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GTLUtilities.h
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GTLUtilities.h
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/* Copyright (c) 2011 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 <Foundation/Foundation.h>
#ifndef SKIP_GTL_DEFINES
#import "GTLDefines.h"
#endif
// helper functions for implementing isEqual:
BOOL GTL_AreEqualOrBothNil(id obj1, id obj2);
BOOL GTL_AreBoolsEqual(BOOL b1, BOOL b2);
// Helper to ensure a number is a number.
//
// The GoogleAPI servers will send numbers >53 bits as strings to avoid
// bugs in some JavaScript implementations. Work around this by catching
// the string and turning it back into a number.
NSNumber *GTL_EnsureNSNumber(NSNumber *num);
@interface GTLUtilities : NSObject
//
// String encoding
//
// URL encoding, different for parts of URLs and parts of URL parameters
//
// +stringByURLEncodingString just makes a string legal for a URL
//
// +stringByURLEncodingForURI also encodes some characters that are legal in
// URLs but should not be used in URIs,
// per http://bitworking.org/projects/atom/rfc5023.html#rfc.section.9.7
//
// +stringByURLEncodingStringParameter is like +stringByURLEncodingForURI but
// replaces space characters with + characters rather than percent-escaping them
//
+ (NSString *)stringByURLEncodingString:(NSString *)str;
+ (NSString *)stringByURLEncodingForURI:(NSString *)str;
+ (NSString *)stringByURLEncodingStringParameter:(NSString *)str;
// Percent-encoded UTF-8
+ (NSString *)stringByPercentEncodingUTF8ForString:(NSString *)str;
// Key-value coding searches in an array
//
// Utilities to get from an array objects having a known value (or nil)
// at a keyPath
+ (NSArray *)objectsFromArray:(NSArray *)sourceArray
withValue:(id)desiredValue
forKeyPath:(NSString *)keyPath;
+ (id)firstObjectFromArray:(NSArray *)sourceArray
withValue:(id)desiredValue
forKeyPath:(NSString *)keyPath;
//
// Version helpers
//
+ (NSComparisonResult)compareVersion:(NSString *)ver1 toVersion:(NSString *)ver2;
//
// URL builder
//
// If there are already query parameters on urlString, the new ones are simple
// appended after them.
+ (NSURL *)URLWithString:(NSString *)urlString
queryParameters:(NSDictionary *)queryParameters;
// Allocate a global dictionary
+ (NSMutableDictionary *)newStaticDictionary;
// Walk up the class tree merging dictionaries and return the result.
+ (NSDictionary *)mergedClassDictionaryForSelector:(SEL)selector
startClass:(Class)startClass
ancestorClass:(Class)ancestorClass
cache:(NSMutableDictionary *)cache;
@end