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I m working on a code which was implemented by someone else which is as follows

+(BOOL)emailValidate:(NSString *)email  {
NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}"; 
NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex]; 
return [emailTest evaluateWithObject:email];
}

+(BOOL) IDValidate:(NSString *)ID {
NSString *regexString = @"[ A-Z0-9a-z_+-]{1,20}"; 
NSPredicate *regex = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regexString]; 
return [regex evaluateWithObject:ID];
}

I want to alow spaces " " and commas "," in ID and email, I search a lot how to alter predicateFormat but could not find the answer.

AsifHabib
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    I'll add this, if you're checking a list of mail addresses (that's the only way of "allowing comas and space in mail" I thought about), a solution could be to delete all space (`stringByReplacingString:withString:`) and using `componentsSeparatedByString` (with the coma) and check each one of them. With this, you may be even able to tell which address doesn't fit. – Larme Nov 21 '13 at 09:11
  • Yes, this trick will work but not recommended way as when system give you support for something, then why to do it for yourself, – AsifHabib Nov 22 '13 at 11:04
  • Well, the use of what I suggested is to tell user which address exactly doesn't fit, info that isn't returned with an "all in one" `NSPredicate` suggested by Mohammad Imran. That's just in case, this use case could interests you (or another member of SO) since it should work ass well. – Larme Nov 22 '13 at 11:11

1 Answers1

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First thing, Coma (,) is not allowed in email. But for your scenario, Use following regular expression:

For "xyx,+ xyz125"
  ^[a-zA-Z0-9][a-zA-Z0-9,+_- ]+$
For email
^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@"
            + "[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$

Hopefully will solve you problem.

Mohammad Imran
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