648 lines
27 KiB
Perl
648 lines
27 KiB
Perl
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#------------------------------------------------------------------------------
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# File: Font.pm
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#
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# Description: Read meta information from font files
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#
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# Revisions: 2010/01/15 - P. Harvey Created
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#
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# References: 1) http://developer.apple.com/textfonts/TTRefMan/RM06/Chap6.html
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# 2) http://www.microsoft.com/typography/otspec/otff.htm
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# 3) http://partners.adobe.com/public/developer/opentype/index_font_file.html
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# 4) http://partners.adobe.com/public/developer/en/font/5178.PFM.pdf
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# 5) http://opensource.adobe.com/svn/opensource/flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/util/MimeMappings.java
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# 6) http://www.adobe.com/devnet/font/pdfs/5004.AFM_Spec.pdf
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#------------------------------------------------------------------------------
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package Image::ExifTool::Font;
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use strict;
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use vars qw($VERSION %ttLang);
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use Image::ExifTool qw(:DataAccess :Utils);
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$VERSION = '1.08';
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sub ProcessOTF($$);
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# TrueType 'name' platform codes
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my %ttPlatform = (
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0 => 'Unicode',
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1 => 'Macintosh',
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2 => 'ISO',
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3 => 'Windows',
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4 => 'Custom',
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);
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# convert TrueType 'name' character encoding to ExifTool Charset (ref 1/2)
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my %ttCharset = (
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Macintosh => {
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0 => 'MacRoman', 17 => 'MacMalayalam',
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1 => 'MacJapanese', 18 => 'MacSinhalese',
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2 => 'MacChineseTW', 19 => 'MacBurmese',
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3 => 'MacKorean', 20 => 'MacKhmer',
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4 => 'MacArabic', 21 => 'MacThai',
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5 => 'MacHebrew', 22 => 'MacLaotian',
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6 => 'MacGreek', 23 => 'MacGeorgian',
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7 => 'MacCyrillic', 24 => 'MacArmenian', # 7=Russian
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8 => 'MacRSymbol', 25 => 'MacChineseCN',
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9 => 'MacDevanagari', 26 => 'MacTibetan',
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10 => 'MacGurmukhi', 27 => 'MacMongolian',
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11 => 'MacGujarati', 28 => 'MacGeez',
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12 => 'MacOriya', 29 => 'MacCyrillic', # 29=Slavic
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13 => 'MacBengali', 30 => 'MacVietnam',
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14 => 'MacTamil', 31 => 'MacSindhi',
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15 => 'MacTelugu', 32 => '', # 32=uninterpreted
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16 => 'MacKannada',
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},
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Windows => {
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0 => 'Symbol', 4 => 'Big5',
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1 => 'UCS2', 5 => 'Wansung',
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2 => 'ShiftJIS', 6 => 'Johab',
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3 => 'PRC', 10 => 'UCS4',
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},
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Unicode => {
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# (we don't currently handle the various Unicode flavours)
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0 => 'UCS2', # Unicode 1.0 semantics
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1 => 'UCS2', # Unicode 1.1 semantics
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2 => 'UCS2', # ISO 10646 semantics
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3 => 'UCS2', # Unicode 2.0 and onwards semantics, Unicode BMP only.
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4 => 'UCS2', # Unicode 2.0 and onwards semantics, Unicode full repertoire.
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# 5 => Unicode Variation Sequences (not used in Naming table)
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},
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ISO => { # (deprecated)
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0 => 'UTF8', # (7-bit ASCII)
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1 => 'UCS2', # ISO 10646
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2 => 'Latin', # ISO 8859-1
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},
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Custom => { },
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);
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# convert TrueType 'name' language code to ExifTool language code
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%ttLang = (
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# Macintosh language codes (also used by QuickTime.pm)
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# oddities:
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# 49 - Cyrllic version 83 - Roman
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# 50 - Arabic version 84 - Arabic
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# 146 - with dot above
