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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.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_i18npool.hxx"
#include <assert.h>
#include <textconversion.hxx>
#include <com/sun/star/i18n/TextConversionType.hpp>
#include <com/sun/star/i18n/TextConversionOption.hpp>
#include <com/sun/star/linguistic2/ConversionDirection.hpp>
#include <com/sun/star/linguistic2/ConversionDictionaryType.hpp>
#include <i18nutil/x_rtl_ustring.h>
using namespace com::sun::star::lang;
using namespace com::sun::star::i18n;
using namespace com::sun::star::linguistic2;
using namespace com::sun::star::uno;
using namespace rtl;
namespace com { namespace sun { namespace star { namespace i18n {
TextConversion_zh::TextConversion_zh( const Reference < XMultiServiceFactory >& xMSF )
{
Reference < XInterface > xI;
xI = xMSF->createInstance(
OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.linguistic2.ConversionDictionaryList")));
if ( xI.is() )
xI->queryInterface( getCppuType((const Reference< XConversionDictionaryList>*)0) ) >>= xCDL;
implementationName = "com.sun.star.i18n.TextConversion_zh";
}
sal_Unicode SAL_CALL getOneCharConversion(sal_Unicode ch, const sal_Unicode* Data, const sal_uInt16* Index)
{
if (Data && Index) {
sal_Unicode address = Index[ch>>8];
if (address != 0xFFFF)
address = Data[address + (ch & 0xFF)];
return (address != 0xFFFF) ? address : ch;
} else {
return ch;
}
}
OUString SAL_CALL
TextConversion_zh::getCharConversion(const OUString& aText, sal_Int32 nStartPos, sal_Int32 nLength, sal_Bool toSChinese, sal_Int32 nConversionOptions)
{
const sal_Unicode *Data;
const sal_uInt16 *Index;
if (toSChinese) {
Data = ((const sal_Unicode* (*)())getFunctionBySymbol("getSTC_CharData_T2S"))();
Index = ((const sal_uInt16* (*)())getFunctionBySymbol("getSTC_CharIndex_T2S"))();
} else if (nConversionOptions & TextConversionOption::USE_CHARACTER_VARIANTS) {
Data = ((const sal_Unicode* (*)())getFunctionBySymbol("getSTC_CharData_S2V"))();
Index = ((const sal_uInt16* (*)())getFunctionBySymbol("getSTC_CharIndex_S2V"))();
} else {
Data = ((const sal_Unicode* (*)())getFunctionBySymbol("getSTC_CharData_S2T"))();
Index = ((const sal_uInt16* (*)())getFunctionBySymbol("getSTC_CharIndex_S2T"))();
}
rtl_uString * newStr = x_rtl_uString_new_WithLength( nLength ); // defined in x_rtl_ustring.h
for (sal_Int32 i = 0; i < nLength; i++)
newStr->buffer[i] =
getOneCharConversion(aText[nStartPos+i], Data, Index);
return OUString( newStr->buffer, nLength);
}
OUString SAL_CALL
TextConversion_zh::getWordConversion(const OUString& aText, sal_Int32 nStartPos, sal_Int32 nLength, sal_Bool toSChinese, sal_Int32 nConversionOptions, Sequence<sal_Int32>& offset)
{
sal_Int32 dictLen = 0;
sal_Int32 maxLen = 0;
const sal_uInt16 *index;
const sal_uInt16 *entry;
const sal_Unicode *charData;
const sal_uInt16 *charIndex;
sal_Bool one2one=sal_True;
const sal_Unicode *wordData = ((const sal_Unicode* (*)(sal_Int32&)) getFunctionBySymbol("getSTC_WordData"))(dictLen);
if (toSChinese) {
index = ((const sal_uInt16* (*)(sal_Int32&)) getFunctionBySymbol("getSTC_WordIndex_T2S"))(maxLen);
entry = ((const sal_uInt16* (*)()) getFunctionBySymbol("getSTC_WordEntry_T2S"))();
charData = ((const sal_Unicode* (*)()) getFunctionBySymbol("getSTC_CharData_T2S"))();
charIndex = ((const sal_uInt16* (*)()) getFunctionBySymbol("getSTC_CharIndex_T2S"))();
