Платформа ЦРНП "Мирокод" для разработки проектов
https://git.mirocod.ru
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
394 lines
18 KiB
394 lines
18 KiB
The LaTeX Project Public License |
|
|
|
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- |
|
|
|
LPPL Version 1.3c 2008-05-04 |
|
|
|
Copyright 1999 2002-2008 LaTeX3 Project |
|
|
|
Everyone is allowed to distribute verbatim copies of this license document, |
|
but modification of it is not allowed. |
|
|
|
PREAMBLE |
|
|
|
======== |
|
|
|
The LaTeX Project Public License (LPPL) is the primary license under which |
|
the LaTeX kernel and the base LaTeX packages are distributed. |
|
|
|
You may use this license for any work of which you hold the copyright and |
|
which you wish to distribute. This license may be particularly suitable if |
|
your work is TeX-related (such as a LaTeX package), but it is written in such |
|
a way that you can use it even if your work is unrelated to TeX. |
|
|
|
The section `WHETHER AND HOW TO DISTRIBUTE WORKS UNDER THIS LICENSE', below, |
|
gives instructions, examples, and recommendations for authors who are considering |
|
distributing their works under this license. |
|
|
|
This license gives conditions under which a work may be distributed and modified, |
|
as well as conditions under which modified versions of that work may be distributed. |
|
|
|
We, the LaTeX3 Project, believe that the conditions below give you the freedom |
|
to make and distribute modified versions of your work that conform with whatever |
|
technical specifications you wish while maintaining the availability, integrity, |
|
and reliability of that work. If you do not see how to achieve your goal while |
|
meeting these conditions, then read the document `cfgguide.tex' and `modguide.tex' |
|
in the base LaTeX distribution for suggestions. |
|
|
|
DEFINITIONS |
|
|
|
=========== |
|
|
|
In this license document the following terms are used: |
|
|
|
`Work' Any work being distributed under this License. `Derived Work' Any work |
|
that under any applicable law is derived from the Work. |
|
|
|
`Modification' Any procedure that produces a Derived Work under any applicable |
|
law -- for example, the production of a file containing an original file associated |
|
with the Work or a significant portion of such a file, either verbatim or |
|
with modifications and/or translated into another language. |
|
|
|
`Modify' To apply any procedure that produces a Derived Work under any applicable |
|
law. `Distribution' Making copies of the Work available from one person to |
|
another, in whole or in part. Distribution includes (but is not limited to) |
|
making any electronic components of the Work accessible by file transfer protocols |
|
such as FTP or HTTP or by shared file systems such as Sun's Network File System |
|
(NFS). |
|
|
|
`Compiled Work' A version of the Work that has been processed into a form |
|
where it is directly usable on a computer system. This processing may include |
|
using installation facilities provided by the Work, transformations of the |
|
Work, copying of components of the Work, or other activities. Note that modification |
|
of any installation facilities provided by the Work constitutes modification |
|
of the Work. |
|
|
|
`Current Maintainer' A person or persons nominated as such within the Work. |
|
If there is no such explicit nomination then it is the `Copyright Holder' |
|
under any applicable law. |
|
|
|
`Base Interpreter' A program or process that is normally needed for running |
|
or interpreting a part or the whole of the Work. |
|
|
|
A Base Interpreter may depend on external components but these are not considered |
|
part of the Base Interpreter provided that each external component clearly |
|
identifies itself whenever it is used interactively. Unless explicitly specified |
|
when applying the license to the Work, the only applicable Base Interpreter |
|
is a `LaTeX-Format' or in the case of files belonging to the `LaTeX-format' |
|
a program implementing the `TeX language'. |
|
|
|
CONDITIONS ON DISTRIBUTION AND MODIFICATION |
|
|
|
=========================================== |
|
|
|
1. Activities other than distribution and/or modification of the Work are |
|
not covered by this license; they are outside its scope. In particular, the |
|
act of running the Work is not restricted and no requirements are made concerning |
|
any offers of support for the Work. |
|
|
|
2. You may distribute a complete, unmodified copy of the Work as you received |
|
it. Distribution of only part of the Work is considered modification of the |
|
Work, and no right to distribute such a Derived Work may be assumed under |
|
the terms of this clause. |
|
|
|
3. You may distribute a Compiled Work that has been generated from a complete, |
|
unmodified copy of the Work as distributed under Clause 2 above, as long as |
|
that Compiled Work is distributed in such a way that the recipients may install |
|
the Compiled Work on their system exactly as it would have been installed |
