1 Flex carries the copyright used for BSD software, slightly modified 2 because it originated at the Lawrence Berkeley (not Livermore!) Laboratory, 3 which 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, with or without 16 modification, are permitted provided that the following conditions 17 are met: 18 19 1. Redistributions of source code must retain the above copyright 20 notice, this list of conditions and the following disclaimer. 21 2. Redistributions in binary form must reproduce the above copyright 22 notice, this list of conditions and the following disclaimer in the 23 documentation and/or other materials provided with the distribution. 24 25 Neither the name of the University nor the names of its contributors 26 may be used to endorse or promote products derived from this software 27 without specific prior written permission. 28 29 THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 30 IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 31 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 32 PURPOSE. 33 34 This basically says "do whatever you please with this software except 35 remove this notice or take advantage of the University's (or the flex 36 authors') name". 37 38 Note that the "flex.skl" scanner skeleton carries no copyright notice. 39 You are free to do whatever you please with scanners generated using flex; 40 for them, you are not even bound by the above copyright.