# File lib/xml/util/xmlcanonicalizer.rb, line 161
        def write_node(node)
          visible = is_node_visible(node)
          if ((node.node_type() == :text) && white_text?(node.value()))
            res = node.value()
            res.gsub("\r\n","\n")
            #res = res.delete(" ").delete("\t")

            res.delete("\r")
            @res = @res + res
            #write_text_node(node,visible) if (@state == INSIDE_DOC_ELEMENT)

            return
          end
          if (node.node_type() == :text)
            write_text_node(node, visible)
            return
          end           
          if (node.node_type() == :element)
            write_element_node(node, visible) if (!node.rendered?())
                                node.rendered=(true)
          end
          if (node.node_type() == :processing_instruction)
          end
          if (node.node_type() == :comment)
          end
        end