# File lib/PageTemplate/commands.rb, line 240
    def output(namespace=nil)
      parser = namespace.parser if namespace
      parser = Parser.recent_parser unless parser
      namespace ||= parser
      preprocessor = parser.preprocessor
      processor = @processor || parser.default_processor
      text = ""
      @text.each { |c| text += c.output(namespace) }
      if preprocessor.respond_to?(processor)
        preprocessor.send(processor, text)
      else
        "[ ValueCommand: unknown preprocessor #{@processor} ]"
      end
    end