|
if they generated a Compiled Work directly from the Work. |
|
|
|
4. If you are the Current Maintainer of the Work, you may, without restriction, |
|
modify the Work, thus creating a Derived Work. You may also distribute the |
|
Derived Work without restriction, including Compiled Works generated from |
|
the Derived Work. Derived Works distributed in this manner by the Current |
|
Maintainer are considered to be updated versions of the Work. |
|
|
|
5. If you are not the Current Maintainer of the Work, you may modify your |
|
copy of the Work, thus creating a Derived Work based on the Work, and compile |
|
this Derived Work, thus creating a Compiled Work based on the Derived Work. |
|
|
|
6. If you are not the Current Maintainer of the Work, you may distribute a |
|
Derived Work provided the following conditions are met for every component |
|
of the Work unless that component clearly states in the copyright notice that |
|
it is exempt from that condition. Only the Current Maintainer is allowed to |
|
add such statements of exemption to a component of the Work. |
|
|
|
a. If a component of this Derived Work can be a direct replacement for a component |
|
of the Work when that component is used with the Base Interpreter, then, wherever |
|
this component of the Work identifies itself to the user when used interactively |
|
with that Base Interpreter, the replacement component of this Derived Work |
|
clearly and unambiguously identifies itself as a modified version of this |
|
component to the user when used interactively with that Base Interpreter. |
|
|
|
b. Every component of the Derived Work contains prominent notices detailing |
|
the nature of the changes to that component, or a prominent reference to another |
|
file that is distributed as part of the Derived Work and that contains a complete |
|
and accurate log of the changes. |
|
|
|
c. No information in the Derived Work implies that any persons, including |
|
(but not limited to) the authors of the original version of the Work, provide |
|
any support, including (but not limited to) the reporting and handling of |
|
errors, to recipients of the Derived Work unless those persons have stated |
|
explicitly that they do provide such support for the Derived Work. |
|
|
|
d. You distribute at least one of the following with the Derived Work: |
|
|
|
1. A complete, unmodified copy of the Work; if your distribution of a modified |
|
component is made by offering access to copy the modified component from a |
|
designated place, then offering equivalent access to copy the Work from the |
|
same or some similar place meets this condition, even though third parties |
|
are not compelled to copy the Work along with the modified component; |
|
|
|
2. Information that is sufficient to obtain a complete, unmodified copy of |
|
the Work. |
|
|
|
7. If you are not the Current Maintainer of the Work, you may distribute a |
|
Compiled Work generated from a Derived Work, as long as the Derived Work is |
|
distributed to all recipients of the Compiled Work, and as long as the conditions |
|
of Clause 6, above, are met with regard to the Derived Work. |
|
|
|
8. The conditions above are not intended to prohibit, and hence do not apply |
|
to, the modification, by any method, of any component so that it becomes identical |
|
to an updated version of that component of the Work as it is distributed by |
|
the Current Maintainer under Clause 4, above. |
|
|
|
9. Distribution of the Work or any Derived Work in an alternative format, |
|
where the Work or that Derived Work (in whole or in part) is then produced |
|
by applying some process to that format, does not relax or nullify any sections |
|
of this license as they pertain to the results of applying that process. |
|
|
|
10. |
|
|
|
a. A Derived Work may be distributed under a different license provided that |
|
license itself honors the conditions listed in Clause 6 above, in regard to |
|
the Work, though it does not have to honor the rest of the conditions in this |
|
license. |
|
|
|
b. If a Derived Work is distributed under a different license, that Derived |
|
Work must provide sufficient documentation as part of itself to allow each |
|
recipient of that Derived Work to honor the restrictions in Clause 6 above, |
|
concerning changes from the Work. |
|
|
|
11. This license places no restrictions on works that are unrelated to the |
|
Work, nor does this license place any restrictions on aggregating such works |
|
with the Work by any means. |
|
|
|
12. Nothing in this license is intended to, or may be used to, prevent complete |
|
compliance by all parties with all applicable laws. |
|
|
|
NO WARRANTY |
|
|
|
=========== |
|
|
|
There is no warranty for the Work. Except when otherwise stated in writing, |
|
the Copyright Holder provides the Work `as is', without warranty of any kind, |
|
either expressed or implied, including, but not limited to, the implied warranties |
|
