1.index.js

        }, this.capability.reject);
        return;
      }
      this.refSet = null;
      this.capability.resolve();
    }
  };
  return ObjectLoader;
}();
exports.Catalog = Catalog;
exports.ObjectLoader = ObjectLoader;
exports.XRef = XRef;
exports.FileSpec = FileSpec;

/***/ }),
/* 138 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

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

var EOF = {};
var Name = function NameClosure() {
  function Name(name) {
    this.name = name;
  }
  Name.prototype = {};
  var nameCache = Object.create(null);
  Name.get = function Name_get(name) {
    var nameValue = nameCache[name];
    return nameValue ? nameValue : nameCache[name] = new Name(name);
  };
  return Name;
}();
var Cmd = function CmdClosure() {
  function Cmd(cmd) {
    this.cmd = cmd;
  }
  Cmd.prototype = {};
  var cmdCache = Object.create(null);
  Cmd.get = function Cmd_get(cmd) {
    var cmdValue = cmdCache[cmd];
    return cmdValue ? cmdValue : cmdCache[cmd] = new Cmd(cmd);
  };
  return Cmd;
}();
var Dict = function DictClosure() {
  var nonSerializable = function nonSerializableClosure() {
    return nonSerializable;
  };
  function Dict(xref) {
    this._map = Object.create(null);
    this.xref = xref;
    this.objId = null;
    this.suppressEncryption = false;
    this.__nonSerializable__ = nonSerializable;
  }
  Dict.prototype = {
    assignXref: function Dict_assignXref(newXref) {
      this.xref = newXref;
    },
    get: function Dict_get(key1, key2, key3) {
      var value;
      var xref = this.xref,
          suppressEncryption = this.suppressEncryption;
      if (typeof (value = this._map[key1]) !== 'undefined' || key1 in this._map || typeof key2 === 'undefined') {
        return xref ? xref.fetchIfRef(value, suppressEncryption) : value;
      }
      if (typeof (value = this._map[key2]) !== 'undefined' || key2 in this._map || typeof key3 === 'undefined') {
        return xref ? xref.fetchIfRef(value, suppressEncryption) : value;
      }
      value = this._map[key3] || null;
      return xref ? xref.fetchIfRef(value, suppressEncryption) : value;
    },
    getAsync: function Dict_getAsync(key1, key2, key3) {
      var value;
      var xref = this.xref,
          suppressEncryption = this.suppressEncryption;
      if (typeof (value = this._map[key1]) !== 'undefined' || key1 in this._map || typeof key2 === 'undefined') {
        if (xref) {
          return xref.fetchIfRefAsync(value, suppressEncryption);
        }
        return Promise.resolve(value);
      }
      if (typeof (value = this._map[key2]) !== 'undefined' || key2 in this._map || typeof key3 === 'undefined') {
        if (xref) {
          return xref.fetchIfRefAsync(value, suppressEncryption);
        }
        return Promise.resolve(value);
      }
      value = this._map[key3] || null;
      if (xref) {
        return xref.fetchIfRefAsync(value, suppressEncryption);
      }
      return Promise.resolve(value);
    },
    getArray: function Dict_getArray(key1, key2, key3) {
      var value = this.get(key1, key2, key3);
      var xref = this.xref,
          suppressEncryption = this.suppressEncryption;
      if (!Array.isArray(value) || !xref) {
        return value;
      }
      value = value.slice();
      for (var i = 0, ii = value.length; i < ii; i++) {
        if (!isRef(value[i])) {
          continue;
        }
        value[i] = xref.fetch(value[i], suppressEncryption);
      }
