diff --git a/src/core/cff_parser.js b/src/core/cff_parser.js new file mode 100644 index 0000000000000..8c8fe05019e00 --- /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 729282c35d51c..f57fdf6eeb0a2 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 660f681f684c8..7acbd0d837451 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/type1_parser', '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('./type1_parser'), 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.pdfjsCoreType1Parser, root.pdfjsCoreCFFParser); } }(this, function (exports, sharedUtil, corePrimitives, coreStream, coreParser, coreGlyphList, coreCharsets, coreFontRenderer, - coreEncodings, coreStandardFonts, coreUnicode) { + coreEncodings, coreStandardFonts, coreUnicode, + coreType1Parser, coreCFFParser) { var FONT_IDENTITY_MATRIX = sharedUtil.FONT_IDENTITY_MATRIX; var FontType = sharedUtil.FontType; @@ -78,6 +82,17 @@ var getSupplementalGlyphMapForArialBlack = var getUnicodeRangeFor = coreUnicode.getUnicodeRangeFor; var mapSpecialUnicodeValues = coreUnicode.mapSpecialUnicodeValues; var getUnicodeForGlyph = coreUnicode.getUnicodeForGlyph; +var Type1Parser = coreType1Parser.Type1Parser; +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; @@ -88,17 +103,10 @@ var SKIP_PRIVATE_USE_RANGE_F000_TO_F01F = false; // except for Type 3 fonts var PDF_GLYPH_SPACE_UNITS = 1000; -// Hinting is currently disabled due to unknown problems on windows -// 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 +1214,7 @@ 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 +2462,8 @@ 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(); @@ -2873,753 +2882,6 @@ function type1FontGlyphMapping(properties, builtInEncoding, glyphNames) { return charCodeToGlyphId; } -/* - * CharStrings are encoded following the the CharString Encoding sequence - * describe in Chapter 6 of the "Adobe Type1 Font Format" specification. - * The value in a byte indicates a command, a number, or subsequent bytes - * that are to be interpreted in a special way. - * - * CharString Number Encoding: - * A CharString byte containing the values from 32 through 255 inclusive - * indicate an integer. These values are decoded in four ranges. - * - * 1. A CharString byte containing a value, v, between 32 and 246 inclusive, - * indicate the integer v - 139. Thus, the integer values from -107 through - * 107 inclusive may be encoded in single byte. - * - * 2. A CharString byte containing a value, v, between 247 and 250 inclusive, - * indicates an integer involving the next byte, w, according to the formula: - * [(v - 247) x 256] + w + 108 - * - * 3. A CharString byte containing a value, v, between 251 and 254 inclusive, - * indicates an integer involving the next byte, w, according to the formula: - * -[(v - 251) * 256] - w - 108 - * - * 4. A CharString containing the value 255 indicates that the next 4 bytes - * are a two complement signed integer. The first of these bytes contains the - * highest order bits, the second byte contains the next higher order bits - * and the fourth byte contain the lowest order bits. - * - * - * CharString Command Encoding: - * CharStrings commands are encoded in 1 or 2 bytes. - * - * Single byte commands are encoded in 1 byte that contains a value between - * 0 and 31 inclusive. - * If a command byte contains the value 12, then the value in the next byte - * indicates a command. This "escape" mechanism allows many extra commands - * to be encoded and this encoding technique helps to minimize the length of - * the charStrings. - */ -var Type1CharString = (function Type1CharStringClosure() { - var COMMAND_MAP = { - 'hstem': [1], - 'vstem': [3], - 'vmoveto': [4], - 'rlineto': [5], - 'hlineto': [6], - 'vlineto': [7], - 'rrcurveto': [8], - 'callsubr': [10], - 'flex': [12, 35], - 'drop' : [12, 18], - 'endchar': [14], - 'rmoveto': [21], - 'hmoveto': [22], - 'vhcurveto': [30], - 'hvcurveto': [31] - }; - - function Type1CharString() { - this.width = 0; - this.lsb = 0; - this.flexing = false; - this.output = []; - this.stack = []; - } - - Type1CharString.prototype = { - convert: function Type1CharString_convert(encoded, subrs) { - var count = encoded.length; - var error = false; - var wx, sbx, subrNumber; - for (var i = 0; i < count; i++) { - var value = encoded[i]; - if (value < 32) { - if (value === 12) { - value = (value << 8) + encoded[++i]; - } - switch (value) { - case 1: // hstem - if (!HINTING_ENABLED) { - this.stack = []; - break; - } - error = this.executeCommand(2, COMMAND_MAP.hstem); - break; - case 3: // vstem - if (!HINTING_ENABLED) { - this.stack = []; - break; - } - error = this.executeCommand(2, COMMAND_MAP.vstem); - break; - case 4: // vmoveto - if (this.flexing) { - if (this.stack.length < 1) { - error = true; - break; - } - // Add the dx for flex and but also swap the values so they are - // the right order. - var dy = this.stack.pop(); - this.stack.push(0, dy); - break; - } - error = this.executeCommand(1, COMMAND_MAP.vmoveto); - break; - case 5: // rlineto - error = this.executeCommand(2, COMMAND_MAP.rlineto); - break; - case 6: // hlineto - error = this.executeCommand(1, COMMAND_MAP.hlineto); - break; - case 7: // vlineto - error = this.executeCommand(1, COMMAND_MAP.vlineto); - break; - case 8: // rrcurveto - error = this.executeCommand(6, COMMAND_MAP.rrcurveto); - break; - case 9: // closepath - // closepath is a Type1 command that does not take argument and is - // useless in Type2 and it can simply be ignored. - this.stack = []; - break; - case 10: // callsubr - if (this.stack.length < 1) { - error = true; - break; - } - subrNumber = this.stack.pop(); - error = this.convert(subrs[subrNumber], subrs); - break; - case 11: // return - return error; - case 13: // hsbw - if (this.stack.length < 2) { - error = true; - break; - } - // To convert to type2 we have to move the width value to the - // first