  var index = 0;
  var lastIndex = 0;

  for (index = match.index; index < str.length; index++) {
    switch (str.charCodeAt(index)) {
      case 34: // "
        escape = '&quot;';
        break;
      case 38: // &
        escape = '&amp;';
        break;
      case 39: // '
        escape = '&#39;';
        break;
      case 60: // <
        escape = '&lt;';
        break;
      case 62: // >
        escape = '&gt;';
        break;
      default:
        continue;
    }

    if (lastIndex !== index) {
      html += str.substring(lastIndex, index);
    }

    lastIndex = index + 1;
    html += escape;
  }

  return lastIndex !== index
    ? html + str.substring(lastIndex, index)
    : html;
}

},{}],296:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var objectCreate = Object.create || objectCreatePolyfill
var objectKeys = Object.keys || objectKeysPolyfill
var bind = Function.prototype.bind || functionBindPolyfill

function EventEmitter() {
  if (!this._events || !Object.prototype.hasOwnProperty.call(this, '_events')) {
    this._events = objectCreate(null);
    this._eventsCount = 0;
  }

  this._maxListeners = this._maxListeners || undefined;
}
module.exports = EventEmitter;

// Backwards-compat with node 0.10.x
EventEmitter.EventEmitter = EventEmitter;

EventEmitter.prototype._events = undefined;
EventEmitter.prototype._maxListeners = undefined;

// By default EventEmitters will print a warning if more than 10 listeners are
// added to it. This is a useful default which helps finding memory leaks.
var defaultMaxListeners = 10;

var hasDefineProperty;
try {
  var o = {};
  if (Object.defineProperty) Object.defineProperty(o, 'x', { value: 0 });
  hasDefineProperty = o.x === 0;
} catch (err) { hasDefineProperty = false }
if (hasDefineProperty) {
  Object.defineProperty(EventEmitter, 'defaultMaxListeners', {
    enumerable: true,
    get: function() {
      return defaultMaxListeners;
    },
    set: function(arg) {
      // check whether the input is a positive number (whose value is zero or
      // greater and not a NaN).
      if (typeof arg !== 'number' || arg < 0 || arg !== arg)
        throw new TypeError('"defaultMaxListeners" must be a positive number');
      defaultMaxListeners = arg;
    }
  });
} else {
  EventEmitter.defaultMaxListeners = defaultMaxListeners;
}

// Obviously not all Emitters should be limited to 10. This function allows
// that to be increased. Set to zero for unlimited.
EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {
  if (typeof n !== 'number' || n < 0 || isNaN(n))
    throw new TypeError('"n" argument must be a positive number');
  this._maxListeners = n;
  return this;
};

function $getMaxListeners(that) {
  if (that._maxListeners === undefined)
    return EventEmitter.defaultMaxListeners;
  return that._maxListeners;
}

EventEmitter.prototype.getMaxListeners = function getMaxListeners() {
  return $getMaxListeners(this);
};

// These standalone emit* functions are used to optimize calling of event
// handlers for fast cases because emit() itself often has a variable number of
// arguments and can be deoptimized because of that. These functions always have
// the same number of arguments and thus do not get deoptimized, so the code
// inside them can execute faster.
function emitNone(handler, isFn, self) {
  if (isFn)
    handler.call(self);
  else {
    var len = handler.length;
    var listeners = arrayClone(handler, len);
    for (var i = 0; i < len; ++i)
      listeners[i].call(self);
  }
}
function emitOne(handler, isFn, self, arg1) {
  if (isFn)
    handler.call(self, arg1);
  else {
    var len = handler.length;
    var listeners = arrayClone(handler, len);
    for (var i = 0; i < len; ++i)
      listeners[i].call(self, arg1);
  }
}
function emitTwo(handler, isFn, self, arg1, arg2) {
  if (isFn)
    handler.call(self, arg1, arg2);
  else {
    var len = handler.length;
    var listeners = arrayClone(handler, len);
    for (var i = 0; i < len; ++i)
      listeners[i].call(self, arg1, arg2);
  }
}
function emitThree(handler, isFn, self, arg1, arg2, arg3) {
  if (isFn)
    handler.call(self, arg1, arg2, arg3);
  else {
    var len = handler.length;
    var listeners = arrayClone(handler, len);
    for (var i = 0; i < len; ++i)
      listeners[i].call(self, arg1, arg2, arg3);
  }
}

function emitMany(handler, isFn, self, args) {
  if (isFn)
    handler.apply(self, args);
  else {
    var len = handler.length;
    var listeners = arrayClone(handler, len);
    for (var i = 0; i < len; ++i)
      listeners[i].apply(self, args);
  }
}

EventEmitter.prototype.emit = function emit(type) {
  var er, handler, len, args, i, events;
  var doError = (type === 'error');

  events = this._events;
  if (events)
    doError = (doError && events.error == null);
  else if (!doError)
    return false;

  // If there is no 'error' event listener then throw.
  if (doError) {
    if (arguments.length > 1)
      er = arguments[1];
    if (er instanceof Error) {
      throw er; // Unhandled 'error' event
    } else {
      // At least give some kind of context to the user
      var err = new Error('Unhandled "error" event. (' + er + ')');
      err.context = er;
      throw err;
    }
    return false;
  }

  handler = events[type];

  if (!handler)
    return false;

  var isFn = typeof handler === 'function';
  len = arguments.length;
  switch (len) {
      // fast cases
    case 1:
      emitNone(handler, isFn, this);
      break;
    case 2:
      emitOne(handler, isFn, this, arguments[1]);
      break;
    case 3:
      emitTwo(handler, isFn, this, arguments[1], arguments[2]);
      break;
    case 4:
      emitThree(handler, isFn, this, arguments[1], arguments[2], arguments[3]);
      break;
      // slower
    default:
      args = new Array(len - 1);
      for (i = 1; i < len; i++)
        args[i - 1] = arguments[i];
      emitMany(handler, isFn, this, args);
  }

  return true;
};

function _addListener(target, type, listener, prepend) {
  var m;
  var events;
  var existing;

  if (typeof listener !== 'function')
    throw new TypeError('"listener" argument must be a function');

  events = target._events;
  if (!events) {
    events = target._events = objectCreate(null);
    target._eventsCount = 0;
  } else {
    // To avoid recursion in the case that type === "newListener"! Before
    // adding it to the listeners, first emit "newListener".
    if (events.newListener) {
      target.emit('newListener', type,
          listener.listener ? listener.listener : listener);

      // Re-assign `events` because a newListener handler could have caused the
      // this._events to be assigned to a new object
      events = target._events;
    }
    existing = events[type];
  }

  if (!existing) {
    // Optimize the case of one listener. Don't need the extra array object.
    existing = events[type] = listener;
    ++target._eventsCount;
  } else {
    if (typeof existing === 'function') {
      // Adding the second element, need to change to array.
      existing = events[type] =
          prepend ? [listener, existing] : [existing, listener];
    } else {
      // If we've already got an array, just append.
      if (prepend) {
        existing.unshift(listener);
      } else {
        existing.push(listener);
      }
    }

    // Check for listener leak
    if (!existing.warned) {
      m = $getMaxListeners(target);
      if (m && m > 0 && existing.length > m) {
        existing.warned = true;
        var w = new Error('Possible EventEmitter memory leak detected. ' +
            existing.length + ' "' + String(type) + '" listeners ' +
            'added. Use emitter.setMaxListeners() to ' +
            'increase limit.');
        w.name = 'MaxListenersExceededWarning';
        w.emitter = target;
        w.type = type;
        w.count = existing.length;
        if (typeof console === 'object' && console.warn) {
          console.warn('%s: %s', w.name, w.message);
        }
      }
    }
  }

  return target;
}

EventEmitter.prototype.addListener = function addListener(type, listener) {
  return _addListener(this, type, listener, false);
};

EventEmitter.prototype.on = EventEmitter.prototype.addListener;

EventEmitter.prototype.prependListener =
    function prependListener(type, listener) {
      return _addListener(this, type, listener, true);
    };

function onceWrapper() {
  if (!this.fired) {
    this.target.removeListener(this.type, this.wrapFn);
    this.fired = true;
    switch (arguments.length) {
      case 0:
        return this.listener.call(this.target);
      case 1:
        return this.listener.call(this.target, arguments[0]);
      case 2:
        return this.listener.call(this.target, arguments[0], arguments[1]);
      case 3:
        return this.listener.call(this.target, arguments[0], arguments[1],
            arguments[2]);
      default:
        var args = new Array(arguments.length);
        for (var i = 0; i < args.length; ++i)
          args[i] = arguments[i];
        this.listener.apply(this.target, args);
    }
  }
}

function _onceWrap(target, type, listener) {
  var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener };
  var wrapped = bind.call(onceWrapper, state);
  wrapped.listener = listener;
  state.wrapFn = wrapped;
  return wrapped;
}

EventEmitter.prototype.once = function once(type, listener) {
  if (typeof listener !== 'function')
    throw new TypeError('"listener" argument must be a function');
  this.on(type, _onceWrap(this, type, listener));
  return this;
};

EventEmitter.prototype.prependOnceListener =
    function prependOnceListener(type, listener) {
      if (typeof listener !== 'function')
        throw new TypeError('"listener" argument must be a function');
      this.prependListener(type, _onceWrap(this, type, listener));
      return this;
    };

// Emits a 'removeListener' event if and only if the listener was removed.
EventEmitter.prototype.removeListener =
    function removeListener(type, listener) {
      var list, events, position, i, originalListener;

      if (typeof listener !== 'function')
        throw new TypeError('"listener" argument must be a function');

      events = this._events;
      if (!events)
        return this;

      list = events[type];
      if (!list)
        return this;

      if (list === listener || list.listener === listener) {
        if (--this._eventsCount === 0)
          this._events = objectCreate(null);
        else {
          delete events[type];
          if (events.removeListener)
            this.emit('removeListener', type, list.listener || listener);
        }
      } else if (typeof list !== 'function') {
        position = -1;

        for (i = list.length - 1; i >= 0; i--) {
          if (list[i] === listener || list[i].listener === listener) {
            originalListener = list[i].listener;
            position = i;
            break;
          }
        }

        if (position < 0)
          return this;

        if (position === 0)
          list.shift();
        else
          spliceOne(list, position);

        if (list.length === 1)
          events[type] = list[0];

        if (events.removeListener)
          this.emit('removeListener', type, originalListener || listener);
      }

      return this;
    };

EventEmitter.prototype.removeAllListeners =
    function removeAllListeners(type) {
      var listeners, events, i;

      events = this._events;
      if (!events)
        return this;

      // not listening for removeListener, no need to emit
      if (!events.removeListener) {
        if (arguments.length === 0) {
          this._events = objectCreate(null);
          this._eventsCount = 0;
        } else if (events[type]) {
          if (--this._eventsCount === 0)
            this._events = objectCreate(null);
          else
            delete events[type];
        }
        return this;
      }

      // emit removeListener for all listeners on all events
      if (arguments.length === 0) {
        var keys = objectKeys(events);
        var key;
        for (i = 0; i < keys.length; ++i) {
          key = keys[i];
          if (key === 'removeListener') continue;
          this.removeAllListeners(key);
        }
        this.removeAllListeners('removeListener');
        this._events = objectCreate(null);
        this._eventsCount = 0;
        return this;
      }

      listeners = events[type];

      if (typeof listeners === 'function') {
        this.removeListener(type, listeners);
      } else if (listeners) {
        // LIFO order
        for (i = listeners.length - 1; i >= 0; i--) {
          this.removeListener(type, listeners[i]);
        }
      }

      return this;
    };

function _listeners(target, type, unwrap) {
  var events = target._events;

  if (!events)
    return [];

  var evlistener = events[type];
  if (!evlistener)
    return [];

  if (typeof evlistener === 'function')
    return unwrap ? [evlistener.listener || evlistener] : [evlistener];

  return unwrap ? unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length);
}

EventEmitter.prototype.listeners = function listeners(type) {
  return _listeners(this, type, true);
};

EventEmitter.prototype.rawListeners = function rawListeners(type) {
  return _listeners(this, type, false);
};

EventEmitter.listenerCount = function(emitter, type) {
  if (typeof emitter.listenerCount === 'function') {
    return emitter.listenerCount(type);
  } else {
    return listenerCount.call(emitter, type);
  }
};

EventEmitter.prototype.listenerCount = listenerCount;
function listenerCount(type) {
  var events = this._events;

  if (events) {
    var evlistener = events[type];

    if (typeof evlistener === 'function') {
      return 1;
    } else if (evlistener) {
      return evlistener.length;
    }
  }

  return 0;
}

EventEmitter.prototype.eventNames = function eventNames() {
  return this._eventsCount > 0 ? Reflect.ownKeys(this._events) : [];
};

// About 1.5x faster than the two-arg version of Array#splice().
function spliceOne(list, index) {
  for (var i = index, k = i + 1, n = list.length; k < n; i += 1, k += 1)
    list[i] = list[k];
  list.pop();
}

function arrayClone(arr, n) {
  var copy = new Array(n);
  for (var i = 0; i < n; ++i)
    copy[i] = arr[i];
  return copy;
}

function unwrapListeners(arr) {
  var ret = new Array(arr.length);
  for (var i = 0; i < ret.length; ++i) {
    ret[i] = arr[i].listener || arr[i];
  }
  return ret;
}

function objectCreatePolyfill(proto) {
  var F = function() {};
  F.prototype = proto;
  return new F;
}
function objectKeysPolyfill(obj) {
  var keys = [];
  for (var k in obj) if (Object.prototype.hasOwnProperty.call(obj, k)) {
    keys.push(k);
  }
  return k;
}
function functionBindPolyfill(context) {
  var fn = this;
  return function () {
    return fn.apply(context, arguments);
  };
}

},{}],297:[function(require,module,exports){
var http = require('http')
var url = require('url')

var https = module.exports

for (var key in http) {
  if (http.hasOwnProperty(key)) https[key] = http[key]
}

https.request = function (params, cb) {
  params = validateParams(params)
  return http.request.call(this, params, cb)
}

https.get = function (params, cb) {
  params = validateParams(params)
  return http.get.call(this, params, cb)
}

function validateParams (params) {
  if (typeof params === 'string') {
    params = url.parse(params)
  }
  if (!params.protocol) {
    params.protocol = 'https:'
  }
  if (params.protocol !== 'https:') {
    throw new Error('Protocol "' + params.protocol + '" not supported. Expected "https:"')
  }
  return params
}

},{"http":80,"url":393}],298:[function(require,module,exports){
/*!
 * humanize-ms - index.js
 * Copyright(c) 2014 dead_horse <dead_horse@qq.com>
 * MIT Licensed
 */

'use strict';

/**
 * Module dependencies.
 */

var util = require('util');
var ms = require('ms');

module.exports = function (t) {
  if (typeof t === 'number') return t;
  var r = ms(t);
  if (r === undefined) {
    var err = new Error(util.format('humanize-ms(%j) result undefined', t));
    console.warn(err.stack);
  }
  return r;
};

},{"ms":314,"util":345}],299:[function(require,module,exports){
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
  var e, m
  var eLen = (nBytes * 8) - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var nBits = -7
  var i = isLE ? (nBytes - 1) : 0
  var d = isLE ? -1 : 1
  var s = buffer[offset + i]

  i += d

  e = s & ((1 << (-nBits)) - 1)
  s >>= (-nBits)
  nBits += eLen
  for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}

  m = e & ((1 << (-nBits)) - 1)
  e >>= (-nBits)
  nBits += mLen
  for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}

  if (e === 0) {
    e = 1 - eBias
  } else if (e === eMax) {
    return m ? NaN : ((s ? -1 : 1) * Infinity)
  } else {
    m = m + Math.pow(2, mLen)
    e = e - eBias
  }
  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}

exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
  var e, m, c
  var eLen = (nBytes * 8) - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
  var i = isLE ? 0 : (nBytes - 1)
  var d = isLE ? 1 : -1
  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0

  value = Math.abs(value)

  if (isNaN(value) || value === Infinity) {
    m = isNaN(value) ? 1 : 0
    e = eMax
  } else {
    e = Math.floor(Math.log(value) / Math.LN2)
    if (value * (c = Math.pow(2, -e)) < 1) {
      e--
      c *= 2
    }
    if (e + eBias >= 1) {
      value += rt / c
    } else {
      value += rt * Math.pow(2, 1 - eBias)
    }
    if (value * c >= 2) {
      e++
      c /= 2
    }

    if (e + eBias >= eMax) {
      m = 0
      e = eMax
    } else if (e + eBias >= 1) {
      m = ((value * c) - 1) * Math.pow(2, mLen)
      e = e + eBias
    } else {
      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
      e = 0
    }
  }

  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}

  e = (e << mLen) | m
  eLen += mLen
  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}

  buffer[offset + i - d] |= s * 128
}

},{}],300:[function(require,module,exports){
'use strict';
var types = [
  require('./nextTick'),
  require('./queueMicrotask'),
  require('./mutation.js'),
  require('./messageChannel'),
  require('./stateChange'),
  require('./timeout')
];
var draining;
var currentQueue;
var queueIndex = -1;
var queue = [];
var scheduled = false;
function cleanUpNextTick() {
  if (!draining || !currentQueue) {
    return;
  }
  draining = false;
  if (currentQueue.length) {
    queue = currentQueue.concat(queue);
  } else {
    queueIndex = -1;
  }
  if (queue.length) {
    nextTick();
  }
}

//named nextTick for less confusing stack traces
function nextTick() {
  if (draining) {
    return;
  }
  scheduled = false;
  draining = true;
  var len = queue.length;
  var timeout = setTimeout(cleanUpNextTick);
  while (len) {
    currentQueue = queue;
    queue = [];
    while (currentQueue && ++queueIndex < len) {
      currentQueue[queueIndex].run();
    }
    queueIndex = -1;
    len = queue.length;
  }
  currentQueue = null;
  queueIndex = -1;
  draining = false;
  clearTimeout(timeout);
}
var scheduleDrain;
var i = -1;
var len = types.length;
while (++i < len) {
  if (types[i] && types[i].test && types[i].test()) {
    scheduleDrain = types[i].install(nextTick);
    break;
  }
}
// v8 likes predictible objects
function Item(fun, array) {
  this.fun = fun;
  this.array = array;
}
Item.prototype.run = function () {
  var fun = this.fun;
  var array = this.array;
  switch (array.length) {
  case 0:
    return fun();
  case 1:
    return fun(array[0]);
  case 2:
    return fun(array[0], array[1]);
  case 3:
    return fun(array[0], array[1], array[2]);
  default:
    return fun.apply(null, array);
  }

};
module.exports = immediate;
function immediate(task) {
  var args = new Array(arguments.length - 1);
  if (arguments.length > 1) {
    for (var i = 1; i < arguments.length; i++) {
      args[i - 1] = arguments[i];
    }
  }
  queue.push(new Item(task, args));
  if (!scheduled && !draining) {
    scheduled = true;
    scheduleDrain();
  }
}

},{"./messageChannel":301,"./mutation.js":302,"./nextTick":79,"./queueMicrotask":303,"./stateChange":304,"./timeout":305}],301:[function(require,module,exports){
(function (global){
'use strict';

exports.test = function () {
  if (global.setImmediate) {
    // we can only get here in IE10
    // which doesn't handel postMessage well
    return false;
  }
  return typeof global.MessageChannel !== 'undefined';
};

exports.install = function (func) {
  var channel = new global.MessageChannel();
  channel.port1.onmessage = func;
  return function () {
    channel.port2.postMessage(0);
  };
};
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],302:[function(require,module,exports){
(function (global){
'use strict';
//based off rsvp https://github.com/tildeio/rsvp.js
//license https://github.com/tildeio/rsvp.js/blob/master/LICENSE
//https://github.com/tildeio/rsvp.js/blob/master/lib/rsvp/asap.js

var Mutation = global.MutationObserver || global.WebKitMutationObserver;

exports.test = function () {
  return Mutation;
};

exports.install = function (handle) {
  var called = 0;
  var observer = new Mutation(handle);
  var element = global.document.createTextNode('');
  observer.observe(element, {
    characterData: true
  });
  return function () {
    element.data = (called = ++called % 2);
  };
};
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],303:[function(require,module,exports){
(function (global){
'use strict';
exports.test = function () {
  return typeof global.queueMicrotask === 'function';
};

exports.install = function (func) {
  return function () {
    global.queueMicrotask(func);
  };
};

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],304:[function(require,module,exports){
(function (global){
'use strict';

exports.test = function () {
  return 'document' in global && 'onreadystatechange' in global.document.createElement('script');
};

exports.install = function (handle) {
  return function () {

    // Create a <script> element; its readystatechange event will be fired asynchronously once it is inserted
    // into the document. Do so, thus queuing up the task. Remember to clean up once it's been called.
    var scriptEl = global.document.createElement('script');
    scriptEl.onreadystatechange = function () {
      handle();

      scriptEl.onreadystatechange = null;
      scriptEl.parentNode.removeChild(scriptEl);
      scriptEl = null;
    };
    global.document.documentElement.appendChild(scriptEl);

    return handle;
  };
};
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],305:[function(require,module,exports){
'use strict';
exports.test = function () {
  return true;
};

exports.install = function (t) {
  return function () {
    setTimeout(t, 0);
  };
};
},{}],306:[function(require,module,exports){
if (typeof Object.create === 'function') {
  // implementation from standard node.js 'util' module
  module.exports = function inherits(ctor, superCtor) {
    if (superCtor) {
      ctor.super_ = superCtor
      ctor.prototype = Object.create(superCtor.prototype, {
        constructor: {
          value: ctor,
          enumerable: false,
          writable: true,
          configurable: true
        }
      })
    }
  };
} else {
  // old school shim for old browsers
  module.exports = function inherits(ctor, superCtor) {
    if (superCtor) {
      ctor.super_ = superCtor
      var TempCtor = function () {}
      TempCtor.prototype = superCtor.prototype
      ctor.prototype = new TempCtor()
      ctor.prototype.constructor = ctor
    }
  }
}

},{}],307:[function(require,module,exports){
/*!
 * Determine if an object is a Buffer
 *
 * @author   Feross Aboukhadijeh <https://feross.org>
 * @license  MIT
 */

// The _isBuffer check is for Safari 5-7 support, because it's missing
// Object.prototype.constructor. Remove this eventually
module.exports = function (obj) {
  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
}

function isBuffer (obj) {
  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
}

// For Node v0.10 support. Remove this eventually.
function isSlowBuffer (obj) {
  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
}

},{}],308:[function(require,module,exports){
var toString = {}.toString;

module.exports = Array.isArray || function (arr) {
  return toString.call(arr) == '[object Array]';
};

},{}],309:[function(require,module,exports){
(function (global){
/*
 *  base64.js
 *
 *  Licensed under the BSD 3-Clause License.
 *    http://opensource.org/licenses/BSD-3-Clause
 *
 *  References:
 *    http://en.wikipedia.org/wiki/Base64
 */
;(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined'
        ? module.exports = factory(global)
        : typeof define === 'function' && define.amd
        ? define(factory) : factory(global)
}((
    typeof self !== 'undefined' ? self
        : typeof window !== 'undefined' ? window
        : typeof global !== 'undefined' ? global
: this
), function(global) {
    'use strict';
    // existing version for noConflict()
    global = global || {};
    var _Base64 = global.Base64;
    var version = "2.5.2";
    // if node.js and NOT React Native, we use Buffer
    var buffer;
    if (typeof module !== 'undefined' && module.exports) {
        try {
            buffer = eval("require('buffer').Buffer");
        } catch (err) {
            buffer = undefined;
        }
    }
    // constants
    var b64chars
        = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
    var b64tab = function(bin) {
        var t = {};
        for (var i = 0, l = bin.length; i < l; i++) t[bin.charAt(i)] = i;
        return t;
    }(b64chars);
    var fromCharCode = String.fromCharCode;
    // encoder stuff
    var cb_utob = function(c) {
        if (c.length < 2) {
            var cc = c.charCodeAt(0);
            return cc < 0x80 ? c
                : cc < 0x800 ? (fromCharCode(0xc0 | (cc >>> 6))
                                + fromCharCode(0x80 | (cc & 0x3f)))
                : (fromCharCode(0xe0 | ((cc >>> 12) & 0x0f))
                    + fromCharCode(0x80 | ((cc >>>  6) & 0x3f))
                    + fromCharCode(0x80 | ( cc         & 0x3f)));
        } else {
            var cc = 0x10000
                + (c.charCodeAt(0) - 0xD800) * 0x400
                + (c.charCodeAt(1) - 0xDC00);
            return (fromCharCode(0xf0 | ((cc >>> 18) & 0x07))
                    + fromCharCode(0x80 | ((cc >>> 12) & 0x3f))
                    + fromCharCode(0x80 | ((cc >>>  6) & 0x3f))
                    + fromCharCode(0x80 | ( cc         & 0x3f)));
        }
    };
    var re_utob = /[\uD800-\uDBFF][\uDC00-\uDFFFF]|[^\x00-\x7F]/g;
    var utob = function(u) {
        return u.replace(re_utob, cb_utob);
    };
    var cb_encode = function(ccc) {
        var padlen = [0, 2, 1][ccc.length % 3],
        ord = ccc.charCodeAt(0) << 16
            | ((ccc.length > 1 ? ccc.charCodeAt(1) : 0) << 8)
            | ((ccc.length > 2 ? ccc.charCodeAt(2) : 0)),
        chars = [
            b64chars.charAt( ord >>> 18),
            b64chars.charAt((ord >>> 12) & 63),
            padlen >= 2 ? '=' : b64chars.charAt((ord >>> 6) & 63),
            padlen >= 1 ? '=' : b64chars.charAt(ord & 63)
        ];
        return chars.join('');
    };
    var btoa = global.btoa ? function(b) {
        return global.btoa(b);
    } : function(b) {
        return b.replace(/[\s\S]{1,3}/g, cb_encode);
    };
    var _encode = function(u) {
        var isUint8Array = Object.prototype.toString.call(u) === '[object Uint8Array]';
        return isUint8Array ? u.toString('base64')
            : btoa(utob(String(u)));
    }
    var encode = function(u, urisafe) {
        return !urisafe
            ? _encode(u)
            : _encode(String(u)).replace(/[+\/]/g, function(m0) {
                return m0 == '+' ? '-' : '_';
            }).replace(/=/g, '');
    };
    var encodeURI = function(u) { return encode(u, true) };
    // decoder stuff
    var re_btou = /[\xC0-\xDF][\x80-\xBF]|[\xE0-\xEF][\x80-\xBF]{2}|[\xF0-\xF7][\x80-\xBF]{3}/g;
    var cb_btou = function(cccc) {
        switch(cccc.length) {
        case 4:
            var cp = ((0x07 & cccc.charCodeAt(0)) << 18)
                |    ((0x3f & cccc.charCodeAt(1)) << 12)
                |    ((0x3f & cccc.charCodeAt(2)) <<  6)
                |     (0x3f & cccc.charCodeAt(3)),
            offset = cp - 0x10000;
            return (fromCharCode((offset  >>> 10) + 0xD800)
                    + fromCharCode((offset & 0x3FF) + 0xDC00));
        case 3:
            return fromCharCode(
                ((0x0f & cccc.charCodeAt(0)) << 12)
                    | ((0x3f & cccc.charCodeAt(1)) << 6)
                    |  (0x3f & cccc.charCodeAt(2))
            );
        default:
            return  fromCharCode(
                ((0x1f & cccc.charCodeAt(0)) << 6)
                    |  (0x3f & cccc.charCodeAt(1))
            );
        }
    };
    var btou = function(b) {
        return b.replace(re_btou, cb_btou);
    };
    var cb_decode = function(cccc) {
        var len = cccc.length,
        padlen = len % 4,
        n = (len > 0 ? b64tab[cccc.charAt(0)] << 18 : 0)
            | (len > 1 ? b64tab[cccc.charAt(1)] << 12 : 0)
            | (len > 2 ? b64tab[cccc.charAt(2)] <<  6 : 0)
            | (len > 3 ? b64tab[cccc.charAt(3)]       : 0),
        chars = [
            fromCharCode( n >>> 16),
            fromCharCode((n >>>  8) & 0xff),
            fromCharCode( n         & 0xff)
        ];
        chars.length -= [0, 0, 2, 1][padlen];
        return chars.join('');
    };
    var _atob = global.atob ? function(a) {
        return global.atob(a);
    } : function(a){
        return a.replace(/\S{1,4}/g, cb_decode);
    };
    var atob = function(a) {
        return _atob(String(a).replace(/[^A-Za-z0-9\+\/]/g, ''));
    };
    var _decode = buffer ?
        buffer.from && Uint8Array && buffer.from !== Uint8Array.from
        ? function(a) {
            return (a.constructor === buffer.constructor
                    ? a : buffer.from(a, 'base64')).toString();
        }
        : function(a) {
            return (a.constructor === buffer.constructor
                    ? a : new buffer(a, 'base64')).toString();
        }
        : function(a) { return btou(_atob(a)) };
    var decode = function(a){
        return _decode(
            String(a).replace(/[-_]/g, function(m0) { return m0 == '-' ? '+' : '/' })
                .replace(/[^A-Za-z0-9\+\/]/g, '')
        );
    };
    var noConflict = function() {
        var Base64 = global.Base64;
        global.Base64 = _Base64;
        return Base64;
    };
    // export Base64
    global.Base64 = {
        VERSION: version,
        atob: atob,
        btoa: btoa,
        fromBase64: decode,
        toBase64: encode,
        utob: utob,
        encode: encode,
        encodeURI: encodeURI,
        btou: btou,
        decode: decode,
        noConflict: noConflict,
        __buffer__: buffer
    };
    // if ES5 is available, make Base64.extendString() available
    if (typeof Object.defineProperty === 'function') {
        var noEnum = function(v){
            return {value:v,enumerable:false,writable:true,configurable:true};
        };
        global.Base64.extendString = function () {
            Object.defineProperty(
                String.prototype, 'fromBase64', noEnum(function () {
                    return decode(this)
                }));
            Object.defineProperty(
                String.prototype, 'toBase64', noEnum(function (urisafe) {
                    return encode(this, urisafe)
                }));
            Object.defineProperty(
                String.prototype, 'toBase64URI', noEnum(function () {
                    return encode(this, true)
                }));
        };
    }
    //
    // export Base64 to the namespace
    //
    if (global['Meteor']) { // Meteor.js
        Base64 = global.Base64;
    }
    // module.exports and AMD are mutually exclusive.
    // module.exports has precedence.
    if (typeof module !== 'undefined' && module.exports) {
        module.exports.Base64 = global.Base64;
    }
    else if (typeof define === 'function' && define.amd) {
        // AMD. Register as an anonymous module.
        define([], function(){ return global.Base64 });
    }
    // that's it!
    return {Base64: global.Base64}
}));


}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],310:[function(require,module,exports){
/*!
 * merge-descriptors
 * Copyright(c) 2014 Jonathan Ong
 * Copyright(c) 2015 Douglas Christopher Wilson
 * MIT Licensed
 */

'use strict'

/**
 * Module exports.
 * @public
 */

module.exports = merge

/**
 * Module variables.
 * @private
 */

var hasOwnProperty = Object.prototype.hasOwnProperty

/**
 * Merge the property descriptors of `src` into `dest`
 *
 * @param {object} dest Object to add descriptors to
 * @param {object} src Object to clone descriptors from
 * @param {boolean} [redefine=true] Redefine `dest` properties with `src` properties
 * @returns {object} Reference to dest
 * @public
 */

function merge(dest, src, redefine) {
  if (!dest) {
    throw new TypeError('argument dest is required')
  }

  if (!src) {
    throw new TypeError('argument src is required')
  }

  if (redefine === undefined) {
    // Default to true
    redefine = true
  }

  Object.getOwnPropertyNames(src).forEach(function forEachOwnPropertyName(name) {
    if (!redefine && hasOwnProperty.call(dest, name)) {
      // Skip desriptor
      return
    }

    // Copy descriptor
    var descriptor = Object.getOwnPropertyDescriptor(src, name)
    Object.defineProperty(dest, name, descriptor)
  })

  return dest
}

},{}],311:[function(require,module,exports){
'use strict';

/**
 * @param typeMap [Object] Map of MIME type -> Array[extensions]
 * @param ...
 */
function Mime() {
  this._types = Object.create(null);
  this._extensions = Object.create(null);

  for (var i = 0; i < arguments.length; i++) {
    this.define(arguments[i]);
  }

  this.define = this.define.bind(this);
  this.getType = this.getType.bind(this);
  this.getExtension = this.getExtension.bind(this);
}

/**
 * Define mimetype -> extension mappings.  Each key is a mime-type that maps
 * to an array of extensions associated with the type.  The first extension is
 * used as the default extension for the type.
 *
 * e.g. mime.define({'audio/ogg', ['oga', 'ogg', 'spx']});
 *
 * If a type declares an extension that has already been defined, an error will
 * be thrown.  To suppress this error and force the extension to be associated
 * with the new type, pass `force`=true.  Alternatively, you may prefix the
 * extension with "*" to map the type to extension, without mapping the
 * extension to the type.
 *
 * e.g. mime.define({'audio/wav', ['wav']}, {'audio/x-wav', ['*wav']});
 *
 *
 * @param map (Object) type definitions
 * @param force (Boolean) if true, force overriding of existing definitions
 */
Mime.prototype.define = function(typeMap, force) {
  for (var type in typeMap) {
    var extensions = typeMap[type].map(function(t) {return t.toLowerCase()});
    type = type.toLowerCase();

    for (var i = 0; i < extensions.length; i++) {
      var ext = extensions[i];

      // '*' prefix = not the preferred type for this extension.  So fixup the
      // extension, and skip it.
      if (ext[0] == '*') {
        continue;
      }

      if (!force && (ext in this._types)) {
        throw new Error(
          'Attempt to change mapping for "' + ext +
          '" extension from "' + this._types[ext] + '" to "' + type +
          '". Pass `force=true` to allow this, otherwise remove "' + ext +
          '" from the list of extensions for "' + type + '".'
        );
      }

      this._types[ext] = type;
    }

    // Use first extension as default
    if (force || !this._extensions[type]) {
      var ext = extensions[0];
      this._extensions[type] = (ext[0] != '*') ? ext : ext.substr(1)
    }
  }
};

/**
 * Lookup a mime type based on extension
 */
Mime.prototype.getType = function(path) {
  path = String(path);
  var last = path.replace(/^.*[/\\]/, '').toLowerCase();
  var ext = last.replace(/^.*\./, '').toLowerCase();

  var hasPath = last.length < path.length;
  var hasDot = ext.length < last.length - 1;

  return (hasDot || !hasPath) && this._types[ext] || null;
};

/**
 * Return file extension associated with a mime type
 */
Mime.prototype.getExtension = function(type) {
  type = /^\s*([^;\s]*)/.test(type) && RegExp.$1;
  return type && this._extensions[type.toLowerCase()] || null;
};

module.exports = Mime;

},{}],312:[function(require,module,exports){
'use strict';

var Mime = require('./Mime');
module.exports = new Mime(require('./types/standard'));

},{"./Mime":311,"./types/standard":313}],313:[function(require,module,exports){
module.exports = {"application/andrew-inset":["ez"],"application/applixware":["aw"],"application/atom+xml":["atom"],"application/atomcat+xml":["atomcat"],"application/atomdeleted+xml":["atomdeleted"],"application/atomsvc+xml":["atomsvc"],"application/atsc-dwd+xml":["dwd"],"application/atsc-held+xml":["held"],"application/atsc-rsat+xml":["rsat"],"application/bdoc":["bdoc"],"application/calendar+xml":["xcs"],"application/ccxml+xml":["ccxml"],"application/cdfx+xml":["cdfx"],"application/cdmi-capability":["cdmia"],"application/cdmi-container":["cdmic"],"application/cdmi-domain":["cdmid"],"application/cdmi-object":["cdmio"],"application/cdmi-queue":["cdmiq"],"application/cu-seeme":["cu"],"application/dash+xml":["mpd"],"application/davmount+xml":["davmount"],"application/docbook+xml":["dbk"],"application/dssc+der":["dssc"],"application/dssc+xml":["xdssc"],"application/ecmascript":["ecma","es"],"application/emma+xml":["emma"],"application/emotionml+xml":["emotionml"],"application/epub+zip":["epub"],"application/exi":["exi"],"application/fdt+xml":["fdt"],"application/font-tdpfr":["pfr"],"application/geo+json":["geojson"],"application/gml+xml":["gml"],"application/gpx+xml":["gpx"],"application/gxf":["gxf"],"application/gzip":["gz"],"application/hjson":["hjson"],"application/hyperstudio":["stk"],"application/inkml+xml":["ink","inkml"],"application/ipfix":["ipfix"],"application/its+xml":["its"],"application/java-archive":["jar","war","ear"],"application/java-serialized-object":["ser"],"application/java-vm":["class"],"application/javascript":["js","mjs"],"application/json":["json","map"],"application/json5":["json5"],"application/jsonml+json":["jsonml"],"application/ld+json":["jsonld"],"application/lgr+xml":["lgr"],"application/lost+xml":["lostxml"],"application/mac-binhex40":["hqx"],"application/mac-compactpro":["cpt"],"application/mads+xml":["mads"],"application/manifest+json":["webmanifest"],"application/marc":["mrc"],"application/marcxml+xml":["mrcx"],"application/mathematica":["ma","nb","mb"],"application/mathml+xml":["mathml"],"application/mbox":["mbox"],"application/mediaservercontrol+xml":["mscml"],"application/metalink+xml":["metalink"],"application/metalink4+xml":["meta4"],"application/mets+xml":["mets"],"application/mmt-aei+xml":["maei"],"application/mmt-usd+xml":["musd"],"application/mods+xml":["mods"],"application/mp21":["m21","mp21"],"application/mp4":["mp4s","m4p"],"application/mrb-consumer+xml":["*xdf"],"application/mrb-publish+xml":["*xdf"],"application/msword":["doc","dot"],"application/mxf":["mxf"],"application/n-quads":["nq"],"application/n-triples":["nt"],"application/node":["cjs"],"application/octet-stream":["bin","dms","lrf","mar","so","dist","distz","pkg","bpk","dump","elc","deploy","exe","dll","deb","dmg","iso","img","msi","msp","msm","buffer"],"application/oda":["oda"],"application/oebps-package+xml":["opf"],"application/ogg":["ogx"],"application/omdoc+xml":["omdoc"],"application/onenote":["onetoc","onetoc2","onetmp","onepkg"],"application/oxps":["oxps"],"application/p2p-overlay+xml":["relo"],"application/patch-ops-error+xml":["*xer"],"application/pdf":["pdf"],"application/pgp-encrypted":["pgp"],"application/pgp-signature":["asc","sig"],"application/pics-rules":["prf"],"application/pkcs10":["p10"],"application/pkcs7-mime":["p7m","p7c"],"application/pkcs7-signature":["p7s"],"application/pkcs8":["p8"],"application/pkix-attr-cert":["ac"],"application/pkix-cert":["cer"],"application/pkix-crl":["crl"],"application/pkix-pkipath":["pkipath"],"application/pkixcmp":["pki"],"application/pls+xml":["pls"],"application/postscript":["ai","eps","ps"],"application/provenance+xml":["provx"],"application/pskc+xml":["pskcxml"],"application/raml+yaml":["raml"],"application/rdf+xml":["rdf","owl"],"application/reginfo+xml":["rif"],"application/relax-ng-compact-syntax":["rnc"],"application/resource-lists+xml":["rl"],"application/resource-lists-diff+xml":["rld"],"application/rls-services+xml":["rs"],"application/route-apd+xml":["rapd"],"application/route-s-tsid+xml":["sls"],"application/route-usd+xml":["rusd"],"application/rpki-ghostbusters":["gbr"],"application/rpki-manifest":["mft"],"application/rpki-roa":["roa"],"application/rsd+xml":["rsd"],"application/rss+xml":["rss"],"application/rtf":["rtf"],"application/sbml+xml":["sbml"],"application/scvp-cv-request":["scq"],"application/scvp-cv-response":["scs"],"application/scvp-vp-request":["spq"],"application/scvp-vp-response":["spp"],"application/sdp":["sdp"],"application/senml+xml":["senmlx"],"application/sensml+xml":["sensmlx"],"application/set-payment-initiation":["setpay"],"application/set-registration-initiation":["setreg"],"application/shf+xml":["shf"],"application/sieve":["siv","sieve"],"application/smil+xml":["smi","smil"],"application/sparql-query":["rq"],"application/sparql-results+xml":["srx"],"application/srgs":["gram"],"application/srgs+xml":["grxml"],"application/sru+xml":["sru"],"application/ssdl+xml":["ssdl"],"application/ssml+xml":["ssml"],"application/swid+xml":["swidtag"],"application/tei+xml":["tei","teicorpus"],"application/thraud+xml":["tfi"],"application/timestamped-data":["tsd"],"application/toml":["toml"],"application/ttml+xml":["ttml"],"application/urc-ressheet+xml":["rsheet"],"application/voicexml+xml":["vxml"],"application/wasm":["wasm"],"application/widget":["wgt"],"application/winhlp":["hlp"],"application/wsdl+xml":["wsdl"],"application/wspolicy+xml":["wspolicy"],"application/xaml+xml":["xaml"],"application/xcap-att+xml":["xav"],"application/xcap-caps+xml":["xca"],"application/xcap-diff+xml":["xdf"],"application/xcap-el+xml":["xel"],"application/xcap-error+xml":["xer"],"application/xcap-ns+xml":["xns"],"application/xenc+xml":["xenc"],"application/xhtml+xml":["xhtml","xht"],"application/xliff+xml":["xlf"],"application/xml":["xml","xsl","xsd","rng"],"application/xml-dtd":["dtd"],"application/xop+xml":["xop"],"application/xproc+xml":["xpl"],"application/xslt+xml":["xslt"],"application/xspf+xml":["xspf"],"application/xv+xml":["mxml","xhvml","xvml","xvm"],"application/yang":["yang"],"application/yin+xml":["yin"],"application/zip":["zip"],"audio/3gpp":["*3gpp"],"audio/adpcm":["adp"],"audio/basic":["au","snd"],"audio/midi":["mid","midi","kar","rmi"],"audio/mobile-xmf":["mxmf"],"audio/mp3":["*mp3"],"audio/mp4":["m4a","mp4a"],"audio/mpeg":["mpga","mp2","mp2a","mp3","m2a","m3a"],"audio/ogg":["oga","ogg","spx"],"audio/s3m":["s3m"],"audio/silk":["sil"],"audio/wav":["wav"],"audio/wave":["*wav"],"audio/webm":["weba"],"audio/xm":["xm"],"font/collection":["ttc"],"font/otf":["otf"],"font/ttf":["ttf"],"font/woff":["woff"],"font/woff2":["woff2"],"image/aces":["exr"],"image/apng":["apng"],"image/bmp":["bmp"],"image/cgm":["cgm"],"image/dicom-rle":["drle"],"image/emf":["emf"],"image/fits":["fits"],"image/g3fax":["g3"],"image/gif":["gif"],"image/heic":["heic"],"image/heic-sequence":["heics"],"image/heif":["heif"],"image/heif-sequence":["heifs"],"image/hej2k":["hej2"],"image/hsj2":["hsj2"],"image/ief":["ief"],"image/jls":["jls"],"image/jp2":["jp2","jpg2"],"image/jpeg":["jpeg","jpg","jpe"],"image/jph":["jph"],"image/jphc":["jhc"],"image/jpm":["jpm"],"image/jpx":["jpx","jpf"],"image/jxr":["jxr"],"image/jxra":["jxra"],"image/jxrs":["jxrs"],"image/jxs":["jxs"],"image/jxsc":["jxsc"],"image/jxsi":["jxsi"],"image/jxss":["jxss"],"image/ktx":["ktx"],"image/png":["png"],"image/sgi":["sgi"],"image/svg+xml":["svg","svgz"],"image/t38":["t38"],"image/tiff":["tif","tiff"],"image/tiff-fx":["tfx"],"image/webp":["webp"],"image/wmf":["wmf"],"message/disposition-notification":["disposition-notification"],"message/global":["u8msg"],"message/global-delivery-status":["u8dsn"],"message/global-disposition-notification":["u8mdn"],"message/global-headers":["u8hdr"],"message/rfc822":["eml","mime"],"model/3mf":["3mf"],"model/gltf+json":["gltf"],"model/gltf-binary":["glb"],"model/iges":["igs","iges"],"model/mesh":["msh","mesh","silo"],"model/mtl":["mtl"],"model/obj":["obj"],"model/stl":["stl"],"model/vrml":["wrl","vrml"],"model/x3d+binary":["*x3db","x3dbz"],"model/x3d+fastinfoset":["x3db"],"model/x3d+vrml":["*x3dv","x3dvz"],"model/x3d+xml":["x3d","x3dz"],"model/x3d-vrml":["x3dv"],"text/cache-manifest":["appcache","manifest"],"text/calendar":["ics","ifb"],"text/coffeescript":["coffee","litcoffee"],"text/css":["css"],"text/csv":["csv"],"text/html":["html","htm","shtml"],"text/jade":["jade"],"text/jsx":["jsx"],"text/less":["less"],"text/markdown":["markdown","md"],"text/mathml":["mml"],"text/mdx":["mdx"],"text/n3":["n3"],"text/plain":["txt","text","conf","def","list","log","in","ini"],"text/richtext":["rtx"],"text/rtf":["*rtf"],"text/sgml":["sgml","sgm"],"text/shex":["shex"],"text/slim":["slim","slm"],"text/stylus":["stylus","styl"],"text/tab-separated-values":["tsv"],"text/troff":["t","tr","roff","man","me","ms"],"text/turtle":["ttl"],"text/uri-list":["uri","uris","urls"],"text/vcard":["vcard"],"text/vtt":["vtt"],"text/xml":["*xml"],"text/yaml":["yaml","yml"],"video/3gpp":["3gp","3gpp"],"video/3gpp2":["3g2"],"video/h261":["h261"],"video/h263":["h263"],"video/h264":["h264"],"video/jpeg":["jpgv"],"video/jpm":["*jpm","jpgm"],"video/mj2":["mj2","mjp2"],"video/mp2t":["ts"],"video/mp4":["mp4","mp4v","mpg4"],"video/mpeg":["mpeg","mpg","mpe","m1v","m2v"],"video/ogg":["ogv"],"video/quicktime":["qt","mov"],"video/webm":["webm"]};
},{}],314:[function(require,module,exports){
/**
 * Helpers.
 */

var s = 1000;
var m = s * 60;
var h = m * 60;
var d = h * 24;
var w = d * 7;
var y = d * 365.25;

/**
 * Parse or format the given `val`.
 *
 * Options:
 *
 *  - `long` verbose formatting [false]
 *
 * @param {String|Number} val
 * @param {Object} [options]
 * @throws {Error} throw an error if val is not a non-empty string or a number
 * @return {String|Number}
 * @api public
 */

module.exports = function(val, options) {
  options = options || {};
  var type = typeof val;
  if (type === 'string' && val.length > 0) {
    return parse(val);
  } else if (type === 'number' && isFinite(val)) {
    return options.long ? fmtLong(val) : fmtShort(val);
  }
  throw new Error(
    'val is not a non-empty string or a valid number. val=' +
      JSON.stringify(val)
  );
};

/**
 * Parse the given `str` and return milliseconds.
 *
 * @param {String} str
 * @return {Number}
 * @api private
 */

function parse(str) {
  str = String(str);
  if (str.length > 100) {
    return;
  }
  var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(
    str
  );
  if (!match) {
    return;
  }
  var n = parseFloat(match[1]);
  var type = (match[2] || 'ms').toLowerCase();
  switch (type) {
    case 'years':
    case 'year':
    case 'yrs':
    case 'yr':
    case 'y':
      return n * y;
    case 'weeks':
    case 'week':
    case 'w':
      return n * w;
    case 'days':
    case 'day':
    case 'd':
      return n * d;
    case 'hours':
    case 'hour':
    case 'hrs':
    case 'hr':
    case 'h':
      return n * h;
    case 'minutes':
    case 'minute':
    case 'mins':
    case 'min':
    case 'm':
      return n * m;
    case 'seconds':
    case 'second':
    case 'secs':
    case 'sec':
    case 's':
      return n * s;
    case 'milliseconds':
    case 'millisecond':
    case 'msecs':
    case 'msec':
    case 'ms':
      return n;
    default:
      return undefined;
  }
}

/**
 * Short format for `ms`.
 *
 * @param {Number} ms
 * @return {String}
 * @api private
 */

function fmtShort(ms) {
  var msAbs = Math.abs(ms);
  if (msAbs >= d) {
    return Math.round(ms / d) + 'd';
  }
  if (msAbs >= h) {
    return Math.round(ms / h) + 'h';
  }
  if (msAbs >= m) {
    return Math.round(ms / m) + 'm';
  }
  if (msAbs >= s) {
    return Math.round(ms / s) + 's';
  }
  return ms + 'ms';
}

/**
 * Long format for `ms`.
 *
 * @param {Number} ms
 * @return {String}
 * @api private
 */

function fmtLong(ms) {
  var msAbs = Math.abs(ms);
  if (msAbs >= d) {
    return plural(ms, msAbs, d, 'day');
  }
  if (msAbs >= h) {
    return plural(ms, msAbs, h, 'hour');
  }
  if (msAbs >= m) {
    return plural(ms, msAbs, m, 'minute');
  }
  if (msAbs >= s) {
    return plural(ms, msAbs, s, 'second');
  }
  return ms + ' ms';
}

/**
 * Pluralization helper.
 */

function plural(ms, msAbs, n, name) {
  var isPlural = msAbs >= n * 1.5;
  return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
}

},{}],315:[function(require,module,exports){
(function (process){
// .dirname, .basename, and .extname methods are extracted from Node.js v8.11.1,
// backported and transplited with Babel, with backwards-compat fixes

// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// resolves . and .. elements in a path array with directory names there
// must be no slashes, empty elements, or device names (c:\) in the array
// (so also no leading and trailing slashes - it does not distinguish
// relative and absolute paths)
function normalizeArray(parts, allowAboveRoot) {
  // if the path tries to go above the root, `up` ends up > 0
  var up = 0;
  for (var i = parts.length - 1; i >= 0; i--) {
    var last = parts[i];
    if (last === '.') {
      parts.splice(i, 1);
    } else if (last === '..') {
      parts.splice(i, 1);
      up++;
    } else if (up) {
      parts.splice(i, 1);
      up--;
    }
  }

  // if the path is allowed to go above the root, restore leading ..s
  if (allowAboveRoot) {
    for (; up--; up) {
      parts.unshift('..');
    }
  }

  return parts;
}

// path.resolve([from ...], to)
// posix version
exports.resolve = function() {
  var resolvedPath = '',
      resolvedAbsolute = false;

  for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
    var path = (i >= 0) ? arguments[i] : process.cwd();

    // Skip empty and invalid entries
    if (typeof path !== 'string') {
      throw new TypeError('Arguments to path.resolve must be strings');
    } else if (!path) {
      continue;
    }

    resolvedPath = path + '/' + resolvedPath;
    resolvedAbsolute = path.charAt(0) === '/';
  }

  // At this point the path should be resolved to a full absolute path, but
  // handle relative paths to be safe (might happen when process.cwd() fails)

  // Normalize the path
  resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function(p) {
    return !!p;
  }), !resolvedAbsolute).join('/');

  return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
};

// path.normalize(path)
// posix version
exports.normalize = function(path) {
  var isAbsolute = exports.isAbsolute(path),
      trailingSlash = substr(path, -1) === '/';

  // Normalize the path
  path = normalizeArray(filter(path.split('/'), function(p) {
    return !!p;
  }), !isAbsolute).join('/');

  if (!path && !isAbsolute) {
    path = '.';
  }
  if (path && trailingSlash) {
    path += '/';
  }

  return (isAbsolute ? '/' : '') + path;
};

// posix version
exports.isAbsolute = function(path) {
  return path.charAt(0) === '/';
};

// posix version
exports.join = function() {
  var paths = Array.prototype.slice.call(arguments, 0);
  return exports.normalize(filter(paths, function(p, index) {
    if (typeof p !== 'string') {
      throw new TypeError('Arguments to path.join must be strings');
    }
    return p;
  }).join('/'));
};


// path.relative(from, to)
// posix version
exports.relative = function(from, to) {
  from = exports.resolve(from).substr(1);
  to = exports.resolve(to).substr(1);

  function trim(arr) {
    var start = 0;
    for (; start < arr.length; start++) {
      if (arr[start] !== '') break;
    }

    var end = arr.length - 1;
    for (; end >= 0; end--) {
      if (arr[end] !== '') break;
    }

    if (start > end) return [];
    return arr.slice(start, end - start + 1);
  }

  var fromParts = trim(from.split('/'));
  var toParts = trim(to.split('/'));

  var length = Math.min(fromParts.length, toParts.length);
  var samePartsLength = length;
  for (var i = 0; i < length; i++) {
    if (fromParts[i] !== toParts[i]) {
      samePartsLength = i;
      break;
    }
  }

  var outputParts = [];
  for (var i = samePartsLength; i < fromParts.length; i++) {
    outputParts.push('..');
  }

  outputParts = outputParts.concat(toParts.slice(samePartsLength));

  return outputParts.join('/');
};

exports.sep = '/';
exports.delimiter = ':';

exports.dirname = function (path) {
  if (typeof path !== 'string') path = path + '';
  if (path.length === 0) return '.';
  var code = path.charCodeAt(0);
  var hasRoot = code === 47 /*/*/;
  var end = -1;
  var matchedSlash = true;
  for (var i = path.length - 1; i >= 1; --i) {
    code = path.charCodeAt(i);
    if (code === 47 /*/*/) {
        if (!matchedSlash) {
          end = i;
          break;
        }
      } else {
      // We saw the first non-path separator
      matchedSlash = false;
    }
  }

  if (end === -1) return hasRoot ? '/' : '.';
  if (hasRoot && end === 1) {
    // return '//';
    // Backwards-compat fix:
    return '/';
  }
  return path.slice(0, end);
};

function basename(path) {
  if (typeof path !== 'string') path = path + '';

  var start = 0;
  var end = -1;
  var matchedSlash = true;
  var i;

  for (i = path.length - 1; i >= 0; --i) {
    if (path.charCodeAt(i) === 47 /*/*/) {
        // If we reached a path separator that was not part of a set of path
        // separators at the end of the string, stop now
        if (!matchedSlash) {
          start = i + 1;
          break;
        }
      } else if (end === -1) {
      // We saw the first non-path separator, mark this as the end of our
      // path component
      matchedSlash = false;
      end = i + 1;
    }
  }

  if (end === -1) return '';
  return path.slice(start, end);
}

// Uses a mixed approach for backwards-compatibility, as ext behavior changed
// in new Node.js versions, so only basename() above is backported here
exports.basename = function (path, ext) {
  var f = basename(path);
  if (ext && f.substr(-1 * ext.length) === ext) {
    f = f.substr(0, f.length - ext.length);
  }
  return f;
};

exports.extname = function (path) {
  if (typeof path !== 'string') path = path + '';
  var startDot = -1;
  var startPart = 0;
  var end = -1;
  var matchedSlash = true;
  // Track the state of characters (if any) we see before our first dot and
  // after any path separator we find
  var preDotState = 0;
  for (var i = path.length - 1; i >= 0; --i) {
    var code = path.charCodeAt(i);
    if (code === 47 /*/*/) {
        // If we reached a path separator that was not part of a set of path
        // separators at the end of the string, stop now
        if (!matchedSlash) {
          startPart = i + 1;
          break;
        }
        continue;
      }
    if (end === -1) {
      // We saw the first non-path separator, mark this as the end of our
      // extension
      matchedSlash = false;
      end = i + 1;
    }
    if (code === 46 /*.*/) {
        // If this is our first dot, mark it as the start of our extension
        if (startDot === -1)
          startDot = i;
        else if (preDotState !== 1)
          preDotState = 1;
    } else if (startDot !== -1) {
      // We saw a non-dot and non-path separator before our dot, so we should
      // have a good chance at having a non-empty extension
      preDotState = -1;
    }
  }

  if (startDot === -1 || end === -1 ||
      // We saw a non-dot character immediately before the dot
      preDotState === 0 ||
      // The (right-most) trimmed path component is exactly '..'
      preDotState === 1 && startDot === end - 1 && startDot === startPart + 1) {
    return '';
  }
  return path.slice(startDot, end);
};

function filter (xs, f) {
    if (xs.filter) return xs.filter(f);
    var res = [];
    for (var i = 0; i < xs.length; i++) {
        if (f(xs[i], i, xs)) res.push(xs[i]);
    }
    return res;
}

// String.prototype.substr - negative index don't work in IE8
var substr = 'ab'.substr(-1) === 'b'
    ? function (str, start, len) { return str.substr(start, len) }
    : function (str, start, len) {
        if (start < 0) start = str.length + start;
        return str.substr(start, len);
    }
;

}).call(this,require('_process'))
},{"_process":392}],316:[function(require,module,exports){
(function (global){
/*!
 * Platform.js <https://mths.be/platform>
 * Copyright 2014-2018 Benjamin Tan <https://bnjmnt4n.now.sh/>
 * Copyright 2011-2013 John-David Dalton <http://allyoucanleet.com/>
 * Available under MIT license <https://mths.be/mit>
 */
;(function() {
  'use strict';

  /** Used to determine if values are of the language type `Object`. */
  var objectTypes = {
    'function': true,
    'object': true
  };

  /** Used as a reference to the global object. */
  var root = (objectTypes[typeof window] && window) || this;

  /** Backup possible global object. */
  var oldRoot = root;

  /** Detect free variable `exports`. */
  var freeExports = objectTypes[typeof exports] && exports;

  /** Detect free variable `module`. */
  var freeModule = objectTypes[typeof module] && module && !module.nodeType && module;

  /** Detect free variable `global` from Node.js or Browserified code and use it as `root`. */
  var freeGlobal = freeExports && freeModule && typeof global == 'object' && global;
  if (freeGlobal && (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal || freeGlobal.self === freeGlobal)) {
    root = freeGlobal;
  }

  /**
   * Used as the maximum length of an array-like object.
   * See the [ES6 spec](http://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength)
   * for more details.
   */
  var maxSafeInteger = Math.pow(2, 53) - 1;

  /** Regular expression to detect Opera. */
  var reOpera = /\bOpera/;

  /** Possible global object. */
  var thisBinding = this;

