5 // Created by Christian Brunschen on 28/05/2008.
7 * Copyright 2008 ZXing authors
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
13 * http://www.apache.org/licenses/LICENSE-2.0
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
22 #import "NSString+HTML.h"
25 @implementation NSString (HTMLExtensions)
27 static NSDictionary *htmlEscapes = nil;
28 static NSDictionary *htmlUnescapes = nil;
30 + (NSDictionary *)htmlEscapes {
32 htmlEscapes = [[NSDictionary alloc] initWithObjectsAndKeys:
42 + (NSDictionary *)htmlUnescapes {
44 htmlUnescapes = [[NSDictionary alloc] initWithObjectsAndKeys:
54 static NSString *replaceAll(NSString *s, NSDictionary *replacements) {
55 for (NSString *key in replacements) {
56 NSString *replacement = [replacements objectForKey:key];
57 s = [s stringByReplacingOccurrencesOfString:key withString:replacement];
62 - (NSString *)htmlEscapedString {
63 return replaceAll(self, [[self class] htmlEscapes]);
66 - (NSString *)htmlUnescapedString {
67 return replaceAll(self, [[self class] htmlUnescapes]);