add hack-a-round for language specified markdown code blocks
When language is specified in a markdown code block such as:
````
```c
printf("Hello, world!\n");
```
````
is used, the resulting HTML as produced by `pandoc(1)` combined
with our revised `ioccc.css` is not intent the code block well.
A temporary "_hack-a-round_" is to turn the "markdown code language
specifier" into an HTML comment. For example:
````
```<!---c-->
printf("Hello, world!\n");
```
````
This commits turns off existing markdown code language specifiers
for now, while preserving our ability to restore them in the future
when a better "_hack-a-round_" to the "markdown code language
specifier" problem is found.
The HTML impact if this "_hack-a-round_" is to produce HTML that
looks like this:
```
<pre class="<!---c-->"><code> .. </code></pre>
```
We might be able to create a complex set of classes for each markdown
code language (there won't be very many) in `ioccc.css`, or we might
find a more general CSS (or maybe `pandoc(1)`?) solution.
For now, this hack-a-round will have to do.
This commit is contained in:
Landon Curt Noll committed
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@@ -170,34 +170,34 @@ with the Roman numeral, showing their actual orders etc.), the reflectors
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<p>In this file I will show an example of each feature and then get to the
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wonderful ‘challenge’ for everyone.</p>
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<h1 id="options"><a name="options" href="#toc">Options</a></h1>
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<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="ex">./recode</span> <span class="at">-h</span></span>
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<span id="cb1-2"><a href="#cb1-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">usage:</span> ./recode <span class="pp">[</span><span class="ss">options</span><span class="pp">]</span></span>
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<span id="cb1-3"><a href="#cb1-3" aria-hidden="true" tabindex="-1"></a> <span class="ex">-v</span> display selected settings</span>
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<span id="cb1-4"><a href="#cb1-4" aria-hidden="true" tabindex="-1"></a> <span class="ex">-r</span> pseudo-randomly select settings</span>
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<span id="cb1-5"><a href="#cb1-5" aria-hidden="true" tabindex="-1"></a> <span class="ex">-f</span><span class="op"><</span>input file<span class="op">></span> read file for Enigma input</span>
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<span id="cb1-6"><a href="#cb1-6" aria-hidden="true" tabindex="-1"></a> <span class="ex">-R</span><span class="op"><</span>string<span class="kw">|</span><span class="fu">file</span><span class="op">></span> init settings from settings string or file</span>
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<span id="cb1-7"><a href="#cb1-7" aria-hidden="true" tabindex="-1"></a> <span class="ex">-o</span><span class="op"><</span>output file<span class="op">></span> write settings to file</span></code></pre></div>
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<pre class="<!---sh-->"><code> ./recode -h
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usage: ./recode [options]
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-v display selected settings
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-r pseudo-randomly select settings
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-f<input file> read file for Enigma input
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-R<string|file> init settings from settings string or file
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-o<output file> write settings to file</code></pre>
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<p><code>-r</code> randomises settings. It won’t prompt you for settings but it will for input
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if you don’t give the option to read in a file for input.</p>
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<p><code>-v</code> shows selected settings. For example combining <code>-r</code> and <code>-v</code>:</p>
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<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">$</span> echo IOCCC <span class="kw">|</span> <span class="ex">./recode</span> <span class="at">-r</span> <span class="at">-v</span></span>
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<span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">Ring</span> 1: <span class="er">(</span> <span class="ex">I</span><span class="kw">)</span> <span class="ex">EKMFLGDQVZNTOWYHXUSPAIBRCJ</span></span>
