1/*
2 * Copyright (C) 2004, 2006 Apple Computer, Inc.  All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#import "config.h"
27#import "TextBoundaries.h"
28
29using namespace WTF::Unicode;
30
31namespace WebCore {
32
33void findWordBoundary(const UChar* chars, int len, int position, int* start, int* end)
34{
35    NSString* string = [[NSString alloc] initWithCharactersNoCopy:const_cast<unichar*>(chars)
36        length:len freeWhenDone:NO];
37    NSAttributedString* attr = [[NSAttributedString alloc] initWithString:string];
38    NSRange range = [attr doubleClickAtIndex:(position >= len) ? len - 1 : position];
39    [attr release];
40    [string release];
41    *start = range.location;
42    *end = range.location + range.length;
43}
44
45int findNextWordFromIndex(const UChar* chars, int len, int position, bool forward)
46{
47    NSString* string = [[NSString alloc] initWithCharactersNoCopy:const_cast<unichar*>(chars)
48        length:len freeWhenDone:NO];
49    NSAttributedString* attr = [[NSAttributedString alloc] initWithString:string];
50    int result = [attr nextWordFromIndex:position forward:forward];
51    [attr release];
52    [string release];
53    return result;
54}
55
56}
57