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harfbuzz/src/hb-icu.cc

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/*
* 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.hh"
#include "hb-icu.h"
#include "hb-unicode-private.hh"
#include <unicode/uversion.h>
#include <unicode/uchar.h>
HB_BEGIN_DECLS
hb_script_t
hb_icu_script_to_script (UScriptCode script)
{
return hb_script_from_string (uscript_getShortName (script));
}
UScriptCode
hb_icu_script_from_script (hb_script_t script)
{
switch ((int) script)
{
#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 HB_SCRIPT_##C: return USCRIPT_##C
#define MATCH_SCRIPT2(C1, C2) case HB_SCRIPT_##C2: return USCRIPT_##C1
MATCH_SCRIPT2(INVALID_CODE, INVALID);
MATCH_SCRIPT (COMMON);
MATCH_SCRIPT (INHERITED);
MATCH_SCRIPT (ARABIC);
MATCH_SCRIPT (ARMENIAN);
MATCH_SCRIPT (BENGALI);
MATCH_SCRIPT (BOPOMOFO);
MATCH_SCRIPT (CHEROKEE);
MATCH_SCRIPT (COPTIC);
MATCH_SCRIPT (CYRILLIC);
MATCH_SCRIPT (DESERET);
MATCH_SCRIPT (DEVANAGARI);
MATCH_SCRIPT (ETHIOPIC);
MATCH_SCRIPT (GEORGIAN);
MATCH_SCRIPT (GOTHIC);
MATCH_SCRIPT (GREEK);
MATCH_SCRIPT (GUJARATI);
MATCH_SCRIPT (GURMUKHI);
MATCH_SCRIPT (HAN);
MATCH_SCRIPT (HANGUL);
MATCH_SCRIPT (HEBREW);
MATCH_SCRIPT (HIRAGANA);
MATCH_SCRIPT (KANNADA);
MATCH_SCRIPT (KATAKANA);
MATCH_SCRIPT (KHMER);
MATCH_SCRIPT (LAO);
MATCH_SCRIPT (LATIN);
MATCH_SCRIPT (MALAYALAM);
MATCH_SCRIPT (MONGOLIAN);
MATCH_SCRIPT (MYANMAR);
MATCH_SCRIPT (OGHAM);
MATCH_SCRIPT (OLD_ITALIC);
MATCH_SCRIPT (ORIYA);
MATCH_SCRIPT (RUNIC);
MATCH_SCRIPT (SINHALA);
MATCH_SCRIPT (SYRIAC);
MATCH_SCRIPT (TAMIL);
MATCH_SCRIPT (TELUGU);
MATCH_SCRIPT (THAANA);
MATCH_SCRIPT (THAI);
MATCH_SCRIPT (TIBETAN);
MATCH_SCRIPT (CANADIAN_ABORIGINAL);
MATCH_SCRIPT (YI);
MATCH_SCRIPT (TAGALOG);
MATCH_SCRIPT (HANUNOO);
MATCH_SCRIPT (BUHID);
MATCH_SCRIPT (TAGBANWA);
/* Unicode-4.0 additions */
MATCH_SCRIPT (BRAILLE);
MATCH_SCRIPT (CYPRIOT);
MATCH_SCRIPT (LIMBU);
MATCH_SCRIPT (OSMANYA);
MATCH_SCRIPT (SHAVIAN);
MATCH_SCRIPT (LINEAR_B);
MATCH_SCRIPT (TAI_LE);
MATCH_SCRIPT (UGARITIC);
/* Unicode-4.1 additions */
MATCH_SCRIPT (NEW_TAI_LUE);
MATCH_SCRIPT (BUGINESE);
MATCH_SCRIPT (GLAGOLITIC);
MATCH_SCRIPT (TIFINAGH);
MATCH_SCRIPT (SYLOTI_NAGRI);
MATCH_SCRIPT (OLD_PERSIAN);
MATCH_SCRIPT (KHAROSHTHI);
/* Unicode-5.0 additions */
MATCH_SCRIPT (UNKNOWN);
MATCH_SCRIPT (BALINESE);
MATCH_SCRIPT (CUNEIFORM);
MATCH_SCRIPT (PHOENICIAN);
