build index.html for all winners

Updated manifest as per recent file changes.

Updated winner `.winner.json` to reflect the manifest changes.

Added [bin/all_run.sh](bin/all_run.sh) tool to run a command over
all winning entries.

These tools had slight improvements in the help usage message:

* bin/gen-author.sh VERSION="1.3.1 2024-01-16"
* bin/gen-inventory.sh VERSION="1.0.1 2024-01-16"
* bin/pandoc_wrapper.sh VERSION="1.3.1 2024-01-16"
* bin/subst.default.sh VERSION="1.1.1 2024-01-16"
* bin/subst.winner-index.sh VERSION="1.1.1 2024-01-16"

The `bin/readme2index.sh` tool was improved so that
if the `index.html` file exists and the tool forms
the exact same content, then the file `index.html`
file is NOT touched.

* bin/readme2index.sh VERSION="1.1 2024-01-16"

We used the following command to generate `index.html` files
for all winning entries:

```sh
bin/all_run.sh -v 3 bin/readme2index.sh
```

NOTE: We have not (yet) built HTML files above the winner directory
level (e.g., no year level nor top level HTML), nor have be built
non-index HTML files for winners.

NOTE: By default we are running `pandoc(1)` with:

```
--fail-if-warnings=true
```

This means that any problems with markdown to HTML
generates an error.  This is done to be sure that
the HTML conversion is clean.

We had to fix the following `README.md` files:

* `2000/rince/README.md`

The reference [^2] was never used.  We made a guess that [^2] applies
to the same spot as [^1].  Perhaps there is a better spot where
[^2] applies?

NOTE: For every reference, there MUST be some place where that
reference is used.

* 2012/vik/README.md

The string "$...$" is assumed to be a TeX encoded string.

NOTE: Every "$..$" needs to be backslashed as in "\$..\$".

* 2018/burton1/README.md

The reference [2] was duplicated.  We changed the
second [2] to [3].

NOTE: Every reference needs to have a unique number.

* 2020/carlini/README.md

The string "$...$" is assumed to be a TeX encoded string.

NOTE: Every "$..$" needs to be backslashed as in "\$..\$".

We also found 2 errors in the `author/author_handle.json` file set:

* author/Anonymous_2001.json

The `author/Anonymous_2001.json` file was missing.

