author | chetan.kapoor@v800025.ad-sfpd.intra |
Tue, 27 Oct 2009 10:58:40 +0000 | |
branch | CompilerCompatibility |
changeset 25 | 9d87bae3dc1b |
parent 16 | a359256acfc6 |
child 68 | 92a765b5b3e7 |
permissions | -rw-r--r-- |
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/* |
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* This file is part of the DOM implementation for KDE. |
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* |
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* Copyright (C) 2006 Lars Knoll <lars@trolltech.com> |
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* Copyright (C) 2007 Nokia Inc. |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Library General Public |
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* License as published by the Free Software Foundation; either |
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* version 2 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Library General Public License for more details. |
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* |
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* You should have received a copy of the GNU Library General Public License |
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* along with this library; see the file COPYING.LIB. If not, write to |
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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* Boston, MA 02111-1307, USA. |
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* |
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*/ |
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|
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#include "TextBreakIteratorSymbian.h" |
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#include "TextBreakIterator.h" |
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#include <e32cmn.h> |
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#include <KJS/ustring.h> |
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|
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namespace WebCore { |
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|
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class TextBreakIterator |
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{ |
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public: |
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virtual int first() = 0; |
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virtual int next() = 0; |
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virtual int previous() = 0; |
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inline int following(int pos) { |
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currentPos = pos; |
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return next(); |
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} |
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inline int preceding(int pos) { |
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currentPos = pos; |
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return previous(); |
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} |
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int currentPos; |
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const UChar *string; |
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int length; |
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}; |
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|
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class WordBreakIteratorSymbian : public TextBreakIterator |
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{ |
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public: |
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virtual int first(); |
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virtual int next(); |
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virtual int previous(); |
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}; |
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class CharBreakIteratorSymbian : public TextBreakIterator |
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{ |
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public: |
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virtual int first(); |
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virtual int next(); |
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virtual int previous(); |
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}; |
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|
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class LineBreakIteratorSymbian : public TextBreakIterator |
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{ |
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public: |
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virtual int first(); |
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virtual int next(); |
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virtual int previous(); |
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}; |
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|
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int WordBreakIteratorSymbian::first() { |
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currentPos = 0; |
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return currentPos; |
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} |
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|
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int WordBreakIteratorSymbian::next() { |
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if (currentPos == length) { |
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currentPos = -1; |
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return currentPos; |
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} |
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bool haveSpace = false; |
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while (currentPos < length) { |
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if (haveSpace && !TChar(string[currentPos]).IsSpace()) |
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break; |
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if (TChar(string[currentPos]).IsSpace()) |
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haveSpace = true; |
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++currentPos; |
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} |
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return currentPos; |
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} |
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|
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int WordBreakIteratorSymbian::previous() { |
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if (currentPos == 0) { |
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currentPos = -1; |
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return currentPos; |
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} |
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bool haveSpace = false; |
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while (currentPos > 0) { |
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if (haveSpace && !TChar(string[currentPos]).IsSpace()) |
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break; |
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if (TChar(string[currentPos]).IsSpace()) |
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haveSpace = true; |
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--currentPos; |
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} |
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return currentPos; |
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} |
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|
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int CharBreakIteratorSymbian::first() { |
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currentPos = 0; |
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return currentPos; |
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114 |
} |
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115 |
|
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116 |
int CharBreakIteratorSymbian::next() { |
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if (currentPos == length) |
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return -1; |
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119 |
|
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// FIXME: symbian doesn't have Grapheme Cluster support |
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// currentPos = layout.nextCursorPosition(currentPos); |
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122 |
|
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currentPos++; |
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124 |
return currentPos; |
