/* Copyright 2017 Mozilla Foundation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ 'use strict'; Object.defineProperty(exports, "__esModule", { value: true }); exports.getFontType = exports.ProblematicCharRanges = exports.IdentityToUnicodeMap = exports.ToUnicodeMap = exports.FontFlags = exports.Font = exports.ErrorFont = exports.PRIVATE_USE_OFFSET_END = exports.PRIVATE_USE_OFFSET_START = exports.SEAC_ANALYSIS_ENABLED = undefined; var _util = require('../shared/util'); var _cff_parser = require('./cff_parser'); var _glyphlist = require('./glyphlist'); var _encodings = require('./encodings'); var _standard_fonts = require('./standard_fonts'); var _unicode = require('./unicode'); var _font_renderer = require('./font_renderer'); var _stream = require('./stream'); var _type1_parser = require('./type1_parser'); var PRIVATE_USE_OFFSET_START = 0xE000; var PRIVATE_USE_OFFSET_END = 0xF8FF; var SKIP_PRIVATE_USE_RANGE_F000_TO_F01F = false; var PDF_GLYPH_SPACE_UNITS = 1000; var SEAC_ANALYSIS_ENABLED = false; var FontFlags = { FixedPitch: 1, Serif: 2, Symbolic: 4, Script: 8, Nonsymbolic: 32, Italic: 64, AllCap: 65536, SmallCap: 131072, ForceBold: 262144 }; var MacStandardGlyphOrdering = ['.notdef', '.null', 'nonmarkingreturn', 'space', 'exclam', 'quotedbl', 'numbersign', 'dollar', 'percent', 'ampersand', 'quotesingle', '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', 'grave', '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', 'Adieresis', 'Aring', 'Ccedilla', 'Eacute', 'Ntilde', 'Odieresis', 'Udieresis', 'aacute', 'agrave', 'acircumflex', 'adieresis', 'atilde', 'aring', 'ccedilla', 'eacute', 'egrave', 'ecircumflex', 'edieresis', 'iacute', 'igrave', 'icircumflex', 'idieresis', 'ntilde', 'oacute', 'ograve', 'ocircumflex', 'odieresis', 'otilde', 'uacute', 'ugrave', 'ucircumflex', 'udieresis', 'dagger', 'degree', 'cent', 'sterling', 'section', 'bullet', 'paragraph', 'germandbls', 'registered', 'copyright', 'trademark', 'acute', 'dieresis', 'notequal', 'AE', 'Oslash', 'infinity', 'plusminus', 'lessequal', 'greaterequal', 'yen', 'mu', 'partialdiff', 'summation', 'product', 'pi', 'integral', 'ordfeminine', 'ordmasculine', 'Omega', 'ae', 'oslash', 'questiondown', 'exclamdown', 'logicalnot', 'radical', 'florin', 'approxequal', 'Delta', 'guillemotleft', 'guillemotright', 'ellipsis', 'nonbreakingspace', 'Agrave', 'Atilde', 'Otilde', 'OE', 'oe', 'endash', 'emdash', 'quotedblleft', 'quotedblright', 'quoteleft', 'quoteright', 'divide', 'lozenge', 'ydieresis', 'Ydieresis', 'fraction', 'currency', 'guilsinglleft', 'guilsinglright', 'fi', 'fl', 'daggerdbl', 'periodcentered', 'quotesinglbase', 'quotedblbase', 'perthousand', 'Acircumflex', 'Ecircumflex', 'Aacute', 'Edieresis', 'Egrave', 'Iacute', 'Icircumflex', 'Idieresis', 'Igrave', 'Oacute', 'Ocircumflex', 'apple', 'Ograve', 'Uacute', 'Ucircumflex', 'Ugrave', 'dotlessi', 'circumflex', 'tilde', 'macron', 'breve', 'dotaccent', 'ring', 'cedilla', 'hungarumlaut', 'ogonek', 'caron', 'Lslash', 'lslash', 'Scaron', 'scaron', 'Zcaron', 'zcaron', 'brokenbar', 'Eth', 'eth', 'Yacute', 'yacute', 'Thorn', 'thorn', 'minus', 'multiply', 'onesuperior', 'twosuperior', 'threesuperior', 'onehalf', 'onequarter', 'threequarters', 'franc', 'Gbreve', 'gbreve', 'Idotaccent', 'Scedilla', 'scedilla', 'Cacute', 'cacute', 'Ccaron', 'ccaron', 'dcroat']; function adjustWidths(properties) { if (!properties.fontMatrix) { return; } if (properties.fontMatrix[0] === _util.FONT_IDENTITY_MATRIX[0]) { return; } var scale = 0.001 / properties.fontMatrix[0]; var glyphsWidths = properties.widths; for (var glyph in glyphsWidths) { glyphsWidths[glyph] *= scale; } properties.defaultWidth *= scale; } function adjustToUnicode(properties, builtInEncoding) { if (properties.hasIncludedToUnicodeMap) { return; } if (properties.hasEncoding) { return; } if (builtInEncoding === properties.defaultEncoding) { return; } if (properties.toUnicode instanceof IdentityToUnicodeMap) { return; } var toUnicode = [], glyphsUnicodeMap = (0, _glyphlist.getGlyphsUnicode)(); for (var charCode in builtInEncoding) { var glyphName = builtInEncoding[charCode]; var unicode = (0, _unicode.getUnicodeForGlyph)(glyphName, glyphsUnicodeMap); if (unicode !== -1) { toUnicode[charCode] = String.fromCharCode(unicode); } } properties.toUnicode.amend(toUnicode); } function getFontType(type, subtype) { switch (type) { case 'Type1': return subtype === 'Type1C' ? _util.FontType.TYPE1C : _util.FontType.TYPE1; case 'CIDFontType0': return subtype === 'CIDFontType0C' ? _util.FontType.CIDFONTTYPE0C : _util.FontType.CIDFONTTYPE0; case 'OpenType': return _util.FontType.OPENTYPE; case 'TrueType': return _util.FontType.TRUETYPE; case 'CIDFontType2': return _util.FontType.CIDFONTTYPE2; case 'MMType1': return _util.FontType.MMTYPE1; case 'Type0': return _util.FontType.TYPE0; default: return _util.FontType.UNKNOWN; } } function recoverGlyphName(name, glyphsUnicodeMap) { if (glyphsUnicodeMap[name] !== undefined) { return name; } var unicode = (0, _unicode.getUnicodeForGlyph)(name, glyphsUnicodeMap); if (unicode !== -1) { for (var key in glyphsUnicodeMap) { if (glyphsUnicodeMap[key] === unicode) { return key; } } } (0, _util.info)('Unable to recover a standard glyph name for: ' + name); return name; } var Glyph = function GlyphClosure() { function Glyph(fontChar, unicode, accent, width, vmetric, operatorListId, isSpace, isInFont) { this.fontChar = fontChar; this.unicode = unicode; this.accent = accent; this.width = width; this.vmetric = vmetric; this.operatorListId = operatorListId; this.isSpace = isSpace; this.isInFont = isInFont; } Glyph.prototype.matchesForCache = function (fontChar, unicode, accent, width, vmetric, operatorListId, isSpace, isInFont) { return this.fontChar === fontChar && this.unicode === unicode && this.accent === accent && this.width === width && this.vmetric === vmetric && this.operatorListId === operatorListId && this.isSpace === isSpace && this.isInFont === isInFont; }; return Glyph; }(); var ToUnicodeMap = function ToUnicodeMapClosure() { function ToUnicodeMap(cmap) { this._map = cmap; } ToUnicodeMap.prototype = { get length() { return this._map.length; }, forEach: function forEach(callback) { for (var charCode in this._map) { callback(charCode, this._map[charCode].charCodeAt(0)); } }, has: function has(i) { return this._map[i] !== undefined; }, get: function get(i) { return this._map[i]; }, charCodeOf: function charCodeOf(value) { var map = this._map; if (map.length <= 0x10000) { return map.indexOf(value); } for (var charCode in map) { if (map[charCode] === value) { return charCode | 0; } } return -1; }, amend: function amend(map) { for (var charCode in map) { this._map[charCode] = map[charCode]; } } }; return ToUnicodeMap; }(); var IdentityToUnicodeMap = function IdentityToUnicodeMapClosure() { function IdentityToUnicodeMap(firstChar, lastChar) { this.firstChar = firstChar; this.lastChar = lastChar; } IdentityToUnicodeMap.prototype = { get length() { return this.lastChar + 1 - this.firstChar; }, forEach: function forEach(callback) { for (var i = this.firstChar, ii = this.lastChar; i <= ii; i++) { callback(i, i); } }, has: function has(i) { return this.firstChar <= i && i <= this.lastChar; }, get: function get(i) { if (this.firstChar <= i && i <= this.lastChar) { return String.fromCharCode(i); } return undefined; }, charCodeOf: function charCodeOf(v) { return (0, _util.isInt)(v) && v >= this.firstChar && v <= this.lastChar ? v : -1; }, amend: function amend(map) { throw new Error('Should not call amend()'); } }; return IdentityToUnicodeMap; }(); var OpenTypeFileBuilder = function OpenTypeFileBuilderClosure() { function writeInt16(dest, offset, num) { dest[offset] = num >> 8 & 0xFF; dest[offset + 1] = num & 0xFF; } function writeInt32(dest, offset, num) { dest[offset] = num >> 24 & 0xFF; dest[offset + 1] = num >> 16 & 0xFF; dest[offset + 2] = num >> 8 & 0xFF; dest[offset + 3] = num & 0xFF; } function writeData(dest, offset, data) { var i, ii; if (data instanceof Uint8Array) { dest.set(data, offset); } else if (typeof data === 'string') { for (i = 0, ii = data.length; i < ii; i++) { dest[offset++] = data.charCodeAt(i) & 0xFF; } } else { for (i = 0, ii = data.length; i < ii; i++) { dest[offset++] = data[i] & 0xFF; } } } function OpenTypeFileBuilder(sfnt) { this.sfnt = sfnt; this.tables = Object.create(null); } OpenTypeFileBuilder.getSearchParams = function OpenTypeFileBuilder_getSearchParams(entriesCount, entrySize) { var maxPower2 = 1, log2 = 0; while ((maxPower2 ^ entriesCount) > maxPower2) { maxPower2 <<= 1; log2++; } var searchRange = maxPower2 * entrySize; return { range: searchRange, entry: log2, rangeShift: entrySize * entriesCount - searchRange }; }; var OTF_HEADER_SIZE = 12; var OTF_TABLE_ENTRY_SIZE = 16; OpenTypeFileBuilder.prototype = { toArray: function OpenTypeFileBuilder_toArray() { var sfnt = this.sfnt; var tables = this.tables; var tablesNames = Object.keys(tables); tablesNames.sort(); var numTables = tablesNames.length; var i, j, jj, table, tableName; var offset = OTF_HEADER_SIZE + numTables * OTF_TABLE_ENTRY_SIZE; var tableOffsets = [offset]; for (i = 0; i < numTables; i++) { table = tables[tablesNames[i]]; var paddedLength = (table.length + 3 & ~3) >>> 0; offset += paddedLength; tableOffsets.push(offset); } var file = new Uint8Array(offset); for (i = 0; i < numTables; i++) { table = tables[tablesNames[i]]; writeData(file, tableOffsets[i], table); } if (sfnt === 'true') { sfnt = (0, _util.string32)(0x00010000); } file[0] = sfnt.charCodeAt(0) & 0xFF; file[1] = sfnt.charCodeAt(1) & 0xFF; file[2] = sfnt.charCodeAt(2) & 0xFF; file[3] = sfnt.charCodeAt(3) & 0xFF; writeInt16(file, 4, numTables); var searchParams = OpenTypeFileBuilder.getSearchParams(numTables, 16); writeInt16(file, 6, searchParams.range); writeInt16(file, 8, searchParams.entry); writeInt16(file, 10, searchParams.rangeShift); offset = OTF_HEADER_SIZE; for (i = 0; i < numTables; i++) { tableName = tablesNames[i]; file[offset] = tableName.charCodeAt(0) & 0xFF; file[offset + 1] = tableName.charCodeAt(1) & 0xFF; file[offset + 2] = tableName.charCodeAt(2) & 0xFF; file[offset + 3] = tableName.charCodeAt(3) & 0xFF; var checksum = 0; for (j = tableOffsets[i], jj = tableOffsets[i + 1]; j < jj; j += 4) { var quad = (0, _util.readUint32)(file, j); checksum = checksum + quad >>> 0; } writeInt32(file, offset + 4, checksum); writeInt32(file, offset + 8, tableOffsets[i]); writeInt32(file, offset + 12, tables[tableName].length); offset += OTF_TABLE_ENTRY_SIZE; } return file; }, addTable: function OpenTypeFileBuilder_addTable(tag, data) { if (tag in this.tables) { throw new Error('Table ' + tag + ' already exists'); } this.tables[tag] = data; } }; return OpenTypeFileBuilder; }(); var ProblematicCharRanges = new Int32Array([0x0000, 0x0020, 0x007F, 0x00A1, 0x00AD, 0x00AE, 0x0600, 0x0780, 0x08A0, 0x10A0, 0x1780, 0x1800, 0x1C00, 0x1C50, 0x2000, 0x2010, 0x2011, 0x2012, 0x2028, 0x2030, 0x205F, 0x2070, 0x25CC, 0x25CD, 0x3000, 0x3001, 0x3164, 0x3165, 0xAA60, 0xAA80, 0xFFF0, 0x10000]); var Font = function FontClosure() { function Font(name, file, properties) { var charCode; this.name = name; this.loadedName = properties.loadedName; this.isType3Font = properties.isType3Font; this.sizes = []; this.missingFile = false; this.glyphCache = Object.create(null); this.isSerifFont = !!(properties.flags & FontFlags.Serif); this.isSymbolicFont = !!(properties.flags & FontFlags.Symbolic); this.isMonospace = !!(properties.flags & FontFlags.FixedPitch); var type = properties.type; var subtype = properties.subtype; this.type = type; this.subtype = subtype; this.fallbackName = this.isMonospace ? 'monospace' : this.isSerifFont ? 'serif' : 'sans-serif'; this.differences = properties.differences; this.widths = properties.widths; this.defaultWidth = properties.defaultWidth; this.composite = properties.composite; this.wideChars = properties.wideChars; this.cMap = properties.cMap; this.ascent = properties.ascent / PDF_GLYPH_SPACE_UNITS; this.descent = properties.descent / PDF_GLYPH_SPACE_UNITS; this.fontMatrix = properties.fontMatrix; this.bbox = properties.bbox; this.defaultEncoding = properties.defaultEncoding; this.toUnicode = properties.toUnicode; this.toFontChar = []; if (properties.type === 'Type3') { for (charCode = 0; charCode < 256; charCode++) { this.toFontChar[charCode] = this.differences[charCode] || properties.defaultEncoding[charCode]; } this.fontType = _util.FontType.TYPE3; return; } this.cidEncoding = properties.cidEncoding; this.vertical = properties.vertical; if (this.vertical) { this.vmetrics = properties.vmetrics; this.defaultVMetrics = properties.defaultVMetrics; } if (!file || file.isEmpty) { if (file) { (0, _util.warn)('Font file is empty in "' + name + '" (' + this.loadedName + ')'); } this.fallbackToSystemFont(); return; } if (subtype === 'Type1C') { if (type !== 'Type1' && type !== 'MMType1') { if (isTrueTypeFile(file)) { subtype = 'TrueType'; } else { type = 'Type1'; } } else if (isOpenTypeFile(file)) { subtype = 'OpenType'; } } if (subtype === 'CIDFontType0C' && type !== 'CIDFontType0') { type = 'CIDFontType0'; } if (type === 'CIDFontType0') { if (isType1File(file)) { subtype = 'CIDFontType0'; } else if (isOpenTypeFile(file)) { subtype = 'OpenType'; } else { subtype = 'CIDFontType0C'; } } if (subtype === 'OpenType' && type !== 'OpenType') { type = 'OpenType'; } try { var data; switch (type) { case 'MMType1': (0, _util.info)('MMType1 font (' + name + '), falling back to Type1.'); case 'Type1': case 'CIDFontType0': this.mimetype = 'font/opentype'; var cff = subtype === 'Type1C' || subtype === 'CIDFontType0C' ? new CFFFont(file, properties) : new Type1Font(name, file, properties); adjustWidths(properties); data = this.convert(name, cff, properties); break; case 'OpenType': case 'TrueType': case 'CIDFontType2': this.mimetype = 'font/opentype'; data = this.checkAndRepair(name, file, properties); if (this.isOpenType) { adjustWidths(properties); type = 'OpenType'; } break; default: throw new _util.FormatError('Font ' + type + ' is not supported'); } } catch (e) { if (!(e instanceof _util.FormatError)) { throw e; } (0, _util.warn)(e); this.fallbackToSystemFont(); return; } this.data = data; this.fontType = getFontType(type, subtype); this.fontMatrix = properties.fontMatrix; this.widths = properties.widths; this.defaultWidth = properties.defaultWidth; this.toUnicode = properties.toUnicode; this.encoding = properties.baseEncoding; this.seacMap = properties.seacMap; this.loading = true; } Font.getFontID = function () { var ID = 1; return function Font_getFontID() { return String(ID++); }; }(); function int16(b0, b1) { return (b0 << 8) + b1; } function signedInt16(b0, b1) { var value = (b0 << 8) + b1; return value & 1 << 15 ? value - 0x10000 : value; } function int32(b0, b1, b2, b3) { return (b0 << 24) + (b1 << 16) + (b2 << 8) + b3; } function string16(value) { return String.fromCharCode(value >> 8 & 0xff, value & 0xff); } function safeString16(value) { value = value > 0x7FFF ? 0x7FFF : value < -0x8000 ? -0x8000 : value; return String.fromCharCode(value >> 8 & 0xff, value & 0xff); } function isTrueTypeFile(file) { var header = file.peekBytes(4); return (0, _util.readUint32)(header, 0) === 0x00010000; } function isOpenTypeFile(file) { var header = file.peekBytes(4); return (0, _util.bytesToString)(header) === 'OTTO'; } function isType1File(file) { var header = file.peekBytes(2); if (header[0] === 0x25 && header[1] === 0x21) { return true; } if (header[0] === 0x80 && header[1] === 0x01) { return true; } return false; } function buildToFontChar(encoding, glyphsUnicodeMap, differences) { var toFontChar = [], unicode; for (var i = 0, ii = encoding.length; i < ii; i++) { unicode = (0, _unicode.getUnicodeForGlyph)(encoding[i], glyphsUnicodeMap); if (unicode !== -1) { toFontChar[i] = unicode; } } for (var charCode in differences) { unicode = (0, _unicode.getUnicodeForGlyph)(differences[charCode], glyphsUnicodeMap); if (unicode !== -1) { toFontChar[+charCode] = unicode; } } return toFontChar; } function isProblematicUnicodeLocation(code) { var i = 0, j = ProblematicCharRanges.length - 1; while (i < j) { var c = i + j + 1 >> 1; if (code < ProblematicCharRanges[c]) { j = c - 1; } else { i = c; } } return !(i & 1); } function adjustMapping(charCodeToGlyphId, properties, missingGlyphs) { var toUnicode = properties.toUnicode; var isSymbolic = !!(properties.flags & FontFlags.Symbolic); var isIdentityUnicode = properties.toUnicode instanceof IdentityToUnicodeMap; var newMap = Object.create(null); var toFontChar = []; var usedFontCharCodes = []; var nextAvailableFontCharCode = PRIVATE_USE_OFFSET_START; for (var originalCharCode in charCodeToGlyphId) { originalCharCode |= 0; var glyphId = charCodeToGlyphId[originalCharCode]; if (missingGlyphs[glyphId]) { continue; } var fontCharCode = originalCharCode; var hasUnicodeValue = false; if (!isIdentityUnicode && toUnicode.has(originalCharCode)) { hasUnicodeValue = true; var unicode = toUnicode.get(fontCharCode); if (unicode.length === 1) { fontCharCode = unicode.charCodeAt(0); } } if (usedFontCharCodes[fontCharCode] !== undefined || isProblematicUnicodeLocation(fontCharCode) || isSymbolic && !hasUnicodeValue) { do { if (nextAvailableFontCharCode > PRIVATE_USE_OFFSET_END) { (0, _util.warn)('Ran out of space in font private use area.'); break; } fontCharCode = nextAvailableFontCharCode++; if (SKIP_PRIVATE_USE_RANGE_F000_TO_F01F && fontCharCode === 0xF000) { fontCharCode = 0xF020; nextAvailableFontCharCode = fontCharCode + 1; } } while (usedFontCharCodes[fontCharCode] !== undefined); } newMap[fontCharCode] = glyphId; toFontChar[originalCharCode] = fontCharCode; usedFontCharCodes[fontCharCode] = true; } return { toFontChar: toFontChar, charCodeToGlyphId: newMap, nextAvailableFontCharCode: nextAvailableFontCharCode }; } function getRanges(glyphs, numGlyphs) { var codes = []; for (var charCode in glyphs) { if (glyphs[charCode] >= numGlyphs) { continue; } codes.push({ fontCharCode: charCode | 0, glyphId: glyphs[charCode] }); } if (codes.length === 0) { codes.push({ fontCharCode: 0, glyphId: 0 }); } codes.sort(function fontGetRangesSort(a, b) { return a.fontCharCode - b.fontCharCode; }); var ranges = []; var length = codes.length; for (var n = 0; n < length;) { var start = codes[n].fontCharCode; var codeIndices = [codes[n].glyphId]; ++n; var end = start; while (n < length && end + 1 === codes[n].fontCharCode) { codeIndices.push(codes[n].glyphId); ++end; ++n; if (end === 0xFFFF) { break; } } ranges.push([start, end, codeIndices]); } return ranges; } function createCmapTable(glyphs, numGlyphs) { var ranges = getRanges(glyphs, numGlyphs); var numTables = ranges[ranges.length - 1][1] > 0xFFFF ? 