1 #include "lib9.h"
2 #include "regexp9.h"
3 #include "regcomp.h"
4 
5 extern Relist*
6 _rrenewemptythread(Relist *lp,	/* _relist to add to */
7 	Reinst *ip,		/* instruction to add */
8 	Rune *rsp)		/* pointers to subexpressions */
9 {
10 	Relist *p;
11 
12 	for(p=lp; p->inst; p++){
13 		if(p->inst == ip){
14 			if(rsp < p->se.m[0].s.rsp) {
15 				memset((void *)&p->se, 0, sizeof(p->se));
16 				p->se.m[0].s.rsp = rsp;
17 			}
18 			return 0;
19 		}
20 	}
21 	p->inst = ip;
22 	memset((void *)&p->se, 0, sizeof(p->se));
23 	p->se.m[0].s.rsp = rsp;
24 	(++p)->inst = 0;
25 	return p;
26 }