1*449ab281SAndrew Rist /**************************************************************
2cdf0e10cSrcweir *
3*449ab281SAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one
4*449ab281SAndrew Rist * or more contributor license agreements. See the NOTICE file
5*449ab281SAndrew Rist * distributed with this work for additional information
6*449ab281SAndrew Rist * regarding copyright ownership. The ASF licenses this file
7*449ab281SAndrew Rist * to you under the Apache License, Version 2.0 (the
8*449ab281SAndrew Rist * "License"); you may not use this file except in compliance
9*449ab281SAndrew Rist * with the License. You may obtain a copy of the License at
10*449ab281SAndrew Rist *
11*449ab281SAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0
12*449ab281SAndrew Rist *
13*449ab281SAndrew Rist * Unless required by applicable law or agreed to in writing,
14*449ab281SAndrew Rist * software distributed under the License is distributed on an
15*449ab281SAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16*449ab281SAndrew Rist * KIND, either express or implied. See the License for the
17*449ab281SAndrew Rist * specific language governing permissions and limitations
18*449ab281SAndrew Rist * under the License.
19*449ab281SAndrew Rist *
20*449ab281SAndrew Rist *************************************************************/
21*449ab281SAndrew Rist
22*449ab281SAndrew Rist
23cdf0e10cSrcweir
24cdf0e10cSrcweir // MARKER(update_precomp.py): autogen include statement, do not remove
25cdf0e10cSrcweir #include "precompiled_i18npool.hxx"
26cdf0e10cSrcweir
27cdf0e10cSrcweir #include <com/sun/star/i18n/CharacterIteratorMode.hpp>
28cdf0e10cSrcweir #include <breakiterator_ctl.hxx>
29cdf0e10cSrcweir
30cdf0e10cSrcweir #include <string.h> // for memset
31cdf0e10cSrcweir
32cdf0e10cSrcweir using namespace ::com::sun::star::uno;
33cdf0e10cSrcweir using namespace ::com::sun::star::lang;
34cdf0e10cSrcweir using namespace ::rtl;
35cdf0e10cSrcweir
36cdf0e10cSrcweir namespace com { namespace sun { namespace star { namespace i18n {
37cdf0e10cSrcweir
38cdf0e10cSrcweir /**
39cdf0e10cSrcweir * Constructor.
40cdf0e10cSrcweir */
BreakIterator_CTL()41cdf0e10cSrcweir BreakIterator_CTL::BreakIterator_CTL() :
42cdf0e10cSrcweir cachedText(),
43cdf0e10cSrcweir nextCellIndex( NULL ),
44cdf0e10cSrcweir previousCellIndex( NULL ),
45cdf0e10cSrcweir cellIndexSize( 512 )
46cdf0e10cSrcweir {
47cdf0e10cSrcweir cBreakIterator = "com.sun.star.i18n.BreakIterator_CTL";
48cdf0e10cSrcweir // to improve performance, alloc big enough memory in construct.
49cdf0e10cSrcweir nextCellIndex = (sal_Int32*) calloc(cellIndexSize, sizeof(sal_Int32));
50cdf0e10cSrcweir previousCellIndex = (sal_Int32*) calloc(cellIndexSize, sizeof(sal_Int32));
51cdf0e10cSrcweir memset(nextCellIndex, 0, cellIndexSize * sizeof(sal_Int32));
52cdf0e10cSrcweir }
53cdf0e10cSrcweir
54cdf0e10cSrcweir /**
55cdf0e10cSrcweir * Deconstructor.
56cdf0e10cSrcweir */
~BreakIterator_CTL()57cdf0e10cSrcweir BreakIterator_CTL::~BreakIterator_CTL()
58cdf0e10cSrcweir {
59cdf0e10cSrcweir free(nextCellIndex);
60cdf0e10cSrcweir free(previousCellIndex);
61cdf0e10cSrcweir }
62cdf0e10cSrcweir
previousCharacters(const OUString & Text,sal_Int32 nStartPos,const lang::Locale & rLocale,sal_Int16 nCharacterIteratorMode,sal_Int32 nCount,sal_Int32 & nDone)63cdf0e10cSrcweir sal_Int32 SAL_CALL BreakIterator_CTL::previousCharacters( const OUString& Text,
64cdf0e10cSrcweir sal_Int32 nStartPos, const lang::Locale& rLocale,
65cdf0e10cSrcweir sal_Int16 nCharacterIteratorMode, sal_Int32 nCount, sal_Int32& nDone )
66cdf0e10cSrcweir throw(RuntimeException)
67cdf0e10cSrcweir {
68cdf0e10cSrcweir if (nCharacterIteratorMode == CharacterIteratorMode::SKIPCELL ) {
69cdf0e10cSrcweir nDone = 0;
70cdf0e10cSrcweir if (nStartPos > 0) { // for others to skip cell.