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Macintosh => {
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0 => 'en', 24 => 'lt', 48 => 'kk', 72 => 'ml', 129 => 'eu',
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1 => 'fr', 25 => 'pl', 49 => 'az', 73 => 'kn', 130 => 'ca',
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2 => 'de', 26 => 'hu', 50 => 'az', 74 => 'ta', 131 => 'la',
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3 => 'it', 27 => 'et', 51 => 'hy', 75 => 'te', 132 => 'qu',
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4 => 'nl', 28 => 'lv', 52 => 'ka', 76 => 'si', 133 => 'gn',
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5 => 'sv', 29 => 'smi', 53 => 'ro', 77 => 'my', 134 => 'ay',
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6 => 'es', 30 => 'fo', 54 => 'ky', 78 => 'km', 135 => 'tt',
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7 => 'da', 31 => 'fa', 55 => 'tg', 79 => 'lo', 136 => 'ug',
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8 => 'pt', 32 => 'ru', 56 => 'tk', 80 => 'vi', 137 => 'dz',
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9 => 'no', 33 => 'zh-CN', 57 => 'mn-MN', 81 => 'id', 138 => 'jv',
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10 => 'he', 34 => 'nl', 58 => 'mn-CN', 82 => 'tl', 139 => 'su',
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11 => 'ja', 35 => 'ga', 59 => 'ps', 83 => 'ms-MY', 140 => 'gl',
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12 => 'ar', 36 => 'sq', 60 => 'ku', 84 => 'ms-BN', 141 => 'af',
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13 => 'fi', 37 => 'ro', 61 => 'ks', 85 => 'am', 142 => 'br',
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14 => 'iu', 38 => 'cs', 62 => 'sd', 86 => 'ti', 144 => 'gd',
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15 => 'is', 39 => 'sk', 63 => 'bo', 87 => 'om', 145 => 'vg',
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16 => 'mt', 40 => 'sl', 64 => 'ne', 88 => 'so', 146 => 'ga',
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17 => 'tr', 41 => 'yi', 65 => 'sa', 89 => 'sw', 147 => 'rar',
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18 => 'hr', 42 => 'sr', 66 => 'mr', 90 => 'rw', 148 => 'el',
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19 => 'zh-TW', 43 => 'mk', 67 => 'bn', 91 => 'rn', 149 => 'kl',
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20 => 'ur', 44 => 'bg', 68 => 'as', 92 => 'ny', 150 => 'az',
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21 => 'hi', 45 => 'uk', 69 => 'gu', 93 => 'mg',
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22 => 'th', 46 => 'be', 70 => 'pa', 94 => 'eo',
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23 => 'ko', 47 => 'uz', 71 => 'or', 128 => 'cy',
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},
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# Windows language codes (http://msdn.microsoft.com/en-us/library/0h88fahh(VS.85).aspx)
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# Notes: This isn't an exact science. The reference above gives language codes
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# which are different from some ISO 639-1 numbers. Also, some Windows language
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# codes don't appear to have ISO 639-1 equivalents.
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# 0x0428 - fa by ref above
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# 0x048c - no ISO equivalent
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# 0x081a/0x83c - sr-SP
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# 0x0c0a - modern?
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# 0x2409 - Carribean country code not found in ISO 3166-1
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Windows => {
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0x0401 => 'ar-SA', 0x0438 => 'fo', 0x0481 => 'mi', 0x1409 => 'en-NZ',
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0x0402 => 'bg', 0x0439 => 'hi', 0x0482 => 'oc', 0x140a => 'es-CR',
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0x0403 => 'ca', 0x043a => 'mt', 0x0483 => 'co', 0x140c => 'fr-LU',
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0x0404 => 'zh-TW', 0x043b => 'se-NO', 0x0484 => 'gsw', 0x141a => 'bs-BA',
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0x0405 => 'cs', 0x043c => 'gd', 0x0485 => 'sah', 0x143b => 'smj-SE',
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0x0406 => 'da', 0x043d => 'yi', 0x0486 => 'ny', 0x1801 => 'ar-MA',
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0x0407 => 'de-DE', 0x043e => 'ms-MY', 0x0487 => 'rw', 0x1809 => 'en-IE',
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0x0408 => 'el', 0x043f => 'kk', 0x048c => 'Dari', 0x180a => 'es-PA',
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0x0409 => 'en-US', 0x0440 => 'ky', 0x0801 => 'ar-IQ', 0x180c => 'fr-MC',
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0x040a => 'es-ES', 0x0441 => 'sw', 0x0804 => 'zh-CN', 0x181a => 'sr-BA',
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0x040b => 'fi', 0x0442 => 'tk', 0x0807 => 'de-CH', 0x183b => 'sma-NO',
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0x040c => 'fr-FR', 0x0443 => 'uz-UZ', 0x0809 => 'en-GB', 0x1c01 => 'ar-TN',
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0x040d => 'he', 0x0444 => 'tt', 0x080a => 'es-MX', 0x1c09 => 'en-ZA',
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0x040e => 'hu', 0x0445 => 'bn-IN', 0x080c => 'fr-BE', 0x1c0a => 'es-DO',
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0x040f => 'is', 0x0446 => 'pa', 0x0810 => 'it-CH', 0x1c1a => 'sr-BA',
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0x0410 => 'it-IT', 0x0447 => 'gu', 0x0813 => 'nl-BE', 0x1c3b => 'sma-SE',
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0x0411 => 'ja', 0x0448 => 'wo', 0x0814 => 'nn', 0x2001 => 'ar-OM',
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0x0412 => 'ko', 0x0449 => 'ta', 0x0816 => 'pt-PT', 0x2009 => 'en-JM',
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0x0413 => 'nl-NL', 0x044a => 'te', 0x0818 => 'ro-MO', 0x200a => 'es-VE',
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0x0414 => 'no-NO', 0x044b => 'kn', 0x0819 => 'ru-MO', 0x201a => 'bs-BA',
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0x0415 => 'pl', 0x044c => 'ml', 0x081a => 'sr-RS', 0x203b => 'sms',
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0x0416 => 'pt-BR', 0x044d => 'as', 0x081d => 'sv-FI', 0x2401 => 'ar-YE',
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0x0417 => 'rm', 0x044e => 'mr', 0x082c => 'az-AZ', 0x2409 => 'en-CB',
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0x0418 => 'ro', 0x044f => 'sa', 0x082e => 'dsb', 0x240a => 'es-CO',
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0x0419 => 'ru', 0x0450 => 'mn-MN', 0x083b => 'se-SE', 0x243b => 'smn',
