160 lines
7.4 KiB
C++
160 lines
7.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/*
|
|
* This file is part of the LibreOffice project.
|
|
*
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
*
|
|
* This file incorporates work covered by the following license notice:
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed
|
|
* with this work for additional information regarding copyright
|
|
* ownership. The ASF licenses this file to you under the Apache
|
|
* License, Version 2.0 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
|
|
*/
|
|
|
|
#include "i18nutil/casefolding.hxx"
|
|
#include "casefolding_data.h"
|
|
#include "i18nutil/widthfolding.hxx"
|
|
|
|
using namespace com::sun::star::lang;
|
|
using namespace com::sun::star::uno;
|
|
|
|
namespace com { namespace sun { namespace star { namespace i18n {
|
|
|
|
static Mapping mapping_03a3[] = {{0, 1, {0x03c2, 0, 0}},{0, 1, {0x03c3, 0, 0}}};
|
|
static Mapping mapping_0307[] = {{0, 0, {0, 0, 0}},{0, 1, {0x0307, 0, 0}}};
|
|
static Mapping mapping_004a[] = {{0, 2, {0x006a, 0x0307, 0}},{0, 1, {0x006a, 0, 0}}};
|
|
static Mapping mapping_012e[] = {{0, 2, {0x012f, 0x0307, 0}},{0, 1, {0x012f, 0, 0}}};
|
|
static Mapping mapping_00cc[] = {{0, 3, {0x0069, 0x0307, 0x0300}},{0, 1, {0x00ec, 0, 0}}};
|
|
static Mapping mapping_00cd[] = {{0, 3, {0x0069, 0x0307, 0x0301}},{0, 1, {0x00ed, 0, 0}}};
|
|
static Mapping mapping_0128[] = {{0, 3, {0x0069, 0x0307, 0x0303}},{0, 1, {0x0129, 0, 0}}};
|
|
static Mapping mapping_0049[] = {{0, 2, {0x0069, 0x0307, 0}},{0, 1, {0x0131, 0, 0}},{0, 1, {0x0069, 0, 0}}};
|
|
static Mapping mapping_0069[] = {{0, 1, {0x0130, 0, 0}},{0, 1, {0x0049, 0, 0}}};
|
|
static Mapping mapping_0130[] = {{0, 1, {0x0069, 0, 0}},{0, 1, {0x0130, 0, 0}}};
|
|
|
|
#define langIs(lang) (aLocale.Language == lang)
|
|
|
|
// only check simple case, there is more complicated case need to be checked.
|
|
#define type_i(ch) ((ch) == 0x0069 || (ch) == 0x006a)
|
|
|
|
#define cased_letter(ch) (CaseMappingIndex[(ch)>>8] >= 0 && (CaseMappingValue[(CaseMappingIndex[(ch)>>8] << 8) + ((ch)&0xff)].type & CasedLetter))
|
|
|
|
// for Lithuanian, condition to make explicit dot above when lowercasing capital I's and J's
|
|
// whenever there are more accents above.
|
|
#define accent_above(ch) (((ch) >= 0x0300 && (ch) <= 0x0314) || ((ch) >= 0x033D && (ch) <= 0x0344) || (ch) == 0x0346 || ((ch) >= 0x034A && (ch) <= 0x034C))
|
|
|
|
Mapping& casefolding::getConditionalValue(const sal_Unicode* str, sal_Int32 pos, sal_Int32 len, Locale& aLocale, sal_uInt8 nMappingType) throw (RuntimeException)
|
|
{
|
|
switch(str[pos]) {
|
|
case 0x03a3:
|
|
// final_sigma (not followed by cased and preceded by cased character)
|
|
// DOES NOT check ignorable sequence yet (more complicated implementation).
|
|
return !(pos < len && cased_letter(str[pos+1])) && (pos > 0 && cased_letter(str[pos-1])) ?
