;;; Written by Mark Kantrowitz, School of Computer Science, 
;;; Carnegie Mellon University, October 1989.

;;; Copyright (c) 1989-95 by Mark Kantrowitz. All rights reserved.

;;; Use and copying of this software and preparation of derivative works
;;; based upon this software are permitted, so long as the following
;;; conditions are met:
;;;      o no fees or compensation are charged for use, copies, or
;;;        access to this software
;;;      o this copyright notice is included intact.
;;; This software is made available AS IS, and no warranty is made about 
;;; the software or its performance. 

;;; Please send bug reports, comments and suggestions to mkant@cs.cmu.edu. 
