anchor.diff:      [<<"#">>] -> self;
       [Pattern] -> Pattern;
       [Key, Field] -> {Key, Field}
  -  end.+  end.
  
positive.code: parse_error(_Cmd, {bad_arg_num, SubCmd}) -> ["wrong number of arguments for ", SubCmd];
  parse_error(_Cmd, unauthorized) -> <<"operation not permitted">>;
  parse_error(_Cmd, nan_result) -> <<"resulting score is not a number (NaN)">>;
  parse_error(_Cmd, {error, Reason}) -> Reason;
  parse_error(_Cmd, Error) -> io_lib:format("~p", [Error]).
  
  
negative.code:   end;
  run(#edis_command{cmd = <<"AUTH">>, args = [Password]}, State) ->
    case edis_config:get(requirepass) of
      undefined -> throw(auth_not_allowed);
      Password -> tcp_ok(State#state{authenticated = true});
      _ -> throw(invalid_password)
    end;
  