* author/Jari_Arkko.json

The winner ID for `1989_jar.1` had a typo.
This commit is contained in:
Landon Curt Noll committed 2024-01-17 00:32:39 -08:00
1 parent 893cd915b6
commit c1466f5165
350 files changed
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<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<!-- START: two lines up starts content from: inc/top.default.html -->
<!-- -->
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
@@ -6,27 +8,225 @@
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
<!-- -->
<!-- file: 1993/ant/index.html created by: fake.gen_index.sh version: 1.0.5 2023-10-31 -->
<html lang="en">
<!-- END: this line ends content from: inc/top.default.html -->
<!-- -->
<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
<!-- -->
<!-- START: this line starts content from: inc/head.default.html -->
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>1993 ant</title>
<meta name="description" content="IOCCC year: 1993 IOCCC winner: ant winner index page">
<meta name="keywords" content="IOCCC,1993,ant,winner index page">
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
<title>1993/ant</title>
<meta name="description" content="1993 IOCCC winner ant">
<meta name="keywords" content="IOCCC, 1993, IOCCC 1993, IOCCC winner, ant">
</head>
<!-- END: this line ends content from: inc/head.default.html -->
<!-- START: this line starts content from: inc/body.default.html -->
<body>
<h1>1993 ant</h1>
<!-- END: this line ends content from: inc/body.default.html -->
<!-- START: this line starts content from: inc/header.default.html -->
<p>XXX - fake content until readme2index is working - XXX</p>
<div class="header">
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
<h1>The International Obfuscated C Code Contest</h1>
<h2>1993/ant</h2>
</div>
<hr style="width:50%;text-align:left;margin-left:0">
<!-- END: this line ends content from: inc/header.default.html -->
<!-- START: this line starts content from: inc/topnav.first.html -->
<!-- Start Nu Html Checker -->
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F1993%2Fant%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/1993/ant/index.html</a></p>
<!-- End Nu Html Checker -->
<div class="topnav">
<a class="Left Disabled" href="#">first entry</a>
<a class="Left" href="../index.html">&uarr; 1993 &uarr;</a>
<a class="Left" href="../cmills/index.html">cmills &rarr;</a>
<a class="Right" href="#inventory">Inventory</a>
</div>
<!-- END: this line ends content from: inc/topnav.first.html -->
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<div class="row">
<!-- END: this line ends content from: inc/begin-row.default.html -->
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<div class="leftcolumn">
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
<!-- START: this line starts content from: inc/sidenav.default.html -->
<div class="sidenav">
<a href="#content">Jump to contents</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
<a href="/temp-test-ioccc/winners.html">People who have won</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
<a href="/temp-test-ioccc/faq.html">FAQ</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/bugs.html">Bugs &amp; (mis)features</a>
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
</div>
<hr>
<div class="sidenav">
<a href="#top">Jump to top</a>
</div>
<!-- END: this line ends content from: inc/sidenav.default.html -->
<!-- START: this line starts content from: inc/end-leftcolumn.default.html -->
</div>
<!-- END: this line ends content from: inc/end-leftcolumn.default.html -->
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<div class="rightcolumn">
<!-- END: this line ends content from: inc/begin-rightcolumn.default.html -->
<!-- START: this line starts content from: inc/before-content.default.html -->
<a name="content"></a>
<!-- END: this line ends content from: inc/before-content.default.html -->
<!-- START: this line starts content generated by: bin/gen-author.sh -->
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
href="/temp-test-ioccc/winners.html#Anthony_C_Howe">Anthony C.
Howe</a><br> Location: <a
href="/temp-test-ioccc/location.html#CA">CA</a></p>
<!-- END: next line ends content generated by: bin/gen-author.sh -->
<h2 id="to-build">To build:</h2>
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> all</span></code></pre></div>
<h3 id="bugs-and-misfeatures">Bugs and (Mis)features:</h3>
<p>The current status of this entry is:</p>
<pre><code>STATUS: missing file - please provide it</code></pre>
<p>For more detailed information see <a href="/bugs.md#1993-ant">1993
ant in bugs.md</a>.</p>
<h2 id="to-use">To use:</h2>
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./ant</span> <span class="st">&#39;ERE&#39;</span> [file ...]</span></code></pre></div>
<h2 id="try">Try:</h2>
<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span></span></code></pre></div>
<h2 id="judges-remarks">Judges’ remarks:</h2>
<p>See the author’s POSIX P1003.2-like documentation file <a
href="ant.txt">ant.txt</a> for more information.</p>
<p>This program demonstrates that POSIX doesn’t guarantee readability.
:-)</p>
<h2 id="authors-remarks">Author’s remarks:</h2>
<p>Some of the features of my entry are:</p>
<ul>
<li>“Lengthy” POSIX.2 style specification and manual :) :)</li>
<li>Useful subset of POSIX.2 Extended Regular Expressions.</li>
<li>Recursive ERE parser/compiler that generates an NFA railroad.</li>
<li>Lazy NFA to DFA evaluation to improve performance speed.</li>
<li>Code tested on a variety of platforms.</li>
<li>Make driven test script.</li>
<li>Can be compiled with ANSI or K&amp;R C.</li>
<li>Not a toy, but actually useful and usable on systems that use
DOS.</li>
<li>See also <a href="ant.txt">ant.txt</a>.</li>
</ul>
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
License:</h2>
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
Reserved. You are free to share and adapt this file under the terms of
this license:</p>
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
<p>For more information, see:
https://creativecommons.org/licenses/by-sa/4.0/</p>
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
<h1 id="inventory-for-1993ant"><a name="inventory"></a>Inventory for
1993/ant</h1>
<h2 id="primary-files">Primary files</h2>
<ul>
<li><a href="index.html">index.html</a> - winner home page</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ant/ant.c">ant.c</a>
- winning source</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ant/Makefile">Makefile</a>
- winner Makefile</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ant/ant.orig.c">ant.orig.c</a>
- original source</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ant/ant.txt">ant.txt</a>
- ag man page</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ant/try.sh">try.sh</a>
- how to run</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ant/ant.test.mk">ant.test.mk</a>
- test suite</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ant/ants.txt">ants.txt</a>
- lots of ASCII ants</li>
<li><a href="1993_ant.tar.bz2">1993_ant.tar.bz2</a> - download winning
source</li>
</ul>
<h2 id="secondary-files">Secondary files</h2>
<ul>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ant/.gitignore">.gitignore</a>
- list of files that should not be committed under git</li>
<li><a href=".path">.path</a> - directory path from top directory</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ant/.winner.json">.winner.json</a>
- description of winner in JSON</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ant/README.md">README.md</a>
- markdown source for index.html</li>
</ul>
<!-- END: next line ends content generated by: bin/gen-inventory.sh -->
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</div>
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<div class="footer">
<hr>
<h2>Coda</h2>
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F1993%2Fant%2Findex.html">Nu HTML check this web page</a></p>
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
</div>
<!-- END: this line ends content from: inc/footer.default.html -->
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</body>
</html>
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<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<!-- START: two lines up starts content from: inc/top.default.html -->
<!-- -->
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
@@ -6,27 +8,251 @@
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
<!-- -->
<!-- file: 1993/cmills/index.html created by: fake.gen_index.sh version: 1.0.5 2023-10-31 -->
<html lang="en">
<!-- END: this line ends content from: inc/top.default.html -->
<!-- -->
<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
<!-- -->
<!-- START: this line starts content from: inc/head.default.html -->
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>1993 cmills</title>
<meta name="description" content="IOCCC year: 1993 IOCCC winner: cmills winner index page">
<meta name="keywords" content="IOCCC,1993,cmills,winner index page">
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
<title>1993/cmills</title>
<meta name="description" content="1993 IOCCC winner cmills">
<meta name="keywords" content="IOCCC, 1993, IOCCC 1993, IOCCC winner, cmills">
</head>
<!-- END: this line ends content from: inc/head.default.html -->
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<body>
<h1>1993 cmills</h1>
<!-- END: this line ends content from: inc/body.default.html -->
<!-- START: this line starts content from: inc/header.default.html -->
<p>XXX - fake content until readme2index is working - XXX</p>
<div class="header">
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
<h1>The International Obfuscated C Code Contest</h1>
<h2>1993/cmills</h2>
</div>
<hr style="width:50%;text-align:left;margin-left:0">
<!-- END: this line ends content from: inc/header.default.html -->
<!-- START: this line starts content from: inc/topnav.mid.html -->
<!-- Start Nu Html Checker -->
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F1993%2Fcmills%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/1993/cmills/index.html</a></p>
<!-- End Nu Html Checker -->
<div class="topnav">
<a class="Left" href="../ant/index.html">&larr; ant</a>
<a class="Left" href="../index.html">&uarr; 1993 &uarr;</a>
<a class="Left" href="../dgibson/index.html">dgibson &rarr;</a>
<a class="Right" href="#inventory">Inventory</a>
</div>
<!-- END: this line ends content from: inc/topnav.mid.html -->
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<div class="row">
<!-- END: this line ends content from: inc/begin-row.default.html -->
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<div class="leftcolumn">
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
<!-- START: this line starts content from: inc/sidenav.default.html -->
<div class="sidenav">
<a href="#content">Jump to contents</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
<a href="/temp-test-ioccc/winners.html">People who have won</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
<a href="/temp-test-ioccc/faq.html">FAQ</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/bugs.html">Bugs &amp; (mis)features</a>
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
</div>
<hr>
<div class="sidenav">
<a href="#top">Jump to top</a>
</div>
<!-- END: this line ends content from: inc/sidenav.default.html -->
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</div>
<!-- END: this line ends content from: inc/end-leftcolumn.default.html -->
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<div class="rightcolumn">
<!-- END: this line ends content from: inc/begin-rightcolumn.default.html -->
<!-- START: this line starts content from: inc/before-content.default.html -->
<a name="content"></a>
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<!-- START: this line starts content generated by: bin/gen-author.sh -->
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
href="/temp-test-ioccc/winners.html#Christopher_Mills">Christopher
Mills</a><br> Location: <a
href="/temp-test-ioccc/location.html#US">US</a></p>
<!-- END: next line ends content generated by: bin/gen-author.sh -->
<h2 id="to-build">To build:</h2>
<p>We recommend you try the alt version first so you can get a better
idea of what this entry was like back in 1993. See the <a
href="#original-code">original code</a> section below to run the
original.</p>
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> alt</span></code></pre></div>
<p>NOTE: this entry requires the <code>X11/Xlib.h</code> header file and
the X11 library to compile. If you’re under macOS and do not know how to
install and use X11 programs see <a href="/faq.md#faq3_7">FAQ 3.7 - How
do I compile and use on macOS, an IOCCC winner that requires
X11?</a>.</p>
<p>To configure how many microseconds to sleep before updates try:</p>
<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> clobber SLEEP=200 alt</span></code></pre></div>
<h3 id="bugs-and-misfeatures">Bugs and (Mis)features:</h3>
<p>The current status of this entry is:</p>
<pre><code>STATUS: known bug - please help us fix</code></pre>
<p>For more detailed information see <a href="/bugs.md#1993-cmills">1993
cmills in bugs.md</a>.</p>
<h2 id="to-use">To use:</h2>
<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="va">DISPLAY</span><span class="op">=</span><span class="st">&quot;your_X_server_display&quot;</span></span>
<span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a><span class="bu">export</span> <span class="va">DISPLAY</span></span>
<span id="cb4-3"><a href="#cb4-3" aria-hidden="true" tabindex="-1"></a><span class="ex">./cmills.alt</span> <span class="pp">[</span><span class="ss">speed</span><span class="pp">]</span> <span class="co"># must be run on an X11 server</span></span></code></pre></div>
<p>where:</p>
<p><code>speed</code> is update speed from 1 to 9 (default is 9).</p>
<p>NOTE: in most cases <code>DISPLAY</code> should already be set.</p>
<h2 id="original-code">Original code:</h2>
<p>We recommend the version that uses <code>usleep(3)</code> to more
easily see what is going on but you can use the original without any
delays if you wish.</p>
<h3 id="original-build">Original build:</h3>
<div class="sourceCode" id="cb5"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> all</span></code></pre></div>
<h3 id="original-use">Original use:</h3>
<p>Use <code>cmills</code> as you would <code>cmills.alt</code>
above.</p>
<h2 id="judges-remarks">Judges’ remarks:</h2>
<p>From the San Jose Mercury News (May 15, 1993 page 20A “West Hackers
trounce East in computer quiz game”):</p>
<pre><code>&quot;Since 1984, a contest has been held on Usenet for the most
unreadable, creative, bizarre but working C program&quot;, Gates
said. &quot;What is the name of this contest&quot;
&quot;Windows,&quot; shot back Gassee, naming Microsoft&#39;s premier product
- a product over which Apple sued Microsoft five years ago. Not
the right answer - it&#39;s &quot;The Obfuscated C Contest [sic]&quot; - but
it brought down the house of Apple partisans...</code></pre>
<p>[The expression on Bill Gates’ face was a sight to behold, as
reported to us by several who were there].</p>
<p>You must set <code>$DISPLAY</code> in your environment or the program
will dump core. This is not a bug as the author documented it as a
feature. :-)</p>
<p>The optional argument is integer which controls the speed of the
program. By default the speed is 9. You may want to try 1.</p>
<p>You will have to kill the program (i.e., ^C) to stop it.</p>
<p>WARNING: Slow servers or servers with long request queues will
continue to ‘run’ for a while after you have killed the program.</p>
<p>This program makes your windows about as useful as their windows.
:-)</p>
<h2 id="authors-remarks">Author’s remarks:</h2>
<p>The program uses a single backing pixmap (which is the size of the
screen) for all of its subwindows (with a little bit of trickery to move
the offset around). This is much better (and faster) than the obvious
implementation which would require a full-screen pixmap and a separate
backing pixmap for each subwindow.</p>
<p>The chance that a window breaks is based on it’s kinetic energy,
which in turn is based on it’s area and speed. How silly!</p>
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
License:</h2>
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
Reserved. You are free to share and adapt this file under the terms of
this license:</p>
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
<p>For more information, see:
https://creativecommons.org/licenses/by-sa/4.0/</p>
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
<h1 id="inventory-for-1993cmills"><a name="inventory"></a>Inventory for
1993/cmills</h1>
<h2 id="primary-files">Primary files</h2>
<ul>
<li><a href="index.html">index.html</a> - winner home page</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/cmills/cmills.c">cmills.c</a>
- winning source</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/cmills/Makefile">Makefile</a>
- winner Makefile</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/cmills/cmills.alt.c">cmills.alt.c</a>
- alternative source</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/cmills/cmills.orig.c">cmills.orig.c</a>
- original source</li>
<li><a href="1993_cmills.tar.bz2">1993_cmills.tar.bz2</a> - download
winning source</li>
</ul>
<h2 id="secondary-files">Secondary files</h2>
<ul>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/cmills/.gitignore">.gitignore</a>
- list of files that should not be committed under git</li>
<li><a href=".path">.path</a> - directory path from top directory</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/cmills/.winner.json">.winner.json</a>
- description of winner in JSON</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/cmills/README.md">README.md</a>
- markdown source for index.html</li>
</ul>
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</div>
