# File lib/ruote/util/tree.rb, line 53 def self.tree_to_s(tree, expid='0') d = expid.split('_').size - 1 s = "#{' ' * d * 2}#{expid} #{tree[0]} #{tree[1].inspect}\n" tree[2].each_with_index { |t, i| s << tree_to_s(t, "#{expid}_#{i}") } s end