1 Copyright 1998 by the Massachusetts Institute of Technology. 2 3 Permission to use, copy, modify, and distribute this software and its 4 documentation for any purpose and without fee is hereby granted, provided that 5 the above copyright notice appear in all copies and that both that copyright 6 notice and this permission notice appear in supporting documentation, and that 7 the name of M.I.T. not be used in advertising or publicity pertaining to 8 distribution of the software without specific, written prior permission. 9 M.I.T. makes no representations about the suitability of this software for any 10 purpose. It is provided "as is" without express or implied warranty. 11