/* | |
* Copyright (C) 2006 Lars Knoll <lars@trolltech.com> | |
* Copyright (C) 2007 Apple Inc. All rights reserved. | |
* | |
* This library is free software; you can redistribute it and/or | |
* modify it under the terms of the GNU Library General Public | |
* License as published by the Free Software Foundation; either | |
* version 2 of the License, or (at your option) any later version. | |
* | |
* 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 | |
* Library General Public License for more details. | |
* | |
* You should have received a copy of the GNU Library General Public License | |
* along with this library; see the file COPYING.LIB. If not, write to | |
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
* Boston, MA 02110-1301, USA. | |
* | |
*/ | |
#ifndef TextBreakIterator_h | |
#define TextBreakIterator_h | |
#include <wtf/unicode/Unicode.h> | |
namespace WebCore { | |
class TextBreakIterator; | |
// Note: The returned iterator is good only until you get another iterator. | |
// Iterates over "extended grapheme clusters", as defined in UAX #29. | |
// Note that platform implementations may be less sophisticated - e.g. ICU prior to | |
// version 4.0 only supports "legacy grapheme clusters". | |
// Use this for general text processing, e.g. string truncation. | |
TextBreakIterator* characterBreakIterator(const UChar*, int length); | |
// This is similar to character break iterator in most cases, but is subject to | |
// platform UI conventions. One notable example where this can be different | |
// from character break iterator is Thai prepend characters, see bug 24342. | |
// Use this for insertion point and selection manipulations. | |
TextBreakIterator* cursorMovementIterator(const UChar*, int length); | |
TextBreakIterator* wordBreakIterator(const UChar*, int length); | |
TextBreakIterator* lineBreakIterator(const UChar*, int length); | |
TextBreakIterator* sentenceBreakIterator(const UChar*, int length); | |
int textBreakFirst(TextBreakIterator*); | |
int textBreakLast(TextBreakIterator*); | |
int textBreakNext(TextBreakIterator*); | |
int textBreakPrevious(TextBreakIterator*); | |
int textBreakCurrent(TextBreakIterator*); | |
int textBreakPreceding(TextBreakIterator*, int); | |
int textBreakFollowing(TextBreakIterator*, int); | |
bool isTextBreak(TextBreakIterator*, int); | |
const int TextBreakDone = -1; | |
} | |
#endif |