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<title>UK TeX FAQ -- question label extex</title>
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<h3>The ExTeX project</h3>
<p><a href="http://www.extex.org/">The ExTeX project</a> is
building on the experience of the many existing TeX development and
extension projects, to develop a new TeX-like system. The system
is to be developed in Java (like the ill-fated <i>NTS</i> project).
<p>While ExTeX will implement all of TeX’s primitives, some may be
marked as obsolete, and “modern” alternatives provided (an obvious
example is the primitive <code>\</code><code>input</code> command, whose syntax inevitably
makes life difficult for users of modern operating system file
paths). Desirable extensions from <a href="FAQ-etex.html">e-TeX</a>,
<a href="FAQ-whatpdftex.html">PDFTeX</a> and <a href="FAQ-omegaleph.html">Omega</a>
have been identified.
<p>Usability will be another focus of the work: debugging support and log
filtering mechanisms will please those who have long struggled with
TeX macros.
<p>ExTeX will accept Unicode input, from the start. In the longer
term, drawing primitives are to be considered.
<p><p>This question on the Web: <a href="http://www.tex.ac.uk/cgi-bin/texfaq2html?label=extex">http://www.tex.ac.uk/cgi-bin/texfaq2html?label=extex</a>
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