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<span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a> <span class="ex">Ring</span> 2: <span class="er">(</span> <span class="ex">V</span><span class="kw">)</span> <span class="ex">VZBRGITYUPSDNHLXAWMJQOFECK</span></span>
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<span id="cb2-4"><a href="#cb2-4" aria-hidden="true" tabindex="-1"></a> <span class="ex">Ring</span> 3: <span class="er">(</span> <span class="ex">IV</span><span class="kw">)</span> <span class="ex">ESOVPZJAYQUIRHXLNFTGKDCMWB</span></span>
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<span id="cb2-5"><a href="#cb2-5" aria-hidden="true" tabindex="-1"></a> <span class="ex">Ring</span> settings: WAR</span>
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<span id="cb2-6"><a href="#cb2-6" aria-hidden="true" tabindex="-1"></a> <span class="ex">Ring</span> positions: XKE</span>
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<span id="cb2-7"><a href="#cb2-7" aria-hidden="true" tabindex="-1"></a> <span class="ex">Reflector:</span> <span class="er">(</span><span class="ex">B</span><span class="kw">)</span> <span class="ex">YRUHQSLDPXNGOKMIEBFZCWVJAT</span></span>
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<span id="cb2-8"><a href="#cb2-8" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#01: XE</span></span>
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<span id="cb2-9"><a href="#cb2-9" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#02: HJ</span></span>
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<span id="cb2-10"><a href="#cb2-10" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#03: SA</span></span>
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<span id="cb2-11"><a href="#cb2-11" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#04: PY</span></span>
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<span id="cb2-12"><a href="#cb2-12" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#05: CI</span></span>
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<span id="cb2-13"><a href="#cb2-13" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#06: ZB</span></span>
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<span id="cb2-14"><a href="#cb2-14" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#07: WD</span></span>
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<span id="cb2-15"><a href="#cb2-15" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#08: QN</span></span>
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<span id="cb2-16"><a href="#cb2-16" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#09: RU</span></span>
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<span id="cb2-17"><a href="#cb2-17" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#10: VG</span></span>
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<span id="cb2-18"><a href="#cb2-18" aria-hidden="true" tabindex="-1"></a> <span class="ex">1WX5AK4RE1XEHJSAPYCIZBWDQNRUVGIOCCC</span></span></code></pre></div>
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<pre class="<!---sh-->"><code> $ echo IOCCC | ./recode -r -v
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Ring 1: ( I) EKMFLGDQVZNTOWYHXUSPAIBRCJ
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Ring 2: ( V) VZBRGITYUPSDNHLXAWMJQOFECK
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Ring 3: ( IV) ESOVPZJAYQUIRHXLNFTGKDCMWB
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Ring settings: WAR
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Ring positions: XKE
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Reflector: (B) YRUHQSLDPXNGOKMIEBFZCWVJAT
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Plugboard pair #01: XE
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Plugboard pair #02: HJ
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Plugboard pair #03: SA
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Plugboard pair #04: PY
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Plugboard pair #05: CI
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Plugboard pair #06: ZB
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Plugboard pair #07: WD
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Plugboard pair #08: QN
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Plugboard pair #09: RU
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Plugboard pair #10: VG
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1WX5AK4RE1XEHJSAPYCIZBWDQNRUVGIOCCC</code></pre>