      return value;
    },
    getRaw: function Dict_getRaw(key) {
      return this._map[key];
    },
    getKeys: function Dict_getKeys() {
      return Object.keys(this._map);
    },
    set: function Dict_set(key, value) {
      this._map[key] = value;
    },
    has: function Dict_has(key) {
      return key in this._map;
    },
    forEach: function Dict_forEach(callback) {
      for (var key in this._map) {
        callback(key, this.get(key));
      }
    }
  };
  Dict.empty = new Dict(null);
  Dict.merge = function (xref, dictArray) {
    var mergedDict = new Dict(xref);
    for (var i = 0, ii = dictArray.length; i < ii; i++) {
      var dict = dictArray[i];
      if (!isDict(dict)) {
        continue;
      }
      for (var keyName in dict._map) {
        if (mergedDict._map[keyName] !== undefined) {
          continue;
        }
        mergedDict._map[keyName] = dict._map[keyName];
      }
    }
    return mergedDict;
  };
  return Dict;
}();
var Ref = function RefClosure() {
  function Ref(num, gen) {
    this.num = num;
    this.gen = gen;
  }
  Ref.prototype = {
    toString: function Ref_toString() {
      var str = this.num + 'R';
      if (this.gen !== 0) {
        str += this.gen;
      }
      return str;
    }
  };
  return Ref;
}();
var RefSet = function RefSetClosure() {
  function RefSet() {
    this.dict = Object.create(null);
  }
  RefSet.prototype = {
    has: function RefSet_has(ref) {
      return ref.toString() in this.dict;
    },
    put: function RefSet_put(ref) {
      this.dict[ref.toString()] = true;
    },
    remove: function RefSet_remove(ref) {
      delete this.dict[ref.toString()];
    }
  };
  return RefSet;
}();
var RefSetCache = function RefSetCacheClosure() {
  function RefSetCache() {
    this.dict = Object.create(null);
  }
  RefSetCache.prototype = {
    get: function RefSetCache_get(ref) {
      return this.dict[ref.toString()];
    },
    has: function RefSetCache_has(ref) {
      return ref.toString() in this.dict;
    },
    put: function RefSetCache_put(ref, obj) {
      this.dict[ref.toString()] = obj;
    },
    putAlias: function RefSetCache_putAlias(ref, aliasRef) {
      this.dict[ref.toString()] = this.get(aliasRef);
    },
    forEach: function RefSetCache_forEach(fn, thisArg) {
      for (var i in this.dict) {
        fn.call(thisArg, this.dict[i]);
      }
    },
    clear: function RefSetCache_clear() {
      this.dict = Object.create(null);
    }
  };
  return RefSetCache;
}();
function isEOF(v) {
  return v === EOF;
}
function isName(v, name) {
  return v instanceof Name && (name === undefined || v.name === name);
}
function isCmd(v, cmd) {
  return v instanceof Cmd && (cmd === undefined || v.cmd === cmd);
}
function isDict(v, type) {
  return v instanceof Dict && (type === undefined || isName(v.get('Type'), type));
}
function isRef(v) {
  return v instanceof Ref;
}
function isRefsEqual(v1, v2) {
  return v1.num === v2.num && v1.gen === v2.gen;
}
function isStream(v) {
  return (typeof v === 'undefined' ? 'undefined' : _typeof(v)) === 'object' && v !== null && v.getBytes !== undefined;
}
exports.EOF = EOF;
exports.Cmd = Cmd;
exports.Dict = Dict;
exports.Name = Name;
exports.Ref = Ref;
exports.RefSet = RefSet;
exports.RefSetCache = RefSetCache;
exports.isEOF = isEOF;
exports.isCmd = isCmd;
exports.isDict = isDict;
exports.isName = isName;
exports.isRef = isRef;
exports.isRefsEqual = isRefsEqual;
exports.isStream = isStream;

