Purist NS Regexp (Predicate)

gistfile1.m

NSString *actual = @"actual string";
NSString *regex = @"^actual string$";
NSPredicate *regextest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];
BOOL isMatch = [regextest evaluateWithObject:actual];
STAssertTrue(isMatch, @"Expected %@ to match %@", actual, regex);