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22 | 'use strict';
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23 |
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24 | Object.defineProperty(exports, "__esModule", {
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25 | value: true
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26 | });
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27 | exports.CFFCompiler = exports.CFFPrivateDict = exports.CFFTopDict = exports.CFFCharset = exports.CFFIndex = exports.CFFStrings = exports.CFFHeader = exports.CFF = exports.CFFParser = exports.CFFStandardStrings = undefined;
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28 |
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29 | var _util = require('../shared/util');
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30 |
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31 | var _charsets = require('./charsets');
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32 |
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33 | var _encodings = require('./encodings');
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34 |
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35 | var MAX_SUBR_NESTING = 10;
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36 | var CFFStandardStrings = ['.notdef', 'space', 'exclam', 'quotedbl', 'numbersign', 'dollar', 'percent', 'ampersand', 'quoteright', 'parenleft', 'parenright', 'asterisk', 'plus', 'comma', 'hyphen', 'period', 'slash', 'zero', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine', 'colon', 'semicolon', 'less', 'equal', 'greater', 'question', 'at', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'bracketleft', 'backslash', 'bracketright', 'asciicircum', 'underscore', 'quoteleft', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'braceleft', 'bar', 'braceright', 'asciitilde', 'exclamdown', 'cent', 'sterling', 'fraction', 'yen', 'florin', 'section', 'currency', 'quotesingle', 'quotedblleft', 'guillemotleft', 'guilsinglleft', 'guilsinglright', 'fi', 'fl', 'endash', 'dagger', 'daggerdbl', 'periodcentered', 'paragraph', 'bullet', 'quotesinglbase', 'quotedblbase', 'quotedblright', 'guillemotright', 'ellipsis', 'perthousand', 'questiondown', 'grave', 'acute', 'circumflex', 'tilde', 'macron', 'breve', 'dotaccent', 'dieresis', 'ring', 'cedilla', 'hungarumlaut', 'ogonek', 'caron', 'emdash', 'AE', 'ordfeminine', 'Lslash', 'Oslash', 'OE', 'ordmasculine', 'ae', 'dotlessi', 'lslash', 'oslash', 'oe', 'germandbls', 'onesuperior', 'logicalnot', 'mu', 'trademark', 'Eth', 'onehalf', 'plusminus', 'Thorn', 'onequarter', 'divide', 'brokenbar', 'degree', 'thorn', 'threequarters', 'twosuperior', 'registered', 'minus', 'eth', 'multiply', 'threesuperior', 'copyright', 'Aacute', 'Acircumflex', 'Adieresis', 'Agrave', 'Aring', 'Atilde', 'Ccedilla', 'Eacute', 'Ecircumflex', 'Edieresis', 'Egrave', 'Iacute', 'Icircumflex', 'Idieresis', 'Igrave', 'Ntilde', 'Oacute', 'Ocircumflex', 'Odieresis', 'Ograve', 'Otilde', 'Scaron', 'Uacute', 'Ucircumflex', 'Udieresis', 'Ugrave', 'Yacute', 'Ydieresis', 'Zcaron', 'aacute', 'acircumflex', 'adieresis', 'agrave', 'aring', 'atilde', 'ccedilla', 'eacute', 'ecircumflex', 'edieresis', 'egrave', 'iacute', 'icircumflex', 'idieresis', 'igrave', 'ntilde', 'oacute', 'ocircumflex', 'odieresis', 'ograve', 'otilde', 'scaron', 'uacute', 'ucircumflex', 'udieresis', 'ugrave', 'yacute', 'ydieresis', 'zcaron', 'exclamsmall', 'Hungarumlautsmall', 'dollaroldstyle', 'dollarsuperior', 'ampersandsmall', 'Acutesmall', 'parenleftsuperior', 'parenrightsuperior', 'twodotenleader', 'onedotenleader', 'zerooldstyle', 'oneoldstyle', 'twooldstyle', 'threeoldstyle', 'fouroldstyle', 'fiveoldstyle', 'sixoldstyle', 'sevenoldstyle', 'eightoldstyle', 'nineoldstyle', 'commasuperior', 'threequartersemdash', 'periodsuperior', 'questionsmall', 'asuperior', 'bsuperior', 'centsuperior', 'dsuperior', 'esuperior', 'isuperior', 'lsuperior', 'msuperior', 'nsuperior', 'osuperior', 'rsuperior', 'ssuperior', 'tsuperior', 'ff', 'ffi', 'ffl', 'parenleftinferior', 'parenrightinferior', 'Circumflexsmall', 'hyphensuperior', 'Gravesmall', 'Asmall', 'Bsmall', 'Csmall', 'Dsmall', 'Esmall', 'Fsmall', 'Gsmall', 'Hsmall', 'Ismall', 'Jsmall', 'Ksmall', 'Lsmall', 'Msmall', 'Nsmall', 'Osmall', 'Psmall', 'Qsmall', 'Rsmall', 'Ssmall', 'Tsmall', 'Usmall', 'Vsmall', 'Wsmall', 'Xsmall', 'Ysmall', 'Zsmall', 'colonmonetary', 'onefitted', 'rupiah', 'Tildesmall', 'exclamdownsmall', 'centoldstyle', 'Lslashsmall', 'Scaronsmall', 'Zcaronsmall', 'Dieresissmall', 'Brevesmall', 'Caronsmall', 'Dotaccentsmall', 'Macronsmall', 'figuredash', 'hypheninferior', 'Ogoneksmall', 'Ringsmall', 'Cedillasmall', 'questiondownsmall', 'oneeighth', 'threeeighths', 'fiveeighths', 'seveneighths', 'onethird', 'twothirds', 'zerosuperior', 'foursuperior', 'fivesuperior', 'sixsuperior', 'sevensuperior', 'eightsuperior', 'ninesuperior', 'zeroinferior', 'oneinferior', 'twoinferior', 'threeinferior', 'fourinferior', 'fiveinferior', 'sixinferior', 'seveninferior', 'eightinferior', 'nineinferior', 'centinferior', 'dollarinferior', 'periodinferior', 'commainferior', 'Agravesmall', 'Aacutesmall', 'Acircumflexsmall', 'Atildesmall', 'Adieresissmall', 'Aringsmall', 'AEsmall', 'Ccedillasmall', 'Egravesmall', 'Eacutesmall', 'Ecircumflexsmall', 'Edieresissmall', 'Igravesmall', 'Iacutesmall', 'Icircumflexsmall', 'Idieresissmall', 'Ethsmall', 'Ntildesmall', 'Ogravesmall', 'Oacutesmall', 'Ocircumflexsmall', 'Otildesmall', 'Odieresissmall', 'OEsmall', 'Oslashsmall', 'Ugravesmall', 'Uacutesmall', 'Ucircumflexsmall', 'Udieresissmall', 'Yacutesmall', 'Thornsmall', 'Ydieresissmall', '001.000', '001.001', '001.002', '001.003', 'Black', 'Bold', 'Book', 'Light', 'Medium', 'Regular', 'Roman', 'Semibold'];
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37 | var CFFParser = function CFFParserClosure() {
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38 | var CharstringValidationData = [null, {
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39 | id: 'hstem',
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40 | min: 2,
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41 | stackClearing: true,
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42 | stem: true
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43 | }, null, {
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44 | id: 'vstem',
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45 | min: 2,
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46 | stackClearing: true,
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47 | stem: true
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48 | }, {
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49 | id: 'vmoveto',
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50 | min: 1,
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51 | stackClearing: true
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52 | }, {
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53 | id: 'rlineto',
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54 | min: 2,
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55 | resetStack: true
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56 | }, {
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57 | id: 'hlineto',
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58 | min: 1,
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59 | resetStack: true
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60 | }, {
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61 | id: 'vlineto',
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62 | min: 1,
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63 | resetStack: true
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64 | }, {
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65 | id: 'rrcurveto',
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66 | min: 6,
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67 | resetStack: true
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68 | }, null, {
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69 | id: 'callsubr',
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70 | min: 1,
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71 | undefStack: true
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72 | }, {
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73 | id: 'return',
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74 | min: 0,
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75 | undefStack: true
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76 | }, null, null, {
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77 | id: 'endchar',
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78 | min: 0,
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79 | stackClearing: true
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80 | }, null, null, null, {
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81 | id: 'hstemhm',
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82 | min: 2,
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83 | stackClearing: true,
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84 | stem: true
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85 | }, {
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86 | id: 'hintmask',
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87 | min: 0,
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88 | stackClearing: true
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89 | }, {
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90 | id: 'cntrmask',