|
|
mapping_03a3[0] : mapping_03a3[1];
|
|
case 0x0307:
|
|
return (((nMappingType == MappingTypeLowerToUpper && langIs("lt")) ||
|
|
(nMappingType == MappingTypeUpperToLower && (langIs("tr") || langIs("az")))) &&
|
|
(pos > 0 && type_i(str[pos-1]))) ? // after_i
|
|
mapping_0307[0] : mapping_0307[1];
|
|
case 0x0130:
|
|
return (langIs("tr") || langIs("az")) ? mapping_0130[0] : mapping_0130[1];
|
|
case 0x0069:
|
|
return (langIs("tr") || langIs("az")) ? mapping_0069[0] : mapping_0069[1];
|
|
case 0x0049: return langIs("lt") && pos > len && accent_above(str[pos+1]) ? mapping_0049[0] :
|
|
(langIs("tr") || langIs("az")) ? mapping_0049[1] : mapping_0049[2];
|
|
case 0x004a: return langIs("lt") && pos > len && accent_above(str[pos+1]) ? mapping_004a[0] : mapping_004a[1];
|
|
case 0x012e: return langIs("lt") && pos > len && accent_above(str[pos+1]) ? mapping_012e[0] : mapping_012e[1];
|
|
case 0x00cc: return langIs("lt") ? mapping_00cc[0] : mapping_00cc[1];
|
|
case 0x00cd: return langIs("lt") ? mapping_00cd[0] : mapping_00cd[1];
|
|
case 0x0128: return langIs("lt") ? mapping_0128[0] : mapping_0128[1];
|
|
}
|
|
// Should not come here
|
|
throw RuntimeException();
|
|
}
|
|
|
|
Mapping& casefolding::getValue(const sal_Unicode* str, sal_Int32 pos, sal_Int32 len, Locale& aLocale, sal_uInt8 nMappingType) throw (RuntimeException)
|
|
{
|
|
static Mapping dummy = { 0, 1, { 0, 0, 0 } };
|
|
sal_Int16 address = CaseMappingIndex[str[pos] >> 8] << 8;
|
|
|
|
dummy.map[0] = str[pos];
|
|
|
|
if (address >= 0 && (CaseMappingValue[address += (str[pos] & 0xFF)].type & nMappingType)) {
|
|
sal_uInt8 type = CaseMappingValue[address].type;
|
|
if (type & ValueTypeNotValue) {
|
|
if (CaseMappingValue[address].value == 0)
|
|
return getConditionalValue(str, pos, len, aLocale, nMappingType);
|
|
else {
|
|
for (int map = CaseMappingValue[address].value;
|
|
map < CaseMappingValue[address].value + MaxCaseMappingExtras; map++) {
|
|
if (CaseMappingExtra[map].type & nMappingType) {
|
|
if (CaseMappingExtra[map].type & ValueTypeNotValue)
|
|
return getConditionalValue(str, pos, len, aLocale, nMappingType);
|
|
else
|
|
return CaseMappingExtra[map];
|
|
}
|
|
}
|
|
// Should not come here
|
|
throw RuntimeException();
|
|
}
|
|
} else
|
|
dummy.map[0] = CaseMappingValue[address].value;
|
|
}
|
|
return dummy;
|
|
}
|
|
|
|
inline sal_Bool SAL_CALL
|
|
is_ja_voice_sound_mark(sal_Unicode& current, sal_Unicode next)
|
|
{
|
|
sal_Unicode c = 0;
|
|
|
|
if ((next == 0x3099 || next == 0x309a) && ( (c = widthfolding::getCompositionChar(current, next)) != 0 ))
|
|
current = c;
|
|
return c != 0;
|
|
}
|
|
|
|
sal_Unicode casefolding::getNextChar(const sal_Unicode *str, sal_Int32& idx, sal_Int32 len, MappingElement& e, Locale& aLocale, sal_uInt8 nMappingType, TransliterationModules moduleLoaded) throw (RuntimeException)
|
|
{
|
|
if( idx >= len )
|
|
{
|
|
e = MappingElement();
|
|
return 0;
|
|
}
|
|
|
|
sal_Unicode c;
|
|
|
|
if (moduleLoaded & TransliterationModules_IGNORE_CASE) {
|
|
if( e.current >= e.element.nmap ) {
|
|
e.element = getValue(str, idx++, len, aLocale, nMappingType);
|
|
e.current = 0;
|
|
}
|
|
c = e.element.map[e.current++];
|
|
} else {
|
|
c = *(str + idx++);
|
|
}
|
|
|
|
if (moduleLoaded & TransliterationModules_IGNORE_KANA) {
|
|
if ((0x3040 <= c && c <= 0x3094) || (0x309d <= c && c <= 0x309f))
|
|
c += 0x60;
|
|
}
|
|
|
|
// composition: KA + voice-mark --> GA. see halfwidthToFullwidth.cxx for detail
|
|
if (moduleLoaded & TransliterationModules_IGNORE_WIDTH) {
|
|
static oneToOneMapping& half2fullTable = widthfolding::gethalf2fullTable();
|
|
c = half2fullTable[c];
|
|
if (0x3040 <= c && c <= 0x30ff && idx < len &&
|
|
is_ja_voice_sound_mark(c, half2fullTable[*(str + idx)]))
|
|
idx++;
|
|
}
|
|
|
|
return c;
|
|
}
|
|
|
|
} } } }
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|