568 struct strpush {  struct
569 	struct strpush *prev;   /* preceding string on stack */  argument
578 	struct strpush *spfree;  argument
599 	struct strpush *strpush; /* for pushing strings at this level */  argument
600 	struct strpush basestrpush; /* so pushing one is fast */
603 	struct strpush *spfree;
10704 	struct strpush *sp;  in pushstring()
10709 	if (g_parsefile->strpush || g_parsefile->spfree) {  in pushstring()
10711 		sp->prev = g_parsefile->strpush;  in pushstring()
10715 	g_parsefile->strpush = sp;  in pushstring()
10737 	struct strpush *sp = g_parsefile->strpush;  in popstring()
10756 	g_parsefile->strpush = sp->prev;  in popstring()
10851 	if (unlikely(g_parsefile->strpush)) {  in preadbuffer()
10933 static void freestrings(struct strpush *sp)  in freestrings()
10937 		struct strpush *psp;  in freestrings()
10985 	struct strpush *sp = g_parsefile->spfree;  in pgetc()
11088 	while (pf->strpush) {  in popfile()