5537 lines
196 KiB
JavaScript
5537 lines
196 KiB
JavaScript
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
|
|
|
|
'use strict';
|
|
|
|
/**
|
|
* Maximum time to wait for a font to be loaded by font-face rules.
|
|
*/
|
|
var kMaxWaitForFontFace = 1000;
|
|
|
|
// Unicode Private Use Area
|
|
var kCmapGlyphOffset = 0xE000;
|
|
var kSizeOfGlyphArea = 0x1900;
|
|
var kSymbolicFontGlyphOffset = 0xF000;
|
|
|
|
// PDF Glyph Space Units are one Thousandth of a TextSpace Unit
|
|
// except for Type 3 fonts
|
|
var kPDFGlyphSpaceUnits = 1000;
|
|
|
|
// Until hinting is fully supported this constant can be used
|
|
var kHintingEnabled = false;
|
|
|
|
var FontFlags = {
|
|
FixedPitch: 1,
|
|
Serif: 2,
|
|
Symbolic: 4,
|
|
Script: 8,
|
|
Nonsymbolic: 32,
|
|
Italic: 64,
|
|
AllCap: 65536,
|
|
SmallCap: 131072,
|
|
ForceBold: 262144
|
|
};
|
|
|
|
var Encodings = {
|
|
ExpertEncoding: ['', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
|
|
'', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
|
|
'space', 'exclamsmall', 'Hungarumlautsmall', '', 'dollaroldstyle',
|
|
'dollarsuperior', 'ampersandsmall', 'Acutesmall', 'parenleftsuperior',
|
|
'parenrightsuperior', 'twodotenleader', 'onedotenleader', 'comma',
|
|
'hyphen', 'period', 'fraction', 'zerooldstyle', 'oneoldstyle',
|
|
'twooldstyle', 'threeoldstyle', 'fouroldstyle', 'fiveoldstyle',
|
|
'sixoldstyle', 'sevenoldstyle', 'eightoldstyle', 'nineoldstyle', 'colon',
|
|
'semicolon', 'commasuperior', 'threequartersemdash', 'periodsuperior',
|
|
'questionsmall', '', 'asuperior', 'bsuperior', 'centsuperior', 'dsuperior',
|
|
'esuperior', '', '', 'isuperior', '', '', 'lsuperior', 'msuperior',
|
|
'nsuperior', 'osuperior', '', '', 'rsuperior', 'ssuperior', 'tsuperior',
|
|
'', 'ff', 'fi', 'fl', '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', '', '', '', 'onequarter', 'onehalf', 'threequarters',
|
|
'questiondownsmall', 'oneeighth', 'threeeighths', 'fiveeighths',
|
|
'seveneighths', 'onethird', 'twothirds', '', '', 'zerosuperior',
|
|
'onesuperior', 'twosuperior', 'threesuperior', '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'],
|
|
MacExpertEncoding: ['', '', '', '', '', '', '', '', '', '', '', '', '', '',
|
|
'', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
|
|
'space', 'exclamsmall', 'Hungarumlautsmall', 'centoldstyle',
|
|
'dollaroldstyle', 'dollarsuperior', 'ampersandsmall', 'Acutesmall',
|
|
'parenleftsuperior', 'parenrightsuperior', 'twodotenleader',
|
|
'onedotenleader', 'comma', 'hyphen', 'period', 'fraction', 'zerooldstyle',
|
|
'oneoldstyle', 'twooldstyle', 'threeoldstyle', 'fouroldstyle',
|
|
'fiveoldstyle', 'sixoldstyle', 'sevenoldstyle', 'eightoldstyle',
|
|
'nineoldstyle', 'colon', 'semicolon', '', 'threequartersemdash', '',
|
|
'questionsmall', '', '', '', '', 'Ethsmall', '', '', 'onequarter',
|
|
'onehalf', 'threequarters', 'oneeighth', 'threeeighths', 'fiveeighths',
|
|
'seveneighths', 'onethird', 'twothirds', '', '', '', '', '', '', 'ff',
|
|
'fi', 'fl', 'ffi', 'ffl', 'parenleftinferior', '', 'parenrightinferior',
|
|
'Circumflexsmall', 'hypheninferior', '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', '', '', 'asuperior', 'centsuperior', '', '', '', '',
|
|
'Aacutesmall', 'Agravesmall', 'Acircumflexsmall', 'Adieresissmall',
|
|
'Atildesmall', 'Aringsmall', 'Ccedillasmall', 'Eacutesmall', 'Egravesmall',
|
|
'Ecircumflexsmall', 'Edieresissmall', 'Iacutesmall', 'Igravesmall',
|
|
'Icircumflexsmall', 'Idieresissmall', 'Ntildesmall', 'Oacutesmall',
|
|
'Ogravesmall', 'Ocircumflexsmall', 'Odieresissmall', 'Otildesmall',
|
|
'Uacutesmall', 'Ugravesmall', 'Ucircumflexsmall', 'Udieresissmall', '',
|
|
'eightsuperior', 'fourinferior', 'threeinferior', 'sixinferior',
|
|
'eightinferior', 'seveninferior', 'Scaronsmall', '', 'centinferior',
|
|
'twoinferior', '', 'Dieresissmall', '', 'Caronsmall', 'osuperior',
|
|
'fiveinferior', '', 'commainferior', 'periodinferior', 'Yacutesmall', '',
|
|
'dollarinferior', '', 'Thornsmall', '', 'nineinferior', 'zeroinferior',
|
|
'Zcaronsmall', 'AEsmall', 'Oslashsmall', 'questiondownsmall',
|
|
'oneinferior', 'Lslashsmall', '', '', '', '', '', '', 'Cedillasmall', '',
|
|
'', '', '', '', 'OEsmall', 'figuredash', 'hyphensuperior', '', '', '', '',
|
|
'exclamdownsmall', '', 'Ydieresissmall', '', 'onesuperior', 'twosuperior',
|
|
'threesuperior', 'foursuperior', 'fivesuperior', 'sixsuperior',
|
|
'sevensuperior', 'ninesuperior', 'zerosuperior', '', 'esuperior',
|
|
'rsuperior', 'tsuperior', '', '', 'isuperior', 'ssuperior', 'dsuperior',
|
|
'', '', '', '', '', 'lsuperior', 'Ogoneksmall', 'Brevesmall',
|
|
'Macronsmall', 'bsuperior', 'nsuperior', 'msuperior', 'commasuperior',
|
|
'periodsuperior', 'Dotaccentsmall', 'Ringsmall'],
|
|
MacRomanEncoding: ['', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
|
|
'', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
|
|
'space', 'exclam', 'quotedbl', 'numbersign', 'dollar', 'percent',
|
|
'ampersand', 'quotesingle', 'parenleft', 'parenright', 'asterisk', 'plus',
|
|
'comma', 'hyphen', 'period', 'slash', 'zero', 'one', 'two', 'three',
|
|
'four', 'five', 'six', 'seven', 'eight', 'nine', 'colon', 'semicolon',
|
|
'less', 'equal', 'greater', 'question', 'at', 'A', 'B', 'C', 'D', 'E', 'F',
|
|
'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U',
|
|
'V', 'W', 'X', 'Y', 'Z', 'bracketleft', 'backslash', 'bracketright',
|
|
'asciicircum', 'underscore', 'grave', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
|
|
'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
|
|
'w', 'x', 'y', 'z', 'braceleft', 'bar', 'braceright', 'asciitilde', '',
|
|
'Adieresis', 'Aring', 'Ccedilla', 'Eacute', 'Ntilde', 'Odieresis',
|
|
'Udieresis', 'aacute', 'agrave', 'acircumflex', 'adieresis', 'atilde',
|
|
'aring', 'ccedilla', 'eacute', 'egrave', 'ecircumflex', 'edieresis',
|
|
'iacute', 'igrave', 'icircumflex', 'idieresis', 'ntilde', 'oacute',
|
|
'ograve', 'ocircumflex', 'odieresis', 'otilde', 'uacute', 'ugrave',
|
|
'ucircumflex', 'udieresis', 'dagger', 'degree', 'cent', 'sterling',
|
|
'section', 'bullet', 'paragraph', 'germandbls', 'registered', 'copyright',
|
|
'trademark', 'acute', 'dieresis', 'notequal', 'AE', 'Oslash', 'infinity',
|
|
'plusminus', 'lessequal', 'greaterequal', 'yen', 'mu', 'partialdiff',
|
|
'summation', 'product', 'pi', 'integral', 'ordfeminine', 'ordmasculine',
|
|
'Omega', 'ae', 'oslash', 'questiondown', 'exclamdown', 'logicalnot',
|
|
'radical', 'florin', 'approxequal', 'Delta', 'guillemotleft',
|
|
'guillemotright', 'ellipsis', '', 'Agrave', 'Atilde', 'Otilde', 'OE',
|
|
'oe', 'endash', 'emdash', 'quotedblleft', 'quotedblright', 'quoteleft',
|
|
'quoteright', 'divide', 'lozenge', 'ydieresis', 'Ydieresis', 'fraction',
|
|
'currency', 'guilsinglleft', 'guilsinglright', 'fi', 'fl', 'daggerdbl',
|
|
'periodcentered', 'quotesinglbase', 'quotedblbase', 'perthousand',
|
|
'Acircumflex', 'Ecircumflex', 'Aacute', 'Edieresis', 'Egrave', 'Iacute',
|
|
'Icircumflex', 'Idieresis', 'Igrave', 'Oacute', 'Ocircumflex', 'apple',
|
|
'Ograve', 'Uacute', 'Ucircumflex', 'Ugrave', 'dotlessi', 'circumflex',
|
|
'tilde', 'macron', 'breve', 'dotaccent', 'ring', 'cedilla', 'hungarumlaut',
|
|
'ogonek', 'caron'],
|
|
StandardEncoding: ['', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
|
|
'', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
|
|
'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'],
|
|
WinAnsiEncoding: ['', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
|
|
'', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
|
|
'space', 'exclam', 'quotedbl', 'numbersign', 'dollar', 'percent',
|
|
'ampersand', 'quotesingle', 'parenleft', 'parenright', 'asterisk', 'plus',
|
|
'comma', 'hyphen', 'period', 'slash', 'zero', 'one', 'two', 'three',
|
|
'four', 'five', 'six', 'seven', 'eight', 'nine', 'colon', 'semicolon',
|
|
'less', 'equal', 'greater', 'question', 'at', 'A', 'B', 'C', 'D', 'E', 'F',
|
|
'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U',
|
|
'V', 'W', 'X', 'Y', 'Z', 'bracketleft', 'backslash', 'bracketright',
|
|
'asciicircum', 'underscore', 'grave', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
|
|
'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
|
|
'w', 'x', 'y', 'z', 'braceleft', 'bar', 'braceright', 'asciitilde',
|
|
'bullet', 'Euro', 'bullet', 'quotesinglbase', 'florin', 'quotedblbase',
|
|
'ellipsis', 'dagger', 'daggerdbl', 'circumflex', 'perthousand', 'Scaron',
|
|
'guilsinglleft', 'OE', 'bullet', 'Zcaron', 'bullet', 'bullet', 'quoteleft',
|
|
'quoteright', 'quotedblleft', 'quotedblright', 'bullet', 'endash',
|
|
'emdash', 'tilde', 'trademark', 'scaron', 'guilsinglright', 'oe', 'bullet',
|
|
'zcaron', 'Ydieresis', '', 'exclamdown', 'cent', 'sterling',
|
|
'currency', 'yen', 'brokenbar', 'section', 'dieresis', 'copyright',
|
|
'ordfeminine', 'guillemotleft', 'logicalnot', 'hyphen', 'registered',
|
|
'macron', 'degree', 'plusminus', 'twosuperior', 'threesuperior', 'acute',
|
|
'mu', 'paragraph', 'periodcentered', 'cedilla', 'onesuperior',
|
|
'ordmasculine', 'guillemotright', 'onequarter', 'onehalf', 'threequarters',
|
|
'questiondown', 'Agrave', 'Aacute', 'Acircumflex', 'Atilde', 'Adieresis',
|
|
'Aring', 'AE', 'Ccedilla', 'Egrave', 'Eacute', 'Ecircumflex', 'Edieresis',
|
|
'Igrave', 'Iacute', 'Icircumflex', 'Idieresis', 'Eth', 'Ntilde', 'Ograve',
|
|
'Oacute', 'Ocircumflex', 'Otilde', 'Odieresis', 'multiply', 'Oslash',
|
|
'Ugrave', 'Uacute', 'Ucircumflex', 'Udieresis', 'Yacute', 'Thorn',
|
|
'germandbls', 'agrave', 'aacute', 'acircumflex', 'atilde', 'adieresis',
|
|
'aring', 'ae', 'ccedilla', 'egrave', 'eacute', 'ecircumflex', 'edieresis',
|
|
'igrave', 'iacute', 'icircumflex', 'idieresis', 'eth', 'ntilde', 'ograve',
|
|
'oacute', 'ocircumflex', 'otilde', 'odieresis', 'divide', 'oslash',
|
|
'ugrave', 'uacute', 'ucircumflex', 'udieresis', 'yacute', 'thorn',
|
|
'ydieresis'],
|
|
symbolsEncoding: ['', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
|
|
'', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
|
|
'space', 'exclam', 'universal', 'numbersign', 'existential', 'percent',
|
|
'ampersand', 'suchthat', 'parenleft', 'parenright', 'asteriskmath', 'plus',
|
|
'comma', 'minus', 'period', 'slash', 'zero', 'one', 'two', 'three', 'four',
|
|
'five', 'six', 'seven', 'eight', 'nine', 'colon', 'semicolon', 'less',
|
|
'equal', 'greater', 'question', 'congruent', 'Alpha', 'Beta', 'Chi',
|
|
'Delta', 'Epsilon', 'Phi', 'Gamma', 'Eta', 'Iota', 'theta1', 'Kappa',
|
|
'Lambda', 'Mu', 'Nu', 'Omicron', 'Pi', 'Theta', 'Rho', 'Sigma', 'Tau',
|
|
'Upsilon', 'sigma1', 'Omega', 'Xi', 'Psi', 'Zeta', 'bracketleft',
|
|
'therefore', 'bracketright', 'perpendicular', 'underscore', 'radicalex',
|
|
'alpha', 'beta', 'chi', 'delta', 'epsilon', 'phi', 'gamma', 'eta', 'iota',
|
|
'phi1', 'kappa', 'lambda', 'mu', 'nu', 'omicron', 'pi', 'theta', 'rho',
|
|
'sigma', 'tau', 'upsilon', 'omega1', 'omega', 'xi', 'psi', 'zeta',
|
|
'braceleft', 'bar', 'braceright', 'similar', '', '', '', '', '', '', '',
|
|
'', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
|
|
'', '', '', '', '', '', '', 'Euro', 'Upsilon1', 'minute', 'lessequal',
|
|
'fraction', 'infinity', 'florin', 'club', 'diamond', 'heart', 'spade',
|
|
'arrowboth', 'arrowleft', 'arrowup', 'arrowright', 'arrowdown', 'degree',
|
|
'plusminus', 'second', 'greaterequal', 'multiply', 'proportional',
|
|
'partialdiff', 'bullet', 'divide', 'notequal', 'equivalence',
|
|
'approxequal', 'ellipsis', 'arrowvertex', 'arrowhorizex', 'carriagereturn',
|
|
'aleph', 'Ifraktur', 'Rfraktur', 'weierstrass', 'circlemultiply',
|
|
'circleplus', 'emptyset', 'intersection', 'union', 'propersuperset',
|
|
'reflexsuperset', 'notsubset', 'propersubset', 'reflexsubset', 'element',
|
|
'notelement', 'angle', 'gradient', 'registerserif', 'copyrightserif',
|
|
'trademarkserif', 'product', 'radical', 'dotmath', 'logicalnot',
|
|
'logicaland', 'logicalor', 'arrowdblboth', 'arrowdblleft', 'arrowdblup',
|
|
'arrowdblright', 'arrowdbldown', 'lozenge', 'angleleft', 'registersans',
|
|
'copyrightsans', 'trademarksans', 'summation', 'parenlefttp',
|
|
'parenleftex', 'parenleftbt', 'bracketlefttp', 'bracketleftex',
|
|
'bracketleftbt', 'bracelefttp', 'braceleftmid', 'braceleftbt', 'braceex',
|
|
'', 'angleright', 'integral', 'integraltp', 'integralex', 'integralbt',
|
|
'parenrighttp', 'parenrightex', 'parenrightbt', 'bracketrighttp',
|
|
'bracketrightex', 'bracketrightbt', 'bracerighttp', 'bracerightmid',
|
|
'bracerightbt'],
|
|
zapfDingbatsEncoding: ['', '', '', '', '', '', '', '', '', '', '', '', '', '',
|
|
'', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
|
|
'space', 'a1', 'a2', 'a202', 'a3', 'a4', 'a5', 'a119', 'a118', 'a117',
|
|
'a11', 'a12', 'a13', 'a14', 'a15', 'a16', 'a105', 'a17', 'a18', 'a19',
|
|
'a20', 'a21', 'a22', 'a23', 'a24', 'a25', 'a26', 'a27', 'a28', 'a6', 'a7',
|
|
'a8', 'a9', 'a10', 'a29', 'a30', 'a31', 'a32', 'a33', 'a34', 'a35', 'a36',
|
|
'a37', 'a38', 'a39', 'a40', 'a41', 'a42', 'a43', 'a44', 'a45', 'a46',
|
|
'a47', 'a48', 'a49', 'a50', 'a51', 'a52', 'a53', 'a54', 'a55', 'a56',
|
|
'a57', 'a58', 'a59', 'a60', 'a61', 'a62', 'a63', 'a64', 'a65', 'a66',
|
|
'a67', 'a68', 'a69', 'a70', 'a71', 'a72', 'a73', 'a74', 'a203', 'a75',
|
|
'a204', 'a76', 'a77', 'a78', 'a79', 'a81', 'a82', 'a83', 'a84', 'a97',
|
|
'a98', 'a99', 'a100', '', '', '', '', '', '', '', '', '', '', '', '', '',
|
|
'', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
|
|
'', '', 'a101', 'a102', 'a103', 'a104', 'a106', 'a107', 'a108', 'a112',
|
|
'a111', 'a110', 'a109', 'a120', 'a121', 'a122', 'a123', 'a124', 'a125',
|
|
'a126', 'a127', 'a128', 'a129', 'a130', 'a131', 'a132', 'a133', 'a134',
|
|
'a135', 'a136', 'a137', 'a138', 'a139', 'a140', 'a141', 'a142', 'a143',
|
|
'a144', 'a145', 'a146', 'a147', 'a148', 'a149', 'a150', 'a151', 'a152',
|
|
'a153', 'a154', 'a155', 'a156', 'a157', 'a158', 'a159', 'a160', 'a161',
|
|
'a163', 'a164', 'a196', 'a165', 'a192', 'a166', 'a167', 'a168', 'a169',
|
|
'a170', 'a171', 'a172', 'a173', 'a162', 'a174', 'a175', 'a176', 'a177',
|
|
'a178', 'a179', 'a193', 'a180', 'a199', 'a181', 'a200', 'a182', '', 'a201',
|
|
'a183', 'a184', 'a197', 'a185', 'a194', 'a198', 'a186', 'a195', 'a187',
|
|
'a188', 'a189', 'a190', 'a191']
|
|
};
|
|
|
|
/**
|
|
* Hold a map of decoded fonts and of the standard fourteen Type1
|
|
* fonts and their acronyms.
|
|
*/
|
|
var stdFontMap = {
|
|
'ArialNarrow': 'Helvetica',
|
|
'ArialNarrow-Bold': 'Helvetica-Bold',
|
|
'ArialNarrow-BoldItalic': 'Helvetica-BoldOblique',
|
|
'ArialNarrow-Italic': 'Helvetica-Oblique',
|
|
'ArialBlack': 'Helvetica',
|
|
'ArialBlack-Bold': 'Helvetica-Bold',
|
|
'ArialBlack-BoldItalic': 'Helvetica-BoldOblique',
|
|
'ArialBlack-Italic': 'Helvetica-Oblique',
|
|
'Arial': 'Helvetica',
|
|
'Arial-Bold': 'Helvetica-Bold',
|
|
'Arial-BoldItalic': 'Helvetica-BoldOblique',
|
|
'Arial-Italic': 'Helvetica-Oblique',
|
|
'Arial-BoldItalicMT': 'Helvetica-BoldOblique',
|
|
'Arial-BoldMT': 'Helvetica-Bold',
|
|
'Arial-ItalicMT': 'Helvetica-Oblique',
|
|
'ArialMT': 'Helvetica',
|
|
'Courier-Bold': 'Courier-Bold',
|
|
'Courier-BoldItalic': 'Courier-BoldOblique',
|
|
'Courier-Italic': 'Courier-Oblique',
|
|
'CourierNew': 'Courier',
|
|
'CourierNew-Bold': 'Courier-Bold',
|
|
'CourierNew-BoldItalic': 'Courier-BoldOblique',
|
|
'CourierNew-Italic': 'Courier-Oblique',
|
|
'CourierNewPS-BoldItalicMT': 'Courier-BoldOblique',
|
|
'CourierNewPS-BoldMT': 'Courier-Bold',
|
|
'CourierNewPS-ItalicMT': 'Courier-Oblique',
|
|
'CourierNewPSMT': 'Courier',
|
|
'Helvetica-Bold': 'Helvetica-Bold',
|
|
'Helvetica-BoldItalic': 'Helvetica-BoldOblique',
|
|
'Helvetica-Italic': 'Helvetica-Oblique',
|
|
'Symbol-Bold': 'Symbol',
|
|
'Symbol-BoldItalic': 'Symbol',
|
|
'Symbol-Italic': 'Symbol',
|
|
'TimesNewRoman': 'Times-Roman',
|
|
'TimesNewRoman-Bold': 'Times-Bold',
|
|
'TimesNewRoman-BoldItalic': 'Times-BoldItalic',
|
|
'TimesNewRoman-Italic': 'Times-Italic',
|
|
'TimesNewRomanPS': 'Times-Roman',
|
|
'TimesNewRomanPS-Bold': 'Times-Bold',
|
|
'TimesNewRomanPS-BoldItalic': 'Times-BoldItalic',
|
|
'TimesNewRomanPS-BoldItalicMT': 'Times-BoldItalic',
|
|
'TimesNewRomanPS-BoldMT': 'Times-Bold',
|
|
'TimesNewRomanPS-Italic': 'Times-Italic',
|
|
'TimesNewRomanPS-ItalicMT': 'Times-Italic',
|
|
'TimesNewRomanPSMT': 'Times-Roman',
|
|
'TimesNewRomanPSMT-Bold': 'Times-Bold',
|
|
'TimesNewRomanPSMT-BoldItalic': 'Times-BoldItalic',
|
|
'TimesNewRomanPSMT-Italic': 'Times-Italic'
|
|
};
|
|
|
|
/**
|
|
* Holds the map of the non-standard fonts that might be included as a standard
|
|
* fonts without glyph data.
|
|
*/
|
|
var nonStdFontMap = {
|
|
'ComicSansMS': 'Comic Sans MS',
|
|
'ComicSansMS-Bold': 'Comic Sans MS-Bold',
|
|
'ComicSansMS-BoldItalic': 'Comic Sans MS-BoldItalic',
|
|
'ComicSansMS-Italic': 'Comic Sans MS-Italic',
|
|
'LucidaConsole': 'Courier',
|
|
'LucidaConsole-Bold': 'Courier-Bold',
|
|
'LucidaConsole-BoldItalic': 'Courier-BoldOblique',
|
|
'LucidaConsole-Italic': 'Courier-Oblique'
|
|
};
|
|
|
|
var serifFonts = {
|
|
'Adobe Jenson': true, 'Adobe Text': true, 'Albertus': true,
|
|
'Aldus': true, 'Alexandria': true, 'Algerian': true,
|
|
'American Typewriter': true, 'Antiqua': true, 'Apex': true,
|
|
'Arno': true, 'Aster': true, 'Aurora': true,
|
|
'Baskerville': true, 'Bell': true, 'Bembo': true,
|
|
'Bembo Schoolbook': true, 'Benguiat': true, 'Berkeley Old Style': true,
|
|
'Bernhard Modern': true, 'Berthold City': true, 'Bodoni': true,
|
|
'Bauer Bodoni': true, 'Book Antiqua': true, 'Bookman': true,
|
|
'Bordeaux Roman': true, 'Californian FB': true, 'Calisto': true,
|
|
'Calvert': true, 'Capitals': true, 'Cambria': true,
|
|
'Cartier': true, 'Caslon': true, 'Catull': true,
|
|
'Centaur': true, 'Century Old Style': true, 'Century Schoolbook': true,
|
|
'Chaparral': true, 'Charis SIL': true, 'Cheltenham': true,
|
|
'Cholla Slab': true, 'Clarendon': true, 'Clearface': true,
|
|
'Cochin': true, 'Colonna': true, 'Computer Modern': true,
|
|
'Concrete Roman': true, 'Constantia': true, 'Cooper Black': true,
|
|
'Corona': true, 'Ecotype': true, 'Egyptienne': true,
|
|
'Elephant': true, 'Excelsior': true, 'Fairfield': true,
|
|
'FF Scala': true, 'Folkard': true, 'Footlight': true,
|
|
'FreeSerif': true, 'Friz Quadrata': true, 'Garamond': true,
|
|
'Gentium': true, 'Georgia': true, 'Gloucester': true,
|
|
'Goudy Old Style': true, 'Goudy Schoolbook': true, 'Goudy Pro Font': true,
|
|
'Granjon': true, 'Guardian Egyptian': true, 'Heather': true,
|
|
'Hercules': true, 'High Tower Text': true, 'Hiroshige': true,
|
|
'Hoefler Text': true, 'Humana Serif': true, 'Imprint': true,
|
|
'Ionic No. 5': true, 'Janson': true, 'Joanna': true,
|
|
'Korinna': true, 'Lexicon': true, 'Liberation Serif': true,
|
|
'Linux Libertine': true, 'Literaturnaya': true, 'Lucida': true,
|
|
'Lucida Bright': true, 'Melior': true, 'Memphis': true,
|
|
'Miller': true, 'Minion': true, 'Modern': true,
|
|
'Mona Lisa': true, 'Mrs Eaves': true, 'MS Serif': true,
|
|
'Museo Slab': true, 'New York': true, 'Nimbus Roman': true,
|
|
'NPS Rawlinson Roadway': true, 'Palatino': true, 'Perpetua': true,
|
|
'Plantin': true, 'Plantin Schoolbook': true, 'Playbill': true,
|
|
'Poor Richard': true, 'Rawlinson Roadway': true, 'Renault': true,
|
|
'Requiem': true, 'Rockwell': true, 'Roman': true,
|
|
'Rotis Serif': true, 'Sabon': true, 'Scala': true,
|
|
'Seagull': true, 'Sistina': true, 'Souvenir': true,
|
|
'STIX': true, 'Stone Informal': true, 'Stone Serif': true,
|
|
'Sylfaen': true, 'Times': true, 'Trajan': true,
|
|
'Trinité': true, 'Trump Mediaeval': true, 'Utopia': true,
|
|
'Vale Type': true, 'Bitstream Vera': true, 'Vera Serif': true,
|
|
'Versailles': true, 'Wanted': true, 'Weiss': true,
|
|
'Wide Latin': true, 'Windsor': true, 'XITS': true
|
|
};
|
|
|
|
var symbolsFonts = {
|
|
'Dingbats': true, 'Symbol': true, 'ZapfDingbats': true
|
|
};
|
|
|
|
// Some characters, e.g. copyrightserif, mapped to the private use area and
|
|
// might not be displayed using standard fonts. Mapping/hacking well-known chars
|
|
// to the similar equivalents in the normal characters range.
|
|
function mapPrivateUseChars(code) {
|
|
switch (code) {
|
|
case 0xF8E9: // copyrightsans
|
|
case 0xF6D9: // copyrightserif
|
|
return 0x00A9; // copyright
|
|
default:
|
|
return code;
|
|
}
|
|
}
|
|
|
|
var FontLoader = {
|
|
loadingContext: {
|
|
pending: 0,
|
|
requests: [],
|
|
nextRequestId: 0
|
|
},
|
|
|
|
bind: function fontLoaderBind(fonts, callback) {
|
|
assert(!isWorker, 'bind() shall be called from main thread');
|
|
|
|
var rules = [], fontsToLoad = [];
|
|
for (var i = 0, ii = fonts.length; i < ii; i++) {
|
|
var font = fonts[i];
|
|
|
|
// Add the font to the DOM only once or skip if the font
|
|
// is already loaded.
|
|
if (font.attached || font.loading == false) {
|
|
continue;
|
|
}
|
|
font.attached = true;
|
|
|
|
var str = '';
|
|
var data = font.data;
|
|
if (data) {
|
|
var length = data.length;
|
|
for (var j = 0; j < length; j++)
|
|
str += String.fromCharCode(data[j]);
|
|
|
|
var rule = font.bindDOM(str);
|
|
if (rule) {
|
|
rules.push(rule);
|
|
fontsToLoad.push(font);
|
|
}
|
|
}
|
|
}
|
|
|
|
var request = FontLoader.queueLoadingCallback(callback);
|
|
if (rules.length > 0) {
|
|
FontLoader.prepareFontLoadEvent(rules, fontsToLoad, request);
|
|
} else {
|
|
request.complete();
|
|
}
|
|
},
|
|
|
|
queueLoadingCallback: function FontLoader_queueLoadingCallback(callback) {
|
|
function LoadLoader_completeRequest() {
|
|
assert(!request.end, 'completeRequest() cannot be called twice');
|
|
request.end = Date.now();
|
|
|
|
if (context.pending <= 1) {
|
|
// it's simple completion for one request
|
|
context.pending = 0;
|
|
context.requests.pop();
|
|
setTimeout(callback, 0);
|
|
return;
|
|
}
|
|
|
|
// calculating the load delay for all fonts and checking if all loaded
|
|
var totalTime = 0;
|
|
for (var i = 0, ii = context.requests.length; i < ii; i++) {
|
|
var otherRequest = context.requests[i];
|
|
if (!otherRequest.end)
|
|
return; // one more font to load, cancel the completion
|
|
totalTime += otherRequest.end - otherRequest.start;
|
|
}
|
|
var now = Date.now();
|
|
var startTime = context.requests[0].start;
|
|
var leftToWait = Math.max(totalTime - (now - startTime), 0);
|
|
context.timeout = setTimeout(function completeAllRequests() {
|
|
for (var i = 0, ii = context.requests.length; i < ii; i++) {
|
|
context.requests[i].callback();
|
|
}
|
|
context.pending = 0;
|
|
context.requests = [];
|
|
delete context.timeout;
|
|
}, leftToWait);
|
|
}
|
|
|
|
var context = FontLoader.loadingContext;
|
|
var requestId = 'pdfjs-font-loading-' + (context.nextRequestId++);
|
|
context.pending++;
|
|
var request = {
|
|
id: requestId,
|
|
complete: LoadLoader_completeRequest,
|
|
callback: callback,
|
|
started: Date.now()
|
|
};
|
|
context.requests.push(request);
|
|
if (context.timeout) {
|
|
// timeout for callbacks was set, removing that
|
|
clearTimeout(context.timeout);
|
|
delete context.timeout;
|
|
}
|
|
return request;
|
|
},
|
|
|
|
// Set things up so that at least one pdfjsFontLoad event is
|
|
// dispatched when all the @font-face |rules| for |fonts| have been
|
|
// loaded in a subdocument. It's expected that the load of |rules|
|
|
// has already started in this (outer) document, so that they should
|
|
// be ordered before the load in the subdocument.