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91 | min: 0,
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92 | stackClearing: true
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93 | }, {
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94 | id: 'rmoveto',
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95 | min: 2,
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96 | stackClearing: true
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97 | }, {
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98 | id: 'hmoveto',
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99 | min: 1,
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100 | stackClearing: true
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101 | }, {
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102 | id: 'vstemhm',
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103 | min: 2,
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104 | stackClearing: true,
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105 | stem: true
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106 | }, {
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107 | id: 'rcurveline',
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108 | min: 8,
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109 | resetStack: true
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110 | }, {
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111 | id: 'rlinecurve',
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112 | min: 8,
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113 | resetStack: true
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114 | }, {
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115 | id: 'vvcurveto',
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116 | min: 4,
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117 | resetStack: true
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118 | }, {
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119 | id: 'hhcurveto',
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120 | min: 4,
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121 | resetStack: true
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122 | }, null, {
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123 | id: 'callgsubr',
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124 | min: 1,
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125 | undefStack: true
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126 | }, {
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127 | id: 'vhcurveto',
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128 | min: 4,
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129 | resetStack: true
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130 | }, {
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131 | id: 'hvcurveto',
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132 | min: 4,
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133 | resetStack: true
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134 | }];
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135 | var CharstringValidationData12 = [null, null, null, {
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136 | id: 'and',
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137 | min: 2,
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138 | stackDelta: -1
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139 | }, {
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140 | id: 'or',
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141 | min: 2,
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142 | stackDelta: -1
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143 | }, {
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144 | id: 'not',
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145 | min: 1,
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146 | stackDelta: 0
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147 | }, null, null, null, {
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148 | id: 'abs',
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149 | min: 1,
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150 | stackDelta: 0
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151 | }, {
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152 | id: 'add',
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153 | min: 2,
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154 | stackDelta: -1,
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155 | stackFn: function stack_div(stack, index) {
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156 | stack[index - 2] = stack[index - 2] + stack[index - 1];
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157 | }
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158 | }, {
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159 | id: 'sub',
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160 | min: 2,
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161 | stackDelta: -1,
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162 | stackFn: function stack_div(stack, index) {
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163 | stack[index - 2] = stack[index - 2] - stack[index - 1];
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164 | }
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165 | }, {
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166 | id: 'div',
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167 | min: 2,
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168 | stackDelta: -1,
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169 | stackFn: function stack_div(stack, index) {
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170 | stack[index - 2] = stack[index - 2] / stack[index - 1];
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171 | }
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172 | }, null, {
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173 | id: 'neg',
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174 | min: 1,
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175 | stackDelta: 0,
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176 | stackFn: function stack_div(stack, index) {
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177 | stack[index - 1] = -stack[index - 1];
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178 | }
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179 | }, {
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180 | id: 'eq',
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181 | min: 2,
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182 | stackDelta: -1
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183 | }, null, null, {
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184 | id: 'drop',
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185 | min: 1,
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186 | stackDelta: -1
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187 | }, null, {
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188 | id: 'put',
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189 | min: 2,
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190 | stackDelta: -2
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191 | }, {
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192 | id: 'get',
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193 | min: 1,
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194 | stackDelta: 0
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195 | }, {
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196 | id: 'ifelse',
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197 | min: 4,
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198 | stackDelta: -3
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199 | }, {
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200 | id: 'random',
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201 | min: 0,
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202 | stackDelta: 1
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203 | }, {
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204 | id: 'mul',
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205 | min: 2,
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206 | stackDelta: -1,
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207 | stackFn: function stack_div(stack, index) {
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208 | stack[index - 2] = stack[index - 2] * stack[index - 1];
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209 | }
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210 | }, null, {
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211 | id: 'sqrt',
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212 | min: 1,
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213 | stackDelta: 0
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214 | }, {
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215 | id: 'dup',
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216 | min: 1,
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217 | stackDelta: 1
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218 | }, {
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219 | id: 'exch',
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220 | min: 2,
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221 | stackDelta: 0
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222 | }, {
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223 | id: 'index',