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0x041a => 'hr', 0x0451 => 'bo', 0x083c => 'ga', 0x2801 => 'ar-SY',
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0x041b => 'sk', 0x0452 => 'cy', 0x083e => 'ms-BN', 0x2809 => 'en-BZ',
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0x041c => 'sq', 0x0453 => 'km', 0x0843 => 'uz-UZ', 0x280a => 'es-PE',
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0x041d => 'sv-SE', 0x0454 => 'lo', 0x0845 => 'bn-BD', 0x2c01 => 'ar-JO',
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0x041e => 'th', 0x0456 => 'gl', 0x0850 => 'mn-CN', 0x2c09 => 'en-TT',
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0x041f => 'tr', 0x0457 => 'kok', 0x085d => 'iu-CA', 0x2c0a => 'es-AR',
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0x0420 => 'ur', 0x045a => 'syr', 0x085f => 'tmh', 0x3001 => 'ar-LB',
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0x0421 => 'id', 0x045b => 'si', 0x086b => 'qu-EC', 0x3009 => 'en-ZW',
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0x0422 => 'uk', 0x045d => 'iu-CA', 0x0c01 => 'ar-EG', 0x300a => 'es-EC',
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0x0423 => 'be', 0x045e => 'am', 0x0c04 => 'zh-HK', 0x3401 => 'ar-KW',
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0x0424 => 'sl', 0x0461 => 'ne', 0x0c07 => 'de-AT', 0x3409 => 'en-PH',
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0x0425 => 'et', 0x0462 => 'fy', 0x0c09 => 'en-AU', 0x340a => 'es-CL',
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0x0426 => 'lv', 0x0463 => 'ps', 0x0c0a => 'es-ES', 0x3801 => 'ar-AE',
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0x0427 => 'lt', 0x0464 => 'fil', 0x0c0c => 'fr-CA', 0x380a => 'es-UY',
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0x0428 => 'tg', 0x0465 => 'dv', 0x0c1a => 'sr-RS', 0x3c01 => 'ar-BH',
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0x042a => 'vi', 0x0468 => 'ha', 0x0c3b => 'se-FI', 0x3c0a => 'es-PY',
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0x042b => 'hy', 0x046a => 'yo', 0x0c6b => 'qu-PE', 0x4001 => 'ar-QA',
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0x042c => 'az-AZ', 0x046b => 'qu-BO', 0x1001 => 'ar-LY', 0x4009 => 'en-IN',
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0x042d => 'eu', 0x046c => 'st', 0x1004 => 'zh-SG', 0x400a => 'es-BO',
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0x042e => 'hsb', 0x046d => 'ba', 0x1007 => 'de-LU', 0x4409 => 'en-MY',
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0x042f => 'mk', 0x046e => 'lb', 0x1009 => 'en-CA', 0x440a => 'es-SV',
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0x0430 => 'st', 0x046f => 'kl', 0x100a => 'es-GT', 0x4809 => 'en-SG',
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0x0431 => 'ts', 0x0470 => 'ig', 0x100c => 'fr-CH', 0x480a => 'es-HN',
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0x0432 => 'tn', 0x0478 => 'yi', 0x101a => 'hr-BA', 0x4c0a => 'es-NI',
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0x0434 => 'xh', 0x047a => 'arn', 0x103b => 'smj-NO',0x500a => 'es-PR',
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0x0435 => 'zu', 0x047c => 'moh', 0x1401 => 'ar-DZ', 0x540a => 'es-US',
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0x0436 => 'af', 0x047e => 'br', 0x1404 => 'zh-MO',
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0x0437 => 'ka', 0x0480 => 'ug', 0x1407 => 'de-LI',
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},
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Unicode => { },
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ISO => { },
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Custom => { },
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);
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# eclectic table of tags for various format font files
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%Image::ExifTool::Font::Main = (
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GROUPS => { 2 => 'Document' },
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NOTES => q{
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This table contains a collection of tags found in font files of various
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formats. ExifTool current recognizes OTF, TTF, TTC, DFONT, PFA, PFB, PFM,
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AFM, ACFM and AMFM font files.
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},
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name => {
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SubDirectory => { TagTable => 'Image::ExifTool::Font::Name' },
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},
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PFM => {
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Name => 'PFMHeader',
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SubDirectory => { TagTable => 'Image::ExifTool::Font::PFM' },
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},
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PSInfo => {
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Name => 'PSFontInfo',
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SubDirectory => { TagTable => 'Image::ExifTool::Font::PSInfo' },
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},
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AFM => {
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Name => 'AFM',
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SubDirectory => { TagTable => 'Image::ExifTool::Font::AFM' },
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},
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numfonts => 'NumFonts',
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fontname => 'FontName',
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postfont => {
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Name => 'PostScriptFontName',
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Description => 'PostScript Font Name',
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},
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);
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# TrueType name tags (ref 1/2)
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%Image::ExifTool::Font::Name = (
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GROUPS => { 2 => 'Document' },
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NOTES => q{
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The following tags are extracted from the TrueType font "name" table found
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in OTF, TTF, TTC and DFONT files. These tags support localized languages by
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adding a hyphen followed by a language code to the end of the tag name (eg.
