# File lib/ruote/reader.rb, line 219
    def self.to_radial(tree, level=0)

      s = '  ' * level + tree[0] + atts_to_radial(tree[1]) + "\n"

      return s if tree[2].empty?

      tree[2].inject(s) { |ss, child| ss << to_radial(child, level + 1); ss }
    end