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1x | /* Copyright 2017 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.CMapFactory = exports.IdentityCMap = exports.CMap = undefined;
var _util = require('../shared/util');
var _primitives = require('./primitives');
var _parser = require('./parser');
var _stream = require('./stream');
var BUILT_IN_CMAPS = ['Adobe-GB1-UCS2', 'Adobe-CNS1-UCS2', 'Adobe-Japan1-UCS2', 'Adobe-Korea1-UCS2', '78-EUC-H', '78-EUC-V', '78-H', '78-RKSJ-H', '78-RKSJ-V', '78-V', '78ms-RKSJ-H', '78ms-RKSJ-V', '83pv-RKSJ-H', '90ms-RKSJ-H', '90ms-RKSJ-V', '90msp-RKSJ-H', '90msp-RKSJ-V', '90pv-RKSJ-H', '90pv-RKSJ-V', 'Add-H', 'Add-RKSJ-H', 'Add-RKSJ-V', 'Add-V', 'Adobe-CNS1-0', 'Adobe-CNS1-1', 'Adobe-CNS1-2', 'Adobe-CNS1-3', 'Adobe-CNS1-4', 'Adobe-CNS1-5', 'Adobe-CNS1-6', 'Adobe-GB1-0', 'Adobe-GB1-1', 'Adobe-GB1-2', 'Adobe-GB1-3', 'Adobe-GB1-4', 'Adobe-GB1-5', 'Adobe-Japan1-0', 'Adobe-Japan1-1', 'Adobe-Japan1-2', 'Adobe-Japan1-3', 'Adobe-Japan1-4', 'Adobe-Japan1-5', 'Adobe-Japan1-6', 'Adobe-Korea1-0', 'Adobe-Korea1-1', 'Adobe-Korea1-2', 'B5-H', 'B5-V', 'B5pc-H', 'B5pc-V', 'CNS-EUC-H', 'CNS-EUC-V', 'CNS1-H', 'CNS1-V', 'CNS2-H', 'CNS2-V', 'ETHK-B5-H', 'ETHK-B5-V', 'ETen-B5-H', 'ETen-B5-V', 'ETenms-B5-H', 'ETenms-B5-V', 'EUC-H', 'EUC-V', 'Ext-H', 'Ext-RKSJ-H', 'Ext-RKSJ-V', 'Ext-V', 'GB-EUC-H', 'GB-EUC-V', 'GB-H', 'GB-V', 'GBK-EUC-H', 'GBK-EUC-V', 'GBK2K-H', 'GBK2K-V', 'GBKp-EUC-H', 'GBKp-EUC-V', 'GBT-EUC-H', 'GBT-EUC-V', 'GBT-H', 'GBT-V', 'GBTpc-EUC-H', 'GBTpc-EUC-V', 'GBpc-EUC-H', 'GBpc-EUC-V', 'H', 'HKdla-B5-H', 'HKdla-B5-V', 'HKdlb-B5-H', 'HKdlb-B5-V', 'HKgccs-B5-H', 'HKgccs-B5-V', 'HKm314-B5-H', 'HKm314-B5-V', 'HKm471-B5-H', 'HKm471-B5-V', 'HKscs-B5-H', 'HKscs-B5-V', 'Hankaku', 'Hiragana', 'KSC-EUC-H', 'KSC-EUC-V', 'KSC-H', 'KSC-Johab-H', 'KSC-Johab-V', 'KSC-V', 'KSCms-UHC-H', 'KSCms-UHC-HW-H', 'KSCms-UHC-HW-V', 'KSCms-UHC-V', 'KSCpc-EUC-H', 'KSCpc-EUC-V', 'Katakana', 'NWP-H', 'NWP-V', 'RKSJ-H', 'RKSJ-V', 'Roman', 'UniCNS-UCS2-H', 'UniCNS-UCS2-V', 'UniCNS-UTF16-H', 'UniCNS-UTF16-V', 'UniCNS-UTF32-H', 'UniCNS-UTF32-V', 'UniCNS-UTF8-H', 'UniCNS-UTF8-V', 'UniGB-UCS2-H', 'UniGB-UCS2-V', 'UniGB-UTF16-H', 'UniGB-UTF16-V', 'UniGB-UTF32-H', 'UniGB-UTF32-V', 'UniGB-UTF8-H', 'UniGB-UTF8-V', 'UniJIS-UCS2-H', 'UniJIS-UCS2-HW-H', 'UniJIS-UCS2-HW-V', 'UniJIS-UCS2-V', 'UniJIS-UTF16-H', 'UniJIS-UTF16-V', 'UniJIS-UTF32-H', 'UniJIS-UTF32-V', 'UniJIS-UTF8-H', 'UniJIS-UTF8-V', 'UniJIS2004-UTF16-H', 'UniJIS2004-UTF16-V', 'UniJIS2004-UTF32-H', 'UniJIS2004-UTF32-V', 'UniJIS2004-UTF8-H', 'UniJIS2004-UTF8-V', 'UniJISPro-UCS2-HW-V', 'UniJISPro-UCS2-V', 'UniJISPro-UTF8-V', 'UniJISX0213-UTF32-H', 'UniJISX0213-UTF32-V', 'UniJISX02132004-UTF32-H', 'UniJISX02132004-UTF32-V', 'UniKS-UCS2-H', 'UniKS-UCS2-V', 'UniKS-UTF16-H', 'UniKS-UTF16-V', 'UniKS-UTF32-H', 'UniKS-UTF32-V', 'UniKS-UTF8-H', 'UniKS-UTF8-V', 'V', 'WP-Symbol'];
var CMap = function CMapClosure() {
function CMap(builtInCMap) {
this.codespaceRanges = [[], [], [], []];
this.numCodespaceRanges = 0;
this._map = [];
this.name = '';
this.vertical = false;
this.useCMap = null;
this.builtInCMap = builtInCMap;
}
CMap.prototype = {
addCodespaceRange: function addCodespaceRange(n, low, high) {
this.codespaceRanges[n - 1].push(low, high);
this.numCodespaceRanges++;
},