/***/ }),
/* 139 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.Parser = exports.Linearization = exports.Lexer = undefined;

var _stream = __w_pdfjs_require__(140);

var _util = __w_pdfjs_require__(2);

var _primitives = __w_pdfjs_require__(138);

var _ccitt_stream = __w_pdfjs_require__(141);

var _jbig2_stream = __w_pdfjs_require__(143);

var _jpeg_stream = __w_pdfjs_require__(146);

var _jpx_stream = __w_pdfjs_require__(148);

var MAX_LENGTH_TO_CACHE = 1000;
var MAX_ADLER32_LENGTH = 5552;
function computeAdler32(bytes) {
  var bytesLength = bytes.length;
  var a = 1,
      b = 0;
  for (var i = 0; i < bytesLength; ++i) {
    a += bytes[i] & 0xFF;
    b += a;
  }
  return b % 65521 << 16 | a % 65521;
}
var Parser = function ParserClosure() {
  function Parser(lexer, allowStreams, xref, recoveryMode) {
    this.lexer = lexer;
    this.allowStreams = allowStreams;
    this.xref = xref;
    this.recoveryMode = recoveryMode || false;
    this.imageCache = Object.create(null);
    this.refill();
  }
  Parser.prototype = {
    refill: function Parser_refill() {
      this.buf1 = this.lexer.getObj();
      this.buf2 = this.lexer.getObj();
    },
    shift: function Parser_shift() {
      if ((0, _primitives.isCmd)(this.buf2, 'ID')) {
        this.buf1 = this.buf2;
        this.buf2 = null;
      } else {
        this.buf1 = this.buf2;
        this.buf2 = this.lexer.getObj();
      }
    },
    tryShift: function Parser_tryShift() {
      try {
        this.shift();
        return true;
      } catch (e) {
        if (e instanceof _util.MissingDataException) {
          throw e;
        }
        return false;
      }
    },
    getObj: function Parser_getObj(cipherTransform) {
      var buf1 = this.buf1;
      this.shift();
      if (buf1 instanceof _primitives.Cmd) {
        switch (buf1.cmd) {
          case 'BI':
            return this.makeInlineImage(cipherTransform);
          case '[':
            var array = [];
            while (!(0, _primitives.isCmd)(this.buf1, ']') && !(0, _primitives.isEOF)(this.buf1)) {
              array.push(this.getObj(cipherTransform));
            }
            if ((0, _primitives.isEOF)(this.buf1)) {
              if (!this.recoveryMode) {
                throw new _util.FormatError('End of file inside array');
              }
              return array;
            }
            this.shift();
            return array;
          case '<<':
            var dict = new _primitives.Dict(this.xref);
            while (!(0, _primitives.isCmd)(this.buf1, '>>') && !(0, _primitives.isEOF)(this.buf1)) {
              if (!(0, _primitives.isName)(this.buf1)) {
                (0, _util.info)('Malformed dictionary: key must be a name object');
                this.shift();
                continue;
              }
              var key = this.buf1.name;
              this.shift();
              if ((0, _primitives.isEOF)(this.buf1)) {
                break;
              }
              dict.set(key, this.getObj(cipherTransform));
            }
            if ((0, _primitives.isEOF)(this.buf1)) {
              if (!this.recoveryMode) {
                throw new _util.FormatError('End of file inside dictionary');
              }
              return dict;
            }
            if ((0, _primitives.isCmd)(this.buf2, 'stream')) {
              return this.allowStreams ? this.makeStream(dict, cipherTransform) : dict;
            }
            this.shift();
            return dict;
          default:
            return buf1;
        }
      }
      if (Number.isInteger(buf1)) {
        var num = buf1;
        if (Number.isInteger(this.buf1) && (0, _primitives.isCmd)(this.buf2, 'R')) {
          var ref = new _primitives.Ref(num, this.buf1);
          this.shift();
          this.shift();
          return ref;
        }
        return num;
      }
      if ((0, _util.isString)(buf1)) {
        var str = buf1;
        if (cipherTransform) {
          str = cipherTransform.decryptString(str);
        }
        return str;
      }
      return buf1;
    },
    findDefaultInlineStreamEnd: function findDefaultInlineStreamEnd(stream) {
      var E = 0x45,
          I = 0x49,
          SPACE = 0x20,
          LF = 0xA,
          CR = 0xD;
      var n = 10,
          NUL = 0x0;
      var startPos = stream.pos,
          state = 0,
          ch = void 0,
          maybeEIPos = void 0;
      while ((ch = stream.getByte()) !== -1) {
        if (state === 0) {
          state = ch === E ? 1 : 0;
        } else if (state === 1) {
          state = ch === I ? 2 : 0;
        } else {
          (0, _util.assert)(state === 2);
          if (ch === SPACE || ch === LF || ch === CR) {
            maybeEIPos = stream.pos;
            var followingBytes = stream.peekBytes(n);
            for (var i = 0, ii = followingBytes.length; i < ii; i++) {
              ch = followingBytes[i];
              if (ch === NUL && followingBytes[i + 1] !== NUL) {
                continue;
              }
              if (ch !== LF && ch !== CR && (ch < SPACE || ch > 0x7F)) {
                state = 0;
                break;
              }
            }
            if (state === 2) {
              break;
            }
          } else {
            state = 0;
          }
        }
      }
      if (ch === -1) {
        (0, _util.warn)('findDefaultInlineStreamEnd: ' + 'Reached the end of the stream without finding a valid EI marker');
        if (maybeEIPos) {
          (0, _util.warn)('... trying to recover by using the last "EI" occurrence.');
          stream.skip(-(stream.pos - maybeEIPos));
        }
      }
      return stream.pos - 4 - startPos;
    },

