diff options
Diffstat (limited to 'apps/files_pdfviewer/js/pdfjs/src/fonts.js')
| -rwxr-xr-x | apps/files_pdfviewer/js/pdfjs/src/fonts.js | 3568 |
1 files changed, 3568 insertions, 0 deletions
diff --git a/apps/files_pdfviewer/js/pdfjs/src/fonts.js b/apps/files_pdfviewer/js/pdfjs/src/fonts.js new file mode 100755 index 00000000000..116bb4dfc71 --- /dev/null +++ b/apps/files_pdfviewer/js/pdfjs/src/fonts.js @@ -0,0 +1,3568 @@ +/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */ + +'use strict'; + +var isWorker = (typeof window == 'undefined'); + +/** + * 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; + +// 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 Encodings = { + get ExpertEncoding() { + return shadow(this, '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' + ]); + }, + get MacExpertEncoding() { + return shadow(this, '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' + ]); + }, + get MacRomanEncoding() { + return shadow(this, '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', 'space', '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' + ]); + }, + get StandardEncoding() { + return shadow(this, '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' + ]); + }, + get WinAnsiEncoding() { + return shadow(this, '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', 'space', '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' + ]); + }, + get symbolsEncoding() { + return shadow(this, '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' + ]); + }, + get zapfDingbatsEncoding() { + return shadow(this, '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' +}; + +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 FontLoader = { + listeningForFontLoad: false, + + bind: function fontLoaderBind(fonts, callback) { + function checkFontsLoaded() { + for (var i = 0, ii = objs.length; i < ii; i++) { + var fontObj = objs[i]; + if (fontObj.loading) { + return false; + } + } + + document.documentElement.removeEventListener( + 'pdfjsFontLoad', checkFontsLoaded, false); + + callback(); + return true; + } + + var rules = [], names = [], objs = []; + + for (var i = 0, ii = fonts.length; i < ii; i++) { + var font = fonts[i]; + + // If there is already a fontObj on the font, then it was loaded/attached + // to the page already and we don't have to do anything for this font + // here future. + if (font.fontObj) { + continue; + } + + var obj = new Font(font.name, font.file, font.properties); + + // Store the fontObj on the font such that `setFont` in CanvasGraphics + // can reuse it later again. + font.fontObj = obj; + + objs.push(obj); + + var str = ''; + var data = obj.data; + if (data) { + var length = data.length; + for (var j = 0; j < length; j++) + str += String.fromCharCode(data[j]); + + var rule = isWorker ? obj.bindWorker(str) : obj.bindDOM(str); + if (rule) { + rules.push(rule); + names.push(obj.loadedName); + } + } + } + + this.listeningForFontLoad = false; + if (!isWorker && rules.length) { + FontLoader.prepareFontLoadEvent(rules, names, objs); + } + + if (!checkFontsLoaded()) { + document.documentElement.addEventListener( + 'pdfjsFontLoad', checkFontsLoaded, false); + } + + return objs; + }, + // Set things up so that at least one pdfjsFontLoad event is + // dispatched when all the @font-face |rules| for |names| 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, names, + objs) { + /** 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 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); + + if (!this.listeningForFontLoad) { + window.addEventListener( + 'message', + function fontLoaderMessage(e) { + var fontNames = JSON.parse(e.data); + for (var i = 0, ii = objs.length; i < ii; ++i) { + var font = objs[i]; + font.loading = false; + } + var evt = document.createEvent('Events'); + evt.initEvent('pdfjsFontLoad', true, false); + document.documentElement.dispatchEvent(evt); + }, + false); + this.listeningForFontLoad = true; + } + + // XXX we should have a time-out here too, and maybe fire + // pdfjsFontLoadFailed? + var src = '<!DOCTYPE HTML><html><head>'; + 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">'; + var fontNamesArray = ''; + for (var i = 0, ii = names.length; i < ii; ++i) { + fontNamesArray += '"' + names[i] + '", '; + } + src += ' var fontNames=[' + fontNamesArray + '];\n'; + src += ' window.onload = function fontLoaderOnload() {\n'; + src += ' parent.postMessage(JSON.stringify(fontNames), "*");\n'; + src += ' }'; + src += '</script></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 adaptUnicode(unicode) { + return (unicode <= 0x1F || (unicode >= 127 && unicode < kSizeOfGlyphArea)) ? + unicode + kCmapGlyphOffset : unicode; +} + +function isAdaptedUnicode(unicode) { + return unicode >= kCmapGlyphOffset && + unicode < kCmapGlyphOffset + kSizeOfGlyphArea; +} + +function isSpecialUnicode(unicode) { + return (unicode <= 0x1F || (unicode >= 127 && unicode < kSizeOfGlyphArea)) || + unicode >= kCmapGlyphOffset && + unicode < kCmapGlyphOffset + kSizeOfGlyphArea; +} + +/** + * '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 Font() { + var constructor = function font_constructor(name, file, properties) { + this.name = name; + this.coded = properties.coded; + this.charProcIRQueues = properties.charProcIRQueues; + this.resources = properties.resources; + this.sizes = []; + + var names = name.split('+'); + names = names.length > 1 ? names[1] : names[0]; + names = names.split(/[-,_]/g)[0]; + this.serif = serifFonts[names] || (name.search(/serif/gi) != -1); + + 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.serif ? 'serif' : 'sans-serif'; + this.loading = false; + return; + } + + this.differences = properties.differences; + this.widths = properties.widths; + this.defaultWidth = properties.defaultWidth; + this.composite = properties.composite; + this.toUnicode = properties.toUnicode; + this.hasEncoding = properties.hasEncoding; + + this.fontMatrix = properties.fontMatrix; + if (properties.type == 'Type3') + return; + + // Trying to fix encoding using glyph CIDSystemInfo. + this.loadCidToUnicode(properties); + + 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] || 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 Type2CFF(file, properties) : new CFF(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.encoding = properties.baseEncoding; + this.hasShortCmap = properties.hasShortCmap; + this.loadedName = getUniqueName(); + 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 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 startCode = codes[n].code; + ++n; + var end = start; + while (n < length && end + 1 == codes[n].unicode) { + ++end; + ++n; + } + var endCode = codes[n - 1].code; + ranges.push([start, end, startCode, endCode]); + } + + 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 startCode = range[2]; + var endCode = range[3]; + for (var j = startCode; j <= endCode; ++j) + glyphsIds += string16(deltas[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]; + + 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; + } + + constructor.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 replaceCMapTable(cmap, font, properties) { + 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 fontReplaceCMapTableSort(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) { + var unicode = adaptUnicode(j); + glyphs.push({ unicode: unicode, code: j }); + ids.push(index); + } + } + + properties.hasShortCmap = true; + + createGlyphNameMap(glyphs, ids, properties); + return cmap.data = createCMapTable(glyphs, ids); + } 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 || isAdaptedUnicode(j)) + continue; + + var unicode = adaptUnicode(j); + glyphs.push({ unicode: unicode, code: j }); + ids.push(glyphCode); + } + } + + createGlyphNameMap(glyphs, ids, properties); + return cmap.data = createCMapTable(glyphs, 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; + if (isAdaptedUnicode(glyphCode)) + continue; + + var unicode = adaptUnicode(code); + glyphs.push({ unicode: unicode, code: code }); + ids.push(glyphCode); + } + + createGlyphNameMap(glyphs, ids, properties); + return cmap.data = createCMapTable(glyphs, ids); + } + } + return cmap.data; + }; + + 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 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; + var startOffset = itemDecode(locaData, 0); + var firstOffset = itemDecode(locaData, itemSize); + if (firstOffset - startOffset < 12 || startOffset > 0) { + // removing first glyph + glyf.data = glyf.data.subarray(firstOffset); + glyf.length -= firstOffset; + + itemEncode(locaData, 0, 0); + var i, pos = itemSize; + for (i = 1; i <= numGlyphs; ++i) { + itemEncode(locaData, pos, + itemDecode(locaData, pos) - firstOffset); + pos += itemSize; + } + } + } + + 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; + } + + // 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; + 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; + + 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 = header.numTables + 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); + + if (requiredTables.indexOf('OS/2') != -1) { + // 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, null, override)) + }); + } + + // 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); + + if (head && loca && glyf) { + var isGlyphLocationsLong = int16([head.data[50], head.data[51]]); + sanitizeGlyphLocations(loca, glyf, numGlyphs, isGlyphLocationsLong); + } + + // 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); + } + + // Replace the old CMAP table with a shiny new one + if (properties.type == 'CIDFontType2') { + // 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 glyphs = []; + for (i = 1; i < numGlyphs; i++) { + if (isAdaptedUnicode(i)) + continue; + + glyphs.push({ unicode: adaptUnicode(i) }); + } + cmap.data = createCMapTable(glyphs); + } else { + replaceCMapTable(cmap, font, properties); + this.glyphNameMap = properties.glyphNameMap; + } + + // 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; + } + + 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 + string16(properties.descent) + // yMin + '\x0F\xFF' + // xMax + string16(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 + string16(properties.ascent) + // Typographic Ascent + string16(properties.descent) + // Typographic Descent + '\x00\x00' + // Line Gap + '\xFF\xFF' + // advanceWidthMax + '\x00\x00' + // minLeftSidebearing + '\x00\x00' + // minRightSidebearing + '\x00\x00' + // xMaxExtent + string16(properties.capHeight) + // caretSlopeRise + string16(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++) + hmtx += string16(charstrings[i].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); + }, + + loadCidToUnicode: function font_loadCidToUnicode(properties) { + if (properties.cidToGidMap) { + this.cidToUnicode = properties.cidToGidMap; + return; + } + + if (!properties.cidSystemInfo) + return; + + var cidToUnicodeMap = []; + this.cidToUnicode = cidToUnicodeMap; + + var cidSystemInfo = properties.cidSystemInfo; + var cidToUnicode; + if (cidSystemInfo) { + cidToUnicode = CIDToUnicodeMaps[ + cidSystemInfo.registry + '-' + cidSystemInfo.ordering]; + } + + if (!cidToUnicode) + return; // identity encoding + + var glyph = 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[unicode[j]] = glyph; + glyph++; + } else if (typeof unicode === 'object') { + var fillLength = unicode.f; + if (fillLength) { + k = unicode.c; + for (j = 0; j < fillLength; ++j) { + cidToUnicodeMap[k] = glyph++; + k++; + } + } else + glyph += unicode.s; + } else if (unicode) { + cidToUnicodeMap[unicode] = glyph++; + } else + glyph++; + } + }, + + bindWorker: function font_bindWorker(data) { + postMessage({ + action: 'font', + data: { + raw: data, + fontName: this.loadedName, + mimetype: this.mimetype + } + }); + }, + + 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 + '}'; + + document.documentElement.firstChild.appendChild( + document.createElement('style')); + + var styleSheet = document.styleSheets[document.styleSheets.length - 1]; + styleSheet.insertRule(rule, styleSheet.cssRules.length); + + return rule; + }, + + charToGlyph: function fonts_charToGlyph(charcode) { + var unicode, width, codeIRQueue; + + var width = this.widths[charcode]; + + switch (this.type) { + case 'CIDFontType0': + if (this.noUnicodeAdaptation) { + width = this.widths[this.cidToUnicode[charcode]]; + unicode = charcode; + break; + } + unicode = adaptUnicode(this.cidToUnicode[charcode] || charcode); + break; + case 'CIDFontType2': + if (this.noUnicodeAdaptation) { + width = this.widths[this.cidToUnicode[charcode]]; + unicode = charcode; + break; + } + unicode = adaptUnicode(this.cidToUnicode[charcode] || charcode); + break; + case 'Type1': + var glyphName = this.differences[charcode] || this.encoding[charcode]; + if (this.noUnicodeAdaptation) { + if (!isNum(width)) + width = this.widths[glyphName]; + unicode = GlyphsUnicode[glyphName] || charcode; + break; + } + unicode = this.glyphNameMap[glyphName] || + adaptUnicode(GlyphsUnicode[glyphName] || charcode); + break; + case 'Type3': + var glyphName = this.differences[charcode] || this.encoding[charcode]; + codeIRQueue = this.charProcIRQueues[glyphName]; + unicode = charcode; + break; + case 'TrueType': + var glyphName = this.differences[charcode] || this.encoding[charcode]; + if (!glyphName) + glyphName = Encodings.StandardEncoding[charcode]; + if (!isNum(width)) + width = this.widths[glyphName]; + if (this.noUnicodeAdaptation) { + unicode = GlyphsUnicode[glyphName] || charcode; + break; + } + if (!this.hasEncoding) { + unicode = adaptUnicode(charcode); + break; + } + if (this.hasShortCmap) { + var j = Encodings.MacRomanEncoding.indexOf(glyphName); + unicode = j >= 0 && !isSpecialUnicode(j) ? j : + this.glyphNameMap[glyphName]; + } else { + unicode = glyphName in GlyphsUnicode ? + adaptUnicode(GlyphsUnicode[glyphName]) : + this.glyphNameMap[glyphName]; + } + break; + default: + warn('Unsupported font type: ' + this.type); + break; + } + return { + unicode: unicode, + width: isNum(width) ? width : this.defaultWidth, + codeIRQueue: codeIRQueue + }; + }, + + charsToGlyphs: function fonts_chars2Glyphs(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.composite) { + // 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 constructor; +})(); + +/* + * 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', + + // Type1 only command with command not (yet) built-in ,throw an error + '6': -1, // seac + '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; + + 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; + } + } else if (escape == 17 || escape == 33) { + // pop or setcurrentpoint commands can be ignored + // since we are not doing callothersubr + continue; + } else if (!kHintingEnabled && (escape == 1 || escape == 2)) { + charstring.push('drop', 'drop', 'drop', 'drop', 'drop', 'drop'); + continue; + } + + command = charStringDictionary['12'][escape]; + } else { + // TODO Clean this code + if (value == 13) { // hsbw + if (charstring.length == 2) { + lsb = charstring[0]; + width = charstring[1]; + charstring.splice(0, 1); + } else if (charstring.length == 4 && charstring[3] == 'div') { + lsb = charstring[0]; + width = charstring[1] / charstring[2]; + charstring.splice(0, 1); + } else if (charstring.length == 4 && charstring[2] == 'div') { + lsb = charstring[0] / charstring[1]; + width = charstring[3]; + charstring.splice(0, 3); + } else { + error('Unsupported hsbw format: ' + charstring); + } + + charstring.push(lsb, '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++; + + var array = str.substr(start, count).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 t1_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: { + 'private': { + '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.private['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.private['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': + case '/StemSnapH': + case '/StemSnapV': + program.properties.private[token.substring(1)] = + readNumberArray(eexecStr, i + 1); + break; + case '/StdHW': + case '/StdVW': + program.properties.private[token.substring(1)] = + readNumberArray(eexecStr, i + 2)[0]; + break; + case '/BlueShift': + case '/lenIV': + case '/BlueFuzz': + case '/BlueScale': + case '/LanguageGroup': + case '/ExpansionFactor': + program.properties.private[token.substring(1)] = + readNumber(eexecStr, i + 1); + break; + } + } else if (c == '/') { + token = glyph = ''; + while ((c = eexecStr[++i]) != ' ') + glyph += c; + } + } + } + + return program; + }; + + this.extractFontHeader = function t1_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 char = headerString[i]; + while (i < count && (isSeparator(char) || char == '/')) + char = headerString[++i]; + + var token = ''; + while (i < count && !