Copyright (c) 1999 Johnny C. Lam.
All rights reserved.

Permission to use, copy, modify, distribute and sell this software
and its documentation for any purpose is hereby granted without fee,
provided that the above copyright notice appear in all copies and
that both that copyright notice and this permission notice appear
in supporting documentation.  The author makes no representations
about the suitability of this software for any purpose.  It is
provided "as is" without express or implied warranty.