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224 | min: 2,
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225 | stackDelta: 0
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226 | }, {
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227 | id: 'roll',
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228 | min: 3,
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229 | stackDelta: -2
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230 | }, null, null, null, {
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231 | id: 'hflex',
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232 | min: 7,
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233 | resetStack: true
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234 | }, {
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235 | id: 'flex',
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236 | min: 13,
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237 | resetStack: true
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238 | }, {
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239 | id: 'hflex1',
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240 | min: 9,
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241 | resetStack: true
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242 | }, {
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243 | id: 'flex1',
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244 | min: 11,
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245 | resetStack: true
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246 | }];
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247 | function CFFParser(file, properties, seacAnalysisEnabled) {
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248 | this.bytes = file.getBytes();
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249 | this.properties = properties;
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250 | this.seacAnalysisEnabled = !!seacAnalysisEnabled;
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251 | }
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252 | CFFParser.prototype = {
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253 | parse: function CFFParser_parse() {
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254 | var properties = this.properties;
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255 | var cff = new CFF();
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256 | this.cff = cff;
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257 | var header = this.parseHeader();
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258 | var nameIndex = this.parseIndex(header.endPos);
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259 | var topDictIndex = this.parseIndex(nameIndex.endPos);
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260 | var stringIndex = this.parseIndex(topDictIndex.endPos);
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261 | var globalSubrIndex = this.parseIndex(stringIndex.endPos);
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262 | var topDictParsed = this.parseDict(topDictIndex.obj.get(0));
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263 | var topDict = this.createDict(CFFTopDict, topDictParsed, cff.strings);
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264 | cff.header = header.obj;
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265 | cff.names = this.parseNameIndex(nameIndex.obj);
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266 | cff.strings = this.parseStringIndex(stringIndex.obj);
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267 | cff.topDict = topDict;
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268 | cff.globalSubrIndex = globalSubrIndex.obj;
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269 | this.parsePrivateDict(cff.topDict);
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270 | cff.isCIDFont = topDict.hasName('ROS');
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271 | var charStringOffset = topDict.getByName('CharStrings');
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272 | var charStringIndex = this.parseIndex(charStringOffset).obj;
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273 | var fontMatrix = topDict.getByName('FontMatrix');
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274 | if (fontMatrix) {
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275 | properties.fontMatrix = fontMatrix;
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276 | }
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277 | var fontBBox = topDict.getByName('FontBBox');
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278 | if (fontBBox) {
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279 | properties.ascent = Math.max(fontBBox[3], fontBBox[1]);
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280 | properties.descent = Math.min(fontBBox[1], fontBBox[3]);
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281 | properties.ascentScaled = true;
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282 | }
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283 | var charset, encoding;
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284 | if (cff.isCIDFont) {
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285 | var fdArrayIndex = this.parseIndex(topDict.getByName('FDArray')).obj;
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286 | for (var i = 0, ii = fdArrayIndex.count; i < ii; ++i) {
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287 | var dictRaw = fdArrayIndex.get(i);
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288 | var fontDict = this.createDict(CFFTopDict, this.parseDict(dictRaw), cff.strings);
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289 | this.parsePrivateDict(fontDict);
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290 | cff.fdArray.push(fontDict);
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291 | }
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292 | encoding = null;
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293 | charset = this.parseCharsets(topDict.getByName('charset'), charStringIndex.count, cff.strings, true);
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294 | cff.fdSelect = this.parseFDSelect(topDict.getByName('FDSelect'), charStringIndex.count);
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295 | } else {
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296 | charset = this.parseCharsets(topDict.getByName('charset'), charStringIndex.count, cff.strings, false);
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297 | encoding = this.parseEncoding(topDict.getByName('Encoding'), properties, cff.strings, charset.charset);
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298 | }
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299 | cff.charset = charset;
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300 | cff.encoding = encoding;
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301 | var charStringsAndSeacs = this.parseCharStrings({
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302 | charStrings: charStringIndex,
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303 | localSubrIndex: topDict.privateDict.subrsIndex,
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304 | globalSubrIndex: globalSubrIndex.obj,
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305 | fdSelect: cff.fdSelect,
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306 | fdArray: cff.fdArray,
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307 | privateDict: topDict.privateDict
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308 | });
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309 | cff.charStrings = charStringsAndSeacs.charStrings;
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310 | cff.seacs = charStringsAndSeacs.seacs;
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311 | cff.widths = charStringsAndSeacs.widths;
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312 | return cff;
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313 | },
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314 | parseHeader: function CFFParser_parseHeader() {
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315 | var bytes = this.bytes;
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316 | var bytesLength = bytes.length;
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317 | var offset = 0;
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318 | while (offset < bytesLength && bytes[offset] !== 1) {
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319 | ++offset;
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320 | }
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321 | if (offset >= bytesLength) {
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322 | throw new _util.FormatError('Invalid CFF header');
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323 | }
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324 | if (offset !== 0) {
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325 | (0, _util.info)('cff data is shifted');
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326 | bytes = bytes.subarray(offset);
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327 | this.bytes = bytes;
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328 | }
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329 | var major = bytes[0];
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330 | var minor = bytes[1];
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331 | var hdrSize = bytes[2];
