Subversion Repositories planix.SVN

#include <stdlib.h>
#include <stdio.h>
#include "regexp.h"
#include "regcomp.h"

/*
 *      Machine state
 */
Relist* _relist[2];
Relist* _reliste[2];
int     _relistsize = LISTINCREMENT;

/*
 *  save a new match in mp
 */
extern void
_renewmatch(Resub *mp, int ms, Resublist *sp)
{
        int i;

        if(mp==0 || ms<=0)
                return;
        if(mp[0].s.sp==0 || sp->m[0].s.sp<mp[0].s.sp ||
           (sp->m[0].s.sp==mp[0].s.sp && sp->m[0].e.ep>mp[0].e.ep)){
                for(i=0; i<ms && i<NSUBEXP; i++)
                        mp[i] = sp->m[i];
                for(; i<ms; i++)
                        mp[i].s.sp = mp[i].e.ep = 0;
        }
}

/*
 * Note optimization in _renewthread:
 *      *lp must be pending when _renewthread called; if *l has been looked
 *              at already, the optimization is a bug.
 */
extern Relist*
_renewthread(Relist *lp,        /* _relist to add to */
        Reinst *ip,     /* instruction to add */
        Resublist *sep) /* pointers to subexpressions */
{
        Relist *p;

        for(p=lp; p->inst; p++){
                if(p->inst == ip){
                        if((sep)->m[0].s.sp < p->se.m[0].s.sp)
                                p->se = *sep;
                        return 0;
                }
        }
        p->inst = ip;
        p->se = *sep;
        (++p)->inst = 0;
        return p;
}