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"Copyright-fr" or "License-en-US"). Tags with no language code use the
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default language of "en".
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},
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0 => { Name => 'Copyright', Groups => { 2 => 'Author' } },
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1 => 'FontFamily',
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2 => 'FontSubfamily',
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3 => 'FontSubfamilyID',
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4 => 'FontName', # full name
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5 => 'NameTableVersion',
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6 => { Name => 'PostScriptFontName', Description => 'PostScript Font Name' },
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7 => 'Trademark',
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8 => 'Manufacturer',
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9 => 'Designer',
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10 => 'Description',
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11 => 'VendorURL',
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12 => 'DesignerURL',
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13 => 'License',
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14 => 'LicenseInfoURL',
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16 => 'PreferredFamily',
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17 => 'PreferredSubfamily',
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18 => 'CompatibleFontName',
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19 => 'SampleText',
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20 => {
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Name => 'PostScriptFontName',
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Description => 'PostScript Font Name',
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},
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21 => 'WWSFamilyName',
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22 => 'WWSSubfamilyName',
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);
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# PostScript Font Metric file header (ref 4)
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%Image::ExifTool::Font::PFM = (
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GROUPS => { 2 => 'Document' },
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PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
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NOTES => 'Tags extracted from the PFM file header.',
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0 => {
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Name => 'PFMVersion',
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Format => 'int16u',
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PrintConv => 'sprintf("%x.%.2x",$val>>8,$val&0xff)',
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},
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6 => { Name => 'Copyright', Format => 'string[60]', Groups => { 2 => 'Author' } },
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66 => { Name => 'FontType', Format => 'int16u' },
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68 => { Name => 'PointSize', Format => 'int16u' },
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70 => { Name => 'YResolution', Format => 'int16u' },
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72 => { Name => 'XResolution', Format => 'int16u' },
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74 => { Name => 'Ascent', Format => 'int16u' },
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76 => { Name => 'InternalLeading', Format => 'int16u' },
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78 => { Name => 'ExternalLeading', Format => 'int16u' },
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80 => { Name => 'Italic' },
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81 => { Name => 'Underline' },
|
||
|
|
82 => { Name => 'Strikeout' },
|
||
|
|
83 => { Name => 'Weight', Format => 'int16u' },
|
||
|
|
85 => { Name => 'CharacterSet' },
|
||
|
|
