# File lib/html5/treebuilders/simpletree.rb, line 83
        def printTree indent=0
          tree = "\n|%s%s" % [' '* indent, self.to_s]
          indent += 2
          for name, value in attributes
            tree += "\n|%s%s=\"%s\"" % [' ' * indent, name, value]
          end
          for child in childNodes
            tree += child.printTree(indent)
          end
          tree
        end