Recently I was shocked by the fact that two NSStrings that resemble each other on NSLog may be different. It is because sometimes NSString can contain a zero width space character. Be aware of that and consider:
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#define ZERO_WIDTH_SPACE_STRING @"\u200B" |
To conquer this you should clean your string from zero width white space characters before comparing:
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NSMutableString *eMailToAdd = [NSMutableString string]; NSMutableCharacterSet *charSet = \ [[NSCharacterSet whitespaceCharacterSet] mutableCopy]; //[charSet formUnionWithCharacterSet:\ [NSCharacterSet punctuationCharacterSet]]; NSString *rawStr = [[tokenField textField] text]; for (int i = 0; i < [rawStr length]; i++) { if (![charSet characterIsMember:\ [rawStr characterAtIndex:i]]) { [eMailToAdd appendFormat:\ @"%@",[NSString stringWithFormat:@"%c",\ [rawStr characterAtIndex:i]]]; } } |