|
|
prepareFontLoadEvent: function fontLoaderPrepareFontLoadEvent(rules,
|
|
fonts,
|
|
request) {
|
|
/** Hack begin */
|
|
// There's no event when a font has finished downloading so the
|
|
// following code is a dirty hack to 'guess' when a font is
|
|
// ready. This code will be obsoleted by Mozilla bug 471915.
|
|
//
|
|
// The only reliable way to know if a font is loaded in Gecko
|
|
// (at the moment) is document.onload in a document with
|
|
// a @font-face rule defined in a "static" stylesheet. We use a
|
|
// subdocument in an <iframe>, set up properly, to know when
|
|
// our @font-face rule was loaded. However, the subdocument and
|
|
// outer document can't share CSS rules, so the inner document
|
|
// is only part of the puzzle. The second piece is an invisible
|
|
// div created in order to force loading of the @font-face in
|
|
// the *outer* document. (The font still needs to be loaded for
|
|
// its metrics, for reflow). We create the div first for the
|
|
// outer document, then create the iframe. Unless something
|
|
// goes really wonkily, we expect the @font-face for the outer
|
|
// document to be processed before the inner. That's still
|
|
// fragile, but seems to work in practice.
|
|
//
|
|
// The postMessage() hackery was added to work around chrome bug
|
|
// 82402.
|
|
|
|
var names = [];
|
|
for (var i = 0, ii = fonts.length; i < ii; i++)
|
|
names.push(fonts[i].loadedName);
|
|
|
|
// Validate the names parameter -- the values can used to construct HTML.
|
|
if (!/^\w+$/.test(names.join(''))) {
|
|
error('Invalid font name(s): ' + names.join());
|
|
|
|
// Normally the error-function throws. But if a malicious code
|
|
// intercepts the function call then the return is needed.
|
|
return;
|
|
}
|
|
|
|
var div = document.createElement('div');
|
|
div.setAttribute('style',
|
|
'visibility: hidden;' +
|
|
'width: 10px; height: 10px;' +
|
|
'position: absolute; top: 0px; left: 0px;');
|
|
var html = '';
|
|
for (var i = 0, ii = names.length; i < ii; ++i) {
|
|
html += '<span style="font-family:' + names[i] + '">Hi</span>';
|
|
}
|
|
div.innerHTML = html;
|
|
document.body.appendChild(div);
|
|
|
|
var requestId = request.id;
|
|
window.addEventListener(
|
|
'message',
|
|
function fontLoaderMessage(e) {
|
|
if (e.data !== requestId)
|
|
return;
|
|
for (var i = 0, ii = fonts.length; i < ii; ++i) {
|
|
var font = fonts[i];
|
|
font.loading = false;
|
|
}
|
|
request.complete();
|
|
// cleanup
|
|
document.body.removeChild(frame);
|
|
window.removeEventListener('message', fontLoaderMessage, false);
|
|
},
|
|
false);
|
|
|
|
// XXX we should have a time-out here too, and maybe fire
|
|
// pdfjsFontLoadFailed?
|
|
var src = '<!DOCTYPE HTML><html><head><meta charset="utf-8">';
|
|
src += '<style type="text/css">';
|
|
for (var i = 0, ii = rules.length; i < ii; ++i) {
|
|
src += rules[i];
|
|
}
|
|
src += '</style>';
|
|
src += '<script type="application/javascript">';
|
|
src += ' window.onload = function fontLoaderOnload() {\n';
|
|
src += ' parent.postMessage("' + requestId + '", "*");\n';
|
|
src += ' }';
|
|
// Hack so the end script tag isn't counted if this is inline JS.
|
|
src += '</scr' + 'ipt></head><body>';
|
|
for (var i = 0, ii = names.length; i < ii; ++i) {
|
|
src += '<p style="font-family:\'' + names[i] + '\'">Hi</p>';
|
|
}
|
|
src += '</body></html>';
|
|
var frame = document.createElement('iframe');
|
|
frame.src = 'data:text/html,' + src;
|
|
frame.setAttribute('style',
|
|
'visibility: hidden;' +
|
|
'width: 10px; height: 10px;' +
|
|
'position: absolute; top: 0px; left: 0px;');
|
|
document.body.appendChild(frame);
|
|
/** Hack end */
|
|
}
|
|
};
|
|
|
|
var UnicodeRanges = [
|
|
{ 'begin': 0x0000, 'end': 0x007F }, // Basic Latin
|
|
{ 'begin': 0x0080, 'end': 0x00FF }, // Latin-1 Supplement
|
|
{ 'begin': 0x0100, 'end': 0x017F }, // Latin Extended-A
|
|
{ 'begin': 0x0180, 'end': 0x024F }, // Latin Extended-B
|
|
{ 'begin': 0x0250, 'end': 0x02AF }, // IPA Extensions
|
|
{ 'begin': 0x02B0, 'end': 0x02FF }, // Spacing Modifier Letters
|
|
{ 'begin': 0x0300, 'end': 0x036F }, // Combining Diacritical Marks
|
|
{ 'begin': 0x0370, 'end': 0x03FF }, // Greek and Coptic
|
|
{ 'begin': 0x2C80, 'end': 0x2CFF }, // Coptic
|
|
{ 'begin': 0x0400, 'end': 0x04FF }, // Cyrillic
|
|
{ 'begin': 0x0530, 'end': 0x058F }, // Armenian
|
|
{ 'begin': 0x0590, 'end': 0x05FF }, // Hebrew
|
|
{ 'begin': 0xA500, 'end': 0xA63F }, // Vai
|
|
{ 'begin': 0x0600, 'end': 0x06FF }, // Arabic
|
|
{ 'begin': 0x07C0, 'end': 0x07FF }, // NKo
|
|
{ 'begin': 0x0900, 'end': 0x097F }, // Devanagari
|
|
{ 'begin': 0x0980, 'end': 0x09FF }, // Bengali
|
|
{ 'begin': 0x0A00, 'end': 0x0A7F }, // Gurmukhi
|
|
{ 'begin': 0x0A80, 'end': 0x0AFF }, // Gujarati
|
|
{ 'begin': 0x0B00, 'end': 0x0B7F }, // Oriya
|
|
{ 'begin': 0x0B80, 'end': 0x0BFF }, // Tamil
|
|
{ 'begin': 0x0C00, 'end': 0x0C7F }, // Telugu
|
|
{ 'begin': 0x0C80, 'end': 0x0CFF }, // Kannada
|
|
{ 'begin': 0x0D00, 'end': 0x0D7F }, // Malayalam
|
|
{ 'begin': 0x0E00, 'end': 0x0E7F }, // Thai
|
|
{ 'begin': 0x0E80, 'end': 0x0EFF }, // Lao
|
|
{ 'begin': 0x10A0, 'end': 0x10FF }, // Georgian
|
|
{ 'begin': 0x1B00, 'end': 0x1B7F }, // Balinese
|
|
{ 'begin': 0x1100, 'end': 0x11FF }, // Hangul Jamo
|
|
{ 'begin': 0x1E00, 'end': 0x1EFF }, // Latin Extended Additional
|
|
{ 'begin': 0x1F00, 'end': 0x1FFF }, // Greek Extended
|
|
{ 'begin': 0x2000, 'end': 0x206F }, // General Punctuation
|
|
{ 'begin': 0x2070, 'end': 0x209F }, // Superscripts And Subscripts
|
|
{ 'begin': 0x20A0, 'end': 0x20CF }, // Currency Symbol
|
|
{ 'begin': 0x20D0, 'end': 0x20FF }, // Combining Diacritical Marks For Symbols
|
|
{ 'begin': 0x2100, 'end': 0x214F }, // Letterlike Symbols
|
|
{ 'begin': 0x2150, 'end': 0x218F }, // Number Forms
|
|
{ 'begin': 0x2190, 'end': 0x21FF }, // Arrows
|
|
{ 'begin': 0x2200, 'end': 0x22FF }, // Mathematical Operators
|
|
{ 'begin': 0x2300, 'end': 0x23FF }, // Miscellaneous Technical
|
|
{ 'begin': 0x2400, 'end': 0x243F }, // Control Pictures
|
|
{ 'begin': 0x2440, 'end': 0x245F }, // Optical Character Recognition
|
|
{ 'begin': 0x2460, 'end': 0x24FF }, // Enclosed Alphanumerics
|
|
{ 'begin': 0x2500, 'end': 0x257F }, // Box Drawing
|
|
{ 'begin': 0x2580, 'end': 0x259F }, // Block Elements
|
|
{ 'begin': 0x25A0, 'end': 0x25FF }, // Geometric Shapes
|
|
{ 'begin': 0x2600, 'end': 0x26FF }, // Miscellaneous Symbols
|
|
{ 'begin': 0x2700, 'end': 0x27BF }, // Dingbats
|
|
{ 'begin': 0x3000, 'end': 0x303F }, // CJK Symbols And Punctuation
|
|
{ 'begin': 0x3040, 'end': 0x309F }, // Hiragana
|
|
{ 'begin': 0x30A0, 'end': 0x30FF }, // Katakana
|
|
{ 'begin': 0x3100, 'end': 0x312F }, // Bopomofo
|
|
{ 'begin': 0x3130, 'end': 0x318F }, // Hangul Compatibility Jamo
|
|
{ 'begin': 0xA840, 'end': 0xA87F }, // Phags-pa
|
|
{ 'begin': 0x3200, 'end': 0x32FF }, // Enclosed CJK Letters And Months
|
|
{ 'begin': 0x3300, 'end': 0x33FF }, // CJK Compatibility
|
|
{ 'begin': 0xAC00, 'end': 0xD7AF }, // Hangul Syllables
|
|
{ 'begin': 0xD800, 'end': 0xDFFF }, // Non-Plane 0 *
|
|
{ 'begin': 0x10900, 'end': 0x1091F }, // Phoenicia
|
|
{ 'begin': 0x4E00, 'end': 0x9FFF }, // CJK Unified Ideographs
|
|
{ 'begin': 0xE000, 'end': 0xF8FF }, // Private Use Area (plane 0)
|
|
{ 'begin': 0x31C0, 'end': 0x31EF }, // CJK Strokes
|
|
{ 'begin': 0xFB00, 'end': 0xFB4F }, // Alphabetic Presentation Forms
|
|
{ 'begin': 0xFB50, 'end': 0xFDFF }, // Arabic Presentation Forms-A
|
|
{ 'begin': 0xFE20, 'end': 0xFE2F }, // Combining Half Marks
|
|
{ 'begin': 0xFE10, 'end': 0xFE1F }, // Vertical Forms
|
|
{ 'begin': 0xFE50, 'end': 0xFE6F }, // Small Form Variants
|
|
{ 'begin': 0xFE70, 'end': 0xFEFF }, // Arabic Presentation Forms-B
|
|
{ 'begin': 0xFF00, 'end': 0xFFEF }, // Halfwidth And Fullwidth Forms
|
|
{ 'begin': 0xFFF0, 'end': 0xFFFF }, // Specials
|
|
{ 'begin': 0x0F00, 'end': 0x0FFF }, // Tibetan
|
|
{ 'begin': 0x0700, 'end': 0x074F }, // Syriac
|
|
{ 'begin': 0x0780, 'end': 0x07BF }, // Thaana
|
|
{ 'begin': 0x0D80, 'end': 0x0DFF }, // Sinhala
|
|
{ 'begin': 0x1000, 'end': 0x109F }, // Myanmar
|
|
{ 'begin': 0x1200, 'end': 0x137F }, // Ethiopic
|
|
{ 'begin': 0x13A0, 'end': 0x13FF }, // Cherokee
|
|
{ 'begin': 0x1400, 'end': 0x167F }, // Unified Canadian Aboriginal Syllabics
|
|
{ 'begin': 0x1680, 'end': 0x169F }, // Ogham
|
|
{ 'begin': 0x16A0, 'end': 0x16FF }, // Runic
|
|
{ 'begin': 0x1780, 'end': 0x17FF }, // Khmer
|
|
{ 'begin': 0x1800, 'end': 0x18AF }, // Mongolian
|
|
{ 'begin': 0x2800, 'end': 0x28FF }, // Braille Patterns
|
|
{ 'begin': 0xA000, 'end': 0xA48F }, // Yi Syllables
|
|
{ 'begin': 0x1700, 'end': 0x171F }, // Tagalog
|
|
{ 'begin': 0x10300, 'end': 0x1032F }, // Old Italic
|
|
{ 'begin': 0x10330, 'end': 0x1034F }, // Gothic
|
|
{ 'begin': 0x10400, 'end': 0x1044F }, // Deseret
|
|
{ 'begin': 0x1D000, 'end': 0x1D0FF }, // Byzantine Musical Symbols
|
|
{ 'begin': 0x1D400, 'end': 0x1D7FF }, // Mathematical Alphanumeric Symbols
|
|
{ 'begin': 0xFF000, 'end': 0xFFFFD }, // Private Use (plane 15)
|
|
{ 'begin': 0xFE00, 'end': 0xFE0F }, // Variation Selectors
|
|
{ 'begin': 0xE0000, 'end': 0xE007F }, // Tags
|
|
{ 'begin': 0x1900, 'end': 0x194F }, // Limbu
|
|
{ 'begin': 0x1950, 'end': 0x197F }, // Tai Le
|
|
{ 'begin': 0x1980, 'end': 0x19DF }, // New Tai Lue
|
|
{ 'begin': 0x1A00, 'end': 0x1A1F }, // Buginese
|
|
{ 'begin': 0x2C00, 'end': 0x2C5F }, // Glagolitic
|
|
{ 'begin': 0x2D30, 'end': 0x2D7F }, // Tifinagh
|
|
{ 'begin': 0x4DC0, 'end': 0x4DFF }, // Yijing Hexagram Symbols
|
|
{ 'begin': 0xA800, 'end': 0xA82F }, // Syloti Nagri
|
|
{ 'begin': 0x10000, 'end': 0x1007F }, // Linear B Syllabary
|
|
{ 'begin': 0x10140, 'end': 0x1018F }, // Ancient Greek Numbers
|
|
{ 'begin': 0x10380, 'end': 0x1039F }, // Ugaritic
|
|
{ 'begin': 0x103A0, 'end': 0x103DF }, // Old Persian
|
|
{ 'begin': 0x10450, 'end': 0x1047F }, // Shavian
|
|
{ 'begin': 0x10480, 'end': 0x104AF }, // Osmanya
|
|
{ 'begin': 0x10800, 'end': 0x1083F }, // Cypriot Syllabary
|
|
{ 'begin': 0x10A00, 'end': 0x10A5F }, // Kharoshthi
|
|
{ 'begin': 0x1D300, 'end': 0x1D35F }, // Tai Xuan Jing Symbols
|
|
{ 'begin': 0x12000, 'end': 0x123FF }, // Cuneiform
|
|
{ 'begin': 0x1D360, 'end': 0x1D37F }, // Counting Rod Numerals
|
|
{ 'begin': 0x1B80, 'end': 0x1BBF }, // Sundanese
|
|
{ 'begin': 0x1C00, 'end': 0x1C4F }, // Lepcha
|
|
{ 'begin': 0x1C50, 'end': 0x1C7F }, // Ol Chiki
|
|
{ 'begin': 0xA880, 'end': 0xA8DF }, // Saurashtra
|
|
{ 'begin': 0xA900, 'end': 0xA92F }, // Kayah Li
|
|
{ 'begin': 0xA930, 'end': 0xA95F }, // Rejang
|
|
{ 'begin': 0xAA00, 'end': 0xAA5F }, // Cham
|
|
{ 'begin': 0x10190, 'end': 0x101CF }, // Ancient Symbols
|
|
{ 'begin': 0x101D0, 'end': 0x101FF }, // Phaistos Disc
|
|
{ 'begin': 0x102A0, 'end': 0x102DF }, // Carian
|
|
{ 'begin': 0x1F030, 'end': 0x1F09F } // Domino Tiles
|
|
];
|
|
|
|
var MacStandardGlyphOrdering = [
|
|
'.notdef', '.null', 'nonmarkingreturn', 'space', 'exclam', 'quotedbl',
|
|
'numbersign', 'dollar', 'percent', 'ampersand', 'quotesingle', 'parenleft',
|
|
'parenright', 'asterisk', 'plus', 'comma', 'hyphen', 'period', 'slash',
|
|
'zero', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight',
|
|
'nine', 'colon', 'semicolon', 'less', 'equal', 'greater', 'question', 'at',
|
|
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
|
|
'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'bracketleft',
|
|
'backslash', 'bracketright', 'asciicircum', 'underscore', 'grave', 'a', 'b',
|
|
'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q',
|
|
'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'braceleft', 'bar', 'braceright',
|
|
'asciitilde', 'Adieresis', 'Aring', 'Ccedilla', 'Eacute', 'Ntilde',
|
|
'Odieresis', 'Udieresis', 'aacute', 'agrave', 'acircumflex', 'adieresis',
|
|
'atilde', 'aring', 'ccedilla', 'eacute', 'egrave', 'ecircumflex', 'edieresis',
|
|
'iacute', 'igrave', 'icircumflex', 'idieresis', 'ntilde', 'oacute', 'ograve',
|
|
'ocircumflex', 'odieresis', 'otilde', 'uacute', 'ugrave', 'ucircumflex',
|
|
'udieresis', 'dagger', 'degree', 'cent', 'sterling', 'section', 'bullet',
|
|
'paragraph', 'germandbls', 'registered', 'copyright', 'trademark', 'acute',
|
|
'dieresis', 'notequal', 'AE', 'Oslash', 'infinity', 'plusminus', 'lessequal',
|
|
'greaterequal', 'yen', 'mu', 'partialdiff', 'summation', 'product', 'pi',
|
|
'integral', 'ordfeminine', 'ordmasculine', 'Omega', 'ae', 'oslash',
|
|
'questiondown', 'exclamdown', 'logicalnot', 'radical', 'florin',
|
|
'approxequal', 'Delta', 'guillemotleft', 'guillemotright', 'ellipsis',
|
|
'nonbreakingspace', 'Agrave', 'Atilde', 'Otilde', 'OE', 'oe', 'endash',
|
|
'emdash', 'quotedblleft', 'quotedblright', 'quoteleft', 'quoteright',
|
|
'divide', 'lozenge', 'ydieresis', 'Ydieresis', 'fraction', 'currency',
|
|
'guilsinglleft', 'guilsinglright', 'fi', 'fl', 'daggerdbl', 'periodcentered',
|
|
'quotesinglbase', 'quotedblbase', 'perthousand', 'Acircumflex',
|
|
'Ecircumflex', 'Aacute', 'Edieresis', 'Egrave', 'Iacute', 'Icircumflex',
|
|
'Idieresis', 'Igrave', 'Oacute', 'Ocircumflex', 'apple', 'Ograve', 'Uacute',
|
|
'Ucircumflex', 'Ugrave', 'dotlessi', 'circumflex', 'tilde', 'macron',
|
|
'breve', 'dotaccent', 'ring', 'cedilla', 'hungarumlaut', 'ogonek', 'caron',
|
|
'Lslash', 'lslash', 'Scaron', 'scaron', 'Zcaron', 'zcaron', 'brokenbar',
|
|
'Eth', 'eth', 'Yacute', 'yacute', 'Thorn', 'thorn', 'minus', 'multiply',
|
|
'onesuperior', 'twosuperior', 'threesuperior', 'onehalf', 'onequarter',
|
|
'threequarters', 'franc', 'Gbreve', 'gbreve', 'Idotaccent', 'Scedilla',
|
|
'scedilla', 'Cacute', 'cacute', 'Ccaron', 'ccaron', 'dcroat'];
|
|
|
|
function getUnicodeRangeFor(value) {
|
|
for (var i = 0, ii = UnicodeRanges.length; i < ii; i++) {
|
|
var range = UnicodeRanges[i];
|
|
if (value >= range.begin && value < range.end)
|
|
return i;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
function isRTLRangeFor(value) {
|
|
var range = UnicodeRanges[13];
|
|
if (value >= range.begin && value < range.end)
|
|
return true;
|
|
range = UnicodeRanges[11];
|
|
if (value >= range.begin && value < range.end)
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
function isSpecialUnicode(unicode) {
|
|
return (unicode <= 0x1F || (unicode >= 127 && unicode < kSizeOfGlyphArea)) ||
|
|
(unicode >= kCmapGlyphOffset &&
|
|
unicode < kCmapGlyphOffset + kSizeOfGlyphArea);
|
|
}
|
|
|
|
// The normalization table is obtained by filtering the Unicode characters
|
|
// database with <compat> entries.
|
|
var NormalizedUnicodes = {
|
|
'\u00A8': '\u0020\u0308',
|
|
'\u00AF': '\u0020\u0304',
|
|
'\u00B4': '\u0020\u0301',
|
|
'\u00B5': '\u03BC',
|
|
'\u00B8': '\u0020\u0327',
|
|
'\u0132': '\u0049\u004A',
|
|
'\u0133': '\u0069\u006A',
|
|
'\u013F': '\u004C\u00B7',
|
|
'\u0140': '\u006C\u00B7',
|
|
'\u0149': '\u02BC\u006E',
|
|
'\u017F': '\u0073',
|
|
'\u01C4': '\u0044\u017D',
|
|
'\u01C5': '\u0044\u017E',
|
|
'\u01C6': '\u0064\u017E',
|
|
'\u01C7': '\u004C\u004A',
|
|
'\u01C8': '\u004C\u006A',
|
|
'\u01C9': '\u006C\u006A',
|
|
'\u01CA': '\u004E\u004A',
|
|
'\u01CB': '\u004E\u006A',
|
|
'\u01CC': '\u006E\u006A',
|
|
'\u01F1': '\u0044\u005A',
|
|
'\u01F2': '\u0044\u007A',
|
|
'\u01F3': '\u0064\u007A',
|
|
'\u02D8': '\u0020\u0306',
|
|
'\u02D9': '\u0020\u0307',
|
|
'\u02DA': '\u0020\u030A',
|
|
'\u02DB': '\u0020\u0328',
|
|
'\u02DC': '\u0020\u0303',
|
|
'\u02DD': '\u0020\u030B',
|
|
'\u037A': '\u0020\u0345',
|
|
'\u0384': '\u0020\u0301',
|
|
'\u03D0': '\u03B2',
|
|
'\u03D1': '\u03B8',
|
|
'\u03D2': '\u03A5',
|
|
'\u03D5': '\u03C6',
|
|
'\u03D6': '\u03C0',
|
|
'\u03F0': '\u03BA',
|
|
'\u03F1': '\u03C1',
|
|
'\u03F2': '\u03C2',
|
|
'\u03F4': '\u0398',
|
|
'\u03F5': '\u03B5',
|
|
'\u03F9': '\u03A3',
|
|
'\u0587': '\u0565\u0582',
|
|
'\u0675': '\u0627\u0674',
|
|
'\u0676': '\u0648\u0674',
|
|
'\u0677': '\u06C7\u0674',
|
|
'\u0678': '\u064A\u0674',
|
|
'\u0E33': '\u0E4D\u0E32',
|
|
'\u0EB3': '\u0ECD\u0EB2',
|
|
'\u0EDC': '\u0EAB\u0E99',
|
|
'\u0EDD': '\u0EAB\u0EA1',
|
|
'\u0F77': '\u0FB2\u0F81',
|
|
'\u0F79': '\u0FB3\u0F81',
|
|
'\u1E9A': '\u0061\u02BE',
|
|
'\u1FBD': '\u0020\u0313',
|
|
'\u1FBF': '\u0020\u0313',
|
|
'\u1FC0': '\u0020\u0342',
|
|
'\u1FFE': '\u0020\u0314',
|
|
'\u2002': '\u0020',
|
|
'\u2003': '\u0020',
|
|
'\u2004': '\u0020',
|
|
'\u2005': '\u0020',
|
|
'\u2006': '\u0020',
|
|
'\u2008': '\u0020',
|
|
'\u2009': '\u0020',
|
|
'\u200A': '\u0020',
|
|
'\u2017': '\u0020\u0333',
|
|
'\u2024': '\u002E',
|
|
'\u2025': '\u002E\u002E',
|
|
'\u2026': '\u002E\u002E\u002E',
|
|
'\u2033': '\u2032\u2032',
|
|
'\u2034': '\u2032\u2032\u2032',
|
|
'\u2036': '\u2035\u2035',
|
|
'\u2037': '\u2035\u2035\u2035',
|
|
'\u203C': '\u0021\u0021',
|
|
'\u203E': '\u0020\u0305',
|
|
'\u2047': '\u003F\u003F',
|
|
'\u2048': '\u003F\u0021',
|
|
'\u2049': '\u0021\u003F',
|
|
'\u2057': '\u2032\u2032\u2032\u2032',
|
|
'\u205F': '\u0020',
|
|
'\u20A8': '\u0052\u0073',
|
|
'\u2100': '\u0061\u002F\u0063',
|
|
'\u2101': '\u0061\u002F\u0073',
|
|
'\u2103': '\u00B0\u0043',
|
|
'\u2105': '\u0063\u002F\u006F',
|
|
'\u2106': '\u0063\u002F\u0075',
|
|
'\u2107': '\u0190',
|
|
'\u2109': '\u00B0\u0046',
|
|
'\u2116': '\u004E\u006F',
|
|
'\u2121': '\u0054\u0045\u004C',
|
|
'\u2135': '\u05D0',
|
|
'\u2136': '\u05D1',
|
|
'\u2137': '\u05D2',
|
|
'\u2138': '\u05D3',
|
|
'\u213B': '\u0046\u0041\u0058',
|
|
'\u2160': '\u0049',
|
|
'\u2161': '\u0049\u0049',
|
|
'\u2162': '\u0049\u0049\u0049',
|
|
'\u2163': '\u0049\u0056',
|
|
'\u2164': '\u0056',
|
|
'\u2165': '\u0056\u0049',
|
|
'\u2166': '\u0056\u0049\u0049',
|
|
'\u2167': '\u0056\u0049\u0049\u0049',
|
|
'\u2168': '\u0049\u0058',
|
|
'\u2169': '\u0058',
|
|
'\u216A': '\u0058\u0049',
|
|
'\u216B': '\u0058\u0049\u0049',
|
|
'\u216C': '\u004C',
|
|
'\u216D': '\u0043',
|
|
'\u216E': '\u0044',
|
|
'\u216F': '\u004D',
|
|
'\u2170': '\u0069',
|
|
'\u2171': '\u0069\u0069',
|
|
'\u2172': '\u0069\u0069\u0069',
|
|
'\u2173': '\u0069\u0076',
|
|
'\u2174': '\u0076',
|
|
'\u2175': '\u0076\u0069',
|
|
'\u2176': '\u0076\u0069\u0069',
|
|
'\u2177': '\u0076\u0069\u0069\u0069',
|
|
'\u2178': '\u0069\u0078',
|
|
'\u2179': '\u0078',
|
|
'\u217A': '\u0078\u0069',
|
|
'\u217B': '\u0078\u0069\u0069',
|
|
'\u217C': '\u006C',
|
|
'\u217D': '\u0063',
|
|
'\u217E': '\u0064',
|
|
'\u217F': '\u006D',
|
|
'\u222C': '\u222B\u222B',
|
|
'\u222D': '\u222B\u222B\u222B',
|
|
'\u222F': '\u222E\u222E',
|
|
'\u2230': '\u222E\u222E\u222E',
|
|
'\u2474': '\u0028\u0031\u0029',
|
|
'\u2475': '\u0028\u0032\u0029',
|
|
'\u2476': '\u0028\u0033\u0029',
|
|
'\u2477': '\u0028\u0034\u0029',
|
|
'\u2478': '\u0028\u0035\u0029',
|
|
'\u2479': '\u0028\u0036\u0029',
|
|
'\u247A': '\u0028\u0037\u0029',
|
|
'\u247B': '\u0028\u0038\u0029',
|
|
'\u247C': '\u0028\u0039\u0029',
|
|
'\u247D': '\u0028\u0031\u0030\u0029',
|
|
'\u247E': '\u0028\u0031\u0031\u0029',
|
|
'\u247F': '\u0028\u0031\u0032\u0029',
|
|
'\u2480': '\u0028\u0031\u0033\u0029',
|
|
'\u2481': '\u0028\u0031\u0034\u0029',
|
|
'\u2482': '\u0028\u0031\u0035\u0029',
|
|
'\u2483': '\u0028\u0031\u0036\u0029',
|
|
'\u2484': '\u0028\u0031\u0037\u0029',
|
|
'\u2485': '\u0028\u0031\u0038\u0029',
|
|
'\u2486': '\u0028\u0031\u0039\u0029',
|
|
'\u2487': '\u0028\u0032\u0030\u0029',
|
|
'\u2488': '\u0031\u002E',
|
|
'\u2489': '\u0032\u002E',
|
|
'\u248A': '\u0033\u002E',
|
|
'\u248B': '\u0034\u002E',
|
|
'\u248C': '\u0035\u002E',
|
|
