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Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/hb-unicode-private.hh')
| -rw-r--r-- | src/3rdparty/harfbuzz-ng/src/hb-unicode-private.hh | 371 |
1 files changed, 0 insertions, 371 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-unicode-private.hh b/src/3rdparty/harfbuzz-ng/src/hb-unicode-private.hh deleted file mode 100644 index 82bb9a4ddc..0000000000 --- a/src/3rdparty/harfbuzz-ng/src/hb-unicode-private.hh +++ /dev/null @@ -1,371 +0,0 @@ -/* - * Copyright © 2009 Red Hat, Inc. - * Copyright © 2011 Codethink Limited - * Copyright © 2010,2011,2012 Google, Inc. - * - * This is part of HarfBuzz, a text shaping library. - * - * Permission is hereby granted, without written agreement and without - * license or royalty fees, to use, copy, modify, and distribute this - * software and its documentation for any purpose, provided that the - * above copyright notice and the following two paragraphs appear in - * all copies of this software. - * - * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR - * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES - * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN - * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH - * DAMAGE. - * - * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, - * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND - * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS - * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO - * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. - * - * Red Hat Author(s): Behdad Esfahbod - * Codethink Author(s): Ryan Lortie - * Google Author(s): Behdad Esfahbod - */ - -#ifndef HB_UNICODE_PRIVATE_HH -#define HB_UNICODE_PRIVATE_HH - -#include "hb-private.hh" -#include "hb-object-private.hh" - - -extern HB_INTERNAL const uint8_t _hb_modified_combining_class[256]; - -/* - * hb_unicode_funcs_t - */ - -#define HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS \ - HB_UNICODE_FUNC_IMPLEMENT (combining_class) \ - HB_UNICODE_FUNC_IMPLEMENT (eastasian_width) \ - HB_UNICODE_FUNC_IMPLEMENT (general_category) \ - HB_UNICODE_FUNC_IMPLEMENT (mirroring) \ - HB_UNICODE_FUNC_IMPLEMENT (script) \ - HB_UNICODE_FUNC_IMPLEMENT (compose) \ - HB_UNICODE_FUNC_IMPLEMENT (decompose) \ - HB_UNICODE_FUNC_IMPLEMENT (decompose_compatibility) \ - /* ^--- Add new callbacks here */ - -/* Simple callbacks are those taking a hb_codepoint_t and returning a hb_codepoint_t */ -#define HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS_SIMPLE \ - HB_UNICODE_FUNC_IMPLEMENT (hb_unicode_combining_class_t, combining_class) \ - HB_UNICODE_FUNC_IMPLEMENT (unsigned int, eastasian_width) \ - HB_UNICODE_FUNC_IMPLEMENT (hb_unicode_general_category_t, general_category) \ - HB_UNICODE_FUNC_IMPLEMENT (hb_codepoint_t, mirroring) \ - HB_UNICODE_FUNC_IMPLEMENT (hb_script_t, script) \ - /* ^--- Add new simple callbacks here */ - -struct hb_unicode_funcs_t { - hb_object_header_t header; - ASSERT_POD (); - - hb_unicode_funcs_t *parent; - - bool immutable; - -#define HB_UNICODE_FUNC_IMPLEMENT(return_type, name) \ - inline return_type name (hb_codepoint_t unicode) { return func.name (this, unicode, user_data.name); } -HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS_SIMPLE -#undef HB_UNICODE_FUNC_IMPLEMENT - - inline hb_bool_t compose (hb_codepoint_t a, hb_codepoint_t b, - hb_codepoint_t *ab) - { - *ab = 0; - if (unlikely (!a || !b)) return false; - return func.compose (this, a, b, ab, user_data.compose); - } - - inline hb_bool_t decompose (hb_codepoint_t ab, - hb_codepoint_t *a, hb_codepoint_t *b) - { - *a = ab; *b = 0; - return func.decompose (this, ab, a, b, user_data.decompose); - } - - inline unsigned int decompose_compatibility (hb_codepoint_t u, - hb_codepoint_t *decomposed) - { - unsigned int ret = func.decompose_compatibility (this, u, decomposed, user_data.decompose_compatibility); - if (ret == 1 && u == decomposed[0]) { - decomposed[0] = 0; - return 0; - } - decomposed[ret] = 0; - return ret; - } - - - inline unsigned int - modified_combining_class (hb_codepoint_t unicode) - { - /* XXX This hack belongs to the Myanmar shaper. */ - if (unlikely (unicode == 0x1037u)) unicode = 0x103Au; - - /* XXX This hack belongs to the USE shaper (for Tai Tham): - * Reorder SAKOT to ensure it comes after any tone marks. */ - if (unlikely (unicode == 0x1A60u)) return 254; - - /* XXX This hack belongs to the Tibetan shaper: - * Reorder PADMA to ensure it comes after any vowel marks. */ - if (unlikely (unicode == 0x0FC6u)) return 254; - /* Reorder TSA -PHRU to reorder before U+0F74 */ - if (unlikely (unicode == 0x0F39u)) return 127; - - return _hb_modified_combining_class[combining_class (unicode)]; - } - - static inline hb_bool_t - is_variation_selector (hb_codepoint_t unicode) - { - /* U+180B..180D MONGOLIAN FREE VARIATION SELECTORs are handled in the - * Arabic shaper. No need to match them here. */ - return unlikely (hb_in_ranges<hb_codepoint_t> (unicode, - 0xFE00u, 0xFE0Fu, /* VARIATION SELECTOR-1..16 */ - 0xE0100u, 0xE01EFu)); /* VARIATION SELECTOR-17..256 */ - } - - /* Default_Ignorable codepoints: - * - * Note: While U+115F, U+1160, U+3164 and U+FFA0 are Default_Ignorable, - * we do NOT want to hide them, as the way Uniscribe has implemented them - * is with regular spacing glyphs, and that's the way fonts are made to work. - * As such, we make exceptions for those four. - * Also ignoring U+1BCA0..1BCA3. https://github.com/harfbuzz/harfbuzz/issues/503 - * - * Unicode 7.0: - * $ grep '; Default_Ignorable_Code_Point ' DerivedCoreProperties.txt | sed 's/;.*#/#/' - * 00AD # Cf SOFT HYPHEN - * 034F # Mn COMBINING GRAPHEME JOINER - * 061C # Cf ARABIC LETTER MARK - * 115F..1160 # Lo [2] HANGUL CHOSEONG FILLER..HANGUL JUNGSEONG FILLER - * 17B4..17B5 # Mn [2] KHMER VOWEL INHERENT AQ..KHMER VOWEL INHERENT AA - * 180B..180D # Mn [3] MONGOLIAN FREE VARIATION SELECTOR ONE..MONGOLIAN FREE VARIATION SELECTOR THREE - * 180E # Cf MONGOLIAN VOWEL SEPARATOR - * 200B..200F # Cf [5] ZERO WIDTH SPACE..RIGHT-TO-LEFT MARK - * 202A..202E # Cf [5] LEFT-TO-RIGHT EMBEDDING..RIGHT-TO-LEFT OVERRIDE - * 2060..2064 # Cf [5] WORD JOINER..INVISIBLE PLUS - * 2065 # Cn <reserved-2065> - * 2066..206F # Cf [10] LEFT-TO-RIGHT ISOLATE..NOMINAL DIGIT SHAPES - * 3164 # Lo HANGUL FILLER - * FE00..FE0F # Mn [16] VARIATION SELECTOR-1..VARIATION SELECTOR-16 - * FEFF # Cf ZERO WIDTH NO-BREAK SPACE - * FFA0 # Lo HALFWIDTH HANGUL FILLER - * FFF0..FFF8 # Cn [9] <reserved-FFF0>..<reserved-FFF8> - * 1BCA0..1BCA3 # Cf [4] SHORTHAND FORMAT LETTER OVERLAP..SHORTHAND FORMAT UP STEP - * 1D173..1D17A # Cf [8] MUSICAL SYMBOL BEGIN BEAM..MUSICAL SYMBOL END PHRASE - * E0000 # Cn <reserved-E0000> - * E0001 # Cf LANGUAGE TAG - * E0002..E001F # Cn [30] <reserved-E0002>..<reserved-E001F> - * E0020..E007F # Cf [96] TAG SPACE..CANCEL TAG - * E0080..E00FF # Cn [128] <reserved-E0080>..<reserved-E00FF> - * E0100..E01EF # Mn [240] VARIATION SELECTOR-17..VARIATION SELECTOR-256 - * E01F0..E0FFF # Cn [3600] <reserved-E01F0>..