# File lib/maruku/input/parse_span.rb, line 731
    def describe
      lines = @elements.map{|x| x.inspect }.join("\n")
      s = "Elements read in span: \n" +
        lines.gsub(/^/, ' -') + "\n"

      s += "Current string: \n  #{@cur_string.inspect}\n" unless  @cur_string.empty?
      s
    end