akira
/
pdfjs-dist
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
Browse Source

Merge pull request #3674 from brendandahl/cmap-squash 

Read multi-byte character codes based on codespace ranges.
Yury Delendik 12 years ago
parent
7f49dba87c f32e65b19f
commit
1c7f1cee00
9 changed files with 592 additions and 124 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 3
      make.js
  2. 460
      src/core/cmap.js
  3. 128
      src/core/evaluator.js
  4. 29
      src/core/fonts.js
  5. 1
      src/worker_loader.js
  6. BIN
      test/pdfs/bug898853.pdf
  7. 7
      test/test_manifest.json
  8. 86
      test/unit/cmap_spec.js
  9. 2
      test/unit/unit_test.html

3
make.js
Unescape View File

@ -306,7 +306,8 @@ target.bundle = function(args) { @@ -306,7 +306,8 @@ target.bundle = function(args) {
'core/worker.js',
'core/jpx.js',
'core/jbig2.js',
'core/bidi.js'
'core/bidi.js',
'core/cmap.js'
];
var EXT_SRC_FILES = [

460
src/core/cmap.js
Unescape View File

@ -0,0 +1,460 @@ @@ -0,0 +1,460 @@
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
/* Copyright 2012 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.
*/
/* globals Util, isString, isInt, warn, error, isCmd, isEOF, isName, Lexer,
isStream */
'use strict';
var CMAP_CODESPACES = {
'Adobe-CNS1-0': [[], [0, 14335]],
'Adobe-CNS1-1': [[], [0, 17407]],
'Adobe-CNS1-2': [[], [0, 17663]],
'Adobe-CNS1-3': [[], [0, 18943]],
'Adobe-CNS1-4': [[], [0, 19199]],
'Adobe-CNS1-5': [[], [0, 19199]],
'Adobe-CNS1-6': [[], [0, 19199]],
'Adobe-CNS1-UCS2': [[], [0, 65535]],
'B5-H': [[0, 128], [41280, 65278]],
'B5-V': [[0, 128], [41280, 65278]],
'B5pc-H': [[0, 128, 253, 255], [41280, 64766]],
'B5pc-V': [[0, 128, 253, 255], [41280, 64766]],
'CNS-EUC-H': [[0, 128], [41377, 65278], [],
[2392957345, 2392981246, 2393022881, 2393046782, 2393088417, 2393112318]],
'CNS-EUC-V': [[0, 128], [41377, 65278], [],
[2392957345, 2392981246, 2393022881, 2393046782, 2393088417, 2393112318]],
'CNS1-H': [[], [8481, 32382]],
'CNS1-V': [[], [8481, 32382]],
'CNS2-H': [[], [8481, 32382]],
'CNS2-V': [[], [8481, 32382]],
'ETen-B5-H': [[0, 128], [41280, 65278]],
'ETen-B5-V': [[0, 128], [41280, 65278]],
'ETenms-B5-H': [[0, 128], [41280, 65278]],
'ETenms-B5-V': [[0, 128], [41280, 65278]],
'ETHK-B5-H': [[0, 128], [34624, 65278]],
'ETHK-B5-V': [[0, 128], [34624, 65278]],
'HKdla-B5-H': [[0, 128], [41280, 65278]],
'HKdla-B5-V': [[0, 128], [41280, 65278]],
'HKdlb-B5-H': [[0, 128], [36416, 65278]],
'HKdlb-B5-V': [[0, 128], [36416, 65278]],
'HKgccs-B5-H': [[0, 128], [35392, 65278]],
'HKgccs-B5-V': [[0, 128], [35392, 65278]],
'HKm314-B5-H': [[0, 128], [41280, 65278]],
