code.grnet.gr Git - pithos-ios/blob - Classes/NSString+Conveniences.m

   1 //
   2 //  NSString+Conveniences.m
   3 //  OpenStack
   4 //
   5 //  Created by Mike Mayo on 10/9/10.
   6 //  The OpenStack project is provided under the Apache 2.0 license.
   7 //
   8
   9 #import "NSString+Conveniences.h"
  10
  11 @implementation NSString (Conveniences)
  12
  13 - (BOOL)isURL {
  14     return [self hasPrefix:@"http://"] || [self hasPrefix:@"https://"];
  15 //    return [[NSPredicate predicateWithFormat:@"SELF MATCHES %@",
  16 //             @"(http|https)://((\\w)*|([0-9]*)|([-|_])*)+([\\.|/]((\\w)*|([0-9]*)|([-|_])*))+"]
  17 //            evaluateWithObject:self];
  18 //    return [[NSPredicate predicateWithFormat:@"SELF MATCHES %@",
  19 //             @"http(s)?://([\\w-]+\\.)+[\\w-]+(/[\\w-\\+ ./?%&amp;=]*)?"]
  20 //            evaluateWithObject:self];
  21 }
  22
  23 - (NSString *)replace:(NSString *)s with:(NSString *)r {
  24     if ([r isKindOfClass:[NSString class]]) {
  25         return [self stringByReplacingOccurrencesOfString:s withString:r];
  26     } else {
  27         return [self stringByReplacingOccurrencesOfString:s withString:[r description]];
  28     }
  29 }
  30
  31 - (NSString *)replace:(NSString *)s withInt:(NSInteger)i {
  32     return [self replace:s with:[NSString stringWithFormat:@"%i", i]];
  33 }
  34
  35 + (NSString *)encodeToPercentEscape:(NSString *)string {
  36     return [((NSString *)CFURLCreateStringByAddingPercentEscapes(NULL,
  37                                                                  (CFStringRef)string,
  38                                                                  NULL,
  39                                                                  (CFStringRef)@"!*'();:@&=+$,/?%#[]",
  40                                                                  kCFStringEncodingUTF8)) autorelease];
  41 }
  42
  43 + (NSString *)encodeToPercentEscape:(NSString *)string charactersToEncode:(NSString *)charactersToEncode {
  44     return [((NSString *)CFURLCreateStringByAddingPercentEscapes(NULL,
  45                                                                  (CFStringRef)string,
  46                                                                  NULL,
  47                                                                  (CFStringRef)charactersToEncode,
  48                                                                  kCFStringEncodingUTF8)) autorelease];
  49 }
  50
  51
  52 + (NSString *)decodeFromPercentEscape:(NSString *)string {
  53     return [((NSString *)CFURLCreateStringByReplacingPercentEscapesUsingEncoding(NULL,
  54                                                                                  (CFStringRef)string,
  55                                                                                  (CFStringRef)@"",
  56                                                                                  kCFStringEncodingUTF8)) autorelease];
  57 }
  58
  59 @end