def found_next_dayname
      day_to_add = @curdate.next(@day_index)
      @constructs << DateConstruct.new(date: day_to_add, comp_start: @pos, comp_end: @pos += 1, found_in: __method__)
      while @components[@pos + 1] && @day_index = ZDate.days_of_week.index(@components[@pos + 1])
        # note @pos gets incremented on each pass