(isSeparator(char) || char == '/')) { + token += char; + char = 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 CFFStrings = [ + '.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(); + +var CFF = function cffCFF(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); +}; + +CFF.prototype = { + createCFFIndexHeader: function cff_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 cff_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 cff_getOrderedCharStrings(glyphs, + properties) { + var charstrings = []; + var reverseMapping = {}; + var encoding = properties.baseEncoding; + var i, length, glyphName; + for (i = 0, length = encoding.length; i < length; ++i) { + glyphName = encoding[i]; + if (!glyphName || isSpecialUnicode(i)) + continue; + reverseMapping[glyphName] = i; + } + reverseMapping['.notdef'] = 0; + var unusedUnicode = kCmapGlyphOffset; + for (i = 0, length = glyphs.length; i < length; i++) { + var item = glyphs[i]; + var glyphName = item.glyph; + var unicode = glyphName in reverseMapping ? + reverseMapping[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 cff_getType2Charstrings(type1Charstrings) { + var type2Charstrings = []; + var count = type1Charstrings.length; + for (var i = 0; i < count; i++) { + var charstring = type1Charstrings[i].charstring; + type2Charstrings.push(this.flattenCharstring(charstring.slice(), + this.commandsMap)); + } + return type2Charstrings; + }, + + getType2Subrs: function cff_getType2Subrs(type1Subrs) { + var bias = 0; + var count = type1Subrs.length; + if (count < 1240) + bias = 107; + else if (count < 33900) + 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++) { + var subr = type1Subrs[i]; + if (!subr) + subr = [0x0B]; + + type2Subrs.push(this.flattenCharstring(subr, this.commandsMap)); + } + + 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 flattenCharstring(charstring, map) { + // 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 { + // 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 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.private.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 = CFFStrings.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), + + 'private': (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.private.hasOwnProperty(field)) + continue; + var value = properties.private[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 Type2CFF = (function type2CFF() { + // TODO: replace parsing code with the Type2Parser in font_utils.js + function constructor(file, properties) { + var bytes = file.getBytes(); + this.bytes = bytes; + this.properties = properties; + + this.data = this.parse(); + } + + constructor.prototype = { + parse: function cff_parse() { + var header = this.parseHeader(); + var properties = this.properties; + var nameIndex = this.parseIndex(header.endPos); + + var dictIndex = this.parseIndex(nameIndex.endPos); + if (dictIndex.length != 1) + error('CFF contains more than 1 font'); + + var stringIndex = this.parseIndex(dictIndex.endPos); + var gsubrIndex = this.parseIndex(stringIndex.endPos); + + var strings = this.getStrings(stringIndex); + + var baseDict = this.parseDict(dictIndex.get(0).data); + var topDict = this.getTopDict(baseDict, strings); + + var bytes = this.bytes; + + var privateDict = {}; + var privateInfo = topDict.Private; + if (privateInfo) { + var privOffset = privateInfo[1], privLength = privateInfo[0]; + var privBytes = bytes.subarray(privOffset, privOffset + privLength); + baseDict = this.parseDict(privBytes); + privateDict = this.getPrivDict(baseDict, strings); + } else { + privateDict.defaultWidthX = properties.defaultWidth; + } + + var charStrings = this.parseIndex(topDict.CharStrings); + var charset = this.parseCharsets(topDict.charset, + charStrings.length, strings); + var encoding = this.parseEncoding(topDict.Encoding, properties, + strings, charset); + + var charset, encoding; + var isCIDFont = properties.subtype == 'CIDFontType0C'; + if (isCIDFont) { + charset = []; + charset.length = charStrings.length; + encoding = this.parseCidMap(topDict.charset, + charStrings.length); + } else { + charset = this.parseCharsets(topDict.charset, + charStrings.length, strings); + encoding = this.parseEncoding(topDict.Encoding, properties, + strings, charset); + } + + // The font sanitizer does not support CFF encoding with a + // supplement, since the encoding is not really use 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. + if (encoding.hasSupplement) + bytes[topDict.Encoding] &= 0x7F; + + // 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.length; + for (var i = 0; i < count; i++) { + var charstring = charStrings.get(i); + + var start = charstring.start; + var data = charstring.data; + var length = data.length; + for (var j = 0; j <= length; j) { + var value = data[j++]; + if (value == 12 && data[j++] == 0) { + bytes[start + j - 2] = 139; + bytes[start + j - 1] = 22; + } else if (value === 28) { + j += 2; + } else if (value >= 247 && value <= 254) { + j++; + } else if (value == 255) { + j += 4; + } + } + } + + // charstrings contains info about glyphs (one element per glyph + // containing mappings for {unicode, width}) + var charstrings = this.getCharStrings(charset, encoding.encoding, + privateDict, this.properties); + + // 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; + + var data = []; + for (var i = 0, ii = bytes.length; i < ii; ++i) + data.push(bytes[i]); + return data; + }, + + getCharStrings: function cff_charstrings(charsets, encoding, + privateDict, properties) { + var charstrings = []; + var unicodeUsed = []; + var unassignedUnicodeItems = []; + for (var i = 0, ii = charsets.length; i < ii; i++) { + var glyph = charsets[i]; + var encodingFound = false; + for (var charcode in encoding) { + if (encoding[charcode] == i) { + var code = charcode | 0; + charstrings.push({ + unicode: adaptUnicode(code), + code: code, + gid: i, + glyph: glyph + }); + unicodeUsed[code] = true; + encodingFound = true; + break; + } + } + if (!encodingFound) { + unassignedUnicodeItems.push(i); + } + } + + var nextUnusedUnicode = 0x21; + for (var j = 0, jj = unassignedUnicodeItems.length; j < jj; ++j) { + var i = unassignedUnicodeItems[j]; + // giving unicode value anyway + while (unicodeUsed[nextUnusedUnicode]) + nextUnusedUnicode++; + var code = nextUnusedUnicode++; + charstrings.push({ + unicode: adaptUnicode(code), + code: code, + gid: i, + glyph: charsets[i] + }); + } + + // sort the array by the unicode value (again) + charstrings.sort(function type2CFFGetCharStringsSort(a, b) { + return a.unicode - b.unicode; + }); + return charstrings; + }, + + parseEncoding: function cff_parseencoding(pos, properties, strings, + charset) { + var encoding = {}; + var bytes = this.bytes; + var result = { + encoding: encoding, + hasSupplement: false + }; + + 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[sid]); + } + } + + if (pos == 0 || pos == 1) { + 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 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; + } + if (format & 0x80) { + readSupplement(); + result.hasSupplement = true; + } + } + return result; + }, + + parseCharsets: function cff_parsecharsets(pos, length, strings) { + if (pos == 0) { + return ISOAdobeCharset.slice(); + } else if (pos == 1) { + return ExpertCharset.slice(); + } else if (pos == 2) { + return ExpertSubsetCharset.slice(); + } + + var bytes = this.bytes; + 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 sid = (bytes[pos++] << 8) | bytes[pos++]; + charset.push(strings[sid]); + } + break; + case 1: + while (charset.length <= length) { + var sid = (bytes[pos++] << 8) | bytes[pos++]; + var count = bytes[pos++]; + for (var i = 0; i <= count; i++) + charset.push(strings[sid++]); + } + break; + case 2: + while (charset.length <= length) { + var sid = (bytes[pos++] << 8) | bytes[pos++]; + var count = (bytes[pos++] << 8) | bytes[pos++]; + for (var i = 0; i <= count; i++) + charset.push(strings[sid++]); + } + break; + default: + error('Unknown charset format'); + } + return charset; + }, + + parseCidMap: function cff_parsecharsets(pos, length) { + var bytes = this.bytes; + var format = bytes[pos++]; + + var encoding = {}; + var map = {encoding: encoding}; + + encoding[0] = 0; + + var gid = 1; + switch (format) { + case 0: + while (gid < length) { + var cid = (bytes[pos++] << 8) | bytes[pos++]; + encoding[cid] = gid++; + } + break; + case 