2 : 1; var cmap = '\x00\x00' + string16(numTables) + '\x00\x03' + '\x00\x01' + (0, _util.string32)(4 + numTables * 8); var i, ii, j, jj; for (i = ranges.length - 1; i >= 0; --i) { if (ranges[i][0] <= 0xFFFF) { break; } } var bmpLength = i + 1; if (ranges[i][0] < 0xFFFF && ranges[i][1] === 0xFFFF) { ranges[i][1] = 0xFFFE; } var trailingRangesCount = ranges[i][1] < 0xFFFF ? 1 : 0; var segCount = bmpLength + trailingRangesCount; var searchParams = OpenTypeFileBuilder.getSearchParams(segCount, 2); var startCount = ''; var endCount = ''; var idDeltas = ''; var idRangeOffsets = ''; var glyphsIds = ''; var bias = 0; var range, start, end, codes; for (i = 0, ii = bmpLength; i < ii; i++) { range = ranges[i]; start = range[0]; end = range[1]; startCount += string16(start); endCount += string16(end); codes = range[2]; var contiguous = true; for (j = 1, jj = codes.length; j < jj; ++j) { if (codes[j] !== codes[j - 1] + 1) { contiguous = false; break; } } if (!contiguous) { var offset = (segCount - i) * 2 + bias * 2; bias += end - start + 1; idDeltas += string16(0); idRangeOffsets += string16(offset); for (j = 0, jj = codes.length; j < jj; ++j) { glyphsIds += string16(codes[j]); } } else { var startCode = codes[0]; idDeltas += string16(startCode - start & 0xFFFF); idRangeOffsets += string16(0); } } if (trailingRangesCount > 0) { endCount += '\xFF\xFF'; startCount += '\xFF\xFF'; idDeltas += '\x00\x01'; idRangeOffsets += '\x00\x00'; } var format314 = '\x00\x00' + string16(2 * segCount) + string16(searchParams.range) + string16(searchParams.entry) + string16(searchParams.rangeShift) + endCount + '\x00\x00' + startCount + idDeltas + idRangeOffsets + glyphsIds; var format31012 = ''; var header31012 = ''; if (numTables > 1) { cmap += '\x00\x03' + '\x00\x0A' + (0, _util.string32)(4 + numTables * 8 + 4 + format314.length); format31012 = ''; for (i = 0, ii = ranges.length; i < ii; i++) { range = ranges[i]; start = range[0]; codes = range[2]; var code = codes[0]; for (j = 1, jj = codes.length; j < jj; ++j) { if (codes[j] !== codes[j - 1] + 1) { end = range[0] + j - 1; format31012 += (0, _util.string32)(start) + (0, _util.string32)(end) + (0, _util.string32)(code); start = end + 1; code = codes[j]; } } format31012 += (0, _util.string32)(start) + (0, _util.string32)(range[1]) + (0, _util.string32)(code); } header31012 = '\x00\x0C' + '\x00\x00' + (0, _util.string32)(format31012.length + 16) + '\x00\x00\x00\x00' + (0, _util.string32)(format31012.length / 12); } return cmap + '\x00\x04' + string16(format314.length + 4) + format314 + header31012 + format31012; } function validateOS2Table(os2) { var stream = new _stream.Stream(os2.data); var version = stream.getUint16(); stream.getBytes(60); var selection = stream.getUint16(); if (version < 4 && selection & 0x0300) { return false; } var firstChar = stream.getUint16(); var lastChar = stream.getUint16(); if (firstChar > lastChar) { return false; } stream.getBytes(6); var usWinAscent = stream.getUint16(); if (usWinAscent === 0) { return false; } os2.data[8] = os2.data[9] = 0; return true; } function createOS2Table(properties, charstrings, override) { override = override || { unitsPerEm: 0, yMax: 0, yMin: 0, ascent: 0, descent: 0 }; var ulUnicodeRange1 = 0; var ulUnicodeRange2 = 0; var ulUnicodeRange3 = 0; var ulUnicodeRange4 = 0; var firstCharIndex = null; var lastCharIndex = 0; if (charstrings) { for (var code in charstrings) { code |= 0; if (firstCharIndex > code || !firstCharIndex) { firstCharIndex = code; } if (lastCharIndex < code) { lastCharIndex = code; } var position = (0, _unicode.getUnicodeRangeFor)(code); if (position < 32) { ulUnicodeRange1 |= 1 << position; } else if (position < 64) { ulUnicodeRange2 |= 1 << position - 32; } else if (position < 96) { ulUnicodeRange3 |= 1 << position - 64; } else if (position < 123) { ulUnicodeRange4 |= 1 << position - 96; } else { throw new _util.FormatError('Unicode ranges Bits > 123 are reserved for internal usage'); } } } else { firstCharIndex = 0; lastCharIndex = 255; } var bbox = properties.bbox || [0, 0, 0, 0]; var unitsPerEm = override.unitsPerEm || 1 / (properties.fontMatrix || _util.FONT_IDENTITY_MATRIX)[0]; var scale = properties.ascentScaled ? 1.0 : unitsPerEm / PDF_GLYPH_SPACE_UNITS; var typoAscent = override.ascent || Math.round(scale * (properties.ascent || bbox[3])); var typoDescent = override.descent || Math.round(scale * (properties.descent || bbox[1])); if (typoDescent > 0 && properties.descent > 0 && bbox[1] < 0) { typoDescent = -typoDescent; } var winAscent = override.yMax || typoAscent; var winDescent = -override.yMin || -typoDescent; return '\x00\x03' + '\x02\x24' + '\x01\xF4' + '\x00\x05' + '\x00\x00' + '\x02\x8A' + '\x02\xBB' + '\x00\x00' + '\x00\x8C' + '\x02\x8A' + '\x02\xBB' + '\x00\x00' + '\x01\xDF' + '\x00\x31' + '\x01\x02' + '\x00\x00' + '\x00\x00\x06' + String.fromCharCode(properties.fixedPitch ? 0x09 : 0x00) + '\x00\x00\x00\x00\x00\x00' + (0, _util.string32)(ulUnicodeRange1) + (0, _util.string32)(ulUnicodeRange2) + (0, _util.string32)(ulUnicodeRange3) + (0, _util.string32)(ulUnicodeRange4) + '\x2A\x32\x31\x2A' + string16(properties.italicAngle ? 1 : 0) + string16(firstCharIndex || properties.firstChar) + string16(lastCharIndex || properties.lastChar) + string16(typoAscent) + string16(typoDescent) + '\x00\x64' + string16(winAscent) + string16(winDescent) + '\x00\x00\x00\x00' + '\x00\x00\x00\x00' + string16(properties.xHeight) + string16(properties.capHeight) + string16(0) + string16(firstCharIndex || properties.firstChar) + '\x00\x03'; } function createPostTable(properties) { var angle = Math.floor(properties.italicAngle * Math.pow(2, 16)); return '\x00\x03\x00\x00' + (0, _util.string32)(angle) + '\x00\x00' + '\x00\x00' + (0, _util.string32)(properties.fixedPitch) + '\x00\x00\x00\x00' + '\x00\x00\x00\x00' + '\x00\x00\x00\x00' + '\x00\x00\x00\x00'; } function createNameTable(name, proto) { if (!proto) { proto = [[], []]; } var strings = [proto[0][0] || 'Original licence', proto[0][1] || name, proto[0][2] || 'Unknown', proto[0][3] || 'uniqueID', proto[0][4] || name, proto[0][5] || 'Version 0.11', proto[0][6] || '', proto[0][7] || 'Unknown', proto[0][8] || 'Unknown', proto[0][9] || 'Unknown']; var stringsUnicode = []; var i, ii, j, jj, str; for (i = 0, ii = strings.length; i < ii; i++) { str = proto[1][i] || strings[i]; var strBufUnicode = []; for (j = 0, jj = str.length; j < jj; j++) { strBufUnicode.push(string16(str.charCodeAt(j))); } stringsUnicode.push(strBufUnicode.join('')); } var names = [strings, stringsUnicode]; var platforms = ['\x00\x01', '\x00\x03']; var encodings = ['\x00\x00', '\x00\x01']; var languages = ['\x00\x00', '\x04\x09']; var namesRecordCount = strings.length * platforms.length; var nameTable = '\x00\x00' + string16(namesRecordCount) + string16(namesRecordCount * 12 + 6); var strOffset = 0; for (i = 0, ii = platforms.length; i < ii; i++) { var strs = names[i]; for (j = 0, jj = strs.length; j < jj; j++) { str = strs[j]; var nameRecord = platforms[i] + encodings[i] + languages[i] + string16(j) + string16(str.length) + string16(strOffset); nameTable += nameRecord; strOffset += str.length; } } nameTable += strings.join('') + stringsUnicode.join(''); return nameTable; } Font.prototype = { name: null, font: null, mimetype: null, encoding: null, get renderer() { var renderer = _font_renderer.FontRendererFactory.create(this, SEAC_ANALYSIS_ENABLED); return (0, _util.shadow)(this, 'renderer', renderer); }, exportData: function Font_exportData() { var data = {}; for (var i in this) { if (this.hasOwnProperty(i)) { data[i] = this[i]; } } return data; }, fallbackToSystemFont: function Font_fallbackToSystemFont() { var _this = this; this.missingFile = true; var charCode, unicode; var name = this.name; var type = this.type; var subtype = this.subtype; var fontName = name.replace(/[,_]/g, '-'); var stdFontMap = (0, _standard_fonts.getStdFontMap)(), nonStdFontMap = (0, _standard_fonts.getNonStdFontMap)(); var isStandardFont = !!stdFontMap[fontName] || !!(nonStdFontMap[fontName] && stdFontMap[nonStdFontMap[fontName]]); fontName = stdFontMap[fontName] || nonStdFontMap[fontName] || fontName; this.bold = fontName.search(/bold/gi) !== -1; this.italic = fontName.search(/oblique/gi) !== -1 || fontName.search(/italic/gi) !== -1; this.black = name.search(/Black/g) !== -1; this.remeasure = Object.keys(this.widths).length > 0; if (isStandardFont && type === 'CIDFontType2' && this.cidEncoding.indexOf('Identity-') === 0) { var GlyphMapForStandardFonts = (0, _standard_fonts.getGlyphMapForStandardFonts)(); var map = []; for (charCode in GlyphMapForStandardFonts) { map[+charCode] = GlyphMapForStandardFonts[charCode]; } if (/Arial-?Black/i.test(name)) { var SupplementalGlyphMapForArialBlack = (0, _standard_fonts.getSupplementalGlyphMapForArialBlack)(); for (charCode in SupplementalGlyphMapForArialBlack) { map[+charCode] = SupplementalGlyphMapForArialBlack[charCode]; } } var isIdentityUnicode = this.toUnicode instanceof IdentityToUnicodeMap; if (!isIdentityUnicode) { this.toUnicode.forEach(function (charCode, unicodeCharCode) { map[+charCode] = unicodeCharCode; }); } this.toFontChar = map; this.toUnicode = new ToUnicodeMap(map); } else if (/Symbol/i.test(fontName)) { this.toFontChar = buildToFontChar(_encodings.SymbolSetEncoding, (0, _glyphlist.getGlyphsUnicode)(), this.differences); } else if (/Dingbats/i.test(fontName)) { if (/Wingdings/i.test(name)) { (0, _util.warn)('Non-embedded Wingdings font, falling back to ZapfDingbats.'); } this.toFontChar = buildToFontChar(_encodings.ZapfDingbatsEncoding, (0, _glyphlist.getDingbatsGlyphsUnicode)(), this.differences); } else if (isStandardFont) { this.toFontChar = buildToFontChar(this.defaultEncoding, (0, _glyphlist.getGlyphsUnicode)(), this.differences); } else { var glyphsUnicodeMap = (0, _glyphlist.getGlyphsUnicode)(); this.toUnicode.forEach(function (charCode, unicodeCharCode) { if (!