'HKm314-B5-V': [[0, 128], [41280, 65278]],
'HKm471-B5-H': [[0, 128], [41280, 65278]],
'HKm471-B5-V': [[0, 128], [41280, 65278]],
'HKscs-B5-H': [[0, 128], [34624, 65278]],
'HKscs-B5-V': [[0, 128], [34624, 65278]],
'UniCNS-UCS2-H': [[], [0, 55295, 57344, 65535]],
'UniCNS-UCS2-V': [[], [0, 55295, 57344, 65535]],
'UniCNS-UTF16-H': [[], [0, 55295, 57344, 65535], [],
[3623934976, 3690979327]],
'UniCNS-UTF16-V': [[], [0, 55295, 57344, 65535], [],
[3623934976, 3690979327]],
'Adobe-GB1-0': [[], [0, 7935]],
'Adobe-GB1-1': [[], [0, 9983]],
'Adobe-GB1-2': [[], [0, 22271]],
'Adobe-GB1-3': [[], [0, 22527]],
'Adobe-GB1-4': [[], [0, 29183]],
'Adobe-GB1-5': [[], [0, 30463]],
'Adobe-GB1-UCS2': [[], [0, 65535]],
'GB-EUC-H': [[0, 128], [41377, 65278]],
'GB-EUC-V': [[0, 128], [41377, 65278]],
'GB-H': [[], [8481, 32382]],
'GB-V': [[], [8481, 32382]],
'GBK-EUC-H': [[0, 128], [33088, 65278]],
'GBK-EUC-V': [[0, 128], [33088, 65278]],
'GBK2K-H': [[0, 127], [33088, 65278], [], [2167439664, 4265213497]],
'GBK2K-V': [[0, 127], [33088, 65278], [], [2167439664, 4265213497]],
'GBKp-EUC-H': [[0, 128], [33088, 65278]],
'GBKp-EUC-V': [[0, 128], [33088, 65278]],
'GBpc-EUC-H': [[0, 128, 253, 255], [41377, 64766]],
'GBpc-EUC-V': [[0, 128, 253, 255], [41377, 64766]],
'GBT-EUC-H': [[0, 128], [41377, 65278]],
'GBT-EUC-V': [[0, 128], [41377, 65278]],
'GBT-H': [[], [8481, 32382]],
'GBT-V': [[], [8481, 32382]],
'GBTpc-EUC-H': [[0, 128, 253, 255], [41377, 64766]],
'GBTpc-EUC-V': [[0, 128, 253, 255], [41377, 64766]],
'UniGB-UCS2-H': [[], [0, 55295, 57344, 65535]],
'UniGB-UCS2-V': [[], [0, 55295, 57344, 65535]],
'UniGB-UTF16-H': [[], [0, 55295, 57344, 65535], [], [3623934976, 3690979327]],
'UniGB-UTF16-V': [[], [0, 55295, 57344, 65535], [], [3623934976, 3690979327]],
'78-EUC-H': [[0, 128], [36512, 36575, 41377, 65278]],
'78-EUC-V': [[0, 128], [36512, 36575, 41377, 65278]],
'78-H': [[], [8481, 32382]],
'78-RKSJ-H': [[0, 128, 160, 223], [33088, 40956, 57408, 64764]],
'78-RKSJ-V': [[0, 128, 160, 223], [33088, 40956, 57408, 64764]],
'78-V': [[], [8481, 32382]],
'78ms-RKSJ-H': [[0, 128, 160, 223], [33088, 40956, 57408, 64764]],
'78ms-RKSJ-V': [[0, 128, 160, 223], [33088, 40956, 57408, 64764]],
'83pv-RKSJ-H': [[0, 128, 160, 223, 253, 255], [33088, 40956, 57408, 64764]],
'90ms-RKSJ-H': [[0, 128, 160, 223], [33088, 40956, 57408, 64764]],
'90ms-RKSJ-V': [[0, 128, 160, 223], [33088, 40956, 57408, 64764]],
'90msp-RKSJ-H': [[0, 128, 160, 223], [33088, 40956, 57408, 64764]],
'90msp-RKSJ-V': [[0, 128, 160, 223], [33088, 40956, 57408, 64764]],
'90pv-RKSJ-H': [[0, 128, 160, 223, 253, 255], [33088, 40956, 57408, 64764]],
