Synnefo » Pithos iOS Client

//

//  NSString+Conveniences.m

//  OpenStack

//

//  Created by Mike Mayo on 10/9/10.

//  The OpenStack project is provided under the Apache 2.0 license.

//

#import "NSString+Conveniences.h"

@implementation NSString (Conveniences)

- (BOOL)isURL {

    return [self hasPrefix:@"http://"] || [self hasPrefix:@"https://"];

}

- (NSString *)replace:(NSString *)s with:(NSString *)r {

    if ([r isKindOfClass:[NSString class]]) {

        return [self stringByReplacingOccurrencesOfString:s withString:r];

    } else {

        return [self stringByReplacingOccurrencesOfString:s withString:[r description]];

    }

}

- (NSString *)replace:(NSString *)s withInt:(NSInteger)i {

    return [self replace:s with:[NSString stringWithFormat:@"%i", i]];

}

+ (NSString *)encodeToPercentEscape:(NSString *)string {

    return [((NSString *)CFURLCreateStringByAddingPercentEscapes(NULL, 

                                                                 (CFStringRef)string, 

                                                                 NULL, 

                                                                 (CFStringRef)@"!*'();:@&=+$,/?%#[]", 

                                                                 kCFStringEncodingUTF8)) autorelease];

}

+ (NSString *)encodeToPercentEscape:(NSString *)string charactersToEncode:(NSString *)charactersToEncode {

    return [((NSString *)CFURLCreateStringByAddingPercentEscapes(NULL, 

                                                                 (CFStringRef)string, 

                                                                 NULL, 

                                                                 (CFStringRef)charactersToEncode, 

                                                                 kCFStringEncodingUTF8)) autorelease];

}

+ (NSString *)decodeFromPercentEscape:(NSString *)string {

    return [((NSString *)CFURLCreateStringByReplacingPercentEscapesUsingEncoding(NULL, 

                                                                                 (CFStringRef)string,

                                                                                 (CFStringRef)@"", 

                                                                                 kCFStringEncodingUTF8)) autorelease];

}

@end