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<p>Though you won’t find some of those strings in <a href="recode.c">recode.c</a> or
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<a href="prog.c">prog.c</a>. Yes the <code>WAR</code> for the Ringstellung (Ring settings) is an
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amusing coincidence <em>but it really did happen!</em></p>
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@@ -207,11 +207,11 @@ encipherment/decipherment). If the file cannot be opened it sets back to stdin.<
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<p><code>-o</code> outputs the settings to the file. If the file cannot be opened for writing
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or is the same file name (see below) then only stdout will be used. Example of
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randomised output going to a file:</p>
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<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">$</span> ./recode <span class="at">-r</span> <span class="at">-oconfig</span></span>
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<span id="cb3-2"><a href="#cb3-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">IOCCC</span></span>
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<span id="cb3-3"><a href="#cb3-3" aria-hidden="true" tabindex="-1"></a> <span class="ex">3PP4UB5GG1ELGTKFCOPVBNUYXJAWSDIOCCC</span></span>
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<span id="cb3-4"><a href="#cb3-4" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> cat config</span>
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<span id="cb3-5"><a href="#cb3-5" aria-hidden="true" tabindex="-1"></a> <span class="ex">3PP4UB5GG1ELGTKFCOPVBNUYXJAWSD$</span></span></code></pre></div>
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<pre class="<!---sh-->"><code> $ ./recode -r -oconfig
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IOCCC
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3PP4UB5GG1ELGTKFCOPVBNUYXJAWSDIOCCC
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$ cat config
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3PP4UB5GG1ELGTKFCOPVBNUYXJAWSD$</code></pre>
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<p>Notice that a terminating newline isn’t added. Also note that it outputs to
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stdout so you can pipe it to the Enigma machine but at the same time have the
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settings saved for deciphering the text later (the configuration does not have
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@@ -236,7 +236,7 @@ what about if one exists but the other does not?</p>
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<h2 id="file-options-parser-limitation"><a name="fileoptions" href="#toc">File options parser limitation</a></h2>
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<p>Due to the way the parsing of options is done (no spaces between option char and
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argument) shell expansion will not work right so for example doing:</p>
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<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> ./recode <span class="at">-R~</span>/config</span></code></pre></div>
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<pre class="<!---sh-->"><code> $ ./recode -R~/config</code></pre>
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<p>will <em>not</em> read the file ‘config’ in the home directory. I show another way to
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achieve this later.</p>
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<p>This limitation also applies to the <code>-f</code> and <code>-o</code> options!</p>
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@@ -246,17 +246,17 @@ the program interactively.</p>
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<h1 id="piping-commands-to-recode"><a name="pipingtorecode" href="#toc">Piping commands to recode</a></h1>
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<p>If stdin is not a tty (<code>!isatty(0)</code>) and neither randomised mode nor reading in
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from a file is specified then you might just see something like:</p>
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<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">$</span> echo testing test tests <span class="kw">|</span> <span class="ex">./recode</span></span>
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<span id="cb5-2"><a href="#cb5-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">1AB2BB3CC1testing</span> test tests</span>