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<div class="footer">
<hr>
<h2>Coda</h2>
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F1993%2Fcmills%2Findex.html">Nu HTML check this web page</a></p>
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
</div>
<!-- END: this line ends content from: inc/footer.default.html -->
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</body>
</html>
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<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
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<!-- -->
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
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@@ -6,27 +8,254 @@
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
<!-- -->
<!-- file: 1993/dgibson/index.html created by: fake.gen_index.sh version: 1.0.5 2023-10-31 -->
<html lang="en">
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<!-- -->
<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
<!-- -->
<!-- START: this line starts content from: inc/head.default.html -->
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>1993 dgibson</title>
<meta name="description" content="IOCCC year: 1993 IOCCC winner: dgibson winner index page">
<meta name="keywords" content="IOCCC,1993,dgibson,winner index page">
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
<title>1993/dgibson</title>
<meta name="description" content="1993 IOCCC winner dgibson">
<meta name="keywords" content="IOCCC, 1993, IOCCC 1993, IOCCC winner, dgibson">
</head>
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<body>
<h1>1993 dgibson</h1>
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<p>XXX - fake content until readme2index is working - XXX</p>
<div class="header">
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
<h1>The International Obfuscated C Code Contest</h1>
<h2>1993/dgibson</h2>
</div>
<hr style="width:50%;text-align:left;margin-left:0">
<!-- END: this line ends content from: inc/header.default.html -->
<!-- START: this line starts content from: inc/topnav.mid.html -->
<!-- Start Nu Html Checker -->
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F1993%2Fdgibson%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/1993/dgibson/index.html</a></p>
<!-- End Nu Html Checker -->
<div class="topnav">
<a class="Left" href="../cmills/index.html">&larr; cmills</a>
<a class="Left" href="../index.html">&uarr; 1993 &uarr;</a>
<a class="Left" href="../ejb/index.html">ejb &rarr;</a>
<a class="Right" href="#inventory">Inventory</a>
</div>
<!-- END: this line ends content from: inc/topnav.mid.html -->
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<div class="row">
<!-- END: this line ends content from: inc/begin-row.default.html -->
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<div class="leftcolumn">
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
<!-- START: this line starts content from: inc/sidenav.default.html -->
<div class="sidenav">
<a href="#content">Jump to contents</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
<a href="/temp-test-ioccc/winners.html">People who have won</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
<a href="/temp-test-ioccc/faq.html">FAQ</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/bugs.html">Bugs &amp; (mis)features</a>
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
</div>
<hr>
<div class="sidenav">
<a href="#top">Jump to top</a>
</div>
<!-- END: this line ends content from: inc/sidenav.default.html -->
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</div>
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<div class="rightcolumn">
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<a name="content"></a>
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<!-- START: this line starts content generated by: bin/gen-author.sh -->
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
href="/temp-test-ioccc/winners.html#David_Gibson">David Gibson</a><br>
Location: <a href="/temp-test-ioccc/location.html#null">unknown</a></p>
<!-- END: next line ends content generated by: bin/gen-author.sh -->
<h2 id="to-build">To build:</h2>
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> all</span></code></pre></div>
<h2 id="to-use">To use:</h2>
<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./dgibson.sh</span> <span class="pp">[</span><span class="ss">datafile</span><span class="pp">]</span></span></code></pre></div>
<p>where:</p>
<p><code>datafile</code> is the initial pattern (default: <a
href="dgibson.data1">dgibson.data1</a>)</p>
<h2 id="try">Try:</h2>
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span></span></code></pre></div>
<h2 id="judges-remarks">Judges’ remarks:</h2>
<p>We have provided the shell script <a href="dgibson.sh">dgibson.sh</a>
to make it easier to run this entry. Run this shell script several times
to see what happens.</p>
<p>There are a number of data files available:</p>
<ul>
<li><a href="dgibson.data1">dgibson.data1</a></li>
<li><a href="dgibson.data2">dgibson.data2</a></li>
<li><a href="dgibson.data3">dgibson.data3</a></li>
<li><a href="dgibson.data4">dgibson.data4</a></li>
<li><a href="dgibson.data5">dgibson.data5</a></li>
</ul>
<p>For <a href="dgibson.data5">dgibson.data5</a> you will need a large
screen, lots of virtual memory and lots of time! The <a
href="try.sh">try.sh</a> script will run <a
href="dgibson.sh">dgibson.sh</a> on all the data files.</p>
<p>Good luck trying to use a debugger on this entry! Life is not always
pretty.</p>
<h2 id="authors-remarks">Author’s remarks:</h2>
<p>This program plays the <a
href="https://en.wikipedia.org/wiki/Conway&#39;s_Game_of_Life">Game of
Life</a>.</p>
<p>Life is a cellular automaton invented by J. H. Conway, in which each
of a rectangular grid of cells can be alive or dead, and cells with more
than 3 or less than 2 (out of 8) live neighbours die, and empty cells
with exactly 3 neighbours give birth.</p>
<h3 id="some-notes">Some notes</h3>
<ul>
<li>the “STAT n” information does not have to be present in the initial
configuration</li>
<li>the initial configuration should not have live cells around the
edges</li>
<li>the grid should be a perfect rectangle.</li>
</ul>
<p>Further features: the current generation number is preserved, and the
grid automatically resizes itself as the object gets too big or too
small.</p>
<p>When writing this program, my goal was to make each cell in the life
grid expand to the code which calculates the fate of that cell. In
addition, the resulting program is a single expression, which makes it
necessary to recurse <code>main()</code> in two “directions”
simultaneously.</p>
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
License:</h2>
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
Reserved. You are free to share and adapt this file under the terms of
this license:</p>
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
<p>For more information, see:
https://creativecommons.org/licenses/by-sa/4.0/</p>
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
<h1 id="inventory-for-1993dgibson"><a name="inventory"></a>Inventory for
1993/dgibson</h1>
<h2 id="primary-files">Primary files</h2>
<ul>
<li><a href="index.html">index.html</a> - winner home page</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/dgibson/dgibson.c">dgibson.c</a>
- winning source</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/dgibson/Makefile">Makefile</a>
- winner Makefile</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/dgibson/dgibson.orig.c">dgibson.orig.c</a>
- original source</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/dgibson/dgibson.sh">dgibson.sh</a>
- how to run</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/dgibson/try.sh">try.sh</a>
- how to run</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/dgibson/dgibson.data1">dgibson.data1</a>
- life cell layout</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/dgibson/dgibson.data2">dgibson.data2</a>
- life cell layout</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/dgibson/dgibson.data3">dgibson.data3</a>
- life cell layout</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/dgibson/dgibson.data4">dgibson.data4</a>
- life cell layout</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/dgibson/dgibson.data5">dgibson.data5</a>
- life cell layout</li>
<li><a href="1993_dgibson.tar.bz2">1993_dgibson.tar.bz2</a> - download
winning source</li>
</ul>
<h2 id="secondary-files">Secondary files</h2>
<ul>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/dgibson/.gitignore">.gitignore</a>
- list of files that should not be committed under git</li>
<li><a href=".path">.path</a> - directory path from top directory</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/dgibson/.winner.json">.winner.json</a>
- description of winner in JSON</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/dgibson/README.md">README.md</a>
- markdown source for index.html</li>
</ul>
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</div>
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<div class="footer">
<hr>
<h2>Coda</h2>
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F1993%2Fdgibson%2Findex.html">Nu HTML check this web page</a></p>
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
</div>
<!-- END: this line ends content from: inc/footer.default.html -->
<!-- START: this line starts content from: inc/bottom.default.html -->
</body>
</html>
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<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<!-- START: two lines up starts content from: inc/top.default.html -->
<!-- -->
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
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@@ -6,27 +8,258 @@
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
<!-- -->
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<html lang="en">
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<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
<!-- -->
<!-- START: this line starts content from: inc/head.default.html -->
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>1993 ejb</title>
<meta name="description" content="IOCCC year: 1993 IOCCC winner: ejb winner index page">
<meta name="keywords" content="IOCCC,1993,ejb,winner index page">
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
<title>1993/ejb</title>
<meta name="description" content="1993 IOCCC winner ejb">
<meta name="keywords" content="IOCCC, 1993, IOCCC 1993, IOCCC winner, ejb">
</head>
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<body>
<h1>1993 ejb</h1>
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<!-- START: this line starts content from: inc/header.default.html -->
<p>XXX - fake content until readme2index is working - XXX</p>
<div class="header">
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
<h1>The International Obfuscated C Code Contest</h1>
<h2>1993/ejb</h2>
</div>
<hr style="width:50%;text-align:left;margin-left:0">
<!-- END: this line ends content from: inc/header.default.html -->
<!-- START: this line starts content from: inc/topnav.mid.html -->
<!-- Start Nu Html Checker -->
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F1993%2Fejb%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/1993/ejb/index.html</a></p>
<!-- End Nu Html Checker -->
<div class="topnav">
<a class="Left" href="../dgibson/index.html">&larr; dgibson</a>
<a class="Left" href="../index.html">&uarr; 1993 &uarr;</a>
<a class="Left" href="../jonth/index.html">jonth &rarr;</a>
<a class="Right" href="#inventory">Inventory</a>
</div>
<!-- END: this line ends content from: inc/topnav.mid.html -->
<!-- START: this line starts content from: inc/begin-row.default.html -->
<div class="row">
<!-- END: this line ends content from: inc/begin-row.default.html -->
<!-- START: this line starts content from: inc/begin-leftcolumn.default.html -->
<div class="leftcolumn">
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
<!-- START: this line starts content from: inc/sidenav.default.html -->
<div class="sidenav">
<a href="#content">Jump to contents</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
<a href="/temp-test-ioccc/winners.html">People who have won</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
<a href="/temp-test-ioccc/faq.html">FAQ</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/bugs.html">Bugs &amp; (mis)features</a>
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
</div>
<hr>
<div class="sidenav">
<a href="#top">Jump to top</a>
</div>
<!-- END: this line ends content from: inc/sidenav.default.html -->
<!-- START: this line starts content from: inc/end-leftcolumn.default.html -->
</div>
<!-- END: this line ends content from: inc/end-leftcolumn.default.html -->
<!-- START: this line starts content from: inc/begin-rightcolumn.default.html -->
<div class="rightcolumn">
<!-- END: this line ends content from: inc/begin-rightcolumn.default.html -->
<!-- START: this line starts content from: inc/before-content.default.html -->
<a name="content"></a>
<!-- END: this line ends content from: inc/before-content.default.html -->
<!-- START: this line starts content generated by: bin/gen-author.sh -->
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
href="/temp-test-ioccc/winners.html#E_Jay_Berkenbilt">E. Jay
Berkenbilt</a><br> Location: <a
href="/temp-test-ioccc/location.html#null">unknown</a></p>
<!-- END: next line ends content generated by: bin/gen-author.sh -->
<h2 id="to-build">To build:</h2>
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> all</span></code></pre></div>
<h2 id="to-use">To use:</h2>
<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./ejb</span> level</span></code></pre></div>
<p>where:</p>
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">level</span> a value from <span class="at">-128</span> to 127</span></code></pre></div>
<h2 id="try">Try:</h2>
<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span></span></code></pre></div>
<h2 id="judges-remarks">Judges’ remarks:</h2>
<p>A negative argument plays the patience puzzle. An argument greater
than 0 plays the Tower of Hanoi puzzle. In either case the absolute
value of the argument specifies the size of the respective puzzle. Refer
to the files <a href="hanoi.md">hanoi.md</a> and <a
href="patience.md">patience.md</a> for more information on these
puzzles.</p>
<p>Of course, you need a different kind of “patience” if you give the
argument 127 to this program and want to see it finish!</p>
<p>We note that this also works under macOS just fine.</p>
<h2 id="authors-remarks">Author’s remarks:</h2>
<h3 id="what-this-program-does">What this program does</h3>
<h4 id="output-solution-to-towers-of-hanoi-for-five-rings">Output
solution to Towers of Hanoi for five rings:</h4>
<div class="sourceCode" id="cb5"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./ejb</span> 5</span></code></pre></div>
<p>The format of the output for the Towers of Hanoi case is simply a
text description of how to solve the puzzle.</p>
<h4 id="output-solution-to-the-patience-puzzle-for-six-rings">Output
solution to the Patience puzzle for six rings:</h4>
<div class="sourceCode" id="cb6"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./ejb</span> <span class="at">-6</span></span></code></pre></div>
<p>For the patience puzzle, the output is a sequence binary codes
representing successive states of the puzzle. The rightmost digit
represents the first ring. A <code>1</code> means the ring is on the
<code>U</code>; a <code>0</code> means it is off the <code>U</code>. The
program prints the word <code>"Invalid"</code> in response to illegal
command line parameters.</p>
<h3 id="motivation">Motivation</h3>
<p>Most people who have written software for other people have been
asked to count lines of code. Naturally, this brings up the
controversial question of exactly what defines a line of code. This
program serves to show that counting semicolons will not always provide
a meaningful measure of code size. This is especially true in this
program where the number of semicolons itself is ambiguous. Does it have
two or three? In addition, the only C keyword this program uses besides
type names and qualifiers is <code>return</code>, and the only function
defined in the code is <code>main()</code>. The level of complexity of
the program without multiple semicolons, statements, and functions is
achieved by abusing C operators, especially the comma operator.
Considerable use of <code>||</code>, <code>&amp;&amp;</code>, and
<code>?:</code> helps too. In addition, <code>main()</code> is called
recursively. The NULL pointer that terminates <code>argv</code> is used
to pass additional information into <code>main()</code>. Even though the
algorithms used by this code are simple, this program is still hard to
follow even when indented properly. (It is pretty hard to indent this
code reasonably, however.)</p>
<p>Although this program has only been tested on UNIX systems it will
probably run on just about any machine with an ANSI C compiler. It does
not use the C preprocessor at all. The only functions it uses are
<code>atoi()</code>, <code>malloc()</code>, <code>memset()</code>,
<code>printf()</code>, and <code>puts()</code>. It does, however,
require that the architecture it runs on have bytes that are at least
eight bits long and pointers that are at least four bytes long. In
addition, it requires an ANSI compiler since it uses
<code>signed char</code> and ANSI-style function declarations.</p>
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
License:</h2>
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
Reserved. You are free to share and adapt this file under the terms of
this license:</p>
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
<p>For more information, see:
https://creativecommons.org/licenses/by-sa/4.0/</p>
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
<h1 id="inventory-for-1993ejb"><a name="inventory"></a>Inventory for