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332 | var offSize = bytes[3];
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333 | var header = new CFFHeader(major, minor, hdrSize, offSize);
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334 | return {
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335 | obj: header,
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336 | endPos: hdrSize
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337 | };
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338 | },
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339 | parseDict: function CFFParser_parseDict(dict) {
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340 | var pos = 0;
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341 | function parseOperand() {
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342 | var value = dict[pos++];
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343 | if (value === 30) {
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344 | return parseFloatOperand();
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345 | } else if (value === 28) {
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346 | value = dict[pos++];
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347 | value = (value << 24 | dict[pos++] << 16) >> 16;
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348 | return value;
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349 | } else if (value === 29) {
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350 | value = dict[pos++];
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351 | value = value << 8 | dict[pos++];
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352 | value = value << 8 | dict[pos++];
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353 | value = value << 8 | dict[pos++];
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354 | return value;
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355 | } else if (value >= 32 && value <= 246) {
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356 | return value - 139;
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357 | } else if (value >= 247 && value <= 250) {
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358 | return (value - 247) * 256 + dict[pos++] + 108;
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359 | } else if (value >= 251 && value <= 254) {
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360 | return -((value - 251) * 256) - dict[pos++] - 108;
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361 | }
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362 | (0, _util.warn)('CFFParser_parseDict: "' + value + '" is a reserved command.');
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363 | return NaN;
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364 | }
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365 | function parseFloatOperand() {
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366 | var str = '';
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367 | var eof = 15;
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368 | var lookup = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '.', 'E', 'E-', null, '-'];
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369 | var length = dict.length;
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370 | while (pos < length) {
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371 | var b = dict[pos++];
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372 | var b1 = b >> 4;
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373 | var b2 = b & 15;
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374 | if (b1 === eof) {
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375 | break;
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376 | }
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377 | str += lookup[b1];
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378 | if (b2 === eof) {
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379 | break;
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380 | }
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381 | str += lookup[b2];
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382 | }
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383 | return parseFloat(str);
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384 | }
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385 | var operands = [];
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386 | var entries = [];
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387 | pos = 0;
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388 | var end = dict.length;
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389 | while (pos < end) {
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390 | var b = dict[pos];
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391 | if (b <= 21) {
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392 | if (b === 12) {
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393 | b = b << 8 | dict[++pos];
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394 | }
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395 | entries.push([b, operands]);
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396 | operands = [];
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397 | ++pos;
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398 | } else {
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399 | operands.push(parseOperand());
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400 | }
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401 | }
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402 | return entries;
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403 | },
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404 | parseIndex: function CFFParser_parseIndex(pos) {
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405 | var cffIndex = new CFFIndex();
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406 | var bytes = this.bytes;
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407 | var count = bytes[pos++] << 8 | bytes[pos++];
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408 | var offsets = [];
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409 | var end = pos;
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410 | var i, ii;
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411 | if (count !== 0) {
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412 | var offsetSize = bytes[pos++];
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413 | var startPos = pos + (count + 1) * offsetSize - 1;
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414 | for (i = 0, ii = count + 1; i < ii; ++i) {
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415 | var offset = 0;
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416 | for (var j = 0; j < offsetSize; ++j) {
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417 | offset <<= 8;
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418 | offset += bytes[pos++];
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419 | }
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420 | offsets.push(startPos + offset);
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421 | }
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422 | end = offsets[count];
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423 | }
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424 | for (i = 0, ii = offsets.length - 1; i < ii; ++i) {
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425 | var offsetStart = offsets[i];
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426 | var offsetEnd = offsets[i + 1];
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427 | cffIndex.add(bytes.subarray(offsetStart, offsetEnd));
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428 | }
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429 | return {
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430 | obj: cffIndex,
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431 | endPos: end
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432 | };
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433 | },
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434 | parseNameIndex: function CFFParser_parseNameIndex(index) {
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435 | var names = [];
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436 | for (var i = 0, ii = index.count; i < ii; ++i) {
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437 | var name = index.get(i);
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438 | names.push((0, _util.bytesToString)(name));
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439 | }
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440 | return names;
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441 | },
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442 | parseStringIndex: function CFFParser_parseStringIndex(index) {
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443 | var strings = new CFFStrings();
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444 | for (var i = 0, ii = index.count; i < ii; ++i) {
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445 | var data = index.get(i);
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446 | strings.add((0, _util.bytesToString)(data));
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447 | }
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448 | return strings;
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449 | },