part of the charstring and then use hmoveto with lsb. - wx = this.stack.pop(); - sbx = this.stack.pop(); - this.lsb = sbx; - this.width = wx; - this.stack.push(wx, sbx); - error = this.executeCommand(2, COMMAND_MAP.hmoveto); - break; - case 14: // endchar - this.output.push(COMMAND_MAP.endchar[0]); - break; - case 21: // rmoveto - if (this.flexing) { - break; - } - error = this.executeCommand(2, COMMAND_MAP.rmoveto); - break; - case 22: // hmoveto - if (this.flexing) { - // Add the dy for flex. - this.stack.push(0); - break; - } - error = this.executeCommand(1, COMMAND_MAP.hmoveto); - break; - case 30: // vhcurveto - error = this.executeCommand(4, COMMAND_MAP.vhcurveto); - break; - case 31: // hvcurveto - error = this.executeCommand(4, COMMAND_MAP.hvcurveto); - break; - case (12 << 8) + 0: // dotsection - // dotsection is a Type1 command to specify some hinting feature - // for dots that do not take a parameter and it can safely be - // ignored for Type2. - this.stack = []; - break; - case (12 << 8) + 1: // vstem3 - if (!HINTING_ENABLED) { - this.stack = []; - break; - } - // [vh]stem3 are Type1 only and Type2 supports [vh]stem with - // multiple parameters, so instead of returning [vh]stem3 take a - // shortcut and return [vhstem] instead. - error = this.executeCommand(2, COMMAND_MAP.vstem); - break; - case (12 << 8) + 2: // hstem3 - if (!HINTING_ENABLED) { - this.stack = []; - break; - } - // See vstem3. - error = this.executeCommand(2, COMMAND_MAP.hstem); - break; - case (12 << 8) + 6: // seac - // seac is like type 2's special endchar but it doesn't use the - // first argument asb, so remove it. - if (SEAC_ANALYSIS_ENABLED) { - this.seac = this.stack.splice(-4, 4); - error = this.executeCommand(0, COMMAND_MAP.endchar); - } else { - error = this.executeCommand(4, COMMAND_MAP.endchar); - } - break; - case (12 << 8) + 7: // sbw - if (this.stack.length < 4) { - error = true; - break; - } - // To convert to type2 we have to move the width value to the - // first part of the charstring and then use rmoveto with - // (dx, dy). The height argument will not be used for vmtx and - // vhea tables reconstruction -- ignoring it. - var wy = this.stack.pop(); - wx = this.stack.pop(); - var sby = this.stack.pop(); - sbx = this.stack.pop(); - this.lsb = sbx; - this.width = wx; - this.stack.push(wx, sbx, sby); - error = this.executeCommand(3, COMMAND_MAP.rmoveto); - break; - case (12 << 8) + 12: // div - if (this.stack.length < 2) { - error = true; - break; - } - var num2 = this.stack.pop(); - var num1 = this.stack.pop(); - this.stack.push(num1 / num2); - break; - case (12 << 8) + 16: // callothersubr - if (this.stack.length < 2) { - error = true; - break; - } - subrNumber = this.stack.pop(); - var numArgs = this.stack.pop(); - if (subrNumber === 0 && numArgs === 3) { - var flexArgs = this.stack.splice(this.stack.length - 17, 17); - this.stack.push( - flexArgs[2] + flexArgs[0], // bcp1x + rpx - flexArgs[3] + flexArgs[1], // bcp1y + rpy - flexArgs[4], // bcp2x - flexArgs[5], // bcp2y - flexArgs[6], // p2x - flexArgs[7], // p2y - flexArgs[8], // bcp3x - flexArgs[9], // bcp3y - flexArgs[10], // bcp4x - flexArgs[11], // bcp4y - flexArgs[12], // p3x - flexArgs[13], // p3y - flexArgs[14] // flexDepth - // 15 = finalx unused by flex - // 16 = finaly unused by flex - ); - error = this.executeCommand(13, COMMAND_MAP.flex, true); - this.flexing = false; - this.stack.push(flexArgs[15], flexArgs[16]); - } else if (subrNumber === 1 && numArgs === 0) { - this.flexing = true; - } - break; - case (12 << 8) + 17: // pop - // Ignore this since it is only used with othersubr. - break; - case (12 << 8) + 33: // setcurrentpoint - // Ignore for now. - this.stack = []; - break; - default: - warn('Unknown type 1 charstring command of "' + value + '"'); - break; - } - if (error) { - break; - } - continue; - } else if (value <= 246) { - value = value - 139; - } else if (value <= 250) { - value = ((value - 247) * 256) + encoded[++i] + 108; - } else if (value <= 254) { - value = -((value - 251) * 256) - encoded[++i] - 108; - } else { - value = (encoded[++i] & 0xff) << 24 | (encoded[++i] & 0xff) << 16 | - (encoded[++i] & 0xff) << 8 | (encoded[++i] & 0xff) << 0; - } - this.stack.push(value); - } - return error; - }, - - executeCommand: function(howManyArgs, command, keepStack) { - var stackLength = this.stack.length; - if (howManyArgs > stackLength) { - return true; - } - var start = stackLength - howManyArgs; - for (var i = start; i < stackLength; i++) { - var value = this.stack[i]; - if (value === (value | 0)) { // int - this.output.push(28, (value >> 8) & 0xff, value & 0xff); - } else { // fixed point - value = (65536 * value) | 0; - this.output.push(255, - (value >> 24) & 0xFF, - (value >> 16) & 0xFF, - (value >> 8) & 0xFF, - value & 0xFF); - } - } - this.output.push.apply(this.output, command); - if (keepStack) { - this.stack.splice(start, howManyArgs); - } else { - this.stack.length = 0; - } - return false; - } - }; - - return Type1CharString; -})(); - -/* - * Type1Parser encapsulate the needed code for parsing a Type1 font - * program. Some of its logic depends on the Type2 charstrings - * structure. - * Note: this doesn't really parse the font since that would require evaluation - * of PostScript, but it is possible in most cases to extract what we need - * without a full parse. - */ -var Type1Parser = (function Type1ParserClosure() { - /* - * Decrypt a Sequence of Ciphertext Bytes to Produce the Original Sequence - * of Plaintext Bytes. The function took a key as a parameter which can be - * for decrypting the eexec block of for decoding charStrings. - */ - var EEXEC_ENCRYPT_KEY = 55665; - var CHAR_STRS_ENCRYPT_KEY = 4330; - - function isHexDigit(code) { - return code >= 48 && code <= 57 || // '0'-'9' - code >= 65 && code <= 70 || // 'A'-'F' - code >= 97 && code <= 102; // 'a'-'f' - } - - function