ITCategory-NSString.m

   1 #import "ITCategory-NSString.h"
   2
   3 @implementation NSString (ITFoundationCategory)
   4
   5 + (id)stringWithFourCharCode:(unsigned long)fourCharCode {
   6         return [[[self alloc] initWithFourCharCode:fourCharCode] autorelease];
   7 }
   8
   9 - (id)initWithFourCharCode:(unsigned long)fourCharCode {
  10         return [self initWithFormat:@"%.4s", &fourCharCode];
  11 }
  12
  13 - (unsigned long)fourCharCode {
  14         const unsigned char *c_s = [self UTF8String];
  15         unsigned long tmp = *c_s++;
  16         tmp <<= 8;
  17         tmp |= *c_s++;
  18         tmp <<= 8;
  19         tmp |= *c_s++;
  20         tmp <<= 8;
  21         return tmp |= *c_s++;
  22 }
  23
  24 @end