'\u248D': '\u0036\u002E',
|
|
'\u248E': '\u0037\u002E',
|
|
'\u248F': '\u0038\u002E',
|
|
'\u2490': '\u0039\u002E',
|
|
'\u2491': '\u0031\u0030\u002E',
|
|
'\u2492': '\u0031\u0031\u002E',
|
|
'\u2493': '\u0031\u0032\u002E',
|
|
'\u2494': '\u0031\u0033\u002E',
|
|
'\u2495': '\u0031\u0034\u002E',
|
|
'\u2496': '\u0031\u0035\u002E',
|
|
'\u2497': '\u0031\u0036\u002E',
|
|
'\u2498': '\u0031\u0037\u002E',
|
|
'\u2499': '\u0031\u0038\u002E',
|
|
'\u249A': '\u0031\u0039\u002E',
|
|
'\u249B': '\u0032\u0030\u002E',
|
|
'\u249C': '\u0028\u0061\u0029',
|
|
'\u249D': '\u0028\u0062\u0029',
|
|
'\u249E': '\u0028\u0063\u0029',
|
|
'\u249F': '\u0028\u0064\u0029',
|
|
'\u24A0': '\u0028\u0065\u0029',
|
|
'\u24A1': '\u0028\u0066\u0029',
|
|
'\u24A2': '\u0028\u0067\u0029',
|
|
'\u24A3': '\u0028\u0068\u0029',
|
|
'\u24A4': '\u0028\u0069\u0029',
|
|
'\u24A5': '\u0028\u006A\u0029',
|
|
'\u24A6': '\u0028\u006B\u0029',
|
|
'\u24A7': '\u0028\u006C\u0029',
|
|
'\u24A8': '\u0028\u006D\u0029',
|
|
'\u24A9': '\u0028\u006E\u0029',
|
|
'\u24AA': '\u0028\u006F\u0029',
|
|
'\u24AB': '\u0028\u0070\u0029',
|
|
'\u24AC': '\u0028\u0071\u0029',
|
|
'\u24AD': '\u0028\u0072\u0029',
|
|
'\u24AE': '\u0028\u0073\u0029',
|
|
'\u24AF': '\u0028\u0074\u0029',
|
|
'\u24B0': '\u0028\u0075\u0029',
|
|
'\u24B1': '\u0028\u0076\u0029',
|
|
'\u24B2': '\u0028\u0077\u0029',
|
|
'\u24B3': '\u0028\u0078\u0029',
|
|
'\u24B4': '\u0028\u0079\u0029',
|
|
'\u24B5': '\u0028\u007A\u0029',
|
|
'\u2A0C': '\u222B\u222B\u222B\u222B',
|
|
'\u2A74': '\u003A\u003A\u003D',
|
|
'\u2A75': '\u003D\u003D',
|
|
'\u2A76': '\u003D\u003D\u003D',
|
|
'\u2E9F': '\u6BCD',
|
|
'\u2EF3': '\u9F9F',
|
|
'\u2F00': '\u4E00',
|
|
'\u2F01': '\u4E28',
|
|
'\u2F02': '\u4E36',
|
|
'\u2F03': '\u4E3F',
|
|
'\u2F04': '\u4E59',
|
|
'\u2F05': '\u4E85',
|
|
'\u2F06': '\u4E8C',
|
|
'\u2F07': '\u4EA0',
|
|
'\u2F08': '\u4EBA',
|
|
'\u2F09': '\u513F',
|
|
'\u2F0A': '\u5165',
|
|
'\u2F0B': '\u516B',
|
|
'\u2F0C': '\u5182',
|
|
'\u2F0D': '\u5196',
|
|
'\u2F0E': '\u51AB',
|
|
'\u2F0F': '\u51E0',
|
|
'\u2F10': '\u51F5',
|
|
'\u2F11': '\u5200',
|
|
'\u2F12': '\u529B',
|
|
'\u2F13': '\u52F9',
|
|
'\u2F14': '\u5315',
|
|
'\u2F15': '\u531A',
|
|
'\u2F16': '\u5338',
|
|
'\u2F17': '\u5341',
|
|
'\u2F18': '\u535C',
|
|
'\u2F19': '\u5369',
|
|
'\u2F1A': '\u5382',
|
|
'\u2F1B': '\u53B6',
|
|
'\u2F1C': '\u53C8',
|
|
'\u2F1D': '\u53E3',
|
|
'\u2F1E': '\u56D7',
|
|
'\u2F1F': '\u571F',
|
|
'\u2F20': '\u58EB',
|
|
'\u2F21': '\u5902',
|
|
'\u2F22': '\u590A',
|
|
'\u2F23': '\u5915',
|
|
'\u2F24': '\u5927',
|
|
'\u2F25': '\u5973',
|
|
'\u2F26': '\u5B50',
|
|
'\u2F27': '\u5B80',
|
|
'\u2F28': '\u5BF8',
|
|
'\u2F29': '\u5C0F',
|
|
'\u2F2A': '\u5C22',
|
|
'\u2F2B': '\u5C38',
|
|
'\u2F2C': '\u5C6E',
|
|
'\u2F2D': '\u5C71',
|
|
'\u2F2E': '\u5DDB',
|
|
'\u2F2F': '\u5DE5',
|
|
'\u2F30': '\u5DF1',
|
|
'\u2F31': '\u5DFE',
|
|
'\u2F32': '\u5E72',
|
|
'\u2F33': '\u5E7A',
|
|
'\u2F34': '\u5E7F',
|
|
'\u2F35': '\u5EF4',
|
|
'\u2F36': '\u5EFE',
|
|
'\u2F37': '\u5F0B',
|
|
'\u2F38': '\u5F13',
|
|
'\u2F39': '\u5F50',
|
|
'\u2F3A': '\u5F61',
|
|
'\u2F3B': '\u5F73',
|
|
'\u2F3C': '\u5FC3',
|
|
'\u2F3D': '\u6208',
|
|
'\u2F3E': '\u6236',
|
|
'\u2F3F': '\u624B',
|
|
'\u2F40': '\u652F',
|
|
'\u2F41': '\u6534',
|
|
'\u2F42': '\u6587',
|
|
'\u2F43': '\u6597',
|
|
'\u2F44': '\u65A4',
|
|
'\u2F45': '\u65B9',
|
|
'\u2F46': '\u65E0',
|
|
'\u2F47': '\u65E5',
|
|
'\u2F48': '\u66F0',
|
|
'\u2F49': '\u6708',
|
|
'\u2F4A': '\u6728',
|
|
'\u2F4B': '\u6B20',
|
|
'\u2F4C': '\u6B62',
|
|
'\u2F4D': '\u6B79',
|
|
'\u2F4E': '\u6BB3',
|
|
'\u2F4F': '\u6BCB',
|
|
'\u2F50': '\u6BD4',
|
|
'\u2F51': '\u6BDB',
|
|
'\u2F52': '\u6C0F',
|
|
'\u2F53': '\u6C14',
|
|
'\u2F54': '\u6C34',
|
|
'\u2F55': '\u706B',
|
|
'\u2F56': '\u722A',
|
|
'\u2F57': '\u7236',
|
|
'\u2F58': '\u723B',
|
|
'\u2F59': '\u723F',
|
|
'\u2F5A': '\u7247',
|
|
'\u2F5B': '\u7259',
|
|
'\u2F5C': '\u725B',
|
|
'\u2F5D': '\u72AC',
|
|
'\u2F5E': '\u7384',
|
|
'\u2F5F': '\u7389',
|
|
'\u2F60': '\u74DC',
|
|
'\u2F61': '\u74E6',
|
|
'\u2F62': '\u7518',
|
|
'\u2F63': '\u751F',
|
|
'\u2F64': '\u7528',
|
|
'\u2F65': '\u7530',
|
|
'\u2F66': '\u758B',
|
|
'\u2F67': '\u7592',
|
|
'\u2F68': '\u7676',
|
|
'\u2F69': '\u767D',
|
|
'\u2F6A': '\u76AE',
|
|
'\u2F6B': '\u76BF',
|
|
'\u2F6C': '\u76EE',
|
|
'\u2F6D': '\u77DB',
|
|
'\u2F6E': '\u77E2',
|
|
'\u2F6F': '\u77F3',
|
|
'\u2F70': '\u793A',
|
|
'\u2F71': '\u79B8',
|
|
'\u2F72': '\u79BE',
|
|
'\u2F73': '\u7A74',
|
|
'\u2F74': '\u7ACB',
|
|
'\u2F75': '\u7AF9',
|
|
'\u2F76': '\u7C73',
|
|
'\u2F77': '\u7CF8',
|
|
'\u2F78': '\u7F36',
|
|
'\u2F79': '\u7F51',
|
|
'\u2F7A': '\u7F8A',
|
|
'\u2F7B': '\u7FBD',
|
|
'\u2F7C': '\u8001',
|
|
'\u2F7D': '\u800C',
|
|
'\u2F7E': '\u8012',
|
|
'\u2F7F': '\u8033',
|
|
'\u2F80': '\u807F',
|
|
'\u2F81': '\u8089',
|
|
'\u2F82': '\u81E3',
|
|
'\u2F83': '\u81EA',
|
|
'\u2F84': '\u81F3',
|
|
'\u2F85': '\u81FC',
|
|
'\u2F86': '\u820C',
|
|
'\u2F87': '\u821B',
|
|
'\u2F88': '\u821F',
|
|
'\u2F89': '\u826E',
|
|
'\u2F8A': '\u8272',
|
|
'\u2F8B': '\u8278',
|
|
'\u2F8C': '\u864D',
|
|
'\u2F8D': '\u866B',
|
|
'\u2F8E': '\u8840',
|
|
'\u2F8F': '\u884C',
|
|
'\u2F90': '\u8863',
|
|
'\u2F91': '\u897E',
|
|
'\u2F92': '\u898B',
|
|
'\u2F93': '\u89D2',
|
|
'\u2F94': '\u8A00',
|
|
'\u2F95': '\u8C37',
|
|
'\u2F96': '\u8C46',
|
|
'\u2F97': '\u8C55',
|
|
'\u2F98': '\u8C78',
|
|
'\u2F99': '\u8C9D',
|
|
'\u2F9A': '\u8D64',
|
|
'\u2F9B': '\u8D70',
|
|
'\u2F9C': '\u8DB3',
|
|
'\u2F9D': '\u8EAB',
|
|
'\u2F9E': '\u8ECA',
|
|
'\u2F9F': '\u8F9B',
|
|
'\u2FA0': '\u8FB0',
|
|
'\u2FA1': '\u8FB5',
|
|
'\u2FA2': '\u9091',
|
|
'\u2FA3': '\u9149',
|
|
'\u2FA4': '\u91C6',
|
|
'\u2FA5': '\u91CC',
|
|
'\u2FA6': '\u91D1',
|
|
'\u2FA7': '\u9577',
|
|
'\u2FA8': '\u9580',
|
|
'\u2FA9': '\u961C',
|
|
'\u2FAA': '\u96B6',
|
|
'\u2FAB': '\u96B9',
|
|
'\u2FAC': '\u96E8',
|
|
'\u2FAD': '\u9751',
|
|
'\u2FAE': '\u975E',
|
|
'\u2FAF': '\u9762',
|
|
'\u2FB0': '\u9769',
|
|
'\u2FB1': '\u97CB',
|
|
'\u2FB2': '\u97ED',
|
|
'\u2FB3': '\u97F3',
|
|
'\u2FB4': '\u9801',
|
|
'\u2FB5': '\u98A8',
|
|
'\u2FB6': '\u98DB',
|
|
'\u2FB7': '\u98DF',
|
|
'\u2FB8': '\u9996',
|
|
'\u2FB9': '\u9999',
|
|
'\u2FBA': '\u99AC',
|
|
'\u2FBB': '\u9AA8',
|
|
'\u2FBC': '\u9AD8',
|
|
'\u2FBD': '\u9ADF',
|
|
'\u2FBE': '\u9B25',
|
|
'\u2FBF': '\u9B2F',
|
|
'\u2FC0': '\u9B32',
|
|
'\u2FC1': '\u9B3C',
|
|
'\u2FC2': '\u9B5A',
|
|
'\u2FC3': '\u9CE5',
|
|
'\u2FC4': '\u9E75',
|
|
'\u2FC5': '\u9E7F',
|
|
'\u2FC6': '\u9EA5',
|
|
'\u2FC7': '\u9EBB',
|
|
'\u2FC8': '\u9EC3',
|
|
'\u2FC9': '\u9ECD',
|
|
'\u2FCA': '\u9ED1',
|
|
'\u2FCB': '\u9EF9',
|
|
'\u2FCC': '\u9EFD',
|
|
'\u2FCD': '\u9F0E',
|
|
'\u2FCE': '\u9F13',
|
|
'\u2FCF': '\u9F20',
|
|
'\u2FD0': '\u9F3B',
|
|
'\u2FD1': '\u9F4A',
|
|
'\u2FD2': '\u9F52',
|
|
'\u2FD3': '\u9F8D',
|
|
'\u2FD4': '\u9F9C',
|
|
'\u2FD5': '\u9FA0',
|
|
'\u3036': '\u3012',
|
|
'\u3038': '\u5341',
|
|
'\u3039': '\u5344',
|
|
'\u303A': '\u5345',
|
|
'\u309B': '\u0020\u3099',
|
|
'\u309C': '\u0020\u309A',
|
|
'\u3131': '\u1100',
|
|
'\u3132': '\u1101',
|
|
'\u3133': '\u11AA',
|
|
'\u3134': '\u1102',
|
|
'\u3135': '\u11AC',
|
|
'\u3136': '\u11AD',
|
|
'\u3137': '\u1103',
|
|
'\u3138': '\u1104',
|
|
'\u3139': '\u1105',
|
|
'\u313A': '\u11B0',
|
|
'\u313B': '\u11B1',
|
|
'\u313C': '\u11B2',
|
|
'\u313D': '\u11B3',
|
|
'\u313E': '\u11B4',
|
|
'\u313F': '\u11B5',
|
|
'\u3140': '\u111A',
|
|
'\u3141': '\u1106',
|
|
'\u3142': '\u1107',
|
|
'\u3143': '\u1108',
|
|
'\u3144': '\u1121',
|
|
'\u3145': '\u1109',
|
|
'\u3146': '\u110A',
|
|
'\u3147': '\u110B',
|
|
'\u3148': '\u110C',
|
|
'\u3149': '\u110D',
|
|
'\u314A': '\u110E',
|
|
'\u314B': '\u110F',
|
|
'\u314C': '\u1110',
|
|
'\u314D': '\u1111',
|
|
'\u314E': '\u1112',
|
|
'\u314F': '\u1161',
|
|
'\u3150': '\u1162',
|
|
'\u3151': '\u1163',
|
|
'\u3152': '\u1164',
|
|
'\u3153': '\u1165',
|
|
'\u3154': '\u1166',
|
|
'\u3155': '\u1167',
|
|
'\u3156': '\u1168',
|
|
'\u3157': '\u1169',
|
|
'\u3158': '\u116A',
|
|
'\u3159': '\u116B',
|
|
'\u315A': '\u116C',
|
|
'\u315B': '\u116D',
|
|
'\u315C': '\u116E',
|
|
'\u315D': '\u116F',
|
|
'\u315E': '\u1170',
|
|
'\u315F': '\u1171',
|
|
'\u3160': '\u1172',
|
|
'\u3161': '\u1173',
|
|
'\u3162': '\u1174',
|
|
'\u3163': '\u1175',
|
|
'\u3164': '\u1160',
|
|
'\u3165': '\u1114',
|
|
'\u3166': '\u1115',
|
|
'\u3167': '\u11C7',
|
|
'\u3168': '\u11C8',
|
|
'\u3169': '\u11CC',
|
|
'\u316A': '\u11CE',
|
|
'\u316B': '\u11D3',
|
|
'\u316C': '\u11D7',
|
|
'\u316D': '\u11D9',
|
|
'\u316E': '\u111C',
|
|
'\u316F': '\u11DD',
|
|
'\u3170': '\u11DF',
|
|
'\u3171': '\u111D',
|
|
'\u3172': '\u111E',
|
|
'\u3173': '\u1120',
|
|
'\u3174': '\u1122',
|
|
'\u3175': '\u1123',
|
|
'\u3176': '\u1127',
|
|
'\u3177': '\u1129',
|
|
'\u3178': '\u112B',
|
|
'\u3179': '\u112C',
|
|
'\u317A': '\u112D',
|
|
'\u317B': '\u112E',
|
|
'\u317C': '\u112F',
|
|
'\u317D': '\u1132',
|
|
'\u317E': '\u1136',
|
|
'\u317F': '\u1140',
|
|
'\u3180': '\u1147',
|
|
'\u3181': '\u114C',
|
|
'\u3182': '\u11F1',
|
|
'\u3183': '\u11F2',
|
|
'\u3184': '\u1157',
|
|
'\u3185': '\u1158',
|
|
'\u3186': '\u1159',
|
|
'\u3187': '\u1184',
|
|
'\u3188': '\u1185',
|
|
'\u3189': '\u1188',
|
|
'\u318A': '\u1191',
|
|
'\u318B': '\u1192',
|
|
'\u318C': '\u1194',
|
|
'\u318D': '\u119E',
|
|
'\u318E': '\u11A1',
|
|
'\u3200': '\u0028\u1100\u0029',
|
|
'\u3201': '\u0028\u1102\u0029',
|
|
'\u3202': '\u0028\u1103\u0029',
|
|
'\u3203': '\u0028\u1105\u0029',
|
|
'\u3204': '\u0028\u1106\u0029',
|
|
'\u3205': '\u0028\u1107\u0029',
|
|
'\u3206': '\u0028\u1109\u0029',
|
|
'\u3207': '\u0028\u110B\u0029',
|
|
'\u3208': '\u0028\u110C\u0029',
|
|
'\u3209': '\u0028\u110E\u0029',
|
|
'\u320A': '\u0028\u110F\u0029',
|
|
'\u320B': '\u0028\u1110\u0029',
|
|
'\u320C': '\u0028\u1111\u0029',
|
|
'\u320D': '\u0028\u1112\u0029',
|
|
'\u320E': '\u0028\u1100\u1161\u0029',
|
|
'\u320F': '\u0028\u1102\u1161\u0029',
|
|
'\u3210': '\u0028\u1103\u1161\u0029',
|
|
'\u3211': '\u0028\u1105\u1161\u0029',
|
|
'\u3212': '\u0028\u1106\u1161\u0029',
|
|
'\u3213': '\u0028\u1107\u1161\u0029',
|
|
'\u3214': '\u0028\u1109\u1161\u0029',
|
|
'\u3215': '\u0028\u110B\u1161\u0029',
|
|
'\u3216': '\u0028\u110C\u1161\u0029',
|
|
'\u3217': '\u0028\u110E\u1161\u0029',
|
|
'\u3218': '\u0028\u110F\u1161\u0029',
|
|
'\u3219': '\u0028\u1110\u1161\u0029',
|
|
'\u321A': '\u0028\u1111\u1161\u0029',
|
|
'\u321B': '\u0028\u1112\u1161\u0029',
|
|
'\u321C': '\u0028\u110C\u116E\u0029',
|
|
'\u321D': '\u0028\u110B\u1169\u110C\u1165\u11AB\u0029',
|
|
'\u321E': '\u0028\u110B\u1169\u1112\u116E\u0029',
|
|
'\u3220': '\u0028\u4E00\u0029',
|
|
'\u3221': '\u0028\u4E8C\u0029',
|
|
'\u3222': '\u0028\u4E09\u0029',
|
|
'\u3223': '\u0028\u56DB\u0029',
|
|
'\u3224': '\u0028\u4E94\u0029',
|
|
'\u3225': '\u0028\u516D\u0029',
|
|
'\u3226': '\u0028\u4E03\u0029',
|
|
'\u3227': '\u0028\u516B\u0029',
|
|
'\u3228': '\u0028\u4E5D\u0029',
|
|
'\u3229': '\u0028\u5341\u0029',
|
|
'\u322A': '\u0028\u6708\u0029',
|
|
'\u322B': '\u0028\u706B\u0029',
|
|
'\u322C': '\u0028\u6C34\u0029',
|
|
'\u322D': '\u0028\u6728\u0029',
|
|
'\u322E': '\u0028\u91D1\u0029',
|
|
'\u322F': '\u0028\u571F\u0029',
|
|
'\u3230': '\u0028\u65E5\u0029',
|
|
'\u3231': '\u0028\u682A\u0029',
|
|
'\u3232': '\u0028\u6709\u0029',
|
|
'\u3233': '\u0028\u793E\u0029',
|
|
'\u3234': '\u0028\u540D\u0029',
|
|
'\u3235': '\u0028\u7279\u0029',
|
|
'\u3236': '\u0028\u8CA1\u0029',
|
|
'\u3237': '\u0028\u795D\u0029',
|
|
'\u3238': '\u0028\u52B4\u0029',
|
|
'\u3239': '\u0028\u4EE3\u0029',
|
|
'\u323A': '\u0028\u547C\u0029',
|
|
'\u323B': '\u0028\u5B66\u0029',
|
|
'\u323C': '\u0028\u76E3\u0029',
|
|
'\u323D': '\u0028\u4F01\u0029',
|
|
'\u323E': '\u0028\u8CC7\u0029',
|
|
'\u323F': '\u0028\u5354\u0029',
|
|
'\u3240': '\u0028\u796D\u0029',
|
|
'\u3241': '\u0028\u4F11\u0029',
|
|
'\u3242': '\u0028\u81EA\u0029',
|
|
'\u3243': '\u0028\u81F3\u0029',
|
|
'\u32C0': '\u0031\u6708',
|
|
'\u32C1': '\u0032\u6708',
|
|
'\u32C2': '\u0033\u6708',
|
|
'\u32C3': '\u0034\u6708',
|
|
'\u32C4': '\u0035\u6708',
|
|
'\u32C5': '\u0036\u6708',
|
|
'\u32C6': '\u0037\u6708',
|
|
'\u32C7': '\u0038\u6708',
|
|
'\u32C8': '\u0039\u6708',
|
|
'\u32C9': '\u0031\u0030\u6708',
|
|
'\u32CA': '\u0031\u0031\u6708',
|
|
'\u32CB': '\u0031\u0032\u6708',
|
|
'\u3358': '\u0030\u70B9',
|
|
'\u3359': '\u0031\u70B9',
|
|
'\u335A': '\u0032\u70B9',
|
|
'\u335B': '\u0033\u70B9',
|
|
'\u335C': '\u0034\u70B9',
|
|
'\u335D': '\u0035\u70B9',
|
|
'\u335E': '\u0036\u70B9',
|
|
'\u335F': '\u0037\u70B9',
|
|
'\u3360': '\u0038\u70B9',
|
|
'\u3361': '\u0039\u70B9',
|
|
'\u3362': '\u0031\u0030\u70B9',
|
|
'\u3363': '\u0031\u0031\u70B9',
|
|
'\u3364': '\u0031\u0032\u70B9',
|
|
'\u3365': '\u0031\u0033\u70B9',
|
|
'\u3366': '\u0031\u0034\u70B9',
|
|
'\u3367': '\u0031\u0035\u70B9',
|
|
'\u3368': '\u0031\u0036\u70B9',
|
|
'\u3369': '\u0031\u0037\u70B9',
|
|
'\u336A': '\u0031\u0038\u70B9',
|
|
'\u336B': '\u0031\u0039\u70B9',
|
|
'\u336C': '\u0032\u0030\u70B9',
|
|
'\u336D': '\u0032\u0031\u70B9',
|
|
'\u336E': '\u0032\u0032\u70B9',
|
|
'\u336F': '\u0032\u0033\u70B9',
|
|
'\u3370': '\u0032\u0034\u70B9',
|
|
'\u33E0': '\u0031\u65E5',
|
|
'\u33E1': '\u0032\u65E5',
|
|
'\u33E2': '\u0033\u65E5',
|
|
'\u33E3': '\u0034\u65E5',
|
|
'\u33E4': '\u0035\u65E5',
|
|
'\u33E5': '\u0036\u65E5',
|
|
'\u33E6': '\u0037\u65E5',
|
|
'\u33E7': '\u0038\u65E5',
|
|
'\u33E8': '\u0039\u65E5',
|
|
'\u33E9': '\u0031\u0030\u65E5',
|
|
'\u33EA': '\u0031\u0031\u65E5',
|
|
'\u33EB': '\u0031\u0032\u65E5',
|
|
'\u33EC': '\u0031\u0033\u65E5',
|
|
'\u33ED': '\u0031\u0034\u65E5',
|
|
'\u33EE': '\u0031\u0035\u65E5',
|
|
'\u33EF': '\u0031\u0036\u65E5',
|
|
'\u33F0': '\u0031\u0037\u65E5',
|
|
'\u33F1': '\u0031\u0038\u65E5',
|
|
'\u33F2': '\u0031\u0039\u65E5',
|
|
'\u33F3': '\u0032\u0030\u65E5',
|
|
'\u33F4': '\u0032\u0031\u65E5',
|
|
'\u33F5': '\u0032\u0032\u65E5',
|
|
'\u33F6': '\u0032\u0033\u65E5',
|
|
'\u33F7': '\u0032\u0034\u65E5',
|
|
'\u33F8': '\u0032\u0035\u65E5',
|
|
'\u33F9': '\u0032\u0036\u65E5',
|
|
'\u33FA': '\u0032\u0037\u65E5',
|
|
'\u33FB': '\u0032\u0038\u65E5',
|
|
'\u33FC': '\u0032\u0039\u65E5',
|
|
'\u33FD': '\u0033\u0030\u65E5',
|
|
'\u33FE': '\u0033\u0031\u65E5',
|
|
'\uFB00': '\u0066\u0066',
|
|
'\uFB01': '\u0066\u0069',
|
|
'\uFB02': '\u0066\u006C',
|
|
'\uFB03': '\u0066\u0066\u0069',
|
|
'\uFB04': '\u0066\u0066\u006C',
|
|
'\uFB05': '\u017F\u0074',
|
|
'\uFB06': '\u0073\u0074',
|
|
'\uFB13': '\u0574\u0576',
|
|
'\uFB14': '\u0574\u0565',
|
|
'\uFB15': '\u0574\u056B',
|
|
'\uFB16': '\u057E\u0576',
|
|
'\uFB17': '\u0574\u056D',
|
|
'\uFB4F': '\u05D0\u05DC',
|
|
'\uFE49': '\u203E',
|
|
'\uFE4A': '\u203E',
|
|
'\uFE4B': '\u203E',
|
|
'\uFE4C': '\u203E',
|
|
'\uFE4D': '\u005F',
|
|
'\uFE4E': '\u005F',
|
|
'\uFE4F': '\u005F'
|
|
};
|
|
|
|
function fontCharsToUnicode(charCodes, fontProperties) {
|
|
var toUnicode = fontProperties.toUnicode;
|
|
var composite = fontProperties.composite;
|
|
var encoding, differences, cidToUnicode;
|
|
var result = '';
|
|
if (composite) {
|
|
cidToUnicode = fontProperties.cidToUnicode;
|
|
for (var i = 0, ii = charCodes.length; i < ii; i += 2) {
|
|
var charCode = (charCodes.charCodeAt(i) << 8) |
|
|
charCodes.charCodeAt(i + 1);
|
|
if (toUnicode && charCode in toUnicode) {
|
|
var unicode = toUnicode[charCode];
|
|
result += typeof unicode !== 'number' ? unicode :
|
|
String.fromCharCode(unicode);
|
|
continue;
|
|
}
|
|
result += String.fromCharCode(!cidToUnicode ? charCode :
|
|
cidToUnicode[charCode] || charCode);
|
|
}
|
|
} else {
|
|
differences = fontProperties.differences;
|
|
encoding = fontProperties.baseEncoding;
|
|
for (var i = 0, ii = charCodes.length; i < ii; i++) {
|
|
var charCode = charCodes.charCodeAt(i);
|
|
var unicode;
|
|
if (toUnicode && charCode in toUnicode) {
|
|
var unicode = toUnicode[charCode];
|
|
result += typeof unicode !== 'number' ? unicode :
|
|
String.fromCharCode(unicode);
|
|
continue;
|
|
}
|
|
|
|
var glyphName = charCode in differences ? differences[charCode] :
|
|
encoding[charCode];
|
|
if (glyphName in GlyphsUnicode) {
|
|
result += String.fromCharCode(GlyphsUnicode[glyphName]);
|
|
continue;
|
|
}
|
|
result += String.fromCharCode(charCode);
|
|
}
|
|
}
|
|
// normalizing the unicode characters
|
|
for (var i = 0, ii = result.length; i < ii; i++) {
|
|
if (!(result[i] in NormalizedUnicodes))
|
|
continue;
|
|
result = result.substring(0, i) + NormalizedUnicodes[result[i]] +
|
|
result.substring(i + 1);
|
|
ii = result.length;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* 'Font' is the class the outside world should use, it encapsulate all the font
|
|
* decoding logics whatever type it is (assuming the font type is supported).
|
|
*
|
|
* For example to read a Type1 font and to attach it to the document:
|
|
* var type1Font = new Font("MyFontName", binaryFile, propertiesObject);
|
|
* type1Font.bind();
|
|
*/
|
|
var Font = (function FontClosure() {
|
|
function Font(name, file, properties) {
|
|
this.name = name;
|
|
this.coded = properties.coded;
|
|
this.charProcOperatorList = properties.charProcOperatorList;
|
|
this.sizes = [];
|
|
|
|
var names = name.split('+');
|
|
names = names.length > 1 ? names[1] : names[0];
|
|
names = names.split(/[-,_]/g)[0];
|
|
this.isSerifFont = !!(properties.flags & FontFlags.Serif);
|
|
this.isSymbolicFont = !!(properties.flags & FontFlags.Symbolic);
|
|
|
|
var type = properties.type;
|
|
this.type = type;
|
|
|
|
// If the font is to be ignored, register it like an already loaded font
|
|
// to avoid the cost of waiting for it be be loaded by the platform.
|
|
if (properties.ignore) {
|
|
this.loadedName = this.isSerifFont ? 'serif' : 'sans-serif';
|
|
this.loading = false;
|
|
return;
|
|
}
|
|
|
|
this.differences = properties.differences;
|
|
this.widths = properties.widths;
|
|
this.defaultWidth = properties.defaultWidth;
|
|
this.composite = properties.composite;
|
|
this.wideChars = properties.wideChars;
|
|
this.hasEncoding = properties.hasEncoding;
|
|
|
|
this.fontMatrix = properties.fontMatrix;
|
|
this.widthMultiplier = 1.0;
|
|
if (properties.type == 'Type3') {
|
|
this.encoding = properties.baseEncoding;
|
|
return;
|
|
}
|
|
|
|
// Trying to fix encoding using glyph CIDSystemInfo.
|
|
this.loadCidToUnicode(properties);
|
|
|
|
if (properties.toUnicode)
|
|
this.toUnicode = properties.toUnicode;
|
|
else
|
|
this.rebuildToUnicode(properties);
|
|
|
|
this.toFontChar = this.buildToFontChar(this.toUnicode);
|
|
|
|
if (!file) {
|
|
// The file data is not specified. Trying to fix the font name
|
|
// to be used with the canvas.font.
|
|
var fontName = name.replace(/[,_]/g, '-');
|
|
fontName = stdFontMap[fontName] || nonStdFontMap[fontName] || fontName;
|
|
|
|
this.bold = (fontName.search(/bold/gi) != -1);
|
|
this.italic = (fontName.search(/oblique/gi) != -1) ||
|
|
(fontName.search(/italic/gi) != -1);
|
|
|
|
// Use 'name' instead of 'fontName' here because the original
|
|
// name ArialBlack for example will be replaced by Helvetica.
|
|
this.black = (name.search(/Black/g) != -1);
|
|
|
|
this.encoding = properties.baseEncoding;
|
|
this.noUnicodeAdaptation = true;
|
|
this.loadedName = fontName.split('-')[0];
|
|
this.loading = false;
|
|
return;
|
|
}
|
|
|
|
var data;
|
|
switch (type) {
|
|
case 'Type1':
|
|
case 'CIDFontType0':
|
|
this.mimetype = 'font/opentype';
|
|
|
|
var subtype = properties.subtype;
|
|
var cff = (subtype == 'Type1C' || subtype == 'CIDFontType0C') ?
