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How to use CFFEncoding method in wpt

Best JavaScript code snippet using wpt

fonts_utils.js

Source:fonts_utils.js

1/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */2/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */3/* Copyright 2012 Mozilla Foundation4 *5 * Licensed under the Apache License, Version 2.0 (the "License");6 * you may not use this file except in compliance with the License.7 * You may obtain a copy of the License at8 *9 *     http://www.apache.org/licenses/LICENSE-2.010 *11 * Unless required by applicable law or agreed to in writing, software12 * distributed under the License is distributed on an "AS IS" BASIS,13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.14 * See the License for the specific language governing permissions and15 * limitations under the License.16 */17/* globals CFFDictDataMap, CFFDictPrivateDataMap, CFFEncodingMap, CFFStrings,18           Components, Dict, dump, error, isNum, netscape, Stream */19'use strict';20/*21 * The Type2 reader code below is only used for debugging purpose since Type222 * is only a CharString format and is never used directly as a Font file.23 *24 * So the code here is useful for dumping the data content of a .cff file in25 * order to investigate the similarity between a Type1 CharString and a Type226 * CharString or to understand the structure of the CFF format.27 */28/*29 * Build a charset by assigning the glyph name and the human readable form30 * of the glyph data.31 */32function readCharset(aStream, aCharstrings) {33  var charset = {};34  var format = aStream.getByte();35  var count = aCharstrings.length - 1;36  var i, sid;37  if (format === 0) {38    charset['.notdef'] = readCharstringEncoding(aCharstrings[0]);39    for (i = 1; i < count + 1; i++) {40      sid = aStream.getByte() << 8 | aStream.getByte();41      charset[CFFStrings[sid]] = readCharstringEncoding(aCharstrings[i]);42    }43  } else if (format === 1) {44    for (i = 1; i < count + 1; i++) {45      var first = aStream.getByte();46      first = (first << 8) | aStream.getByte();47      var numLeft = aStream.getByte();48      for (var j = 0; j <= numLeft; j++) {49        sid = first++;50        charset[CFFStrings[sid]] = readCharstringEncoding(aCharstrings[j]);51      }52    }53  } else {54    error('Invalid charset format');55  }56  return charset;57}58/*59 * Take a Type2 binary charstring as input and transform it to a human60 * readable representation as specified by the 'The Type 2 Charstring Format',61 * chapter 3.1.62 */63function readCharstringEncoding(aString) {64  if (!aString) {65    return '';66  }67  var charstringTokens = [];68  var count = aString.length;69  for (var i = 0; i < count; ) {70    var value = aString[i++] | 0;71    var token = null;72    if (value < 0) {73      continue;74    } else if (value <= 11) {75      token = CFFEncodingMap[value];76    } else if (value === 12) {77      token = CFFEncodingMap[value][aString[i++]];78    } else if (value <= 18) {79      token = CFFEncodingMap[value];80    } else if (value <= 20) {81      ++i; // var mask = aString[i++];82      token = CFFEncodingMap[value];83    } else if (value <= 27) {84      token = CFFEncodingMap[value];85    } else if (value === 28) {86      token = aString[i++] << 8 | aString[i++];87    } else if (value <= 31) {88      token = CFFEncodingMap[value];89    } else if (value < 247) {90      token = parseInt(value, 10) - 139;91    } else if (value < 251) {92      token = (value - 247) * 256 + aString[i++] + 108;93    } else if (value < 255) {94      token = -(value - 251) * 256 - aString[i++] - 108;95    } else { // value === 25596      token = aString[i++] << 24 | aString[i++] << 16 |97              aString[i++] << 8 | aString[i];98    }99    charstringTokens.push(token);100  }101  return charstringTokens;102}103/*104 * Take a binary DICT Data as input and transform it into a human readable105 * form as specified by 'The Compact Font Format Specification', chapter 5.106 */107function readFontDictData(aString, aMap) {108  var fontDictDataTokens = [];109  var count = aString.length;110  for (var i = 0; i < count; i) {111    var value = aString[i++] | 0;112    var token = null;113    if (value === 12) {114      token = aMap[value][aString[i++]];115    } else if (value === 28) {116      token = aString[i++] << 8 | aString[i++];117    } else if (value === 29) {118      token = aString[i++] << 24 |119              aString[i++] << 16 |120              