86 => { Name => 'PixWidth', Format => 'int16u' },
|
||
|
|
88 => { Name => 'PixHeight', Format => 'int16u' },
|
||
|
|
90 => { Name => 'PitchAndFamily' },
|
||
|
|
91 => { Name => 'AvgWidth', Format => 'int16u' },
|
||
|
|
93 => { Name => 'MaxWidth', Format => 'int16u' },
|
||
|
|
95 => { Name => 'FirstChar' },
|
||
|
|
96 => { Name => 'LastChar' },
|
||
|
|
97 => { Name => 'DefaultChar' },
|
||
|
|
98 => { Name => 'BreakChar' },
|
||
|
|
99 => { Name => 'WidthBytes', Format => 'int16u' },
|
||
|
|
# 101 => { Name => 'DeviceTypeOffset', Format => 'int32u' },
|
||
|
|
# 105 => { Name => 'FontNameOffset', Format => 'int32u' },
|
||
|
|
# 109 => { Name => 'BitsPointer', Format => 'int32u' },
|
||
|
|
# 113 => { Name => 'BitsOffset', Format => 'int32u' },
|
||
|
|
);
|
||
|
|
|
||
|
|
# PostScript FontInfo attributes (PFA, PFB) (ref PH)
|
||
|
|
%Image::ExifTool::Font::PSInfo = (
|
||
|
|
GROUPS => { 2 => 'Document' },
|
||
|
|
NOTES => 'Tags extracted from PostScript font files (PFA and PFB).',
|
||
|
|
FullName => { },
|
||
|
|
FamilyName => { Name => 'FontFamily' },
|
||
|
|
Weight => { },
|
||
|
|
ItalicAngle => { },
|
||
|
|
isFixedPitch=> { },
|
||
|
|
UnderlinePosition => { },
|
||
|
|
UnderlineThickness => { },
|
||
|
|
Copyright => { Groups => { 2 => 'Author' } },
|
||
|
|
Notice => { Groups => { 2 => 'Author' } },
|
||
|
|
version => { },
|
||
|
|
FontName => { },
|
||
|
|
FontType => { },
|
||
|
|
FSType => { },
|
||
|
|
);
|
||
|
|
|
||
|
|
# Adobe Font Metrics tags (AFM) (ref 6)
|
||
|
|
%Image::ExifTool::Font::AFM = (
|
||
|
|
GROUPS => { 2 => 'Document' },
|
||
|
|
NOTES => 'Tags extracted from Adobe Font Metrics files (AFM, ACFM and AMFM).',
|
||
|
|
'Creation Date' => { Name => 'CreateDate', Groups => { 2 => 'Time' } },
|
||
|
|
FontName => { },
|
||
|
|
FullName => { },
|
||
|
|
FamilyName => { Name => 'FontFamily' },
|
||
|
|
Weight => { },
|
||
|
|
Version => { },
|
||
|
|
Notice => { Groups => { 2 => 'Author' } },
|
||
|
|
EncodingScheme => { },
|
||
|
|
MappingScheme => { },
|
||
|
|
EscChar => { },
|
||
|
|
CharacterSet=> { },
|
||
|
|
Characters => { },
|
||
|
|
IsBaseFont => { },
|
||
|
|
# VVector => { },
|
||
|
|
IsFixedV => { },
|
||
|
|
CapHeight => { },
|
||
|
|
XHeight => { },
|
||
|
|
Ascender => { },
|
||
|
|
Descender => { },
|
||
|
|
);
|
||
|
|
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
# Read information from a TrueType font collection (TTC) (refs 2,3)
|
||
|
|
# Inputs: 0) ExifTool ref, 1) dirInfo ref
|
||
|
|
# Returns: 1 on success, 0 if this wasn't a valid TrueType font collection
|
||
|
|
sub ProcessTTC($$)
|
||
|
|
{
|
||
|
|
my ($et, $dirInfo) = @_;
|
||
|
|
my $raf = $$dirInfo{RAF};
|
||
|
|
my ($buff, $i);
|
||
|
|
|
||
|
|
return 0 unless $raf->Read($buff, 12) == 12;
|
||
|
|
return 0 unless $buff =~ /^ttcf\0[\x01\x02]\0\0/;
|
||
|
|
SetByteOrder('MM');
|
||
|
|
my $num = Get32u(\$buff, 8);
|
||
|
|
# might as well put a limit on the number of fonts we will parse (< 256)
|
||
|
|
return 0 unless $num < 0x100 and $raf->Read($buff, $num * 4) == $num * 4;
|
||
|
|
$et->SetFileType('TTC');
|
||
|
|
return 1 if $$et{OPTIONS}{FastScan} and $$et{OPTIONS}{FastScan} == 3;
|
||
|
|
my $tagTablePtr = GetTagTable('Image::ExifTool::Font::Main');
|
||
|
|
$et->HandleTag($tagTablePtr, 'numfonts', $num);
|
||
|
|
# loop through all fonts in the collection
|
||
|
|
for ($i=0; $i<$num; ++$i) {
|
||
|
|
my $n = $i + 1;
|
||
|
|
$et->VPrint(0, "Font $n:\n");
|
||
|
|
$$et{SET_GROUP1} = "+$n";
|
||
|
|
my $offset = Get32u(\$buff, $i * 4);
|
||
|
|
$raf->Seek($offset, 0) or last;
|
||
|
|
ProcessOTF($et, $dirInfo) or last;
|
||
|
|
}
|
||
|
|
delete $$et{SET_GROUP1};
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
# Read information from a TrueType font file (OTF or TTF) (refs 1,2)
|
||
|
|
# Inputs: 0) ExifTool ref, 1) dirInfo ref
|
||
|
|
# Returns: 1 on success, 0 if this wasn't a valid TrueType font file
|
||
|
|
sub ProcessOTF($$)
|
||
|
|
{
|
||
|
|
my ($et, $dirInfo) = @_;
|
||
|
|
my $raf = $$dirInfo{RAF};
|
||
|
|
my ($tbl, $buff, $pos, $i);
|
||
|
|
my $base = $$dirInfo{Base} || 0;
|
||
|
|
|
||
|
|
return 0 unless $raf->Read($buff, 12) == 12;
|
||
|
|
return 0 unless $buff =~ /^(\0\x01\0\0|OTTO|true|typ1|\xa5(kbd|lst))[\0\x01]/;
|
||
|
|
|
||
|
|
$et->SetFileType($1 eq 'OTTO' ? 'OTF' : 'TTF');
|
||
|
|
return 1 if $$et{OPTIONS}{FastScan} and $$et{OPTIONS}{FastScan} == 3;