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<span id="cb5-3"><a href="#cb5-3" aria-hidden="true" tabindex="-1"></a></span>
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<span id="cb5-4"><a href="#cb5-4" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> echo testing test tests <span class="kw">|</span> <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">></span>/dev/null</span>
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<span id="cb5-5"><a href="#cb5-5" aria-hidden="true" tabindex="-1"></a> <span class="ex">mfrwxan</span> lzng ofnlu</span>
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<span id="cb5-6"><a href="#cb5-6" aria-hidden="true" tabindex="-1"></a></span>
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<span id="cb5-7"><a href="#cb5-7" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> echo testing test tests <span class="kw">|</span> <span class="ex">./recode</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">></span>/dev/null <span class="kw">|</span> <span class="ex">./recode</span></span>
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<span id="cb5-8"><a href="#cb5-8" aria-hidden="true" tabindex="-1"></a> <span class="ex">1AB2BB3CC1mfrwxan</span> lzng ofnlu</span>
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<span id="cb5-9"><a href="#cb5-9" aria-hidden="true" tabindex="-1"></a></span>
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<span id="cb5-10"><a href="#cb5-10" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> echo testing test tests <span class="kw">|</span> <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">></span>/dev/null <span class="kw">|</span> <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">></span>/dev/null</span>
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<span id="cb5-11"><a href="#cb5-11" aria-hidden="true" tabindex="-1"></a> <span class="ex">testing</span> test tests</span></code></pre></div>
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<pre class="<!---sh-->"><code> $ echo testing test tests | ./recode
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1AB2BB3CC1testing test tests
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$ echo testing test tests | ./recode | ./prog - 2>/dev/null
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mfrwxan lzng ofnlu
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$ echo testing test tests | ./recode | ./prog - 2>/dev/null | ./recode
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1AB2BB3CC1mfrwxan lzng ofnlu
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$ echo testing test tests | ./recode | ./prog - 2>/dev/null | ./recode | ./prog - 2>/dev/null
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testing test tests</code></pre>
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<p>In other words just the defaults. This was to simplify the problems with
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prompting again for input if it’s invalid (though as you’ll see it does a good
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job at this anyway).</p>
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@@ -265,59 +265,59 @@ job at this anyway).</p>
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input manually (if you randomise or read in from previously saved file no input
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need be done at all) then make sure to redirect stderr to /dev/null. If you
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don’t you might see something like:</p>
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<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">$</span> ./recode <span class="at">-r</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span></span>
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<span id="cb6-2"><a href="#cb6-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">Ring</span> 1: IOCCC</span>
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<span id="cb6-3"><a href="#cb6-3" aria-hidden="true" tabindex="-1"></a> <span class="ex">Setting</span> 1: Position 1: Ring 2: Setting 2: Position 2: Ring 3: Setting 3: Position 3: Reflector: Plugboard pair 1: Plugboard pair 2: Plugboard pair 3: Plugboard pair 4: Plugboard pair 5: Plugboard pair 6: Plugboard pair 7: Plugboard pair 8: Plugboard pair 9: Plugboard pair 10: DEVIY</span></code></pre></div>
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<pre class="<!---sh-->"><code> $ ./recode -r | ./prog -
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Ring 1: IOCCC
