| 1 | #------------------------------------------------------------------------------
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| 2 | # File: Font.pm
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| 3 | #
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| 4 | # Description: Read meta information from font files
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| 5 | #
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| 6 | # Revisions: 2010/01/15 - P. Harvey Created
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| 7 | #
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| 8 | # References: 1) http://developer.apple.com/textfonts/TTRefMan/RM06/Chap6.html
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| 9 | # 2) http://www.microsoft.com/typography/otspec/otff.htm
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| 10 | # 3) http://partners.adobe.com/public/developer/opentype/index_font_file.html
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| 11 | # 4) http://partners.adobe.com/public/developer/en/font/5178.PFM.pdf
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| 12 | # 5) http://opensource.adobe.com/svn/opensource/flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/util/MimeMappings.java
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| 13 | # 6) http://www.adobe.com/devnet/font/pdfs/5004.AFM_Spec.pdf
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| 14 | #------------------------------------------------------------------------------
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| 15 |
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| 16 | package Image::ExifTool::Font;
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| 17 |
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| 18 | use strict;
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| 19 | use vars qw($VERSION %ttLang);
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| 20 | use Image::ExifTool qw(:DataAccess :Utils);
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| 21 |
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| 22 | $VERSION = '1.05';
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| 23 |
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| 24 | sub ProcessOTF($$);
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| 25 |
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| 26 | # TrueType 'name' platform codes
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| 27 | my %ttPlatform = (
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| 28 | 0 => 'Unicode',
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| 29 | 1 => 'Macintosh',
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| 30 | 2 => 'ISO',
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| 31 | 3 => 'Windows',
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| 32 | 4 => 'Custom',
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| 33 | );
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| 34 |
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| 35 | # convert TrueType 'name' character encoding to ExifTool Charset (ref 1/2)
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| 36 | my %ttCharset = (
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| 37 | Macintosh => {
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| 38 | 0 => 'MacRoman', 17 => 'MacMalayalam',
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| 39 | 1 => 'MacJapanese', 18 => 'MacSinhalese',
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| 40 | 2 => 'MacChineseTW', 19 => 'MacBurmese',
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| 41 | 3 => 'MacKorean', 20 => 'MacKhmer',
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| 42 | 4 => 'MacArabic', 21 => 'MacThai',
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| 43 | 5 => 'MacHebrew', 22 => 'MacLaotian',
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| 44 | 6 => 'MacGreek', 23 => 'MacGeorgian',
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| 45 | 7 => 'MacCyrillic', 24 => 'MacArmenian', # 7=Russian
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| 46 | 8 => 'MacRSymbol', 25 => 'MacChineseCN',
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| 47 | 9 => 'MacDevanagari', 26 => 'MacTibetan',
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| 48 | 10 => 'MacGurmukhi', 27 => 'MacMongolian',
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| 49 | 11 => 'MacGujarati', 28 => 'MacGeez',
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| 50 | 12 => 'MacOriya', 29 => 'MacCyrillic', # 29=Slavic
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| 51 | 13 => 'MacBengali', 30 => 'MacVietnam',
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| 52 | 14 => 'MacTamil', 31 => 'MacSindhi',
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| 53 | 15 => 'MacTelugu', 32 => '', # 32=uninterpreted
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| 54 | 16 => 'MacKannada',
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| 55 | },
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| 56 | Windows => {
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| 57 | 0 => 'Symbol', 4 => 'Big5',
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| 58 | 1 => 'UCS2', 5 => 'Wansung',
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| 59 | 2 => 'ShiftJIS', 6 => 'Johab',
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| 60 | 3 => 'PRC', 10 => 'UCS4',
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| 61 | },
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| 62 | Unicode => {
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| 63 | # (we don't currently handle the various Unicode flavours)
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| 64 | 0 => 'UCS2', # Unicode 1.0 semantics
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| 65 | 1 => 'UCS2', # Unicode 1.1 semantics
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| 66 | 2 => 'UCS2', # ISO 10646 semantics
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| 67 | 3 => 'UCS2', # Unicode 2.0 and onwards semantics, Unicode BMP only.
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| 68 | 4 => 'UCS2', # Unicode 2.0 and onwards semantics, Unicode full repertoire.
