[Pkg-javascript-commits] [pdf.js] 324/414: Extract `CFFParser` from fonts.js (issue 6777)
David Prévot
taffit at moszumanska.debian.org
Tue Jun 28 17:12:35 UTC 2016
This is an automated email from the git hooks/post-receive script.
taffit pushed a commit to branch master
in repository pdf.js.
commit b961e1d21b521b8dfb9758e450ca4f8be836bd12
Author: Jonas Jenwald <jonas.jenwald at gmail.com>
Date: Thu Mar 31 19:53:07 2016 +0200
Extract `CFFParser` from fonts.js (issue 6777)
---
src/core/cff_parser.js | 1646 +++++++++++++++++++++++++++++++++++++++++++++
src/core/font_renderer.js | 32 +-
src/core/fonts.js | 1634 +-------------------------------------------
test/unit/font_spec.js | 75 +--
test/unit/jasmine-boot.js | 7 +-
5 files changed, 1721 insertions(+), 1673 deletions(-)
diff --git a/src/core/cff_parser.js b/src/core/cff_parser.js
new file mode 100644
index 0000000..8c8fe05
--- /dev/null
+++ b/src/core/cff_parser.js
@@ -0,0 +1,1646 @@
+/* Copyright 2016 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';
+
+(function (root, factory) {
+ if (typeof define === 'function' && define.amd) {
+ define('pdfjs/core/cff_parser', ['exports', 'pdfjs/shared/util',
+ 'pdfjs/core/charsets', 'pdfjs/core/encodings'], factory);
+ } else if (typeof exports !== 'undefined') {
+ factory(exports, require('../shared/util.js'), require('./charsets.js'),
+ require('./encodings.js'));
+ } else {
+ factory((root.pdfjsCoreCFFParser = {}), root.pdfjsSharedUtil,
+ root.pdfjsCoreCharsets, root.pdfjsCoreEncodings);
+ }
+}(this, function (exports, sharedUtil, coreCharsets, coreEncodings) {
+
+var error = sharedUtil.error;
+var info = sharedUtil.info;
+var bytesToString = sharedUtil.bytesToString;
+var warn = sharedUtil.warn;
+var isArray = sharedUtil.isArray;
+var Util = sharedUtil.Util;
+var stringToBytes = sharedUtil.stringToBytes;
+var assert = sharedUtil.assert;
+var ISOAdobeCharset = coreCharsets.ISOAdobeCharset;
+var ExpertCharset = coreCharsets.ExpertCharset;
+var ExpertSubsetCharset = coreCharsets.ExpertSubsetCharset;
+var StandardEncoding = coreEncodings.StandardEncoding;
+var ExpertEncoding = coreEncodings.ExpertEncoding;
+
+// Maximum subroutine call depth of type 2 chartrings. Matches OTS.
+var MAX_SUBR_NESTING = 10;
+
+/**
+ * The CFF class takes a Type1 file and wrap it into a
+ * 'Compact Font Format' which itself embed Type2 charstrings.
+ */
+var CFFStandardStrings = [
+ '.notdef', 'space', 'exclam', 'quotedbl', 'numbersign', 'dollar', 'percent',
+ 'ampersand', 'quoteright', 'parenleft', 'parenright', 'asterisk', 'plus',
+ 'comma', 'hyphen', 'period', 'slash', 'zero', 'one', 'two', 'three', 'four',
+ 'five', 'six', 'seven', 'eight', 'nine', 'colon', 'semicolon', 'less',
+ 'equal', 'greater', 'question', 'at', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
+ 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
+ 'X', 'Y', 'Z', 'bracketleft', 'backslash', 'bracketright', 'asciicircum',
+ 'underscore', 'quoteleft', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
+ 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y',
+ 'z', 'braceleft', 'bar', 'braceright', 'asciitilde', 'exclamdown', 'cent',
+ 'sterling', 'fraction', 'yen', 'florin', 'section', 'currency',
+ 'quotesingle', 'quotedblleft', 'guillemotleft', 'guilsinglleft',
+ 'guilsinglright', 'fi', 'fl', 'endash', 'dagger', 'daggerdbl',
+ 'periodcentered', 'paragraph', 'bullet', 'quotesinglbase', 'quotedblbase',
+ 'quotedblright', 'guillemotright', 'ellipsis', 'perthousand', 'questiondown',
+ 'grave', 'acute', 'circumflex', 'tilde', 'macron', 'breve', 'dotaccent',
+ 'dieresis', 'ring', 'cedilla', 'hungarumlaut', 'ogonek', 'caron', 'emdash',
+ 'AE', 'ordfeminine', 'Lslash', 'Oslash', 'OE', 'ordmasculine', 'ae',
+ 'dotlessi', 'lslash', 'oslash', 'oe', 'germandbls', 'onesuperior',
+ 'logicalnot', 'mu', 'trademark', 'Eth', 'onehalf', 'plusminus', 'Thorn',
+ 'onequarter', 'divide', 'brokenbar', 'degree', 'thorn', 'threequarters',
+ 'twosuperior', 'registered', 'minus', 'eth', 'multiply', 'threesuperior',
+ 'copyright', 'Aacute', 'Acircumflex', 'Adieresis', 'Agrave', 'Aring',
+ 'Atilde', 'Ccedilla', 'Eacute', 'Ecircumflex', 'Edieresis', 'Egrave',
+ 'Iacute', 'Icircumflex', 'Idieresis', 'Igrave', 'Ntilde', 'Oacute',
+ 'Ocircumflex', 'Odieresis', 'Ograve', 'Otilde', 'Scaron', 'Uacute',
+ 'Ucircumflex', 'Udieresis', 'Ugrave', 'Yacute', 'Ydieresis', 'Zcaron',
+ 'aacute', 'acircumflex', 'adieresis', 'agrave', 'aring', 'atilde',
+ 'ccedilla', 'eacute', 'ecircumflex', 'edieresis', 'egrave', 'iacute',
+ 'icircumflex', 'idieresis', 'igrave', 'ntilde', 'oacute', 'ocircumflex',
+ 'odieresis', 'ograve', 'otilde', 'scaron', 'uacute', 'ucircumflex',
+ 'udieresis', 'ugrave', 'yacute', 'ydieresis', 'zcaron', 'exclamsmall',
+ 'Hungarumlautsmall', 'dollaroldstyle', 'dollarsuperior', 'ampersandsmall',
+ 'Acutesmall', 'parenleftsuperior', 'parenrightsuperior', 'twodotenleader',
+ 'onedotenleader', 'zerooldstyle', 'oneoldstyle', 'twooldstyle',
+ 'threeoldstyle', 'fouroldstyle', 'fiveoldstyle', 'sixoldstyle',
+ 'sevenoldstyle', 'eightoldstyle', 'nineoldstyle', 'commasuperior',
+ 'threequartersemdash', 'periodsuperior', 'questionsmall', 'asuperior',
+ 'bsuperior', 'centsuperior', 'dsuperior', 'esuperior', 'isuperior',
+ 'lsuperior', 'msuperior', 'nsuperior', 'osuperior', 'rsuperior', 'ssuperior',
+ 'tsuperior', 'ff', 'ffi', 'ffl', 'parenleftinferior', 'parenrightinferior',
+ 'Circumflexsmall', 'hyphensuperior', 'Gravesmall', 'Asmall', 'Bsmall',
+ 'Csmall', 'Dsmall', 'Esmall', 'Fsmall', 'Gsmall', 'Hsmall', 'Ismall',
+ 'Jsmall', 'Ksmall', 'Lsmall', 'Msmall', 'Nsmall', 'Osmall', 'Psmall',
+ 'Qsmall', 'Rsmall', 'Ssmall', 'Tsmall', 'Usmall', 'Vsmall', 'Wsmall',
+ 'Xsmall', 'Ysmall', 'Zsmall', 'colonmonetary', 'onefitted', 'rupiah',
+ 'Tildesmall', 'exclamdownsmall', 'centoldstyle', 'Lslashsmall',
+ 'Scaronsmall', 'Zcaronsmall', 'Dieresissmall', 'Brevesmall', 'Caronsmall',
+ 'Dotaccentsmall', 'Macronsmall', 'figuredash', 'hypheninferior',
+ 'Ogoneksmall', 'Ringsmall', 'Cedillasmall', 'questiondownsmall', 'oneeighth',
+ 'threeeighths', 'fiveeighths', 'seveneighths', 'onethird', 'twothirds',
+ 'zerosuperior', 'foursuperior', 'fivesuperior', 'sixsuperior',
+ 'sevensuperior', 'eightsuperior', 'ninesuperior', 'zeroinferior',
+ 'oneinferior', 'twoinferior', 'threeinferior', 'fourinferior',
+ 'fiveinferior', 'sixinferior', 'seveninferior', 'eightinferior',
+ 'nineinferior', 'centinferior', 'dollarinferior', 'periodinferior',
+ 'commainferior', 'Agravesmall', 'Aacutesmall', 'Acircumflexsmall',
+ 'Atildesmall', 'Adieresissmall', 'Aringsmall', 'AEsmall', 'Ccedillasmall',
+ 'Egravesmall', 'Eacutesmall', 'Ecircumflexsmall', 'Edieresissmall',
+ 'Igravesmall', 'Iacutesmall', 'Icircumflexsmall', 'Idieresissmall',
+ 'Ethsmall', 'Ntildesmall', 'Ogravesmall', 'Oacutesmall', 'Ocircumflexsmall',
+ 'Otildesmall', 'Odieresissmall', 'OEsmall', 'Oslashsmall', 'Ugravesmall',
+ 'Uacutesmall', 'Ucircumflexsmall', 'Udieresissmall', 'Yacutesmall',
+ 'Thornsmall', 'Ydieresissmall', '001.000', '001.001', '001.002', '001.003',
+ 'Black', 'Bold', 'Book', 'Light', 'Medium', 'Regular', 'Roman', 'Semibold'
+];
+
+
+var CFFParser = (function CFFParserClosure() {
+ var CharstringValidationData = [
+ null,
+ { id: 'hstem', min: 2, stackClearing: true, stem: true },
+ null,
+ { id: 'vstem', min: 2, stackClearing: true, stem: true },
+ { id: 'vmoveto', min: 1, stackClearing: true },
+ { id: 'rlineto', min: 2, resetStack: true },
+ { id: 'hlineto', min: 1, resetStack: true },
+ { id: 'vlineto', min: 1, resetStack: true },
+ { id: 'rrcurveto', min: 6, resetStack: true },
+ null,
+ { id: 'callsubr', min: 1, undefStack: true },
+ { id: 'return', min: 0, undefStack: true },
+ null, // 12
+ null,
+ { id: 'endchar', min: 0, stackClearing: true },
+ null,
+ null,
+ null,
+ { id: 'hstemhm', min: 2, stackClearing: true, stem: true },
+ { id: 'hintmask', min: 0, stackClearing: true },
+ { id: 'cntrmask', min: 0, stackClearing: true },
+ { id: 'rmoveto', min: 2, stackClearing: true },
+ { id: 'hmoveto', min: 1, stackClearing: true },
+ { id: 'vstemhm', min: 2, stackClearing: true, stem: true },
+ { id: 'rcurveline', min: 8, resetStack: true },
+ { id: 'rlinecurve', min: 8, resetStack: true },
+ { id: 'vvcurveto', min: 4, resetStack: true },
+ { id: 'hhcurveto', min: 4, resetStack: true },
+ null, // shortint
+ { id: 'callgsubr', min: 1, undefStack: true },
+ { id: 'vhcurveto', min: 4, resetStack: true },
+ { id: 'hvcurveto', min: 4, resetStack: true }
+ ];
+ var CharstringValidationData12 = [
+ null,
+ null,
+ null,
+ { id: 'and', min: 2, stackDelta: -1 },
+ { id: 'or', min: 2, stackDelta: -1 },
+ { id: 'not', min: 1, stackDelta: 0 },
+ null,
+ null,
+ null,
+ { id: 'abs', min: 1, stackDelta: 0 },
+ { id: 'add', min: 2, stackDelta: -1,
+ stackFn: function stack_div(stack, index) {
+ stack[index - 2] = stack[index - 2] + stack[index - 1];
+ }
+ },
+ { id: 'sub', min: 2, stackDelta: -1,
+ stackFn: function stack_div(stack, index) {
+ stack[index - 2] = stack[index - 2] - stack[index - 1];
+ }
+ },
+ { id: 'div', min: 2, stackDelta: -1,
+ stackFn: function stack_div(stack, index) {
+ stack[index - 2] = stack[index - 2] / stack[index - 1];
+ }
+ },
+ null,
+ { id: 'neg', min: 1, stackDelta: 0,
+ stackFn: function stack_div(stack, index) {
+ stack[index - 1] = -stack[index - 1];
+ }
+ },
+ { id: 'eq', min: 2, stackDelta: -1 },
+ null,
+ null,
+ { id: 'drop', min: 1, stackDelta: -1 },
+ null,
+ { id: 'put', min: 2, stackDelta: -2 },
+ { id: 'get', min: 1, stackDelta: 0 },
+ { id: 'ifelse', min: 4, stackDelta: -3 },
+ { id: 'random', min: 0, stackDelta: 1 },
+ { id: 'mul', min: 2, stackDelta: -1,
+ stackFn: function stack_div(stack, index) {
+ stack[index - 2] = stack[index - 2] * stack[index - 1];
+ }
+ },
+ null,
+ { id: 'sqrt', min: 1, stackDelta: 0 },
+ { id: 'dup', min: 1, stackDelta: 1 },
+ { id: 'exch', min: 2, stackDelta: 0 },
+ { id: 'index', min: 2, stackDelta: 0 },
+ { id: 'roll', min: 3, stackDelta: -2 },
+ null,
+ null,
+ null,
+ { id: 'hflex', min: 7, resetStack: true },
+ { id: 'flex', min: 13, resetStack: true },
+ { id: 'hflex1', min: 9, resetStack: true },
+ { id: 'flex1', min: 11, resetStack: true }
+ ];
+
+ function CFFParser(file, properties, seacAnalysisEnabled) {
+ this.bytes = file.getBytes();
+ this.properties = properties;
+ this.seacAnalysisEnabled = !!seacAnalysisEnabled;
+ }
+ CFFParser.prototype = {
+ parse: function CFFParser_parse() {
+ var properties = this.properties;
+ var cff = new CFF();
+ this.cff = cff;
+
+ // The first five sections must be in order, all the others are reached
+ // via offsets contained in one of the below.
+ var header = this.parseHeader();
+ var nameIndex = this.parseIndex(header.endPos);
+ var topDictIndex = this.parseIndex(nameIndex.endPos);
+ var stringIndex = this.parseIndex(topDictIndex.endPos);
+ var globalSubrIndex = this.parseIndex(stringIndex.endPos);
+
+ var topDictParsed = this.parseDict(topDictIndex.obj.get(0));
+ var topDict = this.createDict(CFFTopDict, topDictParsed, cff.strings);
+
+ cff.header = header.obj;
+ cff.names = this.parseNameIndex(nameIndex.obj);
+ cff.strings = this.parseStringIndex(stringIndex.obj);
+ cff.topDict = topDict;
+ cff.globalSubrIndex = globalSubrIndex.obj;
+
+ this.parsePrivateDict(cff.topDict);
+
+ cff.isCIDFont = topDict.hasName('ROS');
+
+ var charStringOffset = topDict.getByName('CharStrings');
+ var charStringIndex = this.parseIndex(charStringOffset).obj;
+
+ var fontMatrix = topDict.getByName('FontMatrix');
+ if (fontMatrix) {
+ properties.fontMatrix = fontMatrix;
+ }
+
+ var fontBBox = topDict.getByName('FontBBox');
+ if (fontBBox) {
+ // adjusting ascent/descent
+ properties.ascent = fontBBox[3];
+ properties.descent = fontBBox[1];
+ properties.ascentScaled = true;
+ }
+
+ var charset, encoding;
+ if (cff.isCIDFont) {
+ var fdArrayIndex = this.parseIndex(topDict.getByName('FDArray')).obj;
+ for (var i = 0, ii = fdArrayIndex.count; i < ii; ++i) {
+ var dictRaw = fdArrayIndex.get(i);
+ var fontDict = this.createDict(CFFTopDict, this.parseDict(dictRaw),
+ cff.strings);
+ this.parsePrivateDict(fontDict);
+ cff.fdArray.push(fontDict);
+ }
+ // cid fonts don't have an encoding
+ encoding = null;
+ charset = this.parseCharsets(topDict.getByName('charset'),
+ charStringIndex.count, cff.strings, true);
+ cff.fdSelect = this.parseFDSelect(topDict.getByName('FDSelect'),
+ charStringIndex.count);
+ } else {
+ charset = this.parseCharsets(topDict.getByName('charset'),
+ charStringIndex.count, cff.strings, false);
+ encoding = this.parseEncoding(topDict.getByName('Encoding'),
+ properties,
+ cff.strings, charset.charset);
+ }
+
+ cff.charset = charset;
+ cff.encoding = encoding;
+
+ var charStringsAndSeacs = this.parseCharStrings(
+ charStringIndex,
+ topDict.privateDict.subrsIndex,
+ globalSubrIndex.obj,
+ cff.fdSelect,
+ cff.fdArray);
+ cff.charStrings = charStringsAndSeacs.charStrings;
+ cff.seacs = charStringsAndSeacs.seacs;
+ cff.widths = charStringsAndSeacs.widths;
+
+ return cff;
+ },
+ parseHeader: function CFFParser_parseHeader() {
+ var bytes = this.bytes;
+ var bytesLength = bytes.length;
+ var offset = 0;
+
+ // Prevent an infinite loop, by checking that the offset is within the
+ // bounds of the bytes array. Necessary in empty, or invalid, font files.