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Setting 1: Position 1: Ring 2: Setting 2: Position 2: Ring 3: Setting 3: Position 3: Reflector: Plugboard pair 1: Plugboard pair 2: Plugboard pair 3: Plugboard pair 4: Plugboard pair 5: Plugboard pair 6: Plugboard pair 7: Plugboard pair 8: Plugboard pair 9: Plugboard pair 10: DEVIY</code></pre>
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<p>What happened is that <code>Ring 1:</code> is printed to stderr but since it’s not been
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redirected to <code>/dev/null</code> it prints this out; at this point however it prompts for
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input. Why or how it shows the first prompt instead of later on I do not know.
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Anyway at this point the simulator is already expecting input to en/decipher.
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That’s why after I sent EOF it printed out the remaining strings to stderr.</p>
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<h1 id="manually-test-the-recode-program-with-the-enigma-program"><a name="manuallytest" href="#toc">Manually test the recode program with the Enigma program</a></h1>
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<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">$</span> cat input</span>
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<span id="cb7-2"><a href="#cb7-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">IOCCC</span></span>
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<span id="cb7-3"><a href="#cb7-3" aria-hidden="true" tabindex="-1"></a></span>
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<span id="cb7-4"><a href="#cb7-4" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> ./recode <span class="at">-finput</span></span>
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<span id="cb7-5"><a href="#cb7-5" aria-hidden="true" tabindex="-1"></a> <span class="ex">Rotors:</span></span>
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<span id="cb7-6"><a href="#cb7-6" aria-hidden="true" tabindex="-1"></a> <span class="kw">(</span><span class="ex">1</span><span class="kw">)</span> <span class="ex">I:</span> EKMFLGDQVZNTOWYHXUSPAIBRCJ</span>
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<span id="cb7-7"><a href="#cb7-7" aria-hidden="true" tabindex="-1"></a> <span class="kw">(</span><span class="ex">2</span><span class="kw">)</span> <span class="ex">II:</span> AJDKSIRUXBLHWTMCQGZNPYFVOE</span>
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<span id="cb7-8"><a href="#cb7-8" aria-hidden="true" tabindex="-1"></a> <span class="kw">(</span><span class="ex">3</span><span class="kw">)</span> <span class="ex">III:</span> BDFHJLCPRTXVZNYEIWGAKMUSQO</span>
|
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<span id="cb7-9"><a href="#cb7-9" aria-hidden="true" tabindex="-1"></a> <span class="kw">(</span><span class="ex">4</span><span class="kw">)</span> <span class="ex">IV:</span> ESOVPZJAYQUIRHXLNFTGKDCMWB</span>
|
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<span id="cb7-10"><a href="#cb7-10" aria-hidden="true" tabindex="-1"></a> <span class="kw">(</span><span class="ex">5</span><span class="kw">)</span> <span class="ex">V:</span> VZBRGITYUPSDNHLXAWMJQOFECK</span>
|
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<span id="cb7-11"><a href="#cb7-11" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> rotor 1 <span class="er">(</span><span class="ex">1</span> <span class="at">-</span> 5<span class="kw">)</span><span class="bu">:</span> 1</span>
|
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<span id="cb7-12"><a href="#cb7-12" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> rotor 2 <span class="er">(</span><span class="ex">1</span> <span class="at">-</span> 5<span class="kw">)</span><span class="bu">:</span> 2</span>
|
||||
<span id="cb7-13"><a href="#cb7-13" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> rotor 3 <span class="er">(</span><span class="ex">1</span> <span class="at">-</span> 5<span class="kw">)</span><span class="bu">:</span> 3</span>
|
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<span id="cb7-14"><a href="#cb7-14" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> setting 1 <span class="er">(</span><span class="ex">A</span> <span class="at">-</span> Z<span class="kw">)</span><span class="bu">:</span> A</span>
|
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<span id="cb7-15"><a href="#cb7-15" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> setting 2 <span class="er">(</span><span class="ex">A</span> <span class="at">-</span> Z<span class="kw">)</span><span class="bu">:</span> A</span>
|
||||