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| 69 | # 5 => Unicode Variation Sequences (not used in Naming table)
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| 70 | },
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| 71 | ISO => { # (deprecated)
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| 72 | 0 => 'UTF8', # (7-bit ASCII)
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| 73 | 1 => 'UCS2', # ISO 10646
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| 74 | 2 => 'Latin', # ISO 8859-1
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| 75 | },
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| 76 | Custom => { },
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| 77 | );
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| 78 |
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| 79 | # convert TrueType 'name' language code to ExifTool language code
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| 80 | %ttLang = (
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| 81 | # Macintosh language codes (also used by QuickTime.pm)
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| 82 | # oddities:
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| 83 | # 49 - Cyrllic version 83 - Roman
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| 84 | # 50 - Arabic version 84 - Arabic
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| 85 | # 146 - with dot above
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| 86 | Macintosh => {
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| 87 | 0 => 'en', 24 => 'lt', 48 => 'kk', 72 => 'ml', 129 => 'eu',
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| 88 | 1 => 'fr', 25 => 'pl', 49 => 'az', 73 => 'kn', 130 => 'ca',
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| 89 | 2 => 'de', 26 => 'hu', 50 => 'az', 74 => 'ta', 131 => 'la',
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| 90 | 3 => 'it', 27 => 'et', 51 => 'hy', 75 => 'te', 132 => 'qu',
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| 91 | 4 => 'nl', 28 => 'lv', 52 => 'ka', 76 => 'si', 133 => 'gn',
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| 92 | 5 => 'sv', 29 => 'smi', 53 => 'ro', 77 => 'my', 134 => 'ay',
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| 93 | 6 => 'es', 30 => 'fo', 54 => 'ky', 78 => 'km', 135 => 'tt',
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| 94 | 7 => 'da', 31 => 'fa', 55 => 'tg', 79 => 'lo', 136 => 'ug',
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| 95 | 8 => 'pt', 32 => 'ru', 56 => 'tk', 80 => 'vi', 137 => 'dz',
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| 96 | 9 => 'no', 33 => 'zh-CN', 57 => 'mn-MN', 81 => 'id', 138 => 'jv',
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| 97 | 10 => 'he', 34 => 'nl', 58 => 'mn-CN', 82 => 'tl', 139 => 'su',
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| 98 | 11 => 'ja', 35 => 'ga', 59 => 'ps', 83 => 'ms-MY', 140 => 'gl',
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| 99 | 12 => 'ar', 36 => 'sq', 60 => 'ku', 84 => 'ms-BN', 141 => 'af',
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| 100 | 13 => 'fi', 37 => 'ro', 61 => 'ks', 85 => 'am', 142 => 'br',
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| 101 | 14 => 'iu', 38 => 'cs', 62 => 'sd', 86 => 'ti', 144 => 'gd',
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| 102 | 15 => 'is', 39 => 'sk', 63 => 'bo', 87 => 'om', 145 => 'vg',
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| 103 | 16 => 'mt', 40 => 'sl', 64 => 'ne', 88 => 'so', 146 => 'ga',
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| 104 | 17 => 'tr', 41 => 'yi', 65 => 'sa', 89 => 'sw', 147 => 'rar',
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| 105 | 18 => 'hr', 42 => 'sr', 66 => 'mr', 90 => 'rw', 148 => 'el',
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| 106 | 19 => 'zh-TW', 43 => 'mk', 67 => 'bn', 91 => 'rn', 149 => 'kl',
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| 107 | 20 => 'ur', 44 => 'bg', 68 => 'as', 92 => 'ny', 150 => 'az',
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| 108 | 21 => 'hi', 45 => 'uk', 69 => 'gu', 93 => 'mg',
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| 109 | 22 => 'th', 46 => 'be', 70 => 'pa', 94 => 'eo',
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| 110 | 23 => 'ko', 47 => 'uz', 71 => 'or', 128 => 'cy',
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| 111 | },
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| 112 | # Windows language codes (http://msdn.microsoft.com/en-us/library/0h88fahh(VS.85).aspx)
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| 113 | # Notes: This isn't an exact science. The reference above gives language codes
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| 114 | # which are different from some ISO 639-1 numbers. Also, some Windows language
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| 115 | # codes don't appear to have ISO 639-1 equivalents.
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| 116 | # 0x0428 - fa by ref above
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| 117 | # 0x048c - no ISO equivalent
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| 118 | # 0x081a/0x83c - sr-SP
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| 119 | # 0x0c0a - modern?
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| 120 | # 0x2409 - Carribean country code not found in ISO 3166-1
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| 121 | Windows => {
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| 122 | 0x0401 => 'ar-SA', 0x0438 => 'fo', 0x0481 => 'mi', 0x1409 => 'en-NZ',
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| 123 | 0x0402 => 'bg', 0x0439 => 'hi', 0x0482 => 'oc', 0x140a => 'es-CR',
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| 124 | 0x0403 => 'ca', 0x043a => 'mt', 0x0483 => 'co', 0x140c => 'fr-LU',
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| 125 | 0x0404 => 'zh-TW', 0x043b => 'se-NO', 0x0484 => 'gsw', 0x141a => 'bs-BA',
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| 126 | 0x0405 => 'cs', 0x043c => 'gd', 0x0485 => 'sah', 0x143b => 'smj-SE',
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| 127 | 0x0406 => 'da', 0x043d => 'yi', 0x0486 => 'ny', 0x1801 => 'ar-MA',
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| 128 | 0x0407 => 'de-DE', 0x043e => 'ms-MY', 0x0487 => 'rw', 0x1809 => 'en-IE',
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| 129 | 0x0408 => 'el', 0x043f => 'kk', 0x048c => 'Dari', 0x180a => 'es-PA',
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| 130 | 0x0409 => 'en-US', 0x0440 => 'ky', 0x0801 => 'ar-IQ', 0x180c => 'fr-MC',
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| 131 | 0x040a => 'es-ES', 0x0441 => 'sw', 0x0804 => 'zh-CN', 0x181a => 'sr-BA',