  /** Used for native method references. */
  var objectProto = Object.prototype;

  /** Used to check for own properties of an object. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /** Used to resolve the internal `[[Class]]` of values. */
  var toString = objectProto.toString;

  /*--------------------------------------------------------------------------*/

  /**
   * Capitalizes a string value.
   *
   * @private
   * @param {string} string The string to capitalize.
   * @returns {string} The capitalized string.
   */
  function capitalize(string) {
    string = String(string);
    return string.charAt(0).toUpperCase() + string.slice(1);
  }

  /**
   * A utility function to clean up the OS name.
   *
   * @private
   * @param {string} os The OS name to clean up.
   * @param {string} [pattern] A `RegExp` pattern matching the OS name.
   * @param {string} [label] A label for the OS.
   */
  function cleanupOS(os, pattern, label) {
    // Platform tokens are defined at:
    // http://msdn.microsoft.com/en-us/library/ms537503(VS.85).aspx
    // http://web.archive.org/web/20081122053950/http://msdn.microsoft.com/en-us/library/ms537503(VS.85).aspx
    var data = {
      '10.0': '10',
      '6.4':  '10 Technical Preview',
      '6.3':  '8.1',
      '6.2':  '8',
      '6.1':  'Server 2008 R2 / 7',
      '6.0':  'Server 2008 / Vista',
      '5.2':  'Server 2003 / XP 64-bit',
      '5.1':  'XP',
      '5.01': '2000 SP1',
      '5.0':  '2000',
      '4.0':  'NT',
      '4.90': 'ME'
    };
    // Detect Windows version from platform tokens.
    if (pattern && label && /^Win/i.test(os) && !/^Windows Phone /i.test(os) &&
        (data = data[/[\d.]+$/.exec(os)])) {
      os = 'Windows ' + data;
    }
    // Correct character case and cleanup string.
    os = String(os);

    if (pattern && label) {
      os = os.replace(RegExp(pattern, 'i'), label);
    }

    os = format(
      os.replace(/ ce$/i, ' CE')
        .replace(/\bhpw/i, 'web')
        .replace(/\bMacintosh\b/, 'Mac OS')
        .replace(/_PowerPC\b/i, ' OS')
        .replace(/\b(OS X) [^ \d]+/i, '$1')
        .replace(/\bMac (OS X)\b/, '$1')
        .replace(/\/(\d)/, ' $1')
        .replace(/_/g, '.')
        .replace(/(?: BePC|[ .]*fc[ \d.]+)$/i, '')
        .replace(/\bx86\.64\b/gi, 'x86_64')
        .replace(/\b(Windows Phone) OS\b/, '$1')
        .replace(/\b(Chrome OS \w+) [\d.]+\b/, '$1')
        .split(' on ')[0]
    );

    return os;
  }

  /**
   * An iteration utility for arrays and objects.
   *
   * @private
   * @param {Array|Object} object The object to iterate over.
   * @param {Function} callback The function called per iteration.
   */
  function each(object, callback) {
    var index = -1,
        length = object ? object.length : 0;

    if (typeof length == 'number' && length > -1 && length <= maxSafeInteger) {
      while (++index < length) {
        callback(object[index], index, object);
      }
    } else {
      forOwn(object, callback);
    }
  }

  /**
   * Trim and conditionally capitalize string values.
   *
   * @private
   * @param {string} string The string to format.
   * @returns {string} The formatted string.
   */
  function format(string) {
    string = trim(string);
    return /^(?:webOS|i(?:OS|P))/.test(string)
      ? string
      : capitalize(string);
  }

  /**
   * Iterates over an object's own properties, executing the `callback` for each.
   *
   * @private
   * @param {Object} object The object to iterate over.
   * @param {Function} callback The function executed per own property.
   */
  function forOwn(object, callback) {
    for (var key in object) {
      if (hasOwnProperty.call(object, key)) {
        callback(object[key], key, object);
      }
    }
  }

  /**
   * Gets the internal `[[Class]]` of a value.
   *
   * @private
   * @param {*} value The value.
   * @returns {string} The `[[Class]]`.
   */
  function getClassOf(value) {
    return value == null
      ? capitalize(value)
      : toString.call(value).slice(8, -1);
  }

  /**
   * Host objects can return type values that are different from their actual
   * data type. The objects we are concerned with usually return non-primitive
   * types of "object", "function", or "unknown".
   *
   * @private
   * @param {*} object The owner of the property.
   * @param {string} property The property to check.
   * @returns {boolean} Returns `true` if the property value is a non-primitive, else `false`.
   */
  function isHostType(object, property) {
    var type = object != null ? typeof object[property] : 'number';
    return !/^(?:boolean|number|string|undefined)$/.test(type) &&
      (type == 'object' ? !!object[property] : true);
  }

  /**
   * Prepares a string for use in a `RegExp` by making hyphens and spaces optional.
   *
   * @private
   * @param {string} string The string to qualify.
   * @returns {string} The qualified string.
   */
  function qualify(string) {
    return String(string).replace(/([ -])(?!$)/g, '$1?');
  }

  /**
   * A bare-bones `Array#reduce` like utility function.
   *
   * @private
   * @param {Array} array The array to iterate over.
   * @param {Function} callback The function called per iteration.
   * @returns {*} The accumulated result.
   */
  function reduce(array, callback) {
    var accumulator = null;
    each(array, function(value, index) {
      accumulator = callback(accumulator, value, index, array);
    });
    return accumulator;
  }

  /**
   * Removes leading and trailing whitespace from a string.
   *
   * @private
   * @param {string} string The string to trim.
   * @returns {string} The trimmed string.
   */
  function trim(string) {
    return String(string).replace(/^ +| +$/g, '');
  }

  /*--------------------------------------------------------------------------*/

  /**
   * Creates a new platform object.
   *
   * @memberOf platform
   * @param {Object|string} [ua=navigator.userAgent] The user agent string or
   *  context object.
   * @returns {Object} A platform object.
   */
  function parse(ua) {

    /** The environment context object. */
    var context = root;

    /** Used to flag when a custom context is provided. */
    var isCustomContext = ua && typeof ua == 'object' && getClassOf(ua) != 'String';

    // Juggle arguments.
    if (isCustomContext) {
      context = ua;
      ua = null;
    }

    /** Browser navigator object. */
    var nav = context.navigator || {};

    /** Browser user agent string. */
    var userAgent = nav.userAgent || '';

    ua || (ua = userAgent);

    /** Used to flag when `thisBinding` is the [ModuleScope]. */
    var isModuleScope = isCustomContext || thisBinding == oldRoot;

    /** Used to detect if browser is like Chrome. */
    var likeChrome = isCustomContext
      ? !!nav.likeChrome
      : /\bChrome\b/.test(ua) && !/internal|\n/i.test(toString.toString());

    /** Internal `[[Class]]` value shortcuts. */
    var objectClass = 'Object',
        airRuntimeClass = isCustomContext ? objectClass : 'ScriptBridgingProxyObject',
        enviroClass = isCustomContext ? objectClass : 'Environment',
        javaClass = (isCustomContext && context.java) ? 'JavaPackage' : getClassOf(context.java),
        phantomClass = isCustomContext ? objectClass : 'RuntimeObject';

    /** Detect Java environments. */
    var java = /\bJava/.test(javaClass) && context.java;

    /** Detect Rhino. */
    var rhino = java && getClassOf(context.environment) == enviroClass;

    /** A character to represent alpha. */
    var alpha = java ? 'a' : '\u03b1';

    /** A character to represent beta. */
    var beta = java ? 'b' : '\u03b2';

    /** Browser document object. */
    var doc = context.document || {};

    /**
     * Detect Opera browser (Presto-based).
     * http://www.howtocreate.co.uk/operaStuff/operaObject.html
     * http://dev.opera.com/articles/view/opera-mini-web-content-authoring-guidelines/#operamini
     */
    var opera = context.operamini || context.opera;

    /** Opera `[[Class]]`. */
    var operaClass = reOpera.test(operaClass = (isCustomContext && opera) ? opera['[[Class]]'] : getClassOf(opera))
      ? operaClass
      : (opera = null);

    /*------------------------------------------------------------------------*/

    /** Temporary variable used over the script's lifetime. */
    var data;

    /** The CPU architecture. */
    var arch = ua;

    /** Platform description array. */
    var description = [];

    /** Platform alpha/beta indicator. */
    var prerelease = null;

    /** A flag to indicate that environment features should be used to resolve the platform. */
    var useFeatures = ua == userAgent;

    /** The browser/environment version. */
    var version = useFeatures && opera && typeof opera.version == 'function' && opera.version();

    /** A flag to indicate if the OS ends with "/ Version" */
    var isSpecialCasedOS;

    /* Detectable layout engines (order is important). */
    var layout = getLayout([
      { 'label': 'EdgeHTML', 'pattern': 'Edge' },
      'Trident',
      { 'label': 'WebKit', 'pattern': 'AppleWebKit' },
      'iCab',
      'Presto',
      'NetFront',
      'Tasman',
      'KHTML',
      'Gecko'
    ]);

    /* Detectable browser names (order is important). */
    var name = getName([
      'Adobe AIR',
      'Arora',
      'Avant Browser',
      'Breach',
      'Camino',
      'Electron',
      'Epiphany',
      'Fennec',
      'Flock',
      'Galeon',
      'GreenBrowser',
      'iCab',
      'Iceweasel',
      'K-Meleon',
      'Konqueror',
      'Lunascape',
      'Maxthon',
      { 'label': 'Microsoft Edge', 'pattern': 'Edge' },
      'Midori',
      'Nook Browser',
      'PaleMoon',
      'PhantomJS',
      'Raven',
      'Rekonq',
      'RockMelt',
      { 'label': 'Samsung Internet', 'pattern': 'SamsungBrowser' },
      'SeaMonkey',
      { 'label': 'Silk', 'pattern': '(?:Cloud9|Silk-Accelerated)' },
      'Sleipnir',
      'SlimBrowser',
      { 'label': 'SRWare Iron', 'pattern': 'Iron' },
      'Sunrise',
      'Swiftfox',
      'Waterfox',
      'WebPositive',
      'Opera Mini',
      { 'label': 'Opera Mini', 'pattern': 'OPiOS' },
      'Opera',
      { 'label': 'Opera', 'pattern': 'OPR' },
      'Chrome',
      { 'label': 'Chrome Mobile', 'pattern': '(?:CriOS|CrMo)' },
      { 'label': 'Firefox', 'pattern': '(?:Firefox|Minefield)' },
      { 'label': 'Firefox for iOS', 'pattern': 'FxiOS' },
      { 'label': 'IE', 'pattern': 'IEMobile' },
      { 'label': 'IE', 'pattern': 'MSIE' },
      'Safari'
    ]);

    /* Detectable products (order is important). */
    var product = getProduct([
      { 'label': 'BlackBerry', 'pattern': 'BB10' },
      'BlackBerry',
      { 'label': 'Galaxy S', 'pattern': 'GT-I9000' },
      { 'label': 'Galaxy S2', 'pattern': 'GT-I9100' },
      { 'label': 'Galaxy S3', 'pattern': 'GT-I9300' },
      { 'label': 'Galaxy S4', 'pattern': 'GT-I9500' },
      { 'label': 'Galaxy S5', 'pattern': 'SM-G900' },
      { 'label': 'Galaxy S6', 'pattern': 'SM-G920' },
      { 'label': 'Galaxy S6 Edge', 'pattern': 'SM-G925' },
      { 'label': 'Galaxy S7', 'pattern': 'SM-G930' },
      { 'label': 'Galaxy S7 Edge', 'pattern': 'SM-G935' },
      'Google TV',
      'Lumia',
      'iPad',
      'iPod',
      'iPhone',
      'Kindle',
      { 'label': 'Kindle Fire', 'pattern': '(?:Cloud9|Silk-Accelerated)' },
      'Nexus',
      'Nook',
      'PlayBook',
      'PlayStation Vita',
      'PlayStation',
      'TouchPad',
      'Transformer',
      { 'label': 'Wii U', 'pattern': 'WiiU' },
      'Wii',
      'Xbox One',
      { 'label': 'Xbox 360', 'pattern': 'Xbox' },
      'Xoom'
    ]);

    /* Detectable manufacturers. */
    var manufacturer = getManufacturer({
      'Apple': { 'iPad': 1, 'iPhone': 1, 'iPod': 1 },
      'Archos': {},
      'Amazon': { 'Kindle': 1, 'Kindle Fire': 1 },
      'Asus': { 'Transformer': 1 },
      'Barnes & Noble': { 'Nook': 1 },
      'BlackBerry': { 'PlayBook': 1 },
      'Google': { 'Google TV': 1, 'Nexus': 1 },
      'HP': { 'TouchPad': 1 },
      'HTC': {},
      'LG': {},
      'Microsoft': { 'Xbox': 1, 'Xbox One': 1 },
      'Motorola': { 'Xoom': 1 },
      'Nintendo': { 'Wii U': 1,  'Wii': 1 },
      'Nokia': { 'Lumia': 1 },
      'Samsung': { 'Galaxy S': 1, 'Galaxy S2': 1, 'Galaxy S3': 1, 'Galaxy S4': 1 },
      'Sony': { 'PlayStation': 1, 'PlayStation Vita': 1 }
    });

    /* Detectable operating systems (order is important). */
    var os = getOS([
      'Windows Phone',
      'Android',
      'CentOS',
      { 'label': 'Chrome OS', 'pattern': 'CrOS' },
      'Debian',
      'Fedora',
      'FreeBSD',
      'Gentoo',
      'Haiku',
      'Kubuntu',
      'Linux Mint',
      'OpenBSD',
      'Red Hat',
      'SuSE',
      'Ubuntu',
      'Xubuntu',
      'Cygwin',
      'Symbian OS',
      'hpwOS',
      'webOS ',
      'webOS',
      'Tablet OS',
      'Tizen',
      'Linux',
      'Mac OS X',
      'Macintosh',
      'Mac',
      'Windows 98;',
      'Windows '
    ]);

    /*------------------------------------------------------------------------*/

    /**
     * Picks the layout engine from an array of guesses.
     *
     * @private
     * @param {Array} guesses An array of guesses.
     * @returns {null|string} The detected layout engine.
     */
    function getLayout(guesses) {
      return reduce(guesses, function(result, guess) {
        return result || RegExp('\\b' + (
          guess.pattern || qualify(guess)
        ) + '\\b', 'i').exec(ua) && (guess.label || guess);
      });
    }

    /**
     * Picks the manufacturer from an array of guesses.
     *
     * @private
     * @param {Array} guesses An object of guesses.
     * @returns {null|string} The detected manufacturer.
     */
    function getManufacturer(guesses) {
      return reduce(guesses, function(result, value, key) {
        // Lookup the manufacturer by product or scan the UA for the manufacturer.
        return result || (
          value[product] ||
          value[/^[a-z]+(?: +[a-z]+\b)*/i.exec(product)] ||
          RegExp('\\b' + qualify(key) + '(?:\\b|\\w*\\d)', 'i').exec(ua)
        ) && key;
      });
    }

    /**
     * Picks the browser name from an array of guesses.
     *
     * @private
     * @param {Array} guesses An array of guesses.
     * @returns {null|string} The detected browser name.
     */
    function getName(guesses) {
      return reduce(guesses, function(result, guess) {
        return result || RegExp('\\b' + (
          guess.pattern || qualify(guess)
        ) + '\\b', 'i').exec(ua) && (guess.label || guess);
      });
    }

    /**
     * Picks the OS name from an array of guesses.
     *
     * @private
     * @param {Array} guesses An array of guesses.
     * @returns {null|string} The detected OS name.
     */
    function getOS(guesses) {
      return reduce(guesses, function(result, guess) {
        var pattern = guess.pattern || qualify(guess);
        if (!result && (result =
              RegExp('\\b' + pattern + '(?:/[\\d.]+|[ \\w.]*)', 'i').exec(ua)
            )) {
          result = cleanupOS(result, pattern, guess.label || guess);
        }
        return result;
      });
    }

    /**
     * Picks the product name from an array of guesses.
     *
     * @private
     * @param {Array} guesses An array of guesses.
     * @returns {null|string} The detected product name.
     */
    function getProduct(guesses) {
      return reduce(guesses, function(result, guess) {
        var pattern = guess.pattern || qualify(guess);
        if (!result && (result =
              RegExp('\\b' + pattern + ' *\\d+[.\\w_]*', 'i').exec(ua) ||
              RegExp('\\b' + pattern + ' *\\w+-[\\w]*', 'i').exec(ua) ||
              RegExp('\\b' + pattern + '(?:; *(?:[a-z]+[_-])?[a-z]+\\d+|[^ ();-]*)', 'i').exec(ua)
            )) {
          // Split by forward slash and append product version if needed.
          if ((result = String((guess.label && !RegExp(pattern, 'i').test(guess.label)) ? guess.label : result).split('/'))[1] && !/[\d.]+/.test(result[0])) {
            result[0] += ' ' + result[1];
          }
          // Correct character case and cleanup string.
          guess = guess.label || guess;
          result = format(result[0]
            .replace(RegExp(pattern, 'i'), guess)
            .replace(RegExp('; *(?:' + guess + '[_-])?', 'i'), ' ')
            .replace(RegExp('(' + guess + ')[-_.]?(\\w)', 'i'), '$1 $2'));
        }
        return result;
      });
    }

    /**
     * Resolves the version using an array of UA patterns.
     *
     * @private
     * @param {Array} patterns An array of UA patterns.
     * @returns {null|string} The detected version.
     */
    function getVersion(patterns) {
      return reduce(patterns, function(result, pattern) {
        return result || (RegExp(pattern +
          '(?:-[\\d.]+/|(?: for [\\w-]+)?[ /-])([\\d.]+[^ ();/_-]*)', 'i').exec(ua) || 0)[1] || null;
      });
    }

    /**
     * Returns `platform.description` when the platform object is coerced to a string.
     *
     * @name toString
     * @memberOf platform
     * @returns {string} Returns `platform.description` if available, else an empty string.
     */
    function toStringPlatform() {
      return this.description || '';
    }

    /*------------------------------------------------------------------------*/

    // Convert layout to an array so we can add extra details.
    layout && (layout = [layout]);

    // Detect product names that contain their manufacturer's name.
    if (manufacturer && !product) {
      product = getProduct([manufacturer]);
    }
    // Clean up Google TV.
    if ((data = /\bGoogle TV\b/.exec(product))) {
      product = data[0];
    }
    // Detect simulators.
    if (/\bSimulator\b/i.test(ua)) {
      product = (product ? product + ' ' : '') + 'Simulator';
    }
    // Detect Opera Mini 8+ running in Turbo/Uncompressed mode on iOS.
    if (name == 'Opera Mini' && /\bOPiOS\b/.test(ua)) {
      description.push('running in Turbo/Uncompressed mode');
    }
    // Detect IE Mobile 11.
    if (name == 'IE' && /\blike iPhone OS\b/.test(ua)) {
      data = parse(ua.replace(/like iPhone OS/, ''));
      manufacturer = data.manufacturer;
      product = data.product;
    }
    // Detect iOS.
    else if (/^iP/.test(product)) {
      name || (name = 'Safari');
      os = 'iOS' + ((data = / OS ([\d_]+)/i.exec(ua))
        ? ' ' + data[1].replace(/_/g, '.')
        : '');
    }
    // Detect Kubuntu.
    else if (name == 'Konqueror' && !/buntu/i.test(os)) {
      os = 'Kubuntu';
    }
    // Detect Android browsers.
    else if ((manufacturer && manufacturer != 'Google' &&
        ((/Chrome/.test(name) && !/\bMobile Safari\b/i.test(ua)) || /\bVita\b/.test(product))) ||
        (/\bAndroid\b/.test(os) && /^Chrome/.test(name) && /\bVersion\//i.test(ua))) {
      name = 'Android Browser';
      os = /\bAndroid\b/.test(os) ? os : 'Android';
    }
    // Detect Silk desktop/accelerated modes.
    else if (name == 'Silk') {
      if (!/\bMobi/i.test(ua)) {
        os = 'Android';
        description.unshift('desktop mode');
      }
      if (/Accelerated *= *true/i.test(ua)) {
        description.unshift('accelerated');
      }
    }
    // Detect PaleMoon identifying as Firefox.
    else if (name == 'PaleMoon' && (data = /\bFirefox\/([\d.]+)\b/.exec(ua))) {
      description.push('identifying as Firefox ' + data[1]);
    }
    // Detect Firefox OS and products running Firefox.
    else if (name == 'Firefox' && (data = /\b(Mobile|Tablet|TV)\b/i.exec(ua))) {
      os || (os = 'Firefox OS');
      product || (product = data[1]);
    }
    // Detect false positives for Firefox/Safari.
    else if (!name || (data = !/\bMinefield\b/i.test(ua) && /\b(?:Firefox|Safari)\b/.exec(name))) {
      // Escape the `/` for Firefox 1.
      if (name && !product && /[\/,]|^[^(]+?\)/.test(ua.slice(ua.indexOf(data + '/') + 8))) {
        // Clear name of false positives.
        name = null;
      }
      // Reassign a generic name.
      if ((data = product || manufacturer || os) &&
          (product || manufacturer || /\b(?:Android|Symbian OS|Tablet OS|webOS)\b/.test(os))) {
        name = /[a-z]+(?: Hat)?/i.exec(/\bAndroid\b/.test(os) ? os : data) + ' Browser';
      }
    }
    // Add Chrome version to description for Electron.
    else if (name == 'Electron' && (data = (/\bChrome\/([\d.]+)\b/.exec(ua) || 0)[1])) {
      description.push('Chromium ' + data);
    }
    // Detect non-Opera (Presto-based) versions (order is important).
    if (!version) {
      version = getVersion([
        '(?:Cloud9|CriOS|CrMo|Edge|FxiOS|IEMobile|Iron|Opera ?Mini|OPiOS|OPR|Raven|SamsungBrowser|Silk(?!/[\\d.]+$))',
        'Version',
        qualify(name),
        '(?:Firefox|Minefield|NetFront)'
      ]);
    }
    // Detect stubborn layout engines.
    if ((data =
          layout == 'iCab' && parseFloat(version) > 3 && 'WebKit' ||
          /\bOpera\b/.test(name) && (/\bOPR\b/.test(ua) ? 'Blink' : 'Presto') ||
          /\b(?:Midori|Nook|Safari)\b/i.test(ua) && !/^(?:Trident|EdgeHTML)$/.test(layout) && 'WebKit' ||
          !layout && /\bMSIE\b/i.test(ua) && (os == 'Mac OS' ? 'Tasman' : 'Trident') ||
          layout == 'WebKit' && /\bPlayStation\b(?! Vita\b)/i.test(name) && 'NetFront'
        )) {
      layout = [data];
    }
    // Detect Windows Phone 7 desktop mode.
    if (name == 'IE' && (data = (/; *(?:XBLWP|ZuneWP)(\d+)/i.exec(ua) || 0)[1])) {
      name += ' Mobile';
      os = 'Windows Phone ' + (/\+$/.test(data) ? data : data + '.x');
      description.unshift('desktop mode');
    }
    // Detect Windows Phone 8.x desktop mode.
    else if (/\bWPDesktop\b/i.test(ua)) {
      name = 'IE Mobile';
      os = 'Windows Phone 8.x';
      description.unshift('desktop mode');
      version || (version = (/\brv:([\d.]+)/.exec(ua) || 0)[1]);
    }
    // Detect IE 11 identifying as other browsers.
    else if (name != 'IE' && layout == 'Trident' && (data = /\brv:([\d.]+)/.exec(ua))) {
      if (name) {
        description.push('identifying as ' + name + (version ? ' ' + version : ''));
      }
      name = 'IE';
      version = data[1];
    }
    // Leverage environment features.
    if (useFeatures) {
      // Detect server-side environments.
      // Rhino has a global function while others have a global object.
      if (isHostType(context, 'global')) {
        if (java) {
          data = java.lang.System;
          arch = data.getProperty('os.arch');
          os = os || data.getProperty('os.name') + ' ' + data.getProperty('os.version');
        }
        if (rhino) {
          try {
            version = context.require('ringo/engine').version.join('.');
            name = 'RingoJS';
          } catch(e) {
            if ((data = context.system) && data.global.system == context.system) {
              name = 'Narwhal';
              os || (os = data[0].os || null);
            }
          }
          if (!name) {
            name = 'Rhino';
          }
        }
        else if (
          typeof context.process == 'object' && !context.process.browser &&
          (data = context.process)
        ) {
          if (typeof data.versions == 'object') {
            if (typeof data.versions.electron == 'string') {
              description.push('Node ' + data.versions.node);
              name = 'Electron';
              version = data.versions.electron;
            } else if (typeof data.versions.nw == 'string') {
              description.push('Chromium ' + version, 'Node ' + data.versions.node);
              name = 'NW.js';
              version = data.versions.nw;
            }
          }
          if (!name) {
            name = 'Node.js';
            arch = data.arch;
            os = data.platform;
            version = /[\d.]+/.exec(data.version);
            version = version ? version[0] : null;
          }
        }
      }
      // Detect Adobe AIR.
      else if (getClassOf((data = context.runtime)) == airRuntimeClass) {
        name = 'Adobe AIR';
        os = data.flash.system.Capabilities.os;
      }
      // Detect PhantomJS.
      else if (getClassOf((data = context.phantom)) == phantomClass) {
        name = 'PhantomJS';
        version = (data = data.version || null) && (data.major + '.' + data.minor + '.' + data.patch);
      }
      // Detect IE compatibility modes.
      else if (typeof doc.documentMode == 'number' && (data = /\bTrident\/(\d+)/i.exec(ua))) {
        // We're in compatibility mode when the Trident version + 4 doesn't
        // equal the document mode.
        version = [version, doc.documentMode];
        if ((data = +data[1] + 4) != version[1]) {
          description.push('IE ' + version[1] + ' mode');
          layout && (layout[1] = '');
          version[1] = data;
        }
        version = name == 'IE' ? String(version[1].toFixed(1)) : version[0];
      }
      // Detect IE 11 masking as other browsers.
      else if (typeof doc.documentMode == 'number' && /^(?:Chrome|Firefox)\b/.test(name)) {
        description.push('masking as ' + name + ' ' + version);
        name = 'IE';
        version = '11.0';
        layout = ['Trident'];
        os = 'Windows';
      }
      os = os && format(os);
    }
    // Detect prerelease phases.
    if (version && (data =
          /(?:[ab]|dp|pre|[ab]\d+pre)(?:\d+\+?)?$/i.exec(version) ||
          /(?:alpha|beta)(?: ?\d)?/i.exec(ua + ';' + (useFeatures && nav.appMinorVersion)) ||
          /\bMinefield\b/i.test(ua) && 'a'
        )) {
      prerelease = /b/i.test(data) ? 'beta' : 'alpha';
      version = version.replace(RegExp(data + '\\+?$'), '') +
        (prerelease == 'beta' ? beta : alpha) + (/\d+\+?/.exec(data) || '');
    }
    // Detect Firefox Mobile.
    if (name == 'Fennec' || name == 'Firefox' && /\b(?:Android|Firefox OS)\b/.test(os)) {
      name = 'Firefox Mobile';
    }
    // Obscure Maxthon's unreliable version.
    else if (name == 'Maxthon' && version) {
      version = version.replace(/\.[\d.]+/, '.x');
    }
    // Detect Xbox 360 and Xbox One.
    else if (/\bXbox\b/i.test(product)) {
      if (product == 'Xbox 360') {
        os = null;
      }
      if (product == 'Xbox 360' && /\bIEMobile\b/.test(ua)) {
        description.unshift('mobile mode');
      }
    }
    // Add mobile postfix.
    else if ((/^(?:Chrome|IE|Opera)$/.test(name) || name && !product && !/Browser|Mobi/.test(name)) &&
        (os == 'Windows CE' || /Mobi/i.test(ua))) {
      name += ' Mobile';
    }
    // Detect IE platform preview.
    else if (name == 'IE' && useFeatures) {
      try {
        if (context.external === null) {
          description.unshift('platform preview');
        }
      } catch(e) {
        description.unshift('embedded');
      }
    }
    // Detect BlackBerry OS version.
    // http://docs.blackberry.com/en/developers/deliverables/18169/HTTP_headers_sent_by_BB_Browser_1234911_11.jsp
    else if ((/\bBlackBerry\b/.test(product) || /\bBB10\b/.test(ua)) && (data =
          (RegExp(product.replace(/ +/g, ' *') + '/([.\\d]+)', 'i').exec(ua) || 0)[1] ||
          version
        )) {
      data = [data, /BB10/.test(ua)];
      os = (data[1] ? (product = null, manufacturer = 'BlackBerry') : 'Device Software') + ' ' + data[0];
      version = null;
    }
    // Detect Opera identifying/masking itself as another browser.
    // http://www.opera.com/support/kb/view/843/
    else if (this != forOwn && product != 'Wii' && (
          (useFeatures && opera) ||
          (/Opera/.test(name) && /\b(?:MSIE|Firefox)\b/i.test(ua)) ||
          (name == 'Firefox' && /\bOS X (?:\d+\.){2,}/.test(os)) ||
          (name == 'IE' && (
            (os && !/^Win/.test(os) && version > 5.5) ||
            /\bWindows XP\b/.test(os) && version > 8 ||
            version == 8 && !/\bTrident\b/.test(ua)
          ))
        ) && !reOpera.test((data = parse.call(forOwn, ua.replace(reOpera, '') + ';'))) && data.name) {
      // When "identifying", the UA contains both Opera and the other browser's name.
      data = 'ing as ' + data.name + ((data = data.version) ? ' ' + data : '');
      if (reOpera.test(name)) {
        if (/\bIE\b/.test(data) && os == 'Mac OS') {
          os = null;
        }
        data = 'identify' + data;
      }
      // When "masking", the UA contains only the other browser's name.
      else {
        data = 'mask' + data;
        if (operaClass) {
          name = format(operaClass.replace(/([a-z])([A-Z])/g, '$1 $2'));
        } else {
          name = 'Opera';
        }
        if (/\bIE\b/.test(data)) {
          os = null;
        }
        if (!useFeatures) {
          version = null;
        }
      }
      layout = ['Presto'];
      description.push(data);
    }
    // Detect WebKit Nightly and approximate Chrome/Safari versions.
    if ((data = (/\bAppleWebKit\/([\d.]+\+?)/i.exec(ua) || 0)[1])) {
      // Correct build number for numeric comparison.
      // (e.g. "532.5" becomes "532.05")
      data = [parseFloat(data.replace(/\.(\d)$/, '.0$1')), data];
      // Nightly builds are postfixed with a "+".
      if (name == 'Safari' && data[1].slice(-1) == '+') {
        name = 'WebKit Nightly';
        prerelease = 'alpha';
        version = data[1].slice(0, -1);
      }
      // Clear incorrect browser versions.
      else if (version == data[1] ||
          version == (data[2] = (/\bSafari\/([\d.]+\+?)/i.exec(ua) || 0)[1])) {
        version = null;
      }
      // Use the full Chrome version when available.
      data[1] = (/\bChrome\/([\d.]+)/i.exec(ua) || 0)[1];
      // Detect Blink layout engine.
      if (data[0] == 537.36 && data[2] == 537.36 && parseFloat(data[1]) >= 28 && layout == 'WebKit') {
        layout = ['Blink'];
      }
      // Detect JavaScriptCore.
      // http://stackoverflow.com/questions/6768474/how-can-i-detect-which-javascript-engine-v8-or-jsc-is-used-at-runtime-in-androi
      if (!useFeatures || (!likeChrome && !data[1])) {
        layout && (layout[1] = 'like Safari');
        data = (data = data[0], data < 400 ? 1 : data < 500 ? 2 : data < 526 ? 3 : data < 533 ? 4 : data < 534 ? '4+' : data < 535 ? 5 : data < 537 ? 6 : data < 538 ? 7 : data < 601 ? 8 : '8');
      } else {
        layout && (layout[1] = 'like Chrome');
        data = data[1] || (data = data[0], data < 530 ? 1 : data < 532 ? 2 : data < 532.05 ? 3 : data < 533 ? 4 : data < 534.03 ? 5 : data < 534.07 ? 6 : data < 534.10 ? 7 : data < 534.13 ? 8 : data < 534.16 ? 9 : data < 534.24 ? 10 : data < 534.30 ? 11 : data < 535.01 ? 12 : data < 535.02 ? '13+' : data < 535.07 ? 15 : data < 535.11 ? 16 : data < 535.19 ? 17 : data < 536.05 ? 18 : data < 536.10 ? 19 : data < 537.01 ? 20 : data < 537.11 ? '21+' : data < 537.13 ? 23 : data < 537.18 ? 24 : data < 537.24 ? 25 : data < 537.36 ? 26 : layout != 'Blink' ? '27' : '28');
      }
      // Add the postfix of ".x" or "+" for approximate versions.
      layout && (layout[1] += ' ' + (data += typeof data == 'number' ? '.x' : /[.+]/.test(data) ? '' : '+'));
      // Obscure version for some Safari 1-2 releases.
      if (name == 'Safari' && (!version || parseInt(version) > 45)) {
        version = data;
      }
    }
    // Detect Opera desktop modes.
    if (name == 'Opera' &&  (data = /\bzbov|zvav$/.exec(os))) {
      name += ' ';
      description.unshift('desktop mode');
      if (data == 'zvav') {
        name += 'Mini';
        version = null;
      } else {
        name += 'Mobile';
      }
      os = os.replace(RegExp(' *' + data + '$'), '');
    }
    // Detect Chrome desktop mode.
    else if (name == 'Safari' && /\bChrome\b/.exec(layout && layout[1])) {
      description.unshift('desktop mode');
      name = 'Chrome Mobile';
      version = null;

      if (/\bOS X\b/.test(os)) {
        manufacturer = 'Apple';
        os = 'iOS 4.3+';
      } else {
        os = null;
      }
    }
    // Strip incorrect OS versions.
    if (version && version.indexOf((data = /[\d.]+$/.exec(os))) == 0 &&
        ua.indexOf('/' + data + '-') > -1) {
      os = trim(os.replace(data, ''));
    }
    // Add layout engine.
    if (layout && !/\b(?:Avant|Nook)\b/.test(name) && (
        /Browser|Lunascape|Maxthon/.test(name) ||
        name != 'Safari' && /^iOS/.test(os) && /\bSafari\b/.test(layout[1]) ||
        /^(?:Adobe|Arora|Breach|Midori|Opera|Phantom|Rekonq|Rock|Samsung Internet|Sleipnir|Web)/.test(name) && layout[1])) {
      // Don't add layout details to description if they are falsey.
      (data = layout[layout.length - 1]) && description.push(data);
    }
    // Combine contextual information.
    if (description.length) {
      description = ['(' + description.join('; ') + ')'];
    }
    // Append manufacturer to description.
    if (manufacturer && product && product.indexOf(manufacturer) < 0) {
      description.push('on ' + manufacturer);
    }
    // Append product to description.
    if (product) {
      description.push((/^on /.test(description[description.length - 1]) ? '' : 'on ') + product);
    }
    // Parse the OS into an object.
    if (os) {
      data = / ([\d.+]+)$/.exec(os);
      isSpecialCasedOS = data && os.charAt(os.length - data[0].length - 1) == '/';
      os = {
        'architecture': 32,
        'family': (data && !isSpecialCasedOS) ? os.replace(data[0], '') : os,
        'version': data ? data[1] : null,
        'toString': function() {
          var version = this.version;
          return this.family + ((version && !isSpecialCasedOS) ? ' ' + version : '') + (this.architecture == 64 ? ' 64-bit' : '');
        }
      };
    }
    // Add browser/OS architecture.
    if ((data = /\b(?:AMD|IA|Win|WOW|x86_|x)64\b/i.exec(arch)) && !/\bi686\b/i.test(arch)) {
      if (os) {
        os.architecture = 64;
        os.family = os.family.replace(RegExp(' *' + data), '');
      }
      if (
          name && (/\bWOW64\b/i.test(ua) ||
          (useFeatures && /\w(?:86|32)$/.test(nav.cpuClass || nav.platform) && !/\bWin64; x64\b/i.test(ua)))
      ) {
        description.unshift('32-bit');
      }
    }
    // Chrome 39 and above on OS X is always 64-bit.
    else if (
        os && /^OS X/.test(os.family) &&
        name == 'Chrome' && parseFloat(version) >= 39
    ) {
      os.architecture = 64;
    }

    ua || (ua = null);

    /*------------------------------------------------------------------------*/

    /**
     * The platform object.
     *
     * @name platform
     * @type Object
     */
    var platform = {};

    /**
     * The platform description.
     *
     * @memberOf platform
     * @type string|null
     */
    platform.description = ua;

    /**
     * The name of the browser's layout engine.
     *
     * The list of common layout engines include:
     * "Blink", "EdgeHTML", "Gecko", "Trident" and "WebKit"
     *
     * @memberOf platform
     * @type string|null
     */
    platform.layout = layout && layout[0];

    /**
     * The name of the product's manufacturer.
     *
     * The list of manufacturers include:
     * "Apple", "Archos", "Amazon", "Asus", "Barnes & Noble", "BlackBerry",
     * "Google", "HP", "HTC", "LG", "Microsoft", "Motorola", "Nintendo",
     * "Nokia", "Samsung" and "Sony"
     *
     * @memberOf platform
     * @type string|null
     */
    platform.manufacturer = manufacturer;

    /**
     * The name of the browser/environment.
     *
     * The list of common browser names include:
     * "Chrome", "Electron", "Firefox", "Firefox for iOS", "IE",
     * "Microsoft Edge", "PhantomJS", "Safari", "SeaMonkey", "Silk",
     * "Opera Mini" and "Opera"
     *
     * Mobile versions of some browsers have "Mobile" appended to their name:
     * eg. "Chrome Mobile", "Firefox Mobile", "IE Mobile" and "Opera Mobile"
     *
     * @memberOf platform
     * @type string|null
     */
    platform.name = name;

    /**
     * The alpha/beta release indicator.
     *
     * @memberOf platform
     * @type string|null
     */
    platform.prerelease = prerelease;

    /**
     * The name of the product hosting the browser.
     *
     * The list of common products include:
     *
     * "BlackBerry", "Galaxy S4", "Lumia", "iPad", "iPod", "iPhone", "Kindle",
     * "Kindle Fire", "Nexus", "Nook", "PlayBook", "TouchPad" and "Transformer"
     *
     * @memberOf platform
     * @type string|null
     */
    platform.product = product;

    /**
     * The browser's user agent string.
     *
     * @memberOf platform
     * @type string|null
     */
    platform.ua = ua;

    /**
     * The browser/environment version.
     *
     * @memberOf platform
     * @type string|null
     */
    platform.version = name && version;

    /**
     * The name of the operating system.
     *
     * @memberOf platform
     * @type Object
     */
    platform.os = os || {

      /**
       * The CPU architecture the OS is built for.
       *
       * @memberOf platform.os
       * @type number|null
       */
      'architecture': null,

      /**
       * The family of the OS.
       *
       * Common values include:
       * "Windows", "Windows Server 2008 R2 / 7", "Windows Server 2008 / Vista",
       * "Windows XP", "OS X", "Ubuntu", "Debian", "Fedora", "Red Hat", "SuSE",
       * "Android", "iOS" and "Windows Phone"
       *
       * @memberOf platform.os
       * @type string|null
       */
      'family': null,

      /**
       * The version of the OS.
       *
       * @memberOf platform.os
       * @type string|null
       */
      'version': null,

      /**
       * Returns the OS string.
       *
       * @memberOf platform.os
       * @returns {string} The OS string.
       */
      'toString': function() { return 'null'; }
    };

    platform.parse = parse;
    platform.toString = toStringPlatform;

    if (platform.version) {
      description.unshift(version);
    }
    if (platform.name) {
      description.unshift(name);
    }
    if (os && name && !(os == String(os).split(' ')[0] && (os == name.split(' ')[0] || product))) {
      description.push(product ? '(' + os + ')' : 'on ' + os);
    }
    if (description.length) {
      platform.description = description.join(' ');
    }
    return platform;
  }

  /*--------------------------------------------------------------------------*/

  // Export platform.
  var platform = parse();

  // Some AMD build optimizers, like r.js, check for condition patterns like the following:
  if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
    // Expose platform on the global object to prevent errors when platform is
    // loaded by a script tag in the presence of an AMD loader.
    // See http://requirejs.org/docs/errors.html#mismatch for more details.
    root.platform = platform;

    // Define as an anonymous module so platform can be aliased through path mapping.
    define(function() {
      return platform;
    });
  }
  // Check for `exports` after `define` in case a build optimizer adds an `exports` object.
  else if (freeExports && freeModule) {
    // Export for CommonJS support.
    forOwn(platform, function(value, key) {
      freeExports[key] = value;
    });
  }
  else {
    // Export to the global object.
    root.platform = platform;
  }
}.call(this));

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],317:[function(require,module,exports){
(function (process){
'use strict';

if (typeof process === 'undefined' ||
    !process.version ||
    process.version.indexOf('v0.') === 0 ||
    process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {
  module.exports = { nextTick: nextTick };
} else {
  module.exports = process
}

function nextTick(fn, arg1, arg2, arg3) {
  if (typeof fn !== 'function') {
    throw new TypeError('"callback" argument must be a function');
  }
  var len = arguments.length;
  var args, i;
  switch (len) {
  case 0:
  case 1:
    return process.nextTick(fn);
  case 2:
    return process.nextTick(function afterTickOne() {
      fn.call(null, arg1);
    });
  case 3:
    return process.nextTick(function afterTickTwo() {
      fn.call(null, arg1, arg2);
    });
  case 4:
    return process.nextTick(function afterTickThree() {
      fn.call(null, arg1, arg2, arg3);
    });
  default:
    args = new Array(len - 1);
    i = 0;
    while (i < args.length) {
      args[i++] = arguments[i];
    }
    return process.nextTick(function afterTick() {
      fn.apply(null, args);
    });
  }
}


}).call(this,require('_process'))
},{"_process":392}],318:[function(require,module,exports){
// shim for using process in browser
var process = module.exports = {};

// cached from whatever global is present so that test runners that stub it
// don't break things.  But we need to wrap it in a try catch in case it is
// wrapped in strict mode code which doesn't define any globals.  It's inside a
// function because try/catches deoptimize in certain engines.

var cachedSetTimeout;
var cachedClearTimeout;

function defaultSetTimout() {
    throw new Error('setTimeout has not been defined');
}
function defaultClearTimeout () {
    throw new Error('clearTimeout has not been defined');
}
(function () {
    try {
        if (typeof setTimeout === 'function') {
            cachedSetTimeout = setTimeout;
        } else {
            cachedSetTimeout = defaultSetTimout;
        }
    } catch (e) {
        cachedSetTimeout = defaultSetTimout;
    }
    try {
        if (typeof clearTimeout === 'function') {
            cachedClearTimeout = clearTimeout;
        } else {
            cachedClearTimeout = defaultClearTimeout;
        }
    } catch (e) {
        cachedClearTimeout = defaultClearTimeout;
    }
} ())
function runTimeout(fun) {
    if (cachedSetTimeout === setTimeout) {
        //normal enviroments in sane situations
        return setTimeout(fun, 0);
    }
    // if setTimeout wasn't available but was latter defined
    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
        cachedSetTimeout = setTimeout;
        return setTimeout(fun, 0);
    }
    try {
        // when when somebody has screwed with setTimeout but no I.E. maddness
        return cachedSetTimeout(fun, 0);
    } catch(e){
        try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
            return cachedSetTimeout.call(null, fun, 0);
        } catch(e){
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
            return cachedSetTimeout.call(this, fun, 0);
        }
    }


}
function runClearTimeout(marker) {
    if (cachedClearTimeout === clearTimeout) {
        //normal enviroments in sane situations
        return clearTimeout(marker);
    }
    // if clearTimeout wasn't available but was latter defined
    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
        cachedClearTimeout = clearTimeout;
        return clearTimeout(marker);
    }
    try {
        // when when somebody has screwed with setTimeout but no I.E. maddness
        return cachedClearTimeout(marker);
    } catch (e){
        try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
            return cachedClearTimeout.call(null, marker);
        } catch (e){
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
            return cachedClearTimeout.call(this, marker);
        }
    }



}
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;

function cleanUpNextTick() {
    if (!draining || !currentQueue) {
        return;
    }
    draining = false;
    if (currentQueue.length) {
        queue = currentQueue.concat(queue);
    } else {
        queueIndex = -1;
    }
    if (queue.length) {
        drainQueue();
    }
}

function drainQueue() {
    if (draining) {
        return;
    }
    var timeout = runTimeout(cleanUpNextTick);
    draining = true;

    var len = queue.length;
    while(len) {
        currentQueue = queue;
        queue = [];
        while (++queueIndex < len) {
            if (currentQueue) {
                currentQueue[queueIndex].run();
            }
        }
        queueIndex = -1;
        len = queue.length;
    }
    currentQueue = null;
    draining = false;
    runClearTimeout(timeout);
}

process.nextTick = function (fun) {
    var args = new Array(arguments.length - 1);
    if (arguments.length > 1) {
        for (var i = 1; i < arguments.length; i++) {
            args[i - 1] = arguments[i];
        }
    }
    queue.push(new Item(fun, args));
    if (queue.length === 1 && !draining) {
        runTimeout(drainQueue);
    }
};

// v8 likes predictible objects
function Item(fun, array) {
    this.fun = fun;
    this.array = array;
}
Item.prototype.run = function () {
    this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};

function noop() {}

process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;
process.prependListener = noop;
process.prependOnceListener = noop;

process.listeners = function (name) { return [] }

process.binding = function (name) {
    throw new Error('process.binding is not supported');
};

process.cwd = function () { return '/' };
process.chdir = function (dir) {
    throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };

},{}],319:[function(require,module,exports){
(function (global){
/*! https://mths.be/punycode v1.4.1 by @mathias */
;(function(root) {

	/** Detect free variables */
	var freeExports = typeof exports == 'object' && exports &&
		!exports.nodeType && exports;
	var freeModule = typeof module == 'object' && module &&
		!module.nodeType && module;
	var freeGlobal = typeof global == 'object' && global;
	if (
		freeGlobal.global === freeGlobal ||
		freeGlobal.window === freeGlobal ||
		freeGlobal.self === freeGlobal
	) {
		root = freeGlobal;
	}

	/**
	 * The `punycode` object.
	 * @name punycode
	 * @type Object
	 */
	var punycode,

	/** Highest positive signed 32-bit float value */
	maxInt = 2147483647, // aka. 0x7FFFFFFF or 2^31-1

	/** Bootstring parameters */
	base = 36,
	tMin = 1,
	tMax = 26,
	skew = 38,
	damp = 700,
	initialBias = 72,
	initialN = 128, // 0x80
	delimiter = '-', // '\x2D'

	/** Regular expressions */
	regexPunycode = /^xn--/,
	regexNonASCII = /[^\x20-\x7E]/, // unprintable ASCII chars + non-ASCII chars
	regexSeparators = /[\x2E\u3002\uFF0E\uFF61]/g, // RFC 3490 separators

	/** Error messages */
	errors = {
		'overflow': 'Overflow: input needs wider integers to process',
		'not-basic': 'Illegal input >= 0x80 (not a basic code point)',
		'invalid-input': 'Invalid input'
	},

	/** Convenience shortcuts */
	baseMinusTMin = base - tMin,
	floor = Math.floor,
	stringFromCharCode = String.fromCharCode,

	/** Temporary variable */
	key;

	/*--------------------------------------------------------------------------*/

	/**
	 * A generic error utility function.
	 * @private
	 * @param {String} type The error type.
	 * @returns {Error} Throws a `RangeError` with the applicable error message.
	 */
	function error(type) {
		throw new RangeError(errors[type]);
	}

	/**
	 * A generic `Array#map` utility function.
	 * @private
	 * @param {Array} array The array to iterate over.
	 * @param {Function} callback The function that gets called for every array
	 * item.
	 * @returns {Array} A new array of values returned by the callback function.
	 */
	function map(array, fn) {
		var length = array.length;
		var result = [];
		while (length--) {
			result[length] = fn(array[length]);
		}
		return result;
	}

	/**
	 * A simple `Array#map`-like wrapper to work with domain name strings or email
	 * addresses.
	 * @private
	 * @param {String} domain The domain name or email address.
	 * @param {Function} callback The function that gets called for every
	 * character.
	 * @returns {Array} A new string of characters returned by the callback
	 * function.
	 */
	function mapDomain(string, fn) {
		var parts = string.split('@');
		var result = '';
		if (parts.length > 1) {
			// In email addresses, only the domain name should be punycoded. Leave
			// the local part (i.e. everything up to `@`) intact.
			result = parts[0] + '@';
			string = parts[1];
		}
		// Avoid `split(regex)` for IE8 compatibility. See #17.
		string = string.replace(regexSeparators, '\x2E');
		var labels = string.split('.');
		var encoded = map(labels, fn).join('.');
		return result + encoded;
	}

	/**
	 * Creates an array containing the numeric code points of each Unicode
	 * character in the string. While JavaScript uses UCS-2 internally,
	 * this function will convert a pair of surrogate halves (each of which
	 * UCS-2 exposes as separate characters) into a single code point,
	 * matching UTF-16.
	 * @see `punycode.ucs2.encode`
	 * @see <https://mathiasbynens.be/notes/javascript-encoding>
	 * @memberOf punycode.ucs2
	 * @name decode
	 * @param {String} string The Unicode input string (UCS-2).
	 * @returns {Array} The new array of code points.
	 */
	function ucs2decode(string) {
		var output = [],
		    counter = 0,
		    length = string.length,
		    value,
		    extra;
		while (counter < length) {
			value = string.charCodeAt(counter++);
			if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
				// high surrogate, and there is a next character
				extra = string.charCodeAt(counter++);
				if ((extra & 0xFC00) == 0xDC00) { // low surrogate
					output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
				} else {
					// unmatched surrogate; only append this code unit, in case the next
					// code unit is the high surrogate of a surrogate pair
					output.push(value);
					counter--;
				}
			} else {
				output.push(value);
			}
		}
		return output;
	}

	/**
	 * Creates a string based on an array of numeric code points.
	 * @see `punycode.ucs2.decode`
	 * @memberOf punycode.ucs2
	 * @name encode
	 * @param {Array} codePoints The array of numeric code points.
	 * @returns {String} The new Unicode string (UCS-2).
	 */
	function ucs2encode(array) {
		return map(array, function(value) {
			var output = '';
			if (value > 0xFFFF) {
				value -= 0x10000;
				output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
				value = 0xDC00 | value & 0x3FF;
			}
			output += stringFromCharCode(value);
			return output;
		}).join('');
	}

	/**
	 * Converts a basic code point into a digit/integer.
	 * @see `digitToBasic()`
	 * @private
	 * @param {Number} codePoint The basic numeric code point value.
	 * @returns {Number} The numeric value of a basic code point (for use in
	 * representing integers) in the range `0` to `base - 1`, or `base` if
	 * the code point does not represent a value.
	 */
	function basicToDigit(codePoint) {
		if (codePoint - 48 < 10) {
			return codePoint - 22;
		}
		if (codePoint - 65 < 26) {
			return codePoint - 65;
		}
		if (codePoint - 97 < 26) {
			return codePoint - 97;
		}
		return base;
	}

	/**
	 * Converts a digit/integer into a basic code point.
	 * @see `basicToDigit()`
	 * @private
	 * @param {Number} digit The numeric value of a basic code point.
	 * @returns {Number} The basic code point whose value (when used for
	 * representing integers) is `digit`, which needs to be in the range
	 * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is
	 * used; else, the lowercase form is used. The behavior is undefined
	 * if `flag` is non-zero and `digit` has no uppercase form.
	 */
	function digitToBasic(digit, flag) {
		//  0..25 map to ASCII a..z or A..Z
		// 26..35 map to ASCII 0..9
		return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);
	}

	/**
	 * Bias adaptation function as per section 3.4 of RFC 3492.
	 * https://tools.ietf.org/html/rfc3492#section-3.4
	 * @private
	 */
	function adapt(delta, numPoints, firstTime) {
		var k = 0;
		delta = firstTime ? floor(delta / damp) : delta >> 1;
		delta += floor(delta / numPoints);
		for (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) {
			delta = floor(delta / baseMinusTMin);
		}
		return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));
	}

	/**
	 * Converts a Punycode string of ASCII-only symbols to a string of Unicode
	 * symbols.
	 * @memberOf punycode
	 * @param {String} input The Punycode string of ASCII-only symbols.
	 * @returns {String} The resulting string of Unicode symbols.
	 */
	function decode(input) {
		// Don't use UCS-2
		var output = [],
		    inputLength = input.length,
		    out,
		    i = 0,
		    n = initialN,
		    bias = initialBias,
		    basic,
		    j,
		    index,
		    oldi,
		    w,
		    k,
		    digit,
		    t,
		    /** Cached calculation results */
		    baseMinusT;

		// Handle the basic code points: let `basic` be the number of input code
		// points before the last delimiter, or `0` if there is none, then copy
		// the first basic code points to the output.

		basic = input.lastIndexOf(delimiter);
		if (basic < 0) {
			basic = 0;
		}

		for (j = 0; j < basic; ++j) {
			// if it's not a basic code point
			if (input.charCodeAt(j) >= 0x80) {
				error('not-basic');
			}
			output.push(input.charCodeAt(j));
		}

		// Main decoding loop: start just after the last delimiter if any basic code
		// points were copied; start at the beginning otherwise.

		for (index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) {

			// `index` is the index of the next character to be consumed.
			// Decode a generalized variable-length integer into `delta`,
			// which gets added to `i`. The overflow checking is easier
			// if we increase `i` as we go, then subtract off its starting
			// value at the end to obtain `delta`.
			for (oldi = i, w = 1, k = base; /* no condition */; k += base) {

				if (index >= inputLength) {
					error('invalid-input');
				}

				digit = basicToDigit(input.charCodeAt(index++));

				if (digit >= base || digit > floor((maxInt - i) / w)) {
					error('overflow');
				}

				i += digit * w;
				t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);

				if (digit < t) {
					break;
				}

				baseMinusT = base - t;
				if (w > floor(maxInt / baseMinusT)) {
					error('overflow');
				}

				w *= baseMinusT;

			}

			out = output.length + 1;
			bias = adapt(i - oldi, out, oldi == 0);

			// `i` was supposed to wrap around from `out` to `0`,
			// incrementing `n` each time, so we'll fix that now:
			if (floor(i / out) > maxInt - n) {
				error('overflow');
			}

			n += floor(i / out);
			i %= out;

			// Insert `n` at position `i` of the output
			output.splice(i++, 0, n);

		}

		return ucs2encode(output);
	}

	/**
	 * Converts a string of Unicode symbols (e.g. a domain name label) to a
	 * Punycode string of ASCII-only symbols.
	 * @memberOf punycode
	 * @param {String} input The string of Unicode symbols.
	 * @returns {String} The resulting Punycode string of ASCII-only symbols.
	 */
	function encode(input) {
		var n,
		    delta,
		    handledCPCount,
		    basicLength,
		    bias,
		    j,
		    m,
		    q,
		    k,
		    t,
		    currentValue,
		    output = [],
		    /** `inputLength` will hold the number of code points in `input`. */
		    inputLength,
		    /** Cached calculation results */
		    handledCPCountPlusOne,
		    baseMinusT,
		    qMinusT;

		// Convert the input in UCS-2 to Unicode
		input = ucs2decode(input);

		// Cache the length
		inputLength = input.length;

		// Initialize the state
		n = initialN;
		delta = 0;
		bias = initialBias;

		// Handle the basic code points
		for (j = 0; j < inputLength; ++j) {
			currentValue = input[j];
			if (currentValue < 0x80) {
				output.push(stringFromCharCode(currentValue));
			}
		}

		handledCPCount = basicLength = output.length;

		// `handledCPCount` is the number of code points that have been handled;
		// `basicLength` is the number of basic code points.