mapCidRange: function mapCidRange(low, high, dstLow) {
while (low <= high) {
this._map[low++] = dstLow++;
}
},
mapBfRange: function mapBfRange(low, high, dstLow) {
var lastByte = dstLow.length - 1;
while (low <= high) {
this._map[low++] = dstLow;
dstLow = dstLow.substr(0, lastByte) + String.fromCharCode(dstLow.charCodeAt(lastByte) + 1);
}
},
mapBfRangeToArray: function mapBfRangeToArray(low, high, array) {
var i = 0,
ii = array.length;
while (low <= high && i < ii) {
this._map[low] = array[i++];
++low;
}
},
mapOne: function mapOne(src, dst) {
this._map[src] = dst;
},
lookup: function lookup(code) {
return this._map[code];
},
contains: function contains(code) {
return this._map[code] !== undefined;
},
forEach: function forEach(callback) {
var map = this._map;
var length = map.length;
if (length <= 0x10000) {
for (var i = 0; i < length; i++) {
if (map[i] !== undefined) {
callback(i, map[i]);
}
}
} else {
for (var _i in map) {
callback(_i, map[_i]);
}
}
},
charCodeOf: function charCodeOf(value) {
var map = this._map;
if (map.length <= 0x10000) {
return map.indexOf(value);
}
for (var charCode in map) {
if (map[charCode] === value) {
return charCode | 0;
}
}
return -1;
},
getMap: function getMap() {
return this._map;
},
readCharCode: function readCharCode(str, offset, out) {
var c = 0;
var codespaceRanges = this.codespaceRanges;
var codespaceRangesLen = this.codespaceRanges.length;
for (var n = 0; n < codespaceRangesLen; n++) {
c = (c << 8 | str.charCodeAt(offset + n)) >>> 0;
var codespaceRange = codespaceRanges[n];
for (var k = 0, kk = codespaceRange.length; k < kk;) {
var low = codespaceRange[k++];
var high = codespaceRange[k++];
if (c >= low && c <= high) {
out.charcode = c;
out.length = n + 1;
return;
}
}
}
out.charcode = 0;
out.length = 1;
},
get length() {
return this._map.length;
},
get isIdentityCMap() {
if (!(this.name === 'Identity-H' || this.name === 'Identity-V')) {
return false;
}
if (this._map.length !== 0x10000) {
return false;
}
for (var i = 0; i < 0x10000; i++) {
if (this._map[i] !== i) {
return false;
}
}
return true;
}
};
return CMap;
}();
var IdentityCMap = function IdentityCMapClosure() {
function IdentityCMap(vertical, n) {
CMap.call(this);
this.vertical = vertical;
this.addCodespaceRange(n, 0, 0xffff);
}
_util.Util.inherit(IdentityCMap, CMap, {});
IdentityCMap.prototype = {
addCodespaceRange: CMap.prototype.addCodespaceRange,
mapCidRange: function mapCidRange(low, high, dstLow) {
throw new Error('should not call mapCidRange');
},
mapBfRange: function mapBfRange(low, high, dstLow) {
throw new Error('should not call mapBfRange');
},
mapBfRangeToArray: function mapBfRangeToArray(low, high, array) {
throw new Error('should not call mapBfRangeToArray');
},
mapOne: function mapOne(src, dst) {
throw new Error('should not call mapCidOne');
},
lookup: function lookup(code) {
return Number.isInteger(code) && code <= 0xffff ? code : undefined;
},
contains: function contains(code) {
return Number.isInteger(code) && code <= 0xffff;
},
forEach: function forEach(callback) {
for (var i = 0; i <= 0xffff; i++) {
callback(i, i);
}
},
charCodeOf: function charCodeOf(value) {
return Number.isInteger(value) && value <= 0xffff ? value : -1;
},
getMap: function getMap() {
var map = new Array(0x10000);
for (var i = 0; i <= 0xffff; i++) {
