222 lines
8.6 KiB
C
222 lines
8.6 KiB
C
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/*
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* Copyright (C) 2009 Red Hat, Inc.
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* Copyright (C) 2009 Keith Stribley <devel@thanlwinsoft.org>
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*
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* This is part of HarfBuzz, an OpenType Layout engine library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Red Hat Author(s): Behdad Esfahbod
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*/
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#include "hb-private.h"
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#include "hb-icu.h"
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#include "hb-unicode-private.h"
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#include <unicode/uchar.h>
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#include <unicode/uscript.h>
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static hb_codepoint_t hb_icu_get_mirroring (hb_codepoint_t unicode) { return u_charMirror(unicode); }
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static unsigned int hb_icu_get_combining_class (hb_codepoint_t unicode) { return u_getCombiningClass (unicode); }
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static unsigned int
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hb_icu_get_eastasian_width (hb_codepoint_t unicode)
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{
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switch (u_getIntPropertyValue(unicode, UCHAR_EAST_ASIAN_WIDTH))
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{
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case U_EA_WIDE:
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case U_EA_FULLWIDTH:
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return 2;
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case U_EA_NEUTRAL:
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case U_EA_AMBIGUOUS:
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case U_EA_HALFWIDTH:
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case U_EA_NARROW:
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return 1;
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}
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return 1;
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}
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static hb_category_t
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hb_icu_get_general_category (hb_codepoint_t unicode)
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{
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switch (u_getIntPropertyValue(unicode, UCHAR_GENERAL_CATEGORY))
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{
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case U_UNASSIGNED: return HB_CATEGORY_UNASSIGNED;
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case U_UPPERCASE_LETTER: return HB_CATEGORY_UPPERCASE_LETTER; /* Lu */
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case U_LOWERCASE_LETTER: return HB_CATEGORY_LOWERCASE_LETTER; /* Ll */
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case U_TITLECASE_LETTER: return HB_CATEGORY_TITLECASE_LETTER; /* Lt */
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case U_MODIFIER_LETTER: return HB_CATEGORY_MODIFIER_LETTER; /* Lm */
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case U_OTHER_LETTER: return HB_CATEGORY_OTHER_LETTER; /* Lo */
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case U_NON_SPACING_MARK: return HB_CATEGORY_NON_SPACING_MARK; /* Mn */
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case U_ENCLOSING_MARK: return HB_CATEGORY_ENCLOSING_MARK; /* Me */
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case U_COMBINING_SPACING_MARK: return HB_CATEGORY_COMBINING_MARK; /* Mc */
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case U_DECIMAL_DIGIT_NUMBER: return HB_CATEGORY_DECIMAL_NUMBER; /* Nd */
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case U_LETTER_NUMBER: return HB_CATEGORY_LETTER_NUMBER; /* Nl */
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case U_OTHER_NUMBER: return HB_CATEGORY_OTHER_NUMBER; /* No */
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case U_SPACE_SEPARATOR: return HB_CATEGORY_SPACE_SEPARATOR; /* Zs */
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case U_LINE_SEPARATOR: return HB_CATEGORY_LINE_SEPARATOR; /* Zl */
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case U_PARAGRAPH_SEPARATOR: return HB_CATEGORY_PARAGRAPH_SEPARATOR; /* Zp */
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case U_CONTROL_CHAR: return HB_CATEGORY_CONTROL; /* Cc */
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case U_FORMAT_CHAR: return HB_CATEGORY_FORMAT; /* Cf */
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case U_PRIVATE_USE_CHAR: return HB_CATEGORY_PRIVATE_USE; /* Co */
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case U_SURROGATE: return HB_CATEGORY_SURROGATE; /* Cs */
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case U_DASH_PUNCTUATION: return HB_CATEGORY_DASH_PUNCTUATION; /* Pd */
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case U_START_PUNCTUATION: return HB_CATEGORY_OPEN_PUNCTUATION; /* Ps */
