modernc.org/knuth@v0.0.4/vptovf/testdata/ae/COPYING

The LaTeX Project Public License
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LPPL Version 1.3c  2006-05-20

Copyright 1999 2002-2006 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
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You may use this license for any work of which you hold the copyright
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DEFINITIONS
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CONDITIONS ON DISTRIBUTION AND MODIFICATION
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NO WARRANTY
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MAINTENANCE OF THE WORK
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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
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The document `modguide.tex' in the base LaTeX distribution explains
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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
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it may not occur to you when allowing others to access the modified
version that you are thus distributing it and violating the conditions
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cause problems for the community.  It is therefore usually in your
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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
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  % This work has the LPPL maintenance status `maintained'.
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  % The Current Maintainer of this work is M. Y. Name.
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  % This work consists of the files pig.dtx and pig.ins
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Given such a notice and statement in a file, the conditions
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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
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Several clauses of the LPPL specify means to provide reliability and
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Important Recommendations
-------------------------

 Defining What Constitutes the Work

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   in that place.  In the absence of an unequivocal list it might be
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