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//opt/alt/pcre2/usr/share/doc/alt-pcre2-10.47/LICENCE.md
PCRE2 Licence ============= | SPDX-License-Identifier: | BSD-3-Clause WITH PCRE2-exception | |---------|-------| PCRE2 is a library of functions to support regular expressions whose syntax and semantics are as close as possible to those of the Perl 5 language. Releases 10.00 and above of PCRE2 are distributed under the terms of the "BSD" licence, as specified below, with one exemption for certain binary redistributions. The documentation for PCRE2, supplied in the "doc" directory, is distributed under the same terms as the software itself. The data in the testdata directory is not copyrighted and is in the public domain. The basic library functions are written in C and are freestanding. Also included in the distribution is a just-in-time compiler that can be used to optimize pattern matching. This is an optional feature that can be omitted when the library is built. The just-in-time compiler is separately licensed under the "2-clause BSD" licence. COPYRIGHT --------- ### The basic library functions Written by: Philip Hazel Email local part: Philip.Hazel Email domain: gmail.com Retired from University of Cambridge Computing Service, Cambridge, England. Copyright (c) 1997-2007 University of Cambridge Copyright (c) 2007-2024 Philip Hazel All rights reserved. ### PCRE2 Just-In-Time compilation support Written by: Zoltan Herczeg Email local part: hzmester Email domain: freemail.hu Copyright (c) 2010-2024 Zoltan Herczeg All rights reserved. ### Stack-less Just-In-Time compiler Written by: Zoltan Herczeg Email local part: hzmester Email domain: freemail.hu Copyright (c) 2009-2024 Zoltan Herczeg All rights reserved. The code in the `deps/sljit` directory has its own LICENSE file. ### All other contributions Many other contributors have participated in the authorship of PCRE2. As PCRE2 has never required a Contributor Licensing Agreement, or other copyright assignment agreement, all contributions have copyright retained by each original contributor or their employer. THE "BSD" LICENCE ----------------- Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notices, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notices, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the University of Cambridge nor the names of any contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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. EXEMPTION FOR BINARY LIBRARY-LIKE PACKAGES ------------------------------------------ The second condition in the BSD licence (covering binary redistributions) does not apply all the way down a chain of software. If binary package A includes PCRE2, it must respect the condition, but if package B is software that includes package A, the condition is not imposed on package B unless it uses PCRE2 independently.