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450 | createDict: function CFFParser_createDict(Type, dict, strings) {
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451 | var cffDict = new Type(strings);
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452 | for (var i = 0, ii = dict.length; i < ii; ++i) {
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453 | var pair = dict[i];
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454 | var key = pair[0];
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455 | var value = pair[1];
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456 | cffDict.setByKey(key, value);
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457 | }
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458 | return cffDict;
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459 | },
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460 | parseCharString: function CFFParser_parseCharString(state, data, localSubrIndex, globalSubrIndex) {
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461 | if (!data || state.callDepth > MAX_SUBR_NESTING) {
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462 | return false;
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463 | }
|
464 | var stackSize = state.stackSize;
|
465 | var stack = state.stack;
|
466 | var length = data.length;
|
467 | for (var j = 0; j < length;) {
|
468 | var value = data[j++];
|
469 | var validationCommand = null;
|
470 | if (value === 12) {
|
471 | var q = data[j++];
|
472 | if (q === 0) {
|
473 | data[j - 2] = 139;
|
474 | data[j - 1] = 22;
|
475 | stackSize = 0;
|
476 | } else {
|
477 | validationCommand = CharstringValidationData12[q];
|
478 | }
|
479 | } else if (value === 28) {
|
480 | stack[stackSize] = (data[j] << 24 | data[j + 1] << 16) >> 16;
|
481 | j += 2;
|
482 | stackSize++;
|
483 | } else if (value === 14) {
|
484 | if (stackSize >= 4) {
|
485 | stackSize -= 4;
|
486 | if (this.seacAnalysisEnabled) {
|
487 | state.seac = stack.slice(stackSize, stackSize + 4);
|
488 | return false;
|
489 | }
|
490 | }
|
491 | validationCommand = CharstringValidationData[value];
|
492 | } else if (value >= 32 && value <= 246) {
|
493 | stack[stackSize] = value - 139;
|
494 | stackSize++;
|
495 | } else if (value >= 247 && value <= 254) {
|
496 | stack[stackSize] = value < 251 ? (value - 247 << 8) + data[j] + 108 : -(value - 251 << 8) - data[j] - 108;
|
497 | j++;
|
498 | stackSize++;
|
499 | } else if (value === 255) {
|
500 | stack[stackSize] = (data[j] << 24 | data[j + 1] << 16 | data[j + 2] << 8 | data[j + 3]) / 65536;
|
501 | j += 4;
|
502 | stackSize++;
|
503 | } else if (value === 19 || value === 20) {
|
504 | state.hints += stackSize >> 1;
|
505 | j += state.hints + 7 >> 3;
|
506 | stackSize %= 2;
|
507 | validationCommand = CharstringValidationData[value];
|
508 | } else if (value === 10 || value === 29) {
|
509 | var subrsIndex;
|
510 | if (value === 10) {
|
511 | subrsIndex = localSubrIndex;
|
512 | } else {
|
513 | subrsIndex = globalSubrIndex;
|
514 | }
|
515 | if (!subrsIndex) {
|
516 | validationCommand = CharstringValidationData[value];
|
517 | (0, _util.warn)('Missing subrsIndex for ' + validationCommand.id);
|
518 | return false;
|
519 | }
|
520 | var bias = 32768;
|
521 | if (subrsIndex.count < 1240) {
|
522 | bias = 107;
|
523 | } else if (subrsIndex.count < 33900) {
|
524 | bias = 1131;
|
525 | }
|
526 | var subrNumber = stack[--stackSize] + bias;
|
527 | if (subrNumber < 0 || subrNumber >= subrsIndex.count || isNaN(subrNumber)) {
|
528 | validationCommand = CharstringValidationData[value];
|
529 | (0, _util.warn)('Out of bounds subrIndex for ' + validationCommand.id);
|
530 | return false;
|
531 | }
|
532 | state.stackSize = stackSize;
|
533 | state.callDepth++;
|
534 | var valid = this.parseCharString(state, subrsIndex.get(subrNumber), localSubrIndex, globalSubrIndex);
|
535 | if (!valid) {
|
536 | return false;
|
537 | }
|
538 | state.callDepth--;
|
539 | stackSize = state.stackSize;
|
540 | continue;
|
541 | } else if (value === 11) {
|
542 | state.stackSize = stackSize;
|
543 | return true;
|
544 | } else {
|
545 | validationCommand = CharstringValidationData[value];
|
546 | }
|
547 | if (validationCommand) {
|
548 | if (validationCommand.stem) {
|
549 | state.hints += stackSize >> 1;
|
550 | }
|
551 | if ('min' in validationCommand) {
|
552 | if (!state.undefStack && stackSize < validationCommand.min) {
|
553 | (0, _util.warn)('Not enough parameters for ' + validationCommand.id + '; actual: ' + stackSize + ', expected: ' + validationCommand.min);
|
554 | return false;
|
555 | }
|
556 | }
|
557 | if (state.firstStackClearing && validationCommand.stackClearing) {
|
558 | state.firstStackClearing = false;
|
559 | stackSize -= validationCommand.min;
|
560 | if (stackSize >= 2 && validationCommand.stem) {
|
561 | stackSize %= 2;
|
562 | } else if (stackSize > 1) {
|
563 | (0, _util.warn)('Found too many parameters for stack-clearing command');
|
564 | }
|
565 | if (stackSize > 0 && stack[stackSize - 1] >= 0) {
|
566 | state.width = stack[stackSize - 1];
|
567 | }
|
568 | }
|
569 | if ('stackDelta' in validationCommand) {
|
570 | if ('stackFn' in validationCommand) {
|
571 | validationCommand.stackFn(stack, stackSize);
|
572 | }
|
573 | stackSize += validationCommand.stackDelta;
|
574 | } else if (validationCommand.stackClearing) {
|
575 | stackSize = 0;
|
576 | } else if (validationCommand.resetStack) {
|
577 | stackSize = 0;
|
578 | state.undefStack = false;
|
579 | } else if (validationCommand.undefStack) {
|
580 | stackSize = 0;
|
581 | state.undefStack = true;
|
582 | state.firstStackClearing = false;
|
583 | }
|
584 | }
|
585 | }
|
586 | state.stackSize = stackSize;
|
587 | return true;
|
588 | },
|
589 | parseCharStrings: function parseCharStrings(_ref) {
|
590 | var charStrings = _ref.charStrings,
|
591 | localSubrIndex = _ref.localSubrIndex,
|
592 | globalSubrIndex = _ref.globalSubrIndex,
|
593 | fdSelect = _ref.fdSelect,
|
594 | fdArray = _ref.fdArray,
|
595 | privateDict = _ref.privateDict;
|
596 |
|
597 | var seacs = [];
|
598 | var widths = [];
|
599 | var count = charStrings.count;
|
600 | for (var i = 0; i < count; i++) {
|
601 | var charstring = charStrings.get(i);
|
602 | var state = {
|
603 | callDepth: 0,
|
604 | stackSize: 0,
|
605 | stack: [],
|
606 | undefStack: true,
|
607 | hints: 0,
|
608 | firstStackClearing: true,
|
609 | seac: null,
|
610 | width: null
|
611 | };
|
612 | var valid = true;
|
613 | var localSubrToUse = null;
|
614 | var privateDictToUse = privateDict;
|
615 | if (fdSelect && fdArray.length) {
|
616 | var fdIndex = fdSelect.getFDIndex(i);
|
617 | if (fdIndex === -1) {
|
618 | (0, _util.warn)('Glyph index is not in fd select.');
|
619 | valid = false;
|
620 | }
|
621 | if (fdIndex >= fdArray.length) {
|
622 | (0, _util.warn)('Invalid fd index for glyph index.');
|
623 | valid = false;
|
624 | }
|
625 | if (valid) {
|
626 | privateDictToUse = fdArray[fdIndex].privateDict;
|
627 | localSubrToUse = privateDictToUse.subrsIndex;
|
628 | }
|
629 | } else if (localSubrIndex) {
|
630 | localSubrToUse = localSubrIndex;
|
631 | }
|
632 | if (valid) {
|
633 | valid = this.parseCharString(state, charstring, localSubrToUse, globalSubrIndex);
|
634 | }
|
635 | if (state.width !== null) {
|
636 | var nominalWidth = privateDictToUse.getByName('nominalWidthX');
|
637 | widths[i] = nominalWidth + state.width;
|
638 | } else {
|
639 | var defaultWidth = privateDictToUse.getByName('defaultWidthX');
|
640 | widths[i] = defaultWidth;
|
641 | }
|
642 | if (state.seac !== null) {
|
643 | seacs[i] = state.seac;
|
644 | }
|
645 | if (!valid) {
|
646 | charStrings.set(i, new Uint8Array([14]));
|
647 | }
|
648 | }
|
649 | return {
|
650 | charStrings: charStrings,
|
651 | seacs: seacs,
|
652 | widths: widths
|
653 | };
|
654 | },
|
655 |
|
656 | emptyPrivateDictionary: function CFFParser_emptyPrivateDictionary(parentDict) {
|
657 | var privateDict = this.createDict(CFFPrivateDict, [], parentDict.strings);
|
658 | parentDict.setByKey(18, [0, 0]);
|
659 | parentDict.privateDict = privateDict;
|
660 | },
|
661 | parsePrivateDict: function CFFParser_parsePrivateDict(parentDict) {
|
662 | if (!parentDict.hasName('Private')) {
|
663 | this.emptyPrivateDictionary(parentDict);
|
664 | return;
|
665 | }
|
666 | var privateOffset = parentDict.getByName('Private');
|
667 | if (!Array.isArray(privateOffset) || privateOffset.length !== 2) {
|
668 | parentDict.removeByName('Private');
|
669 | return;
|
670 | }
|
671 | var size = privateOffset[0];
|
672 | var offset = privateOffset[1];
|
673 | if (size === 0 || offset >= this.bytes.length) {
|
674 | this.emptyPrivateDictionary(parentDict);
|
675 | return;
|
676 | }
|
677 | var privateDictEnd = offset + size;
|
678 | var dictData = this.bytes.subarray(offset, privateDictEnd);
|
679 | var dict = this.parseDict(dictData);
|
680 | var privateDict = this.createDict(CFFPrivateDict, dict, parentDict.strings);
|
681 | parentDict.privateDict = privateDict;
|
682 | if (!privateDict.getByName('Subrs')) {
|
683 | return;
|
684 | }
|
685 | var subrsOffset = privateDict.getByName('Subrs');
|
686 | var relativeOffset = offset + subrsOffset;
|
687 | if (subrsOffset === 0 || relativeOffset >= this.bytes.length) {
|
688 | this.emptyPrivateDictionary(parentDict);
|
689 | return;
|
690 | }
|
691 | var subrsIndex = this.parseIndex(relativeOffset);
|
692 | privateDict.subrsIndex = subrsIndex.obj;
|
693 | },
|
694 | parseCharsets: function CFFParser_parseCharsets(pos, length, strings, cid) {
|
695 | if (pos === 0) {
|
696 | return new CFFCharset(true, CFFCharsetPredefinedTypes.ISO_ADOBE, _charsets.ISOAdobeCharset);
|
