def rebuild(str)
      extract_root_pivot(str)

      list = Dir.glob(dress_down(@pivot) + '*')

      @cycler = list.empty? ? nil : list.cycle
    end
def rebuild(str)
      extract_root_pivot(str)

      list = Dir.glob(dress_down(@pivot) + '*')

      @cycler = list.empty? ? nil : list.cycle
    end
Create a new file/folder auto-data source. NOP
 Construct a new data list for auto-complete