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<body>
<header id="title-block-header">
<h1 class="title">C/WEB programs in TeX Live</h1>
</header>
<h2 id="introduction">Introduction</h2>
<p>Welcome to “All Things <code>WEB</code>” in TeX Live.</p>
<p>Here you find the documented source code of all major
<code>WEB</code> and <code>CWEB</code> programs in readable format. The
<code>NAMED</code> entries represent the unmodified base sources as
written by their respective authors, the attached <code>chg</code> links
point to only the changed sections (or modules) as applied for release
in the TeX Live distribution, so you may want to study these pairs in
parallel. Care has been taken to keep the section numbering intact.</p>
<p>Although not all the programs presented here are written or
maintained by Donald Knuth, it is more convenient for everything to be
collected in one place for reading and searching. And they all stem from
the system that Knuth created.</p>
<p>Note that all <code>WEB</code> programs are mogrified from Pascal
code to C code before compilation, so further modifications and
amendments will occur for the real thing, i.e., the production of the
executable <code>WEB</code> programs. (The <code>CWEB</code> programs do
not require these extra modifications, they get linked directly to the
external runtime environment.)</p>
<p>If you believe to have found anything that remains technically,
historically, typographically, or politically incorrect in any of these
files, please feel free to <a href="https://tug.org/texmfbug/">report
bugs in TeX and friends</a> or <a
href="mailto:andreas_github@freenet.de">contact the maintainer of this
collection</a> directly.</p>
<h2 id="canonical-knuthian-web-programs">Canonical Knuthian WEB
programs</h2>
<ul>
<li><p><code>etc/</code> <span>[</span> <a
href="etc/vftovp.pdf"><code>VFtoVP</code></a>+<a
href="etc/vftovp-changes.pdf"><code>chg</code></a> <a
href="etc/vptovf.pdf"><code>VPtoVF</code></a>+<a
href="etc/vptovf-changes.pdf"><code>chg</code></a>
<span>]</span></p></li>
<li><p><code>mf/</code> <span>[</span> <a
href="mf/mf.pdf"><code>Metafont</code></a>+<a
href="mf/mf-changes.pdf"><code>chg</code></a> <a
href="mf/trapman.pdf"><code>TRAPMAN</code></a> <span>]</span></p></li>
<li><p><code>mfware/</code> <span>[</span> <a
href="mfware/gftype.pdf"><code>GFtype</code></a>+<a
href="mfware/gftype-changes.pdf"><code>chg</code></a> <a
href="mfware/gftopk.pdf"><code>GFtoPK</code></a>+<a
href="mfware/gftopk-changes.pdf"><code>chg</code></a> <a
href="mfware/gftodvi.pdf"><code>GFtoDVI</code></a>+<a
href="mfware/gftodvi-changes.pdf"><code>chg</code></a> <a
href="mfware/mft.pdf"><code>MFT</code></a>+<a
href="mfware/mft-changes.pdf"><code>chg</code></a>
<span>]</span></p></li>
<li><p><code>tex/</code> <span>[</span> <a
href="tex/glue.pdf"><code>GLUE</code></a> <a
href="tex/tex.pdf"><code>TeX</code></a>+<a
href="tex/tex-changes.pdf"><code>chg</code></a> <a
href="tex/tripman.pdf"><code>TRIPMAN</code></a> <span>]</span></p></li>
<li><p><code>texware/</code> <span>[</span> <a
href="texware/pooltype.pdf"><code>POOLtype</code></a>+<a
href="texware/pooltype-changes.pdf"><code>chg</code></a> <a
href="texware/tftopl.pdf"><code>TFtoPL</code></a>+<a
href="texware/tftopl-changes.pdf"><code>chg</code></a> <a
href="texware/pltotf.pdf"><code>PLtoTF</code></a>+<a
href="texware/pltotf-changes.pdf"><code>chg</code></a> <a
href="texware/dvitype.pdf"><code>DVItype</code></a>+<a
href="texware/dvitype-changes.pdf"><code>chg</code></a>
<span>]</span></p></li>
<li><p><code>web/</code> <span>[</span> <a
href="web/webman.pdf"><code>WEBMAN</code></a> <a
href="web/weave.pdf"><code>WEAVE</code></a>+<a
href="web/weave-changes.pdf"><code>chg</code></a> <a
href="web/tangle.pdf"><code>TANGLE</code></a>+<a
href="web/tangle-changes.pdf"><code>chg</code></a> <a
href="web/twill.pdf"><code>TWILL</code></a><a href="#fn1"
class="footnote-ref" id="fnref1" role="doc-noteref"><sup>1</sup></a>
<span>]</span></p></li>
</ul>
<h2 id="complementary-web-programs-by-other-authors">Complementary WEB
programs by other authors</h2>
<ul>
<li><p><code>other/</code> <span>[</span> <a
href="other/dvicopy.pdf"><code>DVIcopy</code></a>+<a
href="other/dvicopy-changes.pdf"><code>chg</code></a> <a
href="other/patgen.pdf"><code>PatGen</code></a>+<a
href="other/patgen-changes.pdf"><code>chg</code></a> <a
href="other/pktogf.pdf"><code>PKtoGF</code></a>+<a
href="other/pktogf-changes.pdf"><code>chg</code></a> <a
href="other/pktype.pdf"><code>PKtype</code></a>+<a
href="other/pktype-changes.pdf"><code>chg</code></a>
