docs: def parse_name(name):
      """ Split a query name into field name, operator and whether it is
      inverted. """
      inverted, op = False, OP_EQ
      if name is not None:
          for op_ in (OP_NIN, OP_IN, OP_NOT, OP_LIKE):
              if name.endswith(op_):
                  op = op_
                  name = name[:len(name) - len(op)]
                  break
          if name.startswith('!'):
              inverted = True
              name = name[1:]
      return name, inverted, op