|
||
|
|
SetByteOrder('MM');
|
||
|
|
my $numTables = Get16u(\$buff, 4);
|
||
|
|
return 0 unless $numTables > 0 and $numTables < 0x200;
|
||
|
|
my $len = $numTables * 16;
|
||
|
|
return 0 unless $raf->Read($tbl, $len) == $len;
|
||
|
|
|
||
|
|
my $verbose = $et->Options('Verbose');
|
||
|
|
my $oldIndent = $$et{INDENT};
|
||
|
|
$$et{INDENT} .= '| ';
|
||
|
|
$et->VerboseDir('TrueType', $numTables) if $verbose;
|
||
|
|
|
||
|
|
for ($pos=0; $pos<$len; $pos+=16) {
|
||
|
|
# look for 'name' table
|
||
|
|
my $tag = substr($tbl, $pos, 4);
|
||
|
|
next unless $tag eq 'name' or $verbose;
|
||
|
|
my $offset = Get32u(\$tbl, $pos + 8);
|
||
|
|
my $size = Get32u(\$tbl, $pos + 12);
|
||
|
|
unless ($raf->Seek($offset+$base, 0) and $raf->Read($buff, $size) == $size) {
|
||
|
|
$et->Warn("Error reading '${tag}' data");
|
||
|
|
next;
|
||
|
|
}
|
||
|
|
if ($verbose) {
|
||
|
|
$tag =~ s/([\0-\x1f\x80-\xff])/sprintf('\x%.2x',ord $1)/ge;
|
||
|
|
my $str = sprintf("%s%d) Tag '%s' (offset 0x%.4x, %d bytes)\n",
|
||
|
|
$$et{INDENT}, $pos/16, $tag, $offset, $size);
|
||
|
|
$et->VPrint(0, $str);
|
||
|
|
$et->VerboseDump(\$buff, Addr => $offset) if $verbose > 2;
|
||
|
|
next unless $tag eq 'name';
|
||
|
|
}
|
||
|
|
next unless $size >= 8;
|
||
|
|
my $entries = Get16u(\$buff, 2);
|
||
|
|
my $recEnd = 6 + $entries * 12;
|
||
|
|
if ($recEnd > $size) {
|
||
|
|
$et->Warn('Truncated name record');
|
||
|
|
last;
|
||
|
|
}
|
||
|
|
my $strStart = Get16u(\$buff, 4);
|
||
|
|
if ($strStart < $recEnd or $strStart > $size) {
|
||
|
|
$et->Warn('Invalid string offset');
|
||
|
|
last;
|
||
|
|
}
|
||
|
|
# parse language-tag record (in format 1 Naming table only) (ref 2)
|
||
|
|
my %langTag;
|
||
|
|
if (Get16u(\$buff, 0) == 1 and $recEnd + 2 <= $size) {
|
||
|
|
my $langTags = Get16u(\$buff, $recEnd);
|
||
|
|
if ($langTags and $recEnd + 2 + $langTags * 4 < $size) {
|
||
|
|
for ($i=0; $i<$langTags; ++$i) {
|
||
|
|
my $pt = $recEnd + 2 + $i * 4;
|
||
|
|
my $langLen = Get16u(\$buff, $pt);
|
||
|
|
# make sure the language string length is reasonable (UTF-16BE)
|
||
|
|
last if $langLen == 0 or $langLen & 0x01 or $langLen > 40;
|
||
|
|
my $langPt = Get16u(\$buff, $pt + 2) + $strStart;
|
||
|
|
last if $langPt + $langLen > $size;
|
||
|
|
my $lang = substr($buff, $langPt, $langLen);
|
||
|
|
$lang = $et->Decode($lang,'UCS2','MM','UTF8');
|
||
|
|
$lang =~ tr/-_a-zA-Z0-9//dc; # remove naughty characters
|
||
|
|
$langTag{$i + 0x8000} = $lang;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
my $tagTablePtr = GetTagTable('Image::ExifTool::Font::Name');
|
||
|
|
$$et{INDENT} .= '| ';
|
||
|
|
$et->VerboseDir('Name', $entries) if $verbose;
|
||
|
|
for ($i=0; $i<$entries; ++$i) {
|
||
|
|
my $pt = 6 + $i * 12;
|
||
|
|
my $platform = Get16u(\$buff, $pt);
|
||
|
|
my $encoding = Get16u(\$buff, $pt + 2);
|
||
|
|
my $langID = Get16u(\$buff, $pt + 4);
|
||
|
|
my $nameID = Get16u(\$buff, $pt + 6);
|
||
|
|
my $strLen = Get16u(\$buff, $pt + 8);
|
||
|
|
my $strPt = Get16u(\$buff, $pt + 10) + $strStart;
|
||
|
|
if ($strPt + $strLen <= $size) {
|
||
|
|
my $val = substr($buff, $strPt, $strLen);
|
||
|
|
my ($lang, $charset, $extra);
|
||
|
|
my $sys = $ttPlatform{$platform};
|
||
|
|
# translate from specified encoding
|
||
|
|
if ($sys) {
|
||
|
|
$lang = $ttLang{$sys}{$langID} || $langTag{$langID};
|
||
|
|
$charset = $ttCharset{$sys}{$encoding};
|
||
|
|
if (not $charset) {
|
||
|
|
if (not defined $charset and not $$et{FontWarn}) {
|
||
|
|
$et->Warn("Unknown $sys character set ($encoding)");
|
||
|
|
$$et{FontWarn} = 1;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
# translate to ExifTool character set
|
||
|
|
$val = $et->Decode($val, $charset);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
$et->Warn("Unknown platform ($platform) for name $nameID");
|
||
|
|
}
|
||
|
|
# get the tagInfo for our specific language (use 'en' for default)
|
||
|
|
my $tagInfo = $et->GetTagInfo($tagTablePtr, $nameID);
|
||
|
|
if ($tagInfo and $lang and $lang ne 'en') {
|
||
|
|
my $langInfo = Image::ExifTool::GetLangInfo($tagInfo, $lang);
|
||
|
|
$tagInfo = $langInfo if $langInfo;
|
||
|
|
}
|
||
|
|
if ($verbose) {
|
||
|
|
$langID > 0x400 and $langID = sprintf('0x%x', $langID);
|
||
|
|
$extra = ", Plat=$platform/" . ($sys || 'Unknown') . ', ' .
