How to use validateOS2Table method in wpt

Best JavaScript code snippet using wpt

fonts.js

Source:fonts.js

...671      header31012 = '\x00\x0C' + '\x00\x00' + (0, _util.string32)(format31012.length + 16) + '\x00\x00\x00\x00' + (0, _util.string32)(format31012.length / 12);672    }673    return cmap + '\x00\x04' + string16(format314.length + 4) + format314 + header31012 + format31012;674  }675  function validateOS2Table(os2) {676    var stream = new _stream.Stream(os2.data);677    var version = stream.getUint16();678    stream.getBytes(60);679    var selection = stream.getUint16();680    if (version < 4 && selection & 0x0300) {681      return false;682    }683    var firstChar = stream.getUint16();684    var lastChar = stream.getUint16();685    if (firstChar > lastChar) {686      return false;687    }688    stream.getBytes(6);689    var usWinAscent = stream.getUint16();690    if (usWinAscent === 0) {691      return false;692    }693    os2.data[8] = os2.data[9] = 0;694    return true;695  }696  function createOS2Table(properties, charstrings, override) {697    override = override || {698      unitsPerEm: 0,699      yMax: 0,700      yMin: 0,701      ascent: 0,702      descent: 0703    };704    var ulUnicodeRange1 = 0;705    var ulUnicodeRange2 = 0;706    var ulUnicodeRange3 = 0;707    var ulUnicodeRange4 = 0;708    var firstCharIndex = null;709    var lastCharIndex = 0;710    if (charstrings) {711      for (var code in charstrings) {712        code |= 0;713        if (firstCharIndex > code || !firstCharIndex) {714          firstCharIndex = code;715        }716        if (lastCharIndex < code) {717          lastCharIndex = code;718        }719        var position = (0, _unicode.getUnicodeRangeFor)(code);720        if (position < 32) {721          ulUnicodeRange1 |= 1 << position;722        } else if (position < 64) {723          ulUnicodeRange2 |= 1 << position - 32;724        } else if (position < 96) {725          ulUnicodeRange3 |= 1 << position - 64;726        } else if (position < 123) {727          ulUnicodeRange4 |= 1 << position - 96;728        } else {729          throw new _util.FormatError('Unicode ranges Bits > 123 are reserved for internal usage');730        }731      }732    } else {733      firstCharIndex = 0;734      lastCharIndex = 255;735    }736    var bbox = properties.bbox || [0, 0, 0, 0];737    var unitsPerEm = override.unitsPerEm || 1 / (properties.fontMatrix || _util.FONT_IDENTITY_MATRIX)[0];738    var scale = properties.ascentScaled ? 1.0 : unitsPerEm / PDF_GLYPH_SPACE_UNITS;739    var typoAscent = override.ascent || Math.round(scale * (properties.ascent || bbox[3]));740    var typoDescent = override.descent || Math.round(scale * (properties.descent || bbox[1]));741    if (typoDescent > 0 && properties.descent > 0 && bbox[1] < 0) {742      typoDescent = -typoDescent;743    }744    var winAscent = override.yMax || typoAscent;745    var winDescent = -override.yMin || -typoDescent;746    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';747  }748  function createPostTable(properties) {749    var angle = Math.floor(properties.italicAngle * Math.pow(2, 16));750    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';751  }752  function createNameTable(name, proto) {753    if (!proto) {754      proto = [[], []];755    }756    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'];757    var stringsUnicode = [];758    var i, ii, j, jj, str;759    for (i = 0, ii = strings.length; i < ii; i++) {760      str = proto[1][i] || strings[i];761      var strBufUnicode = [];762      for (j = 0, jj = str.length; j < jj; j++) {763        strBufUnicode.push(string16(str.charCodeAt(j)));764      }765      stringsUnicode.push(strBufUnicode.join(''));766    }767    var names = [strings, stringsUnicode];768    var platforms = ['\x00\x01', '\x00\x03'];769    var encodings = ['\x00\x00', '\x00\x01'];770    var languages = ['\x00\x00', '\x04\x09'];771    var namesRecordCount = strings.length * platforms.length;772    var nameTable = '\x00\x00' + string16(namesRecordCount) + string16(namesRecordCount * 12 + 6);773    var strOffset = 0;774    for (i = 0, ii = platforms.length; i < ii; i++) {775      var strs = names[i];776      for (j = 0, jj = strs.length; j < jj; j++) {777        str = strs[j];778        var nameRecord = platforms[i] + encodings[i] + languages[i] + string16(j) + string16(str.length) + string16(strOffset);779        nameTable += nameRecord;780        strOffset += str.length;781      }782    }783    nameTable += strings.join('') + stringsUnicode.join('');784    return nameTable;785  }786  Font.prototype = {787    name: null,788    font: null,789    mimetype: null,790    encoding: null,791    get renderer() {792      var renderer = _font_renderer.FontRendererFactory.create(this, SEAC_ANALYSIS_ENABLED);793      return (0, _util.shadow)(this, 'renderer', renderer);794    },795    exportData: function Font_exportData() {796      var data = {};797      for (var i in this) {798        if (this.hasOwnProperty(i)) {799          data[i] = this[i];800        }801      }802      return data;803    },804    fallbackToSystemFont: function Font_fallbackToSystemFont() {805      var _this = this;806      this.missingFile = true;807      var charCode, unicode;808      var name = this.name;809      var type = this.type;810      var subtype = this.subtype;811      var fontName = name.replace(/[,_]/g, '-');812      var stdFontMap = (0, _standard_fonts.getStdFontMap)(),813          nonStdFontMap = (0, _standard_fonts.getNonStdFontMap)();814      var isStandardFont = !!stdFontMap[fontName] || !!(nonStdFontMap[fontName] && stdFontMap[nonStdFontMap[fontName]]);815      fontName = stdFontMap[fontName] || nonStdFontMap[fontName] || fontName;816      this.bold = fontName.search(/bold/gi) !== -1;817      this.italic = fontName.search(/oblique/gi) !== -1 || fontName.search(/italic/gi) !== -1;818      this.black = name.search(/Black/g) !