697 | } else if (pos === 1) {
|
698 | return new CFFCharset(true, CFFCharsetPredefinedTypes.EXPERT, _charsets.ExpertCharset);
|
699 | } else if (pos === 2) {
|
700 | return new CFFCharset(true, CFFCharsetPredefinedTypes.EXPERT_SUBSET, _charsets.ExpertSubsetCharset);
|
701 | }
|
702 | var bytes = this.bytes;
|
703 | var start = pos;
|
704 | var format = bytes[pos++];
|
705 | var charset = ['.notdef'];
|
706 | var id, count, i;
|
707 | length -= 1;
|
708 | switch (format) {
|
709 | case 0:
|
710 | for (i = 0; i < length; i++) {
|
711 | id = bytes[pos++] << 8 | bytes[pos++];
|
712 | charset.push(cid ? id : strings.get(id));
|
713 | }
|
714 | break;
|
715 | case 1:
|
716 | while (charset.length <= length) {
|
717 | id = bytes[pos++] << 8 | bytes[pos++];
|
718 | count = bytes[pos++];
|
719 | for (i = 0; i <= count; i++) {
|
720 | charset.push(cid ? id++ : strings.get(id++));
|
721 | }
|
722 | }
|
723 | break;
|
724 | case 2:
|
725 | while (charset.length <= length) {
|
726 | id = bytes[pos++] << 8 | bytes[pos++];
|
727 | count = bytes[pos++] << 8 | bytes[pos++];
|
728 | for (i = 0; i <= count; i++) {
|
729 | charset.push(cid ? id++ : strings.get(id++));
|
730 | }
|
731 | }
|
732 | break;
|
733 | default:
|
734 | throw new _util.FormatError('Unknown charset format');
|
735 | }
|
736 | var end = pos;
|
737 | var raw = bytes.subarray(start, end);
|
738 | return new CFFCharset(false, format, charset, raw);
|
739 | },
|
740 | parseEncoding: function CFFParser_parseEncoding(pos, properties, strings, charset) {
|
741 | var encoding = Object.create(null);
|
742 | var bytes = this.bytes;
|
743 | var predefined = false;
|
744 | var format, i, ii;
|
745 | var raw = null;
|
746 | function readSupplement() {
|
747 | var supplementsCount = bytes[pos++];
|
748 | for (i = 0; i < supplementsCount; i++) {
|
749 | var code = bytes[pos++];
|
750 | var sid = (bytes[pos++] << 8) + (bytes[pos++] & 0xff);
|
751 | encoding[code] = charset.indexOf(strings.get(sid));
|
752 | }
|
753 | }
|
754 | if (pos === 0 || pos === 1) {
|
755 | predefined = true;
|
756 | format = pos;
|
757 | var baseEncoding = pos ? _encodings.ExpertEncoding : _encodings.StandardEncoding;
|
758 | for (i = 0, ii = charset.length; i < ii; i++) {
|
759 | var index = baseEncoding.indexOf(charset[i]);
|
760 | if (index !== -1) {
|
761 | encoding[index] = i;
|
762 | }
|
763 | }
|
764 | } else {
|
765 | var dataStart = pos;
|
766 | format = bytes[pos++];
|
767 | switch (format & 0x7f) {
|
768 | case 0:
|
769 | var glyphsCount = bytes[pos++];
|
770 | for (i = 1; i <= glyphsCount; i++) {
|
771 | encoding[bytes[pos++]] = i;
|
772 | }
|
773 | break;
|
774 | case 1:
|
775 | var rangesCount = bytes[pos++];
|
776 | var gid = 1;
|
777 | for (i = 0; i < rangesCount; i++) {
|
778 | var start = bytes[pos++];
|
779 | var left = bytes[pos++];
|
780 | for (var j = start; j <= start + left; j++) {
|
781 | encoding[j] = gid++;
|
782 | }
|
783 | }
|
784 | break;
|
785 | default:
|
786 | throw new _util.FormatError('Unknown encoding format: ' + format + ' in CFF');
|
787 | }
|
788 | var dataEnd = pos;
|
789 | if (format & 0x80) {
|
790 | bytes[dataStart] &= 0x7f;
|
791 | readSupplement();
|
792 | }
|
793 | raw = bytes.subarray(dataStart, dataEnd);
|
794 | }
|
795 | format = format & 0x7f;
|
796 | return new CFFEncoding(predefined, format, encoding, raw);
|
797 | },
|
798 | parseFDSelect: function CFFParser_parseFDSelect(pos, length) {
|
799 | var start = pos;
|
800 | var bytes = this.bytes;
|
801 | var format = bytes[pos++];
|
802 | var fdSelect = [],
|
803 | rawBytes;
|
804 | var i,
|
805 | invalidFirstGID = false;
|
806 | switch (format) {
|
807 | case 0:
|
808 | for (i = 0; i < length; ++i) {
|
809 | var id = bytes[pos++];
|
810 | fdSelect.push(id);
|
811 | }
|
812 | rawBytes = bytes.subarray(start, pos);
|
813 | break;
|
814 | case 3:
|
815 | var rangesCount = bytes[pos++] << 8 | bytes[pos++];
|
816 | for (i = 0; i < rangesCount; ++i) {
|
817 | var first = bytes[pos++] << 8 | bytes[pos++];
|
818 | if (i === 0 && first !== 0) {
|
819 | (0, _util.warn)('parseFDSelect: The first range must have a first GID of 0' + ' -- trying to recover.');
|
820 | invalidFirstGID = true;
|
821 | first = 0;
|
822 | }
|
823 | var fdIndex = bytes[pos++];
|
824 | var next = bytes[pos] << 8 | bytes[pos + 1];
|
825 | for (var j = first; j < next; ++j) {
|
826 | fdSelect.push(fdIndex);
|
827 | }
|
828 | }
|
829 | pos += 2;
|
830 | rawBytes = bytes.subarray(start, pos);
|
831 | if (invalidFirstGID) {
|
832 | rawBytes[3] = rawBytes[4] = 0;
|
833 | }
|
834 | break;
|
835 | default:
|
836 | throw new _util.FormatError('parseFDSelect: Unknown format "' + format + '".');
|
837 | }
|
838 | if (fdSelect.length !== length) {
|
839 | throw new _util.FormatError('parseFDSelect: Invalid font data.');
|
840 | }
|
841 | return new CFFFDSelect(fdSelect, rawBytes);
|
842 | }
|
843 | };
|
844 | return CFFParser;
|
845 | }();
|
846 | var CFF = function CFFClosure() {
|
847 | function CFF() {
|
848 | this.header = null;
|
849 | this.names = [];
|
850 | this.topDict = null;
|
851 | this.strings = new CFFStrings();
|
852 | this.globalSubrIndex = null;
|
853 | this.encoding = null;
|
854 | this.charset = null;
|
855 | this.charStrings = null;
|
856 | this.fdArray = [];
|
857 | this.fdSelect = null;
|
858 | this.isCIDFont = false;
|
859 | }
|
860 | return CFF;
|
861 | }();
|
862 | var CFFHeader = function CFFHeaderClosure() {
|
863 | function CFFHeader(major, minor, hdrSize, offSize) {
|
864 | this.major = major;
|
865 | this.minor = minor;
|
866 | this.hdrSize = hdrSize;
|
867 | this.offSize = offSize;
|
868 | }
|
869 | return CFFHeader;
|
870 | }();
|
871 | var CFFStrings = function CFFStringsClosure() {
|
872 | function CFFStrings() {
|
873 | this.strings = [];
|
874 | }
|
875 | CFFStrings.prototype = {
|
876 | get: function CFFStrings_get(index) {
|
877 | if (index >= 0 && index <= 390) {
|
878 | return CFFStandardStrings[index];
|
879 | }
|
880 | if (index - 391 <= this.strings.length) {
|
881 | return this.strings[index - 391];
|
882 | }
|
883 | return CFFStandardStrings[0];
|
884 | },
|
885 | add: function CFFStrings_add(value) {
|
886 | this.strings.push(value);
|
887 | },
|
888 | get count() {
|
889 | return this.strings.length;
|
890 | }
|
891 | };
|
892 | return CFFStrings;
|
893 | }();
|
894 | var CFFIndex = function CFFIndexClosure() {
|
895 | function CFFIndex() {
|
896 | this.objects = [];
|
897 | this.length = 0;
|
898 | }
|
899 | CFFIndex.prototype = {
|
900 | add: function CFFIndex_add(data) {
|
901 | this.length += data.length;
|
902 | this.objects.push(data);
|
903 | },
|
904 | set: function CFFIndex_set(index, data) {
|
905 | this.length += data.length - this.objects[index].length;
|
906 | this.objects[index] = data;
|
907 | },
|
908 | get: function CFFIndex_get(index) {
|
909 | return this.objects[index];
|
910 | },
|
911 | get count() {
|
912 | return this.objects.length;
|
913 | }
|
914 | };
|
915 | return CFFIndex;
|
916 | }();
|
917 | var CFFDict = function CFFDictClosure() {
|
918 | function CFFDict(tables, strings) {
|
919 | this.keyToNameMap = tables.keyToNameMap;
|
920 | this.nameToKeyMap = tables.nameToKeyMap;
|
921 | this.defaults = tables.defaults;
|
922 | this.types = tables.types;
|
923 | this.opcodes = tables.opcodes;
|
924 | this.order = tables.order;
|
925 | this.strings = strings;
|
926 | this.values = Object.create(null);
|
927 | }
|
928 | CFFDict.prototype = {
|
929 | setByKey: function CFFDict_setByKey(key, value) {
|
930 | if (!(key in this.keyToNameMap)) {
|
931 | return false;
|
932 | }
|
933 | var valueLength = value.length;
|
934 | if (valueLength === 0) {
|
935 | return true;
|
936 | }
|
937 | for (var i = 0; i < valueLength; i++) {
|
938 | if (isNaN(value[i])) {
|
939 | (0, _util.warn)('Invalid CFFDict value: "' + value + '" for key "' + key + '".');
|
940 | return true;
|
941 | }
|
942 | }
|
943 | var type = this.types[key];
|
944 | if (type === 'num' || type === 'sid' || type === 'offset') {
|
945 | value = value[0];
|
946 | }
|
947 | this.values[key] = value;
|
948 | return true;
|
949 | },
|
950 | setByName: function CFFDict_setByName(name, value) {
|
951 | if (!(name in this.nameToKeyMap)) {
|
952 | throw new _util.FormatError('Invalid dictionary name "' + name + '"');
|
953 | }
|
954 | this.values[this.nameToKeyMap[name]] = value;
|
955 | },
|
956 | hasName: function CFFDict_hasName(name) {
|
957 | return this.nameToKeyMap[name] in this.values;
|
958 | },
|
959 | getByName: function CFFDict_getByName(name) {
|
960 | if (!(name in this.nameToKeyMap)) {
|
961 | throw new _util.FormatError('Invalid dictionary name ' + name + '"');
|
962 | }
|
963 | var key = this.nameToKeyMap[name];
|
964 | if (!(key in this.values)) {
|
965 | return this.defaults[key];
|
966 | }
|
967 | return this.values[key];
|
968 | },
|
969 | removeByName: function CFFDict_removeByName(name) {
|
970 | delete this.values[this.nameToKeyMap[name]];
|
971 | }
|
972 | };
|
973 | CFFDict.createTables = function CFFDict_createTables(layout) {
|
974 | var tables = {
|
975 | keyToNameMap: {},
|
976 | nameToKeyMap: {},
|
977 | defaults: {},
|
978 | types: {},
|
979 | opcodes: {},
|
980 | order: []
|
981 | };
|
982 | for (var i = 0, ii = layout.length; i < ii; ++i) {
|
983 | var entry = layout[i];
|
984 | var key = Array.isArray(entry[0]) ? (entry[0][0] << 8) + entry[0][1] : entry[0];
|
985 | tables.keyToNameMap[key] = entry[1];
|
986 | tables.nameToKeyMap[entry[1]] = key;
|
987 | tables.types[key] = entry[2];
|
988 | tables.defaults[key] = entry[3];
|
989 | tables.opcodes[key] = Array.isArray(entry[0]) ? entry[0] : [entry[0]];
|
990 | tables.order.push(key);
|
991 | }
|
992 | return tables;
|
993 | };
|
