diff options
Diffstat (limited to 'third_party/harfbuzz-ng/src/hb-icu.c')
| -rw-r--r-- | third_party/harfbuzz-ng/src/hb-icu.c | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/third_party/harfbuzz-ng/src/hb-icu.c b/third_party/harfbuzz-ng/src/hb-icu.c new file mode 100644 index 0000000..601ef61 --- /dev/null +++ b/third_party/harfbuzz-ng/src/hb-icu.c @@ -0,0 +1,260 @@ +/* + * Copyright (C) 2009 Red Hat, Inc. + * Copyright (C) 2009 Keith Stribley + * + * 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 + */ + +#include "hb-private.h" + +#include "hb-icu.h" + +#include "hb-unicode-private.h" + +#include <unicode/uversion.h> +#include <unicode/uchar.h> +#include <unicode/uscript.h> + +HB_BEGIN_DECLS + + +static hb_codepoint_t hb_icu_get_mirroring (hb_codepoint_t unicode) { return u_charMirror(unicode); } +static unsigned int hb_icu_get_combining_class (hb_codepoint_t unicode) { return u_getCombiningClass (unicode); } + +static unsigned int +hb_icu_get_eastasian_width (hb_codepoint_t unicode) +{ + switch (u_getIntPropertyValue(unicode, UCHAR_EAST_ASIAN_WIDTH)) + { + case U_EA_WIDE: + case U_EA_FULLWIDTH: + return 2; + case U_EA_NEUTRAL: + case U_EA_AMBIGUOUS: + case U_EA_HALFWIDTH: + case U_EA_NARROW: + return 1; + } + return 1; +} + +static hb_category_t +hb_icu_get_general_category (hb_codepoint_t unicode) +{ + switch (u_getIntPropertyValue(unicode, UCHAR_GENERAL_CATEGORY)) + { + case U_UNASSIGNED: return HB_CATEGORY_UNASSIGNED; + + case U_UPPERCASE_LETTER: return HB_CATEGORY_UPPERCASE_LETTER; /* Lu */ + case U_LOWERCASE_LETTER: return HB_CATEGORY_LOWERCASE_LETTER; /* Ll */ + case U_TITLECASE_LETTER: return HB_CATEGORY_TITLECASE_LETTER; /* Lt */ + case U_MODIFIER_LETTER: return HB_CATEGORY_MODIFIER_LETTER; /* Lm */ + case U_OTHER_LETTER: return HB_CATEGORY_OTHER_LETTER; /* Lo */ + + case U_NON_SPACING_MARK: return HB_CATEGORY_NON_SPACING_MARK; /* Mn */ + case U_ENCLOSING_MARK: return HB_CATEGORY_ENCLOSING_MARK; /* Me */ + case U_COMBINING_SPACING_MARK: return HB_CATEGORY_COMBINING_MARK; /* Mc */ + + case U_DECIMAL_DIGIT_NUMBER: return HB_CATEGORY_DECIMAL_NUMBER; /* Nd */ + case U_LETTER_NUMBER: return HB_CATEGORY_LETTER_NUMBER; /* Nl */ + case U_OTHER_NUMBER: return HB_CATEGORY_OTHER_NUMBER; /* No */ + + case U_SPACE_SEPARATOR: return HB_CATEGORY_SPACE_SEPARATOR; /* Zs */ + case U_LINE_SEPARATOR: return HB_CATEGORY_LINE_SEPARATOR; /* Zl */ + case U_PARAGRAPH_SEPARATOR: return HB_CATEGORY_PARAGRAPH_SEPARATOR; /* Zp */ + + case U_CONTROL_CHAR: return HB_CATEGORY_CONTROL; /* Cc */ + case U_FORMAT_CHAR: return HB_CATEGORY_FORMAT; /* Cf */ + case U_PRIVATE_USE_CHAR: return HB_CATEGORY_PRIVATE_USE; /* Co */ + case U_SURROGATE: return HB_CATEGORY_SURROGATE; /* Cs */ + + + case U_DASH_PUNCTUATION: return HB_CATEGORY_DASH_PUNCTUATION; /* Pd */ + case U_START_PUNCTUATION: return