iOS判断邮箱,手机号码，车牌号是否合法的正则表达

/*邮箱验证 MODIFIED BY HELENSONG*/
-(BOOL)isValidateEmail:(NSString *)email
{
    NSString *emailRegex = @"[A-Z0-9a-z._%+-][email?protected][A-Za-z0-9.-]+.[A-Za-z]{2,4}";
    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",emailRegex];
    return [emailTest evaluateWithObject:email];
}
 
/*手机号码验证 MODIFIED BY HELENSONG*/
-(BOOL) isValidateMobile:(NSString *)mobile
{
    //手机号以13， 15，18开头，八个 d 数字字符
    NSString *phoneRegex = @"^((13[0-9])|(15[^4,D])|(18[0,0-9]))d{8}$";
    NSPredicate *phoneTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",phoneRegex];
//    NSLog(@"phoneTest is %@",phoneTest);
    return [phoneTest evaluateWithObject:mobile];
}
 
/*车牌号验证 MODIFIED BY HELENSONG*/
BOOL validateCarNo(NSString* carNo)
{
    NSString *carRegex = @"^[A-Za-z]{1}[A-Za-z_0-9]{5}$";
    NSPredicate *carTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",carRegex];
    NSLog(@"carTest is %@",carTest);
    return [carTest evaluateWithObject:carNo];
}