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improved indentation and whitespace for markdown code blocks

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All code blocks in markdown have been intended by at least 4 spaces.

We add `--tab-stop=8` to all `pandoc(1)` executions in order to set
a better tab stop indentation, especially for tab intended code blocks.

Changed `bin/pandoc-wrapper.sh` VERSION from "1.5.3 2024-03-26"
to "1.6 2024-03-31".

Fixed `1991/brnstnd/sorta.README.md` so that the sorta code
is code blocks.

Removed unneeded paragraph group in copyright in `inc/footer.default.html`.

Fixed excess whitespace after list Author on entry `index.html` page.

Changed `bin/output-index-author.sh` VERSION from "1.5.2 2024-03-26"
to "1.6 2024-03-31".

Performed `make www` to perform the above and test under macOS.

TODO: Fix the problem of the initial line of code being extra intended.
TODO: Fix excess whitespace around code that is inline.
This commit is contained in:
Landon Curt Noll committed 2024-04-01 04:48:48 -07:00
1 parent b84c27ce02
commit a996f8d2b8
734 files changed
+16723 -16963
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2020/ferguson2/index.html
+109 -110
View File
@@ -132,8 +132,7 @@
<h2 id="author"><a name="author"></a>Author:</h2>
<ul>
<li>Name: <a href="../../authors.html#Cody_Boone_Ferguson">Cody Boone Ferguson</a><br>
Location: <a href="../../location.html#US">US</a> - <em>United States of America</em> (<em>United States</em>)
<br><br></li>
Location: <a href="../../location.html#US">US</a> - <em>United States of America</em> (<em>United States</em>)</li>
</ul>
<!-- END: next line ends content generated by: bin/output-index-author.sh -->
@@ -142,62 +141,62 @@ Location: <a href="../../location.html#US">US</a> - <em>United States of America
<!-- START: this line starts content for HTML phase 21 by: bin/pandoc-wrapper.sh via bin/md2html.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></span></code></pre></div>
<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></span></code></pre></div>
<p>The author provided alternate code that prints the output one character at a
time to make it a bit more like the real thing in that it isn’t dumped out all
at once. See <a href="#alternate-code">Alternate code</a> below.</p>
<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">./prog</span></span>
<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">./prog</span></span>
<span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a><span class="co"># get recode help:</span></span>
<span id="cb2-4"><a href="#cb2-4" aria-hidden="true" tabindex="-1"></a><span class="ex">./recode</span> <span class="at">-h</span></span>
<span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a> <span class="co"># get recode help:</span></span>
<span id="cb2-4"><a href="#cb2-4" aria-hidden="true" tabindex="-1"></a> <span class="ex">./recode</span> <span class="at">-h</span></span>
<span id="cb2-5"><a href="#cb2-5" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb2-6"><a href="#cb2-6" aria-hidden="true" tabindex="-1"></a><span class="co"># general syntax for recode passing to Enigma machine:</span></span>
<span id="cb2-7"><a href="#cb2-7" aria-hidden="true" tabindex="-1"></a><span class="ex">./recode</span> <span class="pp">[</span><span class="ss">options</span><span class="pp">]</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">&gt;</span>/dev/null</span>
<span id="cb2-8"><a href="#cb2-8" aria-hidden="true" tabindex="-1"></a><span class="co"># general syntax for recode without passing to Enigma machine:</span></span>
<span id="cb2-9"><a href="#cb2-9" aria-hidden="true" tabindex="-1"></a><span class="ex">./recode</span> <span class="pp">[</span><span class="ss">options</span><span class="pp">]</span></span>
<span id="cb2-6"><a href="#cb2-6" aria-hidden="true" tabindex="-1"></a> <span class="co"># general syntax for recode passing to Enigma machine:</span></span>
<span id="cb2-7"><a href="#cb2-7" aria-hidden="true" tabindex="-1"></a> <span class="ex">./recode</span> <span class="pp">[</span><span class="ss">options</span><span class="pp">]</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">&gt;</span>/dev/null</span>
<span id="cb2-8"><a href="#cb2-8" aria-hidden="true" tabindex="-1"></a> <span class="co"># general syntax for recode without passing to Enigma machine:</span></span>
<span id="cb2-9"><a href="#cb2-9" aria-hidden="true" tabindex="-1"></a> <span class="ex">./recode</span> <span class="pp">[</span><span class="ss">options</span><span class="pp">]</span></span>
<span id="cb2-10"><a href="#cb2-10" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb2-11"><a href="#cb2-11" aria-hidden="true" tabindex="-1"></a><span class="co"># recode prompts for settings; pass to Enigma machine:</span></span>
<span id="cb2-12"><a href="#cb2-12" aria-hidden="true" tabindex="-1"></a><span class="ex">./recode</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">&gt;</span>/dev/null</span>
<span id="cb2-11"><a href="#cb2-11" aria-hidden="true" tabindex="-1"></a> <span class="co"># recode prompts for settings; pass to Enigma machine:</span></span>
<span id="cb2-12"><a href="#cb2-12" aria-hidden="true" tabindex="-1"></a> <span class="ex">./recode</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">&gt;</span>/dev/null</span>