1993/ejb</h1>
<h2 id="primary-files">Primary files</h2>
<ul>
<li><a href="index.html">index.html</a> - winner home page</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ejb/ejb.c">ejb.c</a>
- winning source</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ejb/Makefile">Makefile</a>
- winner Makefile</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ejb/ejb.orig.c">ejb.orig.c</a>
- original source</li>
<li><a href="hanoi.html">hanoi.html</a> - about the Towers of Hanoi
puzzle</li>
<li><a href="patience.html">patience.html</a> - about the Patience
puzzle</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ejb/try.sh">try.sh</a>
- how to run</li>
<li><a href="1993_ejb.tar.bz2">1993_ejb.tar.bz2</a> - download winning
source</li>
</ul>
<h2 id="secondary-files">Secondary files</h2>
<ul>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ejb/.gitignore">.gitignore</a>
- list of files that should not be committed under git</li>
<li><a href=".path">.path</a> - directory path from top directory</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ejb/.winner.json">.winner.json</a>
- description of winner in JSON</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ejb/README.md">README.md</a>
- markdown source for index.html</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ejb/hanoi.md">hanoi.md</a>
- markdown source for hanoi.html</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ejb/patience.md">patience.md</a>
- markdown source for patience.html</li>
</ul>
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</div>
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<!-- START: this line starts content from: inc/footer.default.html -->
<div class="footer">
<hr>
<h2>Coda</h2>
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F1993%2Fejb%2Findex.html">Nu HTML check this web page</a></p>
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
</div>
<!-- END: this line ends content from: inc/footer.default.html -->
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</body>
</html>
<!-- END: this line ends content from: inc/bottom.default.html -->
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<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
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<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
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@@ -6,27 +8,205 @@
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
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<!-- file: 1993/jonth/index.html created by: fake.gen_index.sh version: 1.0.5 2023-10-31 -->
<html lang="en">
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<!-- -->
<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
<!-- -->
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<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>1993 jonth</title>
<meta name="description" content="IOCCC year: 1993 IOCCC winner: jonth winner index page">
<meta name="keywords" content="IOCCC,1993,jonth,winner index page">
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
<title>1993/jonth</title>
<meta name="description" content="1993 IOCCC winner jonth">
<meta name="keywords" content="IOCCC, 1993, IOCCC 1993, IOCCC winner, jonth">
</head>
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<body>
<h1>1993 jonth</h1>
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<!-- START: this line starts content from: inc/header.default.html -->
<p>XXX - fake content until readme2index is working - XXX</p>
<div class="header">
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
<h1>The International Obfuscated C Code Contest</h1>
<h2>1993/jonth</h2>
</div>
<hr style="width:50%;text-align:left;margin-left:0">
<!-- END: this line ends content from: inc/header.default.html -->
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<!-- Start Nu Html Checker -->
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F1993%2Fjonth%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/1993/jonth/index.html</a></p>
<!-- End Nu Html Checker -->
<div class="topnav">
<a class="Left" href="../ejb/index.html">&larr; ejb</a>
<a class="Left" href="../index.html">&uarr; 1993 &uarr;</a>
<a class="Left" href="../leo/index.html">leo &rarr;</a>
<a class="Right" href="#inventory">Inventory</a>
</div>
<!-- END: this line ends content from: inc/topnav.mid.html -->
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<div class="row">
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<div class="leftcolumn">
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
<!-- START: this line starts content from: inc/sidenav.default.html -->
<div class="sidenav">
<a href="#content">Jump to contents</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
<a href="/temp-test-ioccc/winners.html">People who have won</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
<a href="/temp-test-ioccc/faq.html">FAQ</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/bugs.html">Bugs &amp; (mis)features</a>
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
</div>
<hr>
<div class="sidenav">
<a href="#top">Jump to top</a>
</div>
<!-- END: this line ends content from: inc/sidenav.default.html -->
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</div>
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<div class="rightcolumn">
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<a name="content"></a>
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<!-- START: this line starts content generated by: bin/gen-author.sh -->
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
href="/temp-test-ioccc/winners.html#Jon_Thingvold">Jon Thingvold</a><br>
Location: <a href="/temp-test-ioccc/location.html#NO">NO</a></p>
<!-- END: next line ends content generated by: bin/gen-author.sh -->
<h2 id="to-build">To build:</h2>
<p>NOTE: this entry requires <code>X11/Xlib.h</code> header file and the
X11 library to compile. macOS users running Mountain Lion and later will
need to download and install <a
href="https://www.xquartz.org">XQuartz</a> in order to compile and run
this entry.</p>
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> all</span></code></pre></div>
<h2 id="to-use">To use:</h2>
<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./jonth</span> <span class="co"># must be run on an X11 server</span></span></code></pre></div>
<h2 id="judges-remarks">Judges’ remarks:</h2>
<p>Use <code>h</code> and <code>l</code> to shift objects left or right.
Use <code>k</code> to rotate and press SPACE to drop.</p>
<p>This program’s output may be even more obfuscated when played on
inverse video. :-)</p>
<h2 id="authors-remarks">Author’s remarks:</h2>
<p>This is <code>jonth</code> (<code>jon's t(h)etris</code>) for the X
Window System.</p>
<p>This program is also an example of data abstraction. The X array is
after initialization hidden by the well defined macros <code>t</code>,
<code>u</code> and <code>F</code>.</p>
<p>This program is highly portable as it runs on a “Notebook” size
SPARC. This program will not work on machines where
<code>sizeof(int)!=sizeof(void *)</code>.</p>
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
License:</h2>
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
Reserved. You are free to share and adapt this file under the terms of
this license:</p>
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
<p>For more information, see:
https://creativecommons.org/licenses/by-sa/4.0/</p>
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
<h1 id="inventory-for-1993jonth"><a name="inventory"></a>Inventory for
1993/jonth</h1>
<h2 id="primary-files">Primary files</h2>
<ul>
<li><a href="index.html">index.html</a> - winner home page</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/jonth/jonth.c">jonth.c</a>
- winning source</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/jonth/Makefile">Makefile</a>
- winner Makefile</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/jonth/jonth.orig.c">jonth.orig.c</a>
- original source</li>
<li><a href="1993_jonth.tar.bz2">1993_jonth.tar.bz2</a> - download
winning source</li>
</ul>
<h2 id="secondary-files">Secondary files</h2>
<ul>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/jonth/.gitignore">.gitignore</a>
- list of files that should not be committed under git</li>
<li><a href=".path">.path</a> - directory path from top directory</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/jonth/.winner.json">.winner.json</a>
- description of winner in JSON</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/jonth/README.md">README.md</a>
- markdown source for index.html</li>
</ul>
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</div>
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<div class="footer">
<hr>
<h2>Coda</h2>
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F1993%2Fjonth%2Findex.html">Nu HTML check this web page</a></p>
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
</div>
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</body>
</html>
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<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<!-- START: two lines up starts content from: inc/top.default.html -->
<!-- -->
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
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@@ -6,27 +8,253 @@
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<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>1993 leo</title>
<meta name="description" content="IOCCC year: 1993 IOCCC winner: leo winner index page">
<meta name="keywords" content="IOCCC,1993,leo,winner index page">
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
<title>1993/leo</title>
<meta name="description" content="1993 IOCCC winner leo">
<meta name="keywords" content="IOCCC, 1993, IOCCC 1993, IOCCC winner, leo">
</head>
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<body>
<h1>1993 leo</h1>
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<p>XXX - fake content until readme2index is working - XXX</p>
<div class="header">
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
<h1>The International Obfuscated C Code Contest</h1>
<h2>1993/leo</h2>
</div>
<hr style="width:50%;text-align:left;margin-left:0">
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<!-- START: this line starts content from: inc/topnav.mid.html -->
<!-- Start Nu Html Checker -->
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F1993%2Fleo%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/1993/leo/index.html</a></p>
<!-- End Nu Html Checker -->
<div class="topnav">
<a class="Left" href="../jonth/index.html">&larr; jonth</a>
<a class="Left" href="../index.html">&uarr; 1993 &uarr;</a>
<a class="Left" href="../lmfjyh/index.html">lmfjyh &rarr;</a>
<a class="Right" href="#inventory">Inventory</a>
</div>
<!-- END: this line ends content from: inc/topnav.mid.html -->
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<div class="row">
<!-- END: this line ends content from: inc/begin-row.default.html -->
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<div class="leftcolumn">
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
<!-- START: this line starts content from: inc/sidenav.default.html -->
<div class="sidenav">
<a href="#content">Jump to contents</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
<a href="/temp-test-ioccc/winners.html">People who have won</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
<a href="/temp-test-ioccc/faq.html">FAQ</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/bugs.html">Bugs &amp; (mis)features</a>
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
</div>
<hr>
<div class="sidenav">
<a href="#top">Jump to top</a>
</div>
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</div>
<!-- END: this line ends content from: inc/end-leftcolumn.default.html -->
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<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
href="/temp-test-ioccc/winners.html#Leonid_A_Broukhis">Leonid A.
Broukhis</a><br> Location: <a
href="/temp-test-ioccc/location.html#US">US</a></p>
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<h2 id="to-build">To build:</h2>
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> all</span></code></pre></div>
<h2 id="to-use">To use:</h2>
<p>To have the computer guess:</p>
<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./leo</span> <span class="pp">[</span><span class="ss">colors</span><span class="pp">]</span></span></code></pre></div>
<p>To guess the computer’s number:</p>
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./mind</span> <span class="pp">[</span><span class="ss">colors</span><span class="pp">]</span></span></code></pre></div>
<p>where:</p>
<p>[colors] is the number of possible colors (1 to 15) (default: 6)</p>
<h2 id="judges-remarks">Judges’ remarks:</h2>
<p>By default, the number of colors is 6. You may specify a value of
between 1 and 15 colors. See the author’s notes for instructions of how
to play.</p>
<p>We look forward to more entries from the newer members of the
International Internet community.</p>
<h2 id="authors-remarks">Author’s remarks:</h2>
<p>This program plays
[Mastermind](https://en.wikipedia.org/wiki/Mastermind_(board_game), if
you call it by a name ending by ‘d’, otherwise it <em>solves</em>
Mastermind. Call it without parameters to use 6 digits (colors), or
indicate the number of possible digits (you cannot change the number of
positions so easily).</p>
<p>The number in parentheses is the number of possible combinations,
based on previous questions and answers. If you solve the puzzle, “(1)”
indicates that your previous moves are enough to give correct answer. If
the program acts as solver and terminates prematurely, it means that
you’re mistaken in your answers to its question(s). Question marks
indicate the number of digits you have to enter (either 4 when you guess
or 2 when computer guesses).</p>
<p>Note that the program uses the same code for both player and solver,
and the only place where it makes a difference is the interactive part.
Many obfuscations have been made to achieve this. An expression giving
<code>(bulls * 16 + cows)</code> from two numbers is, however, quite
straightforward :-) , as well as the arithmetic of binary coded
colors-base numbers is.</p>
<h3
id="limitations-maximum-number-of-digits-colors-is-14-1..f.">Limitations:
maximum number of digits (colors) is 14 (1..F).</h3>
<p>Suggestions: Use terminal (or emulator) with non-destructive
backspaces. Do “disable scrolling” on cmdtool or similar emulators.</p>
<h4 id="bugs">Bugs</h4>
<p>Please don’t type ^D at the prompt!!</p>
<h5 id="example-suppose-we-think-of-1234">EXAMPLE: Suppose we think of
1234</h5>
<pre><code>$ ./leo
(1296): 6433
?? 12 # one 3 is a bull, another is a cow, and 4 is a cow
(160): 5363
?? 02 # both 3&#39;s are cows
(21): 4231
?? 22 # 2 and 3 are bulls, 4 and 1 are cows
(2): 4132
?? 13 # 3 is a bull; 1, 2 and 4 are cows
(1): 1234
?? 40 # you may enter everything there</code></pre>
<h5 id="example-guess-the-computers-number">EXAMPLE: Guess the
computer’s number</h5>
<pre><code>$ ./mind
(1296): ???? 1122 # my strategy isn&#39;t the best, just as example
00
(256): ???? 3344
20
(18): ???? 5566
02
(6): ???? 3654
11
(2): ???? 3355
00
(1): ???? 6444
40 # we have guessed the number</code></pre>
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
License:</h2>
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
Reserved. You are free to share and adapt this file under the terms of
this license:</p>
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
<p>For more information, see:
https://creativecommons.org/licenses/by-sa/4.0/</p>
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<h1 id="inventory-for-1993leo"><a name="inventory"></a>Inventory for
1993/leo</h1>
<h2 id="primary-files">Primary files</h2>
<ul>
<li><a href="index.html">index.html</a> - winner home page</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/leo/leo.c">leo.c</a>
- winning source</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/leo/Makefile">Makefile</a>
- winner Makefile</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/leo/leo.orig.c">leo.orig.c</a>
- original source</li>
<li><a href="1993_leo.tar.bz2">1993_leo.tar.bz2</a> - download winning
source</li>
</ul>
<h2 id="secondary-files">Secondary files</h2>
<ul>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/leo/.gitignore">.gitignore</a>
- list of files that should not be committed under git</li>
<li><a href=".path">.path</a> - directory path from top directory</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/leo/.winner.json">.winner.json</a>
- description of winner in JSON</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/leo/README.md">README.md</a>
- markdown source for index.html</li>
</ul>
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<div class="footer">
<hr>
<h2>Coda</h2>
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F1993%2Fleo%2Findex.html">Nu HTML check this web page</a></p>
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
</div>
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</html>
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+324 -13
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
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<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>1993 lmfjyh</title>
<meta name="description" content="IOCCC year: 1993 IOCCC winner: lmfjyh winner index page">
<meta name="keywords" content="IOCCC,1993,lmfjyh,winner index page">
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
<title>1993/lmfjyh</title>
<meta name="description" content="1993 IOCCC winner lmfjyh">
<meta name="keywords" content="IOCCC, 1993, IOCCC 1993, IOCCC winner, lmfjyh">
</head>
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<body>
<h1>1993 lmfjyh</h1>
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<p>XXX - fake content until readme2index is working - XXX</p>