+ while (offset < bytesLength && bytes[offset] !== 1) {
+ ++offset;
+ }
+ if (offset >= bytesLength) {
+ error('Invalid CFF header');
+ } else if (offset !== 0) {
+ info('cff data is shifted');
+ bytes = bytes.subarray(offset);
+ this.bytes = bytes;
+ }
+ var major = bytes[0];
+ var minor = bytes[1];
+ var hdrSize = bytes[2];
+ var offSize = bytes[3];
+ var header = new CFFHeader(major, minor, hdrSize, offSize);
+ return { obj: header, endPos: hdrSize };
+ },
+ parseDict: function CFFParser_parseDict(dict) {
+ var pos = 0;
+
+ function parseOperand() {
+ var value = dict[pos++];
+ if (value === 30) {
+ return parseFloatOperand(pos);
+ } else if (value === 28) {
+ value = dict[pos++];
+ value = ((value << 24) | (dict[pos++] << 16)) >> 16;
+ return value;
+ } else if (value === 29) {
+ value = dict[pos++];
+ value = (value << 8) | dict[pos++];
+ value = (value << 8) | dict[pos++];
+ value = (value << 8) | dict[pos++];
+ return value;
+ } else if (value >= 32 && value <= 246) {
+ return value - 139;
+ } else if (value >= 247 && value <= 250) {
+ return ((value - 247) * 256) + dict[pos++] + 108;
+ } else if (value >= 251 && value <= 254) {
+ return -((value - 251) * 256) - dict[pos++] - 108;
+ } else {
+ error('255 is not a valid DICT command');
+ }
+ return -1;
+ }
+
+ function parseFloatOperand() {
+ var str = '';
+ var eof = 15;
+ var lookup = ['0', '1', '2', '3', '4', '5', '6', '7', '8',
+ '9', '.', 'E', 'E-', null, '-'];
+ var length = dict.length;
+ while (pos < length) {
+ var b = dict[pos++];
+ var b1 = b >> 4;
+ var b2 = b & 15;
+
+ if (b1 === eof) {
+ break;
+ }
+ str += lookup[b1];
+
+ if (b2 === eof) {
+ break;
+ }
+ str += lookup[b2];
+ }
+ return parseFloat(str);
+ }
+
+ var operands = [];
+ var entries = [];
+
+ pos = 0;
+ var end = dict.length;
+ while (pos < end) {
+ var b = dict[pos];
+ if (b <= 21) {
+ if (b === 12) {
+ b = (b << 8) | dict[++pos];
+ }
+ entries.push([b, operands]);
+ operands = [];
+ ++pos;
+ } else {
+ operands.push(parseOperand());
+ }
+ }
+ return entries;
+ },
+ parseIndex: function CFFParser_parseIndex(pos) {
+ var cffIndex = new CFFIndex();
+ var bytes = this.bytes;
+ var count = (bytes[pos++] << 8) | bytes[pos++];
+ var offsets = [];
+ var end = pos;
+ var i, ii;
+
+ if (count !== 0) {
+ var offsetSize = bytes[pos++];
+ // add 1 for offset to determine size of last object
+ var startPos = pos + ((count + 1) * offsetSize) - 1;
+
+ for (i = 0, ii = count + 1; i < ii; ++i) {
+ var offset = 0;
+ for (var j = 0; j < offsetSize; ++j) {
+ offset <<= 8;
+ offset += bytes[pos++];
+ }
+ offsets.push(startPos + offset);
+ }
+ end = offsets[count];
+ }
+ for (i = 0, ii = offsets.length - 1; i < ii; ++i) {
+ var offsetStart = offsets[i];
+ var offsetEnd = offsets[i + 1];
+ cffIndex.add(bytes.subarray(offsetStart, offsetEnd));
+ }
+ return {obj: cffIndex, endPos: end};
+ },
+ parseNameIndex: function CFFParser_parseNameIndex(index) {
+ var names = [];
+ for (var i = 0, ii = index.count; i < ii; ++i) {
+ var name = index.get(i);
+ // OTS doesn't allow names to be over 127 characters.
+ var length = Math.min(name.length, 127);
+ var data = [];
+ // OTS also only permits certain characters in the name.
+ for (var j = 0; j < length; ++j) {
+ var c = name[j];
+ if (j === 0 && c === 0) {
+ data[j] = c;
+ continue;
+ }
+ if ((c < 33 || c > 126) || c === 91 /* [ */ || c === 93 /* ] */ ||
+ c === 40 /* ( */ || c === 41 /* ) */ || c === 123 /* { */ ||
+ c === 125 /* } */ || c === 60 /* < */ || c === 62 /* > */ ||
+ c === 47 /* / */ || c === 37 /* % */ || c === 35 /* # */) {
+ data[j] = 95;
+ continue;
+ }
+ data[j] = c;
+ }
+ names.push(bytesToString(data));
+ }
+ return names;
+ },
+ parseStringIndex: function CFFParser_parseStringIndex(index) {
+ var strings = new CFFStrings();
+ for (var i = 0, ii = index.count; i < ii; ++i) {
+ var data = index.get(i);
+ strings.add(bytesToString(data));
+ }
+ return strings;
+ },
+ createDict: function CFFParser_createDict(Type, dict, strings) {
+ var cffDict = new Type(strings);
+ for (var i = 0, ii = dict.length; i < ii; ++i) {
+ var pair = dict[i];
+ var key = pair[0];
+ var value = pair[1];
+ cffDict.setByKey(key, value);
+ }
+ return cffDict;
+ },
+ parseCharString: function CFFParser_parseCharString(state, data,
+ localSubrIndex,
+ globalSubrIndex) {
+ if (state.callDepth > MAX_SUBR_NESTING) {
+ return false;
+ }
+ var stackSize = state.stackSize;
+ var stack = state.stack;
+
+ var length = data.length;
+
+ for (var j = 0; j < length;) {
+ var value = data[j++];
+ var validationCommand = null;
+ if (value === 12) {
+ var q = data[j++];
+ if (q === 0) {
+ // The CFF specification state that the 'dotsection' command
+ // (12, 0) is deprecated and treated as a no-op, but all Type2
+ // charstrings processors should support them. Unfortunately
+ // the font sanitizer don't. As a workaround the sequence (12, 0)
+ // is replaced by a useless (0, hmoveto).
+ data[j - 2] = 139;
+ data[j - 1] = 22;
+ stackSize = 0;
+ } else {
+ validationCommand = CharstringValidationData12[q];
+ }
+ } else if (value === 28) { // number (16 bit)
+ stack[stackSize] = ((data[j] << 24) | (data[j + 1] << 16)) >> 16;
+ j += 2;
+ stackSize++;
+ } else if (value === 14) {
+ if (stackSize >= 4) {
+ stackSize -= 4;
+ if (this.seacAnalysisEnabled) {
+ state.seac = stack.slice(stackSize, stackSize + 4);
+ return false;
+ }
+ }
+ validationCommand = CharstringValidationData[value];
+ } else if (value >= 32 && value <= 246) { // number
+ stack[stackSize] = value - 139;
+ stackSize++;
+ } else if (value >= 247 && value <= 254) { // number (+1 bytes)
+ stack[stackSize] = (value < 251 ?
+ ((value - 247) << 8) + data[j] + 108 :
+ -((value - 251) << 8) - data[j] - 108);
+ j++;
+ stackSize++;
+ } else if (value === 255) { // number (32 bit)
+ stack[stackSize] = ((data[j] << 24) | (data[j + 1] << 16) |
+ (data[j + 2] << 8) | data[j + 3]) / 65536;
+ j += 4;
+ stackSize++;
+ } else if (value === 19 || value === 20) {
+ state.hints += stackSize >> 1;
+ // skipping right amount of hints flag data
+ j += (state.hints + 7) >> 3;
+ stackSize %= 2;
+ validationCommand = CharstringValidationData[value];
+ } else if (value === 10 || value === 29) {
+ var subrsIndex;
+ if (value === 10) {
+ subrsIndex = localSubrIndex;
+ } else {
+ subrsIndex = globalSubrIndex;
+ }
+ if (!subrsIndex) {
+ validationCommand = CharstringValidationData[value];
+ warn('Missing subrsIndex for ' + validationCommand.id);
+ return false;
+ }
+ var bias = 32768;
+ if (subrsIndex.count < 1240) {
+ bias = 107;
+ } else if (subrsIndex.count < 33900) {
+ bias = 1131;
+ }
+ var subrNumber = stack[--stackSize] + bias;
+ if (subrNumber < 0 || subrNumber >= subrsIndex.count) {
+ validationCommand = CharstringValidationData[value];
+ warn('Out of bounds subrIndex for ' + validationCommand.id);
+ return false;
+ }
+ state.stackSize = stackSize;
+ state.callDepth++;
+ var valid = this.parseCharString(state, subrsIndex.get(subrNumber),
+ localSubrIndex, globalSubrIndex);
+ if (!valid) {
+ return false;
+ }
+ state.callDepth--;
+ stackSize = state.stackSize;
+ continue;
+ } else if (value === 11) {
+ state.stackSize = stackSize;
+ return true;
+ } else {
+ validationCommand = CharstringValidationData[value];
+ }
+ if (validationCommand) {
+ if (validationCommand.stem) {
+ state.hints += stackSize >> 1;
+ }
+ if ('min' in validationCommand) {
+ if (!state.undefStack && stackSize < validationCommand.min) {
+ warn('Not enough parameters for ' + validationCommand.id +
+ '; actual: ' + stackSize +
+ ', expected: ' + validationCommand.min);
+ return false;
+ }
+ }
+ if (state.firstStackClearing && validationCommand.stackClearing) {
+ state.firstStackClearing = false;
+ // the optional character width can be found before the first
+ // stack-clearing command arguments
+ stackSize -= validationCommand.min;
+ if (stackSize >= 2 && validationCommand.stem) {
+ // there are even amount of arguments for stem commands
+ stackSize %= 2;
+ } else if (stackSize > 1) {
+ warn('Found too many parameters for stack-clearing command');
+ }
+ if (stackSize > 0 && stack[stackSize - 1] >= 0) {
+ state.width = stack[stackSize - 1];
+ }
+ }
+ if ('stackDelta' in validationCommand) {
+ if ('stackFn' in validationCommand) {
+ validationCommand.stackFn(stack, stackSize);
+ }
+ stackSize += validationCommand.stackDelta;
+ } else if (validationCommand.stackClearing) {
+ stackSize = 0;
+ } else if (validationCommand.resetStack) {
+ stackSize = 0;
+ state.undefStack = false;
+ } else if (validationCommand.undefStack) {
+ stackSize = 0;
+ state.undefStack = true;
+ state.firstStackClearing = false;
+ }
+ }
+ }
+ state.stackSize = stackSize;
+ return true;
+ },
+ parseCharStrings: function CFFParser_parseCharStrings(charStrings,
+ localSubrIndex,
+ globalSubrIndex,
+ fdSelect,
+ fdArray) {
+ var seacs = [];
+ var widths = [];
+ var count = charStrings.count;
+ for (var i = 0; i < count; i++) {
+ var charstring = charStrings.get(i);
+ var state = {
+ callDepth: 0,
+ stackSize: 0,
+ stack: [],
+ undefStack: true,
+ hints: 0,
+ firstStackClearing: true,
+ seac: null,
+ width: null
+ };
+ var valid = true;
+ var localSubrToUse = null;
+ if (fdSelect && fdArray.length) {
+ var fdIndex = fdSelect.getFDIndex(i);
+ if (fdIndex === -1) {
+ warn('Glyph index is not in fd select.');
+ valid = false;
+ }
+ if (fdIndex >= fdArray.length) {
+ warn('Invalid fd index for glyph index.');
+ valid = false;
+ }
+ if (valid) {
+ localSubrToUse = fdArray[fdIndex].privateDict.subrsIndex;
+ }
+ } else if (localSubrIndex) {
+ localSubrToUse = localSubrIndex;
+ }
+ if (valid) {
+ valid = this.parseCharString(state, charstring, localSubrToUse,
+ globalSubrIndex);
+ }
+ if (state.width !== null) {
+ widths[i] = state.width;
+ }
+ if (state.seac !== null) {
+ seacs[i] = state.seac;
+ }
+ if (!valid) {
+ // resetting invalid charstring to single 'endchar'
+ charStrings.set(i, new Uint8Array([14]));
+ }
+ }
+ return { charStrings: charStrings, seacs: seacs, widths: widths };
+ },
+ emptyPrivateDictionary:
+ function CFFParser_emptyPrivateDictionary(parentDict) {
+ var privateDict = this.createDict(CFFPrivateDict, [],
+ parentDict.strings);
+ parentDict.setByKey(18, [0, 0]);
+ parentDict.privateDict = privateDict;
+ },
+ parsePrivateDict: function CFFParser_parsePrivateDict(parentDict) {
+ // no private dict, do nothing
+ if (!parentDict.hasName('Private')) {
+ this.emptyPrivateDictionary(parentDict);
+ return;
+ }
+ var privateOffset = parentDict.getByName('Private');
+ // make sure the params are formatted correctly
+ if (!isArray(privateOffset) || privateOffset.length !== 2) {
+ parentDict.removeByName('Private');
+ return;
+ }
+ var size = privateOffset[0];
+ var offset = privateOffset[1];
+ // remove empty dicts or ones that refer to invalid location
+ if (size === 0 || offset >= this.bytes.length) {
+ this.emptyPrivateDictionary(parentDict);
+ return;
+ }
+
+ var privateDictEnd = offset + size;
+ var dictData = this.bytes.subarray(offset, privateDictEnd);
+ var dict = this.parseDict(dictData);
+ var privateDict = this.createDict(CFFPrivateDict, dict,
+ parentDict.strings);
+ parentDict.privateDict = privateDict;
+
+ // Parse the Subrs index also since it's relative to the private dict.
+ if (!privateDict.getByName('Subrs')) {
+ return;
+ }
+ var subrsOffset = privateDict.getByName('Subrs');
+ var relativeOffset = offset + subrsOffset;
+ // Validate the offset.
+ if (subrsOffset === 0 || relativeOffset >= this.bytes.length) {
+ this.emptyPrivateDictionary(parentDict);
+ return;
+ }
+ var subrsIndex = this.parseIndex(relativeOffset);
+ privateDict.subrsIndex = subrsIndex.obj;
+ },
+ parseCharsets: function CFFParser_parseCharsets(pos, length, strings, cid) {
+ if (pos === 0) {
+ return new CFFCharset(true, CFFCharsetPredefinedTypes.ISO_ADOBE,
+ ISOAdobeCharset);
+ } else if (pos === 1) {
+ return new CFFCharset(true, CFFCharsetPredefinedTypes.EXPERT,
+ ExpertCharset);
+ } else if (pos === 2) {
+ return new CFFCharset(true, CFFCharsetPredefinedTypes.EXPERT_SUBSET,
+ ExpertSubsetCharset);
+ }
+
+ var bytes = this.bytes;
+ var start = pos;
+ var format = bytes[pos++];
+ var charset = ['.notdef'];
+ var id, count, i;
+
+ // subtract 1 for the .notdef glyph
+ length -= 1;
+
+ switch (format) {
+ case 0:
+ for (i = 0; i < length; i++) {
+ id = (bytes[pos++] << 8) | bytes[pos++];
+ charset.push(cid ? id : strings.get(id));
+ }
+ break;
+ case 1:
+ while (charset.length <= length) {
+ id = (bytes[pos++] << 8) | bytes[pos++];
+ count = bytes[pos++];
+ for (i = 0; i <= count; i++) {
+ charset.push(cid ? id++ : strings.get(id++));
+ }
+ }
+ break;
+ case 2:
+ while (charset.length <= length) {
+ id = (bytes[pos++] << 8) | bytes[pos++];
+ count = (bytes[pos++] << 8) | bytes[pos++];
+ for (i = 0; i <= count; i++) {
+ charset.push(cid ? id++ : strings.get(id++));
+ }
+ }
+ break;
+ default:
+ error('Unknown charset format');
+ }
+ // Raw won't be needed if we actually compile the charset.
+ var end = pos;
+ var raw = bytes.subarray(start, end);
+
+ return new CFFCharset(false, format, charset, raw);
+ },
+ parseEncoding: function CFFParser_parseEncoding(pos,
+ properties,
+ strings,
+ charset) {
+ var encoding = Object.create(null);
+ var bytes = this.bytes;
+ var predefined = false;
+ var hasSupplement = false;
+ var format, i, ii;
+ var raw = null;
+
+ function readSupplement() {
+ var supplementsCount = bytes[pos++];
+ for (i = 0; i < supplementsCount; i++) {
+ var code = bytes[pos++];
+ var sid = (bytes[pos++] << 8) + (bytes[pos++] & 0xff);
+ encoding[code] = charset.indexOf(strings.get(sid));
+ }
+ }
+
+ if (pos === 0 || pos === 1) {
+ predefined = true;
+ format = pos;
+ var baseEncoding = pos ? ExpertEncoding : StandardEncoding;
+ for (i = 0, ii = charset.length; i < ii; i++) {
+ var index = baseEncoding.indexOf(charset[i]);
+ if (index !== -1) {
+ encoding[index] = i;
+ }
+ }
+ } else {
+ var dataStart = pos;
+ format = bytes[pos++];
+ switch (format & 0x7f) {
+ case 0:
+ var glyphsCount = bytes[pos++];
+ for (i = 1; i <= glyphsCount; i++) {
+ encoding[bytes[pos++]] = i;
+ }
+ break;
+
+ case 1:
+ var rangesCount = bytes[pos++];
+ var gid = 1;
+ for (i = 0; i < rangesCount; i++) {
+ var start = bytes[pos++];
+ var left = bytes[pos++];
+ for (var j = start; j <= start + left; j++) {
+ encoding[j] = gid++;
+ }
+ }
+ break;
+
+ default:
+ error('Unknow encoding format: ' + format + ' in CFF');
+ break;
+ }
+ var dataEnd = pos;
+ if (format & 0x80) {
+ // The font sanitizer does not support CFF encoding with a
+ // supplement, since the encoding is not really used to map
+ // between gid to glyph, let's overwrite what is declared in
+ // the top dictionary to let the sanitizer think the font use
+ // StandardEncoding, that's a lie but that's ok.