		// Finish the basic string - if it is not empty - with a delimiter
		if (basicLength) {
			output.push(delimiter);
		}

		// Main encoding loop:
		while (handledCPCount < inputLength) {

			// All non-basic code points < n have been handled already. Find the next
			// larger one:
			for (m = maxInt, j = 0; j < inputLength; ++j) {
				currentValue = input[j];
				if (currentValue >= n && currentValue < m) {
					m = currentValue;
				}
			}

			// Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,
			// but guard against overflow
			handledCPCountPlusOne = handledCPCount + 1;
			if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {
				error('overflow');
			}

			delta += (m - n) * handledCPCountPlusOne;
			n = m;

			for (j = 0; j < inputLength; ++j) {
				currentValue = input[j];

				if (currentValue < n && ++delta > maxInt) {
					error('overflow');
				}

				if (currentValue == n) {
					// Represent delta as a generalized variable-length integer
					for (q = delta, k = base; /* no condition */; k += base) {
						t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
						if (q < t) {
							break;
						}
						qMinusT = q - t;
						baseMinusT = base - t;
						output.push(
							stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0))
						);
						q = floor(qMinusT / baseMinusT);
					}

					output.push(stringFromCharCode(digitToBasic(q, 0)));
					bias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength);
					delta = 0;
					++handledCPCount;
				}
			}

			++delta;
			++n;

		}
		return output.join('');
	}

	/**
	 * Converts a Punycode string representing a domain name or an email address
	 * to Unicode. Only the Punycoded parts of the input will be converted, i.e.
	 * it doesn't matter if you call it on a string that has already been
	 * converted to Unicode.
	 * @memberOf punycode
	 * @param {String} input The Punycoded domain name or email address to
	 * convert to Unicode.
	 * @returns {String} The Unicode representation of the given Punycode
	 * string.
	 */
	function toUnicode(input) {
		return mapDomain(input, function(string) {
			return regexPunycode.test(string)
				? decode(string.slice(4).toLowerCase())
				: string;
		});
	}

	/**
	 * Converts a Unicode string representing a domain name or an email address to
	 * Punycode. Only the non-ASCII parts of the domain name will be converted,
	 * i.e. it doesn't matter if you call it with a domain that's already in
	 * ASCII.
	 * @memberOf punycode
	 * @param {String} input The domain name or email address to convert, as a
	 * Unicode string.
	 * @returns {String} The Punycode representation of the given domain name or
	 * email address.
	 */
	function toASCII(input) {
		return mapDomain(input, function(string) {
			return regexNonASCII.test(string)
				? 'xn--' + encode(string)
				: string;
		});
	}

	/*--------------------------------------------------------------------------*/

	/** Define the public API */
	punycode = {
		/**
		 * A string representing the current Punycode.js version number.
		 * @memberOf punycode
		 * @type String
		 */
		'version': '1.4.1',
		/**
		 * An object of methods to convert from JavaScript's internal character
		 * representation (UCS-2) to Unicode code points, and back.
		 * @see <https://mathiasbynens.be/notes/javascript-encoding>
		 * @memberOf punycode
		 * @type Object
		 */
		'ucs2': {
			'decode': ucs2decode,
			'encode': ucs2encode
		},
		'decode': decode,
		'encode': encode,
		'toASCII': toASCII,
		'toUnicode': toUnicode
	};

	/** Expose `punycode` */
	// Some AMD build optimizers, like r.js, check for specific condition patterns
	// like the following:
	if (
		typeof define == 'function' &&
		typeof define.amd == 'object' &&
		define.amd
	) {
		define('punycode', function() {
			return punycode;
		});
	} else if (freeExports && freeModule) {
		if (module.exports == freeExports) {
			// in Node.js, io.js, or RingoJS v0.8.0+
			freeModule.exports = punycode;
		} else {
			// in Narwhal or RingoJS v0.7.0-
			for (key in punycode) {
				punycode.hasOwnProperty(key) && (freeExports[key] = punycode[key]);
			}
		}
	} else {
		// in Rhino or a web browser
		root.punycode = punycode;
	}

}(this));

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],320:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';

// If obj.hasOwnProperty has been overridden, then calling
// obj.hasOwnProperty(prop) will break.
// See: https://github.com/joyent/node/issues/1707
function hasOwnProperty(obj, prop) {
  return Object.prototype.hasOwnProperty.call(obj, prop);
}

module.exports = function(qs, sep, eq, options) {
  sep = sep || '&';
  eq = eq || '=';
  var obj = {};

  if (typeof qs !== 'string' || qs.length === 0) {
    return obj;
  }

  var regexp = /\+/g;
  qs = qs.split(sep);

  var maxKeys = 1000;
  if (options && typeof options.maxKeys === 'number') {
    maxKeys = options.maxKeys;
  }

  var len = qs.length;
  // maxKeys <= 0 means that we should not limit keys count
  if (maxKeys > 0 && len > maxKeys) {
    len = maxKeys;
  }

  for (var i = 0; i < len; ++i) {
    var x = qs[i].replace(regexp, '%20'),
        idx = x.indexOf(eq),
        kstr, vstr, k, v;

    if (idx >= 0) {
      kstr = x.substr(0, idx);
      vstr = x.substr(idx + 1);
    } else {
      kstr = x;
      vstr = '';
    }

    k = decodeURIComponent(kstr);
    v = decodeURIComponent(vstr);

    if (!hasOwnProperty(obj, k)) {
      obj[k] = v;
    } else if (isArray(obj[k])) {
      obj[k].push(v);
    } else {
      obj[k] = [obj[k], v];
    }
  }

  return obj;
};

var isArray = Array.isArray || function (xs) {
  return Object.prototype.toString.call(xs) === '[object Array]';
};

},{}],321:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';

var stringifyPrimitive = function(v) {
  switch (typeof v) {
    case 'string':
      return v;

    case 'boolean':
      return v ? 'true' : 'false';

    case 'number':
      return isFinite(v) ? v : '';

    default:
      return '';
  }
};

module.exports = function(obj, sep, eq, name) {
  sep = sep || '&';
  eq = eq || '=';
  if (obj === null) {
    obj = undefined;
  }

  if (typeof obj === 'object') {
    return map(objectKeys(obj), function(k) {
      var ks = encodeURIComponent(stringifyPrimitive(k)) + eq;
      if (isArray(obj[k])) {
        return map(obj[k], function(v) {
          return ks + encodeURIComponent(stringifyPrimitive(v));
        }).join(sep);
      } else {
        return ks + encodeURIComponent(stringifyPrimitive(obj[k]));
      }
    }).join(sep);

  }

  if (!name) return '';
  return encodeURIComponent(stringifyPrimitive(name)) + eq +
         encodeURIComponent(stringifyPrimitive(obj));
};

var isArray = Array.isArray || function (xs) {
  return Object.prototype.toString.call(xs) === '[object Array]';
};

function map (xs, f) {
  if (xs.map) return xs.map(f);
  var res = [];
  for (var i = 0; i < xs.length; i++) {
    res.push(f(xs[i], i));
  }
  return res;
}

var objectKeys = Object.keys || function (obj) {
  var res = [];
  for (var key in obj) {
    if (Object.prototype.hasOwnProperty.call(obj, key)) res.push(key);
  }
  return res;
};

},{}],322:[function(require,module,exports){
'use strict';

exports.decode = exports.parse = require('./decode');
exports.encode = exports.stringify = require('./encode');

},{"./decode":320,"./encode":321}],323:[function(require,module,exports){
module.exports = require('./lib/_stream_duplex.js');

},{"./lib/_stream_duplex.js":324}],324:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// a duplex stream is just a stream that is both readable and writable.
// Since JS doesn't have multiple prototypal inheritance, this class
// prototypally inherits from Readable, and then parasitically from
// Writable.

'use strict';

/*<replacement>*/

var pna = require('process-nextick-args');
/*</replacement>*/

/*<replacement>*/
var objectKeys = Object.keys || function (obj) {
  var keys = [];
  for (var key in obj) {
    keys.push(key);
  }return keys;
};
/*</replacement>*/

module.exports = Duplex;

/*<replacement>*/
var util = Object.create(require('core-util-is'));
util.inherits = require('inherits');
/*</replacement>*/

var Readable = require('./_stream_readable');
var Writable = require('./_stream_writable');

util.inherits(Duplex, Readable);

{
  // avoid scope creep, the keys array can then be collected
  var keys = objectKeys(Writable.prototype);
  for (var v = 0; v < keys.length; v++) {
    var method = keys[v];
    if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
  }
}

function Duplex(options) {
  if (!(this instanceof Duplex)) return new Duplex(options);

  Readable.call(this, options);
  Writable.call(this, options);

  if (options && options.readable === false) this.readable = false;

  if (options && options.writable === false) this.writable = false;

  this.allowHalfOpen = true;
  if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;

  this.once('end', onend);
}

Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function () {
    return this._writableState.highWaterMark;
  }
});

// the no-half-open enforcer
function onend() {
  // if we allow half-open state, or if the writable side ended,
  // then we're ok.
  if (this.allowHalfOpen || this._writableState.ended) return;

  // no more data can be written.
  // But allow more writes to happen in this tick.
  pna.nextTick(onEndNT, this);
}

function onEndNT(self) {
  self.end();
}

Object.defineProperty(Duplex.prototype, 'destroyed', {
  get: function () {
    if (this._readableState === undefined || this._writableState === undefined) {
      return false;
    }
    return this._readableState.destroyed && this._writableState.destroyed;
  },
  set: function (value) {
    // we ignore the value if the stream
    // has not been initialized yet
    if (this._readableState === undefined || this._writableState === undefined) {
      return;
    }

    // backward compatibility, the user is explicitly
    // managing destroyed
    this._readableState.destroyed = value;
    this._writableState.destroyed = value;
  }
});

Duplex.prototype._destroy = function (err, cb) {
  this.push(null);
  this.end();

  pna.nextTick(cb, err);
};
},{"./_stream_readable":326,"./_stream_writable":328,"core-util-is":293,"inherits":306,"process-nextick-args":317}],325:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// a passthrough stream.
// basically just the most minimal sort of Transform stream.
// Every written chunk gets output as-is.

'use strict';

module.exports = PassThrough;

var Transform = require('./_stream_transform');

/*<replacement>*/
var util = Object.create(require('core-util-is'));
util.inherits = require('inherits');
/*</replacement>*/

util.inherits(PassThrough, Transform);

function PassThrough(options) {
  if (!(this instanceof PassThrough)) return new PassThrough(options);

  Transform.call(this, options);
}

PassThrough.prototype._transform = function (chunk, encoding, cb) {
  cb(null, chunk);
};
},{"./_stream_transform":327,"core-util-is":293,"inherits":306}],326:[function(require,module,exports){
(function (process,global){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';

/*<replacement>*/

var pna = require('process-nextick-args');
/*</replacement>*/

module.exports = Readable;

/*<replacement>*/
var isArray = require('isarray');
/*</replacement>*/

/*<replacement>*/
var Duplex;
/*</replacement>*/

Readable.ReadableState = ReadableState;

/*<replacement>*/
var EE = require('events').EventEmitter;

var EElistenerCount = function (emitter, type) {
  return emitter.listeners(type).length;
};
/*</replacement>*/

/*<replacement>*/
var Stream = require('./internal/streams/stream');
/*</replacement>*/

/*<replacement>*/

var Buffer = require('safe-buffer').Buffer;
var OurUint8Array = global.Uint8Array || function () {};
function _uint8ArrayToBuffer(chunk) {
  return Buffer.from(chunk);
}
function _isUint8Array(obj) {
  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
}

/*</replacement>*/

/*<replacement>*/
var util = Object.create(require('core-util-is'));
util.inherits = require('inherits');
/*</replacement>*/

/*<replacement>*/
var debugUtil = require('util');
var debug = void 0;
if (debugUtil && debugUtil.debuglog) {
  debug = debugUtil.debuglog('stream');
} else {
  debug = function () {};
}
/*</replacement>*/

var BufferList = require('./internal/streams/BufferList');
var destroyImpl = require('./internal/streams/destroy');
var StringDecoder;

util.inherits(Readable, Stream);

var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];

function prependListener(emitter, event, fn) {
  // Sadly this is not cacheable as some libraries bundle their own
  // event emitter implementation with them.
  if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn);

  // This is a hack to make sure that our error handler is attached before any
  // userland ones.  NEVER DO THIS. This is here only because this code needs
  // to continue to work with older versions of Node.js that do not include
  // the prependListener() method. The goal is to eventually remove this hack.
  if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
}

function ReadableState(options, stream) {
  Duplex = Duplex || require('./_stream_duplex');

  options = options || {};

  // Duplex streams are both readable and writable, but share
  // the same options object.
  // However, some cases require setting options to different
  // values for the readable and the writable sides of the duplex stream.
  // These options can be provided separately as readableXXX and writableXXX.
  var isDuplex = stream instanceof Duplex;

  // object stream flag. Used to make read(n) ignore n and to
  // make all the buffer merging and length checks go away
  this.objectMode = !!options.objectMode;

  if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode;

  // the point at which it stops calling _read() to fill the buffer
  // Note: 0 is a valid value, means "don't call _read preemptively ever"
  var hwm = options.highWaterMark;
  var readableHwm = options.readableHighWaterMark;
  var defaultHwm = this.objectMode ? 16 : 16 * 1024;

  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (readableHwm || readableHwm === 0)) this.highWaterMark = readableHwm;else this.highWaterMark = defaultHwm;

  // cast to ints.
  this.highWaterMark = Math.floor(this.highWaterMark);

  // A linked list is used to store data chunks instead of an array because the
  // linked list can remove elements from the beginning faster than
  // array.shift()
  this.buffer = new BufferList();
  this.length = 0;
  this.pipes = null;
  this.pipesCount = 0;
  this.flowing = null;
  this.ended = false;
  this.endEmitted = false;
  this.reading = false;

  // a flag to be able to tell if the event 'readable'/'data' is emitted
  // immediately, or on a later tick.  We set this to true at first, because
  // any actions that shouldn't happen until "later" should generally also
  // not happen before the first read call.
  this.sync = true;

  // whenever we return null, then we set a flag to say
  // that we're awaiting a 'readable' event emission.
  this.needReadable = false;
  this.emittedReadable = false;
  this.readableListening = false;
  this.resumeScheduled = false;

  // has it been destroyed
  this.destroyed = false;

  // Crypto is kind of old and crusty.  Historically, its default string
  // encoding is 'binary' so we have to make this configurable.
  // Everything else in the universe uses 'utf8', though.
  this.defaultEncoding = options.defaultEncoding || 'utf8';

  // the number of writers that are awaiting a drain event in .pipe()s
  this.awaitDrain = 0;

  // if true, a maybeReadMore has been scheduled
  this.readingMore = false;

  this.decoder = null;
  this.encoding = null;
  if (options.encoding) {
    if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
    this.decoder = new StringDecoder(options.encoding);
    this.encoding = options.encoding;
  }
}

function Readable(options) {
  Duplex = Duplex || require('./_stream_duplex');

  if (!(this instanceof Readable)) return new Readable(options);

  this._readableState = new ReadableState(options, this);

  // legacy
  this.readable = true;

  if (options) {
    if (typeof options.read === 'function') this._read = options.read;

    if (typeof options.destroy === 'function') this._destroy = options.destroy;
  }

  Stream.call(this);
}

Object.defineProperty(Readable.prototype, 'destroyed', {
  get: function () {
    if (this._readableState === undefined) {
      return false;
    }
    return this._readableState.destroyed;
  },
  set: function (value) {
    // we ignore the value if the stream
    // has not been initialized yet
    if (!this._readableState) {
      return;
    }

    // backward compatibility, the user is explicitly
    // managing destroyed
    this._readableState.destroyed = value;
  }
});

Readable.prototype.destroy = destroyImpl.destroy;
Readable.prototype._undestroy = destroyImpl.undestroy;
Readable.prototype._destroy = function (err, cb) {
  this.push(null);
  cb(err);
};

// Manually shove something into the read() buffer.
// This returns true if the highWaterMark has not been hit yet,
// similar to how Writable.write() returns true if you should
// write() some more.
Readable.prototype.push = function (chunk, encoding) {
  var state = this._readableState;
  var skipChunkCheck;

  if (!state.objectMode) {
    if (typeof chunk === 'string') {
      encoding = encoding || state.defaultEncoding;
      if (encoding !== state.encoding) {
        chunk = Buffer.from(chunk, encoding);
        encoding = '';
      }
      skipChunkCheck = true;
    }
  } else {
    skipChunkCheck = true;
  }

  return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
};

// Unshift should *always* be something directly out of read()
Readable.prototype.unshift = function (chunk) {
  return readableAddChunk(this, chunk, null, true, false);
};

function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
  var state = stream._readableState;
  if (chunk === null) {
    state.reading = false;
    onEofChunk(stream, state);
  } else {
    var er;
    if (!skipChunkCheck) er = chunkInvalid(state, chunk);
    if (er) {
      stream.emit('error', er);
    } else if (state.objectMode || chunk && chunk.length > 0) {
      if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
        chunk = _uint8ArrayToBuffer(chunk);
      }

      if (addToFront) {
        if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true);
      } else if (state.ended) {
        stream.emit('error', new Error('stream.push() after EOF'));
      } else {
        state.reading = false;
        if (state.decoder && !encoding) {
          chunk = state.decoder.write(chunk);
          if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
        } else {
          addChunk(stream, state, chunk, false);
        }
      }
    } else if (!addToFront) {
      state.reading = false;
    }
  }

  return needMoreData(state);
}

function addChunk(stream, state, chunk, addToFront) {
  if (state.flowing && state.length === 0 && !state.sync) {
    stream.emit('data', chunk);
    stream.read(0);
  } else {
    // update the buffer info.
    state.length += state.objectMode ? 1 : chunk.length;
    if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);

    if (state.needReadable) emitReadable(stream);
  }
  maybeReadMore(stream, state);
}

function chunkInvalid(state, chunk) {
  var er;
  if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
    er = new TypeError('Invalid non-string/buffer chunk');
  }
  return er;
}

// if it's past the high water mark, we can push in some more.
// Also, if we have no data yet, we can stand some
// more bytes.  This is to work around cases where hwm=0,
// such as the repl.  Also, if the push() triggered a
// readable event, and the user called read(largeNumber) such that
// needReadable was set, then we ought to push more, so that another
// 'readable' event will be triggered.
function needMoreData(state) {
  return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
}

Readable.prototype.isPaused = function () {
  return this._readableState.flowing === false;
};

// backwards compatibility.
Readable.prototype.setEncoding = function (enc) {
  if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
  this._readableState.decoder = new StringDecoder(enc);
  this._readableState.encoding = enc;
  return this;
};

// Don't raise the hwm > 8MB
var MAX_HWM = 0x800000;
function computeNewHighWaterMark(n) {
  if (n >= MAX_HWM) {
    n = MAX_HWM;
  } else {
    // Get the next highest power of 2 to prevent increasing hwm excessively in
    // tiny amounts
    n--;
    n |= n >>> 1;
    n |= n >>> 2;
    n |= n >>> 4;
    n |= n >>> 8;
    n |= n >>> 16;
    n++;
  }
  return n;
}

// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function howMuchToRead(n, state) {
  if (n <= 0 || state.length === 0 && state.ended) return 0;
  if (state.objectMode) return 1;
  if (n !== n) {
    // Only flow one buffer at a time
    if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
  }
  // If we're asking for more than the current hwm, then raise the hwm.
  if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
  if (n <= state.length) return n;
  // Don't have enough
  if (!state.ended) {
    state.needReadable = true;
    return 0;
  }
  return state.length;
}

// you can override either this method, or the async _read(n) below.
Readable.prototype.read = function (n) {
  debug('read', n);
  n = parseInt(n, 10);
  var state = this._readableState;
  var nOrig = n;

  if (n !== 0) state.emittedReadable = false;

  // if we're doing read(0) to trigger a readable event, but we
  // already have a bunch of data in the buffer, then just trigger
  // the 'readable' event and move on.
  if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {
    debug('read: emitReadable', state.length, state.ended);
    if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
    return null;
  }

  n = howMuchToRead(n, state);

  // if we've ended, and we're now clear, then finish it up.
  if (n === 0 && state.ended) {
    if (state.length === 0) endReadable(this);
    return null;
  }

  // All the actual chunk generation logic needs to be
  // *below* the call to _read.  The reason is that in certain
  // synthetic stream cases, such as passthrough streams, _read
  // may be a completely synchronous operation which may change
  // the state of the read buffer, providing enough data when
  // before there was *not* enough.
  //
  // So, the steps are:
  // 1. Figure out what the state of things will be after we do
  // a read from the buffer.
  //
  // 2. If that resulting state will trigger a _read, then call _read.
  // Note that this may be asynchronous, or synchronous.  Yes, it is
  // deeply ugly to write APIs this way, but that still doesn't mean
  // that the Readable class should behave improperly, as streams are
  // designed to be sync/async agnostic.
  // Take note if the _read call is sync or async (ie, if the read call
  // has returned yet), so that we know whether or not it's safe to emit
  // 'readable' etc.
  //
  // 3. Actually pull the requested chunks out of the buffer and return.

  // if we need a readable event, then we need to do some reading.
  var doRead = state.needReadable;
  debug('need readable', doRead);

  // if we currently have less than the highWaterMark, then also read some
  if (state.length === 0 || state.length - n < state.highWaterMark) {
    doRead = true;
    debug('length less than watermark', doRead);
  }

  // however, if we've ended, then there's no point, and if we're already
  // reading, then it's unnecessary.
  if (state.ended || state.reading) {
    doRead = false;
    debug('reading or ended', doRead);
  } else if (doRead) {
    debug('do read');
    state.reading = true;
    state.sync = true;
    // if the length is currently zero, then we *need* a readable event.
    if (state.length === 0) state.needReadable = true;
    // call internal read method
    this._read(state.highWaterMark);
    state.sync = false;
    // If _read pushed data synchronously, then `reading` will be false,
    // and we need to re-evaluate how much data we can return to the user.
    if (!state.reading) n = howMuchToRead(nOrig, state);
  }

  var ret;
  if (n > 0) ret = fromList(n, state);else ret = null;

  if (ret === null) {
    state.needReadable = true;
    n = 0;
  } else {
    state.length -= n;
  }

  if (state.length === 0) {
    // If we have nothing in the buffer, then we want to know
    // as soon as we *do* get something into the buffer.
    if (!state.ended) state.needReadable = true;

    // If we tried to read() past the EOF, then emit end on the next tick.
    if (nOrig !== n && state.ended) endReadable(this);
  }

  if (ret !== null) this.emit('data', ret);

  return ret;
};

function onEofChunk(stream, state) {
  if (state.ended) return;
  if (state.decoder) {
    var chunk = state.decoder.end();
    if (chunk && chunk.length) {
      state.buffer.push(chunk);
      state.length += state.objectMode ? 1 : chunk.length;
    }
  }
  state.ended = true;

  // emit 'readable' now to make sure it gets picked up.
  emitReadable(stream);
}

// Don't emit readable right away in sync mode, because this can trigger
// another read() call => stack overflow.  This way, it might trigger
// a nextTick recursion warning, but that's not so bad.
function emitReadable(stream) {
  var state = stream._readableState;
  state.needReadable = false;
  if (!state.emittedReadable) {
    debug('emitReadable', state.flowing);
    state.emittedReadable = true;
    if (state.sync) pna.nextTick(emitReadable_, stream);else emitReadable_(stream);
  }
}

function emitReadable_(stream) {
  debug('emit readable');
  stream.emit('readable');
  flow(stream);
}

// at this point, the user has presumably seen the 'readable' event,
// and called read() to consume some data.  that may have triggered
// in turn another _read(n) call, in which case reading = true if
// it's in progress.
// However, if we're not ended, or reading, and the length < hwm,
// then go ahead and try to read some more preemptively.
function maybeReadMore(stream, state) {
  if (!state.readingMore) {
    state.readingMore = true;
    pna.nextTick(maybeReadMore_, stream, state);
  }
}

function maybeReadMore_(stream, state) {
  var len = state.length;
  while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {
    debug('maybeReadMore read 0');
    stream.read(0);
    if (len === state.length)
      // didn't get any data, stop spinning.
      break;else len = state.length;
  }
  state.readingMore = false;
}

// abstract method.  to be overridden in specific implementation classes.
// call cb(er, data) where data is <= n in length.
// for virtual (non-string, non-buffer) streams, "length" is somewhat
// arbitrary, and perhaps not very meaningful.
Readable.prototype._read = function (n) {
  this.emit('error', new Error('_read() is not implemented'));
};

Readable.prototype.pipe = function (dest, pipeOpts) {
  var src = this;
  var state = this._readableState;

  switch (state.pipesCount) {
    case 0:
      state.pipes = dest;
      break;
    case 1:
      state.pipes = [state.pipes, dest];
      break;
    default:
      state.pipes.push(dest);
      break;
  }
  state.pipesCount += 1;
  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);

  var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;

  var endFn = doEnd ? onend : unpipe;
  if (state.endEmitted) pna.nextTick(endFn);else src.once('end', endFn);

  dest.on('unpipe', onunpipe);
  function onunpipe(readable, unpipeInfo) {
    debug('onunpipe');
    if (readable === src) {
      if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
        unpipeInfo.hasUnpiped = true;
        cleanup();
      }
    }
  }

  function onend() {
    debug('onend');
    dest.end();
  }

  // when the dest drains, it reduces the awaitDrain counter
  // on the source.  This would be more elegant with a .once()
  // handler in flow(), but adding and removing repeatedly is
  // too slow.
  var ondrain = pipeOnDrain(src);
  dest.on('drain', ondrain);

  var cleanedUp = false;
  function cleanup() {
    debug('cleanup');
    // cleanup event handlers once the pipe is broken
    dest.removeListener('close', onclose);
    dest.removeListener('finish', onfinish);
    dest.removeListener('drain', ondrain);
    dest.removeListener('error', onerror);
    dest.removeListener('unpipe', onunpipe);
    src.removeListener('end', onend);
    src.removeListener('end', unpipe);
    src.removeListener('data', ondata);

    cleanedUp = true;

    // if the reader is waiting for a drain event from this
    // specific writer, then it would cause it to never start
    // flowing again.
    // So, if this is awaiting a drain, then we just call it now.
    // If we don't know, then assume that we are waiting for one.
    if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
  }

  // If the user pushes more data while we're writing to dest then we'll end up
  // in ondata again. However, we only want to increase awaitDrain once because
  // dest will only emit one 'drain' event for the multiple writes.
  // => Introduce a guard on increasing awaitDrain.
  var increasedAwaitDrain = false;
  src.on('data', ondata);
  function ondata(chunk) {
    debug('ondata');
    increasedAwaitDrain = false;
    var ret = dest.write(chunk);
    if (false === ret && !increasedAwaitDrain) {
      // If the user unpiped during `dest.write()`, it is possible
      // to get stuck in a permanently paused state if that write
      // also returned false.
      // => Check whether `dest` is still a piping destination.
      if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
        debug('false write response, pause', src._readableState.awaitDrain);
        src._readableState.awaitDrain++;
        increasedAwaitDrain = true;
      }
      src.pause();
    }
  }

  // if the dest has an error, then stop piping into it.
  // however, don't suppress the throwing behavior for this.
  function onerror(er) {
    debug('onerror', er);
    unpipe();
    dest.removeListener('error', onerror);
    if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);
  }

  // Make sure our error handler is attached before userland ones.
  prependListener(dest, 'error', onerror);

  // Both close and finish should trigger unpipe, but only once.
  function onclose() {
    dest.removeListener('finish', onfinish);
    unpipe();
  }
  dest.once('close', onclose);
  function onfinish() {
    debug('onfinish');
    dest.removeListener('close', onclose);
    unpipe();
  }
  dest.once('finish', onfinish);

  function unpipe() {
    debug('unpipe');
    src.unpipe(dest);
  }

  // tell the dest that it's being piped to
  dest.emit('pipe', src);

  // start the flow if it hasn't been started already.
  if (!state.flowing) {
    debug('pipe resume');
    src.resume();
  }

  return dest;
};

function pipeOnDrain(src) {
  return function () {
    var state = src._readableState;
    debug('pipeOnDrain', state.awaitDrain);
    if (state.awaitDrain) state.awaitDrain--;
    if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
      state.flowing = true;
      flow(src);
    }
  };
}

Readable.prototype.unpipe = function (dest) {
  var state = this._readableState;
  var unpipeInfo = { hasUnpiped: false };

  // if we're not piping anywhere, then do nothing.
  if (state.pipesCount === 0) return this;

  // just one destination.  most common case.
  if (state.pipesCount === 1) {
    // passed in one, but it's not the right one.
    if (dest && dest !== state.pipes) return this;

    if (!dest) dest = state.pipes;

    // got a match.
    state.pipes = null;
    state.pipesCount = 0;
    state.flowing = false;
    if (dest) dest.emit('unpipe', this, unpipeInfo);
    return this;
  }

  // slow case. multiple pipe destinations.

  if (!dest) {
    // remove all.
    var dests = state.pipes;
    var len = state.pipesCount;
    state.pipes = null;
    state.pipesCount = 0;
    state.flowing = false;

    for (var i = 0; i < len; i++) {
      dests[i].emit('unpipe', this, unpipeInfo);
    }return this;
  }

  // try to find the right one.
  var index = indexOf(state.pipes, dest);
  if (index === -1) return this;

  state.pipes.splice(index, 1);
  state.pipesCount -= 1;
  if (state.pipesCount === 1) state.pipes = state.pipes[0];

  dest.emit('unpipe', this, unpipeInfo);

  return this;
};

// set up data events if they are asked for
// Ensure readable listeners eventually get something
Readable.prototype.on = function (ev, fn) {
  var res = Stream.prototype.on.call(this, ev, fn);

  if (ev === 'data') {
    // Start flowing on next tick if stream isn't explicitly paused
    if (this._readableState.flowing !== false) this.resume();
  } else if (ev === 'readable') {
    var state = this._readableState;
    if (!state.endEmitted && !state.readableListening) {
      state.readableListening = state.needReadable = true;
      state.emittedReadable = false;
      if (!state.reading) {
        pna.nextTick(nReadingNextTick, this);
      } else if (state.length) {
        emitReadable(this);
      }
    }
  }

  return res;
};
Readable.prototype.addListener = Readable.prototype.on;

function nReadingNextTick(self) {
  debug('readable nexttick read 0');
  self.read(0);
}

// pause() and resume() are remnants of the legacy readable stream API
// If the user uses them, then switch into old mode.
Readable.prototype.resume = function () {
  var state = this._readableState;
  if (!state.flowing) {
    debug('resume');
    state.flowing = true;
    resume(this, state);
  }
  return this;
};

function resume(stream, state) {
  if (!state.resumeScheduled) {
    state.resumeScheduled = true;
    pna.nextTick(resume_, stream, state);
  }
}

function resume_(stream, state) {
  if (!state.reading) {
    debug('resume read 0');
    stream.read(0);
  }

  state.resumeScheduled = false;
  state.awaitDrain = 0;
  stream.emit('resume');
  flow(stream);
  if (state.flowing && !state.reading) stream.read(0);
}

Readable.prototype.pause = function () {
  debug('call pause flowing=%j', this._readableState.flowing);
  if (false !== this._readableState.flowing) {
    debug('pause');
    this._readableState.flowing = false;
    this.emit('pause');
  }
  return this;
};

function flow(stream) {
  var state = stream._readableState;
  debug('flow', state.flowing);
  while (state.flowing && stream.read() !== null) {}
}

// wrap an old-style stream as the async data source.
// This is *not* part of the readable stream interface.
// It is an ugly unfortunate mess of history.
Readable.prototype.wrap = function (stream) {
  var _this = this;

  var state = this._readableState;
  var paused = false;

  stream.on('end', function () {
    debug('wrapped end');
    if (state.decoder && !state.ended) {
      var chunk = state.decoder.end();
      if (chunk && chunk.length) _this.push(chunk);
    }

    _this.push(null);
  });

  stream.on('data', function (chunk) {
    debug('wrapped data');
    if (state.decoder) chunk = state.decoder.write(chunk);

    // don't skip over falsy values in objectMode
    if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;

    var ret = _this.push(chunk);
    if (!ret) {
      paused = true;
      stream.pause();
    }
  });

  // proxy all the other methods.
  // important when wrapping filters and duplexes.
  for (var i in stream) {
    if (this[i] === undefined && typeof stream[i] === 'function') {
      this[i] = function (method) {
        return function () {
          return stream[method].apply(stream, arguments);
        };
      }(i);
    }
  }

  // proxy certain important events.
  for (var n = 0; n < kProxyEvents.length; n++) {
    stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));
  }

  // when we try to consume some more bytes, simply unpause the
  // underlying stream.
  this._read = function (n) {
    debug('wrapped _read', n);
    if (paused) {
      paused = false;
      stream.resume();
    }
  };

  return this;
};

Object.defineProperty(Readable.prototype, 'readableHighWaterMark', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function () {
    return this._readableState.highWaterMark;
  }
});

// exposed for testing purposes only.
Readable._fromList = fromList;

// Pluck off n bytes from an array of buffers.
// Length is the combined lengths of all the buffers in the list.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function fromList(n, state) {
  // nothing buffered
  if (state.length === 0) return null;

  var ret;
  if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
    // read it all, truncate the list
    if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length);
    state.buffer.clear();
  } else {
    // read part of list
    ret = fromListPartial(n, state.buffer, state.decoder);
  }

  return ret;
}

// Extracts only enough buffered data to satisfy the amount requested.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function fromListPartial(n, list, hasStrings) {
  var ret;
  if (n < list.head.data.length) {
    // slice is the same for buffers and strings
    ret = list.head.data.slice(0, n);
    list.head.data = list.head.data.slice(n);
  } else if (n === list.head.data.length) {
    // first chunk is a perfect match
    ret = list.shift();
  } else {
    // result spans more than one buffer
    ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);
  }
  return ret;
}

// Copies a specified amount of characters from the list of buffered data
// chunks.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function copyFromBufferString(n, list) {
  var p = list.head;
  var c = 1;
  var ret = p.data;
  n -= ret.length;
  while (p = p.next) {
    var str = p.data;
    var nb = n > str.length ? str.length : n;
    if (nb === str.length) ret += str;else ret += str.slice(0, n);
    n -= nb;
    if (n === 0) {
      if (nb === str.length) {
        ++c;
        if (p.next) list.head = p.next;else list.head = list.tail = null;
      } else {
        list.head = p;
        p.data = str.slice(nb);
      }
      break;
    }
    ++c;
  }
  list.length -= c;
  return ret;
}

// Copies a specified amount of bytes from the list of buffered data chunks.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function copyFromBuffer(n, list) {
  var ret = Buffer.allocUnsafe(n);
  var p = list.head;
  var c = 1;
  p.data.copy(ret);
  n -= p.data.length;
  while (p = p.next) {
    var buf = p.data;
    var nb = n > buf.length ? buf.length : n;
    buf.copy(ret, ret.length - n, 0, nb);
    n -= nb;
    if (n === 0) {
      if (nb === buf.length) {
        ++c;
        if (p.next) list.head = p.next;else list.head = list.tail = null;
      } else {
        list.head = p;
        p.data = buf.slice(nb);
      }
      break;
    }
    ++c;
  }
  list.length -= c;
  return ret;
}

function endReadable(stream) {
  var state = stream._readableState;

  // If we get here before consuming all the bytes, then that is a
  // bug in node.  Should never happen.
  if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream');

  if (!state.endEmitted) {
    state.ended = true;
    pna.nextTick(endReadableNT, state, stream);
  }
}

function endReadableNT(state, stream) {
  // Check that we didn't get one last unshift.
  if (!state.endEmitted && state.length === 0) {
    state.endEmitted = true;
    stream.readable = false;
    stream.emit('end');
  }
}

function indexOf(xs, x) {
  for (var i = 0, l = xs.length; i < l; i++) {
    if (xs[i] === x) return i;
  }
  return -1;
}
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./_stream_duplex":324,"./internal/streams/BufferList":329,"./internal/streams/destroy":330,"./internal/streams/stream":331,"_process":392,"core-util-is":293,"events":296,"inherits":306,"isarray":308,"process-nextick-args":317,"safe-buffer":337,"string_decoder/":340,"util":79}],327:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// a transform stream is a readable/writable stream where you do
// something with the data.  Sometimes it's called a "filter",
// but that's not a great name for it, since that implies a thing where
// some bits pass through, and others are simply ignored.  (That would
// be a valid example of a transform, of course.)
//
// While the output is causally related to the input, it's not a
// necessarily symmetric or synchronous transformation.  For example,
// a zlib stream might take multiple plain-text writes(), and then
// emit a single compressed chunk some time in the future.
//
// Here's how this works:
//
// The Transform stream has all the aspects of the readable and writable
// stream classes.  When you write(chunk), that calls _write(chunk,cb)
// internally, and returns false if there's a lot of pending writes
// buffered up.  When you call read(), that calls _read(n) until
// there's enough pending readable data buffered up.
//
// In a transform stream, the written data is placed in a buffer.  When
// _read(n) is called, it transforms the queued up data, calling the
// buffered _write cb's as it consumes chunks.  If consuming a single
// written chunk would result in multiple output chunks, then the first
// outputted bit calls the readcb, and subsequent chunks just go into
// the read buffer, and will cause it to emit 'readable' if necessary.
//
// This way, back-pressure is actually determined by the reading side,
// since _read has to be called to start processing a new chunk.  However,
// a pathological inflate type of transform can cause excessive buffering
// here.  For example, imagine a stream where every byte of input is
// interpreted as an integer from 0-255, and then results in that many
// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
// 1kb of data being output.  In this case, you could write a very small
// amount of input, and end up with a very large amount of output.  In
// such a pathological inflating mechanism, there'd be no way to tell
// the system to stop doing the transform.  A single 4MB write could
// cause the system to run out of memory.
//
// However, even in such a pathological case, only a single written chunk
// would be consumed, and then the rest would wait (un-transformed) until
// the results of the previous transformed chunk were consumed.

'use strict';

module.exports = Transform;

var Duplex = require('./_stream_duplex');

/*<replacement>*/
var util = Object.create(require('core-util-is'));
util.inherits = require('inherits');
/*</replacement>*/

util.inherits(Transform, Duplex);

function afterTransform(er, data) {
  var ts = this._transformState;
  ts.transforming = false;

  var cb = ts.writecb;

  if (!cb) {
    return this.emit('error', new Error('write callback called multiple times'));
  }

  ts.writechunk = null;
  ts.writecb = null;

  if (data != null) // single equals check for both `null` and `undefined`
    this.push(data);

  cb(er);

  var rs = this._readableState;
  rs.reading = false;
  if (rs.needReadable || rs.length < rs.highWaterMark) {
    this._read(rs.highWaterMark);
  }
}

function Transform(options) {
  if (!(this instanceof Transform)) return new Transform(options);

  Duplex.call(this, options);

  this._transformState = {
    afterTransform: afterTransform.bind(this),
    needTransform: false,
    transforming: false,
    writecb: null,
    writechunk: null,
    writeencoding: null
  };

  // start out asking for a readable event once data is transformed.
  this._readableState.needReadable = true;

  // we have implemented the _read method, and done the other things
  // that Readable wants before the first _read call, so unset the
  // sync guard flag.
  this._readableState.sync = false;

  if (options) {
    if (typeof options.transform === 'function') this._transform = options.transform;

    if (typeof options.flush === 'function') this._flush = options.flush;
  }

  // When the writable side finishes, then flush out anything remaining.
  this.on('prefinish', prefinish);
}

function prefinish() {
  var _this = this;

  if (typeof this._flush === 'function') {
    this._flush(function (er, data) {
      done(_this, er, data);
    });
  } else {
    done(this, null, null);
  }
}

Transform.prototype.push = function (chunk, encoding) {
  this._transformState.needTransform = false;
  return Duplex.prototype.push.call(this, chunk, encoding);
};

// This is the part where you do stuff!
// override this function in implementation classes.
// 'chunk' is an input chunk.
//
// Call `push(newChunk)` to pass along transformed output
// to the readable side.  You may call 'push' zero or more times.
//
// Call `cb(err)` when you are done with this chunk.  If you pass
// an error, then that'll put the hurt on the whole operation.  If you
// never call cb(), then you'll never get another chunk.
Transform.prototype._transform = function (chunk, encoding, cb) {
  throw new Error('_transform() is not implemented');
};

Transform.prototype._write = function (chunk, encoding, cb) {
  var ts = this._transformState;
  ts.writecb = cb;
  ts.writechunk = chunk;
  ts.writeencoding = encoding;
  if (!ts.transforming) {
    var rs = this._readableState;
    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
  }
};

// Doesn't matter what the args are here.
// _transform does all the work.
// That we got here means that the readable side wants more data.
Transform.prototype._read = function (n) {
  var ts = this._transformState;

  if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
    ts.transforming = true;
    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
  } else {
    // mark that we need a transform, so that any data that comes in
    // will get processed, now that we've asked for it.
    ts.needTransform = true;
  }
};

Transform.prototype._destroy = function (err, cb) {
  var _this2 = this;

  Duplex.prototype._destroy.call(this, err, function (err2) {
    cb(err2);
    _this2.emit('close');
  });
};

function done(stream, er, data) {
  if (er) return stream.emit('error', er);

  if (data != null) // single equals check for both `null` and `undefined`
    stream.push(data);

  // if there's nothing in the write buffer, then that means
  // that nothing more will ever be provided
  if (stream._writableState.length) throw new Error('Calling transform done when ws.length != 0');

  if (stream._transformState.transforming) throw new Error('Calling transform done when still transforming');

  return stream.push(null);
}
},{"./_stream_duplex":324,"core-util-is":293,"inherits":306}],328:[function(require,module,exports){
(function (process,global,setImmediate){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// A bit simpler than readable streams.
// Implement an async ._write(chunk, encoding, cb), and it'll handle all
// the drain event emission and buffering.

'use strict';

/*<replacement>*/

var pna = require('process-nextick-args');
/*</replacement>*/

module.exports = Writable;

/* <replacement> */
function WriteReq(chunk, encoding, cb) {
  this.chunk = chunk;
  this.encoding = encoding;
  this.callback = cb;
  this.next = null;
}

// It seems a linked list but it is not
// there will be only 2 of these for each stream
function CorkedRequest(state) {
  var _this = this;

  this.next = null;
  this.entry = null;
  this.finish = function () {
    onCorkedFinish(_this, state);
  };
}
/* </replacement> */

/*<replacement>*/
var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : pna.nextTick;
/*</replacement>*/

/*<replacement>*/
var Duplex;
/*</replacement>*/

Writable.WritableState = WritableState;

/*<replacement>*/
var util = Object.create(require('core-util-is'));
util.inherits = require('inherits');
/*</replacement>*/

/*<replacement>*/
var internalUtil = {
  deprecate: require('util-deprecate')
};
/*</replacement>*/

/*<replacement>*/
var Stream = require('./internal/streams/stream');
/*</replacement>*/

/*<replacement>*/

var Buffer = require('safe-buffer').Buffer;
var OurUint8Array = global.Uint8Array || function () {};
function _uint8ArrayToBuffer(chunk) {
  return Buffer.from(chunk);
}
function _isUint8Array(obj) {
  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
}

/*</replacement>*/

var destroyImpl = require('./internal/streams/destroy');

util.inherits(Writable, Stream);

function nop() {}

function WritableState(options, stream) {
  Duplex = Duplex || require('./_stream_duplex');

  options = options || {};

  // Duplex streams are both readable and writable, but share
  // the same options object.
  // However, some cases require setting options to different
  // values for the readable and the writable sides of the duplex stream.
  // These options can be provided separately as readableXXX and writableXXX.
  var isDuplex = stream instanceof Duplex;

  // object stream flag to indicate whether or not this stream
  // contains buffers or objects.
  this.objectMode = !!options.objectMode;

  if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode;

  // the point at which write() starts returning false
  // Note: 0 is a valid value, means that we always return false if
  // the entire buffer is not flushed immediately on write()
  var hwm = options.highWaterMark;
  var writableHwm = options.writableHighWaterMark;
  var defaultHwm = this.objectMode ? 16 : 16 * 1024;

  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (writableHwm || writableHwm === 0)) this.highWaterMark = writableHwm;else this.highWaterMark = defaultHwm;

  // cast to ints.
  this.highWaterMark = Math.floor(this.highWaterMark);

  // if _final has been called
  this.finalCalled = false;

  // drain event flag.
  this.needDrain = false;
  // at the start of calling end()
  this.ending = false;
  // when end() has been called, and returned
  this.ended = false;
  // when 'finish' is emitted
  this.finished = false;

  // has it been destroyed
  this.destroyed = false;

  // should we decode strings into buffers before passing to _write?
  // this is here so that some node-core streams can optimize string
  // handling at a lower level.
  var noDecode = options.decodeStrings === false;
  this.decodeStrings = !noDecode;

  // Crypto is kind of old and crusty.  Historically, its default string
  // encoding is 'binary' so we have to make this configurable.
  // Everything else in the universe uses 'utf8', though.
  this.defaultEncoding = options.defaultEncoding || 'utf8';

  // not an actual buffer we keep track of, but a measurement
  // of how much we're waiting to get pushed to some underlying
  // socket or file.
  this.length = 0;

  // a flag to see when we're in the middle of a write.
  this.writing = false;

  // when true all writes will be buffered until .uncork() call
  this.corked = 0;

  // a flag to be able to tell if the onwrite cb is called immediately,
  // or on a later tick.  We set this to true at first, because any
  // actions that shouldn't happen until "later" should generally also
  // not happen before the first write call.
  this.sync = true;

  // a flag to know if we're processing previously buffered items, which
  // may call the _write() callback in the same tick, so that we don't
  // end up in an overlapped onwrite situation.
  this.bufferProcessing = false;

  // the callback that's passed to _write(chunk,cb)
  this.onwrite = function (er) {
    onwrite(stream, er);
  };

  // the callback that the user supplies to write(chunk,encoding,cb)
  this.writecb = null;

  // the amount that is being written when _write is called.
  this.writelen = 0;

  this.bufferedRequest = null;
  this.lastBufferedRequest = null;

  // number of pending user-supplied write callbacks
  // this must be 0 before 'finish' can be emitted
  this.pendingcb = 0;

  // emit prefinish if the only thing we're waiting for is _write cbs
  // This is relevant for synchronous Transform streams
  this.prefinished = false;

  // True if the error was already emitted and should not be thrown again
  this.errorEmitted = false;

  // count buffered requests
  this.bufferedRequestCount = 0;

  // allocate the first CorkedRequest, there is always
  // one allocated and free to use, and we maintain at most two
  this.corkedRequestsFree = new CorkedRequest(this);
}

WritableState.prototype.getBuffer = function getBuffer() {
  var current = this.bufferedRequest;
  var out = [];
  while (current) {
    out.push(current);
    current = current.next;
  }
  return out;
};

(function () {
  try {
    Object.defineProperty(WritableState.prototype, 'buffer', {
      get: internalUtil.deprecate(function () {
        return this.getBuffer();
      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
    });
  } catch (_) {}
})();

// Test _writableState for inheritance to account for Duplex streams,
// whose prototype chain only points to Readable.
var realHasInstance;
if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
  realHasInstance = Function.prototype[Symbol.hasInstance];
  Object.defineProperty(Writable, Symbol.hasInstance, {
    value: function (object) {
      if (realHasInstance.call(this, object)) return true;
      if (this !== Writable) return false;

      return object && object._writableState instanceof WritableState;
    }
  });
} else {
  realHasInstance = function (object) {
    return object instanceof this;
  };
}

function Writable(options) {
  Duplex = Duplex || require('./_stream_duplex');

  // Writable ctor is applied to Duplexes, too.
  // `realHasInstance` is necessary because using plain `instanceof`
  // would return false, as no `_writableState` property is attached.

  // Trying to use the custom `instanceof` for Writable here will also break the
  // Node.js LazyTransform implementation, which has a non-trivial getter for
  // `_writableState` that would lead to infinite recursion.
  if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {
    return new Writable(options);
  }

  this._writableState = new WritableState(options, this);

  // legacy.
  this.writable = true;

  if (options) {
    if (typeof options.write === 'function') this._write = options.write;

    if (typeof options.writev === 'function') this._writev = options.writev;

    if (typeof options.destroy === 'function') this._destroy = options.destroy;

    if (typeof options.final === 'function') this._final = options.final;
  }

  Stream.call(this);
}

// Otherwise people can pipe Writable streams, which is just wrong.
Writable.prototype.pipe = function () {
  this.emit('error', new Error('Cannot pipe, not readable'));
};

function writeAfterEnd(stream, cb) {
  var er = new Error('write after end');
  // TODO: defer error events consistently everywhere, not just the cb
  stream.emit('error', er);
  pna.nextTick(cb, er);
}

// Checks that a user-supplied chunk is valid, especially for the particular
// mode the stream is in. Currently this means that `null` is never accepted
// and undefined/non-string values are only allowed in object mode.
function validChunk(stream, state, chunk, cb) {
  var valid = true;
  var er = false;

  if (chunk === null) {
    er = new TypeError('May not write null values to stream');
  } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
    er = new TypeError('Invalid non-string/buffer chunk');
  }
  if (er) {
    stream.emit('error', er);
    pna.nextTick(cb, er);
    valid = false;
  }
  return valid;
}

Writable.prototype.write = function (chunk, encoding, cb) {
  var state = this._writableState;
  var ret = false;
  var isBuf = !state.objectMode && _isUint8Array(chunk);

  if (isBuf && !Buffer.isBuffer(chunk)) {
    chunk = _uint8ArrayToBuffer(chunk);
  }

  if (typeof encoding === 'function') {
    cb = encoding;
    encoding = null;
  }

  if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;

  if (typeof cb !== 'function') cb = nop;

  if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
    state.pendingcb++;
    ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
  }

  return ret;
};

Writable.prototype.cork = function () {
  var state = this._writableState;

  state.corked++;
};

Writable.prototype.uncork = function () {
  var state = this._writableState;

  if (state.corked) {
    state.corked--;

    if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
  }
};

Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
  // node::ParseEncoding() requires lower case.
  if (typeof encoding === 'string') encoding = encoding.toLowerCase();
  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
  this._writableState.defaultEncoding = encoding;
  return this;
};

function decodeChunk(state, chunk, encoding) {
  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
    chunk = Buffer.from(chunk, encoding);
  }
  return chunk;
}

Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function () {
    return this._writableState.highWaterMark;
  }
});

// if we're already writing something, then just put this
// in the queue, and wait our turn.  Otherwise, call _write
// If we return false, then we need a drain event, so set that flag.
function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
  if (!isBuf) {
    var newChunk = decodeChunk(state, chunk, encoding);
    if (chunk !== newChunk) {
      isBuf = true;
      encoding = 'buffer';
      chunk = newChunk;
    }
  }
  var len = state.objectMode ? 1 : chunk.length;

  state.length += len;

  var ret = state.length < state.highWaterMark;
  // we must ensure that previous needDrain will not be reset to false.
  if (!ret) state.needDrain = true;

  if (state.writing || state.corked) {
    var last = state.lastBufferedRequest;
    state.lastBufferedRequest = {
      chunk: chunk,
      encoding: encoding,
      isBuf: isBuf,
      callback: cb,
      next: null
    };
    if (last) {
      last.next = state.lastBufferedRequest;
    } else {
      state.bufferedRequest = state.lastBufferedRequest;
    }
    state.bufferedRequestCount += 1;
  } else {
    doWrite(stream, state, false, len, chunk, encoding, cb);
  }

  return ret;
}

function doWrite(stream, state, writev, len, chunk, encoding, cb) {
  state.writelen = len;
  state.writecb = cb;
  state.writing = true;
  state.sync = true;
  if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
  state.sync = false;
}

function onwriteError(stream, state, sync, er, cb) {
  --state.pendingcb;

  if (sync) {
    // defer the callback if we are being called synchronously
    // to avoid piling up things on the stack
    pna.nextTick(cb, er);
    // this can emit finish, and it will always happen
    // after error
    pna.nextTick(finishMaybe, stream, state);
    stream._writableState.errorEmitted = true;
    stream.emit('error', er);
  } else {
    // the caller expect this to happen before if
    // it is async
    cb(er);
    stream._writableState.errorEmitted = true;
    stream.emit('error', er);
    // this can emit finish, but finish must
    // always follow error
    finishMaybe(stream, state);
  }
}

function onwriteStateUpdate(state) {
  state.writing = false;
  state.writecb = null;
  state.length -= state.writelen;
  state.writelen = 0;
}

function onwrite(stream, er) {
  var state = stream._writableState;
  var sync = state.sync;
  var cb = state.writecb;

  onwriteStateUpdate(state);

  if (er) onwriteError(stream, state, sync, er, cb);else {
    // Check if we're actually ready to finish, but don't emit yet
    var finished = needFinish(state);

    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
      clearBuffer(stream, state);
    }

    if (sync) {
      /*<replacement>*/
      asyncWrite(afterWrite, stream, state, finished, cb);
      /*</replacement>*/
    } else {
      afterWrite(stream, state, finished, cb);
    }
  }
}

function afterWrite(stream, state, finished, cb) {
  if (!finished) onwriteDrain(stream, state);
  state.pendingcb--;
  cb();
  finishMaybe(stream, state);
}

// Must force callback to be called on nextTick, so that we don't
// emit 'drain' before the write() consumer gets the 'false' return
// value, and has a chance to attach a 'drain' listener.
function onwriteDrain(stream, state) {
  if (state.length === 0 && state.needDrain) {
    state.needDrain = false;
    stream.emit('drain');
  }
}

// if there's something in the buffer waiting, then process it
function clearBuffer(stream, state) {
  state.bufferProcessing = true;
  var entry = state.bufferedRequest;

  if (stream._writev && entry && entry.next) {
    // Fast case, write everything using _writev()
    var l = state.bufferedRequestCount;
    var buffer = new Array(l);
    var holder = state.corkedRequestsFree;
    holder.entry = entry;

    var count = 0;
    var allBuffers = true;
    while (entry) {
      buffer[count] = entry;
      if (!entry.isBuf) allBuffers = false;
      entry = entry.next;
      count += 1;
    }
    buffer.allBuffers = allBuffers;

    doWrite(stream, state, true, state.length, buffer, '', holder.finish);

    // doWrite is almost always async, defer these to save a bit of time
    // as the hot path ends with doWrite
    state.pendingcb++;
    state.lastBufferedRequest = null;
    if (holder.next) {
      state.corkedRequestsFree = holder.next;
      holder.next = null;
    } else {
      state.corkedRequestsFree = new CorkedRequest(state);
    }
    state.bufferedRequestCount = 0;
  } else {
    // Slow case, write chunks one-by-one
    while (entry) {
      var chunk = entry.chunk;
      var encoding = entry.encoding;
      var cb = entry.callback;
      var len = state.objectMode ? 1 : chunk.length;

      doWrite(stream, state, false, len, chunk, encoding, cb);
      entry = entry.next;
      state.bufferedRequestCount--;
      // if we didn't call the onwrite immediately, then
      // it means that we need to wait until it does.
      // also, that means that the chunk and cb are currently
      // being processed, so move the buffer counter past them.
      if (state.writing) {
        break;
      }
    }

    if (entry === null) state.lastBufferedRequest = null;
  }

  state.bufferedRequest = entry;
  state.bufferProcessing = false;
}

Writable.prototype._write = function (chunk, encoding, cb) {
  cb(new Error('_write() is not implemented'));
};

Writable.prototype._writev = null;

Writable.prototype.end = function (chunk, encoding, cb) {
  var state = this._writableState;

  if (typeof chunk === 'function') {
    cb = chunk;
    chunk = null;
    encoding = null;
  } else if (typeof encoding === 'function') {
    cb = encoding;
    encoding = null;
  }

  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);

  // .end() fully uncorks
  if (state.corked) {
    state.corked = 1;
    this.uncork();
  }

  // ignore unnecessary end() calls.
  if (!state.ending && !state.finished) endWritable(this, state, cb);
};

function needFinish(state) {
  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
}
function callFinal(stream, state) {
  stream._final(function (err) {
    state.pendingcb--;
    if (err) {
      stream.emit('error', err);
    }
    state.prefinished = true;
    stream.emit('prefinish');
    finishMaybe(stream, state);
  });
}
function prefinish(stream, state) {
  if (!state.prefinished && !state.finalCalled) {
    if (typeof stream._final === 'function') {
      state.pendingcb++;
      state.finalCalled = true;
      pna.nextTick(callFinal, stream, state);
    } else {
      state.prefinished = true;
      stream.emit('prefinish');
    }
  }
}

function finishMaybe(stream, state) {
  var need = needFinish(state);
  if (need) {
    prefinish(stream, state);
    if (state.pendingcb === 0) {
      state.finished = true;
      stream.emit('finish');
    }
  }
  return need;
}

function endWritable(stream, state, cb) {
  state.ending = true;
  finishMaybe(stream, state);
  if (cb) {
    if (state.finished) pna.nextTick(cb);else stream.once('finish', cb);
  }
  state.ended = true;
  stream.writable = false;
}

function onCorkedFinish(corkReq, state, err) {
  var entry = corkReq.entry;
  corkReq.entry = null;
  while (entry) {
    var cb = entry.callback;
    state.pendingcb--;
    cb(err);
    entry = entry.next;
  }
  if (state.corkedRequestsFree) {
    state.corkedRequestsFree.next = corkReq;
  } else {
    state.corkedRequestsFree = corkReq;
  }
}

Object.defineProperty(Writable.prototype, 'destroyed', {
  get: function () {
    if (this._writableState === undefined) {
      return false;
    }
    return this._writableState.destroyed;
  },
  set: function (value) {
    // we ignore the value if the stream
    // has not been initialized yet
    if (!this._writableState) {
      return;
    }

    // backward compatibility, the user is explicitly
    // managing destroyed
    this._writableState.destroyed = value;
  }
});

Writable.prototype.destroy = destroyImpl.destroy;
Writable.prototype._undestroy = destroyImpl.undestroy;
Writable.prototype._destroy = function (err, cb) {
  this.end();
  cb(err);
};
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("timers").setImmediate)
},{"./_stream_duplex":324,"./internal/streams/destroy":330,"./internal/streams/stream":331,"_process":392,"core-util-is":293,"inherits":306,"process-nextick-args":317,"safe-buffer":337,"timers":341,"util-deprecate":342}],329:[function(require,module,exports){
'use strict';

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var Buffer = require('safe-buffer').Buffer;
var util = require('util');

function copyBuffer(src, target, offset) {
  src.copy(target, offset);
}

module.exports = function () {
  function BufferList() {
    _classCallCheck(this, BufferList);

    this.head = null;
    this.tail = null;
    this.length = 0;
  }

  BufferList.prototype.push = function push(v) {
    var entry = { data: v, next: null };
    if (this.length > 0) this.tail.next = entry;else this.head = entry;
    this.tail = entry;
    ++this.length;
  };

  BufferList.prototype.unshift = function unshift(v) {
    var entry = { data: v, next: this.head };
    if (this.length === 0) this.tail = entry;
    this.head = entry;
    ++this.length;
  };

  BufferList.prototype.shift = function shift() {
    if (this.length === 0) return;
    var ret = this.head.data;
    if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
    --this.length;
    return ret;
  };

  BufferList.prototype.clear = function clear() {
    this.head = this.tail = null;
    this.length = 0;
  };

  BufferList.prototype.join = function join(s) {
    if (this.length === 0) return '';
    var p = this.head;
    var ret = '' + p.data;
    while (p = p.next) {
      ret += s + p.data;
    }return ret;
  };

  BufferList.prototype.concat = function concat(n) {
    if (this.length === 0) return Buffer.alloc(0);
    if (this.length === 1) return this.head.data;
    var ret = Buffer.allocUnsafe(n >>> 0);
    var p = this.head;
    var i = 0;
    while (p) {
      copyBuffer(p.data, ret, i);
      i += p.data.length;
      p = p.next;
    }
    return ret;
  };

  return BufferList;
}();

if (util && util.inspect && util.inspect.custom) {
  module.exports.prototype[util.inspect.custom] = function () {
    var obj = util.inspect({ length: this.length });
    return this.constructor.name + ' ' + obj;
  };
}
},{"safe-buffer":337,"util":79}],330:[function(require,module,exports){
'use strict';

/*<replacement>*/

var pna = require('process-nextick-args');
/*</replacement>*/

// undocumented cb() API, needed for core, not for public API
function destroy(err, cb) {
  var _this = this;

  var readableDestroyed = this._readableState && this._readableState.destroyed;
  var writableDestroyed = this._writableState && this._writableState.destroyed;

  if (readableDestroyed || writableDestroyed) {
    if (cb) {
      cb(err);
    } else if (err && (!this._writableState || !this._writableState.errorEmitted)) {
      pna.nextTick(emitErrorNT, this, err);
    }
    return this;
  }