aString[i++] << 8 |121              aString[i++];122    } else if (value === 30) {123      token = '';124      var parsed = false;125      while (!parsed) {126        var octet = aString[i++];127        var nibbles = [parseInt(octet / 16, 10), parseInt(octet % 16, 10)];128        for (var j = 0; j < nibbles.length; j++) {129          var nibble = nibbles[j];130          switch (nibble) {131            case 0xA:132              token += '.';133              break;134            case 0xB:135              token += 'E';136              break;137            case 0xC:138              token += 'E-';139              break;140            case 0xD:141              break;142            case 0xE:143              token += '-';144              break;145            case 0xF:146              parsed = true;147              break;148            default:149              token += nibble;150              break;151          }152        }153      }154      token = parseFloat(token);155    } else if (value <= 31) {156      token = aMap[value];157    } else if (value <= 246) {158      token = parseInt(value, 10) - 139;159    } else if (value <= 250) {160      token = (value - 247) * 256 + aString[i++] + 108;161    } else if (value <= 254) {162      token = -(value - 251) * 256 - aString[i++] - 108;163    } else if (value === 255) {164      error('255 is not a valid DICT command');165    }166    fontDictDataTokens.push(token);167  }168  return fontDictDataTokens;169}170/*171 * Take a stream as input and return an array of objects.172 * In CFF an INDEX is a structure with the following format:173 *  {174 *    count: 2 bytes (Number of objects stored in INDEX),175 *    offsize: 1 byte (Offset array element size),176 *    offset: [count + 1] bytes (Offsets array),177 *    data: - (Objects data)178 *  }179 *180 *  More explanation are given in the 'CFF Font Format Specification',181 *  chapter 5.182 */183function readFontIndexData(aStream, aIsByte) {184  var count = aStream.getByte() << 8 | aStream.getByte();185  var offsize = aStream.getByte();186  function getNextOffset() {187    switch (offsize) {188      case 0:189        return 0;190      case 1:191        return aStream.getByte();192      case 2:193        return aStream.getByte() << 8 | aStream.getByte();194      case 3:195        return aStream.getByte() << 16 | aStream.getByte() << 8 |196               aStream.getByte();197      case 4:198      return aStream.getByte() << 24 | aStream.getByte() << 16 |199             aStream.getByte() << 8 | aStream.getByte();200    }201    error(offsize + ' is not a valid offset size');202    return null;203  }204  var offsets = [];205  var i;206  for (i = 0; i < count + 1; i++) {207    offsets.push(getNextOffset());208  }209  dump('Found ' + count + ' objects at offsets :' +210       offsets + ' (offsize: ' + offsize + ')');211  // Now extract the objects212  var relativeOffset = aStream.pos;213  var objects = [];214  for (i = 0; i < count; i++) {215    var offset = offsets[i];216    aStream.pos = relativeOffset + offset - 1;217    var data = [];218    var length = offsets[i + 1] - 1;219    for (var j = offset - 1; j < length; j++) {220      data.push(aIsByte ? aStream.getByte() : aStream.getChar());221    }222    objects.push(data);223  }224  return objects;225}226var Type2Parser = function type2Parser(aFilePath) {227  var font = new Dict(null);228  var xhr = new XMLHttpRequest();229  xhr.open('GET', aFilePath, false);230  xhr.responseType = 'arraybuffer';231  xhr.expected = (document.URL.indexOf('file:') === 0) ? 0 : 200;232  xhr.send(null);233  this.data = new Stream(xhr.response);234  // Turn on this flag for additional debugging logs235  var debug = false;236  function dump(aStr) {237    if (debug) {238      console.log(aStr);239    }240  }241  function parseAsToken(aString, aMap) {242    var decoded = readFontDictData(aString, aMap);243    var stack = [];244    var count = decoded.length;245    for (var i = 0; i < count; i++) {246      var token = decoded[i];247      if (isNum(token)) {248        stack.push(token);249      } else {250        switch (token.operand) {251          case 'SID':252            font.set(token.name, CFFStrings[stack.pop()]);253            break;254          case 'number number':255            font.set(token.name, {256              offset: stack.pop(),257              size: stack.pop()258            });259            break;260          case 'boolean':261            font.set(token.name, stack.pop());262            break;263          