map[i] = i;
}
return map;
},
readCharCode: CMap.prototype.readCharCode,
get length() {
return 0x10000;
},
get isIdentityCMap() {
throw new Error('should not access .isIdentityCMap');
}
};
return IdentityCMap;
}();
var BinaryCMapReader = function BinaryCMapReaderClosure() {
function hexToInt(a, size) {
var n = 0;
for (var i = 0; i <= size; i++) {
n = n << 8 | a[i];
}
return n >>> 0;
}
function hexToStr(a, size) {
if (size === 1) {
return String.fromCharCode(a[0], a[1]);
}
if (size === 3) {
return String.fromCharCode(a[0], a[1], a[2], a[3]);
}
return String.fromCharCode.apply(null, a.subarray(0, size + 1));
}
function addHex(a, b, size) {
var c = 0;
for (var i = size; i >= 0; i--) {
c += a[i] + b[i];
a[i] = c & 255;
c >>= 8;
}
}
function incHex(a, size) {
var c = 1;
for (var i = size; i >= 0 && c > 0; i--) {
c += a[i];
a[i] = c & 255;
c >>= 8;
}
}
var MAX_NUM_SIZE = 16;
var MAX_ENCODED_NUM_SIZE = 19;
function BinaryCMapStream(data) {
this.buffer = data;
this.pos = 0;
this.end = data.length;
this.tmpBuf = new Uint8Array(MAX_ENCODED_NUM_SIZE);
}
BinaryCMapStream.prototype = {
readByte: function readByte() {
if (this.pos >= this.end) {
return -1;
}
return this.buffer[this.pos++];
},
readNumber: function readNumber() {
var n = 0;
var last;
do {
var b = this.readByte();
if (b < 0) {
throw new _util.FormatError('unexpected EOF in bcmap');
}
last = !(b & 0x80);
n = n << 7 | b & 0x7F;
} while (!last);
return n;
},
readSigned: function readSigned() {
var n = this.readNumber();
return n & 1 ? ~(n >>> 1) : n >>> 1;
},
readHex: function readHex(num, size) {
num.set(this.buffer.subarray(this.pos, this.pos + size + 1));
this.pos += size + 1;
},
readHexNumber: function readHexNumber(num, size) {
var last;
var stack = this.tmpBuf,
sp = 0;
do {
var b = this.readByte();
if (b < 0) {
throw new _util.FormatError('unexpected EOF in bcmap');
}
last = !(b & 0x80);
stack[sp++] = b & 0x7F;
} while (!last);
var i = size,
buffer = 0,
bufferSize = 0;
while (i >= 0) {
while (bufferSize < 8 && stack.length > 0) {
buffer = stack[--sp] << bufferSize | buffer;
bufferSize += 7;
}
num[i] = buffer & 255;
i--;
buffer >>= 8;
bufferSize -= 8;
}
},
readHexSigned: function readHexSigned(num, size) {
this.readHexNumber(num, size);
var sign = num[size] & 1 ? 255 : 0;
var c = 0;
for (var i = 0; i <= size; i++) {
c = (c & 1) << 8 | num[i];
num[i] = c >> 1 ^ sign;
}
},
readString: function readString() {
var len = this.readNumber();
var s = '';
for (var i = 0; i < len; i++) {
s += String.fromCharCode(this.readNumber());
}
return s;
}
};
function processBinaryCMap(data, cMap, extend) {
return new Promise(function (resolve, reject) {
var stream = new BinaryCMapStream(data);
var header = stream.readByte();
cMap.vertical = !!(header & 1);
var useCMap = null;
var start = new Uint8Array(MAX_NUM_SIZE);
var end = new Uint8Array(MAX_NUM_SIZE);
var char = new Uint8Array(MAX_NUM_SIZE);
var charCode = new Uint8Array(MAX_NUM_SIZE);
var tmp = new Uint8Array(MAX_NUM_SIZE);
var code;
var b;
while ((b = stream.readByte()) >= 0) {
var type = b >> 5;
if (type === 7) {
switch (b & 0x1F) {
case 0:
stream.readString();
break;
case 1:
useCMap = stream.readString();
break;
}
continue;
}
var sequence = !!(b & 0x10);
var dataSize = b & 15;
if (dataSize + 1 > MAX_NUM_SIZE) {
