79 lines
4.6 KiB
Text
79 lines
4.6 KiB
Text
|
VIM LICENSE
|
||
|
|
|
||
|
|
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.
|