/* * 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_HH #define HB_UNICODE_HH #include "hb.hh" extern HB_INTERNAL const uint8_t _hb_modified_combining_class[256]; /* * hb_unicode_funcs_t */ #define HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS … /* Simple callbacks are those taking a hb_codepoint_t and returning a hb_codepoint_t */ #define HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS_SIMPLE … struct hb_unicode_funcs_t { … }; DECLARE_NULL_INSTANCE(…); /* * Modified combining marks */ /* Hebrew * * We permute the "fixed-position" classes 10-26 into the order * described in the SBL Hebrew manual: * * https://www.sbl-site.org/Fonts/SBLHebrewUserManual1.5x.pdf * * (as recommended by: * https://forum.fontlab.com/archive-old-microsoft-volt-group/vista-and-diacritic-ordering/msg22823/) * * More details here: * https://bugzilla.mozilla.org/show_bug.cgi?id=662055 */ #define HB_MODIFIED_COMBINING_CLASS_CCC10 … #define HB_MODIFIED_COMBINING_CLASS_CCC11 … #define HB_MODIFIED_COMBINING_CLASS_CCC12 … #define HB_MODIFIED_COMBINING_CLASS_CCC13 … #define HB_MODIFIED_COMBINING_CLASS_CCC14 … #define HB_MODIFIED_COMBINING_CLASS_CCC15 … #define HB_MODIFIED_COMBINING_CLASS_CCC16 … #define HB_MODIFIED_COMBINING_CLASS_CCC17 … #define HB_MODIFIED_COMBINING_CLASS_CCC18 … #define HB_MODIFIED_COMBINING_CLASS_CCC19 … #define HB_MODIFIED_COMBINING_CLASS_CCC20 … #define HB_MODIFIED_COMBINING_CLASS_CCC21 … #define HB_MODIFIED_COMBINING_CLASS_CCC22 … #define HB_MODIFIED_COMBINING_CLASS_CCC23 … #define HB_MODIFIED_COMBINING_CLASS_CCC24 … #define HB_MODIFIED_COMBINING_CLASS_CCC25 … #define HB_MODIFIED_COMBINING_CLASS_CCC26 … /* * Arabic * * Modify to move Shadda (ccc=33) before other marks. See: * https://unicode.org/faq/normalization.html#8 * https://unicode.org/faq/normalization.html#9 */ #define HB_MODIFIED_COMBINING_CLASS_CCC27 … #define HB_MODIFIED_COMBINING_CLASS_CCC28 … #define HB_MODIFIED_COMBINING_CLASS_CCC29 … #define HB_MODIFIED_COMBINING_CLASS_CCC30 … #define HB_MODIFIED_COMBINING_CLASS_CCC31 … #define HB_MODIFIED_COMBINING_CLASS_CCC32 … #define HB_MODIFIED_COMBINING_CLASS_CCC33 … #define HB_MODIFIED_COMBINING_CLASS_CCC34 … #define HB_MODIFIED_COMBINING_CLASS_CCC35 … /* Syriac */ #define HB_MODIFIED_COMBINING_CLASS_CCC36 … /* 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 (ccc=9). * Assign 4 and 5, which are otherwise unassigned. */ #define HB_MODIFIED_COMBINING_CLASS_CCC84 … #define HB_MODIFIED_COMBINING_CLASS_CCC91 … /* 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 … #define HB_MODIFIED_COMBINING_CLASS_CCC107 … /* Lao */ #define HB_MODIFIED_COMBINING_CLASS_CCC118 … #define HB_MODIFIED_COMBINING_CLASS_CCC122 … /* 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 … #define HB_MODIFIED_COMBINING_CLASS_CCC130 … #define HB_MODIFIED_COMBINING_CLASS_CCC132 … /* Misc */ #define HB_UNICODE_GENERAL_CATEGORY_IS_MARK(gen_cat) … #define HB_UNICODE_GENERAL_CATEGORY_IS_LETTER(gen_cat) … /* * Ranges, used for bsearch tables. */ struct hb_unicode_range_t { … }; /* * Emoji. */ HB_INTERNAL bool _hb_unicode_is_emoji_Extended_Pictographic (hb_codepoint_t cp); extern "C" HB_INTERNAL hb_unicode_funcs_t *hb_ucd_get_unicode_funcs (); #endif /* HB_UNICODE_HH */
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