+ * Revision 1.20 1997-10-27 14:33:03 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 1.19 1997/09/18 08:59:18 adam
+ * Extra generic handle for the character mapping routines.
+ *
+ * Revision 1.18 1997/09/05 15:29:58 adam
+ * Changed prototype for chr_map_input - added const.
+ * Added support for C++, headers uses extern "C" for public definitions.
+ *
+ * Revision 1.17 1996/06/04 10:20:06 adam
+ * Added support for character mapping.
+ *
+ * Revision 1.16 1996/05/24 14:46:04 adam