} else {
index = ((const sal_uInt16* (*)(sal_Int32&)) getFunctionBySymbol("getSTC_WordIndex_S2T"))(maxLen);
entry = ((const sal_uInt16* (*)()) getFunctionBySymbol("getSTC_WordEntry_S2T"))();
if (nConversionOptions & TextConversionOption::USE_CHARACTER_VARIANTS) {
charData = ((const sal_Unicode* (*)()) getFunctionBySymbol("getSTC_CharData_S2V"))();
charIndex = ((const sal_uInt16* (*)()) getFunctionBySymbol("getSTC_CharIndex_S2V"))();
} else {
charData = ((const sal_Unicode* (*)()) getFunctionBySymbol("getSTC_CharData_S2T"))();
charIndex = ((const sal_uInt16* (*)()) getFunctionBySymbol("getSTC_CharIndex_S2T"))();
}
}
if ((!wordData || !index || !entry) && !xCDL.is()) // no word mapping defined, do char2char conversion.
return getCharConversion(aText, nStartPos, nLength, toSChinese, nConversionOptions);
rtl_uString * newStr = x_rtl_uString_new_WithLength( nLength * 2 ); // defined in x_rtl_ustring.h
sal_Int32 currPos = 0, count = 0;
while (currPos < nLength) {
sal_Int32 len = nLength - currPos;
sal_Bool found = sal_False;
if (len > maxLen)
len = maxLen;
for (; len > 0 && ! found; len--) {
OUString word = aText.copy(nStartPos + currPos, len);
sal_Int32 current = 0;
// user dictionary
if (xCDL.is()) {
Sequence < OUString > conversions;
try {
conversions = xCDL->queryConversions(word, 0, len,
aLocale, ConversionDictionaryType::SCHINESE_TCHINESE,
/*toSChinese ?*/ ConversionDirection_FROM_LEFT /*: ConversionDirection_FROM_RIGHT*/,
nConversionOptions);
}
catch ( NoSupportException & ) {
// clear reference (when there is no user dictionary) in order
// to not always have to catch this exception again
// in further calls. (save time)
xCDL = 0;
}
catch (...) {
// catch all other exceptions to allow
// querying the system dictionary in the next line
}
if (conversions.getLength() > 0) {
if (offset.getLength() > 0) {
if (word.getLength() != conversions[0].getLength())
one2one=sal_False;
while (current < conversions[0].getLength()) {
offset[count] = nStartPos + currPos + (current *
word.getLength() / conversions[0].getLength());
newStr->buffer[count++] = conversions[0][current++];
}
// offset[count-1] = nStartPos + currPos + word.getLength() - 1;
} else {
while (current < conversions[0].getLength())
newStr->buffer[count++] = conversions[0][current++];
}
currPos += word.getLength();
found = sal_True;
}
}
if (!found && index[len+1] - index[len] > 0) {
sal_Int32 bottom = (sal_Int32) index[len];
sal_Int32 top = (sal_Int32) index[len+1] - 1;
while (bottom <= top && !found) {
current = (top + bottom) / 2;
const sal_Int32 result = word.compareTo(wordData + entry[current]);
if (result < 0)
top = current - 1;
else if (result > 0)
bottom = current + 1;
else {
if (toSChinese) // Traditionary/Simplified conversion,
for (current = entry[current]-1; current > 0 && wordData[current-1]; current--) ;
else // Simplified/Traditionary conversion, forwards search for next word
current = entry[current] + word.getLength() + 1;
sal_Int32 start=current;
if (offset.getLength() > 0) {
if (word.getLength() != OUString(&wordData[current]).getLength())
one2one=sal_False;
sal_Int32 convertedLength=OUString(&wordData[current]).getLength();
while (wordData[current]) {
offset[count]=nStartPos + currPos + ((current-start) *
word.getLength() / convertedLength);
newStr->buffer[count++] = wordData[current++];
}
// offset[count-1]=nStartPos + currPos + word.getLength() - 1;