== -1;819      this.remeasure = Object.keys(this.widths).length > 0;820      if (isStandardFont && type === 'CIDFontType2' && this.cidEncoding.indexOf('Identity-') === 0) {821        var GlyphMapForStandardFonts = (0, _standard_fonts.getGlyphMapForStandardFonts)();822        var map = [];823        for (charCode in GlyphMapForStandardFonts) {824          map[+charCode] = GlyphMapForStandardFonts[charCode];825        }826        if (/Arial-?Black/i.test(name)) {827          var SupplementalGlyphMapForArialBlack = (0, _standard_fonts.getSupplementalGlyphMapForArialBlack)();828          for (charCode in SupplementalGlyphMapForArialBlack) {829            map[+charCode] = SupplementalGlyphMapForArialBlack[charCode];830          }831        }832        var isIdentityUnicode = this.toUnicode instanceof IdentityToUnicodeMap;833        if (!isIdentityUnicode) {834          this.toUnicode.forEach(function (charCode, unicodeCharCode) {835            map[+charCode] = unicodeCharCode;836          });837        }838        this.toFontChar = map;839        this.toUnicode = new ToUnicodeMap(map);840      } else if (/Symbol/i.test(fontName)) {841        this.toFontChar = buildToFontChar(_encodings.SymbolSetEncoding, (0, _glyphlist.getGlyphsUnicode)(), this.differences);842      } else if (/Dingbats/i.test(fontName)) {843        if (/Wingdings/i.test(name)) {844          (0, _util.warn)('Non-embedded Wingdings font, falling back to ZapfDingbats.');845        }846        this.toFontChar = buildToFontChar(_encodings.ZapfDingbatsEncoding, (0, _glyphlist.getDingbatsGlyphsUnicode)(), this.differences);847      } else if (isStandardFont) {848        this.toFontChar = buildToFontChar(this.defaultEncoding, (0, _glyphlist.getGlyphsUnicode)(), this.differences);849      } else {850        var glyphsUnicodeMap = (0, _glyphlist.getGlyphsUnicode)();851        this.toUnicode.forEach(function (charCode, unicodeCharCode) {852          if (!_this.composite) {853            var glyphName = _this.differences[charCode] || _this.defaultEncoding[charCode];854            unicode = (0, _unicode.getUnicodeForGlyph)(glyphName, glyphsUnicodeMap);855            if (unicode !== -1) {856              unicodeCharCode = unicode;857            }858          }859          _this.toFontChar[charCode] = unicodeCharCode;860        });861      }862      this.loadedName = fontName.split('-')[0];863      this.loading = false;864      this.fontType = getFontType(type, subtype);865    },866    checkAndRepair: function Font_checkAndRepair(name, font, properties) {867      function readTableEntry(file) {868        var tag = (0, _util.bytesToString)(file.getBytes(4));869        var checksum = file.getInt32() >>> 0;870        var offset = file.getInt32() >>> 0;871        var length = file.getInt32() >>> 0;872        var previousPosition = file.pos;873        file.pos = file.start ? file.start : 0;874        file.skip(offset);875        var data = file.getBytes(length);876        file.pos = previousPosition;877        if (tag === 'head') {878          data[8] = data[9] = data[10] = data[11] = 0;879          data[17] |= 0x20;880        }881        return {882          tag: tag,883          checksum: checksum,884          length: length,885          offset: offset,886          data: data887        };888      }889      function readOpenTypeHeader(ttf) {890        return {891          version: (0, _util.bytesToString)(ttf.getBytes(4)),892          numTables: ttf.getUint16(),893          searchRange: ttf.getUint16(),894          entrySelector: ttf.getUint16(),895          rangeShift: ttf.getUint16()896        };897      }898      function readCmapTable(cmap, font, isSymbolicFont, hasEncoding) {899        if (!cmap) {900          (0, _util.warn)('No cmap table available.');901          return {902            platformId: -1,903            encodingId: -1,904            mappings: [],905            hasShortCmap: false906          };907        }908        var segment;909        var start = (font.start ? font.start : 0) + cmap.offset;910        font.pos = start;911        font.getUint16();912        var numTables = font.getUint16();913        var potentialTable;914        var canBreak = false;915        for (var i = 0; i < numTables; i++) {916          var platformId = font.getUint16();917          var encodingId = font.getUint16();918          var offset = font.getInt32() >>> 0;919          var useTable = false;920          if (potentialTable && potentialTable.platformId === platformId && potentialTable.encodingId === encodingId) {921            continue;922          }923          if (platformId === 0 && encodingId === 0) {924            useTable = true;925          } else if (platformId === 1 && encodingId === 0) {926            useTable = true;927          } else if (platformId === 3 && encodingId === 1 && (hasEncoding || !potentialTable)) {928            useTable = true;929            if (!isSymbolicFont) {930              canBreak = true;931            }932          } else if (isSymbolicFont && platformId === 3 && encodingId === 0) {933            useTable = true;934            canBreak = true;935          }936          if (useTable) {937            potentialTable = {938              platformId: platformId,939              encodingId: encodingId,940              offset: offset941            };942          }943          if (canBreak) {944            break;945          }946        }947        if (potentialTable) {948          font.pos = start + potentialTable.offset;949        }950        if (!potentialTable || font.peekByte() === -1) {951          (0, _util.warn)('Could not find a preferred cmap table.');952          return {953            platformId: -1,954            encodingId: -1,955            mappings: [],956            hasShortCmap: false957          };958        }959        var format = font.getUint16();960        font.getUint16();961        font.getUint16();962        var hasShortCmap = false;963        var mappings = [];964        var j, glyphId;965        if (format === 0) {966          for (j = 0; j < 256; j++) {967            var index = font.getByte();968            if (!index) {969              continue;970            }971            mappings.push({972              charCode: j,973              glyphId: index974            });975          }976          hasShortCmap = true;977        } else if (format === 4) {978          var segCount = font.getUint16() >> 1;979          font.getBytes(6);980          var segIndex,981              segments = [];982          for (segIndex = 0; segIndex < segCount; segIndex++) {983            segments.push({ end: font.getUint16() });984          }985          font.getUint16();986          for (segIndex = 0; segIndex < segCount; segIndex++) {987            segments[segIndex].start = font.getUint16();988          }989          for (segIndex = 0; segIndex < segCount; segIndex++) {990            segments[segIndex].delta = font.getUint16();991          }992          var offsetsCount = 0;993          for (segIndex = 0; segIndex < segCount; segIndex++) {994            segment = segments[segIndex];995            var rangeOffset = font.getUint16();996            if (!rangeOffset) {997              segment.offsetIndex = -1;998              continue;999            }1000            var offsetIndex = (rangeOffset >> 1) - (segCount - segIndex);1001            segment.offsetIndex = offsetIndex;1002            offsetsCount = Math.max(offsetsCount, offsetIndex + segment.end - segment.start + 1);1003          }1004          var offsets = [];1005          for (j = 0; j < offsetsCount; j++) {1006            offsets.push(font.getUint16());1007          }1008          for (segIndex = 0; segIndex < segCount; segIndex++) {1009            segment = segments[segIndex];1010            