'90pv-RKSJ-V': [[0, 128, 160, 223, 253, 255], [33088, 40956, 57408, 64764]],
'Add-H': [[], [8481, 32382]],
'Add-RKSJ-H': [[0, 128, 160, 223], [33088, 40956, 57408, 64764]],
'Add-RKSJ-V': [[0, 128, 160, 223], [33088, 40956, 57408, 64764]],
'Add-V': [[], [8481, 32382]],
'Adobe-Japan1-0': [[], [0, 8447]],
'Adobe-Japan1-1': [[], [0, 8447]],
'Adobe-Japan1-2': [[], [0, 8959]],
'Adobe-Japan1-3': [[], [0, 9471]],
'Adobe-Japan1-4': [[], [0, 15615]],
'Adobe-Japan1-5': [[], [0, 20479]],
'Adobe-Japan1-6': [[], [0, 23295]],
'Adobe-Japan1-UCS2': [[], [0, 65535]],
'Adobe-Japan2-0': [[], [0, 6143]],
'EUC-H': [[0, 128], [36512, 36575, 41377, 65278]],
'EUC-V': [[0, 128], [36512, 36575, 41377, 65278]],
'Ext-H': [[], [8481, 32382]],
'Ext-RKSJ-H': [[0, 128, 160, 223], [33088, 40956, 57408, 64764]],
'Ext-RKSJ-V': [[0, 128, 160, 223], [33088, 40956, 57408, 64764]],
'Ext-V': [[], [8481, 32382]],
'H': [[], [8481, 32382]],
'Hankaku': [[0, 255], []],
'Hiragana': [[0, 255], []],
'Hojo-EUC-H': [[], [], [9413025, 9436926], []],
'Hojo-EUC-V': [[], [], [9413025, 9436926], []],
'Hojo-H': [[], [8481, 32382]],
'Hojo-V': [[], [8481, 32382]],
'Katakana': [[0, 255], []],
'NWP-H': [[], [8481, 32382]],
'NWP-V': [[], [8481, 32382]],
'RKSJ-H': [[0, 128, 160, 223], [33088, 40956, 57408, 64764]],
'RKSJ-V': [[0, 128, 160, 223], [33088, 40956, 57408, 64764]],
'Roman': [[0, 255], []],
'UniHojo-UCS2-H': [[], [0, 55295, 57344, 65535]],
'UniHojo-UCS2-V': [[], [0, 55295, 57344, 65535]],
'UniHojo-UTF16-H': [[], [0, 55295, 57344, 65535], [],
[3623934976, 3690979327]],
'UniHojo-UTF16-V': [[], [0, 55295, 57344, 65535], [],
[3623934976, 3690979327]],
'UniJIS-UCS2-H': [[], [0, 55295, 57344, 65535]],
'UniJIS-UCS2-HW-H': [[], [0, 55295, 57344, 65535]],
'UniJIS-UCS2-HW-V': [[], [0, 55295, 57344, 65535]],
'UniJIS-UCS2-V': [[], [0, 55295, 57344, 65535]],
'UniJIS-UTF16-H': [[], [0, 55295, 57344, 65535], [],
[3623934976, 3690979327]],
'UniJIS-UTF16-V': [[], [0, 55295, 57344, 65535], [],
[3623934976, 3690979327]],
'UniJISPro-UCS2-HW-V': [[], [0, 55295, 57344, 65535]],
'UniJISPro-UCS2-V': [[], [0, 55295, 57344, 65535]],
'V': [[], [8481, 32382]],
'WP-Symbol': [[0, 255], []],
'Adobe-Korea1-0': [[], [0, 9471]],
'Adobe-Korea1-1': [[], [0, 18175]],
'Adobe-Korea1-2': [[], [0, 18431]],
'Adobe-Korea1-UCS2': [[], [0, 65535]],
'KSC-EUC-H': [[0, 128], [41377, 65278]],
'KSC-EUC-V': [[0, 128], [41377, 65278]],
'KSC-H': [[], [8481, 32382]],
'KSC-Johab-H': [[0, 128], [33857, 54270, 55345, 57086, 57393, 63998]],
'KSC-Johab-V': [[0, 128], [33857, 54270, 55345, 57086, 57393, 63998]],
'KSC-V': [[], [8481, 32382]],
'KSCms-UHC-H': [[0, 128], [33089, 65278]],