<div class="header">
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
<h1>The International Obfuscated C Code Contest</h1>
<h2>1993/lmfjyh</h2>
</div>
<hr style="width:50%;text-align:left;margin-left:0">
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<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F1993%2Flmfjyh%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/1993/lmfjyh/index.html</a></p>
<!-- End Nu Html Checker -->
<div class="topnav">
<a class="Left" href="../leo/index.html">&larr; leo</a>
<a class="Left" href="../index.html">&uarr; 1993 &uarr;</a>
<a class="Left" href="../plummer/index.html">plummer &rarr;</a>
<a class="Right" href="#inventory">Inventory</a>
</div>
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<div class="sidenav">
<a href="#content">Jump to contents</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
<a href="/temp-test-ioccc/winners.html">People who have won</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
<a href="/temp-test-ioccc/faq.html">FAQ</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/bugs.html">Bugs &amp; (mis)features</a>
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
</div>
<hr>
<div class="sidenav">
<a href="#top">Jump to top</a>
</div>
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<a name="content"></a>
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<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
href="/temp-test-ioccc/winners.html#Jyrki_Holopainen">Jyrki
Holopainen</a><br> Location: <a
href="/temp-test-ioccc/location.html#FI">FI</a></p>
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<h2 id="to-build">To build:</h2>
<p>If you have gcc &lt; 2.3.3 you can build this entry like:</p>
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> all</span></code></pre></div>
<p>This will create a file called
<code>";main(){puts("Hello World!");}char*C=".c</code> which would print
<code>Hello World!</code> when compiled.</p>
<p>For an explanation of why and how this works see the author’s
remarks. The gist of the entry itself, however, is the file name
<em>itself <strong>is</strong> the code</em>.</p>
<p>NOTE: we delete the temporary file whether or not the compilation
succeeds because it is an unsafe filename and not doing so would cause
problems for anyone running <code>make</code>.</p>
<p>This entry will not compile with gcc &lt; 2.3.3 as it relies on a bug
which was fixed in gcc 2.3.3 which was fixed a very long time ago now.
There is an alternate version for <a
href="https://www.collinsdictionary.com/dictionary/english/everyone">those
of us</a> with gcc &gt;= 2.3.3. See <a href="#alternate-code">Alternate
code</a> section below for more details.</p>
<p>However, there is an another version that will be compiled in the
extremely likely case this fails. This should happen automatically. See
<a href="#alternate-code">Alternate code</a> below for more details on
it.</p>
<h3 id="bugs-and-misfeatures">Bugs and (Mis)features:</h3>
<p>The current status of this entry is:</p>
<pre><code>STATUS: INABIAF - please **DO NOT** fix</code></pre>
<p>For more detailed information see <a href="/bugs.md#1993-lmfjyh">1993
lmfjyh in bugs.md</a>.</p>
<h2 id="to-use">To use:</h2>
<p>If you have gcc &lt; 2.3.3 (i.e. the entry can compile):</p>
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./lmfjyh</span></span></code></pre></div>
<h2 id="alternate-code">Alternate code:</h2>
<p>This version does what the code did but in a way that will work with
modern compilers. We’d like to say there’s something special about it
but there isn’t. Nonetheless it will be compiled in case the original
entry fails to compile (which will happen unless you have gcc &lt;
2.3.3.</p>
<h3 id="alternate-build">Alternate build:</h3>
<p>Should you wish to build this version manually:</p>
<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> alt</span></code></pre></div>
<h3 id="alternate-use">Alternate use:</h3>
<p>Use <code>lmfjyh.alt</code> as you would <code>lmfjyh</code> above.
Note that other code could also be done with the bug that the entry
abuses but that would have to be manually programmed for this version;
see the author’s remarks for more details.</p>
<h2 id="judges-remarks">Judges’ remarks:</h2>
<p>There’s more than one way to get around disk quotas. :-)</p>
<h2 id="authors-remarks">Author’s remarks:</h2>
<p>“Practical and efficient method of compressing source code”.</p>
<h3 id="introduction">Introduction</h3>
<p>I will shortly present a totally new compression method. It may be
used to compress any types of files, but it works best with C-source
code.</p>
<p>As an example, I have taken a simple “Hello world!” program that
should be familiar to all C-programmers.</p>
<h4 id="listing-1-a-simple-hello-world-program">Listing 1: A simple
“Hello World” program</h4>
<div class="sourceCode" id="cb5"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a>main<span class="op">()</span></span>
<span id="cb5-2"><a href="#cb5-2" aria-hidden="true" tabindex="-1"></a><span class="op">{</span></span>
<span id="cb5-3"><a href="#cb5-3" aria-hidden="true" tabindex="-1"></a> puts<span class="op">(</span><span class="st">&quot;Hello World!&quot;</span><span class="op">);</span></span>
<span id="cb5-4"><a href="#cb5-4" aria-hidden="true" tabindex="-1"></a><span class="op">}</span></span></code></pre></div>
<h3 id="packing-method">Packing method</h3>
<p>Normally a file name is used only to identify the file, but this new
revolutionary method introduces a totally new concept: <strong>THE FILE
NAME <em>IS</em> THE PROGRAM</strong>. There is no need to waste
valuable disk space to store source code. The program is embedded in the
file name, only a minor portion of it is inside the file.</p>
<h4 id="listing-2-compressed-hello-world">Listing 2: Compressed “Hello
world”</h4>
<div class="sourceCode" id="cb6"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="dt">char</span><span class="op">*</span>_<span class="op">=</span>__FILE__<span class="op">;</span></span></code></pre></div>
<h4 id="listing-3-code-embedded-in-the-file-name">Listing 3: Code
embedded in the file name</h4>
<div class="sourceCode" id="cb7"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a><span class="st">&quot;;main(){puts(&quot;</span>Hello World<span class="op">!</span><span class="st">&quot;);}char*C=&quot;</span><span class="op">.</span>c</span></code></pre></div>
<p>The sample program in listing 1 is 36 bytes long. By using the new
compression method, the example program may be squeezed to sixteen
bytes. In the example the compression ratio is 2:1. It is evident that
the longer the program is, the better the compression ratio is. The
maximum compression ratio in a UNIX environment is 254:16 which equals
approximately to 16:1. By using the method a one megabyte of source code
file can be compressed to 64 kilobytes.</p>
<p>One might easily think that the program could be compressed to a
single byte by writing a one character long preprocessor directive in
the source file and defining the actual source code in the command line,
e.g. <code>cc hello.c -DX='main(){puts ...'</code>. With this method
nothing is gained, since the compiling commands must be stored in a
file, and that takes even more space than writing the code in a source
file as presented in listing 1.</p>
<h3 id="packing-files-in-a-unix-environment">Packing files in a UNIX
environment</h3>
<p>In a UNIX environment it is possible to write almost any program by
including the code in file names. Since <code>/</code> is used to
separate path components and cannot therefore exist in a file name, all
features of the C language cannot be used.</p>
<p>In C, the <code>/</code> is used as a division operator and it may
also be a part of a comment start and end identifier. This, however, is
not a dangerous limitation, since practice has shown that comments are
almost totally unnecessary. A real programmer can more easily understand
pure source code, and misleading comments are disastrous. The division
operation may be replaced with <code>pow(x, -1)</code> and
multiplication when using real numbers or with <code>div()</code>
function when using integers.</p>
<p>Large programs must be separated into small modules. This enforces
people to write better programs, since monolithic programming style
cannot be used. Program development will also be faster, no extra code
needs be recompiled after changes have been made.</p>
<h3 id="usage-with-currently-available-tools">Usage with currently
available tools</h3>
<p>I have tested how well this new method works with currently available
programming tools.</p>
<p>Any ANSI conforming C-compiler that runs under a REAL operating
system should be able to compile the code (there might be problems with
some older UNIX variants).</p>
<h3 id="compilers">Compilers</h3>
<p>These worked:</p>
<ul>
<li>gcc versions 2.0, 2.1, 2.3.2 (ld failed at AIX with gcc 2.1)</li>
<li>cc (HP-UX)</li>
<li>cc (VAX)</li>
</ul>
<p>These failed miserably:</p>
<ul>
<li>cc (SunOS/Solaris) - could not start cpp properly</li>
<li>cc/xlc (AIX) - could not open source</li>
</ul>
<h3 id="other-tools">Other tools</h3>
<h4 id="debuggers-tested-at-sunos-4.1.2">Debuggers: (tested at SunOS
4.1.2)</h4>
<ul>
<li><p><code>dbx</code> - Quit with a very ‘informative’ error message:
<code>"dbx: fatal error: Is a directory"</code></p></li>
<li><p>gdb - Printed almost the same error message
<code>": Is a directory"</code>. It was, however, possible to step
through the code but not list it.</p></li>
</ul>
<h4 id="lints">Lints</h4>
<p>None of the lints tested environments were able to parse the
file.</p>
<h3 id="conclusions">Conclusions</h3>
<p>The method can be used to compress any type of file and the
compression ratios are even better when compressing files other than C
source. For example plain text files may be compressed with INFINITE
compression ratio. It is trivial task to compress a 100 kilobytes long
text file in about 400 files whose lengths are zero bytes. The drawback
is that the files must be unpacked before they can be used, so a large
amount of temporary disk space is needed, while C source is totally
usable in the compressed form.</p>
<p>Evidently, there is a long way to go before this new programming
technique may be widely used, since currently there are only few tools
supporting it. The advantages over the traditional methods are, however,
so great that there is no doubt that this method will be new
standard.</p>
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
License:</h2>
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
Reserved. You are free to share and adapt this file under the terms of
this license:</p>
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
<p>For more information, see:
https://creativecommons.org/licenses/by-sa/4.0/</p>
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
<h1 id="inventory-for-1993lmfjyh"><a name="inventory"></a>Inventory for
1993/lmfjyh</h1>
<h2 id="primary-files">Primary files</h2>
<ul>
<li><a href="index.html">index.html</a> - winner home page</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/lmfjyh/lmfjyh.c">lmfjyh.c</a>
- winning source</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/lmfjyh/Makefile">Makefile</a>
- winner Makefile</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/lmfjyh/lmfjyh.alt.c">lmfjyh.alt.c</a>
- alternative source</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/lmfjyh/lmfjyh.orig.c">lmfjyh.orig.c</a>
- original source</li>
<li><a href="1993_lmfjyh.tar.bz2">1993_lmfjyh.tar.bz2</a> - download
winning source</li>
</ul>
<h2 id="secondary-files">Secondary files</h2>
<ul>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/lmfjyh/.gitignore">.gitignore</a>
- list of files that should not be committed under git</li>
<li><a href=".path">.path</a> - directory path from top directory</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/lmfjyh/.winner.json">.winner.json</a>
- description of winner in JSON</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/lmfjyh/README.md">README.md</a>
- markdown source for index.html</li>
</ul>
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<div class="footer">
<hr>
<h2>Coda</h2>
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F1993%2Flmfjyh%2Findex.html">Nu HTML check this web page</a></p>
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
</div>
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</html>
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"display_via_github" : true,
"winners_text" : "original source"
},
{
"file_path" : "try.alt.sh",
"inventory_order" : 100,
"OK_to_edit" : true,
"display_as" : "shellscript",
"display_via_github" : true,
"winners_text" : "how to run alternative code"
},
{
"file_path" : "try.sh",
"inventory_order" : 100,
"OK_to_edit" : true,
"display_as" : "shellscript",
"display_via_github" : true,
"winners_text" : "how to run"
},
{
"file_path" : "1993_plummer.tar.bz2",
"inventory_order" : 300,
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<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
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<html lang="en">
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<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>1993 plummer</title>
<meta name="description" content="IOCCC year: 1993 IOCCC winner: plummer winner index page">
<meta name="keywords" content="IOCCC,1993,plummer,winner index page">
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
<title>1993/plummer</title>
<meta name="description" content="1993 IOCCC winner plummer">
<meta name="keywords" content="IOCCC, 1993, IOCCC 1993, IOCCC winner, plummer">
</head>
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<body>
<h1>1993 plummer</h1>
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<p>XXX - fake content until readme2index is working - XXX</p>
<div class="header">
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
<h1>The International Obfuscated C Code Contest</h1>
<h2>1993/plummer</h2>
</div>
<hr style="width:50%;text-align:left;margin-left:0">
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<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F1993%2Fplummer%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/1993/plummer/index.html</a></p>
<!-- End Nu Html Checker -->
<div class="topnav">
<a class="Left" href="../lmfjyh/index.html">&larr; lmfjyh</a>
<a class="Left" href="../index.html">&uarr; 1993 &uarr;</a>
<a class="Left" href="../rince/index.html">rince &rarr;</a>
<a class="Right" href="#inventory">Inventory</a>
</div>
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<div class="sidenav">
<a href="#content">Jump to contents</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
<a href="/temp-test-ioccc/winners.html">People who have won</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
<a href="/temp-test-ioccc/faq.html">FAQ</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/bugs.html">Bugs &amp; (mis)features</a>
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
</div>
<hr>
<div class="sidenav">
<a href="#top">Jump to top</a>
</div>
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<a name="content"></a>
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<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
href="/temp-test-ioccc/winners.html#Mark_Plummer">Mark Plummer</a><br>
Location: <a href="/temp-test-ioccc/location.html#null">unknown</a></p>
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<h2 id="to-build">To build:</h2>
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> alt</span></code></pre></div>
<p>We recommend that you try the alternate version first to get a better
idea of what this entry looked like back in 1993. The alternate version
sleeps (via <code>usleep(3)</code>) in between writes, defaulting at
1000 microseconds (but reconfigurable). If you wish to see the original
entry then see <a href="#original-code">original code</a> below.</p>
<p>If you wish to speed the entry up, say to 500 microseconds between
writes, try:</p>
<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> clobber SLEEP=500 alt</span></code></pre></div>
<p>Alternatively if you wish to slow it down, say to 1500 microseconds
between writes, try:</p>
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> clobber SLEEP=1500 alt</span></code></pre></div>
<h2 id="to-use">To use:</h2>
<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./plummer.alt</span> number arg</span></code></pre></div>
<p>where:</p>
<ul>
<li>number is a number (try 21701)</li>
<li>arg is any argument</li>
</ul>
<p>Wait until you’re bored enough to send intr/ctrl-c to exit or until
the <a href="https://hitchhikers.fandom.com/wiki/Vogon">Vogons</a> build
that <a href="https://hitchhikers.fandom.com/wiki/Bypass">hyperspace
bypass</a>.</p>
<h2 id="try">Try:</h2>
<div class="sourceCode" id="cb5"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.alt.sh</span></span>
<span id="cb5-2"><a href="#cb5-2" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb5-3"><a href="#cb5-3" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.alt.sh</span> 21701</span>
<span id="cb5-4"><a href="#cb5-4" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb5-5"><a href="#cb5-5" aria-hidden="true" tabindex="-1"></a><span class="va">SLEEP</span><span class="op">=</span>500 <span class="ex">./try.alt.sh</span></span>
<span id="cb5-6"><a href="#cb5-6" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb5-7"><a href="#cb5-7" aria-hidden="true" tabindex="-1"></a><span class="va">SLEEP</span><span class="op">=</span>900 <span class="ex">./try.alt.sh</span> 789789789789789</span>
<span id="cb5-8"><a href="#cb5-8" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb5-9"><a href="#cb5-9" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.alt.sh</span> 789789789</span>