_this.composite) { var glyphName = _this.differences[charCode] || _this.defaultEncoding[charCode]; unicode = (0, _unicode.getUnicodeForGlyph)(glyphName, glyphsUnicodeMap); if (unicode !== -1) { unicodeCharCode = unicode; } } _this.toFontChar[charCode] = unicodeCharCode; }); } this.loadedName = fontName.split('-')[0]; this.loading = false; this.fontType = getFontType(type, subtype); }, checkAndRepair: function Font_checkAndRepair(name, font, properties) { function readTableEntry(file) { var tag = (0, _util.bytesToString)(file.getBytes(4)); var checksum = file.getInt32() >>> 0; var offset = file.getInt32() >>> 0; var length = file.getInt32() >>> 0; var previousPosition = file.pos; file.pos = file.start ? file.start : 0; file.skip(offset); var data = file.getBytes(length); file.pos = previousPosition; if (tag === 'head') { data[8] = data[9] = data[10] = data[11] = 0; data[17] |= 0x20; } return { tag: tag, checksum: checksum, length: length, offset: offset, data: data }; } function readOpenTypeHeader(ttf) { return { version: (0, _util.bytesToString)(ttf.getBytes(4)), numTables: ttf.getUint16(), searchRange: ttf.getUint16(), entrySelector: ttf.getUint16(), rangeShift: ttf.getUint16() }; } function readCmapTable(cmap, font, isSymbolicFont, hasEncoding) { if (!cmap) { (0, _util.warn)('No cmap table available.'); return { platformId: -1, encodingId: -1, mappings: [], hasShortCmap: false }; } var segment; var start = (font.start ? font.start : 0) + cmap.offset; font.pos = start; font.getUint16(); var numTables = font.getUint16(); var potentialTable; var canBreak = false; for (var i = 0; i < numTables; i++) { var platformId = font.getUint16(); var encodingId = font.getUint16(); var offset = font.getInt32() >>> 0; var useTable = false; if (potentialTable && potentialTable.platformId === platformId && potentialTable.encodingId === encodingId) { continue; } if (platformId === 0 && encodingId === 0) { useTable = true; } else if (platformId === 1 && encodingId === 0) { useTable = true; } else if (platformId === 3 && encodingId === 1 && (hasEncoding || !potentialTable)) { useTable = true; if (!isSymbolicFont) { canBreak = true; } } else if (isSymbolicFont && platformId === 3 && encodingId === 0) { useTable = true; canBreak = true; } if (useTable) { potentialTable = { platformId: platformId, encodingId: encodingId, offset: offset }; } if (canBreak) { break; } } if (potentialTable) { font.pos = start + potentialTable.offset; } if (!potentialTable || font.peekByte() === -1) { (0, _util.warn)('Could not find a preferred cmap table.'); return { platformId: -1, encodingId: -1, mappings: [], hasShortCmap: false }; } var format = font.getUint16(); font.getUint16(); font.getUint16(); var hasShortCmap = false; var mappings = []; var j, glyphId; if (format === 0) { for (j = 0; j < 256; j++) { var index = font.getByte(); if (!index) { continue; } mappings.push({ charCode: j, glyphId: index }); } hasShortCmap = true; } else if (format === 4) { var segCount = font.getUint16() >> 1; font.getBytes(6); var segIndex, segments = []; for (segIndex = 0; segIndex < segCount; segIndex++) { segments.push({ end: font.getUint16() }); } font.getUint16(); for (segIndex = 0; segIndex < segCount; segIndex++) { segments[segIndex].start = font.getUint16(); } for (segIndex = 0; segIndex < segCount; segIndex++) { segments[segIndex].delta = font.getUint16(); } var offsetsCount = 0; for (segIndex = 0; segIndex < segCount; segIndex++) { segment = segments[segIndex]; var rangeOffset = font.getUint16(); if (!rangeOffset) { segment.offsetIndex = -1; continue; } var offsetIndex = (rangeOffset >> 1) - (segCount - segIndex); segment.offsetIndex = offsetIndex; offsetsCount = Math.max(offsetsCount, offsetIndex + segment.end - segment.start + 1); } var offsets = []; for (j = 0; j < offsetsCount; j++) { offsets.push(font.getUint16()); } for (segIndex = 0; segIndex < segCount; segIndex++) { segment = segments[segIndex]; start = segment.start; var end = segment.end; var delta = segment.delta; offsetIndex = segment.offsetIndex; for (j = start; j <= end; j++) { if (j === 0xFFFF) { continue; } glyphId = offsetIndex < 0 ? j : offsets[offsetIndex + j - start]; glyphId = glyphId + delta & 0xFFFF; mappings.push({ charCode: j, glyphId: glyphId }); } } } else if (format === 6) { var firstCode = font.getUint16(); var entryCount = font.getUint16(); for (j = 0; j < entryCount; j++) { glyphId = font.getUint16(); var charCode = firstCode + j; mappings.push({ charCode: charCode, glyphId: glyphId }); } } else { (0, _util.warn)('cmap table has unsupported format: ' + format); return { platformId: -1, encodingId: -1, mappings: [], hasShortCmap: false }; } mappings.sort(function (a, b) { return a.charCode - b.charCode; }); for (i = 1; i < mappings.length; i++) { if (mappings[i - 1].charCode === mappings[i].charCode) { mappings.splice(i, 1); i--; } } return { platformId: potentialTable.platformId, encodingId: potentialTable.encodingId, mappings: mappings, hasShortCmap: hasShortCmap }; } function sanitizeMetrics(font, header, metrics, numGlyphs) { if (!header) { if (metrics) { metrics.data = null; } return; } font.pos = (font.start ? font.start : 0) + header.offset; font.pos += header.length - 2; var numOfMetrics = font.getUint16(); if (numOfMetrics > numGlyphs) { (0, _util.info)('The numOfMetrics (' + numOfMetrics + ') should not be ' + 'greater than the numGlyphs (' + numGlyphs + ')'); numOfMetrics = numGlyphs; header.data[34] = (numOfMetrics & 0xff00) >> 8; header.data[35] = numOfMetrics & 0x00ff; } var numOfSidebearings = numGlyphs - numOfMetrics; var numMissing = numOfSidebearings - (metrics.length - numOfMetrics * 4 >> 1); if (numMissing > 0) { var entries = new Uint8Array(metrics.length + numMissing * 2); entries.set(metrics.data); metrics.data = entries; } } function sanitizeGlyph(source, sourceStart, sourceEnd, dest, destStart, hintsValid) { if (sourceEnd - sourceStart <= 12) { return 0; } var glyf = source.subarray(sourceStart, sourceEnd); var contoursCount = glyf[0] << 8 | glyf[1]; if (contoursCount & 0x8000) { dest.set(glyf, destStart); return glyf.length; } var i, j = 10, flagsCount = 0; for (i = 0; i < contoursCount; i++) { var endPoint = glyf[j] << 8 | glyf[j + 1]; flagsCount = endPoint + 1; j += 2; } var instructionsStart = j; var instructionsLength = glyf[j] << 8 | glyf[j + 1]; j += 2 + instructionsLength; var instructionsEnd = j; var coordinatesLength = 0; for (i = 0; i < flagsCount; i++) { var flag = glyf[j++]; if (flag & 0xC0) { glyf[j - 1] = flag & 0x3F; } var xyLength = (flag & 2 ? 1 : flag & 16 ? 0 : 2) + (flag & 4 ? 1 : flag & 32 ? 0 : 2); coordinatesLength += xyLength; if (flag & 8) { var repeat = glyf[j++]; i += repeat; coordinatesLength += repeat * xyLength; } } if (coordinatesLength === 0) { return 0; } var glyphDataLength = j + coordinatesLength; if (glyphDataLength > glyf.length) { return 0; } if (!hintsValid && instructionsLength > 0) { dest.set(glyf.subarray(0, instructionsStart), destStart); dest.set([0, 0], destStart + instructionsStart); dest.set(glyf.subarray(instructionsEnd, glyphDataLength), destStart + instructionsStart + 2); glyphDataLength -= instructionsLength; if (glyf.length - glyphDataLength > 3) { glyphDataLength = glyphDataLength + 3 & ~3; } return glyphDataLength; } if (glyf.length - glyphDataLength > 3) { glyphDataLength = glyphDataLength + 3 & ~3; dest.set(glyf.subarray(0, glyphDataLength), destStart); return glyphDataLength; } dest.set(glyf, destStart); return glyf.length; } function sanitizeHead(head, numGlyphs, locaLength) { var data = head.data; var version = int32(data[0], data[1], data[2], data[3]); if (version >> 16 !== 1) { (0, _util.info)('Attempting to fix invalid version in head table: ' + version); data[0] = 0; data[1] = 1; data[2] = 0; data[3] = 0; } var indexToLocFormat = int16(data[50], data[51]); if (indexToLocFormat < 0 || indexToLocFormat > 1) { (0, _util.info)('Attempting to fix invalid indexToLocFormat in head table: ' + indexToLocFormat); var numGlyphsPlusOne = numGlyphs + 1; if (locaLength === numGlyphsPlusOne << 1) { data[50] = 0; data[51] = 0; } else if (locaLength === numGlyphsPlusOne << 2) { data[50] = 0; data[51] = 1; } else { throw new _util.FormatError('Could not fix indexToLocFormat: ' + indexToLocFormat); } } } function sanitizeGlyphLocations(loca, glyf, numGlyphs, isGlyphLocationsLong, hintsValid, dupFirstEntry) { var itemSize, itemDecode, itemEncode; if (isGlyphLocationsLong) { itemSize = 4; itemDecode = function fontItemDecodeLong(data, offset) { return data[offset] << 24 | data[offset + 1] << 16 | data[offset + 2] << 8 | data[offset + 3]; }; itemEncode = function fontItemEncodeLong(data, offset, value) { data[offset] = value >>> 24 & 0xFF; data[offset + 1] = value >> 16 & 0xFF; data[offset + 2] = value >> 8 & 0xFF; data[offset + 3] = value & 0xFF; }; } else { itemSize = 2; itemDecode = function fontItemDecode(data, offset) { return data[offset] << 9 | data[offset + 1] << 1; }; itemEncode = function fontItemEncode(data, offset, value) { data[offset] = value >> 9 & 0xFF; data[offset + 1] = value >> 1 & 0xFF; }; } var locaData = loca.data; var locaDataSize = itemSize * (1 + numGlyphs); if (locaData.length !