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125 |
} |
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126 |
int CharBreakIteratorSymbian::previous() { |
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if (currentPos == 0) |
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128 |
return -1; |
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129 |
|
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130 |
// FIXME: symbian doesn't have Grapheme Cluster support |
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// currentPos = layout.nextCursorPosition(currentPos); |
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132 |
|
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currentPos--; |
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134 |
|
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//currentPos = layout.previousCursorPosition(currentPos); |
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136 |
return currentPos; |
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137 |
} |
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138 |
|
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int LineBreakIteratorSymbian::first() { |
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currentPos = 0; |
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141 |
return currentPos; |
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142 |
} |
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143 |
|
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int LineBreakIteratorSymbian::next() |
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145 |
{ |
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if (currentPos == length) |
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147 |
return -1; |
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148 |
|
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149 |
// Asian line breaking. Everywhere allowed except directly in front of a punctuation character. |
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int iRet = -1; |
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currentPos++; |
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unsigned char row = (KJS::UChar(string[currentPos])).high(); |
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153 |
|
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if ( row > 0x2d && row < 0xfb || row == 0x11 ) |
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iRet = currentPos; |
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156 |
else |
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iRet = -1; |
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158 |
|
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159 |
return iRet; |
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160 |
} |
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161 |
|
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int LineBreakIteratorSymbian::previous() |
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163 |
{ |
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//not implemented |
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165 |
return -1; |
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166 |
} |
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167 |
|
13 | 168 |
static WordBreakIteratorSymbian *wordIterator = 0; |
169 |
static CharBreakIteratorSymbian *charIterator = 0; |
|
170 |
static LineBreakIteratorSymbian *lineIterator = 0; |
|
16
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171 |
void cleanupIterators() |
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172 |
{ |
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173 |
delete wordIterator; |
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wordIterator = NULL; |
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175 |
delete charIterator; |
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176 |
charIterator = NULL; |
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177 |
delete lineIterator; |
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lineIterator = NULL; |
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179 |
} |
0
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180 |
|
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181 |
TextBreakIterator* wordBreakIterator(const UChar* string, int length) |
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182 |
{ |
13 | 183 |
if (!wordIterator) |
184 |
wordIterator = new WordBreakIteratorSymbian; |
|
0
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185 |
|
13 | 186 |
wordIterator->string = string; |
187 |
wordIterator->length = length; |
|
188 |
wordIterator->currentPos = 0; |
|
0
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189 |
|
13 | 190 |
return wordIterator; |
0
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191 |
} |
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192 |
|
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193 |
TextBreakIterator* characterBreakIterator(const UChar* string, int length) |
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194 |
{ |
13 | 195 |
if (!charIterator) |
196 |
charIterator = new CharBreakIteratorSymbian; |
|
0
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197 |
|
13 | 198 |
charIterator->string = string; |
199 |
charIterator->length = length; |
|
200 |
charIterator->currentPos = 0; |
|
0
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201 |
|
13 | 202 |
return charIterator; |
0
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203 |
} |
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204 |
|
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205 |
TextBreakIterator* lineBreakIterator(const UChar* string, int length) |
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206 |
{ |
13 | 207 |
if (!lineIterator) |
208 |
lineIterator = new LineBreakIteratorSymbian; |
|
0
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|
209 |
|
13 | 210 |
lineIterator->string = string; |
211 |
lineIterator->length = length; |
|
212 |
lineIterator->currentPos = 0; |
|
0
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213 |
|
13 | 214 |
return lineIterator; |
0
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215 |
} |
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|
216 |
|
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217 |
TextBreakIterator* sentenceBreakIterator(const UChar*, int) |
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218 |
{ |
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219 |
// not yet implemented |
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220 |
return 0; |
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221 |
} |
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222 |
|
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223 |
|
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224 |
int textBreakFirst(TextBreakIterator* bi) |
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225 |
{ |
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226 |
return bi->first(); |
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227 |
} |
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228 |
|
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229 |
int textBreakNext(TextBreakIterator* bi) |
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230 |
{ |
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231 |
return bi->next(); |
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232 |
} |
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|
233 |
|
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|
234 |
int textBreakPreceding(TextBreakIterator* bi, int pos) |
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235 |
{ |
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236 |
return bi->preceding(pos); |
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237 |
} |
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|
238 |
|
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|
239 |
int textBreakFollowing(TextBreakIterator* bi, int pos) |
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|
240 |
{ |
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return bi->following(pos); |
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} |
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int textBreakCurrent(TextBreakIterator* bi) |
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{ |
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return bi->currentPos; |
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} |
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bool isTextBreak(TextBreakIterator*, int) |
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{ |
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return true; |
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} |
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} |
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