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/*************************************************************************
*
* $RCSfile: casefolding.cxx,v $
*
* $Revision: 1.2 $
*
* last change: $Author: vg $ $Date: 2003-04-24 12:26:02 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#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_0049[] = {{0, 2, 0x0069, 0x0307, 0},{0, 1, 0x0131, 0, 0},{0, 1, 0x0069, 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_0069[] = {{0, 1, 0x0130, 0, 0},{0, 1, 0x0049, 0, 0}};
#define langIs(lang) (aLocale.Language.compareToAscii(lang) == 0)
// 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))
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 0x0069:
return (langIs("tr") || langIs("az")) ? mapping_0069[0] : mapping_0069[1];
case 0x0049: return langIs("lt") ? mapping_0049[0] :
(langIs("tr") || langIs("az")) ? mapping_0049[1] : mapping_0049[2];
case 0x004a: return langIs("lt") ? mapping_004a[0] : mapping_004a[1];
case 0x012e: return langIs("lt") ? 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];
}
}
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)))
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)
{
sal_Unicode c;
if (moduleLoaded & TransliterationModules_IGNORE_CASE) {
if (e.current >= e.element.nmap && idx < len ) {
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;
}
} } } }
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