# File lib/rcodetools/xmpfilter.rb, line 117
  def add_markers(code, min_codeline_size = 50)
    maxlen = code.map{|x| x.size}.max
    maxlen = [min_codeline_size, maxlen + 2].max
    ret = ""
    code.each do |l|
      l = l.chomp.gsub(/ # (=>|!>).*/, "").gsub(/\s*$/, "")
      ret << (l + " " * (maxlen - l.size) + " # =>\n")
    end
    ret
  end