# File lib/asciidoctor/extensions.rb, line 65
      def use_dsl
        if self.name.nil_or_empty?
          # NOTE contants(false) doesn't exist in Ruby 1.8.7
          #include const_get :DSL if constants(false).grep :DSL
          include const_get :DSL if constants.grep :DSL
        else
          # NOTE contants(false) doesn't exist in Ruby 1.8.7
          #extend const_get :DSL if constants(false).grep :DSL
          extend const_get :DSL if constants.grep :DSL
        end
      end