|
||
|
|
"Enc=$encoding/" . ($charset || 'Unknown') . ', ' .
|
||
|
|
"Lang=$langID/" . ($lang || 'Unknown');
|
||
|
|
}
|
||
|
|
$et->HandleTag($tagTablePtr, $nameID, $val,
|
||
|
|
TagInfo => $tagInfo,
|
||
|
|
DataPt => \$buff,
|
||
|
|
DataPos => $offset,
|
||
|
|
Start => $strPt,
|
||
|
|
Size => $strLen,
|
||
|
|
Index => $i,
|
||
|
|
Extra => $extra,
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$$et{INDENT} = $oldIndent . '| ';
|
||
|
|
last unless $verbose;
|
||
|
|
}
|
||
|
|
$$et{INDENT} = $oldIndent;
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
# Read information from an Adobe Font Metrics file (AFM, ACFM, AMFM) (ref 6)
|
||
|
|
# Inputs: 0) ExifTool ref, 1) dirInfo ref
|
||
|
|
# Returns: 1 on success, 0 if this wasn't a recognized AFM-type file
|
||
|
|
sub ProcessAFM($$)
|
||
|
|
{
|
||
|
|
my ($et, $dirInfo) = @_;
|
||
|
|
my $raf = $$dirInfo{RAF};
|
||
|
|
my ($buff, $comment);
|
||
|
|
|
||
|
|
require Image::ExifTool::PostScript;
|
||
|
|
local $/ = Image::ExifTool::PostScript::GetInputRecordSeparator($raf);
|
||
|
|
$raf->ReadLine($buff);
|
||
|
|
return 0 unless $buff =~ /^Start(Comp|Master)?FontMetrics\s+\d+/;
|
||
|
|
my $ftyp = $1 ? ($1 eq 'Comp' ? 'ACFM' : 'AMFM') : 'AFM';
|
||
|
|
$et->SetFileType($ftyp, 'application/x-font-afm');
|
||
|
|
return 1 if $$et{OPTIONS}{FastScan} and $$et{OPTIONS}{FastScan} == 3;
|
||
|
|
my $tagTablePtr = GetTagTable('Image::ExifTool::Font::AFM');
|
||
|
|
|
||
|
|
for (;;) {
|
||
|
|
$raf->ReadLine($buff) or last;
|
||
|
|
if (defined $comment and $buff !~ /^Comment\s/) {
|
||
|
|
$et->FoundTag('Comment', $comment);
|
||
|
|
undef $comment;
|
||
|
|
}
|
||
|
|
$buff =~ /^(\w+)\s+(.*?)[\x0d\x0a]/ or next;
|
||
|
|
my ($tag, $val) = ($1, $2);
|
||
|
|
if ($tag eq 'Comment' and $val =~ /^(Creation Date):\s+(.*)/) {
|
||
|
|
($tag, $val) = ($1, $2);
|
||
|
|
}
|
||
|
|
$val =~ s/^\((.*)\)$/$1/; # (some values may be in brackets)
|
||
|
|
if ($tag eq 'Comment') {
|
||
|
|
# concatinate all comments into a single value
|
||
|
|
$comment = defined($comment) ? "$comment\n$val" : $val;
|
||
|
|
next;
|
||
|
|
}
|
||
|
|
unless ($et->HandleTag($tagTablePtr, $tag, $val)) {
|
||
|
|
# end parsing if we start any subsection
|
||
|
|
last if $tag =~ /^Start/ and $tag ne 'StartDirection';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
# Read information from various format font files
|
||
|
|
# Inputs: 0) ExifTool ref, 1) dirInfo ref
|
||
|
|
# Returns: 1 on success, 0 if this wasn't a recognized Font file
|
||
|
|
sub ProcessFont($$)
|
||
|
|
{
|
||
|
|
my ($et, $dirInfo) = @_;
|
||
|
|
my $raf = $$dirInfo{RAF};
|
||
|
|
my ($buff, $buf2, $rtnVal);
|
||
|
|
return 0 unless $raf->Read($buff, 24) and $raf->Seek(0,0);
|
||
|
|
if ($buff =~ /^(\0\x01\0\0|OTTO|true|typ1)[\0\x01]/) { # OTF, TTF
|
||
|
|
$rtnVal = ProcessOTF($et, $dirInfo);
|
||
|
|
} elsif ($buff =~ /^ttcf\0[\x01\x02]\0\0/) { # TTC
|
||
|
|
$rtnVal = ProcessTTC($et, $dirInfo);
|
||
|
|
} elsif ($buff =~ /^Start(Comp|Master)?FontMetrics\s+\d+/s) { # AFM
|
||
|
|
$rtnVal = ProcessAFM($et, $dirInfo);
|
||
|
|
} elsif ($buff =~ /^(.{6})?%!(PS-(AdobeFont-|Bitstream )|FontType1-)/s) {# PFA, PFB
|
