[glib] Add two-way script conversion functions
Also optimizes the common-direction script lookup to be an array lookup.
This commit is contained in:
Behdad Esfahbod
parent
5c8c1b680c
commit
0809aadd4b
270
src/hb-glib.cc
270
src/hb-glib.cc
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@ -34,6 +34,145 @@
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HB_BEGIN_DECLS
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static const hb_script_t
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glib_script_to_script[] =
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{
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HB_SCRIPT_COMMON,
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HB_SCRIPT_INHERITED,
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HB_SCRIPT_ARABIC,
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HB_SCRIPT_ARMENIAN,
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HB_SCRIPT_BENGALI,
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HB_SCRIPT_BOPOMOFO,
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HB_SCRIPT_CHEROKEE,
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HB_SCRIPT_COPTIC,
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HB_SCRIPT_CYRILLIC,
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HB_SCRIPT_DESERET,
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HB_SCRIPT_DEVANAGARI,
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HB_SCRIPT_ETHIOPIC,
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HB_SCRIPT_GEORGIAN,
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HB_SCRIPT_GOTHIC,
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HB_SCRIPT_GREEK,
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HB_SCRIPT_GUJARATI,
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HB_SCRIPT_GURMUKHI,
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HB_SCRIPT_HAN,
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HB_SCRIPT_HANGUL,
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HB_SCRIPT_HEBREW,
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HB_SCRIPT_HIRAGANA,
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HB_SCRIPT_KANNADA,
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HB_SCRIPT_KATAKANA,
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HB_SCRIPT_KHMER,
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HB_SCRIPT_LAO,
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HB_SCRIPT_LATIN,
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HB_SCRIPT_MALAYALAM,
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HB_SCRIPT_MONGOLIAN,
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HB_SCRIPT_MYANMAR,
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HB_SCRIPT_OGHAM,
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HB_SCRIPT_OLD_ITALIC,
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HB_SCRIPT_ORIYA,
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HB_SCRIPT_RUNIC,
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HB_SCRIPT_SINHALA,
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HB_SCRIPT_SYRIAC,
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HB_SCRIPT_TAMIL,
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HB_SCRIPT_TELUGU,
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HB_SCRIPT_THAANA,
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HB_SCRIPT_THAI,
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HB_SCRIPT_TIBETAN,
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HB_SCRIPT_CANADIAN_ABORIGINAL,
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HB_SCRIPT_YI,
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HB_SCRIPT_TAGALOG,
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HB_SCRIPT_HANUNOO,
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HB_SCRIPT_BUHID,
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HB_SCRIPT_TAGBANWA,
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/* Unicode-4.0 additions */
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HB_SCRIPT_BRAILLE,
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HB_SCRIPT_CYPRIOT,
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HB_SCRIPT_LIMBU,
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HB_SCRIPT_OSMANYA,
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HB_SCRIPT_SHAVIAN,
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HB_SCRIPT_LINEAR_B,
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HB_SCRIPT_TAI_LE,
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HB_SCRIPT_UGARITIC,
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/* Unicode-4.1 additions */
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HB_SCRIPT_NEW_TAI_LUE,
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HB_SCRIPT_BUGINESE,
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HB_SCRIPT_GLAGOLITIC,
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HB_SCRIPT_TIFINAGH,
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HB_SCRIPT_SYLOTI_NAGRI,
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HB_SCRIPT_OLD_PERSIAN,
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HB_SCRIPT_KHAROSHTHI,
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/* Unicode-5.0 additions */
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HB_SCRIPT_UNKNOWN,
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HB_SCRIPT_BALINESE,
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HB_SCRIPT_CUNEIFORM,
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HB_SCRIPT_PHOENICIAN,
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HB_SCRIPT_PHAGS_PA,
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HB_SCRIPT_NKO,
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/* Unicode-5.1 additions */
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HB_SCRIPT_KAYAH_LI,
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HB_SCRIPT_LEPCHA,
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HB_SCRIPT_REJANG,
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HB_SCRIPT_SUNDANESE,
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HB_SCRIPT_SAURASHTRA,
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HB_SCRIPT_CHAM,
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HB_SCRIPT_OL_CHIKI,
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HB_SCRIPT_VAI,
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HB_SCRIPT_CARIAN,
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HB_SCRIPT_LYCIAN,
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HB_SCRIPT_LYDIAN,
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/* Unicode-5.2 additions */
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HB_SCRIPT_AVESTAN,
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HB_SCRIPT_BAMUM,
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HB_SCRIPT_EGYPTIAN_HIEROGLYPHS,
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HB_SCRIPT_IMPERIAL_ARAMAIC,
