yacc Copyright

Berkeley Yacc is an LALR(1) parser generator.  Berkeley Yacc has
been made as compatible as possible with AT&T Yacc.  Berkeley Yacc
can accept any input specification that conforms to the AT&T Yacc
documentation.  Specifications that take advantage of undocumented
features of AT&T Yacc will probably be rejected.

Berkeley Yacc is distributed with no warranty whatever.  The code
is certain to contain errors.  Neither the author nor any contributor
takes responsibility for any consequences of its use.

Berkeley Yacc is in the public domain.  The data structures and
algorithms used in Berkeley Yacc are all either taken from documents
available to the general public or are inventions of the author.
Anyone may freely distribute source or binary forms of Berkeley
Yacc whether unchanged or modified.  Distributers may charge whatever
fees they can obtain for Berkeley Yacc.  Programs generated by
Berkeley Yacc may be distributed freely.

Please report bugs to robert.corbett@eng.Sun.COM Include a small
example if possible.  Please include the banner string from skeleton.c
with the bug report.  Do not expect rapid responses.

Copyright (c) 1989 The Regents of the University of California.
All rights reserved.

This code is derived from software contributed to Berkeley by
Robert Paul Corbett.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.
3. All advertising materials mentioning features or use of this software
   must display the following acknowledgement:
This product includes software developed by the University of
California, Berkeley and its contributors.
4. Neither the name of the University nor the names of its contributors
   may be used to endorse or promote products derived from this software
   without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.