+ * Revision 1.25 2001-10-03 23:54:41 adam
+ * Fixes for numeric ranges (date=1980-1990).
+ *
+ * Revision 1.24 2001/03/22 21:23:30 adam
+ * Directive s=pw sets structure to phrase if term includes blank(s).
+ *
+ * Revision 1.23 2001/03/20 11:22:58 adam
+ * CCL Truncation character may be defined.
+ *
+ * Revision 1.22 2001/03/07 13:24:40 adam
+ * Member and_not in Z_Operator is kept for backwards compatibility.
+ * Added support for definition of CCL operators in field spec file.
+ *
+ * Revision 1.21 2001/02/21 13:46:53 adam
+ * C++ fixes.
+ *
+ * Revision 1.20 2000/11/16 13:03:12 adam
+ * Function ccl_rpn_query sets attributeSet to Bib-1.
+ *
+ * Revision 1.19 2000/11/16 09:58:02 adam
+ * Implemented local AttributeSet setting for CCL field maps.
+ *
+ * Revision 1.18 2000/10/17 19:50:28 adam
+ * Implemented and-list and or-list for CCL module.
+ *
+ * Revision 1.17 2000/05/01 09:36:50 adam
+ * Range operator only treated in ordered ranges so that minus (-) can be
+ * used for, say, the and-not operator.
+ *
+ * Revision 1.16 2000/03/14 09:06:11 adam
+ * Added POSIX threads support for frontend server.
+ *
+ * Revision 1.15 2000/02/24 23:49:13 adam
+ * Fixed memory allocation problem.
+ *
+ * Revision 1.14 2000/01/31 13:15:21 adam
+ * Removed uses of assert(3). Cleanup of ODR. CCL parser update so
+ * that some characters are not surrounded by spaces in resulting term.
+ * ILL-code updates.
+ *
+ * Revision 1.13 1999/12/22 13:13:32 adam
+ * Search terms may include "operators" without causing error.
+ *
+ * Revision 1.12 1999/11/30 13:47:11 adam