+ bytes[dataStart] &= 0x7f;
+ readSupplement();
+ hasSupplement = true;
+ }
+ raw = bytes.subarray(dataStart, dataEnd);
+ }
+ format = format & 0x7f;
+ return new CFFEncoding(predefined, format, encoding, raw);
+ },
+ parseFDSelect: function CFFParser_parseFDSelect(pos, length) {
+ var start = pos;
+ var bytes = this.bytes;
+ var format = bytes[pos++];
+ var fdSelect = [];
+ var i;
+
+ switch (format) {
+ case 0:
+ for (i = 0; i < length; ++i) {
+ var id = bytes[pos++];
+ fdSelect.push(id);
+ }
+ break;
+ case 3:
+ var rangesCount = (bytes[pos++] << 8) | bytes[pos++];
+ for (i = 0; i < rangesCount; ++i) {
+ var first = (bytes[pos++] << 8) | bytes[pos++];
+ var fdIndex = bytes[pos++];
+ var next = (bytes[pos] << 8) | bytes[pos + 1];
+ for (var j = first; j < next; ++j) {
+ fdSelect.push(fdIndex);
+ }
+ }
+ // Advance past the sentinel(next).
+ pos += 2;
+ break;
+ default:
+ error('Unknown fdselect format ' + format);
+ break;
+ }
+ var end = pos;
+ return new CFFFDSelect(fdSelect, bytes.subarray(start, end));
+ }
+ };
+ return CFFParser;
+})();
+
+// Compact Font Format
+var CFF = (function CFFClosure() {
+ function CFF() {
+ this.header = null;
+ this.names = [];
+ this.topDict = null;
+ this.strings = new CFFStrings();
+ this.globalSubrIndex = null;
+
+ // The following could really be per font, but since we only have one font
+ // store them here.
+ this.encoding = null;
+ this.charset = null;
+ this.charStrings = null;
+ this.fdArray = [];
+ this.fdSelect = null;
+
+ this.isCIDFont = false;
+ }
+ return CFF;
+})();
+
+var CFFHeader = (function CFFHeaderClosure() {
+ function CFFHeader(major, minor, hdrSize, offSize) {
+ this.major = major;
+ this.minor = minor;
+ this.hdrSize = hdrSize;
+ this.offSize = offSize;
+ }
+ return CFFHeader;
+})();
+
+var CFFStrings = (function CFFStringsClosure() {
+ function CFFStrings() {
+ this.strings = [];
+ }
+ CFFStrings.prototype = {
+ get: function CFFStrings_get(index) {
+ if (index >= 0 && index <= 390) {
+ return CFFStandardStrings[index];
+ }
+ if (index - 391 <= this.strings.length) {
+ return this.strings[index - 391];
+ }
+ return CFFStandardStrings[0];
+ },
+ add: function CFFStrings_add(value) {
+ this.strings.push(value);
+ },
+ get count() {
+ return this.strings.length;
+ }
+ };
+ return CFFStrings;
+})();
+
+var CFFIndex = (function CFFIndexClosure() {
+ function CFFIndex() {
+ this.objects = [];
+ this.length = 0;
+ }
+ CFFIndex.prototype = {
+ add: function CFFIndex_add(data) {
+ this.length += data.length;
+ this.objects.push(data);
+ },
+ set: function CFFIndex_set(index, data) {
+ this.length += data.length - this.objects[index].length;
+ this.objects[index] = data;
+ },
+ get: function CFFIndex_get(index) {
+ return this.objects[index];
+ },
+ get count() {
+ return this.objects.length;
+ }
+ };
+ return CFFIndex;
+})();
+
+var CFFDict = (function CFFDictClosure() {
+ function CFFDict(tables, strings) {
+ this.keyToNameMap = tables.keyToNameMap;
+ this.nameToKeyMap = tables.nameToKeyMap;
+ this.defaults = tables.defaults;
+ this.types = tables.types;
+ this.opcodes = tables.opcodes;
+ this.order = tables.order;
+ this.strings = strings;
+ this.values = Object.create(null);
+ }
+ CFFDict.prototype = {
+ // value should always be an array
+ setByKey: function CFFDict_setByKey(key, value) {
+ if (!(key in this.keyToNameMap)) {
+ return false;
+ }
+ // ignore empty values
+ if (value.length === 0) {
+ return true;
+ }
+ var type = this.types[key];
+ // remove the array wrapping these types of values
+ if (type === 'num' || type === 'sid' || type === 'offset') {
+ value = value[0];
+ }
+ this.values[key] = value;
+ return true;
+ },
+ setByName: function CFFDict_setByName(name, value) {
+ if (!(name in this.nameToKeyMap)) {
+ error('Invalid dictionary name "' + name + '"');
+ }
+ this.values[this.nameToKeyMap[name]] = value;
+ },
+ hasName: function CFFDict_hasName(name) {
+ return this.nameToKeyMap[name] in this.values;
+ },
+ getByName: function CFFDict_getByName(name) {
+ if (!(name in this.nameToKeyMap)) {
+ error('Invalid dictionary name "' + name + '"');
+ }
+ var key = this.nameToKeyMap[name];
+ if (!(key in this.values)) {
+ return this.defaults[key];
+ }
+ return this.values[key];
+ },
+ removeByName: function CFFDict_removeByName(name) {
+ delete this.values[this.nameToKeyMap[name]];
+ }
+ };
+ CFFDict.createTables = function CFFDict_createTables(layout) {
+ var tables = {
+ keyToNameMap: {},
+ nameToKeyMap: {},
+ defaults: {},
+ types: {},
+ opcodes: {},
+ order: []
+ };
+ for (var i = 0, ii = layout.length; i < ii; ++i) {
+ var entry = layout[i];
+ var key = isArray(entry[0]) ? (entry[0][0] << 8) + entry[0][1] : entry[0];
+ tables.keyToNameMap[key] = entry[1];
+ tables.nameToKeyMap[entry[1]] = key;
+ tables.types[key] = entry[2];
+ tables.defaults[key] = entry[3];
+ tables.opcodes[key] = isArray(entry[0]) ? entry[0] : [entry[0]];
+ tables.order.push(key);
+ }
+ return tables;
+ };
+ return CFFDict;
+})();
+
+var CFFTopDict = (function CFFTopDictClosure() {
+ var layout = [
+ [[12, 30], 'ROS', ['sid', 'sid', 'num'], null],
+ [[12, 20], 'SyntheticBase', 'num', null],
+ [0, 'version', 'sid', null],
+ [1, 'Notice', 'sid', null],
+ [[12, 0], 'Copyright', 'sid', null],
+ [2, 'FullName', 'sid', null],
+ [3, 'FamilyName', 'sid', null],
+ [4, 'Weight', 'sid', null],
+ [[12, 1], 'isFixedPitch', 'num', 0],
+ [[12, 2], 'ItalicAngle', 'num', 0],
+ [[12, 3], 'UnderlinePosition', 'num', -100],
+ [[12, 4], 'UnderlineThickness', 'num', 50],
+ [[12, 5], 'PaintType', 'num', 0],
+ [[12, 6], 'CharstringType', 'num', 2],
+ [[12, 7], 'FontMatrix', ['num', 'num', 'num', 'num', 'num', 'num'],
+ [0.001, 0, 0, 0.001, 0, 0]],
+ [13, 'UniqueID', 'num', null],
+ [5, 'FontBBox', ['num', 'num', 'num', 'num'], [0, 0, 0, 0]],
+ [[12, 8], 'StrokeWidth', 'num', 0],
+ [14, 'XUID', 'array', null],
+ [15, 'charset', 'offset', 0],
+ [16, 'Encoding', 'offset', 0],
+ [17, 'CharStrings', 'offset', 0],
+ [18, 'Private', ['offset', 'offset'], null],
+ [[12, 21], 'PostScript', 'sid', null],
+ [[12, 22], 'BaseFontName', 'sid', null],
+ [[12, 23], 'BaseFontBlend', 'delta', null],
+ [[12, 31], 'CIDFontVersion', 'num', 0],
+ [[12, 32], 'CIDFontRevision', 'num', 0],
+ [[12, 33], 'CIDFontType', 'num', 0],
+ [[12, 34], 'CIDCount', 'num', 8720],
+ [[12, 35], 'UIDBase', 'num', null],
+ // XXX: CID Fonts on DirectWrite 6.1 only seem to work if FDSelect comes
+ // before FDArray.
+ [[12, 37], 'FDSelect', 'offset', null],
+ [[12, 36], 'FDArray', 'offset', null],
+ [[12, 38], 'FontName', 'sid', null]
+ ];
+ var tables = null;
+ function CFFTopDict(strings) {
+ if (tables === null) {
+ tables = CFFDict.createTables(layout);
+ }
+ CFFDict.call(this, tables, strings);
+ this.privateDict = null;
+ }
+ CFFTopDict.prototype = Object.create(CFFDict.prototype);
+ return CFFTopDict;
+})();
+
+var CFFPrivateDict = (function CFFPrivateDictClosure() {
+ var layout = [
+ [6, 'BlueValues', 'delta', null],
+ [7, 'OtherBlues', 'delta', null],
+ [8, 'FamilyBlues', 'delta', null],
+ [9, 'FamilyOtherBlues', 'delta', null],
+ [[12, 9], 'BlueScale', 'num', 0.039625],
+ [[12, 10], 'BlueShift', 'num', 7],
+ [[12, 11], 'BlueFuzz', 'num', 1],
+ [10, 'StdHW', 'num', null],
+ [11, 'StdVW', 'num', null],
+ [[12, 12], 'StemSnapH', 'delta', null],
+ [[12, 13], 'StemSnapV', 'delta', null],
+ [[12, 14], 'ForceBold', 'num', 0],
+ [[12, 17], 'LanguageGroup', 'num', 0],
+ [[12, 18], 'ExpansionFactor', 'num', 0.06],
+ [[12, 19], 'initialRandomSeed', 'num', 0],
+ [20, 'defaultWidthX', 'num', 0],
+ [21, 'nominalWidthX', 'num', 0],
+ [19, 'Subrs', 'offset', null]
+ ];
+ var tables = null;
+ function CFFPrivateDict(strings) {
+ if (tables === null) {
+ tables = CFFDict.createTables(layout);
+ }
+ CFFDict.call(this, tables, strings);
+ this.subrsIndex = null;
+ }
+ CFFPrivateDict.prototype = Object.create(CFFDict.prototype);
+ return CFFPrivateDict;
+})();
+
+var CFFCharsetPredefinedTypes = {
+ ISO_ADOBE: 0,
+ EXPERT: 1,
+ EXPERT_SUBSET: 2
+};
+var CFFCharset = (function CFFCharsetClosure() {
+ function CFFCharset(predefined, format, charset, raw) {
+ this.predefined = predefined;
+ this.format = format;
+ this.charset = charset;
+ this.raw = raw;
+ }
+ return CFFCharset;
+})();
+
+var CFFEncoding = (function CFFEncodingClosure() {
+ function CFFEncoding(predefined, format, encoding, raw) {
+ this.predefined = predefined;
+ this.format = format;
+ this.encoding = encoding;
+ this.raw = raw;
+ }
+ return CFFEncoding;
+})();
+
+var CFFFDSelect = (function CFFFDSelectClosure() {
+ function CFFFDSelect(fdSelect, raw) {
+ this.fdSelect = fdSelect;
+ this.raw = raw;
+ }
+ CFFFDSelect.prototype = {
+ getFDIndex: function CFFFDSelect_get(glyphIndex) {
+ if (glyphIndex < 0 || glyphIndex >= this.fdSelect.length) {
+ return -1;
+ }
+ return this.fdSelect[glyphIndex];
+ }
+ };
+ return CFFFDSelect;
+})();
+
+// Helper class to keep track of where an offset is within the data and helps
+// filling in that offset once it's known.
+var CFFOffsetTracker = (function CFFOffsetTrackerClosure() {
+ function CFFOffsetTracker() {
+ this.offsets = Object.create(null);
+ }
+ CFFOffsetTracker.prototype = {
+ isTracking: function CFFOffsetTracker_isTracking(key) {
+ return key in this.offsets;
+ },
+ track: function CFFOffsetTracker_track(key, location) {
+ if (key in this.offsets) {
+ error('Already tracking location of ' + key);
+ }
+ this.offsets[key] = location;
+ },
+ offset: function CFFOffsetTracker_offset(value) {
+ for (var key in this.offsets) {
+ this.offsets[key] += value;
+ }
+ },
+ setEntryLocation: function CFFOffsetTracker_setEntryLocation(key,
+ values,
+ output) {
+ if (!(key in this.offsets)) {
+ error('Not tracking location of ' + key);
+ }
+ var data = output.data;
+ var dataOffset = this.offsets[key];
+ var size = 5;
+ for (var i = 0, ii = values.length; i < ii; ++i) {
+ var offset0 = i * size + dataOffset;
+ var offset1 = offset0 + 1;
+ var offset2 = offset0 + 2;
+ var offset3 = offset0 + 3;
+ var offset4 = offset0 + 4;
+ // It's easy to screw up offsets so perform this sanity check.
+ if (data[offset0] !== 0x1d || data[offset1] !== 0 ||
+ data[offset2] !== 0 || data[offset3] !== 0 || data[offset4] !== 0) {
+ error('writing to an offset that is not empty');
+ }
+ var value = values[i];
+ data[offset0] = 0x1d;
+ data[offset1] = (value >> 24) & 0xFF;
+ data[offset2] = (value >> 16) & 0xFF;
+ data[offset3] = (value >> 8) & 0xFF;
+ data[offset4] = value & 0xFF;
+ }
+ }
+ };
+ return CFFOffsetTracker;
+})();
+
+// Takes a CFF and converts it to the binary representation.
+var CFFCompiler = (function CFFCompilerClosure() {
+ function CFFCompiler(cff) {
+ this.cff = cff;
+ }
+ CFFCompiler.prototype = {
+ compile: function CFFCompiler_compile() {
+ var cff = this.cff;
+ var output = {
+ data: [],
+ length: 0,
+ add: function CFFCompiler_add(data) {
+ this.data = this.data.concat(data);
+ this.length = this.data.length;
+ }
+ };
+
+ // Compile the five entries that must be in order.
+ var header = this.compileHeader(cff.header);
+ output.add(header);
+
+ var nameIndex = this.compileNameIndex(cff.names);
+ output.add(nameIndex);
+
+ if (cff.isCIDFont) {
+ // The spec is unclear on how font matrices should relate to each other
+ // when there is one in the main top dict and the sub top dicts.
+ // Windows handles this differently than linux and osx so we have to
+ // normalize to work on all.
+ // Rules based off of some mailing list discussions:
+ // - If main font has a matrix and subfont doesn't, use the main matrix.
+ // - If no main font matrix and there is a subfont matrix, use the
+ // subfont matrix.
+ // - If both have matrices, concat together.
+ // - If neither have matrices, use default.
+ // To make this work on all platforms we move the top matrix into each
+ // sub top dict and concat if necessary.
+ if (cff.topDict.hasName('FontMatrix')) {
+ var base = cff.topDict.getByName('FontMatrix');
+ cff.topDict.removeByName('FontMatrix');
+ for (var i = 0, ii = cff.fdArray.length; i < ii; i++) {
+ var subDict = cff.fdArray[i];
+ var matrix = base.slice(0);
+ if (subDict.hasName('FontMatrix')) {
+ matrix = Util.transform(matrix, subDict.getByName('FontMatrix'));
+ }
+ subDict.setByName('FontMatrix', matrix);
+ }
+ }
+ }
+
+ var compiled = this.compileTopDicts([cff.topDict],
+ output.length,
+ cff.isCIDFont);
+ output.add(compiled.output);
+ var topDictTracker = compiled.trackers[0];
+
+ var stringIndex = this.compileStringIndex(cff.strings.strings);
+ output.add(stringIndex);
+
+ var globalSubrIndex = this.compileIndex(cff.globalSubrIndex);
+ output.add(globalSubrIndex);
+
+ // Now start on the other entries that have no specfic order.