  // we set destroyed to true before firing error callbacks in order
  // to make it re-entrance safe in case destroy() is called within callbacks

  if (this._readableState) {
    this._readableState.destroyed = true;
  }

  // if this is a duplex stream mark the writable part as destroyed as well
  if (this._writableState) {
    this._writableState.destroyed = true;
  }

  this._destroy(err || null, function (err) {
    if (!cb && err) {
      pna.nextTick(emitErrorNT, _this, err);
      if (_this._writableState) {
        _this._writableState.errorEmitted = true;
      }
    } else if (cb) {
      cb(err);
    }
  });

  return this;
}

function undestroy() {
  if (this._readableState) {
    this._readableState.destroyed = false;
    this._readableState.reading = false;
    this._readableState.ended = false;
    this._readableState.endEmitted = false;
  }

  if (this._writableState) {
    this._writableState.destroyed = false;
    this._writableState.ended = false;
    this._writableState.ending = false;
    this._writableState.finished = false;
    this._writableState.errorEmitted = false;
  }
}

function emitErrorNT(self, err) {
  self.emit('error', err);
}

module.exports = {
  destroy: destroy,
  undestroy: undestroy
};
},{"process-nextick-args":317}],331:[function(require,module,exports){
arguments[4][97][0].apply(exports,arguments)
},{"dup":97,"events":296}],332:[function(require,module,exports){
module.exports = require('./readable').PassThrough

},{"./readable":333}],333:[function(require,module,exports){
exports = module.exports = require('./lib/_stream_readable.js');
exports.Stream = exports;
exports.Readable = exports;
exports.Writable = require('./lib/_stream_writable.js');
exports.Duplex = require('./lib/_stream_duplex.js');
exports.Transform = require('./lib/_stream_transform.js');
exports.PassThrough = require('./lib/_stream_passthrough.js');

},{"./lib/_stream_duplex.js":324,"./lib/_stream_passthrough.js":325,"./lib/_stream_readable.js":326,"./lib/_stream_transform.js":327,"./lib/_stream_writable.js":328}],334:[function(require,module,exports){
module.exports = require('./readable').Transform

},{"./readable":333}],335:[function(require,module,exports){
module.exports = require('./lib/_stream_writable.js');

},{"./lib/_stream_writable.js":328}],336:[function(require,module,exports){
/**
 * Copyright (c) 2014-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

!(function(global) {
  "use strict";

  var Op = Object.prototype;
  var hasOwn = Op.hasOwnProperty;
  var undefined; // More compressible than void 0.
  var $Symbol = typeof Symbol === "function" ? Symbol : {};
  var iteratorSymbol = $Symbol.iterator || "@@iterator";
  var asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator";
  var toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";

  var inModule = typeof module === "object";
  var runtime = global.regeneratorRuntime;
  if (runtime) {
    if (inModule) {
      // If regeneratorRuntime is defined globally and we're in a module,
      // make the exports object identical to regeneratorRuntime.
      module.exports = runtime;
    }
    // Don't bother evaluating the rest of this file if the runtime was
    // already defined globally.
    return;
  }

  // Define the runtime globally (as expected by generated code) as either
  // module.exports (if we're in a module) or a new, empty object.
  runtime = global.regeneratorRuntime = inModule ? module.exports : {};

  function wrap(innerFn, outerFn, self, tryLocsList) {
    // If outerFn provided and outerFn.prototype is a Generator, then outerFn.prototype instanceof Generator.
    var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;
    var generator = Object.create(protoGenerator.prototype);
    var context = new Context(tryLocsList || []);

    // The ._invoke method unifies the implementations of the .next,
    // .throw, and .return methods.
    generator._invoke = makeInvokeMethod(innerFn, self, context);

    return generator;
  }
  runtime.wrap = wrap;

  // Try/catch helper to minimize deoptimizations. Returns a completion
  // record like context.tryEntries[i].completion. This interface could
  // have been (and was previously) designed to take a closure to be
  // invoked without arguments, but in all the cases we care about we
  // already have an existing method we want to call, so there's no need
  // to create a new function object. We can even get away with assuming
  // the method takes exactly one argument, since that happens to be true
  // in every case, so we don't have to touch the arguments object. The
  // only additional allocation required is the completion record, which
  // has a stable shape and so hopefully should be cheap to allocate.
  function tryCatch(fn, obj, arg) {
    try {
      return { type: "normal", arg: fn.call(obj, arg) };
    } catch (err) {
      return { type: "throw", arg: err };
    }
  }

  var GenStateSuspendedStart = "suspendedStart";
  var GenStateSuspendedYield = "suspendedYield";
  var GenStateExecuting = "executing";
  var GenStateCompleted = "completed";

  // Returning this object from the innerFn has the same effect as
  // breaking out of the dispatch switch statement.
  var ContinueSentinel = {};

  // Dummy constructor functions that we use as the .constructor and
  // .constructor.prototype properties for functions that return Generator
  // objects. For full spec compliance, you may wish to configure your
  // minifier not to mangle the names of these two functions.
  function Generator() {}
  function GeneratorFunction() {}
  function GeneratorFunctionPrototype() {}

  // This is a polyfill for %IteratorPrototype% for environments that
  // don't natively support it.
  var IteratorPrototype = {};
  IteratorPrototype[iteratorSymbol] = function () {
    return this;
  };

  var getProto = Object.getPrototypeOf;
  var NativeIteratorPrototype = getProto && getProto(getProto(values([])));
  if (NativeIteratorPrototype &&
      NativeIteratorPrototype !== Op &&
      hasOwn.call(NativeIteratorPrototype, iteratorSymbol)) {
    // This environment has a native %IteratorPrototype%; use it instead
    // of the polyfill.
    IteratorPrototype = NativeIteratorPrototype;
  }

  var Gp = GeneratorFunctionPrototype.prototype =
    Generator.prototype = Object.create(IteratorPrototype);
  GeneratorFunction.prototype = Gp.constructor = GeneratorFunctionPrototype;
  GeneratorFunctionPrototype.constructor = GeneratorFunction;
  GeneratorFunctionPrototype[toStringTagSymbol] =
    GeneratorFunction.displayName = "GeneratorFunction";

  // Helper for defining the .next, .throw, and .return methods of the
  // Iterator interface in terms of a single ._invoke method.
  function defineIteratorMethods(prototype) {
    ["next", "throw", "return"].forEach(function(method) {
      prototype[method] = function(arg) {
        return this._invoke(method, arg);
      };
    });
  }

  runtime.isGeneratorFunction = function(genFun) {
    var ctor = typeof genFun === "function" && genFun.constructor;
    return ctor
      ? ctor === GeneratorFunction ||
        // For the native GeneratorFunction constructor, the best we can
        // do is to check its .name property.
        (ctor.displayName || ctor.name) === "GeneratorFunction"
      : false;
  };

  runtime.mark = function(genFun) {
    if (Object.setPrototypeOf) {
      Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
    } else {
      genFun.__proto__ = GeneratorFunctionPrototype;
      if (!(toStringTagSymbol in genFun)) {
        genFun[toStringTagSymbol] = "GeneratorFunction";
      }
    }
    genFun.prototype = Object.create(Gp);
    return genFun;
  };

  // Within the body of any async function, `await x` is transformed to
  // `yield regeneratorRuntime.awrap(x)`, so that the runtime can test
  // `hasOwn.call(value, "__await")` to determine if the yielded value is
  // meant to be awaited.
  runtime.awrap = function(arg) {
    return { __await: arg };
  };

  function AsyncIterator(generator) {
    function invoke(method, arg, resolve, reject) {
      var record = tryCatch(generator[method], generator, arg);
      if (record.type === "throw") {
        reject(record.arg);
      } else {
        var result = record.arg;
        var value = result.value;
        if (value &&
            typeof value === "object" &&
            hasOwn.call(value, "__await")) {
          return Promise.resolve(value.__await).then(function(value) {
            invoke("next", value, resolve, reject);
          }, function(err) {
            invoke("throw", err, resolve, reject);
          });
        }

        return Promise.resolve(value).then(function(unwrapped) {
          // When a yielded Promise is resolved, its final value becomes
          // the .value of the Promise<{value,done}> result for the
          // current iteration. If the Promise is rejected, however, the
          // result for this iteration will be rejected with the same
          // reason. Note that rejections of yielded Promises are not
          // thrown back into the generator function, as is the case
          // when an awaited Promise is rejected. This difference in
          // behavior between yield and await is important, because it
          // allows the consumer to decide what to do with the yielded
          // rejection (swallow it and continue, manually .throw it back
          // into the generator, abandon iteration, whatever). With
          // await, by contrast, there is no opportunity to examine the
          // rejection reason outside the generator function, so the
          // only option is to throw it from the await expression, and
          // let the generator function handle the exception.
          result.value = unwrapped;
          resolve(result);
        }, reject);
      }
    }

    var previousPromise;

    function enqueue(method, arg) {
      function callInvokeWithMethodAndArg() {
        return new Promise(function(resolve, reject) {
          invoke(method, arg, resolve, reject);
        });
      }

      return previousPromise =
        // If enqueue has been called before, then we want to wait until
        // all previous Promises have been resolved before calling invoke,
        // so that results are always delivered in the correct order. If
        // enqueue has not been called before, then it is important to
        // call invoke immediately, without waiting on a callback to fire,
        // so that the async generator function has the opportunity to do
        // any necessary setup in a predictable way. This predictability
        // is why the Promise constructor synchronously invokes its
        // executor callback, and why async functions synchronously
        // execute code before the first await. Since we implement simple
        // async functions in terms of async generators, it is especially
        // important to get this right, even though it requires care.
        previousPromise ? previousPromise.then(
          callInvokeWithMethodAndArg,
          // Avoid propagating failures to Promises returned by later
          // invocations of the iterator.
          callInvokeWithMethodAndArg
        ) : callInvokeWithMethodAndArg();
    }

    // Define the unified helper method that is used to implement .next,
    // .throw, and .return (see defineIteratorMethods).
    this._invoke = enqueue;
  }

  defineIteratorMethods(AsyncIterator.prototype);
  AsyncIterator.prototype[asyncIteratorSymbol] = function () {
    return this;
  };
  runtime.AsyncIterator = AsyncIterator;

  // Note that simple async functions are implemented on top of
  // AsyncIterator objects; they just return a Promise for the value of
  // the final result produced by the iterator.
  runtime.async = function(innerFn, outerFn, self, tryLocsList) {
    var iter = new AsyncIterator(
      wrap(innerFn, outerFn, self, tryLocsList)
    );

    return runtime.isGeneratorFunction(outerFn)
      ? iter // If outerFn is a generator, return the full iterator.
      : iter.next().then(function(result) {
          return result.done ? result.value : iter.next();
        });
  };

  function makeInvokeMethod(innerFn, self, context) {
    var state = GenStateSuspendedStart;

    return function invoke(method, arg) {
      if (state === GenStateExecuting) {
        throw new Error("Generator is already running");
      }

      if (state === GenStateCompleted) {
        if (method === "throw") {
          throw arg;
        }

        // Be forgiving, per 25.3.3.3.3 of the spec:
        // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-generatorresume
        return doneResult();
      }

      context.method = method;
      context.arg = arg;

      while (true) {
        var delegate = context.delegate;
        if (delegate) {
          var delegateResult = maybeInvokeDelegate(delegate, context);
          if (delegateResult) {
            if (delegateResult === ContinueSentinel) continue;
            return delegateResult;
          }
        }

        if (context.method === "next") {
          // Setting context._sent for legacy support of Babel's
          // function.sent implementation.
          context.sent = context._sent = context.arg;

        } else if (context.method === "throw") {
          if (state === GenStateSuspendedStart) {
            state = GenStateCompleted;
            throw context.arg;
          }

          context.dispatchException(context.arg);

        } else if (context.method === "return") {
          context.abrupt("return", context.arg);
        }

        state = GenStateExecuting;

        var record = tryCatch(innerFn, self, context);
        if (record.type === "normal") {
          // If an exception is thrown from innerFn, we leave state ===
          // GenStateExecuting and loop back for another invocation.
          state = context.done
            ? GenStateCompleted
            : GenStateSuspendedYield;

          if (record.arg === ContinueSentinel) {
            continue;
          }

          return {
            value: record.arg,
            done: context.done
          };

        } else if (record.type === "throw") {
          state = GenStateCompleted;
          // Dispatch the exception by looping back around to the
          // context.dispatchException(context.arg) call above.
          context.method = "throw";
          context.arg = record.arg;
        }
      }
    };
  }

  // Call delegate.iterator[context.method](context.arg) and handle the
  // result, either by returning a { value, done } result from the
  // delegate iterator, or by modifying context.method and context.arg,
  // setting context.delegate to null, and returning the ContinueSentinel.
  function maybeInvokeDelegate(delegate, context) {
    var method = delegate.iterator[context.method];
    if (method === undefined) {
      // A .throw or .return when the delegate iterator has no .throw
      // method always terminates the yield* loop.
      context.delegate = null;

      if (context.method === "throw") {
        if (delegate.iterator.return) {
          // If the delegate iterator has a return method, give it a
          // chance to clean up.
          context.method = "return";
          context.arg = undefined;
          maybeInvokeDelegate(delegate, context);

          if (context.method === "throw") {
            // If maybeInvokeDelegate(context) changed context.method from
            // "return" to "throw", let that override the TypeError below.
            return ContinueSentinel;
          }
        }

        context.method = "throw";
        context.arg = new TypeError(
          "The iterator does not provide a 'throw' method");
      }

      return ContinueSentinel;
    }

    var record = tryCatch(method, delegate.iterator, context.arg);

    if (record.type === "throw") {
      context.method = "throw";
      context.arg = record.arg;
      context.delegate = null;
      return ContinueSentinel;
    }

    var info = record.arg;

    if (! info) {
      context.method = "throw";
      context.arg = new TypeError("iterator result is not an object");
      context.delegate = null;
      return ContinueSentinel;
    }

    if (info.done) {
      // Assign the result of the finished delegate to the temporary
      // variable specified by delegate.resultName (see delegateYield).
      context[delegate.resultName] = info.value;

      // Resume execution at the desired location (see delegateYield).
      context.next = delegate.nextLoc;

      // If context.method was "throw" but the delegate handled the
      // exception, let the outer generator proceed normally. If
      // context.method was "next", forget context.arg since it has been
      // "consumed" by the delegate iterator. If context.method was
      // "return", allow the original .return call to continue in the
      // outer generator.
      if (context.method !== "return") {
        context.method = "next";
        context.arg = undefined;
      }

    } else {
      // Re-yield the result returned by the delegate method.
      return info;
    }

    // The delegate iterator is finished, so forget it and continue with
    // the outer generator.
    context.delegate = null;
    return ContinueSentinel;
  }

  // Define Generator.prototype.{next,throw,return} in terms of the
  // unified ._invoke helper method.
  defineIteratorMethods(Gp);

  Gp[toStringTagSymbol] = "Generator";

  // A Generator should always return itself as the iterator object when the
  // @@iterator function is called on it. Some browsers' implementations of the
  // iterator prototype chain incorrectly implement this, causing the Generator
  // object to not be returned from this call. This ensures that doesn't happen.
  // See https://github.com/facebook/regenerator/issues/274 for more details.
  Gp[iteratorSymbol] = function() {
    return this;
  };

  Gp.toString = function() {
    return "[object Generator]";
  };

  function pushTryEntry(locs) {
    var entry = { tryLoc: locs[0] };

    if (1 in locs) {
      entry.catchLoc = locs[1];
    }

    if (2 in locs) {
      entry.finallyLoc = locs[2];
      entry.afterLoc = locs[3];
    }

    this.tryEntries.push(entry);
  }

  function resetTryEntry(entry) {
    var record = entry.completion || {};
    record.type = "normal";
    delete record.arg;
    entry.completion = record;
  }

  function Context(tryLocsList) {
    // The root entry object (effectively a try statement without a catch
    // or a finally block) gives us a place to store values thrown from
    // locations where there is no enclosing try statement.
    this.tryEntries = [{ tryLoc: "root" }];
    tryLocsList.forEach(pushTryEntry, this);
    this.reset(true);
  }

  runtime.keys = function(object) {
    var keys = [];
    for (var key in object) {
      keys.push(key);
    }
    keys.reverse();

    // Rather than returning an object with a next method, we keep
    // things simple and return the next function itself.
    return function next() {
      while (keys.length) {
        var key = keys.pop();
        if (key in object) {
          next.value = key;
          next.done = false;
          return next;
        }
      }

      // To avoid creating an additional object, we just hang the .value
      // and .done properties off the next function object itself. This
      // also ensures that the minifier will not anonymize the function.
      next.done = true;
      return next;
    };
  };

  function values(iterable) {
    if (iterable) {
      var iteratorMethod = iterable[iteratorSymbol];
      if (iteratorMethod) {
        return iteratorMethod.call(iterable);
      }

      if (typeof iterable.next === "function") {
        return iterable;
      }

      if (!isNaN(iterable.length)) {
        var i = -1, next = function next() {
          while (++i < iterable.length) {
            if (hasOwn.call(iterable, i)) {
              next.value = iterable[i];
              next.done = false;
              return next;
            }
          }

          next.value = undefined;
          next.done = true;

          return next;
        };

        return next.next = next;
      }
    }

    // Return an iterator with no values.
    return { next: doneResult };
  }
  runtime.values = values;

  function doneResult() {
    return { value: undefined, done: true };
  }

  Context.prototype = {
    constructor: Context,

    reset: function(skipTempReset) {
      this.prev = 0;
      this.next = 0;
      // Resetting context._sent for legacy support of Babel's
      // function.sent implementation.
      this.sent = this._sent = undefined;
      this.done = false;
      this.delegate = null;

      this.method = "next";
      this.arg = undefined;

      this.tryEntries.forEach(resetTryEntry);

      if (!skipTempReset) {
        for (var name in this) {
          // Not sure about the optimal order of these conditions:
          if (name.charAt(0) === "t" &&
              hasOwn.call(this, name) &&
              !isNaN(+name.slice(1))) {
            this[name] = undefined;
          }
        }
      }
    },

    stop: function() {
      this.done = true;

      var rootEntry = this.tryEntries[0];
      var rootRecord = rootEntry.completion;
      if (rootRecord.type === "throw") {
        throw rootRecord.arg;
      }

      return this.rval;
    },

    dispatchException: function(exception) {
      if (this.done) {
        throw exception;
      }

      var context = this;
      function handle(loc, caught) {
        record.type = "throw";
        record.arg = exception;
        context.next = loc;

        if (caught) {
          // If the dispatched exception was caught by a catch block,
          // then let that catch block handle the exception normally.
          context.method = "next";
          context.arg = undefined;
        }

        return !! caught;
      }

      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];
        var record = entry.completion;

        if (entry.tryLoc === "root") {
          // Exception thrown outside of any try block that could handle
          // it, so set the completion value of the entire function to
          // throw the exception.
          return handle("end");
        }

        if (entry.tryLoc <= this.prev) {
          var hasCatch = hasOwn.call(entry, "catchLoc");
          var hasFinally = hasOwn.call(entry, "finallyLoc");

          if (hasCatch && hasFinally) {
            if (this.prev < entry.catchLoc) {
              return handle(entry.catchLoc, true);
            } else if (this.prev < entry.finallyLoc) {
              return handle(entry.finallyLoc);
            }

          } else if (hasCatch) {
            if (this.prev < entry.catchLoc) {
              return handle(entry.catchLoc, true);
            }

          } else if (hasFinally) {
            if (this.prev < entry.finallyLoc) {
              return handle(entry.finallyLoc);
            }

          } else {
            throw new Error("try statement without catch or finally");
          }
        }
      }
    },

    abrupt: function(type, arg) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];
        if (entry.tryLoc <= this.prev &&
            hasOwn.call(entry, "finallyLoc") &&
            this.prev < entry.finallyLoc) {
          var finallyEntry = entry;
          break;
        }
      }

      if (finallyEntry &&
          (type === "break" ||
           type === "continue") &&
          finallyEntry.tryLoc <= arg &&
          arg <= finallyEntry.finallyLoc) {
        // Ignore the finally entry if control is not jumping to a
        // location outside the try/catch block.
        finallyEntry = null;
      }

      var record = finallyEntry ? finallyEntry.completion : {};
      record.type = type;
      record.arg = arg;

      if (finallyEntry) {
        this.method = "next";
        this.next = finallyEntry.finallyLoc;
        return ContinueSentinel;
      }

      return this.complete(record);
    },

    complete: function(record, afterLoc) {
      if (record.type === "throw") {
        throw record.arg;
      }

      if (record.type === "break" ||
          record.type === "continue") {
        this.next = record.arg;
      } else if (record.type === "return") {
        this.rval = this.arg = record.arg;
        this.method = "return";
        this.next = "end";
      } else if (record.type === "normal" && afterLoc) {
        this.next = afterLoc;
      }

      return ContinueSentinel;
    },

    finish: function(finallyLoc) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];
        if (entry.finallyLoc === finallyLoc) {
          this.complete(entry.completion, entry.afterLoc);
          resetTryEntry(entry);
          return ContinueSentinel;
        }
      }
    },

    "catch": function(tryLoc) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];
        if (entry.tryLoc === tryLoc) {
          var record = entry.completion;
          if (record.type === "throw") {
            var thrown = record.arg;
            resetTryEntry(entry);
          }
          return thrown;
        }
      }

      // The context.catch method must only be called with a location
      // argument that corresponds to a known catch block.
      throw new Error("illegal catch attempt");
    },

    delegateYield: function(iterable, resultName, nextLoc) {
      this.delegate = {
        iterator: values(iterable),
        resultName: resultName,
        nextLoc: nextLoc
      };

      if (this.method === "next") {
        // Deliberately forget the last sent value so that we don't
        // accidentally pass it on to the delegate.
        this.arg = undefined;
      }

      return ContinueSentinel;
    }
  };
})(
  // In sloppy mode, unbound `this` refers to the global object, fallback to
  // Function constructor if we're in global strict mode. That is sadly a form
  // of indirect eval which violates Content Security Policy.
  (function() { return this })() || Function("return this")()
);

},{}],337:[function(require,module,exports){
/* eslint-disable node/no-deprecated-api */
var buffer = require('buffer')
var Buffer = buffer.Buffer

// alternative to using Object.keys for old browsers
function copyProps (src, dst) {
  for (var key in src) {
    dst[key] = src[key]
  }
}
if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
  module.exports = buffer
} else {
  // Copy properties from require('buffer')
  copyProps(buffer, exports)
  exports.Buffer = SafeBuffer
}

function SafeBuffer (arg, encodingOrOffset, length) {
  return Buffer(arg, encodingOrOffset, length)
}

// Copy static methods from Buffer
copyProps(Buffer, SafeBuffer)

SafeBuffer.from = function (arg, encodingOrOffset, length) {
  if (typeof arg === 'number') {
    throw new TypeError('Argument must not be a number')
  }
  return Buffer(arg, encodingOrOffset, length)
}

SafeBuffer.alloc = function (size, fill, encoding) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number')
  }
  var buf = Buffer(size)
  if (fill !== undefined) {
    if (typeof encoding === 'string') {
      buf.fill(fill, encoding)
    } else {
      buf.fill(fill)
    }
  } else {
    buf.fill(0)
  }
  return buf
}

SafeBuffer.allocUnsafe = function (size) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number')
  }
  return Buffer(size)
}

SafeBuffer.allocUnsafeSlow = function (size) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number')
  }
  return buffer.SlowBuffer(size)
}

},{"buffer":99}],338:[function(require,module,exports){
(function (Buffer){
;(function (sax) { // wrapper for non-node envs
  sax.parser = function (strict, opt) { return new SAXParser(strict, opt) }
  sax.SAXParser = SAXParser
  sax.SAXStream = SAXStream
  sax.createStream = createStream

  // When we pass the MAX_BUFFER_LENGTH position, start checking for buffer overruns.
  // When we check, schedule the next check for MAX_BUFFER_LENGTH - (max(buffer lengths)),
  // since that's the earliest that a buffer overrun could occur.  This way, checks are
  // as rare as required, but as often as necessary to ensure never crossing this bound.
  // Furthermore, buffers are only tested at most once per write(), so passing a very
  // large string into write() might have undesirable effects, but this is manageable by
  // the caller, so it is assumed to be safe.  Thus, a call to write() may, in the extreme
  // edge case, result in creating at most one complete copy of the string passed in.
  // Set to Infinity to have unlimited buffers.
  sax.MAX_BUFFER_LENGTH = 64 * 1024

  var buffers = [
    'comment', 'sgmlDecl', 'textNode', 'tagName', 'doctype',
    'procInstName', 'procInstBody', 'entity', 'attribName',
    'attribValue', 'cdata', 'script'
  ]

  sax.EVENTS = [
    'text',
    'processinginstruction',
    'sgmldeclaration',
    'doctype',
    'comment',
    'opentagstart',
    'attribute',
    'opentag',
    'closetag',
    'opencdata',
    'cdata',
    'closecdata',
    'error',
    'end',
    'ready',
    'script',
    'opennamespace',
    'closenamespace'
  ]

  function SAXParser (strict, opt) {
    if (!(this instanceof SAXParser)) {
      return new SAXParser(strict, opt)
    }

    var parser = this
    clearBuffers(parser)
    parser.q = parser.c = ''
    parser.bufferCheckPosition = sax.MAX_BUFFER_LENGTH
    parser.opt = opt || {}
    parser.opt.lowercase = parser.opt.lowercase || parser.opt.lowercasetags
    parser.looseCase = parser.opt.lowercase ? 'toLowerCase' : 'toUpperCase'
    parser.tags = []
    parser.closed = parser.closedRoot = parser.sawRoot = false
    parser.tag = parser.error = null
    parser.strict = !!strict
    parser.noscript = !!(strict || parser.opt.noscript)
    parser.state = S.BEGIN
    parser.strictEntities = parser.opt.strictEntities
    parser.ENTITIES = parser.strictEntities ? Object.create(sax.XML_ENTITIES) : Object.create(sax.ENTITIES)
    parser.attribList = []

    // namespaces form a prototype chain.
    // it always points at the current tag,
    // which protos to its parent tag.
    if (parser.opt.xmlns) {
      parser.ns = Object.create(rootNS)
    }

    // mostly just for error reporting
    parser.trackPosition = parser.opt.position !== false
    if (parser.trackPosition) {
      parser.position = parser.line = parser.column = 0
    }
    emit(parser, 'onready')
  }

  if (!Object.create) {
    Object.create = function (o) {
      function F () {}
      F.prototype = o
      var newf = new F()
      return newf
    }
  }

  if (!Object.keys) {
    Object.keys = function (o) {
      var a = []
      for (var i in o) if (o.hasOwnProperty(i)) a.push(i)
      return a
    }
  }

  function checkBufferLength (parser) {
    var maxAllowed = Math.max(sax.MAX_BUFFER_LENGTH, 10)
    var maxActual = 0
    for (var i = 0, l = buffers.length; i < l; i++) {
      var len = parser[buffers[i]].length
      if (len > maxAllowed) {
        // Text/cdata nodes can get big, and since they're buffered,
        // we can get here under normal conditions.
        // Avoid issues by emitting the text node now,
        // so at least it won't get any bigger.
        switch (buffers[i]) {
          case 'textNode':
            closeText(parser)
            break

          case 'cdata':
            emitNode(parser, 'oncdata', parser.cdata)
            parser.cdata = ''
            break

          case 'script':
            emitNode(parser, 'onscript', parser.script)
            parser.script = ''
            break

          default:
            error(parser, 'Max buffer length exceeded: ' + buffers[i])
        }
      }
      maxActual = Math.max(maxActual, len)
    }
    // schedule the next check for the earliest possible buffer overrun.
    var m = sax.MAX_BUFFER_LENGTH - maxActual
    parser.bufferCheckPosition = m + parser.position
  }

  function clearBuffers (parser) {
    for (var i = 0, l = buffers.length; i < l; i++) {
      parser[buffers[i]] = ''
    }
  }

  function flushBuffers (parser) {
    closeText(parser)
    if (parser.cdata !== '') {
      emitNode(parser, 'oncdata', parser.cdata)
      parser.cdata = ''
    }
    if (parser.script !== '') {
      emitNode(parser, 'onscript', parser.script)
      parser.script = ''
    }
  }

  SAXParser.prototype = {
    end: function () { end(this) },
    write: write,
    resume: function () { this.error = null; return this },
    close: function () { return this.write(null) },
    flush: function () { flushBuffers(this) }
  }

  var Stream
  try {
    Stream = require('stream').Stream
  } catch (ex) {
    Stream = function () {}
  }

  var streamWraps = sax.EVENTS.filter(function (ev) {
    return ev !== 'error' && ev !== 'end'
  })

  function createStream (strict, opt) {
    return new SAXStream(strict, opt)
  }

  function SAXStream (strict, opt) {
    if (!(this instanceof SAXStream)) {
      return new SAXStream(strict, opt)
    }

    Stream.apply(this)

    this._parser = new SAXParser(strict, opt)
    this.writable = true
    this.readable = true

    var me = this

    this._parser.onend = function () {
      me.emit('end')
    }

    this._parser.onerror = function (er) {
      me.emit('error', er)

      // if didn't throw, then means error was handled.
      // go ahead and clear error, so we can write again.
      me._parser.error = null
    }

    this._decoder = null

    streamWraps.forEach(function (ev) {
      Object.defineProperty(me, 'on' + ev, {
        get: function () {
          return me._parser['on' + ev]
        },
        set: function (h) {
          if (!h) {
            me.removeAllListeners(ev)
            me._parser['on' + ev] = h
            return h
          }
          me.on(ev, h)
        },
        enumerable: true,
        configurable: false
      })
    })
  }

  SAXStream.prototype = Object.create(Stream.prototype, {
    constructor: {
      value: SAXStream
    }
  })

  SAXStream.prototype.write = function (data) {
    if (typeof Buffer === 'function' &&
      typeof Buffer.isBuffer === 'function' &&
      Buffer.isBuffer(data)) {
      if (!this._decoder) {
        var SD = require('string_decoder').StringDecoder
        this._decoder = new SD('utf8')
      }
      data = this._decoder.write(data)
    }

    this._parser.write(data.toString())
    this.emit('data', data)
    return true
  }

  SAXStream.prototype.end = function (chunk) {
    if (chunk && chunk.length) {
      this.write(chunk)
    }
    this._parser.end()
    return true
  }

  SAXStream.prototype.on = function (ev, handler) {
    var me = this
    if (!me._parser['on' + ev] && streamWraps.indexOf(ev) !== -1) {
      me._parser['on' + ev] = function () {
        var args = arguments.length === 1 ? [arguments[0]] : Array.apply(null, arguments)
        args.splice(0, 0, ev)
        me.emit.apply(me, args)
      }
    }

    return Stream.prototype.on.call(me, ev, handler)
  }

  // this really needs to be replaced with character classes.
  // XML allows all manner of ridiculous numbers and digits.
  var CDATA = '[CDATA['
  var DOCTYPE = 'DOCTYPE'
  var XML_NAMESPACE = 'http://www.w3.org/XML/1998/namespace'
  var XMLNS_NAMESPACE = 'http://www.w3.org/2000/xmlns/'
  var rootNS = { xml: XML_NAMESPACE, xmlns: XMLNS_NAMESPACE }

  // http://www.w3.org/TR/REC-xml/#NT-NameStartChar
  // This implementation works on strings, a single character at a time
  // as such, it cannot ever support astral-plane characters (10000-EFFFF)
  // without a significant breaking change to either this  parser, or the
  // JavaScript language.  Implementation of an emoji-capable xml parser
  // is left as an exercise for the reader.
  var nameStart = /[:_A-Za-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]/

  var nameBody = /[:_A-Za-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD\u00B7\u0300-\u036F\u203F-\u2040.\d-]/

  var entityStart = /[#:_A-Za-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]/
  var entityBody = /[#:_A-Za-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD\u00B7\u0300-\u036F\u203F-\u2040.\d-]/

  function isWhitespace (c) {
    return c === ' ' || c === '\n' || c === '\r' || c === '\t'
  }

  function isQuote (c) {
    return c === '"' || c === '\''
  }

  function isAttribEnd (c) {
    return c === '>' || isWhitespace(c)
  }

  function isMatch (regex, c) {
    return regex.test(c)
  }

  function notMatch (regex, c) {
    return !isMatch(regex, c)
  }

  var S = 0
  sax.STATE = {
    BEGIN: S++, // leading byte order mark or whitespace
    BEGIN_WHITESPACE: S++, // leading whitespace
    TEXT: S++, // general stuff
    TEXT_ENTITY: S++, // &amp and such.
    OPEN_WAKA: S++, // <
    SGML_DECL: S++, // <!BLARG
    SGML_DECL_QUOTED: S++, // <!BLARG foo "bar
    DOCTYPE: S++, // <!DOCTYPE
    DOCTYPE_QUOTED: S++, // <!DOCTYPE "//blah
    DOCTYPE_DTD: S++, // <!DOCTYPE "//blah" [ ...
    DOCTYPE_DTD_QUOTED: S++, // <!DOCTYPE "//blah" [ "foo
    COMMENT_STARTING: S++, // <!-
    COMMENT: S++, // <!--
    COMMENT_ENDING: S++, // <!-- blah -
    COMMENT_ENDED: S++, // <!-- blah --
    CDATA: S++, // <![CDATA[ something
    CDATA_ENDING: S++, // ]
    CDATA_ENDING_2: S++, // ]]
    PROC_INST: S++, // <?hi
    PROC_INST_BODY: S++, // <?hi there
    PROC_INST_ENDING: S++, // <?hi "there" ?
    OPEN_TAG: S++, // <strong
    OPEN_TAG_SLASH: S++, // <strong /
    ATTRIB: S++, // <a
    ATTRIB_NAME: S++, // <a foo
    ATTRIB_NAME_SAW_WHITE: S++, // <a foo _
    ATTRIB_VALUE: S++, // <a foo=
    ATTRIB_VALUE_QUOTED: S++, // <a foo="bar
    ATTRIB_VALUE_CLOSED: S++, // <a foo="bar"
    ATTRIB_VALUE_UNQUOTED: S++, // <a foo=bar
    ATTRIB_VALUE_ENTITY_Q: S++, // <foo bar="&quot;"
    ATTRIB_VALUE_ENTITY_U: S++, // <foo bar=&quot
    CLOSE_TAG: S++, // </a
    CLOSE_TAG_SAW_WHITE: S++, // </a   >
    SCRIPT: S++, // <script> ...
    SCRIPT_ENDING: S++ // <script> ... <
  }

  sax.XML_ENTITIES = {
    'amp': '&',
    'gt': '>',
    'lt': '<',
    'quot': '"',
    'apos': "'"
  }

  sax.ENTITIES = {
    'amp': '&',
    'gt': '>',
    'lt': '<',
    'quot': '"',
    'apos': "'",
    'AElig': 198,
    'Aacute': 193,
    'Acirc': 194,
    'Agrave': 192,
    'Aring': 197,
    'Atilde': 195,
    'Auml': 196,
    'Ccedil': 199,
    'ETH': 208,
    'Eacute': 201,
    'Ecirc': 202,
    'Egrave': 200,
    'Euml': 203,
    'Iacute': 205,
    'Icirc': 206,
    'Igrave': 204,
    'Iuml': 207,
    'Ntilde': 209,
    'Oacute': 211,
    'Ocirc': 212,
    'Ograve': 210,
    'Oslash': 216,
    'Otilde': 213,
    'Ouml': 214,
    'THORN': 222,
    'Uacute': 218,
    'Ucirc': 219,
    'Ugrave': 217,
    'Uuml': 220,
    'Yacute': 221,
    'aacute': 225,
    'acirc': 226,
    'aelig': 230,
    'agrave': 224,
    'aring': 229,
    'atilde': 227,
    'auml': 228,
    'ccedil': 231,
    'eacute': 233,
    'ecirc': 234,
    'egrave': 232,
    'eth': 240,
    'euml': 235,
    'iacute': 237,
    'icirc': 238,
    'igrave': 236,
    'iuml': 239,
    'ntilde': 241,
    'oacute': 243,
    'ocirc': 244,
    'ograve': 242,
    'oslash': 248,
    'otilde': 245,
    'ouml': 246,
    'szlig': 223,
    'thorn': 254,
    'uacute': 250,
    'ucirc': 251,
    'ugrave': 249,
    'uuml': 252,
    'yacute': 253,
    'yuml': 255,
    'copy': 169,
    'reg': 174,
    'nbsp': 160,
    'iexcl': 161,
    'cent': 162,
    'pound': 163,
    'curren': 164,
    'yen': 165,
    'brvbar': 166,
    'sect': 167,
    'uml': 168,
    'ordf': 170,
    'laquo': 171,
    'not': 172,
    'shy': 173,
    'macr': 175,
    'deg': 176,
    'plusmn': 177,
    'sup1': 185,
    'sup2': 178,
    'sup3': 179,
    'acute': 180,
    'micro': 181,
    'para': 182,
    'middot': 183,
    'cedil': 184,
    'ordm': 186,
    'raquo': 187,
    'frac14': 188,
    'frac12': 189,
    'frac34': 190,
    'iquest': 191,
    'times': 215,
    'divide': 247,
    'OElig': 338,
    'oelig': 339,
    'Scaron': 352,
    'scaron': 353,
    'Yuml': 376,
    'fnof': 402,
    'circ': 710,
    'tilde': 732,
    'Alpha': 913,
    'Beta': 914,
    'Gamma': 915,
    'Delta': 916,
    'Epsilon': 917,
    'Zeta': 918,
    'Eta': 919,
    'Theta': 920,
    'Iota': 921,
    'Kappa': 922,
    'Lambda': 923,
    'Mu': 924,
    'Nu': 925,
    'Xi': 926,
    'Omicron': 927,
    'Pi': 928,
    'Rho': 929,
    'Sigma': 931,
    'Tau': 932,
    'Upsilon': 933,
    'Phi': 934,
    'Chi': 935,
    'Psi': 936,
    'Omega': 937,
    'alpha': 945,
    'beta': 946,
    'gamma': 947,
    'delta': 948,
    'epsilon': 949,
    'zeta': 950,
    'eta': 951,
    'theta': 952,
    'iota': 953,
    'kappa': 954,
    'lambda': 955,
    'mu': 956,
    'nu': 957,
    'xi': 958,
    'omicron': 959,
    'pi': 960,
    'rho': 961,
    'sigmaf': 962,
    'sigma': 963,
    'tau': 964,
    'upsilon': 965,
    'phi': 966,
    'chi': 967,
    'psi': 968,
    'omega': 969,
    'thetasym': 977,
    'upsih': 978,
    'piv': 982,
    'ensp': 8194,
    'emsp': 8195,
    'thinsp': 8201,
    'zwnj': 8204,
    'zwj': 8205,
    'lrm': 8206,
    'rlm': 8207,
    'ndash': 8211,
    'mdash': 8212,
    'lsquo': 8216,
    'rsquo': 8217,
    'sbquo': 8218,
    'ldquo': 8220,
    'rdquo': 8221,
    'bdquo': 8222,
    'dagger': 8224,
    'Dagger': 8225,
    'bull': 8226,
    'hellip': 8230,
    'permil': 8240,
    'prime': 8242,
    'Prime': 8243,
    'lsaquo': 8249,
    'rsaquo': 8250,
    'oline': 8254,
    'frasl': 8260,
    'euro': 8364,
    'image': 8465,
    'weierp': 8472,
    'real': 8476,
    'trade': 8482,
    'alefsym': 8501,
    'larr': 8592,
    'uarr': 8593,
    'rarr': 8594,
    'darr': 8595,
    'harr': 8596,
    'crarr': 8629,
    'lArr': 8656,
    'uArr': 8657,
    'rArr': 8658,
    'dArr': 8659,
    'hArr': 8660,
    'forall': 8704,
    'part': 8706,
    'exist': 8707,
    'empty': 8709,
    'nabla': 8711,
    'isin': 8712,
    'notin': 8713,
    'ni': 8715,
    'prod': 8719,
    'sum': 8721,
    'minus': 8722,
    'lowast': 8727,
    'radic': 8730,
    'prop': 8733,
    'infin': 8734,
    'ang': 8736,
    'and': 8743,
    'or': 8744,
    'cap': 8745,
    'cup': 8746,
    'int': 8747,
    'there4': 8756,
    'sim': 8764,
    'cong': 8773,
    'asymp': 8776,
    'ne': 8800,
    'equiv': 8801,
    'le': 8804,
    'ge': 8805,
    'sub': 8834,
    'sup': 8835,
    'nsub': 8836,
    'sube': 8838,
    'supe': 8839,
    'oplus': 8853,
    'otimes': 8855,
    'perp': 8869,
    'sdot': 8901,
    'lceil': 8968,
    'rceil': 8969,
    'lfloor': 8970,
    'rfloor': 8971,
    'lang': 9001,
    'rang': 9002,
    'loz': 9674,
    'spades': 9824,
    'clubs': 9827,
    'hearts': 9829,
    'diams': 9830
  }

  Object.keys(sax.ENTITIES).forEach(function (key) {
    var e = sax.ENTITIES[key]
    var s = typeof e === 'number' ? String.fromCharCode(e) : e
    sax.ENTITIES[key] = s
  })

  for (var s in sax.STATE) {
    sax.STATE[sax.STATE[s]] = s
  }

  // shorthand
  S = sax.STATE

  function emit (parser, event, data) {
    parser[event] && parser[event](data)
  }

  function emitNode (parser, nodeType, data) {
    if (parser.textNode) closeText(parser)
    emit(parser, nodeType, data)
  }

  function closeText (parser) {
    parser.textNode = textopts(parser.opt, parser.textNode)
    if (parser.textNode) emit(parser, 'ontext', parser.textNode)
    parser.textNode = ''
  }

  function textopts (opt, text) {
    if (opt.trim) text = text.trim()
    if (opt.normalize) text = text.replace(/\s+/g, ' ')
    return text
  }

  function error (parser, er) {
    closeText(parser)
    if (parser.trackPosition) {
      er += '\nLine: ' + parser.line +
        '\nColumn: ' + parser.column +
        '\nChar: ' + parser.c
    }
    er = new Error(er)
    parser.error = er
    emit(parser, 'onerror', er)
    return parser
  }

  function end (parser) {
    if (parser.sawRoot && !parser.closedRoot) strictFail(parser, 'Unclosed root tag')
    if ((parser.state !== S.BEGIN) &&
      (parser.state !== S.BEGIN_WHITESPACE) &&
      (parser.state !== S.TEXT)) {
      error(parser, 'Unexpected end')
    }
    closeText(parser)
    parser.c = ''
    parser.closed = true
    emit(parser, 'onend')
    SAXParser.call(parser, parser.strict, parser.opt)
    return parser
  }

  function strictFail (parser, message) {
    if (typeof parser !== 'object' || !(parser instanceof SAXParser)) {
      throw new Error('bad call to strictFail')
    }
    if (parser.strict) {
      error(parser, message)
    }
  }

  function newTag (parser) {
    if (!parser.strict) parser.tagName = parser.tagName[parser.looseCase]()
    var parent = parser.tags[parser.tags.length - 1] || parser
    var tag = parser.tag = { name: parser.tagName, attributes: {} }

    // will be overridden if tag contails an xmlns="foo" or xmlns:foo="bar"
    if (parser.opt.xmlns) {
      tag.ns = parent.ns
    }
    parser.attribList.length = 0
    emitNode(parser, 'onopentagstart', tag)
  }

  function qname (name, attribute) {
    var i = name.indexOf(':')
    var qualName = i < 0 ? [ '', name ] : name.split(':')
    var prefix = qualName[0]
    var local = qualName[1]

    // <x "xmlns"="http://foo">
    if (attribute && name === 'xmlns') {
      prefix = 'xmlns'
      local = ''
    }

    return { prefix: prefix, local: local }
  }

  function attrib (parser) {
    if (!parser.strict) {
      parser.attribName = parser.attribName[parser.looseCase]()
    }

    if (parser.attribList.indexOf(parser.attribName) !== -1 ||
      parser.tag.attributes.hasOwnProperty(parser.attribName)) {
      parser.attribName = parser.attribValue = ''
      return
    }

    if (parser.opt.xmlns) {
      var qn = qname(parser.attribName, true)
      var prefix = qn.prefix
      var local = qn.local

      if (prefix === 'xmlns') {
        // namespace binding attribute. push the binding into scope
        if (local === 'xml' && parser.attribValue !== XML_NAMESPACE) {
          strictFail(parser,
            'xml: prefix must be bound to ' + XML_NAMESPACE + '\n' +
            'Actual: ' + parser.attribValue)
        } else if (local === 'xmlns' && parser.attribValue !== XMLNS_NAMESPACE) {
          strictFail(parser,
            'xmlns: prefix must be bound to ' + XMLNS_NAMESPACE + '\n' +
            'Actual: ' + parser.attribValue)
        } else {
          var tag = parser.tag
          var parent = parser.tags[parser.tags.length - 1] || parser
          if (tag.ns === parent.ns) {
            tag.ns = Object.create(parent.ns)
          }
          tag.ns[local] = parser.attribValue
        }
      }

      // defer onattribute events until all attributes have been seen
      // so any new bindings can take effect. preserve attribute order
      // so deferred events can be emitted in document order
      parser.attribList.push([parser.attribName, parser.attribValue])
    } else {
      // in non-xmlns mode, we can emit the event right away
      parser.tag.attributes[parser.attribName] = parser.attribValue
      emitNode(parser, 'onattribute', {
        name: parser.attribName,
        value: parser.attribValue
      })
    }

    parser.attribName = parser.attribValue = ''
  }

  function openTag (parser, selfClosing) {
    if (parser.opt.xmlns) {
      // emit namespace binding events
      var tag = parser.tag

      // add namespace info to tag
      var qn = qname(parser.tagName)
      tag.prefix = qn.prefix
      tag.local = qn.local
      tag.uri = tag.ns[qn.prefix] || ''

      if (tag.prefix && !tag.uri) {
        strictFail(parser, 'Unbound namespace prefix: ' +
          JSON.stringify(parser.tagName))
        tag.uri = qn.prefix
      }

      var parent = parser.tags[parser.tags.length - 1] || parser
      if (tag.ns && parent.ns !== tag.ns) {
        Object.keys(tag.ns).forEach(function (p) {
          emitNode(parser, 'onopennamespace', {
            prefix: p,
            uri: tag.ns[p]
          })
        })
      }

      // handle deferred onattribute events
      // Note: do not apply default ns to attributes:
      //   http://www.w3.org/TR/REC-xml-names/#defaulting
      for (var i = 0, l = parser.attribList.length; i < l; i++) {
        var nv = parser.attribList[i]
        var name = nv[0]
        var value = nv[1]
        var qualName = qname(name, true)
        var prefix = qualName.prefix
        var local = qualName.local
        var uri = prefix === '' ? '' : (tag.ns[prefix] || '')
        var a = {
          name: name,
          value: value,
          prefix: prefix,
          local: local,
          uri: uri
        }

        // if there's any attributes with an undefined namespace,
        // then fail on them now.
        if (prefix && prefix !== 'xmlns' && !uri) {
          strictFail(parser, 'Unbound namespace prefix: ' +
            JSON.stringify(prefix))
          a.uri = prefix
        }
        parser.tag.attributes[name] = a
        emitNode(parser, 'onattribute', a)
      }
      parser.attribList.length = 0
    }

    parser.tag.isSelfClosing = !!selfClosing

    // process the tag
    parser.sawRoot = true
    parser.tags.push(parser.tag)
    emitNode(parser, 'onopentag', parser.tag)
    if (!selfClosing) {
      // special case for <script> in non-strict mode.
      if (!parser.noscript && parser.tagName.toLowerCase() === 'script') {
        parser.state = S.SCRIPT
      } else {
        parser.state = S.TEXT
      }
      parser.tag = null
      parser.tagName = ''
    }
    parser.attribName = parser.attribValue = ''
    parser.attribList.length = 0
  }

  function closeTag (parser) {
    if (!parser.tagName) {
      strictFail(parser, 'Weird empty close tag.')
      parser.textNode += '</>'
      parser.state = S.TEXT
      return
    }

    if (parser.script) {
      if (parser.tagName !== 'script') {
        parser.script += '</' + parser.tagName + '>'
        parser.tagName = ''
        parser.state = S.SCRIPT
        return
      }
      emitNode(parser, 'onscript', parser.script)
      parser.script = ''
    }

    // first make sure that the closing tag actually exists.
    // <a><b></c></b></a> will close everything, otherwise.
    var t = parser.tags.length
    var tagName = parser.tagName
    if (!parser.strict) {
      tagName = tagName[parser.looseCase]()
    }
    var closeTo = tagName
    while (t--) {
      var close = parser.tags[t]
      if (close.name !== closeTo) {
        // fail the first time in strict mode
        strictFail(parser, 'Unexpected close tag')
      } else {
        break
      }
    }

    // didn't find it.  we already failed for strict, so just abort.
    if (t < 0) {
      strictFail(parser, 'Unmatched closing tag: ' + parser.tagName)
      parser.textNode += '</' + parser.tagName + '>'
      parser.state = S.TEXT
      return
    }
    parser.tagName = tagName
    var s = parser.tags.length
    while (s-- > t) {
      var tag = parser.tag = parser.tags.pop()
      parser.tagName = parser.tag.name
      emitNode(parser, 'onclosetag', parser.tagName)

      var x = {}
      for (var i in tag.ns) {
        x[i] = tag.ns[i]
      }

      var parent = parser.tags[parser.tags.length - 1] || parser
      if (parser.opt.xmlns && tag.ns !== parent.ns) {
        // remove namespace bindings introduced by tag
        Object.keys(tag.ns).forEach(function (p) {
          var n = tag.ns[p]
          emitNode(parser, 'onclosenamespace', { prefix: p, uri: n })
        })
      }
    }
    if (t === 0) parser.closedRoot = true
    parser.tagName = parser.attribValue = parser.attribName = ''
    parser.attribList.length = 0
    parser.state = S.TEXT
  }

  function parseEntity (parser) {
    var entity = parser.entity
    var entityLC = entity.toLowerCase()
    var num
    var numStr = ''

    if (parser.ENTITIES[entity]) {
      return parser.ENTITIES[entity]
    }
    if (parser.ENTITIES[entityLC]) {
      return parser.ENTITIES[entityLC]
    }
    entity = entityLC
    if (entity.charAt(0) === '#') {
      if (entity.charAt(1) === 'x') {
        entity = entity.slice(2)
        num = parseInt(entity, 16)
        numStr = num.toString(16)
      } else {
        entity = entity.slice(1)
        num = parseInt(entity, 10)
        numStr = num.toString(10)
      }
    }
    entity = entity.replace(/^0+/, '')
    if (isNaN(num) || numStr.toLowerCase() !== entity) {
      strictFail(parser, 'Invalid character entity')
      return '&' + parser.entity + ';'
    }

    return String.fromCodePoint(num)
  }

  function beginWhiteSpace (parser, c) {
    if (c === '<') {
      parser.state = S.OPEN_WAKA
      parser.startTagPosition = parser.position
    } else if (!isWhitespace(c)) {
      // have to process this as a text node.
      // weird, but happens.
      strictFail(parser, 'Non-whitespace before first tag.')
      parser.textNode = c
      parser.state = S.TEXT
    }
  }

  function charAt (chunk, i) {
    var result = ''
    if (i < chunk.length) {
      result = chunk.charAt(i)
    }
    return result
  }

  function write (chunk) {
    var parser = this
    if (this.error) {
      throw this.error
    }
    if (parser.closed) {
      return error(parser,
        'Cannot write after close. Assign an onready handler.')
    }
    if (chunk === null) {
      return end(parser)
    }
    if (typeof chunk === 'object') {
      chunk = chunk.toString()
    }
    var i = 0
    var c = ''
    while (true) {
      c = charAt(chunk, i++)
      parser.c = c

      if (!c) {
        break
      }

      if (parser.trackPosition) {
        parser.position++
        if (c === '\n') {
          parser.line++
          parser.column = 0
        } else {
          parser.column++
        }
      }

      switch (parser.state) {
        case S.BEGIN:
          parser.state = S.BEGIN_WHITESPACE
          if (c === '\uFEFF') {
            continue
          }
          beginWhiteSpace(parser, c)
          continue

        case S.BEGIN_WHITESPACE:
          beginWhiteSpace(parser, c)
          continue

        case S.TEXT:
          if (parser.sawRoot && !parser.closedRoot) {
            var starti = i - 1
            while (c && c !== '<' && c !== '&') {
              c = charAt(chunk, i++)
              if (c && parser.trackPosition) {
                parser.position++
                if (c === '\n') {
                  parser.line++
                  parser.column = 0
                } else {
                  parser.column++
                }
              }
            }
            parser.textNode += chunk.substring(starti, i - 1)
          }
          if (c === '<' && !(parser.sawRoot && parser.closedRoot && !parser.strict)) {
            parser.state = S.OPEN_WAKA
            parser.startTagPosition = parser.position
          } else {
            if (!isWhitespace(c) && (!parser.sawRoot || parser.closedRoot)) {
              strictFail(parser, 'Text data outside of root node.')
            }
            if (c === '&') {
              parser.state = S.TEXT_ENTITY
            } else {
              parser.textNode += c
            }
          }
          continue

        case S.SCRIPT:
          // only non-strict
          if (c === '<') {
            parser.state = S.SCRIPT_ENDING
          } else {
            parser.script += c
          }
          continue

        case S.SCRIPT_ENDING:
          if (c === '/') {
            parser.state = S.CLOSE_TAG
          } else {
            parser.script += '<' + c
            parser.state = S.SCRIPT
          }
          continue

        case S.OPEN_WAKA:
          // either a /, ?, !, or text is coming next.
          if (c === '!') {
            parser.state = S.SGML_DECL
            parser.sgmlDecl = ''
          } else if (isWhitespace(c)) {
            // wait for it...
          } else if (isMatch(nameStart, c)) {
            parser.state = S.OPEN_TAG
            parser.tagName = c
          } else if (c === '/') {
            parser.state = S.CLOSE_TAG
            parser.tagName = ''
          } else if (c === '?') {
            parser.state = S.PROC_INST
            parser.procInstName = parser.procInstBody = ''
          } else {
            strictFail(parser, 'Unencoded <')
            // if there was some whitespace, then add that in.
            if (parser.startTagPosition + 1 < parser.position) {
              var pad = parser.position - parser.startTagPosition
              c = new Array(pad).join(' ') + c
            }
            parser.textNode += '<' + c
            parser.state = S.TEXT
          }
          continue

        case S.SGML_DECL:
          if ((parser.sgmlDecl + c).toUpperCase() === CDATA) {
            emitNode(parser, 'onopencdata')
            parser.state = S.CDATA
            parser.sgmlDecl = ''
            parser.cdata = ''
          } else if (parser.sgmlDecl + c === '--') {
            parser.state = S.COMMENT
            parser.comment = ''
            parser.sgmlDecl = ''
          } else if ((parser.sgmlDecl + c).toUpperCase() === DOCTYPE) {
            parser.state = S.DOCTYPE
            if (parser.doctype || parser.sawRoot) {
              strictFail(parser,
                'Inappropriately located doctype declaration')
            }
            parser.doctype = ''
            parser.sgmlDecl = ''
          } else if (c === '>') {
            emitNode(parser, 'onsgmldeclaration', parser.sgmlDecl)
            parser.sgmlDecl = ''
            parser.state = S.TEXT
          } else if (isQuote(c)) {
            parser.state = S.SGML_DECL_QUOTED
            parser.sgmlDecl += c
          } else {
            parser.sgmlDecl += c
          }
          continue

        case S.SGML_DECL_QUOTED:
          if (c === parser.q) {
            parser.state = S.SGML_DECL
            parser.q = ''
          }
          parser.sgmlDecl += c
          continue

        case S.DOCTYPE:
          if (c === '>') {
            parser.state = S.TEXT
            emitNode(parser, 'ondoctype', parser.doctype)
            parser.doctype = true // just remember that we saw it.
          } else {
            parser.doctype += c
            if (c === '[') {
              parser.state = S.DOCTYPE_DTD
            } else if (isQuote(c)) {
              parser.state = S.DOCTYPE_QUOTED
              parser.q = c
            }
          }
          continue

        case S.DOCTYPE_QUOTED:
          parser.doctype += c
          if (c === parser.q) {
            parser.q = ''
            parser.state = S.DOCTYPE
          }
          continue

        case S.DOCTYPE_DTD:
          parser.doctype += c
          if (c === ']') {
            parser.state = S.DOCTYPE
          } else if (isQuote(c)) {
            parser.state = S.DOCTYPE_DTD_QUOTED
            parser.q = c
          }
          continue

        case S.DOCTYPE_DTD_QUOTED:
          parser.doctype += c
          if (c === parser.q) {
            parser.state = S.DOCTYPE_DTD
            parser.q = ''
          }
          continue

        case S.COMMENT:
          if (c === '-') {
            parser.state = S.COMMENT_ENDING
          } else {
            parser.comment += c
          }
          continue

        case S.COMMENT_ENDING:
          if (c === '-') {
            parser.state = S.COMMENT_ENDED
            parser.comment = textopts(parser.opt, parser.comment)
            if (parser.comment) {
              emitNode(parser, 'oncomment', parser.comment)
            }
            parser.comment = ''
          } else {
            parser.comment += '-' + c
            parser.state = S.COMMENT
          }
          continue

        case S.COMMENT_ENDED:
          if (c !== '>') {
            strictFail(parser, 'Malformed comment')
            // allow <!-- blah -- bloo --> in non-strict mode,
            // which is a comment of " blah -- bloo "
            parser.comment += '--' + c
            parser.state = S.COMMENT
          } else {
            parser.state = S.TEXT
          }
          continue

        case S.CDATA:
          if (c === ']') {
            parser.state = S.CDATA_ENDING
          } else {
            parser.cdata += c
          }
          continue

        case S.CDATA_ENDING:
          if (c === ']') {
            parser.state = S.CDATA_ENDING_2
          } else {
            parser.cdata += ']' + c
            parser.state = S.CDATA
          }
          continue

        case S.CDATA_ENDING_2:
          if (c === '>') {
            if (parser.cdata) {
              emitNode(parser, 'oncdata', parser.cdata)
            }
            emitNode(parser, 'onclosecdata')
            parser.cdata = ''
            parser.state = S.TEXT
          } else if (c === ']') {
            parser.cdata += ']'
          } else {
            parser.cdata += ']]' + c
            parser.state = S.CDATA
          }
          continue

        case S.PROC_INST:
          if (c === '?') {
            parser.state = S.PROC_INST_ENDING
          } else if (isWhitespace(c)) {
            parser.state = S.PROC_INST_BODY
          } else {
            parser.procInstName += c
          }
          continue

        case S.PROC_INST_BODY:
          if (!parser.procInstBody && isWhitespace(c)) {
            continue
          } else if (c === '?') {
            parser.state = S.PROC_INST_ENDING
          } else {
            parser.procInstBody += c
          }
          continue

        case S.PROC_INST_ENDING:
          if (c === '>') {
            emitNode(parser, 'onprocessinginstruction', {
              name: parser.procInstName,
              body: parser.procInstBody
            })
            parser.procInstName = parser.procInstBody = ''
            parser.state = S.TEXT
          } else {
            parser.procInstBody += '?' + c
            parser.state = S.PROC_INST_BODY
          }
          continue

        case S.OPEN_TAG:
          if (isMatch(nameBody, c)) {
            parser.tagName += c
          } else {
            newTag(parser)
            if (c === '>') {
              openTag(parser)
            } else if (c === '/') {
              parser.state = S.OPEN_TAG_SLASH
            } else {
              if (!isWhitespace(c)) {
                strictFail(parser, 'Invalid character in tag name')
              }
              parser.state = S.ATTRIB
            }
          }
          continue

        case S.OPEN_TAG_SLASH:
          if (c === '>') {
            openTag(parser, true)
            closeTag(parser)
          } else {
            strictFail(parser, 'Forward-slash in opening tag not followed by >')
            parser.state = S.ATTRIB
          }
          continue

        case S.ATTRIB:
          // haven't read the attribute name yet.
          if (isWhitespace(c)) {
            continue
          } else if (c === '>') {
            openTag(parser)
          } else if (c === '/') {
            parser.state = S.OPEN_TAG_SLASH
          } else if (isMatch(nameStart, c)) {
            parser.attribName = c
            parser.attribValue = ''
            parser.state = S.ATTRIB_NAME
          } else {
            strictFail(parser, 'Invalid attribute name')
          }
          continue

        case S.ATTRIB_NAME:
          if (c === '=') {
            parser.state = S.ATTRIB_VALUE
          } else if (c === '>') {
            strictFail(parser, 'Attribute without value')
            parser.attribValue = parser.attribName
            attrib(parser)
            openTag(parser)
          } else if (isWhitespace(c)) {
            parser.state = S.ATTRIB_NAME_SAW_WHITE
          } else if (isMatch(nameBody, c)) {
            parser.attribName += c
          } else {
            strictFail(parser, 'Invalid attribute name')
          }
          continue

        case S.ATTRIB_NAME_SAW_WHITE:
          if (c === '=') {
            parser.state = S.ATTRIB_VALUE
          } else if (isWhitespace(c)) {
            continue
          } else {
            strictFail(parser, 'Attribute without value')
            parser.tag.attributes[parser.attribName] = ''
            parser.attribValue = ''
            emitNode(parser, 'onattribute', {
              name: parser.attribName,
              value: ''
            })
            parser.attribName = ''
            if (c === '>') {
              openTag(parser)
            } else if (isMatch(nameStart, c)) {
              parser.attribName = c
              parser.state = S.ATTRIB_NAME
            } else {
              strictFail(parser, 'Invalid attribute name')
              parser.state = S.ATTRIB
            }
          }
          continue

        case S.ATTRIB_VALUE:
          if (isWhitespace(c)) {
            continue
          } else if (isQuote(c)) {
            parser.q = c
            parser.state = S.ATTRIB_VALUE_QUOTED
          } else {
            strictFail(parser, 'Unquoted attribute value')
            parser.state = S.ATTRIB_VALUE_UNQUOTED
            parser.attribValue = c
          }
          continue

        case S.ATTRIB_VALUE_QUOTED:
          if (c !== parser.q) {
            if (c === '&') {
              parser.state = S.ATTRIB_VALUE_ENTITY_Q
            } else {
              parser.attribValue += c
            }
            continue
          }
          attrib(parser)
          parser.q = ''
          parser.state = S.ATTRIB_VALUE_CLOSED
          continue

        case S.ATTRIB_VALUE_CLOSED:
          if (isWhitespace(c)) {
            parser.state = S.ATTRIB
          } else if (c === '>') {
            openTag(parser)
          } else if (c === '/') {
            parser.state = S.OPEN_TAG_SLASH
          } else if (isMatch(nameStart, c)) {
            strictFail(parser, 'No whitespace between attributes')
            parser.attribName = c
            parser.attribValue = ''
            parser.state = S.ATTRIB_NAME
          } else {
            strictFail(parser, 'Invalid attribute name')
          }
          continue

        case S.ATTRIB_VALUE_UNQUOTED:
          if (!isAttribEnd(c)) {
            if (c === '&') {
              parser.state = S.ATTRIB_VALUE_ENTITY_U
            } else {
              parser.attribValue += c
            }
            continue
          }
          attrib(parser)
          if (c === '>') {
            openTag(parser)
          } else {
            parser.state = S.ATTRIB
          }
          continue

        case S.CLOSE_TAG:
          if (!parser.tagName) {
            if (isWhitespace(c)) {
              continue
            } else if (notMatch(nameStart, c)) {
              if (parser.script) {
                parser.script += '</' + c
                parser.state = S.SCRIPT
              } else {
                strictFail(parser, 'Invalid tagname in closing tag.')
              }
            } else {
              parser.tagName = c
            }
          } else if (c === '>') {
            closeTag(parser)
          } else if (isMatch(nameBody, c)) {
            parser.tagName += c
          } else if (parser.script) {
            parser.script += '</' + parser.tagName
            parser.tagName = ''
            parser.state = S.SCRIPT
          } else {
            if (!isWhitespace(c)) {
              strictFail(parser, 'Invalid tagname in closing tag')
            }
            parser.state = S.CLOSE_TAG_SAW_WHITE
          }
          continue

        case S.CLOSE_TAG_SAW_WHITE:
          if (isWhitespace(c)) {
            continue
          }
          if (c === '>') {
            closeTag(parser)
          } else {
            strictFail(parser, 'Invalid characters in closing tag')
          }
          continue

        case S.TEXT_ENTITY:
        case S.ATTRIB_VALUE_ENTITY_Q:
        case S.ATTRIB_VALUE_ENTITY_U:
          var returnState
          var buffer
          switch (parser.state) {
            case S.TEXT_ENTITY:
              returnState = S.TEXT
              buffer = 'textNode'
              break

            case S.ATTRIB_VALUE_ENTITY_Q:
              returnState = S.ATTRIB_VALUE_QUOTED
              buffer = 'attribValue'
              break

            case S.ATTRIB_VALUE_ENTITY_U:
              returnState = S.ATTRIB_VALUE_UNQUOTED
              buffer = 'attribValue'
              break
          }

          if (c === ';') {
            parser[buffer] += parseEntity(parser)
            parser.entity = ''
            parser.state = returnState
          } else if (isMatch(parser.entity.length ? entityBody : entityStart, c)) {
            parser.entity += c
          } else {
            strictFail(parser, 'Invalid character in entity name')
            parser[buffer] += '&' + parser.entity + c
            parser.entity = ''
            parser.state = returnState
          }

          continue

        default:
          throw new Error(parser, 'Unknown state: ' + parser.state)
      }
    } // while

    if (parser.position >= parser.bufferCheckPosition) {
      checkBufferLength(parser)
    }
    return parser
  }