1: + while (gid < length) { + var cid = (bytes[pos++] << 8) | bytes[pos++]; + var count = bytes[pos++]; + for (var i = 0; i <= count; i++) + encoding[cid++] = gid++; + } + break; + case 2: + while (gid < length) { + var cid = (bytes[pos++] << 8) | bytes[pos++]; + var count = (bytes[pos++] << 8) | bytes[pos++]; + for (var i = 0; i <= count; i++) + encoding[cid++] = gid++; + } + break; + default: + error('Unknown charset format'); + } + return map; + }, + + getPrivDict: function cff_getprivdict(baseDict, strings) { + var dict = {}; + + // default values + dict['defaultWidthX'] = 0; + dict['nominalWidthX'] = 0; + + for (var i = 0, ii = baseDict.length; i < ii; ++i) { + var pair = baseDict[i]; + var key = pair[0]; + var value = pair[1]; + switch (key) { + case 20: + dict['defaultWidthX'] = value[0]; + case 21: + dict['nominalWidthX'] = value[0]; + default: + TODO('interpret top dict key: ' + key); + } + } + return dict; + }, + getTopDict: function cff_gettopdict(baseDict, strings) { + var dict = {}; + + // default values + dict['Encoding'] = 0; + dict['charset'] = 0; + + for (var i = 0, ii = baseDict.length; i < ii; ++i) { + var pair = baseDict[i]; + var key = pair[0]; + var value = pair[1]; + switch (key) { + case 1: + dict['Notice'] = strings[value[0]]; + break; + case 4: + dict['Weight'] = strings[value[0]]; + break; + case 3094: + dict['BaseFontName'] = strings[value[0]]; + break; + case 5: + dict['FontBBox'] = value; + break; + case 13: + dict['UniqueID'] = value[0]; + break; + case 15: + dict['charset'] = value[0]; + break; + case 16: + dict['Encoding'] = value[0]; + break; + case 17: + dict['CharStrings'] = value[0]; + break; + case 18: + dict['Private'] = value; + break; + case 3102: + case 3103: + case 3104: + case 3105: + case 3106: + case 3107: + case 3108: + case 3109: + case 3110: + dict['cidOperatorPresent'] = true; + break; + default: + TODO('interpret top dict key'); + } + } + return dict; + }, + getStrings: function cff_getStrings(stringIndex) { + function bytesToString(bytesArray) { + var str = ''; + for (var i = 0, ii = bytesArray.length; i < ii; i++) + str += String.fromCharCode(bytesArray[i]); + return str; + } + + var stringArray = []; + for (var i = 0, ii = CFFStrings.length; i < ii; i++) + stringArray.push(CFFStrings[i]); + + for (var i = 0, ii = stringIndex.length; i < ii; i++) + stringArray.push(bytesToString(stringIndex.get(i).data)); + + return stringArray; + }, + parseHeader: function cff_parseHeader() { + var bytes = this.bytes; + var offset = 0; + + while (bytes[offset] != 1) + ++offset; + + if (offset != 0) { + warning('cff data is shifted'); + bytes = bytes.subarray(offset); + this.bytes = bytes; + } + + return { + endPos: bytes[2], + offsetSize: bytes[3] + }; + }, + parseDict: function cff_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 <= 246) { + return value - 139; + } else if (value <= 250) { + return ((value - 247) * 256) + dict[pos++] + 108; + } else if (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) { + ++pos; + var op = dict[pos]; + if ((op > 14 && op < 17) || + (op > 23 && op < 30) || op > 38) { + warn('Invalid CFF dictionary key: ' + op); + // trying to replace it with initialRandomSeed + // to pass sanitizer + dict[pos] = 19; + } + var b = (b << 8) | op; + } + if (!operands.length && b == 8 && + dict[pos + 1] == 9) { + // no operands for FamilyBlues, removing the key + // and next one is FamilyOtherBlues - skipping them + // also replacing FamilyBlues to pass sanitizer + dict[pos] = 139; + pos += 2; + continue; + } + entries.push([b, operands]); + operands = []; + ++pos; + } else { + operands.push(parseOperand()); + } + } + return entries; + }, + parseIndex: function cff_parseIndex(pos) { + var bytes = this.bytes; + var count = bytes[pos++] << 8 | bytes[pos++]; + var offsets = []; + 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]; + } + + return { + get: function index_get(index) { + if (index >= count) + return null; + + var start = offsets[index]; + var end = offsets[index + 1]; + return { + start: start, + end: end, + data: bytes.subarray(start, end) + }; + }, + length: count, + endPos: end + }; + } + }; + + return constructor; +})(); + |