<span id="cb2-13"><a href="#cb2-13" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb2-14"><a href="#cb2-14" aria-hidden="true" tabindex="-1"></a><span class="co"># recode reads from input file, prompts for settings; passed to Enigma machine:</span></span>
<span id="cb2-15"><a href="#cb2-15" aria-hidden="true" tabindex="-1"></a><span class="ex">./recode</span> <span class="at">-finput</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">&gt;</span>/dev/null</span>
<span id="cb2-14"><a href="#cb2-14" aria-hidden="true" tabindex="-1"></a> <span class="co"># recode reads from input file, prompts for settings; passed to Enigma machine:</span></span>
<span id="cb2-15"><a href="#cb2-15" aria-hidden="true" tabindex="-1"></a> <span class="ex">./recode</span> <span class="at">-finput</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">&gt;</span>/dev/null</span>
<span id="cb2-16"><a href="#cb2-16" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb2-17"><a href="#cb2-17" aria-hidden="true" tabindex="-1"></a><span class="co"># recode reads config from string or file; passed to Enigma machine after</span></span>
<span id="cb2-18"><a href="#cb2-18" aria-hidden="true" tabindex="-1"></a><span class="co"># prompting for input:</span></span>
<span id="cb2-19"><a href="#cb2-19" aria-hidden="true" tabindex="-1"></a><span class="ex">./recode</span> <span class="at">-R</span><span class="op">&lt;</span>string<span class="kw">|</span><span class="fu">file</span><span class="op">&gt;</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">&gt;</span>/dev/null</span>
<span id="cb2-17"><a href="#cb2-17" aria-hidden="true" tabindex="-1"></a> <span class="co"># recode reads config from string or file; passed to Enigma machine after</span></span>
<span id="cb2-18"><a href="#cb2-18" aria-hidden="true" tabindex="-1"></a> <span class="co"># prompting for input:</span></span>
<span id="cb2-19"><a href="#cb2-19" aria-hidden="true" tabindex="-1"></a> <span class="ex">./recode</span> <span class="at">-R</span><span class="op">&lt;</span>string<span class="kw">|</span><span class="fu">file</span><span class="op">&gt;</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">&gt;</span>/dev/null</span>
<span id="cb2-20"><a href="#cb2-20" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb2-21"><a href="#cb2-21" aria-hidden="true" tabindex="-1"></a><span class="co"># write config to output file; passed to Enigma machine after prompting for</span></span>
<span id="cb2-22"><a href="#cb2-22" aria-hidden="true" tabindex="-1"></a><span class="co"># input:</span></span>
<span id="cb2-23"><a href="#cb2-23" aria-hidden="true" tabindex="-1"></a><span class="ex">./recode</span> <span class="at">-o</span><span class="op">&lt;</span>config<span class="op">&gt;</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">&gt;</span>/dev/null</span>
<span id="cb2-21"><a href="#cb2-21" aria-hidden="true" tabindex="-1"></a> <span class="co"># write config to output file; passed to Enigma machine after prompting for</span></span>
<span id="cb2-22"><a href="#cb2-22" aria-hidden="true" tabindex="-1"></a> <span class="co"># input:</span></span>
<span id="cb2-23"><a href="#cb2-23" aria-hidden="true" tabindex="-1"></a> <span class="ex">./recode</span> <span class="at">-o</span><span class="op">&lt;</span>config<span class="op">&gt;</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">&gt;</span>/dev/null</span>
<span id="cb2-24"><a href="#cb2-24" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb2-25"><a href="#cb2-25" aria-hidden="true" tabindex="-1"></a><span class="co"># pseudo-randomly select settings</span></span>
<span id="cb2-26"><a href="#cb2-26" aria-hidden="true" tabindex="-1"></a><span class="ex">./recode</span> <span class="at">-r</span></span>
<span id="cb2-25"><a href="#cb2-25" aria-hidden="true" tabindex="-1"></a> <span class="co"># pseudo-randomly select settings</span></span>
<span id="cb2-26"><a href="#cb2-26" aria-hidden="true" tabindex="-1"></a> <span class="ex">./recode</span> <span class="at">-r</span></span>
<span id="cb2-27"><a href="#cb2-27" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb2-28"><a href="#cb2-28" aria-hidden="true" tabindex="-1"></a><span class="co"># show Enigma machine settings after selection / generation:</span></span>
<span id="cb2-29"><a href="#cb2-29" aria-hidden="true" tabindex="-1"></a><span class="ex">./recode</span> <span class="at">-v</span></span></code></pre></div>
<span id="cb2-28"><a href="#cb2-28" aria-hidden="true" tabindex="-1"></a> <span class="co"># show Enigma machine settings after selection / generation:</span></span>
<span id="cb2-29"><a href="#cb2-29" aria-hidden="true" tabindex="-1"></a> <span class="ex">./recode</span> <span class="at">-v</span></span></code></pre></div>
<p><strong>NOTE</strong>: in <a href="recode.c">recode</a> no spaces between options and option arguments
are allowed.</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>
<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>
<p>What does:</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="bu">echo</span> <span class="kw">|</span> <span class="ex">./recode</span></span>
<span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a><span class="bu">echo</span> <span class="kw">|</span> <span class="ex">./recode</span> <span class="at">-v</span></span></code></pre></div>
