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Catalyst 6500 Series Switch Command Reference—Release8.1
78-15474-01

APPENDIX

B

Acknowledgments for Open-Source Software

The Catalyst operating system software pipe command uses Henry Spenc er’s regular expression library
(regex). The most recent version of the library has been modified slightly in the Catalyst operating
system software to maintain compatibility with earlier versions of the library.
Henry Spencer’s regular expression library (regex). Copyright 1992, 1993, 1994, 1997 Henry Spencer.
All rights reserved. This software is not subject to any license of the American Telephone and Telegraph
Company or of the Regents of the University of California.
Permission is granted to anyone to use this software for any purpose on a ny c omp uter syst em , an d t o
alter it and redistribute it, 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 flaws in it.
2. The origin of this software must not be misrepresented, either by explicit claim or by omission.
Since few users ever read sources, credits must appear in the documentation.
3. Altered versions must be plainly marked as such, and must not be misrepresented as being the
original software. Since few users ever read sources, credits must appear in the documentation.
4. This notice may not be removed or altered.