case 'delta':264            font.set(token.name, stack.pop());265            break;266          default:267            if (token.operand && token.operand.length) {268              var array = [];269              for (var j = 0; j < token.operand.length; j++) {270                array.push(stack.pop());271              }272              font.set(token.name, array);273            } else {274              font.set(token.name, stack.pop());275            }276            break;277        }278      }279    }280  }281  this.parse = function type2ParserParse(aStream) {282    font.set('major', aStream.getByte());283    font.set('minor', aStream.getByte());284    font.set('hdrSize', aStream.getByte());285    font.set('offsize', aStream.getByte());286    // Read the NAME Index287    dump('Reading Index: Names');288    font.set('Names', readFontIndexData(aStream));289    dump('Names: ' + font.get('Names'));290    // Read the Top Dict Index291    dump('Reading Index: TopDict');292    var topDict = readFontIndexData(aStream, true);293    dump('TopDict: ' + topDict);294    // Read the String Index295    dump('Reading Index: Strings');296    var strings = readFontIndexData(aStream);297    dump('strings: ' + strings);298    // Fill up the Strings dictionary with the new unique strings299    var i;300    for (i = 0; i < strings.length; i++) {301      CFFStrings.push(strings[i].join(''));302    }303    // Parse the TopDict operator304    var count = topDict.length;305    for (i = 0; i < count; i++) {306      parseAsToken(topDict[i], CFFDictDataMap);307    }308    // Read the Global Subr Index that comes just after the Strings Index309    // (cf. "The Compact Font Format Specification" Chapter 16)310    dump('Reading Global Subr Index');311    var subrs = readFontIndexData(aStream, true);312    dump(subrs);313    // Reading Private Dict314    var priv = font.get('Private');315    dump('Reading Private Dict (offset: ' + priv.offset +316        ' size: ' + priv.size + ')');317    aStream.pos = priv.offset;318    var privateDict = [];319    for (i = 0; i < priv.size; i++) {320      privateDict.push(aStream.getByte());321    }322    dump('privateData:' + privateDict);323    parseAsToken(privateDict, CFFDictPrivateDataMap);324    for (var p in font.map) {325      dump(p + '::' + font.get(p));326    }327    // Read CharStrings Index328    var charStringsOffset = font.get('CharStrings');329    dump('Read CharStrings Index (offset: ' + charStringsOffset + ')');330    aStream.pos = charStringsOffset;331    var charStrings = readFontIndexData(aStream, true);332    // Read Charset333    dump('Read Charset for ' + charStrings.length + ' glyphs');334    var charsetEntry = font.get('charset');335    if (charsetEntry === 0) {336      error('Need to support CFFISOAdobeCharset');337    } else if (charsetEntry === 1) {338      error('Need to support CFFExpert');339    } else if (charsetEntry === 2) {340      error('Need to support CFFExpertSubsetCharset');341    } else {342      aStream.pos = charsetEntry;343      readCharset(aStream, charStrings);344    }345  };346};347/*348 * To try the Type2 decoder on a local file in the current directory:349 *350 *  var cff = new Type2Parser("file.cff");351 *  cff.parse(this.data);352 *353 * To try the Type2 decoder on a custom built CFF array:354 *355 *  var file = new Uint8Array(cffFileArray, 0, cffFileSize);356 *  var parser = new Type2Parser();357 *  parser.parse(new Stream(file));358 *359 */360/*361 * Write to a file to the disk (works only on Firefox in privilege mode)362 * but this is useful for dumping a font file to the disk and check with363 * fontforge or the ots program what's wrong with the file.364 *365 * writeToFile(fontData, "/tmp/pdf.js." + fontCount + ".cff");366 */367function writeToFile(aBytes, aFilePath) {368  if (!('netscape' in window)) {369    return;370  }371  netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');372  var Cc = Components.classes,373      Ci = Components.interfaces;374  var file = Cc['@mozilla.org/file/local;1'].createInstance(Ci.nsILocalFile);375  file.initWithPath(aFilePath);376  var stream = Cc['@mozilla.org/network/file-output-stream;1']377                 .createInstance(Ci.nsIFileOutputStream);378  stream.init(file, 0x04 | 0x08 | 0x20, 0x180, 0);379  var bos = Cc['@mozilla.org/binaryoutputstream;1']380              .createInstance(Ci.nsIBinaryOutputStream);381  bos.setOutputStream(stream);382  bos.writeByteArray(aBytes, aBytes.length);383  stream.close();...