<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="bu">echo</span> <span class="kw">|</span> <span class="ex">./recode</span></span>
<span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a> <span class="bu">echo</span> <span class="kw">|</span> <span class="ex">./recode</span> <span class="at">-v</span></span></code></pre></div>
<p>do?</p>
<h2 id="alternate-code">Alternate code:</h2>
<p>This version, <a href="prog.alt.c">prog.alt.c</a>, writes a character at a time, sleeping
after each character, so that one can read it more easily (for longer output)
and to make it a bit more like the real thing.</p>
<h3 id="alternate-build">Alternate 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> alt</span></code></pre></div>
<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> alt</span></code></pre></div>
<p>The default time to sleep is 400000 microseconds but you can change this by
doing:</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="fu">make</span> clobber SLEEP=600000 alt</span></code></pre></div>
<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> clobber SLEEP=600000 alt</span></code></pre></div>
<p>to change it to 600000 microseconds. It guards against negative numbers.</p>
<h3 id="alternate-use">Alternate use:</h3>
<p>Use <code>prog.alt</code> as you would <code>prog</code> above.</p>
<h3 id="alternate-try">Alternate 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.alt.sh</span></span></code></pre></div>
<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.alt.sh</span></span></code></pre></div>
<p>Notice how only the last part should use the <code>prog.alt</code>. Why? Try it and find
out! Can you figure out why this works this way?</p>
<h2 id="judges-remarks">Judges’ remarks:</h2>
@@ -206,7 +205,7 @@ out! Can you figure out why this works this way?</p>
<ul>
<li><a href="enigma.1">enigma.1</a> - A useful man page for this entry. To render, try:</li>
</ul>
<div class="sourceCode" id="cb8"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb8-1"><a href="#cb8-1" aria-hidden="true" tabindex="-1"></a><span class="fu">man</span> ./enigma.1</span></code></pre></div>
<div class="sourceCode" id="cb8"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb8-1"><a href="#cb8-1" aria-hidden="true" tabindex="-1"></a> <span class="fu">man</span> ./enigma.1</span></code></pre></div>
<ul>
<li><a href="recode.html">recode.html</a> (or <a href="recode.html">recode.html</a> if reading on GitHub)
<ul>
@@ -318,7 +317,7 @@ leave this in for historical purposes.</p>
for input (end with EOF). At that point it’ll process the input string and print
the result (after finishing the enciphering).</p>
<p>If you run it like:</p>
<div class="sourceCode" id="cb9"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb9-1"><a href="#cb9-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./prog</span> <span class="at">-</span></span></code></pre></div>
<div class="sourceCode" id="cb9"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb9-1"><a href="#cb9-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">./prog</span> <span class="at">-</span></span></code></pre></div>
<p>It will prompt you for the settings of the machine (example below).</p>
<p>The first group is in the order of
<a href="https://www.ciphermachinesandcryptology.com/en/enigmatech.htm">rotor</a> (number),
@@ -339,78 +338,78 @@ on GitHub see <a href="chocolate-cake.html">here</a>) though one might need a di
of exercise after taking up the challenge! :-) These however show the general
program as well as how to use the two winning entries of the <a href="https://en.wikipedia.org/wiki/Morse_code">Morse
code</a> that I referred to earlier:</p>
<div class="sourceCode" id="cb10"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb10-1"><a href="#cb10-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> ./prog <span class="at">-</span></span>
<span id="cb10-2"><a href="#cb10-2" aria-hidden="true" tabindex="-1"></a><span class="ex">Ring</span> 1: 3</span>
<span id="cb10-3"><a href="#cb10-3" aria-hidden="true" tabindex="-1"></a><span class="ex">Setting</span> 1: I</span>
<span id="cb10-4"><a href="#cb10-4" aria-hidden="true" tabindex="-1"></a><span class="ex">Position</span> 1: O</span>
<span id="cb10-5"><a href="#cb10-5" aria-hidden="true" tabindex="-1"></a><span class="ex">Ring</span> 2: 1</span>
<span id="cb10-6"><a href="#cb10-6" aria-hidden="true" tabindex="-1"></a><span class="ex">Setting</span> 2: C</span>
<span id="cb10-7"><a href="#cb10-7" aria-hidden="true" tabindex="-1"></a><span class="ex">Position</span> 2: C</span>
<span id="cb10-8"><a href="#cb10-8" aria-hidden="true" tabindex="-1"></a><span class="ex">Ring</span> 3: 5</span>
<span id="cb10-9"><a href="#cb10-9" aria-hidden="true" tabindex="-1"></a><span class="ex">Setting</span> 3: C</span>
<span id="cb10-10"><a href="#cb10-10" aria-hidden="true" tabindex="-1"></a><span class="ex">Position</span> 3: Z</span>
<span id="cb10-11"><a href="#cb10-11" aria-hidden="true" tabindex="-1"></a><span class="ex">Reflector:</span> 2</span>
<span id="cb10-12"><a href="#cb10-12" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 1: CO</span>
<span id="cb10-13"><a href="#cb10-13" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 2: DE</span>
