iOS textfield输入时正则谓词匹配中英文

NSString *zhengze=@"^([a-z0-9]+\\.?(?:com|cn|mobi|co|net|so|org|gov|tel|tv|biz|cc|hk|name|info|asia|me)?(?:\\.?(?:cn))?)$";

        NSPredicate *pre=[NSPredicatepredicateWithFormat:@"SELF MATCHES %@",zhengze];

        if (![pre evaluateWithObject:searchText.text]) {

            UIAlertView *alert = [[UIAlertViewalloc] initWithTitle:nilmessage:@"对不起，您输入的域名格式有误\n请重新输入！\n\n例如：abc/abc.com" delegate:self cancelButtonTitle:@"确定"otherButtonTitles:nil, nil];

            [alert show];

            [alert release];

            searchText.text=@"";

        }

 

NSString *match =@"^([a-z0-9]*[\u4e00-\u9fa5]+[a-z0-9]*\\.?(?:com|net|tv|biz|cc|公司|网络|中国)?)$";

        NSPredicate *predicate = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",match];

        if(![predicate evaluateWithObject:textField.text]){

            UIAlertView *alert = [[UIAlertViewalloc] initWithTitle:nilmessage:@"对不起，您输入的域名格式有误\n请重新输入！\n\n例如：万网/万网.com" delegate:self cancelButtonTitle:@"确定"otherButtonTitles:nil, nil];

            [alert show];

            [alert release];

        }

        searchText.text=@"";

    }