# File lib/icalendar/rrule.rb, line 99
    def parse_weekday_list(name, string)
      match = string.match(/;#{name}=(.*?)(;|$)/)
      if match
        return_array = match[1].split(",").map {|weekday|
          wd_match = weekday.match(/([+-]?\d*)(SU|MO|TU|WE|TH|FR|SA)/)
          Weekday.new(wd_match[2], wd_match[1])
          }
        return_array.last.you_are_last
      else
        nil
      end
      return_array
    end