155 	if (g->must != NULL) {  in matcher()
167 	m->pmatch = NULL;  in matcher()
168 	m->lastpos = NULL;  in matcher()
182 		if (endp == NULL) {		/* a miss */  in matcher()
192 		assert(m->coldp != NULL);  in matcher()
196 			if (endp != NULL)  in matcher()
205 		if (m->pmatch == NULL)  in matcher()
208 		if (m->pmatch == NULL) {  in matcher()
218 			if (g->nplus > 0 && m->lastpos == NULL)  in matcher()
221 			if (g->nplus > 0 && m->lastpos == NULL) {  in matcher()
229 		if (dp != NULL)  in matcher()
234 		assert(g->nplus == 0 || m->lastpos != NULL);  in matcher()
236 			if (dp != NULL || endp <= m->coldp)  in matcher()
240 			if (endp == NULL)  in matcher()
252 		assert(dp == NULL || dp == endp);  in matcher()
253 		if (dp != NULL)		/* found a shorter one */  in matcher()
269 		assert(m->pmatch != NULL);  in matcher()
279 	if (m->pmatch != NULL)  in matcher()
281 	if (m->lastpos != NULL)  in matcher()
350 				assert(rest != NULL);	/* it did match */  in dissect()
362 			if (slow(m, sp, rest, ssub, esub) != NULL) {  in dissect()
375 				assert(rest != NULL);	/* it did match */  in dissect()
390 				if (sep == NULL || sep == ssp)  in dissect()
395 			if (sep == NULL) {  in dissect()
412 				assert(rest != NULL);	/* it did match */  in dissect()
499 				return(NULL);  in backref()
503 				return(NULL);  in backref()
509 				return(NULL);  in backref()
517 				return(NULL);  in backref()
525 				return(NULL);  in backref()
536 				return(NULL);  in backref()
546 				return(NULL);  in backref()
565 			return(NULL);  in backref()
578 			return(NULL);  in backref()
582 			return(NULL);  in backref()
585 			return(NULL);	/* not enough left to match */  in backref()
588 			return(NULL);  in backref()
595 		if (dp != NULL)  in backref()
600 		assert(m->lastpos != NULL);  in backref()
611 		if (dp == NULL)  in backref()
622 			if (dp != NULL)  in backref()
626 				return(NULL);	/* there is none */  in backref()
643 		if (dp != NULL)  in backref()
646 		return(NULL);  in backref()
654 		if (dp != NULL)  in backref()
657 		return(NULL);  in backref()
691 	coldp = NULL;  in fast()
746 	assert(coldp != NULL);  in fast()
751 		return(NULL);  in fast()
775 	matchp = NULL;  in slow()