994 | return CFFDict;
|
995 | }();
|
996 | var CFFTopDict = function CFFTopDictClosure() {
|
997 | var layout = [[[12, 30], 'ROS', ['sid', 'sid', 'num'], null], [[12, 20], 'SyntheticBase', 'num', null], [0, 'version', 'sid', null], [1, 'Notice', 'sid', null], [[12, 0], 'Copyright', 'sid', null], [2, 'FullName', 'sid', null], [3, 'FamilyName', 'sid', null], [4, 'Weight', 'sid', null], [[12, 1], 'isFixedPitch', 'num', 0], [[12, 2], 'ItalicAngle', 'num', 0], [[12, 3], 'UnderlinePosition', 'num', -100], [[12, 4], 'UnderlineThickness', 'num', 50], [[12, 5], 'PaintType', 'num', 0], [[12, 6], 'CharstringType', 'num', 2], [[12, 7], 'FontMatrix', ['num', 'num', 'num', 'num', 'num', 'num'], [0.001, 0, 0, 0.001, 0, 0]], [13, 'UniqueID', 'num', null], [5, 'FontBBox', ['num', 'num', 'num', 'num'], [0, 0, 0, 0]], [[12, 8], 'StrokeWidth', 'num', 0], [14, 'XUID', 'array', null], [15, 'charset', 'offset', 0], [16, 'Encoding', 'offset', 0], [17, 'CharStrings', 'offset', 0], [18, 'Private', ['offset', 'offset'], null], [[12, 21], 'PostScript', 'sid', null], [[12, 22], 'BaseFontName', 'sid', null], [[12, 23], 'BaseFontBlend', 'delta', null], [[12, 31], 'CIDFontVersion', 'num', 0], [[12, 32], 'CIDFontRevision', 'num', 0], [[12, 33], 'CIDFontType', 'num', 0], [[12, 34], 'CIDCount', 'num', 8720], [[12, 35], 'UIDBase', 'num', null], [[12, 37], 'FDSelect', 'offset', null], [[12, 36], 'FDArray', 'offset', null], [[12, 38], 'FontName', 'sid', null]];
|
998 | var tables = null;
|
999 | function CFFTopDict(strings) {
|
1000 | if (tables === null) {
|
1001 | tables = CFFDict.createTables(layout);
|
1002 | }
|
1003 | CFFDict.call(this, tables, strings);
|
1004 | this.privateDict = null;
|
1005 | }
|
1006 | CFFTopDict.prototype = Object.create(CFFDict.prototype);
|
1007 | return CFFTopDict;
|
1008 | }();
|
1009 | var CFFPrivateDict = function CFFPrivateDictClosure() {
|
1010 | var layout = [[6, 'BlueValues', 'delta', null], [7, 'OtherBlues', 'delta', null], [8, 'FamilyBlues', 'delta', null], [9, 'FamilyOtherBlues', 'delta', null], [[12, 9], 'BlueScale', 'num', 0.039625], [[12, 10], 'BlueShift', 'num', 7], [[12, 11], 'BlueFuzz', 'num', 1], [10, 'StdHW', 'num', null], [11, 'StdVW', 'num', null], [[12, 12], 'StemSnapH', 'delta', null], [[12, 13], 'StemSnapV', 'delta', null], [[12, 14], 'ForceBold', 'num', 0], [[12, 17], 'LanguageGroup', 'num', 0], [[12, 18], 'ExpansionFactor', 'num', 0.06], [[12, 19], 'initialRandomSeed', 'num', 0], [20, 'defaultWidthX', 'num', 0], [21, 'nominalWidthX', 'num', 0], [19, 'Subrs', 'offset', null]];
|
1011 | var tables = null;
|
1012 | function CFFPrivateDict(strings) {
|
1013 | if (tables === null) {
|
1014 | tables = CFFDict.createTables(layout);
|
1015 | }
|
1016 | CFFDict.call(this, tables, strings);
|
1017 | this.subrsIndex = null;
|
1018 | }
|
1019 | CFFPrivateDict.prototype = Object.create(CFFDict.prototype);
|
1020 | return CFFPrivateDict;
|
1021 | }();
|
1022 | var CFFCharsetPredefinedTypes = {
|
1023 | ISO_ADOBE: 0,
|
1024 | EXPERT: 1,
|
1025 | EXPERT_SUBSET: 2
|
1026 | };
|
1027 | var CFFCharset = function CFFCharsetClosure() {
|
1028 | function CFFCharset(predefined, format, charset, raw) {
|
1029 | this.predefined = predefined;
|
1030 | this.format = format;
|
1031 | this.charset = charset;
|
1032 | this.raw = raw;
|
1033 | }
|
1034 | return CFFCharset;
|
1035 | }();
|
1036 | var CFFEncoding = function CFFEncodingClosure() {
|
1037 | function CFFEncoding(predefined, format, encoding, raw) {
|
1038 | this.predefined = predefined;
|
1039 | this.format = format;
|
1040 | this.encoding = encoding;
|
1041 | this.raw = raw;
|
1042 | }
|
1043 | return CFFEncoding;
|
1044 | }();
|
1045 | var CFFFDSelect = function CFFFDSelectClosure() {
|
1046 | function CFFFDSelect(fdSelect, raw) {
|
1047 | this.fdSelect = fdSelect;
|
1048 | this.raw = raw;
|
1049 | }
|
1050 | CFFFDSelect.prototype = {
|
1051 | getFDIndex: function CFFFDSelect_get(glyphIndex) {
|
1052 | if (glyphIndex < 0 || glyphIndex >= this.fdSelect.length) {
|
1053 | return -1;
|
1054 | }
|
1055 | return this.fdSelect[glyphIndex];
|
1056 | }
|
1057 | };
|
1058 | return CFFFDSelect;
|
1059 | }();
|
1060 | var CFFOffsetTracker = function CFFOffsetTrackerClosure() {
|
1061 | function CFFOffsetTracker() {
|
1062 | this.offsets = Object.create(null);
|
1063 | }
|
1064 | CFFOffsetTracker.prototype = {
|
1065 | isTracking: function CFFOffsetTracker_isTracking(key) {
|
1066 | return key in this.offsets;
|
1067 | },
|
1068 | track: function CFFOffsetTracker_track(key, location) {
|
1069 | if (key in this.offsets) {
|
1070 | throw new _util.FormatError('Already tracking location of ' + key);
|
1071 | }
|
1072 | this.offsets[key] = location;
|
1073 | },
|
1074 | offset: function CFFOffsetTracker_offset(value) {
|
1075 | for (var key in this.offsets) {
|
1076 | this.offsets[key] += value;
|
1077 | }
|
1078 | },
|
1079 | setEntryLocation: function CFFOffsetTracker_setEntryLocation(key, values, output) {
|
1080 | if (!(key in this.offsets)) {
|
1081 | throw new _util.FormatError('Not tracking location of ' + key);
|
1082 | }
|
1083 | var data = output.data;
|
1084 | var dataOffset = this.offsets[key];
|
1085 | var size = 5;
|
1086 | for (var i = 0, ii = values.length; i < ii; ++i) {
|
1087 | var offset0 = i * size + dataOffset;
|
1088 | var offset1 = offset0 + 1;
|
1089 | var offset2 = offset0 + 2;
|
1090 | var offset3 = offset0 + 3;
|
1091 | var offset4 = offset0 + 4;
|
1092 | if (data[offset0] !== 0x1d || data[offset1] !== 0 || data[offset2] !== 0 || data[offset3] !== 0 || data[offset4] !== 0) {
|
1093 | throw new _util.FormatError('writing to an offset that is not empty');
|
1094 | }
|
1095 | var value = values[i];
|
1096 | data[offset0] = 0x1d;
|
1097 | data[offset1] = value >> 24 & 0xFF;
|
1098 | data[offset2] = value >> 16 & 0xFF;
|
1099 | data[offset3] = value >> 8 & 0xFF;
|
1100 | data[offset4] = value & 0xFF;
|
1101 | }
|
1102 | }
|
1103 | };
|
1104 | return CFFOffsetTracker;
|
1105 | }();
|
1106 | var CFFCompiler = function CFFCompilerClosure() {
|
1107 | function CFFCompiler(cff) {
|
1108 | this.cff = cff;
|
1109 | }
|
1110 | CFFCompiler.prototype = {
|
1111 | compile: function CFFCompiler_compile() {
|
1112 | var cff = this.cff;
|
1113 | var output = {
|
1114 | data: [],
|
1115 | length: 0,
|
1116 | add: function CFFCompiler_add(data) {
|
1117 | this.data = this.data.concat(data);
|
1118 | this.length = this.data.length;
|
1119 | }
|
1120 | };
|
1121 | var header = this.compileHeader(cff.header);
|
1122 | output.add(header);
|
1123 | var nameIndex = this.compileNameIndex(cff.names);
|
1124 | output.add(nameIndex);
|
1125 | if (cff.isCIDFont) {
|
1126 | if (cff.topDict.hasName('FontMatrix')) {
|
1127 | var base = cff.topDict.getByName('FontMatrix');
|
1128 | cff.topDict.removeByName('FontMatrix');
|
1129 | for (var i = 0, ii = cff.fdArray.length; i < ii; i++) {
|
1130 | var subDict = cff.fdArray[i];
|
1131 | var matrix = base.slice(0);
|
1132 | if (subDict.hasName('FontMatrix')) {
|
1133 | matrix = _util.Util.transform(matrix, subDict.getByName('FontMatrix'));
|
1134 | }
|
1135 | subDict.setByName('FontMatrix', matrix);
|
1136 | }
|
1137 | }
|
1138 | }
|
1139 | var compiled = this.compileTopDicts([cff.topDict], output.length, cff.isCIDFont);
|
1140 | output.add(compiled.output);
|
1141 | var topDictTracker = compiled.trackers[0];
|
1142 | var stringIndex = this.compileStringIndex(cff.strings.strings);
|
1143 | output.add(stringIndex);
|
1144 | var globalSubrIndex = this.compileIndex(cff.globalSubrIndex);
|
1145 | output.add(globalSubrIndex);
|
1146 | if (cff.encoding && cff.topDict.hasName('Encoding')) {
|
1147 | if (cff.encoding.predefined) {
|
1148 | topDictTracker.setEntryLocation('Encoding', [cff.encoding.format], output);
|
1149 | } else {
|
1150 | var encoding = this.compileEncoding(cff.encoding);
|
1151 | topDictTracker.setEntryLocation('Encoding', [output.length], output);
|
1152 | output.add(encoding);
|
1153 | }
|
1154 | }
|
1155 | if (cff.charset && cff.topDict.hasName('charset')) {
|
1156 | if (cff.charset.predefined) {
|
1157 | topDictTracker.setEntryLocation('charset', [cff.charset.format], output);
|
1158 | } else {
|
1159 | var charset = this.compileCharset(cff.charset);
|
1160 | topDictTracker.setEntryLocation('charset', [output.length], output);
|
1161 | output.add(charset);
|
1162 | }
|
1163 | }
|
1164 | var charStrings = this.compileCharStrings(cff.charStrings);
|
1165 | topDictTracker.setEntryLocation('CharStrings', [output.length], output);
|
1166 | output.add(charStrings);
|
1167 | if (cff.isCIDFont) {
|
1168 | topDictTracker.setEntryLocation('FDSelect', [output.length], output);
|
1169 | var fdSelect = this.compileFDSelect(cff.fdSelect.raw);
|
1170 | output.add(fdSelect);
|
1171 | compiled = this.compileTopDicts(cff.fdArray, output.length, true);
|
1172 | topDictTracker.setEntryLocation('FDArray', [output.length], output);
|
1173 | output.add(compiled.output);
|
1174 | var fontDictTrackers = compiled.trackers;
|
1175 | this.compilePrivateDicts(cff.fdArray, fontDictTrackers, output);
|
1176 | }
|
1177 | this.compilePrivateDicts([cff.topDict], [topDictTracker], output);
|
1178 | output.add([0]);
|
1179 | return output.data;
|
1180 | },
|
1181 | encodeNumber: function CFFCompiler_encodeNumber(value) {
|
1182 | if (parseFloat(value) === parseInt(value, 10) && !isNaN(value)) {
|
1183 | return this.encodeInteger(value);
|
1184 | }
|
1185 | return this.encodeFloat(value);
|
1186 | },
|
1187 | encodeFloat: function CFFCompiler_encodeFloat(num) {
|
1188 | var value = num.toString();
|
1189 | var m = /\.(\d*?)(?:9{5,20}|0{5,20})\d{0,2}(?:e(.+)|$)/.exec(value);
|
1190 | if (m) {
|
1191 | var epsilon = parseFloat('1e' + ((m[2] ? +m[2] : 0) + m[1].length));
