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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#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.equalsAsciiL(RTL_CONSTASCII_STRINGPARAM(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: */
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