} else {
while (wordData[current])
newStr->buffer[count++] = wordData[current++];
}
currPos += word.getLength();
found = sal_True;
}
}
}
}
if (!found) {
if (offset.getLength() > 0)
offset[count]=nStartPos+currPos;
newStr->buffer[count++] =
getOneCharConversion(aText[nStartPos+currPos], charData, charIndex);
currPos++;
}
}
if (offset.getLength() > 0)
offset.realloc(one2one ? 0 : count);
return OUString( newStr->buffer, count);
}
TextConversionResult SAL_CALL
TextConversion_zh::getConversions( const OUString& aText, sal_Int32 nStartPos, sal_Int32 nLength,
const Locale& rLocale, sal_Int16 nConversionType, sal_Int32 nConversionOptions)
throw( RuntimeException, IllegalArgumentException, NoSupportException )
{
TextConversionResult result;
result.Candidates.realloc(1);
result.Candidates[0] = getConversion( aText, nStartPos, nLength, rLocale, nConversionType, nConversionOptions);
result.Boundary.startPos = nStartPos;
result.Boundary.endPos = nStartPos + nLength;
return result;
}
OUString SAL_CALL
TextConversion_zh::getConversion( const OUString& aText, sal_Int32 nStartPos, sal_Int32 nLength,
const Locale& rLocale, sal_Int16 nConversionType, sal_Int32 nConversionOptions)
throw( RuntimeException, IllegalArgumentException, NoSupportException )
{
if (rLocale.Language.equalsAscii("zh") &&
( nConversionType == TextConversionType::TO_SCHINESE ||
nConversionType == TextConversionType::TO_TCHINESE) ) {
aLocale=rLocale;
sal_Bool toSChinese = nConversionType == TextConversionType::TO_SCHINESE;
if (nConversionOptions & TextConversionOption::CHARACTER_BY_CHARACTER)
// char to char dictionary
return getCharConversion(aText, nStartPos, nLength, toSChinese, nConversionOptions);
else {
Sequence <sal_Int32> offset;
// word to word dictionary
return getWordConversion(aText, nStartPos, nLength, toSChinese, nConversionOptions, offset);
}
} else
throw NoSupportException(); // Conversion type is not supported in this service.
}
OUString SAL_CALL
TextConversion_zh::getConversionWithOffset( const OUString& aText, sal_Int32 nStartPos, sal_Int32 nLength,
const Locale& rLocale, sal_Int16 nConversionType, sal_Int32 nConversionOptions, Sequence<sal_Int32>& offset)
throw( RuntimeException, IllegalArgumentException, NoSupportException )
{
if (rLocale.Language.equalsAscii("zh") &&
( nConversionType == TextConversionType::TO_SCHINESE ||
nConversionType == TextConversionType::TO_TCHINESE) ) {
aLocale=rLocale;
sal_Bool toSChinese = nConversionType == TextConversionType::TO_SCHINESE;
if (nConversionOptions & TextConversionOption::CHARACTER_BY_CHARACTER) {
offset.realloc(0);
// char to char dictionary
return getCharConversion(aText, nStartPos, nLength, toSChinese, nConversionOptions);
} else {
if (offset.getLength() < 2*nLength)
offset.realloc(2*nLength);
// word to word dictionary
return getWordConversion(aText, nStartPos, nLength, toSChinese, nConversionOptions, offset);
}
} else
throw NoSupportException(); // Conversion type is not supported in this service.
}
sal_Bool SAL_CALL
TextConversion_zh::interactiveConversion( const Locale& /*rLocale*/, sal_Int16 /*nTextConversionType*/, sal_Int32 /*nTextConversionOptions*/ )
throw( RuntimeException, IllegalArgumentException, NoSupportException )
{
return sal_False;
}
} } } }
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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