throw new Error('processBinaryCMap: Invalid dataSize.');
}
var ucs2DataSize = 1;
var subitemsCount = stream.readNumber();
var i;
switch (type) {
case 0:
stream.readHex(start, dataSize);
stream.readHexNumber(end, dataSize);
addHex(end, start, dataSize);
cMap.addCodespaceRange(dataSize + 1, hexToInt(start, dataSize), hexToInt(end, dataSize));
for (i = 1; i < subitemsCount; i++) {
incHex(end, dataSize);
stream.readHexNumber(start, dataSize);
addHex(start, end, dataSize);
stream.readHexNumber(end, dataSize);
addHex(end, start, dataSize);
cMap.addCodespaceRange(dataSize + 1, hexToInt(start, dataSize), hexToInt(end, dataSize));
}
break;
case 1:
stream.readHex(start, dataSize);
stream.readHexNumber(end, dataSize);
addHex(end, start, dataSize);
stream.readNumber();
for (i = 1; i < subitemsCount; i++) {
incHex(end, dataSize);
stream.readHexNumber(start, dataSize);
addHex(start, end, dataSize);
stream.readHexNumber(end, dataSize);
addHex(end, start, dataSize);
stream.readNumber();
}
break;
case 2:
stream.readHex(char, dataSize);
code = stream.readNumber();
cMap.mapOne(hexToInt(char, dataSize), code);
for (i = 1; i < subitemsCount; i++) {
incHex(char, dataSize);
if (!sequence) {
stream.readHexNumber(tmp, dataSize);
addHex(char, tmp, dataSize);
}
code = stream.readSigned() + (code + 1);
cMap.mapOne(hexToInt(char, dataSize), code);
}
break;
case 3:
stream.readHex(start, dataSize);
stream.readHexNumber(end, dataSize);
addHex(end, start, dataSize);
code = stream.readNumber();
cMap.mapCidRange(hexToInt(start, dataSize), hexToInt(end, dataSize), code);
for (i = 1; i < subitemsCount; i++) {
incHex(end, dataSize);
if (!sequence) {
stream.readHexNumber(start, dataSize);
addHex(start, end, dataSize);
} else {
start.set(end);
}
stream.readHexNumber(end, dataSize);
addHex(end, start, dataSize);
code = stream.readNumber();
cMap.mapCidRange(hexToInt(start, dataSize), hexToInt(end, dataSize), code);
}
break;
case 4:
stream.readHex(char, ucs2DataSize);
stream.readHex(charCode, dataSize);
cMap.mapOne(hexToInt(char, ucs2DataSize), hexToStr(charCode, dataSize));
for (i = 1; i < subitemsCount; i++) {
incHex(char, ucs2DataSize);
if (!sequence) {
stream.readHexNumber(tmp, ucs2DataSize);
addHex(char, tmp, ucs2DataSize);
}
incHex(charCode, dataSize);
stream.readHexSigned(tmp, dataSize);
addHex(charCode, tmp, dataSize);
cMap.mapOne(hexToInt(char, ucs2DataSize), hexToStr(charCode, dataSize));
}
break;
case 5:
stream.readHex(start, ucs2DataSize);
stream.readHexNumber(end, ucs2DataSize);
addHex(end, start, ucs2DataSize);
stream.readHex(charCode, dataSize);
cMap.mapBfRange(hexToInt(start, ucs2DataSize), hexToInt(end, ucs2DataSize), hexToStr(charCode, dataSize));
for (i = 1; i < subitemsCount; i++) {
incHex(end, ucs2DataSize);
if (!sequence) {
stream.readHexNumber(start, ucs2DataSize);
addHex(start, end, ucs2DataSize);
} else {
start.set(end);
}
stream.readHexNumber(end, ucs2DataSize);
addHex(end, start, ucs2DataSize);
stream.readHex(charCode, dataSize);
cMap.mapBfRange(hexToInt(start, ucs2DataSize), hexToInt(end, ucs2DataSize), hexToStr(charCode, dataSize));
}
break;
default:
reject(new Error('processBinaryCMap: Unknown type: ' + type));
return;
}
}
if (useCMap) {
resolve(extend(useCMap));
return;
}
resolve(cMap);
});
}
function BinaryCMapReader() {}