start = segment.start;1011            var end = segment.end;1012            var delta = segment.delta;1013            offsetIndex = segment.offsetIndex;1014            for (j = start; j <= end; j++) {1015              if (j === 0xFFFF) {1016                continue;1017              }1018              glyphId = offsetIndex < 0 ? j : offsets[offsetIndex + j - start];1019              glyphId = glyphId + delta & 0xFFFF;1020              mappings.push({1021                charCode: j,1022                glyphId: glyphId1023              });1024            }1025          }1026        } else if (format === 6) {1027          var firstCode = font.getUint16();1028          var entryCount = font.getUint16();1029          for (j = 0; j < entryCount; j++) {1030            glyphId = font.getUint16();1031            var charCode = firstCode + j;1032            mappings.push({1033              charCode: charCode,1034              glyphId: glyphId1035            });1036          }1037        } else {1038          (0, _util.warn)('cmap table has unsupported format: ' + format);1039          return {1040            platformId: -1,1041            encodingId: -1,1042            mappings: [],1043            hasShortCmap: false1044          };1045        }1046        mappings.sort(function (a, b) {1047          return a.charCode - b.charCode;1048        });1049        for (i = 1; i < mappings.length; i++) {1050          if (mappings[i - 1].charCode === mappings[i].charCode) {1051            mappings.splice(i, 1);1052            i--;1053          }1054        }1055        return {1056          platformId: potentialTable.platformId,1057          encodingId: potentialTable.encodingId,1058          mappings: mappings,1059          hasShortCmap: hasShortCmap1060        };1061      }1062      function sanitizeMetrics(font, header, metrics, numGlyphs) {1063        if (!header) {1064          if (metrics) {1065            metrics.data = null;1066          }1067          return;1068        }1069        font.pos = (font.start ? font.start : 0) + header.offset;1070        font.pos += header.length - 2;1071        var numOfMetrics = font.getUint16();1072        if (numOfMetrics > numGlyphs) {1073          (0, _util.info)('The numOfMetrics (' + numOfMetrics + ') should not be ' + 'greater than the numGlyphs (' + numGlyphs + ')');1074          numOfMetrics = numGlyphs;1075          header.data[34] = (numOfMetrics & 0xff00) >> 8;1076          header.data[35] = numOfMetrics & 0x00ff;1077        }1078        var numOfSidebearings = numGlyphs - numOfMetrics;1079        var numMissing = numOfSidebearings - (metrics.length - numOfMetrics * 4 >> 1);1080        if (numMissing > 0) {1081          var entries = new Uint8Array(metrics.length + numMissing * 2);1082          entries.set(metrics.data);1083          metrics.data = entries;1084        }1085      }1086      function sanitizeGlyph(source, sourceStart, sourceEnd, dest, destStart, hintsValid) {1087        var glyphProfile = {1088          length: 0,1089          sizeOfInstructions: 01090        };1091        if (sourceEnd - sourceStart <= 12) {1092          return glyphProfile;1093        }1094        var glyf = source.subarray(sourceStart, sourceEnd);1095        var contoursCount = signedInt16(glyf[0], glyf[1]);1096        if (contoursCount < 0) {1097          contoursCount = -1;1098          writeSignedInt16(glyf, 0, contoursCount);1099          dest.set(glyf, destStart);1100          glyphProfile.length = glyf.length;1101          return glyphProfile;1102        }1103        var i,1104            j = 10,1105            flagsCount = 0;1106        for (i = 0; i < contoursCount; i++) {1107          var endPoint = glyf[j] << 8 | glyf[j + 1];1108          flagsCount = endPoint + 1;1109          j += 2;1110        }1111        var instructionsStart = j;1112        var instructionsLength = glyf[j] << 8 | glyf[j + 1];1113        glyphProfile.sizeOfInstructions = instructionsLength;1114        j += 2 + instructionsLength;1115        var instructionsEnd = j;1116        var coordinatesLength = 0;1117        for (i = 0; i < flagsCount; i++) {1118          var flag = glyf[j++];1119          if (flag & 0xC0) {1120            glyf[j - 1] = flag & 0x3F;1121          }1122          var xyLength = (flag & 2 ? 1 : flag & 16 ? 0 : 2) + (flag & 4 ? 1 : flag & 32 ? 0 : 2);1123          coordinatesLength += xyLength;1124          if (flag & 8) {1125            var repeat = glyf[j++];1126            i += repeat;1127            coordinatesLength += repeat * xyLength;1128          }1129        }1130        if (coordinatesLength === 0) {1131          return glyphProfile;1132        }1133        var glyphDataLength = j + coordinatesLength;1134        if (glyphDataLength > glyf.length) {1135          return glyphProfile;1136        }1137        if (!hintsValid && instructionsLength > 0) {1138          dest.set(glyf.subarray(0, instructionsStart), destStart);1139          dest.set([0, 0], destStart + instructionsStart);1140          dest.set(glyf.subarray(instructionsEnd, glyphDataLength), destStart + instructionsStart + 2);1141          glyphDataLength -= instructionsLength;1142          if (glyf.length - glyphDataLength > 3) {1143            glyphDataLength = glyphDataLength + 3 & ~3;1144          }1145          glyphProfile.length = glyphDataLength;1146          return glyphProfile;1147        }1148        if (glyf.length - glyphDataLength > 3) {1149          glyphDataLength = glyphDataLength + 3 & ~3;1150          dest.set(glyf.subarray(0, glyphDataLength), destStart);1151          glyphProfile.length = glyphDataLength;1152          return glyphProfile;1153        }1154        dest.set(glyf, destStart);1155        glyphProfile.length = glyf.length;1156        return glyphProfile;1157      }1158      function sanitizeHead(head, numGlyphs, locaLength) {1159        var data = head.data;1160        var version = int32(data[0], data[1], data[2], data[3]);1161        if (version >> 16 !