- while (cmp_l < 0) /* l before m */
- {
- if (cmp_l == -2)
- p->level=0; /* earlier record */
- if (cmp_l == -1)
- {
- p->level++; /* relevant start tag */
-
- if (!info->rset_attr)
- attr_match = 1;
- else
- {
- int cmp_attr;
- int dummy_term;
- attr_match = 0;
- while (p->more_attr)
- {
- cmp_attr = (*info->cmp)(p->buf_attr, p->buf_l);
- if (cmp_attr == 0)
- {
- attr_match = 1;
- break;
- }
- else if (cmp_attr > 0)
- break;
- else if (cmp_attr==-1)
- p->more_attr = rset_read (info->rset_attr, p->rfd_attr,
- p->buf_attr, &dummy_term);
- /* if we had a forward that went all the way to
- * the seqno, we could use that. But fwd only goes
- * to the sysno */
- else if (cmp_attr==-2)
- {
- p->more_attr = rset_forward(
- info->rset_attr, p->rfd_attr,
- p->buf_attr, &dummy_term,
- info->cmp, p->buf_l);
- logf(LOG_DEBUG, "btw: after frowarding attr m=%d",p->more_attr);
- }
- } /* while more_attr */
- }
- }
-#define NEWCODE 1
-#if NEWCODE
- if (cmp_l==-2)
- {
- if (p->more_l)
- {
- p->more_l=rset_forward(
- info->rset_l, p->rfd_l,
- p->buf_l, &p->term_index_l,
- info->cmp, p->buf_m);
- if (p->more_l)
- cmp_l= (*info->cmp)(p->buf_l, p->buf_m);
- else
- cmp_l=2;
- log2( p, "after forwarding L", cmp_l, cmp_r);
- }
- } else
- {
- p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l,
- &p->term_index_l);
- }
-#else
- p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l,
- &p->term_index_l);
-#endif
- if (p->more_l)
- {
- cmp_l= (*info->cmp)(p->buf_l, p->buf_m);
- }
- else
- cmp_l=2;
- log2( p, "end of L loop", cmp_l, cmp_r);
- } /* forward L */
-
-
- /* forward R until past m, count levels */
- log2( p, "Before moving R", cmp_l, cmp_r);
- if (p->more_r)
- cmp_r= (*info->cmp)(p->buf_r, p->buf_m);
- else
- cmp_r=2;
- log2( p, "after first R", cmp_l, cmp_r);
- while (cmp_r < 0) /* r before m */