<span id="cb10-14"><a href="#cb10-14" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 3: SN</span>
<span id="cb10-15"><a href="#cb10-15" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 4: XY</span>
<span id="cb10-16"><a href="#cb10-16" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 5: MS</span>
<span id="cb10-17"><a href="#cb10-17" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 6: AT</span>
<span id="cb10-18"><a href="#cb10-18" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 7: VF</span>
<span id="cb10-19"><a href="#cb10-19" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 8: UR</span>
<span id="cb10-20"><a href="#cb10-20" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 9: KL</span>
<span id="cb10-21"><a href="#cb10-21" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 10: BJ</span>
<span id="cb10-22"><a href="#cb10-22" aria-hidden="true" tabindex="-1"></a><span class="ex">IOCCC</span></span>
<span id="cb10-23"><a href="#cb10-23" aria-hidden="true" tabindex="-1"></a><span class="ex">^D</span></span>
<span id="cb10-24"><a href="#cb10-24" aria-hidden="true" tabindex="-1"></a><span class="ex">CFDRG</span></span></code></pre></div>
<div class="sourceCode" id="cb10"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb10-1"><a href="#cb10-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> ./prog <span class="at">-</span></span>
<span id="cb10-2"><a href="#cb10-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">Ring</span> 1: 3</span>
<span id="cb10-3"><a href="#cb10-3" aria-hidden="true" tabindex="-1"></a> <span class="ex">Setting</span> 1: I</span>
<span id="cb10-4"><a href="#cb10-4" aria-hidden="true" tabindex="-1"></a> <span class="ex">Position</span> 1: O</span>
<span id="cb10-5"><a href="#cb10-5" aria-hidden="true" tabindex="-1"></a> <span class="ex">Ring</span> 2: 1</span>
<span id="cb10-6"><a href="#cb10-6" aria-hidden="true" tabindex="-1"></a> <span class="ex">Setting</span> 2: C</span>
<span id="cb10-7"><a href="#cb10-7" aria-hidden="true" tabindex="-1"></a> <span class="ex">Position</span> 2: C</span>
<span id="cb10-8"><a href="#cb10-8" aria-hidden="true" tabindex="-1"></a> <span class="ex">Ring</span> 3: 5</span>
<span id="cb10-9"><a href="#cb10-9" aria-hidden="true" tabindex="-1"></a> <span class="ex">Setting</span> 3: C</span>
<span id="cb10-10"><a href="#cb10-10" aria-hidden="true" tabindex="-1"></a> <span class="ex">Position</span> 3: Z</span>
<span id="cb10-11"><a href="#cb10-11" aria-hidden="true" tabindex="-1"></a> <span class="ex">Reflector:</span> 2</span>
<span id="cb10-12"><a href="#cb10-12" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 1: CO</span>
<span id="cb10-13"><a href="#cb10-13" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 2: DE</span>
<span id="cb10-14"><a href="#cb10-14" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 3: SN</span>
<span id="cb10-15"><a href="#cb10-15" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 4: XY</span>
<span id="cb10-16"><a href="#cb10-16" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 5: MS</span>
<span id="cb10-17"><a href="#cb10-17" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 6: AT</span>
<span id="cb10-18"><a href="#cb10-18" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 7: VF</span>
<span id="cb10-19"><a href="#cb10-19" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 8: UR</span>
<span id="cb10-20"><a href="#cb10-20" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 9: KL</span>
<span id="cb10-21"><a href="#cb10-21" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 10: BJ</span>
<span id="cb10-22"><a href="#cb10-22" aria-hidden="true" tabindex="-1"></a> <span class="ex">IOCCC</span></span>
<span id="cb10-23"><a href="#cb10-23" aria-hidden="true" tabindex="-1"></a> <span class="ex">^D</span></span>
<span id="cb10-24"><a href="#cb10-24" aria-hidden="true" tabindex="-1"></a> <span class="ex">CFDRG</span></span></code></pre></div>
<p>Notice that all output except the deciphered/enciphered text is sent to stdout.</p>
<p>If I didn’t specify the <code>-</code> by e.g. <code>echo IOCCC | ./prog</code> then it will use the
default settings; as the judges suggest this invocation I will not show it here.</p>
<p>But you can also type it out like this:</p>
<div class="sourceCode" id="cb11"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> ./prog</span>
<span id="cb11-2"><a href="#cb11-2" aria-hidden="true" tabindex="-1"></a><span class="ex">IOCCC</span></span>
<span id="cb11-3"><a href="#cb11-3" aria-hidden="true" tabindex="-1"></a><span class="ex">UUMMX</span></span></code></pre></div>
<div class="sourceCode" id="cb11"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> ./prog</span>
<span id="cb11-2"><a href="#cb11-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">IOCCC</span></span>
<span id="cb11-3"><a href="#cb11-3" aria-hidden="true" tabindex="-1"></a> <span class="ex">UUMMX</span></span></code></pre></div>
<p>The IOCCC comes from stdin; the <code>UUMMX</code> is written to stdout.</p>
<p>If I compile the 2014 entry and copy it to my local directory as
<code>vik</code> I might do:</p>
<div class="sourceCode" id="cb12"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb12-1"><a href="#cb12-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> echo TEST<span class="kw">|</span><span class="ex">./prog</span> <span class="kw">|</span><span class="ex">./vik</span> <span class="kw">|</span> <span class="ex">mplayer</span> <span class="at">-demuxer</span> rawaudio <span class="at">-</span></span></code></pre></div>