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| 132 | 0x040b => 'fi', 0x0442 => 'tk', 0x0807 => 'de-CH', 0x183b => 'sma-NO',
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| 133 | 0x040c => 'fr-FR', 0x0443 => 'uz-UZ', 0x0809 => 'en-GB', 0x1c01 => 'ar-TN',
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| 134 | 0x040d => 'he', 0x0444 => 'tt', 0x080a => 'es-MX', 0x1c09 => 'en-ZA',
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| 135 | 0x040e => 'hu', 0x0445 => 'bn-IN', 0x080c => 'fr-BE', 0x1c0a => 'es-DO',
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| 136 | 0x040f => 'is', 0x0446 => 'pa', 0x0810 => 'it-CH', 0x1c1a => 'sr-BA',
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| 137 | 0x0410 => 'it-IT', 0x0447 => 'gu', 0x0813 => 'nl-BE', 0x1c3b => 'sma-SE',
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| 138 | 0x0411 => 'ja', 0x0448 => 'wo', 0x0814 => 'nn', 0x2001 => 'ar-OM',
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| 139 | 0x0412 => 'ko', 0x0449 => 'ta', 0x0816 => 'pt-PT', 0x2009 => 'en-JM',
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| 140 | 0x0413 => 'nl-NL', 0x044a => 'te', 0x0818 => 'ro-MO', 0x200a => 'es-VE',
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| 141 | 0x0414 => 'no-NO', 0x044b => 'kn', 0x0819 => 'ru-MO', 0x201a => 'bs-BA',
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| 142 | 0x0415 => 'pl', 0x044c => 'ml', 0x081a => 'sr-RS', 0x203b => 'sms',
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| 143 | 0x0416 => 'pt-BR', 0x044d => 'as', 0x081d => 'sv-FI', 0x2401 => 'ar-YE',
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| 144 | 0x0417 => 'rm', 0x044e => 'mr', 0x082c => 'az-AZ', 0x2409 => 'en-CB',
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| 145 | 0x0418 => 'ro', 0x044f => 'sa', 0x082e => 'dsb', 0x240a => 'es-CO',
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| 146 | 0x0419 => 'ru', 0x0450 => 'mn-MN', 0x083b => 'se-SE', 0x243b => 'smn',
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| 147 | 0x041a => 'hr', 0x0451 => 'bo', 0x083c => 'ga', 0x2801 => 'ar-SY',
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| 148 | 0x041b => 'sk', 0x0452 => 'cy', 0x083e => 'ms-BN', 0x2809 => 'en-BZ',
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| 149 | 0x041c => 'sq', 0x0453 => 'km', 0x0843 => 'uz-UZ', 0x280a => 'es-PE',
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| 150 | 0x041d => 'sv-SE', 0x0454 => 'lo', 0x0845 => 'bn-BD', 0x2c01 => 'ar-JO',
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| 151 | 0x041e => 'th', 0x0456 => 'gl', 0x0850 => 'mn-CN', 0x2c09 => 'en-TT',
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| 152 | 0x041f => 'tr', 0x0457 => 'kok', 0x085d => 'iu-CA', 0x2c0a => 'es-AR',
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| 153 | 0x0420 => 'ur', 0x045a => 'syr', 0x085f => 'tmh', 0x3001 => 'ar-LB',
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| 154 | 0x0421 => 'id', 0x045b => 'si', 0x086b => 'qu-EC', 0x3009 => 'en-ZW',
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| 155 | 0x0422 => 'uk', 0x045d => 'iu-CA', 0x0c01 => 'ar-EG', 0x300a => 'es-EC',
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| 156 | 0x0423 => 'be', 0x045e => 'am', 0x0c04 => 'zh-HK', 0x3401 => 'ar-KW',
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| 157 | 0x0424 => 'sl', 0x0461 => 'ne', 0x0c07 => 'de-AT', 0x3409 => 'en-PH',
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| 158 | 0x0425 => 'et', 0x0462 => 'fy', 0x0c09 => 'en-AU', 0x340a => 'es-CL',
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| 159 | 0x0426 => 'lv', 0x0463 => 'ps', 0x0c0a => 'es-ES', 0x3801 => 'ar-AE',
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| 160 | 0x0427 => 'lt', 0x0464 => 'fil', 0x0c0c => 'fr-CA', 0x380a => 'es-UY',
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| 161 | 0x0428 => 'tg', 0x0465 => 'dv', 0x0c1a => 'sr-RS', 0x3c01 => 'ar-BH',
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| 162 | 0x042a => 'vi', 0x0468 => 'ha', 0x0c3b => 'se-FI', 0x3c0a => 'es-PY',
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| 163 | 0x042b => 'hy', 0x046a => 'yo', 0x0c6b => 'qu-PE', 0x4001 => 'ar-QA',
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| 164 | 0x042c => 'az-AZ', 0x046b => 'qu-BO', 0x1001 => 'ar-LY', 0x4009 => 'en-IN',
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| 165 | 0x042d => 'eu', 0x046c => 'st', 0x1004 => 'zh-SG', 0x400a => 'es-BO',
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| 166 | 0x042e => 'hsb', 0x046d => 'ba', 0x1007 => 'de-LU', 0x4409 => 'en-MY',
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| 167 | 0x042f => 'mk', 0x046e => 'lb', 0x1009 => 'en-CA', 0x440a => 'es-SV',
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| 168 | 0x0430 => 'st', 0x046f => 'kl', 0x100a => 'es-GT', 0x4809 => 'en-SG',
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| 169 | 0x0431 => 'ts', 0x0470 => 'ig', 0x100c => 'fr-CH', 0x480a => 'es-HN',
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| 170 | 0x0432 => 'tn', 0x0478 => 'yi', 0x101a => 'hr-BA', 0x4c0a => 'es-NI',
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| 171 | 0x0434 => 'xh', 0x047a => 'arn', 0x103b => 'smj-NO',0x500a => 'es-PR',
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| 172 | 0x0435 => 'zu', 0x047c => 'moh', 0x1401 => 'ar-DZ', 0x540a => 'es-US',
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| 173 | 0x0436 => 'af', 0x047e => 'br', 0x1404 => 'zh-MO',
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| 174 | 0x0437 => 'ka', 0x0480 => 'ug', 0x1407 => 'de-LI',
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| 175 | },
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| 176 | Unicode => { },
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| 177 | ISO => { },
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| 178 | Custom => { },
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| 179 | );
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| 180 |
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| 181 | # eclectic table of tags for various format font files
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| 182 | %Image::ExifTool::Font::Main = (
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| 183 | GROUPS => { 2 => 'Document' },
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| 184 | NOTES => q{
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| 185 | This table contains a collection of tags found in font files of various
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| 186 | formats. ExifTool current recognizes OTF, TTF, TTC, DFONT, PFA, PFB, PFM,
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| 187 | AFM, ACFM and AMFM font files.