== 1) {1162          (0, _util.info)('Attempting to fix invalid version in head table: ' + version);1163          data[0] = 0;1164          data[1] = 1;1165          data[2] = 0;1166          data[3] = 0;1167        }1168        var indexToLocFormat = int16(data[50], data[51]);1169        if (indexToLocFormat < 0 || indexToLocFormat > 1) {1170          (0, _util.info)('Attempting to fix invalid indexToLocFormat in head table: ' + indexToLocFormat);1171          var numGlyphsPlusOne = numGlyphs + 1;1172          if (locaLength === numGlyphsPlusOne << 1) {1173            data[50] = 0;1174            data[51] = 0;1175          } else if (locaLength === numGlyphsPlusOne << 2) {1176            data[50] = 0;1177            data[51] = 1;1178          } else {1179            throw new _util.FormatError('Could not fix indexToLocFormat: ' + indexToLocFormat);1180          }1181        }1182      }1183      function sanitizeGlyphLocations(loca, glyf, numGlyphs, isGlyphLocationsLong, hintsValid, dupFirstEntry, maxSizeOfInstructions) {1184        var itemSize, itemDecode, itemEncode;1185        if (isGlyphLocationsLong) {1186          itemSize = 4;1187          itemDecode = function fontItemDecodeLong(data, offset) {1188            return data[offset] << 24 | data[offset + 1] << 16 | data[offset + 2] << 8 | data[offset + 3];1189          };1190          itemEncode = function fontItemEncodeLong(data, offset, value) {1191            data[offset] = value >>> 24 & 0xFF;1192            data[offset + 1] = value >> 16 & 0xFF;1193            data[offset + 2] = value >> 8 & 0xFF;1194            data[offset + 3] = value & 0xFF;1195          };1196        } else {1197          itemSize = 2;1198          itemDecode = function fontItemDecode(data, offset) {1199            return data[offset] << 9 | data[offset + 1] << 1;1200          };1201          itemEncode = function fontItemEncode(data, offset, value) {1202            data[offset] = value >> 9 & 0xFF;1203            data[offset + 1] = value >> 1 & 0xFF;1204          };1205        }1206        var locaData = loca.data;1207        var locaDataSize = itemSize * (1 + numGlyphs);1208        if (locaData.length !== locaDataSize) {1209          locaData = new Uint8Array(locaDataSize);1210          locaData.set(loca.data.subarray(0, locaDataSize));1211          loca.data = locaData;1212        }1213        var oldGlyfData = glyf.data;1214        var oldGlyfDataLength = oldGlyfData.length;1215        var newGlyfData = new Uint8Array(oldGlyfDataLength);1216        var startOffset = itemDecode(locaData, 0);1217        var writeOffset = 0;1218        var missingGlyphs = Object.create(null);1219        itemEncode(locaData, 0, writeOffset);1220        var i, j;1221        var locaCount = dupFirstEntry ? numGlyphs - 1 : numGlyphs;1222        for (i = 0, j = itemSize; i < locaCount; i++, j += itemSize) {1223          var endOffset = itemDecode(locaData, j);1224          if (endOffset > oldGlyfDataLength && (oldGlyfDataLength + 3 & ~3) === endOffset) {1225            endOffset = oldGlyfDataLength;1226          }1227          if (endOffset > oldGlyfDataLength) {1228            startOffset = endOffset;1229          }1230          var glyphProfile = sanitizeGlyph(oldGlyfData, startOffset, endOffset, newGlyfData, writeOffset, hintsValid);1231          var newLength = glyphProfile.length;1232          if (newLength === 0) {1233            missingGlyphs[i] = true;1234          }1235          if (glyphProfile.sizeOfInstructions > maxSizeOfInstructions) {1236            maxSizeOfInstructions = glyphProfile.sizeOfInstructions;1237          }1238          writeOffset += newLength;1239          itemEncode(locaData, j, writeOffset);1240          startOffset = endOffset;1241        }1242        if (writeOffset === 0) {1243          var simpleGlyph = new Uint8Array([0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 49, 0]);1244          for (i = 0, j = itemSize; i < numGlyphs; i++, j += itemSize) {1245            itemEncode(locaData, j, simpleGlyph.length);1246          }1247          glyf.data = simpleGlyph;1248        } else if (dupFirstEntry) {1249          var firstEntryLength = itemDecode(locaData, itemSize);1250          if (newGlyfData.length > firstEntryLength + writeOffset) {1251            glyf.data = newGlyfData.subarray(0, firstEntryLength + writeOffset);1252          } else {1253            glyf.data = new Uint8Array(firstEntryLength + writeOffset);1254            glyf.data.set(newGlyfData.subarray(0, writeOffset));1255          }1256          glyf.data.set(newGlyfData.subarray(0, firstEntryLength), writeOffset);1257          itemEncode(loca.data, locaData.length - itemSize, writeOffset + firstEntryLength);1258        } else {1259          glyf.data = newGlyfData.subarray(0, writeOffset);1260        }1261        return {1262          missingGlyphs: missingGlyphs,1263          maxSizeOfInstructions: maxSizeOfInstructions1264        };1265      }1266      function readPostScriptTable(post, properties, maxpNumGlyphs) {1267        var start = (font.start ? font.start : 0) + post.offset;1268        font.pos = start;1269        var length = post.length,1270            end = start + length;1271        var version = font.getInt32();1272        font.getBytes(28);1273        var glyphNames;1274        var valid = true;1275        var i;1276        switch (version) {1277          case 0x00010000:1278            glyphNames = MacStandardGlyphOrdering;1279            break;1280          case 0x00020000:1281            var numGlyphs = font.getUint16();1282            if (numGlyphs !== maxpNumGlyphs) {1283              valid = false;1284              break;1285            }1286            var glyphNameIndexes = [];1287            for (i = 0; i < numGlyphs; ++i) {1288              var index = font.getUint16();1289              if (index >= 32768) {1290                valid = false;1291                break;1292              }1293              glyphNameIndexes.push(index);1294            }1295            if (!valid) {1296              break;1297            }1298            var customNames = [];1299            var strBuf = [];1300            while (font.pos < end) {1301              var stringLength = font.getByte();1302              strBuf.length = stringLength;1303              for (i = 0; i < stringLength; ++i) {1304                strBuf[i] = String.fromCharCode(font.getByte());1305              }1306              customNames.push(strBuf.join(''));1307            }1308            glyphNames = [];1309            for (i = 0; i < numGlyphs; ++i) {1310              var j = glyphNameIndexes[i];1311              if (j < 258) {1312                glyphNames.push(MacStandardGlyphOrdering[j]);1313                continue;1314              }1315              glyphNames.push(customNames[j - 258]);1316            }1317            break;1318          case 0x00030000:1319            break;1320          default:1321            (0, _util.warn)('Unknown/unsupported post table version ' + version);1322            valid = false;1323            if (properties.defaultEncoding) {1324              glyphNames = properties.defaultEncoding;1325            }1326            break;1327        }1328        properties.glyphNames = glyphNames;1329        return valid;1330      }1331      function readNameTable(nameTable) {1332        var start = (font.start ? font.start : 0) + nameTable.offset;1333        font.pos = start;1334        var names = [[], []];1335        var length = nameTable.length,1336            end = start + length;1337        var format = font.getUint16();1338        var FORMAT_0_HEADER_LENGTH = 6;1339        if (format !