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1 usata 1.1
2     The LaTeX Project Public License
3     =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
5     LPPL Version 1.3 2003-12-01
7     Copyright 1999 2002-03 LaTeX3 Project
8     Everyone is allowed to distribute verbatim copies of this
9     license document, but modification of it is not allowed.
13     ========
15     The LaTeX Project Public License (LPPL) is the primary license under
16     which the the LaTeX kernel and the base LaTeX packages are distributed.
18     You may use this license for any work of which you hold the copyright
19     and which you wish to distribute. This license may be particularly
20     suitable if your work is TeX-related (such as a LaTeX package), but
21     you may use it with small modifications even if your work is unrelated
22     to TeX.
25     below, gives instructions, examples, and recommendations for authors
26     who are considering distributing their works under this license.
28     This license gives conditions under which a work may be distributed
29     and modified, as well as conditions under which modified versions of
30     that work may be distributed.
32     We, the LaTeX3 Project, believe that the conditions below give you
33     the freedom to make and distribute modified versions of your work
34     that conform with whatever technical specifications you wish while
35     maintaining the availability, integrity, and reliability of
36     that work. If you do not see how to achieve your goal while
37     meeting these conditions, then read the document `cfgguide.tex'
38     and `modguide.tex' in the base LaTeX distribution for suggestions.
42     ===========
44     In this license document the following terms are used:
46     `Work'
47     Any work being distributed under this License.
49     `Derived Work'
50     Any work that under any applicable law is derived from the Work.
52     `Modification'
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56     such a file, either verbatim or with modifications and/or
57     translated into another language.
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78     `Current Maintainer'
79     A person or persons nominated as such within the Work. If there is
80     no such explicit nomination then it is the `Copyright Holder' under
81     any applicable law.
83     `Base Interpreter'
84     A program or process that is normally needed for running or
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91     "LaTeX-Format".
96     ===========================================
98     1. Activities other than distribution and/or modification of the Work
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171     the Derived Work is distributed to all recipients of the Compiled
172     Work, and as long as the conditions of Clause 6, above, are met with
173     regard to the Derived Work.
175     8. The conditions above are not intended to prohibit, and hence do
176     not apply to, the modification, by any method, of any component so that it
177     becomes identical to an updated version of that component of the Work as
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181     format, where the Work or that Derived Work (in whole or in part) is
182     then produced by applying some process to that format, does not relax or
183     nullify any sections of this license as they pertain to the results of
184     applying that process.
186     10. a. A Derived Work may be distributed under a different license
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188     Clause 6 above, in regard to the Work, though it does not have
189     to honor the rest of the conditions in this license.
191     b. If a Derived Work is distributed under this license, that
192     Derived Work must provide sufficient documentation as part of
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194     restrictions in Clause 6 above, concerning changes from the Work.
196     11. This license places no restrictions on works that are unrelated to
197     the Work, nor does this license place any restrictions on aggregating
198     such works with the Work by any means.
200     12. Nothing in this license is intended to, or may be used to, prevent
201     complete compliance by all parties with all applicable laws.
205     ===========
207     There is no warranty for the Work. Except when otherwise stated in
208     writing, the Copyright Holder provides the Work `as is', without
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210     limited to, the implied warranties of merchantability and fitness for
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215     In no event unless agreed to in writing will the Copyright Holder, or
216     any author named in the components of the Work, or any other party who
217     may distribute and/or modify the Work as permitted above, be liable to
218     you for damages, including any general, special, incidental or
219     consequential damages arising out of any use of the Work or out of
220     inability to use the Work (including, but not limited to, loss of
221     data, data being rendered inaccurate, or losses sustained by anyone as
222     a result of any failure of the Work to operate with any other
223     programs), even if the Copyright Holder or said author or said other
224     party has been advised of the possibility of such damages.
228     =======================
230     The Work has the status `author-maintained' if the Copyright Holder
231     explicitly and prominently states near the primary copyright notice in
232     the Work that the Work can only be maintained by the Copyright Holder
233     or simply that is `author-maintained'.
235     The Work has the status `maintained' if there is a Current Maintainer
236     who has indicated in the Work that they are willing to receive error
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238     address). It is not required for the Current Maintainer to acknowledge
239     or act upon these error reports.
241     The Work changes from status `maintained' to `unmaintained' if there
242     is no Current Maintainer, or the person stated to be Current
243     Maintainer of the work cannot be reached through the indicated means
244     of communication for a period of six months, and there are no other
245     significant signs of active maintenance.
247     You can become the Current Maintainer of the Work by agreement with
248     any existing Current Maintainer to take over this role.
250     If the Work is unmaintained, you can become the Current Maintainer of
251     the Work through the following steps:
253     1. Make a reasonable attempt to trace the Current Maintainer (and
254     the Copyright Holder, if the two differ) through the means of
255     an Internet or similar search.
257     2. If this search is successful, then enquire whether the Work
258     is still maintained.
260     a. If it is being maintained, then ask the Current Maintainer
261     to update their communication data within one month.
263     b. If the search is unsuccessful or no action to resume active
264     maintenance is taken by the Current Maintainer, then announce
265     within the pertinent community your intention to take over
266     maintenance. (If the Work is a LaTeX work, this could be
267     done, for example, by posting to comp.text.tex.)