  /*! http://mths.be/fromcodepoint v0.1.0 by @mathias */
  /* istanbul ignore next */
  if (!String.fromCodePoint) {
    (function () {
      var stringFromCharCode = String.fromCharCode
      var floor = Math.floor
      var fromCodePoint = function () {
        var MAX_SIZE = 0x4000
        var codeUnits = []
        var highSurrogate
        var lowSurrogate
        var index = -1
        var length = arguments.length
        if (!length) {
          return ''
        }
        var result = ''
        while (++index < length) {
          var codePoint = Number(arguments[index])
          if (
            !isFinite(codePoint) || // `NaN`, `+Infinity`, or `-Infinity`
            codePoint < 0 || // not a valid Unicode code point
            codePoint > 0x10FFFF || // not a valid Unicode code point
            floor(codePoint) !== codePoint // not an integer
          ) {
            throw RangeError('Invalid code point: ' + codePoint)
          }
          if (codePoint <= 0xFFFF) { // BMP code point
            codeUnits.push(codePoint)
          } else { // Astral code point; split in surrogate halves
            // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
            codePoint -= 0x10000
            highSurrogate = (codePoint >> 10) + 0xD800
            lowSurrogate = (codePoint % 0x400) + 0xDC00
            codeUnits.push(highSurrogate, lowSurrogate)
          }
          if (index + 1 === length || codeUnits.length > MAX_SIZE) {
            result += stringFromCharCode.apply(null, codeUnits)
            codeUnits.length = 0
          }
        }
        return result
      }
      /* istanbul ignore next */
      if (Object.defineProperty) {
        Object.defineProperty(String, 'fromCodePoint', {
          value: fromCodePoint,
          configurable: true,
          writable: true
        })
      } else {
        String.fromCodePoint = fromCodePoint
      }
    }())
  }
})(typeof exports === 'undefined' ? this.sax = {} : exports)

}).call(this,require("buffer").Buffer)
},{"buffer":99,"stream":339,"string_decoder":340}],339:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

module.exports = Stream;

var EE = require('events').EventEmitter;
var inherits = require('inherits');

inherits(Stream, EE);
Stream.Readable = require('readable-stream/readable.js');
Stream.Writable = require('readable-stream/writable.js');
Stream.Duplex = require('readable-stream/duplex.js');
Stream.Transform = require('readable-stream/transform.js');
Stream.PassThrough = require('readable-stream/passthrough.js');

// Backwards-compat with node 0.4.x
Stream.Stream = Stream;



// old-style streams.  Note that the pipe method (the only relevant
// part of this class) is overridden in the Readable class.

function Stream() {
  EE.call(this);
}

Stream.prototype.pipe = function(dest, options) {
  var source = this;

  function ondata(chunk) {
    if (dest.writable) {
      if (false === dest.write(chunk) && source.pause) {
        source.pause();
      }
    }
  }

  source.on('data', ondata);

  function ondrain() {
    if (source.readable && source.resume) {
      source.resume();
    }
  }

  dest.on('drain', ondrain);

  // If the 'end' option is not supplied, dest.end() will be called when
  // source gets the 'end' or 'close' events.  Only dest.end() once.
  if (!dest._isStdio && (!options || options.end !== false)) {
    source.on('end', onend);
    source.on('close', onclose);
  }

  var didOnEnd = false;
  function onend() {
    if (didOnEnd) return;
    didOnEnd = true;

    dest.end();
  }


  function onclose() {
    if (didOnEnd) return;
    didOnEnd = true;

    if (typeof dest.destroy === 'function') dest.destroy();
  }

  // don't leave dangling pipes when there are errors.
  function onerror(er) {
    cleanup();
    if (EE.listenerCount(this, 'error') === 0) {
      throw er; // Unhandled stream error in pipe.
    }
  }

  source.on('error', onerror);
  dest.on('error', onerror);

  // remove all the event listeners that were added.
  function cleanup() {
    source.removeListener('data', ondata);
    dest.removeListener('drain', ondrain);

    source.removeListener('end', onend);
    source.removeListener('close', onclose);

    source.removeListener('error', onerror);
    dest.removeListener('error', onerror);

    source.removeListener('end', cleanup);
    source.removeListener('close', cleanup);

    dest.removeListener('close', cleanup);
  }

  source.on('end', cleanup);
  source.on('close', cleanup);

  dest.on('close', cleanup);

  dest.emit('pipe', source);

  // Allow for unix-like usage: A.pipe(B).pipe(C)
  return dest;
};

},{"events":296,"inherits":306,"readable-stream/duplex.js":323,"readable-stream/passthrough.js":332,"readable-stream/readable.js":333,"readable-stream/transform.js":334,"readable-stream/writable.js":335}],340:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';

/*<replacement>*/

var Buffer = require('safe-buffer').Buffer;
/*</replacement>*/

var isEncoding = Buffer.isEncoding || function (encoding) {
  encoding = '' + encoding;
  switch (encoding && encoding.toLowerCase()) {
    case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
      return true;
    default:
      return false;
  }
};

function _normalizeEncoding(enc) {
  if (!enc) return 'utf8';
  var retried;
  while (true) {
    switch (enc) {
      case 'utf8':
      case 'utf-8':
        return 'utf8';
      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return 'utf16le';
      case 'latin1':
      case 'binary':
        return 'latin1';
      case 'base64':
      case 'ascii':
      case 'hex':
        return enc;
      default:
        if (retried) return; // undefined
        enc = ('' + enc).toLowerCase();
        retried = true;
    }
  }
};

// Do not cache `Buffer.isEncoding` when checking encoding names as some
// modules monkey-patch it to support additional encodings
function normalizeEncoding(enc) {
  var nenc = _normalizeEncoding(enc);
  if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
  return nenc || enc;
}

// StringDecoder provides an interface for efficiently splitting a series of
// buffers into a series of JS strings without breaking apart multi-byte
// characters.
exports.StringDecoder = StringDecoder;
function StringDecoder(encoding) {
  this.encoding = normalizeEncoding(encoding);
  var nb;
  switch (this.encoding) {
    case 'utf16le':
      this.text = utf16Text;
      this.end = utf16End;
      nb = 4;
      break;
    case 'utf8':
      this.fillLast = utf8FillLast;
      nb = 4;
      break;
    case 'base64':
      this.text = base64Text;
      this.end = base64End;
      nb = 3;
      break;
    default:
      this.write = simpleWrite;
      this.end = simpleEnd;
      return;
  }
  this.lastNeed = 0;
  this.lastTotal = 0;
  this.lastChar = Buffer.allocUnsafe(nb);
}

StringDecoder.prototype.write = function (buf) {
  if (buf.length === 0) return '';
  var r;
  var i;
  if (this.lastNeed) {
    r = this.fillLast(buf);
    if (r === undefined) return '';
    i = this.lastNeed;
    this.lastNeed = 0;
  } else {
    i = 0;
  }
  if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
  return r || '';
};

StringDecoder.prototype.end = utf8End;

// Returns only complete characters in a Buffer
StringDecoder.prototype.text = utf8Text;

// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
StringDecoder.prototype.fillLast = function (buf) {
  if (this.lastNeed <= buf.length) {
    buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
  }
  buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
  this.lastNeed -= buf.length;
};

// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
// continuation byte. If an invalid byte is detected, -2 is returned.
function utf8CheckByte(byte) {
  if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
  return byte >> 6 === 0x02 ? -1 : -2;
}

// Checks at most 3 bytes at the end of a Buffer in order to detect an
// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
// needed to complete the UTF-8 character (if applicable) are returned.
function utf8CheckIncomplete(self, buf, i) {
  var j = buf.length - 1;
  if (j < i) return 0;
  var nb = utf8CheckByte(buf[j]);
  if (nb >= 0) {
    if (nb > 0) self.lastNeed = nb - 1;
    return nb;
  }
  if (--j < i || nb === -2) return 0;
  nb = utf8CheckByte(buf[j]);
  if (nb >= 0) {
    if (nb > 0) self.lastNeed = nb - 2;
    return nb;
  }
  if (--j < i || nb === -2) return 0;
  nb = utf8CheckByte(buf[j]);
  if (nb >= 0) {
    if (nb > 0) {
      if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
    }
    return nb;
  }
  return 0;
}

// Validates as many continuation bytes for a multi-byte UTF-8 character as
// needed or are available. If we see a non-continuation byte where we expect
// one, we "replace" the validated continuation bytes we've seen so far with
// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding
// behavior. The continuation byte check is included three times in the case
// where all of the continuation bytes for a character exist in the same buffer.
// It is also done this way as a slight performance increase instead of using a
// loop.
function utf8CheckExtraBytes(self, buf, p) {
  if ((buf[0] & 0xC0) !== 0x80) {
    self.lastNeed = 0;
    return '\ufffd';
  }
  if (self.lastNeed > 1 && buf.length > 1) {
    if ((buf[1] & 0xC0) !== 0x80) {
      self.lastNeed = 1;
      return '\ufffd';
    }
    if (self.lastNeed > 2 && buf.length > 2) {
      if ((buf[2] & 0xC0) !== 0x80) {
        self.lastNeed = 2;
        return '\ufffd';
      }
    }
  }
}

// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
function utf8FillLast(buf) {
  var p = this.lastTotal - this.lastNeed;
  var r = utf8CheckExtraBytes(this, buf, p);
  if (r !== undefined) return r;
  if (this.lastNeed <= buf.length) {
    buf.copy(this.lastChar, p, 0, this.lastNeed);
    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
  }
  buf.copy(this.lastChar, p, 0, buf.length);
  this.lastNeed -= buf.length;
}

// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
// partial character, the character's bytes are buffered until the required
// number of bytes are available.
function utf8Text(buf, i) {
  var total = utf8CheckIncomplete(this, buf, i);
  if (!this.lastNeed) return buf.toString('utf8', i);
  this.lastTotal = total;
  var end = buf.length - (total - this.lastNeed);
  buf.copy(this.lastChar, 0, end);
  return buf.toString('utf8', i, end);
}

// For UTF-8, a replacement character is added when ending on a partial
// character.
function utf8End(buf) {
  var r = buf && buf.length ? this.write(buf) : '';
  if (this.lastNeed) return r + '\ufffd';
  return r;
}

// UTF-16LE typically needs two bytes per character, but even if we have an even
// number of bytes available, we need to check if we end on a leading/high
// surrogate. In that case, we need to wait for the next two bytes in order to
// decode the last character properly.
function utf16Text(buf, i) {
  if ((buf.length - i) % 2 === 0) {
    var r = buf.toString('utf16le', i);
    if (r) {
      var c = r.charCodeAt(r.length - 1);
      if (c >= 0xD800 && c <= 0xDBFF) {
        this.lastNeed = 2;
        this.lastTotal = 4;
        this.lastChar[0] = buf[buf.length - 2];
        this.lastChar[1] = buf[buf.length - 1];
        return r.slice(0, -1);
      }
    }
    return r;
  }
  this.lastNeed = 1;
  this.lastTotal = 2;
  this.lastChar[0] = buf[buf.length - 1];
  return buf.toString('utf16le', i, buf.length - 1);
}

// For UTF-16LE we do not explicitly append special replacement characters if we
// end on a partial character, we simply let v8 handle that.
function utf16End(buf) {
  var r = buf && buf.length ? this.write(buf) : '';
  if (this.lastNeed) {
    var end = this.lastTotal - this.lastNeed;
    return r + this.lastChar.toString('utf16le', 0, end);
  }
  return r;
}

function base64Text(buf, i) {
  var n = (buf.length - i) % 3;
  if (n === 0) return buf.toString('base64', i);
  this.lastNeed = 3 - n;
  this.lastTotal = 3;
  if (n === 1) {
    this.lastChar[0] = buf[buf.length - 1];
  } else {
    this.lastChar[0] = buf[buf.length - 2];
    this.lastChar[1] = buf[buf.length - 1];
  }
  return buf.toString('base64', i, buf.length - n);
}

function base64End(buf) {
  var r = buf && buf.length ? this.write(buf) : '';
  if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
  return r;
}

// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
function simpleWrite(buf) {
  return buf.toString(this.encoding);
}

function simpleEnd(buf) {
  return buf && buf.length ? this.write(buf) : '';
}
},{"safe-buffer":337}],341:[function(require,module,exports){
(function (setImmediate,clearImmediate){
var nextTick = require('process/browser.js').nextTick;
var apply = Function.prototype.apply;
var slice = Array.prototype.slice;
var immediateIds = {};
var nextImmediateId = 0;

// DOM APIs, for completeness

exports.setTimeout = function() {
  return new Timeout(apply.call(setTimeout, window, arguments), clearTimeout);
};
exports.setInterval = function() {
  return new Timeout(apply.call(setInterval, window, arguments), clearInterval);
};
exports.clearTimeout =
exports.clearInterval = function(timeout) { timeout.close(); };

function Timeout(id, clearFn) {
  this._id = id;
  this._clearFn = clearFn;
}
Timeout.prototype.unref = Timeout.prototype.ref = function() {};
Timeout.prototype.close = function() {
  this._clearFn.call(window, this._id);
};

// Does not start the time, just sets up the members needed.
exports.enroll = function(item, msecs) {
  clearTimeout(item._idleTimeoutId);
  item._idleTimeout = msecs;
};

exports.unenroll = function(item) {
  clearTimeout(item._idleTimeoutId);
  item._idleTimeout = -1;
};

exports._unrefActive = exports.active = function(item) {
  clearTimeout(item._idleTimeoutId);

  var msecs = item._idleTimeout;
  if (msecs >= 0) {
    item._idleTimeoutId = setTimeout(function onTimeout() {
      if (item._onTimeout)
        item._onTimeout();
    }, msecs);
  }
};

// That's not how node.js implements it but the exposed api is the same.
exports.setImmediate = typeof setImmediate === "function" ? setImmediate : function(fn) {
  var id = nextImmediateId++;
  var args = arguments.length < 2 ? false : slice.call(arguments, 1);

  immediateIds[id] = true;

  nextTick(function onNextTick() {
    if (immediateIds[id]) {
      // fn.call() is faster so we optimize for the common use-case
      // @see http://jsperf.com/call-apply-segu
      if (args) {
        fn.apply(null, args);
      } else {
        fn.call(null);
      }
      // Prevent ids from leaking
      exports.clearImmediate(id);
    }
  });

  return id;
};

exports.clearImmediate = typeof clearImmediate === "function" ? clearImmediate : function(id) {
  delete immediateIds[id];
};
}).call(this,require("timers").setImmediate,require("timers").clearImmediate)
},{"process/browser.js":318,"timers":341}],342:[function(require,module,exports){
(function (global){

/**
 * Module exports.
 */

module.exports = deprecate;

/**
 * Mark that a method should not be used.
 * Returns a modified function which warns once by default.
 *
 * If `localStorage.noDeprecation = true` is set, then it is a no-op.
 *
 * If `localStorage.throwDeprecation = true` is set, then deprecated functions
 * will throw an Error when invoked.
 *
 * If `localStorage.traceDeprecation = true` is set, then deprecated functions
 * will invoke `console.trace()` instead of `console.error()`.
 *
 * @param {Function} fn - the function to deprecate
 * @param {String} msg - the string to print to the console when `fn` is invoked
 * @returns {Function} a new "deprecated" version of `fn`
 * @api public
 */

function deprecate (fn, msg) {
  if (config('noDeprecation')) {
    return fn;
  }

  var warned = false;
  function deprecated() {
    if (!warned) {
      if (config('throwDeprecation')) {
        throw new Error(msg);
      } else if (config('traceDeprecation')) {
        console.trace(msg);
      } else {
        console.warn(msg);
      }
      warned = true;
    }
    return fn.apply(this, arguments);
  }

  return deprecated;
}

/**
 * Checks `localStorage` for boolean values for the given `name`.
 *
 * @param {String} name
 * @returns {Boolean}
 * @api private
 */

function config (name) {
  // accessing global.localStorage can trigger a DOMException in sandboxed iframes
  try {
    if (!global.localStorage) return false;
  } catch (_) {
    return false;
  }
  var val = global.localStorage[name];
  if (null == val) return false;
  return String(val).toLowerCase() === 'true';
}

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],343:[function(require,module,exports){
if (typeof Object.create === 'function') {
  // implementation from standard node.js 'util' module
  module.exports = function inherits(ctor, superCtor) {
    ctor.super_ = superCtor
    ctor.prototype = Object.create(superCtor.prototype, {
      constructor: {
        value: ctor,
        enumerable: false,
        writable: true,
        configurable: true
      }
    });
  };
} else {
  // old school shim for old browsers
  module.exports = function inherits(ctor, superCtor) {
    ctor.super_ = superCtor
    var TempCtor = function () {}
    TempCtor.prototype = superCtor.prototype
    ctor.prototype = new TempCtor()
    ctor.prototype.constructor = ctor
  }
}

},{}],344:[function(require,module,exports){
module.exports = function isBuffer(arg) {
  return arg && typeof arg === 'object'
    && typeof arg.copy === 'function'
    && typeof arg.fill === 'function'
    && typeof arg.readUInt8 === 'function';
}
},{}],345:[function(require,module,exports){
(function (process,global){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var formatRegExp = /%[sdj%]/g;
exports.format = function(f) {
  if (!isString(f)) {
    var objects = [];
    for (var i = 0; i < arguments.length; i++) {
      objects.push(inspect(arguments[i]));
    }
    return objects.join(' ');
  }

  var i = 1;
  var args = arguments;
  var len = args.length;
  var str = String(f).replace(formatRegExp, function(x) {
    if (x === '%%') return '%';
    if (i >= len) return x;
    switch (x) {
      case '%s': return String(args[i++]);
      case '%d': return Number(args[i++]);
      case '%j':
        try {
          return JSON.stringify(args[i++]);
        } catch (_) {
          return '[Circular]';
        }
      default:
        return x;
    }
  });
  for (var x = args[i]; i < len; x = args[++i]) {
    if (isNull(x) || !isObject(x)) {
      str += ' ' + x;
    } else {
      str += ' ' + inspect(x);
    }
  }
  return str;
};


// Mark that a method should not be used.
// Returns a modified function which warns once by default.
// If --no-deprecation is set, then it is a no-op.
exports.deprecate = function(fn, msg) {
  // Allow for deprecating things in the process of starting up.
  if (isUndefined(global.process)) {
    return function() {
      return exports.deprecate(fn, msg).apply(this, arguments);
    };
  }

  if (process.noDeprecation === true) {
    return fn;
  }

  var warned = false;
  function deprecated() {
    if (!warned) {
      if (process.throwDeprecation) {
        throw new Error(msg);
      } else if (process.traceDeprecation) {
        console.trace(msg);
      } else {
        console.error(msg);
      }
      warned = true;
    }
    return fn.apply(this, arguments);
  }

  return deprecated;
};


var debugs = {};
var debugEnviron;
exports.debuglog = function(set) {
  if (isUndefined(debugEnviron))
    debugEnviron = process.env.NODE_DEBUG || '';
  set = set.toUpperCase();
  if (!debugs[set]) {
    if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
      var pid = process.pid;
      debugs[set] = function() {
        var msg = exports.format.apply(exports, arguments);
        console.error('%s %d: %s', set, pid, msg);
      };
    } else {
      debugs[set] = function() {};
    }
  }
  return debugs[set];
};


/**
 * Echos the value of a value. Trys to print the value out
 * in the best way possible given the different types.
 *
 * @param {Object} obj The object to print out.
 * @param {Object} opts Optional options object that alters the output.
 */
/* legacy: obj, showHidden, depth, colors*/
function inspect(obj, opts) {
  // default options
  var ctx = {
    seen: [],
    stylize: stylizeNoColor
  };
  // legacy...
  if (arguments.length >= 3) ctx.depth = arguments[2];
  if (arguments.length >= 4) ctx.colors = arguments[3];
  if (isBoolean(opts)) {
    // legacy...
    ctx.showHidden = opts;
  } else if (opts) {
    // got an "options" object
    exports._extend(ctx, opts);
  }
  // set default options
  if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
  if (isUndefined(ctx.depth)) ctx.depth = 2;
  if (isUndefined(ctx.colors)) ctx.colors = false;
  if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
  if (ctx.colors) ctx.stylize = stylizeWithColor;
  return formatValue(ctx, obj, ctx.depth);
}
exports.inspect = inspect;


// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
inspect.colors = {
  'bold' : [1, 22],
  'italic' : [3, 23],
  'underline' : [4, 24],
  'inverse' : [7, 27],
  'white' : [37, 39],
  'grey' : [90, 39],
  'black' : [30, 39],
  'blue' : [34, 39],
  'cyan' : [36, 39],
  'green' : [32, 39],
  'magenta' : [35, 39],
  'red' : [31, 39],
  'yellow' : [33, 39]
};

// Don't use 'blue' not visible on cmd.exe
inspect.styles = {
  'special': 'cyan',
  'number': 'yellow',
  'boolean': 'yellow',
  'undefined': 'grey',
  'null': 'bold',
  'string': 'green',
  'date': 'magenta',
  // "name": intentionally not styling
  'regexp': 'red'
};


function stylizeWithColor(str, styleType) {
  var style = inspect.styles[styleType];

  if (style) {
    return '\u001b[' + inspect.colors[style][0] + 'm' + str +
           '\u001b[' + inspect.colors[style][1] + 'm';
  } else {
    return str;
  }
}


function stylizeNoColor(str, styleType) {
  return str;
}


function arrayToHash(array) {
  var hash = {};

  array.forEach(function(val, idx) {
    hash[val] = true;
  });

  return hash;
}


function formatValue(ctx, value, recurseTimes) {
  // Provide a hook for user-specified inspect functions.
  // Check that value is an object with an inspect function on it
  if (ctx.customInspect &&
      value &&
      isFunction(value.inspect) &&
      // Filter out the util module, it's inspect function is special
      value.inspect !== exports.inspect &&
      // Also filter out any prototype objects using the circular check.
      !(value.constructor && value.constructor.prototype === value)) {
    var ret = value.inspect(recurseTimes, ctx);
    if (!isString(ret)) {
      ret = formatValue(ctx, ret, recurseTimes);
    }
    return ret;
  }

  // Primitive types cannot have properties
  var primitive = formatPrimitive(ctx, value);
  if (primitive) {
    return primitive;
  }

  // Look up the keys of the object.
  var keys = Object.keys(value);
  var visibleKeys = arrayToHash(keys);

  if (ctx.showHidden) {
    keys = Object.getOwnPropertyNames(value);
  }

  // IE doesn't make error fields non-enumerable
  // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
  if (isError(value)
      && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
    return formatError(value);
  }

  // Some type of object without properties can be shortcutted.
  if (keys.length === 0) {
    if (isFunction(value)) {
      var name = value.name ? ': ' + value.name : '';
      return ctx.stylize('[Function' + name + ']', 'special');
    }
    if (isRegExp(value)) {
      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
    }
    if (isDate(value)) {
      return ctx.stylize(Date.prototype.toString.call(value), 'date');
    }
    if (isError(value)) {
      return formatError(value);
    }
  }

  var base = '', array = false, braces = ['{', '}'];

  // Make Array say that they are Array
  if (isArray(value)) {
    array = true;
    braces = ['[', ']'];
  }

  // Make functions say that they are functions
  if (isFunction(value)) {
    var n = value.name ? ': ' + value.name : '';
    base = ' [Function' + n + ']';
  }

  // Make RegExps say that they are RegExps
  if (isRegExp(value)) {
    base = ' ' + RegExp.prototype.toString.call(value);
  }

  // Make dates with properties first say the date
  if (isDate(value)) {
    base = ' ' + Date.prototype.toUTCString.call(value);
  }

  // Make error with message first say the error
  if (isError(value)) {
    base = ' ' + formatError(value);
  }

  if (keys.length === 0 && (!array || value.length == 0)) {
    return braces[0] + base + braces[1];
  }

  if (recurseTimes < 0) {
    if (isRegExp(value)) {
      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
    } else {
      return ctx.stylize('[Object]', 'special');
    }
  }

  ctx.seen.push(value);

  var output;
  if (array) {
    output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
  } else {
    output = keys.map(function(key) {
      return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
    });
  }

  ctx.seen.pop();

  return reduceToSingleString(output, base, braces);
}


function formatPrimitive(ctx, value) {
  if (isUndefined(value))
    return ctx.stylize('undefined', 'undefined');
  if (isString(value)) {
    var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
                                             .replace(/'/g, "\\'")
                                             .replace(/\\"/g, '"') + '\'';
    return ctx.stylize(simple, 'string');
  }
  if (isNumber(value))
    return ctx.stylize('' + value, 'number');
  if (isBoolean(value))
    return ctx.stylize('' + value, 'boolean');
  // For some reason typeof null is "object", so special case here.
  if (isNull(value))
    return ctx.stylize('null', 'null');
}


function formatError(value) {
  return '[' + Error.prototype.toString.call(value) + ']';
}


function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
  var output = [];
  for (var i = 0, l = value.length; i < l; ++i) {
    if (hasOwnProperty(value, String(i))) {
      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
          String(i), true));
    } else {
      output.push('');
    }
  }
  keys.forEach(function(key) {
    if (!key.match(/^\d+$/)) {
      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
          key, true));
    }
  });
  return output;
}


function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
  var name, str, desc;
  desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
  if (desc.get) {
    if (desc.set) {
      str = ctx.stylize('[Getter/Setter]', 'special');
    } else {
      str = ctx.stylize('[Getter]', 'special');
    }
  } else {
    if (desc.set) {
      str = ctx.stylize('[Setter]', 'special');
    }
  }
  if (!hasOwnProperty(visibleKeys, key)) {
    name = '[' + key + ']';
  }
  if (!str) {
    if (ctx.seen.indexOf(desc.value) < 0) {
      if (isNull(recurseTimes)) {
        str = formatValue(ctx, desc.value, null);
      } else {
        str = formatValue(ctx, desc.value, recurseTimes - 1);
      }
      if (str.indexOf('\n') > -1) {
        if (array) {
          str = str.split('\n').map(function(line) {
            return '  ' + line;
          }).join('\n').substr(2);
        } else {
          str = '\n' + str.split('\n').map(function(line) {
            return '   ' + line;
          }).join('\n');
        }
      }
    } else {
      str = ctx.stylize('[Circular]', 'special');
    }
  }
  if (isUndefined(name)) {
    if (array && key.match(/^\d+$/)) {
      return str;
    }
    name = JSON.stringify('' + key);
    if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
      name = name.substr(1, name.length - 2);
      name = ctx.stylize(name, 'name');
    } else {
      name = name.replace(/'/g, "\\'")
                 .replace(/\\"/g, '"')
                 .replace(/(^"|"$)/g, "'");
      name = ctx.stylize(name, 'string');
    }
  }

  return name + ': ' + str;
}


function reduceToSingleString(output, base, braces) {
  var numLinesEst = 0;
  var length = output.reduce(function(prev, cur) {
    numLinesEst++;
    if (cur.indexOf('\n') >= 0) numLinesEst++;
    return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
  }, 0);

  if (length > 60) {
    return braces[0] +
           (base === '' ? '' : base + '\n ') +
           ' ' +
           output.join(',\n  ') +
           ' ' +
           braces[1];
  }

  return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
}


// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.
function isArray(ar) {
  return Array.isArray(ar);
}
exports.isArray = isArray;

function isBoolean(arg) {
  return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;

function isNull(arg) {
  return arg === null;
}
exports.isNull = isNull;

function isNullOrUndefined(arg) {
  return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;

function isNumber(arg) {
  return typeof arg === 'number';
}
exports.isNumber = isNumber;

function isString(arg) {
  return typeof arg === 'string';
}
exports.isString = isString;

function isSymbol(arg) {
  return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;

function isUndefined(arg) {
  return arg === void 0;
}
exports.isUndefined = isUndefined;

function isRegExp(re) {
  return isObject(re) && objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;

function isDate(d) {
  return isObject(d) && objectToString(d) === '[object Date]';
}
exports.isDate = isDate;

function isError(e) {
  return isObject(e) &&
      (objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;

function isFunction(arg) {
  return typeof arg === 'function';
}
exports.isFunction = isFunction;

function isPrimitive(arg) {
  return arg === null ||
         typeof arg === 'boolean' ||
         typeof arg === 'number' ||
         typeof arg === 'string' ||
         typeof arg === 'symbol' ||  // ES6 symbol
         typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;

exports.isBuffer = require('./support/isBuffer');

function objectToString(o) {
  return Object.prototype.toString.call(o);
}


function pad(n) {
  return n < 10 ? '0' + n.toString(10) : n.toString(10);
}


var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
              'Oct', 'Nov', 'Dec'];

// 26 Feb 16:19:34
function timestamp() {
  var d = new Date();
  var time = [pad(d.getHours()),
              pad(d.getMinutes()),
              pad(d.getSeconds())].join(':');
  return [d.getDate(), months[d.getMonth()], time].join(' ');
}


// log is just a thin wrapper to console.log that prepends a timestamp
exports.log = function() {
  console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
};


/**
 * Inherit the prototype methods from one constructor into another.
 *
 * The Function.prototype.inherits from lang.js rewritten as a standalone
 * function (not on Function.prototype). NOTE: If this file is to be loaded
 * during bootstrapping this function needs to be rewritten using some native
 * functions as prototype setup using normal JavaScript does not work as
 * expected during bootstrapping (see mirror.js in r114903).
 *
 * @param {function} ctor Constructor function which needs to inherit the
 *     prototype.
 * @param {function} superCtor Constructor function to inherit prototype from.
 */
exports.inherits = require('inherits');

exports._extend = function(origin, add) {
  // Don't do anything if add isn't an object
  if (!add || !isObject(add)) return origin;

  var keys = Object.keys(add);
  var i = keys.length;
  while (i--) {
    origin[keys[i]] = add[keys[i]];
  }
  return origin;
};

function hasOwnProperty(obj, prop) {
  return Object.prototype.hasOwnProperty.call(obj, prop);
}

}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./support/isBuffer":344,"_process":392,"inherits":343}],346:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  "use strict";
  exports.stripBOM = function(str) {
    if (str[0] === '\uFEFF') {
      return str.substring(1);
    } else {
      return str;
    }
  };

}).call(this);

},{}],347:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  "use strict";
  var builder, defaults, escapeCDATA, requiresCDATA, wrapCDATA,
    hasProp = {}.hasOwnProperty;

  builder = require('xmlbuilder');

  defaults = require('./defaults').defaults;

  requiresCDATA = function(entry) {
    return typeof entry === "string" && (entry.indexOf('&') >= 0 || entry.indexOf('>') >= 0 || entry.indexOf('<') >= 0);
  };

  wrapCDATA = function(entry) {
    return "<![CDATA[" + (escapeCDATA(entry)) + "]]>";
  };

  escapeCDATA = function(entry) {
    return entry.replace(']]>', ']]]]><![CDATA[>');
  };

  exports.Builder = (function() {
    function Builder(opts) {
      var key, ref, value;
      this.options = {};
      ref = defaults["0.2"];
      for (key in ref) {
        if (!hasProp.call(ref, key)) continue;
        value = ref[key];
        this.options[key] = value;
      }
      for (key in opts) {
        if (!hasProp.call(opts, key)) continue;
        value = opts[key];
        this.options[key] = value;
      }
    }

    Builder.prototype.buildObject = function(rootObj) {
      var attrkey, charkey, render, rootElement, rootName;
      attrkey = this.options.attrkey;
      charkey = this.options.charkey;
      if ((Object.keys(rootObj).length === 1) && (this.options.rootName === defaults['0.2'].rootName)) {
        rootName = Object.keys(rootObj)[0];
        rootObj = rootObj[rootName];
      } else {
        rootName = this.options.rootName;
      }
      render = (function(_this) {
        return function(element, obj) {
          var attr, child, entry, index, key, value;
          if (typeof obj !== 'object') {
            if (_this.options.cdata && requiresCDATA(obj)) {
              element.raw(wrapCDATA(obj));
            } else {
              element.txt(obj);
            }
          } else if (Array.isArray(obj)) {
            for (index in obj) {
              if (!hasProp.call(obj, index)) continue;
              child = obj[index];
              for (key in child) {
                entry = child[key];
                element = render(element.ele(key), entry).up();
              }
            }
          } else {
            for (key in obj) {
              if (!hasProp.call(obj, key)) continue;
              child = obj[key];
              if (key === attrkey) {
                if (typeof child === "object") {
                  for (attr in child) {
                    value = child[attr];
                    element = element.att(attr, value);
                  }
                }
              } else if (key === charkey) {
                if (_this.options.cdata && requiresCDATA(child)) {
                  element = element.raw(wrapCDATA(child));
                } else {
                  element = element.txt(child);
                }
              } else if (Array.isArray(child)) {
                for (index in child) {
                  if (!hasProp.call(child, index)) continue;
                  entry = child[index];
                  if (typeof entry === 'string') {
                    if (_this.options.cdata && requiresCDATA(entry)) {
                      element = element.ele(key).raw(wrapCDATA(entry)).up();
                    } else {
                      element = element.ele(key, entry).up();
                    }
                  } else {
                    element = render(element.ele(key), entry).up();
                  }
                }
              } else if (typeof child === "object") {
                element = render(element.ele(key), child).up();
              } else {
                if (typeof child === 'string' && _this.options.cdata && requiresCDATA(child)) {
                  element = element.ele(key).raw(wrapCDATA(child)).up();
                } else {
                  if (child == null) {
                    child = '';
                  }
                  element = element.ele(key, child.toString()).up();
                }
              }
            }
          }
          return element;
        };
      })(this);
      rootElement = builder.create(rootName, this.options.xmldec, this.options.doctype, {
        headless: this.options.headless,
        allowSurrogateChars: this.options.allowSurrogateChars
      });
      return render(rootElement, rootObj).end(this.options.renderOpts);
    };

    return Builder;

  })();

}).call(this);

},{"./defaults":348,"xmlbuilder":384}],348:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  exports.defaults = {
    "0.1": {
      explicitCharkey: false,
      trim: true,
      normalize: true,
      normalizeTags: false,
      attrkey: "@",
      charkey: "#",
      explicitArray: false,
      ignoreAttrs: false,
      mergeAttrs: false,
      explicitRoot: false,
      validator: null,
      xmlns: false,
      explicitChildren: false,
      childkey: '@@',
      charsAsChildren: false,
      includeWhiteChars: false,
      async: false,
      strict: true,
      attrNameProcessors: null,
      attrValueProcessors: null,
      tagNameProcessors: null,
      valueProcessors: null,
      emptyTag: ''
    },
    "0.2": {
      explicitCharkey: false,
      trim: false,
      normalize: false,
      normalizeTags: false,
      attrkey: "$",
      charkey: "_",
      explicitArray: true,
      ignoreAttrs: false,
      mergeAttrs: false,
      explicitRoot: true,
      validator: null,
      xmlns: false,
      explicitChildren: false,
      preserveChildrenOrder: false,
      childkey: '$$',
      charsAsChildren: false,
      includeWhiteChars: false,
      async: false,
      strict: true,
      attrNameProcessors: null,
      attrValueProcessors: null,
      tagNameProcessors: null,
      valueProcessors: null,
      rootName: 'root',
      xmldec: {
        'version': '1.0',
        'encoding': 'UTF-8',
        'standalone': true
      },
      doctype: null,
      renderOpts: {
        'pretty': true,
        'indent': '  ',
        'newline': '\n'
      },
      headless: false,
      chunkSize: 10000,
      emptyTag: '',
      cdata: false
    }
  };

}).call(this);

},{}],349:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  "use strict";
  var bom, defaults, events, isEmpty, processItem, processors, sax, setImmediate,
    bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; },
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  sax = require('sax');

  events = require('events');

  bom = require('./bom');

  processors = require('./processors');

  setImmediate = require('timers').setImmediate;

  defaults = require('./defaults').defaults;

  isEmpty = function(thing) {
    return typeof thing === "object" && (thing != null) && Object.keys(thing).length === 0;
  };

  processItem = function(processors, item, key) {
    var i, len, process;
    for (i = 0, len = processors.length; i < len; i++) {
      process = processors[i];
      item = process(item, key);
    }
    return item;
  };

  exports.Parser = (function(superClass) {
    extend(Parser, superClass);

    function Parser(opts) {
      this.parseStringPromise = bind(this.parseStringPromise, this);
      this.parseString = bind(this.parseString, this);
      this.reset = bind(this.reset, this);
      this.assignOrPush = bind(this.assignOrPush, this);
      this.processAsync = bind(this.processAsync, this);
      var key, ref, value;
      if (!(this instanceof exports.Parser)) {
        return new exports.Parser(opts);
      }
      this.options = {};
      ref = defaults["0.2"];
      for (key in ref) {
        if (!hasProp.call(ref, key)) continue;
        value = ref[key];
        this.options[key] = value;
      }
      for (key in opts) {
        if (!hasProp.call(opts, key)) continue;
        value = opts[key];
        this.options[key] = value;
      }
      if (this.options.xmlns) {
        this.options.xmlnskey = this.options.attrkey + "ns";
      }
      if (this.options.normalizeTags) {
        if (!this.options.tagNameProcessors) {
          this.options.tagNameProcessors = [];
        }
        this.options.tagNameProcessors.unshift(processors.normalize);
      }
      this.reset();
    }

    Parser.prototype.processAsync = function() {
      var chunk, err;
      try {
        if (this.remaining.length <= this.options.chunkSize) {
          chunk = this.remaining;
          this.remaining = '';
          this.saxParser = this.saxParser.write(chunk);
          return this.saxParser.close();
        } else {
          chunk = this.remaining.substr(0, this.options.chunkSize);
          this.remaining = this.remaining.substr(this.options.chunkSize, this.remaining.length);
          this.saxParser = this.saxParser.write(chunk);
          return setImmediate(this.processAsync);
        }
      } catch (error1) {
        err = error1;
        if (!this.saxParser.errThrown) {
          this.saxParser.errThrown = true;
          return this.emit(err);
        }
      }
    };

    Parser.prototype.assignOrPush = function(obj, key, newValue) {
      if (!(key in obj)) {
        if (!this.options.explicitArray) {
          return obj[key] = newValue;
        } else {
          return obj[key] = [newValue];
        }
      } else {
        if (!(obj[key] instanceof Array)) {
          obj[key] = [obj[key]];
        }
        return obj[key].push(newValue);
      }
    };

    Parser.prototype.reset = function() {
      var attrkey, charkey, ontext, stack;
      this.removeAllListeners();
      this.saxParser = sax.parser(this.options.strict, {
        trim: false,
        normalize: false,
        xmlns: this.options.xmlns
      });
      this.saxParser.errThrown = false;
      this.saxParser.onerror = (function(_this) {
        return function(error) {
          _this.saxParser.resume();
          if (!_this.saxParser.errThrown) {
            _this.saxParser.errThrown = true;
            return _this.emit("error", error);
          }
        };
      })(this);
      this.saxParser.onend = (function(_this) {
        return function() {
          if (!_this.saxParser.ended) {
            _this.saxParser.ended = true;
            return _this.emit("end", _this.resultObject);
          }
        };
      })(this);
      this.saxParser.ended = false;
      this.EXPLICIT_CHARKEY = this.options.explicitCharkey;
      this.resultObject = null;
      stack = [];
      attrkey = this.options.attrkey;
      charkey = this.options.charkey;
      this.saxParser.onopentag = (function(_this) {
        return function(node) {
          var key, newValue, obj, processedKey, ref;
          obj = {};
          obj[charkey] = "";
          if (!_this.options.ignoreAttrs) {
            ref = node.attributes;
            for (key in ref) {
              if (!hasProp.call(ref, key)) continue;
              if (!(attrkey in obj) && !_this.options.mergeAttrs) {
                obj[attrkey] = {};
              }
              newValue = _this.options.attrValueProcessors ? processItem(_this.options.attrValueProcessors, node.attributes[key], key) : node.attributes[key];
              processedKey = _this.options.attrNameProcessors ? processItem(_this.options.attrNameProcessors, key) : key;
              if (_this.options.mergeAttrs) {
                _this.assignOrPush(obj, processedKey, newValue);
              } else {
                obj[attrkey][processedKey] = newValue;
              }
            }
          }
          obj["#name"] = _this.options.tagNameProcessors ? processItem(_this.options.tagNameProcessors, node.name) : node.name;
          if (_this.options.xmlns) {
            obj[_this.options.xmlnskey] = {
              uri: node.uri,
              local: node.local
            };
          }
          return stack.push(obj);
        };
      })(this);
      this.saxParser.onclosetag = (function(_this) {
        return function() {
          var cdata, emptyStr, key, node, nodeName, obj, objClone, old, s, xpath;
          obj = stack.pop();
          nodeName = obj["#name"];
          if (!_this.options.explicitChildren || !_this.options.preserveChildrenOrder) {
            delete obj["#name"];
          }
          if (obj.cdata === true) {
            cdata = obj.cdata;
            delete obj.cdata;
          }
          s = stack[stack.length - 1];
          if (obj[charkey].match(/^\s*$/) && !cdata) {
            emptyStr = obj[charkey];
            delete obj[charkey];
          } else {
            if (_this.options.trim) {
              obj[charkey] = obj[charkey].trim();
            }
            if (_this.options.normalize) {
              obj[charkey] = obj[charkey].replace(/\s{2,}/g, " ").trim();
            }
            obj[charkey] = _this.options.valueProcessors ? processItem(_this.options.valueProcessors, obj[charkey], nodeName) : obj[charkey];
            if (Object.keys(obj).length === 1 && charkey in obj && !_this.EXPLICIT_CHARKEY) {
              obj = obj[charkey];
            }
          }
          if (isEmpty(obj)) {
            obj = _this.options.emptyTag !== '' ? _this.options.emptyTag : emptyStr;
          }
          if (_this.options.validator != null) {
            xpath = "/" + ((function() {
              var i, len, results;
              results = [];
              for (i = 0, len = stack.length; i < len; i++) {
                node = stack[i];
                results.push(node["#name"]);
              }
              return results;
            })()).concat(nodeName).join("/");
            (function() {
              var err;
              try {
                return obj = _this.options.validator(xpath, s && s[nodeName], obj);
              } catch (error1) {
                err = error1;
                return _this.emit("error", err);
              }
            })();
          }
          if (_this.options.explicitChildren && !_this.options.mergeAttrs && typeof obj === 'object') {
            if (!_this.options.preserveChildrenOrder) {
              node = {};
              if (_this.options.attrkey in obj) {
                node[_this.options.attrkey] = obj[_this.options.attrkey];
                delete obj[_this.options.attrkey];
              }
              if (!_this.options.charsAsChildren && _this.options.charkey in obj) {
                node[_this.options.charkey] = obj[_this.options.charkey];
                delete obj[_this.options.charkey];
              }
              if (Object.getOwnPropertyNames(obj).length > 0) {
                node[_this.options.childkey] = obj;
              }
              obj = node;
            } else if (s) {
              s[_this.options.childkey] = s[_this.options.childkey] || [];
              objClone = {};
              for (key in obj) {
                if (!hasProp.call(obj, key)) continue;
                objClone[key] = obj[key];
              }
              s[_this.options.childkey].push(objClone);
              delete obj["#name"];
              if (Object.keys(obj).length === 1 && charkey in obj && !_this.EXPLICIT_CHARKEY) {
                obj = obj[charkey];
              }
            }
          }
          if (stack.length > 0) {
            return _this.assignOrPush(s, nodeName, obj);
          } else {
            if (_this.options.explicitRoot) {
              old = obj;
              obj = {};
              obj[nodeName] = old;
            }
            _this.resultObject = obj;
            _this.saxParser.ended = true;
            return _this.emit("end", _this.resultObject);
          }
        };
      })(this);
      ontext = (function(_this) {
        return function(text) {
          var charChild, s;
          s = stack[stack.length - 1];
          if (s) {
            s[charkey] += text;
            if (_this.options.explicitChildren && _this.options.preserveChildrenOrder && _this.options.charsAsChildren && (_this.options.includeWhiteChars || text.replace(/\\n/g, '').trim() !== '')) {
              s[_this.options.childkey] = s[_this.options.childkey] || [];
              charChild = {
                '#name': '__text__'
              };
              charChild[charkey] = text;
              if (_this.options.normalize) {
                charChild[charkey] = charChild[charkey].replace(/\s{2,}/g, " ").trim();
              }
              s[_this.options.childkey].push(charChild);
            }
            return s;
          }
        };
      })(this);
      this.saxParser.ontext = ontext;
      return this.saxParser.oncdata = (function(_this) {
        return function(text) {
          var s;
          s = ontext(text);
          if (s) {
            return s.cdata = true;
          }
        };
      })(this);
    };

    Parser.prototype.parseString = function(str, cb) {
      var err;
      if ((cb != null) && typeof cb === "function") {
        this.on("end", function(result) {
          this.reset();
          return cb(null, result);
        });
        this.on("error", function(err) {
          this.reset();
          return cb(err);
        });
      }
      try {
        str = str.toString();
        if (str.trim() === '') {
          this.emit("end", null);
          return true;
        }
        str = bom.stripBOM(str);
        if (this.options.async) {
          this.remaining = str;
          setImmediate(this.processAsync);
          return this.saxParser;
        }
        return this.saxParser.write(str).close();
      } catch (error1) {
        err = error1;
        if (!(this.saxParser.errThrown || this.saxParser.ended)) {
          this.emit('error', err);
          return this.saxParser.errThrown = true;
        } else if (this.saxParser.ended) {
          throw err;
        }
      }
    };

    Parser.prototype.parseStringPromise = function(str) {
      return new Promise((function(_this) {
        return function(resolve, reject) {
          return _this.parseString(str, function(err, value) {
            if (err) {
              return reject(err);
            } else {
              return resolve(value);
            }
          });
        };
      })(this));
    };

    return Parser;

  })(events);

  exports.parseString = function(str, a, b) {
    var cb, options, parser;
    if (b != null) {
      if (typeof b === 'function') {
        cb = b;
      }
      if (typeof a === 'object') {
        options = a;
      }
    } else {
      if (typeof a === 'function') {
        cb = a;
      }
      options = {};
    }
    parser = new exports.Parser(options);
    return parser.parseString(str, cb);
  };

  exports.parseStringPromise = function(str, a) {
    var options, parser;
    if (typeof a === 'object') {
      options = a;
    }
    parser = new exports.Parser(options);
    return parser.parseStringPromise(str);
  };

}).call(this);

},{"./bom":346,"./defaults":348,"./processors":350,"events":296,"sax":338,"timers":341}],350:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  "use strict";
  var prefixMatch;

  prefixMatch = new RegExp(/(?!xmlns)^.*:/);

  exports.normalize = function(str) {
    return str.toLowerCase();
  };

  exports.firstCharLowerCase = function(str) {
    return str.charAt(0).toLowerCase() + str.slice(1);
  };

  exports.stripPrefix = function(str) {
    return str.replace(prefixMatch, '');
  };

  exports.parseNumbers = function(str) {
    if (!isNaN(str)) {
      str = str % 1 === 0 ? parseInt(str, 10) : parseFloat(str);
    }
    return str;
  };

  exports.parseBooleans = function(str) {
    if (/^(?:true|false)$/i.test(str)) {
      str = str.toLowerCase() === 'true';
    }
    return str;
  };

}).call(this);

},{}],351:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  "use strict";
  var builder, defaults, parser, processors,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  defaults = require('./defaults');

  builder = require('./builder');

  parser = require('./parser');

  processors = require('./processors');

  exports.defaults = defaults.defaults;

  exports.processors = processors;

  exports.ValidationError = (function(superClass) {
    extend(ValidationError, superClass);

    function ValidationError(message) {
      this.message = message;
    }

    return ValidationError;

  })(Error);

  exports.Builder = builder.Builder;

  exports.Parser = parser.Parser;

  exports.parseString = parser.parseString;

  exports.parseStringPromise = parser.parseStringPromise;

}).call(this);

},{"./builder":347,"./defaults":348,"./parser":349,"./processors":350}],352:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  module.exports = {
    Disconnected: 1,
    Preceding: 2,
    Following: 4,
    Contains: 8,
    ContainedBy: 16,
    ImplementationSpecific: 32
  };

}).call(this);

},{}],353:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  module.exports = {
    Element: 1,
    Attribute: 2,
    Text: 3,
    CData: 4,
    EntityReference: 5,
    EntityDeclaration: 6,
    ProcessingInstruction: 7,
    Comment: 8,
    Document: 9,
    DocType: 10,
    DocumentFragment: 11,
    NotationDeclaration: 12,
    Declaration: 201,
    Raw: 202,
    AttributeDeclaration: 203,
    ElementDeclaration: 204,
    Dummy: 205
  };

}).call(this);

},{}],354:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var assign, getValue, isArray, isEmpty, isFunction, isObject, isPlainObject,
    slice = [].slice,
    hasProp = {}.hasOwnProperty;

  assign = function() {
    var i, key, len, source, sources, target;
    target = arguments[0], sources = 2 <= arguments.length ? slice.call(arguments, 1) : [];
    if (isFunction(Object.assign)) {
      Object.assign.apply(null, arguments);
    } else {
      for (i = 0, len = sources.length; i < len; i++) {
        source = sources[i];
        if (source != null) {
          for (key in source) {
            if (!hasProp.call(source, key)) continue;
            target[key] = source[key];
          }
        }
      }
    }
    return target;
  };

  isFunction = function(val) {
    return !!val && Object.prototype.toString.call(val) === '[object Function]';
  };

  isObject = function(val) {
    var ref;
    return !!val && ((ref = typeof val) === 'function' || ref === 'object');
  };

  isArray = function(val) {
    if (isFunction(Array.isArray)) {
      return Array.isArray(val);
    } else {
      return Object.prototype.toString.call(val) === '[object Array]';
    }
  };

  isEmpty = function(val) {
    var key;
    if (isArray(val)) {
      return !val.length;
    } else {
      for (key in val) {
        if (!hasProp.call(val, key)) continue;
        return false;
      }
      return true;
    }
  };

  isPlainObject = function(val) {
    var ctor, proto;
    return isObject(val) && (proto = Object.getPrototypeOf(val)) && (ctor = proto.constructor) && (typeof ctor === 'function') && (ctor instanceof ctor) && (Function.prototype.toString.call(ctor) === Function.prototype.toString.call(Object));
  };

  getValue = function(obj) {
    if (isFunction(obj.valueOf)) {
      return obj.valueOf();
    } else {
      return obj;
    }
  };

  module.exports.assign = assign;

  module.exports.isFunction = isFunction;

  module.exports.isObject = isObject;

  module.exports.isArray = isArray;

  module.exports.isEmpty = isEmpty;

  module.exports.isPlainObject = isPlainObject;

  module.exports.getValue = getValue;

}).call(this);

},{}],355:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  module.exports = {
    None: 0,
    OpenTag: 1,
    InsideTag: 2,
    CloseTag: 3
  };

}).call(this);

},{}],356:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var NodeType, XMLAttribute, XMLNode;

  NodeType = require('./NodeType');

  XMLNode = require('./XMLNode');

  module.exports = XMLAttribute = (function() {
    function XMLAttribute(parent, name, value) {
      this.parent = parent;
      if (this.parent) {
        this.options = this.parent.options;
        this.stringify = this.parent.stringify;
      }
      if (name == null) {
        throw new Error("Missing attribute name. " + this.debugInfo(name));
      }
      this.name = this.stringify.name(name);
      this.value = this.stringify.attValue(value);
      this.type = NodeType.Attribute;
      this.isId = false;
      this.schemaTypeInfo = null;
    }

