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//
// GTMNSDictionary+URLArguments.m
//
// Copyright 2006-2008 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy
// of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
//
#import "GTMNSDictionary+URLArguments.h"
#import "GTMNSString+URLArguments.h"
#import "GTMMethodCheck.h"
#import "GTMDefines.h"
#pragma clang diagnostic push
// Ignore all of the deprecation warnings for GTMNSString+URLArguments
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
@implementation NSDictionary (GTMNSDictionaryURLArgumentsAdditions)
GTM_METHOD_CHECK(NSString, gtm_stringByEscapingForURLArgument);
GTM_METHOD_CHECK(NSString, gtm_stringByUnescapingFromURLArgument);
+ (NSDictionary *)gtm_dictionaryWithHttpArgumentsString:(NSString *)argString {
NSMutableDictionary* ret = [NSMutableDictionary dictionary];
NSArray* components = [argString componentsSeparatedByString:@"&"];
NSString* component;
// Use reverse order so that the first occurrence of a key replaces
// those subsequent.
for (component in [components reverseObjectEnumerator]) {
if ([component length] == 0)
continue;
NSRange pos = [component rangeOfString:@"="];
NSString *key;
NSString *val;
if (pos.location == NSNotFound) {
key = [component gtm_stringByUnescapingFromURLArgument];
val = @"";
} else {
key = [[component substringToIndex:pos.location]
gtm_stringByUnescapingFromURLArgument];
val = [[component substringFromIndex:pos.location + pos.length]
gtm_stringByUnescapingFromURLArgument];
}
// gtm_stringByUnescapingFromURLArgument returns nil on invalid UTF8
// and NSMutableDictionary raises an exception when passed nil values.
if (!key) key = @"";
if (!val) val = @"";
[ret setObject:val forKey:key];
}
return ret;
}
- (NSString *)gtm_httpArgumentsString {
NSMutableArray* arguments = [NSMutableArray arrayWithCapacity:[self count]];
NSString* key;
for (key in self) {
[arguments addObject:[NSString stringWithFormat:@"%@=%@",
[key gtm_stringByEscapingForURLArgument],
[[[self objectForKey:key] description] gtm_stringByEscapingForURLArgument]]];
}
return [arguments componentsJoinedByString:@"&"];
}
@end
#pragma clang diagnostic pop
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