MATCH_SCRIPT (PHAGS_PA);
MATCH_SCRIPT (NKO);
/* Unicode-5.1 additions */
MATCH_SCRIPT (KAYAH_LI);
MATCH_SCRIPT (LEPCHA);
MATCH_SCRIPT (REJANG);
MATCH_SCRIPT (SUNDANESE);
MATCH_SCRIPT (SAURASHTRA);
MATCH_SCRIPT (CHAM);
MATCH_SCRIPT (OL_CHIKI);
MATCH_SCRIPT (VAI);
MATCH_SCRIPT (CARIAN);
MATCH_SCRIPT (LYCIAN);
MATCH_SCRIPT (LYDIAN);
/* Unicode-5.2 additions */
MATCH_SCRIPT (AVESTAN);
#if CHECK_ICU_VERSION (4, 4)
MATCH_SCRIPT (BAMUM);
#endif
MATCH_SCRIPT (EGYPTIAN_HIEROGLYPHS);
MATCH_SCRIPT (IMPERIAL_ARAMAIC);
MATCH_SCRIPT (INSCRIPTIONAL_PAHLAVI);
MATCH_SCRIPT (INSCRIPTIONAL_PARTHIAN);
MATCH_SCRIPT (JAVANESE);
MATCH_SCRIPT (KAITHI);
MATCH_SCRIPT2(LANNA, TAI_THAM);
#if CHECK_ICU_VERSION (4, 4)
MATCH_SCRIPT (LISU);
#endif
MATCH_SCRIPT2(MEITEI_MAYEK, MEETEI_MAYEK);
#if CHECK_ICU_VERSION (4, 4)
MATCH_SCRIPT (OLD_SOUTH_ARABIAN);
#endif
MATCH_SCRIPT2(ORKHON, OLD_TURKIC);
MATCH_SCRIPT (SAMARITAN);
MATCH_SCRIPT (TAI_VIET);
/* Unicode-6.0 additions */
MATCH_SCRIPT (BATAK);
MATCH_SCRIPT (BRAHMI);
MATCH_SCRIPT2(MANDAEAN, MANDAIC);
#undef CHECK_ICU_VERSION
#undef MATCH_SCRIPT
#undef MATCH_SCRIPT2
}
return USCRIPT_UNKNOWN;
}
static unsigned int
hb_icu_get_combining_class (hb_unicode_funcs_t *ufuncs,
hb_codepoint_t unicode,
void *user_data)
{
return u_getCombiningClass (unicode);
}
static unsigned int
hb_icu_get_eastasian_width (hb_unicode_funcs_t *ufuncs,
hb_codepoint_t unicode,
void *user_data)
{
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_unicode_general_category_t
hb_icu_get_general_category (hb_unicode_funcs_t *ufuncs,
hb_codepoint_t unicode,
void *user_data)
{
switch (u_getIntPropertyValue(unicode, UCHAR_GENERAL_CATEGORY))
{
case U_UNASSIGNED: return HB_UNICODE_GENERAL_CATEGORY_UNASSIGNED;
case U_UPPERCASE_LETTER: return HB_UNICODE_GENERAL_CATEGORY_UPPERCASE_LETTER;
case U_LOWERCASE_LETTER: return HB_UNICODE_GENERAL_CATEGORY_LOWERCASE_LETTER;
case U_TITLECASE_LETTER: return HB_UNICODE_GENERAL_CATEGORY_TITLECASE_LETTER;
case U_MODIFIER_LETTER: return HB_UNICODE_GENERAL_CATEGORY_MODIFIER_LETTER;
case U_OTHER_LETTER: return HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER;
case U_NON_SPACING_MARK: return HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK;
case U_ENCLOSING_MARK: return HB_UNICODE_GENERAL_CATEGORY_ENCLOSING_MARK;
case U_COMBINING_SPACING_MARK: return HB_UNICODE_GENERAL_CATEGORY_COMBINING_MARK;