269     3a. If the Current Maintainer is reachable and agrees to pass
270     maintenance of the Work to you, then this takes effect
271     immediately upon announcement.
273     b. If the Current Maintainer is not reachable and the Copyright
274     Holder agrees that maintenance of the Work be passed to you,
275     then this takes effect immediately upon announcement.
277     4. If you make an `intention announcement' as described in 2b. above
278     and after three months your intention is challenged neither by
279     the Current Maintainer nor by the Copyright Holder nor by other
280     people, then you may arrange for the Work to be changed so as
281     to name you as the (new) Current Maintainer.
283     5. If the previously unreachable Current Maintainer becomes
284     reachable once more within three months of a change completed
285     under the terms of 3b) or 4), then that Current Maintainer must
286     become or remain the Current Maintainer upon request provided
287     they then update their communication data within one month.
289     A change in the Current Maintainer does not, of itself, alter the fact
290     that the Work is distributed under the LPPL license.
292     If you become the Current Maintainer of the Work, you should
293     immediately provide, within the Work, a prominent and unambiguous
294     statement of your status as Current Maintainer. You should also
295     announce your new status to the same pertinent community as
296     in 2b) above.
300     ======================================================
302     This section contains important instructions, examples, and
303     recommendations for authors who are considering distributing their
304     works under this license. These authors are addressed as `you' in
305     this section.
307     Choosing This License or Another License
308     ----------------------------------------
310     If for any part of your work you want or need to use *distribution*
311     conditions that differ significantly from those in this license, then
312     do not refer to this license anywhere in your work but, instead,
313     distribute your work under a different license. You may use the text
314     of this license as a model for your own license, but your license
315     should not refer to the LPPL or otherwise give the impression that
316     your work is distributed under the LPPL.
318     The document `modguide.tex' in the base LaTeX distribution explains
319     the motivation behind the conditions of this license. It explains,
320     for example, why distributing LaTeX under the GNU General Public
321     License (GPL) was considered inappropriate. Even if your work is
322     unrelated to LaTeX, the discussion in `modguide.tex' may still be
323     relevant, and authors intending to distribute their works under any
324     license are encouraged to read it.
326     A Recommendation on Modification Without Distribution
327     -----------------------------------------------------
329     It is wise never to modify a component of the Work, even for your own
330     personal use, without also meeting the above conditions for
331     distributing the modified component. While you might intend that such
332     modifications will never be distributed, often this will happen by
333     accident -- you may forget that you have modified that component; or
334     it may not occur to you when allowing others to access the modified
335     version that you are thus distributing it and violating the conditions
336     of this license in ways that could have legal implications and, worse,
337     cause problems for the community. It is therefore usually in your
338     best interest to keep your copy of the Work identical with the public
339     one. Many works provide ways to control the behavior of that work
340     without altering any of its licensed components.
342     How to Use This License
343     -----------------------
345     To use this license, place in each of the components of your work both
346     an explicit copyright notice including your name and the year the work
347     was authored and/or last substantially modified. Include also a
348     statement that the distribution and/or modification of that
349     component is constrained by the conditions in this license.
351     Here is an example of such a notice and statement:
353     %% pig.dtx
354     %% Copyright 2003 M. Y. Name
355     %
356     % This work may be distributed and/or modified under the
357     % conditions of the LaTeX Project Public License, either version 1.3
358     % of this license or (at your option) any later version.
359     % The latest version of this license is in
360     % http://www.latex-project.org/lppl.txt
361     % and version 1.3 or later is part of all distributions of LaTeX
362     % version 2003/12/01 or later.
363     %
364     % This work has the LPPL maintenance status "maintained".
365     %
366     % This Current Maintainer of this work is M. Y. Name.
367     %
368     % This work consists of the files pig.dtx and pig.ins
369     % and the derived file pig.sty.
371     Given such a notice and statement in a file, the conditions
372     given in this license document would apply, with the `Work' referring
373     to the three files `pig.dtx', `pig.ins', and `pig.sty' (the last being
374     generated from `pig.dtx' using `pig.ins'), the `Base Interpreter'
375     referring to any "LaTeX-Format", and both `Copyright Holder' and
376     `Current Maintainer' referring to the person `M. Y. Name'.
378     To prevent the Maintenance section of LPPL from allowing someone else
379     to become the Current Maintainer without your agreement, you could
380     change "maintained" above into "author-maintained".
383     Important Recommendations
384     -------------------------
386     Defining What Constitutes the Work
388     The LPPL requires that distributions of the Work contain all the
389     files of the Work. It is therefore important that you provide a
390     way for the licensee to determine which files constitute the Work.
391     This could, for example, be achieved by explicitly listing all the
392     files of the Work near the copyright notice of each file or by
393     using a line such as:
395     % This work consists of all files listed in manifest.txt.
397     in that place. In the absence of an unequivocal list it might be
398     impossible for the licensee to determine what is considered by you
399     to comprise the Work and, in such a case, the licensee would be
400     entitled to make reasonable conjectures as to which files comprise
401     the Work.

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