Optional method parameters rendered in brackets.

    # Creates parameter list used in method and event signature.

    def short_param_list(item)

      if item[:params].length == 0

        return "()"

      end

      params = item[:params].collect do |p|

        (p[:type] || "Object") + " " + (p[:name] || "")

        type = p[:type] || "Object"

        name = p[:name] || ""

        str = "<code>#{type} #{name}</code>"

        if p[:doc] =~ /\(optional\)/

          "<span title='Optional' class='optional'>[" + str + "]</span>"

        else

          str

        end

      return params.length > 0 ? ("( " + params.join(", ") + " )") : "()"

      end

      return "( " + params.join(", ") + " )"

    end

    # 116 chars is also where ext-doc makes its cut, but unlike