    findDCTDecodeInlineStreamEnd: function Parser_findDCTDecodeInlineStreamEnd(stream) {
      var startPos = stream.pos,
          foundEOI = false,
          b,
          markerLength,
          length;
      while ((b = stream.getByte()) !== -1) {
        if (b !== 0xFF) {
          continue;
        }
        switch (stream.getByte()) {
          case 0x00:
            break;
          case 0xFF:
            stream.skip(-1);
            break;
          case 0xD9:
            foundEOI = true;
            break;
          case 0xC0:
          case 0xC1:
          case 0xC2:
          case 0xC3:
          case 0xC5:
          case 0xC6:
          case 0xC7:
          case 0xC9:
          case 0xCA:
          case 0xCB:
          case 0xCD:
          case 0xCE:
          case 0xCF:
          case 0xC4:
          case 0xCC:
          case 0xDA:
          case 0xDB:
          case 0xDC:
          case 0xDD:
          case 0xDE:
          case 0xDF:
          case 0xE0:
          case 0xE1:
          case 0xE2:
          case 0xE3:
          case 0xE4:
          case 0xE5:
          case 0xE6:
          case 0xE7:
          case 0xE8:
          case 0xE9:
          case 0xEA:
          case 0xEB:
          case 0xEC:
          case 0xED:
          case 0xEE:
          case 0xEF:
          case 0xFE:
            markerLength = stream.getUint16();
            if (markerLength > 2) {
              stream.skip(markerLength - 2);
            } else {
              stream.skip(-2);
            }
            break;
        }
        if (foundEOI) {
          break;
        }
      }
      length = stream.pos - startPos;
      if (b === -1) {
        (0, _util.warn)('Inline DCTDecode image stream: ' + 'EOI marker not found, searching for /EI/ instead.');
        stream.skip(-length);
        return this.findDefaultInlineStreamEnd(stream);
      }
      this.inlineStreamSkipEI(stream);
      return length;
    },
    findASCII85DecodeInlineStreamEnd: function Parser_findASCII85DecodeInlineStreamEnd(stream) {
      var TILDE = 0x7E,
          GT = 0x3E;
      var startPos = stream.pos,
          ch,
          length;
      while ((ch = stream.getByte()) !== -1) {
        if (ch === TILDE && stream.peekByte() === GT) {
          stream.skip();
          break;
        }
      }
      length = stream.pos - startPos;
      if (ch === -1) {
        (0, _util.warn)('Inline ASCII85Decode image stream: ' + 'EOD marker not found, searching for /EI/ instead.');
        stream.skip(-length);
        return this.findDefaultInlineStreamEnd(stream);
      }
      this.inlineStreamSkipEI(stream);
      return length;
    },
    findASCIIHexDecodeInlineStreamEnd: function Parser_findASCIIHexDecodeInlineStreamEnd(stream) {
      var GT = 0x3E;
      var startPos = stream.pos,
          ch,
          length;
      while ((ch = stream.getByte()) !== -1) {
        if (ch === GT) {
          break;
        }
      }
      length = stream.pos - startPos;
      if (ch === -1) {
        (0, _util.warn)('Inline ASCIIHexDecode image stream: ' + 'EOD marker not found, searching for /EI/ instead.');
        stream.skip(-length);
        return this.findDefaultInlineStreamEnd(stream);
      }
      this.inlineStreamSkipEI(stream);
      return length;
    },
    inlineStreamSkipEI: function Parser_inlineStreamSkipEI(stream) {
