21 lines
463 B
Objective-C
21 lines
463 B
Objective-C
#import <Foundation/Foundation.h>
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@interface NSString (Extended)
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-(NSString *)reverseString;
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@end
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@implementation NSString (Extended)
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-(NSString *)reverseString
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{
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NSInteger l = [self length] - 1;
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NSMutableString *ostr = [NSMutableString stringWithCapacity:[self length]];
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while (l >= 0)
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{
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NSRange range = [self rangeOfComposedCharacterSequenceAtIndex:l];
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[ostr appendString:[self substringWithRange:range]];
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l -= range.length;
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}
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return ostr;
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}
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@end
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