mk_framework/packages/hot-update-tools/node_modules/ali-oss/dist/aliyun-oss-sdk.js

// Aliyun OSS SDK for JavaScript v4.11.4
// 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 e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
'use strict';

var OSS = require('./browser/client');
OSS.Buffer = require('buffer').Buffer;
OSS.co = require('co');
OSS.urllib = require('../shims/xhr');

module.exports = OSS;

},{"../shims/xhr":229,"./browser/client":2,"buffer":31,"co":36}],2:[function(require,module,exports){
(function (process,Buffer){
'use strict';

var _regenerator = require('babel-runtime/regenerator');

var _regenerator2 = _interopRequireDefault(_regenerator);

var _keys = require('babel-runtime/core-js/object/keys');

var _keys2 = _interopRequireDefault(_keys);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var debug = require('debug')('ali-oss');
var crypto = require('./../../shims/crypto.js');
var path = require('path');
var copy = require('copy-to');
var mime = require('mime');
var xml = require('xml2js');
var ms = require('humanize-ms');
var AgentKeepalive = require('agentkeepalive');
var merge = require('merge-descriptors');
var urlutil = require('url');
var is = require('is-type-of');
var platform = require('platform');
var utility = require('utility');
var urllib = require('urllib');
var pkg = require('./version');
var dateFormat = require('dateformat');
var bowser = require('bowser');

var globalHttpAgent = new AgentKeepalive();

/**
 * Expose `Client`
 */

module.exports = Client;

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

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

  // 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.amendTimeSkewed = 0;
}

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

  var opts = {
    region: 'oss-cn-hangzhou',
    internal: false,
    secure: false,
    bucket: null,
    endpoint: null,
    cname: false
  };

  for (var key in options) {
    if (options[key] === undefined) continue;
    opts[key] = options[key];
  }
  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);
  } 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;
};

/**
 * prototype
 */

var proto = Client.prototype;

/**
 * Object operations
 */
merge(proto, require('./object'));
// /**
//  * Bucket operations
//  */
// merge(proto, require('./bucket'));
/**
 * Multipart operations
 */
merge(proto, require('./multipart'));

/**
 * ImageClient class
 */
// Client.ImageClient = require('./image')(Client);
// /**
//  * Cluster Client class
//  */
// Client.ClusterClient = require('./cluster')(Client);

/**
 * STS Client class
 */
// Client.STS = require('./sts');

/**
 * Aysnc wrapper
 */
Client.Wrapper = require('./wrapper');

/**
 * get OSS signature
 * @param {String} stringToSign
 * @return {String} the signature
 */
proto.signature = function signature(stringToSign) {
  debug('authorization stringToSign: %s', stringToSign);

  var signature = crypto.createHmac('sha1', this.options.accessKeySecret);
  signature = signature.update(new Buffer(stringToSign, 'utf8')).digest('base64');

  return signature;
};

/**
 * 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 params = [method.toUpperCase(), headers['Content-Md5'] || '', getHeader(headers, 'Content-Type'), headers['x-oss-date']];

  var ossHeaders = {};
  for (var key in headers) {
    var lkey = key.toLowerCase().trim();
    if (lkey.indexOf('x-oss-') === 0) {
      ossHeaders[lkey] = ossHeaders[lkey] || [];
      ossHeaders[lkey].push(String(headers[key]).trim());
    }
  }

  var ossHeadersList = [];
  (0, _keys2.default)(ossHeaders).sort().forEach(function (key) {
    ossHeadersList.push(key + ':' + ossHeaders[key].join(','));
  });

  params = params.concat(ossHeadersList);

  var resourceStr = '';
  resourceStr += resource;

  var subresList = [];
  if (subres) {
    if (is.string(subres)) {
      subresList.push(subres);
    } else if (is.array(subres)) {
      subresList = subresList.concat(subres);
    } else {
      for (var k in subres) {
        var item = subres[k] ? k + '=' + subres[k] : k;
        subresList.push(item);
      }
    }
  }

  if (subresList.length > 0) {
    subresList = subresList.sort(function (a, b) {
      return a > b;
    });
    resourceStr += '?' + subresList.join('&');
  }
  debug('CanonicalizedResource: %s', resourceStr);

  params.push(resourceStr);
  var stringToSign = params.join('\n');

  var auth = 'OSS ' + this.options.accessKeyId + ':';
  return auth + this.signature(stringToSign);
};

/**
 * create request params
 * See `request`
 * @api private
 */

proto.createRequest = function createRequest(params) {
  var headers = {
    'x-oss-date': dateFormat(+new Date() + this.amendTimeSkewed, 'UTC:ddd, dd mmm yyyy HH:MM:ss \'GMT\''),
    'x-oss-user-agent': this.userAgent,
    'User-Agent': this.userAgent
  };

  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 === mime.default_type) {
      params.mime = '';
    }

    if (params.mime && params.mime.indexOf('/') > 0) {
      headers['Content-Type'] = params.mime;
    } else {
      headers['Content-Type'] = mime.getType(params.mime || path.extname(params.object || '')) || 'application/octet-stream';
    }
  }

  if (params.content) {
    headers['Content-Md5'] = crypto.createHash('md5').update(new Buffer(params.content, 'utf8')).digest('base64');
    if (!headers['Content-Length']) {
      headers['Content-Length'] = params.content.length;
    }
  }

  var authResource = this._getResource(params);
  headers.authorization = this.authorization(params.method, authResource, params.subres, headers);

  var url = this._getReqUrl(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 = {
    agent: this.agent,
    method: params.method,
    content: params.content,
    stream: params.stream,
    headers: headers,
    timeout: timeout,
    writeStream: params.writeStream,
    customResponse: params.customResponse,
    ctx: params.ctx || this.ctx
  };

  return {
    url: url,
    params: reqParams
  };
};

/**
 * 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__*/_regenerator2.default.mark(function request(params) {
  var reqParams, result, reqErr, err;
  return _regenerator2.default.wrap(function request$(_context) {
    while (1) {
      switch (_context.prev = _context.next) {
        case 0:
          reqParams = this.createRequest(params);
          _context.prev = 1;
          _context.next = 4;
          return this.urllib.request(reqParams.url, reqParams.params);

        case 4:
          result = _context.sent;

          debug('response %s %s, got %s, headers: %j', params.method, reqParams.url, result.status, result.headers);
          _context.next = 11;
          break;

        case 8:
          _context.prev = 8;
          _context.t0 = _context['catch'](1);

          reqErr = _context.t0;

        case 11:
          if (!(result && params.successStatuses && params.successStatuses.indexOf(result.status) === -1)) {
            _context.next = 23;
            break;
          }

          _context.next = 14;
          return this.requestError(result);

        case 14:
          err = _context.sent;

          if (!(err.code === 'RequestTimeTooSkewed')) {
            _context.next = 20;
            break;
          }

          this.amendTimeSkewed = +new Date(err.serverTime) - new Date();
          _context.next = 19;
          return this.request(params);

        case 19:
          return _context.abrupt('return', _context.sent);

        case 20:
          err.params = params;
          _context.next = 27;
          break;

        case 23:
          if (!reqErr) {
            _context.next = 27;
            break;
          }

          _context.next = 26;
          return this.requestError(reqErr);

        case 26:
          err = _context.sent;

        case 27:
          if (!err) {
            _context.next = 29;
            break;
          }

          throw err;

        case 29:
          if (!params.xmlResponse) {
            _context.next = 33;
            break;
          }

          _context.next = 32;
          return this.parseXML(result.data);

        case 32:
          result.data = _context.sent;

        case 33:
          return _context.abrupt('return', result);

        case 34:
        case 'end':
          return _context.stop();
      }
    }
  }, request, this, [[1, 8]]);
});

proto._getResource = function _getResource(params) {
  var resource = '/';
  if (params.bucket) resource += params.bucket + '/';
  if (params.object) resource += params.object;

  return resource;
};

proto._isIP = function _isIP(host) {
  var ipv4Regex = /^(\d{1,3}\.){3,3}\d{1,3}$/;
  return ipv4Regex.test(host);
};

proto._escape = function _escape(name) {
  return utility.encodeURIComponent(name).replace(/%2F/g, '/');
};

proto._getReqUrl = function _getReqUrl(params) {
  var ep = {};
  copy(this.options.endpoint).to(ep);
  var isIP = this._isIP(ep.hostname);
  var isCname = this.options.cname;
  if (params.bucket && !isCname && !isIP) {
    ep.host = params.bucket + '.' + ep.host;
  }

  var path = '/';
  if (params.bucket && isIP) {
    path += params.bucket + '/';
  }

  if (params.object) {
    // Preserve '/' in result url
    path += this._escape(params.object);
  }
  ep.pathname = path;

  var query = {};
  if (params.query) {
    merge(query, params.query);
  }

  if (params.subres) {
    var subresAsQuery = {};
    if (is.string(params.subres)) {
      subresAsQuery[params.subres] = '';
    } else if (is.array(params.subres)) {
      params.subres.forEach(function (k) {
        subresAsQuery[k] = '';
      });
    } else {
      subresAsQuery = params.subres;
    }
    merge(query, subresAsQuery);
  }

  ep.query = query;

  // As '%20' is not recognized by OSS server, we must convert it to '+'.
  return urlutil.format(ep).replace(/%20/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-' + agent + '/' + pkg.version;
  var plat = platform.description;
  if (!plat && process) {
    plat = 'Node.js ' + process.version.slice(1) + ' on ' + process.platform + ' ' + process.arch;
  }

  return sdk + ' ' + plat;
};

/*
 * 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 function parseXML(done) {
    if (Buffer.isBuffer(str)) {
      str = str.toString();
    }
    xml.parseString(str, {
      explicitRoot: false,
      explicitArray: false
    }, done);
  };
};

/**
 * generater a request error with request response
 * @param {Object} result
 *
 * @api private
 */

proto.requestError = /*#__PURE__*/_regenerator2.default.mark(function requestError(result) {
  var err, message, info;
  return _regenerator2.default.wrap(function requestError$(_context2) {
    while (1) {
      switch (_context2.prev = _context2.next) {
        case 0:
          if (!(!result.data || !result.data.length)) {
            _context2.next = 4;
            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: ' + result.status);
              err.name = 'UnknowError';
              err.status = result.status;
            }
            err.requestId = result.headers['x-oss-request-id'];
            err.host = '';
          }
          _context2.next = 28;
          break;

        case 4:
          message = String(result.data);

          debug('request response error data: %s', message);

          _context2.prev = 6;
          _context2.next = 9;
          return this.parseXML(message) || {};

        case 9:
          info = _context2.sent;
          _context2.next = 19;
          break;

        case 12:
          _context2.prev = 12;
          _context2.t0 = _context2['catch'](6);

          debug(message);
          _context2.t0.message += '\nraw xml: ' + message;
          _context2.t0.status = result.status;
          _context2.t0.requestId = result.headers['x-oss-request-id'];
          return _context2.abrupt('return', _context2.t0);

        case 19:
          message = info.Message || 'unknow request error, status: ' + result.status;

          if (info.Condition) {
            message += ' (condition: ' + info.Condition + ')';
          }
          err = new Error(message);

          err.name = info.Code ? 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 28:

          debug('generate error %j', err);
          return _context2.abrupt('return', err);

        case 30:
        case 'end':
          return _context2.stop();
      }
    }
  }, requestError, this, [[6, 12]]);
});

function getHeader(headers, name) {
  return headers[name] || headers[name.toLowerCase()];
}

function setEndpoint(endpoint) {
  var url = urlutil.parse(endpoint);

  if (!url.protocol) {
    url = urlutil.parse('http://' + endpoint);
  }

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

  return url;
}

function setRegion(region, internal, secure) {
  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 urlutil.parse(protocol + region + suffix);
}

}).call(this,require('_process'),require("buffer").Buffer)
},{"./../../shims/crypto.js":226,"./multipart":3,"./object":4,"./version":5,"./wrapper":6,"_process":159,"agentkeepalive":7,"babel-runtime/core-js/object/keys":18,"babel-runtime/regenerator":27,"bowser":29,"buffer":31,"copy-to":38,"dateformat":141,"debug":142,"humanize-ms":147,"is-type-of":152,"merge-descriptors":154,"mime":227,"path":156,"platform":157,"url":191,"urllib":229,"utility":228,"xml2js":202}],3:[function(require,module,exports){
(function (Buffer){
'use strict';

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

var _from = require('babel-runtime/core-js/array/from');

var _from2 = _interopRequireDefault(_from);

var _regenerator = require('babel-runtime/regenerator');

var _regenerator2 = _interopRequireDefault(_regenerator);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var is = require('is-type-of');
// var destroy = require('destroy');
// var eoe = require('end-or-error');
var util = require('util');
var path = require('path');
var mime = require('mime');
var gather = require('co-gather');

var proto = exports;

/**
 * Multipart operations
 */

/**
 * Upload a file to OSS using multipart uploads
 * @param {String} name
 * @param {String|File} file
 * @param {Object} options
 */
proto.multipartUpload = /*#__PURE__*/_regenerator2.default.mark(function multipartUpload(name, file, options) {
  var minPartSize, filename, fileSize, stream, result, ret, uploadId, partSize, checkpoint;
  return _regenerator2.default.wrap(function multipartUpload$(_context) {
    while (1) {
      switch (_context.prev = _context.next) {
        case 0:
          options = options || {};

          if (!(options.checkpoint && options.checkpoint.uploadId)) {
            _context.next = 5;
            break;
          }

          _context.next = 4;
          return this._resumeMultipart(options.checkpoint, options);

        case 4:
          return _context.abrupt('return', _context.sent);

        case 5:
          minPartSize = 100 * 1024;
          filename = is.file(file) ? file.name : file;

          options.mime = options.mime || mime.getType(path.extname(filename));
          options.headers = options.headers || {};
          this._convertMetaToHeaders(options.meta, options.headers);

          _context.next = 12;
          return this._getFileSize(file);

        case 12:
          fileSize = _context.sent;

          if (!(fileSize < minPartSize)) {
            _context.next = 25;
            break;
          }

          stream = this._createStream(file, 0, fileSize);

          options.contentLength = fileSize;

          _context.next = 18;
          return this.putStream(name, stream, options);

        case 18:
          result = _context.sent;

          if (!(options && options.progress)) {
            _context.next = 22;
            break;
          }

          _context.next = 22;
          return options.progress(1);

        case 22:
          ret = {
            res: result.res,
            bucket: this.options.bucket,
            name: name,
            etag: result.res.headers.etag
          };

          if (options.headers && options.headers['x-oss-callback']) {
            ret.data = JSON.parse(result.data.toString());
          }
          return _context.abrupt('return', ret);

        case 25:
          if (!(options.partSize && options.partSize < minPartSize)) {
            _context.next = 27;
            break;
          }

          throw new Error('partSize must not be smaller than ' + minPartSize);

        case 27:
          _context.next = 29;
          return this._initMultipartUpload(name, options);

        case 29:
          result = _context.sent;
          uploadId = result.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 = 36;
            break;
          }

          _context.next = 36;
          return options.progress(0, checkpoint, result.res);

        case 36:
          _context.next = 38;
          return this._resumeMultipart(checkpoint, options);

        case 38:
          return _context.abrupt('return', _context.sent);

        case 39:
        case 'end':
          return _context.stop();
      }
    }
  }, multipartUpload, this);
});

/*
 * 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__*/_regenerator2.default.mark(function _resumeMultipart(checkpoint, options) {
  var file, fileSize, partSize, uploadId, doneParts, name, partOffs, numParts, uploadPartJob, all, done, todo, i, jobs, defaultParallel, parallel, results, error;
  return _regenerator2.default.wrap(function _resumeMultipart$(_context3) {
    while (1) {
      switch (_context3.prev = _context3.next) {
        case 0:
          file = checkpoint.file;
          fileSize = checkpoint.fileSize;
          partSize = checkpoint.partSize;
          uploadId = checkpoint.uploadId;
          doneParts = checkpoint.doneParts;
          name = checkpoint.name;
          partOffs = this._divideParts(fileSize, partSize);
          numParts = partOffs.length;
          uploadPartJob = /*#__PURE__*/_regenerator2.default.mark(function uploadPartJob(self, partNo) {
            var pi, data, result;
            return _regenerator2.default.wrap(function uploadPartJob$(_context2) {
              while (1) {
                switch (_context2.prev = _context2.next) {
                  case 0:
                    pi = partOffs[partNo - 1];
                    data = {
                      stream: self._createStream(file, pi.start, pi.end),
                      size: pi.end - pi.start
                    };
                    _context2.next = 4;
                    return self._uploadPart(name, uploadId, partNo, data);

                  case 4:
                    result = _context2.sent;

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

                    if (!(options && options.progress)) {
                      _context2.next = 10;
                      break;
                    }

                    _context2.next = 10;
                    return options.progress(doneParts.length / numParts, checkpoint, result.res);

                  case 10:
                  case 'end':
                    return _context2.stop();
                }
              }
            }, uploadPartJob, this);
          });
          all = (0, _from2.default)(new Array(numParts), function (x, i) {
            return i + 1;
          });
          done = doneParts.map(function (p) {
            return p.number;
          });
          todo = all.filter(function (p) {
            return done.indexOf(p) < 0;
          });

          if (!this.checkBrowserAndVersion('Internet Explorer', '10')) {
            _context3.next = 22;
            break;
          }

          i = 0;

        case 14:
          if (!(i < todo.length)) {
            _context3.next = 20;
            break;
          }

          _context3.next = 17;
          return uploadPartJob(this, todo[i]);

        case 17:
          i++;
          _context3.next = 14;
          break;

        case 20:
          _context3.next = 39;
          break;

        case 22:
          // upload in parallel
          jobs = [];

          for (i = 0; i < todo.length; i++) {
            jobs.push(uploadPartJob(this, todo[i]));
          }
          defaultParallel = 5;
          parallel = options.parallel || defaultParallel;
          _context3.next = 28;
          return gather(jobs, parallel);

        case 28:
          results = _context3.sent;
          i = 0;

        case 30:
          if (!(i < results.length)) {
            _context3.next = 39;
            break;
          }

          if (!results[i].isError) {
            _context3.next = 36;
            break;
          }

          error = results[i].error;

          error.partNum = i;
          error.message = 'Failed to upload some parts with error: ' + results[i].error.toString() + " part_num: " + i;
          throw error;

        case 36:
          i++;
          _context3.next = 30;
          break;

        case 39:
          _context3.next = 41;
          return this._completeMultipartUpload(name, uploadId, doneParts, options);

        case 41:
          return _context3.abrupt('return', _context3.sent);

        case 42:
        case 'end':
          return _context3.stop();
      }
    }
  }, _resumeMultipart, this);
});

/**
 * 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__*/_regenerator2.default.mark(function listUploads(query, options) {
  var params, result, uploads;
  return _regenerator2.default.wrap(function listUploads$(_context4) {
    while (1) {
      switch (_context4.prev = _context4.next) {
        case 0:
          options = options || {};
          options.subres = 'uploads';
          params = this._objectRequestParams('GET', '', options);

          params.query = query;
          params.xmlResponse = true;
          params.successStatuses = [200];

          _context4.next = 8;
          return this.request(params);

        case 8:
          result = _context4.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 _context4.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 13:
        case 'end':
          return _context4.stop();
      }
    }
  }, listUploads, this);
});

/**
 * Abort a multipart upload transaction
 * @param {String} name the object name
 * @param {String} uploadId the upload id
 * @param {Object} options
 */
proto.abortMultipartUpload = /*#__PURE__*/_regenerator2.default.mark(function abortMultipartUpload(name, uploadId, options) {
  var params, result;
  return _regenerator2.default.wrap(function abortMultipartUpload$(_context5) {
    while (1) {
      switch (_context5.prev = _context5.next) {
        case 0:
          options = options || {};
          options.subres = { uploadId: uploadId };
          params = this._objectRequestParams('DELETE', name, options);

          params.successStatuses = [204];

          _context5.next = 6;
          return this.request(params);

        case 6:
          result = _context5.sent;
          return _context5.abrupt('return', {
            res: result.res
          });

        case 8:
        case 'end':
          return _context5.stop();
      }
    }
  }, abortMultipartUpload, this);
});

/**
 * Initiate a multipart upload transaction
 * @param {String} name the object name
 * @param {Object} options
 * @return {String} upload id
 */
proto._initMultipartUpload = /*#__PURE__*/_regenerator2.default.mark(function _initMultipartUpload(name, options) {
  var params, result;
  return _regenerator2.default.wrap(function _initMultipartUpload$(_context6) {
    while (1) {
      switch (_context6.prev = _context6.next) {
        case 0:
          options = options || {};
          options.headers = options.headers || {};
          this._convertMetaToHeaders(options.meta, options.headers);

          options.subres = 'uploads';
          params = this._objectRequestParams('POST', name, options);

          params.mime = options.mime;
          params.xmlResponse = true;
          params.successStatuses = [200];

          _context6.next = 10;
          return this.request(params);

        case 10:
          result = _context6.sent;
          return _context6.abrupt('return', {
            res: result.res,
            bucket: result.data.Bucket,
            name: result.data.Key,
            uploadId: result.data.UploadId
          });

        case 12:
        case 'end':
          return _context6.stop();
      }
    }
  }, _initMultipartUpload, this);
});

/**
 * 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__*/_regenerator2.default.mark(function _uploadPart(name, uploadId, partNo, data, options) {
  var params, result;
  return _regenerator2.default.wrap(function _uploadPart$(_context7) {
    while (1) {
      switch (_context7.prev = _context7.next) {
        case 0:
          options = options || {};
          options.headers = {
            'Content-Length': data.size
          };

          options.subres = {
            partNumber: partNo,
            uploadId: uploadId
          };
          params = this._objectRequestParams('PUT', name, options);

          params.mime = options.mime;
          params.stream = data.stream;
          params.successStatuses = [200];

          _context7.next = 9;
          return this.request(params);

        case 9:
          result = _context7.sent;


          data.stream = null;
          params.stream = null;
          return _context7.abrupt('return', {
            name: name,
            etag: result.res.headers.etag,
            res: result.res
          });

        case 13:
        case 'end':
          return _context7.stop();
      }
    }
  }, _uploadPart, this);
});

/**
 * Complete a multipart upload transaction
 * @param {String} name the object name
 * @param {String} uploadId the upload id
 * @param {Array} parts the uploaded parts
 * @param {Object} options
 */
proto._completeMultipartUpload = /*#__PURE__*/_regenerator2.default.mark(function _completeMultipartUpload(name, uploadId, parts, options) {
  var xml, i, p, params, result, ret;
  return _regenerator2.default.wrap(function _completeMultipartUpload$(_context8) {
    while (1) {
      switch (_context8.prev = _context8.next) {
        case 0:
          parts.sort(function (a, b) {
            return a.number - b.number;
          });
          xml = '<?xml version="1.0" encoding="UTF-8"?>\n<CompleteMultipartUpload>\n';

          for (i = 0; i < parts.length; i++) {
            p = parts[i];

            xml += '<Part>\n';
            xml += '<PartNumber>' + p.number + '</PartNumber>\n';
            xml += '<ETag>' + p.etag + '</ETag>\n';
            xml += '</Part>\n';
          }
          xml += '</CompleteMultipartUpload>';

          options = options || {};
          options.subres = { uploadId: uploadId };
          params = this._objectRequestParams('POST', name, options);

          params.mime = 'xml';
          params.content = xml;
          if (!(options.headers && options.headers['x-oss-callback'])) {
            params.xmlResponse = true;
          }
          params.successStatuses = [200];
          _context8.next = 13;
          return this.request(params);

        case 13:
          result = _context8.sent;
          ret = {
            res: result.res,
            bucket: params.bucket,
            name: name,
            etag: result.res.headers['etag']
          };


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

          return _context8.abrupt('return', ret);

        case 17:
        case 'end':
          return _context8.stop();
      }
    }
  }, _completeMultipartUpload, this);
});

is.file = function (file) {
  return typeof File !== 'undefined' && file instanceof File;
};

/**
 * Get file size
 */
proto._getFileSize = /*#__PURE__*/_regenerator2.default.mark(function _getFileSize(file) {
  var stat;
  return _regenerator2.default.wrap(function _getFileSize$(_context9) {
    while (1) {
      switch (_context9.prev = _context9.next) {
        case 0:
          if (!is.buffer(file)) {
            _context9.next = 4;
            break;
          }

          return _context9.abrupt('return', file.length);

        case 4:
          if (!is.file(file)) {
            _context9.next = 6;
            break;
          }

          return _context9.abrupt('return', file.size);

        case 6:
          if (!is.string(file)) {
            _context9.next = 11;
            break;
          }

          _context9.next = 9;
          return this._statFile(file);

        case 9:
          stat = _context9.sent;
          return _context9.abrupt('return', stat.size);

        case 11:
          throw new Error('_getFileSize requires Buffer/File/String.');

        case 12:
        case 'end':
          return _context9.stop();
      }
    }
  }, _getFileSize, this);
});

/*
 * Readable stream for Web File
 */
var Readable = require('stream').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;
}
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 || 0 == this.start && !this.file) {
    if (!this.finish) {
      this.fileBuffer = null;
      this.finish = true;
    }
    this.push(null);
    return;
  }

  var defaultReadSize = 16 * 1024;
  size = size ? size : defaultReadSize;

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

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

proto._createStream = function _createStream(file, start, end) {
  if (is.file(file)) {
    return new WebFileReadStream(file.slice(start, end));
  }
  // else if (is.string(file)) {
  //   return fs.createReadStream(file, {
  //     start: start,
  //     end: end - 1
  //   });
  // }
  else {
      throw new Error('_createStream requires File/String.');
    }
};

proto._getPartSize = function _getPartSize(fileSize, partSize) {
  var maxNumParts = 10 * 1000;
  var defaultPartSize = 1 * 1024 * 1024;

  if (!partSize) {
    return defaultPartSize;
  }

  return Math.max(Math.ceil(fileSize / maxNumParts), 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)
},{"babel-runtime/core-js/array/from":11,"babel-runtime/regenerator":27,"buffer":31,"co-gather":34,"is-type-of":152,"mime":227,"path":156,"stream":183,"util":196}],4:[function(require,module,exports){
'use strict';

var _regenerator = require('babel-runtime/regenerator');

var _regenerator2 = _interopRequireDefault(_regenerator);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var debug = require('debug')('ali-oss:object');
var utility = require('utility');
// var crypto = require('crypto');
var fs = require('fs');
var is = require('is-type-of');
// var eoe = require('end-or-error');
var urlutil = require('url');
var copy = require('copy-to');
var path = require('path');
var mime = require('mime');
// 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__*/_regenerator2.default.mark(function _callee(name, file, options) {
  var result;
  return _regenerator2.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);
});

/**
 * 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
 * @return {Object}
 */
proto.put = /*#__PURE__*/_regenerator2.default.mark(function put(name, file, options) {
  var content, stream, method, params, result, ret;
  return _regenerator2.default.wrap(function put$(_context2) {
    while (1) {
      switch (_context2.prev = _context2.next) {
        case 0:

          options = options || {};

          if (!is.buffer(file)) {
            _context2.next = 5;
            break;
          }

          content = file;
          _context2.next = 23;
          break;

        case 5:
          if (!is.string(file)) {
            _context2.next = 16;
            break;
          }

          options.mime = options.mime || mime.getType(path.extname(file));
          stream = fs.createReadStream(file);
          _context2.next = 10;
          return this._getFileSize(file);

        case 10:
          options.contentLength = _context2.sent;
          _context2.next = 13;
          return this.putStream(name, stream, options);

        case 13:
          return _context2.abrupt('return', _context2.sent);

        case 16:
          if (!is.readableStream(file)) {
            _context2.next = 22;
            break;
          }

          _context2.next = 19;
          return this.putStream(name, file, options);

        case 19:
          return _context2.abrupt('return', _context2.sent);

        case 22:
          throw new TypeError('Must provide String/Buffer/ReadableStream for put.');

        case 23:

          options.headers = options.headers || {};
          this._convertMetaToHeaders(options.meta, options.headers);

          method = options.method || 'PUT';
          params = this._objectRequestParams(method, name, options);

          params.mime = options.mime;
          params.content = content;
          params.successStatuses = [200];

          _context2.next = 32;
          return this.request(params);

        case 32:
          result = _context2.sent;
          ret = {
            name: name,
            url: this._objectUrl(name),
            res: result.res
          };


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

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

        case 36:
        case 'end':
          return _context2.stop();
      }
    }
  }, put, this);
});

/**
 * 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__*/_regenerator2.default.mark(function putStream(name, stream, options) {
  var method, params, result, ret;
  return _regenerator2.default.wrap(function putStream$(_context3) {
    while (1) {
      switch (_context3.prev = _context3.next) {
        case 0:
          options = options || {};
          options.headers = options.headers || {};
          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);


          params.mime = options.mime;
          params.stream = stream;
          params.successStatuses = [200];

          _context3.next = 11;
          return this.request(params);

        case 11:
          result = _context3.sent;
          ret = {
            name: name,
            url: this._objectUrl(name),
            res: result.res
          };


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

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

        case 15:
        case 'end':
          return _context3.stop();
      }
    }
  }, putStream, this);
});

proto.head = /*#__PURE__*/_regenerator2.default.mark(function head(name, options) {
  var params, result, data, k;
  return _regenerator2.default.wrap(function head$(_context4) {
    while (1) {
      switch (_context4.prev = _context4.next) {
        case 0:
          params = this._objectRequestParams('HEAD', name, options);

          params.successStatuses = [200, 304];

          _context4.next = 4;
          return this.request(params);

        case 4:
          result = _context4.sent;
          data = {
            meta: null,
            res: result.res,
            status: result.status
          };


          if (result.status === 200) {
            for (k in result.headers) {
              if (k.indexOf('x-oss-meta-') === 0) {
                if (!data.meta) {
                  data.meta = {};
                }
                data.meta[k.substring(11)] = result.headers[k];
              }
            }
          }
          return _context4.abrupt('return', data);

        case 8:
        case 'end':
          return _context4.stop();
      }
    }
  }, head, this);
});

proto.get = /*#__PURE__*/_regenerator2.default.mark(function get(name, file, options) {
  var writeStream, needDestroy, result, params;
  return _regenerator2.default.wrap(function get$(_context5) {
    while (1) {
      switch (_context5.prev = _context5.next) {
        case 0:
          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 || {};
          if (options.process) {
            options.subres = options.subres || {};
            options.subres['x-oss-process'] = options.process;
          }

          _context5.prev = 5;
          params = this._objectRequestParams('GET', name, options);

          params.writeStream = writeStream;
          params.successStatuses = [200, 206, 304];

          _context5.next = 11;
          return this.request(params);

        case 11:
          result = _context5.sent;


          if (needDestroy) {
            writeStream.destroy();
          }
          _context5.next = 23;
          break;

        case 15:
          _context5.prev = 15;
          _context5.t0 = _context5['catch'](5);

          if (!needDestroy) {
            _context5.next = 22;
            break;
          }

          writeStream.destroy();
          // should delete the exists file before throw error
          debug('get error: %s, delete the exists file %s', _context5.t0, file);
          _context5.next = 22;
          return this._deleteFileSafe(file);

        case 22:
          throw _context5.t0;

        case 23:
          return _context5.abrupt('return', {
            res: result.res,
            content: result.data
          });

        case 24:
        case 'end':
          return _context5.stop();
      }
    }
  }, get, this, [[5, 15]]);
});

proto.getStream = /*#__PURE__*/_regenerator2.default.mark(function getStream(name, options) {
  var params, result;
  return _regenerator2.default.wrap(function getStream$(_context6) {
    while (1) {
      switch (_context6.prev = _context6.next) {
        case 0:
          options = options || {};
          params = this._objectRequestParams('GET', name, options);

          params.customResponse = true;
          params.successStatuses = [200, 206, 304];

          _context6.next = 6;
          return this.request(params);

        case 6:
          result = _context6.sent;
          return _context6.abrupt('return', {
            stream: result.res,
            res: {
              status: result.status,
              headers: result.headers
            }
          });

        case 8:
        case 'end':
          return _context6.stop();
      }
    }
  }, getStream, this);
});

proto.delete = /*#__PURE__*/_regenerator2.default.mark(function _delete(name, options) {
  var params, result;
  return _regenerator2.default.wrap(function _delete$(_context7) {
    while (1) {
      switch (_context7.prev = _context7.next) {
        case 0:
          params = this._objectRequestParams('DELETE', name, options);

          params.successStatuses = [204];

          _context7.next = 4;
          return this.request(params);

        case 4:
          result = _context7.sent;
          return _context7.abrupt('return', {
            res: result.res
          });

        case 6:
        case 'end':
          return _context7.stop();
      }
    }
  }, _delete, this);
});

proto.deleteMulti = /*#__PURE__*/_regenerator2.default.mark(function deleteMulti(names, options) {
  var xml, i, params, result, r, deleted;
  return _regenerator2.default.wrap(function deleteMulti$(_context8) {
    while (1) {
      switch (_context8.prev = _context8.next) {
        case 0:
          options = options || {};
          xml = '<?xml version="1.0" encoding="UTF-8"?>\n<Delete>\n';

          if (options.quiet) {
            xml += '  <Quiet>true</Quiet>\n';
          } else {
            xml += '  <Quiet>false</Quiet>\n';
          }
          for (i = 0; i < names.length; i++) {
            xml += '  <Object><Key>' + utility.escape(this._objectName(names[i])) + '</Key></Object>\n';
          }
          xml += '</Delete>';
          debug('delete multi objects: %s', xml);

          options.subres = 'delete';
          params = this._objectRequestParams('POST', '', options);

          params.mime = 'xml';
          params.content = xml;
          params.xmlResponse = true;
          params.successStatuses = [200];
          _context8.next = 14;
          return this.request(params);

        case 14:
          result = _context8.sent;
          r = result.data;
          deleted = r && r.Deleted || null;

          if (deleted) {
            if (!Array.isArray(deleted)) {
              deleted = [deleted];
            }
            deleted = deleted.map(function (item) {
              return item.Key;
            });
          }
          return _context8.abrupt('return', {
            res: result.res,
            deleted: deleted
          });

        case 19:
        case 'end':
          return _context8.stop();
      }
    }
  }, deleteMulti, this);
});

proto.copy = /*#__PURE__*/_regenerator2.default.mark(function copy(name, sourceName, options) {
  var k, params, result, data;
  return _regenerator2.default.wrap(function copy$(_context9) {
    while (1) {
      switch (_context9.prev = _context9.next) {
        case 0:
          options = options || {};
          options.headers = options.headers || {};
          for (k in options.headers) {
            options.headers['x-oss-copy-source-' + k.toLowerCase()] = options.headers[k];
          }

          if (options.meta) {
            options.headers['x-oss-metadata-directive'] = 'REPLACE';
          }
          this._convertMetaToHeaders(options.meta, options.headers);

          if (sourceName[0] !== '/') {
            // no specify bucket name
            sourceName = '/' + this.options.bucket + '/' + encodeURIComponent(sourceName);
          } else {
            sourceName = '/' + encodeURIComponent(sourceName.slice(1));
          }

          options.headers['x-oss-copy-source'] = sourceName;

          params = this._objectRequestParams('PUT', name, options);

          params.xmlResponse = true;
          params.successStatuses = [200, 304];

          _context9.next = 12;
          return this.request(params);

        case 12:
          result = _context9.sent;
          data = result.data;