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HB_SCRIPT_INSCRIPTIONAL_PAHLAVI,
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HB_SCRIPT_INSCRIPTIONAL_PARTHIAN,
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HB_SCRIPT_JAVANESE,
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HB_SCRIPT_KAITHI,
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HB_SCRIPT_TAI_THAM,
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HB_SCRIPT_LISU,
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HB_SCRIPT_MEETEI_MAYEK,
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HB_SCRIPT_OLD_SOUTH_ARABIAN,
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HB_SCRIPT_OLD_TURKIC,
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HB_SCRIPT_SAMARITAN,
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HB_SCRIPT_TAI_VIET,
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/* Unicode-6.0 additions */
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HB_SCRIPT_BATAK,
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HB_SCRIPT_BRAHMI,
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HB_SCRIPT_MANDAIC
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};
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hb_script_t
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hb_glib_script_to_script (GUnicodeScript script)
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{
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if (likely ((unsigned int) script < ARRAY_LENGTH (glib_script_to_script)))
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return glib_script_to_script[script];
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if (unlikely (script == G_UNICODE_SCRIPT_INVALID_CODE))
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return HB_SCRIPT_INVALID;
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return HB_SCRIPT_UNKNOWN;
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}
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GUnicodeScript
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hb_glib_script_from_script (hb_script_t script)
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{
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unsigned int count = ARRAY_LENGTH (glib_script_to_script);
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for (unsigned int i = 0; i < count; i++)
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if (glib_script_to_script[i] == script)
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return (GUnicodeScript) i;
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if (unlikely (script == HB_SCRIPT_INVALID))
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return G_UNICODE_SCRIPT_INVALID_CODE;
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return G_UNICODE_SCRIPT_UNKNOWN;
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}
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static unsigned int
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hb_glib_get_combining_class (hb_unicode_funcs_t *ufuncs,
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@ -76,136 +215,7 @@ hb_glib_get_script (hb_unicode_funcs_t *ufuncs,
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hb_codepoint_t unicode,
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void *user_data)
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{
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GUnicodeScript script = g_unichar_get_script (unicode);
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switch (script)
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{
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#define MATCH_SCRIPT(C) case G_UNICODE_SCRIPT_##C: return HB_SCRIPT_##C
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#define MATCH_SCRIPT2(C1, C2) case G_UNICODE_SCRIPT_##C1: return HB_SCRIPT_##C2
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MATCH_SCRIPT2(INVALID_CODE, INVALID);
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MATCH_SCRIPT (COMMON);
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MATCH_SCRIPT (INHERITED);
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MATCH_SCRIPT (ARABIC);
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MATCH_SCRIPT (ARMENIAN);
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MATCH_SCRIPT (BENGALI);
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MATCH_SCRIPT (BOPOMOFO);
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MATCH_SCRIPT (CHEROKEE);
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MATCH_SCRIPT (COPTIC);
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MATCH_SCRIPT (CYRILLIC);
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MATCH_SCRIPT (DESERET);
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MATCH_SCRIPT (DEVANAGARI);
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MATCH_SCRIPT (ETHIOPIC);
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MATCH_SCRIPT (GEORGIAN);
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MATCH_SCRIPT (GOTHIC);
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MATCH_SCRIPT (GREEK);
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MATCH_SCRIPT (GUJARATI);
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MATCH_SCRIPT (GURMUKHI);
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MATCH_SCRIPT (HAN);
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MATCH_SCRIPT (HANGUL);
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MATCH_SCRIPT (HEBREW);
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MATCH_SCRIPT (HIRAGANA);
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MATCH_SCRIPT (KANNADA);
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MATCH_SCRIPT (KATAKANA);
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MATCH_SCRIPT (KHMER);
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MATCH_SCRIPT (LAO);
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MATCH_SCRIPT (LATIN);
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MATCH_SCRIPT (MALAYALAM);
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MATCH_SCRIPT (MONGOLIAN);
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MATCH_SCRIPT (MYANMAR);
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MATCH_SCRIPT (OGHAM);
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MATCH_SCRIPT (OLD_ITALIC);
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MATCH_SCRIPT (ORIYA);
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MATCH_SCRIPT (RUNIC);
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MATCH_SCRIPT (SINHALA);
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MATCH_SCRIPT (SYRIAC);
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MATCH_SCRIPT (TAMIL);
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MATCH_SCRIPT (TELUGU);
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MATCH_SCRIPT (THAANA);
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MATCH_SCRIPT (THAI);