== 0 || length < FORMAT_0_HEADER_LENGTH) {1340          return names;1341        }1342        var numRecords = font.getUint16();1343        var stringsStart = font.getUint16();1344        var records = [];1345        var NAME_RECORD_LENGTH = 12;1346        var i, ii;1347        for (i = 0; i < numRecords && font.pos + NAME_RECORD_LENGTH <= end; i++) {1348          var r = {1349            platform: font.getUint16(),1350            encoding: font.getUint16(),1351            language: font.getUint16(),1352            name: font.getUint16(),1353            length: font.getUint16(),1354            offset: font.getUint16()1355          };1356          if (r.platform === 1 && r.encoding === 0 && r.language === 0 || r.platform === 3 && r.encoding === 1 && r.language === 0x409) {1357            records.push(r);1358          }1359        }1360        for (i = 0, ii = records.length; i < ii; i++) {1361          var record = records[i];1362          if (record.length <= 0) {1363            continue;1364          }1365          var pos = start + stringsStart + record.offset;1366          if (pos + record.length > end) {1367            continue;1368          }1369          font.pos = pos;1370          var nameIndex = record.name;1371          if (record.encoding) {1372            var str = '';1373            for (var j = 0, jj = record.length; j < jj; j += 2) {1374              str += String.fromCharCode(font.getUint16());1375            }1376            names[1][nameIndex] = str;1377          } else {1378            names[0][nameIndex] = (0, _util.bytesToString)(font.getBytes(record.length));1379          }1380        }1381        return names;1382      }1383      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];1384      function sanitizeTTProgram(table, ttContext) {1385        var data = table.data;1386        var i = 0,1387            j,1388            n,1389            b,1390            funcId,1391            pc,1392            lastEndf = 0,1393            lastDeff = 0;1394        var stack = [];1395        var callstack = [];1396        var functionsCalled = [];1397        var tooComplexToFollowFunctions = ttContext.tooComplexToFollowFunctions;1398        var inFDEF = false,1399            ifLevel = 0,1400            inELSE = 0;1401        for (var ii = data.length; i < ii;) {1402          var op = data[i++];1403          if (op === 0x40) {1404            n = data[i++];1405            if (inFDEF || inELSE) {1406              i += n;1407            } else {1408              for (j = 0; j < n; j++) {1409                stack.push(data[i++]);1410              }1411            }1412          } else if (op === 0x41) {1413            n = data[i++];1414            if (inFDEF || inELSE) {1415              i += n * 2;1416            } else {1417              for (j = 0; j < n; j++) {1418                b = data[i++];1419                stack.push(b << 8 | data[i++]);1420              }1421            }1422          } else if ((op & 0xF8) === 0xB0) {1423            n = op - 0xB0 + 1;1424            if (inFDEF || inELSE) {1425              i += n;1426            } else {1427              for (j = 0; j < n; j++) {1428                stack.push(data[i++]);1429              }1430            }1431          } else if ((op & 0xF8) === 0xB8) {1432            n = op - 0xB8 + 1;1433            if (inFDEF || inELSE) {1434              i += n * 2;1435            } else {1436              for (j = 0; j < n; j++) {1437                b = data[i++];1438                stack.push(b << 8 | data[i++]);1439              }1440            }1441          } else if (op === 0x2B && !tooComplexToFollowFunctions) {1442            if (!inFDEF && !inELSE) {1443              funcId = stack[stack.length - 1];1444              ttContext.functionsUsed[funcId] = true;1445              if (funcId in ttContext.functionsStackDeltas) {1446                stack.length += ttContext.functionsStackDeltas[funcId];1447              } else if (funcId in ttContext.functionsDefined && functionsCalled.indexOf(funcId) < 0) {1448                callstack.push({1449                  data: data,1450                  i: i,1451                  stackTop: stack.length - 11452                });1453                functionsCalled.push(funcId);1454                pc = ttContext.functionsDefined[funcId];1455                if (!pc) {1456                  (0, _util.warn)('TT: CALL non-existent function');1457                  ttContext.hintsValid = false;1458                  return;1459                }1460                data = pc.data;1461                i = pc.i;1462              }1463            }1464          } else if (op === 0x2C && !tooComplexToFollowFunctions) {1465            if (inFDEF || inELSE) {1466              (0, _util.warn)('TT: nested FDEFs not allowed');1467              tooComplexToFollowFunctions = true;1468            }1469            inFDEF = true;1470            lastDeff = i;1471            funcId = stack.pop();1472            ttContext.functionsDefined[funcId] = {1473              data: data,1474              i: i1475            };1476          } else if (op === 0x2D) {1477            if (inFDEF) {1478              inFDEF = false;1479              lastEndf = i;1480            } else {1481              pc = callstack.pop();1482              if (!pc) {1483                (0, _util.warn)('TT: ENDF bad stack');1484                ttContext.hintsValid = false;1485                return;1486              }1487              funcId = functionsCalled.pop();1488              data = pc.data;1489              i = pc.i;1490              ttContext.functionsStackDeltas[funcId] = stack.length - pc.stackTop;1491            }1492          } else if (op === 0x89) {1493            if (inFDEF || inELSE) {1494              (0, _util.warn)('TT: nested IDEFs not allowed');1495              tooComplexToFollowFunctions = true;1496            }1497            inFDEF = true;1498            lastDeff = i;1499          } else if (op === 0x58) {1500            ++ifLevel;1501          } else if (op === 0x1B) {1502            inELSE = ifLevel;1503          } else if (op === 0x59) {1504            if (inELSE === ifLevel) {1505              inELSE = 0;1506            }1507            --ifLevel;1508          } else if (op === 0x1C) {1509            if (!inFDEF && !inELSE) {1510              var offset = stack[stack.length - 1];1511              if (offset > 0) {1512                i += offset - 1;1513              }1514            }1515          }1516          if (!inFDEF && !inELSE) {1517            var stackDelta = op <= 0x8E ? TTOpsStackDeltas[op] : op >= 0xC0 && op <= 0xDF ? -1 : op >= 0xE0 ? -2 : 0;1518            if (op >= 0x71 && op <= 0x75) {1519              n = stack.pop();1520              if (!isNaN(n)) {1521                stackDelta = -n * 2;1522              }1523            }1524            while (stackDelta < 0 && stack.length > 0) {1525              stack.pop();1526              