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

          return _context9.abrupt('return', {
            data: data,
            res: result.res
          });

        case 16:
        case 'end':
          return _context9.stop();
      }
    }
  }, copy, this);
});

proto.putMeta = /*#__PURE__*/_regenerator2.default.mark(function putMeta(name, meta, options) {
  return _regenerator2.default.wrap(function putMeta$(_context10) {
    while (1) {
      switch (_context10.prev = _context10.next) {
        case 0:
          _context10.next = 2;
          return this.copy(name, name, {
            meta: meta || {},
            timeout: options && options.timeout,
            ctx: options && options.ctx
          });

        case 2:
          return _context10.abrupt('return', _context10.sent);

        case 3:
        case 'end':
          return _context10.stop();
      }
    }
  }, putMeta, this);
});

proto.list = /*#__PURE__*/_regenerator2.default.mark(function list(query, options) {
  var params, result, objects, that, prefixes;
  return _regenerator2.default.wrap(function list$(_context11) {
    while (1) {
      switch (_context11.prev = _context11.next) {
        case 0:
          // prefix, marker, max-keys, delimiter

          params = this._objectRequestParams('GET', '', options);

          params.query = query;
          params.xmlResponse = true;
          params.successStatuses = [200];

          _context11.next = 6;
          return this.request(params);

        case 6:
          result = _context11.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 _context11.abrupt('return', {
            res: result.res,
            objects: objects,
            prefixes: prefixes,
            nextMarker: result.data.NextMarker || null,
            isTruncated: result.data.IsTruncated === 'true'
          });

        case 13:
        case 'end':
          return _context11.stop();
      }
    }
  }, list, this);
});

/*
 * Set object's ACL
 * @param {String} name the object key
 * @param {String} acl the object ACL
 * @param {Object} options
 */
proto.putACL = /*#__PURE__*/_regenerator2.default.mark(function putACL(name, acl, options) {
  var params, result;
  return _regenerator2.default.wrap(function putACL$(_context12) {
    while (1) {
      switch (_context12.prev = _context12.next) {
        case 0:
          options = options || {};
          options.subres = 'acl';
          options.headers = options.headers || {};
          options.headers['x-oss-object-acl'] = acl;
          name = this._objectName(name);

          params = this._objectRequestParams('PUT', name, options);

          params.successStatuses = [200];

          _context12.next = 9;
          return this.request(params);

        case 9:
          result = _context12.sent;
          return _context12.abrupt('return', {
            res: result.res
          });

        case 11:
        case 'end':
          return _context12.stop();
      }
    }
  }, putACL, this);
});

/*
 * Get object's ACL
 * @param {String} name the object key
 * @param {Object} options
 * @return {Object}
 */
proto.getACL = /*#__PURE__*/_regenerator2.default.mark(function getACL(name, options) {
  var params, result;
  return _regenerator2.default.wrap(function getACL$(_context13) {
    while (1) {
      switch (_context13.prev = _context13.next) {
        case 0:
          options = options || {};
          options.subres = 'acl';
          name = this._objectName(name);

          params = this._objectRequestParams('GET', name, options);

          params.successStatuses = [200];
          params.xmlResponse = true;

          _context13.next = 8;
          return this.request(params);

        case 8:
          result = _context13.sent;
          return _context13.abrupt('return', {
            acl: result.data.AccessControlList.Grant,
            owner: {
              id: result.data.Owner.ID,
              displayName: result.data.Owner.DisplayName
            },
            res: result.res
          });

        case 10:
        case 'end':
          return _context13.stop();
      }
    }
  }, getACL, this);
});

proto.signatureUrl = function (name, options) {
  name = this._objectName(name);
  var params = {
    bucket: this.options.bucket,
    object: name
  };
  options = options || {};
  var expires = utility.timestamp() + (options.expires || 1800);
  var resource = this._getResource(params);
  var query = {};
  var signList = [];

  for (var k in options.response) {
    var key = 'response-' + k.toLowerCase();
    query[key] = options.response[k];
    signList.push(key + '=' + options.response[k]);
  }
  if (this.options.stsToken) {
    query['security-token'] = this.options.stsToken;
    signList.push('security-token=' + this.options.stsToken);
  }
  if (options.process) {
    var processKeyword = 'x-oss-process';
    query[processKeyword] = options.process;
    var item = processKeyword + '=' + options.process;
    signList.push(item);
  }

  if (signList.length > 0) {
    signList.sort();
    resource += '?' + signList.join('&');
  }

  var stringToSign = [options.method || 'GET', options['content-md5'] || '', // Content-MD5
  options['content-type'] || '', // Content-Type
  expires, resource].join('\n');
  var signature = this.signature(stringToSign);

  var url = urlutil.parse(this._getReqUrl(params));
  url.query = {
    OSSAccessKeyId: this.options.accessKeyId,
    Expires: expires,
    Signature: signature
  };
  copy(query).to(url.query);

  return url.format();
};

/**
 * 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 (name, baseUrl) {
  if (!baseUrl) {
    baseUrl = this.options.endpoint.format();
  } else if (baseUrl[baseUrl.length - 1] !== '/') {
    baseUrl += '/';
  }
  return baseUrl + this._escape(this._objectName(name));
};

proto._objectUrl = function (name) {
  return this._getReqUrl({ bucket: this.options.bucket, object: name });
};

/**
 * generator request params
 * @return {Object} params
 *
 * @api private
 */

proto._objectRequestParams = function (method, name, options) {
  if (!this.options.bucket) {
    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 = options.headers;
  }
  return params;
};

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

proto._statFile = function (filepath) {
  return function (callback) {
    fs.stat(filepath, callback);
  };
};

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

  for (var k in meta) {
    headers['x-oss-meta-' + k] = meta[k];
  }
};

proto._deleteFileSafe = function (filepath) {
  return function (callback) {
    fs.exists(filepath, function (exists) {
      if (!exists) {
        return callback();
      }
      fs.unlink(filepath, function (err) {
        if (err) {
          debug('unlink %j error: %s', filepath, err);
        }
        callback();
      });
    });
  };
};

},{"babel-runtime/regenerator":27,"copy-to":38,"debug":142,"fs":30,"is-type-of":152,"mime":227,"path":156,"url":191,"utility":228}],5:[function(require,module,exports){
"use strict";

exports.version = "4.11.4";

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

var _getPrototypeOf = require('babel-runtime/core-js/object/get-prototype-of');

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _keys = require('babel-runtime/core-js/object/keys');

var _keys2 = _interopRequireDefault(_keys);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var co = require('co');
var OssClient = require('./client');

module.exports = Client;

function isGenerator(obj) {
  return obj && 'function' == typeof obj.next && 'function' == typeof obj.throw;
}

function isGeneratorFunction(obj) {
  if (!obj) return false;

  var constructor = obj.constructor;
  if (!constructor) return false;
  if ('GeneratorFunction' === constructor.name || 'GeneratorFunction' === constructor.displayName) return true;
  return isGenerator(constructor.prototype) || isGenerator(obj.prototype);
}

function wrap(ObjectClass, options) {
  var client = new ObjectClass(options);
  var props = (0, _keys2.default)(client);
  var protoProps = (0, _keys2.default)((0, _getPrototypeOf2.default)(client));

  props.concat(protoProps).forEach(function (key) {
    if (isGeneratorFunction(client[key])) {
      this[key] = co.wrap(client[key]).bind(client);
    } else {
      this[key] = client[key];
    }
  }, this);
}

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

  wrap.call(this, OssClient, options);
}

Client.STS = function STSClient(options) {
  if (!(this instanceof STSClient)) {
    return new STSClient(options);
  }

  wrap.call(this, OssClient.STS, options);
};

},{"./client":2,"babel-runtime/core-js/object/get-prototype-of":17,"babel-runtime/core-js/object/keys":18,"co":36}],7:[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 () {}

},{}],8:[function(require,module,exports){
module.exports = require('./register')().Promise

},{"./register":10}],9:[function(require,module,exports){
"use strict"
    // global key for user preferred registration
var REGISTRATION_KEY = '@@any-promise/REGISTRATION',
    // Prior registration (preferred or detected)
    registered = null

/**
 * Registers the given implementation.  An implementation must
 * be registered prior to any call to `require("any-promise")`,
 * typically on application load.
 *
 * If called with no arguments, will return registration in
 * following priority:
 *
 * For Node.js:
 *
 * 1. Previous registration
 * 2. global.Promise if node.js version >= 0.12
 * 3. Auto detected promise based on first sucessful require of
 *    known promise libraries. Note this is a last resort, as the
 *    loaded library is non-deterministic. node.js >= 0.12 will
 *    always use global.Promise over this priority list.
 * 4. Throws error.
 *
 * For Browser:
 *
 * 1. Previous registration
 * 2. window.Promise
 * 3. Throws error.
 *
 * Options:
 *
 * Promise: Desired Promise constructor
 * global: Boolean - Should the registration be cached in a global variable to
 * allow cross dependency/bundle registration?  (default true)
 */
module.exports = function(root, loadImplementation){
  return function register(implementation, opts){
    implementation = implementation || null
    opts = opts || {}
    // global registration unless explicitly  {global: false} in options (default true)
    var registerGlobal = opts.global !== false;

    // load any previous global registration
    if(registered === null && registerGlobal){
      registered = root[REGISTRATION_KEY] || null
    }

    if(registered !== null
        && implementation !== null
        && registered.implementation !== implementation){
      // Throw error if attempting to redefine implementation
      throw new Error('any-promise already defined as "'+registered.implementation+
        '".  You can only register an implementation before the first '+
        ' call to require("any-promise") and an implementation cannot be changed')
    }

    if(registered === null){
      // use provided implementation
      if(implementation !== null && typeof opts.Promise !== 'undefined'){
        registered = {
          Promise: opts.Promise,
          implementation: implementation
        }
      } else {
        // require implementation if implementation is specified but not provided
        registered = loadImplementation(implementation)
      }

      if(registerGlobal){
        // register preference globally in case multiple installations
        root[REGISTRATION_KEY] = registered
      }
    }

    return registered
  }
}

},{}],10:[function(require,module,exports){
"use strict";
module.exports = require('./loader')(window, loadImplementation)

/**
 * Browser specific loadImplementation.  Always uses `window.Promise`
 *
 * To register a custom implementation, must register with `Promise` option.
 */
function loadImplementation(){
  if(typeof window.Promise === 'undefined'){
    throw new Error("any-promise browser requires a polyfill or explicit registration"+
      " e.g: require('any-promise/register/bluebird')")
  }
  return {
    Promise: window.Promise,
    implementation: 'window.Promise'
  }
}

},{"./loader":9}],11:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/array/from"), __esModule: true };
},{"core-js/library/fn/array/from":39}],12:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/json/stringify"), __esModule: true };
},{"core-js/library/fn/json/stringify":40}],13:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/object/assign"), __esModule: true };
},{"core-js/library/fn/object/assign":41}],14:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/object/create"), __esModule: true };
},{"core-js/library/fn/object/create":42}],15:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/object/define-property"), __esModule: true };
},{"core-js/library/fn/object/define-property":43}],16:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/object/get-own-property-names"), __esModule: true };
},{"core-js/library/fn/object/get-own-property-names":44}],17:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/object/get-prototype-of"), __esModule: true };
},{"core-js/library/fn/object/get-prototype-of":45}],18:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/object/keys"), __esModule: true };
},{"core-js/library/fn/object/keys":46}],19:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/set-immediate"), __esModule: true };
},{"core-js/library/fn/set-immediate":47}],20:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/string/from-code-point"), __esModule: true };
},{"core-js/library/fn/string/from-code-point":48}],21:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/symbol"), __esModule: true };
},{"core-js/library/fn/symbol":50}],22:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/symbol/has-instance"), __esModule: true };
},{"core-js/library/fn/symbol/has-instance":49}],23:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/symbol/iterator"), __esModule: true };
},{"core-js/library/fn/symbol/iterator":51}],24:[function(require,module,exports){
"use strict";

exports.__esModule = true;

exports.default = function (instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
};
},{}],25:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _defineProperty = require("../core-js/object/define-property");

var _defineProperty2 = _interopRequireDefault(_defineProperty);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = 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;
      (0, _defineProperty2.default)(target, descriptor.key, descriptor);
    }
  }

  return function (Constructor, protoProps, staticProps) {
    if (protoProps) defineProperties(Constructor.prototype, protoProps);
    if (staticProps) defineProperties(Constructor, staticProps);
    return Constructor;
  };
}();
},{"../core-js/object/define-property":15}],26:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _iterator = require("../core-js/symbol/iterator");

var _iterator2 = _interopRequireDefault(_iterator);

var _symbol = require("../core-js/symbol");

var _symbol2 = _interopRequireDefault(_symbol);

var _typeof = typeof _symbol2.default === "function" && typeof _iterator2.default === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof _symbol2.default === "function" && obj.constructor === _symbol2.default && obj !== _symbol2.default.prototype ? "symbol" : typeof obj; };

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = typeof _symbol2.default === "function" && _typeof(_iterator2.default) === "symbol" ? function (obj) {
  return typeof obj === "undefined" ? "undefined" : _typeof(obj);
} : function (obj) {
  return obj && typeof _symbol2.default === "function" && obj.constructor === _symbol2.default && obj !== _symbol2.default.prototype ? "symbol" : typeof obj === "undefined" ? "undefined" : _typeof(obj);
};
},{"../core-js/symbol":21,"../core-js/symbol/iterator":23}],27:[function(require,module,exports){
module.exports = require("regenerator-runtime");

},{"regenerator-runtime":179}],28:[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
}

revLookup['-'.charCodeAt(0)] = 62
revLookup['_'.charCodeAt(0)] = 63

function placeHoldersCount (b64) {
  var len = b64.length
  if (len % 4 > 0) {
    throw new Error('Invalid string. Length must be a multiple of 4')
  }

  // the number of equal signs (place holders)
  // if there are two placeholders, than the two characters before it
  // represent one byte
  // if there is only one, then the three characters before it represent 2 bytes
  // this is just a cheap hack to not do indexOf twice
  return b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0
}

function byteLength (b64) {
  // base64 is 4/3 + up to two characters of the original data
  return (b64.length * 3 / 4) - placeHoldersCount(b64)
}

function toByteArray (b64) {
  var i, l, tmp, placeHolders, arr
  var len = b64.length
  placeHolders = placeHoldersCount(b64)

  arr = new Arr((len * 3 / 4) - placeHolders)

  // if there are placeholders, only get up to the last complete 4 chars
  l = placeHolders > 0 ? len - 4 : len

  var L = 0

  for (i = 0; i < l; 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[L++] = (tmp >> 16) & 0xFF
    arr[L++] = (tmp >> 8) & 0xFF
    arr[L++] = tmp & 0xFF
  }

  if (placeHolders === 2) {
    tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
    arr[L++] = tmp & 0xFF
  } else if (placeHolders === 1) {
    tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
    arr[L++] = (tmp >> 8) & 0xFF
    arr[L++] = 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) + (uint8[i + 1] << 8) + (uint8[i + 2])
    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 output = ''
  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]
    output += lookup[tmp >> 2]
    output += lookup[(tmp << 4) & 0x3F]
    output += '=='
  } else if (extraBytes === 2) {
    tmp = (uint8[len - 2] << 8) + (uint8[len - 1])
    output += lookup[tmp >> 10]
    output += lookup[(tmp >> 4) & 0x3F]
    output += lookup[(tmp << 2) & 0x3F]
    output += '='
  }

  parts.push(output)

  return parts.join('')
}

},{}],29:[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)os/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 (/coast/i.test(ua)) {
      result = {
        name: 'Opera Coast'
        , coast: t
        , version: versionIdentifier || getFirstMatch(/(?:coast)[\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.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;

  return bowser
});

},{}],30:[function(require,module,exports){

},{}],31:[function(require,module,exports){
(function (global){
/*!
 * The buffer module from node.js, for the browser.
 *
 * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
 * @license  MIT
 */
/* eslint-disable no-proto */

'use strict'

var base64 = require('base64-js')
var ieee754 = require('ieee754')
var isArray = require('isarray')

exports.Buffer = Buffer
exports.SlowBuffer = SlowBuffer
exports.INSPECT_MAX_BYTES = 50

/**
 * If `Buffer.TYPED_ARRAY_SUPPORT`:
 *   === true    Use Uint8Array implementation (fastest)
 *   === false   Use 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+.
 *
 * Due to various browser bugs, sometimes the Object implementation will be used even
 * when the browser supports typed arrays.
 *
 * Note:
 *
 *   - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,
 *     See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
 *
 *   - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
 *
 *   - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
 *     incorrect length in some situations.

 * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they
 * get the Object implementation, which is slower but behaves correctly.
 */
Buffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined
  ? global.TYPED_ARRAY_SUPPORT
  : typedArraySupport()

/*
 * Export kMaxLength after typed array support is determined.
 */
exports.kMaxLength = kMaxLength()

function typedArraySupport () {
  try {
    var arr = new Uint8Array(1)
    arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}
    return arr.foo() === 42 && // typed array instances can be augmented
        typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`
        arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`
  } catch (e) {
    return false
  }
}

function kMaxLength () {
  return Buffer.TYPED_ARRAY_SUPPORT
    ? 0x7fffffff
    : 0x3fffffff
}

function createBuffer (that, length) {
  if (kMaxLength() < length) {
    throw new RangeError('Invalid typed array length')
  }
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    // Return an augmented `Uint8Array` instance, for best performance
    that = new Uint8Array(length)
    that.__proto__ = Buffer.prototype
  } else {
    // Fallback: Return an object instance of the Buffer class
    if (that === null) {
      that = new Buffer(length)
    }
    that.length = length
  }

  return that
}

/**
 * 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) {
  if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {
    return new Buffer(arg, encodingOrOffset, length)
  }

  // Common case.
  if (typeof arg === 'number') {
    if (typeof encodingOrOffset === 'string') {
      throw new Error(
        'If encoding is specified then the first argument must be a string'
      )
    }
    return allocUnsafe(this, arg)
  }
  return from(this, arg, encodingOrOffset, length)
}

Buffer.poolSize = 8192 // not used by this implementation

// TODO: Legacy, not needed anymore. Remove in next major version.
Buffer._augment = function (arr) {
  arr.__proto__ = Buffer.prototype
  return arr
}

function from (that, value, encodingOrOffset, length) {
  if (typeof value === 'number') {
    throw new TypeError('"value" argument must not be a number')
  }

  if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
    return fromArrayBuffer(that, value, encodingOrOffset, length)
  }

  if (typeof value === 'string') {
    return fromString(that, value, encodingOrOffset)
  }

  return fromObject(that, 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(null, value, encodingOrOffset, length)
}

if (Buffer.TYPED_ARRAY_SUPPORT) {
  Buffer.prototype.__proto__ = Uint8Array.prototype
  Buffer.__proto__ = Uint8Array
  if (typeof Symbol !== 'undefined' && Symbol.species &&
      Buffer[Symbol.species] === Buffer) {
    // Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
    Object.defineProperty(Buffer, Symbol.species, {
      value: null,
      configurable: true
    })
  }
}

function assertSize (size) {
  if (typeof size !== 'number') {
    throw new TypeError('"size" argument must be a number')
  } else if (size < 0) {
    throw new RangeError('"size" argument must not be negative')
  }
}

function alloc (that, size, fill, encoding) {
  assertSize(size)
  if (size <= 0) {
    return createBuffer(that, 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(that, size).fill(fill, encoding)
      : createBuffer(that, size).fill(fill)
  }
  return createBuffer(that, size)
}

/**
 * Creates a new filled Buffer instance.
 * alloc(size[, fill[, encoding]])
 **/
Buffer.alloc = function (size, fill, encoding) {
  return alloc(null, size, fill, encoding)
}

function allocUnsafe (that, size) {
  assertSize(size)
  that = createBuffer(that, size < 0 ? 0 : checked(size) | 0)
  if (!Buffer.TYPED_ARRAY_SUPPORT) {
    for (var i = 0; i < size; ++i) {
      that[i] = 0
    }
  }
  return that
}

/**
 * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
 * */
Buffer.allocUnsafe = function (size) {
  return allocUnsafe(null, size)
}
/**
 * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
 */
Buffer.allocUnsafeSlow = function (size) {
  return allocUnsafe(null, size)
}

function fromString (that, string, encoding) {
  if (typeof encoding !== 'string' || encoding === '') {
    encoding = 'utf8'
  }

  if (!Buffer.isEncoding(encoding)) {
    throw new TypeError('"encoding" must be a valid string encoding')
  }

  var length = byteLength(string, encoding) | 0
  that = createBuffer(that, length)

  var actual = that.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')
    that = that.slice(0, actual)
  }

  return that
}

function fromArrayLike (that, array) {
  var length = array.length < 0 ? 0 : checked(array.length) | 0
  that = createBuffer(that, length)
  for (var i = 0; i < length; i += 1) {
    that[i] = array[i] & 255
  }
  return that
}

function fromArrayBuffer (that, array, byteOffset, length) {
  array.byteLength // this throws if `array` is not a valid ArrayBuffer

  if (byteOffset < 0 || array.byteLength < byteOffset) {
    throw new RangeError('\'offset\' is out of bounds')
  }

  if (array.byteLength < byteOffset + (length || 0)) {
    throw new RangeError('\'length\' is out of bounds')
  }

  if (byteOffset === undefined && length === undefined) {
    array = new Uint8Array(array)
  } else if (length === undefined) {
    array = new Uint8Array(array, byteOffset)
  } else {
    array = new Uint8Array(array, byteOffset, length)
  }

  if (Buffer.TYPED_ARRAY_SUPPORT) {
    // Return an augmented `Uint8Array` instance, for best performance
    that = array
    that.__proto__ = Buffer.prototype
  } else {
    // Fallback: Return an object instance of the Buffer class
    that = fromArrayLike(that, array)
  }
  return that
}

function fromObject (that, obj) {
  if (Buffer.isBuffer(obj)) {
    var len = checked(obj.length) | 0
    that = createBuffer(that, len)

    if (that.length === 0) {
      return that
    }

    obj.copy(that, 0, 0, len)
    return that
  }

  if (obj) {
    if ((typeof ArrayBuffer !== 'undefined' &&
        obj.buffer instanceof ArrayBuffer) || 'length' in obj) {
      if (typeof obj.length !== 'number' || isnan(obj.length)) {
        return createBuffer(that, 0)
      }
      return fromArrayLike(that, obj)
    }

    if (obj.type === 'Buffer' && isArray(obj.data)) {
      return fromArrayLike(that, obj.data)
    }
  }

  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
}

function checked (length) {
  // Note: cannot use `length < kMaxLength()` here because that fails when
  // length is NaN (which is otherwise coerced to zero.)
  if (length >= kMaxLength()) {
    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
                         'size: 0x' + kMaxLength().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)
}

Buffer.compare = function compare (a, b) {
  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
    throw new TypeError('Arguments must be Buffers')
  }

  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 (!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 (!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 (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&
      (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {
    return string.byteLength
  }
  if (typeof string !== 'string') {
    string = '' + string
  }

  var len = string.length
  if (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':
      case undefined:
        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 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
    }
  }
}

// The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect
// Buffer instances.
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 | 0
  if (length === 0) return ''
  if (arguments.length === 0) return utf8Slice(this, 0, length)
  return slowToString.apply(this, arguments)
}

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
  if (this.length > 0) {
    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
    if (this.length > max) str += ' ... '
  }
  return '<Buffer ' + str + '>'
}

Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
  if (!Buffer.isBuffer(target)) {
    throw new TypeError('Argument must be a Buffer')
  }

  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 (isNaN(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 (Buffer.TYPED_ARRAY_SUPPORT &&
        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
    }
  }

  // must be an even number of digits
  var strLen = string.length
  if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')

  if (length > strLen / 2) {
    length = strLen / 2
  }
  for (var i = 0; i < length; ++i) {
    var parsed = parseInt(string.substr(i * 2, 2), 16)
    if (isNaN(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
    }
  // legacy write(string, encoding, offset, length) - remove in v0.13
  } 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
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    newBuf = this.subarray(start, end)
    newBuf.__proto__ = Buffer.prototype
  } else {
    var sliceLen = end - start
    newBuf = new Buffer(sliceLen, undefined)
    for (var i = 0; i < sliceLen; ++i) {
      newBuf[i] = this[i + start]
    }
  }

  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) {
  if (!noAssert) checkOffset(offset, 1, this.length)
  return this[offset]
}

Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  return this[offset] | (this[offset + 1] << 8)
}

Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  return (this[offset] << 8) | this[offset + 1]
}

Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
  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) {
  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) {
  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) {
  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) {
  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) {
  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) {
  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) {
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, true, 23, 4)
}

Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, false, 23, 4)
}

Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, true, 52, 8)
}

Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
  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)
  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
  this[offset] = (value & 0xff)
  return offset + 1
}

function objectWriteUInt16 (buf, value, offset, littleEndian) {
  if (value < 0) value = 0xffff + value + 1
  for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; ++i) {
    buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
      (littleEndian ? i : 1 - i) * 8
  }
}

Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value & 0xff)
    this[offset + 1] = (value >>> 8)
  } else {
    objectWriteUInt16(this, value, offset, true)
  }
  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)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 8)
    this[offset + 1] = (value & 0xff)
  } else {
    objectWriteUInt16(this, value, offset, false)
  }
  return offset + 2
}

function objectWriteUInt32 (buf, value, offset, littleEndian) {
  if (value < 0) value = 0xffffffff + value + 1
  for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; ++i) {
    buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
  }
}

Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset + 3] = (value >>> 24)
    this[offset + 2] = (value >>> 16)
    this[offset + 1] = (value >>> 8)
    this[offset] = (value & 0xff)
  } else {
    objectWriteUInt32(this, value, offset, true)
  }
  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)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 24)
    this[offset + 1] = (value >>> 16)
    this[offset + 2] = (value >>> 8)
    this[offset + 3] = (value & 0xff)
  } else {
    objectWriteUInt32(this, value, offset, false)
  }
  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 (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
  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)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value & 0xff)
    this[offset + 1] = (value >>> 8)
  } else {
    objectWriteUInt16(this, value, offset, true)
  }
  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)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 8)
    this[offset + 1] = (value & 0xff)
  } else {
    objectWriteUInt16(this, value, offset, false)
  }
  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)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value & 0xff)
    this[offset + 1] = (value >>> 8)
    this[offset + 2] = (value >>> 16)
    this[offset + 3] = (value >>> 24)
  } else {
    objectWriteUInt32(this, value, offset, true)
  }
  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
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 24)
    this[offset + 1] = (value >>> 16)
    this[offset + 2] = (value >>> 8)
    this[offset + 3] = (value & 0xff)
  } else {
    objectWriteUInt32(this, value, offset, false)
  }
  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) {
  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) {
  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 (!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('sourceStart out of bounds')
  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
  var i

  if (this === target && start < targetStart && targetStart < end) {
    // descending copy from end
    for (i = len - 1; i >= 0; --i) {
      target[i + targetStart] = this[i + start]
    }
  } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
    // ascending copy from start
    for (i = 0; i < len; ++i) {
      target[i + targetStart] = this[i + start]
    }
  } else {
    Uint8Array.prototype.set.call(
      target,
      this.subarray(start, start + len),
      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 (val.length === 1) {
      var code = val.charCodeAt(0)
      if (code < 256) {
        val = code
      }
    }
    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)
    }
  } 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
      : utf8ToBytes(new Buffer(val, encoding).toString())
    var len = bytes.length
    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 strips out invalid characters like \n and \t from the string, base64-js does not
  str = stringtrim(str).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 stringtrim (str) {
  if (str.trim) return str.trim()
  return str.replace(/^\s+|\s+$/g, '')
}

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
}

function isnan (val) {
  return val !== val // eslint-disable-line no-self-compare
}

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"base64-js":28,"ieee754":148,"isarray":32}],32:[function(require,module,exports){
var toString = {}.toString;

module.exports = Array.isArray || function (arr) {
  return toString.call(arr) == '[object Array]';
};

},{}],33:[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"
}

},{}],34:[function(require,module,exports){
/*!
 * co-gather - index.js
 * Copyright(c) 2014 dead_horse <dead_horse@qq.com>
 * MIT Licensed
 */

'use strict';

/**
 * Module dependencies.
 */

var _regenerator = require('babel-runtime/regenerator');

var _regenerator2 = _interopRequireDefault(_regenerator);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var thread = require('co-thread');

module.exports = /*#__PURE__*/_regenerator2.default.mark(function gather(thunks, n) {
  var _marked, ret, index, next;

  return _regenerator2.default.wrap(function gather$(_context2) {
    while (1) {
      switch (_context2.prev = _context2.next) {
        case 0:
          next = function next() {
            var i;
            return _regenerator2.default.wrap(function next$(_context) {
              while (1) {
                switch (_context.prev = _context.next) {
                  case 0:
                    i = index++;

                    ret[i] = { isError: false };
                    _context.prev = 2;
                    _context.next = 5;
                    return thunks[i];

                  case 5:
                    ret[i].value = _context.sent;
                    _context.next = 12;
                    break;

                  case 8:
                    _context.prev = 8;
                    _context.t0 = _context['catch'](2);

                    ret[i].error = _context.t0;
                    ret[i].isError = true;

                  case 12:
                    if (!(index < thunks.length)) {
                      _context.next = 15;
                      break;
                    }

                    _context.next = 15;
                    return next;

                  case 15:
                  case 'end':
                    return _context.stop();
                }
              }
            }, _marked, this, [[2, 8]]);
          };

          _marked = /*#__PURE__*/_regenerator2.default.mark(next);

          n = Math.min(n || 5, thunks.length);
          ret = [];
          index = 0;
          _context2.next = 7;
          return thread(next, n);

        case 7:
          return _context2.abrupt('return', ret);

        case 8:
        case 'end':
          return _context2.stop();
      }
    }
  }, gather, this);
});

},{"babel-runtime/regenerator":27,"co-thread":35}],35:[function(require,module,exports){

/**
 * Expose `thread`.
 */

module.exports = thread;

/**
 * Run `fn` `n` times in parallel.
 *
 * @param {Function} fn
 * @param {Number} n
 * @return {Array}
 * @api public
 */

function thread(fn, n) {
  var gens = [];
  while (n--) gens.push(fn);
  return gens;
}
},{}],36:[function(require,module,exports){

/**
 * slice() reference.
 */

var slice = Array.prototype.slice;

/**
 * Expose `co`.
 */

module.exports = co['default'] = co.co = co;

/**
 * Wrap the given generator `fn` into a
 * function that returns a promise.
 * This is a separate function so that
 * every `co()` call doesn't create a new,
 * unnecessary closure.
 *
 * @param {GeneratorFunction} fn
 * @return {Function}
 * @api public
 */

co.wrap = function (fn) {
  createPromise.__generatorFunction__ = fn;
  return createPromise;
  function createPromise() {
    return co.call(this, fn.apply(this, arguments));
  }
};

/**
 * Execute the generator function or a generator
 * and return a promise.
 *
 * @param {Function} fn
 * @return {Promise}
 * @api public
 */

function co(gen) {
  var ctx = this;
  var args = slice.call(arguments, 1)

  // we wrap everything in a promise to avoid promise chaining,
  // which leads to memory leak errors.
  // see https://github.com/tj/co/issues/180
  return new Promise(function(resolve, reject) {
    if (typeof gen === 'function') gen = gen.apply(ctx, args);
    if (!gen || typeof gen.next !== 'function') return resolve(gen);

    onFulfilled();

    /**
     * @param {Mixed} res
     * @return {Promise}
     * @api private
     */

    function onFulfilled(res) {
      var ret;
      try {
        ret = gen.next(res);
      } catch (e) {
        return reject(e);
      }
      next(ret);
    }

    /**
     * @param {Error} err
     * @return {Promise}
     * @api private
     */

    function onRejected(err) {
      var ret;
      try {
        ret = gen.throw(err);
      } catch (e) {
        return reject(e);
      }
      next(ret);
    }

    /**
     * Get the next value in the generator,
     * return a promise.
     *
     * @param {Object} ret
     * @return {Promise}
     * @api private
     */

    function next(ret) {
      if (ret.done) return resolve(ret.value);
      var value = toPromise.call(ctx, ret.value);
      if (value && isPromise(value)) return value.then(onFulfilled, onRejected);
      return onRejected(new TypeError('You may only yield a function, promise, generator, array, or object, '
        + 'but the following object was passed: "' + String(ret.value) + '"'));
    }
  });
}

/**
 * Convert a `yield`ed value into a promise.
 *
 * @param {Mixed} obj
 * @return {Promise}
 * @api private
 */

function toPromise(obj) {
  if (!obj) return obj;
  if (isPromise(obj)) return obj;
  if (isGeneratorFunction(obj) || isGenerator(obj)) return co.call(this, obj);
  if ('function' == typeof obj) return thunkToPromise.call(this, obj);
  if (Array.isArray(obj)) return arrayToPromise.call(this, obj);
  if (isObject(obj)) return objectToPromise.call(this, obj);
  return obj;
}

/**
 * Convert a thunk to a promise.
 *
 * @param {Function}
 * @return {Promise}
 * @api private
 */

function thunkToPromise(fn) {
  var ctx = this;
  return new Promise(function (resolve, reject) {
    fn.call(ctx, function (err, res) {
      if (err) return reject(err);
      if (arguments.length > 2) res = slice.call(arguments, 1);
      resolve(res);
    });
  });
}

/**
 * Convert an array of "yieldables" to a promise.
 * Uses `Promise.all()` internally.
 *
 * @param {Array} obj
 * @return {Promise}
 * @api private
 */

function arrayToPromise(obj) {
  return Promise.all(obj.map(toPromise, this));
}

/**
 * Convert an object of "yieldables" to a promise.
 * Uses `Promise.all()` internally.
 *
 * @param {Object} obj
 * @return {Promise}
 * @api private
 */

function objectToPromise(obj){
  var results = new obj.constructor();
  var keys = Object.keys(obj);
  var promises = [];
  for (var i = 0; i < keys.length; i++) {
    var key = keys[i];
    var promise = toPromise.call(this, obj[key]);
    if (promise && isPromise(promise)) defer(promise, key);
    else results[key] = obj[key];
  }
  return Promise.all(promises).then(function () {
    return results;
  });

  function defer(promise, key) {
    // predefine the key in the result
    results[key] = undefined;
    promises.push(promise.then(function (res) {
      results[key] = res;
    }));
  }
}

/**
 * Check if `obj` is a promise.
 *
 * @param {Object} obj
 * @return {Boolean}
 * @api private
 */

function isPromise(obj) {
  return 'function' == typeof obj.then;
}

/**
 * Check if `obj` is a generator.
 *
 * @param {Mixed} obj
 * @return {Boolean}
 * @api private
 */

function isGenerator(obj) {
  return 'function' == typeof obj.next && 'function' == typeof obj.throw;
}

/**
 * Check if `obj` is a generator function.
 *
 * @param {Mixed} obj
 * @return {Boolean}
 * @api private
 */
function isGeneratorFunction(obj) {
  var constructor = obj.constructor;
  if (!constructor) return false;
  if ('GeneratorFunction' === constructor.name || 'GeneratorFunction' === constructor.displayName) return true;
  return isGenerator(constructor.prototype);
}