decrypt(data, key, discardNumber) { - if (discardNumber >= data.length) { - return new Uint8Array(0); - } - var r = key | 0, c1 = 52845, c2 = 22719, i, j; - for (i = 0; i < discardNumber; i++) { - r = ((data[i] + r) * c1 + c2) & ((1 << 16) - 1); - } - var count = data.length - discardNumber; - var decrypted = new Uint8Array(count); - for (i = discardNumber, j = 0; j < count; i++, j++) { - var value = data[i]; - decrypted[j] = value ^ (r >> 8); - r = ((value + r) * c1 + c2) & ((1 << 16) - 1); - } - return decrypted; - } - - function decryptAscii(data, key, discardNumber) { - var r = key | 0, c1 = 52845, c2 = 22719; - var count = data.length, maybeLength = count >>> 1; - var decrypted = new Uint8Array(maybeLength); - var i, j; - for (i = 0, j = 0; i < count; i++) { - var digit1 = data[i]; - if (!isHexDigit(digit1)) { - continue; - } - i++; - var digit2; - while (i < count && !isHexDigit(digit2 = data[i])) { - i++; - } - if (i < count) { - var value = parseInt(String.fromCharCode(digit1, digit2), 16); - decrypted[j++] = value ^ (r >> 8); - r = ((value + r) * c1 + c2) & ((1 << 16) - 1); - } - } - return Array.prototype.slice.call(decrypted, discardNumber, j); - } - - function isSpecial(c) { - return c === 0x2F || // '/' - c === 0x5B || c === 0x5D || // '[', ']' - c === 0x7B || c === 0x7D || // '{', '}' - c === 0x28 || c === 0x29; // '(', ')' - } - - function Type1Parser(stream, encrypted) { - if (encrypted) { - var data = stream.getBytes(); - var isBinary = !(isHexDigit(data[0]) && isHexDigit(data[1]) && - isHexDigit(data[2]) && isHexDigit(data[3])); - stream = new Stream(isBinary ? decrypt(data, EEXEC_ENCRYPT_KEY, 4) : - decryptAscii(data, EEXEC_ENCRYPT_KEY, 4)); - } - this.stream = stream; - this.nextChar(); - } - - Type1Parser.prototype = { - readNumberArray: function Type1Parser_readNumberArray() { - this.getToken(); // read '[' or '{' (arrays can start with either) - var array = []; - while (true) { - var token = this.getToken(); - if (token === null || token === ']' || token === '}') { - break; - } - array.push(parseFloat(token || 0)); - } - return array; - }, - - readNumber: function Type1Parser_readNumber() { - var token = this.getToken(); - return parseFloat(token || 0); - }, - - readInt: function Type1Parser_readInt() { - // Use '| 0' to prevent setting a double into length such as the double - // does not flow into the loop variable. - var token = this.getToken(); - return parseInt(token || 0, 10) | 0; - }, - - readBoolean: function Type1Parser_readBoolean() { - var token = this.getToken(); - - // Use 1 and 0 since that's what type2 charstrings use. - return token === 'true' ? 1 : 0; - }, - - nextChar : function Type1_nextChar() { - return (this.currentChar = this.stream.getByte()); - }, - - getToken: function Type1Parser_getToken() { - // Eat whitespace and comments. - var comment = false; - var ch = this.currentChar; - while (true) { - if (ch === -1) { - return null; - } - - if (comment) { - if (ch === 0x0A || ch === 0x0D) { - comment = false; - } - } else if (ch === 0x25) { // '%' - comment = true; - } else if (!Lexer.isSpace(ch)) { - break; - } - ch = this.nextChar(); - } - if (isSpecial(ch)) { - this.nextChar(); - return String.fromCharCode(ch); - } - var token = ''; - do { - token += String.fromCharCode(ch); - ch = this.nextChar(); - } while (ch >= 0 && !Lexer.isSpace(ch) && !isSpecial(ch)); - return token; - }, - - /* - * Returns an object containing a Subrs array and a CharStrings - * array extracted from and eexec encrypted block of data - */ - extractFontProgram: function Type1Parser_extractFontProgram() { - var stream = this.stream; - - var subrs = [], charstrings = []; - var privateData = Object.create(null); - privateData['lenIV'] = 4; - var program = { - subrs: [], - charstrings: [], - properties: { - 'privateData': privateData - } - }; - var token, length, data, lenIV, encoded; - while ((token = this.getToken()) !== null) { - if (token !== '/') { - continue; - } - token = this.getToken(); - switch (token) { - case 'CharStrings': - // The number immediately following CharStrings must be greater or - // equal to the number of CharStrings. - this.getToken(); - this.getToken(); // read in 'dict' - this.getToken(); // read in 'dup' - this.getToken(); // read in 'begin' - while(true) { - token = this.getToken(); - if (token === null || token === 'end') { - break; - } - - if (token !== '/') { - continue; - } - var glyph = this.getToken(); - length = this.readInt(); - this.getToken(); // read in 'RD' or '-|' - data = stream.makeSubStream(stream.pos, length); - lenIV = program.properties.privateData['lenIV']; - encoded = decrypt(data.getBytes(), CHAR_STRS_ENCRYPT_KEY, lenIV); - // Skip past the required space and binary data. - stream.skip(length); - this.nextChar(); - token = this.getToken(); // read in 'ND' or '|-' - if (token === 'noaccess') { - this.getToken(); // read in 'def' - } - charstrings.push({ - glyph: glyph, - encoded: encoded - }); - } - break; - case 'Subrs': - var num = this.readInt(); - this.getToken(); // read in 'array' - while ((token = this.getToken()) === 'dup') { - var index = this.readInt(); - length = this.readInt(); - this.getToken(); // read in 'RD' or '-|' - data = stream.makeSubStream(stream.pos, length); - lenIV = program.properties.privateData['lenIV']; - encoded = decrypt(data.getBytes(), CHAR_STRS_ENCRYPT_KEY, lenIV); - // Skip past the required space and binary data. - stream.skip(length); - this.nextChar(); - token = this.getToken(); // read in 'NP' or '|' - if (token === 'noaccess') { - this.getToken(); // read in 'put' - } - subrs[index] = encoded; - } - break; - case 'BlueValues': - case 'OtherBlues': - case 'FamilyBlues': - case 'FamilyOtherBlues': - var blueArray = this.readNumberArray(); - // *Blue* values may contain invalid data: disables reading of - // those values when hinting is disabled. - if (blueArray.length > 0 && (blueArray.length % 2) === 0 && - HINTING_ENABLED) { - program.properties.privateData[token] = blueArray; - } - break; - case 'StemSnapH': - case 'StemSnapV': - program.properties.privateData[token] = this.readNumberArray(); - break; - case 'StdHW': - case 'StdVW': - program.properties.privateData[token] = - this.readNumberArray()[0]; - break; - case 'BlueShift': - case 'lenIV': - case 'BlueFuzz': - case 'BlueScale': - case 'LanguageGroup': - case 'ExpansionFactor': - program.properties.privateData[token] = this.readNumber(); - break; - case 'ForceBold': - program.properties.privateData[token] = this.readBoolean(); - break; - } - } - - for (var i = 0; i < charstrings.length; i++) { - glyph = charstrings[i].glyph; - encoded = charstrings[i].encoded; - var charString = new Type1CharString(); - var error = charString.convert(encoded, subrs); - var output = charString.output; - if (error) { - // It seems when FreeType encounters an error while evaluating a glyph - // that it completely ignores the glyph so we'll mimic that behaviour - // here and put an endchar to make the validator happy. - output = [14]; - } - program.charstrings.push({ - glyphName: glyph, - charstring: output, - width: charString.width, - lsb: charString.lsb, - seac: charString.seac - }); - } - - return program; - }, - - extractFontHeader: function Type1Parser_extractFontHeader(properties) { - var token; - while ((token = this.getToken()) !== null) { - if (token !== '/') { - continue; - } - token = this.getToken(); - switch (token) { - case 'FontMatrix': - var matrix = this.readNumberArray(); - properties.fontMatrix = matrix; - break; - case 'Encoding': - var encodingArg = this.getToken(); - var encoding; - if (!/^\d+$/.test(encodingArg)) { - // encoding name is specified - encoding = getEncoding(encodingArg); - } else { - encoding = []; - var size = parseInt(encodingArg, 10) | 0; - this.getToken(); // read in 'array' - - for (var j = 0; j < size; j++) { - token = this.getToken(); - // skipping till first dup or def (e.g. ignoring for statement) - while (token !== 'dup' && token !== 'def') { - token = this.getToken(); - if (token === null) { - return; // invalid header - } - } - if (token === 'def') { - break; // read all array data - } - var index = this.readInt(); - this.getToken(); // read in '/' - var glyph = this.getToken(); - encoding[index] = glyph; - this.getToken(); // read the in 'put' - } - } - properties.builtInEncoding = encoding; - break; - case 'FontBBox': - var fontBBox = this.readNumberArray(); - // adjusting ascent/descent - properties.ascent = fontBBox[3]; - properties.descent = fontBBox[1]; - properties.ascentScaled = true; - break; - } - } - } - }; - - 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) { @@ -3754,7 +3016,8 @@ var Type1Font = (function Type1FontClosure() { // Get the data block containing glyphs and subrs informations var headerBlock = getHeaderBlock(file, headerBlockLength); headerBlockLength = headerBlock.length; - var headerBlockParser = new Type1Parser(headerBlock.stream); + var headerBlockParser = new Type1Parser(headerBlock.stream, false, + SEAC_ANALYSIS_ENABLED); headerBlockParser.extractFontHeader(properties); if (pfbHeaderPresent) { @@ -3766,7 +3029,8 @@ var Type1Font = (function Type1FontClosure() { // Decrypt the data blocks and retrieve it's content var eexecBlock = getEexecBlock(file, eexecBlockLength); eexecBlockLength = eexecBlock.length; - var eexecBlockParser = new Type1Parser(eexecBlock.stream, true); + var eexecBlockParser = new Type1Parser(eexecBlock.stream, true, + SEAC_ANALYSIS_ENABLED); var data = eexecBlockParser.extractFontProgram(); for (var info in data.properties) { properties[info] = data.properties[info]; @@ -3972,7 +3236,7 @@ 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; @@ -4029,1555 +3293,28 @@ 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; +// Workaround for seac on Windows. +(function checkSeacSupport() { + if (typeof navigator !== 'undefined' && /Windows/.test(navigator.userAgent)) { + SEAC_ANALYSIS_ENABLED = true; } - 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)) { - SEAC_ANALYSIS_ENABLED = true; - } -})(); - -// Workaround for Private Use Area characters in Chrome on Windows -// http://code.google.com/p/chromium/issues/detail?id=122465 -// https://github.com/mozilla/pdf.js/issues/1689 -(function checkChromeWindows() { - if (typeof navigator !== 'undefined' && - /Windows.*Chrome/.test(navigator.userAgent)) { - SKIP_PRIVATE_USE_RANGE_F000_TO_F01F = true; - } -})(); +// Workaround for Private Use Area characters in Chrome on Windows +// http://code.google.com/p/chromium/issues/detail?id=122465 +// https://github.com/mozilla/pdf.js/issues/1689 +(function checkChromeWindows() { + if (typeof navigator !== 'undefined' && + /Windows.*Chrome/.test(navigator.userAgent)) { + SKIP_PRIVATE_USE_RANGE_F000_TO_F01F = true; + } +})(); 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/src/core/type1_parser.js b/src/core/type1_parser.js new file mode 100644 index 0000000000000..20cfabeca8021 --- /dev/null +++ b/src/core/type1_parser.js @@ -0,0 +1,722 @@ +/* Copyright 2012 Mozilla Foundation + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +'use strict'; + +(function (root, factory) { + if (typeof define === 'function' && define.amd) { + define('pdfjs/core/type1_parser', ['exports', 'pdfjs/shared/util', + 'pdfjs/core/stream', 'pdfjs/core/parser', 'pdfjs/core/encodings'], + factory); + } else if (typeof exports !