| 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 maintainers are listed here: https://github.com/orgs/vim/people. | |
| 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. | |