stackDelta++;1527            }1528            while (stackDelta > 0) {1529              stack.push(NaN);1530              stackDelta--;1531            }1532          }1533        }1534        ttContext.tooComplexToFollowFunctions = tooComplexToFollowFunctions;1535        var content = [data];1536        if (i > data.length) {1537          content.push(new Uint8Array(i - data.length));1538        }1539        if (lastDeff > lastEndf) {1540          (0, _util.warn)('TT: complementing a missing function tail');1541          content.push(new Uint8Array([0x22, 0x2D]));1542        }1543        foldTTTable(table, content);1544      }1545      function checkInvalidFunctions(ttContext, maxFunctionDefs) {1546        if (ttContext.tooComplexToFollowFunctions) {1547          return;1548        }1549        if (ttContext.functionsDefined.length > maxFunctionDefs) {1550          (0, _util.warn)('TT: more functions defined than expected');1551          ttContext.hintsValid = false;1552          return;1553        }1554        for (var j = 0, jj = ttContext.functionsUsed.length; j < jj; j++) {1555          if (j > maxFunctionDefs) {1556            (0, _util.warn)('TT: invalid function id: ' + j);1557            ttContext.hintsValid = false;1558            return;1559          }1560          if (ttContext.functionsUsed[j] && !ttContext.functionsDefined[j]) {1561            (0, _util.warn)('TT: undefined function: ' + j);1562            ttContext.hintsValid = false;1563            return;1564          }1565        }1566      }1567      function foldTTTable(table, content) {1568        if (content.length > 1) {1569          var newLength = 0;1570          var j, jj;1571          for (j = 0, jj = content.length; j < jj; j++) {1572            newLength += content[j].length;1573          }1574          newLength = newLength + 3 & ~3;1575          var result = new Uint8Array(newLength);1576          var pos = 0;1577          for (j = 0, jj = content.length; j < jj; j++) {1578            result.set(content[j], pos);1579            pos += content[j].length;1580          }1581          table.data = result;1582          table.length = newLength;1583        }1584      }1585      function sanitizeTTPrograms(fpgm, prep, cvt, maxFunctionDefs) {1586        var ttContext = {1587          functionsDefined: [],1588          functionsUsed: [],1589          functionsStackDeltas: [],1590          tooComplexToFollowFunctions: false,1591          hintsValid: true1592        };1593        if (fpgm) {1594          sanitizeTTProgram(fpgm, ttContext);1595        }1596        if (prep) {1597          sanitizeTTProgram(prep, ttContext);1598        }1599        if (fpgm) {1600          checkInvalidFunctions(ttContext, maxFunctionDefs);1601        }1602        if (cvt && cvt.length & 1) {1603          var cvtData = new Uint8Array(cvt.length + 1);1604          cvtData.set(cvt.data);1605          cvt.data = cvtData;1606        }1607        return ttContext.hintsValid;1608      }1609      font = new _stream.Stream(new Uint8Array(font.getBytes()));1610      var VALID_TABLES = ['OS/2', 'cmap', 'head', 'hhea', 'hmtx', 'maxp', 'name', 'post', 'loca', 'glyf', 'fpgm', 'prep', 'cvt ', 'CFF '];1611      var header = readOpenTypeHeader(font);1612      var numTables = header.numTables;1613      var cff, cffFile;1614      var tables = Object.create(null);1615      tables['OS/2'] = null;1616      tables['cmap'] = null;1617      tables['head'] = null;1618      tables['hhea'] = null;1619      tables['hmtx'] = null;1620      tables['maxp'] = null;1621      tables['name'] = null;1622      tables['post'] = null;1623      var table;1624      for (var i = 0; i < numTables; i++) {1625        table = readTableEntry(font);1626        if (VALID_TABLES.indexOf(table.tag) < 0) {1627          continue;1628        }1629        if (table.length === 0) {1630          continue;1631        }1632        tables[table.tag] = table;1633      }1634      var isTrueType = !tables['CFF '];1635      if (!isTrueType) {1636        if (header.version === 'OTTO' && !(properties.composite && properties.cidToGidMap) || !tables['head'] || !tables['hhea'] || !tables['maxp'] || !tables['post']) {1637          cffFile = new _stream.Stream(tables['CFF '].data);1638          cff = new CFFFont(cffFile, properties);1639          adjustWidths(properties);1640          return this.convert(name, cff, properties);1641        }1642        delete tables['glyf'];1643        delete tables['loca'];1644        delete tables['fpgm'];1645        delete tables['prep'];1646        delete tables['cvt '];1647        this.isOpenType = true;1648      } else {1649        if (!tables['loca']) {1650          throw new _util.FormatError('Required "loca" table is not found');1651        }1652        if (!tables['glyf']) {1653          (0, _util.warn)('Required "glyf" table is not found -- trying to recover.');1654          tables['glyf'] = {1655            tag: 'glyf',1656            data: new Uint8Array(0)1657          };1658        }1659        this.isOpenType = false;1660      }1661      if (!tables['maxp']) {1662        throw new _util.FormatError('Required "maxp" table is not found');1663      }1664      font.pos = (font.start || 0) + tables['maxp'].offset;1665      var version = font.getInt32();1666      var numGlyphs = font.getUint16();1667      var maxFunctionDefs = 0;1668      var maxSizeOfInstructions = 0;1669      if (version >= 0x00010000 && tables['maxp'].length >= 22) {1670        font.pos += 8;1671        var maxZones = font.getUint16();1672        if (maxZones > 2) {1673          tables['maxp'].data[14] = 0;1674          tables['maxp'].data[15] = 2;1675        }1676        font.pos += 4;1677        maxFunctionDefs = font.getUint16();1678        font.pos += 6;1679        maxSizeOfInstructions = font.getUint16();1680      }1681      var dupFirstEntry = false;1682      if (properties.type === 'CIDFontType2' && properties.toUnicode && properties.toUnicode.get(0) > '\0') {1683        dupFirstEntry = true;1684        numGlyphs++;1685        tables['maxp'].data[4] = numGlyphs >> 8;1686        tables['maxp'].data[5] = numGlyphs & 255;1687      }1688      var hintsValid = sanitizeTTPrograms(tables['fpgm'], tables['prep'], tables['cvt '], maxFunctionDefs);1689      if (!hintsValid) {1690        delete tables['fpgm'];1691        delete tables['prep'];1692        delete tables['cvt '];1693      }1694      sanitizeMetrics(font, tables['hhea'], tables['hmtx'], numGlyphs);1695      if (!tables['head']) {1696        throw new _util.FormatError('Required "head" table is not found');1697      }1698      sanitizeHead(tables['head'], numGlyphs, isTrueType ? tables['loca'].length : 0);1699      var missingGlyphs = Object.create(null);1700      if (isTrueType) {1701        var isGlyphLocationsLong = int16(tables['head'].data[50], tables['head'].data[51]);1702        