71cdf0e10cSrcweir makeIndex(Text, nStartPos);
72cdf0e10cSrcweir
73cdf0e10cSrcweir if (nextCellIndex[nStartPos-1] == 0) // not a CTL character
74cdf0e10cSrcweir return BreakIterator_Unicode::previousCharacters(Text, nStartPos, rLocale,
75cdf0e10cSrcweir nCharacterIteratorMode, nCount, nDone);
76cdf0e10cSrcweir else while (nCount > 0 && nextCellIndex[nStartPos - 1] > 0) {
77cdf0e10cSrcweir nCount--; nDone++;
78cdf0e10cSrcweir nStartPos = previousCellIndex[nStartPos - 1];
79cdf0e10cSrcweir }
80cdf0e10cSrcweir } else
81cdf0e10cSrcweir nStartPos = 0;
82cdf0e10cSrcweir } else { // for BS to delete one char.
83cdf0e10cSrcweir nDone = (nStartPos > nCount) ? nCount : nStartPos;
84cdf0e10cSrcweir nStartPos -= nDone;
85cdf0e10cSrcweir }
86cdf0e10cSrcweir
87cdf0e10cSrcweir return nStartPos;
88cdf0e10cSrcweir }
89cdf0e10cSrcweir
nextCharacters(const OUString & Text,sal_Int32 nStartPos,const lang::Locale & rLocale,sal_Int16 nCharacterIteratorMode,sal_Int32 nCount,sal_Int32 & nDone)90cdf0e10cSrcweir sal_Int32 SAL_CALL BreakIterator_CTL::nextCharacters(const OUString& Text,
91cdf0e10cSrcweir sal_Int32 nStartPos, const lang::Locale& rLocale,
92cdf0e10cSrcweir sal_Int16 nCharacterIteratorMode, sal_Int32 nCount, sal_Int32& nDone)
93cdf0e10cSrcweir throw(RuntimeException)
94cdf0e10cSrcweir {
95cdf0e10cSrcweir sal_Int32 len = Text.getLength();
96cdf0e10cSrcweir if (nCharacterIteratorMode == CharacterIteratorMode::SKIPCELL ) {
97cdf0e10cSrcweir nDone = 0;
98cdf0e10cSrcweir if (nStartPos < len) {
99cdf0e10cSrcweir makeIndex(Text, nStartPos);
100cdf0e10cSrcweir
101cdf0e10cSrcweir if (nextCellIndex[nStartPos] == 0) // not a CTL character
102cdf0e10cSrcweir return BreakIterator_Unicode::nextCharacters(Text, nStartPos, rLocale,
103cdf0e10cSrcweir nCharacterIteratorMode, nCount, nDone);
104cdf0e10cSrcweir else while (nCount > 0 && nextCellIndex[nStartPos] > 0) {
105cdf0e10cSrcweir nCount--; nDone++;
106cdf0e10cSrcweir nStartPos = nextCellIndex[nStartPos];
107cdf0e10cSrcweir }
108cdf0e10cSrcweir } else
109cdf0e10cSrcweir nStartPos = len;
110cdf0e10cSrcweir } else {
111cdf0e10cSrcweir nDone = (len - nStartPos > nCount) ? nCount : len - nStartPos;
112cdf0e10cSrcweir nStartPos += nDone;
113cdf0e10cSrcweir }
114cdf0e10cSrcweir
115cdf0e10cSrcweir return nStartPos;
116cdf0e10cSrcweir }
117cdf0e10cSrcweir
118cdf0e10cSrcweir // This method should be overwritten by derived language specific class.
makeIndex(const OUString &,sal_Int32)119cdf0e10cSrcweir void SAL_CALL BreakIterator_CTL::makeIndex(const OUString& /*text*/, sal_Int32 /*pos*/)
120cdf0e10cSrcweir throw(RuntimeException)
121cdf0e10cSrcweir {
122cdf0e10cSrcweir throw RuntimeException();
123cdf0e10cSrcweir }
124cdf0e10cSrcweir
125cdf0e10cSrcweir // Make sure line is broken on cell boundary if we implement cell iterator.
getLineBreak(const OUString & Text,sal_Int32 nStartPos,const lang::Locale & rLocale,sal_Int32 nMinBreakPos,const LineBreakHyphenationOptions & hOptions,const LineBreakUserOptions & bOptions)126cdf0e10cSrcweir LineBreakResults SAL_CALL BreakIterator_CTL::getLineBreak(
127cdf0e10cSrcweir const OUString& Text, sal_Int32 nStartPos,
128cdf0e10cSrcweir const lang::Locale& rLocale, sal_Int32 nMinBreakPos,
129cdf0e10cSrcweir const LineBreakHyphenationOptions& hOptions,
130cdf0e10cSrcweir const LineBreakUserOptions& bOptions ) throw(RuntimeException)
131cdf0e10cSrcweir {
132cdf0e10cSrcweir LineBreakResults lbr = BreakIterator_Unicode::getLineBreak(Text, nStartPos,
133cdf0e10cSrcweir rLocale, nMinBreakPos, hOptions, bOptions );
134cdf0e10cSrcweir if (lbr.breakIndex < Text.getLength()) {
135cdf0e10cSrcweir makeIndex(Text, lbr.breakIndex);
136cdf0e10cSrcweir lbr.breakIndex = previousCellIndex[ lbr.breakIndex ];
137cdf0e10cSrcweir }
138cdf0e10cSrcweir return lbr;
139cdf0e10cSrcweir }
140cdf0e10cSrcweir
141cdf0e10cSrcweir } } } }
142