+ if (cff.encoding && cff.topDict.hasName('Encoding')) {
+ if (cff.encoding.predefined) {
+ topDictTracker.setEntryLocation('Encoding', [cff.encoding.format],
+ output);
+ } else {
+ var encoding = this.compileEncoding(cff.encoding);
+ topDictTracker.setEntryLocation('Encoding', [output.length], output);
+ output.add(encoding);
+ }
+ }
+
+ if (cff.charset && cff.topDict.hasName('charset')) {
+ if (cff.charset.predefined) {
+ topDictTracker.setEntryLocation('charset', [cff.charset.format],
+ output);
+ } else {
+ var charset = this.compileCharset(cff.charset);
+ topDictTracker.setEntryLocation('charset', [output.length], output);
+ output.add(charset);
+ }
+ }
+
+ var charStrings = this.compileCharStrings(cff.charStrings);
+ topDictTracker.setEntryLocation('CharStrings', [output.length], output);
+ output.add(charStrings);
+
+ if (cff.isCIDFont) {
+ // For some reason FDSelect must be in front of FDArray on windows. OSX
+ // and linux don't seem to care.
+ topDictTracker.setEntryLocation('FDSelect', [output.length], output);
+ var fdSelect = this.compileFDSelect(cff.fdSelect.raw);
+ output.add(fdSelect);
+ // It is unclear if the sub font dictionary can have CID related
+ // dictionary keys, but the sanitizer doesn't like them so remove them.
+ compiled = this.compileTopDicts(cff.fdArray, output.length, true);
+ topDictTracker.setEntryLocation('FDArray', [output.length], output);
+ output.add(compiled.output);
+ var fontDictTrackers = compiled.trackers;
+
+ this.compilePrivateDicts(cff.fdArray, fontDictTrackers, output);
+ }
+
+ this.compilePrivateDicts([cff.topDict], [topDictTracker], output);
+
+ // If the font data ends with INDEX whose object data is zero-length,
+ // the sanitizer will bail out. Add a dummy byte to avoid that.
+ output.add([0]);
+
+ return output.data;
+ },
+ encodeNumber: function CFFCompiler_encodeNumber(value) {
+ if (parseFloat(value) === parseInt(value, 10) && !isNaN(value)) { // isInt
+ return this.encodeInteger(value);
+ } else {
+ return this.encodeFloat(value);
+ }
+ },
+ encodeFloat: function CFFCompiler_encodeFloat(num) {
+ var value = num.toString();
+
+ // rounding inaccurate doubles
+ var m = /\.(\d*?)(?:9{5,20}|0{5,20})\d{0,2}(?:e(.+)|$)/.exec(value);
+ if (m) {
+ var epsilon = parseFloat('1e' + ((m[2] ? +m[2] : 0) + m[1].length));
+ value = (Math.round(num * epsilon) / epsilon).toString();
+ }
+
+ var nibbles = '';
+ var i, ii;
+ for (i = 0, ii = value.length; i < ii; ++i) {
+ var a = value[i];
+ if (a === 'e') {
+ nibbles += value[++i] === '-' ? 'c' : 'b';
+ } else if (a === '.') {
+ nibbles += 'a';
+ } else if (a === '-') {
+ nibbles += 'e';
+ } else {
+ nibbles += a;
+ }
+ }
+ nibbles += (nibbles.length & 1) ? 'f' : 'ff';
+ var out = [30];
+ for (i = 0, ii = nibbles.length; i < ii; i += 2) {
+ out.push(parseInt(nibbles.substr(i, 2), 16));
+ }
+ return out;
+ },
+ encodeInteger: function CFFCompiler_encodeInteger(value) {
+ var code;
+ if (value >= -107 && value <= 107) {
+ code = [value + 139];
+ } else if (value >= 108 && value <= 1131) {
+ value = [value - 108];
+ code = [(value >> 8) + 247, value & 0xFF];
+ } else if (value >= -1131 && value <= -108) {
+ value = -value - 108;
+ code = [(value >> 8) + 251, value & 0xFF];
+ } else if (value >= -32768 && value <= 32767) {
+ code = [0x1c, (value >> 8) & 0xFF, value & 0xFF];
+ } else {
+ code = [0x1d,
+ (value >> 24) & 0xFF,
+ (value >> 16) & 0xFF,
+ (value >> 8) & 0xFF,
+ value & 0xFF];
+ }
+ return code;
+ },
+ compileHeader: function CFFCompiler_compileHeader(header) {
+ return [
+ header.major,
+ header.minor,
+ header.hdrSize,
+ header.offSize
+ ];
+ },
+ compileNameIndex: function CFFCompiler_compileNameIndex(names) {
+ var nameIndex = new CFFIndex();
+ for (var i = 0, ii = names.length; i < ii; ++i) {
+ nameIndex.add(stringToBytes(names[i]));
+ }
+ return this.compileIndex(nameIndex);
+ },
+ compileTopDicts: function CFFCompiler_compileTopDicts(dicts,
+ length,
+ removeCidKeys) {
+ var fontDictTrackers = [];
+ var fdArrayIndex = new CFFIndex();
+ for (var i = 0, ii = dicts.length; i < ii; ++i) {
+ var fontDict = dicts[i];
+ if (removeCidKeys) {
+ fontDict.removeByName('CIDFontVersion');
+ fontDict.removeByName('CIDFontRevision');
+ fontDict.removeByName('CIDFontType');
+ fontDict.removeByName('CIDCount');
+ fontDict.removeByName('UIDBase');
+ }
+ var fontDictTracker = new CFFOffsetTracker();
+ var fontDictData = this.compileDict(fontDict, fontDictTracker);
+ fontDictTrackers.push(fontDictTracker);
+ fdArrayIndex.add(fontDictData);
+ fontDictTracker.offset(length);
+ }
+ fdArrayIndex = this.compileIndex(fdArrayIndex, fontDictTrackers);
+ return {
+ trackers: fontDictTrackers,
+ output: fdArrayIndex
+ };
+ },
+ compilePrivateDicts: function CFFCompiler_compilePrivateDicts(dicts,
+ trackers,
+ output) {
+ for (var i = 0, ii = dicts.length; i < ii; ++i) {
+ var fontDict = dicts[i];
+ assert(fontDict.privateDict && fontDict.hasName('Private'),
+ 'There must be an private dictionary.');
+ var privateDict = fontDict.privateDict;
+ var privateDictTracker = new CFFOffsetTracker();
+ var privateDictData = this.compileDict(privateDict, privateDictTracker);
+
+ var outputLength = output.length;
+ privateDictTracker.offset(outputLength);
+ if (!privateDictData.length) {
+ // The private dictionary was empty, set the output length to zero to
+ // ensure the offset length isn't out of bounds in the eyes of the
+ // sanitizer.
+ outputLength = 0;
+ }
+
+ trackers[i].setEntryLocation('Private',
+ [privateDictData.length, outputLength],
+ output);
+ output.add(privateDictData);
+
+ if (privateDict.subrsIndex && privateDict.hasName('Subrs')) {
+ var subrs = this.compileIndex(privateDict.subrsIndex);
+ privateDictTracker.setEntryLocation('Subrs', [privateDictData.length],
+ output);
+ output.add(subrs);
+ }
+ }
+ },
+ compileDict: function CFFCompiler_compileDict(dict, offsetTracker) {
+ var out = [];
+ // The dictionary keys must be in a certain order.
+ var order = dict.order;
+ for (var i = 0; i < order.length; ++i) {
+ var key = order[i];
+ if (!(key in dict.values)) {
+ continue;
+ }
+ var values = dict.values[key];
+ var types = dict.types[key];
+ if (!isArray(types)) {
+ types = [types];
+ }
+ if (!isArray(values)) {
+ values = [values];
+ }
+
+ // Remove any empty dict values.
+ if (values.length === 0) {
+ continue;
+ }
+
+ for (var j = 0, jj = types.length; j < jj; ++j) {
+ var type = types[j];
+ var value = values[j];
+ switch (type) {
+ case 'num':
+ case 'sid':
+ out = out.concat(this.encodeNumber(value));
+ break;
+ case 'offset':
+ // For offsets we just insert a 32bit integer so we don't have to
+ // deal with figuring out the length of the offset when it gets
+ // replaced later on by the compiler.
+ var name = dict.keyToNameMap[key];
+ // Some offsets have the offset and the length, so just record the
+ // position of the first one.
+ if (!offsetTracker.isTracking(name)) {
+ offsetTracker.track(name, out.length);
+ }
+ out = out.concat([0x1d, 0, 0, 0, 0]);
+ break;
+ case 'array':
+ case 'delta':
+ out = out.concat(this.encodeNumber(value));
+ for (var k = 1, kk = values.length; k < kk; ++k) {
+ out = out.concat(this.encodeNumber(values[k]));
+ }
+ break;
+ default:
+ error('Unknown data type of ' + type);
+ break;
+ }
+ }
+ out = out.concat(dict.opcodes[key]);
+ }
+ return out;
+ },
+ compileStringIndex: function CFFCompiler_compileStringIndex(strings) {
+ var stringIndex = new CFFIndex();
+ for (var i = 0, ii = strings.length; i < ii; ++i) {
+ stringIndex.add(stringToBytes(strings[i]));
+ }
+ return this.compileIndex(stringIndex);
+ },
+ compileGlobalSubrIndex: function CFFCompiler_compileGlobalSubrIndex() {
+ var globalSubrIndex = this.cff.globalSubrIndex;
+ this.out.writeByteArray(this.compileIndex(globalSubrIndex));
+ },
+ compileCharStrings: function CFFCompiler_compileCharStrings(charStrings) {
+ return this.compileIndex(charStrings);
+ },
+ compileCharset: function CFFCompiler_compileCharset(charset) {
+ return this.compileTypedArray(charset.raw);
+ },
+ compileEncoding: function CFFCompiler_compileEncoding(encoding) {
+ return this.compileTypedArray(encoding.raw);
+ },
+ compileFDSelect: function CFFCompiler_compileFDSelect(fdSelect) {
+ return this.compileTypedArray(fdSelect);
+ },
+ compileTypedArray: function CFFCompiler_compileTypedArray(data) {
+ var out = [];
+ for (var i = 0, ii = data.length; i < ii; ++i) {
+ out[i] = data[i];
+ }
+ return out;
+ },
+ compileIndex: function CFFCompiler_compileIndex(index, trackers) {
+ trackers = trackers || [];
+ var objects = index.objects;
+ // First 2 bytes contains the number of objects contained into this index
+ var count = objects.length;
+
+ // If there is no object, just create an index. This technically
+ // should just be [0, 0] but OTS has an issue with that.
+ if (count === 0) {
+ return [0, 0, 0];
+ }
+
+ var data = [(count >> 8) & 0xFF, count & 0xff];
+
+ var lastOffset = 1, i;
+ for (i = 0; i < count; ++i) {
+ lastOffset += objects[i].length;
+ }
+
+ var offsetSize;
+ if (lastOffset < 0x100) {
+ offsetSize = 1;
+ } else if (lastOffset < 0x10000) {
+ offsetSize = 2;
+ } else if (lastOffset < 0x1000000) {
+ offsetSize = 3;
+ } else {
+ offsetSize = 4;
+ }
+
+ // Next byte contains the offset size use to reference object in the file
+ data.push(offsetSize);
+
+ // Add another offset after this one because we need a new offset
+ var relativeOffset = 1;
+ for (i = 0; i < count + 1; i++) {
+ if (offsetSize === 1) {
+ data.push(relativeOffset & 0xFF);
+ } else if (offsetSize === 2) {
+ data.push((relativeOffset >> 8) & 0xFF,
+ relativeOffset & 0xFF);
+ } else if (offsetSize === 3) {
+ data.push((relativeOffset >> 16) & 0xFF,
+ (relativeOffset >> 8) & 0xFF,
+ relativeOffset & 0xFF);
+ } else {
+ data.push((relativeOffset >>> 24) & 0xFF,
+ (relativeOffset >> 16) & 0xFF,
+ (relativeOffset >> 8) & 0xFF,
+ relativeOffset & 0xFF);
+ }
+
+ if (objects[i]) {
+ relativeOffset += objects[i].length;
+ }
+ }
+
+ for (i = 0; i < count; i++) {
+ // Notify the tracker where the object will be offset in the data.
+ if (trackers[i]) {
+ trackers[i].offset(data.length);
+ }
+ for (var j = 0, jj = objects[i].length; j < jj; j++) {
+ data.push(objects[i][j]);
+ }
+ }
+ return data;
+ }
+ };
+ return CFFCompiler;
+})();
+
+exports.CFFStandardStrings = CFFStandardStrings;
+exports.CFFParser = CFFParser;
+exports.CFF = CFF;
+exports.CFFHeader = CFFHeader;
+exports.CFFStrings = CFFStrings;
+exports.CFFIndex = CFFIndex;
+exports.CFFCharset = CFFCharset;
+exports.CFFTopDict = CFFTopDict;
+exports.CFFPrivateDict = CFFPrivateDict;
+exports.CFFCompiler = CFFCompiler;
+}));
diff --git a/src/core/font_renderer.js b/src/core/font_renderer.js
index 729282c..f57fdf6 100644
--- a/src/core/font_renderer.js
+++ b/src/core/font_renderer.js
@@ -17,17 +17,19 @@
(function (root, factory) {
if (typeof define === 'function' && define.amd) {
define('pdfjs/core/font_renderer', ['exports', 'pdfjs/shared/util',
- 'pdfjs/core/stream', 'pdfjs/core/glyphlist', 'pdfjs/core/encodings'],
- factory);
+ 'pdfjs/core/stream', 'pdfjs/core/glyphlist', 'pdfjs/core/encodings',
+ 'pdfjs/core/cff_parser'], factory);
} else if (typeof exports !== 'undefined') {
factory(exports, require('../shared/util.js'), require('./stream.js'),
- require('./glyphlist.js'), require('./encodings.js'));
+ require('./glyphlist.js'), require('./encodings.js'),
+ require('./cff_parser.js'));
} else {
factory((root.pdfjsCoreFontRenderer = {}), root.pdfjsSharedUtil,
- root.pdfjsCoreStream, root.pdfjsCoreGlyphList, root.pdfjsCoreEncodings);
+ root.pdfjsCoreStream, root.pdfjsCoreGlyphList, root.pdfjsCoreEncodings,
+ root.pdfjsCoreCFFParser);
}
}(this, function (exports, sharedUtil, coreStream, coreGlyphList,
- coreEncodings) {
+ coreEncodings, coreCFFParser) {
var Util = sharedUtil.Util;
var bytesToString = sharedUtil.bytesToString;
@@ -35,9 +37,7 @@ var error = sharedUtil.error;
var Stream = coreStream.Stream;
var getGlyphsUnicode = coreGlyphList.getGlyphsUnicode;
var StandardEncoding = coreEncodings.StandardEncoding;
-
-var coreFonts; // see _setCoreFonts below
-var CFFParser; // = coreFonts.CFFParser;
+var CFFParser = coreCFFParser.CFFParser;
var FontRendererFactory = (function FontRendererFactoryClosure() {
function getLong(data, offset) {
@@ -99,10 +99,10 @@ var FontRendererFactory = (function FontRendererFactoryClosure() {
error('not supported cmap: ' + format);
}
- function parseCff(data, start, end) {
+ function parseCff(data, start, end, seacAnalysisEnabled) {
var properties = {};
var parser = new CFFParser(new Stream(data, start, end - start),
- properties);
+ properties, seacAnalysisEnabled);
var cff = parser.parse();
return {
glyphs: cff.charStrings.objects,
@@ -696,7 +696,7 @@ var FontRendererFactory = (function FontRendererFactoryClosure() {
return {
- create: function FontRendererFactory_create(font) {
+ create: function FontRendererFactory_create(font, seacAnalysisEnabled) {
var data = new Uint8Array(font.data);
var cmap, glyf, loca, cff, indexToLocFormat, unitsPerEm;
var numTables = getUshort(data, 4);
@@ -719,7 +719,7 @@ var FontRendererFactory = (function FontRendererFactoryClosure() {
indexToLocFormat = getUshort(data, offset + 50);
break;
case 'CFF ':
- cff = parseCff(data, offset, offset + length);
+ cff = parseCff(data, offset, offset + length, seacAnalysisEnabled);
break;
}
}
@@ -736,13 +736,5 @@ var FontRendererFactory = (function FontRendererFactoryClosure() {
};
})();
-
-// TODO refactor to remove cyclic dependency on fonts.js
-function _setCoreFonts(coreFonts_) {
- coreFonts = coreFonts_;
- CFFParser = coreFonts_.CFFParser;
-}
-exports._setCoreFonts = _setCoreFonts;
-
exports.FontRendererFactory = FontRendererFactory;
}));
diff --git a/src/core/fonts.js b/src/core/fonts.js
index 660f681..78df52e 100644
--- a/src/core/fonts.js
+++ b/src/core/fonts.js
@@ -21,23 +21,27 @@
'pdfjs/core/primitives', 'pdfjs/core/stream', 'pdfjs/core/parser',
'pdfjs/core/glyphlist', 'pdfjs/core/charsets',
'pdfjs/core/font_renderer', 'pdfjs/core/encodings',
- 'pdfjs/core/standard_fonts', 'pdfjs/core/unicode'], factory);
+ 'pdfjs/core/standard_fonts', 'pdfjs/core/unicode',
+ 'pdfjs/core/cff_parser'], factory);
} else if (typeof exports !== 'undefined') {
factory(exports, require('../shared/util.js'), require('./primitives.js'),
require('./stream.js'), require('./parser.js'),
require('./glyphlist.js'), require('./charsets.js'),
require('./font_renderer.js'), require('./encodings.js'),
- require('./standard_fonts'), require('./unicode.js'));
+ require('./standard_fonts'), require('./unicode.js'),
+ require('./cff_parser'));
} else {
factory((root.pdfjsCoreFonts = {}), root.pdfjsSharedUtil,
root.pdfjsCorePrimitives, root.pdfjsCoreStream, root.pdfjsCoreParser,
root.pdfjsCoreGlyphList, root.pdfjsCoreCharsets,
root.pdfjsCoreFontRenderer, root.pdfjsCoreEncodings,
- root.pdfjsCoreStandardFonts, root.pdfjsCoreUnicode);
+ root.pdfjsCoreStandardFonts, root.pdfjsCoreUnicode,
+ root.pdfjsCoreCFFParser);
}
}(this, function (exports, sharedUtil, corePrimitives, coreStream, coreParser,
coreGlyphList, coreCharsets, coreFontRenderer,
- coreEncodings, coreStandardFonts, coreUnicode) {
+ coreEncodings, coreStandardFonts, coreUnicode,
+ coreCFFParser) {
var FONT_IDENTITY_MATRIX = sharedUtil.FONT_IDENTITY_MATRIX;
var FontType = sharedUtil.FontType;
@@ -78,6 +82,16 @@ var getSupplementalGlyphMapForArialBlack =
var getUnicodeRangeFor = coreUnicode.getUnicodeRangeFor;
var mapSpecialUnicodeValues = coreUnicode.mapSpecialUnicodeValues;
var getUnicodeForGlyph = coreUnicode.getUnicodeForGlyph;
+var CFFStandardStrings = coreCFFParser.CFFStandardStrings;
+var CFFParser = coreCFFParser.CFFParser;
+var CFFCompiler = coreCFFParser.CFFCompiler;
+var CFF = coreCFFParser.CFF;
+var CFFHeader = coreCFFParser.CFFHeader;
+var CFFTopDict = coreCFFParser.CFFTopDict;
+var CFFPrivateDict = coreCFFParser.CFFPrivateDict;
+var CFFStrings = coreCFFParser.CFFStrings;
+var CFFIndex = coreCFFParser.CFFIndex;
+var CFFCharset = coreCFFParser.CFFCharset;
// Unicode Private Use Area
var PRIVATE_USE_OFFSET_START = 0xE000;
@@ -92,13 +106,10 @@ var PDF_GLYPH_SPACE_UNITS = 1000;
// in tracemonkey and various other pdfs with type1 fonts.