|
|
new CFFFont(file, properties) : new Type1Font(name, file, properties);
|
|
|
|
// Wrap the CFF data inside an OTF font file
|
|
data = this.convert(name, cff, properties);
|
|
break;
|
|
|
|
case 'TrueType':
|
|
case 'CIDFontType2':
|
|
this.mimetype = 'font/opentype';
|
|
|
|
// Repair the TrueType file. It is can be damaged in the point of
|
|
// view of the sanitizer
|
|
data = this.checkAndRepair(name, file, properties);
|
|
break;
|
|
|
|
default:
|
|
warn('Font ' + properties.type + ' is not supported');
|
|
break;
|
|
}
|
|
|
|
this.data = data;
|
|
this.fontMatrix = properties.fontMatrix;
|
|
this.widthMultiplier = !properties.fontMatrix ? 1.0 :
|
|
1.0 / properties.fontMatrix[0];
|
|
this.encoding = properties.baseEncoding;
|
|
this.loadedName = properties.loadedName;
|
|
this.loading = true;
|
|
};
|
|
|
|
var numFonts = 0;
|
|
function getUniqueName() {
|
|
return 'pdfFont' + numFonts++;
|
|
}
|
|
|
|
function stringToArray(str) {
|
|
var array = [];
|
|
for (var i = 0, ii = str.length; i < ii; ++i)
|
|
array[i] = str.charCodeAt(i);
|
|
|
|
return array;
|
|
};
|
|
|
|
function arrayToString(arr) {
|
|
var str = '';
|
|
for (var i = 0, ii = arr.length; i < ii; ++i)
|
|
str += String.fromCharCode(arr[i]);
|
|
|
|
return str;
|
|
};
|
|
|
|
function int16(bytes) {
|
|
return (bytes[0] << 8) + (bytes[1] & 0xff);
|
|
};
|
|
|
|
function int32(bytes) {
|
|
return (bytes[0] << 24) + (bytes[1] << 16) +
|
|
(bytes[2] << 8) + (bytes[3] & 0xff);
|
|
};
|
|
|
|
function getMaxPower2(number) {
|
|
var maxPower = 0;
|
|
var value = number;
|
|
while (value >= 2) {
|
|
value /= 2;
|
|
maxPower++;
|
|
}
|
|
|
|
value = 2;
|
|
for (var i = 1; i < maxPower; i++)
|
|
value *= 2;
|
|
return value;
|
|
};
|
|
|
|
function string16(value) {
|
|
return String.fromCharCode((value >> 8) & 0xff) +
|
|
String.fromCharCode(value & 0xff);
|
|
};
|
|
|
|
function safeString16(value) {
|
|
// clamp value to the 16-bit int range
|
|
value = value > 0x7FFF ? 0x7FFF : value < -0x8000 ? -0x8000 : value;
|
|
return String.fromCharCode((value >> 8) & 0xff) +
|
|
String.fromCharCode(value & 0xff);
|
|
};
|
|
|
|
function string32(value) {
|
|
return String.fromCharCode((value >> 24) & 0xff) +
|
|
String.fromCharCode((value >> 16) & 0xff) +
|
|
String.fromCharCode((value >> 8) & 0xff) +
|
|
String.fromCharCode(value & 0xff);
|
|
};
|
|
|
|
function createOpenTypeHeader(sfnt, file, numTables) {
|
|
// Windows hates the Mac TrueType sfnt version number
|
|
if (sfnt == 'true')
|
|
sfnt = string32(0x00010000);
|
|
|
|
// sfnt version (4 bytes)
|
|
var header = sfnt;
|
|
|
|
// numTables (2 bytes)
|
|
header += string16(numTables);
|
|
|
|
// searchRange (2 bytes)
|
|
var tablesMaxPower2 = getMaxPower2(numTables);
|
|
var searchRange = tablesMaxPower2 * 16;
|
|
header += string16(searchRange);
|
|
|
|
// entrySelector (2 bytes)
|
|
header += string16(Math.log(tablesMaxPower2) / Math.log(2));
|
|
|
|
// rangeShift (2 bytes)
|
|
header += string16(numTables * 16 - searchRange);
|
|
|
|
file.file += header;
|
|
file.virtualOffset += header.length;
|
|
};
|
|
|
|
function createTableEntry(file, tag, data) {
|
|
// offset
|
|
var offset = file.virtualOffset;
|
|
|
|
// length
|
|
var length = data.length;
|
|
|
|
// Per spec tables must be 4-bytes align so add padding as needed
|
|
while (data.length & 3)
|
|
data.push(0x00);
|
|
|
|
while (file.virtualOffset & 3)
|
|
file.virtualOffset++;
|
|
|
|
// checksum
|
|
var checksum = 0, n = data.length;
|
|
for (var i = 0; i < n; i += 4)
|
|
checksum = (checksum + int32([data[i], data[i + 1], data[i + 2],
|
|
data[i + 3]])) | 0;
|
|
|
|
var tableEntry = (tag + string32(checksum) +
|
|
string32(offset) + string32(length));
|
|
file.file += tableEntry;
|
|
file.virtualOffset += data.length;
|
|
};
|
|
|
|
function getRanges(glyphs) {
|
|
// Array.sort() sorts by characters, not numerically, so convert to an
|
|
// array of characters.
|
|
var codes = [];
|
|
var length = glyphs.length;
|
|
for (var n = 0; n < length; ++n)
|
|
codes.push({ unicode: glyphs[n].unicode, code: n });
|
|
codes.sort(function fontGetRangesSort(a, b) {
|
|
return a.unicode - b.unicode;
|
|
});
|
|
|
|
// Split the sorted codes into ranges.
|
|
var ranges = [];
|
|
for (var n = 0; n < length; ) {
|
|
var start = codes[n].unicode;
|
|
var codeIndices = [codes[n].code];
|
|
++n;
|
|
var end = start;
|
|
while (n < length && end + 1 == codes[n].unicode) {
|
|
codeIndices.push(codes[n].code);
|
|
++end;
|
|
++n;
|
|
}
|
|
ranges.push([start, end, codeIndices]);
|
|
}
|
|
|
|
return ranges;
|
|
};
|
|
|
|
function createCMapTable(glyphs, deltas) {
|
|
var ranges = getRanges(glyphs);
|
|
|
|
var numTables = 1;
|
|
var cmap = '\x00\x00' + // version
|
|
string16(numTables) + // numTables
|
|
'\x00\x03' + // platformID
|
|
'\x00\x01' + // encodingID
|
|
string32(4 + numTables * 8); // start of the table record
|
|
|
|
var segCount = ranges.length + 1;
|
|
var segCount2 = segCount * 2;
|
|
var searchRange = getMaxPower2(segCount) * 2;
|
|
var searchEntry = Math.log(segCount) / Math.log(2);
|
|
var rangeShift = 2 * segCount - searchRange;
|
|
|
|
// Fill up the 4 parallel arrays describing the segments.
|
|
var startCount = '';
|
|
var endCount = '';
|
|
var idDeltas = '';
|
|
var idRangeOffsets = '';
|
|
var glyphsIds = '';
|
|
var bias = 0;
|
|
|
|
if (deltas) {
|
|
for (var i = 0; i < segCount - 1; i++) {
|
|
var range = ranges[i];
|
|
var start = range[0];
|
|
var end = range[1];
|
|
var offset = (segCount - i) * 2 + bias * 2;
|
|
bias += (end - start + 1);
|
|
|
|
startCount += string16(start);
|
|
endCount += string16(end);
|
|
idDeltas += string16(0);
|
|
idRangeOffsets += string16(offset);
|
|
|
|
var codes = range[2];
|
|
for (var j = 0, jj = codes.length; j < jj; ++j)
|
|
glyphsIds += string16(deltas[codes[j]]);
|
|
}
|
|
} else {
|
|
for (var i = 0; i < segCount - 1; i++) {
|
|
var range = ranges[i];
|
|
var start = range[0];
|
|
var end = range[1];
|
|
var startCode = range[2][0];
|
|
|
|
startCount += string16(start);
|
|
endCount += string16(end);
|
|
idDeltas += string16((startCode - start + 1) & 0xFFFF);
|
|
idRangeOffsets += string16(0);
|
|
}
|
|
}
|
|
|
|
endCount += '\xFF\xFF';
|
|
startCount += '\xFF\xFF';
|
|
idDeltas += '\x00\x01';
|
|
idRangeOffsets += '\x00\x00';
|
|
|
|
var format314 = '\x00\x00' + // language
|
|
string16(segCount2) +
|
|
string16(searchRange) +
|
|
string16(searchEntry) +
|
|
string16(rangeShift) +
|
|
endCount + '\x00\x00' + startCount +
|
|
idDeltas + idRangeOffsets + glyphsIds;
|
|
|
|
return stringToArray(cmap +
|
|
'\x00\x04' + // format
|
|
string16(format314.length + 4) + // length
|
|
format314);
|
|
};
|
|
|
|
function createOS2Table(properties, charstrings, override) {
|
|
override = override || {
|
|
unitsPerEm: 0,
|
|
yMax: 0,
|
|
yMin: 0,
|
|
ascent: 0,
|
|
descent: 0
|
|
};
|
|
|
|
var ulUnicodeRange1 = 0;
|
|
var ulUnicodeRange2 = 0;
|
|
var ulUnicodeRange3 = 0;
|
|
var ulUnicodeRange4 = 0;
|
|
|
|
var firstCharIndex = null;
|
|
var lastCharIndex = 0;
|
|
|
|
if (charstrings) {
|
|
for (var i = 0; i < charstrings.length; ++i) {
|
|
var code = charstrings[i].unicode;
|
|
if (firstCharIndex > code || !firstCharIndex)
|
|
firstCharIndex = code;
|
|
if (lastCharIndex < code)
|
|
lastCharIndex = code;
|
|
|
|
var position = getUnicodeRangeFor(code);
|
|
if (position < 32) {
|
|
ulUnicodeRange1 |= 1 << position;
|
|
} else if (position < 64) {
|
|
ulUnicodeRange2 |= 1 << position - 32;
|
|
} else if (position < 96) {
|
|
ulUnicodeRange3 |= 1 << position - 64;
|
|
} else if (position < 123) {
|
|
ulUnicodeRange4 |= 1 << position - 96;
|
|
} else {
|
|
error('Unicode ranges Bits > 123 are reserved for internal usage');
|
|
}
|
|
}
|
|
} else {
|
|
// TODO
|
|
firstCharIndex = 0;
|
|
lastCharIndex = 255;
|
|
}
|
|
|
|
var unitsPerEm = override.unitsPerEm || kPDFGlyphSpaceUnits;
|
|
var typoAscent = override.ascent || properties.ascent;
|
|
var typoDescent = override.descent || properties.descent;
|
|
var winAscent = override.yMax || typoAscent;
|
|
var winDescent = -override.yMin || -typoDescent;
|
|
|
|
// if there is a units per em value but no other override
|
|
// then scale the calculated ascent
|
|
if (unitsPerEm != kPDFGlyphSpaceUnits &&
|
|
'undefined' == typeof(override.ascent)) {
|
|
// if the font units differ to the PDF glyph space units
|
|
// then scale up the values
|
|
typoAscent = Math.round(typoAscent * unitsPerEm / kPDFGlyphSpaceUnits);
|
|
typoDescent = Math.round(typoDescent * unitsPerEm / kPDFGlyphSpaceUnits);
|
|
winAscent = typoAscent;
|
|
winDescent = -typoDescent;
|
|
}
|
|
|
|
return '\x00\x03' + // version
|
|
'\x02\x24' + // xAvgCharWidth
|
|
'\x01\xF4' + // usWeightClass
|
|
'\x00\x05' + // usWidthClass
|
|
'\x00\x00' + // fstype (0 to let the font loads via font-face on IE)
|
|
'\x02\x8A' + // ySubscriptXSize
|
|
'\x02\xBB' + // ySubscriptYSize
|
|
'\x00\x00' + // ySubscriptXOffset
|
|
'\x00\x8C' + // ySubscriptYOffset
|
|
'\x02\x8A' + // ySuperScriptXSize
|
|
'\x02\xBB' + // ySuperScriptYSize
|
|
'\x00\x00' + // ySuperScriptXOffset
|
|
'\x01\xDF' + // ySuperScriptYOffset
|
|
'\x00\x31' + // yStrikeOutSize
|
|
'\x01\x02' + // yStrikeOutPosition
|
|
'\x00\x00' + // sFamilyClass
|
|
'\x00\x00\x06' +
|
|
String.fromCharCode(properties.fixedPitch ? 0x09 : 0x00) +
|
|
'\x00\x00\x00\x00\x00\x00' + // Panose
|
|
string32(ulUnicodeRange1) + // ulUnicodeRange1 (Bits 0-31)
|
|
string32(ulUnicodeRange2) + // ulUnicodeRange2 (Bits 32-63)
|
|
string32(ulUnicodeRange3) + // ulUnicodeRange3 (Bits 64-95)
|
|
string32(ulUnicodeRange4) + // ulUnicodeRange4 (Bits 96-127)
|
|
'\x2A\x32\x31\x2A' + // achVendID
|
|
string16(properties.italicAngle ? 1 : 0) + // fsSelection
|
|
string16(firstCharIndex ||
|
|
properties.firstChar) + // usFirstCharIndex
|
|
string16(lastCharIndex || properties.lastChar) + // usLastCharIndex
|
|
string16(typoAscent) + // sTypoAscender
|
|
string16(typoDescent) + // sTypoDescender
|
|
'\x00\x64' + // sTypoLineGap (7%-10% of the unitsPerEM value)
|
|
string16(winAscent) + // usWinAscent
|
|
string16(winDescent) + // usWinDescent
|
|
'\x00\x00\x00\x00' + // ulCodePageRange1 (Bits 0-31)
|
|
'\x00\x00\x00\x00' + // ulCodePageRange2 (Bits 32-63)
|
|
string16(properties.xHeight) + // sxHeight
|
|
string16(properties.capHeight) + // sCapHeight
|
|
string16(0) + // usDefaultChar
|
|
string16(firstCharIndex || properties.firstChar) + // usBreakChar
|
|
'\x00\x03'; // usMaxContext
|
|
};
|
|
|
|
function createPostTable(properties) {
|
|
var angle = Math.floor(properties.italicAngle * (Math.pow(2, 16)));
|
|
return '\x00\x03\x00\x00' + // Version number
|
|
string32(angle) + // italicAngle
|
|
'\x00\x00' + // underlinePosition
|
|
'\x00\x00' + // underlineThickness
|
|
string32(properties.fixedPitch) + // isFixedPitch
|
|
'\x00\x00\x00\x00' + // minMemType42
|
|
'\x00\x00\x00\x00' + // maxMemType42
|
|
'\x00\x00\x00\x00' + // minMemType1
|
|
'\x00\x00\x00\x00'; // maxMemType1
|
|
};
|
|
|
|
function createNameTable(name) {
|
|
var strings = [
|
|
'Original licence', // 0.Copyright
|
|
name, // 1.Font family
|
|
'Unknown', // 2.Font subfamily (font weight)
|
|
'uniqueID', // 3.Unique ID
|
|
name, // 4.Full font name
|
|
'Version 0.11', // 5.Version
|
|
'', // 6.Postscript name
|
|
'Unknown', // 7.Trademark
|
|
'Unknown', // 8.Manufacturer
|
|
'Unknown' // 9.Designer
|
|
];
|
|
|
|
// Mac want 1-byte per character strings while Windows want
|
|
// 2-bytes per character, so duplicate the names table
|
|
var stringsUnicode = [];
|
|
for (var i = 0, ii = strings.length; i < ii; i++) {
|
|
var str = strings[i];
|
|
|
|
var strUnicode = '';
|
|
for (var j = 0, jj = str.length; j < jj; j++)
|
|
strUnicode += string16(str.charCodeAt(j));
|
|
stringsUnicode.push(strUnicode);
|
|
}
|
|
|
|
var names = [strings, stringsUnicode];
|
|
var platforms = ['\x00\x01', '\x00\x03'];
|
|
var encodings = ['\x00\x00', '\x00\x01'];
|
|
var languages = ['\x00\x00', '\x04\x09'];
|
|
|
|
var namesRecordCount = strings.length * platforms.length;
|
|
var nameTable =
|
|
'\x00\x00' + // format
|
|
string16(namesRecordCount) + // Number of names Record
|
|
string16(namesRecordCount * 12 + 6); // Storage
|
|
|
|
// Build the name records field
|
|
var strOffset = 0;
|
|
for (var i = 0, ii = platforms.length; i < ii; i++) {
|
|
var strs = names[i];
|
|
for (var j = 0, jj = strs.length; j < jj; j++) {
|
|
var str = strs[j];
|
|
var nameRecord =
|
|
platforms[i] + // platform ID
|
|
encodings[i] + // encoding ID
|
|
languages[i] + // language ID
|
|
string16(j) + // name ID
|
|
string16(str.length) +
|
|
string16(strOffset);
|
|
nameTable += nameRecord;
|
|
strOffset += str.length;
|
|
}
|
|
}
|
|
|
|
nameTable += strings.join('') + stringsUnicode.join('');
|
|
return nameTable;
|
|
}
|
|
|
|
Font.prototype = {
|
|
name: null,
|
|
font: null,
|
|
mimetype: null,
|
|
encoding: null,
|
|
|
|
checkAndRepair: function Font_checkAndRepair(name, font, properties) {
|
|
function readTableEntry(file) {
|
|
var tag = file.getBytes(4);
|
|
tag = String.fromCharCode(tag[0]) +
|
|
String.fromCharCode(tag[1]) +
|
|
String.fromCharCode(tag[2]) +
|
|
String.fromCharCode(tag[3]);
|
|
|
|
var checksum = int32(file.getBytes(4));
|
|
var offset = int32(file.getBytes(4));
|
|
var length = int32(file.getBytes(4));
|
|
|
|
// Read the table associated data
|
|
var previousPosition = file.pos;
|
|
file.pos = file.start ? file.start : 0;
|
|
file.skip(offset);
|
|
var data = file.getBytes(length);
|
|
file.pos = previousPosition;
|
|
|
|
if (tag == 'head') {
|
|
// clearing checksum adjustment
|
|
data[8] = data[9] = data[10] = data[11] = 0;
|
|
data[17] |= 0x20; //Set font optimized for cleartype flag
|
|
}
|
|
|
|
return {
|
|
tag: tag,
|
|
checksum: checksum,
|
|
length: length,
|
|
offset: offset,
|
|
data: data
|
|
};
|
|
};
|
|
|
|
function readOpenTypeHeader(ttf) {
|
|
return {
|
|
version: arrayToString(ttf.getBytes(4)),
|
|
numTables: int16(ttf.getBytes(2)),
|
|
searchRange: int16(ttf.getBytes(2)),
|
|
entrySelector: int16(ttf.getBytes(2)),
|
|
rangeShift: int16(ttf.getBytes(2))
|
|
};
|
|
};
|
|
|
|
function createGlyphNameMap(glyphs, ids, properties) {
|
|
var glyphNames = properties.glyphNames;
|
|
if (!glyphNames) {
|
|
properties.glyphNameMap = {};
|
|
return;
|
|
}
|
|
var glyphsLength = glyphs.length;
|
|
var glyphNameMap = {};
|
|
var encoding = [];
|
|
for (var i = 0; i < glyphsLength; ++i) {
|
|
var glyphName = glyphNames[ids[i]];
|
|
if (!glyphName)
|
|
continue;
|
|
var unicode = glyphs[i].unicode;
|
|
glyphNameMap[glyphName] = unicode;
|
|
var code = glyphs[i].code;
|
|
encoding[code] = glyphName;
|
|
}
|
|
properties.glyphNameMap = glyphNameMap;
|
|
if (!properties.hasEncoding)
|
|
properties.baseEncoding = encoding;
|
|
}
|
|
|
|
function readCMapTable(cmap, font) {
|
|
var start = (font.start ? font.start : 0) + cmap.offset;
|
|
font.pos = start;
|
|
|
|
var version = int16(font.getBytes(2));
|
|
var numRecords = int16(font.getBytes(2));
|
|
|
|
var records = [];
|
|
for (var i = 0; i < numRecords; i++) {
|
|
records.push({
|
|
platformID: int16(font.getBytes(2)),
|
|
encodingID: int16(font.getBytes(2)),
|
|
offset: int32(font.getBytes(4))
|
|
});
|
|
}
|
|
|
|
// Check that table are sorted by platformID then encodingID,
|
|
records.sort(function fontReadCMapTableSort(a, b) {
|
|
return ((a.platformID << 16) + a.encodingID) -
|
|
((b.platformID << 16) + b.encodingID);
|
|
});
|
|
|
|
var tables = [records[0]];
|
|
for (var i = 1; i < numRecords; i++) {
|
|
// The sanitizer will drop the font if 2 tables have the same
|
|
// platformID and the same encodingID, this will be correct for
|
|
// most cases but if the font has been made for Mac it could
|
|
// exist a few platformID: 1, encodingID: 0 but with a different
|
|
// language field and that's correct. But the sanitizer does not
|
|
// seem to support this case.
|
|
var current = records[i];
|
|
var previous = records[i - 1];
|
|
if (((current.platformID << 16) + current.encodingID) <=
|
|
((previous.platformID << 16) + previous.encodingID))
|
|
continue;
|
|
tables.push(current);
|
|
}
|
|
|
|
var missing = numRecords - tables.length;
|
|
if (missing) {
|
|
numRecords = tables.length;
|
|
var data = string16(version) + string16(numRecords);
|
|
|
|
for (var i = 0; i < numRecords; i++) {
|
|
var table = tables[i];
|
|
data += string16(table.platformID) +
|
|
string16(table.encodingID) +
|
|
string32(table.offset);
|
|
}
|
|
|
|
for (var i = 0, ii = data.length; i < ii; i++)
|
|
cmap.data[i] = data.charCodeAt(i);
|
|
}
|
|
|
|
for (var i = 0; i < numRecords; i++) {
|
|
var table = tables[i];
|
|
font.pos = start + table.offset;
|
|
|
|
var format = int16(font.getBytes(2));
|
|
var length = int16(font.getBytes(2));
|
|
var language = int16(font.getBytes(2));
|
|
|
|
if (format == 0) {
|
|
// Characters below 0x20 are controls characters that are hardcoded
|
|
// into the platform so if some characters in the font are assigned
|
|
// under this limit they will not be displayed so let's rewrite the
|
|
// CMap.
|
|
var glyphs = [];
|
|
var ids = [];
|
|
for (var j = 0; j < 256; j++) {
|
|
var index = font.getByte();
|
|
if (index) {
|
|
glyphs.push({ unicode: j, code: j });
|
|
ids.push(index);
|
|
}
|
|
}
|
|
return {
|
|
glyphs: glyphs,
|
|
ids: ids,
|
|
hasShortCmap: true
|
|
};
|
|
} else if (format == 4) {
|
|
// re-creating the table in format 4 since the encoding
|
|
// might be changed
|
|
var segCount = (int16(font.getBytes(2)) >> 1);
|
|
font.getBytes(6); // skipping range fields
|
|
var segIndex, segments = [];
|
|
for (segIndex = 0; segIndex < segCount; segIndex++) {
|
|
segments.push({ end: int16(font.getBytes(2)) });
|
|
}
|
|
font.getBytes(2);
|
|
for (segIndex = 0; segIndex < segCount; segIndex++) {
|
|
segments[segIndex].start = int16(font.getBytes(2));
|
|
}
|
|
|
|
for (segIndex = 0; segIndex < segCount; segIndex++) {
|
|
segments[segIndex].delta = int16(font.getBytes(2));
|
|
}
|
|
|
|
var offsetsCount = 0;
|
|
for (segIndex = 0; segIndex < segCount; segIndex++) {
|
|
var segment = segments[segIndex];
|
|
var rangeOffset = int16(font.getBytes(2));
|
|
if (!rangeOffset) {
|
|
segment.offsetIndex = -1;
|
|
continue;
|
|
}
|
|
|
|
var offsetIndex = (rangeOffset >> 1) - (segCount - segIndex);
|
|
segment.offsetIndex = offsetIndex;
|
|
offsetsCount = Math.max(offsetsCount, offsetIndex +
|
|
segment.end - segment.start + 1);
|
|
}
|
|
|
|
var offsets = [];
|
|
for (var j = 0; j < offsetsCount; j++)
|
|
offsets.push(int16(font.getBytes(2)));
|
|
|
|
var glyphs = [], ids = [];
|
|
|
|
for (segIndex = 0; segIndex < segCount; segIndex++) {
|
|
var segment = segments[segIndex];
|
|
var start = segment.start, end = segment.end;
|
|
var delta = segment.delta, offsetIndex = segment.offsetIndex;
|
|
|
|
for (var j = start; j <= end; j++) {
|
|
if (j == 0xFFFF)
|
|
continue;
|
|
|
|
var glyphCode = offsetIndex < 0 ? j :
|
|
offsets[offsetIndex + j - start];
|
|
glyphCode = (glyphCode + delta) & 0xFFFF;
|
|
if (glyphCode == 0)
|
|
continue;
|
|
|
|
glyphs.push({ unicode: j, code: j });
|
|
ids.push(glyphCode);
|
|
}
|
|
}
|
|
|
|
return {
|
|
glyphs: glyphs,
|
|
ids: ids
|
|
};
|
|
} else if (format == 6) {
|
|
// Format 6 is a 2-bytes dense mapping, which means the font data
|
|
// lives glue together even if they are pretty far in the unicode
|
|
// table. (This looks weird, so I can have missed something), this
|
|
// works on Linux but seems to fails on Mac so let's rewrite the
|
|
// cmap table to a 3-1-4 style
|
|
var firstCode = int16(font.getBytes(2));
|
|
var entryCount = int16(font.getBytes(2));
|
|
|
|
var glyphs = [];
|
|
var ids = [];
|
|
for (var j = 0; j < entryCount; j++) {
|
|
var glyphCode = int16(font.getBytes(2));
|
|
var code = firstCode + j;
|
|
|
|
glyphs.push({ unicode: code, code: code });
|
|
ids.push(glyphCode);
|
|
}
|
|
|
|
return {
|
|
glyphs: glyphs,
|
|
ids: ids
|
|
};
|
|
}
|
|
}
|
|
error('Unsupported cmap table format');
|
|
};
|
|
|
|
function sanitizeMetrics(font, header, metrics, numGlyphs) {
|
|
if (!header && !metrics)
|
|
return;
|
|
|
|
// The vhea/vmtx tables are not required, so it happens that
|
|
// some fonts embed a vmtx table without a vhea table. In this
|
|
// situation the sanitizer assume numOfLongVerMetrics = 1. As
|
|
// a result it tries to read numGlyphs - 1 SHORT from the vmtx
|
|
// table, and if it is not possible, the font is rejected.
|
|
// So remove the vmtx table if there is no vhea table.
|
|
if (!header && metrics) {
|
|
metrics.data = null;
|
|
return;
|
|
}
|
|
|
|
font.pos = (font.start ? font.start : 0) + header.offset;
|
|
font.pos += header.length - 2;
|
|
var numOfMetrics = int16(font.getBytes(2));
|
|
|
|
var numOfSidebearings = numGlyphs - numOfMetrics;
|
|
var numMissing = numOfSidebearings -
|
|
((hmtx.length - numOfMetrics * 4) >> 1);
|
|
if (numMissing > 0) {
|
|
font.pos = (font.start ? font.start : 0) + metrics.offset;
|
|
var entries = '';
|
|
for (var i = 0, ii = hmtx.length; i < ii; i++)
|
|
entries += String.fromCharCode(font.getByte());
|
|
for (var i = 0; i < numMissing; i++)
|
|
entries += '\x00\x00';
|
|
metrics.data = stringToArray(entries);
|
|
}
|
|
};
|
|
|
|
function sanitizeGlyph(source, sourceStart, sourceEnd, dest, destStart) {
|
|
if (sourceEnd - sourceStart <= 12) {
|
|
// glyph with data less than 12 is invalid one
|
|
return 0;
|
|
}
|
|
var glyf = source.subarray(sourceStart, sourceEnd);
|
|
var contoursCount = (glyf[0] << 8) | glyf[1];
|
|
if (contoursCount & 0x8000) {
|
|
// complex glyph, writing as is
|
|
dest.set(glyf, destStart);
|
|
return glyf.length;
|
|
}
|
|
|
|
var j = 10, flagsCount = 0;
|
|
for (var i = 0; i < contoursCount; i++) {
|
|
var endPoint = (glyf[j] << 8) | glyf[j + 1];
|
|
flagsCount = endPoint + 1;
|
|
j += 2;
|
|
}
|
|
// skipping instructions
|
|
var instructionsLength = (glyf[j] << 8) | glyf[j + 1];
|
|
j += 2 + instructionsLength;
|
|
// validating flags
|
|
var coordinatesLength = 0;
|
|
for (var i = 0; i < flagsCount; i++) {
|
|
var flag = glyf[j++];
|
|
if (flag & 0xC0) {
|
|
// reserved flags must be zero, rejecting
|
|
return 0;
|
|
}
|
|
var xyLength = ((flag & 2) ? 1 : (flag & 16) ? 0 : 2) +
|
|
((flag & 4) ? 1 : (flag & 32) ? 0 : 2);
|
|
coordinatesLength += xyLength;
|
|
if (flag & 8) {
|
|
var repeat = glyf[j++];
|
|
i += repeat;
|
|
coordinatesLength += repeat * xyLength;
|
|
}
|
|
}
|
|
var glyphDataLength = j + coordinatesLength;
|
|
if (glyphDataLength > glyf.length) {
|
|
// not enough data for coordinates
|
|
return 0;
|
|
}
|
|
if (glyf.length - glyphDataLength > 3) {
|
|
// truncating and aligning to 4 bytes the long glyph data
|
|
glyphDataLength = (glyphDataLength + 3) & ~3;
|
|
dest.set(glyf.subarray(0, glyphDataLength), destStart);
|
|
return glyphDataLength;
|
|
}
|
|
// glyph data is fine
|
|
dest.set(glyf, destStart);
|
|
return glyf.length;
|
|
}
|
|
|
|
function sanitizeGlyphLocations(loca, glyf, numGlyphs,
|
|
isGlyphLocationsLong) {
|
|
var itemSize, itemDecode, itemEncode;
|
|
if (isGlyphLocationsLong) {
|
|
itemSize = 4;
|
|
itemDecode = function fontItemDecodeLong(data, offset) {
|
|
return (data[offset] << 24) | (data[offset + 1] << 16) |
|
|
(data[offset + 2] << 8) | data[offset + 3];
|
|
};
|
|
itemEncode = function fontItemEncodeLong(data, offset, value) {
|
|
data[offset] = (value >>> 24) & 0xFF;
|
|
data[offset + 1] = (value >> 16) & 0xFF;
|
|
data[offset + 2] = (value >> 8) & 0xFF;
|
|
data[offset + 3] = value & 0xFF;
|
|
};
|
|
} else {
|
|
itemSize = 2;
|
|
itemDecode = function fontItemDecode(data, offset) {
|
|
return (data[offset] << 9) | (data[offset + 1] << 1);
|
|
};
|
|
itemEncode = function fontItemEncode(data, offset, value) {
|
|
data[offset] = (value >> 9) & 0xFF;
|
|
data[offset + 1] = (value >> 1) & 0xFF;
|
|
};
|
|
}
|
|
var locaData = loca.data;
|
|
// removing the invalid glyphs
|
|
var oldGlyfData = glyf.data;
|
|
var oldGlyfDataLength = oldGlyfData.length;
|
|
var newGlyfData = new Uint8Array(oldGlyfDataLength);
|
|
var startOffset = itemDecode(locaData, 0);
|
|
var writeOffset = 0;
|
|
itemEncode(locaData, 0, writeOffset);
|
|
for (var i = 0, j = itemSize; i < numGlyphs; i++, j += itemSize) {
|
|
var endOffset = itemDecode(locaData, j);
|
|
if (endOffset > oldGlyfDataLength) {
|
|
// glyph end offset points outside glyf data, rejecting the glyph
|
|
itemEncode(locaData, j, writeOffset);
|
|
startOffset = endOffset;
|
|
continue;
|
|
}
|
|
|
|
var newLength = sanitizeGlyph(oldGlyfData, startOffset, endOffset,
|
|
newGlyfData, writeOffset);
|
|
writeOffset += newLength;
|
|
itemEncode(locaData, j, writeOffset);
|
|
startOffset = endOffset;
|
|
}
|
|
|
|
if (writeOffset == 0) {
|
|
// glyf table cannot be empty -- redoing the glyf and loca tables
|
|
// to have single glyph with one point
|
|
var simpleGlyph = new Uint8Array(
|
|
[0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 49, 0]);
|
|
for (var i = 0, j = itemSize; i < numGlyphs; i++, j += itemSize)
|
|
itemEncode(locaData, j, simpleGlyph.length);
|
|
glyf.data = simpleGlyph;
|
|
return;
|
|
}
|
|
|
|
glyf.data = newGlyfData.subarray(0, writeOffset);
|
|
}
|
|
|
|
function findEmptyGlyphs(locaTable, isGlyphLocationsLong, emptyGlyphIds) {
|
|
var itemSize, itemDecode;
|
|
if (isGlyphLocationsLong) {
|
|
itemSize = 4;
|
|
itemDecode = function fontItemDecodeLong(data, offset) {
|
|
return (data[offset] << 24) | (data[offset + 1] << 16) |
|
|
(data[offset + 2] << 8) | data[offset + 3];
|
|
};
|
|
} else {
|
|
itemSize = 2;
|
|
itemDecode = function fontItemDecode(data, offset) {
|
|
return (data[offset] << 9) | (data[offset + 1] << 1);
|
|
};
|
|
}
|
|
var data = locaTable.data, length = data.length;
|
|
var lastOffset = itemDecode(data, 0);
|
|
for (var i = itemSize, j = 0; i < length; i += itemSize, j++) {
|
|
var offset = itemDecode(data, i);
|
|
if (offset == lastOffset)
|
|
emptyGlyphIds[j] = true;
|
|
lastOffset = offset;
|
|
}
|
|
}
|
|
|
|
function readGlyphNameMap(post, properties) {
|
|
var start = (font.start ? font.start : 0) + post.offset;
|
|
font.pos = start;
|
|
|
|
var length = post.length, end = start + length;
|
|
var version = int32(font.getBytes(4));
|
|
// skip rest to the tables
|
|
font.getBytes(28);
|
|
|
|
var glyphNames;
|
|
switch (version) {
|
|
case 0x00010000:
|
|
glyphNames = MacStandardGlyphOrdering;
|
|
break;
|
|
case 0x00020000:
|
|
var numGlyphs = int16(font.getBytes(2));
|
|
var glyphNameIndexes = [];
|
|
for (var i = 0; i < numGlyphs; ++i)
|
|
glyphNameIndexes.push(int16(font.getBytes(2)));
|
|
var customNames = [];
|
|
while (font.pos < end) {
|
|
var stringLength = font.getByte();
|
|
var string = '';
|
|
for (var i = 0; i < stringLength; ++i)
|
|
string += font.getChar();
|
|
customNames.push(string);
|
|
}
|
|
glyphNames = [];
|
|
for (var i = 0; i < numGlyphs; ++i) {
|
|
var j = glyphNameIndexes[i];
|
|
if (j < 258) {
|
|
glyphNames.push(MacStandardGlyphOrdering[j]);
|
|
continue;
|
|
}
|
|
glyphNames.push(customNames[j - 258]);
|
|
}
|
|
break;
|
|
case 0x00030000:
|
|
break;
|
|
default:
|
|
warn('Unknown/unsupported post table version ' + version);
|
|
break;
|
|
}
|
|
properties.glyphNames = glyphNames;
|
|
}
|
|
|
|
function isOS2Valid(os2Table) {
|
|
var data = os2Table.data;
|
|
// usWinAscent == 0 makes font unreadable by windows
|
|
var usWinAscent = (data[74] << 8) | data[75];
|
|
if (usWinAscent == 0)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
// Check that required tables are present
|
|
var requiredTables = ['OS/2', 'cmap', 'head', 'hhea',
|
|
'hmtx', 'maxp', 'name', 'post'];
|
|
|
|
var header = readOpenTypeHeader(font);
|
|
var numTables = header.numTables;
|
|
|
|
var cmap, post, maxp, hhea, hmtx, vhea, vmtx, head, loca, glyf, os2;
|
|
var tables = [];
|
|
for (var i = 0; i < numTables; i++) {
|
|
var table = readTableEntry(font);
|
|
var index = requiredTables.indexOf(table.tag);
|
|
if (index != -1) {
|
|
if (table.tag == 'cmap')
|
|
cmap = table;
|
|
else if (table.tag == 'post')
|
|
post = table;
|
|
else if (table.tag == 'maxp')
|
|
maxp = table;
|
|
else if (table.tag == 'hhea')
|
|
hhea = table;
|
|
else if (table.tag == 'hmtx')
|
|
hmtx = table;
|
|
else if (table.tag == 'head')
|
|
head = table;
|
|
else if (table.tag == 'OS/2')
|
|
os2 = table;
|
|
|
|
requiredTables.splice(index, 1);
|
|
} else {
|
|
if (table.tag == 'vmtx')
|
|
vmtx = table;
|
|
else if (table.tag == 'vhea')
|
|
vhea = table;
|
|
else if (table.tag == 'loca')
|
|
loca = table;
|
|
else if (table.tag == 'glyf')
|
|
glyf = table;
|
|
}
|
|
tables.push(table);
|
|
}
|
|
|
|
var numTables = tables.length + requiredTables.length;
|
|
|
|
// header and new offsets. Table entry information is appended to the
|
|
// end of file. The virtualOffset represents where to put the actual
|
|
// data of a particular table;
|
|
var ttf = {
|
|
file: '',
|
|
virtualOffset: numTables * (4 * 4)
|
|
};
|
|
|
|
// The new numbers of tables will be the last one plus the num
|
|
// of missing tables
|
|
createOpenTypeHeader(header.version, ttf, numTables);
|
|
|
|
// Invalid OS/2 can break the font for the Windows
|
|
if (os2 && !isOS2Valid(os2)) {
|
|
tables.splice(tables.indexOf(os2), 1);
|
|
os2 = null;
|
|
}
|
|
|
|
// Ensure the [h/v]mtx tables contains the advance width and
|
|
// sidebearings information for numGlyphs in the maxp table
|
|
font.pos = (font.start || 0) + maxp.offset;
|
|
var version = int16(font.getBytes(4));
|
|
var numGlyphs = int16(font.getBytes(2));
|
|
|
|
sanitizeMetrics(font, hhea, hmtx, numGlyphs);
|
|
sanitizeMetrics(font, vhea, vmtx, numGlyphs);
|
|
|
|
var isGlyphLocationsLong = int16([head.data[50], head.data[51]]);
|
|
if (head && loca && glyf) {
|
|
sanitizeGlyphLocations(loca, glyf, numGlyphs, isGlyphLocationsLong);
|
|
}
|
|
|
|
var emptyGlyphIds = [];
|
|
if (glyf)
|
|
findEmptyGlyphs(loca, isGlyphLocationsLong, emptyGlyphIds);
|
|
|
|
// Sanitizer reduces the glyph advanceWidth to the maxAdvanceWidth
|
|
// Sometimes it's 0. That needs to be fixed
|
|
if (hhea.data[10] == 0 && hhea.data[11] == 0) {
|
|
hhea.data[10] = 0xFF;
|
|
hhea.data[11] = 0xFF;
|
|
}
|
|
|
|
// The 'post' table has glyphs names.