'KSCms-UHC-HW-H': [[0, 128], [33089, 65278]],
'KSCms-UHC-HW-V': [[0, 128], [33089, 65278]],
'KSCms-UHC-V': [[0, 128], [33089, 65278]],
'KSCpc-EUC-H': [[0, 132, 254, 255], [41281, 65022]],
'KSCpc-EUC-V': [[0, 132, 254, 255], [41281, 65022]],
'UniKS-UCS2-H': [[], [0, 55295, 57344, 65535]],
'UniKS-UCS2-V': [[], [0, 55295, 57344, 65535]],
'UniKS-UTF16-H': [[], [0, 55295, 57344, 65535], [], [3623934976, 3690979327]],
'UniKS-UTF16-V': [[], [0, 55295, 57344, 65535], [], [3623934976, 3690979327]]
};
// CMap, not to be confused with TrueType's cmap.
var CMap = (function CMapClosure() {
function CMap() {
// Codespace ranges are stored as follows:
// [[1BytePairs], [2BytePairs], [3BytePairs], [4BytePairs]]
// where nBytePairs are ranges e.g. [low1, high1, low2, high2, ...]
this.codespaceRanges = [[], [], [], []];
this.map = [];
this.vertical = false;
}
CMap.prototype = {
addCodespaceRange: function(n, low, high) {
this.codespaceRanges[n - 1].push(low, high);
},
mapRange: function(low, high, dstLow) {
var lastByte = dstLow.length - 1;
while (low <= high) {
this.map[low] = dstLow;
// Only the last byte has to be incremented.
dstLow = dstLow.substr(0, lastByte) +
String.fromCharCode(dstLow.charCodeAt(lastByte) + 1);
++low;
}
},
mapRangeToArray: function(low, high, array) {
var i = 0;
while (low <= high) {
this.map[low] = array[i++];
++low;
}
},
mapOne: function(src, dst) {
this.map[src] = dst;
},
lookup: function(code) {
return this.map[code];
},
readCharCode: function(str, offset) {
var c = 0;
var codespaceRanges = this.codespaceRanges;
var codespaceRangesLen = this.codespaceRanges.length;
// 9.7.6.2 CMap Mapping
// The code length is at most 4.
for (var n = 0; n < codespaceRangesLen; n++) {
c = ((c << 8) | str.charCodeAt(offset + n)) >>> 0;
// Check each codespace range to see if it falls within.
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) {
return [c, n + 1];
}
}
}
return [0, 1];
}
};
return CMap;
})();
var IdentityCMap = (function IdentityCMapClosure() {
function IdentityCMap(vertical, n) {
CMap.call(this);
this.vertical = vertical;
this.addCodespaceRange(n, 0, 0xffff);
this.mapRange(0, 0xffff, '\u0000');
}
Util.inherit(IdentityCMap, CMap, {});
return IdentityCMap;
})();
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 (!isString(obj)) {
error('Malformed CMap: expected string.');
}
}
function expectInt(obj) {
if (!isInt(obj)) {
error('Malformed CMap: expected int.');
}
}
function parseBfChar(cMap, lexer) {
while (true) {
var obj = lexer.getObj();
if (isEOF(obj)) {
break;
}
if (isCmd(obj, 'endbfchar')) {
return;
}
expectString(obj);
