code: def _get_bus_array_construct(self):
          
          bus_no = integer.setResultsName("bus_no")
          v_base = real.setResultsName("v_base") # kV
          v_magnitude = Optional(real).setResultsName("v_magnitude")
          v_angle = Optional(real).setResultsName("v_angle") # radians
          area = Optional(integer).setResultsName("area") # not used yet
          region = Optional(integer).setResultsName("region") # not used yet
  
          bus_data = bus_no + v_base + v_magnitude + v_angle + \
              area + region + scolon
  
          bus_data.setParseAction(self.push_bus)
  
          bus_array = Literal("Bus.con") + "=" + "[" + "..." + \
              ZeroOrMore(bus_data + Optional("]" + scolon))
  
          # Sort buses according to their name (bus_no)
          bus_array.setParseAction(self.sort_buses)
  
          return bus_array
docs: Returns a construct for an array of bus data.