third_party/harfbuzz-ng/src/hb-ucdn.cc

   1 /*
   2  * Copyright (C) 2012 Grigori Goronzy <greg@kinoho.net>
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #include "hb-private.hh"
  18
  19 #include "hb-unicode-private.hh"
  20
  21 #include "ucdn.h"
  22
  23 static const hb_script_t ucdn_script_translate[] =
  24 {
  25     HB_SCRIPT_COMMON,
  26     HB_SCRIPT_LATIN,
  27     HB_SCRIPT_GREEK,
  28     HB_SCRIPT_CYRILLIC,
  29     HB_SCRIPT_ARMENIAN,
  30     HB_SCRIPT_HEBREW,
  31     HB_SCRIPT_ARABIC,
  32     HB_SCRIPT_SYRIAC,
  33     HB_SCRIPT_THAANA,
  34     HB_SCRIPT_DEVANAGARI,
  35     HB_SCRIPT_BENGALI,
  36     HB_SCRIPT_GURMUKHI,
  37     HB_SCRIPT_GUJARATI,
  38     HB_SCRIPT_ORIYA,
  39     HB_SCRIPT_TAMIL,
  40     HB_SCRIPT_TELUGU,
  41     HB_SCRIPT_KANNADA,
  42     HB_SCRIPT_MALAYALAM,
  43     HB_SCRIPT_SINHALA,
  44     HB_SCRIPT_THAI,
  45     HB_SCRIPT_LAO,
  46     HB_SCRIPT_TIBETAN,
  47     HB_SCRIPT_MYANMAR,
  48     HB_SCRIPT_GEORGIAN,
  49     HB_SCRIPT_HANGUL,
  50     HB_SCRIPT_ETHIOPIC,
  51     HB_SCRIPT_CHEROKEE,
  52     HB_SCRIPT_CANADIAN_ABORIGINAL,
  53     HB_SCRIPT_OGHAM,
  54     HB_SCRIPT_RUNIC,
  55     HB_SCRIPT_KHMER,
  56     HB_SCRIPT_MONGOLIAN,
  57     HB_SCRIPT_HIRAGANA,
  58     HB_SCRIPT_KATAKANA,
  59     HB_SCRIPT_BOPOMOFO,
  60     HB_SCRIPT_HAN,
  61     HB_SCRIPT_YI,
  62     HB_SCRIPT_OLD_ITALIC,
  63     HB_SCRIPT_GOTHIC,
  64     HB_SCRIPT_DESERET,
  65     HB_SCRIPT_INHERITED,
  66     HB_SCRIPT_TAGALOG,
  67     HB_SCRIPT_HANUNOO,
  68     HB_SCRIPT_BUHID,
  69     HB_SCRIPT_TAGBANWA,
  70     HB_SCRIPT_LIMBU,
  71     HB_SCRIPT_TAI_LE,
  72     HB_SCRIPT_LINEAR_B,
  73     HB_SCRIPT_UGARITIC,
  74     HB_SCRIPT_SHAVIAN,
  75     HB_SCRIPT_OSMANYA,
  76     HB_SCRIPT_CYPRIOT,
  77     HB_SCRIPT_BRAILLE,
  78     HB_SCRIPT_BUGINESE,
  79     HB_SCRIPT_COPTIC,
  80     HB_SCRIPT_NEW_TAI_LUE,
  81     HB_SCRIPT_GLAGOLITIC,
  82     HB_SCRIPT_TIFINAGH,
  83     HB_SCRIPT_SYLOTI_NAGRI,
  84     HB_SCRIPT_OLD_PERSIAN,
  85     HB_SCRIPT_KHAROSHTHI,
  86     HB_SCRIPT_BALINESE,
  87     HB_SCRIPT_CUNEIFORM,
  88     HB_SCRIPT_PHOENICIAN,
  89     HB_SCRIPT_PHAGS_PA,
  90     HB_SCRIPT_NKO,
  91     HB_SCRIPT_SUNDANESE,
  92     HB_SCRIPT_LEPCHA,
  93     HB_SCRIPT_OL_CHIKI,
  94     HB_SCRIPT_VAI,
  95     HB_SCRIPT_SAURASHTRA,
  96     HB_SCRIPT_KAYAH_LI,
  97     HB_SCRIPT_REJANG,
  98     HB_SCRIPT_LYCIAN,
  99     HB_SCRIPT_CARIAN,
 100     HB_SCRIPT_LYDIAN,
 101     HB_SCRIPT_CHAM,
 102     HB_SCRIPT_TAI_THAM,
 103     HB_SCRIPT_TAI_VIET,
 104     HB_SCRIPT_AVESTAN,
 105     HB_SCRIPT_EGYPTIAN_HIEROGLYPHS,
 106     HB_SCRIPT_SAMARITAN,
 107     HB_SCRIPT_LISU,
 108     HB_SCRIPT_BAMUM,
 109     HB_SCRIPT_JAVANESE,
 110     HB_SCRIPT_MEETEI_MAYEK,
 111     HB_SCRIPT_IMPERIAL_ARAMAIC,
 112     HB_SCRIPT_OLD_SOUTH_ARABIAN,
 113     HB_SCRIPT_INSCRIPTIONAL_PARTHIAN,
 114     HB_SCRIPT_INSCRIPTIONAL_PAHLAVI,
 115     HB_SCRIPT_OLD_TURKIC,
 116     HB_SCRIPT_KAITHI,
 117     HB_SCRIPT_BATAK,
