# File lib/kwala/lib/cycle_detector.rb, line 602
    def print_node(node, indent = 0)
      if node.state == CycleDetector::Node::UNVISITED
        node.state = CycleDetector::Node::INPROGRESS
        if !@visited.key?(node.name)
          head = (' ' * indent ) + "<node name=\"#{ node.name.strip }\""
          if node.edges.empty?
            puts head + " />"
          else
            puts head + " >"
            node.edges.each do |edge|
              print_node(edge, indent + 1)
            end
            puts (' ' * indent ) + "</node>"
          end
          @visited[node.name] = true
        end
        node.state = CycleDetector::Node::DONE
      elsif node.state == CycleDetector::Node::INPROGRESS
        puts (' ' * indent ) + "<node name=\"#{ node.name.strip }\" />"
      end
    end