|
|
if (post) {
|
|
readGlyphNameMap(post, properties);
|
|
}
|
|
|
|
var glyphs, ids;
|
|
if (properties.type == 'CIDFontType2') {
|
|
// Replace the old CMAP table with a shiny new one
|
|
// Type2 composite fonts map characters directly to glyphs so the cmap
|
|
// table must be replaced.
|
|
// canvas fillText will reencode some characters even if the font has a
|
|
// glyph at that position - e.g. newline is converted to a space and
|
|
// U+00AD (soft hyphen) is not drawn.
|
|
// So, offset all the glyphs by 0xFF to avoid these cases and use
|
|
// the encoding to map incoming characters to the new glyph positions
|
|
if (!cmap) {
|
|
cmap = {
|
|
tag: 'cmap',
|
|
data: null
|
|
};
|
|
tables.push(cmap);
|
|
}
|
|
|
|
var cidToGidMap = properties.cidToGidMap || [];
|
|
var gidToCidMap = [0];
|
|
if (cidToGidMap.length > 0) {
|
|
for (var j = cidToGidMap.length - 1; j >= 0; j--) {
|
|
var gid = cidToGidMap[j];
|
|
if (gid)
|
|
gidToCidMap[gid] = j;
|
|
}
|
|
// filling the gaps using CID above the CIDs currently used in font
|
|
var nextCid = cidToGidMap.length;
|
|
for (var i = 1; i < numGlyphs; i++) {
|
|
if (!gidToCidMap[i])
|
|
gidToCidMap[i] = nextCid++;
|
|
}
|
|
}
|
|
|
|
glyphs = [];
|
|
ids = [];
|
|
|
|
var usedUnicodes = [];
|
|
var unassignedUnicodeItems = [];
|
|
for (var i = 1; i < numGlyphs; i++) {
|
|
var cid = gidToCidMap[i] || i;
|
|
var unicode = this.toFontChar[cid];
|
|
if (!unicode || typeof unicode !== 'number' ||
|
|
isSpecialUnicode(unicode) || unicode in usedUnicodes) {
|
|
unassignedUnicodeItems.push(i);
|
|
continue;
|
|
}
|
|
usedUnicodes[unicode] = true;
|
|
glyphs.push({ unicode: unicode, code: cid });
|
|
ids.push(i);
|
|
}
|
|
// trying to fit as many unassigned symbols as we can
|
|
// in the range allocated for the user defined symbols
|
|
var unusedUnicode = kCmapGlyphOffset;
|
|
for (var j = 0, jj = unassignedUnicodeItems.length; j < jj; j++) {
|
|
var i = unassignedUnicodeItems[j];
|
|
var cid = gidToCidMap[i] || i;
|
|
while (unusedUnicode in usedUnicodes)
|
|
unusedUnicode++;
|
|
if (unusedUnicode >= kCmapGlyphOffset + kSizeOfGlyphArea)
|
|
break;
|
|
var unicode = unusedUnicode++;
|
|
this.toFontChar[cid] = unicode;
|
|
usedUnicodes[unicode] = true;
|
|
glyphs.push({ unicode: unicode, code: cid });
|
|
ids.push(i);
|
|
}
|
|
} else {
|
|
var cmapTable = readCMapTable(cmap, font);
|
|
|
|
glyphs = cmapTable.glyphs;
|
|
ids = cmapTable.ids;
|
|
|
|
var hasShortCmap = !!cmapTable.hasShortCmap;
|
|
var toFontChar = this.toFontChar;
|
|
|
|
if (hasShortCmap && ids.length == numGlyphs) {
|
|
// Fixes the short cmap tables -- some generators use incorrect
|
|
// glyph id.
|
|
for (var i = 0, ii = ids.length; i < ii; i++)
|
|
ids[i] = i;
|
|
}
|
|
|
|
var unusedUnicode = kCmapGlyphOffset;
|
|
var glyphNames = properties.glyphNames || [];
|
|
var encoding = properties.baseEncoding;
|
|
var differences = properties.differences;
|
|
if (toFontChar && toFontChar.length > 0) {
|
|
// checking if cmap is just identity map
|
|
var isIdentity = true;
|
|
for (var i = 0, ii = glyphs.length; i < ii; i++) {
|
|
if (glyphs[i].unicode != i + 1) {
|
|
isIdentity = false;
|
|
break;
|
|
}
|
|
}
|
|
// if it is, replacing with meaningful toUnicode values
|
|
if (isIdentity && !this.isSymbolicFont) {
|
|
var usedUnicodes = [], unassignedUnicodeItems = [];
|
|
for (var i = 0, ii = glyphs.length; i < ii; i++) {
|
|
var unicode = toFontChar[i + 1];
|
|
if (!unicode || typeof unicode !== 'number' ||
|
|
unicode in usedUnicodes) {
|
|
unassignedUnicodeItems.push(i);
|
|
continue;
|
|
}
|
|
glyphs[i].unicode = unicode;
|
|
usedUnicodes[unicode] = true;
|
|
}
|
|
for (var j = 0, jj = unassignedUnicodeItems.length; j < jj; j++) {
|
|
var i = unassignedUnicodeItems[j];
|
|
while (unusedUnicode in usedUnicodes)
|
|
unusedUnicode++;
|
|
var cid = i + 1;
|
|
// override only if unicode mapping is not specified
|
|
if (!(cid in toFontChar))
|
|
toFontChar[cid] = unusedUnicode;
|
|
glyphs[i].unicode = unusedUnicode++;
|
|
}
|
|
this.useToFontChar = true;
|
|
}
|
|
}
|
|
|
|
// remove glyph references outside range of avaialable glyphs or empty
|
|
var glyphsRemoved = 0;
|
|
for (var i = ids.length - 1; i >= 0; i--) {
|
|
if (ids[i] < numGlyphs &&
|
|
(!emptyGlyphIds[ids[i]] || this.isSymbolicFont))
|
|
continue;
|
|
ids.splice(i, 1);
|
|
glyphs.splice(i, 1);
|
|
glyphsRemoved++;
|
|
}
|
|
|
|
// checking if it's a "true" symbolic font
|
|
if (this.isSymbolicFont) {
|
|
var minUnicode = 0xFFFF, maxUnicode = 0;
|
|
for (var i = 0, ii = glyphs.length; i < ii; i++) {
|
|
var unicode = glyphs[i].unicode;
|
|
minUnicode = Math.min(minUnicode, unicode);
|
|
maxUnicode = Math.max(maxUnicode, unicode);
|
|
}
|
|
// high byte must be the same for min and max unicodes
|
|
if ((maxUnicode & 0xFF00) != (minUnicode & 0xFF00))
|
|
this.isSymbolicFont = false;
|
|
}
|
|
|
|
// heuristics: if removed more than 10 glyphs encoding WinAnsiEncoding
|
|
// does not set properly (broken PDFs have about 100 removed glyphs)
|
|
if (glyphsRemoved > 10) {
|
|
warn('Switching TrueType encoding to MacRomanEncoding for ' +
|
|
this.name + ' font');
|
|
encoding = Encodings.MacRomanEncoding;
|
|
}
|
|
|
|
if (hasShortCmap && this.hasEncoding && !this.isSymbolicFont) {
|
|
// Re-encode short map encoding to unicode -- that simplifies the
|
|
// resolution of MacRoman encoded glyphs logic for TrueType fonts:
|
|
// copying all characters to private use area, all mapping all known
|
|
// glyphs to the unicodes. The glyphs and ids arrays will grow.
|
|
var usedUnicodes = [];
|
|
for (var i = 0, ii = glyphs.length; i < ii; i++) {
|
|
var code = glyphs[i].unicode;
|
|
var gid = ids[i];
|
|
glyphs[i].unicode += kCmapGlyphOffset;
|
|
toFontChar[code] = glyphs[i].unicode;
|
|
|
|
var glyphName = glyphNames[gid] || encoding[code];
|
|
if (glyphName in GlyphsUnicode) {
|
|
var unicode = GlyphsUnicode[glyphName];
|
|
if (unicode in usedUnicodes)
|
|
continue;
|
|
|
|
usedUnicodes[unicode] = true;
|
|
glyphs.push({
|
|
unicode: unicode,
|
|
code: glyphs[i].code
|
|
});
|
|
ids.push(gid);
|
|
toFontChar[code] = unicode;
|
|
}
|
|
}
|
|
this.useToFontChar = true;
|
|
} else if (!this.isSymbolicFont && (this.hasEncoding ||
|
|
properties.glyphNames || differences.length > 0)) {
|
|
// Re-encode cmap encoding to unicode, based on the 'post' table data
|
|
// diffrence array or base encoding
|
|
var reverseMap = [];
|
|
for (var i = 0, ii = glyphs.length; i < ii; i++)
|
|
reverseMap[glyphs[i].unicode] = i;
|
|
|
|
var newGlyphUnicodes = [];
|
|
for (var i = 0, ii = glyphs.length; i < ii; i++) {
|
|
var code = glyphs[i].unicode;
|
|
var changeCode = false;
|
|
var gid = ids[i];
|
|
|
|
var glyphName = glyphNames[gid];
|
|
if (!glyphName) {
|
|
glyphName = differences[code] || encoding[code];
|
|
changeCode = true;
|
|
}
|
|
if (glyphName in GlyphsUnicode) {
|
|
var unicode = GlyphsUnicode[glyphName];
|
|
if (!unicode || reverseMap[unicode] === i)
|
|
continue; // unknown glyph name or in its own place
|
|
|
|
newGlyphUnicodes[i] = unicode;
|
|
if (changeCode)
|
|
toFontChar[code] = unicode;
|
|
delete reverseMap[code];
|
|
}
|
|
}
|
|
for (var index in newGlyphUnicodes) {
|
|
if (newGlyphUnicodes.hasOwnProperty(index)) {
|
|
var unicode = newGlyphUnicodes[index];
|
|
if (reverseMap[unicode]) {
|
|
// avoiding assigning to the same unicode
|
|
glyphs[index].unicode = unusedUnicode++;
|
|
continue;
|
|
}
|
|
glyphs[index].unicode = unicode;
|
|
reverseMap[unicode] = index;
|
|
}
|
|
}
|
|
this.useToFontChar = true;
|
|
}
|
|
|
|
// Moving all symbolic font glyphs into 0xF000 - 0xF0FF range.
|
|
if (this.isSymbolicFont) {
|
|
for (var i = 0, ii = glyphs.length; i < ii; i++) {
|
|
var code = glyphs[i].unicode & 0xFF;
|
|
var fontCharCode = kSymbolicFontGlyphOffset | code;
|
|
glyphs[i].unicode = toFontChar[code] = fontCharCode;
|
|
}
|
|
this.useToFontChar = true;
|
|
}
|
|
|
|
createGlyphNameMap(glyphs, ids, properties);
|
|
this.glyphNameMap = properties.glyphNameMap;
|
|
}
|
|
|
|
// Converting glyphs and ids into font's cmap table
|
|
cmap.data = createCMapTable(glyphs, ids);
|
|
var unicodeIsEnabled = [];
|
|
for (var i = 0, ii = glyphs.length; i < ii; i++) {
|
|
unicodeIsEnabled[glyphs[i].unicode] = true;
|
|
}
|
|
this.unicodeIsEnabled = unicodeIsEnabled;
|
|
|
|
if (!os2) {
|
|
// extract some more font properties from the OpenType head and
|
|
// hhea tables; yMin and descent value are always negative
|
|
var override = {
|
|
unitsPerEm: int16([head.data[18], head.data[19]]),
|
|
yMax: int16([head.data[42], head.data[43]]),
|
|
yMin: int16([head.data[38], head.data[39]]) - 0x10000,
|
|
ascent: int16([hhea.data[4], hhea.data[5]]),
|
|
descent: int16([hhea.data[6], hhea.data[7]]) - 0x10000
|
|
};
|
|
|
|
tables.push({
|
|
tag: 'OS/2',
|
|
data: stringToArray(createOS2Table(properties, glyphs, override))
|
|
});
|
|
}
|
|
|
|
// Rewrite the 'post' table if needed
|
|
if (requiredTables.indexOf('post') != -1) {
|
|
tables.push({
|
|
tag: 'post',
|
|
data: stringToArray(createPostTable(properties))
|
|
});
|
|
}
|
|
|
|
// Rewrite the 'name' table if needed
|
|
if (requiredTables.indexOf('name') != -1) {
|
|
tables.push({
|
|
tag: 'name',
|
|
data: stringToArray(createNameTable(this.name))
|
|
});
|
|
}
|
|
|
|
// Tables needs to be written by ascendant alphabetic order
|
|
tables.sort(function tables_sort(a, b) {
|
|
return (a.tag > b.tag) - (a.tag < b.tag);
|
|
});
|
|
|
|
// rewrite the tables but tweak offsets
|
|
for (var i = 0, ii = tables.length; i < ii; i++) {
|
|
var table = tables[i];
|
|
var data = [];
|
|
|
|
var tableData = table.data;
|
|
for (var j = 0, jj = tableData.length; j < jj; j++)
|
|
data.push(tableData[j]);
|
|
createTableEntry(ttf, table.tag, data);
|
|
}
|
|
|
|
// Add the table datas
|
|
for (var i = 0, ii = tables.length; i < ii; i++) {
|
|
var table = tables[i];
|
|
var tableData = table.data;
|
|
ttf.file += arrayToString(tableData);
|
|
|
|
// 4-byte aligned data
|
|
while (ttf.file.length & 3)
|
|
ttf.file += String.fromCharCode(0);
|
|
}
|
|
|
|
return stringToArray(ttf.file);
|
|
},
|
|
|
|
convert: function Font_convert(fontName, font, properties) {
|
|
function isFixedPitch(glyphs) {
|
|
for (var i = 0, ii = glyphs.length - 1; i < ii; i++) {
|
|
if (glyphs[i] != glyphs[i + 1])
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// The offsets object holds at the same time a representation of where
|
|
// to write the table entry information about a table and another offset
|
|
// representing the offset where to draw the actual data of a particular
|
|
// table
|
|
var kRequiredTablesCount = 9;
|
|
|
|
var otf = {
|
|
file: '',
|
|
virtualOffset: 9 * (4 * 4)
|
|
};
|
|
|
|
createOpenTypeHeader('\x4F\x54\x54\x4F', otf, 9);
|
|
|
|
var charstrings = font.charstrings;
|
|
properties.fixedPitch = isFixedPitch(charstrings);
|
|
|
|
var glyphNameMap = {};
|
|
for (var i = 0; i < charstrings.length; ++i) {
|
|
var charstring = charstrings[i];
|
|
glyphNameMap[charstring.glyph] = charstring.unicode;
|
|
}
|
|
this.glyphNameMap = glyphNameMap;
|
|
|
|
if (!properties.hasEncoding && (properties.subtype == 'Type1C' ||
|
|
properties.subtype == 'CIDFontType0C')) {
|
|
var encoding = [];
|
|
for (var i = 0; i < charstrings.length; ++i) {
|
|
var charstring = charstrings[i];
|
|
encoding[charstring.code] = charstring.glyph;
|
|
}
|
|
properties.baseEncoding = encoding;
|
|
}
|
|
if (properties.subtype == 'CIDFontType0C') {
|
|
var toFontChar = [];
|
|
for (var i = 0; i < charstrings.length; ++i) {
|
|
var charstring = charstrings[i];
|
|
toFontChar[charstring.code] = charstring.unicode;
|
|
}
|
|
this.toFontChar = toFontChar;
|
|
}
|
|
|
|
var fields = {
|
|
// PostScript Font Program
|
|
'CFF ': font.data,
|
|
|
|
// OS/2 and Windows Specific metrics
|
|
'OS/2': stringToArray(createOS2Table(properties, charstrings)),
|
|
|
|
// Character to glyphs mapping
|
|
'cmap': createCMapTable(charstrings.slice(),
|
|
('glyphIds' in font) ? font.glyphIds : null),
|
|
|
|
// Font header
|
|
'head': (function fontFieldsHead() {
|
|
return stringToArray(
|
|
'\x00\x01\x00\x00' + // Version number
|
|
'\x00\x00\x10\x00' + // fontRevision
|
|
'\x00\x00\x00\x00' + // checksumAdjustement
|
|
'\x5F\x0F\x3C\xF5' + // magicNumber
|
|
'\x00\x00' + // Flags
|
|
'\x03\xE8' + // unitsPerEM (defaulting to 1000)
|
|
'\x00\x00\x00\x00\x9e\x0b\x7e\x27' + // creation date
|
|
'\x00\x00\x00\x00\x9e\x0b\x7e\x27' + // modifification date
|
|
'\x00\x00' + // xMin
|
|
safeString16(properties.descent) + // yMin
|
|
'\x0F\xFF' + // xMax
|
|
safeString16(properties.ascent) + // yMax
|
|
string16(properties.italicAngle ? 2 : 0) + // macStyle
|
|
'\x00\x11' + // lowestRecPPEM
|
|
'\x00\x00' + // fontDirectionHint
|
|
'\x00\x00' + // indexToLocFormat
|
|
'\x00\x00'); // glyphDataFormat
|
|
})(),
|
|
|
|
// Horizontal header
|
|
'hhea': (function fontFieldsHhea() {
|
|
return stringToArray(
|
|
'\x00\x01\x00\x00' + // Version number
|
|
safeString16(properties.ascent) + // Typographic Ascent
|
|
safeString16(properties.descent) + // Typographic Descent
|
|
'\x00\x00' + // Line Gap
|
|
'\xFF\xFF' + // advanceWidthMax
|
|
'\x00\x00' + // minLeftSidebearing
|
|
'\x00\x00' + // minRightSidebearing
|
|
'\x00\x00' + // xMaxExtent
|
|
safeString16(properties.capHeight) + // caretSlopeRise
|
|
safeString16(Math.tan(properties.italicAngle) *
|
|
properties.xHeight) + // caretSlopeRun
|
|
'\x00\x00' + // caretOffset
|
|
'\x00\x00' + // -reserved-
|
|
'\x00\x00' + // -reserved-
|
|
'\x00\x00' + // -reserved-
|
|
'\x00\x00' + // -reserved-
|
|
'\x00\x00' + // metricDataFormat
|
|
string16(charstrings.length + 1)); // Number of HMetrics
|
|
})(),
|
|
|
|
// Horizontal metrics
|
|
'hmtx': (function fontFieldsHmtx() {
|
|
var hmtx = '\x00\x00\x00\x00'; // Fake .notdef
|
|
for (var i = 0, ii = charstrings.length; i < ii; i++) {
|
|
var charstring = charstrings[i];
|
|
var width = 'width' in charstring ? charstring.width : 0;
|
|
hmtx += string16(width) + string16(0);
|
|
}
|
|
return stringToArray(hmtx);
|
|
})(),
|
|
|
|
// Maximum profile
|
|
'maxp': (function fontFieldsMaxp() {
|
|
return stringToArray(
|
|
'\x00\x00\x50\x00' + // Version number
|
|
string16(charstrings.length + 1)); // Num of glyphs
|
|
})(),
|
|
|
|
// Naming tables
|
|
'name': stringToArray(createNameTable(fontName)),
|
|
|
|
// PostScript informations
|
|
'post': stringToArray(createPostTable(properties))
|
|
};
|
|
|
|
for (var field in fields)
|
|
createTableEntry(otf, field, fields[field]);
|
|
|
|
for (var field in fields) {
|
|
var table = fields[field];
|
|
otf.file += arrayToString(table);
|
|
}
|
|
|
|
return stringToArray(otf.file);
|
|
},
|
|
|
|
buildToFontChar: function Font_buildToFontChar(toUnicode) {
|
|
var result = [];
|
|
var unusedUnicode = kCmapGlyphOffset;
|
|
for (var i = 0, ii = toUnicode.length; i < ii; i++) {
|
|
var unicode = toUnicode[i];
|
|
var fontCharCode = typeof unicode === 'object' ? unusedUnicode++ :
|
|
unicode;
|
|
if (typeof unicode !== 'undefined')
|
|
result[i] = fontCharCode;
|
|
}
|
|
return result;
|
|
},
|
|
|
|
rebuildToUnicode: function Font_rebuildToUnicode(properties) {
|
|
var firstChar = properties.firstChar, lastChar = properties.lastChar;
|
|
var map = [];
|
|
if (properties.composite) {
|
|
var isIdentityMap = this.cidToUnicode.length == 0;
|
|
for (var i = firstChar, ii = lastChar; i <= ii; i++) {
|
|
// TODO missing map the character according font's CMap
|
|
var cid = i;
|
|
map[i] = isIdentityMap ? cid : this.cidToUnicode[cid];
|
|
}
|
|
} else {
|
|
for (var i = firstChar, ii = lastChar; i <= ii; i++) {
|
|
var glyph = properties.differences[i];
|
|
if (!glyph)
|
|
glyph = properties.baseEncoding[i];
|
|
if (!!glyph && (glyph in GlyphsUnicode))
|
|
map[i] = GlyphsUnicode[glyph];
|
|
}
|
|
}
|
|
this.toUnicode = map;
|
|
},
|
|
|
|
loadCidToUnicode: function Font_loadCidToUnicode(properties) {
|
|
if (!properties.cidSystemInfo)
|
|
return;
|
|
|
|
var cidToUnicodeMap = [], unicodeToCIDMap = [];
|
|
this.cidToUnicode = cidToUnicodeMap;
|
|
this.unicodeToCID = unicodeToCIDMap;
|
|
|
|
var cidSystemInfo = properties.cidSystemInfo;
|
|
var cidToUnicode;
|
|
if (cidSystemInfo) {
|
|
cidToUnicode = CIDToUnicodeMaps[
|
|
cidSystemInfo.registry + '-' + cidSystemInfo.ordering];
|
|
}
|
|
|
|
if (!cidToUnicode)
|
|
return; // identity encoding
|
|
|
|
var cid = 1, i, j, k, ii;
|
|
for (i = 0, ii = cidToUnicode.length; i < ii; ++i) {
|
|
var unicode = cidToUnicode[i];
|
|
if (isArray(unicode)) {
|
|
var length = unicode.length;
|
|
for (j = 0; j < length; j++) {
|
|
cidToUnicodeMap[cid] = unicode[j];
|
|
unicodeToCIDMap[unicode[j]] = cid;
|
|
}
|
|
cid++;
|
|
} else if (typeof unicode === 'object') {
|
|
var fillLength = unicode.f;
|
|
if (fillLength) {
|
|
k = unicode.c;
|
|
for (j = 0; j < fillLength; ++j) {
|
|
cidToUnicodeMap[cid] = k;
|
|
unicodeToCIDMap[k] = cid;
|
|
cid++;
|
|
k++;
|
|
}
|
|
} else
|
|
cid += unicode.s;
|
|
} else if (unicode) {
|
|
cidToUnicodeMap[cid] = unicode;
|
|
unicodeToCIDMap[unicode] = cid;
|
|
cid++;
|
|
} else
|
|
cid++;
|
|
}
|
|
},
|
|
|
|
bindDOM: function Font_bindDOM(data) {
|
|
var fontName = this.loadedName;
|
|
|
|
// Add the font-face rule to the document
|
|
var url = ('url(data:' + this.mimetype + ';base64,' +
|
|
window.btoa(data) + ');');
|
|
var rule = "@font-face { font-family:'" + fontName + "';src:" + url + '}';
|
|
|
|
var styleElement = document.getElementById('PDFJS_FONT_STYLE_TAG');
|
|
if (!styleElement) {
|
|
styleElement = document.createElement('style');
|
|
styleElement.id = 'PDFJS_FONT_STYLE_TAG';
|
|
document.documentElement.getElementsByTagName('head')[0].appendChild(
|
|
styleElement);
|
|
}
|
|
|
|
var styleSheet = styleElement.sheet;
|
|
styleSheet.insertRule(rule, styleSheet.cssRules.length);
|
|
|
|
if (PDFJS.pdfBug && FontInspector.enabled)
|
|
FontInspector.fontAdded(this, url);
|
|
|
|
return rule;
|
|
},
|
|
|
|
get spaceWidth() {
|
|
// trying to estimate space character width
|
|
var possibleSpaceReplacements = ['space', 'minus', 'one', 'i'];
|
|
var width;
|
|
for (var i = 0, ii = possibleSpaceReplacements.length; i < ii; i++) {
|
|
var glyphName = possibleSpaceReplacements[i];
|
|
// if possible, getting width by glyph name
|
|
if (glyphName in this.widths) {
|
|
width = this.widths[glyphName];
|
|
break;
|
|
}
|
|
var glyphUnicode = GlyphsUnicode[glyphName];
|
|
// finding the charcode via unicodeToCID map
|
|
var charcode = 0;
|
|
if (this.composite)
|
|
charcode = this.unicodeToCID[glyphUnicode];
|
|
// ... via toUnicode map
|
|
if (!charcode && 'toUnicode' in this)
|
|
charcode = this.toUnicode.indexOf(glyphUnicode);
|
|
// setting it to unicode if negative or undefined
|
|
if (!(charcode > 0))
|
|
charcode = glyphUnicode;
|
|
// trying to get width via charcode
|
|
width = this.widths[charcode];
|
|
if (width)
|
|
break; // the non-zero width found
|
|
}
|
|
width = (width || this.defaultWidth) * this.widthMultiplier;
|
|
return shadow(this, 'spaceWidth', width);
|
|
},
|
|
|
|
charToGlyph: function Font_charToGlyph(charcode) {
|
|
var fontCharCode, width, operatorList, disabled;
|
|
|
|
var width = this.widths[charcode];
|
|
|
|
switch (this.type) {
|
|
case 'CIDFontType0':
|
|
if (this.noUnicodeAdaptation) {
|
|
width = this.widths[this.unicodeToCID[charcode] || charcode];
|
|
fontCharCode = mapPrivateUseChars(charcode);
|
|
break;
|
|
}
|
|
fontCharCode = this.toFontChar[charcode] || charcode;
|
|
break;
|
|
case 'CIDFontType2':
|
|
if (this.noUnicodeAdaptation) {
|
|
width = this.widths[this.unicodeToCID[charcode] || charcode];
|
|
fontCharCode = mapPrivateUseChars(charcode);
|
|
break;
|
|
}
|
|
fontCharCode = this.toFontChar[charcode] || charcode;
|
|
break;
|
|
case 'Type1':
|
|
var glyphName = this.differences[charcode] || this.encoding[charcode];
|
|
if (!isNum(width))
|
|
width = this.widths[glyphName];
|
|
if (this.noUnicodeAdaptation) {
|
|
fontCharCode = mapPrivateUseChars(GlyphsUnicode[glyphName] ||
|
|
charcode);
|
|
break;
|
|
}
|
|
fontCharCode = this.glyphNameMap[glyphName] ||
|
|
GlyphsUnicode[glyphName] || charcode;
|
|
break;
|
|
case 'Type3':
|
|
var glyphName = this.differences[charcode] || this.encoding[charcode];
|
|
operatorList = this.charProcOperatorList[glyphName];
|
|
fontCharCode = charcode;
|
|
break;
|
|
case 'TrueType':
|
|
if (this.useToFontChar) {
|
|
fontCharCode = this.toFontChar[charcode] || charcode;
|
|
break;
|
|
}
|
|
var glyphName = this.differences[charcode] || this.encoding[charcode];
|
|
if (!glyphName)
|
|
glyphName = Encodings.StandardEncoding[charcode];
|
|
if (!isNum(width))
|
|
width = this.widths[glyphName];
|
|
if (this.noUnicodeAdaptation) {
|
|
fontCharCode = GlyphsUnicode[glyphName] || charcode;
|
|
break;
|
|
}
|
|
if (!this.hasEncoding || this.isSymbolicFont) {
|
|
fontCharCode = this.useToFontChar ? this.toFontChar[charcode] :
|
|
charcode;
|
|
break;
|
|
}
|
|
|
|
// MacRoman encoding address by re-encoding the cmap table
|
|
|
|
fontCharCode = glyphName in this.glyphNameMap ?