var src = strToInt(obj);
obj = lexer.getObj();
// TODO are /dstName used?
expectString(obj);
var dst = obj;
cMap.mapOne(src, dst);
}
}
function parseBfRange(cMap, lexer) {
while (true) {
var obj = lexer.getObj();
if (isEOF(obj)) {
break;
}
if (isCmd(obj, 'endbfrange')) {
return;
}
expectString(obj);
var low = strToInt(obj);
obj = lexer.getObj();
expectString(obj);
var high = strToInt(obj);
obj = lexer.getObj();
if (isInt(obj) || isString(obj)) {
var dstLow = isInt(obj) ? String.fromCharCode(obj) : obj;
cMap.mapRange(low, high, dstLow);
} else if (isCmd(obj, '[')) {
obj = lexer.getObj();
var array = [];
while (!isCmd(obj, ']') && !isEOF(obj)) {
array.push(obj);
obj = lexer.getObj();
}
cMap.mapRangeToArray(low, high, array);
} else {
break;
}
}
error('Invalid bf range.');
}
function parseCidChar(cMap, lexer) {
while (true) {
var obj = lexer.getObj();
if (isEOF(obj)) {
break;
}
if (isCmd(obj, 'endcidchar')) {
return;
}
expectString(obj);
var src = strToInt(obj);
obj = lexer.getObj();
expectInt(obj);
var dst = String.fromCharCode(obj);
cMap.mapOne(src, dst);
}
}
function parseCidRange(cMap, lexer) {
while (true) {
var obj = lexer.getObj();
if (isEOF(obj)) {
break;
}
if (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 = String.fromCharCode(obj);
cMap.mapRange(low, high, dstLow);
}
}
function parseCodespaceRange(cMap, lexer) {
while (true) {
var obj = lexer.getObj();
if (isEOF(obj)) {
break;
}
if (isCmd(obj, 'endcodespacerange')) {
return;
}
if (!isString(obj)) {
break;
}
var low = strToInt(obj);
obj = lexer.getObj();
if (!isString(obj)) {
break;
}
var high = strToInt(obj);
cMap.addCodespaceRange(obj.length, low, high);
}
error('Invalid codespace range.');
}
function parseCmap(cMap, lexer) {
objLoop: while (true) {
var obj = lexer.getObj();
if (isEOF(obj)) {
break;
} else if (isCmd(obj)) {
switch (obj.cmd) {
case 'endcMap':
break objLoop;
case 'usecMap':
// TODO
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;
}
}
}
}
return {
create: function (encoding) {
if (isName(encoding)) {
switch (encoding.name) {
case 'Identity-H':
return new IdentityCMap(false, 2);
case 'Identity-V':
return new IdentityCMap(true, 2);
default:
if (encoding.name in CMAP_CODESPACES) {
// XXX: Temporary hack so the correct amount of bytes are read in
// CMap.readCharCode.
var cMap = new CMap();
cMap.codespaceRanges = CMAP_CODESPACES[encoding.name];
return cMap;
}
return null;
}
} else if (isStream(encoding)) {
var cMap = new CMap();
var lexer = new Lexer(encoding);
try {
parseCmap(cMap, lexer);
} catch (e) {
warn('Invalid CMap data. ' + e);
}
return cMap;
}
error('Encoding required.');
}
};
})();

