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harfbuzz/src/hb-icu.c

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/*
* Copyright (C) 2009 Red Hat, Inc.
* Copyright (C) 2009 Keith Stribley <devel@thanlwinsoft.org>
*
* 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/uchar.h>
#include <unicode/uscript.h>
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 MATCH_SCRIPT(C) case USCRIPT_##C: return HB_SCRIPT_##C
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 */
}
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;
}
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