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| 188 | },
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| 189 | name => {
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| 190 | SubDirectory => { TagTable => 'Image::ExifTool::Font::Name' },
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| 191 | },
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| 192 | PFM => {
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| 193 | Name => 'PFMHeader',
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| 194 | SubDirectory => { TagTable => 'Image::ExifTool::Font::PFM' },
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| 195 | },
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| 196 | PSInfo => {
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| 197 | Name => 'PSFontInfo',
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| 198 | SubDirectory => { TagTable => 'Image::ExifTool::Font::PSInfo' },
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| 199 | },
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| 200 | AFM => {
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| 201 | Name => 'AFM',
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| 202 | SubDirectory => { TagTable => 'Image::ExifTool::Font::AFM' },
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| 203 | },
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| 204 | numfonts => 'NumFonts',
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| 205 | fontname => 'FontName',
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| 206 | postfont => {
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| 207 | Name => 'PostScriptFontName',
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| 208 | Description => 'PostScript Font Name',
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| 209 | },
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| 210 | );
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| 211 |
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| 212 | # TrueType name tags (ref 1/2)
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| 213 | %Image::ExifTool::Font::Name = (
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| 214 | GROUPS => { 2 => 'Document' },
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| 215 | NOTES => q{
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| 216 | The following tags are extracted from the TrueType font "name" table found
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| 217 | in OTF, TTF, TTC and DFONT files. These tags support localized languages by
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| 218 | adding a hyphen followed by a language code to the end of the tag name (ie.
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| 219 | "Copyright-fr" or "Licence-en-US"). Tags with no language code use the
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| 220 | default language of "en".
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| 221 | },
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| 222 | 0 => { Name => 'Copyright', Groups => { 2 => 'Author' } },
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| 223 | 1 => 'FontFamily',
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| 224 | 2 => 'FontSubfamily',
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| 225 | 3 => 'FontSubfamilyID',
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| 226 | 4 => 'FontName', # full name
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| 227 | 5 => 'NameTableVersion',
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| 228 | 6 => { Name => 'PostScriptFontName', Description => 'PostScript Font Name' },
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| 229 | 7 => 'Trademark',
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| 230 | 8 => 'Manufacturer',
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| 231 | 9 => 'Designer',
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| 232 | 10 => 'Description',
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| 233 | 11 => 'VendorURL',
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| 234 | 12 => 'DesignerURL',
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| 235 | 13 => 'License',
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| 236 | 14 => 'LicenseInfoURL',
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| 237 | 16 => 'PreferredFamily',
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| 238 | 17 => 'PreferredSubfamily',
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| 239 | 18 => 'CompatibleFontName',
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| 240 | 19 => 'SampleText',
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| 241 | 20 => {
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| 242 | Name => 'PostScriptFontName',
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| 243 | Description => 'PostScript Font Name',
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| 244 | },
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| 245 | 21 => 'WWSFamilyName',
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| 246 | 22 => 'WWSSubfamilyName',
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| 247 | );
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| 248 |
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| 249 | # PostScript Font Metric file header (ref 4)
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| 250 | %Image::ExifTool::Font::PFM = (
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| 251 | GROUPS => { 2 => 'Document' },
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| 252 | PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
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| 253 | NOTES => 'Tags extracted from the PFM file header.',
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| 254 | 0 => {
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| 255 | Name => 'PFMVersion',
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| 256 | Format => 'int16u',
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| 257 | PrintConv => 'sprintf("%x.%.2x",$val>>8,$val&0xff)',
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| 258 | },
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| 259 | 6 => { Name => 'Copyright', Format => 'string[60]', Groups => { 2 => 'Author' } },