BinaryCMapReader.prototype = { process: processBinaryCMap };
return BinaryCMapReader;
}();
var CMapFactory = function CMapFactoryClosure() {
function strToInt(str) {
var a = 0;
for (var i = 0; i < str.length; i++) {
a = a << 8 | str.charCodeAt(i);
}
return a >>> 0;
}
function expectString(obj) {
if (!(0, _util.isString)(obj)) {
throw new _util.FormatError('Malformed CMap: expected string.');
}
}
function expectInt(obj) {
if (!Number.isInteger(obj)) {
throw new _util.FormatError('Malformed CMap: expected int.');
}
}
function parseBfChar(cMap, lexer) {
while (true) {
var obj = lexer.getObj();
if ((0, _primitives.isEOF)(obj)) {
break;
}
if ((0, _primitives.isCmd)(obj, 'endbfchar')) {
return;
}
expectString(obj);
var src = strToInt(obj);
obj = lexer.getObj();
expectString(obj);
var dst = obj;
cMap.mapOne(src, dst);
}
}
function parseBfRange(cMap, lexer) {
while (true) {
var obj = lexer.getObj();
if ((0, _primitives.isEOF)(obj)) {
break;
}
if ((0, _primitives.isCmd)(obj, 'endbfrange')) {
return;
}
expectString(obj);
var low = strToInt(obj);
obj = lexer.getObj();
expectString(obj);
var high = strToInt(obj);
obj = lexer.getObj();
if (Number.isInteger(obj) || (0, _util.isString)(obj)) {
var dstLow = Number.isInteger(obj) ? String.fromCharCode(obj) : obj;
cMap.mapBfRange(low, high, dstLow);
} else if ((0, _primitives.isCmd)(obj, '[')) {
obj = lexer.getObj();
var array = [];
while (!(0, _primitives.isCmd)(obj, ']') && !(0, _primitives.isEOF)(obj)) {
array.push(obj);
obj = lexer.getObj();
}
cMap.mapBfRangeToArray(low, high, array);
} else {
break;
}
}
throw new _util.FormatError('Invalid bf range.');
}
function parseCidChar(cMap, lexer) {
while (true) {
var obj = lexer.getObj();
if ((0, _primitives.isEOF)(obj)) {
break;
}
if ((0, _primitives.isCmd)(obj, 'endcidchar')) {
return;
}
expectString(obj);
var src = strToInt(obj);
obj = lexer.getObj();
expectInt(obj);
var dst = obj;
cMap.mapOne(src, dst);
}
}
function parseCidRange(cMap, lexer) {
while (true) {
var obj = lexer.getObj();
if ((0, _primitives.isEOF)(obj)) {
break;
}
if ((0, _primitives.isCmd)(obj, 'endcidrange')) {
return;
}
expectString(obj);
var low = strToInt(obj);
obj = lexer.getObj();
expectString(obj);
var high = strToInt(obj);
obj = lexer.getObj();
expectInt(obj);
var dstLow = obj;
cMap.mapCidRange(low, high, dstLow);
}
}
function parseCodespaceRange(cMap, lexer) {
while (true) {
var obj = lexer.getObj();
if ((0, _primitives.isEOF)(obj)) {
break;
}
if ((0, _primitives.isCmd)(obj, 'endcodespacerange')) {
return;
}
if (!(0, _util.isString)(obj)) {
break;
}
var low = strToInt(obj);
obj = lexer.getObj();
if (!(0, _util.isString)(obj)) {
break;
}
var high = strToInt(obj);
cMap.addCodespaceRange(obj.length, low, high);
}
throw new _util.FormatError('Invalid codespace range.');
}
function parseWMode(cMap, lexer) {
var obj = lexer.getObj();
if (Number.isInteger(obj)) {
cMap.vertical = !!obj;
}
}
function parseCMapName(cMap, lexer) {
var obj = lexer.getObj();
if ((0, _primitives.isName)(obj) && (0, _util.isString)(obj.name)) {
cMap.name = obj.name;
}
}
function parseCMap(cMap, lexer, fetchBuiltInCMap, useCMap) {
var previous;
var embededUseCMap;
objLoop: while (true) {
try {
var obj = lexer.getObj();
if ((0, _primitives.isEOF)(obj)) {
break;
} else if ((0, _primitives.isName)(obj)) {