Using AI Code Generation

1var text = '“”‘’…—–';2var text2 = '“”‘’…—–';3var text3 = '“”‘’…—–';4var text4 = '“”‘’…—–';5var text5 = '“”‘’…—–';6var text6 = '“”‘’…—–';7var text7 = '“”‘’…—–';8var text8 = '“”‘’…—–';9var text9 = '“”‘’…—–';10var text10 = '“”‘’…—–';11var text11 = '“”‘’…—–';12var text12 = '“”‘’…—–';13var text13 = '“”‘’…—–';14var text14 = '“”‘’…—–';15var text15 = '“”‘’…—–';16var text16 = '“”‘’…—–';17var text17 = '“”‘’…—–';18var text18 = '“”‘’…—–';19var text19 = '“”‘’…—–';20var text20 = '“”‘’…—–';21var text21 = '“”‘’…—–';22var text22 = '“”‘’…—–';23var text23 = '“”‘’…—–';24var text24 = '“”‘’…—–';25var text25 = '“”‘’…—–';26var text26 = '“”‘’…—–';27var text27 = '“”‘’…—–';28var text28 = '“”‘’…—–';29var text29 = '“”‘’…—–';30var text30 = '“”‘’…—–';31var text31 = '“”‘’…—–';32var text32 = '“”‘’…—–';33var text33 = '“”‘’…—–';34var text34 = '“”‘’…—–';35var text35 = '“”‘’…—–';36var text36 = '“”‘’…—–';37var text37 = '“”‘’…—–';38var text38 = '“”‘’…—–';

Using AI Code Generation

1var wptools = require('wptools');2var cff = wptools.cffencoding();3cff.encode('hello world');4cff.decode('68656c6c6f20776f726c64');5var wptools = require('wptools');6var cff = wptools.cffencoding();7cff.encode('hello world');8cff.decode('68656c6c6f20776f726c64');9var wptools = require('wptools');10var cff = wptools.cffencoding();11cff.encode('hello world');12cff.decode('68656c6c6f20776f726c64');13var wptools = require('wptools');14var cff = wptools.cffencoding();15cff.encode('hello world');16cff.decode('68656c6c6f20776f726c64');17var wptools = require('wptools');18var cff = wptools.cffencoding();19cff.encode('hello world');20cff.decode('68656c6c6f20776f726c64');21var wptools = require('wptools');22var cff = wptools.cffencoding();23cff.encode('hello world');24cff.decode('68656c6c6f20776f726c64');25var wptools = require('wptools');

Using AI Code Generation

1var pdf = require('wptext2pdf');2var fs = require('fs');3var pdf = new pdf();4var text = 'Hello World';5var options = {6};7pdf.addText(text, options);8pdf.writePDF('test.pdf', function(err) {9    if (err) {10        return console.log(err);11    }12    console.log('PDF saved!');13});14### new PDF()15### PDF.addText(text, options)16### PDF.writePDF(filename, callback)17MIT © [Michael Chen](

Using AI Code Generation

1var cff = require('wptexturize');2var text = 'This is a test. It is only a test.';3console.log(cff(text));4var cff = require('wptexturize');5var text = 'This is a test. It is only a test.';6console.log(cff(text, true));7var cff = require('wptexturize');8var text = 'This is a test. It is only a test.';9console.log(cff(text, false));10var cff = require('wptexturize');11var text = 'This is a test. It is only a test.';12console.log(cff(text, false, false));13var cff = require('wptexturize');14var text = 'This is a test. It is only a test.';15console.log(cff(text, false, false, true));16var cff = require('wptexturize');17var text = 'This is a test. It is only a test.';18console.log(cff(text, false, false, false, true));19var cff = require('wptexturize');20var text = 'This is a test. It is only a test.';21console.log(cff(text, false, false, false, false, true));

Using AI Code Generation

1var pdf = require('wptext2pdf');2var fs = require('fs');3var path = require('path');4var text = "Hello World";5var options = {6    pdf: {7    }8};9pdf.create(text, options).toFile('./test.pdf', function(err, res) {10    if (err) return console.log(err);11});12var pdf = require('wptext2pdf');13var fs = require('fs');14var path = require('path');15var text = "Hello World";16var options = {17    pdf: {18    }19};20pdf.create(text, options).toFile('./test.pdf', function(err, res) {21    if (err) return console.log(err);22});23var pdf = require('wptext2pdf');24var fs = require('fs');25var path = require('path');26var text = "Hello World";27var options = {28    pdf: {29    }30};31pdf.create(text, options).toFile('./test.pdf', function(err, res) {32    if (err) return console.log(err);33});34var pdf = require('wptext2pdf');35var fs = require('fs');36var path = require('path');37var text = "Hello World";38var options = {39    pdf: {40    }41};42pdf.create(text, options).toFile('./test.pdf', function(err, res) {43    if (err) return console.log(err);

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