ASSIGN            645 regex/engine.c 	ASSIGN(fresh, st);
ASSIGN            693 regex/engine.c 		ASSIGN(tmp, st);
ASSIGN            694 regex/engine.c 		ASSIGN(st, fresh);
ASSIGN            784 regex/engine.c 		ASSIGN(tmp, st);
ASSIGN            785 regex/engine.c 		ASSIGN(st, empty);