<div class="sourceCode" id="cb12"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb12-1"><a href="#cb12-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> echo TEST<span class="kw">|</span><span class="ex">./prog</span> <span class="kw">|</span><span class="ex">./vik</span> <span class="kw">|</span> <span class="ex">mplayer</span> <span class="at">-demuxer</span> rawaudio <span class="at">-</span></span></code></pre></div>
<p>And you would hear <a href="https://en.wikipedia.org/wiki/Morse_code">Morse code</a> of the
<a href="https://www.ciphermachinesandcryptology.com/en/enigmatech.htm">Enigma</a> output
of ‘TEST’ (i.e. <code>KCWV</code>)! Or perhaps not in this case. I’m not sure: I discovered
a bug in that entry (Fedora, CentOS and macOS all affected).</p>
<p>For example I can use the syntax provided in the winning remarks along with my
entry to write it to a file. Say:</p>
<div class="sourceCode" id="cb13"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb13-1"><a href="#cb13-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> echo TEST<span class="kw">|</span><span class="ex">./prog</span> <span class="kw">|</span><span class="ex">./vik</span> <span class="op">&gt;</span> test.raw</span>
<span id="cb13-2"><a href="#cb13-2" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> ./vik e <span class="op">&lt;</span> test.raw <span class="kw">|</span> <span class="ex">./prog</span></span>
<span id="cb13-3"><a href="#cb13-3" aria-hidden="true" tabindex="-1"></a><span class="ex">LEST</span></span></code></pre></div>
<div class="sourceCode" id="cb13"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb13-1"><a href="#cb13-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> echo TEST<span class="kw">|</span><span class="ex">./prog</span> <span class="kw">|</span><span class="ex">./vik</span> <span class="op">&gt;</span> test.raw</span>
<span id="cb13-2"><a href="#cb13-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> ./vik e <span class="op">&lt;</span> test.raw <span class="kw">|</span> <span class="ex">./prog</span></span>
<span id="cb13-3"><a href="#cb13-3" aria-hidden="true" tabindex="-1"></a> <span class="ex">LEST</span></span></code></pre></div>
<p>Why did that happen? This shows more details:</p>
<div class="sourceCode" id="cb14"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb14-1"><a href="#cb14-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> ./vik e <span class="op">&lt;</span> test.raw</span>
<span id="cb14-2"><a href="#cb14-2" aria-hidden="true" tabindex="-1"></a><span class="ex">SCWV</span></span></code></pre></div>
<div class="sourceCode" id="cb14"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb14-1"><a href="#cb14-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> ./vik e <span class="op">&lt;</span> test.raw</span>
<span id="cb14-2"><a href="#cb14-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">SCWV</span></span></code></pre></div>
<p>However as can be seen the first char is wrong:</p>
<div class="sourceCode" id="cb15"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb15-1"><a href="#cb15-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> echo TEST<span class="kw">|</span><span class="ex">./prog</span></span>
<span id="cb15-2"><a href="#cb15-2" aria-hidden="true" tabindex="-1"></a><span class="ex">KCWV</span></span></code></pre></div>
<div class="sourceCode" id="cb15"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb15-1"><a href="#cb15-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> echo TEST<span class="kw">|</span><span class="ex">./prog</span></span>
<span id="cb15-2"><a href="#cb15-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">KCWV</span></span></code></pre></div>
<p>And piping the original output to my entry itself you get the original input:</p>
<div class="sourceCode" id="cb16"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb16-1"><a href="#cb16-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> echo TEST <span class="kw">|</span> <span class="ex">./prog</span> <span class="kw">|</span> <span class="ex">./prog</span></span>
<span id="cb16-2"><a href="#cb16-2" aria-hidden="true" tabindex="-1"></a><span class="ex">TEST</span></span></code></pre></div>
<div class="sourceCode" id="cb16"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb16-1"><a href="#cb16-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> echo TEST <span class="kw">|</span> <span class="ex">./prog</span> <span class="kw">|</span> <span class="ex">./prog</span></span>
<span id="cb16-2"><a href="#cb16-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">TEST</span></span></code></pre></div>
<p>I’m not sure what causes that or if there’s a way to fix it but that’s the
idea anyway. Neither do I know if the original transcoding is correct.</p>
<p>What if I use the input string <code>LEST</code> instead? In that case it worked fine:</p>
<div class="sourceCode" id="cb17"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb17-1"><a href="#cb17-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> echo LEST <span class="kw">|</span> <span class="ex">./prog</span> <span class="kw">|</span> <span class="ex">./vik</span> <span class="op">&gt;</span> lest.raw</span>