/**
 * Check for plain object.
 *
 * @param {Mixed} val
 * @return {Boolean}
 * @api private
 */

function isObject(val) {
  return Object == val.constructor;
}

},{}],37:[function(require,module,exports){
module.exports={
  "O_RDONLY": 0,
  "O_WRONLY": 1,
  "O_RDWR": 2,
  "S_IFMT": 61440,
  "S_IFREG": 32768,
  "S_IFDIR": 16384,
  "S_IFCHR": 8192,
  "S_IFBLK": 24576,
  "S_IFIFO": 4096,
  "S_IFLNK": 40960,
  "S_IFSOCK": 49152,
  "O_CREAT": 512,
  "O_EXCL": 2048,
  "O_NOCTTY": 131072,
  "O_TRUNC": 1024,
  "O_APPEND": 8,
  "O_DIRECTORY": 1048576,
  "O_NOFOLLOW": 256,
  "O_SYNC": 128,
  "O_SYMLINK": 2097152,
  "O_NONBLOCK": 4,
  "S_IRWXU": 448,
  "S_IRUSR": 256,
  "S_IWUSR": 128,
  "S_IXUSR": 64,
  "S_IRWXG": 56,
  "S_IRGRP": 32,
  "S_IWGRP": 16,
  "S_IXGRP": 8,
  "S_IRWXO": 7,
  "S_IROTH": 4,
  "S_IWOTH": 2,
  "S_IXOTH": 1,
  "E2BIG": 7,
  "EACCES": 13,
  "EADDRINUSE": 48,
  "EADDRNOTAVAIL": 49,
  "EAFNOSUPPORT": 47,
  "EAGAIN": 35,
  "EALREADY": 37,
  "EBADF": 9,
  "EBADMSG": 94,
  "EBUSY": 16,
  "ECANCELED": 89,
  "ECHILD": 10,
  "ECONNABORTED": 53,
  "ECONNREFUSED": 61,
  "ECONNRESET": 54,
  "EDEADLK": 11,
  "EDESTADDRREQ": 39,
  "EDOM": 33,
  "EDQUOT": 69,
  "EEXIST": 17,
  "EFAULT": 14,
  "EFBIG": 27,
  "EHOSTUNREACH": 65,
  "EIDRM": 90,
  "EILSEQ": 92,
  "EINPROGRESS": 36,
  "EINTR": 4,
  "EINVAL": 22,
  "EIO": 5,
  "EISCONN": 56,
  "EISDIR": 21,
  "ELOOP": 62,
  "EMFILE": 24,
  "EMLINK": 31,
  "EMSGSIZE": 40,
  "EMULTIHOP": 95,
  "ENAMETOOLONG": 63,
  "ENETDOWN": 50,
  "ENETRESET": 52,
  "ENETUNREACH": 51,
  "ENFILE": 23,
  "ENOBUFS": 55,
  "ENODATA": 96,
  "ENODEV": 19,
  "ENOENT": 2,
  "ENOEXEC": 8,
  "ENOLCK": 77,
  "ENOLINK": 97,
  "ENOMEM": 12,
  "ENOMSG": 91,
  "ENOPROTOOPT": 42,
  "ENOSPC": 28,
  "ENOSR": 98,
  "ENOSTR": 99,
  "ENOSYS": 78,
  "ENOTCONN": 57,
  "ENOTDIR": 20,
  "ENOTEMPTY": 66,
  "ENOTSOCK": 38,
  "ENOTSUP": 45,
  "ENOTTY": 25,
  "ENXIO": 6,
  "EOPNOTSUPP": 102,
  "EOVERFLOW": 84,
  "EPERM": 1,
  "EPIPE": 32,
  "EPROTO": 100,
  "EPROTONOSUPPORT": 43,
  "EPROTOTYPE": 41,
  "ERANGE": 34,
  "EROFS": 30,
  "ESPIPE": 29,
  "ESRCH": 3,
  "ESTALE": 70,
  "ETIME": 101,
  "ETIMEDOUT": 60,
  "ETXTBSY": 26,
  "EWOULDBLOCK": 35,
  "EXDEV": 18,
  "SIGHUP": 1,
  "SIGINT": 2,
  "SIGQUIT": 3,
  "SIGILL": 4,
  "SIGTRAP": 5,
  "SIGABRT": 6,
  "SIGIOT": 6,
  "SIGBUS": 10,
  "SIGFPE": 8,
  "SIGKILL": 9,
  "SIGUSR1": 30,
  "SIGSEGV": 11,
  "SIGUSR2": 31,
  "SIGPIPE": 13,
  "SIGALRM": 14,
  "SIGTERM": 15,
  "SIGCHLD": 20,
  "SIGCONT": 19,
  "SIGSTOP": 17,
  "SIGTSTP": 18,
  "SIGTTIN": 21,
  "SIGTTOU": 22,
  "SIGURG": 16,
  "SIGXCPU": 24,
  "SIGXFSZ": 25,
  "SIGVTALRM": 26,
  "SIGPROF": 27,
  "SIGWINCH": 28,
  "SIGIO": 23,
  "SIGSYS": 12,
  "SSL_OP_ALL": 2147486719,
  "SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION": 262144,
  "SSL_OP_CIPHER_SERVER_PREFERENCE": 4194304,
  "SSL_OP_CISCO_ANYCONNECT": 32768,
  "SSL_OP_COOKIE_EXCHANGE": 8192,
  "SSL_OP_CRYPTOPRO_TLSEXT_BUG": 2147483648,
  "SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS": 2048,
  "SSL_OP_EPHEMERAL_RSA": 0,
  "SSL_OP_LEGACY_SERVER_CONNECT": 4,
  "SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER": 32,
  "SSL_OP_MICROSOFT_SESS_ID_BUG": 1,
  "SSL_OP_MSIE_SSLV2_RSA_PADDING": 0,
  "SSL_OP_NETSCAPE_CA_DN_BUG": 536870912,
  "SSL_OP_NETSCAPE_CHALLENGE_BUG": 2,
  "SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG": 1073741824,
  "SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG": 8,
  "SSL_OP_NO_COMPRESSION": 131072,
  "SSL_OP_NO_QUERY_MTU": 4096,
  "SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION": 65536,
  "SSL_OP_NO_SSLv2": 16777216,
  "SSL_OP_NO_SSLv3": 33554432,
  "SSL_OP_NO_TICKET": 16384,
  "SSL_OP_NO_TLSv1": 67108864,
  "SSL_OP_NO_TLSv1_1": 268435456,
  "SSL_OP_NO_TLSv1_2": 134217728,
  "SSL_OP_PKCS1_CHECK_1": 0,
  "SSL_OP_PKCS1_CHECK_2": 0,
  "SSL_OP_SINGLE_DH_USE": 1048576,
  "SSL_OP_SINGLE_ECDH_USE": 524288,
  "SSL_OP_SSLEAY_080_CLIENT_DH_BUG": 128,
  "SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG": 0,
  "SSL_OP_TLS_BLOCK_PADDING_BUG": 512,
  "SSL_OP_TLS_D5_BUG": 256,
  "SSL_OP_TLS_ROLLBACK_BUG": 8388608,
  "ENGINE_METHOD_DSA": 2,
  "ENGINE_METHOD_DH": 4,
  "ENGINE_METHOD_RAND": 8,
  "ENGINE_METHOD_ECDH": 16,
  "ENGINE_METHOD_ECDSA": 32,
  "ENGINE_METHOD_CIPHERS": 64,
  "ENGINE_METHOD_DIGESTS": 128,
  "ENGINE_METHOD_STORE": 256,
  "ENGINE_METHOD_PKEY_METHS": 512,
  "ENGINE_METHOD_PKEY_ASN1_METHS": 1024,
  "ENGINE_METHOD_ALL": 65535,
  "ENGINE_METHOD_NONE": 0,
  "DH_CHECK_P_NOT_SAFE_PRIME": 2,
  "DH_CHECK_P_NOT_PRIME": 1,
  "DH_UNABLE_TO_CHECK_GENERATOR": 4,
  "DH_NOT_SUITABLE_GENERATOR": 8,
  "NPN_ENABLED": 1,
  "RSA_PKCS1_PADDING": 1,
  "RSA_SSLV23_PADDING": 2,
  "RSA_NO_PADDING": 3,
  "RSA_PKCS1_OAEP_PADDING": 4,
  "RSA_X931_PADDING": 5,
  "RSA_PKCS1_PSS_PADDING": 6,
  "POINT_CONVERSION_COMPRESSED": 2,
  "POINT_CONVERSION_UNCOMPRESSED": 4,
  "POINT_CONVERSION_HYBRID": 6,
  "F_OK": 0,
  "R_OK": 4,
  "W_OK": 2,
  "X_OK": 1,
  "UV_UDP_REUSEADDR": 4
}

},{}],38:[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;
}

},{}],39:[function(require,module,exports){
require('../../modules/es6.string.iterator');
require('../../modules/es6.array.from');
module.exports = require('../../modules/_core').Array.from;

},{"../../modules/_core":58,"../../modules/es6.array.from":117,"../../modules/es6.string.iterator":128}],40:[function(require,module,exports){
var core = require('../../modules/_core');
var $JSON = core.JSON || (core.JSON = { stringify: JSON.stringify });
module.exports = function stringify(it) { // eslint-disable-line no-unused-vars
  return $JSON.stringify.apply($JSON, arguments);
};

},{"../../modules/_core":58}],41:[function(require,module,exports){
require('../../modules/es6.object.assign');
module.exports = require('../../modules/_core').Object.assign;

},{"../../modules/_core":58,"../../modules/es6.object.assign":120}],42:[function(require,module,exports){
require('../../modules/es6.object.create');
var $Object = require('../../modules/_core').Object;
module.exports = function create(P, D) {
  return $Object.create(P, D);
};

},{"../../modules/_core":58,"../../modules/es6.object.create":121}],43:[function(require,module,exports){
require('../../modules/es6.object.define-property');
var $Object = require('../../modules/_core').Object;
module.exports = function defineProperty(it, key, desc) {
  return $Object.defineProperty(it, key, desc);
};

},{"../../modules/_core":58,"../../modules/es6.object.define-property":122}],44:[function(require,module,exports){
require('../../modules/es6.object.get-own-property-names');
var $Object = require('../../modules/_core').Object;
module.exports = function getOwnPropertyNames(it) {
  return $Object.getOwnPropertyNames(it);
};

},{"../../modules/_core":58,"../../modules/es6.object.get-own-property-names":123}],45:[function(require,module,exports){
require('../../modules/es6.object.get-prototype-of');
module.exports = require('../../modules/_core').Object.getPrototypeOf;

},{"../../modules/_core":58,"../../modules/es6.object.get-prototype-of":124}],46:[function(require,module,exports){
require('../../modules/es6.object.keys');
module.exports = require('../../modules/_core').Object.keys;

},{"../../modules/_core":58,"../../modules/es6.object.keys":125}],47:[function(require,module,exports){
require('../modules/web.immediate');
module.exports = require('../modules/_core').setImmediate;

},{"../modules/_core":58,"../modules/web.immediate":133}],48:[function(require,module,exports){
require('../../modules/es6.string.from-code-point');
module.exports = require('../../modules/_core').String.fromCodePoint;

},{"../../modules/_core":58,"../../modules/es6.string.from-code-point":127}],49:[function(require,module,exports){
require('../../modules/es6.function.has-instance');
module.exports = require('../../modules/_wks-ext').f('hasInstance');

},{"../../modules/_wks-ext":114,"../../modules/es6.function.has-instance":119}],50:[function(require,module,exports){
require('../../modules/es6.symbol');
require('../../modules/es6.object.to-string');
require('../../modules/es7.symbol.async-iterator');
require('../../modules/es7.symbol.observable');
module.exports = require('../../modules/_core').Symbol;

},{"../../modules/_core":58,"../../modules/es6.object.to-string":126,"../../modules/es6.symbol":129,"../../modules/es7.symbol.async-iterator":130,"../../modules/es7.symbol.observable":131}],51:[function(require,module,exports){
require('../../modules/es6.string.iterator');
require('../../modules/web.dom.iterable');
module.exports = require('../../modules/_wks-ext').f('iterator');

},{"../../modules/_wks-ext":114,"../../modules/es6.string.iterator":128,"../../modules/web.dom.iterable":132}],52:[function(require,module,exports){
module.exports = function (it) {
  if (typeof it != 'function') throw TypeError(it + ' is not a function!');
  return it;
};

},{}],53:[function(require,module,exports){
module.exports = function () { /* empty */ };

},{}],54:[function(require,module,exports){
var isObject = require('./_is-object');
module.exports = function (it) {
  if (!isObject(it)) throw TypeError(it + ' is not an object!');
  return it;
};

},{"./_is-object":77}],55:[function(require,module,exports){
// false -> Array#indexOf
// true  -> Array#includes
var toIObject = require('./_to-iobject');
var toLength = require('./_to-length');
var toAbsoluteIndex = require('./_to-absolute-index');
module.exports = function (IS_INCLUDES) {
  return function ($this, el, fromIndex) {
    var O = toIObject($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) {
      if (O[index] === el) return IS_INCLUDES || index || 0;
    } return !IS_INCLUDES && -1;
  };
};

},{"./_to-absolute-index":106,"./_to-iobject":108,"./_to-length":109}],56:[function(require,module,exports){
// getting tag from 19.1.3.6 Object.prototype.toString()
var cof = require('./_cof');
var TAG = require('./_wks')('toStringTag');
// ES3 wrong here
var ARG = cof(function () { return arguments; }()) == 'Arguments';

// fallback for IE11 Script Access Denied error
var tryGet = function (it, key) {
  try {
    return it[key];
  } catch (e) { /* empty */ }
};

module.exports = function (it) {
  var O, T, B;
  return it === undefined ? 'Undefined' : it === null ? 'Null'
    // @@toStringTag case
    : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T
    // builtinTag case
    : ARG ? cof(O)
    // ES3 arguments fallback
    : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;
};

},{"./_cof":57,"./_wks":115}],57:[function(require,module,exports){
var toString = {}.toString;

module.exports = function (it) {
  return toString.call(it).slice(8, -1);
};

},{}],58:[function(require,module,exports){
var core = module.exports = { version: '2.5.1' };
if (typeof __e == 'number') __e = core; // eslint-disable-line no-undef

},{}],59:[function(require,module,exports){
'use strict';
var $defineProperty = require('./_object-dp');
var createDesc = require('./_property-desc');

module.exports = function (object, index, value) {
  if (index in object) $defineProperty.f(object, index, createDesc(0, value));
  else object[index] = value;
};

},{"./_object-dp":88,"./_property-desc":99}],60:[function(require,module,exports){
// optional / simple context binding
var aFunction = require('./_a-function');
module.exports = function (fn, that, length) {
  aFunction(fn);
  if (that === undefined) return fn;
  switch (length) {
    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);
  };
};

},{"./_a-function":52}],61:[function(require,module,exports){
// 7.2.1 RequireObjectCoercible(argument)
module.exports = function (it) {
  if (it == undefined) throw TypeError("Can't call method on  " + it);
  return it;
};

},{}],62:[function(require,module,exports){
// Thank's IE8 for his funny defineProperty
module.exports = !require('./_fails')(function () {
  return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;
});

},{"./_fails":67}],63:[function(require,module,exports){
var isObject = require('./_is-object');
var document = require('./_global').document;
// typeof document.createElement is 'object' in old IE
var is = isObject(document) && isObject(document.createElement);
module.exports = function (it) {
  return is ? document.createElement(it) : {};
};

},{"./_global":68,"./_is-object":77}],64:[function(require,module,exports){
// IE 8- don't enum bug keys
module.exports = (
  'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'
).split(',');

},{}],65:[function(require,module,exports){
// all enumerable object keys, includes symbols
var getKeys = require('./_object-keys');
var gOPS = require('./_object-gops');
var pIE = require('./_object-pie');
module.exports = function (it) {
  var result = getKeys(it);
  var getSymbols = gOPS.f;
  if (getSymbols) {
    var symbols = getSymbols(it);
    var isEnum = pIE.f;
    var i = 0;
    var key;
    while (symbols.length > i) if (isEnum.call(it, key = symbols[i++])) result.push(key);
  } return result;
};

},{"./_object-gops":93,"./_object-keys":96,"./_object-pie":97}],66:[function(require,module,exports){
var global = require('./_global');
var core = require('./_core');
var ctx = require('./_ctx');
var hide = require('./_hide');
var PROTOTYPE = 'prototype';

var $export = function (type, name, source) {
  var IS_FORCED = type & $export.F;
  var IS_GLOBAL = type & $export.G;
  var IS_STATIC = type & $export.S;
  var IS_PROTO = type & $export.P;
  var IS_BIND = type & $export.B;
  var IS_WRAP = type & $export.W;
  var exports = IS_GLOBAL ? core : core[name] || (core[name] = {});
  var expProto = exports[PROTOTYPE];
  var target = IS_GLOBAL ? global : IS_STATIC ? global[name] : (global[name] || {})[PROTOTYPE];
  var key, own, out;
  if (IS_GLOBAL) source = name;
  for (key in source) {
    // contains in native
    own = !IS_FORCED && target && target[key] !== undefined;
    if (own && key in exports) continue;
    // export native or passed
    out = own ? target[key] : source[key];
    // prevent global pollution for namespaces
    exports[key] = IS_GLOBAL && typeof target[key] != 'function' ? source[key]
    // bind timers to global for call from export context
    : IS_BIND && own ? ctx(out, global)
    // wrap global constructors for prevent change them in library
    : IS_WRAP && target[key] == out ? (function (C) {
      var F = function (a, b, c) {
        if (this instanceof C) {
          switch (arguments.length) {
            case 0: return new C();
            case 1: return new C(a);
            case 2: return new C(a, b);
          } return new C(a, b, c);
        } return C.apply(this, arguments);
      };
      F[PROTOTYPE] = C[PROTOTYPE];
      return F;
    // make static versions for prototype methods
    })(out) : IS_PROTO && typeof out == 'function' ? ctx(Function.call, out) : out;
    // export proto methods to core.%CONSTRUCTOR%.methods.%NAME%
    if (IS_PROTO) {
      (exports.virtual || (exports.virtual = {}))[key] = out;
      // export proto methods to core.%CONSTRUCTOR%.prototype.%NAME%
      if (type & $export.R && expProto && !expProto[key]) hide(expProto, key, out);
    }
  }
};
// type bitmap
$export.F = 1;   // forced
$export.G = 2;   // global
$export.S = 4;   // static
$export.P = 8;   // proto
$export.B = 16;  // bind
$export.W = 32;  // wrap
$export.U = 64;  // safe
$export.R = 128; // real proto method for `library`
module.exports = $export;

},{"./_core":58,"./_ctx":60,"./_global":68,"./_hide":70}],67:[function(require,module,exports){
module.exports = function (exec) {
  try {
    return !!exec();
  } catch (e) {
    return true;
  }
};

},{}],68:[function(require,module,exports){
// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
var global = module.exports = typeof window != 'undefined' && window.Math == Math
  ? window : typeof self != 'undefined' && self.Math == Math ? self
  // eslint-disable-next-line no-new-func
  : Function('return this')();
if (typeof __g == 'number') __g = global; // eslint-disable-line no-undef

},{}],69:[function(require,module,exports){
var hasOwnProperty = {}.hasOwnProperty;
module.exports = function (it, key) {
  return hasOwnProperty.call(it, key);
};

},{}],70:[function(require,module,exports){
var dP = require('./_object-dp');
var createDesc = require('./_property-desc');
module.exports = require('./_descriptors') ? function (object, key, value) {
  return dP.f(object, key, createDesc(1, value));
} : function (object, key, value) {
  object[key] = value;
  return object;
};

},{"./_descriptors":62,"./_object-dp":88,"./_property-desc":99}],71:[function(require,module,exports){
var document = require('./_global').document;
module.exports = document && document.documentElement;

},{"./_global":68}],72:[function(require,module,exports){
module.exports = !require('./_descriptors') && !require('./_fails')(function () {
  return Object.defineProperty(require('./_dom-create')('div'), 'a', { get: function () { return 7; } }).a != 7;
});

},{"./_descriptors":62,"./_dom-create":63,"./_fails":67}],73:[function(require,module,exports){
// fast apply, http://jsperf.lnkit.com/fast-apply/5
module.exports = function (fn, args, that) {
  var un = that === undefined;
  switch (args.length) {
    case 0: return un ? fn()
                      : fn.call(that);
    case 1: return un ? fn(args[0])
                      : fn.call(that, args[0]);
    case 2: return un ? fn(args[0], args[1])
                      : fn.call(that, args[0], args[1]);
    case 3: return un ? fn(args[0], args[1], args[2])
                      : fn.call(that, args[0], args[1], args[2]);
    case 4: return un ? fn(args[0], args[1], args[2], args[3])
                      : fn.call(that, args[0], args[1], args[2], args[3]);
  } return fn.apply(that, args);
};

},{}],74:[function(require,module,exports){
// fallback for non-array-like ES3 and non-enumerable old V8 strings
var cof = require('./_cof');
// eslint-disable-next-line no-prototype-builtins
module.exports = Object('z').propertyIsEnumerable(0) ? Object : function (it) {
  return cof(it) == 'String' ? it.split('') : Object(it);
};

},{"./_cof":57}],75:[function(require,module,exports){
// check on default Array iterator
var Iterators = require('./_iterators');
var ITERATOR = require('./_wks')('iterator');
var ArrayProto = Array.prototype;

module.exports = function (it) {
  return it !== undefined && (Iterators.Array === it || ArrayProto[ITERATOR] === it);
};

},{"./_iterators":83,"./_wks":115}],76:[function(require,module,exports){
// 7.2.2 IsArray(argument)
var cof = require('./_cof');
module.exports = Array.isArray || function isArray(arg) {
  return cof(arg) == 'Array';
};

},{"./_cof":57}],77:[function(require,module,exports){
module.exports = function (it) {
  return typeof it === 'object' ? it !== null : typeof it === 'function';
};

},{}],78:[function(require,module,exports){
// call something on iterator step with safe closing on error
var anObject = require('./_an-object');
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 (e) {
    var ret = iterator['return'];
    if (ret !== undefined) anObject(ret.call(iterator));
    throw e;
  }
};

},{"./_an-object":54}],79:[function(require,module,exports){
'use strict';
var create = require('./_object-create');
var descriptor = require('./_property-desc');
var setToStringTag = require('./_set-to-string-tag');
var IteratorPrototype = {};

// 25.1.2.1.1 %IteratorPrototype%[@@iterator]()
require('./_hide')(IteratorPrototype, require('./_wks')('iterator'), function () { return this; });

module.exports = function (Constructor, NAME, next) {
  Constructor.prototype = create(IteratorPrototype, { next: descriptor(1, next) });
  setToStringTag(Constructor, NAME + ' Iterator');
};

},{"./_hide":70,"./_object-create":87,"./_property-desc":99,"./_set-to-string-tag":101,"./_wks":115}],80:[function(require,module,exports){
'use strict';
var LIBRARY = require('./_library');
var $export = require('./_export');
var redefine = require('./_redefine');
var hide = require('./_hide');
var has = require('./_has');
var Iterators = require('./_iterators');
var $iterCreate = require('./_iter-create');
var setToStringTag = require('./_set-to-string-tag');
var getPrototypeOf = require('./_object-gpo');
var ITERATOR = require('./_wks')('iterator');
var BUGGY = !([].keys && 'next' in [].keys()); // Safari has buggy iterators w/o `next`
var FF_ITERATOR = '@@iterator';
var KEYS = 'keys';
var VALUES = 'values';

var returnThis = function () { return this; };

module.exports = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {
  $iterCreate(Constructor, NAME, next);
  var getMethod = function (kind) {
    if (!BUGGY && kind in proto) return proto[kind];
    switch (kind) {
      case KEYS: return function keys() { return new Constructor(this, kind); };
      case VALUES: return function values() { return new Constructor(this, kind); };
    } return function entries() { return new Constructor(this, kind); };
  };
  var TAG = NAME + ' Iterator';
  var DEF_VALUES = DEFAULT == VALUES;
  var VALUES_BUG = false;
  var proto = Base.prototype;
  var $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT];
  var $default = $native || getMethod(DEFAULT);
  var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined;
  var $anyNative = NAME == 'Array' ? proto.entries || $native : $native;
  var methods, key, IteratorPrototype;
  // Fix native
  if ($anyNative) {
    IteratorPrototype = getPrototypeOf($anyNative.call(new Base()));
    if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) {
      // Set @@toStringTag to native iterators
      setToStringTag(IteratorPrototype, TAG, true);
      // fix for some old engines
      if (!LIBRARY && !has(IteratorPrototype, ITERATOR)) hide(IteratorPrototype, ITERATOR, returnThis);
    }
  }
  // fix Array#{values, @@iterator}.name in V8 / FF
  if (DEF_VALUES && $native && $native.name !== VALUES) {
    VALUES_BUG = true;
    $default = function values() { return $native.call(this); };
  }
  // Define iterator
  if ((!LIBRARY || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {
    hide(proto, ITERATOR, $default);
  }
  // Plug for library
  Iterators[NAME] = $default;
  Iterators[TAG] = returnThis;
  if (DEFAULT) {
    methods = {
      values: DEF_VALUES ? $default : getMethod(VALUES),
      keys: IS_SET ? $default : getMethod(KEYS),
      entries: $entries
    };
    if (FORCED) for (key in methods) {
      if (!(key in proto)) redefine(proto, key, methods[key]);
    } else $export($export.P + $export.F * (BUGGY || VALUES_BUG), NAME, methods);
  }
  return methods;
};

},{"./_export":66,"./_has":69,"./_hide":70,"./_iter-create":79,"./_iterators":83,"./_library":84,"./_object-gpo":94,"./_redefine":100,"./_set-to-string-tag":101,"./_wks":115}],81:[function(require,module,exports){
var ITERATOR = require('./_wks')('iterator');
var SAFE_CLOSING = false;

try {
  var riter = [7][ITERATOR]();
  riter['return'] = function () { SAFE_CLOSING = true; };
  // eslint-disable-next-line no-throw-literal
  Array.from(riter, function () { throw 2; });
} catch (e) { /* empty */ }

module.exports = function (exec, skipClosing) {
  if (!skipClosing && !SAFE_CLOSING) return false;
  var safe = false;
  try {
    var arr = [7];
    var iter = arr[ITERATOR]();
    iter.next = function () { return { done: safe = true }; };
    arr[ITERATOR] = function () { return iter; };
    exec(arr);
  } catch (e) { /* empty */ }
  return safe;
};

},{"./_wks":115}],82:[function(require,module,exports){
module.exports = function (done, value) {
  return { value: value, done: !!done };
};

},{}],83:[function(require,module,exports){
module.exports = {};

},{}],84:[function(require,module,exports){
module.exports = true;

},{}],85:[function(require,module,exports){
var META = require('./_uid')('meta');
var isObject = require('./_is-object');
var has = require('./_has');
var setDesc = require('./_object-dp').f;
var id = 0;
var isExtensible = Object.isExtensible || function () {
  return true;
};
var FREEZE = !require('./_fails')(function () {
  return isExtensible(Object.preventExtensions({}));
});
var setMeta = function (it) {
  setDesc(it, META, { value: {
    i: 'O' + ++id, // object ID
    w: {}          // weak collections IDs
  } });
};
var fastKey = function (it, create) {
  // return primitive with prefix
  if (!isObject(it)) return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;
  if (!has(it, META)) {
    // can't set metadata to uncaught frozen object
    if (!isExtensible(it)) return 'F';
    // not necessary to add metadata
    if (!create) return 'E';
    // add missing metadata
    setMeta(it);
  // return object ID
  } return it[META].i;
};
var getWeak = function (it, create) {
  if (!has(it, META)) {
    // can't set metadata to uncaught frozen object
    if (!isExtensible(it)) return true;
    // not necessary to add metadata
    if (!create) return false;
    // add missing metadata
    setMeta(it);
  // return hash weak collections IDs
  } return it[META].w;
};
// add metadata on freeze-family methods calling
var onFreeze = function (it) {
  if (FREEZE && meta.NEED && isExtensible(it) && !has(it, META)) setMeta(it);
  return it;
};
var meta = module.exports = {
  KEY: META,
  NEED: false,
  fastKey: fastKey,
  getWeak: getWeak,
  onFreeze: onFreeze
};

},{"./_fails":67,"./_has":69,"./_is-object":77,"./_object-dp":88,"./_uid":112}],86:[function(require,module,exports){
'use strict';
// 19.1.2.1 Object.assign(target, source, ...)
var getKeys = require('./_object-keys');
var gOPS = require('./_object-gops');
var pIE = require('./_object-pie');
var toObject = require('./_to-object');
var IObject = require('./_iobject');
var $assign = Object.assign;

// should work with symbols and should have deterministic property order (V8 bug)
module.exports = !$assign || require('./_fails')(function () {
  var A = {};
  var B = {};
  // eslint-disable-next-line no-undef
  var S = Symbol();
  var K = 'abcdefghijklmnopqrst';
  A[S] = 7;
  K.split('').forEach(function (k) { B[k] = k; });
  return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;
}) ? function assign(target, source) { // eslint-disable-line no-unused-vars
  var T = toObject(target);
  var aLen = arguments.length;
  var index = 1;
  var getSymbols = gOPS.f;
  var isEnum = pIE.f;
  while (aLen > index) {
    var S = IObject(arguments[index++]);
    var keys = getSymbols ? getKeys(S).concat(getSymbols(S)) : getKeys(S);
    var length = keys.length;
    var j = 0;
    var key;
    while (length > j) if (isEnum.call(S, key = keys[j++])) T[key] = S[key];
  } return T;
} : $assign;

},{"./_fails":67,"./_iobject":74,"./_object-gops":93,"./_object-keys":96,"./_object-pie":97,"./_to-object":110}],87:[function(require,module,exports){
// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])
var anObject = require('./_an-object');
var dPs = require('./_object-dps');
var enumBugKeys = require('./_enum-bug-keys');
var IE_PROTO = require('./_shared-key')('IE_PROTO');
var Empty = function () { /* empty */ };
var PROTOTYPE = 'prototype';

// Create object with fake `null` prototype: use iframe Object with cleared prototype
var createDict = function () {
  // Thrash, waste and sodomy: IE GC bug
  var iframe = require('./_dom-create')('iframe');
  var i = enumBugKeys.length;
  var lt = '<';
  var gt = '>';
  var iframeDocument;
  iframe.style.display = 'none';
  require('./_html').appendChild(iframe);
  iframe.src = 'javascript:'; // eslint-disable-line no-script-url
  // createDict = iframe.contentWindow.Object;
  // html.removeChild(iframe);
  iframeDocument = iframe.contentWindow.document;
  iframeDocument.open();
  iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);
  iframeDocument.close();
  createDict = iframeDocument.F;
  while (i--) delete createDict[PROTOTYPE][enumBugKeys[i]];
  return createDict();
};

module.exports = Object.create || function create(O, Properties) {
  var result;
  if (O !== null) {
    Empty[PROTOTYPE] = anObject(O);
    result = new Empty();
    Empty[PROTOTYPE] = null;
    // add "__proto__" for Object.getPrototypeOf polyfill
    result[IE_PROTO] = O;
  } else result = createDict();
  return Properties === undefined ? result : dPs(result, Properties);
};

},{"./_an-object":54,"./_dom-create":63,"./_enum-bug-keys":64,"./_html":71,"./_object-dps":89,"./_shared-key":102}],88:[function(require,module,exports){
var anObject = require('./_an-object');
var IE8_DOM_DEFINE = require('./_ie8-dom-define');
var toPrimitive = require('./_to-primitive');
var dP = Object.defineProperty;

exports.f = require('./_descriptors') ? Object.defineProperty : function defineProperty(O, P, Attributes) {
  anObject(O);
  P = toPrimitive(P, true);
  anObject(Attributes);
  if (IE8_DOM_DEFINE) try {
    return dP(O, P, Attributes);
  } catch (e) { /* empty */ }
  if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');
  if ('value' in Attributes) O[P] = Attributes.value;
  return O;
};

},{"./_an-object":54,"./_descriptors":62,"./_ie8-dom-define":72,"./_to-primitive":111}],89:[function(require,module,exports){
var dP = require('./_object-dp');
var anObject = require('./_an-object');
var getKeys = require('./_object-keys');

module.exports = require('./_descriptors') ? Object.defineProperties : function defineProperties(O, Properties) {
  anObject(O);
  var keys = getKeys(Properties);
  var length = keys.length;
  var i = 0;
  var P;
  while (length > i) dP.f(O, P = keys[i++], Properties[P]);
  return O;
};

},{"./_an-object":54,"./_descriptors":62,"./_object-dp":88,"./_object-keys":96}],90:[function(require,module,exports){
var pIE = require('./_object-pie');
var createDesc = require('./_property-desc');
var toIObject = require('./_to-iobject');
var toPrimitive = require('./_to-primitive');
var has = require('./_has');
var IE8_DOM_DEFINE = require('./_ie8-dom-define');
var gOPD = Object.getOwnPropertyDescriptor;

exports.f = require('./_descriptors') ? gOPD : function getOwnPropertyDescriptor(O, P) {
  O = toIObject(O);
  P = toPrimitive(P, true);
  if (IE8_DOM_DEFINE) try {
    return gOPD(O, P);
  } catch (e) { /* empty */ }
  if (has(O, P)) return createDesc(!pIE.f.call(O, P), O[P]);
};

},{"./_descriptors":62,"./_has":69,"./_ie8-dom-define":72,"./_object-pie":97,"./_property-desc":99,"./_to-iobject":108,"./_to-primitive":111}],91:[function(require,module,exports){
// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window
var toIObject = require('./_to-iobject');
var gOPN = require('./_object-gopn').f;
var toString = {}.toString;

var windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames
  ? Object.getOwnPropertyNames(window) : [];

var getWindowNames = function (it) {
  try {
    return gOPN(it);
  } catch (e) {
    return windowNames.slice();
  }
};

module.exports.f = function getOwnPropertyNames(it) {
  return windowNames && toString.call(it) == '[object Window]' ? getWindowNames(it) : gOPN(toIObject(it));
};

},{"./_object-gopn":92,"./_to-iobject":108}],92:[function(require,module,exports){
// 19.1.2.7 / 15.2.3.4 Object.getOwnPropertyNames(O)
var $keys = require('./_object-keys-internal');
var hiddenKeys = require('./_enum-bug-keys').concat('length', 'prototype');

exports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
  return $keys(O, hiddenKeys);
};

},{"./_enum-bug-keys":64,"./_object-keys-internal":95}],93:[function(require,module,exports){
exports.f = Object.getOwnPropertySymbols;

},{}],94:[function(require,module,exports){
// 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O)
var has = require('./_has');
var toObject = require('./_to-object');
var IE_PROTO = require('./_shared-key')('IE_PROTO');
var ObjectProto = Object.prototype;

module.exports = 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 ? ObjectProto : null;
};

},{"./_has":69,"./_shared-key":102,"./_to-object":110}],95:[function(require,module,exports){
var has = require('./_has');
var toIObject = require('./_to-iobject');
var arrayIndexOf = require('./_array-includes')(false);
var IE_PROTO = require('./_shared-key')('IE_PROTO');

module.exports = function (object, names) {
  var O = toIObject(object);
  var i = 0;
  var result = [];
  var key;
  for (key in O) if (key != IE_PROTO) has(O, key) && result.push(key);
  // Don't enum bug & hidden keys
  while (names.length > i) if (has(O, key = names[i++])) {
    ~arrayIndexOf(result, key) || result.push(key);
  }
  return result;
};

},{"./_array-includes":55,"./_has":69,"./_shared-key":102,"./_to-iobject":108}],96:[function(require,module,exports){
// 19.1.2.14 / 15.2.3.14 Object.keys(O)
var $keys = require('./_object-keys-internal');
var enumBugKeys = require('./_enum-bug-keys');

module.exports = Object.keys || function keys(O) {
  return $keys(O, enumBugKeys);
};

},{"./_enum-bug-keys":64,"./_object-keys-internal":95}],97:[function(require,module,exports){
exports.f = {}.propertyIsEnumerable;

},{}],98:[function(require,module,exports){
// most Object methods by ES6 should accept primitives
var $export = require('./_export');
var core = require('./_core');
var fails = require('./_fails');
module.exports = function (KEY, exec) {
  var fn = (core.Object || {})[KEY] || Object[KEY];
  var exp = {};
  exp[KEY] = exec(fn);
  $export($export.S + $export.F * fails(function () { fn(1); }), 'Object', exp);
};

},{"./_core":58,"./_export":66,"./_fails":67}],99:[function(require,module,exports){
module.exports = function (bitmap, value) {
  return {
    enumerable: !(bitmap & 1),
    configurable: !(bitmap & 2),
    writable: !(bitmap & 4),
    value: value
  };
};

},{}],100:[function(require,module,exports){
module.exports = require('./_hide');

