UICaboodle/UCString.h

   1 #ifndef UICABOODLE_UCSTRING_H
   2 #define UICABOODLE_UCSTRING_H
   3
   4 #import <Foundation/NSString.h>
   5
   6 @interface NSString (UIKit)
   7 - (NSString *) stringByAddingPercentEscapes;
   8 - (NSString *) stringByReplacingCharacter:(unsigned short)arg0 withCharacter:(unsigned short)arg1;
   9 @end
  10
  11 @interface NSString (UICaboodle)
  12 + (NSString *) stringWithDataSize:(double)size;
  13 - (NSString *) stringByAddingPercentEscapesIncludingReserved;
  14 @end
  15
  16 @implementation NSString (UICaboodle)
  17
  18 + (NSString *) stringWithDataSize:(double)size {
  19     unsigned power = 0;
  20     while (size > 1024) {
  21         size /= 1024;
  22         ++power;
  23     }
  24
  25     static const char *powers_[] = {"B", "KiB", "MiB", "GiB"};
  26
  27     return [NSString stringWithFormat:@"%.1f%s", size, powers_[power]];
  28 }
  29
  30 - (NSString *) stringByAddingPercentEscapesIncludingReserved {
  31     return [(id)CFURLCreateStringByAddingPercentEscapes(
  32         kCFAllocatorDefault,
  33         (CFStringRef) self,
  34         NULL,
  35         CFSTR(";/?:@&=+$,"),
  36         kCFStringEncodingUTF8
  37     ) autorelease];
  38 }
  39
  40 @end
  41
  42 #endif/*UICABOODLE_UCSTRING_H*/