<span id="cb17-2"><a href="#cb17-2" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> ./vik e <span class="op">&lt;</span> lest.raw <span class="kw">|</span> <span class="ex">./prog</span></span>
<span id="cb17-3"><a href="#cb17-3" aria-hidden="true" tabindex="-1"></a><span class="ex">LEST</span></span></code></pre></div>
<div class="sourceCode" id="cb17"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb17-1"><a href="#cb17-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> echo LEST <span class="kw">|</span> <span class="ex">./prog</span> <span class="kw">|</span> <span class="ex">./vik</span> <span class="op">&gt;</span> lest.raw</span>
<span id="cb17-2"><a href="#cb17-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> ./vik e <span class="op">&lt;</span> lest.raw <span class="kw">|</span> <span class="ex">./prog</span></span>
<span id="cb17-3"><a href="#cb17-3" aria-hidden="true" tabindex="-1"></a> <span class="ex">LEST</span></span></code></pre></div>
<p>But there’s one obvious question, right? Let’s try the most important one:</p>
<div class="sourceCode" id="cb18"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb18-1"><a href="#cb18-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> echo IOCCC <span class="kw">|</span> <span class="ex">./prog</span> <span class="kw">|</span> <span class="ex">./vik</span> <span class="op">&gt;</span> ioccc.raw</span>
<span id="cb18-2"><a href="#cb18-2" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> ./vik e <span class="op">&lt;</span> ioccc.raw</span>
<span id="cb18-3"><a href="#cb18-3" aria-hidden="true" tabindex="-1"></a><span class="ex">UUMMX</span></span>
<span id="cb18-4"><a href="#cb18-4" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> ./vik e <span class="op">&lt;</span> ioccc.raw <span class="kw">|</span> <span class="ex">./prog</span></span>
<span id="cb18-5"><a href="#cb18-5" aria-hidden="true" tabindex="-1"></a><span class="ex">IOCCC</span></span></code></pre></div>
<div class="sourceCode" id="cb18"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb18-1"><a href="#cb18-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> echo IOCCC <span class="kw">|</span> <span class="ex">./prog</span> <span class="kw">|</span> <span class="ex">./vik</span> <span class="op">&gt;</span> ioccc.raw</span>
<span id="cb18-2"><a href="#cb18-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> ./vik e <span class="op">&lt;</span> ioccc.raw</span>
<span id="cb18-3"><a href="#cb18-3" aria-hidden="true" tabindex="-1"></a> <span class="ex">UUMMX</span></span>
<span id="cb18-4"><a href="#cb18-4" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> ./vik e <span class="op">&lt;</span> ioccc.raw <span class="kw">|</span> <span class="ex">./prog</span></span>
<span id="cb18-5"><a href="#cb18-5" aria-hidden="true" tabindex="-1"></a> <span class="ex">IOCCC</span></span></code></pre></div>
<p>Phew! The program redeemed itself after the test failure! :)</p>
<p>(Technically above it didn’t print a newline after the output and this is how it
is with some of the things I pasted in the other file and maybe others here
too. Notice also how it showed the same output that my program gave it - <code>UUMMX</code>.)</p>
<p>What about the other <a href="../../1998/dorssel/dorssel.c">Morse code entry</a>?</p>
<div class="sourceCode" id="cb19"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb19-1"><a href="#cb19-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> echo IOCCC <span class="kw">|</span> <span class="ex">./prog</span> <span class="kw">|</span> <span class="ex">./dorssel</span></span>
<span id="cb19-2"><a href="#cb19-2" aria-hidden="true" tabindex="-1"></a><span class="ex">..-</span> ..- <span class="at">--</span> <span class="at">--</span> <span class="at">-..-</span></span></code></pre></div>
<div class="sourceCode" id="cb19"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb19-1"><a href="#cb19-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> echo IOCCC <span class="kw">|</span> <span class="ex">./prog</span> <span class="kw">|</span> <span class="ex">./dorssel</span></span>
<span id="cb19-2"><a href="#cb19-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">..-</span> ..- <span class="at">--</span> <span class="at">--</span> <span class="at">-..-</span></span></code></pre></div>
<h3 id="the-recode.c-configurator"><a name="recode" href="#toc">The recode.c configurator</a></h3>
<p>I have included a supplementary program <a href="recode.c">recode.c</a> that can do a number of
things which acts as a kind of wrapper and configurator to my entry. By default
@@ -441,26 +440,26 @@ make it more flexible by a wrapper program.</p>
<p>The parser is in a sense rather rudimentary but allows for both interactive and
automatic (e.g. via the <a href="recode.c">recode</a> program) input. This does mean that
something like the following can happen:</p>
<div class="sourceCode" id="cb20"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb20-1"><a href="#cb20-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> ./prog <span class="at">-</span></span>
<span id="cb20-2"><a href="#cb20-2" aria-hidden="true" tabindex="-1"></a><span class="ex">Ring</span> 1: 1AB</span>