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| 260 | 66 => { Name => 'FontType', Format => 'int16u' },
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| 261 | 68 => { Name => 'PointSize', Format => 'int16u' },
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| 262 | 70 => { Name => 'YResolution', Format => 'int16u' },
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| 263 | 72 => { Name => 'XResolution', Format => 'int16u' },
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| 264 | 74 => { Name => 'Ascent', Format => 'int16u' },
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| 265 | 76 => { Name => 'InternalLeading', Format => 'int16u' },
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| 266 | 78 => { Name => 'ExternalLeading', Format => 'int16u' },
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| 267 | 80 => { Name => 'Italic' },
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| 268 | 81 => { Name => 'Underline' },
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| 269 | 82 => { Name => 'Strikeout' },
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| 270 | 83 => { Name => 'Weight', Format => 'int16u' },
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| 271 | 85 => { Name => 'CharacterSet' },
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| 272 | 86 => { Name => 'PixWidth', Format => 'int16u' },
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| 273 | 88 => { Name => 'PixHeight', Format => 'int16u' },
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| 274 | 90 => { Name => 'PitchAndFamily' },
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| 275 | 91 => { Name => 'AvgWidth', Format => 'int16u' },
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| 276 | 93 => { Name => 'MaxWidth', Format => 'int16u' },
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| 277 | 95 => { Name => 'FirstChar' },
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| 278 | 96 => { Name => 'LastChar' },
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| 279 | 97 => { Name => 'DefaultChar' },
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| 280 | 98 => { Name => 'BreakChar' },
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| 281 | 99 => { Name => 'WidthBytes', Format => 'int16u' },
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| 282 | # 101 => { Name => 'DeviceTypeOffset', Format => 'int32u' },
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| 283 | # 105 => { Name => 'FontNameOffset', Format => 'int32u' },
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| 284 | # 109 => { Name => 'BitsPointer', Format => 'int32u' },
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| 285 | # 113 => { Name => 'BitsOffset', Format => 'int32u' },
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| 286 | );
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| 287 |
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| 288 | # PostScript FontInfo attributes (PFA, PFB) (ref PH)
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| 289 | %Image::ExifTool::Font::PSInfo = (
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| 290 | GROUPS => { 2 => 'Document' },
|
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| 291 | NOTES => 'Tags extracted from PostScript font files (PFA and PFB).',
|
|---|
| 292 | FullName => { },
|
|---|
| 293 | FamilyName => { Name => 'FontFamily' },
|
|---|
| 294 | Weight => { },
|
|---|
| 295 | ItalicAngle => { },
|
|---|
| 296 | isFixedPitch=> { },
|
|---|
| 297 | UnderlinePosition => { },
|
|---|
| 298 | UnderlineThickness => { },
|
|---|
| 299 | Copyright => { Groups => { 2 => 'Author' } },
|
|---|
| 300 | Notice => { Groups => { 2 => 'Author' } },
|
|---|
| 301 | version => { },
|
|---|
| 302 | FontName => { },
|
|---|
| 303 | FontType => { },
|
|---|
| 304 | FSType => { },
|
|---|
| 305 | );
|
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| 306 |
|
|---|
| 307 | # Adobe Font Metrics tags (AFM) (ref 6)
|
|---|
| 308 | %Image::ExifTool::Font::AFM = (
|
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| 309 | GROUPS => { 2 => 'Document' },
|
|---|
| 310 | NOTES => 'Tags extracted from Adobe Font Metrics files (AFM, ACFM and AMFM).',
|
|---|
| 311 | 'Creation Date' => { Name => 'CreateDate', Groups => { 2 => 'Time' } },
|
|---|
| 312 | FontName => { },
|
|---|
| 313 | FullName => { },
|
|---|
| 314 | FamilyName => { Name => 'FontFamily' },
|
|---|
| 315 | Weight => { },
|
|---|
| 316 | Version => { },
|
|---|
| 317 | Notice => { Groups => { 2 => 'Author' } },
|
|---|
| 318 | EncodingScheme => { },
|
|---|
| 319 | MappingScheme => { },
|
|---|
| 320 | EscChar => { },
|
|---|
| 321 | CharacterSet=> { },
|
|---|
| 322 | Characters => { },
|
|---|
| 323 | IsBaseFont => { },
|
|---|
| 324 | # VVector => { },
|
|---|
| 325 | IsFixedV => { },
|
|---|
| 326 | CapHeight => { },
|
|---|
| 327 | XHeight => { },
|
|---|
| 328 | Ascender => { },
|
|---|
| 329 | Descender => { },
|
|---|
| 330 | );
|
|---|
| 331 |
|
|---|
| 332 | #------------------------------------------------------------------------------
|
|---|
| 333 | # Read information from a TrueType font collection (TTC) (refs 2,3)
|
|---|
| 334 | # Inputs: 0) ExifTool ref, 1) dirInfo ref
|
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| 335 | # Returns: 1 on success, 0 if this wasn't a valid TrueType font collection
|
|---|
| 336 | sub ProcessTTC($$)
|
|---|
| 337 | {
|
|---|
| 338 | my ($exifTool, $dirInfo) = @_;
|
|---|
| 339 | my $raf = $$dirInfo{RAF};
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|---|
| 340 | my ($buff, $i);
|
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| 341 |
|
|---|
| 342 | return 0 unless $raf->Read($buff, 12) == 12;
|
|---|
| 343 | return 0 unless $buff =~ /^ttcf\0[\x01\x02]\0\0/;
|
|---|
| 344 | SetByteOrder('MM');
|
|---|
| 345 | my $num = Get32u(\$buff, 8);
|
|---|
| 346 | # might as well put a limit on the number of fonts we will parse (< 256)
|
|---|
| 347 | return 0 unless $num < 0x100 and $raf->Read($buff, $num * 4) == $num * 4;
|
|---|
| 348 | $exifTool->SetFileType('TTC');
|
|---|
| 349 | my $tagTablePtr = GetTagTable('Image::ExifTool::Font::Main');
|
|---|
| 350 | $exifTool->HandleTag($tagTablePtr, 'numfonts', $num);
|
|---|
| 351 | # loop through all fonts in the collection