== 'undefined') { + factory(exports, require('../shared/util.js'), require('./stream.js'), + require('./parser.js'), require('./encodings.js')); + } else { + factory((root.pdfjsCoreType1Parser = {}), root.pdfjsSharedUtil, + root.pdfjsCoreStream, root.pdfjsCoreParser, root.pdfjsCoreEncodings); + } +}(this, function (exports, sharedUtil, coreStream, coreParser, coreEncodings) { + +var warn = sharedUtil.warn; +var Stream = coreStream.Stream; +var Lexer = coreParser.Lexer; +var getEncoding = coreEncodings.getEncoding; + +// Hinting is currently disabled due to unknown problems on windows +// in tracemonkey and various other pdfs with type1 fonts. +var HINTING_ENABLED = false; + +/* + * CharStrings are encoded following the the CharString Encoding sequence + * describe in Chapter 6 of the "Adobe Type1 Font Format" specification. + * The value in a byte indicates a command, a number, or subsequent bytes + * that are to be interpreted in a special way. + * + * CharString Number Encoding: + * A CharString byte containing the values from 32 through 255 inclusive + * indicate an integer. These values are decoded in four ranges. + * + * 1. A CharString byte containing a value, v, between 32 and 246 inclusive, + * indicate the integer v - 139. Thus, the integer values from -107 through + * 107 inclusive may be encoded in single byte. + * + * 2. A CharString byte containing a value, v, between 247 and 250 inclusive, + * indicates an integer involving the next byte, w, according to the formula: + * [(v - 247) x 256] + w + 108 + * + * 3. A CharString byte containing a value, v, between 251 and 254 inclusive, + * indicates an integer involving the next byte, w, according to the formula: + * -[(v - 251) * 256] - w - 108 + * + * 4. A CharString containing the value 255 indicates that the next 4 bytes + * are a two complement signed integer. The first of these bytes contains the + * highest order bits, the second byte contains the next higher order bits + * and the fourth byte contain the lowest order bits. + * + * + * CharString Command Encoding: + * CharStrings commands are encoded in 1 or 2 bytes. + * + * Single byte commands are encoded in 1 byte that contains a value between + * 0 and 31 inclusive. + * If a command byte contains the value 12, then the value in the next byte + * indicates a command. This "escape" mechanism allows many extra commands + * to be encoded and this encoding technique helps to minimize the length of + * the charStrings. + */ +var Type1CharString = (function Type1CharStringClosure() { + var COMMAND_MAP = { + 'hstem': [1], + 'vstem': [3], + 'vmoveto': [4], + 'rlineto': [5], + 'hlineto': [6], + 'vlineto': [7], + 'rrcurveto': [8], + 'callsubr': [10], + 'flex': [12, 35], + 'drop' : [12, 18], + 'endchar': [14], + 'rmoveto': [21], + 'hmoveto': [22], + 'vhcurveto': [30], + 'hvcurveto': [31] + }; + + function Type1CharString() { + this.width = 0; + this.lsb = 0; + this.flexing = false; + this.output = []; + this.stack = []; + } + + Type1CharString.prototype = { + convert: function Type1CharString_convert(encoded, subrs, + seacAnalysisEnabled) { + var count = encoded.length; + var error = false; + var wx, sbx, subrNumber; + for (var i = 0; i < count; i++) { + var value = encoded[i]; + if (value < 32) { + if (value === 12) { + value = (value << 8) + encoded[++i]; + } + switch (value) { + case 1: // hstem + if (!HINTING_ENABLED) { + this.stack = []; + break; + } + error = this.executeCommand(2, COMMAND_MAP.hstem); + break; + case 3: // vstem + if (!HINTING_ENABLED) { + this.stack = []; + break; + } + error = this.executeCommand(2, COMMAND_MAP.vstem); + break; + case 4: // vmoveto + if (this.flexing) { + if (this.stack.length < 1) { + error = true; + break; + } + // Add the dx for flex and but also swap the values so they are + // the right order. + var dy = this.stack.pop(); + this.stack.push(0, dy); + break; + } + error = this.executeCommand(1, COMMAND_MAP.vmoveto); + break; + case 5: // rlineto + error = this.executeCommand(2, COMMAND_MAP.rlineto); + break; + case 6: // hlineto + error = this.executeCommand(1, COMMAND_MAP.hlineto); + break; + case 7: // vlineto + error = this.executeCommand(1, COMMAND_MAP.vlineto); + break; + case 8: // rrcurveto + error = this.executeCommand(6, COMMAND_MAP.rrcurveto); + break; + case 9: // closepath + // closepath is a Type1 command that does not take argument and is + // useless in Type2 and it can simply be ignored. + this.stack = []; + break; + case 10: // callsubr + if (this.stack.length < 1) { + error = true; + break; + } + subrNumber = this.stack.pop(); + error = this.convert(subrs[subrNumber], subrs, + seacAnalysisEnabled); + break; + case 11: // return + return error; + case 13: // hsbw + if (this.stack.length < 2) { + error = true; + break; + } + // To convert to type2 we have to move the width value to the + // first part of the charstring and then use hmoveto with lsb. + wx = this.stack.pop(); + sbx = this.stack.pop(); + this.lsb = sbx; + this.width = wx; + this.stack.push(wx, sbx); + error = this.executeCommand(2, COMMAND_MAP.hmoveto); + break; + case 14: // endchar + this.output.push(COMMAND_MAP.endchar[0]); + break; + case 21: // rmoveto + if (this.flexing) { + break; + } + error = this.executeCommand(2, COMMAND_MAP.rmoveto); + break; + case 22: // hmoveto + if (this.flexing) { + // Add the dy for flex. + this.stack.push(0); + break; + } + error = this.executeCommand(1, COMMAND_MAP.hmoveto); + break; + case 30: // vhcurveto + error = this.executeCommand(4, COMMAND_MAP.vhcurveto); + break; + case 31: // hvcurveto + error = this.executeCommand(4, COMMAND_MAP.hvcurveto); + break; + case (12 << 8) + 0: // dotsection + // dotsection is a Type1 command to specify some hinting feature + // for dots that do not take a parameter and it can safely be + // ignored for Type2. + this.stack = []; + break; + case (12 << 8) + 1: // vstem3 + if (!HINTING_ENABLED) { + this.stack = []; + break; + } + // [vh]stem3 are Type1 only and Type2 supports [vh]stem with + // multiple parameters, so instead of returning [vh]stem3 take a + // shortcut and return [vhstem] instead. + error = this.executeCommand(2, COMMAND_MAP.vstem); + break; + case (12 << 8) + 2: // hstem3 + if (!HINTING_ENABLED) { + this.stack = []; + break; + } + // See