var HINTING_ENABLED = false;
-// Accented charactars are not displayed properly on windows, using this flag
+// Accented charactars are not displayed properly on Windows, using this flag
// to control analysis of seac charstrings.
var SEAC_ANALYSIS_ENABLED = false;
-// Maximum subroutine call depth of type 2 chartrings. Matches OTS.
-var MAX_SUBR_NESTING = 10;
-
var FontFlags = {
FixedPitch: 1,
Serif: 2,
@@ -1206,7 +1217,7 @@ var Font = (function FontClosure() {
mimetype: null,
encoding: null,
get renderer() {
- var renderer = FontRendererFactory.create(this);
+ var renderer = FontRendererFactory.create(this, SEAC_ANALYSIS_ENABLED);
return shadow(this, 'renderer', renderer);
},
@@ -2454,7 +2465,8 @@ var Font = (function FontClosure() {
try {
// Trying to repair CFF file
cffFile = new Stream(tables['CFF '].data);
- var parser = new CFFParser(cffFile, properties);
+ var parser = new CFFParser(cffFile, properties,
+ SEAC_ANALYSIS_ENABLED);
cff = parser.parse();
var compiler = new CFFCompiler(cff);
tables['CFF '].data = compiler.compile();
@@ -3548,78 +3560,6 @@ var Type1Parser = (function Type1ParserClosure() {
return Type1Parser;
})();
-/**
- * The CFF class takes a Type1 file and wrap it into a
- * 'Compact Font Format' which itself embed Type2 charstrings.
- */
-var CFFStandardStrings = [
- '.notdef', 'space', 'exclam', 'quotedbl', 'numbersign', 'dollar', 'percent',
- 'ampersand', 'quoteright', 'parenleft', 'parenright', 'asterisk', 'plus',
- 'comma', 'hyphen', 'period', 'slash', 'zero', 'one', 'two', 'three', 'four',
- 'five', 'six', 'seven', 'eight', 'nine', 'colon', 'semicolon', 'less',
- 'equal', 'greater', 'question', 'at', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
- 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
- 'X', 'Y', 'Z', 'bracketleft', 'backslash', 'bracketright', 'asciicircum',
- 'underscore', 'quoteleft', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
- 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y',
- 'z', 'braceleft', 'bar', 'braceright', 'asciitilde', 'exclamdown', 'cent',
- 'sterling', 'fraction', 'yen', 'florin', 'section', 'currency',
- 'quotesingle', 'quotedblleft', 'guillemotleft', 'guilsinglleft',
- 'guilsinglright', 'fi', 'fl', 'endash', 'dagger', 'daggerdbl',
- 'periodcentered', 'paragraph', 'bullet', 'quotesinglbase', 'quotedblbase',
- 'quotedblright', 'guillemotright', 'ellipsis', 'perthousand', 'questiondown',
- 'grave', 'acute', 'circumflex', 'tilde', 'macron', 'breve', 'dotaccent',
- 'dieresis', 'ring', 'cedilla', 'hungarumlaut', 'ogonek', 'caron', 'emdash',
- 'AE', 'ordfeminine', 'Lslash', 'Oslash', 'OE', 'ordmasculine', 'ae',
- 'dotlessi', 'lslash', 'oslash', 'oe', 'germandbls', 'onesuperior',
- 'logicalnot', 'mu', 'trademark', 'Eth', 'onehalf', 'plusminus', 'Thorn',
- 'onequarter', 'divide', 'brokenbar', 'degree', 'thorn', 'threequarters',
- 'twosuperior', 'registered', 'minus', 'eth', 'multiply', 'threesuperior',
- 'copyright', 'Aacute', 'Acircumflex', 'Adieresis', 'Agrave', 'Aring',
- 'Atilde', 'Ccedilla', 'Eacute', 'Ecircumflex', 'Edieresis', 'Egrave',
- 'Iacute', 'Icircumflex', 'Idieresis', 'Igrave', 'Ntilde', 'Oacute',
- 'Ocircumflex', 'Odieresis', 'Ograve', 'Otilde', 'Scaron', 'Uacute',
- 'Ucircumflex', 'Udieresis', 'Ugrave', 'Yacute', 'Ydieresis', 'Zcaron',
- 'aacute', 'acircumflex', 'adieresis', 'agrave', 'aring', 'atilde',
- 'ccedilla', 'eacute', 'ecircumflex', 'edieresis', 'egrave', 'iacute',
- 'icircumflex', 'idieresis', 'igrave', 'ntilde', 'oacute', 'ocircumflex',
- 'odieresis', 'ograve', 'otilde', 'scaron', 'uacute', 'ucircumflex',
- 'udieresis', 'ugrave', 'yacute', 'ydieresis', 'zcaron', 'exclamsmall',
- 'Hungarumlautsmall', 'dollaroldstyle', 'dollarsuperior', 'ampersandsmall',
- 'Acutesmall', 'parenleftsuperior', 'parenrightsuperior', 'twodotenleader',
- 'onedotenleader', 'zerooldstyle', 'oneoldstyle', 'twooldstyle',
- 'threeoldstyle', 'fouroldstyle', 'fiveoldstyle', 'sixoldstyle',
- 'sevenoldstyle', 'eightoldstyle', 'nineoldstyle', 'commasuperior',
- 'threequartersemdash', 'periodsuperior', 'questionsmall', 'asuperior',
- 'bsuperior', 'centsuperior', 'dsuperior', 'esuperior', 'isuperior',
- 'lsuperior', 'msuperior', 'nsuperior', 'osuperior', 'rsuperior', 'ssuperior',
- 'tsuperior', 'ff', 'ffi', 'ffl', 'parenleftinferior', 'parenrightinferior',
- 'Circumflexsmall', 'hyphensuperior', 'Gravesmall', 'Asmall', 'Bsmall',
- 'Csmall', 'Dsmall', 'Esmall', 'Fsmall', 'Gsmall', 'Hsmall', 'Ismall',
- 'Jsmall', 'Ksmall', 'Lsmall', 'Msmall', 'Nsmall', 'Osmall', 'Psmall',
- 'Qsmall', 'Rsmall', 'Ssmall', 'Tsmall', 'Usmall', 'Vsmall', 'Wsmall',
- 'Xsmall', 'Ysmall', 'Zsmall', 'colonmonetary', 'onefitted', 'rupiah',
- 'Tildesmall', 'exclamdownsmall', 'centoldstyle', 'Lslashsmall',
- 'Scaronsmall', 'Zcaronsmall', 'Dieresissmall', 'Brevesmall', 'Caronsmall',
- 'Dotaccentsmall', 'Macronsmall', 'figuredash', 'hypheninferior',
- 'Ogoneksmall', 'Ringsmall', 'Cedillasmall', 'questiondownsmall', 'oneeighth',
- 'threeeighths', 'fiveeighths', 'seveneighths', 'onethird', 'twothirds',
- 'zerosuperior', 'foursuperior', 'fivesuperior', 'sixsuperior',
- 'sevensuperior', 'eightsuperior', 'ninesuperior', 'zeroinferior',
- 'oneinferior', 'twoinferior', 'threeinferior', 'fourinferior',
- 'fiveinferior', 'sixinferior', 'seveninferior', 'eightinferior',
- 'nineinferior', 'centinferior', 'dollarinferior', 'periodinferior',
- 'commainferior', 'Agravesmall', 'Aacutesmall', 'Acircumflexsmall',
- 'Atildesmall', 'Adieresissmall', 'Aringsmall', 'AEsmall', 'Ccedillasmall',
- 'Egravesmall', 'Eacutesmall', 'Ecircumflexsmall', 'Edieresissmall',
- 'Igravesmall', 'Iacutesmall', 'Icircumflexsmall', 'Idieresissmall',
- 'Ethsmall', 'Ntildesmall', 'Ogravesmall', 'Oacutesmall', 'Ocircumflexsmall',
- 'Otildesmall', 'Odieresissmall', 'OEsmall', 'Oslashsmall', 'Ugravesmall',
- 'Uacutesmall', 'Ucircumflexsmall', 'Udieresissmall', 'Yacutesmall',
- 'Thornsmall', 'Ydieresissmall', '001.000', '001.001', '001.002', '001.003',
- 'Black', 'Bold', 'Book', 'Light', 'Medium', 'Regular', 'Roman', 'Semibold'
-];
-
// Type1Font is also a CIDFontType0.
var Type1Font = (function Type1FontClosure() {
function findBlock(streamBytes, signature, startIndex) {
@@ -3972,7 +3912,7 @@ var CFFFont = (function CFFFontClosure() {
function CFFFont(file, properties) {
this.properties = properties;
- var parser = new CFFParser(file, properties);
+ var parser = new CFFParser(file, properties, SEAC_ANALYSIS_ENABLED);
this.cff = parser.parse();
var compiler = new CFFCompiler(this.cff);
this.seacs = this.cff.seacs;
@@ -4029,1524 +3969,6 @@ var CFFFont = (function CFFFontClosure() {
return CFFFont;
})();
-var CFFParser = (function CFFParserClosure() {
- var CharstringValidationData = [
- null,
- { id: 'hstem', min: 2, stackClearing: true, stem: true },
- null,
- { id: 'vstem', min: 2, stackClearing: true, stem: true },
- { id: 'vmoveto', min: 1, stackClearing: true },
- { id: 'rlineto', min: 2, resetStack: true },
- { id: 'hlineto', min: 1, resetStack: true },
- { id: 'vlineto', min: 1, resetStack: true },
- { id: 'rrcurveto', min: 6, resetStack: true },
- null,
- { id: 'callsubr', min: 1, undefStack: true },
- { id: 'return', min: 0, undefStack: true },
- null, // 12
- null,
- { id: 'endchar', min: 0, stackClearing: true },
- null,
- null,
- null,
- { id: 'hstemhm', min: 2, stackClearing: true, stem: true },
- { id: 'hintmask', min: 0, stackClearing: true },
- { id: 'cntrmask', min: 0, stackClearing: true },
- { id: 'rmoveto', min: 2, stackClearing: true },
- { id: 'hmoveto', min: 1, stackClearing: true },
- { id: 'vstemhm', min: 2, stackClearing: true, stem: true },
- { id: 'rcurveline', min: 8, resetStack: true },
- { id: 'rlinecurve', min: 8, resetStack: true },
- { id: 'vvcurveto', min: 4, resetStack: true },
- { id: 'hhcurveto', min: 4, resetStack: true },
- null, // shortint
- { id: 'callgsubr', min: 1, undefStack: true },
- { id: 'vhcurveto', min: 4, resetStack: true },
- { id: 'hvcurveto', min: 4, resetStack: true }
- ];
- var CharstringValidationData12 = [
- null,
- null,
- null,
- { id: 'and', min: 2, stackDelta: -1 },
- { id: 'or', min: 2, stackDelta: -1 },
- { id: 'not', min: 1, stackDelta: 0 },
- null,
- null,
- null,
- { id: 'abs', min: 1, stackDelta: 0 },
- { id: 'add', min: 2, stackDelta: -1,
- stackFn: function stack_div(stack, index) {
- stack[index - 2] = stack[index - 2] + stack[index - 1];
- }
- },
- { id: 'sub', min: 2, stackDelta: -1,
- stackFn: function stack_div(stack, index) {
- stack[index - 2] = stack[index - 2] - stack[index - 1];
- }
- },
- { id: 'div', min: 2, stackDelta: -1,
- stackFn: function stack_div(stack, index) {
- stack[index - 2] = stack[index - 2] / stack[index - 1];
- }
- },
- null,
- { id: 'neg', min: 1, stackDelta: 0,
- stackFn: function stack_div(stack, index) {
- stack[index - 1] = -stack[index - 1];
- }
- },
- { id: 'eq', min: 2, stackDelta: -1 },
- null,
- null,
- { id: 'drop', min: 1, stackDelta: -1 },
- null,
- { id: 'put', min: 2, stackDelta: -2 },
- { id: 'get', min: 1, stackDelta: 0 },
- { id: 'ifelse', min: 4, stackDelta: -3 },
- { id: 'random', min: 0, stackDelta: 1 },
- { id: 'mul', min: 2, stackDelta: -1,
- stackFn: function stack_div(stack, index) {
- stack[index - 2] = stack[index - 2] * stack[index - 1];
- }
- },
- null,
- { id: 'sqrt', min: 1, stackDelta: 0 },
- { id: 'dup', min: 1, stackDelta: 1 },
- { id: 'exch', min: 2, stackDelta: 0 },
- { id: 'index', min: 2, stackDelta: 0 },
- { id: 'roll', min: 3, stackDelta: -2 },
- null,
- null,
- null,
- { id: 'hflex', min: 7, resetStack: true },
- { id: 'flex', min: 13, resetStack: true },
- { id: 'hflex1', min: 9, resetStack: true },
- { id: 'flex1', min: 11, resetStack: true }
- ];
-
- function CFFParser(file, properties) {
- this.bytes = file.getBytes();
- this.properties = properties;
- }
- CFFParser.prototype = {
- parse: function CFFParser_parse() {
- var properties = this.properties;
- var cff = new CFF();
- this.cff = cff;
-
- // The first five sections must be in order, all the others are reached
- // via offsets contained in one of the below.
- var header = this.parseHeader();
- var nameIndex = this.parseIndex(header.endPos);
- var topDictIndex = this.parseIndex(nameIndex.endPos);
- var stringIndex = this.parseIndex(topDictIndex.endPos);
- var globalSubrIndex = this.parseIndex(stringIndex.endPos);
-
- var topDictParsed = this.parseDict(topDictIndex.obj.get(0));
- var topDict = this.createDict(CFFTopDict, topDictParsed, cff.strings);
-
- cff.header = header.obj;
- cff.names = this.parseNameIndex(nameIndex.obj);
- cff.strings = this.parseStringIndex(stringIndex.obj);
- cff.topDict = topDict;
- cff.globalSubrIndex = globalSubrIndex.obj;
-
- this.parsePrivateDict(cff.topDict);
-
- cff.isCIDFont = topDict.hasName('ROS');
-
- var charStringOffset = topDict.getByName('CharStrings');
- var charStringIndex = this.parseIndex(charStringOffset).obj;
-
- var fontMatrix = topDict.getByName('FontMatrix');
- if (fontMatrix) {
- properties.fontMatrix = fontMatrix;
- }
-
- var fontBBox = topDict.getByName('FontBBox');
- if (fontBBox) {
- // adjusting ascent/descent
- properties.ascent = fontBBox[3];
- properties.descent = fontBBox[1];
- properties.ascentScaled = true;
- }
-
- var charset, encoding;
- if (cff.isCIDFont) {
- var fdArrayIndex = this.parseIndex(topDict.getByName('FDArray')).obj;
- for (var i = 0, ii = fdArrayIndex.count; i < ii; ++i) {
- var dictRaw = fdArrayIndex.get(i);
- var fontDict = this.createDict(CFFTopDict, this.parseDict(dictRaw),
- cff.strings);
- this.parsePrivateDict(fontDict);
- cff.fdArray.push(fontDict);
- }
- // cid fonts don't have an encoding
- encoding = null;
- charset = this.parseCharsets(topDict.getByName('charset'),
- charStringIndex.count, cff.strings, true);
- cff.fdSelect = this.parseFDSelect(topDict.getByName('FDSelect'),
- charStringIndex.count);
- } else {
- charset = this.parseCharsets(topDict.getByName('charset'),
- charStringIndex.count, cff.strings, false);
- encoding = this.parseEncoding(topDict.getByName('Encoding'),
- properties,
- cff.strings, charset.charset);
- }
-
- cff.charset = charset;
- cff.encoding = encoding;
-
- var charStringsAndSeacs = this.parseCharStrings(
- charStringIndex,
- topDict.privateDict.subrsIndex,
- globalSubrIndex.obj,
- cff.fdSelect,
- cff.fdArray);
- cff.charStrings = charStringsAndSeacs.charStrings;
- cff.seacs = charStringsAndSeacs.seacs;
- cff.widths = charStringsAndSeacs.widths;
-
- return cff;
- },
- parseHeader: function CFFParser_parseHeader() {
- var bytes = this.bytes;
- var bytesLength = bytes.length;
- var offset = 0;
-
- // Prevent an infinite loop, by checking that the offset is within the
- // bounds of the bytes array. Necessary in empty, or invalid, font files.
