def get_config_name(self, action, name=None):
        '''get the name for configuration

        This returns a name respecting commands and subcommands.  So if you
        have a command name "index" with subcommand "ls", which has option
        "--all", you will pass the action for subcommand "ls"  and the options's
        dest name ("all" in this case), then this function will return
        "index.ls.all" as configuration name for this option.
        '''

        _name = None

        if name is None:
            if '.' in action:
                action, name = action.rsplit('.', 1)
            else:
                _name = ''
                name = action

        if _name is None:
            if isinstance(action, basestring):
                action = self.get_action(action)
            _name = action.argdeco_name

        logger.debug("_name=%s", _name)

        config_name = Undefined
        while True:
            logger.debug("check _name=%s, name=%s", repr(_name), repr(name))

            if _name in self.config_map:
                if name in self.config_map[_name]:
                    config_name = self.config_map[_name][name]
                    if config_name is not None:
                        if config_name.startswith('.'):
                            config_name = _name + config_name
                    break

            if _name == '':
                break

            if '.' not in _name:
                _name = ''
                continue

            _name = _name.rsplit('.', 1)[0]

        assert config_name is not Undefined, "could not determine config name for %s" % name
        return config_name
get the name for configuration

        This returns a name respecting commands and subcommands.  So if you
        have a command name "index" with subcommand "ls", which has option
        "--all", you will pass the action for subcommand "ls"  and the options's
        dest name ("all" in this case), then this function will return
        "index.ls.all" as configuration name for this option.