<span id="cb5-10"><a href="#cb5-10" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb5-11"><a href="#cb5-11" aria-hidden="true" tabindex="-1"></a><span class="va">SLEEP</span><span class="op">=</span>400 <span class="ex">./try.alt.sh</span> 42424242424242</span>
<span id="cb5-12"><a href="#cb5-12" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb5-13"><a href="#cb5-13" aria-hidden="true" tabindex="-1"></a><span class="va">SLEEP</span><span class="op">=</span>1000 <span class="ex">./try.alt.sh</span> xyzzyzzyx</span>
<span id="cb5-14"><a href="#cb5-14" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb5-15"><a href="#cb5-15" aria-hidden="true" tabindex="-1"></a><span class="va">SLEEP</span><span class="op">=</span>1200 <span class="ex">./try.alt.sh</span> xyzzyzzyx 5555</span></code></pre></div>
<h2 id="original-code">Original code:</h2>
<p>This version, the original, does not sleep in between writes, and is
thus much faster (depending on the <code>SLEEP</code> parameter
specified in the build of <code>alt</code>, of course).</p>
<h3 id="original-build">Original build:</h3>
<div class="sourceCode" id="cb6"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> all</span></code></pre></div>
<h3 id="original-use">Original use:</h3>
<p>Use <code>plummer</code> as you would <code>plummer.alt</code>
above.</p>
<h3 id="original-try">Original try:</h3>
<div class="sourceCode" id="cb7"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span></span>
<span id="cb7-2"><a href="#cb7-2" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb7-3"><a href="#cb7-3" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span> 21701</span>
<span id="cb7-4"><a href="#cb7-4" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb7-5"><a href="#cb7-5" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span> 789789789789789</span>
<span id="cb7-6"><a href="#cb7-6" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb7-7"><a href="#cb7-7" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span> 789789789</span>
<span id="cb7-8"><a href="#cb7-8" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb7-9"><a href="#cb7-9" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span> 42424242424242</span>
<span id="cb7-10"><a href="#cb7-10" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb7-11"><a href="#cb7-11" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span> xyzzyzzyx</span>
<span id="cb7-12"><a href="#cb7-12" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb7-13"><a href="#cb7-13" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span> xyzzyzzyx 5555</span></code></pre></div>
<h2 id="judges-remarks">Judges’ remarks:</h2>
<p>For extra credit: What happens when ‘number’ contains non-numeric
characters, and why?</p>
<h2 id="authors-remarks">Author’s remarks:</h2>
<p>This program prints out all numbers up to a given number of digits on
a single line. When the largest number is reached, the program starts
again with 0. It takes two arguments: the first argument specifies the
number to start counting from and uses leading <code>0</code>s to
indicate the number of digits, the second argument can be anything but
must be present.</p>
<p>Variable names are single characters chosen for their similarity to
other characters (<code>O</code> for <code>0</code> (zero),
<code>l</code> for <code>1</code> (one), <code>S</code> for
<code>5</code> (five) in some fonts, and <code>_</code> for … well
nothing really, but it is easy to miss). To prevent the need for
<code>strlen()</code>, the fact that argv is laid out sequentially is
exploited
(i.e. <code>argv[i + 1] == argv[i] + strlen(argv[i]) + 1</code>). This
is not portable (by the books), but it seems to work everywhere I try
(actually, for VMS, that only holds for <code>i &gt; 1</code>). Also, I
depend on the fact that a carriage return causes the line just written
to be overwritten. <code>lint</code> (and most compilers) complain that
there is no control path leading to a return from <code>main()</code>.
At 125 characters, it still fits on a single line (for those of us who
don’t mind ruining our eyes with 132 column screens).</p>
<h3 id="spoiler">Spoiler:</h3>
<p>The first statement points the base of <code>l</code> (the argument
vector) to be the first argument by incrementing it. It then assigns
<code>O</code> to point to the character before the first character of
the second argument which also happens to be the NUL termination of the
first argument. <code>*O</code> gets a <code>\r</code> assigned to it.
Finally <code>0</code> is assigned to the first character of the second
argument which has the effect of NUL terminating the first argument
after the carriage return had removed its NUL termination. I really
tried to make the last part of that statement part of the original
expression, but the best I could do was attach it with a comma (against
the advice of K&amp;R). The for loop runs the next for loop continuously
(actually until the machine crashes or the user gets tired of seeing the
counting). The next for loop is the meat of the program. In the
initialization statement, the string pointed to by <code>l</code> (the
first argument containing the digits used for counting followed by a
<code>\r</code>) is printed, and <code>_</code> is started at the least
significant digit in the string. In the test portion, <code>_</code> is
ensured not to be past the beginning of the string (the most significant
digit), and the digit pointed to by <code>_</code> is incremented and
checked to be sure that it <em>is</em> greater than <code>9</code>
(written here as <code>(S+*O+S)*S</code>). If the test fails, either the
string has been incremented or each digit in the string has been reset
to <code>0</code>. If the test succeeded, the iteration statement
assigns <code>0</code> (written here as <code>(S+*O)*S</code> (which has
the added bonus of having the code be a cry for help)) to
<code>*_</code> and decrements <code>_</code> to point to the next more
significant digit to be incremented; it is done only when a carry
situation results (<code>*_</code> has been incremented past
<code>9</code>).</p>
<p>The inspiration for this program came from actual code which dealt
with scanning for a unique temporary filename by appending a
successively larger number to the end of a string.</p>
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
License:</h2>
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
Reserved. You are free to share and adapt this file under the terms of
this license:</p>
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
<p>For more information, see:
https://creativecommons.org/licenses/by-sa/4.0/</p>
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<h1 id="inventory-for-1993plummer"><a name="inventory"></a>Inventory for
1993/plummer</h1>
<h2 id="primary-files">Primary files</h2>
<ul>
<li><a href="index.html">index.html</a> - winner home page</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/plummer/plummer.c">plummer.c</a>
- winning source</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/plummer/Makefile">Makefile</a>
- winner Makefile</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/plummer/plummer.alt.c">plummer.alt.c</a>
- alternative source</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/plummer/plummer.orig.c">plummer.orig.c</a>
- original source</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/plummer/try.alt.sh">try.alt.sh</a>
- how to run alternative code</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/plummer/try.sh">try.sh</a>
- how to run</li>
<li><a href="1993_plummer.tar.bz2">1993_plummer.tar.bz2</a> - download
winning source</li>
</ul>
<h2 id="secondary-files">Secondary files</h2>
<ul>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/plummer/.gitignore">.gitignore</a>
- list of files that should not be committed under git</li>
<li><a href=".path">.path</a> - directory path from top directory</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/plummer/.winner.json">.winner.json</a>
- description of winner in JSON</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/plummer/README.md">README.md</a>
- markdown source for index.html</li>
</ul>
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</div>
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<div class="footer">
<hr>
<h2>Coda</h2>
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F1993%2Fplummer%2Findex.html">Nu HTML check this web page</a></p>
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
</div>
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</body>
</html>
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
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@@ -6,27 +8,354 @@
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<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
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<html lang="en">
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<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>1993 rince</title>
<meta name="description" content="IOCCC year: 1993 IOCCC winner: rince winner index page">
<meta name="keywords" content="IOCCC,1993,rince,winner index page">
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
<title>1993/rince</title>
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<h1>1993 rince</h1>
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<h1>The International Obfuscated C Code Contest</h1>
<h2>1993/rince</h2>
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<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
href="/temp-test-ioccc/winners.html#James_Bonfield">James
Bonfield</a><br> Location: <a
href="/temp-test-ioccc/location.html#GB">GB</a></p>
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<h2 id="to-build">To build:</h2>
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> all</span></code></pre></div>
<p>NOTE: there are two alternate versions of this program, both allowing
one to slow down the game and the second one with movements more
familiar to vi users. See the <a href="#alternate-code">Alternate
code</a> section below.</p>
<h3 id="bugs-and-misfeatures">Bugs and (Mis)features:</h3>
<p>The current status of this entry is:</p>
<pre><code>STATUS: INABIAF - please **DO NOT** fix</code></pre>
<p>For more detailed information see <a href="/bugs.md#1993-rince">1993
rince in bugs.md</a>.</p>
<h2 id="to-use">To use:</h2>
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./rince</span> <span class="pp">[</span><span class="ss">cabbage</span><span class="pp">]</span></span></code></pre></div>
<p>where:</p>
<p><code>[cabbage]</code> is a CABBAGE description file (default:
<code>rince.c</code>)</p>
<h2 id="alternate-code">Alternate code:</h2>
<p>Some people may want to slow down the game by increasing the value 17
in the lines:</p>
<div class="sourceCode" id="cb4"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="kw">struct</span> timeval v<span class="op">=</span> <span class="op">{</span><span class="dv">0</span><span class="op">,</span><span class="dv">1</span><span class="op">&lt;&lt;</span><span class="dv">17</span><span class="op">}</span> <span class="op">;</span></span></code></pre></div>
<p>and</p>
<div class="sourceCode" id="cb5"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a>refresh<span class="op">(),</span>c<span class="op">=</span>select<span class="op">(</span>k<span class="op">,&amp;</span>y<span class="op">,</span><span class="dv">0</span><span class="op">,</span><span class="dv">0</span><span class="op">,(</span>v<span class="op">.</span>tv_usec<span class="op">=</span><span class="dv">1</span><span class="op">&lt;&lt;</span><span class="dv">17</span><span class="op">,&amp;</span>v<span class="op">))?</span>getch<span class="op">():</span><span class="dv">0</span><span class="op">;</span></span></code></pre></div>
<p>to another value like 18 or 19 which you can do with the alternate
code.</p>
<p>In the case of <a href="rince.alt2.c">rince.alt2.c</a> the movement
keys for the default game are slightly different and will feel more
familiar to vi users: <code>h</code> for left, <code>l</code> for right
(that was not changed) and <code>k</code> for fire (that was also not
changed).</p>
<h3 id="alternate-build">Alternate build:</h3>
<div class="sourceCode" id="cb6"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> SLEEP=18 clobber alt</span></code></pre></div>
<p>Replace 18 with whatever number you wish.</p>
<h3 id="alternate-use">Alternate use:</h3>
<p>Use <code>rince.alt</code> or <code>rince.alt2</code> as you would
<code>rince</code> above.</p>
<h2 id="judges-remarks">Judges’ remarks:</h2>
<p>The author has provided several CABBAGE files for your amusement:</p>
<ul>
<li><p><a href="rince.data1">rince.data1</a> plays
[Breakout](https://en.wikipedia.org/wiki/Breakout_(video_game). Keys are
<code>,</code> for left, <code>/</code> for right, and <code>.</code>
for ‘fire the ball’.</p></li>
<li><p><a href="rince.data2">rince.data2</a> plays the old <a
href="/1991/rince/rince.c">Rince</a> (<a
href="/1991/rince/README.md">README.md</a> game from IOCCC
1991.</p></li>
<li><p><a href="rince.data3">rince.data3</a> Sokoban screen 11. You are
the <code>o</code> character. You must push the money <code>m</code>
into the dotted region of the screen. The game is considered finished
when all the <code>m</code>s are then <code>M</code>s.</p></li>
<li><p><a href="rince.data4">rince.data4</a> Sokoban screen 13. Same
rules as above.</p></li>
</ul>
<p>For a brief design description, see <a
href="design.md">design.md</a>.</p>
<h3 id="warning-for-sunos-4.1.x">WARNING for SunOS 4.1.x:</h3>
<p>If you are running SunOS 4.1.x (assuming you can find an ANSI
compiler in the first place), this program may be used to log out very
quickly. Unfortunately, you can’t do anything else with it.</p>
<h3 id="additional-notes">Additional notes</h3>
<p>Some people report that <code>rince</code> dumps core on their
system.</p>
<p>On some systems that use gcc, the <code>curses.h</code> used by gcc
(typically <code>/usr/local/include/curses.h</code> if not
<code>/usr/include/curses.h</code>) is not compatible with the curses
library (typically <code>/lib/libcurses.a</code> for static libraries)
used. It has been suggested that the following gcc command may help:</p>
<div class="sourceCode" id="cb7"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a><span class="fu">gcc</span> <span class="at">-fno-builtin</span> <span class="at">-I</span>/usr/include <span class="at">-o</span> rince rince.c <span class="at">-lcurses</span> <span class="at">-ltermcap</span></span></code></pre></div>
<h2 id="authors-remarks">Author’s remarks:</h2>
<p>This is a Cellular Automata Based, Beautifully Abysmal Game
Environment (or CABBAGE for short). To execute the program simply type
<code>./rince gamefile</code>, where <code>gamefile</code> is a game
description file. A few are supplied for your enjoyment. Alternatively,
with no arguments it will default to using it’s own datafile (the source
code in fact). This happens to be a game of <a
href="https://en.wikipedia.org/wiki/Space_Invaders">Space Invaders</a>.
To prevent people from firing too often a very simple method is
employed; you must move after firing to be able to fire again.</p>
<h3 id="keys">Keys</h3>
<ul>
<li><code>j</code> - Left</li>
<li><code>l</code> - Right</li>
<li><code>k</code> - Fire</li>
</ul>
<p>This is a new breed of generic games. For instance:</p>
<p>Game play : Whatever you define Keys : Whatever you define Score : If
you can figure out how to update it! Levels : Ahh well… it’s not
<em>totally</em> generic.</p>
<p>The proper definition for usage would be:
<code>./rince [data_filename]</code></p>
<h3 id="portability">Portability</h3>
<p>I have compiled in on the following systems:</p>
<pre><code>System OS Compiler (and flags)
DECstation 5000/240 Ultrix 4.2A c89 -std
SPARCstation 1+ SunOS 4.1 gcc -ansi -pedantic
SPARCstation 10/31 Solaris 2.1 gcc -ansi -pedantic (*)
DECAlpha 3000/500 OSF/1 V1.2 c89 -std
SGI Indigo (R4000) IRIX 4.0.5F cc -ansi
Alliant FX2800 Conentrix 3.0.0 fxc</code></pre>
<p>* I never said it worked! The guidelines state that you dislike
programs that won’t <em>compile</em> under both BSD or SysV
<code>Unix</code>. This compiles, and indeed runs on all the others
(both BSD and SysV) correctly.</p>
<p>Alas, on Solaris it compiles, but mysteriously stops displaying
output after a while until you quit with control-c, when it all catches
up again. I think the problem may lie in either <code>select(2)</code>,
or curses, (or perhaps conflict of the two).</p>
<p>The use of <code>select(2)</code> no doubt makes it less portable to
STRICT SysV machines. However I have tested this on several so-called
SysV machines, and all of them support <code>select(2)</code>. In fact,
the <code>select(2)</code> they support appears to be more portable
between them than their <code>poll()</code> call.</p>
<h3 id="obfuscation">Obfuscation</h3>
<p>I have tried to use as many different obfuscation techniques,
including some of which (such as <code>sizeof</code> confusion) I have
not seen in any winners (hmmm - perhaps there’s a reason for that…) so
far. Also, very poor structure (yes, I use <code>goto</code>’s) has led
to apparently having an <code>fgets()</code> as the last line of main.
Note that I have still tried to aim at least some efficiency (provided
it makes things slightly more obfuscated of course). One such thing is
the way I dynamically allocate a 2-dimensional array using only ONE
<code>malloc()</code>. Hence this program could be used as a tutorial
for all those people who consistently ask this question in the C
newsgroups.</p>
<p>Also, the program does require a volatile type (especially when
optimising) to perform correctly. This is the first time I have ever
truly needed this when not accessing memory external to this process
:-)</p>
<p>Of course, all the usual obfuscation lurks within, such as combining
multiple for loops into single ones; warped and twisted logic; plus a
plethora of other minor oddities. It’s up to you to discover some of