|
|
this.glyphNameMap[glyphName] : GlyphsUnicode[glyphName];
|
|
break;
|
|
default:
|
|
warn('Unsupported font type: ' + this.type);
|
|
break;
|
|
}
|
|
|
|
var unicodeChars = !('toUnicode' in this) ? charcode :
|
|
this.toUnicode[charcode] || charcode;
|
|
if (typeof unicodeChars === 'number')
|
|
unicodeChars = String.fromCharCode(unicodeChars);
|
|
|
|
width = (isNum(width) ? width : this.defaultWidth) * this.widthMultiplier;
|
|
disabled = this.unicodeIsEnabled ?
|
|
!this.unicodeIsEnabled[fontCharCode] : false;
|
|
|
|
return {
|
|
fontChar: String.fromCharCode(fontCharCode),
|
|
unicode: unicodeChars,
|
|
width: width,
|
|
disabled: disabled,
|
|
operatorList: operatorList
|
|
};
|
|
},
|
|
|
|
charsToGlyphs: function Font_charsToGlyphs(chars) {
|
|
var charsCache = this.charsCache;
|
|
var glyphs;
|
|
|
|
// if we translated this string before, just grab it from the cache
|
|
if (charsCache) {
|
|
glyphs = charsCache[chars];
|
|
if (glyphs)
|
|
return glyphs;
|
|
}
|
|
|
|
// lazily create the translation cache
|
|
if (!charsCache)
|
|
charsCache = this.charsCache = Object.create(null);
|
|
|
|
glyphs = [];
|
|
|
|
if (this.wideChars) {
|
|
// composite fonts have multi-byte strings convert the string from
|
|
// single-byte to multi-byte
|
|
// XXX assuming CIDFonts are two-byte - later need to extract the
|
|
// correct byte encoding according to the PDF spec
|
|
var length = chars.length - 1; // looping over two bytes at a time so
|
|
// loop should never end on the last byte
|
|
for (var i = 0; i < length; i++) {
|
|
var charcode = int16([chars.charCodeAt(i++), chars.charCodeAt(i)]);
|
|
var glyph = this.charToGlyph(charcode);
|
|
glyphs.push(glyph);
|
|
// placing null after each word break charcode (ASCII SPACE)
|
|
if (charcode == 0x20)
|
|
glyphs.push(null);
|
|
}
|
|
}
|
|
else {
|
|
for (var i = 0, ii = chars.length; i < ii; ++i) {
|
|
var charcode = chars.charCodeAt(i);
|
|
var glyph = this.charToGlyph(charcode);
|
|
glyphs.push(glyph);
|
|
if (charcode == 0x20)
|
|
glyphs.push(null);
|
|
}
|
|
}
|
|
|
|
// Enter the translated string into the cache
|
|
return (charsCache[chars] = glyphs);
|
|
}
|
|
};
|
|
|
|
return Font;
|
|
})();
|
|
|
|
var CallothersubrCmd = (function CallothersubrCmdClosure() {
|
|
function CallothersubrCmd(index) {
|
|
this.index = index;
|
|
}
|
|
|
|
return CallothersubrCmd;
|
|
})();
|
|
|
|
/*
|
|
* Type1Parser encapsulate the needed code for parsing a Type1 font
|
|
* program. Some of its logic depends on the Type2 charstrings
|
|
* structure.
|
|
*/
|
|
var Type1Parser = function type1Parser() {
|
|
/*
|
|
* Decrypt a Sequence of Ciphertext Bytes to Produce the Original Sequence
|
|
* of Plaintext Bytes. The function took a key as a parameter which can be
|
|
* for decrypting the eexec block of for decoding charStrings.
|
|
*/
|
|
var kEexecEncryptionKey = 55665;
|
|
var kCharStringsEncryptionKey = 4330;
|
|
|
|
function decrypt(stream, key, discardNumber) {
|
|
var r = key, c1 = 52845, c2 = 22719;
|
|
var decryptedString = [];
|
|
|
|
var value = '';
|
|
var count = stream.length;
|
|
for (var i = 0; i < count; i++) {
|
|
value = stream[i];
|
|
decryptedString[i] = value ^ (r >> 8);
|
|
r = ((value + r) * c1 + c2) & ((1 << 16) - 1);
|
|
}
|
|
return decryptedString.slice(discardNumber);
|
|
}
|
|
|
|
/*
|
|
* CharStrings are encoded following the the CharString Encoding sequence
|
|
* describe in Chapter 6 of the "Adobe Type1 Font Format" specification.
|
|
* The value in a byte indicates a command, a number, or subsequent bytes
|
|
* that are to be interpreted in a special way.
|
|
*
|
|
* CharString Number Encoding:
|
|
* A CharString byte containing the values from 32 through 255 inclusive
|
|
* indicate an integer. These values are decoded in four ranges.
|
|
*
|
|
* 1. A CharString byte containing a value, v, between 32 and 246 inclusive,
|
|
* indicate the integer v - 139. Thus, the integer values from -107 through
|
|
* 107 inclusive may be encoded in single byte.
|
|
*
|
|
* 2. A CharString byte containing a value, v, between 247 and 250 inclusive,
|
|
* indicates an integer involving the next byte, w, according to the formula:
|
|
* [(v - 247) x 256] + w + 108
|
|
*
|
|
* 3. A CharString byte containing a value, v, between 251 and 254 inclusive,
|
|
* indicates an integer involving the next byte, w, according to the formula:
|
|
* -[(v - 251) * 256] - w - 108
|
|
*
|
|
* 4. A CharString containing the value 255 indicates that the next 4 bytes
|
|
* are a two complement signed integer. The first of these bytes contains the
|
|
* highest order bits, the second byte contains the next higher order bits
|
|
* and the fourth byte contain the lowest order bits.
|
|
*
|
|
*
|
|
* CharString Command Encoding:
|
|
* CharStrings commands are encoded in 1 or 2 bytes.
|
|
*
|
|
* Single byte commands are encoded in 1 byte that contains a value between
|
|
* 0 and 31 inclusive.
|
|
* If a command byte contains the value 12, then the value in the next byte
|
|
* indicates a command. This "escape" mechanism allows many extra commands
|
|
* to be encoded and this encoding technique helps to minimize the length of
|
|
* the charStrings.
|
|
*/
|
|
var charStringDictionary = {
|
|
'1': 'hstem',
|
|
'3': 'vstem',
|
|
'4': 'vmoveto',
|
|
'5': 'rlineto',
|
|
'6': 'hlineto',
|
|
'7': 'vlineto',
|
|
'8': 'rrcurveto',
|
|
|
|
// closepath is a Type1 command that do not take argument and is useless
|
|
// in Type2 and it can simply be ignored.
|
|
'9': null, // closepath
|
|
|
|
'10': 'callsubr',
|
|
|
|
// return is normally used inside sub-routines to tells to the execution
|
|
// flow that it can be back to normal.
|
|
// During the translation process Type1 charstrings will be flattened and
|
|
// sub-routines will be embedded directly into the charstring directly, so
|
|
// this can be ignored safely.
|
|
'11': 'return',
|
|
|
|
'12': {
|
|
// dotsection is a Type1 command to specify some hinting feature for dots
|
|
// that do not take a parameter and it can safely be ignored for Type2.
|
|
'0': null, // dotsection
|
|
|
|
// [vh]stem3 are Type1 only and Type2 supports [vh]stem with multiple
|
|
// parameters, so instead of returning [vh]stem3 take a shortcut and
|
|
// return [vhstem] instead.
|
|
'1': 'vstem',
|
|
'2': 'hstem',
|
|
|
|
'6': 'endchar', // seac
|
|
// Type1 only command with command not (yet) built-in ,throw an error
|
|
'7': -1, // sbw
|
|
|
|
'11': 'sub',
|
|
'12': 'div',
|
|
|
|
// callothersubr is a mechanism to make calls on the postscript
|
|
// interpreter, this is not supported by Type2 charstring but hopefully
|
|
// most of the default commands can be ignored safely.
|
|
'16': 'callothersubr',
|
|
|
|
'17': 'pop',
|
|
|
|
// setcurrentpoint sets the current point to x, y without performing a
|
|
// moveto (this is a one shot positionning command). This is used only
|
|
// with the return of an OtherSubrs call.
|
|
// TODO Implement the OtherSubrs charstring embedding and replace this
|
|
// call by a no-op, like 2 'pop' commands for example.
|
|
'33': null // setcurrentpoint
|
|
},
|
|
'13': 'hsbw',
|
|
'14': 'endchar',
|
|
'21': 'rmoveto',
|
|
'22': 'hmoveto',
|
|
'30': 'vhcurveto',
|
|
'31': 'hvcurveto'
|
|
};
|
|
|
|
var kEscapeCommand = 12;
|
|
|
|
// Breaks up the stack by arguments and also calculates the value.
|
|
function breakUpArgs(stack, numArgs) {
|
|
var args = [];
|
|
var index = stack.length - 1;
|
|
for (var i = 0; i < numArgs; i++) {
|
|
if (index < 0) {
|
|
args.unshift({ arg: [0],
|
|
value: 0,
|
|
offset: 0 });
|
|
warn('Malformed charstring stack: not enough values on stack.');
|
|
continue;
|
|
}
|
|
var token = stack[index];
|
|
if (token === 'div') {
|
|
var a = stack[index - 2];
|
|
var b = stack[index - 1];
|
|
if (!isInt(a) || !isInt(b)) {
|
|
warn('Malformed charsting stack: expected ints on stack for div.');
|
|
a = 0;
|
|
b = 1;
|
|
}
|
|
args.unshift({ arg: [a, b, 'div'],
|
|
value: a / b,
|
|
offset: index - 2 });
|
|
index -= 3;
|
|
} else if (isInt(token)) {
|
|
args.unshift({ arg: stack.slice(index, index + 1),
|
|
value: token,
|
|
offset: index });
|
|
index--;
|
|
} else {
|
|
warn('Malformed charsting stack: found bad token ' + token + '.');
|
|
}
|
|
}
|
|
return args;
|
|
}
|
|
|
|
function decodeCharString(array) {
|
|
var charstring = [];
|
|
var lsb = 0;
|
|
var width = 0;
|
|
var flexState = 0;
|
|
|
|
var value = '';
|
|
var count = array.length;
|
|
for (var i = 0; i < count; i++) {
|
|
value = array[i];
|
|
|
|
if (value < 32) {
|
|
var command = null;
|
|
if (value == kEscapeCommand) {
|
|
var escape = array[++i];
|
|
|
|
// TODO Clean this code
|
|
if (escape == 16) {
|
|
var index = charstring.pop();
|
|
var argc = charstring.pop();
|
|
for (var j = 0; j < argc; j++)
|
|
charstring.push('drop');
|
|
|
|
// If the flex mechanism is not used in a font program, Adobe
|
|
// states that entries 0, 1 and 2 can simply be replaced by
|
|
// {}, which means that we can simply ignore them.
|
|
if (index < 3) {
|
|
continue;
|
|
}
|
|
|
|
// This is the same things about hint replacement, if it is not used
|
|
// entry 3 can be replaced by {3}
|
|
// TODO support hint replacment
|
|
if (index == 3) {
|
|
charstring.push(3);
|
|
i++;
|
|
continue;
|
|
}
|
|
|
|
assert(argc == 0, 'callothersubr with arguments is not supported');
|
|
charstring.push(new CallothersubrCmd(index));
|
|
continue;
|
|
} else if (escape == 17 || escape == 33) {
|
|
// pop or setcurrentpoint commands can be ignored
|
|
// since we are not doing callothersubr
|
|
continue;
|
|
} else if (escape == 6) {
|
|
// seac is like type 2's special endchar but it doesn't use the
|
|
// first argument asb, so remove it.
|
|
var args = breakUpArgs(charstring, 5);
|
|
var arg0 = args[0];
|
|
charstring.splice(arg0.offset, arg0.arg.length);
|
|
} else if (!kHintingEnabled && (escape == 1 || escape == 2)) {
|
|
charstring.push('drop', 'drop', 'drop', 'drop', 'drop', 'drop');
|
|
continue;
|
|
}
|
|
|
|
command = charStringDictionary['12'][escape];
|
|
} else {
|
|
if (value == 13) { // hsbw
|
|
var args = breakUpArgs(charstring, 2);
|
|
var arg0 = args[0];
|
|
var arg1 = args[1];
|
|
lsb = arg0.value;
|
|
width = arg1.value;
|
|
// To convert to type2 we have to move the width value to the first
|
|
// part of the charstring and then use hmoveto with lsb.
|
|
charstring = arg1.arg;
|
|
charstring = charstring.concat(arg0.arg);
|
|
charstring.push('hmoveto');
|
|
continue;
|
|
} else if (value == 10) { // callsubr
|
|
if (charstring[charstring.length - 1] < 3) { // subr #0..2
|
|
var subrNumber = charstring.pop();
|
|
switch (subrNumber) {
|
|
case 1:
|
|
flexState = 1; // prepare for flex coordinates
|
|
break;
|
|
case 2:
|
|
flexState = 2; // flex in progress
|
|
break;
|
|
case 0:
|
|
// type2 flex command does not need final coords
|
|
charstring.push('exch', 'drop', 'exch', 'drop');
|
|
charstring.push('flex');
|
|
flexState = 0;
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
} else if (value == 21 && flexState > 0) {
|
|
if (flexState > 1)
|
|
continue; // ignoring rmoveto
|
|
value = 5; // first segment replacing with rlineto
|
|
} else if (!kHintingEnabled && (value == 1 || value == 3)) {
|
|
charstring.push('drop', 'drop');
|
|
continue;
|
|
}
|
|
command = charStringDictionary[value];
|
|
}
|
|
|
|
// Some charstring commands are meaningless in Type2 and will return
|
|
// a null, let's just ignored them
|
|
if (!command && i < count) {
|
|
continue;
|
|
} else if (!command) {
|
|
break;
|
|
} else if (command == -1) {
|
|
warn('Support for Type1 command ' + value +
|
|
' (' + escape + ') is not implemented in charstring: ' +
|
|
charstring);
|
|
if (value == 12) {
|
|
// we know how to ignore only some the Type1 commands
|
|
switch (escape) {
|
|
case 7:
|
|
charstring.push('drop', 'drop', 'drop', 'drop');
|
|
continue;
|
|
case 8:
|
|
charstring.push('drop');
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
value = command;
|
|
} else if (value <= 246) {
|
|
value = value - 139;
|
|
} else if (value <= 250) {
|
|
value = ((value - 247) * 256) + array[++i] + 108;
|
|
} else if (value <= 254) {
|
|
value = -((value - 251) * 256) - array[++i] - 108;
|
|
} else {
|
|
value = (array[++i] & 0xff) << 24 | (array[++i] & 0xff) << 16 |
|
|
(array[++i] & 0xff) << 8 | (array[++i] & 0xff) << 0;
|
|
}
|
|
|
|
charstring.push(value);
|
|
}
|
|
|
|
return { charstring: charstring, width: width, lsb: lsb };
|
|
}
|
|
|
|
/*
|
|
* Returns an object containing a Subrs array and a CharStrings
|
|
* array extracted from and eexec encrypted block of data
|
|
*/
|
|
function readNumberArray(str, index) {
|
|
var start = index;
|
|
while (str[index++] != '[')
|
|
start++;
|
|
start++;
|
|
|
|
var count = 0;
|
|
while (str[index++] != ']')
|
|
count++;
|
|
|
|
str = str.substr(start, count);
|
|
|
|
str = str.trim();
|
|
// Remove adjacent spaces
|
|
str = str.replace(/\s+/g, ' ');
|
|
|
|
var array = str.split(' ');
|
|
for (var i = 0, ii = array.length; i < ii; i++)
|
|
array[i] = parseFloat(array[i] || 0);
|
|
return array;
|
|
}
|
|
|
|
function readNumber(str, index) {
|
|
while (str[index] == ' ')
|
|
index++;
|
|
|
|
var start = index;
|
|
|
|
var count = 0;
|
|
while (str[index++] != ' ')
|
|
count++;
|
|
|
|
return parseFloat(str.substr(start, count) || 0);
|
|
}
|
|
|
|
function isSeparator(c) {
|
|
return c == ' ' || c == '\n' || c == '\x0d';
|
|
}
|
|
|
|
this.extractFontProgram = function Type1Parser_extractFontProgram(stream) {
|
|
var eexec = decrypt(stream, kEexecEncryptionKey, 4);
|
|
var eexecStr = '';
|
|
for (var i = 0, ii = eexec.length; i < ii; i++)
|
|
eexecStr += String.fromCharCode(eexec[i]);
|
|
|
|
var glyphsSection = false, subrsSection = false;
|
|
var program = {
|
|
subrs: [],
|
|
charstrings: [],
|
|
properties: {
|
|
'privateData': {
|
|
'lenIV': 4
|
|
}
|
|
}
|
|
};
|
|
|
|
var glyph = '';
|
|
var token = '';
|
|
var length = 0;
|
|
|
|
var c = '';
|
|
var count = eexecStr.length;
|
|
for (var i = 0; i < count; i++) {
|
|
var getToken = function getToken() {
|
|
while (i < count && isSeparator(eexecStr[i]))
|
|
++i;
|
|
|
|
var token = '';
|
|
while (i < count && !isSeparator(eexecStr[i]))
|
|
token += eexecStr[i++];
|
|
|
|
return token;
|
|
};
|
|
var c = eexecStr[i];
|
|
|
|
if ((glyphsSection || subrsSection) &&
|
|
(token == 'RD' || token == '-|')) {
|
|
i++;
|
|
var data = eexec.slice(i, i + length);
|
|
var lenIV = program.properties.privateData['lenIV'];
|
|
var encoded = decrypt(data, kCharStringsEncryptionKey, lenIV);
|
|
var str = decodeCharString(encoded);
|
|
|
|
if (glyphsSection) {
|
|
program.charstrings.push({
|
|
glyph: glyph,
|
|
data: str.charstring,
|
|
lsb: str.lsb,
|
|
width: str.width
|
|
});
|
|
} else {
|
|
program.subrs.push(str.charstring);
|
|
}
|
|
i += length;
|
|
token = '';
|
|
} else if (isSeparator(c)) {
|
|
length = parseInt(token, 10);
|
|
token = '';
|
|
} else {
|
|
token += c;
|
|
if (!glyphsSection) {
|
|
switch (token) {
|
|
case '/CharString':
|
|
glyphsSection = true;
|
|
break;
|
|
case '/Subrs':
|
|
++i;
|
|
var num = parseInt(getToken(), 10);
|
|
getToken(); // read in 'array'
|
|
for (var j = 0; j < num; ++j) {
|
|
var t = getToken(); // read in 'dup'
|
|
if (t == 'ND' || t == '|-' || t == 'noaccess')
|
|
break;
|
|
var index = parseInt(getToken(), 10);
|
|
if (index > j)
|
|
j = index;
|
|
var length = parseInt(getToken(), 10);
|
|
getToken(); // read in 'RD'
|
|
var data = eexec.slice(i + 1, i + 1 + length);
|
|
var lenIV = program.properties.privateData['lenIV'];
|
|
var encoded = decrypt(data, kCharStringsEncryptionKey, lenIV);
|
|
var str = decodeCharString(encoded);
|
|
i = i + 1 + length;
|
|
t = getToken(); // read in 'NP'
|
|
if (t == 'noaccess')
|
|
getToken(); // read in 'put'
|
|
program.subrs[index] = str.charstring;
|
|
}
|
|
break;
|
|
case '/BlueValues':
|
|
case '/OtherBlues':
|
|
case '/FamilyBlues':
|
|
case '/FamilyOtherBlues':
|
|
var blueArray = readNumberArray(eexecStr, i + 1);
|
|
if (blueArray.length > 0 && (blueArray.length % 2) == 0)
|
|
program.properties.privateData[token.substring(1)] = blueArray;
|
|
break;
|
|
case '/StemSnapH':
|
|
case '/StemSnapV':
|
|
program.properties.privateData[token.substring(1)] =
|
|
readNumberArray(eexecStr, i + 1);
|
|
break;
|
|
case '/StdHW':
|
|
case '/StdVW':
|
|
program.properties.privateData[token.substring(1)] =
|
|
readNumberArray(eexecStr, i + 2)[0];
|
|
break;
|
|
case '/BlueShift':
|
|
case '/lenIV':
|
|
case '/BlueFuzz':
|
|
case '/BlueScale':
|
|
case '/LanguageGroup':
|
|
case '/ExpansionFactor':
|
|
program.properties.privateData[token.substring(1)] =
|
|
readNumber(eexecStr, i + 1);
|
|
break;
|
|
}
|
|
} else if (c == '/') {
|
|
token = glyph = '';
|
|
while ((c = eexecStr[++i]) != ' ')
|
|
glyph += c;
|
|
}
|
|
}
|
|
}
|
|
|
|
return program;
|
|
};
|
|
|
|
this.extractFontHeader = function Type1Parser_extractFontHeader(stream,
|
|
properties) {
|
|
var headerString = '';
|
|
for (var i = 0, ii = stream.length; i < ii; i++)
|
|
headerString += String.fromCharCode(stream[i]);
|
|
|
|
var token = '';
|
|
var count = headerString.length;
|
|
for (var i = 0; i < count; i++) {
|
|
var getToken = function getToken() {
|
|
var character = headerString[i];
|
|
while (i < count && (isSeparator(character) || character == '/'))
|
|
character = headerString[++i];
|
|
|
|
var token = '';
|
|
while (i < count && !(isSeparator(character) || character == '/')) {
|
|
token += character;
|
|
character = headerString[++i];
|
|
}
|
|
|
|
return token;
|
|
};
|
|
|
|
var c = headerString[i];
|
|
if (isSeparator(c)) {
|
|
switch (token) {
|
|
case '/FontMatrix':
|
|
var matrix = readNumberArray(headerString, i + 1);
|
|
|
|
// The FontMatrix is in unitPerEm, so make it pixels
|
|
for (var j = 0, jj = matrix.length; j < jj; j++)
|
|
matrix[j] *= 1000;
|
|
|
|
// Make the angle into the right direction
|
|
matrix[2] *= -1;
|
|
|
|
properties.fontMatrix = matrix;
|
|
break;
|
|
case '/Encoding':
|
|
var encodingArg = getToken();
|
|
var encoding;
|
|
if (!/^\d+$/.test(encodingArg)) {
|
|
// encoding name is specified
|
|
encoding = Encodings[encodingArg];
|
|
} else {
|
|
encoding = [];
|
|
var size = parseInt(encodingArg, 10);
|
|
getToken(); // read in 'array'
|
|
|
|
for (var j = 0; j < size; j++) {
|
|
var token = getToken();
|
|
if (token == 'dup') {
|
|
var index = parseInt(getToken(), 10);
|
|
var glyph = getToken();
|
|
encoding[index] = glyph;
|
|
getToken(); // read the in 'put'
|
|
}
|
|
}
|
|
}
|
|
if (!properties.hasEncoding && encoding) {
|
|
properties.baseEncoding = encoding;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
token = '';
|
|
} else {
|
|
token += c;
|
|
}
|
|
}
|
|
};
|
|
};
|
|
|
|
/**
|
|
* The CFF class takes a Type1 file and wrap it into a
|
|
* 'Compact Font Format' which itself embed Type2 charstrings.
|
|
*/
|
|
var CFFStandardStrings = [
|
|
'.notdef', 'space', 'exclam', 'quotedbl', 'numbersign', 'dollar', 'percent',
|
|
'ampersand', 'quoteright', 'parenleft', 'parenright', 'asterisk', 'plus',
|
|
'comma', 'hyphen', 'period', 'slash', 'zero', 'one', 'two', 'three', 'four',
|
|
'five', 'six', 'seven', 'eight', 'nine', 'colon', 'semicolon', 'less',
|
|
'equal', 'greater', 'question', 'at', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
|
|
'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
|
|
'X', 'Y', 'Z', 'bracketleft', 'backslash', 'bracketright', 'asciicircum',
|
|
'underscore', 'quoteleft', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
|
|
'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y',
|
|
'z', 'braceleft', 'bar', 'braceright', 'asciitilde', 'exclamdown', 'cent',
|
|
'sterling', 'fraction', 'yen', 'florin', 'section', 'currency',
|
|
'quotesingle', 'quotedblleft', 'guillemotleft', 'guilsinglleft',
|
|
'guilsinglright', 'fi', 'fl', 'endash', 'dagger', 'daggerdbl',
|
|
'periodcentered', 'paragraph', 'bullet', 'quotesinglbase', 'quotedblbase',
|
|
'quotedblright', 'guillemotright', 'ellipsis', 'perthousand', 'questiondown',
|
|
'grave', 'acute', 'circumflex', 'tilde', 'macron', 'breve', 'dotaccent',
|
|
'dieresis', 'ring', 'cedilla', 'hungarumlaut', 'ogonek', 'caron', 'emdash',
|
|
'AE', 'ordfeminine', 'Lslash', 'Oslash', 'OE', 'ordmasculine', 'ae',
|
|
'dotlessi', 'lslash', 'oslash', 'oe', 'germandbls', 'onesuperior',
|
|
'logicalnot', 'mu', 'trademark', 'Eth', 'onehalf', 'plusminus', 'Thorn',
|
|
'onequarter', 'divide', 'brokenbar', 'degree', 'thorn', 'threequarters',
|
|
'twosuperior', 'registered', 'minus', 'eth', 'multiply', 'threesuperior',
|
|
'copyright', 'Aacute', 'Acircumflex', 'Adieresis', 'Agrave', 'Aring',
|
|
'Atilde', 'Ccedilla', 'Eacute', 'Ecircumflex', 'Edieresis', 'Egrave',
|
|
'Iacute', 'Icircumflex', 'Idieresis', 'Igrave', 'Ntilde', 'Oacute',
|
|
'Ocircumflex', 'Odieresis', 'Ograve', 'Otilde', 'Scaron', 'Uacute',
|
|
'Ucircumflex', 'Udieresis', 'Ugrave', 'Yacute', 'Ydieresis', 'Zcaron',
|
|
'aacute', 'acircumflex', 'adieresis', 'agrave', 'aring', 'atilde',
|
|
'ccedilla', 'eacute', 'ecircumflex', 'edieresis', 'egrave', 'iacute',
|
|
'icircumflex', 'idieresis', 'igrave', 'ntilde', 'oacute', 'ocircumflex',
|
|
'odieresis', 'ograve', 'otilde', 'scaron', 'uacute', 'ucircumflex',
|
|
'udieresis', 'ugrave', 'yacute', 'ydieresis', 'zcaron', 'exclamsmall',
|
|
'Hungarumlautsmall', 'dollaroldstyle', 'dollarsuperior', 'ampersandsmall',
|
|
'Acutesmall', 'parenleftsuperior', 'parenrightsuperior', '266 ff',
|
|
'onedotenleader', 'zerooldstyle', 'oneoldstyle', 'twooldstyle',
|
|
'threeoldstyle', 'fouroldstyle', 'fiveoldstyle', 'sixoldstyle',
|
|
'sevenoldstyle', 'eightoldstyle', 'nineoldstyle', 'commasuperior',
|
|
'threequartersemdash', 'periodsuperior', 'questionsmall', 'asuperior',
|
|
'bsuperior', 'centsuperior', 'dsuperior', 'esuperior', 'isuperior',
|
|
'lsuperior', 'msuperior', 'nsuperior', 'osuperior', 'rsuperior', 'ssuperior',
|
|
'tsuperior', 'ff', 'ffi', 'ffl', 'parenleftinferior', 'parenrightinferior',
|
|
'Circumflexsmall', 'hyphensuperior', 'Gravesmall', 'Asmall', 'Bsmall',
|
|
'Csmall', 'Dsmall', 'Esmall', 'Fsmall', 'Gsmall', 'Hsmall', 'Ismall',
|
|
'Jsmall', 'Ksmall', 'Lsmall', 'Msmall', 'Nsmall', 'Osmall', 'Psmall',
|
|
'Qsmall', 'Rsmall', 'Ssmall', 'Tsmall', 'Usmall', 'Vsmall', 'Wsmall',
|
|
'Xsmall', 'Ysmall', 'Zsmall', 'colonmonetary', 'onefitted', 'rupiah',
|
|
'Tildesmall', 'exclamdownsmall', 'centoldstyle', 'Lslashsmall',
|
|
'Scaronsmall', 'Zcaronsmall', 'Dieresissmall', 'Brevesmall', 'Caronsmall',
|
|
'Dotaccentsmall', 'Macronsmall', 'figuredash', 'hypheninferior',
|
|
'Ogoneksmall', 'Ringsmall', 'Cedillasmall', 'questiondownsmall', 'oneeighth',
|
|
'threeeighths', 'fiveeighths', 'seveneighths', 'onethird', 'twothirds',
|
|
'zerosuperior', 'foursuperior', 'fivesuperior', 'sixsuperior',
|
|
'sevensuperior', 'eightsuperior', 'ninesuperior', 'zeroinferior',
|
|
'oneinferior', 'twoinferior', 'threeinferior', 'fourinferior',
|
|
'fiveinferior', 'sixinferior', 'seveninferior', 'eightinferior',
|
|
'nineinferior', 'centinferior', 'dollarinferior', 'periodinferior',
|
|
'commainferior', 'Agravesmall', 'Aacutesmall', 'Acircumflexsmall',
|
|
'Atildesmall', 'Adieresissmall', 'Aringsmall', 'AEsmall', 'Ccedillasmall',
|
|
'Egravesmall', 'Eacutesmall', 'Ecircumflexsmall', 'Edieresissmall',
|
|
'Igravesmall', 'Iacutesmall', 'Icircumflexsmall', 'Idieresissmall',
|
|
'Ethsmall', 'Ntildesmall', 'Ogravesmall', 'Oacutesmall', 'Ocircumflexsmall',
|
|
'Otildesmall', 'Odieresissmall', 'OEsmall', 'Oslashsmall', 'Ugravesmall',
|
|
'Uacutesmall', 'Ucircumflexsmall', 'Udieresissmall', 'Yacutesmall',
|
|
'Thornsmall', 'Ydieresissmall', '001.000', '001.001', '001.002', '001.003',
|
|
'Black', 'Bold', 'Book', 'Light', 'Medium', 'Regular', 'Roman', 'Semibold'
|
|
];
|
|
|
|
var type1Parser = new Type1Parser();
|
|
|
|
// Type1Font is also a CIDFontType0.
