a # 1 60 R ' qexp escapex condition                                     '
a # a,[1]  ' $0 if~condition                                            '
a # a,[1]  ' Cqexp                                                      '
a # a,[1]  ' $                                                          '
a # a,[1]  '"escapex                                                    '
a # a,[1]  '"from ''the apl handbook of techniques'' copyright 1978, ibm. '
a # a,[1]  '" will execute the quoted expression, then escape.          '
Lfx a