ios - NSPredicate for phone number -


my phone number format (987) 786-5645.

- (bool)validatephonenumberwithstring:(nsstring*)phone {     nsstring *pnregex = @"[(0-9)]{3}+\\ +\\[0-9-]{3}+\\[0-9]{4}";     nspredicate *pntest = [nspredicate predicatewithformat:@"self matches %@", pnregex];     return [pntest evaluatewithobject:phone]; }

i using above code.

what should exact regex rule this? able figure out digits, , brackets also.

what should use detecting whitespace after closing bracket?

replace pnregex this,

nsstring *pnregex = @"^(\\([0-9]{3}\\) |[0-9]{3}-)[0-9]{3}-[0-9]{4}$";

hope helps you.


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