+ * Revision 1.56 1998-01-12 15:04:08 adam
+ * The test option (-s) only uses read-lock (and not write lock).
+ *
+ * Revision 1.55 1997/10/27 14:33:04 adam
+ * Moved towards generic character mapping depending on "structure"
+ * field in abstract syntax file. Fixed a few memory leaks. Fixed
+ * bug with negative integers when doing searches with relational
+ * operators.
+ *
+ * Revision 1.54 1997/09/29 09:08:36 adam
+ * Revised locking system to be thread safe for the server.
+ *
+ * Revision 1.53 1997/09/25 14:54:43 adam
+ * WIN32 files lock support.
+ *
+ * Revision 1.52 1997/09/22 12:39:06 adam
+ * Added get_pos method for the ranked result sets.
+ *
+ * Revision 1.51 1997/09/18 08:59:19 adam
+ * Extra generic handle for the character mapping routines.
+ *
+ * Revision 1.50 1997/09/17 12:19:13 adam