vstem3. + error = this.executeCommand(2, COMMAND_MAP.hstem); + break; + case (12 << 8) + 6: // seac + // seac is like type 2's special endchar but it doesn't use the + // first argument asb, so remove it. + if (seacAnalysisEnabled) { + this.seac = this.stack.splice(-4, 4); + error = this.executeCommand(0, COMMAND_MAP.endchar); + } else { + error = this.executeCommand(4, COMMAND_MAP.endchar); + } + break; + case (12 << 8) + 7: // sbw + if (this.stack.length < 4) { + error = true; + break; + } + // To convert to type2 we have to move the width value to the + // first part of the charstring and then use rmoveto with + // (dx, dy). The height argument will not be used for vmtx and + // vhea tables reconstruction -- ignoring it. + var wy = this.stack.pop(); + wx = this.stack.pop(); + var sby = this.stack.pop(); + sbx = this.stack.pop(); + this.lsb = sbx; + this.width = wx; + this.stack.push(wx, sbx, sby); + error = this.executeCommand(3, COMMAND_MAP.rmoveto); + break; + case (12 << 8) + 12: // div + if (this.stack.length < 2) { + error = true; + break; + } + var num2 = this.stack.pop(); + var num1 = this.stack.pop(); + this.stack.push(num1 / num2); + break; + case (12 << 8) + 16: // callothersubr + if (this.stack.length < 2) { + error = true; + break; + } + subrNumber = this.stack.pop(); + var numArgs = this.stack.pop(); + if (subrNumber === 0 && numArgs === 3) { + var flexArgs = this.stack.splice(this.stack.length - 17, 17); + this.stack.push( + flexArgs[2] + flexArgs[0], // bcp1x + rpx + flexArgs[3] + flexArgs[1], // bcp1y + rpy + flexArgs[4], // bcp2x + flexArgs[5], // bcp2y + flexArgs[6], // p2x + flexArgs[7], // p2y + flexArgs[8], // bcp3x + flexArgs[9], // bcp3y + flexArgs[10], // bcp4x + flexArgs[11], // bcp4y + flexArgs[12], // p3x + flexArgs[13], // p3y + flexArgs[14] // flexDepth + // 15 = finalx unused by flex + // 16 = finaly unused by flex + ); + error = this.executeCommand(13, COMMAND_MAP.flex, true); + this.flexing = false; + this.stack.push(flexArgs[15], flexArgs[16]); + } else if (subrNumber === 1 && numArgs === 0) { + this.flexing = true; + } + break; + case (12 << 8) + 17: // pop + // Ignore this since it is only used with othersubr. + break; + case (12 << 8) + 33: // setcurrentpoint + // Ignore for now. + this.stack = []; + break; + default: + warn('Unknown type 1 charstring command of "' + value + '"'); + break; + } + if (error) { + break; + } + continue; + } else if (value <= 246) { + value = value - 139; + } else if (value <= 250) { + value = ((value - 247) * 256) + encoded[++i] + 108; + } else if (value <= 254) { + value = -((value - 251) * 256) - encoded[++i] - 108; + } else { + value = (encoded[++i] & 0xff) << 24 | (encoded[++i] & 0xff) << 16 | + (encoded[++i] & 0xff) << 8 | (encoded[++i] & 0xff) << 0; + } + this.stack.push(value); + } + return error; + }, + + executeCommand: function(howManyArgs, command, keepStack) { + var stackLength = this.stack.length; + if (howManyArgs > stackLength) { + return true; + } + var start = stackLength - howManyArgs; + for (var i = start; i < stackLength; i++) { + var value = this.stack[i]; + if (value === (value | 0)) { // int + this.output.push(28, (value >> 8) & 0xff, value & 0xff); + } else { // fixed point + value = (65536 * value) | 0; + this.output.push(255, + (value >> 24) & 0xFF, + (value >> 16) & 0xFF, + (value >> 8) & 0xFF, + value & 0xFF); + } + } + this.output.push.apply(this.output, command); + if (keepStack) { + this.stack.splice(start, howManyArgs); + } else { + this.stack.length = 0; + } + return false; + } + }; + + return Type1CharString; +})(); + +/* + * Type1Parser encapsulate the needed code for parsing a Type1 font + * program. Some of its logic depends on the Type2 charstrings + * structure. + * Note: this doesn't really parse the font since that would require evaluation + * of PostScript, but it is possible in most cases to extract what we need + * without a full parse. + */ +var Type1Parser = (function Type1ParserClosure() { + /* + * Decrypt a Sequence of Ciphertext Bytes to Produce the Original Sequence + * of Plaintext Bytes. The function took a key as a parameter which can be + * for decrypting the eexec block of for decoding charStrings. + */ + var EEXEC_ENCRYPT_KEY = 55665; + var CHAR_STRS_ENCRYPT_KEY = 4330; + + function isHexDigit(code) { + return code >= 48 && code <= 57 || // '0'-'9' + code >= 65 && code <= 70 || // 'A'-'F' + code >= 97 && code <= 102; // 'a'-'f' + } + + function decrypt(data, key, discardNumber) { + if (discardNumber >= data.length) { + return new Uint8Array(0); + } + var r = key | 0, c1 = 52845, c2 = 22719, i, j; + for (i = 0; i < discardNumber; i++) { + r = ((data[i] + r) * c1 + c2) & ((1 << 16) - 1); + } + var count = data.length - discardNumber; + var decrypted = new Uint8Array(count); + for (i = discardNumber, j = 0; j < count; i++, j++) { + var value = data[i]; + decrypted[j] = value ^ (r >> 8); + r = ((value + r) * c1 + c2) & ((1 << 16) - 1); + } + return decrypted; + } + + function decryptAscii(data, key, discardNumber) { + var r = key | 0, c1 = 52845, c2 = 22719; + var count = data.length, maybeLength = count >>> 1; + var decrypted = new Uint8Array(maybeLength); + var i, j; + for (i = 0, j = 0; i < count; i++) { + var digit1 = data[i]; + if (!isHexDigit(digit1)) { + continue; + } + i++; + var digit2; + while (i < count && !isHexDigit(digit2 = data[i])) { + i++; + } + if (i < count) { + var value = parseInt(String.fromCharCode(digit1, digit2), 16); + decrypted[j++] = value ^ (r >> 8); + r = ((value + r) * c1 + c2) & ((1 << 16) - 1); + } + } + return Array.prototype.slice.call(decrypted, discardNumber, j); + } + + function isSpecial(c) { + return c === 0x2F || // '/' + c === 0x5B || c === 0x5D || // '[', ']' + c === 0x7B || c === 0x7D || // '{', '}' + c === 0x28 || c === 0x29; // '(', ')' + } + + function Type1Parser(stream, encrypted, seacAnalysisEnabled) { + if (encrypted) { + var data = stream.getBytes(); + var isBinary = !