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vim
I) There are no restrictions on distributing unmodified copies of Vim except that they must include this license text. You can
also distribute unmodified parts of Vim, likewise unrestricted except that they must include this license text. You are also
allowed to include executables that you made from the unmodified Vim sources, plus your own usage examples and Vim
scripts.
II) It is allowed to distribute a modified (or extended) version of Vim, including executables and/or source code, when the
following four conditions are met:
1) This license text must be included unmodified.
2) The modified Vim must be distributed in one of the following five ways:
a) If you make changes to Vim yourself, you must clearly describe in the distribution how to contact you. When the
maintainer asks you (in any way) for a copy of the modified Vim you distributed, you must make your changes, including
source code, available to the maintainer without fee. The maintainer reserves the right to include your changes in the
official version of Vim. What the maintainer will do with your changes and under what license they will be distributed is
negotiable. If there has been no negotiation then this license, or a later version, also applies to your changes. The current
maintainer is Bram Moolenaar <Bram@vim.org>. If this changes it will be announced in appropriate places (most likely
vim.sf.net, www.vim.org and/or comp.editors). When it is completely impossible to contact the maintainer, the obligation to
send him your changes ceases. Once the maintainer has confirmed that he has received your changes they will not have
to be sent again.
b) If you have received a modified Vim that was distributed as mentioned under a) you are allowed to further distribute it
unmodified, as mentioned at I). If you make additional changes the text under a) applies to those changes.
c) Provide all the changes, including source code, with every copy of the modified Vim you distribute. This may be done in
the form of a context diff. You can choose what license to use for new code you add. The changes and their license must
not restrict others from making their own changes to the official version of Vim.
d) When you have a modified Vim which includes changes as mentioned under c), you can distribute it without the source
code for the changes if the following three conditions are met:
- The license that applies to the changes permits you to distribute the changes to the Vim maintainer without fee or
restriction, and permits the Vim maintainer to include the changes in the official version of Vim without fee or restriction.
- You keep the changes for at least three years after last distributing the corresponding modified Vim. When the maintainer
or someone who you distributed the modified Vim to asks you (in any way) for the changes within this period, you must
make them available to him.
- You clearly describe in the distribution how to contact you. This contact information must remain valid for at least three
years after last distributing the corresponding modified Vim, or as long as possible.
e) When the GNU General Public License (GPL) applies to the changes, you can distribute the modified Vim under the
GNU GPL version 2 or any later version.
3) A message must be added, at least in the output of the ":version" command and in the intro screen, such that the user
of the modified Vim is able to see that it was modified. When distributing as mentioned under 2)e) adding the message is
only required for as far as this does not conflict with the license used for the changes.
4) The contact information as required under 2)a) and 2)d) must not be removed or changed, except that the person
himself can make corrections.
III) If you distribute a modified version of Vim, you are encouraged to use the Vim license for your changes and make them
available to the maintainer, including the source code. The preferred way to do this is by e-mail or by uploading the files to
a server and e-mailing the URL. If the number of changes is small (e.g., a modified Makefile) e-mailing a context diff will
do. The e-mail address to be used is <maintainer@vim.org>
IV) It is not allowed to remove this license from the distribution of the Vim sources, parts of it or from a modified version.
You may use this license for previous Vim releases instead of the license that they came with, at your option.
pcre
PCRE LICENCE
------------
PCRE 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.
Release 8 of PCRE is distributed under the terms of the "BSD" licence, as specified below. The documentation for PCRE,
supplied in the "doc" directory, is distributed under the same terms as the software itself.
The basic library functions are written in C and are freestanding. Also included in the distribution is a set of C++ wrapper
functions, and a just-in-time compiler that can be used to optimize pattern matching. These are both optional features that
can be omitted when the library is built.
THE BASIC LIBRARY FUNCTIONS
---------------------------
Written by: Philip Hazel
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