+ * Revision 1.25 2000-12-05 09:59:10 adam
+ * Work on dict_delete_subtree.
+ *
+ * Revision 1.24 2000/09/05 14:04:05 adam
+ * Updates for prefix 'yaz_' for YAZ log functions.
+ *
+ * Revision 1.23 2000/07/07 12:49:20 adam
+ * Optimized resultSetInsert{Rank,Sort}.
+ *
+ * Revision 1.22 1999/02/02 14:50:19 adam
+ * Updated WIN32 code specific sections. Changed header.
+ *
+ * Revision 1.21 1996/10/29 14:00:03 adam
+ * Page size given by DICT_DEFAULT_PAGESIZE in dict.h.
+ *
+ * Revision 1.20 1996/03/20 09:35:16 adam
+ * Function dict_lookup_grep got extra parameter, init_pos, which marks
+ * from which position in pattern approximate pattern matching should occur.
+ *
+ * Revision 1.19 1996/02/02 13:43:50 adam
+ * The public functions simply use char instead of Dict_char to represent
+ * search strings. Dict_char is used internally only.
+ *
+ * Revision 1.18 1996/02/01 20:39:52 adam
+ * Bug fix: insert didn't work on 8-bit characters due to unsigned char
+ * compares in dict_strcmp (strcmp) and signed Dict_char. Dict_char is
+ * unsigned now.
+ *
+ * Revision 1.17 1995/12/06 17:48:30 adam
+ * Bug fix: delete didn't work.
+ *
+ * Revision 1.16 1995/10/09 16:18:31 adam
+ * Function dict_lookup_grep got extra client data parameter.
+ *
+ * Revision 1.15 1995/09/04 12:33:31 adam
+ * Various cleanup. YAZ util used instead.
+ *
+ * Revision 1.14 1994/10/04 17:46:55 adam
+ * Function options now returns arg with error option.
+ *
+ * Revision 1.13 1994/10/04 12:08:05 adam
+ * Some bug fixes and some optimizations.
+ *
+ * Revision 1.12 1994/10/03 17:23:03 adam
+ * First version of dictionary lookup with regular expressions and errors.
+ *
+ * Revision 1.11 1994/09/28 13:07:09 adam
+ * Use log_mask_str now.
+ *
+ * Revision 1.10 1994/09/26 10:17:24 adam
+ * Minor changes.
+ *
+ * Revision 1.9 1994/09/22 14:43:56 adam
+ * First functional version of lookup with error correction. A 'range'
+ * specified the maximum number of insertions+deletions+substitutions.
+ *
+ * Revision 1.8 1994/09/22 10:43:44 adam
+ * Two versions of depend. Type 1 is the tail-type compatible with
+ * all make programs. Type 2 is the GNU make with include facility.
+ * Type 2 is default. depend rule chooses current rule.
+ *
+ * Revision 1.7 1994/09/19 16:34:26 adam
+ * Depend rule change. Minor changes in dicttest.c
+ *
+ * Revision 1.6 1994/09/16 15:39:12 adam
+ * Initial code of lookup - not tested yet.
+ *
+ * Revision 1.5 1994/09/06 13:05:14 adam
+ * Further development of insertion. Some special cases are
+ * not properly handled yet! assert(0) are put here. The
+ * binary search in each page definitely reduce usr CPU.
+ *
+ * Revision 1.4 1994/09/01 17:49:37 adam
+ * Removed stupid line. Work on insertion in dictionary. Not finished yet.
+ *
+ * Revision 1.3 1994/09/01 17:44:06 adam
+ * depend include change.
+ *
+ * Revision 1.2 1994/08/18 12:40:54 adam
+ * Some development of dictionary. Not finished at all!
+ *
+ * Revision 1.1 1994/08/16 16:26:47 adam