- while (offset < bytesLength && bytes[offset] !== 1) {
- ++offset;
- }
- if (offset >= bytesLength) {
- error('Invalid CFF header');
- } else if (offset !== 0) {
- info('cff data is shifted');
- bytes = bytes.subarray(offset);
- this.bytes = bytes;
- }
- var major = bytes[0];
- var minor = bytes[1];
- var hdrSize = bytes[2];
- var offSize = bytes[3];
- var header = new CFFHeader(major, minor, hdrSize, offSize);
- return { obj: header, endPos: hdrSize };
- },
- parseDict: function CFFParser_parseDict(dict) {
- var pos = 0;
-
- function parseOperand() {
- var value = dict[pos++];
- if (value === 30) {
- return parseFloatOperand(pos);
- } else if (value === 28) {
- value = dict[pos++];
- value = ((value << 24) | (dict[pos++] << 16)) >> 16;
- return value;
- } else if (value === 29) {
- value = dict[pos++];
- value = (value << 8) | dict[pos++];
- value = (value << 8) | dict[pos++];
- value = (value << 8) | dict[pos++];
- return value;
- } else if (value >= 32 && value <= 246) {
- return value - 139;
- } else if (value >= 247 && value <= 250) {
- return ((value - 247) * 256) + dict[pos++] + 108;
- } else if (value >= 251 && value <= 254) {
- return -((value - 251) * 256) - dict[pos++] - 108;
- } else {
- error('255 is not a valid DICT command');
- }
- return -1;
- }
-
- function parseFloatOperand() {
- var str = '';
- var eof = 15;
- var lookup = ['0', '1', '2', '3', '4', '5', '6', '7', '8',
- '9', '.', 'E', 'E-', null, '-'];
- var length = dict.length;
- while (pos < length) {
- var b = dict[pos++];
- var b1 = b >> 4;
- var b2 = b & 15;
-
- if (b1 === eof) {
- break;
- }
- str += lookup[b1];
-
- if (b2 === eof) {
- break;
- }
- str += lookup[b2];
- }
- return parseFloat(str);
- }
-
- var operands = [];
- var entries = [];
-
- pos = 0;
- var end = dict.length;
- while (pos < end) {
- var b = dict[pos];
- if (b <= 21) {
- if (b === 12) {
- b = (b << 8) | dict[++pos];
- }
- entries.push([b, operands]);
- operands = [];
- ++pos;
- } else {
- operands.push(parseOperand());
- }
- }
- return entries;
- },
- parseIndex: function CFFParser_parseIndex(pos) {
- var cffIndex = new CFFIndex();
- var bytes = this.bytes;
- var count = (bytes[pos++] << 8) | bytes[pos++];
- var offsets = [];
- var end = pos;
- var i, ii;
-
- if (count !== 0) {
- var offsetSize = bytes[pos++];
- // add 1 for offset to determine size of last object
- var startPos = pos + ((count + 1) * offsetSize) - 1;
-
- for (i = 0, ii = count + 1; i < ii; ++i) {
- var offset = 0;
- for (var j = 0; j < offsetSize; ++j) {
- offset <<= 8;
- offset += bytes[pos++];
- }
- offsets.push(startPos + offset);
- }
- end = offsets[count];
- }
- for (i = 0, ii = offsets.length - 1; i < ii; ++i) {
- var offsetStart = offsets[i];
- var offsetEnd = offsets[i + 1];
- cffIndex.add(bytes.subarray(offsetStart, offsetEnd));
- }
- return {obj: cffIndex, endPos: end};
- },
- parseNameIndex: function CFFParser_parseNameIndex(index) {
- var names = [];
- for (var i = 0, ii = index.count; i < ii; ++i) {
- var name = index.get(i);
- // OTS doesn't allow names to be over 127 characters.
- var length = Math.min(name.length, 127);
- var data = [];
- // OTS also only permits certain characters in the name.
- for (var j = 0; j < length; ++j) {
- var c = name[j];
- if (j === 0 && c === 0) {
- data[j] = c;
- continue;
- }
- if ((c < 33 || c > 126) || c === 91 /* [ */ || c === 93 /* ] */ ||
- c === 40 /* ( */ || c === 41 /* ) */ || c === 123 /* { */ ||
- c === 125 /* } */ || c === 60 /* < */ || c === 62 /* > */ ||
- c === 47 /* / */ || c === 37 /* % */ || c === 35 /* # */) {
- data[j] = 95;
- continue;
- }
- data[j] = c;
- }
- names.push(bytesToString(data));
- }
- return names;
- },
- parseStringIndex: function CFFParser_parseStringIndex(index) {
- var strings = new CFFStrings();
- for (var i = 0, ii = index.count; i < ii; ++i) {
- var data = index.get(i);
- strings.add(bytesToString(data));
- }
- return strings;
- },
- createDict: function CFFParser_createDict(Type, dict, strings) {
- var cffDict = new Type(strings);
- for (var i = 0, ii = dict.length; i < ii; ++i) {
- var pair = dict[i];
- var key = pair[0];
- var value = pair[1];
- cffDict.setByKey(key, value);
- }
- return cffDict;
- },
- parseCharString: function CFFParser_parseCharString(state, data,
- localSubrIndex,
- globalSubrIndex) {
- if (state.callDepth > MAX_SUBR_NESTING) {
- return false;
- }
- var stackSize = state.stackSize;
- var stack = state.stack;
-
- var length = data.length;
-
- for (var j = 0; j < length;) {
- var value = data[j++];
- var validationCommand = null;
- if (value === 12) {
- var q = data[j++];
- if (q === 0) {
- // The CFF specification state that the 'dotsection' command
- // (12, 0) is deprecated and treated as a no-op, but all Type2
- // charstrings processors should support them. Unfortunately
- // the font sanitizer don't. As a workaround the sequence (12, 0)
- // is replaced by a useless (0, hmoveto).
- data[j - 2] = 139;
- data[j - 1] = 22;
- stackSize = 0;
- } else {
- validationCommand = CharstringValidationData12[q];
- }
- } else if (value === 28) { // number (16 bit)
- stack[stackSize] = ((data[j] << 24) | (data[j + 1] << 16)) >> 16;
- j += 2;
- stackSize++;
- } else if (value === 14) {
- if (stackSize >= 4) {
- stackSize -= 4;
- if (SEAC_ANALYSIS_ENABLED) {
- state.seac = stack.slice(stackSize, stackSize + 4);
- return false;
- }
- }
- validationCommand = CharstringValidationData[value];
- } else if (value >= 32 && value <= 246) { // number
- stack[stackSize] = value - 139;
- stackSize++;
- } else if (value >= 247 && value <= 254) { // number (+1 bytes)
- stack[stackSize] = (value < 251 ?
- ((value - 247) << 8) + data[j] + 108 :
- -((value - 251) << 8) - data[j] - 108);
- j++;
- stackSize++;
- } else if (value === 255) { // number (32 bit)
- stack[stackSize] = ((data[j] << 24) | (data[j + 1] << 16) |
- (data[j + 2] << 8) | data[j + 3]) / 65536;
- j += 4;
- stackSize++;
- } else if (value === 19 || value === 20) {
- state.hints += stackSize >> 1;
- // skipping right amount of hints flag data
- j += (state.hints + 7) >> 3;
- stackSize %= 2;
- validationCommand = CharstringValidationData[value];
- } else if (value === 10 || value === 29) {
- var subrsIndex;
- if (value === 10) {
- subrsIndex = localSubrIndex;
- } else {
- subrsIndex = globalSubrIndex;
- }
- if (!subrsIndex) {
- validationCommand = CharstringValidationData[value];
- warn('Missing subrsIndex for ' + validationCommand.id);
- return false;
- }
- var bias = 32768;
- if (subrsIndex.count < 1240) {
- bias = 107;
- } else if (subrsIndex.count < 33900) {
- bias = 1131;
- }
- var subrNumber = stack[--stackSize] + bias;
- if (subrNumber < 0 || subrNumber >= subrsIndex.count) {
- validationCommand = CharstringValidationData[value];
- warn('Out of bounds subrIndex for ' + validationCommand.id);
- return false;
- }
- state.stackSize = stackSize;
- state.callDepth++;
- var valid = this.parseCharString(state, subrsIndex.get(subrNumber),
- localSubrIndex, globalSubrIndex);
- if (!valid) {
- return false;
- }
- state.callDepth--;
- stackSize = state.stackSize;
- continue;
- } else if (value === 11) {
- state.stackSize = stackSize;
- return true;
- } else {
- validationCommand = CharstringValidationData[value];
- }
- if (validationCommand) {
- if (validationCommand.stem) {
- state.hints += stackSize >> 1;
- }
- if ('min' in validationCommand) {
- if (!state.undefStack && stackSize < validationCommand.min) {
- warn('Not enough parameters for ' + validationCommand.id +
- '; actual: ' + stackSize +
- ', expected: ' + validationCommand.min);
- return false;
- }
- }
- if (state.firstStackClearing && validationCommand.stackClearing) {
- state.firstStackClearing = false;
- // the optional character width can be found before the first
- // stack-clearing command arguments
- stackSize -= validationCommand.min;
- if (stackSize >= 2 && validationCommand.stem) {
- // there are even amount of arguments for stem commands
- stackSize %= 2;
- } else if (stackSize > 1) {
- warn('Found too many parameters for stack-clearing command');
- }
- if (stackSize > 0 && stack[stackSize - 1] >= 0) {
- state.width = stack[stackSize - 1];
- }
- }
- if ('stackDelta' in validationCommand) {
- if ('stackFn' in validationCommand) {
- validationCommand.stackFn(stack, stackSize);
- }
- stackSize += validationCommand.stackDelta;
- } else if (validationCommand.stackClearing) {
- stackSize = 0;
- } else if (validationCommand.resetStack) {
- stackSize = 0;
- state.undefStack = false;
- } else if (validationCommand.undefStack) {
- stackSize = 0;
- state.undefStack = true;
- state.firstStackClearing = false;
- }
- }
- }
- state.stackSize = stackSize;
- return true;
- },
- parseCharStrings: function CFFParser_parseCharStrings(charStrings,
- localSubrIndex,
- globalSubrIndex,
- fdSelect,
- fdArray) {
- var seacs = [];
- var widths = [];
- var count = charStrings.count;
- for (var i = 0; i < count; i++) {
- var charstring = charStrings.get(i);
- var state = {
- callDepth: 0,
- stackSize: 0,
- stack: [],
- undefStack: true,
- hints: 0,
- firstStackClearing: true,
- seac: null,
- width: null
- };
- var valid = true;
- var localSubrToUse = null;
- if (fdSelect && fdArray.length) {
- var fdIndex = fdSelect.getFDIndex(i);
- if (fdIndex === -1) {
- warn('Glyph index is not in fd select.');
- valid = false;
- }
- if (fdIndex >= fdArray.length) {
- warn('Invalid fd index for glyph index.');
- valid = false;
- }
- if (valid) {
- localSubrToUse = fdArray[fdIndex].privateDict.subrsIndex;
- }
- } else if (localSubrIndex) {
- localSubrToUse = localSubrIndex;
- }
- if (valid) {
- valid = this.parseCharString(state, charstring, localSubrToUse,
- globalSubrIndex);
- }
- if (state.width !== null) {
- widths[i] = state.width;
- }
- if (state.seac !== null) {
- seacs[i] = state.seac;
- }
- if (!valid) {
- // resetting invalid charstring to single 'endchar'
- charStrings.set(i, new Uint8Array([14]));
- }
- }
- return { charStrings: charStrings, seacs: seacs, widths: widths };
- },
- emptyPrivateDictionary:
- function CFFParser_emptyPrivateDictionary(parentDict) {
- var privateDict = this.createDict(CFFPrivateDict, [],
- parentDict.strings);
- parentDict.setByKey(18, [0, 0]);
- parentDict.privateDict = privateDict;
- },
- parsePrivateDict: function CFFParser_parsePrivateDict(parentDict) {
- // no private dict, do nothing
- if (!parentDict.hasName('Private')) {
- this.emptyPrivateDictionary(parentDict);
- return;
- }
- var privateOffset = parentDict.getByName('Private');
- // make sure the params are formatted correctly
- if (!isArray(privateOffset) || privateOffset.length !== 2) {
- parentDict.removeByName('Private');
- return;
- }
- var size = privateOffset[0];
- var offset = privateOffset[1];
- // remove empty dicts or ones that refer to invalid location
- if (size === 0 || offset >= this.bytes.length) {
- this.emptyPrivateDictionary(parentDict);
- return;
- }
-
- var privateDictEnd = offset + size;
- var dictData = this.bytes.subarray(offset, privateDictEnd);
- var dict = this.parseDict(dictData);
- var privateDict = this.createDict(CFFPrivateDict, dict,
- parentDict.strings);
- parentDict.privateDict = privateDict;
-
- // Parse the Subrs index also since it's relative to the private dict.
- if (!privateDict.getByName('Subrs')) {
- return;
- }
- var subrsOffset = privateDict.getByName('Subrs');
- var relativeOffset = offset + subrsOffset;
- // Validate the offset.
- if (subrsOffset === 0 || relativeOffset >= this.bytes.length) {
- this.emptyPrivateDictionary(parentDict);
- return;
- }
- var subrsIndex = this.parseIndex(relativeOffset);
- privateDict.subrsIndex = subrsIndex.obj;
- },
- parseCharsets: function CFFParser_parseCharsets(pos, length, strings, cid) {
- if (pos === 0) {
- return new CFFCharset(true, CFFCharsetPredefinedTypes.ISO_ADOBE,
- ISOAdobeCharset);
- } else if (pos === 1) {
- return new CFFCharset(true, CFFCharsetPredefinedTypes.EXPERT,
- ExpertCharset);
- } else if (pos === 2) {
- return new CFFCharset(true, CFFCharsetPredefinedTypes.EXPERT_SUBSET,
- ExpertSubsetCharset);
- }
-
- var bytes = this.bytes;
- var start = pos;
- var format = bytes[pos++];
- var charset = ['.notdef'];
- var id, count, i;
-
- // subtract 1 for the .notdef glyph
- length -= 1;
-
- switch (format) {
- case 0:
- for (i = 0; i < length; i++) {
- id = (bytes[pos++] << 8) | bytes[pos++];
- charset.push(cid ? id : strings.get(id));
- }
- break;
- case 1:
- while (charset.length <= length) {
- id = (bytes[pos++] << 8) | bytes[pos++];
- count = bytes[pos++];
- for (i = 0; i <= count; i++) {
- charset.push(cid ? id++ : strings.get(id++));
- }
- }
- break;
- case 2:
- while (charset.length <= length) {
- id = (bytes[pos++] << 8) | bytes[pos++];
- count = (bytes[pos++] << 8) | bytes[pos++];
- for (i = 0; i <= count; i++) {
- charset.push(cid ? id++ : strings.get(id++));
- }
- }
- break;
- default:
- error('Unknown charset format');
- }
- // Raw won't be needed if we actually compile the charset.
- var end = pos;
- var raw = bytes.subarray(start, end);
-
- return new CFFCharset(false, format, charset, raw);
- },
- parseEncoding: function CFFParser_parseEncoding(pos,
- properties,
- strings,
- charset) {
- var encoding = Object.create(null);
- var bytes = this.bytes;
- var predefined = false;
- var hasSupplement = false;
- var format, i, ii;
- var raw = null;
-
- function readSupplement() {
- var supplementsCount = bytes[pos++];
- for (i = 0; i < supplementsCount; i++) {
- var code = bytes[pos++];
- var sid = (bytes[pos++] << 8) + (bytes[pos++] & 0xff);
- encoding[code] = charset.indexOf(strings.get(sid));
- }
- }
-
- if (pos === 0 || pos === 1) {
- predefined = true;
- format = pos;
- var baseEncoding = pos ? ExpertEncoding : StandardEncoding;
- for (i = 0, ii = charset.length; i < ii; i++) {
- var index = baseEncoding.indexOf(charset[i]);
- if (index !== -1) {
- encoding[index] = i;
- }
- }
- } else {
- var dataStart = pos;
- format = bytes[pos++];
- switch (format & 0x7f) {
- case 0:
- var glyphsCount = bytes[pos++];
- for (i = 1; i <= glyphsCount; i++) {
- encoding[bytes[pos++]] = i;
- }
- break;
-
- case 1:
- var rangesCount = bytes[pos++];
- var gid = 1;
- for (i = 0; i < rangesCount; i++) {
- var start = bytes[pos++];
- var left = bytes[pos++];
- for (var j = start; j <= start + left; j++) {
- encoding[j] = gid++;
- }
- }
- break;
-
- default:
- error('Unknow encoding format: ' + format + ' in CFF');
- break;
- }
- var dataEnd = pos;
- if (format & 0x80) {
- // The font sanitizer does not support CFF encoding with a
- // supplement, since the encoding is not really used to map
- // between gid to glyph, let's overwrite what is declared in
- // the top dictionary to let the sanitizer think the font use
- // StandardEncoding, that's a lie but that's ok.