},{"./_hide":70}],101:[function(require,module,exports){
var def = require('./_object-dp').f;
var has = require('./_has');
var TAG = require('./_wks')('toStringTag');

module.exports = function (it, tag, stat) {
  if (it && !has(it = stat ? it : it.prototype, TAG)) def(it, TAG, { configurable: true, value: tag });
};

},{"./_has":69,"./_object-dp":88,"./_wks":115}],102:[function(require,module,exports){
var shared = require('./_shared')('keys');
var uid = require('./_uid');
module.exports = function (key) {
  return shared[key] || (shared[key] = uid(key));
};

},{"./_shared":103,"./_uid":112}],103:[function(require,module,exports){
var global = require('./_global');
var SHARED = '__core-js_shared__';
var store = global[SHARED] || (global[SHARED] = {});
module.exports = function (key) {
  return store[key] || (store[key] = {});
};

},{"./_global":68}],104:[function(require,module,exports){
var toInteger = require('./_to-integer');
var defined = require('./_defined');
// true  -> String#at
// false -> String#codePointAt
module.exports = function (TO_STRING) {
  return function (that, pos) {
    var s = String(defined(that));
    var i = toInteger(pos);
    var l = s.length;
    var a, b;
    if (i < 0 || i >= l) return TO_STRING ? '' : undefined;
    a = s.charCodeAt(i);
    return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff
      ? TO_STRING ? s.charAt(i) : a
      : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
  };
};

},{"./_defined":61,"./_to-integer":107}],105:[function(require,module,exports){
var ctx = require('./_ctx');
var invoke = require('./_invoke');
var html = require('./_html');
var cel = require('./_dom-create');
var global = require('./_global');
var process = global.process;
var setTask = global.setImmediate;
var clearTask = global.clearImmediate;
var MessageChannel = global.MessageChannel;
var Dispatch = global.Dispatch;
var counter = 0;
var queue = {};
var ONREADYSTATECHANGE = 'onreadystatechange';
var defer, channel, port;
var run = function () {
  var id = +this;
  // eslint-disable-next-line no-prototype-builtins
  if (queue.hasOwnProperty(id)) {
    var fn = queue[id];
    delete queue[id];
    fn();
  }
};
var listener = function (event) {
  run.call(event.data);
};
// Node.js 0.9+ & IE10+ has setImmediate, otherwise:
if (!setTask || !clearTask) {
  setTask = 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
      invoke(typeof fn == 'function' ? fn : Function(fn), args);
    };
    defer(counter);
    return counter;
  };
  clearTask = function clearImmediate(id) {
    delete queue[id];
  };
  // Node.js 0.8-
  if (require('./_cof')(process) == 'process') {
    defer = function (id) {
      process.nextTick(ctx(run, id, 1));
    };
  // Sphere (JS game engine) Dispatch API
  } else if (Dispatch && Dispatch.now) {
    defer = function (id) {
      Dispatch.now(ctx(run, id, 1));
    };
  // Browsers with MessageChannel, includes WebWorkers
  } else if (MessageChannel) {
    channel = new MessageChannel();
    port = channel.port2;
    channel.port1.onmessage = listener;
    defer = ctx(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) {
    defer = function (id) {
      global.postMessage(id + '', '*');
    };
    global.addEventListener('message', listener, false);
  // IE8-
  } else if (ONREADYSTATECHANGE in cel('script')) {
    defer = function (id) {
      html.appendChild(cel('script'))[ONREADYSTATECHANGE] = function () {
        html.removeChild(this);
        run.call(id);
      };
    };
  // Rest old browsers
  } else {
    defer = function (id) {
      setTimeout(ctx(run, id, 1), 0);
    };
  }
}
module.exports = {
  set: setTask,
  clear: clearTask
};

},{"./_cof":57,"./_ctx":60,"./_dom-create":63,"./_global":68,"./_html":71,"./_invoke":73}],106:[function(require,module,exports){
var toInteger = require('./_to-integer');
var max = Math.max;
var min = Math.min;
module.exports = function (index, length) {
  index = toInteger(index);
  return index < 0 ? max(index + length, 0) : min(index, length);
};

},{"./_to-integer":107}],107:[function(require,module,exports){
// 7.1.4 ToInteger
var ceil = Math.ceil;
var floor = Math.floor;
module.exports = function (it) {
  return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
};

},{}],108:[function(require,module,exports){
// to indexed object, toObject with fallback for non-array-like ES3 strings
var IObject = require('./_iobject');
var defined = require('./_defined');
module.exports = function (it) {
  return IObject(defined(it));
};

},{"./_defined":61,"./_iobject":74}],109:[function(require,module,exports){
// 7.1.15 ToLength
var toInteger = require('./_to-integer');
var min = Math.min;
module.exports = function (it) {
  return it > 0 ? min(toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991
};

},{"./_to-integer":107}],110:[function(require,module,exports){
// 7.1.13 ToObject(argument)
var defined = require('./_defined');
module.exports = function (it) {
  return Object(defined(it));
};

},{"./_defined":61}],111:[function(require,module,exports){
// 7.1.1 ToPrimitive(input [, PreferredType])
var isObject = require('./_is-object');
// 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 (it, S) {
  if (!isObject(it)) return it;
  var fn, val;
  if (S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
  if (typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it))) return val;
  if (!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
  throw TypeError("Can't convert object to primitive value");
};

},{"./_is-object":77}],112:[function(require,module,exports){
var id = 0;
var px = Math.random();
module.exports = function (key) {
  return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
};

},{}],113:[function(require,module,exports){
var global = require('./_global');
var core = require('./_core');
var LIBRARY = require('./_library');
var wksExt = require('./_wks-ext');
var defineProperty = require('./_object-dp').f;
module.exports = function (name) {
  var $Symbol = core.Symbol || (core.Symbol = LIBRARY ? {} : global.Symbol || {});
  if (name.charAt(0) != '_' && !(name in $Symbol)) defineProperty($Symbol, name, { value: wksExt.f(name) });
};

},{"./_core":58,"./_global":68,"./_library":84,"./_object-dp":88,"./_wks-ext":114}],114:[function(require,module,exports){
exports.f = require('./_wks');

},{"./_wks":115}],115:[function(require,module,exports){
var store = require('./_shared')('wks');
var uid = require('./_uid');
var Symbol = require('./_global').Symbol;
var USE_SYMBOL = typeof Symbol == 'function';

var $exports = module.exports = function (name) {
  return store[name] || (store[name] =
    USE_SYMBOL && Symbol[name] || (USE_SYMBOL ? Symbol : uid)('Symbol.' + name));
};

$exports.store = store;

},{"./_global":68,"./_shared":103,"./_uid":112}],116:[function(require,module,exports){
var classof = require('./_classof');
var ITERATOR = require('./_wks')('iterator');
var Iterators = require('./_iterators');
module.exports = require('./_core').getIteratorMethod = function (it) {
  if (it != undefined) return it[ITERATOR]
    || it['@@iterator']
    || Iterators[classof(it)];
};

},{"./_classof":56,"./_core":58,"./_iterators":83,"./_wks":115}],117:[function(require,module,exports){
'use strict';
var ctx = require('./_ctx');
var $export = require('./_export');
var toObject = require('./_to-object');
var call = require('./_iter-call');
var isArrayIter = require('./_is-array-iter');
var toLength = require('./_to-length');
var createProperty = require('./_create-property');
var getIterFn = require('./core.get-iterator-method');

$export($export.S + $export.F * !require('./_iter-detect')(function (iter) { Array.from(iter); }), 'Array', {
  // 22.1.2.1 Array.from(arrayLike, mapfn = undefined, thisArg = undefined)
  from: function from(arrayLike /* , mapfn = undefined, thisArg = undefined */) {
    var O = toObject(arrayLike);
    var C = typeof this == 'function' ? this : Array;
    var aLen = arguments.length;
    var mapfn = aLen > 1 ? arguments[1] : undefined;
    var mapping = mapfn !== undefined;
    var index = 0;
    var iterFn = getIterFn(O);
    var length, result, step, iterator;
    if (mapping) mapfn = ctx(mapfn, aLen > 2 ? arguments[2] : undefined, 2);
    // if object isn't iterable or it's array with default iterator - use simple case
    if (iterFn != undefined && !(C == Array && isArrayIter(iterFn))) {
      for (iterator = iterFn.call(O), result = new C(); !(step = iterator.next()).done; index++) {
        createProperty(result, index, mapping ? call(iterator, mapfn, [step.value, index], true) : step.value);
      }
    } else {
      length = toLength(O.length);
      for (result = new C(length); length > index; index++) {
        createProperty(result, index, mapping ? mapfn(O[index], index) : O[index]);
      }
    }
    result.length = index;
    return result;
  }
});

},{"./_create-property":59,"./_ctx":60,"./_export":66,"./_is-array-iter":75,"./_iter-call":78,"./_iter-detect":81,"./_to-length":109,"./_to-object":110,"./core.get-iterator-method":116}],118:[function(require,module,exports){
'use strict';
var addToUnscopables = require('./_add-to-unscopables');
var step = require('./_iter-step');
var Iterators = require('./_iterators');
var toIObject = require('./_to-iobject');

// 22.1.3.4 Array.prototype.entries()
// 22.1.3.13 Array.prototype.keys()
// 22.1.3.29 Array.prototype.values()
// 22.1.3.30 Array.prototype[@@iterator]()
module.exports = require('./_iter-define')(Array, 'Array', function (iterated, kind) {
  this._t = toIObject(iterated); // target
  this._i = 0;                   // next index
  this._k = kind;                // kind
// 22.1.5.2.1 %ArrayIteratorPrototype%.next()
}, function () {
  var O = this._t;
  var kind = this._k;
  var index = this._i++;
  if (!O || index >= O.length) {
    this._t = undefined;
    return step(1);
  }
  if (kind == 'keys') return step(0, index);
  if (kind == 'values') return step(0, O[index]);
  return step(0, [index, O[index]]);
}, 'values');

// argumentsList[@@iterator] is %ArrayProto_values% (9.4.4.6, 9.4.4.7)
Iterators.Arguments = Iterators.Array;

addToUnscopables('keys');
addToUnscopables('values');
addToUnscopables('entries');

},{"./_add-to-unscopables":53,"./_iter-define":80,"./_iter-step":82,"./_iterators":83,"./_to-iobject":108}],119:[function(require,module,exports){
'use strict';
var isObject = require('./_is-object');
var getPrototypeOf = require('./_object-gpo');
var HAS_INSTANCE = require('./_wks')('hasInstance');
var FunctionProto = Function.prototype;
// 19.2.3.6 Function.prototype[@@hasInstance](V)
if (!(HAS_INSTANCE in FunctionProto)) require('./_object-dp').f(FunctionProto, HAS_INSTANCE, { value: function (O) {
  if (typeof this != 'function' || !isObject(O)) return false;
  if (!isObject(this.prototype)) return O instanceof this;
  // for environment w/o native `@@hasInstance` logic enough `instanceof`, but add this:
  while (O = getPrototypeOf(O)) if (this.prototype === O) return true;
  return false;
} });

},{"./_is-object":77,"./_object-dp":88,"./_object-gpo":94,"./_wks":115}],120:[function(require,module,exports){
// 19.1.3.1 Object.assign(target, source)
var $export = require('./_export');

$export($export.S + $export.F, 'Object', { assign: require('./_object-assign') });

},{"./_export":66,"./_object-assign":86}],121:[function(require,module,exports){
var $export = require('./_export');
// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])
$export($export.S, 'Object', { create: require('./_object-create') });

},{"./_export":66,"./_object-create":87}],122:[function(require,module,exports){
var $export = require('./_export');
// 19.1.2.4 / 15.2.3.6 Object.defineProperty(O, P, Attributes)
$export($export.S + $export.F * !require('./_descriptors'), 'Object', { defineProperty: require('./_object-dp').f });

},{"./_descriptors":62,"./_export":66,"./_object-dp":88}],123:[function(require,module,exports){
// 19.1.2.7 Object.getOwnPropertyNames(O)
require('./_object-sap')('getOwnPropertyNames', function () {
  return require('./_object-gopn-ext').f;
});

},{"./_object-gopn-ext":91,"./_object-sap":98}],124:[function(require,module,exports){
// 19.1.2.9 Object.getPrototypeOf(O)
var toObject = require('./_to-object');
var $getPrototypeOf = require('./_object-gpo');

require('./_object-sap')('getPrototypeOf', function () {
  return function getPrototypeOf(it) {
    return $getPrototypeOf(toObject(it));
  };
});

},{"./_object-gpo":94,"./_object-sap":98,"./_to-object":110}],125:[function(require,module,exports){
// 19.1.2.14 Object.keys(O)
var toObject = require('./_to-object');
var $keys = require('./_object-keys');

require('./_object-sap')('keys', function () {
  return function keys(it) {
    return $keys(toObject(it));
  };
});

},{"./_object-keys":96,"./_object-sap":98,"./_to-object":110}],126:[function(require,module,exports){
arguments[4][30][0].apply(exports,arguments)
},{"dup":30}],127:[function(require,module,exports){
var $export = require('./_export');
var toAbsoluteIndex = require('./_to-absolute-index');
var fromCharCode = String.fromCharCode;
var $fromCodePoint = String.fromCodePoint;

// length should be 1, old FF problem
$export($export.S + $export.F * (!!$fromCodePoint && $fromCodePoint.length != 1), 'String', {
  // 21.1.2.2 String.fromCodePoint(...codePoints)
  fromCodePoint: function fromCodePoint(x) { // eslint-disable-line no-unused-vars
    var res = [];
    var aLen = arguments.length;
    var i = 0;
    var code;
    while (aLen > i) {
      code = +arguments[i++];
      if (toAbsoluteIndex(code, 0x10ffff) !== code) throw RangeError(code + ' is not a valid code point');
      res.push(code < 0x10000
        ? fromCharCode(code)
        : fromCharCode(((code -= 0x10000) >> 10) + 0xd800, code % 0x400 + 0xdc00)
      );
    } return res.join('');
  }
});

},{"./_export":66,"./_to-absolute-index":106}],128:[function(require,module,exports){
'use strict';
var $at = require('./_string-at')(true);

// 21.1.3.27 String.prototype[@@iterator]()
require('./_iter-define')(String, 'String', function (iterated) {
  this._t = String(iterated); // target
  this._i = 0;                // next index
// 21.1.5.2.1 %StringIteratorPrototype%.next()
}, function () {
  var O = this._t;
  var index = this._i;
  var point;
  if (index >= O.length) return { value: undefined, done: true };
  point = $at(O, index);
  this._i += point.length;
  return { value: point, done: false };
});

},{"./_iter-define":80,"./_string-at":104}],129:[function(require,module,exports){
'use strict';
// ECMAScript 6 symbols shim
var global = require('./_global');
var has = require('./_has');
var DESCRIPTORS = require('./_descriptors');
var $export = require('./_export');
var redefine = require('./_redefine');
var META = require('./_meta').KEY;
var $fails = require('./_fails');
var shared = require('./_shared');
var setToStringTag = require('./_set-to-string-tag');
var uid = require('./_uid');
var wks = require('./_wks');
var wksExt = require('./_wks-ext');
var wksDefine = require('./_wks-define');
var enumKeys = require('./_enum-keys');
var isArray = require('./_is-array');
var anObject = require('./_an-object');
var toIObject = require('./_to-iobject');
var toPrimitive = require('./_to-primitive');
var createDesc = require('./_property-desc');
var _create = require('./_object-create');
var gOPNExt = require('./_object-gopn-ext');
var $GOPD = require('./_object-gopd');
var $DP = require('./_object-dp');
var $keys = require('./_object-keys');
var gOPD = $GOPD.f;
var dP = $DP.f;
var gOPN = gOPNExt.f;
var $Symbol = global.Symbol;
var $JSON = global.JSON;
var _stringify = $JSON && $JSON.stringify;
var PROTOTYPE = 'prototype';
var HIDDEN = wks('_hidden');
var TO_PRIMITIVE = wks('toPrimitive');
var isEnum = {}.propertyIsEnumerable;
var SymbolRegistry = shared('symbol-registry');
var AllSymbols = shared('symbols');
var OPSymbols = shared('op-symbols');
var ObjectProto = Object[PROTOTYPE];
var USE_NATIVE = typeof $Symbol == 'function';
var QObject = global.QObject;
// Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173
var setter = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;

// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687
var setSymbolDesc = DESCRIPTORS && $fails(function () {
  return _create(dP({}, 'a', {
    get: function () { return dP(this, 'a', { value: 7 }).a; }
  })).a != 7;
}) ? function (it, key, D) {
  var protoDesc = gOPD(ObjectProto, key);
  if (protoDesc) delete ObjectProto[key];
  dP(it, key, D);
  if (protoDesc && it !== ObjectProto) dP(ObjectProto, key, protoDesc);
} : dP;

var wrap = function (tag) {
  var sym = AllSymbols[tag] = _create($Symbol[PROTOTYPE]);
  sym._k = tag;
  return sym;
};

var isSymbol = USE_NATIVE && typeof $Symbol.iterator == 'symbol' ? function (it) {
  return typeof it == 'symbol';
} : function (it) {
  return it instanceof $Symbol;
};

var $defineProperty = function defineProperty(it, key, D) {
  if (it === ObjectProto) $defineProperty(OPSymbols, key, D);
  anObject(it);
  key = toPrimitive(key, true);
  anObject(D);
  if (has(AllSymbols, key)) {
    if (!D.enumerable) {
      if (!has(it, HIDDEN)) dP(it, HIDDEN, createDesc(1, {}));
      it[HIDDEN][key] = true;
    } else {
      if (has(it, HIDDEN) && it[HIDDEN][key]) it[HIDDEN][key] = false;
      D = _create(D, { enumerable: createDesc(0, false) });
    } return setSymbolDesc(it, key, D);
  } return dP(it, key, D);
};
var $defineProperties = function defineProperties(it, P) {
  anObject(it);
  var keys = enumKeys(P = toIObject(P));
  var i = 0;
  var l = keys.length;
  var key;
  while (l > i) $defineProperty(it, key = keys[i++], P[key]);
  return it;
};
var $create = function create(it, P) {
  return P === undefined ? _create(it) : $defineProperties(_create(it), P);
};
var $propertyIsEnumerable = function propertyIsEnumerable(key) {
  var E = isEnum.call(this, key = toPrimitive(key, true));
  if (this === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return false;
  return E || !has(this, key) || !has(AllSymbols, key) || has(this, HIDDEN) && this[HIDDEN][key] ? E : true;
};
var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(it, key) {
  it = toIObject(it);
  key = toPrimitive(key, true);
  if (it === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return;
  var D = gOPD(it, key);
  if (D && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key])) D.enumerable = true;
  return D;
};
var $getOwnPropertyNames = function getOwnPropertyNames(it) {
  var names = gOPN(toIObject(it));
  var result = [];
  var i = 0;
  var key;
  while (names.length > i) {
    if (!has(AllSymbols, key = names[i++]) && key != HIDDEN && key != META) result.push(key);
  } return result;
};
var $getOwnPropertySymbols = function getOwnPropertySymbols(it) {
  var IS_OP = it === ObjectProto;
  var names = gOPN(IS_OP ? OPSymbols : toIObject(it));
  var result = [];
  var i = 0;
  var key;
  while (names.length > i) {
    if (has(AllSymbols, key = names[i++]) && (IS_OP ? has(ObjectProto, key) : true)) result.push(AllSymbols[key]);
  } return result;
};

// 19.4.1.1 Symbol([description])
if (!USE_NATIVE) {
  $Symbol = function Symbol() {
    if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor!');
    var tag = uid(arguments.length > 0 ? arguments[0] : undefined);
    var $set = function (value) {
      if (this === ObjectProto) $set.call(OPSymbols, value);
      if (has(this, HIDDEN) && has(this[HIDDEN], tag)) this[HIDDEN][tag] = false;
      setSymbolDesc(this, tag, createDesc(1, value));
    };
    if (DESCRIPTORS && setter) setSymbolDesc(ObjectProto, tag, { configurable: true, set: $set });
    return wrap(tag);
  };
  redefine($Symbol[PROTOTYPE], 'toString', function toString() {
    return this._k;
  });

  $GOPD.f = $getOwnPropertyDescriptor;
  $DP.f = $defineProperty;
  require('./_object-gopn').f = gOPNExt.f = $getOwnPropertyNames;
  require('./_object-pie').f = $propertyIsEnumerable;
  require('./_object-gops').f = $getOwnPropertySymbols;

  if (DESCRIPTORS && !require('./_library')) {
    redefine(ObjectProto, 'propertyIsEnumerable', $propertyIsEnumerable, true);
  }

  wksExt.f = function (name) {
    return wrap(wks(name));
  };
}

$export($export.G + $export.W + $export.F * !USE_NATIVE, { Symbol: $Symbol });

for (var es6Symbols = (
  // 19.4.2.2, 19.4.2.3, 19.4.2.4, 19.4.2.6, 19.4.2.8, 19.4.2.9, 19.4.2.10, 19.4.2.11, 19.4.2.12, 19.4.2.13, 19.4.2.14
  'hasInstance,isConcatSpreadable,iterator,match,replace,search,species,split,toPrimitive,toStringTag,unscopables'
).split(','), j = 0; es6Symbols.length > j;)wks(es6Symbols[j++]);

for (var wellKnownSymbols = $keys(wks.store), k = 0; wellKnownSymbols.length > k;) wksDefine(wellKnownSymbols[k++]);

$export($export.S + $export.F * !USE_NATIVE, 'Symbol', {
  // 19.4.2.1 Symbol.for(key)
  'for': function (key) {
    return has(SymbolRegistry, key += '')
      ? SymbolRegistry[key]
      : SymbolRegistry[key] = $Symbol(key);
  },
  // 19.4.2.5 Symbol.keyFor(sym)
  keyFor: function keyFor(sym) {
    if (!isSymbol(sym)) throw TypeError(sym + ' is not a symbol!');
    for (var key in SymbolRegistry) if (SymbolRegistry[key] === sym) return key;
  },
  useSetter: function () { setter = true; },
  useSimple: function () { setter = false; }
});

$export($export.S + $export.F * !USE_NATIVE, 'Object', {
  // 19.1.2.2 Object.create(O [, Properties])
  create: $create,
  // 19.1.2.4 Object.defineProperty(O, P, Attributes)
  defineProperty: $defineProperty,
  // 19.1.2.3 Object.defineProperties(O, Properties)
  defineProperties: $defineProperties,
  // 19.1.2.6 Object.getOwnPropertyDescriptor(O, P)
  getOwnPropertyDescriptor: $getOwnPropertyDescriptor,
  // 19.1.2.7 Object.getOwnPropertyNames(O)
  getOwnPropertyNames: $getOwnPropertyNames,
  // 19.1.2.8 Object.getOwnPropertySymbols(O)
  getOwnPropertySymbols: $getOwnPropertySymbols
});

// 24.3.2 JSON.stringify(value [, replacer [, space]])
$JSON && $export($export.S + $export.F * (!USE_NATIVE || $fails(function () {
  var S = $Symbol();
  // MS Edge converts symbol values to JSON as {}
  // WebKit converts symbol values to JSON as null
  // V8 throws on boxed symbols
  return _stringify([S]) != '[null]' || _stringify({ a: S }) != '{}' || _stringify(Object(S)) != '{}';
})), 'JSON', {
  stringify: function stringify(it) {
    if (it === undefined || isSymbol(it)) return; // IE8 returns string on undefined
    var args = [it];
    var i = 1;
    var replacer, $replacer;
    while (arguments.length > i) args.push(arguments[i++]);
    replacer = args[1];
    if (typeof replacer == 'function') $replacer = replacer;
    if ($replacer || !isArray(replacer)) replacer = function (key, value) {
      if ($replacer) value = $replacer.call(this, key, value);
      if (!isSymbol(value)) return value;
    };
    args[1] = replacer;
    return _stringify.apply($JSON, args);
  }
});

// 19.4.3.4 Symbol.prototype[@@toPrimitive](hint)
$Symbol[PROTOTYPE][TO_PRIMITIVE] || require('./_hide')($Symbol[PROTOTYPE], TO_PRIMITIVE, $Symbol[PROTOTYPE].valueOf);
// 19.4.3.5 Symbol.prototype[@@toStringTag]
setToStringTag($Symbol, 'Symbol');
// 20.2.1.9 Math[@@toStringTag]
setToStringTag(Math, 'Math', true);
// 24.3.3 JSON[@@toStringTag]
setToStringTag(global.JSON, 'JSON', true);

},{"./_an-object":54,"./_descriptors":62,"./_enum-keys":65,"./_export":66,"./_fails":67,"./_global":68,"./_has":69,"./_hide":70,"./_is-array":76,"./_library":84,"./_meta":85,"./_object-create":87,"./_object-dp":88,"./_object-gopd":90,"./_object-gopn":92,"./_object-gopn-ext":91,"./_object-gops":93,"./_object-keys":96,"./_object-pie":97,"./_property-desc":99,"./_redefine":100,"./_set-to-string-tag":101,"./_shared":103,"./_to-iobject":108,"./_to-primitive":111,"./_uid":112,"./_wks":115,"./_wks-define":113,"./_wks-ext":114}],130:[function(require,module,exports){
require('./_wks-define')('asyncIterator');

},{"./_wks-define":113}],131:[function(require,module,exports){
require('./_wks-define')('observable');

},{"./_wks-define":113}],132:[function(require,module,exports){
require('./es6.array.iterator');
var global = require('./_global');
var hide = require('./_hide');
var Iterators = require('./_iterators');
var TO_STRING_TAG = require('./_wks')('toStringTag');

var DOMIterables = ('CSSRuleList,CSSStyleDeclaration,CSSValueList,ClientRectList,DOMRectList,DOMStringList,' +
  'DOMTokenList,DataTransferItemList,FileList,HTMLAllCollection,HTMLCollection,HTMLFormElement,HTMLSelectElement,' +
  'MediaList,MimeTypeArray,NamedNodeMap,NodeList,PaintRequestList,Plugin,PluginArray,SVGLengthList,SVGNumberList,' +
  'SVGPathSegList,SVGPointList,SVGStringList,SVGTransformList,SourceBufferList,StyleSheetList,TextTrackCueList,' +
  'TextTrackList,TouchList').split(',');

for (var i = 0; i < DOMIterables.length; i++) {
  var NAME = DOMIterables[i];
  var Collection = global[NAME];
  var proto = Collection && Collection.prototype;
  if (proto && !proto[TO_STRING_TAG]) hide(proto, TO_STRING_TAG, NAME);
  Iterators[NAME] = Iterators.Array;
}

},{"./_global":68,"./_hide":70,"./_iterators":83,"./_wks":115,"./es6.array.iterator":118}],133:[function(require,module,exports){
var $export = require('./_export');
var $task = require('./_task');
$export($export.G + $export.B, {
  setImmediate: $task.set,
  clearImmediate: $task.clear
});

},{"./_export":66,"./_task":105}],134:[function(require,module,exports){
(function (Buffer){
'use strict';

var _typeof2 = require('babel-runtime/helpers/typeof');

var _typeof3 = _interopRequireDefault(_typeof2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// 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 === 'undefined' ? 'undefined' : (0, _typeof3.default)(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 === 'undefined' ? 'undefined' : (0, _typeof3.default)(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 === 'undefined' ? 'undefined' : (0, _typeof3.default)(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":150,"babel-runtime/helpers/typeof":26}],135:[function(require,module,exports){
var Buffer = require('buffer').Buffer;
var intSize = 4;
var zeroBuffer = new Buffer(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 = new Buffer(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 = new Buffer(buf);
  var arr = fn(toArray(buf, bigEndian), buf.length * chrsz);
  return toBuffer(arr, hashSize, bigEndian);
}

module.exports = { hash: hash };

},{"buffer":31}],136:[function(require,module,exports){
var Buffer = require('buffer').Buffer
var sha = require('./sha')
var sha256 = require('./sha256')
var rng = require('./rng')
var md5 = require('./md5')

var algorithms = {
  sha1: sha,
  sha256: sha256,
  md5: md5
}

var blocksize = 64
var zeroBuffer = new Buffer(blocksize); zeroBuffer.fill(0)
function hmac(fn, key, data) {
  if(!Buffer.isBuffer(key)) key = new Buffer(key)
  if(!Buffer.isBuffer(data)) data = new Buffer(data)

  if(key.length > blocksize) {
    key = fn(key)
  } else if(key.length < blocksize) {
    key = Buffer.concat([key, zeroBuffer], blocksize)
  }

  var ipad = new Buffer(blocksize), opad = new Buffer(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 (data) {
      if(!Buffer.isBuffer(data)) data = new Buffer(data)
        
      bufs.push(data)
      length += data.length
      return this
    },
    digest: function (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.randomBytes = function(size, callback) {
  if (callback && callback.call) {
    try {
      callback.call(this, undefined, new Buffer(rng(size)))
    } catch (err) { callback(err) }
  } else {
    return new Buffer(rng(size))
  }
}

function each(a, f) {
  for(var i in a)
    f(a[i], i)
}

// the least I can do is make error messages for the rest of the node.js/crypto api.
each(['createCredentials'
, 'createCipher'
, 'createCipheriv'
, 'createDecipher'
, 'createDecipheriv'
, 'createSign'
, 'createVerify'
, 'createDiffieHellman'
, 'pbkdf2'], function (name) {
  exports[name] = function () {
    error('sorry,', name, 'is not implemented yet')
  }
})

},{"./md5":137,"./rng":138,"./sha":139,"./sha256":140,"buffer":31}],137:[function(require,module,exports){
/*
 * 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":135}],138:[function(require,module,exports){
// Original code adapted from Robert Kieffer.
// details at https://github.com/broofa/node-uuid
(function() {
  var _global = this;

  var mathRNG, whatwgRNG;

  // NOTE: Math.random() does not guarantee "cryptographic quality"
  mathRNG = function(size) {
    var bytes = new Array(size);
    var r;

    for (var i = 0, r; i < size; i++) {
      if ((i & 0x03) == 0) r = Math.random() * 0x100000000;
      bytes[i] = r >>> ((i & 0x03) << 3) & 0xff;
    }

    return bytes;
  }

  if (_global.crypto && crypto.getRandomValues) {
    whatwgRNG = function(size) {
      var bytes = new Uint8Array(size);
      crypto.getRandomValues(bytes);
      return bytes;
    }
  }

  module.exports = whatwgRNG || mathRNG;

}())

},{}],139:[function(require,module,exports){
/*
 * 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":135}],140:[function(require,module,exports){

/**
 * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
 * in FIPS 180-2
 * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 *
 */

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

var safe_add = function(x, y) {
  var lsw = (x & 0xFFFF) + (y & 0xFFFF);
  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
  return (msw << 16) | (lsw & 0xFFFF);
};

var S = function(X, n) {
  return (X >>> n) | (X << (32 - n));
};

var R = function(X, n) {
  return (X >>> n);
};

var Ch = function(x, y, z) {
  return ((x & y) ^ ((~x) & z));
};

var Maj = function(x, y, z) {
  return ((x & y) ^ (x & z) ^ (y & z));
};

var Sigma0256 = function(x) {
  return (S(x, 2) ^ S(x, 13) ^ S(x, 22));
};

var Sigma1256 = function(x) {
  return (S(x, 6) ^ S(x, 11) ^ S(x, 25));
};

var Gamma0256 = function(x) {
  return (S(x, 7) ^ S(x, 18) ^ R(x, 3));
};

var Gamma1256 = function(x) {
  return (S(x, 17) ^ S(x, 19) ^ R(x, 10));
};

var core_sha256 = function(m, l) {
  var K = new Array(0x428A2F98,0x71374491,0xB5C0FBCF,0xE9B5DBA5,0x3956C25B,0x59F111F1,0x923F82A4,0xAB1C5ED5,0xD807AA98,0x12835B01,0x243185BE,0x550C7DC3,0x72BE5D74,0x80DEB1FE,0x9BDC06A7,0xC19BF174,0xE49B69C1,0xEFBE4786,0xFC19DC6,0x240CA1CC,0x2DE92C6F,0x4A7484AA,0x5CB0A9DC,0x76F988DA,0x983E5152,0xA831C66D,0xB00327C8,0xBF597FC7,0xC6E00BF3,0xD5A79147,0x6CA6351,0x14292967,0x27B70A85,0x2E1B2138,0x4D2C6DFC,0x53380D13,0x650A7354,0x766A0ABB,0x81C2C92E,0x92722C85,0xA2BFE8A1,0xA81A664B,0xC24B8B70,0xC76C51A3,0xD192E819,0xD6990624,0xF40E3585,0x106AA070,0x19A4C116,0x1E376C08,0x2748774C,0x34B0BCB5,0x391C0CB3,0x4ED8AA4A,0x5B9CCA4F,0x682E6FF3,0x748F82EE,0x78A5636F,0x84C87814,0x8CC70208,0x90BEFFFA,0xA4506CEB,0xBEF9A3F7,0xC67178F2);
  var HASH = new Array(0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A, 0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19);
    var W = new Array(64);
    var a, b, c, d, e, f, g, h, i, j;
    var T1, T2;
  /* append padding */
  m[l >> 5] |= 0x80 << (24 - l % 32);
  m[((l + 64 >> 9) << 4) + 15] = l;
  for (var i = 0; i < m.length; i += 16) {
    a = HASH[0]; b = HASH[1]; c = HASH[2]; d = HASH[3]; e = HASH[4]; f = HASH[5]; g = HASH[6]; h = HASH[7];
    for (var j = 0; j < 64; j++) {
      if (j < 16) {
        W[j] = m[j + i];
      } else {
        W[j] = safe_add(safe_add(safe_add(Gamma1256(W[j - 2]), W[j - 7]), Gamma0256(W[j - 15])), W[j - 16]);
      }
      T1 = safe_add(safe_add(safe_add(safe_add(h, Sigma1256(e)), Ch(e, f, g)), K[j]), W[j]);
      T2 = safe_add(Sigma0256(a), Maj(a, b, c));
      h = g; g = f; f = e; e = safe_add(d, T1); d = c; c = b; b = a; a = safe_add(T1, T2);
    }
    HASH[0] = safe_add(a, HASH[0]); HASH[1] = safe_add(b, HASH[1]); HASH[2] = safe_add(c, HASH[2]); HASH[3] = safe_add(d, HASH[3]);
    HASH[4] = safe_add(e, HASH[4]); HASH[5] = safe_add(f, HASH[5]); HASH[6] = safe_add(g, HASH[6]); HASH[7] = safe_add(h, HASH[7]);
  }
  return HASH;
};

module.exports = function sha256(buf) {
  return helpers.hash(buf, core_sha256, 32, true);
};

},{"./helpers":135}],141:[function(require,module,exports){
'use strict';

var _typeof2 = require('babel-runtime/helpers/typeof');

var _typeof3 = _interopRequireDefault(_typeof2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/*
 * 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 === 'undefined' ? 'undefined' : (0, _typeof3.default)(val)) !== 'object') {
      return typeof val === 'undefined' ? 'undefined' : (0, _typeof3.default)(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 === 'undefined' ? 'undefined' : (0, _typeof3.default)(exports)) === 'object') {
    module.exports = dateFormat;
  } else {
    global.dateFormat = dateFormat;
  }
})(undefined);

},{"babel-runtime/helpers/typeof":26}],142:[function(require,module,exports){
(function (process){
/**
 * This is the web browser implementation of `debug()`.
 *
 * Expose `debug()` as the module.
 */

exports = module.exports = require('./debug');
exports.log = log;
exports.formatArgs = formatArgs;
exports.save = save;
exports.load = load;
exports.useColors = useColors;
exports.storage = 'undefined' != typeof chrome
               && 'undefined' != typeof chrome.storage
                  ? chrome.storage.local
                  : localstorage();

/**
 * Colors.
 */

exports.colors = [
  'lightseagreen',
  'forestgreen',
  'goldenrod',
  'dodgerblue',
  'darkorchid',
  'crimson'
];