      var E = 0x45,
          I = 0x49;
      var state = 0,
          ch;
      while ((ch = stream.getByte()) !== -1) {
        if (state === 0) {
          state = ch === E ? 1 : 0;
        } else if (state === 1) {
          state = ch === I ? 2 : 0;
        } else if (state === 2) {
          break;
        }
      }
    },
    makeInlineImage: function Parser_makeInlineImage(cipherTransform) {
      var lexer = this.lexer;
      var stream = lexer.stream;
      var dict = new _primitives.Dict(this.xref),
          dictLength = void 0;
      while (!(0, _primitives.isCmd)(this.buf1, 'ID') && !(0, _primitives.isEOF)(this.buf1)) {
        if (!(0, _primitives.isName)(this.buf1)) {
          throw new _util.FormatError('Dictionary key must be a name object');
        }
        var key = this.buf1.name;
        this.shift();
        if ((0, _primitives.isEOF)(this.buf1)) {
          break;
        }
        dict.set(key, this.getObj(cipherTransform));
      }
      if (lexer.beginInlineImagePos !== -1) {
        dictLength = stream.pos - lexer.beginInlineImagePos;
      }
      var filter = dict.get('Filter', 'F'),
          filterName;
      if ((0, _primitives.isName)(filter)) {
        filterName = filter.name;
      } else if (Array.isArray(filter)) {
        var filterZero = this.xref.fetchIfRef(filter[0]);
        if ((0, _primitives.isName)(filterZero)) {
          filterName = filterZero.name;
        }
      }
      var startPos = stream.pos,
          length = void 0;
      if (filterName === 'DCTDecode' || filterName === 'DCT') {
        length = this.findDCTDecodeInlineStreamEnd(stream);
      } else if (filterName === 'ASCII85Decode' || filterName === 'A85') {
        length = this.findASCII85DecodeInlineStreamEnd(stream);
      } else if (filterName === 'ASCIIHexDecode' || filterName === 'AHx') {
        length = this.findASCIIHexDecodeInlineStreamEnd(stream);
      } else {
        length = this.findDefaultInlineStreamEnd(stream);
      }
      var imageStream = stream.makeSubStream(startPos, length, dict);
      var cacheKey = void 0;
      if (length < MAX_LENGTH_TO_CACHE && dictLength < MAX_ADLER32_LENGTH) {
        var imageBytes = imageStream.getBytes();
        imageStream.reset();
        var initialStreamPos = stream.pos;
        stream.pos = lexer.beginInlineImagePos;
        var dictBytes = stream.getBytes(dictLength);
        stream.pos = initialStreamPos;
        cacheKey = computeAdler32(imageBytes) + '_' + computeAdler32(dictBytes);
        var cacheEntry = this.imageCache[cacheKey];
        if (cacheEntry !== undefined) {
          this.buf2 = _primitives.Cmd.get('EI');
          this.shift();
          cacheEntry.reset();
          return cacheEntry;
        }
      }
      if (cipherTransform) {
        imageStream = cipherTransform.createStream(imageStream, length);
      }
      imageStream = this.filter(imageStream, dict, length);
      imageStream.dict = dict;
      if (cacheKey !== undefined) {
        imageStream.cacheKey = 'inline_' + length + '_' + cacheKey;
        this.imageCache[cacheKey] = imageStream;
      }
      this.buf2 = _primitives.Cmd.get('EI');
      this.shift();
      return imageStream;
    },
    _findStreamLength: function _findStreamLength(startPos, signature) {
      var stream = this.lexer.stream;