|
|
var Type1Font = function Type1Font(name, file, properties) {
|
|
// Get the data block containing glyphs and subrs informations
|
|
var headerBlock = file.getBytes(properties.length1);
|
|
type1Parser.extractFontHeader(headerBlock, properties);
|
|
|
|
// Decrypt the data blocks and retrieve it's content
|
|
var eexecBlock = file.getBytes(properties.length2);
|
|
var data = type1Parser.extractFontProgram(eexecBlock);
|
|
for (var info in data.properties)
|
|
properties[info] = data.properties[info];
|
|
|
|
var charstrings = this.getOrderedCharStrings(data.charstrings, properties);
|
|
var type2Charstrings = this.getType2Charstrings(charstrings);
|
|
var subrs = this.getType2Subrs(data.subrs);
|
|
|
|
this.charstrings = charstrings;
|
|
this.data = this.wrap(name, type2Charstrings, this.charstrings,
|
|
subrs, properties);
|
|
};
|
|
|
|
Type1Font.prototype = {
|
|
createCFFIndexHeader: function Type1Font_createCFFIndexHeader(objects,
|
|
isByte) {
|
|
// First 2 bytes contains the number of objects contained into this index
|
|
var count = objects.length;
|
|
|
|
// If there is no object, just create an array saying that with another
|
|
// offset byte.
|
|
if (count == 0)
|
|
return '\x00\x00\x00';
|
|
|
|
var data = String.fromCharCode((count >> 8) & 0xFF, count & 0xff);
|
|
|
|
// Next byte contains the offset size use to reference object in the file
|
|
// Actually we're using 0x04 to be sure to be able to store everything
|
|
// without thinking of it while coding.
|
|
data += '\x04';
|
|
|
|
// Add another offset after this one because we need a new offset
|
|
var relativeOffset = 1;
|
|
for (var i = 0; i < count + 1; i++) {
|
|
data += String.fromCharCode((relativeOffset >>> 24) & 0xFF,
|
|
(relativeOffset >> 16) & 0xFF,
|
|
(relativeOffset >> 8) & 0xFF,
|
|
relativeOffset & 0xFF);
|
|
|
|
if (objects[i])
|
|
relativeOffset += objects[i].length;
|
|
}
|
|
|
|
for (var i = 0; i < count; i++) {
|
|
for (var j = 0, jj = objects[i].length; j < jj; j++)
|
|
data += isByte ? String.fromCharCode(objects[i][j] & 0xFF) :
|
|
objects[i][j];
|
|
}
|
|
return data;
|
|
},
|
|
|
|
encodeNumber: function Type1Font_encodeNumber(value) {
|
|
// some of the fonts has ouf-of-range values
|
|
// they are just arithmetic overflows
|
|
// make sanitizer happy
|
|
value |= 0;
|
|
if (value >= -32768 && value <= 32767) {
|
|
return '\x1c' +
|
|
String.fromCharCode((value >> 8) & 0xFF) +
|
|
String.fromCharCode(value & 0xFF);
|
|
} else {
|
|
return '\x1d' +
|
|
String.fromCharCode((value >> 24) & 0xFF) +
|
|
String.fromCharCode((value >> 16) & 0xFF) +
|
|
String.fromCharCode((value >> 8) & 0xFF) +
|
|
String.fromCharCode(value & 0xFF);
|
|
}
|
|
},
|
|
|
|
getOrderedCharStrings: function Type1Font_getOrderedCharStrings(glyphs,
|
|
properties) {
|
|
var charstrings = [];
|
|
var i, length, glyphName;
|
|
var unusedUnicode = kCmapGlyphOffset;
|
|
for (i = 0, length = glyphs.length; i < length; i++) {
|
|
var item = glyphs[i];
|
|
var glyphName = item.glyph;
|
|
var unicode = glyphName in GlyphsUnicode ?
|
|
GlyphsUnicode[glyphName] : unusedUnicode++;
|
|
charstrings.push({
|
|
glyph: glyphName,
|
|
unicode: unicode,
|
|
gid: i,
|
|
charstring: item.data,
|
|
width: item.width,
|
|
lsb: item.lsb
|
|
});
|
|
}
|
|
|
|
charstrings.sort(function charstrings_sort(a, b) {
|
|
return a.unicode - b.unicode;
|
|
});
|
|
return charstrings;
|
|
},
|
|
|
|
getType2Charstrings: function Type1Font_getType2Charstrings(
|
|
type1Subrs) {
|
|
var type2Charstrings = [];
|
|
var count = type1Subrs.length;
|
|
var type1Charstrings = [];
|
|
for (var i = 0; i < count; i++)
|
|
type1Charstrings.push(type1Subrs[i].charstring.slice());
|
|
for (var i = 0; i < count; i++)
|
|
type2Charstrings.push(this.flattenCharstring(type1Charstrings, i));
|
|
return type2Charstrings;
|
|
},
|
|
|
|
getType2Subrs: function Type1Font_getType2Subrs(type1Subrs) {
|
|
var bias = 0;
|
|
var count = type1Subrs.length;
|
|
if (count < 1133)
|
|
bias = 107;
|
|
else if (count < 33769)
|
|
bias = 1131;
|
|
else
|
|
bias = 32768;
|
|
|
|
// Add a bunch of empty subrs to deal with the Type2 bias
|
|
var type2Subrs = [];
|
|
for (var i = 0; i < bias; i++)
|
|
type2Subrs.push([0x0B]);
|
|
|
|
for (var i = 0; i < count; i++) {
|
|
type2Subrs.push(this.flattenCharstring(type1Subrs, i));
|
|
}
|
|
|
|
return type2Subrs;
|
|
},
|
|
|
|
/*
|
|
* Flatten the commands by interpreting the postscript code and replacing
|
|
* every 'callsubr', 'callothersubr' by the real commands.
|
|
*/
|
|
commandsMap: {
|
|
'hstem': 1,
|
|
'vstem': 3,
|
|
'vmoveto': 4,
|
|
'rlineto': 5,
|
|
'hlineto': 6,
|
|
'vlineto': 7,
|
|
'rrcurveto': 8,
|
|
'callsubr': 10,
|
|
'return': 11,
|
|
'sub': [12, 11],
|
|
'div': [12, 12],
|
|
'exch': [12, 28],
|
|
'flex': [12, 35],
|
|
'drop' : [12, 18],
|
|
'endchar': 14,
|
|
'rmoveto': 21,
|
|
'hmoveto': 22,
|
|
'vhcurveto': 30,
|
|
'hvcurveto': 31
|
|
},
|
|
|
|
flattenCharstring: function Type1Font_flattenCharstring(charstrings, index) {
|
|
var charstring = charstrings[index];
|
|
if (!charstring)
|
|
return [0x0B];
|
|
var map = this.commandsMap;
|
|
// charstring changes size - can't cache .length in loop
|
|
for (var i = 0; i < charstring.length; i++) {
|
|
var command = charstring[i];
|
|
if (command.charAt) {
|
|
var cmd = map[command];
|
|
assert(cmd, 'Unknow command: ' + command);
|
|
|
|
if (isArray(cmd))
|
|
charstring.splice(i++, 1, cmd[0], cmd[1]);
|
|
else
|
|
charstring[i] = cmd;
|
|
} else if (command instanceof CallothersubrCmd) {
|
|
var otherSubrCharstring = charstrings[command.index];
|
|
if (otherSubrCharstring) {
|
|
var lastCommand = otherSubrCharstring.indexOf('return');
|
|
if (lastCommand >= 0)
|
|
otherSubrCharstring = otherSubrCharstring.slice(0, lastCommand);
|
|
charstring.splice.apply(charstring,
|
|
[i, 1].concat(otherSubrCharstring));
|
|
} else
|
|
charstring.splice(i, 1); // ignoring empty subr call
|
|
i--;
|
|
} else {
|
|
// Type1 charstring use a division for number above 32000
|
|
if (command > 32000) {
|
|
var divisor = charstring[i + 1];
|
|
command /= divisor;
|
|
charstring.splice(i, 3, 28, command >> 8, command & 0xff);
|
|
} else {
|
|
charstring.splice(i, 1, 28, command >> 8, command & 0xff);
|
|
}
|
|
i += 2;
|
|
}
|
|
}
|
|
return charstring;
|
|
},
|
|
|
|
wrap: function Type1Font_wrap(name, glyphs, charstrings, subrs, properties) {
|
|
var fields = {
|
|
// major version, minor version, header size, offset size
|
|
'header': '\x01\x00\x04\x04',
|
|
|
|
'names': this.createCFFIndexHeader([name]),
|
|
|
|
'topDict': (function topDict(self) {
|
|
return function cffWrapTopDict() {
|
|
var header = '\x00\x01\x01\x01';
|
|
var dict =
|
|
'\xf8\x1b\x00' + // version
|
|
'\xf8\x1c\x01' + // Notice
|
|
'\xf8\x1d\x02' + // FullName
|
|
'\xf8\x1e\x03' + // FamilyName
|
|
'\xf8\x1f\x04' + // Weight
|
|
'\x1c\x00\x00\x10'; // Encoding
|
|
|
|
var boundingBox = properties.bbox;
|
|
for (var i = 0, ii = boundingBox.length; i < ii; i++)
|
|
dict += self.encodeNumber(boundingBox[i]);
|
|
dict += '\x05'; // FontBBox;
|
|
|
|
var offset = fields.header.length +
|
|
fields.names.length +
|
|
(header.length + 1) +
|
|
(dict.length + (4 + 4)) +
|
|
fields.strings.length +
|
|
fields.globalSubrs.length;
|
|
|
|
// If the offset if over 32767, encodeNumber is going to return
|
|
// 5 bytes to encode the position instead of 3.
|
|
if ((offset + fields.charstrings.length) > 32767) {
|
|
offset += 9;
|
|
} else {
|
|
offset += 7;
|
|
}
|
|
|
|
dict += self.encodeNumber(offset) + '\x0f'; // Charset
|
|
|
|
offset = offset + (glyphs.length * 2) + 1;
|
|
dict += self.encodeNumber(offset) + '\x11'; // Charstrings
|
|
|
|
offset = offset + fields.charstrings.length;
|
|
dict += self.encodeNumber(fields.privateData.length);
|
|
dict += self.encodeNumber(offset) + '\x12'; // Private
|
|
|
|
return header + String.fromCharCode(dict.length + 1) + dict;
|
|
};
|
|
})(this),
|
|
|
|
'strings': (function strings(self) {
|
|
var strings = [
|
|
'Version 0.11', // Version
|
|
'See original notice', // Notice
|
|
name, // FullName
|
|
name, // FamilyName
|
|
'Medium' // Weight
|
|
];
|
|
return self.createCFFIndexHeader(strings);
|
|
})(this),
|
|
|
|
'globalSubrs': this.createCFFIndexHeader([]),
|
|
|
|
'charset': (function charset(self) {
|
|
var charsetString = '\x00'; // Encoding
|
|
|
|
var count = glyphs.length;
|
|
for (var i = 0; i < count; i++) {
|
|
var index = CFFStandardStrings.indexOf(charstrings[i].glyph);
|
|
// Some characters like asterikmath && circlecopyrt are
|
|
// missing from the original strings, for the moment let's
|
|
// map them to .notdef and see later if it cause any
|
|
// problems
|
|
if (index == -1)
|
|
index = 0;
|
|
|
|
charsetString += String.fromCharCode(index >> 8, index & 0xff);
|
|
}
|
|
return charsetString;
|
|
})(this),
|
|
|
|
'charstrings': this.createCFFIndexHeader([[0x8B, 0x0E]].concat(glyphs),
|
|
true),
|
|
|
|
'privateData': (function cffWrapPrivate(self) {
|
|
var data =
|
|
'\x8b\x14' + // defaultWidth
|
|
'\x8b\x15'; // nominalWidth
|
|
var fieldMap = {
|
|
BlueValues: '\x06',
|
|
OtherBlues: '\x07',
|
|
FamilyBlues: '\x08',
|
|
FamilyOtherBlues: '\x09',
|
|
StemSnapH: '\x0c\x0c',
|
|
StemSnapV: '\x0c\x0d',
|
|
BlueShift: '\x0c\x0a',
|
|
BlueFuzz: '\x0c\x0b',
|
|
BlueScale: '\x0c\x09',
|
|
LanguageGroup: '\x0c\x11',
|
|
ExpansionFactor: '\x0c\x18'
|
|
};
|
|
for (var field in fieldMap) {
|
|
if (!properties.privateData.hasOwnProperty(field))
|
|
continue;
|
|
var value = properties.privateData[field];
|
|
|
|
if (isArray(value)) {
|
|
data += self.encodeNumber(value[0]);
|
|
for (var i = 1, ii = value.length; i < ii; i++)
|
|
data += self.encodeNumber(value[i] - value[i - 1]);
|
|
} else {
|
|
data += self.encodeNumber(value);
|
|
}
|
|
data += fieldMap[field];
|
|
}
|
|
|
|
data += self.encodeNumber(data.length + 4) + '\x13'; // Subrs offset
|
|
|
|
return data;
|
|
})(this),
|
|
|
|
'localSubrs': this.createCFFIndexHeader(subrs, true)
|
|
};
|
|
fields.topDict = fields.topDict();
|
|
|
|
|
|
var cff = [];
|
|
for (var index in fields) {
|
|
var field = fields[index];
|
|
for (var i = 0, ii = field.length; i < ii; i++)
|
|
cff.push(field.charCodeAt(i));
|
|
}
|
|
|
|
return cff;
|
|
}
|
|
};
|
|
|
|
var CFFFont = (function CFFFontClosure() {
|
|
function CFFFont(file, properties) {
|
|
this.properties = properties;
|
|
|
|
var parser = new CFFParser(file, properties);
|
|
var cff = parser.parse(true);
|
|
var compiler = new CFFCompiler(cff);
|
|
this.readExtra(cff);
|
|
try {
|
|
this.data = compiler.compile();
|
|
} catch (e) {
|
|
warn('Failed to compile font ' + properties.loadedName);
|
|
// There may have just been an issue with the compiler, set the data
|
|
// anyway and hope the font loaded.
|
|
this.data = file;
|
|
}
|
|
}
|
|
|
|
CFFFont.prototype = {
|
|
readExtra: function CFFFont_readExtra(cff) {
|
|
// charstrings contains info about glyphs (one element per glyph
|
|
// containing mappings for {unicode, width})
|
|
var charset = cff.charset.charset;
|
|
var encoding = cff.encoding ? cff.encoding.encoding : null;
|
|
var charstrings = this.getCharStrings(charset, encoding);
|
|
|
|
// create the mapping between charstring and glyph id
|
|
var glyphIds = [];
|
|
for (var i = 0, ii = charstrings.length; i < ii; i++)
|
|
glyphIds.push(charstrings[i].gid);
|
|
|
|
this.charstrings = charstrings;
|
|
this.glyphIds = glyphIds;
|
|
},
|
|
getCharStrings: function CFFFont_getCharStrings(charsets, encoding) {
|
|
var charstrings = [];
|
|
var unicodeUsed = [];
|
|
var unassignedUnicodeItems = [];
|
|
var inverseEncoding = [];
|
|
// CID fonts don't have an encoding.
|
|
if (encoding !== null)
|
|
for (var charcode in encoding)
|
|
inverseEncoding[encoding[charcode]] = charcode | 0;
|
|
else
|
|
inverseEncoding = charsets;
|
|
for (var i = 0, ii = charsets.length; i < ii; i++) {
|
|
var glyph = charsets[i];
|
|
if (glyph == '.notdef')
|
|
continue;
|
|
|
|
var code = inverseEncoding[i];
|
|
if (!code || isSpecialUnicode(code)) {
|
|
unassignedUnicodeItems.push(i);
|
|
continue;
|
|
}
|
|
charstrings.push({
|
|
unicode: code,
|
|
code: code,
|
|
gid: i,
|
|
glyph: glyph
|
|
});
|
|
unicodeUsed[code] = true;
|
|
}
|
|
|
|
var nextUnusedUnicode = kCmapGlyphOffset;
|
|
for (var j = 0, jj = unassignedUnicodeItems.length; j < jj; ++j) {
|
|
var i = unassignedUnicodeItems[j];
|
|
// giving unicode value anyway
|
|
while (nextUnusedUnicode in unicodeUsed)
|
|
nextUnusedUnicode++;
|
|
var unicode = nextUnusedUnicode++;
|
|
charstrings.push({
|
|
unicode: unicode,
|
|
code: inverseEncoding[i] || 0,
|
|
gid: i,
|
|
glyph: charsets[i]
|
|
});
|
|
}
|
|
|
|
// sort the array by the unicode value (again)
|
|
charstrings.sort(function getCharStringsSort(a, b) {
|
|
return a.unicode - b.unicode;
|
|
});
|
|
return charstrings;
|
|
}
|
|
};
|
|
|
|
return CFFFont;
|
|
})();
|
|
|
|
var CFFParser = (function CFFParserClosure() {
|
|
function CFFParser(file, properties) {
|
|
this.bytes = file.getBytes();
|
|
this.properties = properties;
|
|
}
|
|
CFFParser.prototype = {
|
|
parse: function CFFParser_parse(normalizeCIDData) {
|
|
var properties = this.properties;
|
|
var cff = new CFF();
|
|
this.cff = cff;
|
|
|
|
// The first five sections must be in order, all the others are reached
|
|
// via offsets contained in one of the below.
|
|
var header = this.parseHeader();
|
|
var nameIndex = this.parseIndex(header.endPos);
|
|
var topDictIndex = this.parseIndex(nameIndex.endPos);
|
|
var stringIndex = this.parseIndex(topDictIndex.endPos);
|
|
var globalSubrIndex = this.parseIndex(stringIndex.endPos);
|
|
|
|
var topDictParsed = this.parseDict(topDictIndex.obj.get(0));
|
|
var topDict = this.createDict(CFFTopDict, topDictParsed, cff.strings);
|
|
|
|
cff.header = header.obj;
|
|
cff.names = this.parseNameIndex(nameIndex.obj);
|
|
cff.strings = this.parseStringIndex(stringIndex.obj);
|
|
cff.topDict = topDict;
|
|
cff.globalSubrIndex = globalSubrIndex.obj;
|
|
|
|
this.parsePrivateDict(cff.topDict);
|
|
|
|
cff.isCIDFont = topDict.hasName('ROS');
|
|
|
|
var charStringOffset = topDict.getByName('CharStrings');
|
|
cff.charStrings = this.parseCharStrings(charStringOffset);
|
|
|
|
var charset, encoding;
|
|
if (cff.isCIDFont) {
|
|
var fdArrayIndex = this.parseIndex(topDict.getByName('FDArray')).obj;
|
|
for (var i = 0, ii = fdArrayIndex.count; i < ii; ++i) {
|
|
var dictRaw = fdArrayIndex.get(i);
|
|
var fontDict = this.createDict(CFFTopDict, this.parseDict(dictRaw),
|
|
cff.strings);
|
|
this.parsePrivateDict(fontDict);
|
|
cff.fdArray.push(fontDict);
|
|
}
|
|
// cid fonts don't have an encoding
|
|
encoding = null;
|
|
charset = this.parseCharsets(topDict.getByName('charset'),
|
|
cff.charStrings.count, cff.strings, true);
|
|
cff.fdSelect = this.parseFDSelect(topDict.getByName('FDSelect'),
|
|
cff.charStrings.count);
|
|
} else {
|
|
charset = this.parseCharsets(topDict.getByName('charset'),
|
|
cff.charStrings.count, cff.strings, false);
|
|
encoding = this.parseEncoding(topDict.getByName('Encoding'),
|
|
properties,
|
|
cff.strings, charset.charset);
|
|
}
|
|
cff.charset = charset;
|
|
cff.encoding = encoding;
|
|
|
|
if (!cff.isCIDFont || !normalizeCIDData)
|
|
return cff;
|
|
|
|
// DirectWrite does not like CID fonts data. Trying to convert/flatten
|
|
// the font data and remove CID properties.
|
|
if (cff.fdArray.length !== 1) {
|
|
warn('Unable to normalize CID font in CFF data -- using font as is');
|
|
return cff;
|
|
}
|
|
|
|
var fontDict = cff.fdArray[0];
|
|
fontDict.setByKey(17, topDict.getByName('CharStrings'));
|
|
cff.topDict = fontDict;
|
|
cff.isCIDFont = false;
|
|
delete cff.fdArray;
|
|
delete cff.fdSelect;
|
|
|
|
return cff;
|
|
},
|
|
parseHeader: function CFFParser_parseHeader() {
|
|
var bytes = this.bytes;
|
|
var offset = 0;
|
|
|
|
while (bytes[offset] != 1)
|
|
++offset;
|
|
|
|
if (offset != 0) {
|
|
info('cff data is shifted');
|
|
bytes = bytes.subarray(offset);
|
|
this.bytes = bytes;
|
|
}
|
|
var major = bytes[0];
|
|
var minor = bytes[1];
|
|
var hdrSize = bytes[2];
|
|
var offSize = bytes[3];
|
|
var header = new CFFHeader(major, minor, hdrSize, offSize);
|
|
return {obj: header, endPos: hdrSize};
|
|
},
|
|
parseDict: function CFFParser_parseDict(dict) {
|
|
var pos = 0;
|
|
|
|
function parseOperand() {
|
|
var value = dict[pos++];
|
|
if (value === 30) {
|
|
return parseFloatOperand(pos);
|
|
} else if (value === 28) {
|
|
value = dict[pos++];
|
|
value = (value << 8) | dict[pos++];
|
|
return value;
|
|
} else if (value === 29) {
|
|
value = dict[pos++];
|
|
value = (value << 8) | dict[pos++];
|
|
value = (value << 8) | dict[pos++];
|
|
value = (value << 8) | dict[pos++];
|
|
return value;
|
|
} else if (value >= 32 && value <= 246) {
|
|
return value - 139;
|
|
} else if (value >= 247 && value <= 250) {
|
|
return ((value - 247) * 256) + dict[pos++] + 108;
|
|
} else if (value >= 251 && value <= 254) {
|
|
return -((value - 251) * 256) - dict[pos++] - 108;
|
|
} else {
|
|
error('255 is not a valid DICT command');
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
function parseFloatOperand() {
|
|
var str = '';
|
|
var eof = 15;
|
|
var lookup = ['0', '1', '2', '3', '4', '5', '6', '7', '8',
|
|
'9', '.', 'E', 'E-', null, '-'];
|
|
var length = dict.length;
|
|
while (pos < length) {
|
|
var b = dict[pos++];
|
|
var b1 = b >> 4;
|
|
var b2 = b & 15;
|
|
|
|
if (b1 == eof)
|
|
break;
|
|
str += lookup[b1];
|
|
|
|
if (b2 == eof)
|
|
break;
|
|
str += lookup[b2];
|
|
}
|
|
return parseFloat(str);
|
|
}
|
|
|
|
var operands = [];
|
|
var entries = [];
|
|
|
|
var pos = 0;
|
|
var end = dict.length;
|
|
while (pos < end) {
|
|
var b = dict[pos];
|
|
if (b <= 21) {
|
|
if (b === 12)
|
|
b = (b << 8) | dict[++pos];
|
|
entries.push([b, operands]);
|
|
operands = [];
|
|
++pos;
|
|
} else {
|
|
operands.push(parseOperand());
|
|
}
|
|
}
|
|
return entries;
|
|
},
|
|
parseIndex: function CFFParser_parseIndex(pos) {
|
|
var cffIndex = new CFFIndex();
|
|
var bytes = this.bytes;
|
|
var count = (bytes[pos++] << 8) | bytes[pos++];
|
|
var offsets = [];
|
|
var start = pos;
|
|
var end = pos;
|
|
|
|
if (count != 0) {
|
|
var offsetSize = bytes[pos++];
|
|
// add 1 for offset to determine size of last object
|
|
var startPos = pos + ((count + 1) * offsetSize) - 1;
|
|
|
|
for (var i = 0, ii = count + 1; i < ii; ++i) {
|
|
var offset = 0;
|
|
for (var j = 0; j < offsetSize; ++j) {
|
|
offset <<= 8;
|
|
offset += bytes[pos++];
|
|
}
|
|
offsets.push(startPos + offset);
|
|
}
|
|
end = offsets[count];
|
|
}
|
|
for (var i = 0, ii = offsets.length - 1; i < ii; ++i) {
|
|
var offsetStart = offsets[i];
|
|
var offsetEnd = offsets[i + 1];
|
|
cffIndex.add(bytes.subarray(offsetStart, offsetEnd));
|
|
}
|
|
return {obj: cffIndex, endPos: end};
|
|
},
|
|
parseNameIndex: function CFFParser_parseNameIndex(index) {
|
|
var names = [];
|
|
for (var i = 0, ii = index.count; i < ii; ++i) {
|
|
var name = index.get(i);
|
|
// OTS doesn't allow names to be over 127 characters.
|
|
var length = Math.min(name.length, 127);
|
|
var data = [];
|
|
// OTS also only permits certain characters in the name.
|
|
for (var j = 0; j < length; ++j) {
|
|
var c = name[j];
|
|
if (j === 0 && c === 0) {
|
|
data[j] = c;
|
|
continue;
|
|
}
|
|
if ((c < 33 || c > 126) || c === 91 /* [ */ || c === 93 /* ] */ ||
|
|
c === 40 /* ( */ || c === 41 /* ) */ || c === 123 /* { */ ||
|
|
c === 125 /* } */ || c === 60 /* < */ || c === 62 /* > */ ||
|
|
c === 47 /* / */ || c === 37 /* % */) {
|
|
data[j] = 95;
|
|
continue;
|
|
}
|
|
data[j] = c;
|
|
}
|
|
names.push(String.fromCharCode.apply(null, data));
|
|
}
|
|
return names;
|
|
},
|
|
parseStringIndex: function CFFParser_parseStringIndex(index) {
|
|
var strings = new CFFStrings();
|
|
for (var i = 0, ii = index.count; i < ii; ++i) {
|
|
var data = index.get(i);
|
|
strings.add(String.fromCharCode.apply(null, data));
|
|
}
|
|
return strings;
|
|
},
|
|
createDict: function CFFParser_createDict(type, dict, strings) {
|
|
var cffDict = new type(strings);
|
|
var types = cffDict.types;
|
|
|
|
for (var i = 0, ii = dict.length; i < ii; ++i) {
|
|
var pair = dict[i];
|
|
var key = pair[0];
|
|
var value = pair[1];
|
|
cffDict.setByKey(key, value);
|
|
}
|
|
return cffDict;
|
|
},
|
|
parseCharStrings: function CFFParser_parseCharStrings(charStringOffset) {
|
|
var charStrings = this.parseIndex(charStringOffset).obj;
|
|
// The CFF specification state that the 'dotsection' command
|
|
// (12, 0) is deprecated and treated as a no-op, but all Type2
|
|
// charstrings processors should support them. Unfortunately
|
|
// the font sanitizer don't. As a workaround the sequence (12, 0)
|
|
// is replaced by a useless (0, hmoveto).
|
|
var count = charStrings.count;
|
|
for (var i = 0; i < count; i++) {
|
|
var charstring = charStrings.get(i);
|
|
|
|
var data = charstring;
|
|
var length = data.length;
|
|
for (var j = 0; j <= length; j) {
|
|
var value = data[j++];
|
|
if (value == 12 && data[j++] == 0) {
|
|
data[j - 2] = 139;
|
|
data[j - 1] = 22;
|
|
} else if (value === 28) {
|
|
j += 2;
|
|
} else if (value >= 247 && value <= 254) {
|
|
j++;
|
|
} else if (value == 255) {
|
|
j += 4;
|
|
}
|
|
}
|
|
}
|
|
return charStrings;
|
|
},
|
|
parsePrivateDict: function CFFParser_parsePrivateDict(parentDict) {
|
|
// no private dict, do nothing
|
|
if (!parentDict.hasName('Private'))
|
|
return;
|
|
var privateOffset = parentDict.getByName('Private');
|
|
// make sure the params are formatted correctly
|
|
if (!isArray(privateOffset) || privateOffset.length !== 2) {
|
|
parentDict.removeByName('Private');
|
|
return;
|
|
}
|
|
var size = privateOffset[0];
|
|
var offset = privateOffset[1];
|
|
// remove empty dicts or ones that refer to invalid location
|
|
if (size === 0 || offset >= this.bytes.length) {
|
|
parentDict.removeByName('Private');
|
|
return;
|
|
}
|
|
|
|
var privateDictEnd = offset + size;
|
|
var dictData = this.bytes.subarray(offset, privateDictEnd);
|
|
var dict = this.parseDict(dictData);
|
|
var privateDict = this.createDict(CFFPrivateDict, dict,
|
|
parentDict.strings);
|
|
parentDict.privateDict = privateDict;
|
|
|
|
// Parse the Subrs index also since it's relative to the private dict.
|
|
if (!privateDict.getByName('Subrs'))
|
|
return;
|
|
var subrsOffset = privateDict.getByName('Subrs');
|
|
var relativeOffset = offset + subrsOffset;
|
|
// Validate the offset.