128
src/core/evaluator.js
Unescape View File

@ -20,7 +20,7 @@ @@ -20,7 +20,7 @@
isStream, isString, JpegStream, Lexer, Metrics, Name, Parser,
Pattern, PDFImage, PDFJS, serifFonts, stdFontMap, symbolsFonts,
TilingPattern, TODO, warn, Util, Promise,
RefSetCache, isRef, TextRenderingMode */
RefSetCache, isRef, TextRenderingMode, CMapFactory */
'use strict';
@ -1010,119 +1010,24 @@ var PartialEvaluator = (function PartialEvaluatorClosure() { @@ -1010,119 +1010,24 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
if (!isIdentityMap)
error('ToUnicode file cmap translation not implemented');
} else if (isStream(cmapObj)) {
var tokens = [];
var token = '';
var beginArrayToken = {};
var cmap = cmapObj.getBytes(cmapObj.length);
for (var i = 0, ii = cmap.length; i < ii; i++) {
var octet = cmap[i];
if (octet == 0x20 || octet == 0x0D || octet == 0x0A ||
octet == 0x3C || octet == 0x5B || octet == 0x5D) {
switch (token) {
case 'usecmap':
error('usecmap is not implemented');
break;
case 'beginbfchar':
case 'beginbfrange':
case 'begincidchar':
case 'begincidrange':
token = '';
tokens = [];
break;
case 'endcidrange':
case 'endbfrange':
for (var j = 0, jj = tokens.length; j < jj; j += 3) {
var startRange = tokens[j];
var endRange = tokens[j + 1];
var code = tokens[j + 2];
if (code == 0xFFFF) {
// CMap is broken, assuming code == startRange
code = startRange;
}
if (isArray(code)) {
var codeindex = 0;
while (startRange <= endRange) {
charToUnicode[startRange] = code[codeindex++];
++startRange;
}
} else {
while (startRange <= endRange) {
charToUnicode[startRange] = code++;
++startRange;
}
}
}
break;
case 'endcidchar':
case 'endbfchar':
for (var j = 0, jj = tokens.length; j < jj; j += 2) {
var index = tokens[j];
var code = tokens[j + 1];
charToUnicode[index] = code;
}
break;
case '':
break;
default:
if (token[0] >= '0' && token[0] <= '9')
token = parseInt(token, 10); // a number
tokens.push(token);
token = '';
}
switch (octet) {
case 0x5B:
// begin list parsing
tokens.push(beginArrayToken);
break;
case 0x5D:
// collect array items
var items = [], item;
while (tokens.length &&
(item = tokens.pop()) != beginArrayToken)
items.unshift(item);
tokens.push(items);
break;
}
} else if (octet == 0x3E) {
if (token.length) {
// Heuristic: guessing chars size by checking numbers sizes
// in the CMap entries.
if (token.length == 2 && properties.composite)
properties.wideChars = false;
if (token.length <= 4) {
// parsing hex number
tokens.push(parseInt(token, 16));
token = '';
} else {
// parsing hex UTF-16BE numbers
var str = [];
for (var k = 0, kk = token.length; k < kk; k += 4) {
var b = parseInt(token.substr(k, 4), 16);
if (b <= 0x10) {
k += 4;
b = (b << 16) | parseInt(token.substr(k, 4), 16);
b -= 0x10000;
str.push(0xD800 | (b >> 10));
str.push(0xDC00 | (b & 0x3FF));
break;
}
str.push(b);
}
tokens.push(String.fromCharCode.apply(String, str));
token = '';
}
var cmap = CMapFactory.create(cmapObj).map;
// Convert UTF-16BE
for (var i in cmap) {
var token = cmap[i];
var str = [];
for (var k = 0; k < token.length; k += 2) {
var w1 = (token.charCodeAt(k) << 8) | token.charCodeAt(k + 1);
if ((w1 & 0xF800) !== 0xD800) { // w1 < 0xD800 || w1 > 0xDFFF
str.push(w1);
continue;
}
} else {
token += String.fromCharCode(octet);
k += 2;
var w2 = (token.charCodeAt(k) << 8) | token.charCodeAt(k + 1);
str.push(((w1 & 0x3ff) << 10) + (w2 & 0x3ff) + 0x10000);
}
cmap[i] = String.fromCharCode.apply(String, str);
}
return cmap;
}
return charToUnicode;
},
@ -1409,6 +1314,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() { @@ -1409,6 +1314,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
properties.cidEncoding = cidEncoding.name;
properties.vertical = /-V$/.test(cidEncoding.name);
}
properties.cmap = CMapFactory.create(cidEncoding);
}
this.extractWidths(dict, xref, descriptor, properties);
this.extractDataStructures(dict, baseDict, xref, properties);

