# File lib/rbot/messagemapper.rb, line 332
    def inspect
      mul = multi? ? " multi" : " single"
      opt = optional? ? " optional" : " needed"
      if @regexp
        reg = " regexp=%s index=%d" % [@regexp, @index]
      else
        reg = nil
      end
      "<%s %s%s%s%s>" % [self.class, name, mul, opt, reg]
    end