ASTERN
ASTERN(OOR1, prevback);
ASTERN(O_CH, prevback);
ASTERN(O_PLUS, pos);
ASTERN(O_QUEST, pos);
ASTERN(O_PLUS, pos);
ASTERN(OOR1, pos); /* this one's right */
ASTERN(O_CH, THERETHERE());
ASTERN(O_PLUS, pos);
ASTERN(O_QUEST, pos);
ASTERN(OOR1, start);
ASTERN(O_CH, THERETHERE());
ASTERN(OOR1, start);
ASTERN(O_CH, THERETHERE());
ASTERN(O_PLUS, start);