== locaDataSize) { locaData = new Uint8Array(locaDataSize); locaData.set(loca.data.subarray(0, locaDataSize)); loca.data = locaData; } var oldGlyfData = glyf.data; var oldGlyfDataLength = oldGlyfData.length; var newGlyfData = new Uint8Array(oldGlyfDataLength); var startOffset = itemDecode(locaData, 0); var writeOffset = 0; var missingGlyphData = Object.create(null); itemEncode(locaData, 0, writeOffset); var i, j; var locaCount = dupFirstEntry ? numGlyphs - 1 : numGlyphs; for (i = 0, j = itemSize; i < locaCount; i++, j += itemSize) { var endOffset = itemDecode(locaData, j); if (endOffset > oldGlyfDataLength && (oldGlyfDataLength + 3 & ~3) === endOffset) { endOffset = oldGlyfDataLength; } if (endOffset > oldGlyfDataLength) { startOffset = endOffset; } var newLength = sanitizeGlyph(oldGlyfData, startOffset, endOffset, newGlyfData, writeOffset, hintsValid); if (newLength === 0) { missingGlyphData[i] = true; } writeOffset += newLength; itemEncode(locaData, j, writeOffset); startOffset = endOffset; } if (writeOffset === 0) { var simpleGlyph = new Uint8Array([0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 49, 0]); for (i = 0, j = itemSize; i < numGlyphs; i++, j += itemSize) { itemEncode(locaData, j, simpleGlyph.length); } glyf.data = simpleGlyph; return missingGlyphData; } if (dupFirstEntry) { var firstEntryLength = itemDecode(locaData, itemSize); if (newGlyfData.length > firstEntryLength + writeOffset) { glyf.data = newGlyfData.subarray(0, firstEntryLength + writeOffset); } else { glyf.data = new Uint8Array(firstEntryLength + writeOffset); glyf.data.set(newGlyfData.subarray(0, writeOffset)); } glyf.data.set(newGlyfData.subarray(0, firstEntryLength), writeOffset); itemEncode(loca.data, locaData.length - itemSize, writeOffset + firstEntryLength); } else { glyf.data = newGlyfData.subarray(0, writeOffset); } return missingGlyphData; } function readPostScriptTable(post, properties, maxpNumGlyphs) { var start = (font.start ? font.start : 0) + post.offset; font.pos = start; var length = post.length, end = start + length; var version = font.getInt32(); font.getBytes(28); var glyphNames; var valid = true; var i; switch (version) { case 0x00010000: glyphNames = MacStandardGlyphOrdering; break; case 0x00020000: var numGlyphs = font.getUint16(); if (numGlyphs !== maxpNumGlyphs) { valid = false; break; } var glyphNameIndexes = []; for (i = 0; i < numGlyphs; ++i) { var index = font.getUint16(); if (index >= 32768) { valid = false; break; } glyphNameIndexes.push(index); } if (!valid) { break; } var customNames = []; var strBuf = []; while (font.pos < end) { var stringLength = font.getByte(); strBuf.length = stringLength; for (i = 0; i < stringLength; ++i) { strBuf[i] = String.fromCharCode(font.getByte()); } customNames.push(strBuf.join('')); } glyphNames = []; for (i = 0; i < numGlyphs; ++i) { var j = glyphNameIndexes[i]; if (j < 258) { glyphNames.push(MacStandardGlyphOrdering[j]); continue; } glyphNames.push(customNames[j - 258]); } break; case 0x00030000: break; default: (0, _util.warn)('Unknown/unsupported post table version ' + version); valid = false; if (properties.defaultEncoding) { glyphNames = properties.defaultEncoding; } break; } properties.glyphNames = glyphNames; return valid; } function readNameTable(nameTable) { var start = (font.start ? font.start : 0) + nameTable.offset; font.pos = start; var names = [[], []]; var length = nameTable.length, end = start + length; var format = font.getUint16(); var FORMAT_0_HEADER_LENGTH = 6; if (format !== 0 || length < FORMAT_0_HEADER_LENGTH) { return names; } var numRecords = font.getUint16(); var stringsStart = font.getUint16(); var records = []; var NAME_RECORD_LENGTH = 12; var i, ii; for (i = 0; i < numRecords && font.pos + NAME_RECORD_LENGTH <= end; i++) { var r = { platform: font.getUint16(), encoding: font.getUint16(), language: font.getUint16(), name: font.getUint16(), length: font.getUint16(), offset: font.getUint16() }; if (r.platform === 1 && r.encoding === 0 && r.language === 0 || r.platform === 3 && r.encoding === 1 && r.language === 0x409) { records.push(r); } } for (i = 0, ii = records.length; i < ii; i++) { var record = records[i]; if (record.length <= 0) { continue; } var pos = start + stringsStart + record.offset; if (pos + record.length > end) { continue; } font.pos = pos; var nameIndex = record.name; if (record.encoding) { var str = ''; for (var j = 0, jj = record.length; j < jj; j += 2) { str += String.fromCharCode(font.getUint16()); } names[1][nameIndex] = str; } else { names[0][nameIndex] = (0, _util.bytesToString)(font.getBytes(record.length)); } } return names; } var TTOpsStackDeltas = [0, 0, 0, 0, 0, 0, 0, 0, -2, -2, -2, -2, 0, 0, -2, -5, -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, -1, 0, -1, -1, -1, -1, 1, -1, -999, 0, 1, 0, -1, -2, 0, -1, -2, -1, -1, 0, -1, -1, 0, 0, -999, -999, -1, -1, -1, -1, -2, -999, -2, -2, -999, 0, -2, -2, 0, 0, -2, 0, -2, 0, 0, 0, -2, -1, -1, 1, 1, 0, 0, -1, -1, -1, -1, -1, -1, -1, 0, 0, -1, 0, -1, -1, 0, -999, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -2, -999, -999, -999, -999, -999, -1, -1, -2, -2, 0, 0, 0, 0, -1, -1, -999, -2, -2, 0, 0, -1, -2, -2, 0, 0, 0, -1, -1, -1, -2]; function sanitizeTTProgram(table, ttContext) { var data = table.data; var i = 0, j, n, b, funcId, pc, lastEndf = 0, lastDeff = 0; var stack = []; var callstack = []; var functionsCalled = []; var tooComplexToFollowFunctions = ttContext.tooComplexToFollowFunctions; var inFDEF = false, ifLevel = 0, inELSE = 0; for (var ii = data.length; i < ii;) { var op = data[i++]; if (op === 0x40) { n = data[i++]; if (inFDEF || inELSE) { i += n; } else { for (j = 0; j < n; j++) { stack.push(data[i++]); } } } else if (op === 0x41) { n = data[i++]; if (inFDEF || inELSE) { i += n * 2; } else { for (j = 0; j < n; j++) { b = data[i++]; stack.push(b << 8 | data[i++]); } } } else if ((op & 0xF8) === 0xB0) { n = op - 0xB0 + 1; if (inFDEF || inELSE) { i += n; } else { for (j = 0; j < n; j++) { stack.push(data[i++]); } } } else if ((op & 0xF8) === 0xB8) { n = op - 0xB8 + 1; if (inFDEF || inELSE) { i += n * 2; } else { for (j = 0; j < n; j++) { b = data[i++]; stack.push(b << 8 | data[i++]); } } } else if (op === 0x2B && !tooComplexToFollowFunctions) { if (!inFDEF && !inELSE) { funcId = stack[stack.length - 1]; ttContext.functionsUsed[funcId] = true; if (funcId in ttContext.functionsStackDeltas) { stack.length += ttContext.functionsStackDeltas[funcId]; } else if (funcId in ttContext.functionsDefined && functionsCalled.indexOf(funcId) < 0) { callstack.push({ data: data, i: i, stackTop: stack.length - 1 }); functionsCalled.push(funcId); pc = ttContext.functionsDefined[funcId]; if (!pc) { (0, _util.warn)('TT: CALL non-existent function'); ttContext.hintsValid = false; return; } data = pc.data; i = pc.i; } } } else if (op === 0x2C && !tooComplexToFollowFunctions) { if (inFDEF || inELSE) { (0, _util.warn)('TT: nested FDEFs not allowed'); tooComplexToFollowFunctions = true; } inFDEF = true; lastDeff = i; funcId = stack.pop(); ttContext.functionsDefined[funcId] = { data: data, i: i }; } else if (op === 0x2D) { if (inFDEF) { inFDEF = false; lastEndf = i; } else { pc = callstack.pop(); if (!pc) { (0, _util.warn)('TT: ENDF bad stack'); ttContext.hintsValid = false; return; } funcId = functionsCalled.pop(); data = pc.data; i = pc.i; ttContext.functionsStackDeltas[funcId] = stack.length - pc.stackTop; } } else if (op === 0x89) { if (inFDEF || inELSE) { (0, _util.warn)('TT: nested IDEFs not allowed'); tooComplexToFollowFunctions = true; } inFDEF = true; lastDeff = i; } else if (op === 0x58) { ++ifLevel; } else if (op === 0x1B) { inELSE = ifLevel; } else if (op === 0x59) { if (inELSE === ifLevel) { inELSE = 0; } --ifLevel; } else if (op === 0x1C) { if (!inFDEF && !inELSE) { var offset = stack[stack.length - 1]; if (offset > 0) { i += offset - 1; } } } if (!inFDEF && !inELSE) { var stackDelta = op <= 0x8E ? TTOpsStackDeltas[op] : op >= 0xC0 && op <= 0xDF ? -1 : op >= 0xE0 ? -2 : 0; if (op >= 0x71 && op <= 0x75) { n = stack.pop(); if (!isNaN(n)) { stackDelta = -n * 2; } } while (stackDelta < 0 && stack.length > 0) { stack.pop(); stackDelta++; } while (stackDelta > 0) { stack.push(NaN); stackDelta--; } } } ttContext.tooComplexToFollowFunctions = tooComplexToFollowFunctions; var content = [data]; if (i > data.length) { content.push(new Uint8Array(i - data.length)); } if (lastDeff > lastEndf) { (0, _util.warn)('TT: complementing a missing function tail'); content.push(new Uint8Array([0x22, 0x2D])); } foldTTTable(table, content); } function checkInvalidFunctions(ttContext, maxFunctionDefs) { if (ttContext.tooComplexToFollowFunctions) { return; } if (ttContext.functionsDefined.length > maxFunctionDefs) { (0, _util.warn)('TT: more functions defined than expected'); ttContext.hintsValid = false; return; } for (var j = 0, jj = ttContext.functionsUsed.length; j < jj; j++) { if (j > maxFunctionDefs) { (0, _util.warn)('TT: invalid function id: ' + j); ttContext.hintsValid = false; return; } if (ttContext.functionsUsed[j] && !ttContext.functionsDefined[j]) { (0, _util.warn)('TT: undefined function: ' + j); ttContext.hintsValid = false; return; } } } function foldTTTable(table, content) { if (content.length > 1) { var newLength = 0; var j, jj; for (j = 0, jj = content.length; j < jj; j++) { newLength += content[j].length; } newLength = newLength + 3 & ~3; var result = new Uint8Array(newLength); var pos = 0; for (j = 0, jj = content.length; j < jj; j++) { result.set(content[j], pos); pos += content[j].length; } table.data = result; table.length = newLength; } } function sanitizeTTPrograms(fpgm, prep, cvt, maxFunctionDefs) { var ttContext = { functionsDefined: [], functionsUsed: [], functionsStackDeltas: [], tooComplexToFollowFunctions: false, hintsValid: true }; if (fpgm) { sanitizeTTProgram(fpgm, ttContext); } if (prep) { sanitizeTTProgram(prep, ttContext); } if (fpgm) { checkInvalidFunctions(ttContext, maxFunctionDefs); } if (cvt && cvt.length & 1) { var cvtData = new Uint8Array(cvt.length + 1); cvtData.set(cvt.data); cvt.data = cvtData; } return ttContext.hintsValid; } font = new _stream.Stream(new Uint8Array(font.getBytes())); var VALID_TABLES = ['OS/2', 'cmap', 'head', 'hhea', 'hmtx', 'maxp', 'name', 'post', 'loca', 'glyf', 'fpgm', 'prep', 'cvt ', 'CFF ']; var header = readOpenTypeHeader(font); var numTables = header.numTables; var cff, cffFile; var tables = Object.create(null); tables['OS/2'] = null; tables['cmap'] = null; tables['head'] = null; tables['hhea'] = null; tables['hmtx'] = null; tables['maxp'] = null; tables['name'] = null; tables['post'] = null; var table; for (var i = 0; i < numTables; i++) { table = readTableEntry(font); if (VALID_TABLES.indexOf(table.tag) < 0) { continue; } if (table.length === 0) { continue; } tables[table.tag] = table; } var isTrueType = !tables['CFF ']; if (!isTrueType) { if (header.version === 'OTTO' && !(properties.composite && properties.cidToGidMap) || !tables['head'] || !tables['hhea'] || !tables['maxp'] || !tables['post']) { cffFile = new _stream.Stream(tables['CFF '].data); cff = new CFFFont(cffFile, properties); adjustWidths(properties); return this.convert(name, cff, properties); } delete tables['glyf']; delete tables['loca']; delete tables['fpgm']; delete tables['prep']; delete tables['cvt ']; this.isOpenType = true; } else { if (!tables['loca']) { throw new _util.FormatError('Required "loca" table is not found'); } if (!tables['glyf']) { (0, _util.warn)('Required "glyf" table is not found -- trying to recover.'); tables['glyf'] = { tag: 'glyf', data: new Uint8Array(0) }; } this.isOpenType = false; } if (!tables['maxp']) { throw new _util.FormatError('Required "maxp" table is not found'); } font.pos = (font.start || 0) + tables['maxp'].offset; var version = font.getInt32(); var numGlyphs = font.getUint16(); var maxFunctionDefs = 0; if (version >= 0x00010000 && tables['maxp'].length >= 22) { font.pos += 8; var maxZones = font.getUint16(); if (maxZones > 2) { tables['maxp'].data[14] = 0; tables['maxp'].data[15] = 2; } font.pos += 4; maxFunctionDefs = font.getUint16(); } var dupFirstEntry = false; if (properties.type === 'CIDFontType2' && properties.toUnicode && properties.toUnicode.get(0) > '\0') { dupFirstEntry = true; numGlyphs++; tables['maxp'].data[4] = numGlyphs >> 8; tables['maxp'].data[5] = numGlyphs & 255; } var hintsValid = sanitizeTTPrograms(tables['fpgm'], tables['prep'], tables['cvt '], maxFunctionDefs); if (!hintsValid) { delete tables['fpgm']; delete tables['prep']; delete tables['cvt ']; } sanitizeMetrics(font, tables['hhea'], tables['hmtx'], numGlyphs); if (!tables['head']) { throw new _util.FormatError('Required "head" table is not found'); } sanitizeHead(tables['head'], numGlyphs, isTrueType ? tables['loca'].length : 0); var missingGlyphs = Object.create(null); if (isTrueType) { var isGlyphLocationsLong = int16(tables['head'].data[50], tables['head'].data[51]); missingGlyphs = sanitizeGlyphLocations(tables['loca'], tables['glyf'], numGlyphs, isGlyphLocationsLong, hintsValid, dupFirstEntry); } if (!tables['hhea']) { throw new _util.FormatError('Required "hhea" table is not found'); } if (tables['hhea'].data[10] === 0 && tables['hhea'].data[11] === 0) { tables['hhea'].data[10] = 0xFF; tables['hhea'].data[11] = 0xFF; } var metricsOverride = { unitsPerEm: int16(tables['head'].data[18], tables['head'].data[19]), yMax: int16(tables['head'].data[42], tables['head'].data[43]), yMin: signedInt16(tables['head'].data[38], tables['head'].data[39]), ascent: int16(tables['hhea'].data[4], tables['hhea'].data[5]), descent: signedInt16(tables['hhea'].data[6], tables['hhea'].data[7]) }; this.ascent = metricsOverride.ascent / metricsOverride.unitsPerEm; this.descent = metricsOverride.descent / metricsOverride.unitsPerEm; if (tables['post']) { var valid = readPostScriptTable(tables['post'], properties, numGlyphs); if (!valid) { tables['post'] = null; } } var charCodeToGlyphId = [], charCode; function hasGlyph(glyphId) { return !missingGlyphs[glyphId]; } if (properties.composite) { var cidToGidMap = properties.cidToGidMap || []; var isCidToGidMapEmpty = cidToGidMap.length === 0; properties.cMap.forEach(function (charCode, cid) { if (cid > 0xffff) { throw new _util.FormatError('Max size of CID is 65,535'); } var glyphId = -1; if (isCidToGidMapEmpty) { glyphId = cid; } else if (cidToGidMap[cid] !== undefined) { glyphId = cidToGidMap[cid]; } if (glyphId >= 0 && glyphId < numGlyphs && hasGlyph(glyphId)) { charCodeToGlyphId[charCode] = glyphId; } }); if (dupFirstEntry && (isCidToGidMapEmpty || !charCodeToGlyphId[0])) { charCodeToGlyphId[0] = numGlyphs - 1; } } else { var cmapTable = readCmapTable(tables['cmap'], font, this.isSymbolicFont, properties.hasEncoding); var cmapPlatformId = cmapTable.platformId; var cmapEncodingId = cmapTable.encodingId; var cmapMappings = cmapTable.mappings; var cmapMappingsLength = cmapMappings.length; if (properties.hasEncoding && (cmapPlatformId === 3 && cmapEncodingId === 1 || cmapPlatformId === 1 && cmapEncodingId === 0) || cmapPlatformId === -1 && cmapEncodingId === -1 && !!(0, _encodings.getEncoding)(properties.baseEncodingName)) { var baseEncoding = []; if (properties.baseEncodingName === 'MacRomanEncoding' || properties.baseEncodingName === 'WinAnsiEncoding') { baseEncoding = (0, _encodings.getEncoding)(properties.baseEncodingName); } var glyphsUnicodeMap = (0, _glyphlist.getGlyphsUnicode)(); for (charCode = 0; charCode < 256; charCode++) { var glyphName, standardGlyphName; if (this.differences && charCode in this.differences) { glyphName = this.differences[charCode]; } else if (charCode in baseEncoding && baseEncoding[charCode] !== '') { glyphName = baseEncoding[charCode]; } else { glyphName = _encodings.StandardEncoding[charCode]; } if (!glyphName) { continue; } standardGlyphName = recoverGlyphName(glyphName, glyphsUnicodeMap); var unicodeOrCharCode; if (cmapPlatformId === 3 && cmapEncodingId === 1) { unicodeOrCharCode = glyphsUnicodeMap[standardGlyphName]; } else if (cmapPlatformId === 1 && cmapEncodingId === 0) { unicodeOrCharCode = _encodings.MacRomanEncoding.indexOf(standardGlyphName); } var found = false; for (i = 0; i < cmapMappingsLength; ++i) { if (cmapMappings[i].charCode !== unicodeOrCharCode) { continue; } charCodeToGlyphId[charCode] = cmapMappings[i].glyphId; found = true; break; } if (!found && properties.glyphNames) { var glyphId = properties.glyphNames.indexOf(glyphName); if (glyphId === -1 && standardGlyphName !== glyphName) { glyphId = properties.glyphNames.indexOf(standardGlyphName); } if (glyphId > 0 && hasGlyph(glyphId)) { charCodeToGlyphId[charCode] = glyphId; found = true; } } } } else if (cmapPlatformId === 0 && cmapEncodingId === 0) { for (i = 0; i < cmapMappingsLength; ++i) { charCodeToGlyphId[cmapMappings[i].charCode] = cmapMappings[i].glyphId; } } else { for (i = 0; i < cmapMappingsLength; ++i) { charCode = cmapMappings[i].charCode; if (cmapPlatformId === 3 && charCode >= 0xF000 && charCode <= 0xF0FF) { charCode &= 0xFF; } charCodeToGlyphId[charCode] = cmapMappings[i].glyphId; } } } if (charCodeToGlyphId.length === 0) { charCodeToGlyphId[0] = 0; } var newMapping = adjustMapping(charCodeToGlyphId, properties, missingGlyphs); this.toFontChar = newMapping.toFontChar; tables['cmap'] = { tag: 'cmap', data: createCmapTable(newMapping.charCodeToGlyphId, numGlyphs) }; if (!tables['OS/2'] || !validateOS2Table(tables['OS/2'])) { tables['OS/2'] = { tag: 'OS/2', data: createOS2Table(properties, newMapping.charCodeToGlyphId, metricsOverride) }; } if (!tables['post']) { tables['post'] = { tag: 'post', data: createPostTable(properties) }; } if (!isTrueType) { try { cffFile = new _stream.Stream(tables['CFF '].data); var parser = new _cff_parser.CFFParser(cffFile, properties, SEAC_ANALYSIS_ENABLED); cff = parser.parse(); var compiler = new _cff_parser.CFFCompiler(cff); tables['CFF '].data = compiler.compile(); } catch (e) { (0, _util.warn)('Failed to compile font ' + properties.loadedName); } } if (!tables['name']) { tables['name'] = { tag: 'name', data: createNameTable(this.name) }; } else { var namePrototype = readNameTable(tables['name']); tables['name'].data = createNameTable(name, namePrototype); } var builder = new OpenTypeFileBuilder(header.version); for (var tableTag in tables) { builder.addTable(tableTag, tables[tableTag].data); } return builder.toArray(); }, convert: function Font_convert(fontName, font, properties) { properties.fixedPitch = false; if (properties.builtInEncoding) { adjustToUnicode(properties, properties.builtInEncoding); } var mapping = font.getGlyphMapping(properties); var newMapping = adjustMapping(mapping, properties, Object.create(null)); this.toFontChar = newMapping.toFontChar; var numGlyphs = font.numGlyphs; function getCharCodes(charCodeToGlyphId, glyphId) { var charCodes = null; for (var charCode in charCodeToGlyphId) { if (glyphId === charCodeToGlyphId[charCode]) { if (!charCodes) { charCodes = []; } charCodes.push(charCode | 0); } } return charCodes; } function createCharCode(charCodeToGlyphId, glyphId) { for (var charCode in charCodeToGlyphId) { if (glyphId === charCodeToGlyphId[charCode]) { return charCode | 0; } } newMapping.charCodeToGlyphId[newMapping.nextAvailableFontCharCode] = glyphId; return newMapping.nextAvailableFontCharCode++; } var seacs = font.seacs; if (SEAC_ANALYSIS_ENABLED && seacs && seacs.length) { var matrix = properties.fontMatrix || _util.FONT_IDENTITY_MATRIX; var charset = font.getCharset(); var seacMap = Object.create(null); for (var glyphId in seacs) { glyphId |= 0; var seac = seacs[glyphId]; var baseGlyphName = _encodings.StandardEncoding[seac[2]]; var accentGlyphName = _encodings.StandardEncoding[seac[3]]; var baseGlyphId = charset.indexOf(baseGlyphName); var accentGlyphId = charset.indexOf(accentGlyphName); if (baseGlyphId < 0 || accentGlyphId < 0) { continue; } var accentOffset = { x: seac[0] * matrix[0] + seac[1] * matrix[2] + matrix[4], y: seac[0] * matrix[1] + seac[1] * matrix[3] + matrix[5] }; var charCodes = getCharCodes(mapping, glyphId); if (!charCodes) { continue; } for (var i = 0, ii = charCodes.length; i < ii; i++) { var charCode = charCodes[i]; var charCodeToGlyphId = newMapping.charCodeToGlyphId; var baseFontCharCode = createCharCode(charCodeToGlyphId, baseGlyphId); var accentFontCharCode = createCharCode(charCodeToGlyphId, accentGlyphId); seacMap[charCode] = { baseFontCharCode: baseFontCharCode, accentFontCharCode: accentFontCharCode, accentOffset: accentOffset }; } } properties.seacMap = seacMap; } var unitsPerEm = 1 / (properties.fontMatrix || _util.FONT_IDENTITY_MATRIX)[0]; var builder = new OpenTypeFileBuilder('\x4F\x54\x54\x4F'); builder.addTable('CFF ', font.data); builder.addTable('OS/2', createOS2Table(properties, newMapping.charCodeToGlyphId)); builder.addTable('cmap', createCmapTable(newMapping.charCodeToGlyphId, numGlyphs)); builder.addTable('head', '\x00\x01\x00\x00' + '\x00\x00\x10\x00' + '\x00\x00\x00\x00' + '\x5F\x0F\x3C\xF5' + '\x00\x00' + safeString16(unitsPerEm) + '\x00\x00\x00\x00\x9e\x0b\x7e\x27' + '\x00\x00\x00\x00\x9e\x0b\x7e\x27' + '\x00\x00' + safeString16(properties.descent) + '\x0F\xFF' + safeString16(properties.ascent) + string16(properties.italicAngle ? 2 : 0) + '\x00\x11' + '\x00\x00' + '\x00\x00' + '\x00\x00'); builder.addTable('hhea', '\x00\x01\x00\x00' + safeString16(properties.ascent) + safeString16(properties.descent) + '\x00\x00' + '\xFF\xFF' + '\x00\x00' + '\x00\x00' + '\x00\x00' + safeString16(properties.capHeight) + safeString16(Math.tan(properties.italicAngle) * properties.xHeight) + '\x00\x00' + '\x00\x00' + '\x00\x00' + '\x00\x00' + '\x00\x00' + '\x00\x00' + string16(numGlyphs)); builder.addTable('hmtx', function fontFieldsHmtx() { var charstrings = font.charstrings; var cffWidths = font.cff ? font.cff.widths : null; var hmtx = '\x00\x00\x00\x00'; for (var i = 1, ii = numGlyphs; i < ii; i++) { var width = 0; if (charstrings) { var charstring = charstrings[i - 1]; width = 'width' in charstring ? charstring.width : 0; } else if (cffWidths) { width = Math.ceil(cffWidths[i] || 0); } hmtx += string16(width) + string16(0); } return hmtx; }()); builder.addTable('maxp', '\x00\x00\x50\x00' + string16(numGlyphs)); builder.addTable('name', createNameTable(fontName)); builder.addTable('post', createPostTable(properties)); return builder.toArray(); }, get spaceWidth() { if ('_shadowWidth' in this) { return this._shadowWidth; } var possibleSpaceReplacements = ['space', 'minus', 'one', 'i', 'I']; var width; for (var i = 0, ii = possibleSpaceReplacements.length; i < ii; i++) { var glyphName = possibleSpaceReplacements[i]; if (glyphName in this.widths) { width = this.widths[glyphName]; break; } var glyphsUnicodeMap = (0, _glyphlist.getGlyphsUnicode)(); var glyphUnicode = glyphsUnicodeMap[glyphName]; var charcode = 0; if (this.composite) { if (this.cMap.contains(glyphUnicode)) { charcode = this.cMap.lookup(glyphUnicode); } } if (!charcode && this.toUnicode) { charcode = this.toUnicode.charCodeOf(glyphUnicode); } if (charcode <= 0) { charcode = glyphUnicode; } width = this.widths[charcode]; if (width) { break; } } width = width || this.defaultWidth; this._shadowWidth = width; return width; }, charToGlyph: function Font_charToGlyph(charcode, isSpace) { var fontCharCode, width, operatorListId; var widthCode = charcode; if (this.cMap && this.cMap.contains(charcode)) { widthCode = this.cMap.lookup(charcode); } width = this.widths[widthCode]; width = (0, _util.isNum)(width) ? width : this.defaultWidth; var vmetric = this.vmetrics && this.vmetrics[widthCode]; var unicode = this.toUnicode.get(charcode) || charcode; if (typeof unicode === 'number') { unicode = String.fromCharCode(unicode); } var isInFont = charcode in this.toFontChar; fontCharCode = this.toFontChar[charcode] || charcode; if (this.missingFile) { fontCharCode = (0, _unicode.mapSpecialUnicodeValues)(fontCharCode); } if (this.isType3Font) { operatorListId = fontCharCode; } var accent = null; if (this.seacMap && this.seacMap[charcode]) { isInFont = true; var seac = this.seacMap[charcode]; fontCharCode = seac.baseFontCharCode; accent = { fontChar: String.fromCharCode(seac.accentFontCharCode), offset: seac.accentOffset }; } var fontChar = String.fromCharCode(fontCharCode); var glyph = this.glyphCache[charcode]; if (!glyph || !glyph.matchesForCache(fontChar, unicode, accent, width, vmetric, operatorListId, isSpace, isInFont)) { glyph = new Glyph(fontChar, unicode, accent, width, vmetric, operatorListId, isSpace, isInFont); this.glyphCache[charcode] = glyph; } return glyph; }, charsToGlyphs: function Font_charsToGlyphs(chars) { var charsCache = this.charsCache; var glyphs, glyph, charcode; if (charsCache) { glyphs = charsCache[chars]; if (glyphs) { return glyphs; } } if (!charsCache) { charsCache = this.charsCache = Object.create(null); } glyphs = []; var charsCacheKey = chars; var i = 0, ii; if (this.cMap) { var c = Object.create(null); while (i < chars.length) { this.cMap.readCharCode(chars, i, c); charcode = c.charcode; var length = c.length; i += length; var isSpace = length === 1 && chars.charCodeAt(i - 1) === 0x20; glyph = this.charToGlyph(charcode, isSpace); glyphs.push(glyph); } } else { for (i = 0, ii = chars.length; i < ii; ++i) { charcode = chars.charCodeAt(i); glyph = this.charToGlyph(charcode, charcode === 0x20); glyphs.push(glyph); } } return charsCache[charsCacheKey] = glyphs; } }; return Font; }(); var ErrorFont = function ErrorFontClosure() { function ErrorFont(error) { this.error = error; this.loadedName = 'g_font_error'; this.loading = false; } ErrorFont.prototype = { charsToGlyphs: function ErrorFont_charsToGlyphs() { return []; }, exportData: function ErrorFont_exportData() { return { error: this.error }; } }; return ErrorFont; }(); function type1FontGlyphMapping(properties, builtInEncoding, glyphNames) { var charCodeToGlyphId = Object.create(null); var glyphId, charCode, baseEncoding; var isSymbolicFont = !!(properties.flags & FontFlags.Symbolic); if (properties.baseEncodingName) { baseEncoding = (0, _encodings.getEncoding)(properties.baseEncodingName); for (charCode = 0; charCode < baseEncoding.length; charCode++) { glyphId = glyphNames.indexOf(baseEncoding[charCode]); if (glyphId >= 0) { charCodeToGlyphId[charCode] = glyphId; } else { charCodeToGlyphId[charCode] = 0; } } } else if (isSymbolicFont) { for (charCode in builtInEncoding) { charCodeToGlyphId[charCode] = builtInEncoding[charCode]; } } else { baseEncoding = _encodings.StandardEncoding; for (charCode = 0; charCode < baseEncoding.length; charCode++) { glyphId = glyphNames.indexOf(baseEncoding[charCode]); if (glyphId >= 0) { charCodeToGlyphId[charCode] = glyphId; } else { charCodeToGlyphId[charCode] = 0; } } } var differences = properties.differences, glyphsUnicodeMap; if (differences) { for (charCode in differences) { var glyphName = differences[charCode]; glyphId = glyphNames.indexOf(glyphName); if (glyphId === -1) { if (!glyphsUnicodeMap) { glyphsUnicodeMap = (0, _glyphlist.getGlyphsUnicode)(); } var standardGlyphName = recoverGlyphName(glyphName, glyphsUnicodeMap); if (standardGlyphName !