    Object.defineProperty(XMLAttribute.prototype, 'nodeType', {
      get: function() {
        return this.type;
      }
    });

    Object.defineProperty(XMLAttribute.prototype, 'ownerElement', {
      get: function() {
        return this.parent;
      }
    });

    Object.defineProperty(XMLAttribute.prototype, 'textContent', {
      get: function() {
        return this.value;
      },
      set: function(value) {
        return this.value = value || '';
      }
    });

    Object.defineProperty(XMLAttribute.prototype, 'namespaceURI', {
      get: function() {
        return '';
      }
    });

    Object.defineProperty(XMLAttribute.prototype, 'prefix', {
      get: function() {
        return '';
      }
    });

    Object.defineProperty(XMLAttribute.prototype, 'localName', {
      get: function() {
        return this.name;
      }
    });

    Object.defineProperty(XMLAttribute.prototype, 'specified', {
      get: function() {
        return true;
      }
    });

    XMLAttribute.prototype.clone = function() {
      return Object.create(this);
    };

    XMLAttribute.prototype.toString = function(options) {
      return this.options.writer.attribute(this, this.options.writer.filterOptions(options));
    };

    XMLAttribute.prototype.debugInfo = function(name) {
      name = name || this.name;
      if (name == null) {
        return "parent: <" + this.parent.name + ">";
      } else {
        return "attribute: {" + name + "}, parent: <" + this.parent.name + ">";
      }
    };

    XMLAttribute.prototype.isEqualNode = function(node) {
      if (node.namespaceURI !== this.namespaceURI) {
        return false;
      }
      if (node.prefix !== this.prefix) {
        return false;
      }
      if (node.localName !== this.localName) {
        return false;
      }
      if (node.value !== this.value) {
        return false;
      }
      return true;
    };

    return XMLAttribute;

  })();

}).call(this);

},{"./NodeType":353,"./XMLNode":375}],357:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var NodeType, XMLCData, XMLCharacterData,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  NodeType = require('./NodeType');

  XMLCharacterData = require('./XMLCharacterData');

  module.exports = XMLCData = (function(superClass) {
    extend(XMLCData, superClass);

    function XMLCData(parent, text) {
      XMLCData.__super__.constructor.call(this, parent);
      if (text == null) {
        throw new Error("Missing CDATA text. " + this.debugInfo());
      }
      this.name = "#cdata-section";
      this.type = NodeType.CData;
      this.value = this.stringify.cdata(text);
    }

    XMLCData.prototype.clone = function() {
      return Object.create(this);
    };

    XMLCData.prototype.toString = function(options) {
      return this.options.writer.cdata(this, this.options.writer.filterOptions(options));
    };

    return XMLCData;

  })(XMLCharacterData);

}).call(this);

},{"./NodeType":353,"./XMLCharacterData":358}],358:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var XMLCharacterData, XMLNode,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  XMLNode = require('./XMLNode');

  module.exports = XMLCharacterData = (function(superClass) {
    extend(XMLCharacterData, superClass);

    function XMLCharacterData(parent) {
      XMLCharacterData.__super__.constructor.call(this, parent);
      this.value = '';
    }

    Object.defineProperty(XMLCharacterData.prototype, 'data', {
      get: function() {
        return this.value;
      },
      set: function(value) {
        return this.value = value || '';
      }
    });

    Object.defineProperty(XMLCharacterData.prototype, 'length', {
      get: function() {
        return this.value.length;
      }
    });

    Object.defineProperty(XMLCharacterData.prototype, 'textContent', {
      get: function() {
        return this.value;
      },
      set: function(value) {
        return this.value = value || '';
      }
    });

    XMLCharacterData.prototype.clone = function() {
      return Object.create(this);
    };

    XMLCharacterData.prototype.substringData = function(offset, count) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLCharacterData.prototype.appendData = function(arg) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLCharacterData.prototype.insertData = function(offset, arg) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLCharacterData.prototype.deleteData = function(offset, count) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLCharacterData.prototype.replaceData = function(offset, count, arg) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLCharacterData.prototype.isEqualNode = function(node) {
      if (!XMLCharacterData.__super__.isEqualNode.apply(this, arguments).isEqualNode(node)) {
        return false;
      }
      if (node.data !== this.data) {
        return false;
      }
      return true;
    };

    return XMLCharacterData;

  })(XMLNode);

}).call(this);

},{"./XMLNode":375}],359:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var NodeType, XMLCharacterData, XMLComment,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  NodeType = require('./NodeType');

  XMLCharacterData = require('./XMLCharacterData');

  module.exports = XMLComment = (function(superClass) {
    extend(XMLComment, superClass);

    function XMLComment(parent, text) {
      XMLComment.__super__.constructor.call(this, parent);
      if (text == null) {
        throw new Error("Missing comment text. " + this.debugInfo());
      }
      this.name = "#comment";
      this.type = NodeType.Comment;
      this.value = this.stringify.comment(text);
    }

    XMLComment.prototype.clone = function() {
      return Object.create(this);
    };

    XMLComment.prototype.toString = function(options) {
      return this.options.writer.comment(this, this.options.writer.filterOptions(options));
    };

    return XMLComment;

  })(XMLCharacterData);

}).call(this);

},{"./NodeType":353,"./XMLCharacterData":358}],360:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var XMLDOMConfiguration, XMLDOMErrorHandler, XMLDOMStringList;

  XMLDOMErrorHandler = require('./XMLDOMErrorHandler');

  XMLDOMStringList = require('./XMLDOMStringList');

  module.exports = XMLDOMConfiguration = (function() {
    function XMLDOMConfiguration() {
      var clonedSelf;
      this.defaultParams = {
        "canonical-form": false,
        "cdata-sections": false,
        "comments": false,
        "datatype-normalization": false,
        "element-content-whitespace": true,
        "entities": true,
        "error-handler": new XMLDOMErrorHandler(),
        "infoset": true,
        "validate-if-schema": false,
        "namespaces": true,
        "namespace-declarations": true,
        "normalize-characters": false,
        "schema-location": '',
        "schema-type": '',
        "split-cdata-sections": true,
        "validate": false,
        "well-formed": true
      };
      this.params = clonedSelf = Object.create(this.defaultParams);
    }

    Object.defineProperty(XMLDOMConfiguration.prototype, 'parameterNames', {
      get: function() {
        return new XMLDOMStringList(Object.keys(this.defaultParams));
      }
    });

    XMLDOMConfiguration.prototype.getParameter = function(name) {
      if (this.params.hasOwnProperty(name)) {
        return this.params[name];
      } else {
        return null;
      }
    };

    XMLDOMConfiguration.prototype.canSetParameter = function(name, value) {
      return true;
    };

    XMLDOMConfiguration.prototype.setParameter = function(name, value) {
      if (value != null) {
        return this.params[name] = value;
      } else {
        return delete this.params[name];
      }
    };

    return XMLDOMConfiguration;

  })();

}).call(this);

},{"./XMLDOMErrorHandler":361,"./XMLDOMStringList":363}],361:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var XMLDOMErrorHandler;

  module.exports = XMLDOMErrorHandler = (function() {
    function XMLDOMErrorHandler() {}

    XMLDOMErrorHandler.prototype.handleError = function(error) {
      throw new Error(error);
    };

    return XMLDOMErrorHandler;

  })();

}).call(this);

},{}],362:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var XMLDOMImplementation;

  module.exports = XMLDOMImplementation = (function() {
    function XMLDOMImplementation() {}

    XMLDOMImplementation.prototype.hasFeature = function(feature, version) {
      return true;
    };

    XMLDOMImplementation.prototype.createDocumentType = function(qualifiedName, publicId, systemId) {
      throw new Error("This DOM method is not implemented.");
    };

    XMLDOMImplementation.prototype.createDocument = function(namespaceURI, qualifiedName, doctype) {
      throw new Error("This DOM method is not implemented.");
    };

    XMLDOMImplementation.prototype.createHTMLDocument = function(title) {
      throw new Error("This DOM method is not implemented.");
    };

    XMLDOMImplementation.prototype.getFeature = function(feature, version) {
      throw new Error("This DOM method is not implemented.");
    };

    return XMLDOMImplementation;

  })();

}).call(this);

},{}],363:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var XMLDOMStringList;

  module.exports = XMLDOMStringList = (function() {
    function XMLDOMStringList(arr) {
      this.arr = arr || [];
    }

    Object.defineProperty(XMLDOMStringList.prototype, 'length', {
      get: function() {
        return this.arr.length;
      }
    });

    XMLDOMStringList.prototype.item = function(index) {
      return this.arr[index] || null;
    };

    XMLDOMStringList.prototype.contains = function(str) {
      return this.arr.indexOf(str) !== -1;
    };

    return XMLDOMStringList;

  })();

}).call(this);

},{}],364:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var NodeType, XMLDTDAttList, XMLNode,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  XMLNode = require('./XMLNode');

  NodeType = require('./NodeType');

  module.exports = XMLDTDAttList = (function(superClass) {
    extend(XMLDTDAttList, superClass);

    function XMLDTDAttList(parent, elementName, attributeName, attributeType, defaultValueType, defaultValue) {
      XMLDTDAttList.__super__.constructor.call(this, parent);
      if (elementName == null) {
        throw new Error("Missing DTD element name. " + this.debugInfo());
      }
      if (attributeName == null) {
        throw new Error("Missing DTD attribute name. " + this.debugInfo(elementName));
      }
      if (!attributeType) {
        throw new Error("Missing DTD attribute type. " + this.debugInfo(elementName));
      }
      if (!defaultValueType) {
        throw new Error("Missing DTD attribute default. " + this.debugInfo(elementName));
      }
      if (defaultValueType.indexOf('#') !== 0) {
        defaultValueType = '#' + defaultValueType;
      }
      if (!defaultValueType.match(/^(#REQUIRED|#IMPLIED|#FIXED|#DEFAULT)$/)) {
        throw new Error("Invalid default value type; expected: #REQUIRED, #IMPLIED, #FIXED or #DEFAULT. " + this.debugInfo(elementName));
      }
      if (defaultValue && !defaultValueType.match(/^(#FIXED|#DEFAULT)$/)) {
        throw new Error("Default value only applies to #FIXED or #DEFAULT. " + this.debugInfo(elementName));
      }
      this.elementName = this.stringify.name(elementName);
      this.type = NodeType.AttributeDeclaration;
      this.attributeName = this.stringify.name(attributeName);
      this.attributeType = this.stringify.dtdAttType(attributeType);
      if (defaultValue) {
        this.defaultValue = this.stringify.dtdAttDefault(defaultValue);
      }
      this.defaultValueType = defaultValueType;
    }

    XMLDTDAttList.prototype.toString = function(options) {
      return this.options.writer.dtdAttList(this, this.options.writer.filterOptions(options));
    };

    return XMLDTDAttList;

  })(XMLNode);

}).call(this);

},{"./NodeType":353,"./XMLNode":375}],365:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var NodeType, XMLDTDElement, XMLNode,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  XMLNode = require('./XMLNode');

  NodeType = require('./NodeType');

  module.exports = XMLDTDElement = (function(superClass) {
    extend(XMLDTDElement, superClass);

    function XMLDTDElement(parent, name, value) {
      XMLDTDElement.__super__.constructor.call(this, parent);
      if (name == null) {
        throw new Error("Missing DTD element name. " + this.debugInfo());
      }
      if (!value) {
        value = '(#PCDATA)';
      }
      if (Array.isArray(value)) {
        value = '(' + value.join(',') + ')';
      }
      this.name = this.stringify.name(name);
      this.type = NodeType.ElementDeclaration;
      this.value = this.stringify.dtdElementValue(value);
    }

    XMLDTDElement.prototype.toString = function(options) {
      return this.options.writer.dtdElement(this, this.options.writer.filterOptions(options));
    };

    return XMLDTDElement;

  })(XMLNode);

}).call(this);

},{"./NodeType":353,"./XMLNode":375}],366:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var NodeType, XMLDTDEntity, XMLNode, isObject,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  isObject = require('./Utility').isObject;

  XMLNode = require('./XMLNode');

  NodeType = require('./NodeType');

  module.exports = XMLDTDEntity = (function(superClass) {
    extend(XMLDTDEntity, superClass);

    function XMLDTDEntity(parent, pe, name, value) {
      XMLDTDEntity.__super__.constructor.call(this, parent);
      if (name == null) {
        throw new Error("Missing DTD entity name. " + this.debugInfo(name));
      }
      if (value == null) {
        throw new Error("Missing DTD entity value. " + this.debugInfo(name));
      }
      this.pe = !!pe;
      this.name = this.stringify.name(name);
      this.type = NodeType.EntityDeclaration;
      if (!isObject(value)) {
        this.value = this.stringify.dtdEntityValue(value);
        this.internal = true;
      } else {
        if (!value.pubID && !value.sysID) {
          throw new Error("Public and/or system identifiers are required for an external entity. " + this.debugInfo(name));
        }
        if (value.pubID && !value.sysID) {
          throw new Error("System identifier is required for a public external entity. " + this.debugInfo(name));
        }
        this.internal = false;
        if (value.pubID != null) {
          this.pubID = this.stringify.dtdPubID(value.pubID);
        }
        if (value.sysID != null) {
          this.sysID = this.stringify.dtdSysID(value.sysID);
        }
        if (value.nData != null) {
          this.nData = this.stringify.dtdNData(value.nData);
        }
        if (this.pe && this.nData) {
          throw new Error("Notation declaration is not allowed in a parameter entity. " + this.debugInfo(name));
        }
      }
    }

    Object.defineProperty(XMLDTDEntity.prototype, 'publicId', {
      get: function() {
        return this.pubID;
      }
    });

    Object.defineProperty(XMLDTDEntity.prototype, 'systemId', {
      get: function() {
        return this.sysID;
      }
    });

    Object.defineProperty(XMLDTDEntity.prototype, 'notationName', {
      get: function() {
        return this.nData || null;
      }
    });

    Object.defineProperty(XMLDTDEntity.prototype, 'inputEncoding', {
      get: function() {
        return null;
      }
    });

    Object.defineProperty(XMLDTDEntity.prototype, 'xmlEncoding', {
      get: function() {
        return null;
      }
    });

    Object.defineProperty(XMLDTDEntity.prototype, 'xmlVersion', {
      get: function() {
        return null;
      }
    });

    XMLDTDEntity.prototype.toString = function(options) {
      return this.options.writer.dtdEntity(this, this.options.writer.filterOptions(options));
    };

    return XMLDTDEntity;

  })(XMLNode);

}).call(this);

},{"./NodeType":353,"./Utility":354,"./XMLNode":375}],367:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var NodeType, XMLDTDNotation, XMLNode,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  XMLNode = require('./XMLNode');

  NodeType = require('./NodeType');

  module.exports = XMLDTDNotation = (function(superClass) {
    extend(XMLDTDNotation, superClass);

    function XMLDTDNotation(parent, name, value) {
      XMLDTDNotation.__super__.constructor.call(this, parent);
      if (name == null) {
        throw new Error("Missing DTD notation name. " + this.debugInfo(name));
      }
      if (!value.pubID && !value.sysID) {
        throw new Error("Public or system identifiers are required for an external entity. " + this.debugInfo(name));
      }
      this.name = this.stringify.name(name);
      this.type = NodeType.NotationDeclaration;
      if (value.pubID != null) {
        this.pubID = this.stringify.dtdPubID(value.pubID);
      }
      if (value.sysID != null) {
        this.sysID = this.stringify.dtdSysID(value.sysID);
      }
    }

    Object.defineProperty(XMLDTDNotation.prototype, 'publicId', {
      get: function() {
        return this.pubID;
      }
    });

    Object.defineProperty(XMLDTDNotation.prototype, 'systemId', {
      get: function() {
        return this.sysID;
      }
    });

    XMLDTDNotation.prototype.toString = function(options) {
      return this.options.writer.dtdNotation(this, this.options.writer.filterOptions(options));
    };

    return XMLDTDNotation;

  })(XMLNode);

}).call(this);

},{"./NodeType":353,"./XMLNode":375}],368:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var NodeType, XMLDeclaration, XMLNode, isObject,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  isObject = require('./Utility').isObject;

  XMLNode = require('./XMLNode');

  NodeType = require('./NodeType');

  module.exports = XMLDeclaration = (function(superClass) {
    extend(XMLDeclaration, superClass);

    function XMLDeclaration(parent, version, encoding, standalone) {
      var ref;
      XMLDeclaration.__super__.constructor.call(this, parent);
      if (isObject(version)) {
        ref = version, version = ref.version, encoding = ref.encoding, standalone = ref.standalone;
      }
      if (!version) {
        version = '1.0';
      }
      this.type = NodeType.Declaration;
      this.version = this.stringify.xmlVersion(version);
      if (encoding != null) {
        this.encoding = this.stringify.xmlEncoding(encoding);
      }
      if (standalone != null) {
        this.standalone = this.stringify.xmlStandalone(standalone);
      }
    }

    XMLDeclaration.prototype.toString = function(options) {
      return this.options.writer.declaration(this, this.options.writer.filterOptions(options));
    };

    return XMLDeclaration;

  })(XMLNode);

}).call(this);

},{"./NodeType":353,"./Utility":354,"./XMLNode":375}],369:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var NodeType, XMLDTDAttList, XMLDTDElement, XMLDTDEntity, XMLDTDNotation, XMLDocType, XMLNamedNodeMap, XMLNode, isObject,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  isObject = require('./Utility').isObject;

  XMLNode = require('./XMLNode');

  NodeType = require('./NodeType');

  XMLDTDAttList = require('./XMLDTDAttList');

  XMLDTDEntity = require('./XMLDTDEntity');

  XMLDTDElement = require('./XMLDTDElement');

  XMLDTDNotation = require('./XMLDTDNotation');

  XMLNamedNodeMap = require('./XMLNamedNodeMap');

  module.exports = XMLDocType = (function(superClass) {
    extend(XMLDocType, superClass);

    function XMLDocType(parent, pubID, sysID) {
      var child, i, len, ref, ref1, ref2;
      XMLDocType.__super__.constructor.call(this, parent);
      this.type = NodeType.DocType;
      if (parent.children) {
        ref = parent.children;
        for (i = 0, len = ref.length; i < len; i++) {
          child = ref[i];
          if (child.type === NodeType.Element) {
            this.name = child.name;
            break;
          }
        }
      }
      this.documentObject = parent;
      if (isObject(pubID)) {
        ref1 = pubID, pubID = ref1.pubID, sysID = ref1.sysID;
      }
      if (sysID == null) {
        ref2 = [pubID, sysID], sysID = ref2[0], pubID = ref2[1];
      }
      if (pubID != null) {
        this.pubID = this.stringify.dtdPubID(pubID);
      }
      if (sysID != null) {
        this.sysID = this.stringify.dtdSysID(sysID);
      }
    }

    Object.defineProperty(XMLDocType.prototype, 'entities', {
      get: function() {
        var child, i, len, nodes, ref;
        nodes = {};
        ref = this.children;
        for (i = 0, len = ref.length; i < len; i++) {
          child = ref[i];
          if ((child.type === NodeType.EntityDeclaration) && !child.pe) {
            nodes[child.name] = child;
          }
        }
        return new XMLNamedNodeMap(nodes);
      }
    });

    Object.defineProperty(XMLDocType.prototype, 'notations', {
      get: function() {
        var child, i, len, nodes, ref;
        nodes = {};
        ref = this.children;
        for (i = 0, len = ref.length; i < len; i++) {
          child = ref[i];
          if (child.type === NodeType.NotationDeclaration) {
            nodes[child.name] = child;
          }
        }
        return new XMLNamedNodeMap(nodes);
      }
    });

    Object.defineProperty(XMLDocType.prototype, 'publicId', {
      get: function() {
        return this.pubID;
      }
    });

    Object.defineProperty(XMLDocType.prototype, 'systemId', {
      get: function() {
        return this.sysID;
      }
    });

    Object.defineProperty(XMLDocType.prototype, 'internalSubset', {
      get: function() {
        throw new Error("This DOM method is not implemented." + this.debugInfo());
      }
    });

    XMLDocType.prototype.element = function(name, value) {
      var child;
      child = new XMLDTDElement(this, name, value);
      this.children.push(child);
      return this;
    };

    XMLDocType.prototype.attList = function(elementName, attributeName, attributeType, defaultValueType, defaultValue) {
      var child;
      child = new XMLDTDAttList(this, elementName, attributeName, attributeType, defaultValueType, defaultValue);
      this.children.push(child);
      return this;
    };

    XMLDocType.prototype.entity = function(name, value) {
      var child;
      child = new XMLDTDEntity(this, false, name, value);
      this.children.push(child);
      return this;
    };

    XMLDocType.prototype.pEntity = function(name, value) {
      var child;
      child = new XMLDTDEntity(this, true, name, value);
      this.children.push(child);
      return this;
    };

    XMLDocType.prototype.notation = function(name, value) {
      var child;
      child = new XMLDTDNotation(this, name, value);
      this.children.push(child);
      return this;
    };

    XMLDocType.prototype.toString = function(options) {
      return this.options.writer.docType(this, this.options.writer.filterOptions(options));
    };

    XMLDocType.prototype.ele = function(name, value) {
      return this.element(name, value);
    };

    XMLDocType.prototype.att = function(elementName, attributeName, attributeType, defaultValueType, defaultValue) {
      return this.attList(elementName, attributeName, attributeType, defaultValueType, defaultValue);
    };

    XMLDocType.prototype.ent = function(name, value) {
      return this.entity(name, value);
    };

    XMLDocType.prototype.pent = function(name, value) {
      return this.pEntity(name, value);
    };

    XMLDocType.prototype.not = function(name, value) {
      return this.notation(name, value);
    };

    XMLDocType.prototype.up = function() {
      return this.root() || this.documentObject;
    };

    XMLDocType.prototype.isEqualNode = function(node) {
      if (!XMLDocType.__super__.isEqualNode.apply(this, arguments).isEqualNode(node)) {
        return false;
      }
      if (node.name !== this.name) {
        return false;
      }
      if (node.publicId !== this.publicId) {
        return false;
      }
      if (node.systemId !== this.systemId) {
        return false;
      }
      return true;
    };

    return XMLDocType;

  })(XMLNode);

}).call(this);

},{"./NodeType":353,"./Utility":354,"./XMLDTDAttList":364,"./XMLDTDElement":365,"./XMLDTDEntity":366,"./XMLDTDNotation":367,"./XMLNamedNodeMap":374,"./XMLNode":375}],370:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var NodeType, XMLDOMConfiguration, XMLDOMImplementation, XMLDocument, XMLNode, XMLStringWriter, XMLStringifier, isPlainObject,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  isPlainObject = require('./Utility').isPlainObject;

  XMLDOMImplementation = require('./XMLDOMImplementation');

  XMLDOMConfiguration = require('./XMLDOMConfiguration');

  XMLNode = require('./XMLNode');

  NodeType = require('./NodeType');

  XMLStringifier = require('./XMLStringifier');

  XMLStringWriter = require('./XMLStringWriter');

  module.exports = XMLDocument = (function(superClass) {
    extend(XMLDocument, superClass);

    function XMLDocument(options) {
      XMLDocument.__super__.constructor.call(this, null);
      this.name = "#document";
      this.type = NodeType.Document;
      this.documentURI = null;
      this.domConfig = new XMLDOMConfiguration();
      options || (options = {});
      if (!options.writer) {
        options.writer = new XMLStringWriter();
      }
      this.options = options;
      this.stringify = new XMLStringifier(options);
    }

    Object.defineProperty(XMLDocument.prototype, 'implementation', {
      value: new XMLDOMImplementation()
    });

    Object.defineProperty(XMLDocument.prototype, 'doctype', {
      get: function() {
        var child, i, len, ref;
        ref = this.children;
        for (i = 0, len = ref.length; i < len; i++) {
          child = ref[i];
          if (child.type === NodeType.DocType) {
            return child;
          }
        }
        return null;
      }
    });

    Object.defineProperty(XMLDocument.prototype, 'documentElement', {
      get: function() {
        return this.rootObject || null;
      }
    });

    Object.defineProperty(XMLDocument.prototype, 'inputEncoding', {
      get: function() {
        return null;
      }
    });

    Object.defineProperty(XMLDocument.prototype, 'strictErrorChecking', {
      get: function() {
        return false;
      }
    });

    Object.defineProperty(XMLDocument.prototype, 'xmlEncoding', {
      get: function() {
        if (this.children.length !== 0 && this.children[0].type === NodeType.Declaration) {
          return this.children[0].encoding;
        } else {
          return null;
        }
      }
    });

    Object.defineProperty(XMLDocument.prototype, 'xmlStandalone', {
      get: function() {
        if (this.children.length !== 0 && this.children[0].type === NodeType.Declaration) {
          return this.children[0].standalone === 'yes';
        } else {
          return false;
        }
      }
    });

    Object.defineProperty(XMLDocument.prototype, 'xmlVersion', {
      get: function() {
        if (this.children.length !== 0 && this.children[0].type === NodeType.Declaration) {
          return this.children[0].version;
        } else {
          return "1.0";
        }
      }
    });

    Object.defineProperty(XMLDocument.prototype, 'URL', {
      get: function() {
        return this.documentURI;
      }
    });

    Object.defineProperty(XMLDocument.prototype, 'origin', {
      get: function() {
        return null;
      }
    });

    Object.defineProperty(XMLDocument.prototype, 'compatMode', {
      get: function() {
        return null;
      }
    });

    Object.defineProperty(XMLDocument.prototype, 'characterSet', {
      get: function() {
        return null;
      }
    });

    Object.defineProperty(XMLDocument.prototype, 'contentType', {
      get: function() {
        return null;
      }
    });

    XMLDocument.prototype.end = function(writer) {
      var writerOptions;
      writerOptions = {};
      if (!writer) {
        writer = this.options.writer;
      } else if (isPlainObject(writer)) {
        writerOptions = writer;
        writer = this.options.writer;
      }
      return writer.document(this, writer.filterOptions(writerOptions));
    };

    XMLDocument.prototype.toString = function(options) {
      return this.options.writer.document(this, this.options.writer.filterOptions(options));
    };

    XMLDocument.prototype.createElement = function(tagName) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.createDocumentFragment = function() {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.createTextNode = function(data) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.createComment = function(data) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.createCDATASection = function(data) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.createProcessingInstruction = function(target, data) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.createAttribute = function(name) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.createEntityReference = function(name) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.getElementsByTagName = function(tagname) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.importNode = function(importedNode, deep) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.createElementNS = function(namespaceURI, qualifiedName) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.createAttributeNS = function(namespaceURI, qualifiedName) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.getElementsByTagNameNS = function(namespaceURI, localName) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.getElementById = function(elementId) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.adoptNode = function(source) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.normalizeDocument = function() {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.renameNode = function(node, namespaceURI, qualifiedName) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.getElementsByClassName = function(classNames) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.createEvent = function(eventInterface) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.createRange = function() {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.createNodeIterator = function(root, whatToShow, filter) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLDocument.prototype.createTreeWalker = function(root, whatToShow, filter) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    return XMLDocument;

  })(XMLNode);

}).call(this);

},{"./NodeType":353,"./Utility":354,"./XMLDOMConfiguration":360,"./XMLDOMImplementation":362,"./XMLNode":375,"./XMLStringWriter":380,"./XMLStringifier":381}],371:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var NodeType, WriterState, XMLAttribute, XMLCData, XMLComment, XMLDTDAttList, XMLDTDElement, XMLDTDEntity, XMLDTDNotation, XMLDeclaration, XMLDocType, XMLDocument, XMLDocumentCB, XMLElement, XMLProcessingInstruction, XMLRaw, XMLStringWriter, XMLStringifier, XMLText, getValue, isFunction, isObject, isPlainObject, ref,
    hasProp = {}.hasOwnProperty;

  ref = require('./Utility'), isObject = ref.isObject, isFunction = ref.isFunction, isPlainObject = ref.isPlainObject, getValue = ref.getValue;

  NodeType = require('./NodeType');

  XMLDocument = require('./XMLDocument');

  XMLElement = require('./XMLElement');

  XMLCData = require('./XMLCData');

  XMLComment = require('./XMLComment');

  XMLRaw = require('./XMLRaw');

  XMLText = require('./XMLText');

  XMLProcessingInstruction = require('./XMLProcessingInstruction');

  XMLDeclaration = require('./XMLDeclaration');

  XMLDocType = require('./XMLDocType');

  XMLDTDAttList = require('./XMLDTDAttList');

  XMLDTDEntity = require('./XMLDTDEntity');

  XMLDTDElement = require('./XMLDTDElement');

  XMLDTDNotation = require('./XMLDTDNotation');

  XMLAttribute = require('./XMLAttribute');

  XMLStringifier = require('./XMLStringifier');

  XMLStringWriter = require('./XMLStringWriter');

  WriterState = require('./WriterState');

  module.exports = XMLDocumentCB = (function() {
    function XMLDocumentCB(options, onData, onEnd) {
      var writerOptions;
      this.name = "?xml";
      this.type = NodeType.Document;
      options || (options = {});
      writerOptions = {};
      if (!options.writer) {
        options.writer = new XMLStringWriter();
      } else if (isPlainObject(options.writer)) {
        writerOptions = options.writer;
        options.writer = new XMLStringWriter();
      }
      this.options = options;
      this.writer = options.writer;
      this.writerOptions = this.writer.filterOptions(writerOptions);
      this.stringify = new XMLStringifier(options);
      this.onDataCallback = onData || function() {};
      this.onEndCallback = onEnd || function() {};
      this.currentNode = null;
      this.currentLevel = -1;
      this.openTags = {};
      this.documentStarted = false;
      this.documentCompleted = false;
      this.root = null;
    }

    XMLDocumentCB.prototype.createChildNode = function(node) {
      var att, attName, attributes, child, i, len, ref1, ref2;
      switch (node.type) {
        case NodeType.CData:
          this.cdata(node.value);
          break;
        case NodeType.Comment:
          this.comment(node.value);
          break;
        case NodeType.Element:
          attributes = {};
          ref1 = node.attribs;
          for (attName in ref1) {
            if (!hasProp.call(ref1, attName)) continue;
            att = ref1[attName];
            attributes[attName] = att.value;
          }
          this.node(node.name, attributes);
          break;
        case NodeType.Dummy:
          this.dummy();
          break;
        case NodeType.Raw:
          this.raw(node.value);
          break;
        case NodeType.Text:
          this.text(node.value);
          break;
        case NodeType.ProcessingInstruction:
          this.instruction(node.target, node.value);
          break;
        default:
          throw new Error("This XML node type is not supported in a JS object: " + node.constructor.name);
      }
      ref2 = node.children;
      for (i = 0, len = ref2.length; i < len; i++) {
        child = ref2[i];
        this.createChildNode(child);
        if (child.type === NodeType.Element) {
          this.up();
        }
      }
      return this;
    };

    XMLDocumentCB.prototype.dummy = function() {
      return this;
    };

    XMLDocumentCB.prototype.node = function(name, attributes, text) {
      var ref1;
      if (name == null) {
        throw new Error("Missing node name.");
      }
      if (this.root && this.currentLevel === -1) {
        throw new Error("Document can only have one root node. " + this.debugInfo(name));
      }
      this.openCurrent();
      name = getValue(name);
      if (attributes == null) {
        attributes = {};
      }
      attributes = getValue(attributes);
      if (!isObject(attributes)) {
        ref1 = [attributes, text], text = ref1[0], attributes = ref1[1];
      }
      this.currentNode = new XMLElement(this, name, attributes);
      this.currentNode.children = false;
      this.currentLevel++;
      this.openTags[this.currentLevel] = this.currentNode;
      if (text != null) {
        this.text(text);
      }
      return this;
    };

    XMLDocumentCB.prototype.element = function(name, attributes, text) {
      var child, i, len, oldValidationFlag, ref1, root;
      if (this.currentNode && this.currentNode.type === NodeType.DocType) {
        this.dtdElement.apply(this, arguments);
      } else {
        if (Array.isArray(name) || isObject(name) || isFunction(name)) {
          oldValidationFlag = this.options.noValidation;
          this.options.noValidation = true;
          root = new XMLDocument(this.options).element('TEMP_ROOT');
          root.element(name);
          this.options.noValidation = oldValidationFlag;
          ref1 = root.children;
          for (i = 0, len = ref1.length; i < len; i++) {
            child = ref1[i];
            this.createChildNode(child);
            if (child.type === NodeType.Element) {
              this.up();
            }
          }
        } else {
          this.node(name, attributes, text);
        }
      }
      return this;
    };

    XMLDocumentCB.prototype.attribute = function(name, value) {
      var attName, attValue;
      if (!this.currentNode || this.currentNode.children) {
        throw new Error("att() can only be used immediately after an ele() call in callback mode. " + this.debugInfo(name));
      }
      if (name != null) {
        name = getValue(name);
      }
      if (isObject(name)) {
        for (attName in name) {
          if (!hasProp.call(name, attName)) continue;
          attValue = name[attName];
          this.attribute(attName, attValue);
        }
      } else {
        if (isFunction(value)) {
          value = value.apply();
        }
        if (this.options.keepNullAttributes && (value == null)) {
          this.currentNode.attribs[name] = new XMLAttribute(this, name, "");
        } else if (value != null) {
          this.currentNode.attribs[name] = new XMLAttribute(this, name, value);
        }
      }
      return this;
    };

    XMLDocumentCB.prototype.text = function(value) {
      var node;
      this.openCurrent();
      node = new XMLText(this, value);
      this.onData(this.writer.text(node, this.writerOptions, this.currentLevel + 1), this.currentLevel + 1);
      return this;
    };

    XMLDocumentCB.prototype.cdata = function(value) {
      var node;
      this.openCurrent();
      node = new XMLCData(this, value);
      this.onData(this.writer.cdata(node, this.writerOptions, this.currentLevel + 1), this.currentLevel + 1);
      return this;
    };

    XMLDocumentCB.prototype.comment = function(value) {
      var node;
      this.openCurrent();
      node = new XMLComment(this, value);
      this.onData(this.writer.comment(node, this.writerOptions, this.currentLevel + 1), this.currentLevel + 1);
      return this;
    };

    XMLDocumentCB.prototype.raw = function(value) {
      var node;
      this.openCurrent();
      node = new XMLRaw(this, value);
      this.onData(this.writer.raw(node, this.writerOptions, this.currentLevel + 1), this.currentLevel + 1);
      return this;
    };

    XMLDocumentCB.prototype.instruction = function(target, value) {
      var i, insTarget, insValue, len, node;
      this.openCurrent();
      if (target != null) {
        target = getValue(target);
      }
      if (value != null) {
        value = getValue(value);
      }
      if (Array.isArray(target)) {
        for (i = 0, len = target.length; i < len; i++) {
          insTarget = target[i];
          this.instruction(insTarget);
        }
      } else if (isObject(target)) {
        for (insTarget in target) {
          if (!hasProp.call(target, insTarget)) continue;
          insValue = target[insTarget];
          this.instruction(insTarget, insValue);
        }
      } else {
        if (isFunction(value)) {
          value = value.apply();
        }
        node = new XMLProcessingInstruction(this, target, value);
        this.onData(this.writer.processingInstruction(node, this.writerOptions, this.currentLevel + 1), this.currentLevel + 1);
      }
      return this;
    };

    XMLDocumentCB.prototype.declaration = function(version, encoding, standalone) {
      var node;
      this.openCurrent();
      if (this.documentStarted) {
        throw new Error("declaration() must be the first node.");
      }
      node = new XMLDeclaration(this, version, encoding, standalone);
      this.onData(this.writer.declaration(node, this.writerOptions, this.currentLevel + 1), this.currentLevel + 1);
      return this;
    };

    XMLDocumentCB.prototype.doctype = function(root, pubID, sysID) {
      this.openCurrent();
      if (root == null) {
        throw new Error("Missing root node name.");
      }
      if (this.root) {
        throw new Error("dtd() must come before the root node.");
      }
      this.currentNode = new XMLDocType(this, pubID, sysID);
      this.currentNode.rootNodeName = root;
      this.currentNode.children = false;
      this.currentLevel++;
      this.openTags[this.currentLevel] = this.currentNode;
      return this;
    };

    XMLDocumentCB.prototype.dtdElement = function(name, value) {
      var node;
      this.openCurrent();
      node = new XMLDTDElement(this, name, value);
      this.onData(this.writer.dtdElement(node, this.writerOptions, this.currentLevel + 1), this.currentLevel + 1);
      return this;
    };

    XMLDocumentCB.prototype.attList = function(elementName, attributeName, attributeType, defaultValueType, defaultValue) {
      var node;
      this.openCurrent();
      node = new XMLDTDAttList(this, elementName, attributeName, attributeType, defaultValueType, defaultValue);
      this.onData(this.writer.dtdAttList(node, this.writerOptions, this.currentLevel + 1), this.currentLevel + 1);
      return this;
    };

    XMLDocumentCB.prototype.entity = function(name, value) {
      var node;
      this.openCurrent();
      node = new XMLDTDEntity(this, false, name, value);
      this.onData(this.writer.dtdEntity(node, this.writerOptions, this.currentLevel + 1), this.currentLevel + 1);
      return this;
    };

    XMLDocumentCB.prototype.pEntity = function(name, value) {
      var node;
      this.openCurrent();
      node = new XMLDTDEntity(this, true, name, value);
      this.onData(this.writer.dtdEntity(node, this.writerOptions, this.currentLevel + 1), this.currentLevel + 1);
      return this;
    };

    XMLDocumentCB.prototype.notation = function(name, value) {
      var node;
      this.openCurrent();
      node = new XMLDTDNotation(this, name, value);
      this.onData(this.writer.dtdNotation(node, this.writerOptions, this.currentLevel + 1), this.currentLevel + 1);
      return this;
    };

    XMLDocumentCB.prototype.up = function() {
      if (this.currentLevel < 0) {
        throw new Error("The document node has no parent.");
      }
      if (this.currentNode) {
        if (this.currentNode.children) {
          this.closeNode(this.currentNode);
        } else {
          this.openNode(this.currentNode);
        }
        this.currentNode = null;
      } else {
        this.closeNode(this.openTags[this.currentLevel]);
      }
      delete this.openTags[this.currentLevel];
      this.currentLevel--;
      return this;
    };

    XMLDocumentCB.prototype.end = function() {
      while (this.currentLevel >= 0) {
        this.up();
      }
      return this.onEnd();
    };

    XMLDocumentCB.prototype.openCurrent = function() {
      if (this.currentNode) {
        this.currentNode.children = true;
        return this.openNode(this.currentNode);
      }
    };

    XMLDocumentCB.prototype.openNode = function(node) {
      var att, chunk, name, ref1;
      if (!node.isOpen) {
        if (!this.root && this.currentLevel === 0 && node.type === NodeType.Element) {
          this.root = node;
        }
        chunk = '';
        if (node.type === NodeType.Element) {
          this.writerOptions.state = WriterState.OpenTag;
          chunk = this.writer.indent(node, this.writerOptions, this.currentLevel) + '<' + node.name;
          ref1 = node.attribs;
          for (name in ref1) {
            if (!hasProp.call(ref1, name)) continue;
            att = ref1[name];
            chunk += this.writer.attribute(att, this.writerOptions, this.currentLevel);
          }
          chunk += (node.children ? '>' : '/>') + this.writer.endline(node, this.writerOptions, this.currentLevel);
          this.writerOptions.state = WriterState.InsideTag;
        } else {
          this.writerOptions.state = WriterState.OpenTag;
          chunk = this.writer.indent(node, this.writerOptions, this.currentLevel) + '<!DOCTYPE ' + node.rootNodeName;
          if (node.pubID && node.sysID) {
            chunk += ' PUBLIC "' + node.pubID + '" "' + node.sysID + '"';
          } else if (node.sysID) {
            chunk += ' SYSTEM "' + node.sysID + '"';
          }
          if (node.children) {
            chunk += ' [';
            this.writerOptions.state = WriterState.InsideTag;
          } else {
            this.writerOptions.state = WriterState.CloseTag;
            chunk += '>';
          }
          chunk += this.writer.endline(node, this.writerOptions, this.currentLevel);
        }
        this.onData(chunk, this.currentLevel);
        return node.isOpen = true;
      }
    };

    XMLDocumentCB.prototype.closeNode = function(node) {
      var chunk;
      if (!node.isClosed) {
        chunk = '';
        this.writerOptions.state = WriterState.CloseTag;
        if (node.type === NodeType.Element) {
          chunk = this.writer.indent(node, this.writerOptions, this.currentLevel) + '</' + node.name + '>' + this.writer.endline(node, this.writerOptions, this.currentLevel);
        } else {
          chunk = this.writer.indent(node, this.writerOptions, this.currentLevel) + ']>' + this.writer.endline(node, this.writerOptions, this.currentLevel);
        }
        this.writerOptions.state = WriterState.None;
        this.onData(chunk, this.currentLevel);
        return node.isClosed = true;
      }
    };

    XMLDocumentCB.prototype.onData = function(chunk, level) {
      this.documentStarted = true;
      return this.onDataCallback(chunk, level + 1);
    };

    XMLDocumentCB.prototype.onEnd = function() {
      this.documentCompleted = true;
      return this.onEndCallback();
    };

    XMLDocumentCB.prototype.debugInfo = function(name) {
      if (name == null) {
        return "";
      } else {
        return "node: <" + name + ">";
      }
    };

    XMLDocumentCB.prototype.ele = function() {
      return this.element.apply(this, arguments);
    };

    XMLDocumentCB.prototype.nod = function(name, attributes, text) {
      return this.node(name, attributes, text);
    };

    XMLDocumentCB.prototype.txt = function(value) {
      return this.text(value);
    };

    XMLDocumentCB.prototype.dat = function(value) {
      return this.cdata(value);
    };

    XMLDocumentCB.prototype.com = function(value) {
      return this.comment(value);
    };

    XMLDocumentCB.prototype.ins = function(target, value) {
      return this.instruction(target, value);
    };

    XMLDocumentCB.prototype.dec = function(version, encoding, standalone) {
      return this.declaration(version, encoding, standalone);
    };

    XMLDocumentCB.prototype.dtd = function(root, pubID, sysID) {
      return this.doctype(root, pubID, sysID);
    };

    XMLDocumentCB.prototype.e = function(name, attributes, text) {
      return this.element(name, attributes, text);
    };

    XMLDocumentCB.prototype.n = function(name, attributes, text) {
      return this.node(name, attributes, text);
    };

    XMLDocumentCB.prototype.t = function(value) {
      return this.text(value);
    };

    XMLDocumentCB.prototype.d = function(value) {
      return this.cdata(value);
    };

    XMLDocumentCB.prototype.c = function(value) {
      return this.comment(value);
    };

    XMLDocumentCB.prototype.r = function(value) {
      return this.raw(value);
    };

    XMLDocumentCB.prototype.i = function(target, value) {
      return this.instruction(target, value);
    };

    XMLDocumentCB.prototype.att = function() {
      if (this.currentNode && this.currentNode.type === NodeType.DocType) {
        return this.attList.apply(this, arguments);
      } else {
        return this.attribute.apply(this, arguments);
      }
    };

    XMLDocumentCB.prototype.a = function() {
      if (this.currentNode && this.currentNode.type === NodeType.DocType) {
        return this.attList.apply(this, arguments);
      } else {
        return this.attribute.apply(this, arguments);
      }
    };

    XMLDocumentCB.prototype.ent = function(name, value) {
      return this.entity(name, value);
    };

    XMLDocumentCB.prototype.pent = function(name, value) {
      return this.pEntity(name, value);
    };

    XMLDocumentCB.prototype.not = function(name, value) {
      return this.notation(name, value);
    };

    return XMLDocumentCB;

  })();

}).call(this);

},{"./NodeType":353,"./Utility":354,"./WriterState":355,"./XMLAttribute":356,"./XMLCData":357,"./XMLComment":359,"./XMLDTDAttList":364,"./XMLDTDElement":365,"./XMLDTDEntity":366,"./XMLDTDNotation":367,"./XMLDeclaration":368,"./XMLDocType":369,"./XMLDocument":370,"./XMLElement":373,"./XMLProcessingInstruction":377,"./XMLRaw":378,"./XMLStringWriter":380,"./XMLStringifier":381,"./XMLText":382}],372:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var NodeType, XMLDummy, XMLNode,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  XMLNode = require('./XMLNode');

  NodeType = require('./NodeType');

  module.exports = XMLDummy = (function(superClass) {
    extend(XMLDummy, superClass);

    function XMLDummy(parent) {
      XMLDummy.__super__.constructor.call(this, parent);
      this.type = NodeType.Dummy;
    }

    XMLDummy.prototype.clone = function() {
      return Object.create(this);
    };

    XMLDummy.prototype.toString = function(options) {
      return '';
    };

    return XMLDummy;

  })(XMLNode);

}).call(this);

},{"./NodeType":353,"./XMLNode":375}],373:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var NodeType, XMLAttribute, XMLElement, XMLNamedNodeMap, XMLNode, getValue, isFunction, isObject, ref,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  ref = require('./Utility'), isObject = ref.isObject, isFunction = ref.isFunction, getValue = ref.getValue;

  XMLNode = require('./XMLNode');

  NodeType = require('./NodeType');

  XMLAttribute = require('./XMLAttribute');

  XMLNamedNodeMap = require('./XMLNamedNodeMap');

  module.exports = XMLElement = (function(superClass) {
    extend(XMLElement, superClass);

    function XMLElement(parent, name, attributes) {
      var child, j, len, ref1;
      XMLElement.__super__.constructor.call(this, parent);
      if (name == null) {
        throw new Error("Missing element name. " + this.debugInfo());
      }
      this.name = this.stringify.name(name);
      this.type = NodeType.Element;
      this.attribs = {};
      this.schemaTypeInfo = null;
      if (attributes != null) {
        this.attribute(attributes);
      }
      if (parent.type === NodeType.Document) {
        this.isRoot = true;
        this.documentObject = parent;
        parent.rootObject = this;
        if (parent.children) {
          ref1 = parent.children;
          for (j = 0, len = ref1.length; j < len; j++) {
            child = ref1[j];
            if (child.type === NodeType.DocType) {
              child.name = this.name;
              break;
            }
          }
        }
      }
    }

    Object.defineProperty(XMLElement.prototype, 'tagName', {
      get: function() {
        return this.name;
      }
    });

    Object.defineProperty(XMLElement.prototype, 'namespaceURI', {
      get: function() {
        return '';
      }
    });

    Object.defineProperty(XMLElement.prototype, 'prefix', {
      get: function() {
        return '';
      }
    });

    Object.defineProperty(XMLElement.prototype, 'localName', {
      get: function() {
        return this.name;
      }
    });

    Object.defineProperty(XMLElement.prototype, 'id', {
      get: function() {
        throw new Error("This DOM method is not implemented." + this.debugInfo());
      }
    });

    Object.defineProperty(XMLElement.prototype, 'className', {
      get: function() {
        throw new Error("This DOM method is not implemented." + this.debugInfo());
      }
    });

    Object.defineProperty(XMLElement.prototype, 'classList', {
      get: function() {
        throw new Error("This DOM method is not implemented." + this.debugInfo());
      }
    });

    Object.defineProperty(XMLElement.prototype, 'attributes', {
      get: function() {
        if (!this.attributeMap || !this.attributeMap.nodes) {
          this.attributeMap = new XMLNamedNodeMap(this.attribs);
        }
        return this.attributeMap;
      }
    });

    XMLElement.prototype.clone = function() {
      var att, attName, clonedSelf, ref1;
      clonedSelf = Object.create(this);
      if (clonedSelf.isRoot) {
        clonedSelf.documentObject = null;
      }
      clonedSelf.attribs = {};
      ref1 = this.attribs;
      for (attName in ref1) {
        if (!hasProp.call(ref1, attName)) continue;
        att = ref1[attName];
        clonedSelf.attribs[attName] = att.clone();
      }
      clonedSelf.children = [];
      this.children.forEach(function(child) {
        var clonedChild;
        clonedChild = child.clone();
        clonedChild.parent = clonedSelf;
        return clonedSelf.children.push(clonedChild);
      });
      return clonedSelf;
    };

    XMLElement.prototype.attribute = function(name, value) {
      var attName, attValue;
      if (name != null) {
        name = getValue(name);
      }
      if (isObject(name)) {
        for (attName in name) {
          if (!hasProp.call(name, attName)) continue;
          attValue = name[attName];
          this.attribute(attName, attValue);
        }
      } else {
        if (isFunction(value)) {
          value = value.apply();
        }
        if (this.options.keepNullAttributes && (value == null)) {
          this.attribs[name] = new XMLAttribute(this, name, "");
        } else if (value != null) {
          this.attribs[name] = new XMLAttribute(this, name, value);
        }
      }
      return this;
    };

    XMLElement.prototype.removeAttribute = function(name) {
      var attName, j, len;
      if (name == null) {
        throw new Error("Missing attribute name. " + this.debugInfo());
      }
      name = getValue(name);
      if (Array.isArray(name)) {
        for (j = 0, len = name.length; j < len; j++) {
          attName = name[j];
          delete this.attribs[attName];
        }
      } else {
        delete this.attribs[name];
      }
      return this;
    };

    XMLElement.prototype.toString = function(options) {
      return this.options.writer.element(this, this.options.writer.filterOptions(options));
    };

    XMLElement.prototype.att = function(name, value) {
      return this.attribute(name, value);
    };

    XMLElement.prototype.a = function(name, value) {
      return this.attribute(name, value);
    };

    XMLElement.prototype.getAttribute = function(name) {
      if (this.attribs.hasOwnProperty(name)) {
        return this.attribs[name].value;
      } else {
        return null;
      }
    };

    XMLElement.prototype.setAttribute = function(name, value) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLElement.prototype.getAttributeNode = function(name) {
      if (this.attribs.hasOwnProperty(name)) {
        return this.attribs[name];
      } else {
        return null;
      }
    };

    XMLElement.prototype.setAttributeNode = function(newAttr) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLElement.prototype.removeAttributeNode = function(oldAttr) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLElement.prototype.getElementsByTagName = function(name) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLElement.prototype.getAttributeNS = function(namespaceURI, localName) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLElement.prototype.setAttributeNS = function(namespaceURI, qualifiedName, value) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLElement.prototype.removeAttributeNS = function(namespaceURI, localName) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLElement.prototype.getAttributeNodeNS = function(namespaceURI, localName) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLElement.prototype.setAttributeNodeNS = function(newAttr) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLElement.prototype.getElementsByTagNameNS = function(namespaceURI, localName) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLElement.prototype.hasAttribute = function(name) {
      return this.attribs.hasOwnProperty(name);
    };

    XMLElement.prototype.hasAttributeNS = function(namespaceURI, localName) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLElement.prototype.setIdAttribute = function(name, isId) {
      if (this.attribs.hasOwnProperty(name)) {
        return this.attribs[name].isId;
      } else {
        return isId;
      }
    };

    XMLElement.prototype.setIdAttributeNS = function(namespaceURI, localName, isId) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLElement.prototype.setIdAttributeNode = function(idAttr, isId) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLElement.prototype.getElementsByTagName = function(tagname) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLElement.prototype.getElementsByTagNameNS = function(namespaceURI, localName) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLElement.prototype.getElementsByClassName = function(classNames) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLElement.prototype.isEqualNode = function(node) {
      var i, j, ref1;
      if (!XMLElement.__super__.isEqualNode.apply(this, arguments).isEqualNode(node)) {
        return false;
      }
      if (node.namespaceURI !== this.namespaceURI) {
        return false;
      }
      if (node.prefix !== this.prefix) {
        return false;
      }
      if (node.localName !== this.localName) {
        return false;
      }
      if (node.attribs.length !== this.attribs.length) {
        return false;
      }
      for (i = j = 0, ref1 = this.attribs.length - 1; 0 <= ref1 ? j <= ref1 : j >= ref1; i = 0 <= ref1 ? ++j : --j) {
        if (!this.attribs[i].isEqualNode(node.attribs[i])) {
          return false;
        }
      }
      return true;
    };

    return XMLElement;

  })(XMLNode);

}).call(this);

},{"./NodeType":353,"./Utility":354,"./XMLAttribute":356,"./XMLNamedNodeMap":374,"./XMLNode":375}],374:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var XMLNamedNodeMap;

  module.exports = XMLNamedNodeMap = (function() {
    function XMLNamedNodeMap(nodes) {
      this.nodes = nodes;
    }

    Object.defineProperty(XMLNamedNodeMap.prototype, 'length', {
      get: function() {
        return Object.keys(this.nodes).length || 0;
      }
    });

    XMLNamedNodeMap.prototype.clone = function() {
      return this.nodes = null;
    };

    XMLNamedNodeMap.prototype.getNamedItem = function(name) {
      return this.nodes[name];
    };

    XMLNamedNodeMap.prototype.setNamedItem = function(node) {
      var oldNode;
      oldNode = this.nodes[node.nodeName];
      this.nodes[node.nodeName] = node;
      return oldNode || null;
    };

    XMLNamedNodeMap.prototype.removeNamedItem = function(name) {
      var oldNode;
      oldNode = this.nodes[name];
      delete this.nodes[name];
      return oldNode || null;
    };

    XMLNamedNodeMap.prototype.item = function(index) {
      return this.nodes[Object.keys(this.nodes)[index]] || null;
    };

    XMLNamedNodeMap.prototype.getNamedItemNS = function(namespaceURI, localName) {
      throw new Error("This DOM method is not implemented.");
    };

    XMLNamedNodeMap.prototype.setNamedItemNS = function(node) {
      throw new Error("This DOM method is not implemented.");
    };

    XMLNamedNodeMap.prototype.removeNamedItemNS = function(namespaceURI, localName) {
      throw new Error("This DOM method is not implemented.");
    };

    return XMLNamedNodeMap;

  })();

}).call(this);

},{}],375:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var DocumentPosition, NodeType, XMLCData, XMLComment, XMLDeclaration, XMLDocType, XMLDummy, XMLElement, XMLNamedNodeMap, XMLNode, XMLNodeList, XMLProcessingInstruction, XMLRaw, XMLText, getValue, isEmpty, isFunction, isObject, ref1,
    hasProp = {}.hasOwnProperty;

  ref1 = require('./Utility'), isObject = ref1.isObject, isFunction = ref1.isFunction, isEmpty = ref1.isEmpty, getValue = ref1.getValue;

  XMLElement = null;

  XMLCData = null;

  XMLComment = null;

  XMLDeclaration = null;

  XMLDocType = null;

  XMLRaw = null;

  XMLText = null;

  XMLProcessingInstruction = null;

  XMLDummy = null;

  NodeType = null;

  XMLNodeList = null;

  XMLNamedNodeMap = null;

  DocumentPosition = null;

  module.exports = XMLNode = (function() {
    function XMLNode(parent1) {
      this.parent = parent1;
      if (this.parent) {
        this.options = this.parent.options;
        this.stringify = this.parent.stringify;
      }
      this.value = null;
      this.children = [];
      this.baseURI = null;
      if (!XMLElement) {
        XMLElement = require('./XMLElement');
        XMLCData = require('./XMLCData');
        XMLComment = require('./XMLComment');
        XMLDeclaration = require('./XMLDeclaration');
        XMLDocType = require('./XMLDocType');
        XMLRaw = require('./XMLRaw');
        XMLText = require('./XMLText');
        XMLProcessingInstruction = require('./XMLProcessingInstruction');
        XMLDummy = require('./XMLDummy');
        NodeType = require('./NodeType');
        XMLNodeList = require('./XMLNodeList');
        XMLNamedNodeMap = require('./XMLNamedNodeMap');
        DocumentPosition = require('./DocumentPosition');
      }
    }

    Object.defineProperty(XMLNode.prototype, 'nodeName', {
      get: function() {
        return this.name;
      }
    });

    Object.defineProperty(XMLNode.prototype, 'nodeType', {
      get: function() {
        return this.type;
      }
    });

    Object.defineProperty(XMLNode.prototype, 'nodeValue', {
      get: function() {
        return this.value;
      }
    });

    Object.defineProperty(XMLNode.prototype, 'parentNode', {
      get: function() {
        return this.parent;
      }
    });

    Object.defineProperty(XMLNode.prototype, 'childNodes', {
      get: function() {
        if (!this.childNodeList || !this.childNodeList.nodes) {
          this.childNodeList = new XMLNodeList(this.children);
        }
        return this.childNodeList;
      }
    });

    Object.defineProperty(XMLNode.prototype, 'firstChild', {
      get: function() {
        return this.children[0] || null;
      }
    });

    Object.defineProperty(XMLNode.prototype, 'lastChild', {
      get: function() {
        return this.children[this.children.length - 1] || null;
      }
    });

    Object.defineProperty(XMLNode.prototype, 'previousSibling', {
      get: function() {
        var i;
        i = this.parent.children.indexOf(this);
        return this.parent.children[i - 1] || null;
      }
    });

    Object.defineProperty(XMLNode.prototype, 'nextSibling', {
      get: function() {
        var i;
        i = this.parent.children.indexOf(this);
        return this.parent.children[i + 1] || null;
      }
    });

    Object.defineProperty(XMLNode.prototype, 'ownerDocument', {
      get: function() {
        return this.document() || null;
      }
    });

    Object.defineProperty(XMLNode.prototype, 'textContent', {
      get: function() {
        var child, j, len, ref2, str;
        if (this.nodeType === NodeType.Element || this.nodeType === NodeType.DocumentFragment) {
          str = '';
          ref2 = this.children;
          for (j = 0, len = ref2.length; j < len; j++) {
            child = ref2[j];
            if (child.textContent) {
              str += child.textContent;
            }
          }
          return str;
        } else {
          return null;
        }
      },
      set: function(value) {
        throw new Error("This DOM method is not implemented." + this.debugInfo());
      }
    });

    XMLNode.prototype.setParent = function(parent) {
      var child, j, len, ref2, results;
      this.parent = parent;
      if (parent) {
        this.options = parent.options;
        this.stringify = parent.stringify;
      }
      ref2 = this.children;
      results = [];
      for (j = 0, len = ref2.length; j < len; j++) {
        child = ref2[j];
        results.push(child.setParent(this));
      }
      return results;
    };