<reserved-E0FFF> - */ - static inline hb_bool_t - is_default_ignorable (hb_codepoint_t ch) - { - hb_codepoint_t plane = ch >> 16; - if (likely (plane == 0)) - { - /* BMP */ - hb_codepoint_t page = ch >> 8; - switch (page) { - case 0x00: return unlikely (ch == 0x00ADu); - case 0x03: return unlikely (ch == 0x034Fu); - case 0x06: return unlikely (ch == 0x061Cu); - case 0x17: return hb_in_range<hb_codepoint_t> (ch, 0x17B4u, 0x17B5u); - case 0x18: return hb_in_range<hb_codepoint_t> (ch, 0x180Bu, 0x180Eu); - case 0x20: return hb_in_ranges<hb_codepoint_t> (ch, 0x200Bu, 0x200Fu, - 0x202Au, 0x202Eu, - 0x2060u, 0x206Fu); - case 0xFE: return hb_in_range<hb_codepoint_t> (ch, 0xFE00u, 0xFE0Fu) || ch == 0xFEFFu; - case 0xFF: return hb_in_range<hb_codepoint_t> (ch, 0xFFF0u, 0xFFF8u); - default: return false; - } - } - else - { - /* Other planes */ - switch (plane) { - case 0x01: return hb_in_range<hb_codepoint_t> (ch, 0x1D173u, 0x1D17Au); - case 0x0E: return hb_in_range<hb_codepoint_t> (ch, 0xE0000u, 0xE0FFFu); - default: return false; - } - } - } - - /* Space estimates based on: - * http://www.unicode.org/charts/PDF/U2000.pdf - * https://www.microsoft.com/typography/developers/fdsspec/spaces.aspx - */ - enum space_t { - NOT_SPACE = 0, - SPACE_EM = 1, - SPACE_EM_2 = 2, - SPACE_EM_3 = 3, - SPACE_EM_4 = 4, - SPACE_EM_5 = 5, - SPACE_EM_6 = 6, - SPACE_EM_16 = 16, - SPACE_4_EM_18, /* 4/18th of an EM! */ - SPACE, - SPACE_FIGURE, - SPACE_PUNCTUATION, - SPACE_NARROW, - }; - static inline space_t - space_fallback_type (hb_codepoint_t u) - { - switch (u) - { - /* All GC=Zs chars that can use a fallback. */ - default: return NOT_SPACE; /* U+1680 OGHAM SPACE MARK */ - case 0x0020u: return SPACE; /* U+0020 SPACE */ - case 0x00A0u: return SPACE; /* U+00A0 NO-BREAK SPACE */ - case 0x2000u: return SPACE_EM_2; /* U+2000 EN QUAD */ - case 0x2001u: return SPACE_EM; /* U+2001 EM QUAD */ - case 0x2002u: return SPACE_EM_2; /* U+2002 EN SPACE */ - case 0x2003u: return SPACE_EM; /* U+2003 EM SPACE */ - case 0x2004u: return SPACE_EM_3; /* U+2004 THREE-PER-EM SPACE */ - case 0x2005u: return SPACE_EM_4; /* U+2005 FOUR-PER-EM SPACE */ - case 0x2006u: return SPACE_EM_6; /* U+2006 SIX-PER-EM SPACE */ - case 0x2007u: return SPACE_FIGURE; /* U+2007 FIGURE SPACE */ - case 0x2008u: return SPACE_PUNCTUATION; /* U+2008 PUNCTUATION SPACE */ - case 0x2009u: return SPACE_EM_5; /* U+2009 THIN SPACE */ - case 0x200Au: return SPACE_EM_16; /* U+200A HAIR SPACE */ - case 0x202Fu: return SPACE_NARROW; /* U+202F NARROW NO-BREAK SPACE */ - case 0x205Fu: return SPACE_4_EM_18; /* U+205F MEDIUM MATHEMATICAL SPACE */ - case 0x3000u: return SPACE_EM; /* U+3000 IDEOGRAPHIC SPACE */ - } - } - - struct { -#define HB_UNICODE_FUNC_IMPLEMENT(name) hb_unicode_##name##_func_t name; - HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS -#undef HB_UNICODE_FUNC_IMPLEMENT - } func; - - struct { -#define HB_UNICODE_FUNC_IMPLEMENT(name) void *name; - HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS -#undef HB_UNICODE_FUNC_IMPLEMENT - } user_data; - - struct { -#define HB_UNICODE_FUNC_IMPLEMENT(name) hb_destroy_func_t name; - HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS -#undef HB_UNICODE_FUNC_IMPLEMENT - } destroy; -}; - - -extern HB_INTERNAL const hb_unicode_funcs_t _hb_unicode_funcs_nil; - - -/* Modified combining marks */ - -/* Hebrew - * - * We permute the "fixed-position" classes 10-26 into the order - * described in the SBL Hebrew manual: - * - * http://www.sbl-site.org/Fonts/SBLHebrewUserManual1.5x.pdf - * - * (as recommended by: - * http://forum.fontlab.com/archive-old-microsoft-volt-group/vista-and-diacritic-ordering-t6751.0.html) - * - * More details here: - * https://bugzilla.mozilla.org/show_bug.cgi?id=662055 - */ -#define HB_MODIFIED_COMBINING_CLASS_CCC10 22 /* sheva */ -#define HB_MODIFIED_COMBINING_CLASS_CCC11 15 /* hataf segol */ -#define HB_MODIFIED_COMBINING_CLASS_CCC12 16 /* hataf patah */ -#define HB_MODIFIED_COMBINING_CLASS_CCC13 17 /* hataf qamats */ -#define HB_MODIFIED_COMBINING_CLASS_CCC14 23 /* hiriq */ -#define HB_MODIFIED_COMBINING_CLASS_CCC15 18 /* tsere */ -#define HB_MODIFIED_COMBINING_CLASS_CCC16 19 /* segol */ -#define HB_MODIFIED_COMBINING_CLASS_CCC17 20 /* patah */ -#define HB_MODIFIED_COMBINING_CLASS_CCC18 21 /* qamats */ -#define HB_MODIFIED_COMBINING_CLASS_CCC19 14 /* holam */ -#define HB_MODIFIED_COMBINING_CLASS_CCC20 24 /* qubuts */ -#define HB_MODIFIED_COMBINING_CLASS_CCC21 12 /* dagesh */ -#define HB_MODIFIED_COMBINING_CLASS_CCC22 25 /* meteg */ -#define HB_MODIFIED_COMBINING_CLASS_CCC23 13 /* rafe */ -#define HB_MODIFIED_COMBINING_CLASS_CCC24 10 /* shin dot */ -#define HB_MODIFIED_COMBINING_CLASS_CCC25 11 /* sin dot */ -#define HB_MODIFIED_COMBINING_CLASS_CCC26 26 /* point varika */ - -/* - * Arabic - * - * Modify to move Shadda (ccc=33) before other marks. See: - * http://unicode.org/faq/normalization.html#8 - * http://unicode.org/faq/normalization.html#9 - */ -#define HB_MODIFIED_COMBINING_CLASS_CCC27 28 /* fathatan */ -#define HB_MODIFIED_COMBINING_CLASS_CCC28 29 /* dammatan */ -#define HB_MODIFIED_COMBINING_CLASS_CCC29 30 /* kasratan */ -#define HB_MODIFIED_COMBINING_CLASS_CCC30 31 /* fatha */ -#define HB_MODIFIED_COMBINING_CLASS_CCC31 32 /* damma */ -#define HB_MODIFIED_COMBINING_CLASS_CCC32 33 /* kasra */ -#define HB_MODIFIED_COMBINING_CLASS_CCC33 27 /* shadda */ -#define HB_MODIFIED_COMBINING_CLASS_CCC34 34 /* sukun */ -#define HB_MODIFIED_COMBINING_CLASS_CCC35 35 /* superscript alef */ - -/* Syriac */ -#define HB_MODIFIED_COMBINING_CLASS_CCC36 36 /* superscript alaph */ - -/* Telugu - * - * Modify Telugu length marks (ccc=84, ccc=91). - * These are the only matras in the main Indic scripts range that have - * a non-zero ccc. That makes them reorder with the Halant that is - * ccc=9. Just zero them, we don't need them in our Indic shaper. - */ -#define HB_MODIFIED_COMBINING_CLASS_CCC84 0 /* length mark */ -#define HB_MODIFIED_COMBINING_CLASS_CCC91 0 /* ai length mark */ - -/* Thai - * - * Modify U+0E38 and U+0E39 (ccc=103) to be reordered before U+0E3A (ccc=9). - * Assign 3, which is unassigned otherwise. - * Uniscribe does this reordering too. - */ -#define HB_MODIFIED_COMBINING_CLASS_CCC103 3 /* sara u / sara uu */ -#define HB_MODIFIED_COMBINING_CLASS_CCC107 107 /* mai * */ - -/* Lao */ -#define HB_MODIFIED_COMBINING_CLASS_CCC118 118 /* sign u / sign uu */ -#define HB_MODIFIED_COMBINING_CLASS_CCC122 122 /* mai * */ - -/* Tibetan - * - * In case of multiple vowel-signs, use u first (but after achung) - * this allows Dzongkha multi-vowel shortcuts to render correctly - */ -#define HB_MODIFIED_COMBINING_CLASS_CCC129 129 /* sign aa */ -#define HB_MODIFIED_COMBINING_CLASS_CCC130 132 /* sign i */ -#define HB_MODIFIED_COMBINING_CLASS_CCC132 131 /* sign u */ - -/* Misc */ - -#define HB_UNICODE_GENERAL_CATEGORY_IS_MARK(gen_cat) \ - (FLAG_UNSAFE (gen_cat) & \ - (FLAG (HB_UNICODE_GENERAL_CATEGORY_SPACING_MARK) | \ - FLAG (HB_UNICODE_GENERAL_CATEGORY_ENCLOSING_MARK) | \ - FLAG (HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK))) - -#define HB_UNICODE_GENERAL_CATEGORY_IS_NON_ENCLOSING_MARK_OR_MODIFIER_SYMBOL(gen_cat) \ - (FLAG_UNSAFE (gen_cat) & \ - (FLAG (HB_UNICODE_GENERAL_CATEGORY_SPACING_MARK) | \ - FLAG (HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK) | \ - FLAG (HB_UNICODE_GENERAL_CATEGORY_MODIFIER_SYMBOL))) - -#endif /* HB_UNICODE_PRIVATE_HH */ |