of merchantability and fitness for a particular purpose. The entire risk as |
|
to the quality and performance of the Work is with you. Should the Work prove |
|
defective, you assume the cost of all necessary servicing, repair, or correction. |
|
|
|
In no event unless required by applicable law or agreed to in writing will |
|
The Copyright Holder, or any author named in the components of the Work, or |
|
any other party who may distribute and/or modify the Work as permitted above, |
|
be liable to you for damages, including any general, special, incidental or |
|
consequential damages arising out of any use of the Work or out of inability |
|
to use the Work (including, but not limited to, loss of data, data being rendered |
|
inaccurate, or losses sustained by anyone as a result of any failure of the |
|
Work to operate with any other programs), even if the Copyright Holder or |
|
said author or said other party has been advised of the possibility of such |
|
damages. |
|
|
|
MAINTENANCE OF THE WORK |
|
|
|
======================= |
|
|
|
The Work has the status `author-maintained' if the Copyright Holder explicitly |
|
and prominently states near the primary copyright notice in the Work that |
|
the Work can only be maintained by the Copyright Holder or simply that it |
|
is `author-maintained'. |
|
|
|
The Work has the status `maintained' if there is a Current Maintainer who |
|
has indicated in the Work that they are willing to receive error reports for |
|
the Work (for example, by supplying a valid e-mail address). It is not required |
|
for the Current Maintainer to acknowledge or act upon these error reports. |
|
|
|
The Work changes from status `maintained' to `unmaintained' if there is no |
|
Current Maintainer, or the person stated to be Current Maintainer of the work |
|
cannot be reached through the indicated means of communication for a period |
|
of six months, and there are no other significant signs of active maintenance. |
|
|
|
You can become the Current Maintainer of the Work by agreement with any existing |
|
Current Maintainer to take over this role. |
|
|
|
If the Work is unmaintained, you can become the Current Maintainer of the |
|
Work through the following steps: |
|
|
|
1. Make a reasonable attempt to trace the Current Maintainer (and the Copyright |
|
Holder, if the two differ) through the means of an Internet or similar search. |
|
|
|
2. If this search is successful, then enquire whether the Work is still maintained. |
|
|
|
a. If it is being maintained, then ask the Current Maintainer to update their |
|
communication data within one month. |
|
|
|
b. If the search is unsuccessful or no action to resume active maintenance |
|
is taken by the Current Maintainer, then announce within the pertinent community |
|
your intention to take over maintenance. (If the Work is a LaTeX work, this |
|
could be done, for example, by posting to comp.text.tex.) |
|
|
|
3a. If the Current Maintainer is reachable and agrees to pass maintenance |
|
of the Work to you, then this takes effect immediately upon announcement. |
|
|
|
b. If the Current Maintainer is not reachable and the Copyright Holder agrees |
|
that maintenance of the Work be passed to you, then this takes effect immediately |
|
upon announcement. |
|
|
|
4. If you make an `intention announcement' as described in 2b. above and after |
|
three months your intention is challenged neither by the Current Maintainer |
|
nor by the Copyright Holder nor by other people, then you may arrange for |
|
the Work to be changed so as to name you as the (new) Current Maintainer. |
|
|
|
5. If the previously unreachable Current Maintainer becomes reachable once |
|
more within three months of a change completed under the terms of 3b) or 4), |
|
then that Current Maintainer must become or remain the Current Maintainer |
|
upon request provided they then update their communication data within one |
|
month. |
|
|
|
A change in the Current Maintainer does not, of itself, alter the fact that |
|
the Work is distributed under the LPPL license. |
|
|
|
If you become the Current Maintainer of the Work, you should immediately provide, |
|
within the Work, a prominent and unambiguous statement of your status as Current |
|
Maintainer. You should also announce your new status to the same pertinent |
|
community as in 2b) above. |
|
|
|
WHETHER AND HOW TO DISTRIBUTE WORKS UNDER THIS LICENSE |
|
|
|
====================================================== |
|
|
|
This section contains important instructions, examples, and recommendations |
|
for authors who are considering distributing their works under this license. |
|
These authors are addressed as `you' in this section. |
|
|
|
Choosing This License or Another License |
|
|
|
---------------------------------------- |
|
|
|
If for any part of your work you want or need to use *distribution* conditions |
|
that differ significantly from those in this license, then do not refer to |
|
this license anywhere in your work but, instead, distribute your work under |
|