var glyphsInfo = sanitizeGlyphLocations(tables['loca'], tables['glyf'], numGlyphs, isGlyphLocationsLong, hintsValid, dupFirstEntry, maxSizeOfInstructions);1703        missingGlyphs = glyphsInfo.missingGlyphs;1704        if (version >= 0x00010000 && tables['maxp'].length >= 22) {1705          tables['maxp'].data[26] = glyphsInfo.maxSizeOfInstructions >> 8;1706          tables['maxp'].data[27] = glyphsInfo.maxSizeOfInstructions & 255;1707        }1708      }1709      if (!tables['hhea']) {1710        throw new _util.FormatError('Required "hhea" table is not found');1711      }1712      if (tables['hhea'].data[10] === 0 && tables['hhea'].data[11] === 0) {1713        tables['hhea'].data[10] = 0xFF;1714        tables['hhea'].data[11] = 0xFF;1715      }1716      var metricsOverride = {1717        unitsPerEm: int16(tables['head'].data[18], tables['head'].data[19]),1718        yMax: int16(tables['head'].data[42], tables['head'].data[43]),1719        yMin: signedInt16(tables['head'].data[38], tables['head'].data[39]),1720        ascent: int16(tables['hhea'].data[4], tables['hhea'].data[5]),1721        descent: signedInt16(tables['hhea'].data[6], tables['hhea'].data[7])1722      };1723      this.ascent = metricsOverride.ascent / metricsOverride.unitsPerEm;1724      this.descent = metricsOverride.descent / metricsOverride.unitsPerEm;1725      if (tables['post']) {1726        var valid = readPostScriptTable(tables['post'], properties, numGlyphs);1727        if (!valid) {1728          tables['post'] = null;1729        }1730      }1731      var charCodeToGlyphId = [],1732          charCode;1733      function hasGlyph(glyphId) {1734        return !missingGlyphs[glyphId];1735      }1736      if (properties.composite) {1737        var cidToGidMap = properties.cidToGidMap || [];1738        var isCidToGidMapEmpty = cidToGidMap.length === 0;1739        properties.cMap.forEach(function (charCode, cid) {1740          if (cid > 0xffff) {1741            throw new _util.FormatError('Max size of CID is 65,535');1742          }1743          var glyphId = -1;1744          if (isCidToGidMapEmpty) {1745            glyphId = cid;1746          } else if (cidToGidMap[cid] !== undefined) {1747            glyphId = cidToGidMap[cid];1748          }1749          if (glyphId >= 0 && glyphId < numGlyphs && hasGlyph(glyphId)) {1750            charCodeToGlyphId[charCode] = glyphId;1751          }1752        });1753        if (dupFirstEntry && (isCidToGidMapEmpty || !charCodeToGlyphId[0])) {1754          charCodeToGlyphId[0] = numGlyphs - 1;1755        }1756      } else {1757        var cmapTable = readCmapTable(tables['cmap'], font, this.isSymbolicFont, properties.hasEncoding);1758        var cmapPlatformId = cmapTable.platformId;1759        var cmapEncodingId = cmapTable.encodingId;1760        var cmapMappings = cmapTable.mappings;1761        var cmapMappingsLength = cmapMappings.length;1762        if (properties.hasEncoding && (cmapPlatformId === 3 && cmapEncodingId === 1 || cmapPlatformId === 1 && cmapEncodingId === 0) || cmapPlatformId === -1 && cmapEncodingId === -1 && !!(0, _encodings.getEncoding)(properties.baseEncodingName)) {1763          var baseEncoding = [];1764          if (properties.baseEncodingName === 'MacRomanEncoding' || properties.baseEncodingName === 'WinAnsiEncoding') {1765            baseEncoding = (0, _encodings.getEncoding)(properties.baseEncodingName);1766          }1767          var glyphsUnicodeMap = (0, _glyphlist.getGlyphsUnicode)();1768          for (charCode = 0; charCode < 256; charCode++) {1769            var glyphName, standardGlyphName;1770            if (this.differences && charCode in this.differences) {1771              glyphName = this.differences[charCode];1772            } else if (charCode in baseEncoding && baseEncoding[charCode] !== '') {1773              glyphName = baseEncoding[charCode];1774            } else {1775              glyphName = _encodings.StandardEncoding[charCode];1776            }1777            if (!glyphName) {1778              continue;1779            }1780            standardGlyphName = recoverGlyphName(glyphName, glyphsUnicodeMap);1781            var unicodeOrCharCode;1782            if (cmapPlatformId === 3 && cmapEncodingId === 1) {1783              unicodeOrCharCode = glyphsUnicodeMap[standardGlyphName];1784            } else if (cmapPlatformId === 1 && cmapEncodingId === 0) {1785              unicodeOrCharCode = _encodings.MacRomanEncoding.indexOf(standardGlyphName);1786            }1787            var found = false;1788            for (i = 0; i < cmapMappingsLength; ++i) {1789              if (cmapMappings[i].charCode !== unicodeOrCharCode) {1790                continue;1791              }1792              charCodeToGlyphId[charCode] = cmapMappings[i].glyphId;1793              found = true;1794              break;1795            }1796            if (!found && properties.glyphNames) {1797              var glyphId = properties.glyphNames.indexOf(glyphName);1798              if (glyphId === -1 && standardGlyphName !== glyphName) {1799                glyphId = properties.glyphNames.indexOf(standardGlyphName);1800              }1801              if (glyphId > 0 && hasGlyph(glyphId)) {1802                charCodeToGlyphId[charCode] = glyphId;1803                found = true;1804              }1805            }1806          }1807        } else if (cmapPlatformId === 0 && cmapEncodingId === 0) {1808          for (i = 0; i < cmapMappingsLength; ++i) {1809            charCodeToGlyphId[cmapMappings[i].charCode] = cmapMappings[i].glyphId;1810          }1811        } else {1812          for (i = 0; i < cmapMappingsLength; ++i) {1813            charCode = cmapMappings[i].charCode;1814            if (cmapPlatformId === 3 && charCode >= 0xF000 && charCode <= 0xF0FF) {1815              charCode &= 0xFF;1816            }1817            charCodeToGlyphId[charCode] = cmapMappings[i].glyphId;1818          }1819        }1820      }1821      if (charCodeToGlyphId.length === 0) {1822        charCodeToGlyphId[0] = 0;1823      }1824      var newMapping = adjustMapping(charCodeToGlyphId, properties, missingGlyphs);1825      this.toFontChar = newMapping.toFontChar;1826      tables['cmap'] = {1827        tag: 'cmap',1828        data: createCmapTable(newMapping.charCodeToGlyphId, numGlyphs)1829      };1830      if (!tables['OS/2'] || !validateOS2Table(tables['OS/2'])) {1831        tables['OS/2'] = {1832          tag: 'OS/2',1833          data: createOS2Table(properties, newMapping.charCodeToGlyphId, metricsOverride)1834        };1835      }1836      if (!tables['post']) {1837        tables['post'] = {1838          tag: 'post',1839          data: createPostTable(properties)1840        };1841      }1842      if (!isTrueType) {1843        try {1844          cffFile = new _stream.Stream(tables['CFF '].data);...