== glyphName) { glyphId = glyphNames.indexOf(standardGlyphName); } } if (glyphId >= 0) { charCodeToGlyphId[charCode] = glyphId; } else { charCodeToGlyphId[charCode] = 0; } } } return charCodeToGlyphId; } var Type1Font = function Type1FontClosure() { function findBlock(streamBytes, signature, startIndex) { var streamBytesLength = streamBytes.length; var signatureLength = signature.length; var scanLength = streamBytesLength - signatureLength; var i = startIndex, j, found = false; while (i < scanLength) { j = 0; while (j < signatureLength && streamBytes[i + j] === signature[j]) { j++; } if (j >= signatureLength) { i += j; while (i < streamBytesLength && (0, _util.isSpace)(streamBytes[i])) { i++; } found = true; break; } i++; } return { found: found, length: i }; } function getHeaderBlock(stream, suggestedLength) { var EEXEC_SIGNATURE = [0x65, 0x65, 0x78, 0x65, 0x63]; var streamStartPos = stream.pos; var headerBytes, headerBytesLength, block; try { headerBytes = stream.getBytes(suggestedLength); headerBytesLength = headerBytes.length; } catch (ex) { if (ex instanceof _util.MissingDataException) { throw ex; } } if (headerBytesLength === suggestedLength) { block = findBlock(headerBytes, EEXEC_SIGNATURE, suggestedLength - 2 * EEXEC_SIGNATURE.length); if (block.found && block.length === suggestedLength) { return { stream: new _stream.Stream(headerBytes), length: suggestedLength }; } } (0, _util.warn)('Invalid "Length1" property in Type1 font -- trying to recover.'); stream.pos = streamStartPos; var SCAN_BLOCK_LENGTH = 2048; var actualLength; while (true) { var scanBytes = stream.peekBytes(SCAN_BLOCK_LENGTH); block = findBlock(scanBytes, EEXEC_SIGNATURE, 0); if (block.length === 0) { break; } stream.pos += block.length; if (block.found) { actualLength = stream.pos - streamStartPos; break; } } stream.pos = streamStartPos; if (actualLength) { return { stream: new _stream.Stream(stream.getBytes(actualLength)), length: actualLength }; } (0, _util.warn)('Unable to recover "Length1" property in Type1 font -- using as is.'); return { stream: new _stream.Stream(stream.getBytes(suggestedLength)), length: suggestedLength }; } function getEexecBlock(stream, suggestedLength) { var eexecBytes = stream.getBytes(); return { stream: new _stream.Stream(eexecBytes), length: eexecBytes.length }; } function Type1Font(name, file, properties) { var PFB_HEADER_SIZE = 6; var headerBlockLength = properties.length1; var eexecBlockLength = properties.length2; var pfbHeader = file.peekBytes(PFB_HEADER_SIZE); var pfbHeaderPresent = pfbHeader[0] === 0x80 && pfbHeader[1] === 0x01; if (pfbHeaderPresent) { file.skip(PFB_HEADER_SIZE); headerBlockLength = pfbHeader[5] << 24 | pfbHeader[4] << 16 | pfbHeader[3] << 8 | pfbHeader[2]; } var headerBlock = getHeaderBlock(file, headerBlockLength); headerBlockLength = headerBlock.length; var headerBlockParser = new _type1_parser.Type1Parser(headerBlock.stream, false, SEAC_ANALYSIS_ENABLED); headerBlockParser.extractFontHeader(properties); if (pfbHeaderPresent) { pfbHeader = file.getBytes(PFB_HEADER_SIZE); eexecBlockLength = pfbHeader[5] << 24 | pfbHeader[4] << 16 | pfbHeader[3] << 8 | pfbHeader[2]; } var eexecBlock = getEexecBlock(file, eexecBlockLength); eexecBlockLength = eexecBlock.length; var eexecBlockParser = new _type1_parser.Type1Parser(eexecBlock.stream, true, SEAC_ANALYSIS_ENABLED); var data = eexecBlockParser.extractFontProgram(); for (var info in data.properties) { properties[info] = data.properties[info]; } var charstrings = data.charstrings; var type2Charstrings = this.getType2Charstrings(charstrings); var subrs = this.getType2Subrs(data.subrs); this.charstrings = charstrings; this.data = this.wrap(name, type2Charstrings, this.charstrings, subrs, properties); this.seacs = this.getSeacs(data.charstrings); } Type1Font.prototype = { get numGlyphs() { return this.charstrings.length + 1; }, getCharset: function Type1Font_getCharset() { var charset = ['.notdef']; var charstrings = this.charstrings; for (var glyphId = 0; glyphId < charstrings.length; glyphId++) { charset.push(charstrings[glyphId].glyphName); } return charset; }, getGlyphMapping: function Type1Font_getGlyphMapping(properties) { var charstrings = this.charstrings; var glyphNames = ['.notdef'], glyphId; for (glyphId = 0; glyphId < charstrings.length; glyphId++) { glyphNames.push(charstrings[glyphId].glyphName); } var encoding = properties.builtInEncoding; if (encoding) { var builtInEncoding = Object.create(null); for (var charCode in encoding) { glyphId = glyphNames.indexOf(encoding[charCode]); if (glyphId >= 0) { builtInEncoding[charCode] = glyphId; } } } return type1FontGlyphMapping(properties, builtInEncoding, glyphNames); }, getSeacs: function Type1Font_getSeacs(charstrings) { var i, ii; var seacMap = []; for (i = 0, ii = charstrings.length; i < ii; i++) { var charstring = charstrings[i]; if (charstring.seac) { seacMap[i + 1] = charstring.seac; } } return seacMap; }, getType2Charstrings: function Type1Font_getType2Charstrings(type1Charstrings) { var type2Charstrings = []; for (var i = 0, ii = type1Charstrings.length; i < ii; i++) { type2Charstrings.push(type1Charstrings[i].charstring); } return type2Charstrings; }, getType2Subrs: function Type1Font_getType2Subrs(type1Subrs) { var bias = 0; var count = type1Subrs.length; if (count < 1133) { bias = 107; } else if (count < 33769) { bias = 1131; } else { bias = 32768; } var type2Subrs = []; var i; for (i = 0; i < bias; i++) { type2Subrs.push([0x0B]); } for (i = 0; i < count; i++) { type2Subrs.push(type1Subrs[i]); } return type2Subrs; }, wrap: function Type1Font_wrap(name, glyphs, charstrings, subrs, properties) { var cff = new _cff_parser.CFF(); cff.header = new _cff_parser.CFFHeader(1, 0, 4, 4); cff.names = [name]; var topDict = new _cff_parser.CFFTopDict(); topDict.setByName('version', 391); topDict.setByName('Notice', 392); topDict.setByName('FullName', 393); topDict.setByName('FamilyName', 394); topDict.setByName('Weight', 395); topDict.setByName('Encoding', null); topDict.setByName('FontMatrix', properties.fontMatrix); topDict.setByName('FontBBox', properties.bbox); topDict.setByName('charset', null); topDict.setByName('CharStrings', null); topDict.setByName('Private', null); cff.topDict = topDict; var strings = new _cff_parser.CFFStrings(); strings.add('Version 0.11'); strings.add('See original notice'); strings.add(name); strings.add(name); strings.add('Medium'); cff.strings = strings; cff.globalSubrIndex = new _cff_parser.CFFIndex(); var count = glyphs.length; var charsetArray = [0]; var i, ii; for (i = 0; i < count; i++) { var index = _cff_parser.CFFStandardStrings.indexOf(charstrings[i].glyphName); if (index === -1) { index = 0; } charsetArray.push(index >> 8 & 0xff, index & 0xff); } cff.charset = new _cff_parser.CFFCharset(false, 0, [], charsetArray); var charStringsIndex = new _cff_parser.CFFIndex(); charStringsIndex.add([0x8B, 0x0E]); for (i = 0; i < count; i++) { var glyph = glyphs[i]; if (glyph.length === 0) { charStringsIndex.add([0x8B, 0x0E]); continue; } charStringsIndex.add(glyph); } cff.charStrings = charStringsIndex; var privateDict = new _cff_parser.CFFPrivateDict(); privateDict.setByName('Subrs', null); var fields = ['BlueValues', 'OtherBlues', 'FamilyBlues', 'FamilyOtherBlues', 'StemSnapH', 'StemSnapV', 'BlueShift', 'BlueFuzz', 'BlueScale', 'LanguageGroup', 'ExpansionFactor', 'ForceBold', 'StdHW', 'StdVW']; for (i = 0, ii = fields.length; i < ii; i++) { var field = fields[i]; if (!(field in properties.privateData)) { continue; } var value = properties.privateData[field]; if ((0, _util.isArray)(value)) { for (var j = value.length - 1; j > 0; j--) { value[j] -= value[j - 1]; } } privateDict.setByName(field, value); } cff.topDict.privateDict = privateDict; var subrIndex = new _cff_parser.CFFIndex(); for (i = 0, ii = subrs.length; i < ii; i++) { subrIndex.add(subrs[i]); } privateDict.subrsIndex = subrIndex; var compiler = new _cff_parser.CFFCompiler(cff); return compiler.compile(); } }; return Type1Font; }(); var CFFFont = function CFFFontClosure() { function CFFFont(file, properties) { this.properties = properties; var parser = new _cff_parser.CFFParser(file, properties, SEAC_ANALYSIS_ENABLED); this.cff = parser.parse(); var compiler = new _cff_parser.CFFCompiler(this.cff); this.seacs = this.cff.seacs; try { this.data = compiler.compile(); } catch (e) { (0, _util.warn)('Failed to compile font ' + properties.loadedName); this.data = file; } } CFFFont.prototype = { get numGlyphs() { return this.cff.charStrings.count; }, getCharset: function CFFFont_getCharset() { return this.cff.charset.charset; }, getGlyphMapping: function CFFFont_getGlyphMapping() { var cff = this.cff; var properties = this.properties; var charsets = cff.charset.charset; var charCodeToGlyphId; var glyphId; if (properties.composite) { charCodeToGlyphId = Object.create(null); if (cff.isCIDFont) { for (glyphId = 0; glyphId < charsets.length; glyphId++) { var cid = charsets[glyphId]; var charCode = properties.cMap.charCodeOf(cid); charCodeToGlyphId[charCode] = glyphId; } } else { for (glyphId = 0; glyphId < cff.charStrings.count; glyphId++) { charCodeToGlyphId[glyphId] = glyphId; } } return charCodeToGlyphId; } var encoding = cff.encoding ? cff.encoding.encoding : null; charCodeToGlyphId = type1FontGlyphMapping(properties, encoding, charsets); return charCodeToGlyphId; } }; return CFFFont; }(); (function checkSeacSupport() { if (typeof navigator !== 'undefined' && /Windows/.test(navigator.userAgent)) { exports.SEAC_ANALYSIS_ENABLED = SEAC_ANALYSIS_ENABLED = true; } })(); (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.PRIVATE_USE_OFFSET_START = PRIVATE_USE_OFFSET_START; exports.PRIVATE_USE_OFFSET_END = PRIVATE_USE_OFFSET_END; exports.ErrorFont = ErrorFont; exports.Font = Font; exports.FontFlags = FontFlags; exports.ToUnicodeMap = ToUnicodeMap; exports.IdentityToUnicodeMap = IdentityToUnicodeMap; exports.ProblematicCharRanges = ProblematicCharRanges; exports.getFontType = getFontType;