<span id="cb20-3"><a href="#cb20-3" aria-hidden="true" tabindex="-1"></a><span class="ex">Setting</span> 1: Position 1: Ring 2: 2CD</span>
<span id="cb20-4"><a href="#cb20-4" aria-hidden="true" tabindex="-1"></a><span class="ex">Setting</span> 2: Position 2: Ring 3: 3</span>
<span id="cb20-5"><a href="#cb20-5" aria-hidden="true" tabindex="-1"></a><span class="ex">Setting</span> 3: A</span>
<span id="cb20-6"><a href="#cb20-6" aria-hidden="true" tabindex="-1"></a><span class="ex">Position</span> 3: B</span>
<span id="cb20-7"><a href="#cb20-7" aria-hidden="true" tabindex="-1"></a><span class="ex">Reflector:</span> 1A</span>
<span id="cb20-8"><a href="#cb20-8" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 1: BC</span>
<span id="cb20-9"><a href="#cb20-9" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 2: ..</span>
<span id="cb20-10"><a href="#cb20-10" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 3: ..</span>
<span id="cb20-11"><a href="#cb20-11" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 4: DE</span>
<span id="cb20-12"><a href="#cb20-12" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 5: FG</span>
<span id="cb20-13"><a href="#cb20-13" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 6: HI</span>
<span id="cb20-14"><a href="#cb20-14" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 7: JK</span>
<span id="cb20-15"><a href="#cb20-15" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 8: LM</span>
<span id="cb20-16"><a href="#cb20-16" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 9: NO</span>
<span id="cb20-17"><a href="#cb20-17" aria-hidden="true" tabindex="-1"></a><span class="ex">Plugboard</span> pair 10: PQ</span>
<span id="cb20-18"><a href="#cb20-18" aria-hidden="true" tabindex="-1"></a><span class="ex">IOCCC</span></span>
<span id="cb20-19"><a href="#cb20-19" aria-hidden="true" tabindex="-1"></a><span class="ex">WD</span></span>
<span id="cb20-20"><a href="#cb20-20" aria-hidden="true" tabindex="-1"></a><span class="ex">SIRDK</span></span></code></pre></div>
<div class="sourceCode" id="cb20"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb20-1"><a href="#cb20-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> ./prog <span class="at">-</span></span>
<span id="cb20-2"><a href="#cb20-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">Ring</span> 1: 1AB</span>
<span id="cb20-3"><a href="#cb20-3" aria-hidden="true" tabindex="-1"></a> <span class="ex">Setting</span> 1: Position 1: Ring 2: 2CD</span>
<span id="cb20-4"><a href="#cb20-4" aria-hidden="true" tabindex="-1"></a> <span class="ex">Setting</span> 2: Position 2: Ring 3: 3</span>
<span id="cb20-5"><a href="#cb20-5" aria-hidden="true" tabindex="-1"></a> <span class="ex">Setting</span> 3: A</span>
<span id="cb20-6"><a href="#cb20-6" aria-hidden="true" tabindex="-1"></a> <span class="ex">Position</span> 3: B</span>
<span id="cb20-7"><a href="#cb20-7" aria-hidden="true" tabindex="-1"></a> <span class="ex">Reflector:</span> 1A</span>
<span id="cb20-8"><a href="#cb20-8" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 1: BC</span>
<span id="cb20-9"><a href="#cb20-9" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 2: ..</span>
<span id="cb20-10"><a href="#cb20-10" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 3: ..</span>
<span id="cb20-11"><a href="#cb20-11" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 4: DE</span>
<span id="cb20-12"><a href="#cb20-12" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 5: FG</span>
<span id="cb20-13"><a href="#cb20-13" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 6: HI</span>
<span id="cb20-14"><a href="#cb20-14" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 7: JK</span>
<span id="cb20-15"><a href="#cb20-15" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 8: LM</span>
<span id="cb20-16"><a href="#cb20-16" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 9: NO</span>
<span id="cb20-17"><a href="#cb20-17" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair 10: PQ</span>
<span id="cb20-18"><a href="#cb20-18" aria-hidden="true" tabindex="-1"></a> <span class="ex">IOCCC</span></span>
<span id="cb20-19"><a href="#cb20-19" aria-hidden="true" tabindex="-1"></a> <span class="ex">WD</span></span>
<span id="cb20-20"><a href="#cb20-20" aria-hidden="true" tabindex="-1"></a> <span class="ex">SIRDK</span></span></code></pre></div>
<p>First of all: what is that <code>WD</code>? I didn’t type that but it showed up hitting
<code>ctrl-d</code> to end input.</p>
<p>If everything is input correctly it would show nothing except the actual
@@ -494,10 +493,10 @@ GitHub).</p>
should help you remember (though not at this time in our world it might help you
later on?). This might become even more useful after the challenge is accepted,
accomplished and made use of! :)</p>
<div class="sourceCode" id="cb21"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb21-1"><a href="#cb21-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> echo ABC <span class="kw">|</span> <span class="ex">./prog</span></span>
<span id="cb21-2"><a href="#cb21-2" aria-hidden="true" tabindex="-1"></a><span class="ex">GYM</span></span>
<span id="cb21-3"><a href="#cb21-3" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> echo ABC <span class="kw">|</span> <span class="ex">./prog</span> <span class="kw">|</span> <span class="ex">./prog</span></span>