case U_DECIMAL_DIGIT_NUMBER: return HB_UNICODE_GENERAL_CATEGORY_DECIMAL_NUMBER;
case U_LETTER_NUMBER: return HB_UNICODE_GENERAL_CATEGORY_LETTER_NUMBER;
case U_OTHER_NUMBER: return HB_UNICODE_GENERAL_CATEGORY_OTHER_NUMBER;
case U_SPACE_SEPARATOR: return HB_UNICODE_GENERAL_CATEGORY_SPACE_SEPARATOR;
case U_LINE_SEPARATOR: return HB_UNICODE_GENERAL_CATEGORY_LINE_SEPARATOR;
case U_PARAGRAPH_SEPARATOR: return HB_UNICODE_GENERAL_CATEGORY_PARAGRAPH_SEPARATOR;
case U_CONTROL_CHAR: return HB_UNICODE_GENERAL_CATEGORY_CONTROL;
case U_FORMAT_CHAR: return HB_UNICODE_GENERAL_CATEGORY_FORMAT;
case U_PRIVATE_USE_CHAR: return HB_UNICODE_GENERAL_CATEGORY_PRIVATE_USE;
case U_SURROGATE: return HB_UNICODE_GENERAL_CATEGORY_SURROGATE;
case U_DASH_PUNCTUATION: return HB_UNICODE_GENERAL_CATEGORY_DASH_PUNCTUATION;
case U_START_PUNCTUATION: return HB_UNICODE_GENERAL_CATEGORY_OPEN_PUNCTUATION;
case U_END_PUNCTUATION: return HB_UNICODE_GENERAL_CATEGORY_CLOSE_PUNCTUATION;
case U_CONNECTOR_PUNCTUATION: return HB_UNICODE_GENERAL_CATEGORY_CONNECT_PUNCTUATION;
case U_OTHER_PUNCTUATION: return HB_UNICODE_GENERAL_CATEGORY_OTHER_PUNCTUATION;
case U_MATH_SYMBOL: return HB_UNICODE_GENERAL_CATEGORY_MATH_SYMBOL;
case U_CURRENCY_SYMBOL: return HB_UNICODE_GENERAL_CATEGORY_CURRENCY_SYMBOL;
case U_MODIFIER_SYMBOL: return HB_UNICODE_GENERAL_CATEGORY_MODIFIER_SYMBOL;
case U_OTHER_SYMBOL: return HB_UNICODE_GENERAL_CATEGORY_OTHER_SYMBOL;
case U_INITIAL_PUNCTUATION: return HB_UNICODE_GENERAL_CATEGORY_INITIAL_PUNCTUATION;
case U_FINAL_PUNCTUATION: return HB_UNICODE_GENERAL_CATEGORY_FINAL_PUNCTUATION;
}
return HB_UNICODE_GENERAL_CATEGORY_UNASSIGNED;
}
static hb_codepoint_t
hb_icu_get_mirroring (hb_unicode_funcs_t *ufuncs,
hb_codepoint_t unicode,
void *user_data)
{
return u_charMirror(unicode);
}
static hb_script_t
hb_icu_get_script (hb_unicode_funcs_t *ufuncs,
hb_codepoint_t unicode,
void *user_data)
{
UErrorCode status = U_ZERO_ERROR;
UScriptCode scriptCode = uscript_getScript(unicode, &status);
return hb_icu_script_to_script (scriptCode);
}
static hb_unicode_funcs_t icu_ufuncs = {
HB_REFERENCE_COUNT_INVALID, /* ref_count */
NULL, /* parent */
TRUE, /* immutable */
{
hb_icu_get_combining_class,
hb_icu_get_eastasian_width,
hb_icu_get_general_category,
hb_icu_get_mirroring,
hb_icu_get_script
}
};
hb_unicode_funcs_t *
hb_icu_get_unicode_funcs (void)
{
return &icu_ufuncs;
}
HB_END_DECLS
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