/**
 * Currently only WebKit-based Web Inspectors, Firefox >= v31,
 * and the Firebug extension (any Firefox version) are known
 * to support "%c" CSS customizations.
 *
 * TODO: add a `localStorage` variable to explicitly enable/disable colors
 */

function useColors() {
  // NB: In an Electron preload script, document will be defined but not fully
  // initialized. Since we know we're in Chrome, we'll just detect this case
  // explicitly
  if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {
    return true;
  }

  // is webkit? http://stackoverflow.com/a/16459606/376773
  // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
  return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
    // is firebug? http://stackoverflow.com/a/398120/376773
    (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
    // is firefox >= v31?
    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
    // double check webkit in userAgent just in case we are in a worker
    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
}

/**
 * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
 */

exports.formatters.j = function(v) {
  try {
    return JSON.stringify(v);
  } catch (err) {
    return '[UnexpectedJSONParseError]: ' + err.message;
  }
};


/**
 * Colorize log arguments if enabled.
 *
 * @api public
 */

function formatArgs(args) {
  var useColors = this.useColors;

  args[0] = (useColors ? '%c' : '')
    + this.namespace
    + (useColors ? ' %c' : ' ')
    + args[0]
    + (useColors ? '%c ' : ' ')
    + '+' + exports.humanize(this.diff);

  if (!useColors) return;

  var c = 'color: ' + this.color;
  args.splice(1, 0, c, 'color: inherit')

  // the final "%c" is somewhat tricky, because there could be other
  // arguments passed either before or after the %c, so we need to
  // figure out the correct index to insert the CSS into
  var index = 0;
  var lastC = 0;
  args[0].replace(/%[a-zA-Z%]/g, function(match) {
    if ('%%' === match) return;
    index++;
    if ('%c' === match) {
      // we only are interested in the *last* %c
      // (the user may have provided their own)
      lastC = index;
    }
  });

  args.splice(lastC, 0, c);
}

/**
 * Invokes `console.log()` when available.
 * No-op when `console.log` is not a "function".
 *
 * @api public
 */

function log() {
  // this hackery is required for IE8/9, where
  // the `console.log` function doesn't have 'apply'
  return 'object' === typeof console
    && console.log
    && Function.prototype.apply.call(console.log, console, arguments);
}

/**
 * Save `namespaces`.
 *
 * @param {String} namespaces
 * @api private
 */

function save(namespaces) {
  try {
    if (null == namespaces) {
      exports.storage.removeItem('debug');
    } else {
      exports.storage.debug = namespaces;
    }
  } catch(e) {}
}

/**
 * Load `namespaces`.
 *
 * @return {String} returns the previously persisted debug modes
 * @api private
 */

function load() {
  var r;
  try {
    r = exports.storage.debug;
  } catch(e) {}

  // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
  if (!r && typeof process !== 'undefined' && 'env' in process) {
    r = process.env.DEBUG;
  }

  return r;
}

/**
 * Enable namespaces listed in `localStorage.debug` initially.
 */

exports.enable(load());

/**
 * Localstorage attempts to return the localstorage.
 *
 * This is necessary because safari throws
 * when a user disables cookies/localstorage
 * and you attempt to access it.
 *
 * @return {LocalStorage}
 * @api private
 */

function localstorage() {
  try {
    return window.localStorage;
  } catch (e) {}
}

}).call(this,require('_process'))
},{"./debug":143,"_process":159}],143:[function(require,module,exports){

/**
 * This is the common logic for both the Node.js and web browser
 * implementations of `debug()`.
 *
 * Expose `debug()` as the module.
 */

exports = module.exports = createDebug.debug = createDebug['default'] = createDebug;
exports.coerce = coerce;
exports.disable = disable;
exports.enable = enable;
exports.enabled = enabled;
exports.humanize = require('ms');

/**
 * The currently active debug mode names, and names to skip.
 */

exports.names = [];
exports.skips = [];

/**
 * Map of special "%n" handling functions, for the debug "format" argument.
 *
 * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
 */

exports.formatters = {};

/**
 * Previous log timestamp.
 */

var prevTime;

/**
 * Select a color.
 * @param {String} namespace
 * @return {Number}
 * @api private
 */

function selectColor(namespace) {
  var hash = 0, i;

  for (i in namespace) {
    hash  = ((hash << 5) - hash) + namespace.charCodeAt(i);
    hash |= 0; // Convert to 32bit integer
  }

  return exports.colors[Math.abs(hash) % exports.colors.length];
}

/**
 * Create a debugger with the given `namespace`.
 *
 * @param {String} namespace
 * @return {Function}
 * @api public
 */

function createDebug(namespace) {

  function debug() {
    // disabled?
    if (!debug.enabled) return;

    var self = debug;

    // set `diff` timestamp
    var curr = +new Date();
    var ms = curr - (prevTime || curr);
    self.diff = ms;
    self.prev = prevTime;
    self.curr = curr;
    prevTime = curr;

    // turn the `arguments` into a proper Array
    var args = new Array(arguments.length);
    for (var i = 0; i < args.length; i++) {
      args[i] = arguments[i];
    }

    args[0] = exports.coerce(args[0]);

    if ('string' !== typeof args[0]) {
      // anything else let's inspect with %O
      args.unshift('%O');
    }

    // apply any `formatters` transformations
    var index = 0;
    args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {
      // if we encounter an escaped % then don't increase the array index
      if (match === '%%') return match;
      index++;
      var formatter = exports.formatters[format];
      if ('function' === typeof formatter) {
        var val = args[index];
        match = formatter.call(self, val);

        // now we need to remove `args[index]` since it's inlined in the `format`
        args.splice(index, 1);
        index--;
      }
      return match;
    });

    // apply env-specific formatting (colors, etc.)
    exports.formatArgs.call(self, args);

    var logFn = debug.log || exports.log || console.log.bind(console);
    logFn.apply(self, args);
  }

  debug.namespace = namespace;
  debug.enabled = exports.enabled(namespace);
  debug.useColors = exports.useColors();
  debug.color = selectColor(namespace);

  // env-specific initialization logic for debug instances
  if ('function' === typeof exports.init) {
    exports.init(debug);
  }

  return debug;
}

/**
 * Enables a debug mode by namespaces. This can include modes
 * separated by a colon and wildcards.
 *
 * @param {String} namespaces
 * @api public
 */

function enable(namespaces) {
  exports.save(namespaces);

  exports.names = [];
  exports.skips = [];

  var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
  var len = split.length;

  for (var i = 0; i < len; i++) {
    if (!split[i]) continue; // ignore empty strings
    namespaces = split[i].replace(/\*/g, '.*?');
    if (namespaces[0] === '-') {
      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
    } else {
      exports.names.push(new RegExp('^' + namespaces + '$'));
    }
  }
}

/**
 * Disable debug output.
 *
 * @api public
 */

function disable() {
  exports.enable('');
}

/**
 * Returns true if the given mode name is enabled, false otherwise.
 *
 * @param {String} name
 * @return {Boolean}
 * @api public
 */

function enabled(name) {
  var i, len;
  for (i = 0, len = exports.skips.length; i < len; i++) {
    if (exports.skips[i].test(name)) {
      return false;
    }
  }
  for (i = 0, len = exports.names.length; i < len; i++) {
    if (exports.names[i].test(name)) {
      return true;
    }
  }
  return false;
}

/**
 * Coerce `val`.
 *
 * @param {Mixed} val
 * @return {Mixed}
 * @api private
 */

function coerce(val) {
  if (val instanceof Error) return val.stack || val.message;
  return val;
}

},{"ms":155}],144:[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;
}

},{}],145:[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.

function EventEmitter() {
  this._events = this._events || {};
  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.
EventEmitter.defaultMaxListeners = 10;

// 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(n) {
  if (!isNumber(n) || n < 0 || isNaN(n))
    throw TypeError('n must be a positive number');
  this._maxListeners = n;
  return this;
};

EventEmitter.prototype.emit = function(type) {
  var er, handler, len, args, i, listeners;

  if (!this._events)
    this._events = {};

  // If there is no 'error' event listener then throw.
  if (type === 'error') {
    if (!this._events.error ||
        (isObject(this._events.error) && !this._events.error.length)) {
      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('Uncaught, unspecified "error" event. (' + er + ')');
        err.context = er;
        throw err;
      }
    }
  }

  handler = this._events[type];

  if (isUndefined(handler))
    return false;

  if (isFunction(handler)) {
    switch (arguments.length) {
      // fast cases
      case 1:
        handler.call(this);
        break;
      case 2:
        handler.call(this, arguments[1]);
        break;
      case 3:
        handler.call(this, arguments[1], arguments[2]);
        break;
      // slower
      default:
        args = Array.prototype.slice.call(arguments, 1);
        handler.apply(this, args);
    }
  } else if (isObject(handler)) {
    args = Array.prototype.slice.call(arguments, 1);
    listeners = handler.slice();
    len = listeners.length;
    for (i = 0; i < len; i++)
      listeners[i].apply(this, args);
  }

  return true;
};

EventEmitter.prototype.addListener = function(type, listener) {
  var m;

  if (!isFunction(listener))
    throw TypeError('listener must be a function');

  if (!this._events)
    this._events = {};

  // To avoid recursion in the case that type === "newListener"! Before
  // adding it to the listeners, first emit "newListener".
  if (this._events.newListener)
    this.emit('newListener', type,
              isFunction(listener.listener) ?
              listener.listener : listener);

  if (!this._events[type])
    // Optimize the case of one listener. Don't need the extra array object.
    this._events[type] = listener;
  else if (isObject(this._events[type]))
    // If we've already got an array, just append.
    this._events[type].push(listener);
  else
    // Adding the second element, need to change to array.
    this._events[type] = [this._events[type], listener];

  // Check for listener leak
  if (isObject(this._events[type]) && !this._events[type].warned) {
    if (!isUndefined(this._maxListeners)) {
      m = this._maxListeners;
    } else {
      m = EventEmitter.defaultMaxListeners;
    }

    if (m && m > 0 && this._events[type].length > m) {
      this._events[type].warned = true;
      console.error('(node) warning: possible EventEmitter memory ' +
                    'leak detected. %d listeners added. ' +
                    'Use emitter.setMaxListeners() to increase limit.',
                    this._events[type].length);
      if (typeof console.trace === 'function') {
        // not supported in IE 10
        console.trace();
      }
    }
  }

  return this;
};

EventEmitter.prototype.on = EventEmitter.prototype.addListener;

EventEmitter.prototype.once = function(type, listener) {
  if (!isFunction(listener))
    throw TypeError('listener must be a function');

  var fired = false;

  function g() {
    this.removeListener(type, g);

    if (!fired) {
      fired = true;
      listener.apply(this, arguments);
    }
  }

  g.listener = listener;
  this.on(type, g);

  return this;
};

// emits a 'removeListener' event iff the listener was removed
EventEmitter.prototype.removeListener = function(type, listener) {
  var list, position, length, i;

  if (!isFunction(listener))
    throw TypeError('listener must be a function');

  if (!this._events || !this._events[type])
    return this;

  list = this._events[type];
  length = list.length;
  position = -1;

  if (list === listener ||
      (isFunction(list.listener) && list.listener === listener)) {
    delete this._events[type];
    if (this._events.removeListener)
      this.emit('removeListener', type, listener);

  } else if (isObject(list)) {
    for (i = length; i-- > 0;) {
      if (list[i] === listener ||
          (list[i].listener && list[i].listener === listener)) {
        position = i;
        break;
      }
    }

    if (position < 0)
      return this;

    if (list.length === 1) {
      list.length = 0;
      delete this._events[type];
    } else {
      list.splice(position, 1);
    }

    if (this._events.removeListener)
      this.emit('removeListener', type, listener);
  }

  return this;
};

EventEmitter.prototype.removeAllListeners = function(type) {
  var key, listeners;

  if (!this._events)
    return this;

  // not listening for removeListener, no need to emit
  if (!this._events.removeListener) {
    if (arguments.length === 0)
      this._events = {};
    else if (this._events[type])
      delete this._events[type];
    return this;
  }

  // emit removeListener for all listeners on all events
  if (arguments.length === 0) {
    for (key in this._events) {
      if (key === 'removeListener') continue;
      this.removeAllListeners(key);
    }
    this.removeAllListeners('removeListener');
    this._events = {};
    return this;
  }

  listeners = this._events[type];

  if (isFunction(listeners)) {
    this.removeListener(type, listeners);
  } else if (listeners) {
    // LIFO order
    while (listeners.length)
      this.removeListener(type, listeners[listeners.length - 1]);
  }
  delete this._events[type];

  return this;
};

EventEmitter.prototype.listeners = function(type) {
  var ret;
  if (!this._events || !this._events[type])
    ret = [];
  else if (isFunction(this._events[type]))
    ret = [this._events[type]];
  else
    ret = this._events[type].slice();
  return ret;
};

EventEmitter.prototype.listenerCount = function(type) {
  if (this._events) {
    var evlistener = this._events[type];

    if (isFunction(evlistener))
      return 1;
    else if (evlistener)
      return evlistener.length;
  }
  return 0;
};

EventEmitter.listenerCount = function(emitter, type) {
  return emitter.listenerCount(type);
};

function isFunction(arg) {
  return typeof arg === 'function';
}

function isNumber(arg) {
  return typeof arg === 'number';
}

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}

function isUndefined(arg) {
  return arg === void 0;
}

},{}],146:[function(require,module,exports){
var http = require('http');

var https = module.exports;

for (var key in http) {
    if (http.hasOwnProperty(key)) https[key] = http[key];
};

https.request = function (params, cb) {
    if (!params) params = {};
    params.scheme = 'https';
    params.protocol = 'https:';
    return http.request.call(this, params, cb);
}

},{"http":184}],147:[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":155,"util":196}],148:[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
}

},{}],149:[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
  }
}

},{}],150:[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))
}

},{}],151:[function(require,module,exports){
(function(root) {
  var toString = Function.prototype.toString;

  function fnBody(fn) {
    return toString.call(fn).replace(/^[^{]*{\s*/,'').replace(/\s*}[^}]*$/,'');
  }

  function isClass(fn) {
    return (typeof fn === 'function' &&
            (/^class\s/.test(toString.call(fn)) ||
              (/^.*classCallCheck\(/.test(fnBody(fn)))) // babel.js
            );
  }

  if (typeof exports !== 'undefined') {
    if (typeof module !== 'undefined' && module.exports) {
      exports = module.exports = isClass;
    }
    exports.isClass = isClass;
  } else if (typeof define === 'function' && define.amd) {
    define([], function() {
      return isClass;
    });
  } else {
    root.isClass = isClass;
  }

})(this);


},{}],152:[function(require,module,exports){
'use strict';

var utils = require('core-util-is');
var isStearm = require('isstream');
var isClass = require('is-class');

/**
 * Expose all methods in core-util-is
 */

Object.keys(utils).map(function (name) {
  exports[transform(name)] = utils[name];
});

/**
 * Stream detected by isstream
 */

exports.stream = isStearm;
exports.readableStream = isStearm.isReadable;
exports.writableStream = isStearm.isWritable;
exports.duplexStream = isStearm.isDuplex;

/**
 * Class detected by is-class
 */
 exports.class = isClass;

/**
 * Extend method
 */

exports.finite = function (obj) {
  return Number.isFinite(obj);
};

exports.NaN = function (obj) {
  return Number.isNaN(obj);
};

exports.generator = function (obj) {
  return obj
    && 'function' === typeof obj.next
    && 'function' === typeof obj.throw;
};

exports.generatorFunction = function (obj) {
  return obj
    && obj.constructor
    && 'GeneratorFunction' === obj.constructor.name;
};

exports.asyncFunction = function (obj) {
  return obj
    && obj.constructor
    && 'AsyncFunction' === obj.constructor.name;
};

exports.promise = function (obj) {
  return obj
    && 'function' === typeof obj.then;
};

var MAX_INT_31 = Math.pow(2, 31);

exports.int = function (obj) {
  return utils.isNumber(obj)
    && obj % 1 === 0;
};

exports.int32 = function (obj) {
  return exports.int(obj)
    && obj < MAX_INT_31
    && obj >= -MAX_INT_31;
};

exports.long = function (obj) {
  return exports.int(obj)
    && (obj >= MAX_INT_31 || obj < -MAX_INT_31);
};

exports.Long = function (obj) {
  return exports.object(obj)
    && exports.number(obj.high)
    && exports.number(obj.low);
};

exports.double = function (obj) {
  return utils.isNumber(obj)
    && !isNaN(obj)
    && obj % 1 !== 0;
};

/**
 * override core-util-is
 */

exports.date = function isDate(obj) {
  return obj instanceof Date;
};

exports.regExp = function isRegExp(obj) {
  return obj instanceof RegExp;
};
exports.regexp = exports.regExp;

exports.error = function isError(obj) {
  return obj instanceof Error;
};

exports.array = function isArray(obj) {
  return Array.isArray(obj);
};

/**
 * transform isNull type to null
 * @param {[type]} m [description]
 * @return {[type]} [description]
 */

function transform(m) {
  var name = m.slice(2);
  name = name[0].toLowerCase() + name.slice(1);
  return name;
}

},{"core-util-is":134,"is-class":151,"isstream":153}],153:[function(require,module,exports){
var stream = require('stream')


function isStream (obj) {
  return obj instanceof stream.Stream
}


function isReadable (obj) {
  return isStream(obj) && typeof obj._read == 'function' && typeof obj._readableState == 'object'
}


function isWritable (obj) {
  return isStream(obj) && typeof obj._write == 'function' && typeof obj._writableState == 'object'
}


function isDuplex (obj) {
  return isReadable(obj) && isWritable(obj)
}


module.exports            = isStream
module.exports.isReadable = isReadable
module.exports.isWritable = isWritable
module.exports.isDuplex   = isDuplex

},{"stream":183}],154:[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
}

},{}],155:[function(require,module,exports){
/**
 * Helpers.
 */

var s = 1000;
var m = s * 60;
var h = m * 60;
var d = h * 24;
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' && isNaN(val) === false) {
    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|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 '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) {
  if (ms >= d) {
    return Math.round(ms / d) + 'd';
  }
  if (ms >= h) {
    return Math.round(ms / h) + 'h';
  }
  if (ms >= m) {
    return Math.round(ms / m) + 'm';
  }
  if (ms >= s) {
    return Math.round(ms / s) + 's';
  }
  return ms + 'ms';
}

/**
 * Long format for `ms`.
 *
 * @param {Number} ms
 * @return {String}
 * @api private
 */

function fmtLong(ms) {
  return plural(ms, d, 'day') ||
    plural(ms, h, 'hour') ||
    plural(ms, m, 'minute') ||
    plural(ms, s, 'second') ||
    ms + ' ms';
}

/**
 * Pluralization helper.
 */

function plural(ms, n, name) {
  if (ms < n) {
    return;
  }
  if (ms < n * 1.5) {
    return Math.floor(ms / n) + ' ' + name;
  }
  return Math.ceil(ms / n) + ' ' + name + 's';
}

},{}],156:[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.

// 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;
}

// Split a filename into [root, dir, basename, ext], unix version
// 'root' is just a slash, or nothing.
var splitPathRe =
    /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
var splitPath = function(filename) {
  return splitPathRe.exec(filename).slice(1);
};

// 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) {
  var result = splitPath(path),
      root = result[0],
      dir = result[1];

  if (!root && !dir) {
    // No dirname whatsoever
    return '.';
  }

  if (dir) {
    // It has a dirname, strip trailing slash
    dir = dir.substr(0, dir.length - 1);
  }

  return root + dir;
};


exports.basename = function(path, ext) {
  var f = splitPath(path)[2];
  // TODO: make this comparison case-insensitive on windows?
  if (ext && f.substr(-1 * ext.length) === ext) {
    f = f.substr(0, f.length - ext.length);
  }
  return f;
};


exports.extname = function(path) {
  return splitPath(path)[3];
};

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":159}],157:[function(require,module,exports){
(function (global){
/*!
 * Platform.js <https://mths.be/platform>
 * Copyright 2014-2016 Benjamin Tan <https://demoneaux.github.io/>
 * 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 (isModuleScope && isHostType(context, 'system') && (data = [context.system])[0]) {
          os || (os = data[0].os || null);
          try {
            data[1] = context.require('ringo/engine').version;
            version = data[1].join('.');
            name = 'RingoJS';
          } catch(e) {
            if (data[0].global.system == context.system) {
              name = 'Narwhal';
            }
          }
        }
        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;
            }
          } else {
            name = 'Node.js';
            arch = data.arch;
            os = data.platform;
            version = /[\d.]+/.exec(data.version)
            version = version ? version[0] : 'unknown';
          }
        }
        else if (rhino) {
          name = 'Rhino';
        }
      }
      // 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 : {})
},{}],158:[function(require,module,exports){
(function (process){
'use strict';

if (!process.version ||
    process.version.indexOf('v0.') === 0 ||
    process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {
  module.exports = nextTick;
} else {
  module.exports = process.nextTick;
}

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":159}],159:[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; };

},{}],160:[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 : {})
},{}],161:[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]';
};

},{}],162:[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;
};

},{}],163:[function(require,module,exports){
'use strict';

exports.decode = exports.parse = require('./decode');
exports.encode = exports.stringify = require('./encode');

},{"./decode":161,"./encode":162}],164:[function(require,module,exports){
module.exports = require('./lib/_stream_duplex.js');

},{"./lib/_stream_duplex.js":165}],165:[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 _keys = require('babel-runtime/core-js/object/keys');

var _keys2 = _interopRequireDefault(_keys);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var processNextTick = require('process-nextick-args');
/*</replacement>*/

/*<replacement>*/
var objectKeys = _keys2.default || function (obj) {
  var keys = [];
  for (var key in obj) {
    keys.push(key);
  }return keys;
};
/*</replacement>*/

module.exports = Duplex;

/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/

var Readable = require('./_stream_readable');
var Writable = require('./_stream_writable');

util.inherits(Duplex, Readable);

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);
}

// 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.
  processNextTick(onEndNT, this);
}

function onEndNT(self) {
  self.end();
}

Object.defineProperty(Duplex.prototype, 'destroyed', {
  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;
  }
});

Duplex.prototype._destroy = function (err, cb) {
  this.push(null);
  this.end();

  processNextTick(cb, err);
};

function forEach(xs, f) {
  for (var i = 0, l = xs.length; i < l; i++) {
    f(xs[i], i);
  }
}

},{"./_stream_readable":167,"./_stream_writable":169,"babel-runtime/core-js/object/keys":18,"core-util-is":134,"inherits":149,"process-nextick-args":158}],166:[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 = 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":168,"core-util-is":134,"inherits":149}],167:[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 _getPrototypeOf = require('babel-runtime/core-js/object/get-prototype-of');

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var processNextTick = 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 EElistenerCount(emitter, type) {
  return emitter.listeners(type).length;
};
/*</replacement>*/

/*<replacement>*/
var Stream = require('./internal/streams/stream');
/*</replacement>*/

// TODO(bmeurer): Change this back to const once hole checks are
// properly optimized away early in Ignition+TurboFan.
/*<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 = 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 debug() {};
}
/*</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);
  } else {
    // 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 || {};

  // 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 (stream instanceof Duplex) 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 defaultHwm = this.objectMode ? 16 : 16 * 1024;
  this.highWaterMark = hwm || hwm === 0 ? hwm : 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 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) {
  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 && (0, _getPrototypeOf2.default)(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) processNextTick(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;
    processNextTick(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) processNextTick(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) {
        processNextTick(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;
    processNextTick(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 state = this._readableState;
  var paused = false;

  var self = this;
  stream.on('end', function () {
    debug('wrapped end');
    if (state.decoder && !state.ended) {
      var chunk = state.decoder.end();
      if (chunk && chunk.length) self.push(chunk);
    }

    self.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 = self.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], self.emit.bind(self, kProxyEvents[n]));
  }

  // when we try to consume some more bytes, simply unpause the
  // underlying stream.
  self._read = function (n) {
    debug('wrapped _read', n);
    if (paused) {
      paused = false;
      stream.resume();
    }
  };

  return self;
};

// 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;
    processNextTick(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 forEach(xs, f) {
  for (var i = 0, l = xs.length; i < l; i++) {
    f(xs[i], i);
  }
}

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":165,"./internal/streams/BufferList":170,"./internal/streams/destroy":171,"./internal/streams/stream":172,"_process":159,"babel-runtime/core-js/object/get-prototype-of":17,"core-util-is":134,"events":145,"inherits":149,"isarray":173,"process-nextick-args":158,"safe-buffer":181,"string_decoder/":174,"util":30}],168:[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 = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/

util.inherits(Transform, Duplex);

function TransformState(stream) {
  this.afterTransform = function (er, data) {
    return afterTransform(stream, er, data);
  };

  this.needTransform = false;
  this.transforming = false;
  this.writecb = null;
  this.writechunk = null;
  this.writeencoding = null;
}

function afterTransform(stream, er, data) {
  var ts = stream._transformState;
  ts.transforming = false;

  var cb = ts.writecb;

  if (!cb) {
    return stream.emit('error', new Error('write callback called multiple times'));
  }

  ts.writechunk = null;
  ts.writecb = null;

  if (data !== null && data !== undefined) stream.push(data);

  cb(er);

  var rs = stream._readableState;
  rs.reading = false;
  if (rs.needReadable || rs.length < rs.highWaterMark) {
    stream._read(rs.highWaterMark);
  }
}

function Transform(options) {
  if (!(this instanceof Transform)) return new Transform(options);

  Duplex.call(this, options);

  this._transformState = new TransformState(this);

  var stream = this;

  // 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.once('prefinish', function () {
    if (typeof this._flush === 'function') this._flush(function (er, data) {
      done(stream, er, data);
    });else done(stream);
  });
}

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 _this = this;

  Duplex.prototype._destroy.call(this, err, function (err2) {
    cb(err2);
    _this.emit('close');
  });
};

function done(stream, er, data) {
  if (er) return stream.emit('error', er);

  if (data !== null && data !== undefined) stream.push(data);

  // if there's nothing in the write buffer, then that means
  // that nothing more will ever be provided
  var ws = stream._writableState;
  var ts = stream._transformState;

  if (ws.length) throw new Error('Calling transform done when ws.length != 0');

  if (ts.transforming) throw new Error('Calling transform done when still transforming');

  return stream.push(null);
}

},{"./_stream_duplex":165,"core-util-is":134,"inherits":149}],169:[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';

/*<replacement>*/

var _defineProperty = require('babel-runtime/core-js/object/define-property');

var _defineProperty2 = _interopRequireDefault(_defineProperty);

var _hasInstance = require('babel-runtime/core-js/symbol/has-instance');

var _hasInstance2 = _interopRequireDefault(_hasInstance);

var _symbol = require('babel-runtime/core-js/symbol');

var _symbol2 = _interopRequireDefault(_symbol);

var _setImmediate2 = require('babel-runtime/core-js/set-immediate');

var _setImmediate3 = _interopRequireDefault(_setImmediate2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var processNextTick = 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 ? _setImmediate3.default : processNextTick;
/*</replacement>*/

/*<replacement>*/
var Duplex;
/*</replacement>*/

Writable.WritableState = WritableState;

/*<replacement>*/
var util = 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 || {};

  // object stream flag to indicate whether or not this stream
  // contains buffers or objects.
  this.objectMode = !!options.objectMode;

  if (stream instanceof Duplex) 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 defaultHwm = this.objectMode ? 16 : 16 * 1024;
  this.highWaterMark = hwm || hwm === 0 ? hwm : 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 _symbol2.default === 'function' && _hasInstance2.default && typeof Function.prototype[_hasInstance2.default] === 'function') {
  realHasInstance = Function.prototype[_hasInstance2.default];
  (0, _defineProperty2.default)(Writable, _hasInstance2.default, {
    value: function value(object) {
      if (realHasInstance.call(this, object)) return true;

      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.
  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);
  processNextTick(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);
    processNextTick(cb, er);
    valid = false;
  }
  return valid;
}

Writable.prototype.write = function (chunk, encoding, cb) {
  var state = this._writableState;
  var ret = false;
  var isBuf = _isUint8Array(chunk) && !state.objectMode;

  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;
}

// 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
    processNextTick(cb, er);
    // this can emit finish, and it will always happen
    // after error
    processNextTick(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);
    }
  } 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;
      // 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.bufferedRequestCount = 0;
  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;
      processNextTick(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) processNextTick(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 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) {
  this.end();
  cb(err);
};

}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./_stream_duplex":165,"./internal/streams/destroy":171,"./internal/streams/stream":172,"_process":159,"babel-runtime/core-js/object/define-property":15,"babel-runtime/core-js/set-immediate":19,"babel-runtime/core-js/symbol":21,"babel-runtime/core-js/symbol/has-instance":22,"core-util-is":134,"inherits":149,"process-nextick-args":158,"safe-buffer":181,"util-deprecate":193}],170:[function(require,module,exports){
'use strict';

/*<replacement>*/

function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

var Buffer = require('safe-buffer').Buffer;
/*</replacement>*/

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;
}();

},{"safe-buffer":181}],171:[function(require,module,exports){
'use strict';

/*<replacement>*/

var processNextTick = 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)) {
      processNextTick(emitErrorNT, this, err);
    }
    return;
  }

  // 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) {
      processNextTick(emitErrorNT, _this, err);
      if (_this._writableState) {
        _this._writableState.errorEmitted = true;
      }
    } else if (cb) {
      cb(err);
    }
  });
}

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":158}],172:[function(require,module,exports){
'use strict';

module.exports = require('events').EventEmitter;

},{"events":145}],173:[function(require,module,exports){
arguments[4][32][0].apply(exports,arguments)
},{"dup":32}],174:[function(require,module,exports){
'use strict';

var Buffer = require('safe-buffer').Buffer;

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.
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 -1;
}

// 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) return 0;
  nb = utf8CheckByte(buf[j]);
  if (nb >= 0) {
    if (nb > 0) self.lastNeed = nb - 2;
    return nb;
  }
  if (--j < i) 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
// UTF-8 replacement characters ('\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'.repeat(p);
  }
  if (self.lastNeed > 1 && buf.length > 1) {
    if ((buf[1] & 0xC0) !== 0x80) {
      self.lastNeed = 1;
      return '\uFFFD'.repeat(p + 1);
    }
    if (self.lastNeed > 2 && buf.length > 2) {
      if ((buf[2] & 0xC0) !== 0x80) {
        self.lastNeed = 2;
        return '\uFFFD'.repeat(p + 2);
      }
    }
  }
}

// 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 for each buffered byte of a (partial)
// character needs to be added to the output.
function utf8End(buf) {
  var r = buf && buf.length ? this.write(buf) : '';
  if (this.lastNeed) return r + '\uFFFD'.repeat(this.lastTotal - this.lastNeed);
  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":181}],175:[function(require,module,exports){
module.exports = require('./readable').PassThrough

},{"./readable":176}],176:[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":165,"./lib/_stream_passthrough.js":166,"./lib/_stream_readable.js":167,"./lib/_stream_transform.js":168,"./lib/_stream_writable.js":169}],177:[function(require,module,exports){
module.exports = require('./readable').Transform

},{"./readable":176}],178:[function(require,module,exports){
module.exports = require('./lib/_stream_writable.js');

},{"./lib/_stream_writable.js":169}],179:[function(require,module,exports){
// This method of obtaining a reference to the global object needs to be
// kept identical to the way it is obtained in runtime.js
var g = (function() { return this })() || Function("return this")();

// Use `getOwnPropertyNames` because not all browsers support calling
// `hasOwnProperty` on the global `self` object in a worker. See #183.
var hadRuntime = g.regeneratorRuntime &&
  Object.getOwnPropertyNames(g).indexOf("regeneratorRuntime") >= 0;

// Save the old regeneratorRuntime in case it needs to be restored later.
var oldRuntime = hadRuntime && g.regeneratorRuntime;

// Force reevalutation of runtime.js.
g.regeneratorRuntime = undefined;

module.exports = require("./runtime");

if (hadRuntime) {
  // Restore the original runtime.
  g.regeneratorRuntime = oldRuntime;
} else {
  // Remove the global property added by runtime.js.
  try {
    delete g.regeneratorRuntime;
  } catch(e) {
    g.regeneratorRuntime = undefined;
  }
}

},{"./runtime":180}],180:[function(require,module,exports){
/**
 * Copyright (c) 2014, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * https://raw.github.com/facebook/regenerator/master/LICENSE file. An
 * additional grant of patent rights can be found in the PATENTS file in
 * the same directory.
 */

!(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")()
);

},{}],181:[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":31}],182:[function(require,module,exports){
(function (Buffer){
'use strict';

var _fromCodePoint = require('babel-runtime/core-js/string/from-code-point');

var _fromCodePoint2 = _interopRequireDefault(_fromCodePoint);

var _stringify = require('babel-runtime/core-js/json/stringify');

var _stringify2 = _interopRequireDefault(_stringify);

var _typeof2 = require('babel-runtime/helpers/typeof');

var _typeof3 = _interopRequireDefault(_typeof2);

var _defineProperty = require('babel-runtime/core-js/object/define-property');

var _defineProperty2 = _interopRequireDefault(_defineProperty);

var _keys = require('babel-runtime/core-js/object/keys');

var _keys2 = _interopRequireDefault(_keys);

var _create = require('babel-runtime/core-js/object/create');

var _create2 = _interopRequireDefault(_create);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

;(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 ? (0, _create2.default)(sax.XML_ENTITIES) : (0, _create2.default)(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 = (0, _create2.default)(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 (!_create2.default) {
    Object.create = function (o) {
      function F() {}
      F.prototype = o;
      var newf = new F();
      return newf;
    };
  }

  if (!_keys2.default) {
    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() {
      _end(this);
    },
    write: write,
    resume: function resume() {
      this.error = null;return this;
    },
    close: function close() {
      return this.write(null);
    },
    flush: function flush() {
      flushBuffers(this);
    }
  };

  var Stream;
  try {
    Stream = require('stream').Stream;
  } catch (ex) {
    Stream = function Stream() {};
  }

  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) {
      (0, _defineProperty2.default)(me, 'on' + ev, {
        get: function get() {
          return me._parser['on' + ev];
        },
        set: function set(h) {
          if (!h) {
            me.removeAllListeners(ev);
            me._parser['on' + ev] = h;
            return h;
          }
          me.on(ev, h);
        },
        enumerable: true,
        configurable: false
      });
    });
  }

  SAXStream.prototype = (0, _create2.default)(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
  };

  (0, _keys2.default)(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 === 'undefined' ? 'undefined' : (0, _typeof3.default)(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 = (0, _create2.default)(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: ' + (0, _stringify2.default)(parser.tagName));
        tag.uri = qn.prefix;
      }

      var parent = parser.tags[parser.tags.length - 1] || parser;
      if (tag.ns && parent.ns !== tag.ns) {
        (0, _keys2.default)(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: ' + (0, _stringify2.default)(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
        (0, _keys2.default)(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 (0, _fromCodePoint2.default)(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 === 'undefined' ? 'undefined' : (0, _typeof3.default)(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 (!_fromCodePoint2.default) {
    (function () {
      var stringFromCharCode = String.fromCharCode;
      var floor = Math.floor;
      var fromCodePoint = function fromCodePoint() {
        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 (_defineProperty2.default) {
        Object.defineProperty(String, 'fromCodePoint', {
          value: fromCodePoint,
          configurable: true,
          writable: true
        });
      } else {
        String.fromCodePoint = fromCodePoint;
      }
    })();
  }
})(typeof exports === 'undefined' ? undefined.sax = {} : exports);

