# File lib/html5/inputstream.rb, line 236
    def position
      line, col = @line, @col
      @queue.reverse.each do |c|
        if c == "\n"
          line -= 1
          raise RuntimeError.new("col=#{col}") unless col == 0
          col = @line_lengths[line]
        else
          col -= 1
        end 
      end
      return [line + 1, col]
    end