    XMLNode.prototype.element = function(name, attributes, text) {
      var childNode, item, j, k, key, lastChild, len, len1, ref2, ref3, val;
      lastChild = null;
      if (attributes === null && (text == null)) {
        ref2 = [{}, null], attributes = ref2[0], text = ref2[1];
      }
      if (attributes == null) {
        attributes = {};
      }
      attributes = getValue(attributes);
      if (!isObject(attributes)) {
        ref3 = [attributes, text], text = ref3[0], attributes = ref3[1];
      }
      if (name != null) {
        name = getValue(name);
      }
      if (Array.isArray(name)) {
        for (j = 0, len = name.length; j < len; j++) {
          item = name[j];
          lastChild = this.element(item);
        }
      } else if (isFunction(name)) {
        lastChild = this.element(name.apply());
      } else if (isObject(name)) {
        for (key in name) {
          if (!hasProp.call(name, key)) continue;
          val = name[key];
          if (isFunction(val)) {
            val = val.apply();
          }
          if (!this.options.ignoreDecorators && this.stringify.convertAttKey && key.indexOf(this.stringify.convertAttKey) === 0) {
            lastChild = this.attribute(key.substr(this.stringify.convertAttKey.length), val);
          } else if (!this.options.separateArrayItems && Array.isArray(val) && isEmpty(val)) {
            lastChild = this.dummy();
          } else if (isObject(val) && isEmpty(val)) {
            lastChild = this.element(key);
          } else if (!this.options.keepNullNodes && (val == null)) {
            lastChild = this.dummy();
          } else if (!this.options.separateArrayItems && Array.isArray(val)) {
            for (k = 0, len1 = val.length; k < len1; k++) {
              item = val[k];
              childNode = {};
              childNode[key] = item;
              lastChild = this.element(childNode);
            }
          } else if (isObject(val)) {
            if (!this.options.ignoreDecorators && this.stringify.convertTextKey && key.indexOf(this.stringify.convertTextKey) === 0) {
              lastChild = this.element(val);
            } else {
              lastChild = this.element(key);
              lastChild.element(val);
            }
          } else {
            lastChild = this.element(key, val);
          }
        }
      } else if (!this.options.keepNullNodes && text === null) {
        lastChild = this.dummy();
      } else {
        if (!this.options.ignoreDecorators && this.stringify.convertTextKey && name.indexOf(this.stringify.convertTextKey) === 0) {
          lastChild = this.text(text);
        } else if (!this.options.ignoreDecorators && this.stringify.convertCDataKey && name.indexOf(this.stringify.convertCDataKey) === 0) {
          lastChild = this.cdata(text);
        } else if (!this.options.ignoreDecorators && this.stringify.convertCommentKey && name.indexOf(this.stringify.convertCommentKey) === 0) {
          lastChild = this.comment(text);
        } else if (!this.options.ignoreDecorators && this.stringify.convertRawKey && name.indexOf(this.stringify.convertRawKey) === 0) {
          lastChild = this.raw(text);
        } else if (!this.options.ignoreDecorators && this.stringify.convertPIKey && name.indexOf(this.stringify.convertPIKey) === 0) {
          lastChild = this.instruction(name.substr(this.stringify.convertPIKey.length), text);
        } else {
          lastChild = this.node(name, attributes, text);
        }
      }
      if (lastChild == null) {
        throw new Error("Could not create any elements with: " + name + ". " + this.debugInfo());
      }
      return lastChild;
    };

    XMLNode.prototype.insertBefore = function(name, attributes, text) {
      var child, i, newChild, refChild, removed;
      if (name != null ? name.type : void 0) {
        newChild = name;
        refChild = attributes;
        newChild.setParent(this);
        if (refChild) {
          i = children.indexOf(refChild);
          removed = children.splice(i);
          children.push(newChild);
          Array.prototype.push.apply(children, removed);
        } else {
          children.push(newChild);
        }
        return newChild;
      } else {
        if (this.isRoot) {
          throw new Error("Cannot insert elements at root level. " + this.debugInfo(name));
        }
        i = this.parent.children.indexOf(this);
        removed = this.parent.children.splice(i);
        child = this.parent.element(name, attributes, text);
        Array.prototype.push.apply(this.parent.children, removed);
        return child;
      }
    };

    XMLNode.prototype.insertAfter = function(name, attributes, text) {
      var child, i, removed;
      if (this.isRoot) {
        throw new Error("Cannot insert elements at root level. " + this.debugInfo(name));
      }
      i = this.parent.children.indexOf(this);
      removed = this.parent.children.splice(i + 1);
      child = this.parent.element(name, attributes, text);
      Array.prototype.push.apply(this.parent.children, removed);
      return child;
    };

    XMLNode.prototype.remove = function() {
      var i, ref2;
      if (this.isRoot) {
        throw new Error("Cannot remove the root element. " + this.debugInfo());
      }
      i = this.parent.children.indexOf(this);
      [].splice.apply(this.parent.children, [i, i - i + 1].concat(ref2 = [])), ref2;
      return this.parent;
    };

    XMLNode.prototype.node = function(name, attributes, text) {
      var child, ref2;
      if (name != null) {
        name = getValue(name);
      }
      attributes || (attributes = {});
      attributes = getValue(attributes);
      if (!isObject(attributes)) {
        ref2 = [attributes, text], text = ref2[0], attributes = ref2[1];
      }
      child = new XMLElement(this, name, attributes);
      if (text != null) {
        child.text(text);
      }
      this.children.push(child);
      return child;
    };

    XMLNode.prototype.text = function(value) {
      var child;
      if (isObject(value)) {
        this.element(value);
      }
      child = new XMLText(this, value);
      this.children.push(child);
      return this;
    };

    XMLNode.prototype.cdata = function(value) {
      var child;
      child = new XMLCData(this, value);
      this.children.push(child);
      return this;
    };

    XMLNode.prototype.comment = function(value) {
      var child;
      child = new XMLComment(this, value);
      this.children.push(child);
      return this;
    };

    XMLNode.prototype.commentBefore = function(value) {
      var child, i, removed;
      i = this.parent.children.indexOf(this);
      removed = this.parent.children.splice(i);
      child = this.parent.comment(value);
      Array.prototype.push.apply(this.parent.children, removed);
      return this;
    };

    XMLNode.prototype.commentAfter = function(value) {
      var child, i, removed;
      i = this.parent.children.indexOf(this);
      removed = this.parent.children.splice(i + 1);
      child = this.parent.comment(value);
      Array.prototype.push.apply(this.parent.children, removed);
      return this;
    };

    XMLNode.prototype.raw = function(value) {
      var child;
      child = new XMLRaw(this, value);
      this.children.push(child);
      return this;
    };

    XMLNode.prototype.dummy = function() {
      var child;
      child = new XMLDummy(this);
      return child;
    };

    XMLNode.prototype.instruction = function(target, value) {
      var insTarget, insValue, instruction, j, len;
      if (target != null) {
        target = getValue(target);
      }
      if (value != null) {
        value = getValue(value);
      }
      if (Array.isArray(target)) {
        for (j = 0, len = target.length; j < len; j++) {
          insTarget = target[j];
          this.instruction(insTarget);
        }
      } else if (isObject(target)) {
        for (insTarget in target) {
          if (!hasProp.call(target, insTarget)) continue;
          insValue = target[insTarget];
          this.instruction(insTarget, insValue);
        }
      } else {
        if (isFunction(value)) {
          value = value.apply();
        }
        instruction = new XMLProcessingInstruction(this, target, value);
        this.children.push(instruction);
      }
      return this;
    };

    XMLNode.prototype.instructionBefore = function(target, value) {
      var child, i, removed;
      i = this.parent.children.indexOf(this);
      removed = this.parent.children.splice(i);
      child = this.parent.instruction(target, value);
      Array.prototype.push.apply(this.parent.children, removed);
      return this;
    };

    XMLNode.prototype.instructionAfter = function(target, value) {
      var child, i, removed;
      i = this.parent.children.indexOf(this);
      removed = this.parent.children.splice(i + 1);
      child = this.parent.instruction(target, value);
      Array.prototype.push.apply(this.parent.children, removed);
      return this;
    };

    XMLNode.prototype.declaration = function(version, encoding, standalone) {
      var doc, xmldec;
      doc = this.document();
      xmldec = new XMLDeclaration(doc, version, encoding, standalone);
      if (doc.children.length === 0) {
        doc.children.unshift(xmldec);
      } else if (doc.children[0].type === NodeType.Declaration) {
        doc.children[0] = xmldec;
      } else {
        doc.children.unshift(xmldec);
      }
      return doc.root() || doc;
    };

    XMLNode.prototype.dtd = function(pubID, sysID) {
      var child, doc, doctype, i, j, k, len, len1, ref2, ref3;
      doc = this.document();
      doctype = new XMLDocType(doc, pubID, sysID);
      ref2 = doc.children;
      for (i = j = 0, len = ref2.length; j < len; i = ++j) {
        child = ref2[i];
        if (child.type === NodeType.DocType) {
          doc.children[i] = doctype;
          return doctype;
        }
      }
      ref3 = doc.children;
      for (i = k = 0, len1 = ref3.length; k < len1; i = ++k) {
        child = ref3[i];
        if (child.isRoot) {
          doc.children.splice(i, 0, doctype);
          return doctype;
        }
      }
      doc.children.push(doctype);
      return doctype;
    };

    XMLNode.prototype.up = function() {
      if (this.isRoot) {
        throw new Error("The root node has no parent. Use doc() if you need to get the document object.");
      }
      return this.parent;
    };

    XMLNode.prototype.root = function() {
      var node;
      node = this;
      while (node) {
        if (node.type === NodeType.Document) {
          return node.rootObject;
        } else if (node.isRoot) {
          return node;
        } else {
          node = node.parent;
        }
      }
    };

    XMLNode.prototype.document = function() {
      var node;
      node = this;
      while (node) {
        if (node.type === NodeType.Document) {
          return node;
        } else {
          node = node.parent;
        }
      }
    };

    XMLNode.prototype.end = function(options) {
      return this.document().end(options);
    };

    XMLNode.prototype.prev = function() {
      var i;
      i = this.parent.children.indexOf(this);
      if (i < 1) {
        throw new Error("Already at the first node. " + this.debugInfo());
      }
      return this.parent.children[i - 1];
    };

    XMLNode.prototype.next = function() {
      var i;
      i = this.parent.children.indexOf(this);
      if (i === -1 || i === this.parent.children.length - 1) {
        throw new Error("Already at the last node. " + this.debugInfo());
      }
      return this.parent.children[i + 1];
    };

    XMLNode.prototype.importDocument = function(doc) {
      var clonedRoot;
      clonedRoot = doc.root().clone();
      clonedRoot.parent = this;
      clonedRoot.isRoot = false;
      this.children.push(clonedRoot);
      return this;
    };

    XMLNode.prototype.debugInfo = function(name) {
      var ref2, ref3;
      name = name || this.name;
      if ((name == null) && !((ref2 = this.parent) != null ? ref2.name : void 0)) {
        return "";
      } else if (name == null) {
        return "parent: <" + this.parent.name + ">";
      } else if (!((ref3 = this.parent) != null ? ref3.name : void 0)) {
        return "node: <" + name + ">";
      } else {
        return "node: <" + name + ">, parent: <" + this.parent.name + ">";
      }
    };

    XMLNode.prototype.ele = function(name, attributes, text) {
      return this.element(name, attributes, text);
    };

    XMLNode.prototype.nod = function(name, attributes, text) {
      return this.node(name, attributes, text);
    };

    XMLNode.prototype.txt = function(value) {
      return this.text(value);
    };

    XMLNode.prototype.dat = function(value) {
      return this.cdata(value);
    };

    XMLNode.prototype.com = function(value) {
      return this.comment(value);
    };

    XMLNode.prototype.ins = function(target, value) {
      return this.instruction(target, value);
    };

    XMLNode.prototype.doc = function() {
      return this.document();
    };

    XMLNode.prototype.dec = function(version, encoding, standalone) {
      return this.declaration(version, encoding, standalone);
    };

    XMLNode.prototype.e = function(name, attributes, text) {
      return this.element(name, attributes, text);
    };

    XMLNode.prototype.n = function(name, attributes, text) {
      return this.node(name, attributes, text);
    };

    XMLNode.prototype.t = function(value) {
      return this.text(value);
    };

    XMLNode.prototype.d = function(value) {
      return this.cdata(value);
    };

    XMLNode.prototype.c = function(value) {
      return this.comment(value);
    };

    XMLNode.prototype.r = function(value) {
      return this.raw(value);
    };

    XMLNode.prototype.i = function(target, value) {
      return this.instruction(target, value);
    };

    XMLNode.prototype.u = function() {
      return this.up();
    };

    XMLNode.prototype.importXMLBuilder = function(doc) {
      return this.importDocument(doc);
    };

    XMLNode.prototype.replaceChild = function(newChild, oldChild) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLNode.prototype.removeChild = function(oldChild) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLNode.prototype.appendChild = function(newChild) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLNode.prototype.hasChildNodes = function() {
      return this.children.length !== 0;
    };

    XMLNode.prototype.cloneNode = function(deep) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLNode.prototype.normalize = function() {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLNode.prototype.isSupported = function(feature, version) {
      return true;
    };

    XMLNode.prototype.hasAttributes = function() {
      return this.attribs.length !== 0;
    };

    XMLNode.prototype.compareDocumentPosition = function(other) {
      var ref, res;
      ref = this;
      if (ref === other) {
        return 0;
      } else if (this.document() !== other.document()) {
        res = DocumentPosition.Disconnected | DocumentPosition.ImplementationSpecific;
        if (Math.random() < 0.5) {
          res |= DocumentPosition.Preceding;
        } else {
          res |= DocumentPosition.Following;
        }
        return res;
      } else if (ref.isAncestor(other)) {
        return DocumentPosition.Contains | DocumentPosition.Preceding;
      } else if (ref.isDescendant(other)) {
        return DocumentPosition.Contains | DocumentPosition.Following;
      } else if (ref.isPreceding(other)) {
        return DocumentPosition.Preceding;
      } else {
        return DocumentPosition.Following;
      }
    };

    XMLNode.prototype.isSameNode = function(other) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLNode.prototype.lookupPrefix = function(namespaceURI) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLNode.prototype.isDefaultNamespace = function(namespaceURI) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLNode.prototype.lookupNamespaceURI = function(prefix) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLNode.prototype.isEqualNode = function(node) {
      var i, j, ref2;
      if (node.nodeType !== this.nodeType) {
        return false;
      }
      if (node.children.length !== this.children.length) {
        return false;
      }
      for (i = j = 0, ref2 = this.children.length - 1; 0 <= ref2 ? j <= ref2 : j >= ref2; i = 0 <= ref2 ? ++j : --j) {
        if (!this.children[i].isEqualNode(node.children[i])) {
          return false;
        }
      }
      return true;
    };

    XMLNode.prototype.getFeature = function(feature, version) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLNode.prototype.setUserData = function(key, data, handler) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLNode.prototype.getUserData = function(key) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLNode.prototype.contains = function(other) {
      if (!other) {
        return false;
      }
      return other === this || this.isDescendant(other);
    };

    XMLNode.prototype.isDescendant = function(node) {
      var child, isDescendantChild, j, len, ref2;
      ref2 = this.children;
      for (j = 0, len = ref2.length; j < len; j++) {
        child = ref2[j];
        if (node === child) {
          return true;
        }
        isDescendantChild = child.isDescendant(node);
        if (isDescendantChild) {
          return true;
        }
      }
      return false;
    };

    XMLNode.prototype.isAncestor = function(node) {
      return node.isDescendant(this);
    };

    XMLNode.prototype.isPreceding = function(node) {
      var nodePos, thisPos;
      nodePos = this.treePosition(node);
      thisPos = this.treePosition(this);
      if (nodePos === -1 || thisPos === -1) {
        return false;
      } else {
        return nodePos < thisPos;
      }
    };

    XMLNode.prototype.isFollowing = function(node) {
      var nodePos, thisPos;
      nodePos = this.treePosition(node);
      thisPos = this.treePosition(this);
      if (nodePos === -1 || thisPos === -1) {
        return false;
      } else {
        return nodePos > thisPos;
      }
    };

    XMLNode.prototype.treePosition = function(node) {
      var found, pos;
      pos = 0;
      found = false;
      this.foreachTreeNode(this.document(), function(childNode) {
        pos++;
        if (!found && childNode === node) {
          return found = true;
        }
      });
      if (found) {
        return pos;
      } else {
        return -1;
      }
    };

    XMLNode.prototype.foreachTreeNode = function(node, func) {
      var child, j, len, ref2, res;
      node || (node = this.document());
      ref2 = node.children;
      for (j = 0, len = ref2.length; j < len; j++) {
        child = ref2[j];
        if (res = func(child)) {
          return res;
        } else {
          res = this.foreachTreeNode(child, func);
          if (res) {
            return res;
          }
        }
      }
    };

    return XMLNode;

  })();

}).call(this);

},{"./DocumentPosition":352,"./NodeType":353,"./Utility":354,"./XMLCData":357,"./XMLComment":359,"./XMLDeclaration":368,"./XMLDocType":369,"./XMLDummy":372,"./XMLElement":373,"./XMLNamedNodeMap":374,"./XMLNodeList":376,"./XMLProcessingInstruction":377,"./XMLRaw":378,"./XMLText":382}],376:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var XMLNodeList;

  module.exports = XMLNodeList = (function() {
    function XMLNodeList(nodes) {
      this.nodes = nodes;
    }

    Object.defineProperty(XMLNodeList.prototype, 'length', {
      get: function() {
        return this.nodes.length || 0;
      }
    });

    XMLNodeList.prototype.clone = function() {
      return this.nodes = null;
    };

    XMLNodeList.prototype.item = function(index) {
      return this.nodes[index] || null;
    };

    return XMLNodeList;

  })();

}).call(this);

},{}],377:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var NodeType, XMLCharacterData, XMLProcessingInstruction,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  NodeType = require('./NodeType');

  XMLCharacterData = require('./XMLCharacterData');

  module.exports = XMLProcessingInstruction = (function(superClass) {
    extend(XMLProcessingInstruction, superClass);

    function XMLProcessingInstruction(parent, target, value) {
      XMLProcessingInstruction.__super__.constructor.call(this, parent);
      if (target == null) {
        throw new Error("Missing instruction target. " + this.debugInfo());
      }
      this.type = NodeType.ProcessingInstruction;
      this.target = this.stringify.insTarget(target);
      this.name = this.target;
      if (value) {
        this.value = this.stringify.insValue(value);
      }
    }

    XMLProcessingInstruction.prototype.clone = function() {
      return Object.create(this);
    };

    XMLProcessingInstruction.prototype.toString = function(options) {
      return this.options.writer.processingInstruction(this, this.options.writer.filterOptions(options));
    };

    XMLProcessingInstruction.prototype.isEqualNode = function(node) {
      if (!XMLProcessingInstruction.__super__.isEqualNode.apply(this, arguments).isEqualNode(node)) {
        return false;
      }
      if (node.target !== this.target) {
        return false;
      }
      return true;
    };

    return XMLProcessingInstruction;

  })(XMLCharacterData);

}).call(this);

},{"./NodeType":353,"./XMLCharacterData":358}],378:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var NodeType, XMLNode, XMLRaw,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  NodeType = require('./NodeType');

  XMLNode = require('./XMLNode');

  module.exports = XMLRaw = (function(superClass) {
    extend(XMLRaw, superClass);

    function XMLRaw(parent, text) {
      XMLRaw.__super__.constructor.call(this, parent);
      if (text == null) {
        throw new Error("Missing raw text. " + this.debugInfo());
      }
      this.type = NodeType.Raw;
      this.value = this.stringify.raw(text);
    }

    XMLRaw.prototype.clone = function() {
      return Object.create(this);
    };

    XMLRaw.prototype.toString = function(options) {
      return this.options.writer.raw(this, this.options.writer.filterOptions(options));
    };

    return XMLRaw;

  })(XMLNode);

}).call(this);

},{"./NodeType":353,"./XMLNode":375}],379:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var NodeType, WriterState, XMLStreamWriter, XMLWriterBase,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  NodeType = require('./NodeType');

  XMLWriterBase = require('./XMLWriterBase');

  WriterState = require('./WriterState');

  module.exports = XMLStreamWriter = (function(superClass) {
    extend(XMLStreamWriter, superClass);

    function XMLStreamWriter(stream, options) {
      this.stream = stream;
      XMLStreamWriter.__super__.constructor.call(this, options);
    }

    XMLStreamWriter.prototype.endline = function(node, options, level) {
      if (node.isLastRootNode && options.state === WriterState.CloseTag) {
        return '';
      } else {
        return XMLStreamWriter.__super__.endline.call(this, node, options, level);
      }
    };

    XMLStreamWriter.prototype.document = function(doc, options) {
      var child, i, j, k, len, len1, ref, ref1, results;
      ref = doc.children;
      for (i = j = 0, len = ref.length; j < len; i = ++j) {
        child = ref[i];
        child.isLastRootNode = i === doc.children.length - 1;
      }
      options = this.filterOptions(options);
      ref1 = doc.children;
      results = [];
      for (k = 0, len1 = ref1.length; k < len1; k++) {
        child = ref1[k];
        results.push(this.writeChildNode(child, options, 0));
      }
      return results;
    };

    XMLStreamWriter.prototype.attribute = function(att, options, level) {
      return this.stream.write(XMLStreamWriter.__super__.attribute.call(this, att, options, level));
    };

    XMLStreamWriter.prototype.cdata = function(node, options, level) {
      return this.stream.write(XMLStreamWriter.__super__.cdata.call(this, node, options, level));
    };

    XMLStreamWriter.prototype.comment = function(node, options, level) {
      return this.stream.write(XMLStreamWriter.__super__.comment.call(this, node, options, level));
    };

    XMLStreamWriter.prototype.declaration = function(node, options, level) {
      return this.stream.write(XMLStreamWriter.__super__.declaration.call(this, node, options, level));
    };

    XMLStreamWriter.prototype.docType = function(node, options, level) {
      var child, j, len, ref;
      level || (level = 0);
      this.openNode(node, options, level);
      options.state = WriterState.OpenTag;
      this.stream.write(this.indent(node, options, level));
      this.stream.write('<!DOCTYPE ' + node.root().name);
      if (node.pubID && node.sysID) {
        this.stream.write(' PUBLIC "' + node.pubID + '" "' + node.sysID + '"');
      } else if (node.sysID) {
        this.stream.write(' SYSTEM "' + node.sysID + '"');
      }
      if (node.children.length > 0) {
        this.stream.write(' [');
        this.stream.write(this.endline(node, options, level));
        options.state = WriterState.InsideTag;
        ref = node.children;
        for (j = 0, len = ref.length; j < len; j++) {
          child = ref[j];
          this.writeChildNode(child, options, level + 1);
        }
        options.state = WriterState.CloseTag;
        this.stream.write(']');
      }
      options.state = WriterState.CloseTag;
      this.stream.write(options.spaceBeforeSlash + '>');
      this.stream.write(this.endline(node, options, level));
      options.state = WriterState.None;
      return this.closeNode(node, options, level);
    };

    XMLStreamWriter.prototype.element = function(node, options, level) {
      var att, child, childNodeCount, firstChildNode, j, len, name, prettySuppressed, ref, ref1;
      level || (level = 0);
      this.openNode(node, options, level);
      options.state = WriterState.OpenTag;
      this.stream.write(this.indent(node, options, level) + '<' + node.name);
      ref = node.attribs;
      for (name in ref) {
        if (!hasProp.call(ref, name)) continue;
        att = ref[name];
        this.attribute(att, options, level);
      }
      childNodeCount = node.children.length;
      firstChildNode = childNodeCount === 0 ? null : node.children[0];
      if (childNodeCount === 0 || node.children.every(function(e) {
        return (e.type === NodeType.Text || e.type === NodeType.Raw) && e.value === '';
      })) {
        if (options.allowEmpty) {
          this.stream.write('>');
          options.state = WriterState.CloseTag;
          this.stream.write('</' + node.name + '>');
        } else {
          options.state = WriterState.CloseTag;
          this.stream.write(options.spaceBeforeSlash + '/>');
        }
      } else if (options.pretty && childNodeCount === 1 && (firstChildNode.type === NodeType.Text || firstChildNode.type === NodeType.Raw) && (firstChildNode.value != null)) {
        this.stream.write('>');
        options.state = WriterState.InsideTag;
        options.suppressPrettyCount++;
        prettySuppressed = true;
        this.writeChildNode(firstChildNode, options, level + 1);
        options.suppressPrettyCount--;
        prettySuppressed = false;
        options.state = WriterState.CloseTag;
        this.stream.write('</' + node.name + '>');
      } else {
        this.stream.write('>' + this.endline(node, options, level));
        options.state = WriterState.InsideTag;
        ref1 = node.children;
        for (j = 0, len = ref1.length; j < len; j++) {
          child = ref1[j];
          this.writeChildNode(child, options, level + 1);
        }
        options.state = WriterState.CloseTag;
        this.stream.write(this.indent(node, options, level) + '</' + node.name + '>');
      }
      this.stream.write(this.endline(node, options, level));
      options.state = WriterState.None;
      return this.closeNode(node, options, level);
    };

    XMLStreamWriter.prototype.processingInstruction = function(node, options, level) {
      return this.stream.write(XMLStreamWriter.__super__.processingInstruction.call(this, node, options, level));
    };

    XMLStreamWriter.prototype.raw = function(node, options, level) {
      return this.stream.write(XMLStreamWriter.__super__.raw.call(this, node, options, level));
    };

    XMLStreamWriter.prototype.text = function(node, options, level) {
      return this.stream.write(XMLStreamWriter.__super__.text.call(this, node, options, level));
    };

    XMLStreamWriter.prototype.dtdAttList = function(node, options, level) {
      return this.stream.write(XMLStreamWriter.__super__.dtdAttList.call(this, node, options, level));
    };

    XMLStreamWriter.prototype.dtdElement = function(node, options, level) {
      return this.stream.write(XMLStreamWriter.__super__.dtdElement.call(this, node, options, level));
    };

    XMLStreamWriter.prototype.dtdEntity = function(node, options, level) {
      return this.stream.write(XMLStreamWriter.__super__.dtdEntity.call(this, node, options, level));
    };

    XMLStreamWriter.prototype.dtdNotation = function(node, options, level) {
      return this.stream.write(XMLStreamWriter.__super__.dtdNotation.call(this, node, options, level));
    };

    return XMLStreamWriter;

  })(XMLWriterBase);

}).call(this);

},{"./NodeType":353,"./WriterState":355,"./XMLWriterBase":383}],380:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var XMLStringWriter, XMLWriterBase,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  XMLWriterBase = require('./XMLWriterBase');

  module.exports = XMLStringWriter = (function(superClass) {
    extend(XMLStringWriter, superClass);

    function XMLStringWriter(options) {
      XMLStringWriter.__super__.constructor.call(this, options);
    }

    XMLStringWriter.prototype.document = function(doc, options) {
      var child, i, len, r, ref;
      options = this.filterOptions(options);
      r = '';
      ref = doc.children;
      for (i = 0, len = ref.length; i < len; i++) {
        child = ref[i];
        r += this.writeChildNode(child, options, 0);
      }
      if (options.pretty && r.slice(-options.newline.length) === options.newline) {
        r = r.slice(0, -options.newline.length);
      }
      return r;
    };

    return XMLStringWriter;

  })(XMLWriterBase);

}).call(this);

},{"./XMLWriterBase":383}],381:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var XMLStringifier,
    bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; },
    hasProp = {}.hasOwnProperty;

  module.exports = XMLStringifier = (function() {
    function XMLStringifier(options) {
      this.assertLegalName = bind(this.assertLegalName, this);
      this.assertLegalChar = bind(this.assertLegalChar, this);
      var key, ref, value;
      options || (options = {});
      this.options = options;
      if (!this.options.version) {
        this.options.version = '1.0';
      }
      ref = options.stringify || {};
      for (key in ref) {
        if (!hasProp.call(ref, key)) continue;
        value = ref[key];
        this[key] = value;
      }
    }

    XMLStringifier.prototype.name = function(val) {
      if (this.options.noValidation) {
        return val;
      }
      return this.assertLegalName('' + val || '');
    };

    XMLStringifier.prototype.text = function(val) {
      if (this.options.noValidation) {
        return val;
      }
      return this.assertLegalChar(this.textEscape('' + val || ''));
    };

    XMLStringifier.prototype.cdata = function(val) {
      if (this.options.noValidation) {
        return val;
      }
      val = '' + val || '';
      val = val.replace(']]>', ']]]]><![CDATA[>');
      return this.assertLegalChar(val);
    };

    XMLStringifier.prototype.comment = function(val) {
      if (this.options.noValidation) {
        return val;
      }
      val = '' + val || '';
      if (val.match(/--/)) {
        throw new Error("Comment text cannot contain double-hypen: " + val);
      }
      return this.assertLegalChar(val);
    };

    XMLStringifier.prototype.raw = function(val) {
      if (this.options.noValidation) {
        return val;
      }
      return '' + val || '';
    };

    XMLStringifier.prototype.attValue = function(val) {
      if (this.options.noValidation) {
        return val;
      }
      return this.assertLegalChar(this.attEscape(val = '' + val || ''));
    };

    XMLStringifier.prototype.insTarget = function(val) {
      if (this.options.noValidation) {
        return val;
      }
      return this.assertLegalChar('' + val || '');
    };

    XMLStringifier.prototype.insValue = function(val) {
      if (this.options.noValidation) {
        return val;
      }
      val = '' + val || '';
      if (val.match(/\?>/)) {
        throw new Error("Invalid processing instruction value: " + val);
      }
      return this.assertLegalChar(val);
    };

    XMLStringifier.prototype.xmlVersion = function(val) {
      if (this.options.noValidation) {
        return val;
      }
      val = '' + val || '';
      if (!val.match(/1\.[0-9]+/)) {
        throw new Error("Invalid version number: " + val);
      }
      return val;
    };

    XMLStringifier.prototype.xmlEncoding = function(val) {
      if (this.options.noValidation) {
        return val;
      }
      val = '' + val || '';
      if (!val.match(/^[A-Za-z](?:[A-Za-z0-9._-])*$/)) {
        throw new Error("Invalid encoding: " + val);
      }
      return this.assertLegalChar(val);
    };

    XMLStringifier.prototype.xmlStandalone = function(val) {
      if (this.options.noValidation) {
        return val;
      }
      if (val) {
        return "yes";
      } else {
        return "no";
      }
    };

    XMLStringifier.prototype.dtdPubID = function(val) {
      if (this.options.noValidation) {
        return val;
      }
      return this.assertLegalChar('' + val || '');
    };

    XMLStringifier.prototype.dtdSysID = function(val) {
      if (this.options.noValidation) {
        return val;
      }
      return this.assertLegalChar('' + val || '');
    };

    XMLStringifier.prototype.dtdElementValue = function(val) {
      if (this.options.noValidation) {
        return val;
      }
      return this.assertLegalChar('' + val || '');
    };

    XMLStringifier.prototype.dtdAttType = function(val) {
      if (this.options.noValidation) {
        return val;
      }
      return this.assertLegalChar('' + val || '');
    };

    XMLStringifier.prototype.dtdAttDefault = function(val) {
      if (this.options.noValidation) {
        return val;
      }
      return this.assertLegalChar('' + val || '');
    };

    XMLStringifier.prototype.dtdEntityValue = function(val) {
      if (this.options.noValidation) {
        return val;
      }
      return this.assertLegalChar('' + val || '');
    };

    XMLStringifier.prototype.dtdNData = function(val) {
      if (this.options.noValidation) {
        return val;
      }
      return this.assertLegalChar('' + val || '');
    };

    XMLStringifier.prototype.convertAttKey = '@';

    XMLStringifier.prototype.convertPIKey = '?';

    XMLStringifier.prototype.convertTextKey = '#text';

    XMLStringifier.prototype.convertCDataKey = '#cdata';

    XMLStringifier.prototype.convertCommentKey = '#comment';

    XMLStringifier.prototype.convertRawKey = '#raw';

    XMLStringifier.prototype.assertLegalChar = function(str) {
      var regex, res;
      if (this.options.noValidation) {
        return str;
      }
      regex = '';
      if (this.options.version === '1.0') {
        regex = /[\0-\x08\x0B\f\x0E-\x1F\uFFFE\uFFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
        if (res = str.match(regex)) {
          throw new Error("Invalid character in string: " + str + " at index " + res.index);
        }
      } else if (this.options.version === '1.1') {
        regex = /[\0\uFFFE\uFFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
        if (res = str.match(regex)) {
          throw new Error("Invalid character in string: " + str + " at index " + res.index);
        }
      }
      return str;
    };

    XMLStringifier.prototype.assertLegalName = function(str) {
      var regex;
      if (this.options.noValidation) {
        return str;
      }
      this.assertLegalChar(str);
      regex = /^([:A-Z_a-z\xC0-\xD6\xD8-\xF6\xF8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]|[\uD800-\uDB7F][\uDC00-\uDFFF])([\x2D\.0-:A-Z_a-z\xB7\xC0-\xD6\xD8-\xF6\xF8-\u037D\u037F-\u1FFF\u200C\u200D\u203F\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]|[\uD800-\uDB7F][\uDC00-\uDFFF])*$/;
      if (!str.match(regex)) {
        throw new Error("Invalid character in name");
      }
      return str;
    };

    XMLStringifier.prototype.textEscape = function(str) {
      var ampregex;
      if (this.options.noValidation) {
        return str;
      }
      ampregex = this.options.noDoubleEncoding ? /(?!&\S+;)&/g : /&/g;
      return str.replace(ampregex, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/\r/g, '&#xD;');
    };

    XMLStringifier.prototype.attEscape = function(str) {
      var ampregex;
      if (this.options.noValidation) {
        return str;
      }
      ampregex = this.options.noDoubleEncoding ? /(?!&\S+;)&/g : /&/g;
      return str.replace(ampregex, '&amp;').replace(/</g, '&lt;').replace(/"/g, '&quot;').replace(/\t/g, '&#x9;').replace(/\n/g, '&#xA;').replace(/\r/g, '&#xD;');
    };

    return XMLStringifier;

  })();

}).call(this);

},{}],382:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var NodeType, XMLCharacterData, XMLText,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  NodeType = require('./NodeType');

  XMLCharacterData = require('./XMLCharacterData');

  module.exports = XMLText = (function(superClass) {
    extend(XMLText, superClass);

    function XMLText(parent, text) {
      XMLText.__super__.constructor.call(this, parent);
      if (text == null) {
        throw new Error("Missing element text. " + this.debugInfo());
      }
      this.name = "#text";
      this.type = NodeType.Text;
      this.value = this.stringify.text(text);
    }

    Object.defineProperty(XMLText.prototype, 'isElementContentWhitespace', {
      get: function() {
        throw new Error("This DOM method is not implemented." + this.debugInfo());
      }
    });

    Object.defineProperty(XMLText.prototype, 'wholeText', {
      get: function() {
        var next, prev, str;
        str = '';
        prev = this.previousSibling;
        while (prev) {
          str = prev.data + str;
          prev = prev.previousSibling;
        }
        str += this.data;
        next = this.nextSibling;
        while (next) {
          str = str + next.data;
          next = next.nextSibling;
        }
        return str;
      }
    });

    XMLText.prototype.clone = function() {
      return Object.create(this);
    };

    XMLText.prototype.toString = function(options) {
      return this.options.writer.text(this, this.options.writer.filterOptions(options));
    };

    XMLText.prototype.splitText = function(offset) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    XMLText.prototype.replaceWholeText = function(content) {
      throw new Error("This DOM method is not implemented." + this.debugInfo());
    };

    return XMLText;

  })(XMLCharacterData);

}).call(this);

},{"./NodeType":353,"./XMLCharacterData":358}],383:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var NodeType, WriterState, XMLCData, XMLComment, XMLDTDAttList, XMLDTDElement, XMLDTDEntity, XMLDTDNotation, XMLDeclaration, XMLDocType, XMLDummy, XMLElement, XMLProcessingInstruction, XMLRaw, XMLText, XMLWriterBase, assign,
    hasProp = {}.hasOwnProperty;

  assign = require('./Utility').assign;

  NodeType = require('./NodeType');

  XMLDeclaration = require('./XMLDeclaration');

  XMLDocType = require('./XMLDocType');

  XMLCData = require('./XMLCData');

  XMLComment = require('./XMLComment');

  XMLElement = require('./XMLElement');

  XMLRaw = require('./XMLRaw');

  XMLText = require('./XMLText');

  XMLProcessingInstruction = require('./XMLProcessingInstruction');

  XMLDummy = require('./XMLDummy');

  XMLDTDAttList = require('./XMLDTDAttList');

  XMLDTDElement = require('./XMLDTDElement');

  XMLDTDEntity = require('./XMLDTDEntity');

  XMLDTDNotation = require('./XMLDTDNotation');

  WriterState = require('./WriterState');

  module.exports = XMLWriterBase = (function() {
    function XMLWriterBase(options) {
      var key, ref, value;
      options || (options = {});
      this.options = options;
      ref = options.writer || {};
      for (key in ref) {
        if (!hasProp.call(ref, key)) continue;
        value = ref[key];
        this["_" + key] = this[key];
        this[key] = value;
      }
    }

    XMLWriterBase.prototype.filterOptions = function(options) {
      var filteredOptions, ref, ref1, ref2, ref3, ref4, ref5, ref6;
      options || (options = {});
      options = assign({}, this.options, options);
      filteredOptions = {
        writer: this
      };
      filteredOptions.pretty = options.pretty || false;
      filteredOptions.allowEmpty = options.allowEmpty || false;
      filteredOptions.indent = (ref = options.indent) != null ? ref : '  ';
      filteredOptions.newline = (ref1 = options.newline) != null ? ref1 : '\n';
      filteredOptions.offset = (ref2 = options.offset) != null ? ref2 : 0;
      filteredOptions.dontPrettyTextNodes = (ref3 = (ref4 = options.dontPrettyTextNodes) != null ? ref4 : options.dontprettytextnodes) != null ? ref3 : 0;
      filteredOptions.spaceBeforeSlash = (ref5 = (ref6 = options.spaceBeforeSlash) != null ? ref6 : options.spacebeforeslash) != null ? ref5 : '';
      if (filteredOptions.spaceBeforeSlash === true) {
        filteredOptions.spaceBeforeSlash = ' ';
      }
      filteredOptions.suppressPrettyCount = 0;
      filteredOptions.user = {};
      filteredOptions.state = WriterState.None;
      return filteredOptions;
    };

    XMLWriterBase.prototype.indent = function(node, options, level) {
      var indentLevel;
      if (!options.pretty || options.suppressPrettyCount) {
        return '';
      } else if (options.pretty) {
        indentLevel = (level || 0) + options.offset + 1;
        if (indentLevel > 0) {
          return new Array(indentLevel).join(options.indent);
        }
      }
      return '';
    };

    XMLWriterBase.prototype.endline = function(node, options, level) {
      if (!options.pretty || options.suppressPrettyCount) {
        return '';
      } else {
        return options.newline;
      }
    };

    XMLWriterBase.prototype.attribute = function(att, options, level) {
      var r;
      this.openAttribute(att, options, level);
      r = ' ' + att.name + '="' + att.value + '"';
      this.closeAttribute(att, options, level);
      return r;
    };

    XMLWriterBase.prototype.cdata = function(node, options, level) {
      var r;
      this.openNode(node, options, level);
      options.state = WriterState.OpenTag;
      r = this.indent(node, options, level) + '<![CDATA[';
      options.state = WriterState.InsideTag;
      r += node.value;
      options.state = WriterState.CloseTag;
      r += ']]>' + this.endline(node, options, level);
      options.state = WriterState.None;
      this.closeNode(node, options, level);
      return r;
    };

    XMLWriterBase.prototype.comment = function(node, options, level) {
      var r;
      this.openNode(node, options, level);
      options.state = WriterState.OpenTag;
      r = this.indent(node, options, level) + '<!-- ';
      options.state = WriterState.InsideTag;
      r += node.value;
      options.state = WriterState.CloseTag;
      r += ' -->' + this.endline(node, options, level);
      options.state = WriterState.None;
      this.closeNode(node, options, level);
      return r;
    };

    XMLWriterBase.prototype.declaration = function(node, options, level) {
      var r;
      this.openNode(node, options, level);
      options.state = WriterState.OpenTag;
      r = this.indent(node, options, level) + '<?xml';
      options.state = WriterState.InsideTag;
      r += ' version="' + node.version + '"';
      if (node.encoding != null) {
        r += ' encoding="' + node.encoding + '"';
      }
      if (node.standalone != null) {
        r += ' standalone="' + node.standalone + '"';
      }
      options.state = WriterState.CloseTag;
      r += options.spaceBeforeSlash + '?>';
      r += this.endline(node, options, level);
      options.state = WriterState.None;
      this.closeNode(node, options, level);
      return r;
    };

    XMLWriterBase.prototype.docType = function(node, options, level) {
      var child, i, len, r, ref;
      level || (level = 0);
      this.openNode(node, options, level);
      options.state = WriterState.OpenTag;
      r = this.indent(node, options, level);
      r += '<!DOCTYPE ' + node.root().name;
      if (node.pubID && node.sysID) {
        r += ' PUBLIC "' + node.pubID + '" "' + node.sysID + '"';
      } else if (node.sysID) {
        r += ' SYSTEM "' + node.sysID + '"';
      }
      if (node.children.length > 0) {
        r += ' [';
        r += this.endline(node, options, level);
        options.state = WriterState.InsideTag;
        ref = node.children;
        for (i = 0, len = ref.length; i < len; i++) {
          child = ref[i];
          r += this.writeChildNode(child, options, level + 1);
        }
        options.state = WriterState.CloseTag;
        r += ']';
      }
      options.state = WriterState.CloseTag;
      r += options.spaceBeforeSlash + '>';
      r += this.endline(node, options, level);
      options.state = WriterState.None;
      this.closeNode(node, options, level);
      return r;
    };

    XMLWriterBase.prototype.element = function(node, options, level) {
      var att, child, childNodeCount, firstChildNode, i, j, len, len1, name, prettySuppressed, r, ref, ref1, ref2;
      level || (level = 0);
      prettySuppressed = false;
      r = '';
      this.openNode(node, options, level);
      options.state = WriterState.OpenTag;
      r += this.indent(node, options, level) + '<' + node.name;
      ref = node.attribs;
      for (name in ref) {
        if (!hasProp.call(ref, name)) continue;
        att = ref[name];
        r += this.attribute(att, options, level);
      }
      childNodeCount = node.children.length;
      firstChildNode = childNodeCount === 0 ? null : node.children[0];
      if (childNodeCount === 0 || node.children.every(function(e) {
        return (e.type === NodeType.Text || e.type === NodeType.Raw) && e.value === '';
      })) {
        if (options.allowEmpty) {
          r += '>';
          options.state = WriterState.CloseTag;
          r += '</' + node.name + '>' + this.endline(node, options, level);
        } else {
          options.state = WriterState.CloseTag;
          r += options.spaceBeforeSlash + '/>' + this.endline(node, options, level);
        }
      } else if (options.pretty && childNodeCount === 1 && (firstChildNode.type === NodeType.Text || firstChildNode.type === NodeType.Raw) && (firstChildNode.value != null)) {
        r += '>';
        options.state = WriterState.InsideTag;
        options.suppressPrettyCount++;
        prettySuppressed = true;
        r += this.writeChildNode(firstChildNode, options, level + 1);
        options.suppressPrettyCount--;
        prettySuppressed = false;
        options.state = WriterState.CloseTag;
        r += '</' + node.name + '>' + this.endline(node, options, level);
      } else {
        if (options.dontPrettyTextNodes) {
          ref1 = node.children;
          for (i = 0, len = ref1.length; i < len; i++) {
            child = ref1[i];
            if ((child.type === NodeType.Text || child.type === NodeType.Raw) && (child.value != null)) {
              options.suppressPrettyCount++;
              prettySuppressed = true;
              break;
            }
          }
        }
        r += '>' + this.endline(node, options, level);
        options.state = WriterState.InsideTag;
        ref2 = node.children;
        for (j = 0, len1 = ref2.length; j < len1; j++) {
          child = ref2[j];
          r += this.writeChildNode(child, options, level + 1);
        }
        options.state = WriterState.CloseTag;
        r += this.indent(node, options, level) + '</' + node.name + '>';
        if (prettySuppressed) {
          options.suppressPrettyCount--;
        }
        r += this.endline(node, options, level);
        options.state = WriterState.None;
      }
      this.closeNode(node, options, level);
      return r;
    };

    XMLWriterBase.prototype.writeChildNode = function(node, options, level) {
      switch (node.type) {
        case NodeType.CData:
          return this.cdata(node, options, level);
        case NodeType.Comment:
          return this.comment(node, options, level);
        case NodeType.Element:
          return this.element(node, options, level);
        case NodeType.Raw:
          return this.raw(node, options, level);
        case NodeType.Text:
          return this.text(node, options, level);
        case NodeType.ProcessingInstruction:
          return this.processingInstruction(node, options, level);
        case NodeType.Dummy:
          return '';
        case NodeType.Declaration:
          return this.declaration(node, options, level);
        case NodeType.DocType:
          return this.docType(node, options, level);
        case NodeType.AttributeDeclaration:
          return this.dtdAttList(node, options, level);
        case NodeType.ElementDeclaration:
          return this.dtdElement(node, options, level);
        case NodeType.EntityDeclaration:
          return this.dtdEntity(node, options, level);
        case NodeType.NotationDeclaration:
          return this.dtdNotation(node, options, level);
        default:
          throw new Error("Unknown XML node type: " + node.constructor.name);
      }
    };

    XMLWriterBase.prototype.processingInstruction = function(node, options, level) {
      var r;
      this.openNode(node, options, level);
      options.state = WriterState.OpenTag;
      r = this.indent(node, options, level) + '<?';
      options.state = WriterState.InsideTag;
      r += node.target;
      if (node.value) {
        r += ' ' + node.value;
      }
      options.state = WriterState.CloseTag;
      r += options.spaceBeforeSlash + '?>';
      r += this.endline(node, options, level);
      options.state = WriterState.None;
      this.closeNode(node, options, level);
      return r;
    };

    XMLWriterBase.prototype.raw = function(node, options, level) {
      var r;
      this.openNode(node, options, level);
      options.state = WriterState.OpenTag;
      r = this.indent(node, options, level);
      options.state = WriterState.InsideTag;
      r += node.value;
      options.state = WriterState.CloseTag;
      r += this.endline(node, options, level);
      options.state = WriterState.None;
      this.closeNode(node, options, level);
      return r;
    };

    XMLWriterBase.prototype.text = function(node, options, level) {
      var r;
      this.openNode(node, options, level);
      options.state = WriterState.OpenTag;
      r = this.indent(node, options, level);
      options.state = WriterState.InsideTag;
      r += node.value;
      options.state = WriterState.CloseTag;
      r += this.endline(node, options, level);
      options.state = WriterState.None;
      this.closeNode(node, options, level);
      return r;
    };

    XMLWriterBase.prototype.dtdAttList = function(node, options, level) {
      var r;
      this.openNode(node, options, level);
      options.state = WriterState.OpenTag;
      r = this.indent(node, options, level) + '<!ATTLIST';
      options.state = WriterState.InsideTag;
      r += ' ' + node.elementName + ' ' + node.attributeName + ' ' + node.attributeType;
      if (node.defaultValueType !== '#DEFAULT') {
        r += ' ' + node.defaultValueType;
      }
      if (node.defaultValue) {
        r += ' "' + node.defaultValue + '"';
      }
      options.state = WriterState.CloseTag;
      r += options.spaceBeforeSlash + '>' + this.endline(node, options, level);
      options.state = WriterState.None;
      this.closeNode(node, options, level);
      return r;
    };

    XMLWriterBase.prototype.dtdElement = function(node, options, level) {
      var r;
      this.openNode(node, options, level);
      options.state = WriterState.OpenTag;
      r = this.indent(node, options, level) + '<!ELEMENT';
      options.state = WriterState.InsideTag;
      r += ' ' + node.name + ' ' + node.value;
      options.state = WriterState.CloseTag;
      r += options.spaceBeforeSlash + '>' + this.endline(node, options, level);
      options.state = WriterState.None;
      this.closeNode(node, options, level);
      return r;
    };

    XMLWriterBase.prototype.dtdEntity = function(node, options, level) {
      var r;
      this.openNode(node, options, level);
      options.state = WriterState.OpenTag;
      r = this.indent(node, options, level) + '<!ENTITY';
      options.state = WriterState.InsideTag;
      if (node.pe) {
        r += ' %';
      }
      r += ' ' + node.name;
      if (node.value) {
        r += ' "' + node.value + '"';
      } else {
        if (node.pubID && node.sysID) {
          r += ' PUBLIC "' + node.pubID + '" "' + node.sysID + '"';
        } else if (node.sysID) {
          r += ' SYSTEM "' + node.sysID + '"';
        }
        if (node.nData) {
          r += ' NDATA ' + node.nData;
        }
      }
      options.state = WriterState.CloseTag;
      r += options.spaceBeforeSlash + '>' + this.endline(node, options, level);
      options.state = WriterState.None;
      this.closeNode(node, options, level);
      return r;
    };

    XMLWriterBase.prototype.dtdNotation = function(node, options, level) {
      var r;
      this.openNode(node, options, level);
      options.state = WriterState.OpenTag;
      r = this.indent(node, options, level) + '<!NOTATION';
      options.state = WriterState.InsideTag;
      r += ' ' + node.name;
      if (node.pubID && node.sysID) {
        r += ' PUBLIC "' + node.pubID + '" "' + node.sysID + '"';
      } else if (node.pubID) {
        r += ' PUBLIC "' + node.pubID + '"';
      } else if (node.sysID) {
        r += ' SYSTEM "' + node.sysID + '"';
      }
      options.state = WriterState.CloseTag;
      r += options.spaceBeforeSlash + '>' + this.endline(node, options, level);
      options.state = WriterState.None;
      this.closeNode(node, options, level);
      return r;
    };

    XMLWriterBase.prototype.openNode = function(node, options, level) {};

    XMLWriterBase.prototype.closeNode = function(node, options, level) {};

    XMLWriterBase.prototype.openAttribute = function(att, options, level) {};

    XMLWriterBase.prototype.closeAttribute = function(att, options, level) {};

    return XMLWriterBase;

  })();

}).call(this);

},{"./NodeType":353,"./Utility":354,"./WriterState":355,"./XMLCData":357,"./XMLComment":359,"./XMLDTDAttList":364,"./XMLDTDElement":365,"./XMLDTDEntity":366,"./XMLDTDNotation":367,"./XMLDeclaration":368,"./XMLDocType":369,"./XMLDummy":372,"./XMLElement":373,"./XMLProcessingInstruction":377,"./XMLRaw":378,"./XMLText":382}],384:[function(require,module,exports){
// Generated by CoffeeScript 1.12.7
(function() {
  var NodeType, WriterState, XMLDOMImplementation, XMLDocument, XMLDocumentCB, XMLStreamWriter, XMLStringWriter, assign, isFunction, ref;

  ref = require('./Utility'), assign = ref.assign, isFunction = ref.isFunction;

  XMLDOMImplementation = require('./XMLDOMImplementation');

  XMLDocument = require('./XMLDocument');

  XMLDocumentCB = require('./XMLDocumentCB');

  XMLStringWriter = require('./XMLStringWriter');

  XMLStreamWriter = require('./XMLStreamWriter');

  NodeType = require('./NodeType');

  WriterState = require('./WriterState');

  module.exports.create = function(name, xmldec, doctype, options) {
    var doc, root;
    if (name == null) {
      throw new Error("Root element needs a name.");
    }
    options = assign({}, xmldec, doctype, options);
    doc = new XMLDocument(options);
    root = doc.element(name);
    if (!options.headless) {
      doc.declaration(options);
      if ((options.pubID != null) || (options.sysID != null)) {
        doc.dtd(options);
      }
    }
    return root;
  };

  module.exports.begin = function(options, onData, onEnd) {
    var ref1;
    if (isFunction(options)) {
      ref1 = [options, onData], onData = ref1[0], onEnd = ref1[1];
      options = {};
    }
    if (onData) {
      return new XMLDocumentCB(options, onData, onEnd);
    } else {
      return new XMLDocument(options);
    }
  };

  module.exports.stringWriter = function(options) {
    return new XMLStringWriter(options);
  };

  module.exports.streamWriter = function(stream, options) {
    return new XMLStreamWriter(stream, options);
  };

  module.exports.implementation = new XMLDOMImplementation();

  module.exports.nodeType = NodeType;

  module.exports.writerState = WriterState;

}).call(this);

},{"./NodeType":353,"./Utility":354,"./WriterState":355,"./XMLDOMImplementation":362,"./XMLDocument":370,"./XMLDocumentCB":371,"./XMLStreamWriter":379,"./XMLStringWriter":380}],385:[function(require,module,exports){
module.exports = extend

var hasOwnProperty = Object.prototype.hasOwnProperty;

function extend() {
    var target = {}

    for (var i = 0; i < arguments.length; i++) {
        var source = arguments[i]

        for (var key in source) {
            if (hasOwnProperty.call(source, key)) {
                target[key] = source[key]
            }
        }
    }

    return target
}

},{}],386:[function(require,module,exports){
"use strict";

require("core-js/modules/es.array.concat");

require("core-js/modules/es.array.fill");

require("core-js/modules/es.array.join");

require("core-js/modules/es.array.slice");

require("core-js/modules/es.object.to-string");

require("core-js/modules/es.regexp.to-string");

var Buffer = require('buffer').Buffer;

var sha = require('./sha');

var md5 = require('./md5');

var algorithms = {
  sha1: sha,
  md5: md5
};
var blocksize = 64;
var zeroBuffer = Buffer.alloc(blocksize);
zeroBuffer.fill(0);

function hmac(fn, key, data) {
  if (!Buffer.isBuffer(key)) key = Buffer.from(key);
  if (!Buffer.isBuffer(data)) data = Buffer.from(data);

  if (key.length > blocksize) {
    key = fn(key);
  } else if (key.length < blocksize) {
    key = Buffer.concat([key, zeroBuffer], blocksize);
  }

  var ipad = Buffer.alloc(blocksize),
      opad = Buffer.alloc(blocksize);

  for (var i = 0; i < blocksize; i++) {
    ipad[i] = key[i] ^ 0x36;
    opad[i] = key[i] ^ 0x5C;
  }

  var hash = fn(Buffer.concat([ipad, data]));
  return fn(Buffer.concat([opad, hash]));
}

function hash(alg, key) {
  alg = alg || 'sha1';
  var fn = algorithms[alg];
  var bufs = [];
  var length = 0;
  if (!fn) error('algorithm:', alg, 'is not yet supported');
  return {
    update: function update(data) {
      if (!Buffer.isBuffer(data)) data = Buffer.from(data);
      bufs.push(data);
      length += data.length;
      return this;
    },
    digest: function digest(enc) {
      var buf = Buffer.concat(bufs);
      var r = key ? hmac(fn, key, buf) : fn(buf);
      bufs = null;
      return enc ? r.toString(enc) : r;
    }
  };
}

function error() {
  var m = [].slice.call(arguments).join(' ');
  throw new Error([m, 'we accept pull requests', 'http://github.com/dominictarr/crypto-browserify'].join('\n'));
}

exports.createHash = function (alg) {
  return hash(alg);
};

exports.createHmac = function (alg, key) {
  return hash(alg, key);
};

exports.createCredentials = function () {
  error('sorry,createCredentials is not implemented yet');
};

exports.createCipher = function () {
  error('sorry,createCipher is not implemented yet');
};

exports.createCipheriv = function () {
  error('sorry,createCipheriv is not implemented yet');
};

exports.createDecipher = function () {
  error('sorry,createDecipher is not implemented yet');
};

exports.createDecipheriv = function () {
  error('sorry,createDecipheriv is not implemented yet');
};

exports.createSign = function () {
  error('sorry,createSign is not implemented yet');
};

exports.createVerify = function () {
  error('sorry,createVerify is not implemented yet');
};

exports.createDiffieHellman = function () {
  error('sorry,createDiffieHellman is not implemented yet');
};

exports.pbkdf2 = function () {
  error('sorry,pbkdf2 is not implemented yet');
};

},{"./md5":388,"./sha":389,"buffer":99,"core-js/modules/es.array.concat":234,"core-js/modules/es.array.fill":235,"core-js/modules/es.array.join":243,"core-js/modules/es.array.slice":246,"core-js/modules/es.object.to-string":254,"core-js/modules/es.regexp.to-string":257}],387:[function(require,module,exports){
"use strict";

require("core-js/modules/es.array.concat");

require("core-js/modules/es.array.fill");

var Buffer = require('buffer').Buffer;

var intSize = 4;
var zeroBuffer = Buffer.alloc(intSize);
zeroBuffer.fill(0);
var chrsz = 8;

function toArray(buf, bigEndian) {
  if (buf.length % intSize !== 0) {
    var len = buf.length + (intSize - buf.length % intSize);
    buf = Buffer.concat([buf, zeroBuffer], len);
  }

  var arr = [];
  var fn = bigEndian ? buf.readInt32BE : buf.readInt32LE;

  for (var i = 0; i < buf.length; i += intSize) {
    arr.push(fn.call(buf, i));
  }

  return arr;
}

function toBuffer(arr, size, bigEndian) {
  var buf = Buffer.alloc(size);
  var fn = bigEndian ? buf.writeInt32BE : buf.writeInt32LE;

  for (var i = 0; i < arr.length; i++) {
    fn.call(buf, arr[i], i * 4, true);
  }

  return buf;
}

function hash(buf, fn, hashSize, bigEndian) {
  if (!Buffer.isBuffer(buf)) buf = Buffer.from(buf);
  var arr = fn(toArray(buf, bigEndian), buf.length * chrsz);
  return toBuffer(arr, hashSize, bigEndian);
}

module.exports = {
  hash: hash
};

},{"buffer":99,"core-js/modules/es.array.concat":234,"core-js/modules/es.array.fill":235}],388:[function(require,module,exports){
"use strict";