them of course… Sometimes I have sacrificed length for obfuscation. It
is all too easy to change the arguments in <code>main()</code> to one
character identifiers, but in my opinion they add to obfuscation in this
case by being longer.</p>
<p><code>lint</code> complains about lots of things. Firstly the use of
curses immediately makes <code>lint</code> complain. The Alpha’s
<code>lint</code> gave me some positive encouragement!
<code>precedence confusion possible: parenthesize!</code> :-) :-)
<code>main()</code> does not return correctly, because, basically, it
doesn’t return.</p>
<h3 id="bugs">Bugs</h3>
<p>Very little error checking is performed. I do check for not being
able to open the requested filename and return 1 upon failure. However,
badly formatted data files will cause major problems. No other checking
(such as insufficient memory) is performed.</p>
<p>There is no ‘end of game’ checking method. Hence games like Sokoban
rely on the user to decide when they have had enough. Also, there is no
quit mechanism other than control-c.</p>
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
License:</h2>
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
Reserved. You are free to share and adapt this file under the terms of
this license:</p>
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
<p>For more information, see:
https://creativecommons.org/licenses/by-sa/4.0/</p>
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<h1 id="inventory-for-1993rince"><a name="inventory"></a>Inventory for
1993/rince</h1>
<h2 id="primary-files">Primary files</h2>
<ul>
<li><a href="index.html">index.html</a> - winner home page</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/rince/rince.c">rince.c</a>
- winning source</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/rince/Makefile">Makefile</a>
- winner Makefile</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/rince/rince.alt.c">rince.alt.c</a>
- alternative source</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/rince/rince.alt2.c">rince.alt2.c</a>
- alternate alternative source</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/rince/rince.orig.c">rince.orig.c</a>
- original source</li>
<li><a href="design.html">design.html</a> - implementation notes</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/rince/rince.data1">rince.data1</a>
- CABBAGE data file</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/rince/rince.data2">rince.data2</a>
- CABBAGE data file</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/rince/rince.data3">rince.data3</a>
- CABBAGE data file</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/rince/rince.data4">rince.data4</a>
- CABBAGE data file</li>
<li><a href="1993_rince.tar.bz2">1993_rince.tar.bz2</a> - download
winning source</li>
</ul>
<h2 id="secondary-files">Secondary files</h2>
<ul>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/rince/.gitignore">.gitignore</a>
- list of files that should not be committed under git</li>
<li><a href=".path">.path</a> - directory path from top directory</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/rince/.winner.json">.winner.json</a>
- description of winner in JSON</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/rince/README.md">README.md</a>
- markdown source for index.html</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/rince/design.md">design.md</a>
- markdown source for design.html</li>
</ul>
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<h2>Coda</h2>
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<h1>The International Obfuscated C Code Contest</h1>
<h2>1993/schnitzi</h2>
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<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
</div>
<hr>
<div class="sidenav">
<a href="#top">Jump to top</a>
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<a name="content"></a>
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<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
href="/temp-test-ioccc/winners.html#Mark_Schnitzius">Mark
Schnitzius</a><br> Location: <a
href="/temp-test-ioccc/location.html#null">unknown</a></p>
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<h2 id="to-build">To build:</h2>
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> all</span></code></pre></div>
<h3 id="bugs-and-misfeatures">Bugs and (Mis)features:</h3>
<p>The current status of this entry is:</p>
<pre><code>STATUS: INABIAF - please **DO NOT** fix</code></pre>
<p>For more detailed information see <a
href="/bugs.md#1993-schnitzi">1993 schnitzi in bugs.md</a>.</p>
<h2 id="to-use">To use:</h2>
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./schnitzi</span> file</span></code></pre></div>
<p>where</p>
<p><code>file</code> is a file containing some text.</p>
<p>Certain input will cause the program to fail as described in the
bugs.md file.</p>
<h2 id="try">Try:</h2>
<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./schnitzi</span> schnitzi.info</span>
<span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a><span class="co"># ask some questions suggested by the author, noted below</span></span></code></pre></div>
<p>We also suggest you ask the program the following questions:</p>
<div class="sourceCode" id="cb5"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a><span class="ex">Who</span> is Mark Schnitzus<span class="pp">?</span></span>
<span id="cb5-2"><a href="#cb5-2" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb5-3"><a href="#cb5-3" aria-hidden="true" tabindex="-1"></a><span class="ex">Who</span> was Jack the Ripper <span class="pp">?</span></span></code></pre></div>
<p>Notice how it still manages to answer the first question despite
there being an intentional spelling error there.</p>
<p>Try feeding the program source to the program and ask both:</p>
<div class="sourceCode" id="cb6"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="ex">What</span> is cat <span class="pp">?</span></span>
<span id="cb6-2"><a href="#cb6-2" aria-hidden="true" tabindex="-1"></a><span class="ex">What</span> is cat<span class="pp">?</span></span></code></pre></div>
<p>What happens if you ask it other questions with and without a space
before the <code>?</code>?</p>
<h2 id="judges-remarks">Judges’ remarks:</h2>
<p>After this program prints the contents of ‘file’, ask it some
questions related to the text.</p>
<p>The author suggests the following questions when using <a
href="schnitzi.info">schnitzi.info</a>:</p>
<ul>
<li>Who is Mark Schnitzius?</li>
<li>What exactly does this program do?</li>
<li>What language is it written in?</li>
<li>Has the Loch Ness monster really been captured?</li>
<li>Who was Hitler?</li>
<li>Were the NASA Moon landings faked?</li>
<li>Is it true that Elvis is alive?</li>
<li>Do colorless green ideas sleep furiously?</li>
</ul>
<p>We suggest you try using the body (minus the header and signature
line) of a Usenet article. You might want to try something from
alt.flame. :-)</p>
<p>NOTE: If you have certain <code>'</code> in the question this entry
might fail.</p>
<h2 id="authors-remarks">Author’s remarks:</h2>
<p>I wanted to write a program that would read in a text file in natural
language (such as English) and answer questions about that text file. I
thought this might be a complicated task, and I was right – it took me
over 800 bytes. Of course, it doesn’t always work, but that’s AI for
you.</p>
<p>This program accepts the name of a text file as the first parameter.
For example, to run it on the supplied data file called ‘schnitzi.info’
you would type <code>./schnitzi schnitzi.info</code>. It echoes the
file, then gives you a prompt where you may type in questions about that
text. The more words you use which are actually present in the text
file, the better results you get. You’ll need to hit <code>ctrl-c</code>
to break out of the program. Just hitting <code>return</code> at the
prompt will reprint the paragraph.</p>
<p>If you’re curious as to how it works, I guess you could feed in the
source as the input file and ask “How does this work?” at the prompt,
but I’m not guaranteeing any results…</p>
<h3 id="compilation-notes">Compilation notes</h3>
<ul>
<li><p>The use of <code>strcasecmp(3)</code> may be non-standard.
<code>strcmp(3)</code> can be substituted for it, with a slight
performance penalty.</p></li>
<li><p>This program depends on the first command-line parameter,
typically called <code>argv[0]</code>, to hold the name of the
executable. It is my understanding that this property of
<code>argv[0]</code> is not guaranteed on some systems.</p></li>
</ul>
<h3 id="obfuscation">Obfuscation</h3>
<ul>
<li><p>It uses a hidden string to test for punctuation.</p></li>
<li><p>The layout, variable names, and expression format have been
chosen in such a way as to cause visual confusion.</p></li>
<li><p>It uses uses external <code>system(3)</code> calls to echo the
text file and break up the question into individual words with a
recursive call.</p></li>
<li><p>It uses a clever hack to simulate artificial
intelligence.</p></li>
</ul>
<p>The text for the info file, by the way, consists largely of headlines
from the Weekly World News.</p>
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
License:</h2>
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
Reserved. You are free to share and adapt this file under the terms of
this license:</p>
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
<p>For more information, see:
https://creativecommons.org/licenses/by-sa/4.0/</p>
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<h1 id="inventory-for-1993schnitzi"><a name="inventory"></a>Inventory
for 1993/schnitzi</h1>
<h2 id="primary-files">Primary files</h2>
<ul>
<li><a href="index.html">index.html</a> - winner home page</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/schnitzi/schnitzi.c">schnitzi.c</a>
- winning source</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/schnitzi/Makefile">Makefile</a>
- winner Makefile</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/schnitzi/schnitzi.orig.c">schnitzi.orig.c</a>
- original source</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/schnitzi/schnitzi.info">schnitzi.info</a>
- some interesting statements</li>
<li><a href="1993_schnitzi.tar.bz2">1993_schnitzi.tar.bz2</a> - download
winning source</li>
</ul>
<h2 id="secondary-files">Secondary files</h2>
<ul>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/schnitzi/.gitignore">.gitignore</a>
- list of files that should not be committed under git</li>
<li><a href=".path">.path</a> - directory path from top directory</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/schnitzi/.winner.json">.winner.json</a>
- description of winner in JSON</li>
<li><a
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/schnitzi/README.md">README.md</a>
- markdown source for index.html</li>
</ul>
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<div class="footer">
<hr>
<h2>Coda</h2>
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F1993%2Fschnitzi%2Findex.html">Nu HTML check this web page</a></p>
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
</div>
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</body>
</html>
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+332 -13
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<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
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<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>1993 vanb</title>
<meta name="description" content="IOCCC year: 1993 IOCCC winner: vanb winner index page">
<meta name="keywords" content="IOCCC,1993,vanb,winner index page">
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
<title>1993/vanb</title>
<meta name="description" content="1993 IOCCC winner vanb">
<meta name="keywords" content="IOCCC, 1993, IOCCC 1993, IOCCC winner, vanb">
</head>
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<body>
<h1>1993 vanb</h1>
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<p>XXX - fake content until readme2index is working - XXX</p>
<div class="header">
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
<h1>The International Obfuscated C Code Contest</h1>
<h2>1993/vanb</h2>
</div>
<hr style="width:50%;text-align:left;margin-left:0">
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<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F1993%2Fvanb%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/1993/vanb/index.html</a></p>
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<div class="topnav">
<a class="Left" href="../schnitzi/index.html">&larr; schnitzi</a>
<a class="Left" href="../index.html">&uarr; 1993 &uarr;</a>
<a class="Left Disabled" href="#">last entry</a>
<a class="Right" href="#inventory">Inventory</a>
</div>
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</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
<a href="/temp-test-ioccc/winners.html">People who have won</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
<a href="/temp-test-ioccc/faq.html">FAQ</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/bugs.html">Bugs &amp; (mis)features</a>
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
</div>
<hr>
<div class="sidenav">
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
</div>
<hr>
<div class="sidenav">
<a href="#top">Jump to top</a>
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<a name="content"></a>
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<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
href="/temp-test-ioccc/winners.html#David_Van_Brackle">David Van
Brackle</a><br> Location: <a
href="/temp-test-ioccc/location.html#null">unknown</a></p>
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<h2 id="to-build">To build:</h2>
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> all</span></code></pre></div>
<h3 id="bugs-and-misfeatures">Bugs and (Mis)features:</h3>
<p>The current status of this entry is:</p>
<pre><code>STATUS: INABIAF - please **DO NOT** fix</code></pre>
<p>For more detailed information see <a href="/bugs.md#1993-vanb">1993
vanb in bugs.md</a>.</p>
<h2 id="to-use">To use:</h2>
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./vanb</span> <span class="st">&#39;exp&#39;</span></span></code></pre></div>
<p>where <code>exp</code> is an octal expression. See below for how it
can also have hexadecimal and decimal numbers.</p>
<h2 id="try">Try:</h2>
<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span></span></code></pre></div>
<p>What happens if you use something other than valid digits?</p>
<h2 id="judges-remarks">Judges’ remarks:</h2>
<p>The octal expression may contain:</p>
<pre><code>unary operators: +, -
binary operators +, -, *, /, %
hex numbers: x or X followed by hex digits
decimal numbers: d or D followed by decimal digits
octal numbers: octal digits
grouping: ()</code></pre>
<p>No spaces are allowed in the expression. To avoid shell expansion,
one should surround the expression in single quotes.</p>
<p>It is a good thing that this program consists of only one expression,
otherwise it might become hard to understand. :-)</p>
<h2 id="authors-remarks">Author’s remarks:</h2>
<p>The program does no error checking - erroneous expressions will
produce spurious results. Note that unary <code>-</code> is an operator.
Thus, decimal <code>-46</code> would be entered as <code>-d46</code> and
not <code>d-46</code>.</p>
<h3 id="what-makes-this-program-special">What Makes This Program
Special:</h3>
<ol start="0" type="1">
<li><p>Of course, the fact that the program takes input and produces
output in octal, rather than a more useful system like decimal, makes it
“special”.</p></li>
<li><p>The entire program consists of a single expression, returned from
<code>main()</code>.</p></li>
<li><p>There are no global or local variables other than the parameters
to <code>main()</code>.</p></li>
<li><p>All of the constants in the program are expressed in octal -
including the <code>printf(3)</code> string.</p></li>
<li><p>The variables are given names which cause visual confusion with
the octal constants.</p></li>
<li><p>The program is formatted like a Roman numeral 8. The significance
of 8 is obvious. I chose Roman numerals because it is a numbering system
even more arcane than octal. It’s not very ‘deceptive’, but it’s
difficult to deceptively format a program which has no explicit control
structures (other than <code>?:</code>s).</p></li>
<li><p>Many simple tasks are done many times. I tried to do these
differently each time, to make the program harder to
understand.</p></li>
</ol>
<h3 id="how-it-works">How It Works:</h3>
<p>It’s a recursive descent parser, calling <code>main()</code> for all
of its recursion. <code>O2</code> is a state variable, telling
<code>main()</code> what grammar non-terminal to parse.
<code>**O7</code> is the next character. <code>O3</code> is an
intermediate result. Whenever you see a construct like:</p>
<pre><code>!(expression with O2)?</code></pre>
<p>it’s decrementing and testing <code>O2</code> to see what state it’s
in. Comparisons involving <code>**O7</code> and octal constants are
looking for certain characters.</p>
<p>Here’s the grammar (<code>'e'</code> denotes the empty string) :</p>
<pre><code>&lt;E&gt; ::= &lt;T&gt;&lt;E&#39;&gt;
&lt;E&#39;&gt; ::= +&lt;T&gt;&lt;E&#39;&gt; | -&lt;T&gt;&lt;E&#39;&gt; | e
&lt;T&gt; ::= &lt;F&gt;&lt;T&#39;&gt;
&lt;T&#39;&gt; ::= *&lt;F&gt;&lt;T&#39;&gt; | /&lt;F&gt;&lt;T&#39;&gt; | %&lt;F&gt;&lt;T&#39;&gt; | e
&lt;F&gt; ::= +&lt;F&gt; | -&lt;F&gt; | (&lt;E&gt;&lt;C&gt; | d&lt;D&gt; | D&lt;D&gt; | x&lt;X&gt; | X&lt;X&gt; | &lt;O&gt;
&lt;C&gt; ::= )
&lt;D&gt; ::= [0-9]&lt;D&gt; | e
&lt;X&gt; ::= [0-9]&lt;X&gt; | [A-F]&lt;X&gt; | [a-f]&lt;X&gt; | e
&lt;O&gt; ::= [0-7]&lt;O&gt; | e</code></pre>
<p>Here’s how the grammar nonterminals map to octal state numbers:</p>
<pre><code>&lt;E&gt; is 012
&lt;E&#39;&gt; is 011
&lt;T&gt; is 010
&lt;T&#39;&gt; is 07
&lt;F&gt; is 06
