> _USERNAME_BASE = r'[a-zA-Z0-9._](([a-zA-Z0-9._-]{0,2})|([a-zA-Z0-9._-]{3}(?<!root))|([a-zA-Z0-9._-]{4,31})|([a-zA-Z0-9._-]{,30}\$))' Your regular expressions are terrifying. - Chris