<span>]</span></p></li>
<li><p><code>bibtex/</code> <span>[</span> <a
href="bibtex/bibtex.pdf"><code>BibTeX</code></a>+<a
href="bibtex/bibtex-changes.pdf"><code>chg</code></a>
<span>]</span></p></li>
<li><p><code>pdftex/</code> <span>[</span> <a
href="pdftex/pdftex.pdf"><code>pdfTeX</code></a>+<a
href="pdftex/pdftex-changes.pdf"><code>chg</code></a>
<span>]</span></p></li>
<li><p><code>xetex/</code> <span>[</span> <a
href="xetex/xetex.pdf"><code>XeTeX</code></a>+<a
href="xetex/xetex-changes.pdf"><code>chg</code></a>
<span>]</span></p></li>
</ul>
<h2 id="cweb-programs-by-knuth-et-al.">CWEB programs by Knuth
<em>et al.</em></h2>
<ul>
<li><p><code>cweb/</code> <span>[</span> <a
href="cweb/cwebman.pdf"><code>CWEBMAN</code></a> <a
href="cweb/common.pdf"><code>COMMON</code></a>+<a
href="cweb/common-changes.pdf"><code>chg</code></a> <a
href="cweb/ctangle.pdf"><code>CTANGLE</code></a>+<a
href="cweb/ctangle-changes.pdf"><code>chg</code></a> <a
href="cweb/cweave.pdf"><code>CWEAVE</code></a>+<a
href="cweb/cweave-changes.pdf"><code>chg</code></a><br />
<a href="cweb/ctwill.pdf"><code>CTWILL</code></a><a href="#fn2"
class="footnote-ref" id="fnref2" role="doc-noteref"><sup>2</sup></a> <a
href="cweb/refsort.pdf"><code>REFSORT</code></a>+<a
href="cweb/refsort-changes.pdf"><code>chg</code></a> <a
href="cweb/twinx.pdf"><code>TWINX</code></a>+<a
href="cweb/twinx-changes.pdf"><code>chg</code></a>
<span>]</span></p></li>
<li><p><code>ctie/</code> <span>[</span> <a
href="ctie/ctie.pdf"><code>CTIE</code></a>+<a
href="ctie/ctie-changes.pdf"><code>chg</code></a>
<span>]</span></p></li>
<li><p><code>tie/</code> <span>[</span> <a
href="tie/tie.pdf"><code>TIE</code></a>+<a
href="tie/tie-changes.pdf"><code>chg</code></a> <span>]</span></p></li>
<li><p><code>hitex/</code> <span>[</span> <a
href="hitex/hitex.pdf"><code>HiTeX</code></a> <span>]</span></p></li>
<li><p><code>mp/</code> <span>[</span> <a
href="mp/mp.pdf"><code>MP</code></a> <a
href="mp/mpost.pdf"><code>MPOST</code></a> <span>]</span><a href="#fn3"
class="footnote-ref" id="fnref3"
role="doc-noteref"><sup>3</sup></a></p></li>
</ul>
<h2 id="errata-for-computers-typesetting-by-donald-e.-knuth">Errata for
“Computers & Typesetting” by Donald E. Knuth</h2>
<ul>
<li><p><code>errata/</code></p>
<ul>
<li><p><a href="errata/errorlog.pdf">The Errors of TeX</a></p></li>
<li><p><a href="errata/errata.one.pdf">The TeXbook,
1<sup>st</sup> printing</a></p></li>
<li><p><a href="errata/errata.two.pdf">The TeXbook,
2<sup>nd</sup> printing</a></p></li>
<li><p><a href="errata/errata.three.pdf">Computers & Typesetting,
15 June 1987</a></p></li>
<li><p><a href="errata/errata.four.pdf">Computers & Typesetting,
20 February 1989</a></p></li>
<li><p><a href="errata/errata.five.pdf">Computers & Typesetting,
30 September 1989</a></p></li>
<li><p><a href="errata/errata.six.pdf">Computers & Typesetting,
31 December 1990</a></p></li>
<li><p><a href="errata/errata.seven.pdf">Computers & Typesetting,
15 March 1992</a></p></li>
<li><p><a href="errata/errata.eight.pdf">Computers & Typesetting,
pre-Millennium ed.</a></p></li>
<li><p><a href="errata/errata.nine.pdf">The TeXbook, September
1996</a></p></li>
<li><p><a href="errata/errata.ten.pdf">Computers & Typesetting,
1<sup>st</sup> Millennium ed.</a></p></li>
<li><p><a href="errata/errata.eleven.pdf">Computers & Typesetting,
2<sup>nd</sup> Millennium ed.</a></p></li>
<li><p><a href="errata/errata.twelve.pdf">Computers & Typesetting,
early 2014</a></p></li>
<li><p><a href="errata/errata.pdf">Computers & Typesetting,
31 January 2021</a></p></li>
</ul></li>
</ul>
<h2 id="happy-cweb-programming">Happy C/WEB Programming!</h2>
<p>2024-08-11 Andreas Scherer</p>
<section id="footnotes" class="footnotes footnotes-end-of-document"
role="doc-endnotes">
<hr />
<ol>
<li id="fn1"><p><code>TWILL</code> is presented here as a changed
variant of <code>WEAVE</code>.<a href="#fnref1" class="footnote-back"
role="doc-backlink">↩︎</a></p></li>
<li id="fn2"><p><code>CTWILL</code> is presented here in its own format
with “mini-indexes” for every two consecutive pages.<a href="#fnref2"
class="footnote-back" role="doc-backlink">↩︎</a></p></li>
<li id="fn3"><p><code>MP</code> and <code>MPOST</code> have received
quite a few changes “behind the scenes” in order to present them in this
collection; see project <a
href="https://github.com/ascherer/mplibdir"><code>mplibdir</code></a>
for details.<a href="#fnref3" class="footnote-back"
role="doc-backlink">↩︎</a></p></li>
</ol>
</section>
</body>
</html>
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