<span id="cb7-16"><a href="#cb7-16" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> setting 3 <span class="er">(</span><span class="ex">A</span> <span class="at">-</span> Z<span class="kw">)</span><span class="bu">:</span> A</span>
|
||||
<span id="cb7-17"><a href="#cb7-17" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> position 1 <span class="er">(</span><span class="ex">A</span> <span class="at">-</span> Z<span class="kw">)</span><span class="bu">:</span> A</span>
|
||||
<span id="cb7-18"><a href="#cb7-18" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> position 2 <span class="er">(</span><span class="ex">A</span> <span class="at">-</span> Z<span class="kw">)</span><span class="bu">:</span> A</span>
|
||||
<span id="cb7-19"><a href="#cb7-19" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> position 3 <span class="er">(</span><span class="ex">A</span> <span class="at">-</span> Z<span class="kw">)</span><span class="bu">:</span> A</span>
|
||||
<span id="cb7-20"><a href="#cb7-20" aria-hidden="true" tabindex="-1"></a> <span class="ex">Reflector:</span></span>
|
||||
<span id="cb7-21"><a href="#cb7-21" aria-hidden="true" tabindex="-1"></a> <span class="kw">(</span><span class="ex">1</span><span class="kw">)</span> <span class="kw">(</span><span class="ex">B</span><span class="kw">)</span> <span class="ex">YRUHQSLDPXNGOKMIEBFZCWVJAT</span></span>
|
||||
<span id="cb7-22"><a href="#cb7-22" aria-hidden="true" tabindex="-1"></a> <span class="kw">(</span><span class="ex">2</span><span class="kw">)</span> <span class="kw">(</span><span class="ex">C</span><span class="kw">)</span> <span class="ex">FVPJIAOYEDRZXWGCTKUQSBNMHL</span></span>
|
||||
<span id="cb7-23"><a href="#cb7-23" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> reflector <span class="er">(</span><span class="ex">1</span> <span class="at">-</span> 2<span class="kw">)</span><span class="bu">:</span> 2</span>
|
||||
<span id="cb7-24"><a href="#cb7-24" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 1: AB</span>
|
||||
<span id="cb7-25"><a href="#cb7-25" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 2: CD</span>
|
||||
<span id="cb7-26"><a href="#cb7-26" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 3: ..</span>
|
||||
<span id="cb7-27"><a href="#cb7-27" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 4: EF</span>
|
||||
<span id="cb7-28"><a href="#cb7-28" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 5: GH</span>
|
||||
<span id="cb7-29"><a href="#cb7-29" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 6: IJ</span>
|
||||
<span id="cb7-30"><a href="#cb7-30" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 7: KL</span>
|
||||
<span id="cb7-31"><a href="#cb7-31" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 8: MN</span>
|
||||
<span id="cb7-32"><a href="#cb7-32" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 9: OP</span>
|
||||
<span id="cb7-33"><a href="#cb7-33" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 10: QR</span>
|
||||
<span id="cb7-34"><a href="#cb7-34" aria-hidden="true" tabindex="-1"></a> <span class="ex">1AA2AA3AA2ABCD..EFGHIJKLMNOPQRIOCCC</span></span></code></pre></div>
|
||||
<pre class="<!---sh-->"><code> $ cat input
|
||||
IOCCC
|
||||
|
||||
$ ./recode -finput
|
||||
Rotors:
|
||||
(1) I: EKMFLGDQVZNTOWYHXUSPAIBRCJ
|
||||
(2) II: AJDKSIRUXBLHWTMCQGZNPYFVOE
|
||||
(3) III: BDFHJLCPRTXVZNYEIWGAKMUSQO
|
||||
(4) IV: ESOVPZJAYQUIRHXLNFTGKDCMWB
|
||||
(5) V: VZBRGITYUPSDNHLXAWMJQOFECK
|
||||
Input rotor 1 (1 - 5): 1
|
||||
Input rotor 2 (1 - 5): 2
|
||||
Input rotor 3 (1 - 5): 3
|
||||
Input setting 1 (A - Z): A
|
||||
Input setting 2 (A - Z): A
|
||||
Input setting 3 (A - Z): A
|
||||
Input position 1 (A - Z): A
|
||||
Input position 2 (A - Z): A
|
||||
Input position 3 (A - Z): A
|
||||
Reflector:
|
||||
(1) (B) YRUHQSLDPXNGOKMIEBFZCWVJAT
|
||||
(2) (C) FVPJIAOYEDRZXWGCTKUQSBNMHL
|
||||
Input reflector (1 - 2): 2
|
||||
Input plugboard pair 1: AB
|
||||
Input plugboard pair 2: CD
|
||||
Input plugboard pair 3: ..
|
||||
Input plugboard pair 4: EF
|
||||
Input plugboard pair 5: GH
|
||||
Input plugboard pair 6: IJ
|
||||
Input plugboard pair 7: KL
|
||||
Input plugboard pair 8: MN
|
||||
Input plugboard pair 9: OP
|
||||
Input plugboard pair 10: QR
|
||||
1AA2AA3AA2ABCD..EFGHIJKLMNOPQRIOCCC</code></pre>
|
||||
<p>Notice that I skipped a <a href="https://www.cryptomuseum.com/crypto/enigma/i/sb.htm">plugboard
|
||||
pair</a>; this can be done in
|
||||
a number of ways but two dots is one. Notice also that it’s in a different order
|
||||
than the simulator: because with the size restrictions on my entry I saved bytes
|
||||
by using the same loop where I could. It just felt more natural to have them
|
||||