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MATCH_SCRIPT (TIBETAN);
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MATCH_SCRIPT (CANADIAN_ABORIGINAL);
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MATCH_SCRIPT (YI);
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MATCH_SCRIPT (TAGALOG);
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MATCH_SCRIPT (HANUNOO);
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MATCH_SCRIPT (BUHID);
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MATCH_SCRIPT (TAGBANWA);
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/* Unicode-4.0 additions */
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MATCH_SCRIPT (BRAILLE);
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MATCH_SCRIPT (CYPRIOT);
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MATCH_SCRIPT (LIMBU);
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MATCH_SCRIPT (OSMANYA);
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MATCH_SCRIPT (SHAVIAN);
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MATCH_SCRIPT (LINEAR_B);
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MATCH_SCRIPT (TAI_LE);
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MATCH_SCRIPT (UGARITIC);
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/* Unicode-4.1 additions */
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MATCH_SCRIPT (NEW_TAI_LUE);
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MATCH_SCRIPT (BUGINESE);
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MATCH_SCRIPT (GLAGOLITIC);
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MATCH_SCRIPT (TIFINAGH);
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MATCH_SCRIPT (SYLOTI_NAGRI);
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MATCH_SCRIPT (OLD_PERSIAN);
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MATCH_SCRIPT (KHAROSHTHI);
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/* Unicode-5.0 additions */
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MATCH_SCRIPT (UNKNOWN);
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MATCH_SCRIPT (BALINESE);
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MATCH_SCRIPT (CUNEIFORM);
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MATCH_SCRIPT (PHOENICIAN);
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MATCH_SCRIPT (PHAGS_PA);
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MATCH_SCRIPT (NKO);
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/* Unicode-5.1 additions */
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MATCH_SCRIPT (KAYAH_LI);
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MATCH_SCRIPT (LEPCHA);
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MATCH_SCRIPT (REJANG);
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MATCH_SCRIPT (SUNDANESE);
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MATCH_SCRIPT (SAURASHTRA);
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MATCH_SCRIPT (CHAM);
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MATCH_SCRIPT (OL_CHIKI);
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MATCH_SCRIPT (VAI);
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MATCH_SCRIPT (CARIAN);
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MATCH_SCRIPT (LYCIAN);
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MATCH_SCRIPT (LYDIAN);
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/* Unicode-5.2 additions */
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#if GLIB_CHECK_VERSION(2,26,0)
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MATCH_SCRIPT (AVESTAN);
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MATCH_SCRIPT (BAMUM);
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MATCH_SCRIPT (EGYPTIAN_HIEROGLYPHS);
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MATCH_SCRIPT (IMPERIAL_ARAMAIC);
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MATCH_SCRIPT (INSCRIPTIONAL_PAHLAVI);
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MATCH_SCRIPT (INSCRIPTIONAL_PARTHIAN);
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MATCH_SCRIPT (JAVANESE);
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MATCH_SCRIPT (KAITHI);
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MATCH_SCRIPT (TAI_THAM);
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MATCH_SCRIPT (LISU);
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MATCH_SCRIPT (MEETEI_MAYEK);
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MATCH_SCRIPT (OLD_SOUTH_ARABIAN);
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#if GLIB_CHECK_VERSION(2,27,92)
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MATCH_SCRIPT (OLD_TURKIC);
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#else
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MATCH_SCRIPT2(OLD_TURKISH, OLD_TURKIC);
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#endif
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MATCH_SCRIPT (SAMARITAN);
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MATCH_SCRIPT (TAI_VIET);
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#endif
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/* Unicode-6.0 additions */
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#if GLIB_CHECK_VERSION(2,28,0)
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MATCH_SCRIPT (BATAK);
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MATCH_SCRIPT (BRAHMI);
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MATCH_SCRIPT (MANDAIC);
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#endif
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#undef MATCH_SCRIPT
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#undef MATCH_SCRIPT2
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}
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return HB_SCRIPT_UNKNOWN;
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return hb_glib_script_to_script (g_unichar_get_script (unicode));
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}
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static hb_unicode_funcs_t glib_ufuncs = {
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@ -28,10 +28,18 @@
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#define HB_GLIB_H
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#include "hb.h"
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#include <glib.h>
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HB_BEGIN_DECLS
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hb_script_t
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hb_glib_script_to_script (GUnicodeScript script);
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GUnicodeScript
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hb_glib_script_from_script (hb_script_t script);
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hb_unicode_funcs_t *
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hb_glib_get_unicode_funcs (void);
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