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 29 using namespace WTF::Unicode; 30 31 namespace WebCore { 32 33 void 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 45 int 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