 used for both academic and
commercial purposes at absolutely no cost. There are no royalties
or GNU-like "copyleft" restrictions. LuaExpat qualifies as <a href=
"http://www.opensource.org/docs/definition.html">Open Source</a>
software. Its licenses are compatible with <a href=
"http://www.gnu.org/licenses/gpl.html">GPL</a>. LuaExpat is not in
the public domain and the
<a href="http://www.keplerproject.org">Kepler Project</a>
keep its copyright. The legal details are below.
</p>

<p>The spirit of the licens