      stream.pos = startPos;
      var SCAN_BLOCK_LENGTH = 2048;
      var signatureLength = signature.length;
      while (stream.pos < stream.end) {
        var scanBytes = stream.peekBytes(SCAN_BLOCK_LENGTH);
        var scanLength = scanBytes.length - signatureLength;
        if (scanLength <= 0) {
          break;
        }
        var pos = 0;
        while (pos < scanLength) {
          var j = 0;
          while (j < signatureLength && scanBytes[pos + j] === signature[j]) {
            j++;
          }
          if (j >= signatureLength) {
            stream.pos += pos;
            return stream.pos - startPos;
          }
          pos++;
        }
        stream.pos += scanLength;
      }
      return -1;
    },

    makeStream: function Parser_makeStream(dict, cipherTransform) {
      var lexer = this.lexer;
      var stream = lexer.stream;
      lexer.skipToNextLine();
      var startPos = stream.pos - 1;
      var length = dict.get('Length');
      if (!Number.isInteger(length)) {
        (0, _util.info)('Bad ' + length + ' attribute in stream');
        length = 0;
      }
      stream.pos = startPos + length;
      lexer.nextChar();
      if (this.tryShift() && (0, _primitives.isCmd)(this.buf2, 'endstream')) {
        this.shift();
      } else {
        var ENDSTREAM_SIGNATURE = new Uint8Array([0x65, 0x6E, 0x64, 0x73, 0x74, 0x72, 0x65, 0x61, 0x6D]);
        var actualLength = this._findStreamLength(startPos, ENDSTREAM_SIGNATURE);
        if (actualLength < 0) {
          var MAX_TRUNCATION = 1;
          for (var i = 1; i <= MAX_TRUNCATION; i++) {
            var end = ENDSTREAM_SIGNATURE.length - i;
            var TRUNCATED_SIGNATURE = ENDSTREAM_SIGNATURE.slice(0, end);
            var maybeLength = this._findStreamLength(startPos, TRUNCATED_SIGNATURE);
            if (maybeLength >= 0) {
              var lastByte = stream.peekBytes(end + 1)[end];
              if (!(0, _util.isSpace)(lastByte)) {
                break;
              }
              (0, _util.info)('Found "' + (0, _util.bytesToString)(TRUNCATED_SIGNATURE) + '" when ' + 'searching for endstream command.');
              actualLength = maybeLength;
              break;
            }
          }
          if (actualLength < 0) {
            throw new _util.FormatError('Missing endstream command.');
          }
        }
        length = actualLength;
        lexer.nextChar();
        this.shift();
        this.shift();
      }
      this.shift();
      stream = stream.makeSubStream(startPos, length, dict);
      if (cipherTransform) {
        stream = cipherTransform.createStream(stream, length);
      }
      stream = this.filter(stream, dict, length);
      stream.dict = dict;
      return stream;
    },
    filter: function Parser_filter(stream, dict, length) {
      var filter = dict.get('Filter', 'F');
      var params = dict.get('DecodeParms', 'DP');
      if ((0, _primitives.isName)(filter)) {
        if (Array.isArray(params)) {
          (0, _util.warn)('/DecodeParms should not contain an Array, ' + 'when /Filter contains a Name.');
        }
        return this.makeFilter(stream, filter.name, length, params);
      }
      var maybeLength = length;
      if (Array.isArray(filter)) {
        var filterArray = filter;
        var paramsArray = params;
        for (var i = 0, ii = filterArray.length; i < ii; ++i) {
          filter = this.xref.fetchIfRef(filterArray[i]);
          if (!(0, _primitives.isName)(filter)) {
            throw new _util.FormatError('Bad filter name: ' + filter);
          }
          params = null;
          if (Array.isArray(paramsArray) && i in paramsArray) {
            params = this.xref.fetchIfRef(paramsArray[i]);
          }
          stream = this.makeFilter(stream, filter.name, maybeLength, params);
          maybeLength = null;
        }
      }
      return stream;
    },
    makeFilter: function Parser_makeFilter(stream, name, maybeLength, params) {
      if (maybeLength === 0) {
        (0, _util.warn)('Empty "' + name + '" stream.');
