+ * Revision 1.47 2002-05-03 13:50:25 adam
+ * data1 cleanup
+ *
+ * Revision 1.46 2002/04/13 18:16:43 adam
+ * More XPATH work; common sequence numbers for extract keys
+ *
+ * Revision 1.45 2002/04/12 14:40:42 adam
+ * Work on XPATH
+ *
+ * Revision 1.44 2002/04/11 20:09:47 adam
+ * work on string tag indexing
+ *
+ * Revision 1.43 2002/03/21 23:06:36 adam
+ * Source 'tag' in abs-file
+ *
+ * Revision 1.42 2002/02/20 17:30:01 adam
+ * Work on new API. Locking system re-implemented
+ *
+ * Revision 1.41 2001/05/22 21:01:47 adam
+ * Removed print of data1 tree on stdout so that inetd works again.
+ *
+ * Revision 1.40 2001/03/29 21:31:31 adam
+ * Fixed "record begin" for Tcl filter.
+ *
+ * Revision 1.39 2000/12/05 19:09:15 adam
+ * Fixed problem where indexer could crash if abstract syntax was undefined.
+ *
+ * Revision 1.38 2000/12/05 14:44:58 adam
+ * Fixed minor bug that could cause zmbol to break it data were emitted
+ * with not parent tags.
+ *
+ * Revision 1.37 2000/12/05 12:22:53 adam
+ * Termlist source implemented (so that we can index values of XML/SGML
+ * attributes).
+ *
+ * Revision 1.36 2000/12/05 10:01:44 adam
+ * Fixed bug regarding user-defined attribute sets.
+ *
+ * Revision 1.35 2000/11/29 15:21:31 adam
+ * Fixed problem with passwd db.
+ *
+ * Revision 1.34 2000/02/25 13:24:49 adam
+ * Fixed bug regarding pointer conversion that showed up on OSF V5.
+ *
+ * Revision 1.33 1999/11/30 13:48:04 adam
+ * Improved installation. Updated for inclusion of YAZ header files.
+ *
+ * Revision 1.32 1999/09/07 07:19:21 adam
+ * Work on character mapping. Implemented replace rules.
+ *
+ * Revision 1.31 1999/07/14 10:56:43 adam
+ * Fixed potential memory leak.
+ *
+ * Revision 1.30 1999/07/06 12:26:41 adam
+ * Retrieval handler obeys schema and handles XML transfer syntax.
+ *
+ * Revision 1.29 1999/05/26 07:49:14 adam
+ * C++ compilation.
+ *
+ * Revision 1.28 1999/05/21 12:00:17 adam
+ * Better diagnostics for extraction process.
+ *
+ * Revision 1.27 1999/05/20 12:57:18 adam
+ * Implemented TCL filter. Updated recctrl system.
+ *
+ * Revision 1.26 1999/03/02 16:15:44 quinn
+ * Added "tagsysno" and "tagrank" directives to zebra.cfg.
+ *
+ * Revision 1.25 1999/02/18 15:01:26 adam
+ * Minor changes.
+ *
+ * Revision 1.24 1999/02/02 14:51:28 adam
+ * Updated WIN32 code specific sections. Changed header.
+ *
+ * Revision 1.23 1998/10/18 07:51:10 adam
+ * Changed one logf call.
+ *
+ * Revision 1.22 1998/10/16 08:14:37 adam
+ * Updated record control system.
+ *
+ * Revision 1.21 1998/07/01 09:16:10 adam
+ * Element localno only added when it's greater than 0.
+ *
+ * Revision 1.20 1998/05/20 10:12:26 adam
+ * Implemented automatic EXPLAIN database maintenance.
+ * Modified Zebra to work with ASN.1 compiled version of YAZ.
+ *
+ * Revision 1.19 1998/03/11 11:19:05 adam
+ * Changed the way sequence numbers are generated.
+ *
+ * Revision 1.18 1998/03/05 08:41:31 adam
+ * Minor changes.
+ *
+ * Revision 1.17 1998/02/10 12:03:06 adam
+ * Implemented Sort.
+ *
+ * Revision 1.16 1998/01/29 13:38:17 adam
+ * Fixed problem with mapping to record with unknown schema.
+ *
+ * Revision 1.15 1998/01/26 10:37:57 adam
+ * Better diagnostics.
+ *
+ * Revision 1.14 1997/11/06 11:41:01 adam
+ * Implemented "begin variant" for the sgml.regx filter.
+ *
+ * Revision 1.13 1997/10/31 12:35:44 adam