/ Published in: Objective C
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Extract groups from a Regular Expression
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NSRegularExpression* exp = [NSRegularExpression regularExpressionWithPattern:@"(put)-(expression)-(here)" options:NSRegularExpressionSearch error:&error]; if (error) { NSLog(@"%@", error); } else { NSTextCheckingResult* result = [exp firstMatchInString:testString options:0 range:NSMakeRange(0, [productDescription length] ) ]; if (result) { NSRange groupOne = [result rangeAtIndex:1]; // 0 is the WHOLE string. NSRange groupTwo = [result rangeAtIndex:2]; NSRange groupThree = [result rangeAtIndex:3]; NSLog( [testString substringWithRange:groupOne] ); NSLog( [testString substringWithRange:groupTwo] ); NSLog( [testString substringWithRange:groupThree] ); } }
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