        return new _stream.NullStream();
      }
      try {
        var xrefStreamStats = this.xref.stats.streamTypes;
        if (name === 'FlateDecode' || name === 'Fl') {
          xrefStreamStats[_util.StreamType.FLATE] = true;
          if (params) {
            return new _stream.PredictorStream(new _stream.FlateStream(stream, maybeLength), maybeLength, params);
          }
          return new _stream.FlateStream(stream, maybeLength);
        }
        if (name === 'LZWDecode' || name === 'LZW') {
          xrefStreamStats[_util.StreamType.LZW] = true;
          var earlyChange = 1;
          if (params) {
            if (params.has('EarlyChange')) {
              earlyChange = params.get('EarlyChange');
            }
            return new _stream.PredictorStream(new _stream.LZWStream(stream, maybeLength, earlyChange), maybeLength, params);
          }
          return new _stream.LZWStream(stream, maybeLength, earlyChange);
        }
        if (name === 'DCTDecode' || name === 'DCT') {
          xrefStreamStats[_util.StreamType.DCT] = true;
          return new _jpeg_stream.JpegStream(stream, maybeLength, stream.dict, params);
        }
        if (name === 'JPXDecode' || name === 'JPX') {
          xrefStreamStats[_util.StreamType.JPX] = true;
          return new _jpx_stream.JpxStream(stream, maybeLength, stream.dict, params);
        }
        if (name === 'ASCII85Decode' || name === 'A85') {
          xrefStreamStats[_util.StreamType.A85] = true;
          return new _stream.Ascii85Stream(stream, maybeLength);
        }
        if (name === 'ASCIIHexDecode' || name === 'AHx') {
          xrefStreamStats[_util.StreamType.AHX] = true;
          return new _stream.AsciiHexStream(stream, maybeLength);
        }
        if (name === 'CCITTFaxDecode' || name === 'CCF') {
          xrefStreamStats[_util.StreamType.CCF] = true;
          return new _ccitt_stream.CCITTFaxStream(stream, maybeLength, params);
        }
        if (name === 'RunLengthDecode' || name === 'RL') {
          xrefStreamStats[_util.StreamType.RL] = true;
          return new _stream.RunLengthStream(stream, maybeLength);
        }
        if (name === 'JBIG2Decode') {
          xrefStreamStats[_util.StreamType.JBIG] = true;
          return new _jbig2_stream.Jbig2Stream(stream, maybeLength, stream.dict, params);
        }
        (0, _util.warn)('filter "' + name + '" not supported yet');
        return stream;
      } catch (ex) {
        if (ex instanceof _util.MissingDataException) {
          throw ex;
        }
        (0, _util.warn)('Invalid stream: \"' + ex + '\"');
        return new _stream.NullStream();
      }
    }
  };
  return Parser;
}();
var Lexer = function LexerClosure() {
  function Lexer(stream, knownCommands) {
    this.stream = stream;
    this.nextChar();
    this.strBuf = [];
    this.knownCommands = knownCommands;
    this.beginInlineImagePos = -1;
  }
  var specialChars = [1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 2, 0, 0, 2, 2, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
  function toHexDigit(ch) {
    if (ch >= 0x30 && ch <= 0x39) {
      return ch & 0x0F;
    }
    if (ch >= 0x41 && ch <= 0x46 || ch >= 0x61 && ch <= 0x66) {
      return (ch & 0x0F) + 9;
    }
    return -1;
  }
  Lexer.prototype = {
    nextChar: function Lexer_nextChar() {
      return this.currentChar = this.stream.getByte();
    },
    peekChar: function Lexer_peekChar() {
      return this.stream.peekByte();
    },
    getNumber: function Lexer_getNumber() {
      var ch = this.currentChar;
      var eNotation = false;
      var divideBy = 0;
      var sign = 0;
      if (ch === 0x2D) {
        sign = -1;
        ch = this.nextChar();
        if (ch === 0x2D) {
          ch = this.nextChar();
        }
      } else if (ch === 0x2B) {
        sign = 1;
        ch = this.nextChar();
      }
      if (ch === 0x0A || ch === 0x0D) {
        do {
          ch = this.nextChar();
        } while (ch === 0x0A || ch === 0x0D);
      }
      if (ch === 0x2E) {