&lt;C&gt; is 013
&lt;D&gt; is 04
&lt;X&gt; is 05
&lt;O&gt; is 03</code></pre>
<p>Here’s a version of the program before it got formatted into the
VIII, augmented with comments showing where each state begins.
<code>N1</code> and <code>N2</code> are notes:</p>
<div class="sourceCode" id="cb9"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb9-1"><a href="#cb9-1" aria-hidden="true" tabindex="-1"></a><span class="pp">#define O5 main</span></span>
<span id="cb9-2"><a href="#cb9-2" aria-hidden="true" tabindex="-1"></a>O5<span class="op">(</span>O2<span class="op">,</span>O7<span class="op">,</span>O3<span class="op">)</span><span class="dt">char</span><span class="op">**</span>O7<span class="op">;</span></span>
<span id="cb9-3"><a href="#cb9-3" aria-hidden="true" tabindex="-1"></a><span class="op">{</span></span>
<span id="cb9-4"><a href="#cb9-4" aria-hidden="true" tabindex="-1"></a> <span class="cf">return</span></span>
<span id="cb9-5"><a href="#cb9-5" aria-hidden="true" tabindex="-1"></a><span class="co">/* N1 */</span> <span class="op">!(</span>O2<span class="op">+=~</span><span class="bn">01</span><span class="op">+</span><span class="bn">01</span><span class="op">)</span> <span class="op">?</span>\</span>
<span id="cb9-6"><a href="#cb9-6" aria-hidden="true" tabindex="-1"></a> <span class="bn">00</span><span class="op">:</span></span>
<span id="cb9-7"><a href="#cb9-7" aria-hidden="true" tabindex="-1"></a><span class="co">/* N2 */</span> <span class="op">!(</span>O2<span class="op">-=</span><span class="bn">02</span><span class="op">&gt;</span><span class="bn">01</span><span class="op">)</span> <span class="op">?</span>\</span>
<span id="cb9-8"><a href="#cb9-8" aria-hidden="true" tabindex="-1"></a> printf<span class="op">(</span><span class="st">&quot;</span><span class="sc">\045</span><span class="er">\1</span><span class="st">57</span><span class="sc">\012</span><span class="st">&quot;</span><span class="op">,</span>O5<span class="op">(</span><span class="bn">012</span><span class="op">,</span>O7<span class="op">+</span><span class="bn">01</span><span class="op">,</span><span class="bn">00</span><span class="op">)):</span></span>
<span id="cb9-9"><a href="#cb9-9" aria-hidden="true" tabindex="-1"></a><span class="co">/* O */</span> <span class="op">!(</span>O2<span class="op">-=</span><span class="bn">02</span><span class="op">&gt;&gt;</span><span class="bn">01</span><span class="op">)</span> <span class="op">?</span>\</span>
<span id="cb9-10"><a href="#cb9-10" aria-hidden="true" tabindex="-1"></a> <span class="op">(**</span>O7<span class="op">&lt;=</span><span class="bn">067</span> <span class="op">&amp;&amp;</span> <span class="op">**</span>O7<span class="op">&gt;</span><span class="bn">057</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">03</span><span class="op">,</span>O7<span class="op">,*(*</span>O7<span class="op">)++-</span><span class="bn">060</span><span class="op">+</span><span class="bn">010</span><span class="op">*</span>O3<span class="op">):</span>O3<span class="op">):</span></span>
<span id="cb9-11"><a href="#cb9-11" aria-hidden="true" tabindex="-1"></a><span class="co">/* D */</span> <span class="op">!(</span>O2<span class="op">-=-</span>O3<span class="op">-~</span>O3<span class="op">)</span> <span class="op">?</span>\</span>
<span id="cb9-12"><a href="#cb9-12" aria-hidden="true" tabindex="-1"></a> <span class="op">(</span><span class="bn">072</span><span class="op">&gt;**</span>O7 <span class="op">&amp;&amp;</span> <span class="bn">060</span><span class="op">&lt;=**</span>O7 <span class="op">?</span> O5<span class="op">(</span><span class="bn">04</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">012</span><span class="op">*</span>O3<span class="op">-</span><span class="bn">060</span><span class="op">+*(*</span>O7<span class="op">)++):</span>O3<span class="op">):</span></span>
<span id="cb9-13"><a href="#cb9-13" aria-hidden="true" tabindex="-1"></a><span class="co">/* X */</span> <span class="op">!(</span>O2<span class="op">-=!</span>O3<span class="op">+!!</span>O3<span class="op">)</span> <span class="op">?</span>\</span>
<span id="cb9-14"><a href="#cb9-14" aria-hidden="true" tabindex="-1"></a> <span class="op">(**</span>O7<span class="op">&gt;</span><span class="bn">057</span> <span class="op">&amp;&amp;</span> <span class="op">**</span>O7<span class="op">&lt;=</span><span class="bn">071</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">05</span><span class="op">,</span>O7<span class="op">,*(*</span>O7<span class="op">)+++</span>O3<span class="op">*</span><span class="bn">020</span><span class="op">-</span><span class="bn">060</span><span class="op">):</span></span>
<span id="cb9-15"><a href="#cb9-15" aria-hidden="true" tabindex="-1"></a> <span class="op">**</span>O7<span class="op">&lt;=</span><span class="bn">0106</span> <span class="op">&amp;&amp;</span> <span class="bn">0101</span><span class="op">&lt;=**</span>O7 <span class="op">?</span> O5<span class="op">(</span><span class="bn">05</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">020</span><span class="op">*</span>O3<span class="op">+*(*</span>O7<span class="op">)++-</span><span class="bn">067</span><span class="op">):</span></span>
<span id="cb9-16"><a href="#cb9-16" aria-hidden="true" tabindex="-1"></a> <span class="bn">0140</span><span class="op">&lt;**</span>O7 <span class="op">&amp;&amp;</span> <span class="op">**</span>O7<span class="op">&lt;</span><span class="bn">0147</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">05</span><span class="op">,</span>O7<span class="op">,-</span><span class="bn">0127</span><span class="op">+*(*</span>O7<span class="op">)+++</span><span class="bn">020</span><span class="op">*</span>O3<span class="op">):</span>O3<span class="op">):</span></span>
<span id="cb9-17"><a href="#cb9-17" aria-hidden="true" tabindex="-1"></a><span class="co">/* F */</span> <span class="op">!(</span>O2<span class="op">-=</span><span class="bn">02</span><span class="op">-</span><span class="bn">01</span><span class="op">)</span> <span class="op">?</span>\</span>
<span id="cb9-18"><a href="#cb9-18" aria-hidden="true" tabindex="-1"></a> <span class="op">(**</span>O7<span class="op">==</span><span class="bn">050</span> <span class="op">?</span> <span class="bn">050</span><span class="op">**++*</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">013</span><span class="op">,</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">012</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">)):</span></span>
<span id="cb9-19"><a href="#cb9-19" aria-hidden="true" tabindex="-1"></a> <span class="op">**</span>O7<span class="op">&lt;</span><span class="bn">056</span> <span class="op">&amp;&amp;</span> <span class="bn">054</span><span class="op">&lt;**</span>O7 <span class="op">?</span> <span class="bn">055</span><span class="op">**++*</span>O7<span class="op">,-</span>O5<span class="op">(</span><span class="bn">06</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">):</span></span>
<span id="cb9-20"><a href="#cb9-20" aria-hidden="true" tabindex="-1"></a> <span class="bn">054</span><span class="op">&gt;**</span>O7 <span class="op">&amp;&amp;</span> <span class="bn">052</span><span class="op">&lt;**</span>O7 <span class="op">?</span> <span class="bn">050</span><span class="op">**(*</span>O7<span class="op">)++,</span>O5<span class="op">(</span><span class="bn">06</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">):</span></span>
<span id="cb9-21"><a href="#cb9-21" aria-hidden="true" tabindex="-1"></a> <span class="op">!(**</span>O7<span class="op">^</span><span class="bn">0170</span><span class="op">)||!(</span><span class="bn">0130</span><span class="op">^**</span>O7<span class="op">)</span> <span class="op">?</span> <span class="op">*++*</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">05</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">):</span></span>
<span id="cb9-22"><a href="#cb9-22" aria-hidden="true" tabindex="-1"></a> <span class="op">**</span>O7<span class="op">==</span><span class="bn">0144</span><span class="op">||**</span>O7<span class="op">==</span><span class="bn">0104</span> <span class="op">?</span> <span class="op">++*</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">04</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">):</span>O5<span class="op">(</span><span class="bn">03</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">)):</span></span>
<span id="cb9-23"><a href="#cb9-23" aria-hidden="true" tabindex="-1"></a><span class="co">/* T&#39; */</span> <span class="op">!--</span>O2 <span class="op">?</span>\</span>
<span id="cb9-24"><a href="#cb9-24" aria-hidden="true" tabindex="-1"></a> <span class="op">(**</span>O7<span class="op">==</span><span class="bn">052</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">07</span><span class="op">,</span>O7<span class="op">,</span>O3<span class="op">*(*++*</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">06</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">))):</span></span>
<span id="cb9-25"><a href="#cb9-25" aria-hidden="true" tabindex="-1"></a> <span class="op">!(</span><span class="bn">045</span><span class="op">-**</span>O7<span class="op">)</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">07</span><span class="op">,</span>O7<span class="op">,</span>O3<span class="op">%(</span><span class="bn">03</span><span class="op">+(*</span>O7<span class="op">)++,</span>O5<span class="op">(</span><span class="bn">06</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">))):</span></span>
<span id="cb9-26"><a href="#cb9-26" aria-hidden="true" tabindex="-1"></a> <span class="op">!(**</span>O7<span class="op">^</span><span class="bn">057</span><span class="op">)</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">07</span><span class="op">,</span>O7<span class="op">,</span>O3<span class="op">/(</span><span class="bn">03</span><span class="op">-*++*</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">06</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">))):</span>O3<span class="op">):</span></span>
<span id="cb9-27"><a href="#cb9-27" aria-hidden="true" tabindex="-1"></a><span class="co">/* T */</span> <span class="op">!(</span>O2<span class="op">+=</span><span class="bn">01</span><span class="op">-</span><span class="bn">02</span><span class="op">)</span> <span class="op">?</span>\</span>
<span id="cb9-28"><a href="#cb9-28" aria-hidden="true" tabindex="-1"></a> O5<span class="op">(</span><span class="bn">07</span><span class="op">,</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">06</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">)):</span></span>
<span id="cb9-29"><a href="#cb9-29" aria-hidden="true" tabindex="-1"></a><span class="co">/* E&#39; */</span> <span class="op">!(</span>O2<span class="op">+=-</span><span class="bn">02</span><span class="op">/</span><span class="bn">02</span><span class="op">)</span> <span class="op">?</span>\</span>
<span id="cb9-30"><a href="#cb9-30" aria-hidden="true" tabindex="-1"></a> <span class="op">(!(**</span>O7<span class="op">-</span><span class="bn">053</span><span class="op">)?</span>O5<span class="op">(</span><span class="bn">011</span><span class="op">,</span>O7<span class="op">,</span>O3<span class="op">+(++*</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">010</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">))):</span></span>
<span id="cb9-31"><a href="#cb9-31" aria-hidden="true" tabindex="-1"></a> <span class="op">!(</span><span class="bn">055</span><span class="op">^**</span>O7<span class="op">)</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">011</span><span class="op">,</span>O7<span class="op">,</span>O3<span class="op">-(</span><span class="bn">03</span><span class="op">+*(*</span>O7<span class="op">)++,</span>O5<span class="op">(</span><span class="bn">010</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">))):</span>O3<span class="op">):</span></span>
<span id="cb9-32"><a href="#cb9-32" aria-hidden="true" tabindex="-1"></a><span class="co">/* E */</span> <span class="op">!(</span>O2<span class="op">-=</span><span class="bn">0563</span><span class="op">&amp;</span><span class="bn">0215</span><span class="op">)</span> <span class="op">?</span>\</span>
<span id="cb9-33"><a href="#cb9-33" aria-hidden="true" tabindex="-1"></a> O5<span class="op">(</span><span class="bn">011</span><span class="op">,</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">010</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">)):</span></span>
<span id="cb9-34"><a href="#cb9-34" aria-hidden="true" tabindex="-1"></a><span class="co">/* C */</span> <span class="op">(++*</span>O7<span class="op">,</span>O3<span class="op">);</span></span>
<span id="cb9-35"><a href="#cb9-35" aria-hidden="true" tabindex="-1"></a><span class="op">}</span></span></code></pre></div>
<p>Note <code>N1</code>: It should never enter this state, unless the
user invokes the program with no parameters, in which case it just
returns 0.</p>
<p>Note <code>N2</code>: Since the program is properly invoked with 1
parameter, this is the first state it will go into. This state just
invokes printf, and sends the parser to state <code>012</code> (which is
<code>&lt;E&gt;</code>).</p>
<p>The <code>E</code> and <code>T</code> states work like this:</p>
<div class="sourceCode" id="cb10"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb10-1"><a href="#cb10-1" aria-hidden="true" tabindex="-1"></a><span class="dt">int</span> e<span class="op">(){</span> <span class="cf">return</span> eprime<span class="op">(</span> t<span class="op">()</span> <span class="op">);</span> <span class="op">}</span></span></code></pre></div>
<p>The <code>E'</code> and <code>T'</code> states work like this:</p>
<div class="sourceCode" id="cb11"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a><span class="dt">int</span> eprime<span class="op">(</span> <span class="dt">int</span> intermediate <span class="op">)</span></span>
<span id="cb11-2"><a href="#cb11-2" aria-hidden="true" tabindex="-1"></a><span class="op">{</span></span>
<span id="cb11-3"><a href="#cb11-3" aria-hidden="true" tabindex="-1"></a> <span class="cf">if</span><span class="op">(</span> ch <span class="op">==</span> <span class="ch">&#39;+&#39;</span> <span class="op">)</span></span>
<span id="cb11-4"><a href="#cb11-4" aria-hidden="true" tabindex="-1"></a> <span class="op">{</span></span>
<span id="cb11-5"><a href="#cb11-5" aria-hidden="true" tabindex="-1"></a> ch <span class="op">=</span> nextchar<span class="op">();</span></span>
<span id="cb11-6"><a href="#cb11-6" aria-hidden="true" tabindex="-1"></a> <span class="cf">return</span> eprime<span class="op">(</span> intermediate <span class="op">+</span> t<span class="op">()</span> <span class="op">);</span></span>
<span id="cb11-7"><a href="#cb11-7" aria-hidden="true" tabindex="-1"></a> <span class="op">}</span></span>
<span id="cb11-8"><a href="#cb11-8" aria-hidden="true" tabindex="-1"></a> <span class="cf">else</span> <span class="cf">return</span> intermediate<span class="op">;</span></span>
<span id="cb11-9"><a href="#cb11-9" aria-hidden="true" tabindex="-1"></a><span class="op">}</span></span></code></pre></div>
<p>The <code>D</code>, <code>X</code> and <code>O</code> states work
like this (they assume that they’re initially called with
<code>0</code>):</p>
<div class="sourceCode" id="cb12"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb12-1"><a href="#cb12-1" aria-hidden="true" tabindex="-1"></a><span class="dt">int</span> octal<span class="op">(</span> <span class="dt">int</span> intermediate <span class="op">)</span></span>
<span id="cb12-2"><a href="#cb12-2" aria-hidden="true" tabindex="-1"></a><span class="op">{</span></span>
<span id="cb12-3"><a href="#cb12-3" aria-hidden="true" tabindex="-1"></a> <span class="cf">if</span><span class="op">(</span> ch<span class="op">&gt;=</span><span class="ch">&#39;0&#39;</span> <span class="op">&amp;&amp;</span> ch<span class="op">&lt;=</span><span class="ch">&#39;7&#39;</span> <span class="op">)</span></span>
<span id="cb12-4"><a href="#cb12-4" aria-hidden="true" tabindex="-1"></a> <span class="op">{</span></span>
<span id="cb12-5"><a href="#cb12-5" aria-hidden="true" tabindex="-1"></a> intermediate <span class="op">=</span> intermediate <span class="op">*</span> <span class="dv">8</span> <span class="op">+</span> ch <span class="op">-</span> <span class="ch">&#39;0&#39;</span><span class="op">;</span></span>
<span id="cb12-6"><a href="#cb12-6" aria-hidden="true" tabindex="-1"></a> ch <span class="op">=</span> nextchar<span class="op">();</span></span>
<span id="cb12-7"><a href="#cb12-7" aria-hidden="true" tabindex="-1"></a> <span class="cf">return</span> octal<span class="op">(</span> intermediate <span class="op">);</span></span>
<span id="cb12-8"><a href="#cb12-8" aria-hidden="true" tabindex="-1"></a> <span class="op">}</span></span>
<span id="cb12-9"><a href="#cb12-9" aria-hidden="true" tabindex="-1"></a> <span class="cf">else</span> <span class="cf">return</span> intermediate<span class="op">;</span></span>
<span id="cb12-10"><a href="#cb12-10" aria-hidden="true" tabindex="-1"></a><span class="op">}</span></span></code></pre></div>
<p><code>F</code> and <code>C</code> work similarly.</p>
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
License:</h2>
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
Reserved. You are free to share and adapt this file under the terms of
this license:</p>
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
<p>For more information, see:
https://creativecommons.org/licenses/by-sa/4.0/</p>
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
<h1 id="inventory-for-1993vanb"><a name="inventory"></a>Inventory for
1993/vanb</h1>
<h2 id="primary-files">Primary files</h2>
<ul>
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</ul>
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