if (obj.name === 'WMode') {
parseWMode(cMap, lexer);
} else if (obj.name === 'CMapName') {
parseCMapName(cMap, lexer);
}
previous = obj;
} else if ((0, _primitives.isCmd)(obj)) {
switch (obj.cmd) {
case 'endcmap':
break objLoop;
case 'usecmap':
if ((0, _primitives.isName)(previous)) {
embededUseCMap = previous.name;
}
break;
case 'begincodespacerange':
parseCodespaceRange(cMap, lexer);
break;
case 'beginbfchar':
parseBfChar(cMap, lexer);
break;
case 'begincidchar':
parseCidChar(cMap, lexer);
break;
case 'beginbfrange':
parseBfRange(cMap, lexer);
break;
case 'begincidrange':
parseCidRange(cMap, lexer);
break;
}
}
} catch (ex) {
if (ex instanceof _util.MissingDataException) {
throw ex;
}
(0, _util.warn)('Invalid cMap data: ' + ex);
continue;
}
}
if (!useCMap && embededUseCMap) {
useCMap = embededUseCMap;
}
if (useCMap) {
return extendCMap(cMap, fetchBuiltInCMap, useCMap);
}
return Promise.resolve(cMap);
}
function extendCMap(cMap, fetchBuiltInCMap, useCMap) {
return createBuiltInCMap(useCMap, fetchBuiltInCMap).then(function (newCMap) {
cMap.useCMap = newCMap;
if (cMap.numCodespaceRanges === 0) {
var useCodespaceRanges = cMap.useCMap.codespaceRanges;
for (var i = 0; i < useCodespaceRanges.length; i++) {
cMap.codespaceRanges[i] = useCodespaceRanges[i].slice();
}
cMap.numCodespaceRanges = cMap.useCMap.numCodespaceRanges;
}
cMap.useCMap.forEach(function (key, value) {
if (!cMap.contains(key)) {
cMap.mapOne(key, cMap.useCMap.lookup(key));
}
});
return cMap;
});
}
function createBuiltInCMap(name, fetchBuiltInCMap) {
if (name === 'Identity-H') {
return Promise.resolve(new IdentityCMap(false, 2));
} else if (name === 'Identity-V') {
return Promise.resolve(new IdentityCMap(true, 2));
}
if (BUILT_IN_CMAPS.indexOf(name) === -1) {
return Promise.reject(new Error('Unknown CMap name: ' + name));
}
if (!fetchBuiltInCMap) {
return Promise.reject(new Error('Built-in CMap parameters are not provided.'));
}
return fetchBuiltInCMap(name).then(function (data) {
var cMapData = data.cMapData,
compressionType = data.compressionType;
var cMap = new CMap(true);
if (compressionType === _util.CMapCompressionType.BINARY) {
return new BinaryCMapReader().process(cMapData, cMap, function (useCMap) {
return extendCMap(cMap, fetchBuiltInCMap, useCMap);
});
}
if (compressionType === _util.CMapCompressionType.NONE) {
var lexer = new _parser.Lexer(new _stream.Stream(cMapData));
return parseCMap(cMap, lexer, fetchBuiltInCMap, null);
}
return Promise.reject(new Error('TODO: Only BINARY/NONE CMap compression is currently supported.'));
});
}
return {
create: function create(params) {
var encoding = params.encoding;
var fetchBuiltInCMap = params.fetchBuiltInCMap;
var useCMap = params.useCMap;
if ((0, _primitives.isName)(encoding)) {
return createBuiltInCMap(encoding.name, fetchBuiltInCMap);
} else if ((0, _primitives.isStream)(encoding)) {
var cMap = new CMap();
var lexer = new _parser.Lexer(encoding);
return parseCMap(cMap, lexer, fetchBuiltInCMap, useCMap).then(function (parsedCMap) {
if (parsedCMap.isIdentityCMap) {
return createBuiltInCMap(parsedCMap.name, fetchBuiltInCMap);
}
return parsedCMap;
});
}
return Promise.reject(new Error('Encoding required.'));
}
};
}();
exports.CMap = CMap;
exports.IdentityCMap = IdentityCMap;
exports.CMapFactory = CMapFactory; |