<span id="cb21-4"><a href="#cb21-4" aria-hidden="true" tabindex="-1"></a><span class="ex">ABC</span></span></code></pre></div>
<div class="sourceCode" id="cb21"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb21-1"><a href="#cb21-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> echo ABC <span class="kw">|</span> <span class="ex">./prog</span></span>
<span id="cb21-2"><a href="#cb21-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">GYM</span></span>
<span id="cb21-3"><a href="#cb21-3" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> echo ABC <span class="kw">|</span> <span class="ex">./prog</span> <span class="kw">|</span> <span class="ex">./prog</span></span>
<span id="cb21-4"><a href="#cb21-4" aria-hidden="true" tabindex="-1"></a> <span class="ex">ABC</span></span></code></pre></div>
<h3 id="on-the-source-code-layout"><a name="layout" href="#toc">On the source code layout</a></h3>
<p>The layout of <a href="recode.c">recode.c</a> isn’t too significant (but see below) but I want to
mention <a href="prog.c">prog.c</a> especially:</p>
@@ -525,9 +524,9 @@ ended his life. (I later made a bug fix but I consider this inconsequential).</p
<p>It’s an <a href="https://en.wikipedia.org/wiki/Enigma_machine">Enigma machine</a> simulator! Isn’t
that proof that it’s obfuscated itself?! :) Silliness aside <a href="obfuscation.txt">obfuscation.txt</a>
has some of the ways I think this entry is obfuscated. To decipher try:</p>
<div class="sourceCode" id="cb23"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb23-1"><a href="#cb23-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./recode</span> <span class="at">-Robfuscation.key</span> <span class="at">-fobfuscation.txt</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">&gt;</span>/dev/null <span class="op">&gt;</span> obfuscation.md</span></code></pre></div>
<div class="sourceCode" id="cb23"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb23-1"><a href="#cb23-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">./recode</span> <span class="at">-Robfuscation.key</span> <span class="at">-fobfuscation.txt</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">&gt;</span>/dev/null <span class="op">&gt;</span> obfuscation.md</span></code></pre></div>
<p>To encipher:</p>
<div class="sourceCode" id="cb24"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb24-1"><a href="#cb24-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./recode</span> <span class="at">-Robfuscation.key</span> <span class="at">-fobfuscation.md</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">&gt;</span>/dev/null <span class="op">&gt;</span> obfuscation.txt</span></code></pre></div>
<div class="sourceCode" id="cb24"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb24-1"><a href="#cb24-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">./recode</span> <span class="at">-Robfuscation.key</span> <span class="at">-fobfuscation.md</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">&gt;</span>/dev/null <span class="op">&gt;</span> obfuscation.txt</span></code></pre></div>
<p>The file <a href="obfuscation.key">obfuscation.key</a> is the key to decipher/encipher
<a href="obfuscation.txt">obfuscation.txt</a>.</p>
<p>For the lazy <a href="obfuscation.html">obfuscation.html</a> has the deciphered version. I am afraid I’m not
@@ -540,8 +539,8 @@ GitHub), not enciphered, one might just go there instead. Still it’s a fun way
to explore this entry.</p>
<p>As for the <a href="obfuscation.key">obfuscation.key</a> file if you observe the contents you’ll find the
word <code>OBFUSCATION</code>:</p>
<pre><code>2OB5FU1SC2ATIONCDEFGHJKLMPQRYZ
OB FU SC ATION</code></pre>
<pre><code> 2OB5FU1SC2ATIONCDEFGHJKLMPQRYZ
OB FU SC ATION</code></pre>
<h3 id="bugs-limitations-differences-from-the-real-enigma-machines-and-general-notes"><a name="bugs" href="#toc">Bugs, limitations, differences from the real Enigma machines and general notes</a></h3>
<p>Ways that my simulator differs from the real thing. Not all of these are bugs
and some could be considered features; others are just differences.</p>
@@ -688,8 +687,8 @@ simulator make sure to use
<a href="https://www.ciphermachinesandcryptology.com/en/enigmatech.htm#Rotors">Rotors</a>
I, II and III and the starting positions at B, B and C respectively (as in left,
centre, right). To do this click the button at the top right that looks like:</p>
<pre><code>o-&gt;
&lt;-o</code></pre>
<pre><code> o-&gt;
&lt;-o</code></pre>
<p>and then select the rotors. Next click the button again at the left of the
rotor selection ‘screen’. Then use the arrow buttons above each rotor to set
from left to right B, B and C. After this you can type your message in the input
@@ -704,7 +703,7 @@ determine if the ring settings being different from <code>ABC</code> would cause
(this is the thing I mention I’m uncertain about in the bugs section).</p>
<p>Going back to the configuring the online simulator try inputting the text IOCCC
and you’ll see the resulting text being:</p>
<pre><code>UUMMX</code></pre>
<pre><code> UUMMX</code></pre>
<p>Which is exactly as my entry shows! So at least for the starting position <code>BBC</code>
and an empty <a href="https://www.cryptomuseum.com/crypto/enigma/i/sb.htm">plugboard</a>
and the other defaults in my entry (which appear to be consistent with the