|
|---|
| 352 | for ($i=0; $i<$num; ++$i) {
|
|---|
| 353 | my $n = $i + 1;
|
|---|
| 354 | $exifTool->VPrint(0, "Font $n:\n");
|
|---|
| 355 | $$exifTool{SET_GROUP1} = "+$n";
|
|---|
| 356 | my $offset = Get32u(\$buff, $i * 4);
|
|---|
| 357 | $raf->Seek($offset, 0) or last;
|
|---|
| 358 | ProcessOTF($exifTool, $dirInfo) or last;
|
|---|
| 359 | }
|
|---|
| 360 | delete $$exifTool{SET_GROUP1};
|
|---|
| 361 | return 1;
|
|---|
| 362 | }
|
|---|
| 363 |
|
|---|
| 364 | #------------------------------------------------------------------------------
|
|---|
| 365 | # Read information from a TrueType font file (OTF or TTF) (refs 1,2)
|
|---|
| 366 | # Inputs: 0) ExifTool ref, 1) dirInfo ref
|
|---|
| 367 | # Returns: 1 on success, 0 if this wasn't a valid TrueType font file
|
|---|
| 368 | sub ProcessOTF($$)
|
|---|
| 369 | {
|
|---|
| 370 | my ($exifTool, $dirInfo) = @_;
|
|---|
| 371 | my $raf = $$dirInfo{RAF};
|
|---|
| 372 | my ($tbl, $buff, $pos, $i);
|
|---|
| 373 | my $base = $$dirInfo{Base} || 0;
|
|---|
| 374 |
|
|---|
| 375 | return 0 unless $raf->Read($buff, 12) == 12;
|
|---|
| 376 | return 0 unless $buff =~ /^(\0\x01\0\0|OTTO|true|typ1)[\0\x01]/;
|
|---|
| 377 |
|
|---|
| 378 | $exifTool->SetFileType($1 eq 'OTTO' ? 'OTF' : 'TTF');
|
|---|
| 379 | SetByteOrder('MM');
|
|---|
| 380 | my $numTables = Get16u(\$buff, 4);
|
|---|
| 381 | return 0 unless $numTables > 0 and $numTables < 0x200;
|
|---|
| 382 | my $len = $numTables * 16;
|
|---|
| 383 | return 0 unless $raf->Read($tbl, $len) == $len;
|
|---|
| 384 |
|
|---|
| 385 | my $verbose = $exifTool->Options('Verbose');
|
|---|
| 386 | my $oldIndent = $$exifTool{INDENT};
|
|---|
| 387 | $$exifTool{INDENT} .= '| ';
|
|---|
| 388 | $exifTool->VerboseDir('TrueType', $numTables) if $verbose;
|
|---|
| 389 |
|
|---|
| 390 | for ($pos=0; $pos<$len; $pos+=16) {
|
|---|
| 391 | # look for 'name' table
|
|---|
| 392 | my $tag = substr($tbl, $pos, 4);
|
|---|
| 393 | next unless $tag eq 'name' or $verbose;
|
|---|
| 394 | my $offset = Get32u(\$tbl, $pos + 8);
|
|---|
| 395 | my $size = Get32u(\$tbl, $pos + 12);
|
|---|
| 396 | unless ($raf->Seek($offset+$base, 0) and $raf->Read($buff, $size) == $size) {
|
|---|
| 397 | $exifTool->Warn("Error reading '$tag' data");
|
|---|
| 398 | next;
|
|---|
| 399 | }
|
|---|
| 400 | if ($verbose) {
|
|---|
| 401 | $tag =~ s/([\0-\x1f\x80-\xff])/sprintf('\x%.2x',ord $1)/ge;
|
|---|
| 402 | my $str = sprintf("%s%d) Tag '%s' (offset 0x%.4x, %d bytes)\n",
|
|---|
| 403 | $$exifTool{INDENT}, $pos/16, $tag, $offset, $size);
|
|---|
| 404 | $exifTool->VPrint(0, $str);
|
|---|
| 405 | $exifTool->VerboseDump(\$buff, Addr => $offset) if $verbose > 2;
|
|---|
| 406 | next unless $tag eq 'name';
|
|---|
| 407 | }
|
|---|
| 408 | next unless $size >= 8;
|
|---|
| 409 | my $entries = Get16u(\$buff, 2);
|
|---|
| 410 | my $recEnd = 6 + $entries * 12;
|
|---|
| 411 | if ($recEnd > $size) {
|
|---|
| 412 | $exifTool->Warn('Truncated name record');
|
|---|
| 413 | last;
|
|---|
| 414 | }
|
|---|
| 415 | my $strStart = Get16u(\$buff, 4);
|
|---|
| 416 | if ($strStart < $recEnd or $strStart > $size) {
|
|---|
| 417 | $exifTool->Warn('Invalid string offset');
|
|---|
| 418 | last;
|
|---|
| 419 | }
|
|---|
| 420 | # parse language-tag record (in format 1 Naming table only) (ref 2)
|
|---|
| 421 | my %langTag;
|
|---|
| 422 | if (Get16u(\$buff, 0) == 1 and $recEnd + 2 <= $size) {
|
|---|
| 423 | my $langTags = Get16u(\$buff, $recEnd);
|
|---|
| 424 | if ($langTags and $recEnd + 2 + $langTags * 4 < $size) {
|
|---|
| 425 | for ($i=0; $i<$langTags; ++$i) {
|
|---|
| 426 | my $pt = $recEnd + 2 + $i * 4;
|
|---|
| 427 | my $langLen = Get16u(\$buff, $pt);
|
|---|
| 428 | # make sure the language string length is reasonable (UTF-16BE)
|
|---|
| 429 | last if $langLen == 0 or $langLen & 0x01 or $langLen > 40;
|
|---|
| 430 | my $langPt = Get16u(\$buff, $pt + 2) + $strStart;
|
|---|
| 431 | last if $langPt + $langLen > $size;
|
|---|
| 432 | my $lang = substr($buff, $langPt, $langLen);
|
|---|
| 433 | $lang = $exifTool->Decode($lang,'UCS2','MM','UTF8');
|
|---|
| 434 | $lang =~ tr/-_a-zA-Z0-9//dc; # remove naughty characters
|
|---|
| 435 | $langTag{$i + 0x8000} = $lang;
|
|---|
| 436 | }
|
|---|
| 437 | }
|
|---|
| 438 | }
|
|---|
| 439 | my $tagTablePtr = GetTagTable('Image::ExifTool::Font::Name');
|
|---|
| 440 | $$exifTool{INDENT} .= '| ';
|
|---|
| 441 | $exifTool->VerboseDir('Name', $entries) if $verbose;
|
|---|
| 442 | for ($i=0; $i<$entries; ++$i) {
|
|---|
| 443 | my $pt = 6 + $i * 12;
|
|---|
| 444 | my $platform = Get16u(\$buff, $pt);
|
|---|
| 445 | my $encoding = Get16u(\$buff, $pt + 2);
|
|---|
| 446 | my $langID = Get16u(\$buff, $pt + 4);
|
|---|
| 447 | my $nameID = Get16u(\$buff, $pt + 6);
|
|---|
| 448 | my $strLen = Get16u(\$buff, $pt + 8);
|
|---|
| 449 | my $strPt = Get16u(\$buff, $pt + 10) + $strStart;
|
|---|
| 450 | if ($strPt + $strLen <= $size) {
|
|---|
| 451 | my $val = substr($buff, $strPt, $strLen);
|
|---|
| 452 | my ($lang, $charset, $extra);
|
|---|
| 453 | my $sys = $ttPlatform{$platform};
|
|---|
| 454 | # translate from specified encoding
|
|---|
| 455 | if ($sys) {
|
|---|
| 456 | $lang = $ttLang{$sys}{$langID} || $langTag{$langID};
|
|---|
| 457 | $charset = $ttCharset{$sys}{$encoding};
|
|---|
| 458 | if (not $charset) {
|
|---|
| 459 | if (not defined $charset and not $$exifTool{FontWarn}) {
|
|---|
| 460 | $exifTool->Warn("Unknown $sys character set ($encoding)");
|
|---|
| 461 | $$exifTool{FontWarn} = 1;
|
|---|
| 462 | }
|
|---|
| 463 | } else {
|
|---|
| 464 | # translate to ExifTool character set
|
|---|
| 465 | $val = $exifTool->Decode($val, $charset);
|
|---|
| 466 | }
|
|---|
| 467 | } else {
|
|---|
| 468 | $exifTool->Warn("Unknown platform ($platform) for name $nameID");
|
|---|
| 469 | }
|
|---|
| 470 | # get the tagInfo for our specific language (use 'en' for default)
|
|---|
| 471 | my $tagInfo = $exifTool->GetTagInfo($tagTablePtr, $nameID);
|
|---|
| 472 | if ($tagInfo and $lang and $lang ne 'en') {
|
|---|
| 473 | my $langInfo = Image::ExifTool::GetLangInfo($tagInfo, $lang);
|
|---|
| 474 | $tagInfo = $langInfo if $langInfo;
|
|---|
| 475 | }
|
|---|
| 476 | if ($verbose) {
|
|---|
| 477 | $langID > 0x400 and $langID = sprintf('0x%x', $langID);
|
|---|
| 478 | $extra = ", Plat=$platform/" . ($sys || 'Unknown') . ', ' .