}).call(this,require("buffer").Buffer)
},{"babel-runtime/core-js/json/stringify":12,"babel-runtime/core-js/object/create":14,"babel-runtime/core-js/object/define-property":15,"babel-runtime/core-js/object/keys":18,"babel-runtime/core-js/string/from-code-point":20,"babel-runtime/helpers/typeof":26,"buffer":31,"stream":183,"string_decoder":188}],183:[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":145,"inherits":149,"readable-stream/duplex.js":164,"readable-stream/passthrough.js":175,"readable-stream/readable.js":176,"readable-stream/transform.js":177,"readable-stream/writable.js":178}],184:[function(require,module,exports){
(function (global){
var ClientRequest = require('./lib/request')
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.Agent = function () {}
http.Agent.defaultMaxSockets = 4

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":186,"builtin-status-codes":33,"url":191,"xtend":225}],185:[function(require,module,exports){
(function (global){
'use strict';

exports.fetch = isFunction(global.fetch) && isFunction(global.ReadableStream);

exports.blobConstructor = false;
try {
	new Blob([new ArrayBuffer(1)]);
	exports.blobConstructor = true;
} catch (e) {}

// 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;
}

// For some strange reason, Safari 7.0 reports typeof global.ArrayBuffer === 'object'.
// Safari 7.1 appears to have fixed this bug.
var haveArrayBuffer = typeof global.ArrayBuffer !== 'undefined';
var haveSlice = haveArrayBuffer && isFunction(global.ArrayBuffer.prototype.slice);

// If fetch is supported, then arraybuffer will be supported too. Skip calling
// checkTypeSupport(), since that calls getXHR().
exports.arraybuffer = exports.fetch || haveArrayBuffer && 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 && haveSlice && checkTypeSupport('ms-stream');
exports.mozchunkedarraybuffer = !exports.fetch && haveArrayBuffer && 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);

exports.vbArray = isFunction(global.VBArray);

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 : {})
},{}],186:[function(require,module,exports){
(function (process,global,Buffer){
'use strict';

var _keys = require('babel-runtime/core-js/object/keys');

var _keys2 = _interopRequireDefault(_keys);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var capability = require('./capability');
var inherits = require('inherits');
var response = require('./response');
var stream = require('readable-stream');
var toArrayBuffer = require('to-arraybuffer');

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 if (capability.vbArray && preferBinary) {
		return 'text:vbarray';
	} 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 ' + new Buffer(opts.auth).toString('base64'));
	(0, _keys2.default)(opts.headers).forEach(function (name) {
		self.setHeader(name, opts.headers[name]);
	});

	var preferBinary;
	var useFetch = true;
	if (opts.mode === 'disable-fetch' || 'timeout' in opts) {
		// If the use of XHR should be preferred and includes preserving the 'content-type' header.
		// Force XHR to be used since the Fetch API does not yet support timeouts.
		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.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') {
		if (capability.blobConstructor) {
			body = new global.Blob(self._body.map(function (buffer) {
				return toArrayBuffer(buffer);
			}), {
				type: (headersObj['content-type'] || {}).value || ''
			});
		} else {
			// get utf8 string
			body = Buffer.concat(self._body).toString();
		}
	}

	// create flattened list of headers
	var headersList = [];
	(0, _keys2.default)(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') {
		global.fetch(self._opts.url, {
			method: self._opts.method,
			headers: headersList,
			body: body || undefined,
			mode: 'cors',
			credentials: opts.withCredentials ? 'include' : 'same-origin'
		}).then(function (response) {
			self._fetchResponse = response;
			self._connect();
		}, function (reason) {
			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.split(':')[0];

		if ('withCredentials' in xhr) xhr.withCredentials = !!opts.withCredentials;

		if (self._mode === 'text' && 'overrideMimeType' in xhr) xhr.overrideMimeType('text/plain; charset=x-user-defined');

		if ('timeout' in opts) {
			xhr.timeout = opts.timeout;
			xhr.ontimeout = function () {
				self.emit('timeout');
			};
		}

		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._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;
	if (self._response) self._response._destroyed = true;
	if (self._xhr) self._xhr.abort();
	// Currently, there isn't a way to truly abort a fetch.
	// If you like bikeshedding, see https://github.com/whatwg/fetch/issues/27
};

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', 'user-agent', 'via'];

}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("buffer").Buffer)
},{"./capability":185,"./response":187,"_process":159,"babel-runtime/core-js/object/keys":18,"buffer":31,"inherits":149,"readable-stream":176,"to-arraybuffer":190}],187:[function(require,module,exports){
(function (process,global,Buffer){
'use strict';

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) {
	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') {
		var read = function read() {
			reader.read().then(function (result) {
				if (self._destroyed) return;
				if (result.done) {
					self.push(null);
					return;
				}
				self.push(new Buffer(result.value));
				read();
			}).catch(function (err) {
				self.emit('error', err);
			});
		};

		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);
		});

		// TODO: this doesn't respect backpressure. Once WritableStream is available, this can be fixed
		var reader = response.body.getReader();

		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 () {};

IncomingMessage.prototype._onXHRProgress = function () {
	var self = this;

	var xhr = self._xhr;

	var response = null;
	switch (self._mode) {
		case 'text:vbarray':
			// For IE9
			if (xhr.readyState !== rStates.DONE) break;
			try {
				// This fails in IE8
				response = new global.VBArray(xhr.responseBody).toArray();
			} catch (e) {}
			if (response !== null) {
				self.push(new Buffer(response));
				break;
			}
		// Falls through in IE8	
		case 'text':
			try {
				// This will fail when readyState = 3 in IE9. Switch mode and wait for readyState = 4
				response = xhr.responseText;
			} catch (e) {
				self._mode = 'text:vbarray';
				break;
			}
			if (response.length > self._pos) {
				var newData = response.substr(self._pos);
				if (self._charset === 'x-user-defined') {
					var buffer = new Buffer(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(new Buffer(new Uint8Array(response)));
			break;
		case 'moz-chunked-arraybuffer':
			// take whole
			response = xhr.response;
			if (xhr.readyState !== rStates.LOADING || !response) break;
			self.push(new Buffer(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(new Buffer(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":185,"_process":159,"buffer":31,"inherits":149,"readable-stream":176}],188:[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 Buffer = require('buffer').Buffer;

var isBufferEncoding = Buffer.isEncoding
  || function(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 assertEncoding(encoding) {
  if (encoding && !isBufferEncoding(encoding)) {
    throw new Error('Unknown encoding: ' + encoding);
  }
}

// StringDecoder provides an interface for efficiently splitting a series of
// buffers into a series of JS strings without breaking apart multi-byte
// characters. CESU-8 is handled as part of the UTF-8 encoding.
//
// @TODO Handling all encodings inside a single object makes it very difficult
// to reason about this code, so it should be split up in the future.
// @TODO There should be a utf8-strict encoding that rejects invalid UTF-8 code
// points as used by CESU-8.
var StringDecoder = exports.StringDecoder = function(encoding) {
  this.encoding = (encoding || 'utf8').toLowerCase().replace(/[-_]/, '');
  assertEncoding(encoding);
  switch (this.encoding) {
    case 'utf8':
      // CESU-8 represents each of Surrogate Pair by 3-bytes
      this.surrogateSize = 3;
      break;
    case 'ucs2':
    case 'utf16le':
      // UTF-16 represents each of Surrogate Pair by 2-bytes
      this.surrogateSize = 2;
      this.detectIncompleteChar = utf16DetectIncompleteChar;
      break;
    case 'base64':
      // Base-64 stores 3 bytes in 4 chars, and pads the remainder.
      this.surrogateSize = 3;
      this.detectIncompleteChar = base64DetectIncompleteChar;
      break;
    default:
      this.write = passThroughWrite;
      return;
  }

  // Enough space to store all bytes of a single character. UTF-8 needs 4
  // bytes, but CESU-8 may require up to 6 (3 bytes per surrogate).
  this.charBuffer = new Buffer(6);
  // Number of bytes received for the current incomplete multi-byte character.
  this.charReceived = 0;
  // Number of bytes expected for the current incomplete multi-byte character.
  this.charLength = 0;
};


// write decodes the given buffer and returns it as JS string that is
// guaranteed to not contain any partial multi-byte characters. Any partial
// character found at the end of the buffer is buffered up, and will be
// returned when calling write again with the remaining bytes.
//
// Note: Converting a Buffer containing an orphan surrogate to a String
// currently works, but converting a String to a Buffer (via `new Buffer`, or
// Buffer#write) will replace incomplete surrogates with the unicode
// replacement character. See https://codereview.chromium.org/121173009/ .
StringDecoder.prototype.write = function(buffer) {
  var charStr = '';
  // if our last write ended with an incomplete multibyte character
  while (this.charLength) {
    // determine how many remaining bytes this buffer has to offer for this char
    var available = (buffer.length >= this.charLength - this.charReceived) ?
        this.charLength - this.charReceived :
        buffer.length;

    // add the new bytes to the char buffer
    buffer.copy(this.charBuffer, this.charReceived, 0, available);
    this.charReceived += available;

    if (this.charReceived < this.charLength) {
      // still not enough chars in this buffer? wait for more ...
      return '';
    }

    // remove bytes belonging to the current character from the buffer
    buffer = buffer.slice(available, buffer.length);

    // get the character that was split
    charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding);

    // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
    var charCode = charStr.charCodeAt(charStr.length - 1);
    if (charCode >= 0xD800 && charCode <= 0xDBFF) {
      this.charLength += this.surrogateSize;
      charStr = '';
      continue;
    }
    this.charReceived = this.charLength = 0;

    // if there are no more bytes in this buffer, just emit our char
    if (buffer.length === 0) {
      return charStr;
    }
    break;
  }

  // determine and set charLength / charReceived
  this.detectIncompleteChar(buffer);

  var end = buffer.length;
  if (this.charLength) {
    // buffer the incomplete character bytes we got
    buffer.copy(this.charBuffer, 0, buffer.length - this.charReceived, end);
    end -= this.charReceived;
  }

  charStr += buffer.toString(this.encoding, 0, end);

  var end = charStr.length - 1;
  var charCode = charStr.charCodeAt(end);
  // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
  if (charCode >= 0xD800 && charCode <= 0xDBFF) {
    var size = this.surrogateSize;
    this.charLength += size;
    this.charReceived += size;
    this.charBuffer.copy(this.charBuffer, size, 0, size);
    buffer.copy(this.charBuffer, 0, 0, size);
    return charStr.substring(0, end);
  }

  // or just emit the charStr
  return charStr;
};

// detectIncompleteChar determines if there is an incomplete UTF-8 character at
// the end of the given buffer. If so, it sets this.charLength to the byte
// length that character, and sets this.charReceived to the number of bytes
// that are available for this character.
StringDecoder.prototype.detectIncompleteChar = function(buffer) {
  // determine how many bytes we have to check at the end of this buffer
  var i = (buffer.length >= 3) ? 3 : buffer.length;

  // Figure out if one of the last i bytes of our buffer announces an
  // incomplete char.
  for (; i > 0; i--) {
    var c = buffer[buffer.length - i];

    // See http://en.wikipedia.org/wiki/UTF-8#Description

    // 110XXXXX
    if (i == 1 && c >> 5 == 0x06) {
      this.charLength = 2;
      break;
    }

    // 1110XXXX
    if (i <= 2 && c >> 4 == 0x0E) {
      this.charLength = 3;
      break;
    }

    // 11110XXX
    if (i <= 3 && c >> 3 == 0x1E) {
      this.charLength = 4;
      break;
    }
  }
  this.charReceived = i;
};

StringDecoder.prototype.end = function(buffer) {
  var res = '';
  if (buffer && buffer.length)
    res = this.write(buffer);

  if (this.charReceived) {
    var cr = this.charReceived;
    var buf = this.charBuffer;
    var enc = this.encoding;
    res += buf.slice(0, cr).toString(enc);
  }

  return res;
};

function passThroughWrite(buffer) {
  return buffer.toString(this.encoding);
}

function utf16DetectIncompleteChar(buffer) {
  this.charReceived = buffer.length % 2;
  this.charLength = this.charReceived ? 2 : 0;
}

function base64DetectIncompleteChar(buffer) {
  this.charReceived = buffer.length % 3;
  this.charLength = this.charReceived ? 3 : 0;
}

},{"buffer":31}],189:[function(require,module,exports){
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];
};
},{"process/browser.js":159}],190:[function(require,module,exports){
var Buffer = require('buffer').Buffer

module.exports = function (buf) {
	// If the buffer is backed by a Uint8Array, a faster version will work
	if (buf instanceof Uint8Array) {
		// If the buffer isn't a subarray, return the underlying ArrayBuffer
		if (buf.byteOffset === 0 && buf.byteLength === buf.buffer.byteLength) {
			return buf.buffer
		} else if (typeof buf.buffer.slice === 'function') {
			// Otherwise we need to get a proper copy
			return buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength)
		}
	}

	if (Buffer.isBuffer(buf)) {
		// This is the slow version that will work with any Buffer
		// implementation (even in old browsers)
		var arrayCopy = new Uint8Array(buf.length)
		var len = buf.length
		for (var i = 0; i < len; i++) {
			arrayCopy[i] = buf[i]
		}
		return arrayCopy.buffer
	} else {
		throw new Error('Argument must be a Buffer')
	}
}

},{"buffer":31}],191:[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 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 " + typeof 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":192,"punycode":160,"querystring":163}],192:[function(require,module,exports){
'use strict';

module.exports = {
  isString: function(arg) {
    return typeof(arg) === 'string';
  },
  isObject: function(arg) {
    return typeof(arg) === 'object' && arg !== null;
  },
  isNull: function(arg) {
    return arg === null;
  },
  isNullOrUndefined: function(arg) {
    return arg == null;
  }
};

},{}],193:[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 : {})
},{}],194:[function(require,module,exports){
arguments[4][149][0].apply(exports,arguments)
},{"dup":149}],195:[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';
}
},{}],196:[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":195,"_process":159,"inherits":194}],197:[function(require,module,exports){
"use strict";

// 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(undefined);

},{}],198:[function(require,module,exports){
'use strict';

var _typeof2 = require('babel-runtime/helpers/typeof');

var _typeof3 = _interopRequireDefault(_typeof2);

var _keys = require('babel-runtime/core-js/object/keys');

var _keys2 = _interopRequireDefault(_keys);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// 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 requiresCDATA(entry) {
    return typeof entry === "string" && (entry.indexOf('&') >= 0 || entry.indexOf('>') >= 0 || entry.indexOf('<') >= 0);
  };

  wrapCDATA = function wrapCDATA(entry) {
    return "<![CDATA[" + escapeCDATA(entry) + "]]>";
  };

  escapeCDATA = function escapeCDATA(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 ((0, _keys2.default)(rootObj).length === 1 && this.options.rootName === defaults['0.2'].rootName) {
        rootName = (0, _keys2.default)(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 === 'undefined' ? 'undefined' : (0, _typeof3.default)(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 === 'undefined' ? 'undefined' : (0, _typeof3.default)(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 === 'undefined' ? 'undefined' : (0, _typeof3.default)(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(undefined);

},{"./defaults":199,"babel-runtime/core-js/object/keys":18,"babel-runtime/helpers/typeof":26,"xmlbuilder":224}],199:[function(require,module,exports){
"use strict";

// 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(undefined);

},{}],200:[function(require,module,exports){
'use strict';

var _getOwnPropertyNames = require('babel-runtime/core-js/object/get-own-property-names');

var _getOwnPropertyNames2 = _interopRequireDefault(_getOwnPropertyNames);

var _keys = require('babel-runtime/core-js/object/keys');

var _keys2 = _interopRequireDefault(_keys);

var _typeof2 = require('babel-runtime/helpers/typeof');

var _typeof3 = _interopRequireDefault(_typeof2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// Generated by CoffeeScript 1.12.7
(function () {
  "use strict";

  var bom,
      defaults,
      events,
      isEmpty,
      processItem,
      processors,
      sax,
      setImmediate,
      bind = function bind(fn, me) {
    return function () {
      return fn.apply(me, arguments);
    };
  },
      extend = function extend(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 isEmpty(thing) {
    return (typeof thing === 'undefined' ? 'undefined' : (0, _typeof3.default)(thing)) === "object" && thing != null && (0, _keys2.default)(thing).length === 0;
  };

  processItem = function processItem(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.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 ((0, _keys2.default)(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 === 'undefined' ? 'undefined' : (0, _typeof3.default)(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 ((0, _getOwnPropertyNames2.default)(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 ((0, _keys2.default)(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;
        }
      }
    };

    return Parser;
  }(events.EventEmitter);

  exports.parseString = function (str, a, b) {
    var cb, options, parser;
    if (b != null) {
      if (typeof b === 'function') {
        cb = b;
      }
      if ((typeof a === 'undefined' ? 'undefined' : (0, _typeof3.default)(a)) === 'object') {
        options = a;
      }
    } else {
      if (typeof a === 'function') {
        cb = a;
      }
      options = {};
    }
    parser = new exports.Parser(options);
    return parser.parseString(str, cb);
  };
}).call(undefined);

},{"./bom":197,"./defaults":199,"./processors":201,"babel-runtime/core-js/object/get-own-property-names":16,"babel-runtime/core-js/object/keys":18,"babel-runtime/helpers/typeof":26,"events":145,"sax":182,"timers":189}],201:[function(require,module,exports){
'use strict';

// 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(undefined);

},{}],202:[function(require,module,exports){
'use strict';

// Generated by CoffeeScript 1.12.7
(function () {
  "use strict";

  var builder,
      defaults,
      parser,
      processors,
      extend = function extend(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;
}).call(undefined);

},{"./builder":198,"./defaults":199,"./parser":200,"./processors":201}],203:[function(require,module,exports){
'use strict';

var _getPrototypeOf = require('babel-runtime/core-js/object/get-prototype-of');

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _typeof2 = require('babel-runtime/helpers/typeof');

var _typeof3 = _interopRequireDefault(_typeof2);

var _assign = require('babel-runtime/core-js/object/assign');

var _assign2 = _interopRequireDefault(_assign);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// Generated by CoffeeScript 1.12.6
(function () {
  var assign,
      isArray,
      isEmpty,
      isFunction,
      isObject,
      isPlainObject,
      slice = [].slice,
      hasProp = {}.hasOwnProperty;

  assign = function assign() {
    var i, key, len, source, sources, target;
    target = arguments[0], sources = 2 <= arguments.length ? slice.call(arguments, 1) : [];
    if (isFunction(_assign2.default)) {
      _assign2.default.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 isFunction(val) {
    return !!val && Object.prototype.toString.call(val) === '[object Function]';
  };

  isObject = function isObject(val) {
    var ref;
    return !!val && ((ref = typeof val === 'undefined' ? 'undefined' : (0, _typeof3.default)(val)) === 'function' || ref === 'object');
  };

  isArray = function isArray(val) {
    if (isFunction(Array.isArray)) {
      return Array.isArray(val);
    } else {
      return Object.prototype.toString.call(val) === '[object Array]';
    }
  };

  isEmpty = function isEmpty(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 isPlainObject(val) {
    var ctor, proto;
    return isObject(val) && (proto = (0, _getPrototypeOf2.default)(val)) && (ctor = proto.constructor) && typeof ctor === 'function' && ctor instanceof ctor && Function.prototype.toString.call(ctor) === Function.prototype.toString.call(Object);
  };

  module.exports.assign = assign;

  module.exports.isFunction = isFunction;

  module.exports.isObject = isObject;

  module.exports.isArray = isArray;

  module.exports.isEmpty = isEmpty;

  module.exports.isPlainObject = isPlainObject;
}).call(undefined);

},{"babel-runtime/core-js/object/assign":13,"babel-runtime/core-js/object/get-prototype-of":17,"babel-runtime/helpers/typeof":26}],204:[function(require,module,exports){
"use strict";

var _create = require("babel-runtime/core-js/object/create");

var _create2 = _interopRequireDefault(_create);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLAttribute;

  module.exports = XMLAttribute = function () {
    function XMLAttribute(parent, name, value) {
      this.options = parent.options;
      this.stringify = parent.stringify;
      if (name == null) {
        throw new Error("Missing attribute name of element " + parent.name);
      }
      if (value == null) {
        throw new Error("Missing attribute value for attribute " + name + " of element " + parent.name);
      }
      this.name = this.stringify.attName(name);
      this.value = this.stringify.attValue(value);
    }

    XMLAttribute.prototype.clone = function () {
      return (0, _create2.default)(this);
    };

    XMLAttribute.prototype.toString = function (options) {
      return this.options.writer.set(options).attribute(this);
    };

    return XMLAttribute;
  }();
}).call(undefined);

},{"babel-runtime/core-js/object/create":14}],205:[function(require,module,exports){
"use strict";

var _create = require("babel-runtime/core-js/object/create");

var _create2 = _interopRequireDefault(_create);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLCData,
      XMLNode,
      extend = function extend(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 = 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.text = this.stringify.cdata(text);
    }

    XMLCData.prototype.clone = function () {
      return (0, _create2.default)(this);
    };

    XMLCData.prototype.toString = function (options) {
      return this.options.writer.set(options).cdata(this);
    };

    return XMLCData;
  }(XMLNode);
}).call(undefined);

},{"./XMLNode":216,"babel-runtime/core-js/object/create":14}],206:[function(require,module,exports){
"use strict";

var _create = require("babel-runtime/core-js/object/create");

var _create2 = _interopRequireDefault(_create);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLComment,
      XMLNode,
      extend = function extend(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 = 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.text = this.stringify.comment(text);
    }

    XMLComment.prototype.clone = function () {
      return (0, _create2.default)(this);
    };

    XMLComment.prototype.toString = function (options) {
      return this.options.writer.set(options).comment(this);
    };

    return XMLComment;
  }(XMLNode);
}).call(undefined);

},{"./XMLNode":216,"babel-runtime/core-js/object/create":14}],207:[function(require,module,exports){
"use strict";

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLDTDAttList,
      XMLNode,
      extend = function extend(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 = 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");
      }
      if (attributeName == null) {
        throw new Error("Missing DTD attribute name");
      }
      if (!attributeType) {
        throw new Error("Missing DTD attribute type");
      }
      if (!defaultValueType) {
        throw new Error("Missing DTD attribute default");
      }
      if (defaultValueType.indexOf('#') !== 0) {
        defaultValueType = '#' + defaultValueType;
      }
      if (!defaultValueType.match(/^(#REQUIRED|#IMPLIED|#FIXED|#DEFAULT)$/)) {
        throw new Error("Invalid default value type; expected: #REQUIRED, #IMPLIED, #FIXED or #DEFAULT");
      }
      if (defaultValue && !defaultValueType.match(/^(#FIXED|#DEFAULT)$/)) {
        throw new Error("Default value only applies to #FIXED or #DEFAULT");
      }
      this.elementName = this.stringify.eleName(elementName);
      this.attributeName = this.stringify.attName(attributeName);
      this.attributeType = this.stringify.dtdAttType(attributeType);
      this.defaultValue = this.stringify.dtdAttDefault(defaultValue);
      this.defaultValueType = defaultValueType;
    }

    XMLDTDAttList.prototype.toString = function (options) {
      return this.options.writer.set(options).dtdAttList(this);
    };

    return XMLDTDAttList;
  }(XMLNode);
}).call(undefined);

},{"./XMLNode":216}],208:[function(require,module,exports){
'use strict';

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLDTDElement,
      XMLNode,
      extend = function extend(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 = 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");
      }
      if (!value) {
        value = '(#PCDATA)';
      }
      if (Array.isArray(value)) {
        value = '(' + value.join(',') + ')';
      }
      this.name = this.stringify.eleName(name);
      this.value = this.stringify.dtdElementValue(value);
    }

    XMLDTDElement.prototype.toString = function (options) {
      return this.options.writer.set(options).dtdElement(this);
    };

    return XMLDTDElement;
  }(XMLNode);
}).call(undefined);

},{"./XMLNode":216}],209:[function(require,module,exports){
'use strict';

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLDTDEntity,
      XMLNode,
      isObject,
      extend = function extend(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');

  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 entity name");
      }
      if (value == null) {
        throw new Error("Missing entity value");
      }
      this.pe = !!pe;
      this.name = this.stringify.eleName(name);
      if (!isObject(value)) {
        this.value = this.stringify.dtdEntityValue(value);
      } else {
        if (!value.pubID && !value.sysID) {
          throw new Error("Public and/or system identifiers are required for an external entity");
        }
        if (value.pubID && !value.sysID) {
          throw new Error("System identifier is required for a public external entity");
        }
        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");
        }
      }
    }

    XMLDTDEntity.prototype.toString = function (options) {
      return this.options.writer.set(options).dtdEntity(this);
    };

    return XMLDTDEntity;
  }(XMLNode);
}).call(undefined);

},{"./Utility":203,"./XMLNode":216}],210:[function(require,module,exports){
"use strict";

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLDTDNotation,
      XMLNode,
      extend = function extend(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 = XMLDTDNotation = function (superClass) {
    extend(XMLDTDNotation, superClass);

    function XMLDTDNotation(parent, name, value) {
      XMLDTDNotation.__super__.constructor.call(this, parent);
      if (name == null) {
        throw new Error("Missing notation name");
      }
      if (!value.pubID && !value.sysID) {
        throw new Error("Public or system identifiers are required for an external entity");
      }
      this.name = this.stringify.eleName(name);
      if (value.pubID != null) {
        this.pubID = this.stringify.dtdPubID(value.pubID);
      }
      if (value.sysID != null) {
        this.sysID = this.stringify.dtdSysID(value.sysID);
      }
    }

    XMLDTDNotation.prototype.toString = function (options) {
      return this.options.writer.set(options).dtdNotation(this);
    };

    return XMLDTDNotation;
  }(XMLNode);
}).call(undefined);

},{"./XMLNode":216}],211:[function(require,module,exports){
'use strict';

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLDeclaration,
      XMLNode,
      isObject,
      extend = function extend(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');

  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.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.set(options).declaration(this);
    };

    return XMLDeclaration;
  }(XMLNode);
}).call(undefined);

},{"./Utility":203,"./XMLNode":216}],212:[function(require,module,exports){
'use strict';

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLDTDAttList,
      XMLDTDElement,
      XMLDTDEntity,
      XMLDTDNotation,
      XMLDocType,
      XMLNode,
      isObject,
      extend = function extend(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');

  XMLDTDAttList = require('./XMLDTDAttList');

  XMLDTDEntity = require('./XMLDTDEntity');

  XMLDTDElement = require('./XMLDTDElement');

  XMLDTDNotation = require('./XMLDTDNotation');

  module.exports = XMLDocType = function (superClass) {
    extend(XMLDocType, superClass);

    function XMLDocType(parent, pubID, sysID) {
      var ref, ref1;
      XMLDocType.__super__.constructor.call(this, parent);
      this.documentObject = parent;
      if (isObject(pubID)) {
        ref = pubID, pubID = ref.pubID, sysID = ref.sysID;
      }
      if (sysID == null) {
        ref1 = [pubID, sysID], sysID = ref1[0], pubID = ref1[1];
      }
      if (pubID != null) {
        this.pubID = this.stringify.dtdPubID(pubID);
      }
      if (sysID != null) {
        this.sysID = this.stringify.dtdSysID(sysID);
      }
    }

    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.set(options).docType(this);
    };

    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;
    };

    return XMLDocType;
  }(XMLNode);
}).call(undefined);

},{"./Utility":203,"./XMLDTDAttList":207,"./XMLDTDElement":208,"./XMLDTDEntity":209,"./XMLDTDNotation":210,"./XMLNode":216}],213:[function(require,module,exports){
'use strict';

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLDocument,
      XMLNode,
      XMLStringWriter,
      XMLStringifier,
      isPlainObject,
      extend = function extend(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;

  XMLNode = require('./XMLNode');

  XMLStringifier = require('./XMLStringifier');

  XMLStringWriter = require('./XMLStringWriter');

  module.exports = XMLDocument = function (superClass) {
    extend(XMLDocument, superClass);

    function XMLDocument(options) {
      XMLDocument.__super__.constructor.call(this, null);
      options || (options = {});
      if (!options.writer) {
        options.writer = new XMLStringWriter();
      }
      this.options = options;
      this.stringify = new XMLStringifier(options);
      this.isDocument = true;
    }

    XMLDocument.prototype.end = function (writer) {
      var writerOptions;
      if (!writer) {
        writer = this.options.writer;
      } else if (isPlainObject(writer)) {
        writerOptions = writer;
        writer = this.options.writer.set(writerOptions);
      }
      return writer.document(this);
    };

    XMLDocument.prototype.toString = function (options) {
      return this.options.writer.set(options).document(this);
    };

    return XMLDocument;
  }(XMLNode);
}).call(undefined);

},{"./Utility":203,"./XMLNode":216,"./XMLStringWriter":220,"./XMLStringifier":221}],214:[function(require,module,exports){
'use strict';

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLAttribute,
      XMLCData,
      XMLComment,
      XMLDTDAttList,
      XMLDTDElement,
      XMLDTDEntity,
      XMLDTDNotation,
      XMLDeclaration,
      XMLDocType,
      XMLDocumentCB,
      XMLElement,
      XMLProcessingInstruction,
      XMLRaw,
      XMLStringWriter,
      XMLStringifier,
      XMLText,
      isFunction,
      isObject,
      isPlainObject,
      ref,
      hasProp = {}.hasOwnProperty;

  ref = require('./Utility'), isObject = ref.isObject, isFunction = ref.isFunction, isPlainObject = ref.isPlainObject;

  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');

  module.exports = XMLDocumentCB = function () {
    function XMLDocumentCB(options, onData, onEnd) {
      var writerOptions;
      options || (options = {});
      if (!options.writer) {
        options.writer = new XMLStringWriter(options);
      } else if (isPlainObject(options.writer)) {
        writerOptions = options.writer;
        options.writer = new XMLStringWriter(writerOptions);
      }
      this.options = options;
      this.writer = options.writer;
      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.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.openCurrent();
      name = name.valueOf();
      if (attributes == null) {
        attributes = {};
      }
      attributes = attributes.valueOf();
      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) {
      if (this.currentNode && this.currentNode instanceof XMLDocType) {
        return this.dtdElement.apply(this, arguments);
      } else {
        return this.node(name, attributes, text);
      }
    };

    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");
      }
      if (name != null) {
        name = name.valueOf();
      }
      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.skipNullAttributes || value != null) {
          this.currentNode.attributes[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.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.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.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.currentLevel + 1));
      return this;
    };

    XMLDocumentCB.prototype.instruction = function (target, value) {
      var i, insTarget, insValue, len, node;
      this.openCurrent();
      if (target != null) {
        target = target.valueOf();
      }
      if (value != null) {
        value = value.valueOf();
      }
      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.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.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.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.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.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.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.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) {
      if (!node.isOpen) {
        if (!this.root && this.currentLevel === 0 && node instanceof XMLElement) {
          this.root = node;
        }
        this.onData(this.writer.openNode(node, this.currentLevel));
        return node.isOpen = true;
      }
    };

    XMLDocumentCB.prototype.closeNode = function (node) {
      if (!node.isClosed) {
        this.onData(this.writer.closeNode(node, this.currentLevel));
        return node.isClosed = true;
      }
    };

    XMLDocumentCB.prototype.onData = function (chunk) {
      this.documentStarted = true;
      return this.onDataCallback(chunk);
    };

    XMLDocumentCB.prototype.onEnd = function () {
      this.documentCompleted = true;
      return this.onEndCallback();
    };

    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 instanceof XMLDocType) {
        return this.attList.apply(this, arguments);
      } else {
        return this.attribute.apply(this, arguments);
      }
    };

    XMLDocumentCB.prototype.a = function () {
      if (this.currentNode && this.currentNode instanceof XMLDocType) {
        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(undefined);

},{"./Utility":203,"./XMLAttribute":204,"./XMLCData":205,"./XMLComment":206,"./XMLDTDAttList":207,"./XMLDTDElement":208,"./XMLDTDEntity":209,"./XMLDTDNotation":210,"./XMLDeclaration":211,"./XMLDocType":212,"./XMLElement":215,"./XMLProcessingInstruction":217,"./XMLRaw":218,"./XMLStringWriter":220,"./XMLStringifier":221,"./XMLText":222}],215:[function(require,module,exports){
'use strict';

var _create = require('babel-runtime/core-js/object/create');

var _create2 = _interopRequireDefault(_create);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLAttribute,
      XMLElement,
      XMLNode,
      isFunction,
      isObject,
      ref,
      extend = function extend(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;

  XMLNode = require('./XMLNode');

  XMLAttribute = require('./XMLAttribute');

  module.exports = XMLElement = function (superClass) {
    extend(XMLElement, superClass);

    function XMLElement(parent, name, attributes) {
      XMLElement.__super__.constructor.call(this, parent);
      if (name == null) {
        throw new Error("Missing element name");
      }
      this.name = this.stringify.eleName(name);
      this.attributes = {};
      if (attributes != null) {
        this.attribute(attributes);
      }
      if (parent.isDocument) {
        this.isRoot = true;
        this.documentObject = parent;
        parent.rootObject = this;
      }
    }

    XMLElement.prototype.clone = function () {
      var att, attName, clonedSelf, ref1;
      clonedSelf = (0, _create2.default)(this);
      if (clonedSelf.isRoot) {
        clonedSelf.documentObject = null;
      }
      clonedSelf.attributes = {};
      ref1 = this.attributes;
      for (attName in ref1) {
        if (!hasProp.call(ref1, attName)) continue;
        att = ref1[attName];
        clonedSelf.attributes[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 = name.valueOf();
      }
      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.skipNullAttributes || value != null) {
          this.attributes[name] = new XMLAttribute(this, name, value);
        }
      }
      return this;
    };

    XMLElement.prototype.removeAttribute = function (name) {
      var attName, i, len;
      if (name == null) {
        throw new Error("Missing attribute name");
      }
      name = name.valueOf();
      if (Array.isArray(name)) {
        for (i = 0, len = name.length; i < len; i++) {
          attName = name[i];
          delete this.attributes[attName];
        }
      } else {
        delete this.attributes[name];
      }
      return this;
    };

    XMLElement.prototype.toString = function (options) {
      return this.options.writer.set(options).element(this);
    };

    XMLElement.prototype.att = function (name, value) {
      return this.attribute(name, value);
    };

    XMLElement.prototype.a = function (name, value) {
      return this.attribute(name, value);
    };

    return XMLElement;
  }(XMLNode);
}).call(undefined);

},{"./Utility":203,"./XMLAttribute":204,"./XMLNode":216,"babel-runtime/core-js/object/create":14}],216:[function(require,module,exports){
'use strict';

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLCData,
      XMLComment,
      XMLDeclaration,
      XMLDocType,
      XMLElement,
      XMLNode,
      XMLProcessingInstruction,
      XMLRaw,
      XMLText,
      isEmpty,
      isFunction,
      isObject,
      ref,
      hasProp = {}.hasOwnProperty;

  ref = require('./Utility'), isObject = ref.isObject, isFunction = ref.isFunction, isEmpty = ref.isEmpty;

  XMLElement = null;

  XMLCData = null;

  XMLComment = null;

  XMLDeclaration = null;

  XMLDocType = null;

  XMLRaw = null;

  XMLText = null;

  XMLProcessingInstruction = null;

  module.exports = XMLNode = function () {
    function XMLNode(parent) {
      this.parent = parent;
      if (this.parent) {
        this.options = this.parent.options;
        this.stringify = this.parent.stringify;
      }
      this.children = [];
      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');
      }
    }

    XMLNode.prototype.element = function (name, attributes, text) {
      var childNode, item, j, k, key, lastChild, len, len1, ref1, val;
      lastChild = null;
      if (attributes == null) {
        attributes = {};
      }
      attributes = attributes.valueOf();
      if (!isObject(attributes)) {
        ref1 = [attributes, text], text = ref1[0], attributes = ref1[1];
      }
      if (name != null) {
        name = name.valueOf();
      }
      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 (isObject(val) && isEmpty(val)) {
            val = null;
          }
          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)) {
            for (k = 0, len1 = val.length; k < len1; k++) {
              item = val[k];
              childNode = {};
              childNode[key] = item;
              lastChild = this.element(childNode);
            }
          } else if (isObject(val)) {
            lastChild = this.element(key);
            lastChild.element(val);
          } else {
            lastChild = this.element(key, val);
          }
        }
      } 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);
      }
      return lastChild;
    };

