'Required:
self, line
Returns:
Nothing
Logic
Look for the start of a paragraph defintion. If one is found, check if
it contains a list-id. If it does, start a list. Change the state to
in_pard.'

def __default_func(self, line):

    if ((self.__token_info == 'mi<tg<open-att__') and (line[17:37] == 'paragraph-definition')):
        is_a_heading = self.__is_a_heading()
        if (not is_a_heading):
            search_obj = re.search(self.__id_regex, line)
            if search_obj:
                num = search_obj.group(1)
                self.__state = 'in_pard'
                search_obj_lv = re.search(self.__lv_regex, line)
                if search_obj_lv:
                    self.__level = search_obj_lv.group(1)
                self.__write_start_list(num)
    self.__write_obj.write(line)
