Copyright (c) 1997 by Alan Watson.

Permission is granted to anyone to use this software for any purpose
on any computer system, and to redistribute it freely, subject to the
following restrictions:

1. The author is not responsible for the consequences of use of this
software, no matter how awful, even if they arise from defects in it.

2. The origin of this software must not be misrepresented, either by
explicit claim or by omission.

3. Altered versions must be plainly marked as such, and must not be
misrepresented as being the original software.