- bytes[dataStart] &= 0x7f;
- readSupplement();
- hasSupplement = true;
- }
- raw = bytes.subarray(dataStart, dataEnd);
- }
- format = format & 0x7f;
- return new CFFEncoding(predefined, format, encoding, raw);
- },
- parseFDSelect: function CFFParser_parseFDSelect(pos, length) {
- var start = pos;
- var bytes = this.bytes;
- var format = bytes[pos++];
- var fdSelect = [];
- var i;
-
- switch (format) {
- case 0:
- for (i = 0; i < length; ++i) {
- var id = bytes[pos++];
- fdSelect.push(id);
- }
- break;
- case 3:
- var rangesCount = (bytes[pos++] << 8) | bytes[pos++];
- for (i = 0; i < rangesCount; ++i) {
- var first = (bytes[pos++] << 8) | bytes[pos++];
- var fdIndex = bytes[pos++];
- var next = (bytes[pos] << 8) | bytes[pos + 1];
- for (var j = first; j < next; ++j) {
- fdSelect.push(fdIndex);
- }
- }
- // Advance past the sentinel(next).
- pos += 2;
- break;
- default:
- error('Unknown fdselect format ' + format);
- break;
- }
- var end = pos;
- return new CFFFDSelect(fdSelect, bytes.subarray(start, end));
- }
- };
- return CFFParser;
-})();
-
-// Compact Font Format
-var CFF = (function CFFClosure() {
- function CFF() {
- this.header = null;
- this.names = [];
- this.topDict = null;
- this.strings = new CFFStrings();
- this.globalSubrIndex = null;
-
- // The following could really be per font, but since we only have one font
- // store them here.
- this.encoding = null;
- this.charset = null;
- this.charStrings = null;
- this.fdArray = [];
- this.fdSelect = null;
-
- this.isCIDFont = false;
- }
- return CFF;
-})();
-
-var CFFHeader = (function CFFHeaderClosure() {
- function CFFHeader(major, minor, hdrSize, offSize) {
- this.major = major;
- this.minor = minor;
- this.hdrSize = hdrSize;
- this.offSize = offSize;
- }
- return CFFHeader;
-})();
-
-var CFFStrings = (function CFFStringsClosure() {
- function CFFStrings() {
- this.strings = [];
- }
- CFFStrings.prototype = {
- get: function CFFStrings_get(index) {
- if (index >= 0 && index <= 390) {
- return CFFStandardStrings[index];
- }
- if (index - 391 <= this.strings.length) {
- return this.strings[index - 391];
- }
- return CFFStandardStrings[0];
- },
- add: function CFFStrings_add(value) {
- this.strings.push(value);
- },
- get count() {
- return this.strings.length;
- }
- };
- return CFFStrings;
-})();
-
-var CFFIndex = (function CFFIndexClosure() {
- function CFFIndex() {
- this.objects = [];
- this.length = 0;
- }
- CFFIndex.prototype = {
- add: function CFFIndex_add(data) {
- this.length += data.length;
- this.objects.push(data);
- },
- set: function CFFIndex_set(index, data) {
- this.length += data.length - this.objects[index].length;
- this.objects[index] = data;
- },
- get: function CFFIndex_get(index) {
- return this.objects[index];
- },
- get count() {
- return this.objects.length;
- }
- };
- return CFFIndex;
-})();
-
-var CFFDict = (function CFFDictClosure() {
- function CFFDict(tables, strings) {
- this.keyToNameMap = tables.keyToNameMap;
- this.nameToKeyMap = tables.nameToKeyMap;
- this.defaults = tables.defaults;
- this.types = tables.types;
- this.opcodes = tables.opcodes;
- this.order = tables.order;
- this.strings = strings;
- this.values = Object.create(null);
- }
- CFFDict.prototype = {
- // value should always be an array
- setByKey: function CFFDict_setByKey(key, value) {
- if (!(key in this.keyToNameMap)) {
- return false;
- }
- // ignore empty values
- if (value.length === 0) {
- return true;
- }
- var type = this.types[key];
- // remove the array wrapping these types of values
- if (type === 'num' || type === 'sid' || type === 'offset') {
- value = value[0];
- }
- this.values[key] = value;
- return true;
- },
- setByName: function CFFDict_setByName(name, value) {
- if (!(name in this.nameToKeyMap)) {
- error('Invalid dictionary name "' + name + '"');
- }
- this.values[this.nameToKeyMap[name]] = value;
- },
- hasName: function CFFDict_hasName(name) {
- return this.nameToKeyMap[name] in this.values;
- },
- getByName: function CFFDict_getByName(name) {
- if (!(name in this.nameToKeyMap)) {
- error('Invalid dictionary name "' + name + '"');
- }
- var key = this.nameToKeyMap[name];
- if (!(key in this.values)) {
- return this.defaults[key];
- }
- return this.values[key];
- },
- removeByName: function CFFDict_removeByName(name) {
- delete this.values[this.nameToKeyMap[name]];
- }
- };
- CFFDict.createTables = function CFFDict_createTables(layout) {
- var tables = {
- keyToNameMap: {},
- nameToKeyMap: {},
- defaults: {},
- types: {},
- opcodes: {},
- order: []
- };
- for (var i = 0, ii = layout.length; i < ii; ++i) {
- var entry = layout[i];
- var key = isArray(entry[0]) ? (entry[0][0] << 8) + entry[0][1] : entry[0];
- tables.keyToNameMap[key] = entry[1];
- tables.nameToKeyMap[entry[1]] = key;
- tables.types[key] = entry[2];
- tables.defaults[key] = entry[3];
- tables.opcodes[key] = isArray(entry[0]) ? entry[0] : [entry[0]];
- tables.order.push(key);
- }
- return tables;
- };
- return CFFDict;
-})();
-
-var CFFTopDict = (function CFFTopDictClosure() {
- var layout = [
- [[12, 30], 'ROS', ['sid', 'sid', 'num'], null],
- [[12, 20], 'SyntheticBase', 'num', null],
- [0, 'version', 'sid', null],
- [1, 'Notice', 'sid', null],
- [[12, 0], 'Copyright', 'sid', null],
- [2, 'FullName', 'sid', null],
- [3, 'FamilyName', 'sid', null],
- [4, 'Weight', 'sid', null],
- [[12, 1], 'isFixedPitch', 'num', 0],
- [[12, 2], 'ItalicAngle', 'num', 0],
- [[12, 3], 'UnderlinePosition', 'num', -100],
- [[12, 4], 'UnderlineThickness', 'num', 50],
- [[12, 5], 'PaintType', 'num', 0],
- [[12, 6], 'CharstringType', 'num', 2],
- [[12, 7], 'FontMatrix', ['num', 'num', 'num', 'num', 'num', 'num'],
- [0.001, 0, 0, 0.001, 0, 0]],
- [13, 'UniqueID', 'num', null],
- [5, 'FontBBox', ['num', 'num', 'num', 'num'], [0, 0, 0, 0]],
- [[12, 8], 'StrokeWidth', 'num', 0],
- [14, 'XUID', 'array', null],
- [15, 'charset', 'offset', 0],
- [16, 'Encoding', 'offset', 0],
- [17, 'CharStrings', 'offset', 0],
- [18, 'Private', ['offset', 'offset'], null],
- [[12, 21], 'PostScript', 'sid', null],
- [[12, 22], 'BaseFontName', 'sid', null],
- [[12, 23], 'BaseFontBlend', 'delta', null],
- [[12, 31], 'CIDFontVersion', 'num', 0],
- [[12, 32], 'CIDFontRevision', 'num', 0],
- [[12, 33], 'CIDFontType', 'num', 0],
- [[12, 34], 'CIDCount', 'num', 8720],
- [[12, 35], 'UIDBase', 'num', null],
- // XXX: CID Fonts on DirectWrite 6.1 only seem to work if FDSelect comes
- // before FDArray.
- [[12, 37], 'FDSelect', 'offset', null],
- [[12, 36], 'FDArray', 'offset', null],
- [[12, 38], 'FontName', 'sid', null]
- ];
- var tables = null;
- function CFFTopDict(strings) {
- if (tables === null) {
- tables = CFFDict.createTables(layout);
- }
- CFFDict.call(this, tables, strings);
- this.privateDict = null;
- }
- CFFTopDict.prototype = Object.create(CFFDict.prototype);
- return CFFTopDict;
-})();
-
-var CFFPrivateDict = (function CFFPrivateDictClosure() {
- var layout = [
- [6, 'BlueValues', 'delta', null],
- [7, 'OtherBlues', 'delta', null],
- [8, 'FamilyBlues', 'delta', null],
- [9, 'FamilyOtherBlues', 'delta', null],
- [[12, 9], 'BlueScale', 'num', 0.039625],
- [[12, 10], 'BlueShift', 'num', 7],
- [[12, 11], 'BlueFuzz', 'num', 1],
- [10, 'StdHW', 'num', null],
- [11, 'StdVW', 'num', null],
- [[12, 12], 'StemSnapH', 'delta', null],
- [[12, 13], 'StemSnapV', 'delta', null],
- [[12, 14], 'ForceBold', 'num', 0],
- [[12, 17], 'LanguageGroup', 'num', 0],
- [[12, 18], 'ExpansionFactor', 'num', 0.06],
- [[12, 19], 'initialRandomSeed', 'num', 0],
- [20, 'defaultWidthX', 'num', 0],
- [21, 'nominalWidthX', 'num', 0],
- [19, 'Subrs', 'offset', null]
- ];
- var tables = null;
- function CFFPrivateDict(strings) {
- if (tables === null) {
- tables = CFFDict.createTables(layout);
- }
- CFFDict.call(this, tables, strings);
- this.subrsIndex = null;
- }
- CFFPrivateDict.prototype = Object.create(CFFDict.prototype);
- return CFFPrivateDict;
-})();
-
-var CFFCharsetPredefinedTypes = {
- ISO_ADOBE: 0,
- EXPERT: 1,
- EXPERT_SUBSET: 2
-};
-var CFFCharset = (function CFFCharsetClosure() {
- function CFFCharset(predefined, format, charset, raw) {
- this.predefined = predefined;
- this.format = format;
- this.charset = charset;
- this.raw = raw;
- }
- return CFFCharset;
-})();
-
-var CFFEncoding = (function CFFEncodingClosure() {
- function CFFEncoding(predefined, format, encoding, raw) {
- this.predefined = predefined;
- this.format = format;
- this.encoding = encoding;
- this.raw = raw;
- }
- return CFFEncoding;
-})();
-
-var CFFFDSelect = (function CFFFDSelectClosure() {
- function CFFFDSelect(fdSelect, raw) {
- this.fdSelect = fdSelect;
- this.raw = raw;
- }
- CFFFDSelect.prototype = {
- getFDIndex: function CFFFDSelect_get(glyphIndex) {
- if (glyphIndex < 0 || glyphIndex >= this.fdSelect.length) {
- return -1;
- }
- return this.fdSelect[glyphIndex];
- }
- };
- return CFFFDSelect;
-})();
-
-// Helper class to keep track of where an offset is within the data and helps
-// filling in that offset once it's known.
-var CFFOffsetTracker = (function CFFOffsetTrackerClosure() {
- function CFFOffsetTracker() {
- this.offsets = Object.create(null);
- }
- CFFOffsetTracker.prototype = {
- isTracking: function CFFOffsetTracker_isTracking(key) {
- return key in this.offsets;
- },
- track: function CFFOffsetTracker_track(key, location) {
- if (key in this.offsets) {
- error('Already tracking location of ' + key);
- }
- this.offsets[key] = location;
- },
- offset: function CFFOffsetTracker_offset(value) {
- for (var key in this.offsets) {
- this.offsets[key] += value;
- }
- },
- setEntryLocation: function CFFOffsetTracker_setEntryLocation(key,
- values,
- output) {
- if (!(key in this.offsets)) {
- error('Not tracking location of ' + key);
- }
- var data = output.data;
- var dataOffset = this.offsets[key];
- var size = 5;
- for (var i = 0, ii = values.length; i < ii; ++i) {
- var offset0 = i * size + dataOffset;
- var offset1 = offset0 + 1;
- var offset2 = offset0 + 2;
- var offset3 = offset0 + 3;
- var offset4 = offset0 + 4;
- // It's easy to screw up offsets so perform this sanity check.
- if (data[offset0] !== 0x1d || data[offset1] !== 0 ||
- data[offset2] !== 0 || data[offset3] !== 0 || data[offset4] !== 0) {
- error('writing to an offset that is not empty');
- }
- var value = values[i];
- data[offset0] = 0x1d;
- data[offset1] = (value >> 24) & 0xFF;
- data[offset2] = (value >> 16) & 0xFF;
- data[offset3] = (value >> 8) & 0xFF;
- data[offset4] = value & 0xFF;
- }
- }
- };
- return CFFOffsetTracker;
-})();
-
-// Takes a CFF and converts it to the binary representation.
-var CFFCompiler = (function CFFCompilerClosure() {
- function CFFCompiler(cff) {
- this.cff = cff;
- }
- CFFCompiler.prototype = {
- compile: function CFFCompiler_compile() {
- var cff = this.cff;
- var output = {
- data: [],
- length: 0,
- add: function CFFCompiler_add(data) {
- this.data = this.data.concat(data);
- this.length = this.data.length;
- }
- };
-
- // Compile the five entries that must be in order.
- var header = this.compileHeader(cff.header);
- output.add(header);
-
- var nameIndex = this.compileNameIndex(cff.names);
- output.add(nameIndex);
-
- if (cff.isCIDFont) {
- // The spec is unclear on how font matrices should relate to each other
- // when there is one in the main top dict and the sub top dicts.
- // Windows handles this differently than linux and osx so we have to
- // normalize to work on all.
- // Rules based off of some mailing list discussions:
- // - If main font has a matrix and subfont doesn't, use the main matrix.
- // - If no main font matrix and there is a subfont matrix, use the
- // subfont matrix.
- // - If both have matrices, concat together.
- // - If neither have matrices, use default.
- // To make this work on all platforms we move the top matrix into each
- // sub top dict and concat if necessary.
- if (cff.topDict.hasName('FontMatrix')) {
- var base = cff.topDict.getByName('FontMatrix');
- cff.topDict.removeByName('FontMatrix');
- for (var i = 0, ii = cff.fdArray.length; i < ii; i++) {
- var subDict = cff.fdArray[i];
- var matrix = base.slice(0);
- if (subDict.hasName('FontMatrix')) {
- matrix = Util.transform(matrix, subDict.getByName('FontMatrix'));
- }
- subDict.setByName('FontMatrix', matrix);
- }
- }
- }
-
- var compiled = this.compileTopDicts([cff.topDict],
- output.length,
- cff.isCIDFont);
- output.add(compiled.output);
- var topDictTracker = compiled.trackers[0];
-
- var stringIndex = this.compileStringIndex(cff.strings.strings);
- output.add(stringIndex);
-
- var globalSubrIndex = this.compileIndex(cff.globalSubrIndex);
- output.add(globalSubrIndex);
-
- // Now start on the other entries that have no specfic order.
- if (cff.encoding && cff.topDict.hasName('Encoding')) {
- if (cff.encoding.predefined) {
- topDictTracker.setEntryLocation('Encoding', [cff.encoding.format],
- output);
- } else {
- var encoding = this.compileEncoding(cff.encoding);
- topDictTracker.setEntryLocation('Encoding', [output.length], output);
- output.add(encoding);
- }
- }
-
- if (cff.charset && cff.topDict.hasName('charset')) {
- if (cff.charset.predefined) {
- topDictTracker.setEntryLocation('charset', [cff.charset.format],
- output);
- } else {
- var charset = this.compileCharset(cff.charset);
- topDictTracker.setEntryLocation('charset', [output.length], output);
- output.add(charset);
- }
- }
-
- var charStrings = this.compileCharStrings(cff.charStrings);
- topDictTracker.setEntryLocation('CharStrings', [output.length], output);
- output.add(charStrings);
-
- if (cff.isCIDFont) {
- // For some reason FDSelect must be in front of FDArray on windows. OSX
- // and linux don't seem to care.
- topDictTracker.setEntryLocation('FDSelect', [output.length], output);
- var fdSelect = this.compileFDSelect(cff.fdSelect.raw);
- output.add(fdSelect);
- // It is unclear if the sub font dictionary can have CID related
- // dictionary keys, but the sanitizer doesn't like them so remove them.
- compiled = this.compileTopDicts(cff.fdArray, output.length, true);
- topDictTracker.setEntryLocation('FDArray', [output.length], output);
- output.add(compiled.output);
- var fontDictTrackers = compiled.trackers;
-
- this.compilePrivateDicts(cff.fdArray, fontDictTrackers, output);
- }
-
- this.compilePrivateDicts([cff.topDict], [topDictTracker], output);
-
- // If the font data ends with INDEX whose object data is zero-length,
- // the sanitizer will bail out. Add a dummy byte to avoid that.