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case U_END_PUNCTUATION: return HB_CATEGORY_CLOSE_PUNCTUATION; /* Pe */
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case U_CONNECTOR_PUNCTUATION: return HB_CATEGORY_CONNECT_PUNCTUATION; /* Pc */
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case U_OTHER_PUNCTUATION: return HB_CATEGORY_OTHER_PUNCTUATION; /* Po */
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case U_MATH_SYMBOL: return HB_CATEGORY_MATH_SYMBOL; /* Sm */
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case U_CURRENCY_SYMBOL: return HB_CATEGORY_CURRENCY_SYMBOL; /* Sc */
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case U_MODIFIER_SYMBOL: return HB_CATEGORY_MODIFIER_SYMBOL; /* Sk */
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case U_OTHER_SYMBOL: return HB_CATEGORY_OTHER_SYMBOL; /* So */
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case U_INITIAL_PUNCTUATION: return HB_CATEGORY_INITIAL_PUNCTUATION; /* Pi */
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case U_FINAL_PUNCTUATION: return HB_CATEGORY_FINAL_PUNCTUATION; /* Pf */
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}
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return HB_CATEGORY_UNASSIGNED;
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}
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static hb_script_t
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hb_icu_get_script (hb_codepoint_t unicode)
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{
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UErrorCode status = U_ZERO_ERROR;
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UScriptCode scriptCode = uscript_getScript(unicode, &status);
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switch ((int) scriptCode)
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{
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#define MATCH_SCRIPT(C) case USCRIPT_##C: return HB_SCRIPT_##C
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MATCH_SCRIPT (INVALID_CODE);
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MATCH_SCRIPT (COMMON); /* Zyyy */
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MATCH_SCRIPT (INHERITED); /* Qaai */
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MATCH_SCRIPT (ARABIC); /* Arab */
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MATCH_SCRIPT (ARMENIAN); /* Armn */
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MATCH_SCRIPT (BENGALI); /* Beng */
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MATCH_SCRIPT (BOPOMOFO); /* Bopo */
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MATCH_SCRIPT (CHEROKEE); /* Cher */
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MATCH_SCRIPT (COPTIC); /* Qaac */
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MATCH_SCRIPT (CYRILLIC); /* Cyrl (Cyrs) */
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MATCH_SCRIPT (DESERET); /* Dsrt */
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MATCH_SCRIPT (DEVANAGARI); /* Deva */
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MATCH_SCRIPT (ETHIOPIC); /* Ethi */
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MATCH_SCRIPT (GEORGIAN); /* Geor (Geon); Geoa) */
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MATCH_SCRIPT (GOTHIC); /* Goth */
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MATCH_SCRIPT (GREEK); /* Grek */
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MATCH_SCRIPT (GUJARATI); /* Gujr */
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MATCH_SCRIPT (GURMUKHI); /* Guru */
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MATCH_SCRIPT (HAN); /* Hani */
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MATCH_SCRIPT (HANGUL); /* Hang */
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MATCH_SCRIPT (HEBREW); /* Hebr */
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MATCH_SCRIPT (HIRAGANA); /* Hira */
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MATCH_SCRIPT (KANNADA); /* Knda */
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MATCH_SCRIPT (KATAKANA); /* Kana */
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MATCH_SCRIPT (KHMER); /* Khmr */
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MATCH_SCRIPT (LAO); /* Laoo */
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MATCH_SCRIPT (LATIN); /* Latn (Latf); Latg) */
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MATCH_SCRIPT (MALAYALAM); /* Mlym */
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MATCH_SCRIPT (MONGOLIAN); /* Mong */
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MATCH_SCRIPT (MYANMAR); /* Mymr */
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MATCH_SCRIPT (OGHAM); /* Ogam */
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MATCH_SCRIPT (OLD_ITALIC); /* Ital */
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MATCH_SCRIPT (ORIYA); /* Orya */
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MATCH_SCRIPT (RUNIC); /* Runr */
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MATCH_SCRIPT (SINHALA); /* Sinh */
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MATCH_SCRIPT (SYRIAC); /* Syrc (Syrj, Syrn); Syre) */
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MATCH_SCRIPT (TAMIL); /* Taml */