|
|---|
| 479 | "Enc=$encoding/" . ($charset || 'Unknown') . ', ' .
|
|---|
| 480 | "Lang=$langID/" . ($lang || 'Unknown');
|
|---|
| 481 | }
|
|---|
| 482 | $exifTool->HandleTag($tagTablePtr, $nameID, $val,
|
|---|
| 483 | TagInfo => $tagInfo,
|
|---|
| 484 | DataPt => \$buff,
|
|---|
| 485 | DataPos => $offset,
|
|---|
| 486 | Start => $strPt,
|
|---|
| 487 | Size => $strLen,
|
|---|
| 488 | Index => $i,
|
|---|
| 489 | Extra => $extra,
|
|---|
| 490 | );
|
|---|
| 491 | }
|
|---|
| 492 | }
|
|---|
| 493 | $$exifTool{INDENT} = $oldIndent . '| ';
|
|---|
| 494 | last unless $verbose;
|
|---|
| 495 | }
|
|---|
| 496 | $$exifTool{INDENT} = $oldIndent;
|
|---|
| 497 | return 1;
|
|---|
| 498 | }
|
|---|
| 499 |
|
|---|
| 500 | #------------------------------------------------------------------------------
|
|---|
| 501 | # Read information from an Adobe Font Metrics file (AFM, ACFM, AMFM) (ref 6)
|
|---|
| 502 | # Inputs: 0) ExifTool ref, 1) dirInfo ref
|
|---|
| 503 | # Returns: 1 on success, 0 if this wasn't a recognized AFM-type file
|
|---|
| 504 | sub ProcessAFM($$)
|
|---|
| 505 | {
|
|---|
| 506 | my ($exifTool, $dirInfo) = @_;
|
|---|
| 507 | my $raf = $$dirInfo{RAF};
|
|---|
| 508 | my ($buff, $comment);
|
|---|
| 509 |
|
|---|
| 510 | require Image::ExifTool::PostScript;
|
|---|
| 511 | local $/ = Image::ExifTool::PostScript::GetInputRecordSeparator($raf);
|
|---|
| 512 | $raf->ReadLine($buff);
|
|---|
| 513 | return 0 unless $buff =~ /^Start(Comp|Master)?FontMetrics\s+\d+/;
|
|---|
| 514 | my $ftyp = $1 ? ($1 eq 'Comp' ? 'ACFM' : 'AMFM') : 'AFM';
|
|---|
| 515 | $exifTool->SetFileType($ftyp, 'application/x-font-afm');
|
|---|
| 516 | my $tagTablePtr = GetTagTable('Image::ExifTool::Font::AFM');
|
|---|
| 517 |
|
|---|
| 518 | for (;;) {
|
|---|
| 519 | $raf->ReadLine($buff) or last;
|
|---|
| 520 | if (defined $comment and $buff !~ /^Comment\s/) {
|
|---|
| 521 | $exifTool->FoundTag('Comment', $comment);
|
|---|
| 522 | undef $comment;
|
|---|
| 523 | }
|
|---|
| 524 | $buff =~ /^(\w+)\s+(.*?)[\x0d\x0a]/ or next;
|
|---|
| 525 | my ($tag, $val) = ($1, $2);
|
|---|
| 526 | if ($tag eq 'Comment' and $val =~ /^(Creation Date):\s+(.*)/) {
|
|---|
| 527 | ($tag, $val) = ($1, $2);
|
|---|
| 528 | }
|
|---|
| 529 | $val =~ s/^\((.*)\)$/$1/; # (some values may be in brackets)
|
|---|
| 530 | if ($tag eq 'Comment') {
|
|---|
| 531 | # concatinate all comments into a single value
|
|---|
| 532 | $comment = defined($comment) ? "$comment\n$val" : $val;
|
|---|
| 533 | next;
|
|---|
| 534 | }
|
|---|
| 535 | unless ($exifTool->HandleTag($tagTablePtr, $tag, $val)) {
|
|---|
| 536 | # end parsing if we start any subsection
|
|---|
| 537 | last if $tag =~ /^Start/ and $tag ne 'StartDirection';
|
|---|
| 538 | }
|
|---|
| 539 | }
|
|---|
| 540 | return 1;
|
|---|
| 541 | }
|
|---|
| 542 |
|
|---|
| 543 | #------------------------------------------------------------------------------
|
|---|
| 544 | # Read information from various format font files
|
|---|
| 545 | # Inputs: 0) ExifTool ref, 1) dirInfo ref
|
|---|
| 546 | # Returns: 1 on success, 0 if this wasn't a recognized Font file
|
|---|
| 547 | sub ProcessFont($$)
|
|---|
| 548 | {
|
|---|
| 549 | my ($exifTool, $dirInfo) = @_;
|
|---|
| 550 | my $raf = $$dirInfo{RAF};
|
|---|
| 551 | my ($buff, $buf2, $rtnVal);
|
|---|
| 552 | return 0 unless $raf->Read($buff, 24) and $raf->Seek(0,0);
|
|---|
| 553 | if ($buff =~ /^(\0\x01\0\0|OTTO|true|typ1)[\0\x01]/) { # OTF, TTF
|
|---|
| 554 | $rtnVal = ProcessOTF($exifTool, $dirInfo);
|
|---|
| 555 | } elsif ($buff =~ /^ttcf\0[\x01\x02]\0\0/) { # TTC
|
|---|
| 556 | $rtnVal = ProcessTTC($exifTool, $dirInfo);
|
|---|
| 557 | } elsif ($buff =~ /^Start(Comp|Master)?FontMetrics\s+\d+/s) { # AFM
|
|---|
| 558 | $rtnVal = ProcessAFM($exifTool, $dirInfo);
|
|---|