HB_CATEGORY_OPEN_PUNCTUATION; /* Ps */ + case U_END_PUNCTUATION: return HB_CATEGORY_CLOSE_PUNCTUATION; /* Pe */ + case U_CONNECTOR_PUNCTUATION: return HB_CATEGORY_CONNECT_PUNCTUATION; /* Pc */ + case U_OTHER_PUNCTUATION: return HB_CATEGORY_OTHER_PUNCTUATION; /* Po */ + + case U_MATH_SYMBOL: return HB_CATEGORY_MATH_SYMBOL; /* Sm */ + case U_CURRENCY_SYMBOL: return HB_CATEGORY_CURRENCY_SYMBOL; /* Sc */ + case U_MODIFIER_SYMBOL: return HB_CATEGORY_MODIFIER_SYMBOL; /* Sk */ + case U_OTHER_SYMBOL: return HB_CATEGORY_OTHER_SYMBOL; /* So */ + + case U_INITIAL_PUNCTUATION: return HB_CATEGORY_INITIAL_PUNCTUATION; /* Pi */ + case U_FINAL_PUNCTUATION: return HB_CATEGORY_FINAL_PUNCTUATION; /* Pf */ + } + + return HB_CATEGORY_UNASSIGNED; +} + +static hb_script_t +hb_icu_get_script (hb_codepoint_t unicode) +{ + UErrorCode status = U_ZERO_ERROR; + UScriptCode scriptCode = uscript_getScript(unicode, &status); + switch ((int) scriptCode) + { +#define CHECK_ICU_VERSION(major, minor) \ + U_ICU_VERSION_MAJOR_NUM > (major) || (U_ICU_VERSION_MAJOR_NUM == (major) && U_ICU_VERSION_MINOR_NUM >= (minor)) +#define MATCH_SCRIPT(C) case USCRIPT_##C: return HB_SCRIPT_##C +#define MATCH_SCRIPT2(C1, C2) case USCRIPT_##C1: return HB_SCRIPT_##C2 + MATCH_SCRIPT (INVALID_CODE); + MATCH_SCRIPT (COMMON); /* Zyyy */ + MATCH_SCRIPT (INHERITED); /* Qaai */ + MATCH_SCRIPT (ARABIC); /* Arab */ + MATCH_SCRIPT (ARMENIAN); /* Armn */ + MATCH_SCRIPT (BENGALI); /* Beng */ + MATCH_SCRIPT (BOPOMOFO); /* Bopo */ + MATCH_SCRIPT (CHEROKEE); /* Cher */ + MATCH_SCRIPT (COPTIC); /* Qaac */ + MATCH_SCRIPT (CYRILLIC); /* Cyrl (Cyrs) */ + MATCH_SCRIPT (DESERET); /* Dsrt */ + MATCH_SCRIPT (DEVANAGARI); /* Deva */ + MATCH_SCRIPT (ETHIOPIC); /* Ethi */ + MATCH_SCRIPT (GEORGIAN); /* Geor (Geon); Geoa) */ + MATCH_SCRIPT (GOTHIC); /* Goth */ + MATCH_SCRIPT (GREEK); /* Grek */ + MATCH_SCRIPT (GUJARATI); /* Gujr */ + MATCH_SCRIPT (GURMUKHI); /* Guru */ + MATCH_SCRIPT (HAN); /* Hani */ + MATCH_SCRIPT (HANGUL); /* Hang */ + MATCH_SCRIPT (HEBREW); /* Hebr */ + MATCH_SCRIPT (HIRAGANA); /* Hira */ + MATCH_SCRIPT (KANNADA); /* Knda */ + MATCH_SCRIPT (KATAKANA); /* Kana */ + MATCH_SCRIPT (KHMER); /* Khmr */ + MATCH_SCRIPT (LAO); /* Laoo */ + MATCH_SCRIPT (LATIN); /* Latn (Latf); Latg) */ + MATCH_SCRIPT (MALAYALAM); /* Mlym */ + MATCH_SCRIPT (MONGOLIAN); /* Mong */ + MATCH_SCRIPT (MYANMAR); /* Mymr */ + MATCH_SCRIPT (OGHAM); /* Ogam */ + MATCH_SCRIPT (OLD_ITALIC); /* Ital */ + MATCH_SCRIPT (ORIYA); /* Orya */ + MATCH_SCRIPT (RUNIC); /* Runr */ + MATCH_SCRIPT (SINHALA); /* Sinh */ + MATCH_SCRIPT (SYRIAC); /* Syrc (Syrj, Syrn); Syre) */ + MATCH_SCRIPT (TAMIL); /* Taml */ + MATCH_SCRIPT (TELUGU); /* Telu */ + MATCH_SCRIPT (THAANA); /* Thaa */ + MATCH_SCRIPT (THAI); /* Thai */ + MATCH_SCRIPT (TIBETAN); /* Tibt */ + MATCH_SCRIPT (CANADIAN_ABORIGINAL);/* Cans */ + MATCH_SCRIPT (YI); /* Yiii */ + MATCH_SCRIPT (TAGALOG); /* Tglg */ + MATCH_SCRIPT (HANUNOO); /* Hano */ + MATCH_SCRIPT (BUHID); /* Buhd */ + MATCH_SCRIPT (TAGBANWA); /* Tagb */ + + /* Unicode-4.0 additions */ + MATCH_SCRIPT (BRAILLE); /* Brai */ + MATCH_SCRIPT (CYPRIOT); /* Cprt */ + MATCH_SCRIPT (LIMBU); /* Limb */ + MATCH_SCRIPT (OSMANYA); /* Osma */ + MATCH_SCRIPT (SHAVIAN); /* Shaw */ + MATCH_SCRIPT (LINEAR_B); /* Linb */ + MATCH_SCRIPT (TAI_LE); /* Tale */ + MATCH_SCRIPT (UGARITIC); /* Ugar */ + + /* Unicode-4.1 additions */ + MATCH_SCRIPT (NEW_TAI_LUE); /* Talu */ + MATCH_SCRIPT (BUGINESE); /* Bugi */ + MATCH_SCRIPT (GLAGOLITIC); /* Glag */ + MATCH_SCRIPT (TIFINAGH); /* Tfng */ + MATCH_SCRIPT (SYLOTI_NAGRI); /* Sylo */ + MATCH_SCRIPT (OLD_PERSIAN); /* Xpeo */ + MATCH_SCRIPT (KHAROSHTHI); /* Khar */ + + /* Unicode-5.0 additions */ + MATCH_SCRIPT (UNKNOWN); /* Zzzz */ + MATCH_SCRIPT (BALINESE); /* Bali */ + MATCH_SCRIPT (CUNEIFORM); /* Xsux */ + MATCH_SCRIPT (PHOENICIAN); /* Phnx */ + MATCH_SCRIPT (PHAGS_PA); /* Phag */ + MATCH_SCRIPT (NKO); /* Nkoo */ + + /* Unicode-5.1 additions */ + MATCH_SCRIPT (KAYAH_LI); /* Kali */ + MATCH_SCRIPT (LEPCHA); /* Lepc */ + MATCH_SCRIPT (REJANG); /* Rjng */ + MATCH_SCRIPT (SUNDANESE); /* Sund */ + MATCH_SCRIPT (SAURASHTRA); /* Saur */ + MATCH_SCRIPT (CHAM); /* Cham */ + MATCH_SCRIPT (OL_CHIKI); /* Olck */ + MATCH_SCRIPT (VAI); /* Vaii */ + MATCH_SCRIPT (CARIAN); /* Cari */ + MATCH_SCRIPT (LYCIAN); /* Lyci */ + MATCH_SCRIPT (LYDIAN); /* Lydi */ + + /* Unicode-5.2 additions */ + MATCH_SCRIPT (AVESTAN); /* Avst */ +#if CHECK_ICU_VERSION (4, 4) + MATCH_SCRIPT (BAMUM); /* Bamu */ +#endif + MATCH_SCRIPT (EGYPTIAN_HIEROGLYPHS); /* Egyp */ + MATCH_SCRIPT (IMPERIAL_ARAMAIC); /* Armi */ + MATCH_SCRIPT (INSCRIPTIONAL_PAHLAVI); /* Phli */ + MATCH_SCRIPT (INSCRIPTIONAL_PARTHIAN); /* Prti */ + MATCH_SCRIPT (JAVANESE); /* Java */ + MATCH_SCRIPT (KAITHI); /* Kthi */ + MATCH_SCRIPT2(LANNA, TAI_THAM); /* Lana */ +#if CHECK_ICU_VERSION (4, 4) + MATCH_SCRIPT (LISU); /* Lisu */ +#endif + MATCH_SCRIPT2(MEITEI_MAYEK, MEETEI_MAYEK);/* Mtei */ +#if CHECK_ICU_VERSION (4, 4) + MATCH_SCRIPT (OLD_SOUTH_ARABIAN); /* Sarb */ +#endif + MATCH_SCRIPT2(ORKHON, OLD_TURKIC); /* Orkh */ + MATCH_SCRIPT (SAMARITAN); /* Samr */ + MATCH_SCRIPT (TAI_VIET); /* Tavt */ + + /* Unicode-6.0 additions */ + MATCH_SCRIPT (BATAK); /* Batk */ + MATCH_SCRIPT (BRAHMI); /* Brah */ + MATCH_SCRIPT2(MANDAEAN, MANDAIC); /* Mand */ + + } + return HB_SCRIPT_UNKNOWN; +} + +static hb_unicode_funcs_t icu_ufuncs = { + HB_REFERENCE_COUNT_INVALID, /* ref_count */ + TRUE, /* immutable */ + { + hb_icu_get_general_category, + hb_icu_get_combining_class, + hb_icu_get_mirroring, + hb_icu_get_script, + hb_icu_get_eastasian_width + } +}; + +hb_unicode_funcs_t * +hb_icu_get_unicode_funcs (void) +{ + return &icu_ufuncs; +} + + +HB_END_DECLS |