def match_repeats_threemonthly_daymonthly
      @components[@pos + 2] && @components[@pos + 3] && (@week_num = @components[@pos + 2].to_i) && @week_num > 0 && @week_num <= 5 && (@day_index = ZDate.days_of_week.index(@components[@pos + 3]))   # "repeats threemonthly 2nd wed"
    end