| Copyright (c) 1986 by University of Toronto. |
| Written by Henry Spencer. Not derived from licensed software. |
| |
| 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. |