|
1192 | value = (Math.round(num * epsilon) / epsilon).toString();
|
1193 | }
|
1194 | var nibbles = '';
|
1195 | var i, ii;
|
1196 | for (i = 0, ii = value.length; i < ii; ++i) {
|
1197 | var a = value[i];
|
1198 | if (a === 'e') {
|
1199 | nibbles += value[++i] === '-' ? 'c' : 'b';
|
1200 | } else if (a === '.') {
|
1201 | nibbles += 'a';
|
1202 | } else if (a === '-') {
|
1203 | nibbles += 'e';
|
1204 | } else {
|
1205 | nibbles += a;
|
1206 | }
|
1207 | }
|
1208 | nibbles += nibbles.length & 1 ? 'f' : 'ff';
|
1209 | var out = [30];
|
1210 | for (i = 0, ii = nibbles.length; i < ii; i += 2) {
|
1211 | out.push(parseInt(nibbles.substr(i, 2), 16));
|
1212 | }
|
1213 | return out;
|
1214 | },
|
1215 | encodeInteger: function CFFCompiler_encodeInteger(value) {
|
1216 | var code;
|
1217 | if (value >= -107 && value <= 107) {
|
1218 | code = [value + 139];
|
1219 | } else if (value >= 108 && value <= 1131) {
|
1220 | value = value - 108;
|
1221 | code = [(value >> 8) + 247, value & 0xFF];
|
1222 | } else if (value >= -1131 && value <= -108) {
|
1223 | value = -value - 108;
|
1224 | code = [(value >> 8) + 251, value & 0xFF];
|
1225 | } else if (value >= -32768 && value <= 32767) {
|
1226 | code = [0x1c, value >> 8 & 0xFF, value & 0xFF];
|
1227 | } else {
|
1228 | code = [0x1d, value >> 24 & 0xFF, value >> 16 & 0xFF, value >> 8 & 0xFF, value & 0xFF];
|
1229 | }
|
1230 | return code;
|
1231 | },
|
1232 | compileHeader: function CFFCompiler_compileHeader(header) {
|
1233 | return [header.major, header.minor, header.hdrSize, header.offSize];
|
1234 | },
|
1235 | compileNameIndex: function CFFCompiler_compileNameIndex(names) {
|
1236 | var nameIndex = new CFFIndex();
|
1237 | for (var i = 0, ii = names.length; i < ii; ++i) {
|
1238 | var name = names[i];
|
1239 | var length = Math.min(name.length, 127);
|
1240 | var sanitizedName = new Array(length);
|
1241 | for (var j = 0; j < length; j++) {
|
1242 | var char = name[j];
|
1243 | if (char < '!' || char > '~' || char === '[' || char === ']' || char === '(' || char === ')' || char === '{' || char === '}' || char === '<' || char === '>' || char === '/' || char === '%') {
|
1244 | char = '_';
|
1245 | }
|
1246 | sanitizedName[j] = char;
|
1247 | }
|
1248 | sanitizedName = sanitizedName.join('');
|
1249 | if (sanitizedName === '') {
|
1250 | sanitizedName = 'Bad_Font_Name';
|
1251 | }
|
1252 | nameIndex.add((0, _util.stringToBytes)(sanitizedName));
|
1253 | }
|
1254 | return this.compileIndex(nameIndex);
|
1255 | },
|
1256 | compileTopDicts: function CFFCompiler_compileTopDicts(dicts, length, removeCidKeys) {
|
1257 | var fontDictTrackers = [];
|
1258 | var fdArrayIndex = new CFFIndex();
|
1259 | for (var i = 0, ii = dicts.length; i < ii; ++i) {
|
1260 | var fontDict = dicts[i];
|
1261 | if (removeCidKeys) {
|
1262 | fontDict.removeByName('CIDFontVersion');
|
1263 | fontDict.removeByName('CIDFontRevision');
|
1264 | fontDict.removeByName('CIDFontType');
|
1265 | fontDict.removeByName('CIDCount');
|
1266 | fontDict.removeByName('UIDBase');
|
1267 | }
|
1268 | var fontDictTracker = new CFFOffsetTracker();
|
1269 | var fontDictData = this.compileDict(fontDict, fontDictTracker);
|
1270 | fontDictTrackers.push(fontDictTracker);
|
1271 | fdArrayIndex.add(fontDictData);
|
1272 | fontDictTracker.offset(length);
|
1273 | }
|
1274 | fdArrayIndex = this.compileIndex(fdArrayIndex, fontDictTrackers);
|
1275 | return {
|
1276 | trackers: fontDictTrackers,
|
1277 | output: fdArrayIndex
|
1278 | };
|
1279 | },
|
1280 | compilePrivateDicts: function CFFCompiler_compilePrivateDicts(dicts, trackers, output) {
|
1281 | for (var i = 0, ii = dicts.length; i < ii; ++i) {
|
1282 | var fontDict = dicts[i];
|
1283 | var privateDict = fontDict.privateDict;
|
1284 | if (!privateDict || !fontDict.hasName('Private')) {
|
1285 | throw new _util.FormatError('There must be a private dictionary.');
|
1286 | }
|
1287 | var privateDictTracker = new CFFOffsetTracker();
|
1288 | var privateDictData = this.compileDict(privateDict, privateDictTracker);
|
1289 | var outputLength = output.length;
|
1290 | privateDictTracker.offset(outputLength);
|
1291 | if (!privateDictData.length) {
|
1292 | outputLength = 0;
|
1293 | }
|
1294 | trackers[i].setEntryLocation('Private', [privateDictData.length, outputLength], output);
|
1295 | output.add(privateDictData);
|
1296 | if (privateDict.subrsIndex && privateDict.hasName('Subrs')) {
|
1297 | var subrs = this.compileIndex(privateDict.subrsIndex);
|
1298 | privateDictTracker.setEntryLocation('Subrs', [privateDictData.length], output);
|
1299 | output.add(subrs);
|
1300 | }
|
1301 | }
|
1302 | },
|
1303 | compileDict: function CFFCompiler_compileDict(dict, offsetTracker) {
|
1304 | var out = [];
|
1305 | var order = dict.order;
|
1306 | for (var i = 0; i < order.length; ++i) {
|
1307 | var key = order[i];
|
1308 | if (!(key in dict.values)) {
|
1309 | continue;
|
1310 | }
|
1311 | var values = dict.values[key];
|
1312 | var types = dict.types[key];
|
1313 | if (!Array.isArray(types)) {
|
1314 | types = [types];
|
1315 | }
|
1316 | if (!Array.isArray(values)) {
|
1317 | values = [values];
|
1318 | }
|
1319 | if (values.length === 0) {
|
1320 | continue;
|
1321 | }
|
1322 | for (var j = 0, jj = types.length; j < jj; ++j) {
|
1323 | var type = types[j];
|
1324 | var value = values[j];
|
1325 | switch (type) {
|
1326 | case 'num':
|
1327 | case 'sid':
|
1328 | out = out.concat(this.encodeNumber(value));
|
1329 | break;
|
1330 | case 'offset':
|
1331 | var name = dict.keyToNameMap[key];
|
1332 | if (!offsetTracker.isTracking(name)) {
|
1333 | offsetTracker.track(name, out.length);
|
1334 | }
|
1335 | out = out.concat([0x1d, 0, 0, 0, 0]);
|
1336 | break;
|
1337 | case 'array':
|
1338 | case 'delta':
|
1339 | out = out.concat(this.encodeNumber(value));
|
1340 | for (var k = 1, kk = values.length; k < kk; ++k) {
|
1341 | out = out.concat(this.encodeNumber(values[k]));
|
1342 | }
|
1343 | break;
|
1344 | default:
|
1345 | throw new _util.FormatError('Unknown data type of ' + type);
|
1346 | }
|
1347 | }
|
1348 | out = out.concat(dict.opcodes[key]);
|
1349 | }
|
1350 | return out;
|
1351 | },
|
1352 | compileStringIndex: function CFFCompiler_compileStringIndex(strings) {
|
1353 | var stringIndex = new CFFIndex();
|
1354 | for (var i = 0, ii = strings.length; i < ii; ++i) {
|
1355 | stringIndex.add((0, _util.stringToBytes)(strings[i]));
|
1356 | }
|
1357 | return this.compileIndex(stringIndex);
|
1358 | },
|
1359 | compileGlobalSubrIndex: function CFFCompiler_compileGlobalSubrIndex() {
|
1360 | var globalSubrIndex = this.cff.globalSubrIndex;
|
1361 | this.out.writeByteArray(this.compileIndex(globalSubrIndex));
|
1362 | },
|
1363 | compileCharStrings: function CFFCompiler_compileCharStrings(charStrings) {
|
1364 | return this.compileIndex(charStrings);
|
1365 | },
|
1366 | compileCharset: function CFFCompiler_compileCharset(charset) {
|
1367 | return this.compileTypedArray(charset.raw);
|
1368 | },
|
1369 | compileEncoding: function CFFCompiler_compileEncoding(encoding) {
|
1370 | return this.compileTypedArray(encoding.raw);
|
1371 | },
|
1372 | compileFDSelect: function CFFCompiler_compileFDSelect(fdSelect) {
|
1373 | return this.compileTypedArray(fdSelect);
|
1374 | },
|
1375 | compileTypedArray: function CFFCompiler_compileTypedArray(data) {
|
1376 | var out = [];
|
1377 | for (var i = 0, ii = data.length; i < ii; ++i) {
|
1378 | out[i] = data[i];
|
1379 | }
|
1380 | return out;
|
1381 | },
|
1382 | compileIndex: function CFFCompiler_compileIndex(index, trackers) {
|
1383 | trackers = trackers || [];
|
1384 | var objects = index.objects;
|
1385 | var count = objects.length;
|
1386 | if (count === 0) {
|
1387 | return [0, 0, 0];
|
1388 | }
|
1389 | var data = [count >> 8 & 0xFF, count & 0xff];
|
1390 | var lastOffset = 1,
|
1391 | i;
|
1392 | for (i = 0; i < count; ++i) {
|
1393 | lastOffset += objects[i].length;
|
1394 | }
|
1395 | var offsetSize;
|
1396 | if (lastOffset < 0x100) {
|
1397 | offsetSize = 1;
|
1398 | } else if (lastOffset < 0x10000) {
|
1399 | offsetSize = 2;
|
1400 | } else if (lastOffset < 0x1000000) {
|
1401 | offsetSize = 3;
|
1402 | } else {
|
1403 | offsetSize = 4;
|
1404 | }
|
1405 | data.push(offsetSize);
|
1406 | var relativeOffset = 1;
|
1407 | for (i = 0; i < count + 1; i++) {
|
1408 | if (offsetSize === 1) {
|
1409 | data.push(relativeOffset & 0xFF);
|
1410 | } else if (offsetSize === 2) {
|
1411 | data.push(relativeOffset >> 8 & 0xFF, relativeOffset & 0xFF);
|
1412 | } else if (offsetSize === 3) {
|
1413 | data.push(relativeOffset >> 16 & 0xFF, relativeOffset >> 8 & 0xFF, relativeOffset & 0xFF);
|
1414 | } else {
|
1415 | data.push(relativeOffset >>> 24 & 0xFF, relativeOffset >> 16 & 0xFF, relativeOffset >> 8 & 0xFF, relativeOffset & 0xFF);
|
1416 | }
|
1417 | if (objects[i]) {
|
1418 | relativeOffset += objects[i].length;
|
1419 | }
|
1420 | }
|
1421 | for (i = 0; i < count; i++) {
|
1422 | if (trackers[i]) {
|
1423 | trackers[i].offset(data.length);
|
1424 | }
|
1425 | for (var j = 0, jj = objects[i].length; j < jj; j++) {
|
1426 | data.push(objects[i][j]);
|
1427 | }
|
1428 | }
|
1429 | return data;
|
1430 | }
|
1431 | };
|
1432 | return CFFCompiler;
|
1433 | }();
|
1434 | exports.CFFStandardStrings = CFFStandardStrings;
|
1435 | exports.CFFParser = CFFParser;
|
1436 | exports.CFF = CFF;
|
1437 | exports.CFFHeader = CFFHeader;
|
1438 | exports.CFFStrings = CFFStrings;
|
1439 | exports.CFFIndex = CFFIndex;
|
1440 | exports.CFFCharset = CFFCharset;
|
1441 | exports.CFFTopDict = CFFTopDict;
|
1442 | exports.CFFPrivateDict = CFFPrivateDict;
|
1443 | exports.CFFCompiler = CFFCompiler; |
\ | No newline at end of file |