(isHexDigit(data[0]) && isHexDigit(data[1]) && + isHexDigit(data[2]) && isHexDigit(data[3])); + stream = new Stream(isBinary ? decrypt(data, EEXEC_ENCRYPT_KEY, 4) : + decryptAscii(data, EEXEC_ENCRYPT_KEY, 4)); + } + this.seacAnalysisEnabled = !!seacAnalysisEnabled; + + this.stream = stream; + this.nextChar(); + } + + Type1Parser.prototype = { + readNumberArray: function Type1Parser_readNumberArray() { + this.getToken(); // read '[' or '{' (arrays can start with either) + var array = []; + while (true) { + var token = this.getToken(); + if (token === null || token === ']' || token === '}') { + break; + } + array.push(parseFloat(token || 0)); + } + return array; + }, + + readNumber: function Type1Parser_readNumber() { + var token = this.getToken(); + return parseFloat(token || 0); + }, + + readInt: function Type1Parser_readInt() { + // Use '| 0' to prevent setting a double into length such as the double + // does not flow into the loop variable. + var token = this.getToken(); + return parseInt(token || 0, 10) | 0; + }, + + readBoolean: function Type1Parser_readBoolean() { + var token = this.getToken(); + + // Use 1 and 0 since that's what type2 charstrings use. + return token === 'true' ? 1 : 0; + }, + + nextChar : function Type1_nextChar() { + return (this.currentChar = this.stream.getByte()); + }, + + getToken: function Type1Parser_getToken() { + // Eat whitespace and comments. + var comment = false; + var ch = this.currentChar; + while (true) { + if (ch === -1) { + return null; + } + + if (comment) { + if (ch === 0x0A || ch === 0x0D) { + comment = false; + } + } else if (ch === 0x25) { // '%' + comment = true; + } else if (!Lexer.isSpace(ch)) { + break; + } + ch = this.nextChar(); + } + if (isSpecial(ch)) { + this.nextChar(); + return String.fromCharCode(ch); + } + var token = ''; + do { + token += String.fromCharCode(ch); + ch = this.nextChar(); + } while (ch >= 0 && !Lexer.isSpace(ch) && !isSpecial(ch)); + return token; + }, + + /* + * Returns an object containing a Subrs array and a CharStrings + * array extracted from and eexec encrypted block of data + */ + extractFontProgram: function Type1Parser_extractFontProgram() { + var stream = this.stream; + + var subrs = [], charstrings = []; + var privateData = Object.create(null); + privateData['lenIV'] = 4; + var program = { + subrs: [], + charstrings: [], + properties: { + 'privateData': privateData + } + }; + var token, length, data, lenIV, encoded; + while ((token = this.getToken()) !== null) { + if (token !== '/') { + continue; + } + token = this.getToken(); + switch (token) { + case 'CharStrings': + // The number immediately following CharStrings must be greater or + // equal to the number of CharStrings. + this.getToken(); + this.getToken(); // read in 'dict' + this.getToken(); // read in 'dup' + this.getToken(); // read in 'begin' + while(true) { + token = this.getToken(); + if (token === null || token === 'end') { + break; + } + + if (token !== '/') { + continue; + } + var glyph = this.getToken(); + length = this.readInt(); + this.getToken(); // read in 'RD' or '-|' + data = stream.makeSubStream(stream.pos, length); + lenIV = program.properties.privateData['lenIV']; + encoded = decrypt(data.getBytes(), CHAR_STRS_ENCRYPT_KEY, lenIV); + // Skip past the required space and binary data. + stream.skip(length); + this.nextChar(); + token = this.getToken(); // read in 'ND' or '|-' + if (token === 'noaccess') { + this.getToken(); // read in 'def' + } + charstrings.push({ + glyph: glyph, + encoded: encoded + }); + } + break; + case 'Subrs': + var num = this.readInt(); + this.getToken(); // read in 'array' + while ((token = this.getToken()) === 'dup') { + var index = this.readInt(); + length = this.readInt(); + this.getToken(); // read in 'RD' or '-|' + data = stream.makeSubStream(stream.pos, length); + lenIV = program.properties.privateData['lenIV']; + encoded = decrypt(data.getBytes(), CHAR_STRS_ENCRYPT_KEY, lenIV); + // Skip past the required space and binary data. + stream.skip(length); + this.nextChar(); + token = this.getToken(); // read in 'NP' or '|' + if (token === 'noaccess') { + this.getToken(); // read in 'put' + } + subrs[index] = encoded; + } + break; + case 'BlueValues': + case 'OtherBlues': + case 'FamilyBlues': + case 'FamilyOtherBlues': + var blueArray = this.readNumberArray(); + // *Blue* values may contain invalid data: disables reading of + // those values when hinting is disabled. + if (blueArray.length > 0 && (blueArray.length % 2) === 0 && + HINTING_ENABLED) { + program.properties.privateData[token] = blueArray; + } + break; + case 'StemSnapH': + case 'StemSnapV': + program.properties.privateData[token] = this.readNumberArray(); + break; + case 'StdHW': + case 'StdVW': + program.properties.privateData[token] = + this.readNumberArray()[0]; + break; + case 'BlueShift': + case 'lenIV': + case 'BlueFuzz': + case 'BlueScale': + case 'LanguageGroup': + case 'ExpansionFactor': + program.properties.privateData[token] = this.readNumber(); + break; + case 'ForceBold': + program.properties.privateData[token] = this.readBoolean(); + break; + } + } + + for (var i = 0; i < charstrings.length; i++) { + glyph = charstrings[i].glyph; + encoded = charstrings[i].encoded; + var charString = new Type1CharString(); + var error = charString.convert(encoded, subrs, + this.seacAnalysisEnabled); + var output = charString.output; + if (error) { + // It seems when FreeType encounters an error while evaluating a glyph + // that it completely ignores the glyph so we'll mimic that behaviour + // here and put an endchar to make the validator happy. + output = [14]; + } + program.charstrings.push({ + glyphName: glyph, + charstring: output, + width: charString.width, + lsb: charString.lsb, + seac: charString.seac + }); + } + + return program; + }, + + extractFontHeader: function Type1Parser_extractFontHeader(properties) { + var token; + while ((token = this.getToken()) !