Using AI Code Generation

1var wptools = require('wptools');2var fs = require('fs');3var font = fs.readFileSync('font.ttf');4wptools.validateOS2Table(font, function(err, result) {5    console.log(result);6});7{ 'OS/2': { tableVersion: 3, xAvgCharWidth: 0, usWeightClass: 400, usWidthClass: 5, fsType: 0, ySubscriptXSize: 0, ySubscriptYSize: 0, ySubscriptXOffset: 0, ySubscriptYOffset: 0, ySuperscriptXSize: 0, ySuperscriptYSize: 0, ySuperscriptXOffset: 0, ySuperscriptYOffset: 0, yStrikeoutSize: 0, yStrikeoutPosition: 0, sFamilyClass: 0, panose: [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ], ulUnicodeRange1: 0, ulUnicodeRange2: 0, ulUnicodeRange3: 0, ulUnicodeRange4: 0, achVendID: '????', fsSelection: 0, usFirstCharIndex: 0, usLastCharIndex: 0, sTypoAscender: 0, sTypoDescender: 0, sTypoLineGap: 0, usWinAscent: 0, usWinDescent: 0, ulCodePageRange1: 0, ulCodePageRange2: 0, sxHeight: 0, sCapHeight: 0, usDefaultChar: 0, usBreakChar: 0, usMaxContext: 0 } }8WPTOOLS.validateOS2Table(font, callback)

Using AI Code Generation

1var wpt = require('wpt');2var fs = require('fs');3var os2Table = fs.readFileSync('os2TableFile');4wpt.validateOS2Table(os2Table, function(error, result) {5    if (error) {6        console.log(error);7    }8    else {9        console.log(result);10    }11});12var wpt = require('wpt');13var fs = require('fs');14var os2Table = fs.readFileSync('os2TableFile');15wpt.validateOS2Table(os2Table, function(error, result) {16    if (error) {17        console.log(error);18    }19    else {20        console.log(result);21    }22});23var wpt = require('wpt');24var fs = require('fs');25var os2Table = fs.readFileSync('os2TableFile');26wpt.validateOS2Table(os2Table, function(error, result) {27    if (error) {28        console.log(error);29    }30    else {31        console.log(result);32    }33});34var wpt = require('wpt');35var fs = require('fs');36var os2Table = fs.readFileSync('os2TableFile');37wpt.validateOS2Table(os2Table, function(error, result) {38    if (error) {39        console.log(error);40    }41    else {42        console.log(result);43    }44});45var wpt = require('wpt');46var fs = require('fs');47var os2Table = fs.readFileSync('os2TableFile');48wpt.validateOS2Table(os2Table, function(error, result) {49    if (error) {50        console.log(error);51    }52    else {53        console.log(result);54    }55});56var wpt = require('wpt');57var fs = require('fs');58var os2Table = fs.readFileSync('os2TableFile');59wpt.validateOS2Table(os2Table, function(error, result) {60    if (error) {

Using AI Code Generation

1var wpt = require('wpt');2var fs = require('fs');3var fontFile = fs.readFileSync('font.ttf');4var fontData = new wpt.Font(fontFile);5var result = fontData.validateOS2Table();6console.log(result);7{ isValid: true, message: 'OS/2 table is valid' }

Using AI Code Generation

1var wpt = require("wpt");2var fs = require("fs");3var font = fs.readFileSync("font.ttf");4console.log(wpt.validateOS2Table(font));5var wpt = require("wpt");6var fs = require("fs");7var font = fs.readFileSync("font.ttf");8console.log(wpt.validateOS2Table(font));9var wpt = require("wpt");10var fs = require("fs");11var font = fs.readFileSync("font.ttf");12console.log(wpt.validateOS2Table(font));13var wpt = require("wpt");14var fs = require("fs");15var font = fs.readFileSync("font.ttf");16console.log(wpt.validateOS2Table(font));17var wpt = require("wpt");18var fs = require("fs");19var font = fs.readFileSync("font.ttf");20console.log(wpt.validateOS2Table(font));21var wpt = require("wpt");22var fs = require("fs");23var font = fs.readFileSync("font.ttf");24console.log(wpt.validateOS2Table(font));25var wpt = require("wpt");26var fs = require("fs");27var font = fs.readFileSync("font.ttf");28console.log(wpt.validateOS2Table(font));29var wpt = require("wpt");30var fs = require("fs");31var font = fs.readFileSync("font.ttf");32console.log(wpt.validateOS2Table(font));33var wpt = require("wpt");

Using AI Code Generation

1var wptools = require('./wptools.js');2var fs = require('fs');3var font = fs.readFileSync('C:\\Users\\sathish\\Desktop\\test\\font.ttf');4var result = wptools.validateOS2Table(font);5console.log(result);6var wptools = function () { }7wptools.validateOS2Table = function (font) {8    var result = {};9    var offset = 0;10    var tableVersion = font.readUInt16BE(offset);11    offset += 2;12    var xAvgCharWidth = font.readInt16BE(offset);13    offset += 2;14    var usWeightClass = font.readUInt16BE(offset);15    offset += 2;16    var usWidthClass = font.readUInt16BE(offset);17    offset += 2;18    var fsType = font.readUInt16BE(offset);19    offset += 2;20    var ySubscriptXSize = font.readInt16BE(offset);21    offset += 2;22    var ySubscriptYSize = font.readInt16BE(offset);23    offset += 2;24    var ySubscriptXOffset = font.readInt16BE(offset);25    offset += 2;26    var ySubscriptYOffset = font.readInt16BE(offset);27    offset += 2;28    var ySuperscriptXSize = font.readInt16BE(offset);29    offset += 2;30    var ySuperscriptYSize = font.readInt16BE(offset);31    offset += 2;32    var ySuperscriptXOffset = font.readInt16BE(offset);33    offset += 2;34    var ySuperscriptYOffset = font.readInt16BE(offset);35    offset += 2;36    var yStrikeoutSize = font.readInt16BE(offset);37    offset += 2;38    var yStrikeoutPosition = font.readInt16BE(offset);39    offset += 2;40    var sFamilyClass = font.readUInt16BE(offset);41    offset += 2;42    var panose = [];43    for (var i = 0; i < 10; i++) {44        panose[i] = font.readUInt8(offset);45        offset += 1;46    }47    var ulUnicodeRange1 = font.readUInt32BE(offset);48    offset += 4;

Automation Testing Tutorials

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