| 559 | } elsif ($buff =~ /^(.{6})?%!(PS-(AdobeFont-|Bitstream )|FontType1-)/s) {# PFA, PFB
|
|---|
| 560 | $raf->Seek(6,0) and $exifTool->SetFileType('PFB') if $1;
|
|---|
| 561 | require Image::ExifTool::PostScript;
|
|---|
| 562 | $rtnVal = Image::ExifTool::PostScript::ProcessPS($exifTool, $dirInfo);
|
|---|
| 563 | } elsif ($buff =~ /^\0[\x01\x02]/ and $raf->Seek(0, 2) and # PFM
|
|---|
| 564 | # validate file size
|
|---|
| 565 | $raf->Tell() > 117 and $raf->Tell() == unpack('x2V',$buff) and
|
|---|
| 566 | # read PFM header
|
|---|
| 567 | $raf->Seek(0,0) and $raf->Read($buff,117) == 117 and
|
|---|
| 568 | # validate "DeviceType" string (must be "PostScript\0")
|
|---|
| 569 | SetByteOrder('II') and $raf->Seek(Get32u(\$buff, 101), 0) and
|
|---|
| 570 | # the DeviceType should be "PostScript\0", but FontForge
|
|---|
| 571 | # incorrectly writes "Postscript\0", so ignore case
|
|---|
| 572 | $raf->Read($buf2, 11) == 11 and lc($buf2) eq "postscript\0")
|
|---|
| 573 | {
|
|---|
| 574 | $exifTool->SetFileType('PFM');
|
|---|
| 575 | SetByteOrder('II');
|
|---|
| 576 | my $tagTablePtr = GetTagTable('Image::ExifTool::Font::Main');
|
|---|
| 577 | # process the PFM header
|
|---|
| 578 | $exifTool->HandleTag($tagTablePtr, 'PFM', $buff);
|
|---|
| 579 | # extract the font names
|
|---|
| 580 | my $nameOff = Get32u(\$buff, 105);
|
|---|
| 581 | if ($raf->Seek($nameOff, 0) and $raf->Read($buff, 256) and
|
|---|
| 582 | $buff =~ /^([\x20-\xff]+)\0([\x20-\xff]+)\0/)
|
|---|
| 583 | {
|
|---|
| 584 | $exifTool->HandleTag($tagTablePtr, 'fontname', $1);
|
|---|
| 585 | $exifTool->HandleTag($tagTablePtr, 'postfont', $2);
|
|---|
| 586 | }
|
|---|
| 587 | $rtnVal = 1;
|
|---|
| 588 | } else {
|
|---|
| 589 | $rtnVal = 0;
|
|---|
| 590 | }
|
|---|
| 591 | return $rtnVal;
|
|---|
| 592 | }
|
|---|
| 593 |
|
|---|
| 594 | 1; # end
|
|---|
| 595 |
|
|---|
| 596 | __END__
|
|---|
| 597 |
|
|---|
| 598 | =head1 NAME
|
|---|
| 599 |
|
|---|
| 600 | Image::ExifTool::Font - Read meta information from font files
|
|---|
| 601 |
|
|---|
| 602 | =head1 SYNOPSIS
|
|---|
| 603 |
|
|---|
| 604 | This module is used by Image::ExifTool
|
|---|
| 605 |
|
|---|
| 606 | =head1 DESCRIPTION
|
|---|
| 607 |
|
|---|
| 608 | This module contains the routines required by Image::ExifTool to read meta
|
|---|
| 609 | information from various format font files. Currently recognized font file
|
|---|
| 610 | types are OTF, TTF, TTC, DFONT, PFA, PFB, PFM, AFM, ACFM and AMFM.
|
|---|
| 611 |
|
|---|
| 612 | =head1 AUTHOR
|
|---|
| 613 |
|
|---|
| 614 | Copyright 2003-2011, Phil Harvey (phil at owl.phy.queensu.ca)
|
|---|
| 615 |
|
|---|
| 616 | This library is free software; you can redistribute it and/or modify it
|
|---|
| 617 | under the same terms as Perl itself.
|
|---|
| 618 |
|
|---|
| 619 | =head1 REFERENCES
|
|---|
| 620 |
|
|---|
| 621 | =over 4
|
|---|
| 622 |
|
|---|
| 623 | =item L<http://developer.apple.com/textfonts/TTRefMan/RM06/Chap6.html>
|
|---|
| 624 |
|
|---|
| 625 | =item L<http://www.microsoft.com/typography/otspec/otff.htm>
|
|---|
| 626 |
|
|---|
| 627 | =item L<http://partners.adobe.com/public/developer/opentype/index_font_file.html>
|
|---|
| 628 |
|
|---|
| 629 | =item L<http://partners.adobe.com/public/developer/en/font/5178.PFM.pdf>
|
|---|
| 630 |
|
|---|
| 631 | =item L<http://opensource.adobe.com/svn/opensource/flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/util/MimeMappings.java>
|
|---|
| 632 |
|
|---|
| 633 | =item L<http://www.adobe.com/devnet/font/pdfs/5004.AFM_Spec.pdf>
|
|---|
| 634 |
|
|---|
| 635 | =back
|
|---|
| 636 |
|
|---|
| 637 | =head1 SEE ALSO
|
|---|
| 638 |
|
|---|
| 639 | L<Image::ExifTool::TagNames/Font Tags>,
|
|---|
| 640 | L<Image::ExifTool(3pm)|Image::ExifTool>
|
|---|
| 641 |
|
|---|
| 642 | =cut
|
|---|
| 643 |
|
|---|