29
src/core/fonts.js
Unescape View File

@ -18,7 +18,7 @@ @@ -18,7 +18,7 @@
ExpertSubsetCharset, FileReaderSync, GlyphsUnicode,
info, isArray, isNum, ISOAdobeCharset, Stream,
stringToBytes, TextDecoder, TODO, warn, Lexer, Util,
FONT_IDENTITY_MATRIX, FontRendererFactory, shadow */
FONT_IDENTITY_MATRIX, FontRendererFactory, shadow, isString */
'use strict';
@ -2182,6 +2182,7 @@ var Font = (function FontClosure() { @@ -2182,6 +2182,7 @@ var Font = (function FontClosure() {
this.composite = properties.composite;
this.wideChars = properties.wideChars;
this.hasEncoding = properties.hasEncoding;
this.cmap = properties.cmap;
this.fontMatrix = properties.fontMatrix;
if (properties.type == 'Type3') {
@ -3701,7 +3702,7 @@ var Font = (function FontClosure() { @@ -3701,7 +3702,7 @@ var Font = (function FontClosure() {
var dupFirstEntry = false;
if (properties.type == 'CIDFontType2' && properties.toUnicode &&
properties.toUnicode[0] > 0) {
properties.toUnicode[0] > '\u0000') {
// oracle's defect (see 3427), duplicating first entry
dupFirstEntry = true;
numGlyphs++;
@ -4250,8 +4251,12 @@ var Font = (function FontClosure() { @@ -4250,8 +4251,12 @@ var Font = (function FontClosure() {
var unicode = toUnicode[i];
var fontCharCode = typeof unicode === 'object' ? unusedUnicode++ :
unicode;
if (typeof unicode !== 'undefined')
if (typeof unicode !== 'undefined') {
if (isString(fontCharCode) && fontCharCode.length === 1) {
fontCharCode = fontCharCode.charCodeAt(0);
}
result[i] = fontCharCode;
}
}
return result;
},
@ -4264,7 +4269,7 @@ var Font = (function FontClosure() { @@ -4264,7 +4269,7 @@ var Font = (function FontClosure() {
var isIdentityMap = toUnicode.length === 0;
for (var i = firstChar, ii = lastChar; i <= ii; i++) {
// TODO missing map the character according font's CMap
map[i] = isIdentityMap ? i : toUnicode[i];
map[i] = isIdentityMap ? String.fromCharCode(i) : toUnicode[i];
}
} else {
for (var i = firstChar, ii = lastChar; i <= ii; i++) {
@ -4272,7 +4277,7 @@ var Font = (function FontClosure() { @@ -4272,7 +4277,7 @@ var Font = (function FontClosure() {
if (!glyph)
glyph = properties.baseEncoding[i];
if (!!glyph && (glyph in GlyphsUnicode))
map[i] = GlyphsUnicode[glyph];
map[i] = String.fromCharCode(GlyphsUnicode[glyph]);
}
}
this.toUnicode = map;
@ -4535,15 +4540,15 @@ var Font = (function FontClosure() { @@ -4535,15 +4540,15 @@ var Font = (function FontClosure() {
warn('Unsupported CMap: ' + cidEncoding);
}
}
if (!converter && this.wideChars) {
if (!converter && this.cmap) {
var i = 0;
// composite fonts have multi-byte strings convert the string from
// single-byte to multi-byte
// XXX assuming CIDFonts are two-byte - later need to extract the
// correct byte encoding according to the PDF spec
var length = chars.length - 1; // looping over two bytes at a time so
// loop should never end on the last byte
for (var i = 0; i < length; i++) {
var charcode = int16([chars.charCodeAt(i++), chars.charCodeAt(i)]);
while (i < chars.length) {
var c = this.cmap.readCharCode(chars, i);
var charcode = c[0];
var length = c[1];
i += length;
var glyph = this.charToGlyph(charcode);
glyphs.push(glyph);
// placing null after each word break charcode (ASCII SPACE)

1
src/worker_loader.js
Unescape View File

@ -34,6 +34,7 @@ var files = [ @@ -34,6 +34,7 @@ var files = [
'core/cidmaps.js',
'core/crypto.js',
'core/evaluator.js',
'core/cmap.js',
'core/fonts.js',
'core/font_renderer.js',
'core/glyphlist.js',

BIN
test/pdfs/bug898853.pdf
View File

Binary file not shown.

7
test/test_manifest.json
Unescape View File

@ -869,6 +869,13 @@ @@ -869,6 +869,13 @@
"link": true,
"type": "eq"
},
{ "id": "bug898853.pdf",
"file": "pdfs/bug898853.pdf",
"md5": "37c37702bf98d33f9f74e2380c4d1a3f",
"rounds": 1,
"type": "eq",
"about": "Has a multi-byte char codes."
},
{ "id": "issue1912",
"file": "pdfs/issue1912.pdf",
"md5": "15305b7c2cba971e7423de3f6ad38fef",