|
|
if (subrsOffset === 0 || relativeOffset >= this.bytes.length) {
|
|
privateDict.removeByName('Subrs');
|
|
return;
|
|
}
|
|
var subrsIndex = this.parseIndex(relativeOffset);
|
|
privateDict.subrsIndex = subrsIndex.obj;
|
|
},
|
|
parseCharsets: function CFFParser_parseCharsets(pos, length, strings, cid) {
|
|
if (pos == 0) {
|
|
return new CFFCharset(true, CFFCharsetPredefinedTypes.ISO_ADOBE,
|
|
ISOAdobeCharset);
|
|
} else if (pos == 1) {
|
|
return new CFFCharset(true, CFFCharsetPredefinedTypes.EXPERT,
|
|
ExpertCharset);
|
|
} else if (pos == 2) {
|
|
return new CFFCharset(true, CFFCharsetPredefinedTypes.EXPERT_SUBSET,
|
|
ExpertSubsetCharset);
|
|
}
|
|
|
|
var bytes = this.bytes;
|
|
var start = pos;
|
|
var format = bytes[pos++];
|
|
var charset = ['.notdef'];
|
|
|
|
// subtract 1 for the .notdef glyph
|
|
length -= 1;
|
|
|
|
switch (format) {
|
|
case 0:
|
|
for (var i = 0; i < length; i++) {
|
|
var id = (bytes[pos++] << 8) | bytes[pos++];
|
|
charset.push(cid ? id : strings.get(id));
|
|
}
|
|
break;
|
|
case 1:
|
|
while (charset.length <= length) {
|
|
var id = (bytes[pos++] << 8) | bytes[pos++];
|
|
var count = bytes[pos++];
|
|
for (var i = 0; i <= count; i++)
|
|
charset.push(cid ? id++ : strings.get(id++));
|
|
}
|
|
break;
|
|
case 2:
|
|
while (charset.length <= length) {
|
|
var id = (bytes[pos++] << 8) | bytes[pos++];
|
|
var count = (bytes[pos++] << 8) | bytes[pos++];
|
|
for (var i = 0; i <= count; i++)
|
|
charset.push(cid ? id++ : strings.get(id++));
|
|
}
|
|
break;
|
|
default:
|
|
error('Unknown charset format');
|
|
}
|
|
// Raw won't be needed if we actually compile the charset.
|
|
var end = pos;
|
|
var raw = bytes.subarray(start, end);
|
|
|
|
return new CFFCharset(false, format, charset, raw);
|
|
},
|
|
parseEncoding: function CFFParser_parseEncoding(pos,
|
|
properties,
|
|
strings,
|
|
charset) {
|
|
var encoding = {};
|
|
var bytes = this.bytes;
|
|
var predefined = false;
|
|
var hasSupplement = false;
|
|
var format;
|
|
var raw = null;
|
|
|
|
function readSupplement() {
|
|
var supplementsCount = bytes[pos++];
|
|
for (var i = 0; i < supplementsCount; i++) {
|
|
var code = bytes[pos++];
|
|
var sid = (bytes[pos++] << 8) + (bytes[pos++] & 0xff);
|
|
encoding[code] = properties.differences.indexOf(strings.get(sid));
|
|
}
|
|
}
|
|
|
|
if (pos == 0 || pos == 1) {
|
|
predefined = true;
|
|
format = pos;
|
|
var gid = 1;
|
|
var baseEncoding = pos ? Encodings.ExpertEncoding :
|
|
Encodings.StandardEncoding;
|
|
for (var i = 0, ii = charset.length; i < ii; i++) {
|
|
var index = baseEncoding.indexOf(charset[i]);
|
|
if (index != -1)
|
|
encoding[index] = gid++;
|
|
}
|
|
} else {
|
|
var dataStart = pos;
|
|
var format = bytes[pos++];
|
|
switch (format & 0x7f) {
|
|
case 0:
|
|
var glyphsCount = bytes[pos++];
|
|
for (var i = 1; i <= glyphsCount; i++)
|
|
encoding[bytes[pos++]] = i;
|
|
break;
|
|
|
|
case 1:
|
|
var rangesCount = bytes[pos++];
|
|
var gid = 1;
|
|
for (var i = 0; i < rangesCount; i++) {
|
|
var start = bytes[pos++];
|
|
var left = bytes[pos++];
|
|
for (var j = start; j <= start + left; j++)
|
|
encoding[j] = gid++;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
error('Unknow encoding format: ' + format + ' in CFF');
|
|
break;
|
|
}
|
|
var dataEnd = pos;
|
|
if (format & 0x80) {
|
|
// The font sanitizer does not support CFF encoding with a
|
|
// supplement, since the encoding is not really used to map
|
|
// between gid to glyph, let's overwrite what is declared in
|
|
// the top dictionary to let the sanitizer think the font use
|
|
// StandardEncoding, that's a lie but that's ok.
|
|
bytes[dataStart] &= 0x7f;
|
|
readSupplement();
|
|
hasSupplement = true;
|
|
}
|
|
raw = bytes.subarray(dataStart, dataEnd);
|
|
}
|
|
format = format & 0x7f;
|
|
return new CFFEncoding(predefined, format, encoding, raw);
|
|
},
|
|
parseFDSelect: function CFFParser_parseFDSelect(pos, length) {
|
|
var start = pos;
|
|
var bytes = this.bytes;
|
|
var format = bytes[pos++];
|
|
var fdSelect = [];
|
|
switch (format) {
|
|
case 0:
|
|
for (var i = 0; i < length; ++i) {
|
|
var id = bytes[pos++];
|
|
fdSelect.push(id);
|
|
}
|
|
break;
|
|
case 3:
|
|
var rangesCount = (bytes[pos++] << 8) | bytes[pos++];
|
|
for (var i = 0; i < rangesCount; ++i) {
|
|
var first = (bytes[pos++] << 8) | bytes[pos++];
|
|
var fdIndex = bytes[pos++];
|
|
var next = (bytes[pos] << 8) | bytes[pos + 1];
|
|
for (var j = first; j < next; ++j)
|
|
fdSelect.push(fdIndex);
|
|
}
|
|
// Advance past the sentinel(next).
|
|
pos += 2;
|
|
break;
|
|
default:
|
|
error('Unknown fdselect format ' + format);
|
|
break;
|
|
}
|
|
var end = pos;
|
|
return new CFFFDSelect(fdSelect, bytes.subarray(start, end));
|
|
}
|
|
};
|
|
return CFFParser;
|
|
})();
|
|
|
|
// Compact Font Format
|
|
var CFF = (function CFFClosure() {
|
|
function CFF() {
|
|
this.header = null;
|
|
this.names = [];
|
|
this.topDict = null;
|
|
this.strings = new CFFStrings();
|
|
this.globalSubrIndex = null;
|
|
|
|
// The following could really be per font, but since we only have one font
|
|
// store them here.
|
|
this.encoding = null;
|
|
this.charset = null;
|
|
this.charStrings = null;
|
|
this.fdArray = [];
|
|
this.fdSelect = null;
|
|
|
|
this.isCIDFont = false;
|
|
}
|
|
return CFF;
|
|
})();
|
|
|
|
var CFFHeader = (function CFFHeaderClosure() {
|
|
function CFFHeader(major, minor, hdrSize, offSize) {
|
|
this.major = major;
|
|
this.minor = minor;
|
|
this.hdrSize = hdrSize;
|
|
this.offSize = offSize;
|
|
}
|
|
return CFFHeader;
|
|
})();
|
|
|
|
var CFFStrings = (function CFFStringsClosure() {
|
|
function CFFStrings() {
|
|
this.strings = [];
|
|
}
|
|
CFFStrings.prototype = {
|
|
get: function CFFStrings_get(index) {
|
|
if (index >= 0 && index <= 390)
|
|
return CFFStandardStrings[index];
|
|
if (index - 391 <= this.strings.length)
|
|
return this.strings[index - 391];
|
|
return CFFStandardStrings[0];
|
|
},
|
|
add: function CFFStrings_add(value) {
|
|
this.strings.push(value);
|
|
},
|
|
get count() {
|
|
return this.strings.length;
|
|
}
|
|
};
|
|
return CFFStrings;
|
|
})();
|
|
|
|
var CFFIndex = (function CFFIndexClosure() {
|
|
function CFFIndex() {
|
|
this.objects = [];
|
|
this.length = 0;
|
|
}
|
|
CFFIndex.prototype = {
|
|
add: function CFFIndex_add(data) {
|
|
this.length += data.length;
|
|
this.objects.push(data);
|
|
},
|
|
get: function CFFIndex_get(index) {
|
|
return this.objects[index];
|
|
},
|
|
get count() {
|
|
return this.objects.length;
|
|
}
|
|
};
|
|
return CFFIndex;
|
|
})();
|
|
|
|
var CFFDict = (function CFFDictClosure() {
|
|
function CFFDict(tables, strings) {
|
|
this.keyToNameMap = tables.keyToNameMap;
|
|
this.nameToKeyMap = tables.nameToKeyMap;
|
|
this.defaults = tables.defaults;
|
|
this.types = tables.types;
|
|
this.opcodes = tables.opcodes;
|
|
this.order = tables.order;
|
|
this.strings = strings;
|
|
this.values = {};
|
|
}
|
|
CFFDict.prototype = {
|
|
// value should always be an array
|
|
setByKey: function CFFDict_setByKey(key, value) {
|
|
if (!(key in this.keyToNameMap))
|
|
return false;
|
|
// ignore empty values
|
|
if (value.length === 0)
|
|
return true;
|
|
var type = this.types[key];
|
|
// remove the array wrapping these types of values
|
|
if (type === 'num' || type === 'sid' || type === 'offset')
|
|
value = value[0];
|
|
this.values[key] = value;
|
|
return true;
|
|
},
|
|
hasName: function CFFDict_hasName(name) {
|
|
return this.nameToKeyMap[name] in this.values;
|
|
},
|
|
getByName: function CFFDict_getByName(name) {
|
|
if (!(name in this.nameToKeyMap))
|
|
error('Invalid dictionary name "' + name + '"');
|
|
var key = this.nameToKeyMap[name];
|
|
if (!(key in this.values))
|
|
return this.defaults[key];
|
|
return this.values[key];
|
|
},
|
|
removeByName: function CFFDict_removeByName(name) {
|
|
delete this.values[this.nameToKeyMap[name]];
|
|
}
|
|
};
|
|
CFFDict.createTables = function CFFDict_createTables(layout) {
|
|
var tables = {
|
|
keyToNameMap: {},
|
|
nameToKeyMap: {},
|
|
defaults: {},
|
|
types: {},
|
|
opcodes: {},
|
|
order: []
|
|
};
|
|
for (var i = 0, ii = layout.length; i < ii; ++i) {
|
|
var entry = layout[i];
|
|
var key = isArray(entry[0]) ? (entry[0][0] << 8) + entry[0][1] : entry[0];
|
|
tables.keyToNameMap[key] = entry[1];
|
|
tables.nameToKeyMap[entry[1]] = key;
|
|
tables.types[key] = entry[2];
|
|
tables.defaults[key] = entry[3];
|
|
tables.opcodes[key] = isArray(entry[0]) ? entry[0] : [entry[0]];
|
|
tables.order.push(key);
|
|
}
|
|
return tables;
|
|
};
|
|
return CFFDict;
|
|
})();
|
|
|
|
var CFFTopDict = (function CFFTopDictClosure() {
|
|
var layout = [
|
|
[[12, 30], 'ROS', ['sid', 'sid', 'num'], null],
|
|
[[12, 20], 'SyntheticBase', 'num', null],
|
|
[0, 'version', 'sid', null],
|
|
[1, 'Notice', 'sid', null],
|
|
[[12, 0], 'Copyright', 'sid', null],
|
|
[2, 'FullName', 'sid', null],
|
|
[3, 'FamilyName', 'sid', null],
|
|
[4, 'Weight', 'sid', null],
|
|
[[12, 1], 'isFixedPitch', 'num', 0],
|
|
[[12, 2], 'ItalicAngle', 'num', 0],
|
|
[[12, 3], 'UnderlinePosition', 'num', -100],
|
|
[[12, 4], 'UnderlineThickness', 'num', 50],
|
|
[[12, 5], 'PaintType', 'num', 0],
|
|
[[12, 6], 'CharstringType', 'num', 2],
|
|
[[12, 7], 'FontMatrix', ['num', 'num', 'num', 'num', 'num', 'num'],
|
|
[.001, 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, 36], 'FDArray', 'offset', null],
|
|
[[12, 37], 'FDSelect', 'offset', null],
|
|
[[12, 38], 'FontName', 'sid', null]];
|
|
var tables = null;
|
|
function CFFTopDict(strings) {
|
|
if (tables === null)
|
|
tables = CFFDict.createTables(layout);
|
|
CFFDict.call(this, tables, strings);
|
|
this.privateDict = null;
|
|
}
|
|
CFFTopDict.prototype = Object.create(CFFDict.prototype);
|
|
return CFFTopDict;
|
|
})();
|
|
|
|
var CFFPrivateDict = (function CFFPrivateDictClosure() {
|
|
var layout = [
|
|
[6, 'BlueValues', 'delta', null],
|
|
[7, 'OtherBlues', 'delta', null],
|
|
[8, 'FamilyBlues', 'delta', null],
|
|
[9, 'FamilyOtherBlues', 'delta', null],
|
|
[[12, 9], 'BlueScale', 'num', 0.039625],
|
|
[[12, 10], 'BlueShift', 'num', 7],
|
|
[[12, 11], 'BlueFuzz', 'num', 1],
|
|
[10, 'StdHW', 'num', null],
|
|
[11, 'StdVW', 'num', null],
|
|
[[12, 12], 'StemSnapH', 'delta', null],
|
|
[[12, 13], 'StemSnapV', 'delta', null],
|
|
[[12, 14], 'ForceBold', 'num', 0],
|
|
[[12, 17], 'LanguageGroup', 'num', 0],
|
|
[[12, 18], 'ExpansionFactor', 'num', 0.06],
|
|
[[12, 19], 'initialRandomSeed', 'num', 0],
|
|
[20, 'defaultWidthX', 'num', 0],
|
|
[21, 'nominalWidthX', 'num', 0],
|
|
[19, 'Subrs', 'offset', null]
|
|
];
|
|
var tables = null;
|
|
function CFFPrivateDict(strings) {
|
|
if (tables === null)
|
|
tables = CFFDict.createTables(layout);
|
|
CFFDict.call(this, tables, strings);
|
|
this.subrsIndex = null;
|
|
}
|
|
CFFPrivateDict.prototype = Object.create(CFFDict.prototype);
|
|
return CFFPrivateDict;
|
|
})();
|
|
|
|
var CFFCharsetPredefinedTypes = {
|
|
ISO_ADOBE: 0,
|
|
EXPERT: 1,
|
|
EXPERT_SUBSET: 2
|
|
};
|
|
var CFFCharsetEmbeddedTypes = {
|
|
FORMAT0: 0,
|
|
FORMAT1: 1,
|
|
FORMAT2: 2
|
|
};
|
|
var CFFCharset = (function CFFCharsetClosure() {
|
|
function CFFCharset(predefined, format, charset, raw) {
|
|
this.predefined = predefined;
|
|
this.format = format;
|
|
this.charset = charset;
|
|
this.raw = raw;
|
|
}
|
|
return CFFCharset;
|
|
})();
|
|
|
|
var CFFEncodingPredefinedTypes = {
|
|
STANDARD: 0,
|
|
EXPERT: 1
|
|
};
|
|
var CFFCharsetEmbeddedTypes = {
|
|
FORMAT0: 0,
|
|
FORMAT1: 1
|
|
};
|
|
var CFFEncoding = (function CFFEncodingClosure() {
|
|
function CFFEncoding(predefined, format, encoding, raw) {
|
|
this.predefined = predefined;
|
|
this.format = format;
|
|
this.encoding = encoding;
|
|
this.raw = raw;
|
|
}
|
|
return CFFEncoding;
|
|
})();
|
|
|
|
var CFFFDSelect = (function CFFFDSelectClosure() {
|
|
function CFFFDSelect(fdSelect, raw) {
|
|
this.fdSelect = fdSelect;
|
|
this.raw = raw;
|
|
}
|
|
return CFFFDSelect;
|
|
})();
|
|
|
|
// Helper class to keep track of where an offset is within the data and helps
|
|
// filling in that offset once it's known.
|
|
var CFFOffsetTracker = (function CFFOffsetTrackerClosure() {
|
|
function CFFOffsetTracker() {
|
|
this.offsets = {};
|
|
}
|
|
CFFOffsetTracker.prototype = {
|
|
isTracking: function CFFOffsetTracker_isTracking(key) {
|
|
return key in this.offsets;
|
|
},
|
|
track: function CFFOffsetTracker_track(key, location) {
|
|
if (key in this.offsets)
|
|
error('Already tracking location of ' + key);
|
|
this.offsets[key] = location;
|
|
},
|
|
offset: function CFFOffsetTracker_offset(value) {
|
|
for (var key in this.offsets) {
|
|
this.offsets[key] += value;
|
|
}
|
|
},
|
|
setEntryLocation: function CFFOffsetTracker_setEntryLocation(key,
|
|
values,
|
|
output) {
|
|
if (!(key in this.offsets))
|
|
error('Not tracking location of ' + key);
|
|
var data = output.data;
|
|
var dataOffset = this.offsets[key];
|
|
var size = 5;
|
|
for (var i = 0, ii = values.length; i < ii; ++i) {
|
|
var offset0 = i * size + dataOffset;
|
|
var offset1 = offset0 + 1;
|
|
var offset2 = offset0 + 2;
|
|
var offset3 = offset0 + 3;
|
|
var offset4 = offset0 + 4;
|
|
// It's easy to screw up offsets so perform this sanity check.
|
|
if (data[offset0] !== 0x1d || data[offset1] !== 0 ||
|
|
data[offset2] !== 0 || data[offset3] !== 0 || data[offset4] !== 0)
|
|
error('writing to an offset that is not empty');
|
|
var value = values[i];
|
|
data[offset0] = 0x1d;
|
|
data[offset1] = (value >> 24) & 0xFF;
|
|
data[offset2] = (value >> 16) & 0xFF;
|
|
data[offset3] = (value >> 8) & 0xFF;
|
|
data[offset4] = value & 0xFF;
|
|
}
|
|
}
|
|
};
|
|
return CFFOffsetTracker;
|
|
})();
|
|
|
|
// Takes a CFF and converts it to the binary representation.
|
|
var CFFCompiler = (function CFFCompilerClosure() {
|
|
function stringToArray(str) {
|
|
var array = [];
|
|
for (var i = 0, ii = str.length; i < ii; ++i)
|
|
array[i] = str.charCodeAt(i);
|
|
|
|
return array;
|
|
};
|
|
function CFFCompiler(cff) {
|
|
this.cff = cff;
|
|
}
|
|
CFFCompiler.prototype = {
|
|
compile: function CFFCompiler_compile() {
|
|
var cff = this.cff;
|
|
var output = {
|
|
data: [],
|
|
length: 0,
|
|
add: function CFFCompiler_add(data) {
|
|
this.data = this.data.concat(data);
|
|
this.length = this.data.length;
|
|
}
|
|
};
|
|
|
|
// Compile the five entries that must be in order.
|
|
var header = this.compileHeader(cff.header);
|
|
output.add(header);
|
|
|
|
var nameIndex = this.compileNameIndex(cff.names);
|
|
output.add(nameIndex);
|
|
|
|
var compiled = this.compileTopDicts([cff.topDict], output.length);
|
|
output.add(compiled.output);
|
|
var topDictTracker = compiled.trackers[0];
|
|
|
|
var stringIndex = this.compileStringIndex(cff.strings.strings);
|
|
output.add(stringIndex);
|
|
|
|
var globalSubrIndex = this.compileIndex(cff.globalSubrIndex);
|
|
output.add(globalSubrIndex);
|
|
|
|
// Now start on the other entries that have no specfic order.
|
|
if (cff.encoding && cff.topDict.hasName('Encoding')) {
|
|
if (cff.encoding.predefined) {
|
|
topDictTracker.setEntryLocation('Encoding', [cff.encoding.format],
|
|
output);
|
|
} else {
|
|
var encoding = this.compileEncoding(cff.encoding);
|
|
topDictTracker.setEntryLocation('Encoding', [output.length], output);
|
|
output.add(encoding);
|
|
}
|
|
}
|
|
|
|
if (cff.charset && cff.topDict.hasName('charset')) {
|
|
if (cff.charset.predefined) {
|
|
topDictTracker.setEntryLocation('charset', [cff.charset.format],
|
|
output);
|
|
} else {
|
|
var charset = this.compileCharset(cff.charset);
|
|
topDictTracker.setEntryLocation('charset', [output.length], output);
|
|
output.add(charset);
|
|
}
|
|
}
|
|
|
|
var charStrings = this.compileCharStrings(cff.charStrings);
|
|
topDictTracker.setEntryLocation('CharStrings', [output.length], output);
|
|
output.add(charStrings);
|
|
|
|
if (cff.isCIDFont) {
|
|
// For some reason FDSelect must be in front of FDArray on windows. OSX
|
|
// and linux don't seem to care.
|
|
topDictTracker.setEntryLocation('FDSelect', [output.length], output);
|
|
var fdSelect = this.compileFDSelect(cff.fdSelect.raw);
|
|
output.add(fdSelect);
|
|
|
|
var compiled = this.compileTopDicts(cff.fdArray, output.length);
|
|
topDictTracker.setEntryLocation('FDArray', [output.length], output);
|
|
output.add(compiled.output);
|
|
var fontDictTrackers = compiled.trackers;
|
|
|
|
this.compilePrivateDicts(cff.fdArray, fontDictTrackers, output);
|
|
}
|
|
|
|
this.compilePrivateDicts([cff.topDict], [topDictTracker], output);
|
|
|
|
return output.data;
|
|
},
|
|
encodeNumber: function CFFCompiler_encodeNumber(value) {
|
|
if (parseFloat(value) == parseInt(value) && !isNaN(value)) // isInt
|
|
return this.encodeInteger(value);
|
|
else
|
|
return this.encodeFloat(value);
|
|
},
|
|
encodeFloat: function CFFCompiler_encodeFloat(value) {
|
|
value = value.toString();
|
|
// Strip off the any leading zeros.
|
|
if (value.substr(0, 2) === '0.')
|
|
value = value.substr(1);
|
|
else if (value.substr(0, 3) === '-0.')
|
|
value = '-' + value.substr(2);
|
|
var nibbles = [];
|
|
for (var i = 0, ii = value.length; i < ii; ++i) {
|
|
var a = value.charAt(i), b = value.charAt(i + 1);
|
|
var nibble;
|
|
if (a === 'e' && b === '-') {
|
|
nibble = 0xc;
|
|
++i;
|
|
} else if (a === '.') {
|
|
nibble = 0xa;
|
|
} else if (a === 'E') {
|
|
nibble = 0xb;
|
|
} else if (a === '-') {
|
|
nibble = 0xe;
|
|
} else {
|
|
nibble = a;
|
|
}
|
|
nibbles.push(nibble);
|
|
}
|
|
nibbles.push(0xf);
|
|
if (nibbles.length % 2)
|
|
nibbles.push(0xf);
|
|
var out = [30];
|
|
for (var i = 0, ii = nibbles.length; i < ii; i += 2)
|
|
out.push(nibbles[i] << 4 | nibbles[i + 1]);
|
|
return out;
|
|
},
|
|
encodeInteger: function CFFCompiler_encodeInteger(value) {
|
|
var code;
|
|
if (value >= -107 && value <= 107) {
|
|
code = [value + 139];
|
|
} else if (value >= 108 && value <= 1131) {
|
|
value = [value - 108];
|
|
code = [(value >> 8) + 247, value & 0xFF];
|
|
} else if (value >= -1131 && value <= -108) {
|
|
value = -value - 108;
|
|
code = [(value >> 8) + 251, value & 0xFF];
|
|
} else if (value >= -32768 && value <= 32767) {
|
|
code = [0x1c, (value >> 8) & 0xFF, value & 0xFF];
|
|
} else {
|
|
code = [0x1d,
|
|
(value >> 24) & 0xFF,
|
|
(value >> 16) & 0xFF,
|
|
(value >> 8) & 0xFF,
|
|
value & 0xFF];
|
|
}
|
|
return code;
|
|
},
|
|
compileHeader: function CFFCompiler_compileHeader(header) {
|
|
return [
|
|
header.major,
|
|
header.minor,
|
|
header.hdrSize,
|
|
header.offSize
|
|
];
|
|
},
|
|
compileNameIndex: function CFFCompiler_compileNameIndex(names) {
|
|
var nameIndex = new CFFIndex();
|
|
for (var i = 0, ii = names.length; i < ii; ++i)
|
|
nameIndex.add(stringToArray(names[i]));
|
|
return this.compileIndex(nameIndex);
|
|
},
|
|
compileTopDicts: function CFFCompiler_compileTopDicts(dicts, length) {
|
|
var fontDictTrackers = [];
|
|
var fdArrayIndex = new CFFIndex();
|
|
for (var i = 0, ii = dicts.length; i < ii; ++i) {
|
|
var fontDict = dicts[i];
|
|
var fontDictTracker = new CFFOffsetTracker();
|
|
var fontDictData = this.compileDict(fontDict, fontDictTracker);
|
|
fontDictTrackers.push(fontDictTracker);
|
|
fdArrayIndex.add(fontDictData);
|
|
fontDictTracker.offset(length);
|
|
}
|
|
fdArrayIndex = this.compileIndex(fdArrayIndex, fontDictTrackers);
|
|
return {
|
|
trackers: fontDictTrackers,
|
|
output: fdArrayIndex
|
|
};
|
|
},
|
|
compilePrivateDicts: function CFFCompiler_compilePrivateDicts(dicts,
|
|
trackers,
|
|
output) {
|
|
for (var i = 0, ii = dicts.length; i < ii; ++i) {
|
|
var fontDict = dicts[i];
|
|
if (!fontDict.privateDict || !fontDict.hasName('Private'))
|
|
continue;
|
|
var privateDict = fontDict.privateDict;
|
|
var privateDictTracker = new CFFOffsetTracker();
|
|
var privateDictData = this.compileDict(privateDict, privateDictTracker);
|
|
|
|
privateDictTracker.offset(output.length);
|
|
trackers[i].setEntryLocation('Private',
|
|
[privateDictData.length, output.length],
|
|
output);
|
|
output.add(privateDictData);
|
|
|
|
if (privateDict.subrsIndex && privateDict.hasName('Subrs')) {
|
|
var subrs = this.compileIndex(privateDict.subrsIndex);
|
|
privateDictTracker.setEntryLocation('Subrs', [privateDictData.length],
|
|
output);
|
|
output.add(subrs);
|
|
}
|
|
}
|
|
},
|
|
compileDict: function CFFCompiler_compileDict(dict, offsetTracker) {
|
|
var out = [];
|
|
// The dictionary keys must be in a certain order.
|
|
var order = dict.order;
|
|
for (var i = 0; i < order.length; ++i) {
|
|
var key = order[i];
|
|
if (!(key in dict.values))
|
|
continue;
|
|
var values = dict.values[key];
|
|
var types = dict.types[key];
|
|
if (!isArray(types)) types = [types];
|
|
if (!isArray(values)) values = [values];
|
|
|
|
// Remove any empty dict values.
|
|
if (values.length === 0)
|
|
continue;
|
|
|
|
for (var j = 0, jj = types.length; j < jj; ++j) {
|
|
var type = types[j];
|
|
var value = values[j];
|
|
switch (type) {
|
|
case 'num':
|
|
case 'sid':
|
|
out = out.concat(this.encodeNumber(value));
|
|
break;
|
|
case 'offset':
|
|
// For offsets we just insert a 32bit integer so we don't have to
|
|
// deal with figuring out the length of the offset when it gets
|
|
// replaced later on by the compiler.
|
|
var name = dict.keyToNameMap[key];
|
|
// Some offsets have the offset and the length, so just record the
|
|
// position of the first one.
|
|
if (!offsetTracker.isTracking(name))
|
|
offsetTracker.track(name, out.length);
|
|
out = out.concat([0x1d, 0, 0, 0, 0]);
|
|
break;
|
|
case 'array':
|
|
case 'delta':
|
|
out = out.concat(this.encodeNumber(value));
|
|
for (var k = 1, kk = values.length; k < kk; ++k)
|
|
out = out.concat(this.encodeNumber(values[k]));
|
|
break;
|
|
default:
|
|
error('Unknown data type of ' + type);
|
|
break;
|
|
}
|
|
}
|
|
out = out.concat(dict.opcodes[key]);
|
|
}
|
|
return out;
|
|
},
|
|
compileStringIndex: function CFFCompiler_compileStringIndex(strings) {
|
|
var stringIndex = new CFFIndex();
|
|
for (var i = 0, ii = strings.length; i < ii; ++i)
|
|
stringIndex.add(stringToArray(strings[i]));
|
|
return this.compileIndex(stringIndex);
|
|
},
|
|
compileGlobalSubrIndex: function CFFCompiler_compileGlobalSubrIndex() {
|
|
var globalSubrIndex = this.cff.globalSubrIndex;
|
|
this.out.writeByteArray(this.compileIndex(globalSubrIndex));
|
|
},
|
|
compileCharStrings: function CFFCompiler_compileCharStrings(charStrings) {
|
|
return this.compileIndex(charStrings);
|
|
},
|
|
compileCharset: function CFFCompiler_compileCharset(charset) {
|
|
return this.compileTypedArray(charset.raw);
|
|
},
|
|
compileEncoding: function CFFCompiler_compileEncoding(encoding) {
|
|
return this.compileTypedArray(encoding.raw);
|
|
},
|
|
compileFDSelect: function CFFCompiler_compileFDSelect(fdSelect) {
|
|
return this.compileTypedArray(fdSelect);
|
|
},
|
|
compileTypedArray: function CFFCompiler_compileTypedArray(data) {
|
|
var out = [];
|
|
for (var i = 0, ii = data.length; i < ii; ++i)
|
|
out[i] = data[i];
|
|
return out;
|
|
},
|
|
compileIndex: function CFFCompiler_compileIndex(index, trackers) {
|
|
trackers = trackers || [];
|
|
var objects = index.objects;
|
|
// First 2 bytes contains the number of objects contained into this index
|
|
var count = objects.length;
|
|
|
|
// If there is no object, just create an index. This technically
|
|
// should just be [0, 0] but OTS has an issue with that.
|
|
if (count == 0)
|
|
return [0, 0, 0];
|
|
|
|
var data = [(count >> 8) & 0xFF, count & 0xff];
|
|
|
|
var lastOffset = 1;
|
|
for (var i = 0; i < count; ++i)
|
|
lastOffset += objects[i].length;
|
|
|
|
var offsetSize;
|
|
if (lastOffset < 0x100)
|
|
offsetSize = 1;
|
|
else if (lastOffset < 0x10000)
|
|
offsetSize = 2;
|
|
else if (lastOffset < 0x1000000)
|
|
offsetSize = 3;
|
|
else
|
|
offsetSize = 4;
|
|
|
|
// Next byte contains the offset size use to reference object in the file
|
|
data.push(offsetSize);
|
|
|
|
// Add another offset after this one because we need a new offset
|
|
var relativeOffset = 1;
|
|
for (var i = 0; i < count + 1; i++) {
|
|
if (offsetSize === 1) {
|
|
data.push(relativeOffset & 0xFF);
|
|
} else if (offsetSize === 2) {
|
|
data.push((relativeOffset >> 8) & 0xFF,
|
|
relativeOffset & 0xFF);
|
|
} else if (offsetSize === 3) {
|
|
data.push((relativeOffset >> 16) & 0xFF,
|
|
(relativeOffset >> 8) & 0xFF,
|
|
relativeOffset & 0xFF);
|
|
} else {
|
|
data.push((relativeOffset >>> 24) & 0xFF,
|
|
(relativeOffset >> 16) & 0xFF,
|
|
(relativeOffset >> 8) & 0xFF,
|
|
relativeOffset & 0xFF);
|
|
}
|
|
|
|
if (objects[i])
|
|
relativeOffset += objects[i].length;
|
|
}
|
|
var offset = data.length;
|
|
|
|
for (var i = 0; i < count; i++) {
|
|
// Notify the tracker where the object will be offset in the data.
|
|
if (trackers[i])
|
|
trackers[i].offset(data.length);
|
|
for (var j = 0, jj = objects[i].length; j < jj; j++)
|
|
data.push(objects[i][j]);
|
|
}
|
|
return data;
|
|
}
|
|
};
|
|
return CFFCompiler;
|
|
})();
|
|
|