1 /*
2 * Copyright (C) 2006 Zack Rusin <zack@kde.org>
3 *
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
16 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
22 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
23 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #include "config.h"
29
30 #include "TextBoundaries.h"
31 #include "NotImplemented.h"
32
33 #include <QString>
34 #include <QChar>
35
36 #include <QDebug>
37 #include <stdio.h>
38
39 #include <qtextboundaryfinder.h>
40
41 namespace WebCore {
42
findNextWordFromIndex(UChar const * buffer,int len,int position,bool forward)43 int findNextWordFromIndex(UChar const* buffer, int len, int position, bool forward)
44 {
45 QString str(reinterpret_cast<QChar const*>(buffer), len);
46 QTextBoundaryFinder iterator(QTextBoundaryFinder::Word, str);
47 iterator.setPosition(position >= len ? len - 1 : position);
48 if (forward) {
49 int pos = iterator.toNextBoundary();
50 while (pos > 0) {
51 if (QChar(buffer[pos-1]).isLetterOrNumber())
52 return pos;
53 pos = iterator.toNextBoundary();
54 }
55 return len;
56 } else {
57 int pos = iterator.toPreviousBoundary();
58 while (pos > 0) {
59 if (QChar(buffer[pos]).isLetterOrNumber())
60 return pos;
61 pos = iterator.toPreviousBoundary();
62 }
63 return 0;
64 }
65 }
66
findWordBoundary(UChar const * buffer,int len,int position,int * start,int * end)67 void findWordBoundary(UChar const* buffer, int len, int position, int* start, int* end)
68 {
69 QString str(reinterpret_cast<QChar const*>(buffer), len);
70 QTextBoundaryFinder iterator(QTextBoundaryFinder::Word, str);
71 iterator.setPosition(position);
72 *start = position > 0 ? iterator.toPreviousBoundary() : 0;
73 *end = position == len ? len : iterator.toNextBoundary();
74 }
75
76 }
77
78