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MATCH_SCRIPT (TELUGU); /* Telu */
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MATCH_SCRIPT (THAANA); /* Thaa */
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MATCH_SCRIPT (THAI); /* Thai */
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MATCH_SCRIPT (TIBETAN); /* Tibt */
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MATCH_SCRIPT (CANADIAN_ABORIGINAL);/* Cans */
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MATCH_SCRIPT (YI); /* Yiii */
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MATCH_SCRIPT (TAGALOG); /* Tglg */
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MATCH_SCRIPT (HANUNOO); /* Hano */
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MATCH_SCRIPT (BUHID); /* Buhd */
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MATCH_SCRIPT (TAGBANWA); /* Tagb */
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/* Unicode-4.0 additions */
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MATCH_SCRIPT (BRAILLE); /* Brai */
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MATCH_SCRIPT (CYPRIOT); /* Cprt */
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MATCH_SCRIPT (LIMBU); /* Limb */
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MATCH_SCRIPT (OSMANYA); /* Osma */
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MATCH_SCRIPT (SHAVIAN); /* Shaw */
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MATCH_SCRIPT (LINEAR_B); /* Linb */
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MATCH_SCRIPT (TAI_LE); /* Tale */
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MATCH_SCRIPT (UGARITIC); /* Ugar */
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/* Unicode-4.1 additions */
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MATCH_SCRIPT (NEW_TAI_LUE); /* Talu */
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MATCH_SCRIPT (BUGINESE); /* Bugi */
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MATCH_SCRIPT (GLAGOLITIC); /* Glag */
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MATCH_SCRIPT (TIFINAGH); /* Tfng */
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MATCH_SCRIPT (SYLOTI_NAGRI); /* Sylo */
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MATCH_SCRIPT (OLD_PERSIAN); /* Xpeo */
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MATCH_SCRIPT (KHAROSHTHI); /* Khar */
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/* Unicode-5.0 additions */
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MATCH_SCRIPT (UNKNOWN); /* Zzzz */
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MATCH_SCRIPT (BALINESE); /* Bali */
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MATCH_SCRIPT (CUNEIFORM); /* Xsux */
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MATCH_SCRIPT (PHOENICIAN); /* Phnx */
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MATCH_SCRIPT (PHAGS_PA); /* Phag */
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MATCH_SCRIPT (NKO); /* Nkoo */
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/* Unicode-5.1 additions */
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MATCH_SCRIPT (KAYAH_LI); /* Kali */
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MATCH_SCRIPT (LEPCHA); /* Lepc */
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MATCH_SCRIPT (REJANG); /* Rjng */
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MATCH_SCRIPT (SUNDANESE); /* Sund */
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MATCH_SCRIPT (SAURASHTRA); /* Saur */
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MATCH_SCRIPT (CHAM); /* Cham */
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MATCH_SCRIPT (OL_CHIKI); /* Olck */
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MATCH_SCRIPT (VAI); /* Vaii */
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MATCH_SCRIPT (CARIAN); /* Cari */
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MATCH_SCRIPT (LYCIAN); /* Lyci */
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MATCH_SCRIPT (LYDIAN); /* Lydi */
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}
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return HB_SCRIPT_UNKNOWN;
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}
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static hb_unicode_funcs_t icu_ufuncs = {
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HB_REFERENCE_COUNT_INVALID, /* ref_count */
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TRUE, /* immutable */
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hb_icu_get_general_category,
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hb_icu_get_combining_class,
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hb_icu_get_mirroring,
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hb_icu_get_script,
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hb_icu_get_eastasian_width
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};
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hb_unicode_funcs_t *
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hb_icu_get_unicode_funcs (void)
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{
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return &icu_ufuncs;
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}
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