diff options
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-0.9.15/src/hb-icu.cc')
-rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-0.9.15/src/hb-icu.cc | 372 |
1 files changed, 0 insertions, 372 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-0.9.15/src/hb-icu.cc b/Build/source/libs/harfbuzz/harfbuzz-0.9.15/src/hb-icu.cc deleted file mode 100644 index c177be2c4b2..00000000000 --- a/Build/source/libs/harfbuzz/harfbuzz-0.9.15/src/hb-icu.cc +++ /dev/null @@ -1,372 +0,0 @@ -/* - * Copyright © 2009 Red Hat, Inc. - * Copyright © 2009 Keith Stribley - * Copyright © 2011 Google, Inc. - * - * 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 - * Google Author(s): Behdad Esfahbod - */ - -#include "hb-private.hh" - -#include "hb-icu.h" - -#include "hb-unicode-private.hh" - -#include <unicode/uchar.h> -#include <unicode/unorm.h> -#include <unicode/ustring.h> -#include <unicode/uversion.h> - - -hb_script_t -hb_icu_script_to_script (UScriptCode script) -{ - if (unlikely (script == USCRIPT_INVALID_CODE)) - return HB_SCRIPT_INVALID; - - return hb_script_from_string (uscript_getShortName (script), -1); -} - -UScriptCode -hb_icu_script_from_script (hb_script_t script) -{ - if (unlikely (script == HB_SCRIPT_INVALID)) - return USCRIPT_INVALID_CODE; - - for (unsigned int i = 0; i < USCRIPT_CODE_LIMIT; i++) - if (unlikely (hb_icu_script_to_script ((UScriptCode) i) == script)) - return (UScriptCode) i; - - return USCRIPT_UNKNOWN; -} - - -static hb_unicode_combining_class_t -hb_icu_unicode_combining_class (hb_unicode_funcs_t *ufuncs HB_UNUSED, - hb_codepoint_t unicode, - void *user_data HB_UNUSED) - -{ - return (hb_unicode_combining_class_t) u_getCombiningClass (unicode); -} - -static unsigned int -hb_icu_unicode_eastasian_width (hb_unicode_funcs_t *ufuncs HB_UNUSED, - hb_codepoint_t unicode, - void *user_data HB_UNUSED) -{ - 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_unicode_general_category (hb_unicode_funcs_t *ufuncs HB_UNUSED, - hb_codepoint_t unicode, - void *user_data HB_UNUSED) -{ - 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_SPACING_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_unicode_mirroring (hb_unicode_funcs_t *ufuncs HB_UNUSED, - hb_codepoint_t unicode, - void *user_data HB_UNUSED) -{ - return u_charMirror(unicode); -} - -static hb_script_t -hb_icu_unicode_script (hb_unicode_funcs_t *ufuncs HB_UNUSED, - hb_codepoint_t unicode, - void *user_data HB_UNUSED) -{ - UErrorCode status = U_ZERO_ERROR; - UScriptCode scriptCode = uscript_getScript(unicode, &status); - - if (unlikely (U_FAILURE (status))) - return HB_SCRIPT_UNKNOWN; - - return hb_icu_script_to_script (scriptCode); -} - -#if U_ICU_VERSION_MAJOR_NUM >= 49 -static const UNormalizer2 *normalizer; -#endif - -static hb_bool_t -hb_icu_unicode_compose (hb_unicode_funcs_t *ufuncs HB_UNUSED, - hb_codepoint_t a, - hb_codepoint_t b, - hb_codepoint_t *ab, - void *user_data HB_UNUSED) -{ -#if U_ICU_VERSION_MAJOR_NUM >= 49 - { - UChar32 ret = unorm2_composePair (normalizer, a, b); - if (ret < 0) return false; - *ab = ret; - return true; - } -#endif - - /* We don't ifdef-out the fallback code such that compiler always - * sees it and makes sure it's compilable. */ - - UChar utf16[4], normalized[5]; - unsigned int len; - hb_bool_t ret, err; - UErrorCode icu_err; - - len = 0; - err = false; - U16_APPEND (utf16, len, ARRAY_LENGTH (utf16), a, err); - if (err) return false; - U16_APPEND (utf16, len, ARRAY_LENGTH (utf16), b, err); - if (err) return false; - - icu_err = U_ZERO_ERROR; - len = unorm_normalize (utf16, len, UNORM_NFC, 0, normalized, ARRAY_LENGTH (normalized), &icu_err); - if (U_FAILURE (icu_err)) - return false; - if (u_countChar32 (normalized, len) == 1) { - U16_GET_UNSAFE (normalized, 0, *ab); - ret = true; - } else { - ret = false; - } - - return ret; -} - -static hb_bool_t -hb_icu_unicode_decompose (hb_unicode_funcs_t *ufuncs HB_UNUSED, - hb_codepoint_t ab, - hb_codepoint_t *a, - hb_codepoint_t *b, - void *user_data HB_UNUSED) -{ -#if U_ICU_VERSION_MAJOR_NUM >= 49 - { - UChar decomposed[4]; - int len; - UErrorCode icu_err = U_ZERO_ERROR; - len = unorm2_getRawDecomposition (normalizer, ab, decomposed, - ARRAY_LENGTH (decomposed), &icu_err); - if (U_FAILURE (icu_err) || len < 0) return false; - - len = u_countChar32 (decomposed, len); - if (len == 1) { - U16_GET_UNSAFE (decomposed, 0, *a); - *b = 0; - return *a != ab; - } else if (len == 2) { - len =0; - U16_NEXT_UNSAFE (decomposed, len, *a); - U16_NEXT_UNSAFE (decomposed, len, *b); - } - return true; - } -#endif - - /* We don't ifdef-out the fallback code such that compiler always - * sees it and makes sure it's compilable. */ - - UChar utf16[2], normalized[2 * HB_UNICODE_MAX_DECOMPOSITION_LEN + 1]; - unsigned int len; - hb_bool_t ret, err; - UErrorCode icu_err; - - /* This function is a monster! Maybe it wasn't a good idea adding a - * pairwise decompose API... */ - /* Watchout for the dragons. Err, watchout for macros changing len. */ - - len = 0; - err = false; - U16_APPEND (utf16, len, ARRAY_LENGTH (utf16), ab, err); - if (err) return false; - - icu_err = U_ZERO_ERROR; - len = unorm_normalize (utf16, len, UNORM_NFD, 0, normalized, ARRAY_LENGTH (normalized), &icu_err); - if (U_FAILURE (icu_err)) - return false; - - len = u_countChar32 (normalized, len); - - if (len == 1) { - U16_GET_UNSAFE (normalized, 0, *a); - *b = 0; - ret = *a != ab; - } else if (len == 2) { - len =0; - U16_NEXT_UNSAFE (normalized, len, *a); - U16_NEXT_UNSAFE (normalized, len, *b); - - /* Here's the ugly part: if ab decomposes to a single character and - * that character decomposes again, we have to detect that and undo - * the second part :-(. */ - UChar recomposed[20]; - icu_err = U_ZERO_ERROR; - unorm_normalize (normalized, len, UNORM_NFC, 0, recomposed, ARRAY_LENGTH (recomposed), &icu_err); - if (U_FAILURE (icu_err)) - return false; - hb_codepoint_t c; - U16_GET_UNSAFE (recomposed, 0, c); - if (c != *a && c != ab) { - *a = c; - *b = 0; - } - ret = true; - } else { - /* If decomposed to more than two characters, take the last one, - * and recompose the rest to get the first component. */ - U16_PREV_UNSAFE (normalized, len, *b); /* Changes len in-place. */ - UChar recomposed[18 * 2]; - icu_err = U_ZERO_ERROR; - len = unorm_normalize (normalized, len, UNORM_NFC, 0, recomposed, ARRAY_LENGTH (recomposed), &icu_err); - if (U_FAILURE (icu_err)) - return false; - /* We expect that recomposed has exactly one character now. */ - if (unlikely (u_countChar32 (recomposed, len) != 1)) - return false; - U16_GET_UNSAFE (recomposed, 0, *a); - ret = true; - } - - return ret; -} - -static unsigned int -hb_icu_unicode_decompose_compatibility (hb_unicode_funcs_t *ufuncs HB_UNUSED, - hb_codepoint_t u, - hb_codepoint_t *decomposed, - void *user_data HB_UNUSED) -{ - UChar utf16[2], normalized[2 * HB_UNICODE_MAX_DECOMPOSITION_LEN + 1]; - unsigned int len; - int32_t utf32_len; - hb_bool_t err; - UErrorCode icu_err; - - /* Copy @u into a UTF-16 array to be passed to ICU. */ - len = 0; - err = FALSE; - U16_APPEND (utf16, len, ARRAY_LENGTH (utf16), u, err); - if (err) - return 0; - - /* Normalise the codepoint using NFKD mode. */ - icu_err = U_ZERO_ERROR; - len = unorm_normalize (utf16, len, UNORM_NFKD, 0, normalized, ARRAY_LENGTH (normalized), &icu_err); - if (icu_err) - return 0; - - /* Convert the decomposed form from UTF-16 to UTF-32. */ - icu_err = U_ZERO_ERROR; - u_strToUTF32 ((UChar32*) decomposed, HB_UNICODE_MAX_DECOMPOSITION_LEN, &utf32_len, normalized, len, &icu_err); - if (icu_err) - return 0; - - return utf32_len; -} - - -hb_unicode_funcs_t * -hb_icu_get_unicode_funcs (void) -{ - static const hb_unicode_funcs_t _hb_icu_unicode_funcs = { - HB_OBJECT_HEADER_STATIC, - - NULL, /* parent */ - true, /* immutable */ - { -#define HB_UNICODE_FUNC_IMPLEMENT(name) hb_icu_unicode_##name, - HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS -#undef HB_UNICODE_FUNC_IMPLEMENT - } - }; - -#if U_ICU_VERSION_MAJOR_NUM >= 49 - if (!hb_atomic_ptr_get (&normalizer)) { - UErrorCode icu_err = U_ZERO_ERROR; - /* We ignore failure in getNFCInstace(). */ - hb_atomic_ptr_cmpexch (&normalizer, NULL, unorm2_getNFCInstance (&icu_err)); - } -#endif - return const_cast<hb_unicode_funcs_t *> (&_hb_icu_unicode_funcs); -} - - |