||
|
|
$raf->Seek(6,0) and $et->SetFileType('PFB') if $1;
|
||
|
|
require Image::ExifTool::PostScript;
|
||
|
|
$rtnVal = Image::ExifTool::PostScript::ProcessPS($et, $dirInfo);
|
||
|
|
} elsif ($buff =~ /^\0[\x01\x02]/ and $raf->Seek(0, 2) and # PFM
|
||
|
|
# validate file size
|
||
|
|
$raf->Tell() > 117 and $raf->Tell() == unpack('x2V',$buff) and
|
||
|
|
# read PFM header
|
||
|
|
$raf->Seek(0,0) and $raf->Read($buff,117) == 117 and
|
||
|
|
# validate "DeviceType" string (must be "PostScript\0")
|
||
|
|
SetByteOrder('II') and $raf->Seek(Get32u(\$buff, 101), 0) and
|
||
|
|
# the DeviceType should be "PostScript\0", but FontForge
|
||
|
|
# incorrectly writes "Postscript\0", so ignore case
|
||
|
|
$raf->Read($buf2, 11) == 11 and lc($buf2) eq "postscript\0")
|
||
|
|
{
|
||
|
|
$et->SetFileType('PFM');
|
||
|
|
return 1 if $$et{OPTIONS}{FastScan} and $$et{OPTIONS}{FastScan} == 3;
|
||
|
|
SetByteOrder('II');
|
||
|
|
my $tagTablePtr = GetTagTable('Image::ExifTool::Font::Main');
|
||
|
|
# process the PFM header
|
||
|
|
$et->HandleTag($tagTablePtr, 'PFM', $buff);
|
||
|
|
# extract the font names
|
||
|
|
my $nameOff = Get32u(\$buff, 105);
|
||
|
|
if ($raf->Seek($nameOff, 0) and $raf->Read($buff, 256) and
|
||
|
|
$buff =~ /^([\x20-\xff]+)\0([\x20-\xff]+)\0/)
|
||
|
|
{
|
||
|
|
$et->HandleTag($tagTablePtr, 'fontname', $1);
|
||
|
|
$et->HandleTag($tagTablePtr, 'postfont', $2);
|
||
|
|
}
|
||
|
|
$rtnVal = 1;
|
||
|
|
} else {
|
||
|
|
$rtnVal = 0;
|
||
|
|
}
|
||
|
|
return $rtnVal;
|
||
|
|
}
|
||
|
|
|
||
|
|
1; # end
|
||
|
|
|
||
|
|
__END__
|
||
|
|
|
||
|
|
=head1 NAME
|
||
|
|
|
||
|
|
Image::ExifTool::Font - Read meta information from font files
|
||
|
|
|
||
|
|
=head1 SYNOPSIS
|
||
|
|
|
||
|
|
This module is used by Image::ExifTool
|
||
|
|
|
||
|
|
=head1 DESCRIPTION
|
||
|
|
|
||
|
|
This module contains the routines required by Image::ExifTool to read meta
|
||
|
|
information from various format font files. Currently recognized font file
|
||
|
|
types are OTF, TTF, TTC, DFONT, PFA, PFB, PFM, AFM, ACFM and AMFM.
|
||
|
|
|
||
|
|
=head1 AUTHOR
|
||
|
|
|
||
|
|
Copyright 2003-2018, Phil Harvey (phil at owl.phy.queensu.ca)
|
||
|
|
|
||
|
|
This library is free software; you can redistribute it and/or modify it
|
||
|
|
under the same terms as Perl itself.
|
||
|
|
|
||
|
|
=head1 REFERENCES
|
||
|
|
|
||
|
|
=over 4
|
||
|
|
|
||
|
|
=item L<http://developer.apple.com/textfonts/TTRefMan/RM06/Chap6.html>
|
||
|
|
|
||
|
|
=item L<http://www.microsoft.com/typography/otspec/otff.htm>
|
||
|
|
|
||
|
|
=item L<http://partners.adobe.com/public/developer/opentype/index_font_file.html>
|
||
|
|
|
||
|
|
=item L<http://partners.adobe.com/public/developer/en/font/5178.PFM.pdf>
|
||
|
|
|
||
|
|
=item L<http://opensource.adobe.com/svn/opensource/flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/util/MimeMappings.java>
|
||
|
|
|
||
|
|
=item L<http://www.adobe.com/devnet/font/pdfs/5004.AFM_Spec.pdf>
|
||
|
|
|
||
|
|
=back
|
||
|
|
|
||
|
|
=head1 SEE ALSO
|
||
|
|
|
||
|
|
L<Image::ExifTool::TagNames/Font Tags>,
|
||
|
|
L<Image::ExifTool(3pm)|Image::ExifTool>
|
||
|
|
|
||
|
|
=cut
|
||
|
|
|