TextBoundaries.mm revision 8e35f3cfc7fba1d1c829dc557ebad6409cbe16a2
18e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project/* 28e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Copyright (C) 2004, 2006 Apple Computer, Inc. All rights reserved. 38e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 48e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Redistribution and use in source and binary forms, with or without 58e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * modification, are permitted provided that the following conditions 68e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * are met: 78e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 1. Redistributions of source code must retain the above copyright 88e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer. 98e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer in the 118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * documentation and/or other materials provided with the distribution. 128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project */ 258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#import "config.h" 278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#import "TextBoundaries.h" 288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectnamespace WebCore { 308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid findWordBoundary(const UChar* chars, int len, int position, int* start, int* end) 328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project NSString* string = [[NSString alloc] initWithCharactersNoCopy:const_cast<unichar*>(chars) 348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project length:len freeWhenDone:NO]; 358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project NSAttributedString* attr = [[NSAttributedString alloc] initWithString:string]; 368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project NSRange range = [attr doubleClickAtIndex:(position >= len) ? len - 1 : position]; 378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project [attr release]; 388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project [string release]; 398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project *start = range.location; 408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project *end = range.location + range.length; 418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectint findNextWordFromIndex(const UChar* chars, int len, int position, bool forward) 448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project NSString* string = [[NSString alloc] initWithCharactersNoCopy:const_cast<unichar*>(chars) 468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project length:len freeWhenDone:NO]; 478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project NSAttributedString* attr = [[NSAttributedString alloc] initWithString:string]; 488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int result = [attr nextWordFromIndex:position forward:forward]; 498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project [attr release]; 508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project [string release]; 518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return result; 528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 55