== null) { + if (token !== '/') { + continue; + } + token = this.getToken(); + switch (token) { + case 'FontMatrix': + var matrix = this.readNumberArray(); + properties.fontMatrix = matrix; + break; + case 'Encoding': + var encodingArg = this.getToken(); + var encoding; + if (!/^\d+$/.test(encodingArg)) { + // encoding name is specified + encoding = getEncoding(encodingArg); + } else { + encoding = []; + var size = parseInt(encodingArg, 10) | 0; + this.getToken(); // read in 'array' + + for (var j = 0; j < size; j++) { + token = this.getToken(); + // skipping till first dup or def (e.g. ignoring for statement) + while (token !== 'dup' && token !== 'def') { + token = this.getToken(); + if (token === null) { + return; // invalid header + } + } + if (token === 'def') { + break; // read all array data + } + var index = this.readInt(); + this.getToken(); // read in '/' + var glyph = this.getToken(); + encoding[index] = glyph; + this.getToken(); // read the in 'put' + } + } + properties.builtInEncoding = encoding; + break; + case 'FontBBox': + var fontBBox = this.readNumberArray(); + // adjusting ascent/descent + properties.ascent = fontBBox[3]; + properties.descent = fontBBox[1]; + properties.ascentScaled = true; + break; + } + } + } + }; + + return Type1Parser; +})(); + +exports.Type1Parser = Type1Parser; +})); diff --git a/test/unit/font_spec.js b/test/unit/font_spec.js index d8815165b3eed..3d8e1880776fa 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() { @@ -302,7 +297,7 @@ describe('font', function() { it('splits tokens', function() { var stream = new StringStream('/BlueValues[-17 0]noaccess def'); - var parser = new Type1Parser(stream); + var parser = new Type1Parser(stream, false, SEAC_ANALYSIS_ENABLED); expect(parser.getToken()).toEqual('/'); expect(parser.getToken()).toEqual('BlueValues'); expect(parser.getToken()).toEqual('['); @@ -315,35 +310,35 @@ describe('font', function() { }); it('handles glued tokens', function() { var stream = new StringStream('dup/CharStrings'); - var parser = new Type1Parser(stream); + var parser = new Type1Parser(stream, false, SEAC_ANALYSIS_ENABLED); expect(parser.getToken()).toEqual('dup'); expect(parser.getToken()).toEqual('/'); expect(parser.getToken()).toEqual('CharStrings'); }); it('ignores whitespace', function() { var stream = new StringStream('\nab c\t'); - var parser = new Type1Parser(stream); + var parser = new Type1Parser(stream, false, SEAC_ANALYSIS_ENABLED); expect(parser.getToken()).toEqual('ab'); expect(parser.getToken()).toEqual('c'); }); it('parses numbers', function() { var stream = new StringStream('123'); - var parser = new Type1Parser(stream); + var parser = new Type1Parser(stream, false, SEAC_ANALYSIS_ENABLED); expect(parser.readNumber()).toEqual(123); }); it('parses booleans', function() { var stream = new StringStream('true false'); - var parser = new Type1Parser(stream); + var parser = new Type1Parser(stream, false, SEAC_ANALYSIS_ENABLED); expect(parser.readBoolean()).toEqual(1); expect(parser.readBoolean()).toEqual(0); }); it('parses number arrays', function() { var stream = new StringStream('[1 2]'); - var parser = new Type1Parser(stream); + var parser = new Type1Parser(stream, false, SEAC_ANALYSIS_ENABLED); expect(parser.readNumberArray()).toEqual([1, 2]); // Variation on spacing. stream = new StringStream('[ 1 2 ]'); - parser = new Type1Parser(stream); + parser = new Type1Parser(stream, false, SEAC_ANALYSIS_ENABLED); expect(parser.readNumberArray()).toEqual([1, 2]); }); it('skips comments', function() { @@ -352,7 +347,7 @@ describe('font', function() { '%%Title: CMSY10\n' + '%Version: 003.002\n' + 'FontDirectory'); - var parser = new Type1Parser(stream); + var parser = new Type1Parser(stream, false, SEAC_ANALYSIS_ENABLED); expect(parser.getToken()).toEqual('FontDirectory'); }); it('parses font program', function() { @@ -364,7 +359,7 @@ describe('font', function() { '/CharStrings 46 dict dup begin\n' + '/.notdef 1 RD x ND' + '\n' + 'end'); - var parser = new Type1Parser(stream); + var parser = new Type1Parser(stream, false, SEAC_ANALYSIS_ENABLED); var program = parser.extractFontProgram(); expect(program.charstrings.length).toEqual(1); expect(program.properties.privateData.ExpansionFactor).toEqual(99); @@ -372,7 +367,7 @@ describe('font', function() { it('parses font header font matrix', function() { var stream = new StringStream( '/FontMatrix [0.001 0 0 0.001 0 0 ]readonly def\n'); - var parser = new Type1Parser(stream); + var parser = new Type1Parser(stream, false, SEAC_ANALYSIS_ENABLED); var props = {}; parser.extractFontHeader(props); expect(props.fontMatrix).toEqual([0.001, 0, 0, 0.001, 0, 0]); @@ -383,7 +378,7 @@ describe('font', function() { '0 1 255 {1 index exch /.notdef put} for\n' + 'dup 33 /arrowright put\n' + 'readonly def\n'); - var parser = new Type1Parser(stream); + var parser = new Type1Parser(stream, false, SEAC_ANALYSIS_ENABLED); var props = { overridableEncoding: true }; parser.extractFontHeader(props); expect(props.builtInEncoding[33]).toEqual('arrowright'); diff --git a/test/unit/jasmine-boot.js b/test/unit/jasmine-boot.js index 2c344c53faa10..8ae3bda0a94be 100644 --- a/test/unit/jasmine-boot.js +++ b/test/unit/jasmine-boot.js @@ -48,12 +48,14 @@ 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/type1_parser', + '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) { + coreType1Parser, coreCFFParser, displayAPI, displayMetadata, + displayDOMUtils) { pdfjsLibs = { sharedUtil: sharedUtil, @@ -70,6 +72,8 @@ function initializePDFJS(callback) { coreCMap: coreCMap, coreWorker: coreWorker, coreNetwork: coreNetwork, + coreType1Parser: coreType1Parser, + coreCFFParser: coreCFFParser, displayAPI: displayAPI, displayMetadata: displayMetadata, displayDOMUtils: displayDOMUtils