LICENSE

VIM LICENSE

I)  There are no restrictions on distributing unmodified copies of
    vim-syntax-clingo except that they must include this license text.  You
    can also distribute unmodified parts of vim-syntax-clingo, likewise
    unrestricted except that they must include this license text.  You are
    also allowed to include executables that you made from the unmodified
    vim-syntax-clingo sources, plus your own usage examples and Vim scripts.

II) It is allowed to distribute a modified (or extended) version of
    vim-syntax-clingo, 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-syntax-clingo must be distributed in one of the
       following five ways:
       a) If you make changes to vim-syntax-clingo 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-syntax-clingo 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-syntax-clingo.  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-syntax-clingo 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-syntax-clingo 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-syntax-clingo.
       d) When you have a modified vim-syntax-clingo 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-syntax-clingo without fee or restriction.
          - You keep the changes for at least three years after last
            distributing the corresponding modified vim-syntax-clingo.  When
            the maintainer or someone who you distributed the modified
            vim-syntax-clingo 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-syntax-clingo, or as long as possible.
       e) When the GNU General Public License (GPL) applies to the changes,
          you can distribute the modified vim-syntax-clingo 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-syntax-clingo 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-syntax-clingo, 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-syntax-clingo sources, parts of it or from a modified version.  You
     may use this license for previous vim-syntax-clingo releases instead of
     the license that they came with, at your option.