iOS Email, Phone, and Credit Card Number Regex

-(BOOL)checkCellFormatting:(NSString* )phoneNumber

{

    

    NSString *phoneRegex = @"[235689][0-9]{6}([0-9]{3})?";

    NSPredicate *test = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", phoneRegex];

    BOOL matches = [test evaluateWithObject:phoneNumber];

    

    return matches;

}

-(BOOL)checkEmailFormatting:(NSString* )emailAddress

{

    

    NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";

    NSPredicate *test = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];

    BOOL matches = [test evaluateWithObject:emailAddress];

    

    return matches;

}

-(BOOL) isCreditCardValid:(NSString*)creditCardNumber

{

    

    

    NSString *creditCardRegex = @"^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\d{3})\d{11})$";

    NSPredicate *test = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", creditCardRegex];

    BOOL matches = [test evaluateWithObject:creditCardNumber];

        

    return matches;

        

}

-(BOOL) isCCVValid:(NSString*)ccvNumber

{

    

    

    NSString *ccvRegex = @"/^[0-9]{3,4}$/";

    NSPredicate *test = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", ccvRegex];

    BOOL matches = [test evaluateWithObject:ccvNumber];

    

    return matches;

    

}

-(BOOL) isExpirationDateValid:(NSString*)expirationDate

{

    

    

    NSString *expirationDateRegex = @"(1[2-9]|[2-9][0-9])(0[1-9]|1[0-2])";

    NSPredicate *test = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", expirationDateRegex];

    BOOL matches = [test evaluateWithObject:expirationDate];

    

    return matches;

}