    XMLNode.prototype.insertBefore = function (name, attributes, text) {
      var child, i, removed;
      if (this.isRoot) {
        throw new Error("Cannot insert elements at root level");
      }
      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");
      }
      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, ref1;
      if (this.isRoot) {
        throw new Error("Cannot remove the root element");
      }
      i = this.parent.children.indexOf(this);
      [].splice.apply(this.parent.children, [i, i - i + 1].concat(ref1 = [])), ref1;
      return this.parent;
    };

    XMLNode.prototype.node = function (name, attributes, text) {
      var child, ref1;
      if (name != null) {
        name = name.valueOf();
      }
      attributes || (attributes = {});
      attributes = attributes.valueOf();
      if (!isObject(attributes)) {
        ref1 = [attributes, text], text = ref1[0], attributes = ref1[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;
      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.instruction = function (target, value) {
      var insTarget, insValue, instruction, j, len;
      if (target != null) {
        target = target.valueOf();
      }
      if (value != null) {
        value = value.valueOf();
      }
      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[0] instanceof XMLDeclaration) {
        doc.children[0] = xmldec;
      } else {
        doc.children.unshift(xmldec);
      }
      return doc.root() || doc;
    };

    XMLNode.prototype.doctype = function (pubID, sysID) {
      var child, doc, doctype, i, j, k, len, len1, ref1, ref2;
      doc = this.document();
      doctype = new XMLDocType(doc, pubID, sysID);
      ref1 = doc.children;
      for (i = j = 0, len = ref1.length; j < len; i = ++j) {
        child = ref1[i];
        if (child instanceof XMLDocType) {
          doc.children[i] = doctype;
          return doctype;
        }
      }
      ref2 = doc.children;
      for (i = k = 0, len1 = ref2.length; k < len1; i = ++k) {
        child = ref2[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.isDocument) {
          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.isDocument) {
          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");
      }
      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");
      }
      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.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.dtd = function (pubID, sysID) {
      return this.doctype(pubID, sysID);
    };

    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);
    };

    return XMLNode;
  }();
}).call(undefined);

},{"./Utility":203,"./XMLCData":205,"./XMLComment":206,"./XMLDeclaration":211,"./XMLDocType":212,"./XMLElement":215,"./XMLProcessingInstruction":217,"./XMLRaw":218,"./XMLText":222}],217:[function(require,module,exports){
"use strict";

var _create = require("babel-runtime/core-js/object/create");

var _create2 = _interopRequireDefault(_create);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLNode,
      XMLProcessingInstruction,
      extend = function extend(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 = 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.target = this.stringify.insTarget(target);
      if (value) {
        this.value = this.stringify.insValue(value);
      }
    }

    XMLProcessingInstruction.prototype.clone = function () {
      return (0, _create2.default)(this);
    };

    XMLProcessingInstruction.prototype.toString = function (options) {
      return this.options.writer.set(options).processingInstruction(this);
    };

    return XMLProcessingInstruction;
  }(XMLNode);
}).call(undefined);

},{"./XMLNode":216,"babel-runtime/core-js/object/create":14}],218:[function(require,module,exports){
"use strict";

var _create = require("babel-runtime/core-js/object/create");

var _create2 = _interopRequireDefault(_create);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLNode,
      XMLRaw,
      extend = function extend(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 = 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.value = this.stringify.raw(text);
    }

    XMLRaw.prototype.clone = function () {
      return (0, _create2.default)(this);
    };

    XMLRaw.prototype.toString = function (options) {
      return this.options.writer.set(options).raw(this);
    };

    return XMLRaw;
  }(XMLNode);
}).call(undefined);

},{"./XMLNode":216,"babel-runtime/core-js/object/create":14}],219:[function(require,module,exports){
'use strict';

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLCData,
      XMLComment,
      XMLDTDAttList,
      XMLDTDElement,
      XMLDTDEntity,
      XMLDTDNotation,
      XMLDeclaration,
      XMLDocType,
      XMLElement,
      XMLProcessingInstruction,
      XMLRaw,
      XMLStreamWriter,
      XMLText,
      XMLWriterBase,
      extend = function extend(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;

  XMLDeclaration = require('./XMLDeclaration');

  XMLDocType = require('./XMLDocType');

  XMLCData = require('./XMLCData');

  XMLComment = require('./XMLComment');

  XMLElement = require('./XMLElement');

  XMLRaw = require('./XMLRaw');

  XMLText = require('./XMLText');

  XMLProcessingInstruction = require('./XMLProcessingInstruction');

  XMLDTDAttList = require('./XMLDTDAttList');

  XMLDTDElement = require('./XMLDTDElement');

  XMLDTDEntity = require('./XMLDTDEntity');

  XMLDTDNotation = require('./XMLDTDNotation');

  XMLWriterBase = require('./XMLWriterBase');

  module.exports = XMLStreamWriter = function (superClass) {
    extend(XMLStreamWriter, superClass);

    function XMLStreamWriter(stream, options) {
      this.stream = stream;
      XMLStreamWriter.__super__.constructor.call(this, options);
    }

    XMLStreamWriter.prototype.document = function (doc) {
      var child, i, j, len, len1, ref, ref1, results;
      ref = doc.children;
      for (i = 0, len = ref.length; i < len; i++) {
        child = ref[i];
        child.isLastRootNode = false;
      }
      doc.children[doc.children.length - 1].isLastRootNode = true;
      ref1 = doc.children;
      results = [];
      for (j = 0, len1 = ref1.length; j < len1; j++) {
        child = ref1[j];
        switch (false) {
          case !(child instanceof XMLDeclaration):
            results.push(this.declaration(child));
            break;
          case !(child instanceof XMLDocType):
            results.push(this.docType(child));
            break;
          case !(child instanceof XMLComment):
            results.push(this.comment(child));
            break;
          case !(child instanceof XMLProcessingInstruction):
            results.push(this.processingInstruction(child));
            break;
          default:
            results.push(this.element(child));
        }
      }
      return results;
    };

    XMLStreamWriter.prototype.attribute = function (att) {
      return this.stream.write(' ' + att.name + '="' + att.value + '"');
    };

    XMLStreamWriter.prototype.cdata = function (node, level) {
      return this.stream.write(this.space(level) + '<![CDATA[' + node.text + ']]>' + this.endline(node));
    };

    XMLStreamWriter.prototype.comment = function (node, level) {
      return this.stream.write(this.space(level) + '<!-- ' + node.text + ' -->' + this.endline(node));
    };

    XMLStreamWriter.prototype.declaration = function (node, level) {
      this.stream.write(this.space(level));
      this.stream.write('<?xml version="' + node.version + '"');
      if (node.encoding != null) {
        this.stream.write(' encoding="' + node.encoding + '"');
      }
      if (node.standalone != null) {
        this.stream.write(' standalone="' + node.standalone + '"');
      }
      this.stream.write(this.spacebeforeslash + '?>');
      return this.stream.write(this.endline(node));
    };

    XMLStreamWriter.prototype.docType = function (node, level) {
      var child, i, len, ref;
      level || (level = 0);
      this.stream.write(this.space(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));
        ref = node.children;
        for (i = 0, len = ref.length; i < len; i++) {
          child = ref[i];
          switch (false) {
            case !(child instanceof XMLDTDAttList):
              this.dtdAttList(child, level + 1);
              break;
            case !(child instanceof XMLDTDElement):
              this.dtdElement(child, level + 1);
              break;
            case !(child instanceof XMLDTDEntity):
              this.dtdEntity(child, level + 1);
              break;
            case !(child instanceof XMLDTDNotation):
              this.dtdNotation(child, level + 1);
              break;
            case !(child instanceof XMLCData):
              this.cdata(child, level + 1);
              break;
            case !(child instanceof XMLComment):
              this.comment(child, level + 1);
              break;
            case !(child instanceof XMLProcessingInstruction):
              this.processingInstruction(child, level + 1);
              break;
            default:
              throw new Error("Unknown DTD node type: " + child.constructor.name);
          }
        }
        this.stream.write(']');
      }
      this.stream.write(this.spacebeforeslash + '>');
      return this.stream.write(this.endline(node));
    };

    XMLStreamWriter.prototype.element = function (node, level) {
      var att, child, i, len, name, ref, ref1, space;
      level || (level = 0);
      space = this.space(level);
      this.stream.write(space + '<' + node.name);
      ref = node.attributes;
      for (name in ref) {
        if (!hasProp.call(ref, name)) continue;
        att = ref[name];
        this.attribute(att);
      }
      if (node.children.length === 0 || node.children.every(function (e) {
        return e.value === '';
      })) {
        if (this.allowEmpty) {
          this.stream.write('></' + node.name + '>');
        } else {
          this.stream.write(this.spacebeforeslash + '/>');
        }
      } else if (this.pretty && node.children.length === 1 && node.children[0].value != null) {
        this.stream.write('>');
        this.stream.write(node.children[0].value);
        this.stream.write('</' + node.name + '>');
      } else {
        this.stream.write('>' + this.newline);
        ref1 = node.children;
        for (i = 0, len = ref1.length; i < len; i++) {
          child = ref1[i];
          switch (false) {
            case !(child instanceof XMLCData):
              this.cdata(child, level + 1);
              break;
            case !(child instanceof XMLComment):
              this.comment(child, level + 1);
              break;
            case !(child instanceof XMLElement):
              this.element(child, level + 1);
              break;
            case !(child instanceof XMLRaw):
              this.raw(child, level + 1);
              break;
            case !(child instanceof XMLText):
              this.text(child, level + 1);
              break;
            case !(child instanceof XMLProcessingInstruction):
              this.processingInstruction(child, level + 1);
              break;
            default:
              throw new Error("Unknown XML node type: " + child.constructor.name);
          }
        }
        this.stream.write(space + '</' + node.name + '>');
      }
      return this.stream.write(this.endline(node));
    };

    XMLStreamWriter.prototype.processingInstruction = function (node, level) {
      this.stream.write(this.space(level) + '<?' + node.target);
      if (node.value) {
        this.stream.write(' ' + node.value);
      }
      return this.stream.write(this.spacebeforeslash + '?>' + this.endline(node));
    };

    XMLStreamWriter.prototype.raw = function (node, level) {
      return this.stream.write(this.space(level) + node.value + this.endline(node));
    };

    XMLStreamWriter.prototype.text = function (node, level) {
      return this.stream.write(this.space(level) + node.value + this.endline(node));
    };

    XMLStreamWriter.prototype.dtdAttList = function (node, level) {
      this.stream.write(this.space(level) + '<!ATTLIST ' + node.elementName + ' ' + node.attributeName + ' ' + node.attributeType);
      if (node.defaultValueType !== '#DEFAULT') {
        this.stream.write(' ' + node.defaultValueType);
      }
      if (node.defaultValue) {
        this.stream.write(' "' + node.defaultValue + '"');
      }
      return this.stream.write(this.spacebeforeslash + '>' + this.endline(node));
    };

    XMLStreamWriter.prototype.dtdElement = function (node, level) {
      this.stream.write(this.space(level) + '<!ELEMENT ' + node.name + ' ' + node.value);
      return this.stream.write(this.spacebeforeslash + '>' + this.endline(node));
    };

    XMLStreamWriter.prototype.dtdEntity = function (node, level) {
      this.stream.write(this.space(level) + '<!ENTITY');
      if (node.pe) {
        this.stream.write(' %');
      }
      this.stream.write(' ' + node.name);
      if (node.value) {
        this.stream.write(' "' + node.value + '"');
      } else {
        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.nData) {
          this.stream.write(' NDATA ' + node.nData);
        }
      }
      return this.stream.write(this.spacebeforeslash + '>' + this.endline(node));
    };

    XMLStreamWriter.prototype.dtdNotation = function (node, level) {
      this.stream.write(this.space(level) + '<!NOTATION ' + node.name);
      if (node.pubID && node.sysID) {
        this.stream.write(' PUBLIC "' + node.pubID + '" "' + node.sysID + '"');
      } else if (node.pubID) {
        this.stream.write(' PUBLIC "' + node.pubID + '"');
      } else if (node.sysID) {
        this.stream.write(' SYSTEM "' + node.sysID + '"');
      }
      return this.stream.write(this.spacebeforeslash + '>' + this.endline(node));
    };

    XMLStreamWriter.prototype.endline = function (node) {
      if (!node.isLastRootNode) {
        return this.newline;
      } else {
        return '';
      }
    };

    return XMLStreamWriter;
  }(XMLWriterBase);
}).call(undefined);

},{"./XMLCData":205,"./XMLComment":206,"./XMLDTDAttList":207,"./XMLDTDElement":208,"./XMLDTDEntity":209,"./XMLDTDNotation":210,"./XMLDeclaration":211,"./XMLDocType":212,"./XMLElement":215,"./XMLProcessingInstruction":217,"./XMLRaw":218,"./XMLText":222,"./XMLWriterBase":223}],220:[function(require,module,exports){
'use strict';

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLCData,
      XMLComment,
      XMLDTDAttList,
      XMLDTDElement,
      XMLDTDEntity,
      XMLDTDNotation,
      XMLDeclaration,
      XMLDocType,
      XMLElement,
      XMLProcessingInstruction,
      XMLRaw,
      XMLStringWriter,
      XMLText,
      XMLWriterBase,
      extend = function extend(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;

  XMLDeclaration = require('./XMLDeclaration');

  XMLDocType = require('./XMLDocType');

  XMLCData = require('./XMLCData');

  XMLComment = require('./XMLComment');

  XMLElement = require('./XMLElement');

  XMLRaw = require('./XMLRaw');

  XMLText = require('./XMLText');

  XMLProcessingInstruction = require('./XMLProcessingInstruction');

  XMLDTDAttList = require('./XMLDTDAttList');

  XMLDTDElement = require('./XMLDTDElement');

  XMLDTDEntity = require('./XMLDTDEntity');

  XMLDTDNotation = require('./XMLDTDNotation');

  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) {
      var child, i, len, r, ref;
      this.textispresent = false;
      r = '';
      ref = doc.children;
      for (i = 0, len = ref.length; i < len; i++) {
        child = ref[i];
        r += function () {
          switch (false) {
            case !(child instanceof XMLDeclaration):
              return this.declaration(child);
            case !(child instanceof XMLDocType):
              return this.docType(child);
            case !(child instanceof XMLComment):
              return this.comment(child);
            case !(child instanceof XMLProcessingInstruction):
              return this.processingInstruction(child);
            default:
              return this.element(child, 0);
          }
        }.call(this);
      }
      if (this.pretty && r.slice(-this.newline.length) === this.newline) {
        r = r.slice(0, -this.newline.length);
      }
      return r;
    };

    XMLStringWriter.prototype.attribute = function (att) {
      return ' ' + att.name + '="' + att.value + '"';
    };

    XMLStringWriter.prototype.cdata = function (node, level) {
      return this.space(level) + '<![CDATA[' + node.text + ']]>' + this.newline;
    };

    XMLStringWriter.prototype.comment = function (node, level) {
      return this.space(level) + '<!-- ' + node.text + ' -->' + this.newline;
    };

    XMLStringWriter.prototype.declaration = function (node, level) {
      var r;
      r = this.space(level);
      r += '<?xml version="' + node.version + '"';
      if (node.encoding != null) {
        r += ' encoding="' + node.encoding + '"';
      }
      if (node.standalone != null) {
        r += ' standalone="' + node.standalone + '"';
      }
      r += this.spacebeforeslash + '?>';
      r += this.newline;
      return r;
    };

    XMLStringWriter.prototype.docType = function (node, level) {
      var child, i, len, r, ref;
      level || (level = 0);
      r = this.space(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.newline;
        ref = node.children;
        for (i = 0, len = ref.length; i < len; i++) {
          child = ref[i];
          r += function () {
            switch (false) {
              case !(child instanceof XMLDTDAttList):
                return this.dtdAttList(child, level + 1);
              case !(child instanceof XMLDTDElement):
                return this.dtdElement(child, level + 1);
              case !(child instanceof XMLDTDEntity):
                return this.dtdEntity(child, level + 1);
              case !(child instanceof XMLDTDNotation):
                return this.dtdNotation(child, level + 1);
              case !(child instanceof XMLCData):
                return this.cdata(child, level + 1);
              case !(child instanceof XMLComment):
                return this.comment(child, level + 1);
              case !(child instanceof XMLProcessingInstruction):
                return this.processingInstruction(child, level + 1);
              default:
                throw new Error("Unknown DTD node type: " + child.constructor.name);
            }
          }.call(this);
        }
        r += ']';
      }
      r += this.spacebeforeslash + '>';
      r += this.newline;
      return r;
    };

    XMLStringWriter.prototype.element = function (node, level) {
      var att, child, i, j, len, len1, name, r, ref, ref1, ref2, space, textispresentwasset;
      level || (level = 0);
      textispresentwasset = false;
      if (this.textispresent) {
        this.newline = '';
        this.pretty = false;
      } else {
        this.newline = this.newlinedefault;
        this.pretty = this.prettydefault;
      }
      space = this.space(level);
      r = '';
      r += space + '<' + node.name;
      ref = node.attributes;
      for (name in ref) {
        if (!hasProp.call(ref, name)) continue;
        att = ref[name];
        r += this.attribute(att);
      }
      if (node.children.length === 0 || node.children.every(function (e) {
        return e.value === '';
      })) {
        if (this.allowEmpty) {
          r += '></' + node.name + '>' + this.newline;
        } else {
          r += this.spacebeforeslash + '/>' + this.newline;
        }
      } else if (this.pretty && node.children.length === 1 && node.children[0].value != null) {
        r += '>';
        r += node.children[0].value;
        r += '</' + node.name + '>' + this.newline;
      } else {
        if (this.dontprettytextnodes) {
          ref1 = node.children;
          for (i = 0, len = ref1.length; i < len; i++) {
            child = ref1[i];
            if (child.value != null) {
              this.textispresent++;
              textispresentwasset = true;
              break;
            }
          }
        }
        if (this.textispresent) {
          this.newline = '';
          this.pretty = false;
          space = this.space(level);
        }
        r += '>' + this.newline;
        ref2 = node.children;
        for (j = 0, len1 = ref2.length; j < len1; j++) {
          child = ref2[j];
          r += function () {
            switch (false) {
              case !(child instanceof XMLCData):
                return this.cdata(child, level + 1);
              case !(child instanceof XMLComment):
                return this.comment(child, level + 1);
              case !(child instanceof XMLElement):
                return this.element(child, level + 1);
              case !(child instanceof XMLRaw):
                return this.raw(child, level + 1);
              case !(child instanceof XMLText):
                return this.text(child, level + 1);
              case !(child instanceof XMLProcessingInstruction):
                return this.processingInstruction(child, level + 1);
              default:
                throw new Error("Unknown XML node type: " + child.constructor.name);
            }
          }.call(this);
        }
        if (textispresentwasset) {
          this.textispresent--;
        }
        if (!this.textispresent) {
          this.newline = this.newlinedefault;
          this.pretty = this.prettydefault;
        }
        r += space + '</' + node.name + '>' + this.newline;
      }
      return r;
    };

    XMLStringWriter.prototype.processingInstruction = function (node, level) {
      var r;
      r = this.space(level) + '<?' + node.target;
      if (node.value) {
        r += ' ' + node.value;
      }
      r += this.spacebeforeslash + '?>' + this.newline;
      return r;
    };

    XMLStringWriter.prototype.raw = function (node, level) {
      return this.space(level) + node.value + this.newline;
    };

    XMLStringWriter.prototype.text = function (node, level) {
      return this.space(level) + node.value + this.newline;
    };

    XMLStringWriter.prototype.dtdAttList = function (node, level) {
      var r;
      r = this.space(level) + '<!ATTLIST ' + node.elementName + ' ' + node.attributeName + ' ' + node.attributeType;
      if (node.defaultValueType !== '#DEFAULT') {
        r += ' ' + node.defaultValueType;
      }
      if (node.defaultValue) {
        r += ' "' + node.defaultValue + '"';
      }
      r += this.spacebeforeslash + '>' + this.newline;
      return r;
    };

    XMLStringWriter.prototype.dtdElement = function (node, level) {
      return this.space(level) + '<!ELEMENT ' + node.name + ' ' + node.value + this.spacebeforeslash + '>' + this.newline;
    };

    XMLStringWriter.prototype.dtdEntity = function (node, level) {
      var r;
      r = this.space(level) + '<!ENTITY';
      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;
        }
      }
      r += this.spacebeforeslash + '>' + this.newline;
      return r;
    };

    XMLStringWriter.prototype.dtdNotation = function (node, level) {
      var r;
      r = this.space(level) + '<!NOTATION ' + 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 + '"';
      }
      r += this.spacebeforeslash + '>' + this.newline;
      return r;
    };

    XMLStringWriter.prototype.openNode = function (node, level) {
      var att, name, r, ref;
      level || (level = 0);
      if (node instanceof XMLElement) {
        r = this.space(level) + '<' + node.name;
        ref = node.attributes;
        for (name in ref) {
          if (!hasProp.call(ref, name)) continue;
          att = ref[name];
          r += this.attribute(att);
        }
        r += (node.children ? '>' : '/>') + this.newline;
        return r;
      } else {
        r = this.space(level) + '<!DOCTYPE ' + node.rootNodeName;
        if (node.pubID && node.sysID) {
          r += ' PUBLIC "' + node.pubID + '" "' + node.sysID + '"';
        } else if (node.sysID) {
          r += ' SYSTEM "' + node.sysID + '"';
        }
        r += (node.children ? ' [' : '>') + this.newline;
        return r;
      }
    };

    XMLStringWriter.prototype.closeNode = function (node, level) {
      level || (level = 0);
      switch (false) {
        case !(node instanceof XMLElement):
          return this.space(level) + '</' + node.name + '>' + this.newline;
        case !(node instanceof XMLDocType):
          return this.space(level) + ']>' + this.newline;
      }
    };

    return XMLStringWriter;
  }(XMLWriterBase);
}).call(undefined);

},{"./XMLCData":205,"./XMLComment":206,"./XMLDTDAttList":207,"./XMLDTDElement":208,"./XMLDTDEntity":209,"./XMLDTDNotation":210,"./XMLDeclaration":211,"./XMLDocType":212,"./XMLElement":215,"./XMLProcessingInstruction":217,"./XMLRaw":218,"./XMLText":222,"./XMLWriterBase":223}],221:[function(require,module,exports){
'use strict';

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLStringifier,
      bind = function bind(fn, me) {
    return function () {
      return fn.apply(me, arguments);
    };
  },
      hasProp = {}.hasOwnProperty;

  module.exports = XMLStringifier = function () {
    function XMLStringifier(options) {
      this.assertLegalChar = bind(this.assertLegalChar, this);
      var key, ref, value;
      options || (options = {});
      this.noDoubleEncoding = options.noDoubleEncoding;
      ref = options.stringify || {};
      for (key in ref) {
        if (!hasProp.call(ref, key)) continue;
        value = ref[key];
        this[key] = value;
      }
    }

    XMLStringifier.prototype.eleName = function (val) {
      val = '' + val || '';
      return this.assertLegalChar(val);
    };

    XMLStringifier.prototype.eleText = function (val) {
      val = '' + val || '';
      return this.assertLegalChar(this.elEscape(val));
    };

    XMLStringifier.prototype.cdata = function (val) {
      val = '' + val || '';
      val = val.replace(']]>', ']]]]><![CDATA[>');
      return this.assertLegalChar(val);
    };

    XMLStringifier.prototype.comment = function (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) {
      return '' + val || '';
    };

    XMLStringifier.prototype.attName = function (val) {
      return val = '' + val || '';
    };

    XMLStringifier.prototype.attValue = function (val) {
      val = '' + val || '';
      return this.attEscape(val);
    };

    XMLStringifier.prototype.insTarget = function (val) {
      return '' + val || '';
    };

    XMLStringifier.prototype.insValue = function (val) {
      val = '' + val || '';
      if (val.match(/\?>/)) {
        throw new Error("Invalid processing instruction value: " + val);
      }
      return val;
    };

    XMLStringifier.prototype.xmlVersion = function (val) {
      val = '' + val || '';
      if (!val.match(/1\.[0-9]+/)) {
        throw new Error("Invalid version number: " + val);
      }
      return val;
    };

    XMLStringifier.prototype.xmlEncoding = function (val) {
      val = '' + val || '';
      if (!val.match(/^[A-Za-z](?:[A-Za-z0-9._-]|-)*$/)) {
        throw new Error("Invalid encoding: " + val);
      }
      return val;
    };

    XMLStringifier.prototype.xmlStandalone = function (val) {
      if (val) {
        return "yes";
      } else {
        return "no";
      }
    };

    XMLStringifier.prototype.dtdPubID = function (val) {
      return '' + val || '';
    };

    XMLStringifier.prototype.dtdSysID = function (val) {
      return '' + val || '';
    };

    XMLStringifier.prototype.dtdElementValue = function (val) {
      return '' + val || '';
    };

    XMLStringifier.prototype.dtdAttType = function (val) {
      return '' + val || '';
    };

    XMLStringifier.prototype.dtdAttDefault = function (val) {
      if (val != null) {
        return '' + val || '';
      } else {
        return val;
      }
    };

    XMLStringifier.prototype.dtdEntityValue = function (val) {
      return '' + val || '';
    };

    XMLStringifier.prototype.dtdNData = function (val) {
      return '' + 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 res;
      res = str.match(/[\0\uFFFE\uFFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/);
      if (res) {
        throw new Error("Invalid character in string: " + str + " at index " + res.index);
      }
      return str;
    };

    XMLStringifier.prototype.elEscape = function (str) {
      var ampregex;
      ampregex = this.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;
      ampregex = this.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(undefined);

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

var _create = require("babel-runtime/core-js/object/create");

var _create2 = _interopRequireDefault(_create);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLNode,
      XMLText,
      extend = function extend(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 = 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.value = this.stringify.eleText(text);
    }

    XMLText.prototype.clone = function () {
      return (0, _create2.default)(this);
    };

    XMLText.prototype.toString = function (options) {
      return this.options.writer.set(options).text(this);
    };

    return XMLText;
  }(XMLNode);
}).call(undefined);

},{"./XMLNode":216,"babel-runtime/core-js/object/create":14}],223:[function(require,module,exports){
'use strict';

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLWriterBase,
      hasProp = {}.hasOwnProperty;

  module.exports = XMLWriterBase = function () {
    function XMLWriterBase(options) {
      var key, ref, ref1, ref2, ref3, ref4, ref5, ref6, value;
      options || (options = {});
      this.pretty = options.pretty || false;
      this.allowEmpty = (ref = options.allowEmpty) != null ? ref : false;
      if (this.pretty) {
        this.indent = (ref1 = options.indent) != null ? ref1 : '  ';
        this.newline = (ref2 = options.newline) != null ? ref2 : '\n';
        this.offset = (ref3 = options.offset) != null ? ref3 : 0;
        this.dontprettytextnodes = (ref4 = options.dontprettytextnodes) != null ? ref4 : 0;
      } else {
        this.indent = '';
        this.newline = '';
        this.offset = 0;
        this.dontprettytextnodes = 0;
      }
      this.spacebeforeslash = (ref5 = options.spacebeforeslash) != null ? ref5 : '';
      if (this.spacebeforeslash === true) {
        this.spacebeforeslash = ' ';
      }
      this.newlinedefault = this.newline;
      this.prettydefault = this.pretty;
      ref6 = options.writer || {};
      for (key in ref6) {
        if (!hasProp.call(ref6, key)) continue;
        value = ref6[key];
        this[key] = value;
      }
    }

    XMLWriterBase.prototype.set = function (options) {
      var key, ref, value;
      options || (options = {});
      if ("pretty" in options) {
        this.pretty = options.pretty;
      }
      if ("allowEmpty" in options) {
        this.allowEmpty = options.allowEmpty;
      }
      if (this.pretty) {
        this.indent = "indent" in options ? options.indent : '  ';
        this.newline = "newline" in options ? options.newline : '\n';
        this.offset = "offset" in options ? options.offset : 0;
        this.dontprettytextnodes = "dontprettytextnodes" in options ? options.dontprettytextnodes : 0;
      } else {
        this.indent = '';
        this.newline = '';
        this.offset = 0;
        this.dontprettytextnodes = 0;
      }
      this.spacebeforeslash = "spacebeforeslash" in options ? options.spacebeforeslash : '';
      if (this.spacebeforeslash === true) {
        this.spacebeforeslash = ' ';
      }
      this.newlinedefault = this.newline;
      this.prettydefault = this.pretty;
      ref = options.writer || {};
      for (key in ref) {
        if (!hasProp.call(ref, key)) continue;
        value = ref[key];
        this[key] = value;
      }
      return this;
    };

    XMLWriterBase.prototype.space = function (level) {
      var indent;
      if (this.pretty) {
        indent = (level || 0) + this.offset + 1;
        if (indent > 0) {
          return new Array(indent).join(this.indent);
        } else {
          return '';
        }
      } else {
        return '';
      }
    };

    return XMLWriterBase;
  }();
}).call(undefined);

},{}],224:[function(require,module,exports){
'use strict';

// Generated by CoffeeScript 1.12.6
(function () {
  var XMLDocument, XMLDocumentCB, XMLStreamWriter, XMLStringWriter, assign, isFunction, ref;

  ref = require('./Utility'), assign = ref.assign, isFunction = ref.isFunction;

  XMLDocument = require('./XMLDocument');

  XMLDocumentCB = require('./XMLDocumentCB');

  XMLStringWriter = require('./XMLStringWriter');

  XMLStreamWriter = require('./XMLStreamWriter');

  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.doctype(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);
  };
}).call(undefined);

},{"./Utility":203,"./XMLDocument":213,"./XMLDocumentCB":214,"./XMLStreamWriter":219,"./XMLStringWriter":220}],225:[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
}

},{}],226:[function(require,module,exports){
'use strict';

// use crypto-browserify@1.0.9 to minify dist size
module.exports = require('crypto-browserify');

},{"crypto-browserify":136}],227:[function(require,module,exports){
(function (global){
"use strict";

var _create = require("babel-runtime/core-js/object/create");

var _create2 = _interopRequireDefault(_create);

var _classCallCheck2 = require("babel-runtime/helpers/classCallCheck");

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require("babel-runtime/helpers/createClass");

var _createClass3 = _interopRequireDefault(_createClass2);

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

var _typeof3 = _interopRequireDefault(_typeof2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

(function (f) {
  if ((typeof exports === "undefined" ? "undefined" : (0, _typeof3.default)(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.mime = f();
  }
})(function () {
  var define, module, exports;return function e(t, n, r) {
    function s(o, u) {
      if (!n[o]) {
        if (!t[o]) {
          var a = typeof require == "function" && require;if (!u && a) return a(o, !0);if (i) return i(o, !0);var f = new Error("Cannot find module '" + o + "'");throw f.code = "MODULE_NOT_FOUND", f;
        }var l = n[o] = { exports: {} };t[o][0].call(l.exports, function (e) {
          var n = t[o][1][e];return s(n ? n : e);
        }, l, l.exports, e, t, n, r);
      }return n[o].exports;
    }var i = typeof require == "function" && require;for (var o = 0; o < r.length; o++) {
      s(r[o]);
    }return s;
  }({ 1: [function (require, module, exports) {
      'use strict';

      /**
       * @param typeMap [Object] Map of MIME type -> Array[extensions]
       * @param ...
       */

      var Mime = function () {
        function Mime() {
          (0, _classCallCheck3.default)(this, Mime);

          this._types = (0, _create2.default)(null);
          this._extensions = (0, _create2.default)(null);

          for (var i = 0; i < arguments.length; i++) {
            this.define(arguments[i]);
          }
        }

        /**
         * Define mimetype -> xtension 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']});
         *
         * @param map (Object) type definitions
         */


        (0, _createClass3.default)(Mime, [{
          key: "define",
          value: function define(typeMap, force) {
            for (var type in typeMap) {
              var extensions = typeMap[type];
              for (var i = 0; i < extensions.length; i++) {
                var ext = extensions[i];
                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]) {
                this._extensions[type] = extensions[0];
              }
            }
          }

          /**
           * Lookup a mime type based on extension
           */

        }, {
          key: "getType",
          value: function getType(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
           */

