COPYING revision 225736 
1Flex carries the copyright used for BSD software, slightly modified
2because it originated at the Lawrence Berkeley (not Livermore!) Laboratory,
3which operates under a contract with the Department of Energy:
4
5	Copyright (c) 1990 The Regents of the University of California.
6	All rights reserved.
7
8	This code is derived from software contributed to Berkeley by
9	Vern Paxson.
10
11	The United States Government has rights in this work pursuant
12	to contract no. DE-AC03-76SF00098 between the United States
13	Department of Energy and the University of California.
14
15	Redistribution and use in source and binary forms are permitted
16	provided that: (1) source distributions retain this entire
17	copyright notice and comment, and (2) distributions including
18	binaries display the following acknowledgement:  ``This product
19	includes software developed by the University of California,
20	Berkeley and its contributors'' in the documentation or other
21	materials provided with the distribution and in all advertising
22	materials mentioning features or use of this software.  Neither the
23	name of the University nor the names of its contributors may be
24	used to endorse or promote products derived from this software
25	without specific prior written permission.
26
27	THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
28	IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
29	WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30	PURPOSE.
31
32This basically says "do whatever you please with this software except
33remove this notice or take advantage of the University's (or the flex
34authors') name".
35
36Note that the "flex.skl" scanner skeleton carries no copyright notice.
37You are free to do whatever you please with scanners generated using flex;
38for them, you are not even bound by the above copyright.
39