        divideBy = 10;
        ch = this.nextChar();
      }
      if (ch < 0x30 || ch > 0x39) {
        if (divideBy === 10 && sign === 0 && ((0, _util.isSpace)(ch) || ch === -1)) {
          (0, _util.warn)('Lexer.getNumber - treating a single decimal point as zero.');
          return 0;
        }
        throw new _util.FormatError('Invalid number: ' + String.fromCharCode(ch) + ' (charCode ' + ch + ')');
      }
      sign = sign || 1;
      var baseValue = ch - 0x30;
      var powerValue = 0;
      var powerValueSign = 1;
      while ((ch = this.nextChar()) >= 0) {
        if (0x30 <= ch && ch <= 0x39) {
          var currentDigit = ch - 0x30;
          if (eNotation) {
            powerValue = powerValue * 10 + currentDigit;
          } else {
            if (divideBy !== 0) {
              divideBy *= 10;
            }
            baseValue = baseValue * 10 + currentDigit;
          }
        } else if (ch === 0x2E) {
          if (divideBy === 0) {
            divideBy = 1;
          } else {
            break;
          }
        } else if (ch === 0x2D) {
          (0, _util.warn)('Badly formatted number');
        } else if (ch === 0x45 || ch === 0x65) {
          ch = this.peekChar();
          if (ch === 0x2B || ch === 0x2D) {
            powerValueSign = ch === 0x2D ? -1 : 1;
            this.nextChar();
          } else if (ch < 0x30 || ch > 0x39) {
            break;
          }
          eNotation = true;
        } else {
          break;
        }
      }
      if (divideBy !== 0) {
        baseValue /= divideBy;
      }
      if (eNotation) {
        baseValue *= Math.pow(10, powerValueSign * powerValue);
      }
      return sign * baseValue;
    },
    getString: function Lexer_getString() {
      var numParen = 1;
      var done = false;
      var strBuf = this.strBuf;
      strBuf.length = 0;
      var ch = this.nextChar();
      while (true) {
        var charBuffered = false;
        switch (ch | 0) {
          case -1:
            (0, _util.warn)('Unterminated string');
            done = true;
            break;
          case 0x28:
            ++numParen;
            strBuf.push('(');
            break;
          case 0x29:
            if (--numParen === 0) {
              this.nextChar();
              done = true;
            } else {
              strBuf.push(')');
            }
            break;
          case 0x5C:
            ch = this.nextChar();
            switch (ch) {
              case -1:
                (0, _util.warn)('Unterminated string');
                done = true;
                break;
              case 0x6E:
                strBuf.push('\n');
                break;
              case 0x72:
                strBuf.push('\r');
                break;
              case 0x74:
                strBuf.push('\t');
                break;
              case 0x62:
                strBuf.push('\b');
                break;
              case 0x66:
                strBuf.push('\f');
                break;
              case 0x5C:
              case 0x28:
              case 0x29:
                strBuf.push(String.fromCharCode(ch));
                break;
              case 0x30:
              case 0x31:
              case 0x32:
              case 0x33:
              case 0x34:
              case 0x35:
              case 0x36:
              case 0x37:
                var x = ch & 0x0F;
                ch = this.nextChar();
                charBuffered = true;
                if (ch >= 0x30 && ch <= 0x37) {
                  x = (x << 3) + (ch & 0x0F);
                  ch = this.nextChar();
                  if (ch >= 0x30 && ch <= 0x37) {
                    charBuffered = false;
                    x = (x << 3) + (ch & 0x0F);
                  }
                }
                strBuf.push(String.fromCharCode(x));
                break;
              case 0x0D:
                if (this.peekChar() === 0x0A) {
                  this.nextChar();
                }
                break;
              case 0x0A: