- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: rsisam.c,v $
- * Revision 1.18 1998-03-05 08:36:28 adam
- * New result set model.
- *
- * Revision 1.17 1997/12/18 10:54:25 adam
- * New method result set method rs_hits that returns the number of
- * hits in result-set (if known). The ranked result set returns real
- * number of hits but only when not combined with other operands.
- *
- * Revision 1.16 1997/10/31 12:37:01 adam
- * Code calls xfree() instead of free().
- *
- * Revision 1.15 1996/10/29 13:55:22 adam
- * Include of zebrautl.h instead of alexutil.h.
- *
- * Revision 1.14 1995/12/11 09:15:24 adam
- * New set types: sand/sor/snot - ranked versions of and/or/not in
- * ranked/semi-ranked result sets.
- * Note: the snot not finished yet.
- * New rset member: flag.
- * Bug fix: r_delete in rsrel.c did free bad memory block.
- *
- * Revision 1.13 1995/10/12 12:41:56 adam
- * Private info (buf) moved from struct rset_control to struct rset.
- * Bug fixes in relevance.
- *
- * Revision 1.12 1995/10/10 14:00:04 adam
- * Function rset_open changed its wflag parameter to general flags.
- *
- * Revision 1.11 1995/10/06 14:38:05 adam
- * New result set method: r_score.
- * Local no (sysno) and score is transferred to retrieveCtrl.
- *
- * Revision 1.10 1995/09/08 14:52:42 adam
- * Work on relevance feedback.
- *
- * Revision 1.9 1995/09/07 13:58:43 adam
- * New parameter: result-set file descriptor (RSFD) to support multiple
- * positions within the same result-set.
- * Boolean operators: and, or, not implemented.
- *
- * Revision 1.8 1995/09/06 16:11:56 adam
- * More work on boolean sets.
- *
- * Revision 1.7 1995/09/06 10:35:44 adam
- * Null set implemented.
- *
- * Revision 1.6 1995/09/05 11:43:24 adam
- * Complete version of temporary sets. Not tested yet though.
- *
- * Revision 1.5 1995/09/04 12:33:56 adam
- * Various cleanup. YAZ util used instead.
- *
- * Revision 1.4 1995/09/04 09:10:55 adam
- * Minor changes.
- *
- * Revision 1.3 1994/11/22 13:15:37 quinn
- * Simple
- *
- * Revision 1.2 1994/11/04 14:53:12 quinn
- * Work