docs: def locate_bar_r(icut, epos):
      """Fine position of the right CSU bar"""
      sm = len(icut)
  
      def swap_coor(x):
          return sm - 1 - x
  
      def swap_line(tab):
          return tab[::-1]
  
      return _locate_bar_gen(icut, epos, transform1=swap_coor,
                             transform2=swap_line)