# File lib_ctrl/rucy/params.rb, line 1198
      def [](name)
        case (name)
        when 'filter'
          self.name
        when 'arguments'
          self.args
        when 'attach_path'
          self.path
        when 'attach_mask'
          self.mask
        when 'virtual_host'
          self.virtual_host
        when 'comment'
          self.comment
        else
          raise "unknown key word: #{name.inspect}"
        end
      end