+ * Revision 1.7 1995-10-12 12:41:56 adam
+ * Private info (buf) moved from struct rset_control to struct rset.
+ * Bug fixes in relevance.
+ *
+ * Revision 1.6 1995/09/08 14:52:41 adam
+ * Work on relevance feedback.
+ *
+ * Revision 1.5 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 1.4 1995/09/06 16:11:56 adam