String non alpha-numeric characters from a NSString
NSCharacterSet *nonalphanumericSet = [[ NSCharacterSet alphanumericCharacterSet ] invertedSet ];
NSString * endingString = [[@"sdfsd*&*(*(SD&((SD" componentsSeparatedByCharactersInSet:nonalphanumericSet] componentsJoinedByString:@""];
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Categories: XCode / C