# File lib/maruku/input/charsource.rb, line 240
    def method_missing(methodname, *args)
      a_bef = @a.describe
      b_bef = @b.describe

      a = @a.send(methodname, *args)
      b = @b.send(methodname, *args)

      if a.kind_of? MatchData
        if a.to_a != b.to_a
          puts "called: #{methodname}(#{args})"
          puts "Matchdata:\na = #{a.to_a.inspect}\nb = #{b.to_a.inspect}"
          puts "AFTER: " + @a.describe
          puts "AFTER: " + @b.describe
          puts "BEFORE: " + a_bef
          puts "BEFORE: " + b_bef
          puts caller.join("\n")
          exit
        end
      else
        if a != b
          puts "called: #{methodname}(#{args})"
          puts "Attenzione!\na = #{a.inspect}\nb = #{b.inspect}"
          puts "" + @a.describe
          puts "" + @b.describe
          puts caller.join("\n")
          exit
        end
      end

      if @a.cur_char != @b.cur_char
        puts "Fuori sincronia dopo #{methodname}(#{args})"
        puts "" + @a.describe
        puts "" + @b.describe
        exit
      end

      return a
    end