a different license. You may use the text of this license as a model for your |
|
own license, but your license should not refer to the LPPL or otherwise give |
|
the impression that your work is distributed under the LPPL. |
|
|
|
The document `modguide.tex' in the base LaTeX distribution explains the motivation |
|
behind the conditions of this license. It explains, for example, why distributing |
|
LaTeX under the GNU General Public License (GPL) was considered inappropriate. |
|
Even if your work is unrelated to LaTeX, the discussion in `modguide.tex' |
|
may still be relevant, and authors intending to distribute their works under |
|
any license are encouraged to read it. |
|
|
|
A Recommendation on Modification Without Distribution |
|
|
|
----------------------------------------------------- |
|
|
|
It is wise never to modify a component of the Work, even for your own personal |
|
use, without also meeting the above conditions for distributing the modified |
|
component. While you might intend that such modifications will never be distributed, |
|
often this will happen by accident -- you may forget that you have modified |
|
that component; or it may not occur to you when allowing others to access |
|
the modified version that you are thus distributing it and violating the conditions |
|
of this license in ways that could have legal implications and, worse, cause |
|
problems for the community. It is therefore usually in your best interest |
|
to keep your copy of the Work identical with the public one. Many works provide |
|
ways to control the behavior of that work without altering any of its licensed |
|
components. |
|
|
|
How to Use This License |
|
|
|
----------------------- |
|
|
|
To use this license, place in each of the components of your work both an |
|
explicit copyright notice including your name and the year the work was authored |
|
and/or last substantially modified. Include also a statement that the distribution |
|
and/or modification of that component is constrained by the conditions in |
|
this license. |
|
|
|
Here is an example of such a notice and statement: |
|
|
|
%% pig.dtx |
|
|
|
%% Copyright 2005 M. Y. Name |
|
|
|
% |
|
|
|
% This work may be distributed and/or modified under the |
|
|
|
% conditions of the LaTeX Project Public License, either version 1.3 |
|
|
|
% of this license or (at your option) any later version. |
|
|
|
% The latest version of this license is in |
|
|
|
% http://www.latex-project.org/lppl.txt |
|
|
|
% and version 1.3 or later is part of all distributions of LaTeX |
|
|
|
% version 2005/12/01 or later. |
|
|
|
% |
|
|
|
% This work has the LPPL maintenance status " maintained ". |
|
|
|
% |
|
|
|
% The Current Maintainer of this work is M. Y. Name . |
|
|
|
% |
|
|
|
% This work consists of the files pig.dtx and pig.ins |
|
|
|
% and the derived file pig.sty . |
|
|
|
Given such a notice and statement in a file, the conditions given in this |
|
license document would apply, with the `Work' referring to the three files |
|
`pig.dtx', `pig.ins', and `pig.sty' (the last being generated from `pig.dtx' |
|
using `pig.ins'), the `Base Interpreter' referring to any `LaTeX-Format', |
|
and both `Copyright Holder' and `Current Maintainer' referring to the person |
|
`M. Y. Name'. |
|
|
|
If you do not want the Maintenance section of LPPL to apply to your Work, |
|
change `maintained' above into `author-maintained'. However, we recommend |
|
that you use `maintained', as the Maintenance section was added in order to |
|
ensure that your Work remains useful to the community even when you can no |
|
longer maintain and support it yourself. |
|
|
|
Derived Works That Are Not Replacements |
|
|
|
--------------------------------------- |
|
|
|
Several clauses of the LPPL specify means to provide reliability and stability |
|
for the user community. They therefore concern themselves with the case that |
|
a Derived Work is intended to be used as a (compatible or incompatible) replacement |
|
of the original Work. If this is not the case (e.g., if a few lines of code |
|
are reused for a completely different task), then clauses 6b and 6d shall |
|
not apply. |
|
|
|
Important Recommendations |
|
|
|
------------------------- |
|
|
|
Defining What Constitutes the Work |
|
|
|
The LPPL requires that distributions of the Work contain all the files of |
|
the Work. It is therefore important that you provide a way for the licensee |
|
to determine which files constitute the Work. This could, for example, be |
|
achieved by explicitly listing all the files of the Work near the copyright |
|
notice of each file or by using a line such as: |
|
|
|
% This work consists of all files listed in manifest.txt. |
|
|
|
in that place. In the absence of an unequivocal list it might be impossible |
|
for the licensee to determine what is considered by you to comprise the Work |
|
and, in such a case, the licensee would be entitled to make reasonable conjectures |
|
as to which files comprise the Work.
|
|
|