- output.add([0]);
-
- return output.data;
- },
- encodeNumber: function CFFCompiler_encodeNumber(value) {
- if (parseFloat(value) === parseInt(value, 10) && !isNaN(value)) { // isInt
- return this.encodeInteger(value);
- } else {
- return this.encodeFloat(value);
- }
- },
- encodeFloat: function CFFCompiler_encodeFloat(num) {
- var value = num.toString();
-
- // rounding inaccurate doubles
- var m = /\.(\d*?)(?:9{5,20}|0{5,20})\d{0,2}(?:e(.+)|$)/.exec(value);
- if (m) {
- var epsilon = parseFloat('1e' + ((m[2] ? +m[2] : 0) + m[1].length));
- value = (Math.round(num * epsilon) / epsilon).toString();
- }
-
- var nibbles = '';
- var i, ii;
- for (i = 0, ii = value.length; i < ii; ++i) {
- var a = value[i];
- if (a === 'e') {
- nibbles += value[++i] === '-' ? 'c' : 'b';
- } else if (a === '.') {
- nibbles += 'a';
- } else if (a === '-') {
- nibbles += 'e';
- } else {
- nibbles += a;
- }
- }
- nibbles += (nibbles.length & 1) ? 'f' : 'ff';
- var out = [30];
- for (i = 0, ii = nibbles.length; i < ii; i += 2) {
- out.push(parseInt(nibbles.substr(i, 2), 16));
- }
- return out;
- },
- encodeInteger: function CFFCompiler_encodeInteger(value) {
- var code;
- if (value >= -107 && value <= 107) {
- code = [value + 139];
- } else if (value >= 108 && value <= 1131) {
- value = [value - 108];
- code = [(value >> 8) + 247, value & 0xFF];
- } else if (value >= -1131 && value <= -108) {
- value = -value - 108;
- code = [(value >> 8) + 251, value & 0xFF];
- } else if (value >= -32768 && value <= 32767) {
- code = [0x1c, (value >> 8) & 0xFF, value & 0xFF];
- } else {
- code = [0x1d,
- (value >> 24) & 0xFF,
- (value >> 16) & 0xFF,
- (value >> 8) & 0xFF,
- value & 0xFF];
- }
- return code;
- },
- compileHeader: function CFFCompiler_compileHeader(header) {
- return [
- header.major,
- header.minor,
- header.hdrSize,
- header.offSize
- ];
- },
- compileNameIndex: function CFFCompiler_compileNameIndex(names) {
- var nameIndex = new CFFIndex();
- for (var i = 0, ii = names.length; i < ii; ++i) {
- nameIndex.add(stringToBytes(names[i]));
- }
- return this.compileIndex(nameIndex);
- },
- compileTopDicts: function CFFCompiler_compileTopDicts(dicts,
- length,
- removeCidKeys) {
- var fontDictTrackers = [];
- var fdArrayIndex = new CFFIndex();
- for (var i = 0, ii = dicts.length; i < ii; ++i) {
- var fontDict = dicts[i];
- if (removeCidKeys) {
- fontDict.removeByName('CIDFontVersion');
- fontDict.removeByName('CIDFontRevision');
- fontDict.removeByName('CIDFontType');
- fontDict.removeByName('CIDCount');
- fontDict.removeByName('UIDBase');
- }
- var fontDictTracker = new CFFOffsetTracker();
- var fontDictData = this.compileDict(fontDict, fontDictTracker);
- fontDictTrackers.push(fontDictTracker);
- fdArrayIndex.add(fontDictData);
- fontDictTracker.offset(length);
- }
- fdArrayIndex = this.compileIndex(fdArrayIndex, fontDictTrackers);
- return {
- trackers: fontDictTrackers,
- output: fdArrayIndex
- };
- },
- compilePrivateDicts: function CFFCompiler_compilePrivateDicts(dicts,
- trackers,
- output) {
- for (var i = 0, ii = dicts.length; i < ii; ++i) {
- var fontDict = dicts[i];
- assert(fontDict.privateDict && fontDict.hasName('Private'),
- 'There must be an private dictionary.');
- var privateDict = fontDict.privateDict;
- var privateDictTracker = new CFFOffsetTracker();
- var privateDictData = this.compileDict(privateDict, privateDictTracker);
-
- var outputLength = output.length;
- privateDictTracker.offset(outputLength);
- if (!privateDictData.length) {
- // The private dictionary was empty, set the output length to zero to
- // ensure the offset length isn't out of bounds in the eyes of the
- // sanitizer.
- outputLength = 0;
- }
-
- trackers[i].setEntryLocation('Private',
- [privateDictData.length, outputLength],
- output);
- output.add(privateDictData);
-
- if (privateDict.subrsIndex && privateDict.hasName('Subrs')) {
- var subrs = this.compileIndex(privateDict.subrsIndex);
- privateDictTracker.setEntryLocation('Subrs', [privateDictData.length],
- output);
- output.add(subrs);
- }
- }
- },
- compileDict: function CFFCompiler_compileDict(dict, offsetTracker) {
- var out = [];
- // The dictionary keys must be in a certain order.
- var order = dict.order;
- for (var i = 0; i < order.length; ++i) {
- var key = order[i];
- if (!(key in dict.values)) {
- continue;
- }
- var values = dict.values[key];
- var types = dict.types[key];
- if (!isArray(types)) {
- types = [types];
- }
- if (!isArray(values)) {
- values = [values];
- }
-
- // Remove any empty dict values.
- if (values.length === 0) {
- continue;
- }
-
- for (var j = 0, jj = types.length; j < jj; ++j) {
- var type = types[j];
- var value = values[j];
- switch (type) {
- case 'num':
- case 'sid':
- out = out.concat(this.encodeNumber(value));
- break;
- case 'offset':
- // For offsets we just insert a 32bit integer so we don't have to
- // deal with figuring out the length of the offset when it gets
- // replaced later on by the compiler.
- var name = dict.keyToNameMap[key];
- // Some offsets have the offset and the length, so just record the
- // position of the first one.
- if (!offsetTracker.isTracking(name)) {
- offsetTracker.track(name, out.length);
- }
- out = out.concat([0x1d, 0, 0, 0, 0]);
- break;
- case 'array':
- case 'delta':
- out = out.concat(this.encodeNumber(value));
- for (var k = 1, kk = values.length; k < kk; ++k) {
- out = out.concat(this.encodeNumber(values[k]));
- }
- break;
- default:
- error('Unknown data type of ' + type);
- break;
- }
- }
- out = out.concat(dict.opcodes[key]);
- }
- return out;
- },
- compileStringIndex: function CFFCompiler_compileStringIndex(strings) {
- var stringIndex = new CFFIndex();
- for (var i = 0, ii = strings.length; i < ii; ++i) {
- stringIndex.add(stringToBytes(strings[i]));
- }
- return this.compileIndex(stringIndex);
- },
- compileGlobalSubrIndex: function CFFCompiler_compileGlobalSubrIndex() {
- var globalSubrIndex = this.cff.globalSubrIndex;
- this.out.writeByteArray(this.compileIndex(globalSubrIndex));
- },
- compileCharStrings: function CFFCompiler_compileCharStrings(charStrings) {
- return this.compileIndex(charStrings);
- },
- compileCharset: function CFFCompiler_compileCharset(charset) {
- return this.compileTypedArray(charset.raw);
- },
- compileEncoding: function CFFCompiler_compileEncoding(encoding) {
- return this.compileTypedArray(encoding.raw);
- },
- compileFDSelect: function CFFCompiler_compileFDSelect(fdSelect) {
- return this.compileTypedArray(fdSelect);
- },
- compileTypedArray: function CFFCompiler_compileTypedArray(data) {
- var out = [];
- for (var i = 0, ii = data.length; i < ii; ++i) {
- out[i] = data[i];
- }
- return out;
- },
- compileIndex: function CFFCompiler_compileIndex(index, trackers) {
- trackers = trackers || [];
- var objects = index.objects;
- // First 2 bytes contains the number of objects contained into this index
- var count = objects.length;
-
- // If there is no object, just create an index. This technically
- // should just be [0, 0] but OTS has an issue with that.
- if (count === 0) {
- return [0, 0, 0];
- }
-
- var data = [(count >> 8) & 0xFF, count & 0xff];
-
- var lastOffset = 1, i;
- for (i = 0; i < count; ++i) {
- lastOffset += objects[i].length;
- }
-
- var offsetSize;
- if (lastOffset < 0x100) {
- offsetSize = 1;
- } else if (lastOffset < 0x10000) {
- offsetSize = 2;
- } else if (lastOffset < 0x1000000) {
- offsetSize = 3;
- } else {
- offsetSize = 4;
- }
-
- // Next byte contains the offset size use to reference object in the file
- data.push(offsetSize);
-
- // Add another offset after this one because we need a new offset
- var relativeOffset = 1;
- for (i = 0; i < count + 1; i++) {
- if (offsetSize === 1) {
- data.push(relativeOffset & 0xFF);
- } else if (offsetSize === 2) {
- data.push((relativeOffset >> 8) & 0xFF,
- relativeOffset & 0xFF);
- } else if (offsetSize === 3) {
- data.push((relativeOffset >> 16) & 0xFF,
- (relativeOffset >> 8) & 0xFF,
- relativeOffset & 0xFF);
- } else {
- data.push((relativeOffset >>> 24) & 0xFF,
- (relativeOffset >> 16) & 0xFF,
- (relativeOffset >> 8) & 0xFF,
- relativeOffset & 0xFF);
- }
-
- if (objects[i]) {
- relativeOffset += objects[i].length;
- }
- }
-
- for (i = 0; i < count; i++) {
- // Notify the tracker where the object will be offset in the data.
- if (trackers[i]) {
- trackers[i].offset(data.length);
- }
- for (var j = 0, jj = objects[i].length; j < jj; j++) {
- data.push(objects[i][j]);
- }
- }
- return data;
- }
- };
- return CFFCompiler;
-})();
-
-function _enableSeacAnalysis(enabled) {
- exports.SEAC_ANALYSIS_ENABLED = SEAC_ANALYSIS_ENABLED = enabled;
-}
-
// Workaround for seac on Windows.
(function checkSeacSupport() {
if (typeof navigator !== 'undefined' && /Windows/.test(navigator.userAgent)) {
@@ -5565,19 +3987,11 @@ function _enableSeacAnalysis(enabled) {
})();
exports.SEAC_ANALYSIS_ENABLED = SEAC_ANALYSIS_ENABLED;
-exports.CFFCompiler = CFFCompiler;
-exports.CFFIndex = CFFIndex;
-exports.CFFParser = CFFParser;
-exports.CFFStrings = CFFStrings;
exports.ErrorFont = ErrorFont;
-exports.FontFlags = FontFlags;
exports.Font = Font;
+exports.FontFlags = FontFlags;
exports.IdentityToUnicodeMap = IdentityToUnicodeMap;
exports.ToUnicodeMap = ToUnicodeMap;
exports.Type1Parser = Type1Parser;
exports.getFontType = getFontType;
-exports._enableSeacAnalysis = _enableSeacAnalysis;
-
-// TODO refactor to remove cyclic dependency on font_renderer.js
-coreFontRenderer._setCoreFonts(exports);
}));
diff --git a/test/unit/font_spec.js b/test/unit/font_spec.js
index d881516..378e588 100644
--- a/test/unit/font_spec.js
+++ b/test/unit/font_spec.js
@@ -1,6 +1,5 @@
/* globals expect, it, describe, CFFCompiler, CFFParser, CFFIndex, CFFStrings,
- SEAC_ANALYSIS_ENABLED, Type1Parser, StringStream,
- _enableSeacAnalysis */
+ Type1Parser, StringStream, SEAC_ANALYSIS_ENABLED */
'use strict';
@@ -38,7 +37,7 @@ describe('font', function() {
}
describe('CFFParser', function() {
- var parser = new CFFParser(fontData, {});
+ var parser = new CFFParser(fontData, {}, SEAC_ANALYSIS_ENABLED);
var cff = parser.parse();
it('parses header', function() {
@@ -117,46 +116,42 @@ describe('font', function() {
});
it('parses a CharString endchar with 4 args w/seac enabled', function() {
- var seacAnalysisState = SEAC_ANALYSIS_ENABLED;
- try {
- _enableSeacAnalysis(true);
- var bytes = new Uint8Array([0, 1, // count
- 1, // offsetSize
- 0, // offset[0]
- 237, 247, 22, 247, 72, 204, 247, 86, 14]);
- parser.bytes = bytes;
- var charStringsIndex = parser.parseIndex(0).obj;
- var result = parser.parseCharStrings(charStringsIndex);
- expect(result.charStrings.count).toEqual(1);
- expect(result.charStrings.get(0).length).toEqual(1);
- expect(result.seacs.length).toEqual(1);
- expect(result.seacs[0].length).toEqual(4);
- expect(result.seacs[0][0]).toEqual(130);
- expect(result.seacs[0][1]).toEqual(180);
- expect(result.seacs[0][2]).toEqual(65);
- expect(result.seacs[0][3]).toEqual(194);
- } finally {
- _enableSeacAnalysis(seacAnalysisState);
- }
+ var parser = new CFFParser(fontData, {},
+ /* seacAnalysisEnabled = */ true);
+ var cff = parser.parse();
+
+ var bytes = new Uint8Array([0, 1, // count
+ 1, // offsetSize
+ 0, // offset[0]
+ 237, 247, 22, 247, 72, 204, 247, 86, 14]);
+ parser.bytes = bytes;
+ var charStringsIndex = parser.parseIndex(0).obj;
+ var result = parser.parseCharStrings(charStringsIndex);
+ expect(result.charStrings.count).toEqual(1);
+ expect(result.charStrings.get(0).length).toEqual(1);
+ expect(result.seacs.length).toEqual(1);
+ expect(result.seacs[0].length).toEqual(4);
+ expect(result.seacs[0][0]).toEqual(130);
+ expect(result.seacs[0][1]).toEqual(180);
+ expect(result.seacs[0][2]).toEqual(65);
+ expect(result.seacs[0][3]).toEqual(194);
});
it('parses a CharString endchar with 4 args w/seac disabled', function() {
- var seacAnalysisState = SEAC_ANALYSIS_ENABLED;
- try {
- _enableSeacAnalysis(false);
- var bytes = new Uint8Array([0, 1, // count
- 1, // offsetSize
- 0, // offset[0]
- 237, 247, 22, 247, 72, 204, 247, 86, 14]);
- parser.bytes = bytes;
- var charStringsIndex = parser.parseIndex(0).obj;
- var result = parser.parseCharStrings(charStringsIndex);
- expect(result.charStrings.count).toEqual(1);
- expect(result.charStrings.get(0).length).toEqual(9);
- expect(result.seacs.length).toEqual(0);
- } finally {
- _enableSeacAnalysis(seacAnalysisState);
- }
+ var parser = new CFFParser(fontData, {},
+ /* seacAnalysisEnabled = */ false);
+ var cff = parser.parse();
+
+ var bytes = new Uint8Array([0, 1, // count
+ 1, // offsetSize
+ 0, // offset[0]
+ 237, 247, 22, 247, 72, 204, 247, 86, 14]);
+ parser.bytes = bytes;
+ var charStringsIndex = parser.parseIndex(0).obj;
+ var result = parser.parseCharStrings(charStringsIndex);
+ expect(result.charStrings.count).toEqual(1);
+ expect(result.charStrings.get(0).length).toEqual(9);
+ expect(result.seacs.length).toEqual(0);
});
it('parses a CharString endchar no args', function() {
diff --git a/test/unit/jasmine-boot.js b/test/unit/jasmine-boot.js
index 2c344c5..8648c66 100644
--- a/test/unit/jasmine-boot.js
+++ b/test/unit/jasmine-boot.js
@@ -48,12 +48,12 @@ function initializePDFJS(callback) {
'pdfjs/core/annotation', 'pdfjs/core/crypto', 'pdfjs/core/stream',
'pdfjs/core/fonts', 'pdfjs/core/ps_parser', 'pdfjs/core/function',
'pdfjs/core/parser', 'pdfjs/core/evaluator', 'pdfjs/core/cmap',
- 'pdfjs/core/worker', 'pdfjs/core/network', 'pdfjs/display/api',
- 'pdfjs/display/metadata', 'pdfjs/display/dom_utils'],
+ 'pdfjs/core/worker', 'pdfjs/core/network', 'pdfjs/core/cff_parser',
+ 'pdfjs/display/api', 'pdfjs/display/metadata', 'pdfjs/display/dom_utils'],
function (sharedUtil, displayGlobal, corePrimitives, coreAnnotation,
coreCrypto, coreStream, coreFonts, corePsParser, coreFunction,
coreParser, coreEvaluator, coreCMap, coreWorker, coreNetwork,
- displayAPI, displayMetadata, displayDOMUtils) {
+ coreCFFParser, displayAPI, displayMetadata, displayDOMUtils) {
pdfjsLibs = {
sharedUtil: sharedUtil,
@@ -70,6 +70,7 @@ function initializePDFJS(callback) {
coreCMap: coreCMap,
coreWorker: coreWorker,
coreNetwork: coreNetwork,
+ coreCFFParser: coreCFFParser,
displayAPI: displayAPI,
displayMetadata: displayMetadata,
displayDOMUtils: displayDOMUtils
--
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