/*
 * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
 * Digest Algorithm, as defined in RFC 1321.
 * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 * Distributed under the BSD License
 * See http://pajhome.org.uk/crypt/md5 for more info.
 */
var helpers = require('./helpers');
/*
 * Perform a simple self-test to see if the VM is working
 */


function md5_vm_test() {
  return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72";
}
/*
 * Calculate the MD5 of an array of little-endian words, and a bit length
 */


function core_md5(x, len) {
  /* append padding */
  x[len >> 5] |= 0x80 << len % 32;
  x[(len + 64 >>> 9 << 4) + 14] = len;
  var a = 1732584193;
  var b = -271733879;
  var c = -1732584194;
  var d = 271733878;

  for (var i = 0; i < x.length; i += 16) {
    var olda = a;
    var oldb = b;
    var oldc = c;
    var oldd = d;
    a = md5_ff(a, b, c, d, x[i + 0], 7, -680876936);
    d = md5_ff(d, a, b, c, x[i + 1], 12, -389564586);
    c = md5_ff(c, d, a, b, x[i + 2], 17, 606105819);
    b = md5_ff(b, c, d, a, x[i + 3], 22, -1044525330);
    a = md5_ff(a, b, c, d, x[i + 4], 7, -176418897);
    d = md5_ff(d, a, b, c, x[i + 5], 12, 1200080426);
    c = md5_ff(c, d, a, b, x[i + 6], 17, -1473231341);
    b = md5_ff(b, c, d, a, x[i + 7], 22, -45705983);
    a = md5_ff(a, b, c, d, x[i + 8], 7, 1770035416);
    d = md5_ff(d, a, b, c, x[i + 9], 12, -1958414417);
    c = md5_ff(c, d, a, b, x[i + 10], 17, -42063);
    b = md5_ff(b, c, d, a, x[i + 11], 22, -1990404162);
    a = md5_ff(a, b, c, d, x[i + 12], 7, 1804603682);
    d = md5_ff(d, a, b, c, x[i + 13], 12, -40341101);
    c = md5_ff(c, d, a, b, x[i + 14], 17, -1502002290);
    b = md5_ff(b, c, d, a, x[i + 15], 22, 1236535329);
    a = md5_gg(a, b, c, d, x[i + 1], 5, -165796510);
    d = md5_gg(d, a, b, c, x[i + 6], 9, -1069501632);
    c = md5_gg(c, d, a, b, x[i + 11], 14, 643717713);
    b = md5_gg(b, c, d, a, x[i + 0], 20, -373897302);
    a = md5_gg(a, b, c, d, x[i + 5], 5, -701558691);
    d = md5_gg(d, a, b, c, x[i + 10], 9, 38016083);
    c = md5_gg(c, d, a, b, x[i + 15], 14, -660478335);
    b = md5_gg(b, c, d, a, x[i + 4], 20, -405537848);
    a = md5_gg(a, b, c, d, x[i + 9], 5, 568446438);
    d = md5_gg(d, a, b, c, x[i + 14], 9, -1019803690);
    c = md5_gg(c, d, a, b, x[i + 3], 14, -187363961);
    b = md5_gg(b, c, d, a, x[i + 8], 20, 1163531501);
    a = md5_gg(a, b, c, d, x[i + 13], 5, -1444681467);
    d = md5_gg(d, a, b, c, x[i + 2], 9, -51403784);
    c = md5_gg(c, d, a, b, x[i + 7], 14, 1735328473);
    b = md5_gg(b, c, d, a, x[i + 12], 20, -1926607734);
    a = md5_hh(a, b, c, d, x[i + 5], 4, -378558);
    d = md5_hh(d, a, b, c, x[i + 8], 11, -2022574463);
    c = md5_hh(c, d, a, b, x[i + 11], 16, 1839030562);
    b = md5_hh(b, c, d, a, x[i + 14], 23, -35309556);
    a = md5_hh(a, b, c, d, x[i + 1], 4, -1530992060);
    d = md5_hh(d, a, b, c, x[i + 4], 11, 1272893353);
    c = md5_hh(c, d, a, b, x[i + 7], 16, -155497632);
    b = md5_hh(b, c, d, a, x[i + 10], 23, -1094730640);
    a = md5_hh(a, b, c, d, x[i + 13], 4, 681279174);
    d = md5_hh(d, a, b, c, x[i + 0], 11, -358537222);
    c = md5_hh(c, d, a, b, x[i + 3], 16, -722521979);
    b = md5_hh(b, c, d, a, x[i + 6], 23, 76029189);
    a = md5_hh(a, b, c, d, x[i + 9], 4, -640364487);
    d = md5_hh(d, a, b, c, x[i + 12], 11, -421815835);
    c = md5_hh(c, d, a, b, x[i + 15], 16, 530742520);
    b = md5_hh(b, c, d, a, x[i + 2], 23, -995338651);
    a = md5_ii(a, b, c, d, x[i + 0], 6, -198630844);
    d = md5_ii(d, a, b, c, x[i + 7], 10, 1126891415);
    c = md5_ii(c, d, a, b, x[i + 14], 15, -1416354905);
    b = md5_ii(b, c, d, a, x[i + 5], 21, -57434055);
    a = md5_ii(a, b, c, d, x[i + 12], 6, 1700485571);
    d = md5_ii(d, a, b, c, x[i + 3], 10, -1894986606);
    c = md5_ii(c, d, a, b, x[i + 10], 15, -1051523);
    b = md5_ii(b, c, d, a, x[i + 1], 21, -2054922799);
    a = md5_ii(a, b, c, d, x[i + 8], 6, 1873313359);
    d = md5_ii(d, a, b, c, x[i + 15], 10, -30611744);
    c = md5_ii(c, d, a, b, x[i + 6], 15, -1560198380);
    b = md5_ii(b, c, d, a, x[i + 13], 21, 1309151649);
    a = md5_ii(a, b, c, d, x[i + 4], 6, -145523070);
    d = md5_ii(d, a, b, c, x[i + 11], 10, -1120210379);
    c = md5_ii(c, d, a, b, x[i + 2], 15, 718787259);
    b = md5_ii(b, c, d, a, x[i + 9], 21, -343485551);
    a = safe_add(a, olda);
    b = safe_add(b, oldb);
    c = safe_add(c, oldc);
    d = safe_add(d, oldd);
  }

  return Array(a, b, c, d);
}
/*
 * These functions implement the four basic operations the algorithm uses.
 */


function md5_cmn(q, a, b, x, s, t) {
  return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b);
}

function md5_ff(a, b, c, d, x, s, t) {
  return md5_cmn(b & c | ~b & d, a, b, x, s, t);
}

function md5_gg(a, b, c, d, x, s, t) {
  return md5_cmn(b & d | c & ~d, a, b, x, s, t);
}

function md5_hh(a, b, c, d, x, s, t) {
  return md5_cmn(b ^ c ^ d, a, b, x, s, t);
}

function md5_ii(a, b, c, d, x, s, t) {
  return md5_cmn(c ^ (b | ~d), a, b, x, s, t);
}
/*
 * Add integers, wrapping at 2^32. This uses 16-bit operations internally
 * to work around bugs in some JS interpreters.
 */


function safe_add(x, y) {
  var lsw = (x & 0xFFFF) + (y & 0xFFFF);
  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
  return msw << 16 | lsw & 0xFFFF;
}
/*
 * Bitwise rotate a 32-bit number to the left.
 */


function bit_rol(num, cnt) {
  return num << cnt | num >>> 32 - cnt;
}

module.exports = function md5(buf) {
  return helpers.hash(buf, core_md5, 16);
};

},{"./helpers":387}],389:[function(require,module,exports){
"use strict";

/*
 * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
 * in FIPS PUB 180-1
 * Version 2.1a Copyright Paul Johnston 2000 - 2002.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 * Distributed under the BSD License
 * See http://pajhome.org.uk/crypt/md5 for details.
 */
var helpers = require('./helpers');
/*
 * Calculate the SHA-1 of an array of big-endian words, and a bit length
 */


function core_sha1(x, len) {
  /* append padding */
  x[len >> 5] |= 0x80 << 24 - len % 32;
  x[(len + 64 >> 9 << 4) + 15] = len;
  var w = Array(80);
  var a = 1732584193;
  var b = -271733879;
  var c = -1732584194;
  var d = 271733878;
  var e = -1009589776;

  for (var i = 0; i < x.length; i += 16) {
    var olda = a;
    var oldb = b;
    var oldc = c;
    var oldd = d;
    var olde = e;

    for (var j = 0; j < 80; j++) {
      if (j < 16) w[j] = x[i + j];else w[j] = rol(w[j - 3] ^ w[j - 8] ^ w[j - 14] ^ w[j - 16], 1);
      var t = safe_add(safe_add(rol(a, 5), sha1_ft(j, b, c, d)), safe_add(safe_add(e, w[j]), sha1_kt(j)));
      e = d;
      d = c;
      c = rol(b, 30);
      b = a;
      a = t;
    }

    a = safe_add(a, olda);
    b = safe_add(b, oldb);
    c = safe_add(c, oldc);
    d = safe_add(d, oldd);
    e = safe_add(e, olde);
  }

  return Array(a, b, c, d, e);
}
/*
 * Perform the appropriate triplet combination function for the current
 * iteration
 */


function sha1_ft(t, b, c, d) {
  if (t < 20) return b & c | ~b & d;
  if (t < 40) return b ^ c ^ d;
  if (t < 60) return b & c | b & d | c & d;
  return b ^ c ^ d;
}
/*
 * Determine the appropriate additive constant for the current iteration
 */


function sha1_kt(t) {
  return t < 20 ? 1518500249 : t < 40 ? 1859775393 : t < 60 ? -1894007588 : -899497514;
}
/*
 * Add integers, wrapping at 2^32. This uses 16-bit operations internally
 * to work around bugs in some JS interpreters.
 */


function safe_add(x, y) {
  var lsw = (x & 0xFFFF) + (y & 0xFFFF);
  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
  return msw << 16 | lsw & 0xFFFF;
}
/*
 * Bitwise rotate a 32-bit number to the left.
 */


function rol(num, cnt) {
  return num << cnt | num >>> 32 - cnt;
}

module.exports = function sha1(buf) {
  return helpers.hash(buf, core_sha1, 20, true);
};

},{"./helpers":387}],390:[function(require,module,exports){
"use strict";

module.exports = function () {
  return function () {};
};

},{}],391:[function(require,module,exports){
(function (Buffer){
"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _typeof2 = _interopRequireDefault(require("@babel/runtime/helpers/typeof"));

var _require = require('stream'),
    Stream = _require.Stream;

var _require2 = require('../lib/common/utils/isArray'),
    isArray = _require2.isArray;

module.exports.string = function isString(obj) {
  return typeof obj === 'string';
};

module.exports.array = isArray;
module.exports.buffer = Buffer.isBuffer;

function isStream(obj) {
  return obj instanceof Stream;
}

module.exports.writableStream = function isWritableStream(obj) {
  return isStream(obj) && typeof obj._write === 'function' && (0, _typeof2.default)(obj._writableState) === 'object';
};

}).call(this,{"isBuffer":require("../node_modules/is-buffer/index.js")})
},{"../lib/common/utils/isArray":59,"../node_modules/is-buffer/index.js":307,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/helpers/typeof":73,"stream":339}],392:[function(require,module,exports){
"use strict";

var immediate = require('immediate');

var process = module.exports = {};
process.nextTick = immediate;
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues

process.versions = {};

function noop() {}

process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;
process.prependListener = noop;
process.prependOnceListener = noop;

process.listeners = function (name) {
  return [];
};

process.binding = function (name) {
  throw new Error('process.binding is not supported');
};

process.cwd = function () {
  return '/';
};

process.chdir = function (dir) {
  throw new Error('process.chdir is not supported');
};

process.umask = function () {
  return 0;
};

},{"immediate":300}],393:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.array.concat");

require("core-js/modules/es.array.index-of");

require("core-js/modules/es.array.join");

require("core-js/modules/es.array.last-index-of");

require("core-js/modules/es.array.slice");

require("core-js/modules/es.array.splice");

require("core-js/modules/es.object.keys");

require("core-js/modules/es.regexp.exec");

require("core-js/modules/es.string.match");

require("core-js/modules/es.string.replace");

require("core-js/modules/es.string.search");

require("core-js/modules/es.string.split");

require("core-js/modules/es.string.trim");

var _typeof2 = _interopRequireDefault(require("@babel/runtime/helpers/typeof"));

var punycode = require('punycode');

var util = require('./util');

exports.parse = urlParse;
exports.resolve = urlResolve;
exports.resolveObject = urlResolveObject;
exports.format = urlFormat;
exports.Url = Url;

function Url() {
  this.protocol = null;
  this.slashes = null;
  this.auth = null;
  this.host = null;
  this.port = null;
  this.hostname = null;
  this.hash = null;
  this.search = null;
  this.query = null;
  this.pathname = null;
  this.path = null;
  this.href = null;
} // Reference: RFC 3986, RFC 1808, RFC 2396
// define these here so at least they only have to be
// compiled once on the first module load.


var protocolPattern = /^([a-z0-9.+-]+:)/i,
    portPattern = /:[0-9]*$/,
    // Special case for a simple path URL
simplePathPattern = /^(\/\/?(?!\/)[^\?\s]*)(\?[^\s]*)?$/,
    // RFC 2396: characters reserved for delimiting URLs.
// We actually just auto-escape these.
delims = ['<', '>', '"', '`', ' ', '\r', '\n', '\t'],
    // RFC 2396: characters not allowed for various reasons.
unwise = ['{', '}', '|', '\\', '^', '`'].concat(delims),
    // Allowed by RFCs, but cause of XSS attacks.  Always escape these.
autoEscape = ['\''].concat(unwise),
    // Characters that are never ever allowed in a hostname.
// Note that any invalid chars are also handled, but these
// are the ones that are *expected* to be seen, so we fast-path
// them.
nonHostChars = ['%', '/', '?', ';', '#'].concat(autoEscape),
    hostEndingChars = ['/', '?', '#'],
    hostnameMaxLen = 255,
    hostnamePartPattern = /^[+a-z0-9A-Z_-]{0,63}$/,
    hostnamePartStart = /^([+a-z0-9A-Z_-]{0,63})(.*)$/,
    // protocols that can allow "unsafe" and "unwise" chars.
unsafeProtocol = {
  'javascript': true,
  'javascript:': true
},
    // protocols that never have a hostname.
hostlessProtocol = {
  'javascript': true,
  'javascript:': true
},
    // protocols that always contain a // bit.
slashedProtocol = {
  'http': true,
  'https': true,
  'ftp': true,
  'gopher': true,
  'file': true,
  'http:': true,
  'https:': true,
  'ftp:': true,
  'gopher:': true,
  'file:': true
},
    querystring = require('querystring');

function urlParse(url, parseQueryString, slashesDenoteHost) {
  if (url && util.isObject(url) && url instanceof Url) return url;
  var u = new Url();
  u.parse(url, parseQueryString, slashesDenoteHost);
  return u;
}

Url.prototype.parse = function (url, parseQueryString, slashesDenoteHost) {
  if (!util.isString(url)) {
    throw new TypeError("Parameter 'url' must be a string, not " + (0, _typeof2.default)(url));
  } // Copy chrome, IE, opera backslash-handling behavior.
  // Back slashes before the query string get converted to forward slashes
  // See: https://code.google.com/p/chromium/issues/detail?id=25916


  var queryIndex = url.indexOf('?'),
      splitter = queryIndex !== -1 && queryIndex < url.indexOf('#') ? '?' : '#',
      uSplit = url.split(splitter),
      slashRegex = /\\/g;
  uSplit[0] = uSplit[0].replace(slashRegex, '/');
  url = uSplit.join(splitter);
  var rest = url; // trim before proceeding.
  // This is to support parse stuff like "  http://foo.com  \n"

  rest = rest.trim();

  if (!slashesDenoteHost && url.split('#').length === 1) {
    // Try fast path regexp
    var simplePath = simplePathPattern.exec(rest);

    if (simplePath) {
      this.path = rest;
      this.href = rest;
      this.pathname = simplePath[1];

      if (simplePath[2]) {
        this.search = simplePath[2];

        if (parseQueryString) {
          this.query = querystring.parse(this.search.substr(1));
        } else {
          this.query = this.search.substr(1);
        }
      } else if (parseQueryString) {
        this.search = '';
        this.query = {};
      }

      return this;
    }
  }

  var proto = protocolPattern.exec(rest);

  if (proto) {
    proto = proto[0];
    var lowerProto = proto.toLowerCase();
    this.protocol = lowerProto;
    rest = rest.substr(proto.length);
  } // figure out if it's got a host
  // user@server is *always* interpreted as a hostname, and url
  // resolution will treat //foo/bar as host=foo,path=bar because that's
  // how the browser resolves relative URLs.


  if (slashesDenoteHost || proto || rest.match(/^\/\/[^@\/]+@[^@\/]+/)) {
    var slashes = rest.substr(0, 2) === '//';

    if (slashes && !(proto && hostlessProtocol[proto])) {
      rest = rest.substr(2);
      this.slashes = true;
    }
  }

  if (!hostlessProtocol[proto] && (slashes || proto && !slashedProtocol[proto])) {
    // there's a hostname.
    // the first instance of /, ?, ;, or # ends the host.
    //
    // If there is an @ in the hostname, then non-host chars *are* allowed
    // to the left of the last @ sign, unless some host-ending character
    // comes *before* the @-sign.
    // URLs are obnoxious.
    //
    // ex:
    // http://a@b@c/ => user:a@b host:c
    // http://a@b?@c => user:a host:c path:/?@c
    // v0.12 TODO(isaacs): This is not quite how Chrome does things.
    // Review our test case against browsers more comprehensively.
    // find the first instance of any hostEndingChars
    var hostEnd = -1;

    for (var i = 0; i < hostEndingChars.length; i++) {
      var hec = rest.indexOf(hostEndingChars[i]);
      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) hostEnd = hec;
    } // at this point, either we have an explicit point where the
    // auth portion cannot go past, or the last @ char is the decider.


    var auth, atSign;

    if (hostEnd === -1) {
      // atSign can be anywhere.
      atSign = rest.lastIndexOf('@');
    } else {
      // atSign must be in auth portion.
      // http://a@b/c@d => host:b auth:a path:/c@d
      atSign = rest.lastIndexOf('@', hostEnd);
    } // Now we have a portion which is definitely the auth.
    // Pull that off.


    if (atSign !== -1) {
      auth = rest.slice(0, atSign);
      rest = rest.slice(atSign + 1);
      this.auth = decodeURIComponent(auth);
    } // the host is the remaining to the left of the first non-host char


    hostEnd = -1;

    for (var i = 0; i < nonHostChars.length; i++) {
      var hec = rest.indexOf(nonHostChars[i]);
      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) hostEnd = hec;
    } // if we still have not hit it, then the entire thing is a host.


    if (hostEnd === -1) hostEnd = rest.length;
    this.host = rest.slice(0, hostEnd);
    rest = rest.slice(hostEnd); // pull out port.

    this.parseHost(); // we've indicated that there is a hostname,
    // so even if it's empty, it has to be present.

    this.hostname = this.hostname || ''; // if hostname begins with [ and ends with ]
    // assume that it's an IPv6 address.

    var ipv6Hostname = this.hostname[0] === '[' && this.hostname[this.hostname.length - 1] === ']'; // validate a little.

    if (!ipv6Hostname) {
      var hostparts = this.hostname.split('.');

      for (var i = 0, l = hostparts.length; i < l; i++) {
        var part = hostparts[i];
        if (!part) continue;

        if (!part.match(hostnamePartPattern)) {
          var newpart = '';

          for (var j = 0, k = part.length; j < k; j++) {
            if (part.charCodeAt(j) > 127) {
              // we replace non-ASCII char with a temporary placeholder
              // we need this to make sure size of hostname is not
              // broken by replacing non-ASCII by nothing
              newpart += 'x';
            } else {
              newpart += part[j];
            }
          } // we test again with ASCII char only


          if (!newpart.match(hostnamePartPattern)) {
            var validParts = hostparts.slice(0, i);
            var notHost = hostparts.slice(i + 1);
            var bit = part.match(hostnamePartStart);

            if (bit) {
              validParts.push(bit[1]);
              notHost.unshift(bit[2]);
            }

            if (notHost.length) {
              rest = '/' + notHost.join('.') + rest;
            }

            this.hostname = validParts.join('.');
            break;
          }
        }
      }
    }

    if (this.hostname.length > hostnameMaxLen) {
      this.hostname = '';
    } else {
      // hostnames are always lower case.
      this.hostname = this.hostname.toLowerCase();
    }

    if (!ipv6Hostname) {
      // IDNA Support: Returns a punycoded representation of "domain".
      // It only converts parts of the domain name that
      // have non-ASCII characters, i.e. it doesn't matter if
      // you call it with a domain that already is ASCII-only.
      this.hostname = punycode.toASCII(this.hostname);
    }

    var p = this.port ? ':' + this.port : '';
    var h = this.hostname || '';
    this.host = h + p;
    this.href += this.host; // strip [ and ] from the hostname
    // the host field still retains them, though

    if (ipv6Hostname) {
      this.hostname = this.hostname.substr(1, this.hostname.length - 2);

      if (rest[0] !== '/') {
        rest = '/' + rest;
      }
    }
  } // now rest is set to the post-host stuff.
  // chop off any delim chars.


  if (!unsafeProtocol[lowerProto]) {
    // First, make 100% sure that any "autoEscape" chars get
    // escaped, even if encodeURIComponent doesn't think they
    // need to be.
    for (var i = 0, l = autoEscape.length; i < l; i++) {
      var ae = autoEscape[i];
      if (rest.indexOf(ae) === -1) continue;
      var esc = encodeURIComponent(ae);

      if (esc === ae) {
        esc = escape(ae);
      }

      rest = rest.split(ae).join(esc);
    }
  } // chop off from the tail first.


  var hash = rest.indexOf('#');

  if (hash !== -1) {
    // got a fragment string.
    this.hash = rest.substr(hash);
    rest = rest.slice(0, hash);
  }

  var qm = rest.indexOf('?');

  if (qm !== -1) {
    this.search = rest.substr(qm);
    this.query = rest.substr(qm + 1);

    if (parseQueryString) {
      this.query = querystring.parse(this.query);
    }

    rest = rest.slice(0, qm);
  } else if (parseQueryString) {
    // no query string, but parseQueryString still requested
    this.search = '';
    this.query = {};
  }

  if (rest) this.pathname = rest;

  if (slashedProtocol[lowerProto] && this.hostname && !this.pathname) {
    this.pathname = '/';
  } //to support http.request


  if (this.pathname || this.search) {
    var p = this.pathname || '';
    var s = this.search || '';
    this.path = p + s;
  } // finally, reconstruct the href based on what has been validated.


  this.href = this.format();
  return this;
}; // format a parsed object into a url string


function urlFormat(obj) {
  // ensure it's an object, and not a string url.
  // If it's an obj, this is a no-op.
  // this way, you can call url_format() on strings
  // to clean up potentially wonky urls.
  if (util.isString(obj)) obj = urlParse(obj);
  if (!(obj instanceof Url)) return Url.prototype.format.call(obj);
  return obj.format();
}

Url.prototype.format = function () {
  var auth = this.auth || '';

  if (auth) {
    auth = encodeURIComponent(auth);
    auth = auth.replace(/%3A/i, ':');
    auth += '@';
  }

  var protocol = this.protocol || '',
      pathname = this.pathname || '',
      hash = this.hash || '',
      host = false,
      query = '';

  if (this.host) {
    host = auth + this.host;
  } else if (this.hostname) {
    host = auth + (this.hostname.indexOf(':') === -1 ? this.hostname : '[' + this.hostname + ']');

    if (this.port) {
      host += ':' + this.port;
    }
  }

  if (this.query && util.isObject(this.query) && Object.keys(this.query).length) {
    query = querystring.stringify(this.query);
  }

  var search = this.search || query && '?' + query || '';
  if (protocol && protocol.substr(-1) !== ':') protocol += ':'; // only the slashedProtocols get the //.  Not mailto:, xmpp:, etc.
  // unless they had them to begin with.

  if (this.slashes || (!protocol || slashedProtocol[protocol]) && host !== false) {
    host = '//' + (host || '');
    if (pathname && pathname.charAt(0) !== '/') pathname = '/' + pathname;
  } else if (!host) {
    host = '';
  }

  if (hash && hash.charAt(0) !== '#') hash = '#' + hash;
  if (search && search.charAt(0) !== '?') search = '?' + search;
  pathname = pathname.replace(/[?#]/g, function (match) {
    return encodeURIComponent(match);
  });
  search = search.replace('#', '%23');
  return protocol + host + pathname + search + hash;
};

function urlResolve(source, relative) {
  return urlParse(source, false, true).resolve(relative);
}

Url.prototype.resolve = function (relative) {
  return this.resolveObject(urlParse(relative, false, true)).format();
};

function urlResolveObject(source, relative) {
  if (!source) return relative;
  return urlParse(source, false, true).resolveObject(relative);
}

Url.prototype.resolveObject = function (relative) {
  if (util.isString(relative)) {
    var rel = new Url();
    rel.parse(relative, false, true);
    relative = rel;
  }

  var result = new Url();
  var tkeys = Object.keys(this);

  for (var tk = 0; tk < tkeys.length; tk++) {
    var tkey = tkeys[tk];
    result[tkey] = this[tkey];
  } // hash is always overridden, no matter what.
  // even href="" will remove it.


  result.hash = relative.hash; // if the relative url is empty, then there's nothing left to do here.

  if (relative.href === '') {
    result.href = result.format();
    return result;
  } // hrefs like //foo/bar always cut to the protocol.


  if (relative.slashes && !relative.protocol) {
    // take everything except the protocol from relative
    var rkeys = Object.keys(relative);

    for (var rk = 0; rk < rkeys.length; rk++) {
      var rkey = rkeys[rk];
      if (rkey !== 'protocol') result[rkey] = relative[rkey];
    } //urlParse appends trailing / to urls like http://www.example.com


    if (slashedProtocol[result.protocol] && result.hostname && !result.pathname) {
      result.path = result.pathname = '/';
    }

    result.href = result.format();
    return result;
  }

  if (relative.protocol && relative.protocol !== result.protocol) {
    // if it's a known url protocol, then changing
    // the protocol does weird things
    // first, if it's not file:, then we MUST have a host,
    // and if there was a path
    // to begin with, then we MUST have a path.
    // if it is file:, then the host is dropped,
    // because that's known to be hostless.
    // anything else is assumed to be absolute.
    if (!slashedProtocol[relative.protocol]) {
      var keys = Object.keys(relative);

      for (var v = 0; v < keys.length; v++) {
        var k = keys[v];
        result[k] = relative[k];
      }

      result.href = result.format();
      return result;
    }

    result.protocol = relative.protocol;

    if (!relative.host && !hostlessProtocol[relative.protocol]) {
      var relPath = (relative.pathname || '').split('/');

      while (relPath.length && !(relative.host = relPath.shift())) {
        ;
      }

      if (!relative.host) relative.host = '';
      if (!relative.hostname) relative.hostname = '';
      if (relPath[0] !== '') relPath.unshift('');
      if (relPath.length < 2) relPath.unshift('');
      result.pathname = relPath.join('/');
    } else {
      result.pathname = relative.pathname;
    }

    result.search = relative.search;
    result.query = relative.query;
    result.host = relative.host || '';
    result.auth = relative.auth;
    result.hostname = relative.hostname || relative.host;
    result.port = relative.port; // to support http.request

    if (result.pathname || result.search) {
      var p = result.pathname || '';
      var s = result.search || '';
      result.path = p + s;
    }

    result.slashes = result.slashes || relative.slashes;
    result.href = result.format();
    return result;
  }

  var isSourceAbs = result.pathname && result.pathname.charAt(0) === '/',
      isRelAbs = relative.host || relative.pathname && relative.pathname.charAt(0) === '/',
      mustEndAbs = isRelAbs || isSourceAbs || result.host && relative.pathname,
      removeAllDots = mustEndAbs,
      srcPath = result.pathname && result.pathname.split('/') || [],
      relPath = relative.pathname && relative.pathname.split('/') || [],
      psychotic = result.protocol && !slashedProtocol[result.protocol]; // if the url is a non-slashed url, then relative
  // links like ../.. should be able
  // to crawl up to the hostname, as well.  This is strange.
  // result.protocol has already been set by now.
  // Later on, put the first path part into the host field.

  if (psychotic) {
    result.hostname = '';
    result.port = null;

    if (result.host) {
      if (srcPath[0] === '') srcPath[0] = result.host;else srcPath.unshift(result.host);
    }

    result.host = '';

    if (relative.protocol) {
      relative.hostname = null;
      relative.port = null;

      if (relative.host) {
        if (relPath[0] === '') relPath[0] = relative.host;else relPath.unshift(relative.host);
      }

      relative.host = null;
    }

    mustEndAbs = mustEndAbs && (relPath[0] === '' || srcPath[0] === '');
  }

  if (isRelAbs) {
    // it's absolute.
    result.host = relative.host || relative.host === '' ? relative.host : result.host;
    result.hostname = relative.hostname || relative.hostname === '' ? relative.hostname : result.hostname;
    result.search = relative.search;
    result.query = relative.query;
    srcPath = relPath; // fall through to the dot-handling below.
  } else if (relPath.length) {
    // it's relative
    // throw away the existing file, and take the new path instead.
    if (!srcPath) srcPath = [];
    srcPath.pop();
    srcPath = srcPath.concat(relPath);
    result.search = relative.search;
    result.query = relative.query;
  } else if (!util.isNullOrUndefined(relative.search)) {
    // just pull out the search.
    // like href='?foo'.
    // Put this after the other two cases because it simplifies the booleans
    if (psychotic) {
      result.hostname = result.host = srcPath.shift(); //occationaly the auth can get stuck only in host
      //this especially happens in cases like
      //url.resolveObject('mailto:local1@domain1', 'local2@domain2')

      var authInHost = result.host && result.host.indexOf('@') > 0 ? result.host.split('@') : false;

      if (authInHost) {
        result.auth = authInHost.shift();
        result.host = result.hostname = authInHost.shift();
      }
    }

    result.search = relative.search;
    result.query = relative.query; //to support http.request

    if (!util.isNull(result.pathname) || !util.isNull(result.search)) {
      result.path = (result.pathname ? result.pathname : '') + (result.search ? result.search : '');
    }

    result.href = result.format();
    return result;
  }

  if (!srcPath.length) {
    // no path at all.  easy.
    // we've already handled the other stuff above.
    result.pathname = null; //to support http.request

    if (result.search) {
      result.path = '/' + result.search;
    } else {
      result.path = null;
    }

    result.href = result.format();
    return result;
  } // if a url ENDs in . or .., then it must get a trailing slash.
  // however, if it ends in anything else non-slashy,
  // then it must NOT get a trailing slash.


  var last = srcPath.slice(-1)[0];
  var hasTrailingSlash = (result.host || relative.host || srcPath.length > 1) && (last === '.' || last === '..') || last === ''; // strip single dots, resolve double dots to parent dir
  // if the path tries to go above the root, `up` ends up > 0

  var up = 0;

  for (var i = srcPath.length; i >= 0; i--) {
    last = srcPath[i];

    if (last === '.') {
      srcPath.splice(i, 1);
    } else if (last === '..') {
      srcPath.splice(i, 1);
      up++;
    } else if (up) {
      srcPath.splice(i, 1);
      up--;
    }
  } // if the path is allowed to go above the root, restore leading ..s


  if (!mustEndAbs && !removeAllDots) {
    for (; up--; up) {
      srcPath.unshift('..');
    }
  }

  if (mustEndAbs && srcPath[0] !== '' && (!srcPath[0] || srcPath[0].charAt(0) !== '/')) {
    srcPath.unshift('');
  }

  if (hasTrailingSlash && srcPath.join('/').substr(-1) !== '/') {
    srcPath.push('');
  }

  var isAbsolute = srcPath[0] === '' || srcPath[0] && srcPath[0].charAt(0) === '/'; // put the host back

  if (psychotic) {
    result.hostname = result.host = isAbsolute ? '' : srcPath.length ? srcPath.shift() : ''; //occationaly the auth can get stuck only in host
    //this especially happens in cases like
    //url.resolveObject('mailto:local1@domain1', 'local2@domain2')

    var authInHost = result.host && result.host.indexOf('@') > 0 ? result.host.split('@') : false;

    if (authInHost) {
      result.auth = authInHost.shift();
      result.host = result.hostname = authInHost.shift();
    }
  }

  mustEndAbs = mustEndAbs || result.host && srcPath.length;

  if (mustEndAbs && !isAbsolute) {
    srcPath.unshift('');
  }

  if (!srcPath.length) {
    result.pathname = null;
    result.path = null;
  } else {
    result.pathname = srcPath.join('/');
  } //to support request.http


  if (!util.isNull(result.pathname) || !util.isNull(result.search)) {
    result.path = (result.pathname ? result.pathname : '') + (result.search ? result.search : '');
  }

  result.auth = relative.auth || result.auth;
  result.slashes = result.slashes || relative.slashes;
  result.href = result.format();
  return result;
};

Url.prototype.parseHost = function () {
  var host = this.host;
  var port = portPattern.exec(host);

  if (port) {
    port = port[0];

    if (port !== ':') {
      this.port = port.substr(1);
    }

    host = host.substr(0, host.length - port.length);
  }

  if (host) this.hostname = host;
};

},{"./util":394,"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/helpers/typeof":73,"core-js/modules/es.array.concat":234,"core-js/modules/es.array.index-of":241,"core-js/modules/es.array.join":243,"core-js/modules/es.array.last-index-of":244,"core-js/modules/es.array.slice":246,"core-js/modules/es.array.splice":248,"core-js/modules/es.object.keys":253,"core-js/modules/es.regexp.exec":256,"core-js/modules/es.string.match":260,"core-js/modules/es.string.replace":261,"core-js/modules/es.string.search":262,"core-js/modules/es.string.split":263,"core-js/modules/es.string.trim":264,"punycode":319,"querystring":322}],394:[function(require,module,exports){
'use strict';

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _typeof2 = _interopRequireDefault(require("@babel/runtime/helpers/typeof"));

module.exports = {
  isString: function isString(arg) {
    return typeof arg === 'string';
  },
  isObject: function isObject(arg) {
    return (0, _typeof2.default)(arg) === 'object' && arg !== null;
  },
  isNull: function isNull(arg) {
    return arg === null;
  },
  isNullOrUndefined: function isNullOrUndefined(arg) {
    return arg == null;
  }
};

},{"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/helpers/typeof":73}],395:[function(require,module,exports){
"use strict";

require("core-js/modules/es.number.constructor");

// copy from https://github.com/node-modules/utility for browser
exports.encodeURIComponent = function (text) {
  try {
    return encodeURIComponent(text);
  } catch (e) {
    return text;
  }
};

exports.escape = require('escape-html');

exports.timestamp = function timestamp(t) {
  if (t) {
    var v = t;

    if (typeof v === 'string') {
      v = Number(v);
    }

    if (String(t).length === 10) {
      v *= 1000;
    }

    return new Date(v);
  }

  return Math.round(Date.now() / 1000);
};

},{"core-js/modules/es.number.constructor":250,"escape-html":295}],396:[function(require,module,exports){
(function (process,Buffer){
'use strict';

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

require("core-js/modules/es.array.concat");

require("core-js/modules/es.array.index-of");

require("core-js/modules/es.function.name");

require("core-js/modules/es.object.to-string");

require("core-js/modules/es.promise");

require("core-js/modules/es.regexp.exec");

require("core-js/modules/es.string.split");

require("core-js/modules/es.string.trim");

var _typeof2 = _interopRequireDefault(require("@babel/runtime/helpers/typeof"));

var util = require('util');

var urlutil = require('url');

var http = require('http');

var https = require('https');

var debug = require('debug')('urllib');

var ms = require('humanize-ms');

var REQUEST_ID = 0;
var MAX_VALUE = Math.pow(2, 31) - 10;
var PROTO_RE = /^https?:\/\//i;

function getAgent(agent, defaultAgent) {
  return agent === undefined ? defaultAgent : agent;
}

function parseContentType(str) {
  if (!str) {
    return '';
  }

  return str.split(';')[0].trim().toLowerCase();
}

function makeCallback(resolve, reject) {
  return function (err, data, res) {
    if (err) {
      return reject(err);
    }

    resolve({
      data: data,
      status: res.statusCode,
      headers: res.headers,
      res: res
    });
  };
} // exports.TIMEOUT = ms('5s');


exports.TIMEOUTS = [ms('300s'), ms('300s')];
var TEXT_DATA_TYPES = ['json', 'text'];

exports.request = function request(url, args, callback) {
  // request(url, callback)
  if (arguments.length === 2 && typeof args === 'function') {
    callback = args;
    args = null;
  }

  if (typeof callback === 'function') {
    return exports.requestWithCallback(url, args, callback);
  }

  return new Promise(function (resolve, reject) {
    exports.requestWithCallback(url, args, makeCallback(resolve, reject));
  });
};

exports.requestWithCallback = function requestWithCallback(url, args, callback) {
  if (!url || typeof url !== 'string' && (0, _typeof2.default)(url) !== 'object') {
    var msg = util.format('expect request url to be a string or a http request options, but got' + ' %j', url);
    throw new Error(msg);
  }

  if (arguments.length === 2 && typeof args === 'function') {
    callback = args;
    args = null;
  }

  args = args || {};

  if (REQUEST_ID >= MAX_VALUE) {
    REQUEST_ID = 0;
  }

  var reqId = ++REQUEST_ID;
  args.requestUrls = args.requestUrls || [];
  var reqMeta = {
    requestId: reqId,
    url: url,
    args: args,
    ctx: args.ctx
  };

  if (args.emitter) {
    args.emitter.emit('request', reqMeta);
  }

  args.timeout = args.timeout || exports.TIMEOUTS;
  args.maxRedirects = args.maxRedirects || 10;
  args.streaming = args.streaming || args.customResponse;
  var requestStartTime = Date.now();
  var parsedUrl;

  if (typeof url === 'string') {
    if (!PROTO_RE.test(url)) {
      // Support `request('www.server.com')`
      url = 'https://' + url;
    }

    parsedUrl = urlutil.parse(url);
  } else {
    parsedUrl = url;
  }

  var method = (args.type || args.method || parsedUrl.method || 'GET').toUpperCase();
  var port = parsedUrl.port || 80;
  var httplib = http;
  var agent = getAgent(args.agent, exports.agent);
  var fixJSONCtlChars = args.fixJSONCtlChars;

  if (parsedUrl.protocol === 'https:') {
    httplib = https;
    agent = getAgent(args.httpsAgent, exports.httpsAgent);

    if (!parsedUrl.port) {
      port = 443;
    }
  } // request through proxy tunnel
  // var proxyTunnelAgent = detectProxyAgent(parsedUrl, args);
  // if (proxyTunnelAgent) {
  //   agent = proxyTunnelAgent;
  // }


  var options = {
    host: parsedUrl.hostname || parsedUrl.host || 'localhost',
    path: parsedUrl.path || '/',
    method: method,
    port: port,
    agent: agent,
    headers: args.headers || {},
    // default is dns.lookup
    // https://github.com/nodejs/node/blob/master/lib/net.js#L986
    // custom dnslookup require node >= 4.0.0
    // https://github.com/nodejs/node/blob/archived-io.js-v0.12/lib/net.js#L952
    lookup: args.lookup
  };

  if (Array.isArray(args.timeout)) {
    options.requestTimeout = args.timeout[args.timeout.length - 1];
  } else if (typeof args.timeout !== 'undefined') {
    options.requestTimeout = args.timeout;
  } // const sslNames = [
  //   'pfx',
  //   'key',
  //   'passphrase',
  //   'cert',
  //   'ca',
  //   'ciphers',
  //   'rejectUnauthorized',
  //   'secureProtocol',
  //   'secureOptions',
  // ];
  // for (let i = 0; i < sslNames.length; i++) {
  //   const name = sslNames[i];
  //   if (args.hasOwnProperty(name)) {
  //     options[name] = args[name];
  //   }
  // }
  // don't check ssl
  // if (options.rejectUnauthorized === false && !options.hasOwnProperty('secureOptions')) {
  //   options.secureOptions = require('constants').SSL_OP_NO_TLSv1_2;
  // }


  var auth = args.auth || parsedUrl.auth;

  if (auth) {
    options.auth = auth;
  } // content undefined  data 有值


  var body = args.content || args.data;
  var dataAsQueryString = method === 'GET' || method === 'HEAD' || args.dataAsQueryString;

  if (!args.content) {
    if (body && !(typeof body === 'string' || Buffer.isBuffer(body))) {
      if (dataAsQueryString) {
        // read: GET, HEAD, use query string
        body = args.nestedQuerystring ? qs.stringify(body) : querystring.stringify(body);
      } else {
        var contentType = options.headers['Content-Type'] || options.headers['content-type']; // auto add application/x-www-form-urlencoded when using urlencode form request

        if (!contentType) {
          if (args.contentType === 'json') {
            contentType = 'application/json';
          } else {
            contentType = 'application/x-www-form-urlencoded';
          }

          options.headers['Content-Type'] = contentType;
        }

        if (parseContentType(contentType) === 'application/json') {
          body = JSON.stringify(body);
        } else {
          // 'application/x-www-form-urlencoded'
          body = args.nestedQuerystring ? qs.stringify(body) : querystring.stringify(body);
        }
      }
    }
  } // if it's a GET or HEAD request, data should be sent as query string


  if (dataAsQueryString && body) {
    options.path += (parsedUrl.query ? '&' : '?') + body;
    body = null;
  }

  var requestSize = 0;

  if (body) {
    var length = body.length;

    if (!Buffer.isBuffer(body)) {
      length = Buffer.byteLength(body);
    }

    requestSize = options.headers['Content-Length'] = length;
  }

  if (args.dataType === 'json') {
    options.headers.Accept = 'application/json';
  }

  if (typeof args.beforeRequest === 'function') {
    // you can use this hook to change every thing.
    args.beforeRequest(options);
  }

  var connectTimer = null;
  var responseTimer = null;
  var __err = null;
  var connected = false; // socket connected or not

  var keepAliveSocket = false; // request with keepalive socket

  var responseSize = 0;
  var statusCode = -1;
  var responseAborted = false;
  var remoteAddress = '';
  var remotePort = '';
  var timing = null;

  if (args.timing) {
    timing = {
      // socket assigned
      queuing: 0,
      // dns lookup time
      dnslookup: 0,
      // socket connected
      connected: 0,
      // request sent
      requestSent: 0,
      // Time to first byte (TTFB)
      waiting: 0,
      contentDownload: 0
    };
  }

  function cancelConnectTimer() {
    if (connectTimer) {
      clearTimeout(connectTimer);
      connectTimer = null;
    }
  }

  function cancelResponseTimer() {
    if (responseTimer) {
      clearTimeout(responseTimer);
      responseTimer = null;
    }
  }

  function done(err, data, res) {
    cancelResponseTimer();

    if (!callback) {
      console.warn('[urllib:warn] [%s] [%s] [worker:%s] %s %s callback twice!!!', Date(), reqId, process.pid, options.method, url); // https://github.com/node-modules/urllib/pull/30

      if (err) {
        console.warn('[urllib:warn] [%s] [%s] [worker:%s] %s: %s\nstack: %s', Date(), reqId, process.pid, err.name, err.message, err.stack);
      }

      return;
    }

    var cb = callback;
    callback = null;
    var headers = {};

    if (res) {
      statusCode = res.statusCode;
      headers = res.headers;
    } // handle digest auth
    // if (statusCode === 401 && headers['www-authenticate']
    //   && (!args.headers || !args.headers.Authorization) && args.digestAuth) {
    //   const authenticate = headers['www-authenticate'];
    //   if (authenticate.indexOf('Digest ') >= 0) {
    //     debug('Request#%d %s: got digest auth header WWW-Authenticate: %s', reqId, url, authenticate);
    //     args.headers = args.headers || {};
    //     args.headers.Authorization = digestAuthHeader(options.method, options.path, authenticate, args.digestAuth);
    //     debug('Request#%d %s: auth with digest header: %s', reqId, url, args.headers.Authorization);
    //     if (res.headers['set-cookie']) {
    //       args.headers.Cookie = res.headers['set-cookie'].join(';');
    //     }
    //     return exports.requestWithCallback(url, args, cb);
    //   }
    // }


    var requestUseTime = Date.now() - requestStartTime;

    if (timing) {
      timing.contentDownload = requestUseTime;
    }

    debug('[%sms] done, %s bytes HTTP %s %s %s %s, keepAliveSocket: %s, timing: %j', requestUseTime, responseSize, statusCode, options.method, options.host, options.path, keepAliveSocket, timing);
    var response = {
      status: statusCode,
      statusCode: statusCode,
      headers: headers,
      size: responseSize,
      aborted: responseAborted,
      rt: requestUseTime,
      keepAliveSocket: keepAliveSocket,
      data: data,
      requestUrls: args.requestUrls,
      timing: timing,
      remoteAddress: remoteAddress,
      remotePort: remotePort
    };

    if (err) {
      var agentStatus = '';

      if (agent && typeof agent.getCurrentStatus === 'function') {
        // add current agent status to error message for logging and debug
        agentStatus = ', agent status: ' + JSON.stringify(agent.getCurrentStatus());
      }

      err.message += ', ' + options.method + ' ' + url + ' ' + statusCode + ' (connected: ' + connected + ', keepalive socket: ' + keepAliveSocket + agentStatus + ')' + '\nheaders: ' + JSON.stringify(headers);
      err.data = data;
      err.path = options.path;
      err.status = statusCode;
      err.headers = headers;
      err.res = response;
    }

    cb(err, data, args.streaming ? res : response);

    if (args.emitter) {
      // keep to use the same reqMeta object on request event before
      reqMeta.url = url;
      reqMeta.socket = req && req.connection;
      reqMeta.options = options;
      reqMeta.size = requestSize;
      args.emitter.emit('response', {
        requestId: reqId,
        error: err,
        ctx: args.ctx,
        req: reqMeta,
        res: response
      });
    }
  }

  function handleRedirect(res) {
    var err = null;

    if (args.followRedirect && statuses.redirect[res.statusCode]) {
      // handle redirect
      args._followRedirectCount = (args._followRedirectCount || 0) + 1;
      var location = res.headers.location;

      if (!location) {
        err = new Error('Got statusCode ' + res.statusCode + ' but cannot resolve next location from headers');
        err.name = 'FollowRedirectError';
      } else if (args._followRedirectCount > args.maxRedirects) {
        err = new Error('Exceeded maxRedirects. Probably stuck in a redirect loop ' + url);
        err.name = 'MaxRedirectError';
      } else {
        var newUrl = args.formatRedirectUrl ? args.formatRedirectUrl(url, location) : urlutil.resolve(url, location);
        debug('Request#%d %s: `redirected` from %s to %s', reqId, options.path, url, newUrl); // make sure timer stop

        cancelResponseTimer(); // should clean up headers.Host on `location: http://other-domain/url`

        if (args.headers && args.headers.Host && PROTO_RE.test(location)) {
          args.headers.Host = null;
        } // avoid done will be execute in the future change.


        var cb = callback;
        callback = null;
        exports.requestWithCallback(newUrl, args, cb);
        return {
          redirect: true,
          error: null
        };
      }
    }

    return {
      redirect: false,
      error: err
    };
  }

  if (args.gzip) {
    if (!options.headers['Accept-Encoding'] && !options.headers['accept-encoding']) {
      options.headers['Accept-Encoding'] = 'gzip';
    }
  }

  function decodeContent(res, body, cb) {
    var encoding = res.headers['content-encoding']; // if (body.length === 0) {
    //   return cb(null, body, encoding);
    // }
    // if (!encoding || encoding.toLowerCase() !== 'gzip') {

    return cb(null, body, encoding); // }
    // debug('gunzip %d length body', body.length);
    // zlib.gunzip(body, cb);
  }

  var writeStream = args.writeStream;
  debug('Request#%d %s %s with headers %j, options.path: %s', reqId, method, url, options.headers, options.path);
  args.requestUrls.push(url);

  function onResponse(res) {
    if (timing) {
      timing.waiting = Date.now() - requestStartTime;
    }

    debug('Request#%d %s `req response` event emit: status %d, headers: %j', reqId, url, res.statusCode, res.headers);

    if (args.streaming) {
      var result = handleRedirect(res);

      if (result.redirect) {
        res.resume();
        return;
      }

      if (result.error) {
        res.resume();
        return done(result.error, null, res);
      }

      return done(null, null, res);
    }

    res.on('close', function () {
      debug('Request#%d %s: `res close` event emit, total size %d', reqId, url, responseSize);
    });
    res.on('error', function () {
      debug('Request#%d %s: `res error` event emit, total size %d', reqId, url, responseSize);
    });
    res.on('aborted', function () {
      responseAborted = true;
      debug('Request#%d %s: `res aborted` event emit, total size %d', reqId, url, responseSize);
    });

    if (writeStream) {
      // If there's a writable stream to recieve the response data, just pipe the
      // response stream to that writable stream and call the callback when it has
      // finished writing.
      //
      // NOTE that when the response stream `res` emits an 'end' event it just
      // means that it has finished piping data to another stream. In the
      // meanwhile that writable stream may still writing data to the disk until
      // it emits a 'close' event.
      //
      // That means that we should not apply callback until the 'close' of the
      // writable stream is emited.
      //
      // See also:
      // - https://github.com/TBEDP/urllib/commit/959ac3365821e0e028c231a5e8efca6af410eabb
      // - http://nodejs.org/api/stream.html#stream_event_end
      // - http://nodejs.org/api/stream.html#stream_event_close_1
      var _result = handleRedirect(res);

      if (_result.redirect) {
        res.resume();
        return;
      }

      if (_result.error) {
        res.resume(); // end ths stream first

        writeStream.end();
        return done(_result.error, null, res);
      } // you can set consumeWriteStream false that only wait response end


      if (args.consumeWriteStream === false) {
        res.on('end', done.bind(null, null, null, res));
      } else {
        // node 0.10, 0.12: only emit res aborted, writeStream close not fired
        // if (isNode010 || isNode012) {
        //   first([
        //     [ writeStream, 'close' ],
        //     [ res, 'aborted' ],
        //   ], function(_, stream, event) {
        //     debug('Request#%d %s: writeStream or res %s event emitted', reqId, url, event);
        //     done(__err || null, null, res);
        //   });
        if (false) {} else {
          writeStream.on('close', function () {
            debug('Request#%d %s: writeStream close event emitted', reqId, url);
            done(__err || null, null, res);
          });
        }
      }

      return res.pipe(writeStream);
    } // Otherwise, just concat those buffers.
    //
    // NOTE that the `chunk` is not a String but a Buffer. It means that if
    // you simply concat two chunk with `+` you're actually converting both
    // Buffers into Strings before concating them. It'll cause problems when
    // dealing with multi-byte characters.
    //
    // The solution is to store each chunk in an array and concat them with
    // 'buffer-concat' when all chunks is recieved.
    //
    // See also:
    // http://cnodejs.org/topic/4faf65852e8fb5bc65113403


    var chunks = [];
    res.on('data', function (chunk) {
      debug('Request#%d %s: `res data` event emit, size %d', reqId, url, chunk.length);
      responseSize += chunk.length;
      chunks.push(chunk);
    });
    res.on('end', function () {
      var body = Buffer.concat(chunks, responseSize);
      debug('Request#%d %s: `res end` event emit, total size %d, _dumped: %s', reqId, url, responseSize, res._dumped);

      if (__err) {
        // req.abort() after `res data` event emit.
        return done(__err, body, res);
      }

      var result = handleRedirect(res);

      if (result.error) {
        return done(result.error, body, res);
      }

      if (result.redirect) {
        return;
      }

      decodeContent(res, body, function (err, data, encoding) {
        if (err) {
          return done(err, body, res);
        } // if body not decode, dont touch it


        if (!encoding && TEXT_DATA_TYPES.indexOf(args.dataType) >= 0) {
          // try to decode charset
          try {
            data = decodeBodyByCharset(data, res);
          } catch (e) {
            debug('decodeBodyByCharset error: %s', e); // if error, dont touch it

            return done(null, data, res);
          }

          if (args.dataType === 'json') {
            if (responseSize === 0) {
              data = null;
            } else {
              var r = parseJSON(data, fixJSONCtlChars);

              if (r.error) {
                err = r.error;
              } else {
                data = r.data;
              }
            }
          }
        }

        if (responseAborted) {
          // err = new Error('Remote socket was terminated before `response.end()` was called');
          // err.name = 'RemoteSocketClosedError';
          debug('Request#%d %s: Remote socket was terminated before `response.end()` was called', reqId, url);
        }

        done(err, data, res);
      });
    });
  }

  var connectTimeout, responseTimeout;

  if (Array.isArray(args.timeout)) {
    connectTimeout = ms(args.timeout[0]);
    responseTimeout = ms(args.timeout[1]);
  } else {
    // set both timeout equal
    connectTimeout = responseTimeout = ms(args.timeout);
  }

  debug('ConnectTimeout: %d, ResponseTimeout: %d', connectTimeout, responseTimeout);

  function startConnectTimer() {
    debug('Connect timer ticking, timeout: %d', connectTimeout);
    connectTimer = setTimeout(function () {
      connectTimer = null;

      if (statusCode === -1) {
        statusCode = -2;
      }

      var msg = 'Connect timeout for ' + connectTimeout + 'ms';
      var errorName = 'ConnectionTimeoutError';

      if (!req.socket) {
        errorName = 'SocketAssignTimeoutError';
        msg += ', working sockets is full';
      }

      __err = new Error(msg);
      __err.name = errorName;
      __err.requestId = reqId;
      debug('ConnectTimeout: Request#%d %s %s: %s, connected: %s', reqId, url, __err.name, msg, connected);
      abortRequest();
    }, connectTimeout);
  }

  function startResposneTimer() {
    debug('Response timer ticking, timeout: %d', responseTimeout);
    responseTimer = setTimeout(function () {
      responseTimer = null;
      var msg = 'Response timeout for ' + responseTimeout + 'ms';
      var errorName = 'ResponseTimeoutError';
      __err = new Error(msg);
      __err.name = errorName;
      __err.requestId = reqId;
      debug('ResponseTimeout: Request#%d %s %s: %s, connected: %s', reqId, url, __err.name, msg, connected);
      abortRequest();
    }, responseTimeout);
  }

  var req; // request headers checker will throw error

  options.mode = args.mode ? args.mode : '';

  try {
    req = httplib.request(options, onResponse);
  } catch (err) {
    return done(err);
  } // environment detection: browser or nodejs


  if (typeof window === 'undefined') {
    // start connect timer just after `request` return, and just in nodejs environment
    startConnectTimer();
  } else {
    req.on('requestTimeout', function () {
      if (statusCode === -1) {
        statusCode = -2;
      }

      var msg = 'Connect timeout for ' + connectTimeout + 'ms';
      var errorName = 'ConnectionTimeoutError';
      __err = new Error(msg);
      __err.name = errorName;
      __err.requestId = reqId;
      abortRequest();
    });
  }

  function abortRequest() {
    debug('Request#%d %s abort, connected: %s', reqId, url, connected); // it wont case error event when req haven't been assigned a socket yet.

    if (!req.socket) {
      __err.noSocket = true;
      done(__err);
    }

    req.abort();
  }

  if (timing) {
    // request sent
    req.on('finish', function () {
      timing.requestSent = Date.now() - requestStartTime;
    });
  }

  req.once('socket', function (socket) {
    if (timing) {
      // socket queuing time
      timing.queuing = Date.now() - requestStartTime;
    } // https://github.com/nodejs/node/blob/master/lib/net.js#L377
    // https://github.com/nodejs/node/blob/v0.10.40-release/lib/net.js#L352
    // should use socket.socket on 0.10.x
    // if (isNode010 && socket.socket) {
    //   socket = socket.socket;
    // }


    var readyState = socket.readyState;

    if (readyState === 'opening') {
      socket.once('lookup', function (err, ip, addressType) {
        debug('Request#%d %s lookup: %s, %s, %s', reqId, url, err, ip, addressType);

        if (timing) {
          timing.dnslookup = Date.now() - requestStartTime;
        }

        if (ip) {
          remoteAddress = ip;
        }
      });
      socket.once('connect', function () {
        if (timing) {
          // socket connected
          timing.connected = Date.now() - requestStartTime;
        } // cancel socket timer at first and start tick for TTFB


        cancelConnectTimer();
        startResposneTimer();
        debug('Request#%d %s new socket connected', reqId, url);
        connected = true;

        if (!remoteAddress) {
          remoteAddress = socket.remoteAddress;
        }

        remotePort = socket.remotePort;
      });
      return;
    }

    debug('Request#%d %s reuse socket connected, readyState: %s', reqId, url, readyState);
    connected = true;
    keepAliveSocket = true;

    if (!remoteAddress) {
      remoteAddress = socket.remoteAddress;
    }

    remotePort = socket.remotePort; // reuse socket, timer should be canceled.

    cancelConnectTimer();
    startResposneTimer();
  });
  req.on('error', function (err) {
    //TypeError for browser fetch api, Error for browser xmlhttprequest api
    if (err.name === 'Error' || err.name === 'TypeError') {
      err.name = connected ? 'ResponseError' : 'RequestError';
    }

    err.message += ' (req "error")';
    debug('Request#%d %s `req error` event emit, %s: %s', reqId, url, err.name, err.message);
    done(__err || err);
  });

  if (writeStream) {
    writeStream.once('error', function (err) {
      err.message += ' (writeStream "error")';
      __err = err;
      debug('Request#%d %s `writeStream error` event emit, %s: %s', reqId, url, err.name, err.message);
      abortRequest();
    });
  }

  if (args.stream) {
    args.stream.pipe(req);
    args.stream.once('error', function (err) {
      err.message += ' (stream "error")';
      __err = err;
      debug('Request#%d %s `readStream error` event emit, %s: %s', reqId, url, err.name, err.message);
      abortRequest();
    });
  } else {
    req.end(body);
  }

  req.requestId = reqId;
  return req;
};

}).call(this,require('_process'),require("buffer").Buffer)
},{"@babel/runtime/helpers/interopRequireDefault":72,"@babel/runtime/helpers/typeof":73,"_process":392,"buffer":99,"core-js/modules/es.array.concat":234,"core-js/modules/es.array.index-of":241,"core-js/modules/es.function.name":249,"core-js/modules/es.object.to-string":254,"core-js/modules/es.promise":255,"core-js/modules/es.regexp.exec":256,"core-js/modules/es.string.split":263,"core-js/modules/es.string.trim":264,"debug":390,"http":80,"https":297,"humanize-ms":298,"url":393,"util":345}]},{},[1])(1)
});

