| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| // MARKER(update_precomp.py): autogen include statement, do not remove |
| #include "precompiled_i18npool.hxx" |
| |
| #include <com/sun/star/i18n/CharacterIteratorMode.hpp> |
| #include <breakiterator_ctl.hxx> |
| |
| #include <string.h> // for memset |
| |
| using namespace ::com::sun::star::uno; |
| using namespace ::com::sun::star::lang; |
| using namespace ::rtl; |
| |
| namespace com { namespace sun { namespace star { namespace i18n { |
| |
| /** |
| * Constructor. |
| */ |
| BreakIterator_CTL::BreakIterator_CTL() : |
| cachedText(), |
| nextCellIndex( NULL ), |
| previousCellIndex( NULL ), |
| cellIndexSize( 512 ) |
| { |
| cBreakIterator = "com.sun.star.i18n.BreakIterator_CTL"; |
| // to improve performance, alloc big enough memory in construct. |
| nextCellIndex = (sal_Int32*) calloc(cellIndexSize, sizeof(sal_Int32)); |
| previousCellIndex = (sal_Int32*) calloc(cellIndexSize, sizeof(sal_Int32)); |
| memset(nextCellIndex, 0, cellIndexSize * sizeof(sal_Int32)); |
| } |
| |
| /** |
| * Deconstructor. |
| */ |
| BreakIterator_CTL::~BreakIterator_CTL() |
| { |
| free(nextCellIndex); |
| free(previousCellIndex); |
| } |
| |
| sal_Int32 SAL_CALL BreakIterator_CTL::previousCharacters( const OUString& Text, |
| sal_Int32 nStartPos, const lang::Locale& rLocale, |
| sal_Int16 nCharacterIteratorMode, sal_Int32 nCount, sal_Int32& nDone ) |
| throw(RuntimeException) |
| { |
| if (nCharacterIteratorMode == CharacterIteratorMode::SKIPCELL ) { |
| nDone = 0; |
| if (nStartPos > 0) { // for others to skip cell. |
| makeIndex(Text, nStartPos); |
| |
| if (nextCellIndex[nStartPos-1] == 0) // not a CTL character |
| return BreakIterator_Unicode::previousCharacters(Text, nStartPos, rLocale, |
| nCharacterIteratorMode, nCount, nDone); |
| else while (nCount > 0 && nextCellIndex[nStartPos - 1] > 0) { |
| nCount--; nDone++; |
| nStartPos = previousCellIndex[nStartPos - 1]; |
| } |
| } else |
| nStartPos = 0; |
| } else { // for BS to delete one char. |
| nDone = (nStartPos > nCount) ? nCount : nStartPos; |
| nStartPos -= nDone; |
| } |
| |
| return nStartPos; |
| } |
| |
| sal_Int32 SAL_CALL BreakIterator_CTL::nextCharacters(const OUString& Text, |
| sal_Int32 nStartPos, const lang::Locale& rLocale, |
| sal_Int16 nCharacterIteratorMode, sal_Int32 nCount, sal_Int32& nDone) |
| throw(RuntimeException) |
| { |
| sal_Int32 len = Text.getLength(); |
| if (nCharacterIteratorMode == CharacterIteratorMode::SKIPCELL ) { |
| nDone = 0; |
| if (nStartPos < len) { |
| makeIndex(Text, nStartPos); |
| |
| if (nextCellIndex[nStartPos] == 0) // not a CTL character |
| return BreakIterator_Unicode::nextCharacters(Text, nStartPos, rLocale, |
| nCharacterIteratorMode, nCount, nDone); |
| else while (nCount > 0 && nextCellIndex[nStartPos] > 0) { |
| nCount--; nDone++; |
| nStartPos = nextCellIndex[nStartPos]; |
| } |
| } else |
| nStartPos = len; |
| } else { |
| nDone = (len - nStartPos > nCount) ? nCount : len - nStartPos; |
| nStartPos += nDone; |
| } |
| |
| return nStartPos; |
| } |
| |
| // This method should be overwritten by derived language specific class. |
| void SAL_CALL BreakIterator_CTL::makeIndex(const OUString& /*text*/, sal_Int32 /*pos*/) |
| throw(RuntimeException) |
| { |
| throw RuntimeException(); |
| } |
| |
| // Make sure line is broken on cell boundary if we implement cell iterator. |
| LineBreakResults SAL_CALL BreakIterator_CTL::getLineBreak( |
| const OUString& Text, sal_Int32 nStartPos, |
| const lang::Locale& rLocale, sal_Int32 nMinBreakPos, |
| const LineBreakHyphenationOptions& hOptions, |
| const LineBreakUserOptions& bOptions ) throw(RuntimeException) |
| { |
| LineBreakResults lbr = BreakIterator_Unicode::getLineBreak(Text, nStartPos, |
| rLocale, nMinBreakPos, hOptions, bOptions ); |
| if (lbr.breakIndex < Text.getLength()) { |
| makeIndex(Text, lbr.breakIndex); |
| lbr.breakIndex = previousCellIndex[ lbr.breakIndex ]; |
| } |
| return lbr; |
| } |
| |
| } } } } |