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<title>C/WEB programs in TeX Live</title>
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<header id="title-block-header">
<h1 class="title">C/WEB programs in TeX Live</h1>
<p class="author">Andreas Scherer</p>
<p class="date">2025-03-16</p>
</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
together. Care has been taken to keep the section numbering intact.</p>
<p>Although not all 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/webman-changes.pdf"><code>chg</code></a><a href="#fn1"
class="footnote-ref" id="fnref1" role="doc-noteref"><sup>1</sup></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="#fn2"
class="footnote-ref" id="fnref2" role="doc-noteref"><sup>2</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="#fn3"
class="footnote-ref" id="fnref3" role="doc-noteref"><sup>3</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><a href="#fn4"
class="footnote-ref" id="fnref4" role="doc-noteref"><sup>4</sup></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="#fn5"
class="footnote-ref" id="fnref5"
role="doc-noteref"><sup>5</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>
<section id="footnotes" class="footnotes footnotes-end-of-document"
role="doc-endnotes">
<hr />
<ol>
<li id="fn1"><p>The changed variant of the <code>WEB</code> manual
contains additional material specific to the TeX Live distribution.<a
href="#fnref1" class="footnote-back" role="doc-backlink">↩︎</a></p></li>
<li id="fn2"><p><code>TWILL</code> is presented here as a changed
variant of <code>WEAVE</code>.<a href="#fnref2" class="footnote-back"
role="doc-backlink">↩︎</a></p></li>
<li id="fn3"><p><code>CTWILL</code> is presented here in its own format
with “mini-indexes” for every two consecutive pages.<a href="#fnref3"
class="footnote-back" role="doc-backlink">↩︎</a></p></li>
<li id="fn4"><p><code>HiTeX</code> has received quite a few changes
“behind the scenes” in order to present it in this collection; see
project <a href="https://github.com/ascherer/web"><code>web</code></a>
for details.<a href="#fnref4" class="footnote-back"
role="doc-backlink">↩︎</a></p></li>
<li id="fn5"><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="#fnref5" class="footnote-back"
role="doc-backlink">↩︎</a></p></li>
</ol>
</section>
</body>
</html>
|