 118     HB_SCRIPT_BRAHMI,
 119     HB_SCRIPT_MANDAIC,
 120     HB_SCRIPT_CHAKMA,
 121     HB_SCRIPT_MEROITIC_CURSIVE,
 122     HB_SCRIPT_MEROITIC_HIEROGLYPHS,
 123     HB_SCRIPT_MIAO,
 124     HB_SCRIPT_SHARADA,
 125     HB_SCRIPT_SORA_SOMPENG,
 126     HB_SCRIPT_TAKRI,
 127     HB_SCRIPT_UNKNOWN,
 128 };
 129
 130 static hb_unicode_combining_class_t
 131 hb_ucdn_combining_class(hb_unicode_funcs_t *ufuncs, hb_codepoint_t unicode,
 132                         void *user_data HB_UNUSED)
 133 {
 134     return (hb_unicode_combining_class_t) ucdn_get_combining_class(unicode);
 135 }
 136
 137 static unsigned int
 138 hb_ucdn_eastasian_width(hb_unicode_funcs_t *ufuncs, hb_codepoint_t unicode,
 139                         void *user_data HB_UNUSED)
 140 {
 141     int w = ucdn_get_east_asian_width(unicode);
 142     return (w == UCDN_EAST_ASIAN_F || w == UCDN_EAST_ASIAN_W) ? 2 : 1;
 143 }
 144
 145 static hb_unicode_general_category_t
 146 hb_ucdn_general_category(hb_unicode_funcs_t *ufuncs, hb_codepoint_t unicode,
 147                          void *user_data HB_UNUSED)
 148 {
 149     return (hb_unicode_general_category_t)ucdn_get_general_category(unicode);
 150 }
 151
 152 static hb_codepoint_t
 153 hb_ucdn_mirroring(hb_unicode_funcs_t *ufuncs, hb_codepoint_t unicode,
 154                   void *user_data HB_UNUSED)
 155 {
 156     return ucdn_mirror(unicode);
 157 }
 158
 159 static hb_script_t
 160 hb_ucdn_script(hb_unicode_funcs_t *ufuncs, hb_codepoint_t unicode,
 161                void *user_data HB_UNUSED)
 162 {
 163     return ucdn_script_translate[ucdn_get_script(unicode)];
 164 }
 165
 166 static hb_bool_t
 167 hb_ucdn_compose(hb_unicode_funcs_t *ufuncs,
 168                 hb_codepoint_t a, hb_codepoint_t b, hb_codepoint_t *ab,
 169                 void *user_data HB_UNUSED)
 170 {
 171     return ucdn_compose(ab, a, b);
 172 }
 173
 174 static hb_bool_t
 175 hb_ucdn_decompose(hb_unicode_funcs_t *ufuncs,
 176                   hb_codepoint_t ab, hb_codepoint_t *a, hb_codepoint_t *b,
 177                   void *user_data HB_UNUSED)
 178 {
 179     return ucdn_decompose(ab, a, b);
 180 }
 181
 182 static unsigned int
 183 hb_ucdn_decompose_compatibility(hb_unicode_funcs_t *ufuncs,
 184                                 hb_codepoint_t u, hb_codepoint_t *decomposed,
 185                                 void *user_data HB_UNUSED)
 186 {
 187     return ucdn_compat_decompose(u, decomposed);
 188 }
 189
 190 extern "C" HB_INTERNAL
 191 hb_unicode_funcs_t *
 192 hb_ucdn_get_unicode_funcs (void)
 193 {
 194   static const hb_unicode_funcs_t _hb_ucdn_unicode_funcs = {
 195     HB_OBJECT_HEADER_STATIC,
 196
 197     NULL, /* parent */
 198     true, /* immutable */
 199     {
 200 #define HB_UNICODE_FUNC_IMPLEMENT(name) hb_ucdn_##name,
 201       HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS
 202 #undef HB_UNICODE_FUNC_IMPLEMENT
 203     }
 204   };
 205
 206   return const_cast<hb_unicode_funcs_t *> (&_hb_ucdn_unicode_funcs);
 207 }
 208