        }, {
          key: "getExtension",
          value: function getExtension(type) {
            type = /^\s*([^;\s]*)/.test(type) && RegExp.$1;
            return type && this._extensions[type.toLowerCase()] || null;
          }
        }]);
        return Mime;
      }();

      module.exports = Mime;
    }, {}], 2: [function (r, module, exports) {
      'use strict';

      var Mime = r('./Mime');
      module.exports = new Mime(r('./types/standard'), r('./types/other'));
    }, { "./Mime": 1, "./types/other": 3, "./types/standard": 4 }], 3: [function (require, module, exports) {
      module.exports = { "application/prs.cww": ["cww"], "application/vnd.3gpp.pic-bw-large": ["plb"], "application/vnd.3gpp.pic-bw-small": ["psb"], "application/vnd.3gpp.pic-bw-var": ["pvb"], "application/vnd.3gpp2.tcap": ["tcap"], "application/vnd.3m.post-it-notes": ["pwn"], "application/vnd.accpac.simply.aso": ["aso"], "application/vnd.accpac.simply.imp": ["imp"], "application/vnd.acucobol": ["acu"], "application/vnd.acucorp": ["atc", "acutc"], "application/vnd.adobe.air-application-installer-package+zip": ["air"], "application/vnd.adobe.formscentral.fcdt": ["fcdt"], "application/vnd.adobe.fxp": ["fxp", "fxpl"], "application/vnd.adobe.xdp+xml": ["xdp"], "application/vnd.adobe.xfdf": ["xfdf"], "application/vnd.ahead.space": ["ahead"], "application/vnd.airzip.filesecure.azf": ["azf"], "application/vnd.airzip.filesecure.azs": ["azs"], "application/vnd.amazon.ebook": ["azw"], "application/vnd.americandynamics.acc": ["acc"], "application/vnd.amiga.ami": ["ami"], "application/vnd.android.package-archive": ["apk"], "application/vnd.anser-web-certificate-issue-initiation": ["cii"], "application/vnd.anser-web-funds-transfer-initiation": ["fti"], "application/vnd.antix.game-component": ["atx"], "application/vnd.apple.installer+xml": ["mpkg"], "application/vnd.apple.mpegurl": ["m3u8"], "application/vnd.apple.pkpass": ["pkpass"], "application/vnd.aristanetworks.swi": ["swi"], "application/vnd.astraea-software.iota": ["iota"], "application/vnd.audiograph": ["aep"], "application/vnd.blueice.multipass": ["mpm"], "application/vnd.bmi": ["bmi"], "application/vnd.businessobjects": ["rep"], "application/vnd.chemdraw+xml": ["cdxml"], "application/vnd.chipnuts.karaoke-mmd": ["mmd"], "application/vnd.cinderella": ["cdy"], "application/vnd.claymore": ["cla"], "application/vnd.cloanto.rp9": ["rp9"], "application/vnd.clonk.c4group": ["c4g", "c4d", "c4f", "c4p", "c4u"], "application/vnd.cluetrust.cartomobile-config": ["c11amc"], "application/vnd.cluetrust.cartomobile-config-pkg": ["c11amz"], "application/vnd.commonspace": ["csp"], "application/vnd.contact.cmsg": ["cdbcmsg"], "application/vnd.cosmocaller": ["cmc"], "application/vnd.crick.clicker": ["clkx"], "application/vnd.crick.clicker.keyboard": ["clkk"], "application/vnd.crick.clicker.palette": ["clkp"], "application/vnd.crick.clicker.template": ["clkt"], "application/vnd.crick.clicker.wordbank": ["clkw"], "application/vnd.criticaltools.wbs+xml": ["wbs"], "application/vnd.ctc-posml": ["pml"], "application/vnd.cups-ppd": ["ppd"], "application/vnd.curl.car": ["car"], "application/vnd.curl.pcurl": ["pcurl"], "application/vnd.dart": ["dart"], "application/vnd.data-vision.rdz": ["rdz"], "application/vnd.dece.data": ["uvf", "uvvf", "uvd", "uvvd"], "application/vnd.dece.ttml+xml": ["uvt", "uvvt"], "application/vnd.dece.unspecified": ["uvx", "uvvx"], "application/vnd.dece.zip": ["uvz", "uvvz"], "application/vnd.denovo.fcselayout-link": ["fe_launch"], "application/vnd.dna": ["dna"], "application/vnd.dolby.mlp": ["mlp"], "application/vnd.dpgraph": ["dpg"], "application/vnd.dreamfactory": ["dfac"], "application/vnd.ds-keypoint": ["kpxx"], "application/vnd.dvb.ait": ["ait"], "application/vnd.dvb.service": ["svc"], "application/vnd.dynageo": ["geo"], "application/vnd.ecowin.chart": ["mag"], "application/vnd.enliven": ["nml"], "application/vnd.epson.esf": ["esf"], "application/vnd.epson.msf": ["msf"], "application/vnd.epson.quickanime": ["qam"], "application/vnd.epson.salt": ["slt"], "application/vnd.epson.ssf": ["ssf"], "application/vnd.eszigno3+xml": ["es3", "et3"], "application/vnd.ezpix-album": ["ez2"], "application/vnd.ezpix-package": ["ez3"], "application/vnd.fdf": ["fdf"], "application/vnd.fdsn.mseed": ["mseed"], "application/vnd.fdsn.seed": ["seed", "dataless"], "application/vnd.flographit": ["gph"], "application/vnd.fluxtime.clip": ["ftc"], "application/vnd.framemaker": ["fm", "frame", "maker", "book"], "application/vnd.frogans.fnc": ["fnc"], "application/vnd.frogans.ltf": ["ltf"], "application/vnd.fsc.weblaunch": ["fsc"], "application/vnd.fujitsu.oasys": ["oas"], "application/vnd.fujitsu.oasys2": ["oa2"], "application/vnd.fujitsu.oasys3": ["oa3"], "application/vnd.fujitsu.oasysgp": ["fg5"], "application/vnd.fujitsu.oasysprs": ["bh2"], "application/vnd.fujixerox.ddd": ["ddd"], "application/vnd.fujixerox.docuworks": ["xdw"], "application/vnd.fujixerox.docuworks.binder": ["xbd"], "application/vnd.fuzzysheet": ["fzs"], "application/vnd.genomatix.tuxedo": ["txd"], "application/vnd.geogebra.file": ["ggb"], "application/vnd.geogebra.tool": ["ggt"], "application/vnd.geometry-explorer": ["gex", "gre"], "application/vnd.geonext": ["gxt"], "application/vnd.geoplan": ["g2w"], "application/vnd.geospace": ["g3w"], "application/vnd.gmx": ["gmx"], "application/vnd.google-apps.document": ["gdoc"], "application/vnd.google-apps.presentation": ["gslides"], "application/vnd.google-apps.spreadsheet": ["gsheet"], "application/vnd.google-earth.kml+xml": ["kml"], "application/vnd.google-earth.kmz": ["kmz"], "application/vnd.grafeq": ["gqf", "gqs"], "application/vnd.groove-account": ["gac"], "application/vnd.groove-help": ["ghf"], "application/vnd.groove-identity-message": ["gim"], "application/vnd.groove-injector": ["grv"], "application/vnd.groove-tool-message": ["gtm"], "application/vnd.groove-tool-template": ["tpl"], "application/vnd.groove-vcard": ["vcg"], "application/vnd.hal+xml": ["hal"], "application/vnd.handheld-entertainment+xml": ["zmm"], "application/vnd.hbci": ["hbci"], "application/vnd.hhe.lesson-player": ["les"], "application/vnd.hp-hpgl": ["hpgl"], "application/vnd.hp-hpid": ["hpid"], "application/vnd.hp-hps": ["hps"], "application/vnd.hp-jlyt": ["jlt"], "application/vnd.hp-pcl": ["pcl"], "application/vnd.hp-pclxl": ["pclxl"], "application/vnd.hydrostatix.sof-data": ["sfd-hdstx"], "application/vnd.ibm.minipay": ["mpy"], "application/vnd.ibm.modcap": ["afp", "listafp", "list3820"], "application/vnd.ibm.rights-management": ["irm"], "application/vnd.ibm.secure-container": ["sc"], "application/vnd.iccprofile": ["icc", "icm"], "application/vnd.igloader": ["igl"], "application/vnd.immervision-ivp": ["ivp"], "application/vnd.immervision-ivu": ["ivu"], "application/vnd.insors.igm": ["igm"], "application/vnd.intercon.formnet": ["xpw", "xpx"], "application/vnd.intergeo": ["i2g"], "application/vnd.intu.qbo": ["qbo"], "application/vnd.intu.qfx": ["qfx"], "application/vnd.ipunplugged.rcprofile": ["rcprofile"], "application/vnd.irepository.package+xml": ["irp"], "application/vnd.is-xpr": ["xpr"], "application/vnd.isac.fcs": ["fcs"], "application/vnd.jam": ["jam"], "application/vnd.jcp.javame.midlet-rms": ["rms"], "application/vnd.jisp": ["jisp"], "application/vnd.joost.joda-archive": ["joda"], "application/vnd.kahootz": ["ktz", "ktr"], "application/vnd.kde.karbon": ["karbon"], "application/vnd.kde.kchart": ["chrt"], "application/vnd.kde.kformula": ["kfo"], "application/vnd.kde.kivio": ["flw"], "application/vnd.kde.kontour": ["kon"], "application/vnd.kde.kpresenter": ["kpr", "kpt"], "application/vnd.kde.kspread": ["ksp"], "application/vnd.kde.kword": ["kwd", "kwt"], "application/vnd.kenameaapp": ["htke"], "application/vnd.kidspiration": ["kia"], "application/vnd.kinar": ["kne", "knp"], "application/vnd.koan": ["skp", "skd", "skt", "skm"], "application/vnd.kodak-descriptor": ["sse"], "application/vnd.las.las+xml": ["lasxml"], "application/vnd.llamagraphics.life-balance.desktop": ["lbd"], "application/vnd.llamagraphics.life-balance.exchange+xml": ["lbe"], "application/vnd.lotus-1-2-3": ["123"], "application/vnd.lotus-approach": ["apr"], "application/vnd.lotus-freelance": ["pre"], "application/vnd.lotus-notes": ["nsf"], "application/vnd.lotus-organizer": ["org"], "application/vnd.lotus-screencam": ["scm"], "application/vnd.lotus-wordpro": ["lwp"], "application/vnd.macports.portpkg": ["portpkg"], "application/vnd.mcd": ["mcd"], "application/vnd.medcalcdata": ["mc1"], "application/vnd.mediastation.cdkey": ["cdkey"], "application/vnd.mfer": ["mwf"], "application/vnd.mfmp": ["mfm"], "application/vnd.micrografx.flo": ["flo"], "application/vnd.micrografx.igx": ["igx"], "application/vnd.mif": ["mif"], "application/vnd.mobius.daf": ["daf"], "application/vnd.mobius.dis": ["dis"], "application/vnd.mobius.mbk": ["mbk"], "application/vnd.mobius.mqy": ["mqy"], "application/vnd.mobius.msl": ["msl"], "application/vnd.mobius.plc": ["plc"], "application/vnd.mobius.txf": ["txf"], "application/vnd.mophun.application": ["mpn"], "application/vnd.mophun.certificate": ["mpc"], "application/vnd.mozilla.xul+xml": ["xul"], "application/vnd.ms-artgalry": ["cil"], "application/vnd.ms-cab-compressed": ["cab"], "application/vnd.ms-excel": ["xls", "xlm", "xla", "xlc", "xlt", "xlw"], "application/vnd.ms-excel.addin.macroenabled.12": ["xlam"], "application/vnd.ms-excel.sheet.binary.macroenabled.12": ["xlsb"], "application/vnd.ms-excel.sheet.macroenabled.12": ["xlsm"], "application/vnd.ms-excel.template.macroenabled.12": ["xltm"], "application/vnd.ms-fontobject": ["eot"], "application/vnd.ms-htmlhelp": ["chm"], "application/vnd.ms-ims": ["ims"], "application/vnd.ms-lrm": ["lrm"], "application/vnd.ms-officetheme": ["thmx"], "application/vnd.ms-outlook": ["msg"], "application/vnd.ms-pki.seccat": ["cat"], "application/vnd.ms-pki.stl": ["stl"], "application/vnd.ms-powerpoint": ["ppt", "pps", "pot"], "application/vnd.ms-powerpoint.addin.macroenabled.12": ["ppam"], "application/vnd.ms-powerpoint.presentation.macroenabled.12": ["pptm"], "application/vnd.ms-powerpoint.slide.macroenabled.12": ["sldm"], "application/vnd.ms-powerpoint.slideshow.macroenabled.12": ["ppsm"], "application/vnd.ms-powerpoint.template.macroenabled.12": ["potm"], "application/vnd.ms-project": ["mpp", "mpt"], "application/vnd.ms-word.document.macroenabled.12": ["docm"], "application/vnd.ms-word.template.macroenabled.12": ["dotm"], "application/vnd.ms-works": ["wps", "wks", "wcm", "wdb"], "application/vnd.ms-wpl": ["wpl"], "application/vnd.ms-xpsdocument": ["xps"], "application/vnd.mseq": ["mseq"], "application/vnd.musician": ["mus"], "application/vnd.muvee.style": ["msty"], "application/vnd.mynfc": ["taglet"], "application/vnd.neurolanguage.nlu": ["nlu"], "application/vnd.nitf": ["ntf", "nitf"], "application/vnd.noblenet-directory": ["nnd"], "application/vnd.noblenet-sealer": ["nns"], "application/vnd.noblenet-web": ["nnw"], "application/vnd.nokia.n-gage.data": ["ngdat"], "application/vnd.nokia.n-gage.symbian.install": ["n-gage"], "application/vnd.nokia.radio-preset": ["rpst"], "application/vnd.nokia.radio-presets": ["rpss"], "application/vnd.novadigm.edm": ["edm"], "application/vnd.novadigm.edx": ["edx"], "application/vnd.novadigm.ext": ["ext"], "application/vnd.oasis.opendocument.chart": ["odc"], "application/vnd.oasis.opendocument.chart-template": ["otc"], "application/vnd.oasis.opendocument.database": ["odb"], "application/vnd.oasis.opendocument.formula": ["odf"], "application/vnd.oasis.opendocument.formula-template": ["odft"], "application/vnd.oasis.opendocument.graphics": ["odg"], "application/vnd.oasis.opendocument.graphics-template": ["otg"], "application/vnd.oasis.opendocument.image": ["odi"], "application/vnd.oasis.opendocument.image-template": ["oti"], "application/vnd.oasis.opendocument.presentation": ["odp"], "application/vnd.oasis.opendocument.presentation-template": ["otp"], "application/vnd.oasis.opendocument.spreadsheet": ["ods"], "application/vnd.oasis.opendocument.spreadsheet-template": ["ots"], "application/vnd.oasis.opendocument.text": ["odt"], "application/vnd.oasis.opendocument.text-master": ["odm"], "application/vnd.oasis.opendocument.text-template": ["ott"], "application/vnd.oasis.opendocument.text-web": ["oth"], "application/vnd.olpc-sugar": ["xo"], "application/vnd.oma.dd2+xml": ["dd2"], "application/vnd.openofficeorg.extension": ["oxt"], "application/vnd.openxmlformats-officedocument.presentationml.presentation": ["pptx"], "application/vnd.openxmlformats-officedocument.presentationml.slide": ["sldx"], "application/vnd.openxmlformats-officedocument.presentationml.slideshow": ["ppsx"], "application/vnd.openxmlformats-officedocument.presentationml.template": ["potx"], "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet": ["xlsx"], "application/vnd.openxmlformats-officedocument.spreadsheetml.template": ["xltx"], "application/vnd.openxmlformats-officedocument.wordprocessingml.document": ["docx"], "application/vnd.openxmlformats-officedocument.wordprocessingml.template": ["dotx"], "application/vnd.osgeo.mapguide.package": ["mgp"], "application/vnd.osgi.dp": ["dp"], "application/vnd.osgi.subsystem": ["esa"], "application/vnd.palm": ["pdb", "pqa", "oprc"], "application/vnd.pawaafile": ["paw"], "application/vnd.pg.format": ["str"], "application/vnd.pg.osasli": ["ei6"], "application/vnd.picsel": ["efif"], "application/vnd.pmi.widget": ["wg"], "application/vnd.pocketlearn": ["plf"], "application/vnd.powerbuilder6": ["pbd"], "application/vnd.previewsystems.box": ["box"], "application/vnd.proteus.magazine": ["mgz"], "application/vnd.publishare-delta-tree": ["qps"], "application/vnd.pvi.ptid1": ["ptid"], "application/vnd.quark.quarkxpress": ["qxd", "qxt", "qwd", "qwt", "qxl", "qxb"], "application/vnd.realvnc.bed": ["bed"], "application/vnd.recordare.musicxml": ["mxl"], "application/vnd.recordare.musicxml+xml": ["musicxml"], "application/vnd.rig.cryptonote": ["cryptonote"], "application/vnd.rim.cod": ["cod"], "application/vnd.rn-realmedia": ["rm"], "application/vnd.rn-realmedia-vbr": ["rmvb"], "application/vnd.route66.link66+xml": ["link66"], "application/vnd.sailingtracker.track": ["st"], "application/vnd.seemail": ["see"], "application/vnd.sema": ["sema"], "application/vnd.semd": ["semd"], "application/vnd.semf": ["semf"], "application/vnd.shana.informed.formdata": ["ifm"], "application/vnd.shana.informed.formtemplate": ["itp"], "application/vnd.shana.informed.interchange": ["iif"], "application/vnd.shana.informed.package": ["ipk"], "application/vnd.simtech-mindmapper": ["twd", "twds"], "application/vnd.smaf": ["mmf"], "application/vnd.smart.teacher": ["teacher"], "application/vnd.solent.sdkm+xml": ["sdkm", "sdkd"], "application/vnd.spotfire.dxp": ["dxp"], "application/vnd.spotfire.sfs": ["sfs"], "application/vnd.stardivision.calc": ["sdc"], "application/vnd.stardivision.draw": ["sda"], "application/vnd.stardivision.impress": ["sdd"], "application/vnd.stardivision.math": ["smf"], "application/vnd.stardivision.writer": ["sdw", "vor"], "application/vnd.stardivision.writer-global": ["sgl"], "application/vnd.stepmania.package": ["smzip"], "application/vnd.stepmania.stepchart": ["sm"], "application/vnd.sun.wadl+xml": ["wadl"], "application/vnd.sun.xml.calc": ["sxc"], "application/vnd.sun.xml.calc.template": ["stc"], "application/vnd.sun.xml.draw": ["sxd"], "application/vnd.sun.xml.draw.template": ["std"], "application/vnd.sun.xml.impress": ["sxi"], "application/vnd.sun.xml.impress.template": ["sti"], "application/vnd.sun.xml.math": ["sxm"], "application/vnd.sun.xml.writer": ["sxw"], "application/vnd.sun.xml.writer.global": ["sxg"], "application/vnd.sun.xml.writer.template": ["stw"], "application/vnd.sus-calendar": ["sus", "susp"], "application/vnd.svd": ["svd"], "application/vnd.symbian.install": ["sis", "sisx"], "application/vnd.syncml+xml": ["xsm"], "application/vnd.syncml.dm+wbxml": ["bdm"], "application/vnd.syncml.dm+xml": ["xdm"], "application/vnd.tao.intent-module-archive": ["tao"], "application/vnd.tcpdump.pcap": ["pcap", "cap", "dmp"], "application/vnd.tmobile-livetv": ["tmo"], "application/vnd.trid.tpt": ["tpt"], "application/vnd.triscape.mxs": ["mxs"], "application/vnd.trueapp": ["tra"], "application/vnd.ufdl": ["ufd", "ufdl"], "application/vnd.uiq.theme": ["utz"], "application/vnd.umajin": ["umj"], "application/vnd.unity": ["unityweb"], "application/vnd.uoml+xml": ["uoml"], "application/vnd.vcx": ["vcx"], "application/vnd.visio": ["vsd", "vst", "vss", "vsw"], "application/vnd.visionary": ["vis"], "application/vnd.vsf": ["vsf"], "application/vnd.wap.wbxml": ["wbxml"], "application/vnd.wap.wmlc": ["wmlc"], "application/vnd.wap.wmlscriptc": ["wmlsc"], "application/vnd.webturbo": ["wtb"], "application/vnd.wolfram.player": ["nbp"], "application/vnd.wordperfect": ["wpd"], "application/vnd.wqd": ["wqd"], "application/vnd.wt.stf": ["stf"], "application/vnd.xara": ["xar"], "application/vnd.xfdl": ["xfdl"], "application/vnd.yamaha.hv-dic": ["hvd"], "application/vnd.yamaha.hv-script": ["hvs"], "application/vnd.yamaha.hv-voice": ["hvp"], "application/vnd.yamaha.openscoreformat": ["osf"], "application/vnd.yamaha.openscoreformat.osfpvg+xml": ["osfpvg"], "application/vnd.yamaha.smaf-audio": ["saf"], "application/vnd.yamaha.smaf-phrase": ["spf"], "application/vnd.yellowriver-custom-menu": ["cmp"], "application/vnd.zul": ["zir", "zirz"], "application/vnd.zzazz.deck+xml": ["zaz"], "application/x-7z-compressed": ["7z"], "application/x-abiword": ["abw"], "application/x-ace-compressed": ["ace"], "application/x-apple-diskimage": [], "application/x-arj": ["arj"], "application/x-authorware-bin": ["aab", "x32", "u32", "vox"], "application/x-authorware-map": ["aam"], "application/x-authorware-seg": ["aas"], "application/x-bcpio": ["bcpio"], "application/x-bdoc": [], "application/x-bittorrent": ["torrent"], "application/x-blorb": ["blb", "blorb"], "application/x-bzip": ["bz"], "application/x-bzip2": ["bz2", "boz"], "application/x-cbr": ["cbr", "cba", "cbt", "cbz", "cb7"], "application/x-cdlink": ["vcd"], "application/x-cfs-compressed": ["cfs"], "application/x-chat": ["chat"], "application/x-chess-pgn": ["pgn"], "application/x-chrome-extension": ["crx"], "application/x-cocoa": ["cco"], "application/x-conference": ["nsc"], "application/x-cpio": ["cpio"], "application/x-csh": ["csh"], "application/x-debian-package": ["udeb"], "application/x-dgc-compressed": ["dgc"], "application/x-director": ["dir", "dcr", "dxr", "cst", "cct", "cxt", "w3d", "fgd", "swa"], "application/x-doom": ["wad"], "application/x-dtbncx+xml": ["ncx"], "application/x-dtbook+xml": ["dtb"], "application/x-dtbresource+xml": ["res"], "application/x-dvi": ["dvi"], "application/x-envoy": ["evy"], "application/x-eva": ["eva"], "application/x-font-bdf": ["bdf"], "application/x-font-ghostscript": ["gsf"], "application/x-font-linux-psf": ["psf"], "application/x-font-otf": [], "application/x-font-pcf": ["pcf"], "application/x-font-snf": ["snf"], "application/x-font-ttf": ["ttf", "ttc"], "application/x-font-type1": ["pfa", "pfb", "pfm", "afm"], "application/x-freearc": ["arc"], "application/x-futuresplash": ["spl"], "application/x-gca-compressed": ["gca"], "application/x-glulx": ["ulx"], "application/x-gnumeric": ["gnumeric"], "application/x-gramps-xml": ["gramps"], "application/x-gtar": ["gtar"], "application/x-hdf": ["hdf"], "application/x-httpd-php": ["php"], "application/x-install-instructions": ["install"], "application/x-iso9660-image": [], "application/x-java-archive-diff": ["jardiff"], "application/x-java-jnlp-file": ["jnlp"], "application/x-latex": ["latex"], "application/x-lua-bytecode": ["luac"], "application/x-lzh-compressed": ["lzh", "lha"], "application/x-makeself": ["run"], "application/x-mie": ["mie"], "application/x-mobipocket-ebook": ["prc", "mobi"], "application/x-ms-application": ["application"], "application/x-ms-shortcut": ["lnk"], "application/x-ms-wmd": ["wmd"], "application/x-ms-wmz": ["wmz"], "application/x-ms-xbap": ["xbap"], "application/x-msaccess": ["mdb"], "application/x-msbinder": ["obd"], "application/x-mscardfile": ["crd"], "application/x-msclip": ["clp"], "application/x-msdos-program": [], "application/x-msdownload": ["com", "bat"], "application/x-msmediaview": ["mvb", "m13", "m14"], "application/x-msmetafile": ["wmf", "emf", "emz"], "application/x-msmoney": ["mny"], "application/x-mspublisher": ["pub"], "application/x-msschedule": ["scd"], "application/x-msterminal": ["trm"], "application/x-mswrite": ["wri"], "application/x-netcdf": ["nc", "cdf"], "application/x-ns-proxy-autoconfig": ["pac"], "application/x-nzb": ["nzb"], "application/x-perl": ["pl", "pm"], "application/x-pilot": [], "application/x-pkcs12": ["p12", "pfx"], "application/x-pkcs7-certificates": ["p7b", "spc"], "application/x-pkcs7-certreqresp": ["p7r"], "application/x-rar-compressed": ["rar"], "application/x-redhat-package-manager": ["rpm"], "application/x-research-info-systems": ["ris"], "application/x-sea": ["sea"], "application/x-sh": ["sh"], "application/x-shar": ["shar"], "application/x-shockwave-flash": ["swf"], "application/x-silverlight-app": ["xap"], "application/x-sql": ["sql"], "application/x-stuffit": ["sit"], "application/x-stuffitx": ["sitx"], "application/x-subrip": ["srt"], "application/x-sv4cpio": ["sv4cpio"], "application/x-sv4crc": ["sv4crc"], "application/x-t3vm-image": ["t3"], "application/x-tads": ["gam"], "application/x-tar": ["tar"], "application/x-tcl": ["tcl", "tk"], "application/x-tex": ["tex"], "application/x-tex-tfm": ["tfm"], "application/x-texinfo": ["texinfo", "texi"], "application/x-tgif": ["obj"], "application/x-ustar": ["ustar"], "application/x-virtualbox-hdd": ["hdd"], "application/x-virtualbox-ova": ["ova"], "application/x-virtualbox-ovf": ["ovf"], "application/x-virtualbox-vbox": ["vbox"], "application/x-virtualbox-vbox-extpack": ["vbox-extpack"], "application/x-virtualbox-vdi": ["vdi"], "application/x-virtualbox-vhd": ["vhd"], "application/x-virtualbox-vmdk": ["vmdk"], "application/x-wais-source": ["src"], "application/x-web-app-manifest+json": ["webapp"], "application/x-x509-ca-cert": ["der", "crt", "pem"], "application/x-xfig": ["fig"], "application/x-xliff+xml": ["xlf"], "application/x-xpinstall": ["xpi"], "application/x-xz": ["xz"], "application/x-zmachine": ["z1", "z2", "z3", "z4", "z5", "z6", "z7", "z8"], "audio/vnd.dece.audio": ["uva", "uvva"], "audio/vnd.digital-winds": ["eol"], "audio/vnd.dra": ["dra"], "audio/vnd.dts": ["dts"], "audio/vnd.dts.hd": ["dtshd"], "audio/vnd.lucent.voice": ["lvp"], "audio/vnd.ms-playready.media.pya": ["pya"], "audio/vnd.nuera.ecelp4800": ["ecelp4800"], "audio/vnd.nuera.ecelp7470": ["ecelp7470"], "audio/vnd.nuera.ecelp9600": ["ecelp9600"], "audio/vnd.rip": ["rip"], "audio/x-aac": ["aac"], "audio/x-aiff": ["aif", "aiff", "aifc"], "audio/x-caf": ["caf"], "audio/x-flac": ["flac"], "audio/x-m4a": [], "audio/x-matroska": ["mka"], "audio/x-mpegurl": ["m3u"], "audio/x-ms-wax": ["wax"], "audio/x-ms-wma": ["wma"], "audio/x-pn-realaudio": ["ram", "ra"], "audio/x-pn-realaudio-plugin": ["rmp"], "audio/x-realaudio": [], "audio/x-wav": [], "chemical/x-cdx": ["cdx"], "chemical/x-cif": ["cif"], "chemical/x-cmdf": ["cmdf"], "chemical/x-cml": ["cml"], "chemical/x-csml": ["csml"], "chemical/x-xyz": ["xyz"], "image/prs.btif": ["btif"], "image/vnd.adobe.photoshop": ["psd"], "image/vnd.dece.graphic": ["uvi", "uvvi", "uvg", "uvvg"], "image/vnd.djvu": ["djvu", "djv"], "image/vnd.dvb.subtitle": [], "image/vnd.dwg": ["dwg"], "image/vnd.dxf": ["dxf"], "image/vnd.fastbidsheet": ["fbs"], "image/vnd.fpx": ["fpx"], "image/vnd.fst": ["fst"], "image/vnd.fujixerox.edmics-mmr": ["mmr"], "image/vnd.fujixerox.edmics-rlc": ["rlc"], "image/vnd.ms-modi": ["mdi"], "image/vnd.ms-photo": ["wdp"], "image/vnd.net-fpx": ["npx"], "image/vnd.wap.wbmp": ["wbmp"], "image/vnd.xiff": ["xif"], "image/x-3ds": ["3ds"], "image/x-cmu-raster": ["ras"], "image/x-cmx": ["cmx"], "image/x-freehand": ["fh", "fhc", "fh4", "fh5", "fh7"], "image/x-icon": ["ico"], "image/x-jng": ["jng"], "image/x-mrsid-image": ["sid"], "image/x-ms-bmp": [], "image/x-pcx": ["pcx"], "image/x-pict": ["pic", "pct"], "image/x-portable-anymap": ["pnm"], "image/x-portable-bitmap": ["pbm"], "image/x-portable-graymap": ["pgm"], "image/x-portable-pixmap": ["ppm"], "image/x-rgb": ["rgb"], "image/x-tga": ["tga"], "image/x-xbitmap": ["xbm"], "image/x-xpixmap": ["xpm"], "image/x-xwindowdump": ["xwd"], "model/vnd.collada+xml": ["dae"], "model/vnd.dwf": ["dwf"], "model/vnd.gdl": ["gdl"], "model/vnd.gtw": ["gtw"], "model/vnd.mts": ["mts"], "model/vnd.vtu": ["vtu"], "text/prs.lines.tag": ["dsc"], "text/vnd.curl": ["curl"], "text/vnd.curl.dcurl": ["dcurl"], "text/vnd.curl.mcurl": ["mcurl"], "text/vnd.curl.scurl": ["scurl"], "text/vnd.dvb.subtitle": ["sub"], "text/vnd.fly": ["fly"], "text/vnd.fmi.flexstor": ["flx"], "text/vnd.graphviz": ["gv"], "text/vnd.in3d.3dml": ["3dml"], "text/vnd.in3d.spot": ["spot"], "text/vnd.sun.j2me.app-descriptor": ["jad"], "text/vnd.wap.wml": ["wml"], "text/vnd.wap.wmlscript": ["wmls"], "text/x-asm": ["s", "asm"], "text/x-c": ["c", "cc", "cxx", "cpp", "h", "hh", "dic"], "text/x-component": ["htc"], "text/x-fortran": ["f", "for", "f77", "f90"], "text/x-handlebars-template": ["hbs"], "text/x-java-source": ["java"], "text/x-lua": ["lua"], "text/x-markdown": ["mkd"], "text/x-nfo": ["nfo"], "text/x-opml": ["opml"], "text/x-org": [], "text/x-pascal": ["p", "pas"], "text/x-processing": ["pde"], "text/x-sass": ["sass"], "text/x-scss": ["scss"], "text/x-setext": ["etx"], "text/x-sfv": ["sfv"], "text/x-suse-ymp": ["ymp"], "text/x-uuencode": ["uu"], "text/x-vcalendar": ["vcs"], "text/x-vcard": ["vcf"], "video/vnd.dece.hd": ["uvh", "uvvh"], "video/vnd.dece.mobile": ["uvm", "uvvm"], "video/vnd.dece.pd": ["uvp", "uvvp"], "video/vnd.dece.sd": ["uvs", "uvvs"], "video/vnd.dece.video": ["uvv", "uvvv"], "video/vnd.dvb.file": ["dvb"], "video/vnd.fvt": ["fvt"], "video/vnd.mpegurl": ["mxu", "m4u"], "video/vnd.ms-playready.media.pyv": ["pyv"], "video/vnd.uvvu.mp4": ["uvu", "uvvu"], "video/vnd.vivo": ["viv"], "video/x-f4v": ["f4v"], "video/x-fli": ["fli"], "video/x-flv": ["flv"], "video/x-m4v": ["m4v"], "video/x-matroska": ["mkv", "mk3d", "mks"], "video/x-mng": ["mng"], "video/x-ms-asf": ["asf", "asx"], "video/x-ms-vob": ["vob"], "video/x-ms-wm": ["wm"], "video/x-ms-wmv": ["wmv"], "video/x-ms-wmx": ["wmx"], "video/x-ms-wvx": ["wvx"], "video/x-msvideo": ["avi"], "video/x-sgi-movie": ["movie"], "video/x-smv": ["smv"], "x-conference/x-cooltalk": ["ice"] };
    }, {}], 4: [function (require, module, exports) {
      module.exports = { "application/andrew-inset": ["ez"], "application/applixware": ["aw"], "application/atom+xml": ["atom"], "application/atomcat+xml": ["atomcat"], "application/atomsvc+xml": ["atomsvc"], "application/bdoc": ["bdoc"], "application/ccxml+xml": ["ccxml"], "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"], "application/emma+xml": ["emma"], "application/epub+zip": ["epub"], "application/exi": ["exi"], "application/font-tdpfr": ["pfr"], "application/font-woff": ["woff"], "application/font-woff2": ["woff2"], "application/geo+json": ["geojson"], "application/gml+xml": ["gml"], "application/gpx+xml": ["gpx"], "application/gxf": ["gxf"], "application/gzip": ["gz"], "application/hyperstudio": ["stk"], "application/inkml+xml": ["ink", "inkml"], "application/ipfix": ["ipfix"], "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/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/mods+xml": ["mods"], "application/mp21": ["m21", "mp21"], "application/mp4": ["mp4s", "m4p"], "application/msword": ["doc", "dot"], "application/mxf": ["mxf"], "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/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/pskc+xml": ["pskcxml"], "application/rdf+xml": ["rdf"], "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/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/set-payment-initiation": ["setpay"], "application/set-registration-initiation": ["setreg"], "application/shf+xml": ["shf"], "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/tei+xml": ["tei", "teicorpus"], "application/thraud+xml": ["tfi"], "application/timestamped-data": ["tsd"], "application/voicexml+xml": ["vxml"], "application/widget": ["wgt"], "application/winhlp": ["hlp"], "application/wsdl+xml": ["wsdl"], "application/wspolicy+xml": ["wspolicy"], "application/xaml+xml": ["xaml"], "application/xcap-diff+xml": ["xdf"], "application/xenc+xml": ["xenc"], "application/xhtml+xml": ["xhtml", "xht"], "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": [], "audio/adpcm": ["adp"], "audio/basic": ["au", "snd"], "audio/midi": ["mid", "midi", "kar", "rmi"], "audio/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": [], "audio/webm": ["weba"], "audio/xm": ["xm"], "font/otf": ["otf"], "image/apng": ["apng"], "image/bmp": ["bmp"], "image/cgm": ["cgm"], "image/g3fax": ["g3"], "image/gif": ["gif"], "image/ief": ["ief"], "image/jpeg": ["jpeg", "jpg", "jpe"], "image/ktx": ["ktx"], "image/png": ["png"], "image/sgi": ["sgi"], "image/svg+xml": ["svg", "svgz"], "image/tiff": ["tiff", "tif"], "image/webp": ["webp"], "message/rfc822": ["eml", "mime"], "model/gltf+json": ["gltf"], "model/gltf-binary": ["glb"], "model/iges": ["igs", "iges"], "model/mesh": ["msh", "mesh", "silo"], "model/vrml": ["wrl", "vrml"], "model/x3d+binary": ["x3db", "x3dbz"], "model/x3d+vrml": ["x3dv", "x3dvz"], "model/x3d+xml": ["x3d", "x3dz"], "text/cache-manifest": ["appcache", "manifest"], "text/calendar": ["ics", "ifb"], "text/coffeescript": ["coffee", "litcoffee"], "text/css": ["css"], "text/csv": ["csv"], "text/hjson": ["hjson"], "text/html": ["html", "htm", "shtml"], "text/jade": ["jade"], "text/jsx": ["jsx"], "text/less": ["less"], "text/markdown": ["markdown", "md"], "text/mathml": ["mml"], "text/n3": ["n3"], "text/plain": ["txt", "text", "conf", "def", "list", "log", "in", "ini"], "text/richtext": ["rtx"], "text/rtf": [], "text/sgml": ["sgml", "sgm"], "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": [], "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"] };
    }, {}] }, {}, [2])(2);
});

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"babel-runtime/core-js/object/create":14,"babel-runtime/helpers/classCallCheck":24,"babel-runtime/helpers/createClass":25,"babel-runtime/helpers/typeof":26}],228:[function(require,module,exports){
'use strict';

// 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);
};

},{"escape-html":144}],229:[function(require,module,exports){
(function (process,Buffer){
'use strict';

var _stringify = require('babel-runtime/core-js/json/stringify');

var _stringify2 = _interopRequireDefault(_stringify);

var _typeof2 = require('babel-runtime/helpers/typeof');

var _typeof3 = _interopRequireDefault(_typeof2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

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 _Promise;

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 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('5s'), ms('5s')];

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);
  }

  // Promise
  if (!_Promise) {
    _Promise = require('any-promise');
  }
  return new _Promise(function (resolve, reject) {
    exports.requestWithCallback(url, args, makeCallback(resolve, reject));
  });
};

exports.requestWithCallback = function requestWithCallback(url, args, callback) {
  // requestWithCallback(url, callback)
  if (!url || typeof url !== 'string' && (typeof url === 'undefined' ? 'undefined' : (0, _typeof3.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 = 'http://' + 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 (args.timeout) {
    options.timeout = args.timeout;
  }

  var sslNames = ['pfx', 'key', 'passphrase', 'cert', 'ca', 'ciphers', 'rejectUnauthorized', 'secureProtocol', 'secureOptions'];
  for (var i = 0; i < sslNames.length; i++) {
    var 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;
  }

  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).type === 'application/json') {
          body = (0, _stringify2.default)(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) {
      var 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: ' + (0, _stringify2.default)(agent.getCurrentStatus());
      }
      err.message += ', ' + options.method + ' ' + url + ' ' + statusCode + ' (connected: ' + connected + ', keepalive socket: ' + keepAliveSocket + agentStatus + ')' + '\nheaders: ' + (0, _stringify2.default)(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
    };
  }

  // set user-agent
  if (!options.headers['User-Agent'] && !options.headers['user-agent']) {
    options.headers['User-Agent'] = navigator.userAgent;
  }

  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);
          });
        } 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
  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('timeout', 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)
},{"_process":159,"any-promise":8,"babel-runtime/core-js/json/stringify":12,"babel-runtime/helpers/typeof":26,"buffer":31,"constants":37,"debug":142,"http":184,"https":146,"humanize-ms":147,"url":191,"util":196}]},{},[1])(1)
});