1/* 2 * Copyright (C) 2005, 2007, 2008, 2011 Apple 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 INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#import "config.h" 27#import "WebNSAttributedStringExtras.h" 28 29#if PLATFORM(IOS) 30enum { 31 NSAttachmentCharacter = 0xfffc /* To denote attachments. */ 32}; 33#endif 34 35namespace WebCore { 36 37NSAttributedString *attributedStringByStrippingAttachmentCharacters(NSAttributedString *attributedString) 38{ 39 NSRange attachmentRange; 40 NSString *originalString = [attributedString string]; 41 static NSString *attachmentCharString = nil; 42 43 if (!attachmentCharString) { 44 unichar chars[2]; 45 if (!attachmentCharString) { 46 chars[0] = NSAttachmentCharacter; 47 chars[1] = 0; 48 attachmentCharString = [[NSString alloc] initWithCharacters:chars length:1]; 49 } 50 } 51 52 attachmentRange = [originalString rangeOfString:attachmentCharString]; 53 if (attachmentRange.location != NSNotFound && attachmentRange.length > 0) { 54 NSMutableAttributedString *newAttributedString = [[attributedString mutableCopyWithZone:NULL] autorelease]; 55 56 while (attachmentRange.location != NSNotFound && attachmentRange.length > 0) { 57 [newAttributedString replaceCharactersInRange:attachmentRange withString:@""]; 58 attachmentRange = [[newAttributedString string] rangeOfString:attachmentCharString]; 59 } 60 return newAttributedString; 61 } 62 63 return attributedString; 64} 65 66} 67