match string to regular expression - Objective C

How to match string value to regular expression in objective c?

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September 9, 2011 at 4:08 PM

Use NSPredicate. See the example given below...

NSString *searchString = @"loginStatus";
NSString *regexString = @"[a-z0-9_.%]+@[a-z0-9_.%]+\\.[a-z][a-z][a-z]";
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"self matches %@", regexString];
BOOL isStringValid = [predicate evaluateWithObject:searchString];

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