86
test/unit/cmap_spec.js
Unescape View File

@ -0,0 +1,86 @@ @@ -0,0 +1,86 @@
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
/* globals expect, it, describe, StringStream, Lexer, CMapFactory */
'use strict';
describe('cmap', function() {
it('parses beginbfchar', function() {
var str = '2 beginbfchar\n' +
'<03> <00>\n' +
'<04> <01>\n' +
'endbfchar\n';
var stream = new StringStream(str);
var cmap = CMapFactory.create(stream);
expect(cmap.lookup(0x03)).toEqual(String.fromCharCode(0x00));
expect(cmap.lookup(0x04)).toEqual(String.fromCharCode(0x01));
expect(cmap.lookup(0x05)).toBeUndefined();
});
it('parses beginbfrange with range', function() {
var str = '1 beginbfrange\n' +
'<06> <0B> 0\n' +
'endbfrange\n';
var stream = new StringStream(str);
var cmap = CMapFactory.create(stream);
expect(cmap.lookup(0x05)).toBeUndefined();
expect(cmap.lookup(0x06)).toEqual(String.fromCharCode(0x00));
expect(cmap.lookup(0x0B)).toEqual(String.fromCharCode(0x05));
expect(cmap.lookup(0x0C)).toBeUndefined();
});
it('parses beginbfrange with array', function() {
var str = '1 beginbfrange\n' +
'<0D> <12> [ 0 1 2 3 4 5 ]\n' +
'endbfrange\n';
var stream = new StringStream(str);
var cmap = CMapFactory.create(stream);
expect(cmap.lookup(0x0C)).toBeUndefined();
expect(cmap.lookup(0x0D)).toEqual(0x00);
expect(cmap.lookup(0x12)).toEqual(0x05);
expect(cmap.lookup(0x13)).toBeUndefined();
});
it('parses begincidchar', function() {
var str = '1 begincidchar\n' +
'<14> 0\n' +
'endcidchar\n';
var stream = new StringStream(str);
var cmap = CMapFactory.create(stream);
expect(cmap.lookup(0x14)).toEqual(String.fromCharCode(0x00));
expect(cmap.lookup(0x15)).toBeUndefined();
});
it('parses begincidrange', function() {
var str = '1 begincidrange\n' +
'<0016> <001B> 0\n' +
'endcidrange\n';
var stream = new StringStream(str);
var cmap = CMapFactory.create(stream);
expect(cmap.lookup(0x15)).toBeUndefined();
expect(cmap.lookup(0x16)).toEqual(String.fromCharCode(0x00));
expect(cmap.lookup(0x1B)).toEqual(String.fromCharCode(0x05));
expect(cmap.lookup(0x1C)).toBeUndefined();
});
it('decodes codespace ranges', function() {
var str = '1 begincodespacerange\n' +
'<01> <02>\n' +
'<00000003> <00000004>\n' +
'endcodespacerange\n';
var stream = new StringStream(str);
var cmap = CMapFactory.create(stream);
var c = cmap.readCharCode(String.fromCharCode(1), 0);
expect(c[0]).toEqual(1);
expect(c[1]).toEqual(1);
c = cmap.readCharCode(String.fromCharCode(0, 0, 0, 3), 0);
expect(c[0]).toEqual(3);
expect(c[1]).toEqual(4);
});
it('decodes 4 byte codespace ranges', function() {
var str = '1 begincodespacerange\n' +
'<8EA1A1A1> <8EA1FEFE>\n' +
'endcodespacerange\n';
var stream = new StringStream(str);
var cmap = CMapFactory.create(stream);
var c = cmap.readCharCode(String.fromCharCode(0x8E, 0xA1, 0xA1, 0xA1), 0);
expect(c[0]).toEqual(0x8EA1A1A1);
expect(c[1]).toEqual(4);
});
});

2
test/unit/unit_test.html
Unescape View File

@ -26,6 +26,7 @@ @@ -26,6 +26,7 @@
<script type="text/javascript" src="../../src/shared/colorspace.js"></script>
<script type="text/javascript" src="../../src/core/crypto.js"></script>
<script type="text/javascript" src="../../src/core/evaluator.js"></script>
<script type="text/javascript" src="../../src/core/cmap.js"></script>
<script type="text/javascript" src="../../src/core/fonts.js"></script>
<script type="text/javascript" src="../../src/core/glyphlist.js"></script>
<script type="text/javascript" src="../../src/core/image.js"></script>
@ -49,6 +50,7 @@ @@ -49,6 +50,7 @@
<script type="text/javascript" src="api_spec.js"></script>
<script type="text/javascript" src="metadata_spec.js"></script>
<script type="text/javascript" src="util_spec.js"></script>
<script type="text/javascript" src="cmap_spec.js"></script>
<script type="text/javascript">
'use strict';

Write Preview
Loading…
Cancel
Save