grouped together in a configurator for the <a href="prog.c">simulator</a>.</p>
|
||||
<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="ex">$</span> echo 1AA2AA3AA2ABCD..EFGHIJKLMNOPQRIOCCC <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">></span>/dev/null</span>
|
||||
<span id="cb8-2"><a href="#cb8-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">HQNVO</span></span>
|
||||
<span id="cb8-3"><a href="#cb8-3" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> echo 1AA2AA3AA2ABCD..EFGHIJKLMNOPQRIOCCC <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">></span>/dev/null <span class="kw">|</span> <span class="bu">echo</span> 1AA2AA3AA2ABCD..EFGHIJKLMNOPQRHQNVO <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">></span>/dev/null</span>
|
||||
<span id="cb8-4"><a href="#cb8-4" aria-hidden="true" tabindex="-1"></a> <span class="ex">IOCCC</span></span></code></pre></div>
|
||||
<pre class="<!---sh-->"><code> $ echo 1AA2AA3AA2ABCD..EFGHIJKLMNOPQRIOCCC | ./prog - 2>/dev/null
|
||||
HQNVO
|
||||
$ echo 1AA2AA3AA2ABCD..EFGHIJKLMNOPQRIOCCC | ./prog - 2>/dev/null | echo 1AA2AA3AA2ABCD..EFGHIJKLMNOPQRHQNVO | ./prog - 2>/dev/null
|
||||
IOCCC</code></pre>
|
||||
<p>As you can see the <code>recode</code> program prompts for the settings and outputs the
|
||||
input for the Enigma program. I then copied/pasted that output to the program
|
||||
and got the result <code>HQNVO</code>.</p>
|
||||
@@ -330,58 +330,58 @@ part again; I could have just done the latter part but I wanted to show the way
|
||||
the pipeline works with settings etc.</p>
|
||||
<p>What happens if the plugboard pairs are the same but in a different order? It’s
|
||||
the same output:</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">$</span> echo 1AA2AA3AA2AB..CDEFGHIJKLMNOPQRIOCCC<span class="kw">|</span><span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">></span>/dev/null</span>
|
||||
<span id="cb9-2"><a href="#cb9-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">HQNVO</span></span></code></pre></div>
|
||||
<pre class="<!---sh-->"><code> $ echo 1AA2AA3AA2AB..CDEFGHIJKLMNOPQRIOCCC|./prog - 2>/dev/null
|
||||
HQNVO</code></pre>
|
||||
<p>Also if you flip the order of the letters in the pair e.g. the AB as BA instead:</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> echo 1AA2AA3AA2BA..CDEFGHIJKLMNOPQRIOCCC<span class="kw">|</span><span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">></span>/dev/null</span>
|
||||
<span id="cb10-2"><a href="#cb10-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">HQNVO</span></span></code></pre></div>
|
||||
<pre class="<!---sh-->"><code> $ echo 1AA2AA3AA2BA..CDEFGHIJKLMNOPQRIOCCC|./prog - 2>/dev/null
|
||||
HQNVO</code></pre>
|
||||
<h1 id="only-write-config-file"><a name="onlyconfig" href="#toc">Only write config file</a></h1>
|
||||
<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> ./recode <span class="at">-v</span> <span class="at">-oconfig</span> <span class="at">-finput</span> <span class="op">></span>/dev/null</span>
|
||||
<span id="cb11-2"><a href="#cb11-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">Rotors:</span></span>
|
||||
<span id="cb11-3"><a href="#cb11-3" aria-hidden="true" tabindex="-1"></a> <span class="kw">(</span><span class="ex">1</span><span class="kw">)</span> <span class="ex">I:</span> EKMFLGDQVZNTOWYHXUSPAIBRCJ</span>
|
||||
<span id="cb11-4"><a href="#cb11-4" aria-hidden="true" tabindex="-1"></a> <span class="kw">(</span><span class="ex">2</span><span class="kw">)</span> <span class="ex">II:</span> AJDKSIRUXBLHWTMCQGZNPYFVOE</span>
|
||||
<span id="cb11-5"><a href="#cb11-5" aria-hidden="true" tabindex="-1"></a> <span class="kw">(</span><span class="ex">3</span><span class="kw">)</span> <span class="ex">III:</span> BDFHJLCPRTXVZNYEIWGAKMUSQO</span>
|
||||
<span id="cb11-6"><a href="#cb11-6" aria-hidden="true" tabindex="-1"></a> <span class="kw">(</span><span class="ex">4</span><span class="kw">)</span> <span class="ex">IV:</span> ESOVPZJAYQUIRHXLNFTGKDCMWB</span>
|
||||
<span id="cb11-7"><a href="#cb11-7" aria-hidden="true" tabindex="-1"></a> <span class="kw">(</span><span class="ex">5</span><span class="kw">)</span> <span class="ex">V:</span> VZBRGITYUPSDNHLXAWMJQOFECK</span>
|
||||
<span id="cb11-8"><a href="#cb11-8" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> rotor 1 <span class="er">(</span><span class="ex">1</span> <span class="at">-</span> 5<span class="kw">)</span><span class="bu">:</span> 1</span>
|
||||
<span id="cb11-9"><a href="#cb11-9" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> rotor 2 <span class="er">(</span><span class="ex">1</span> <span class="at">-</span> 5<span class="kw">)</span><span class="bu">:</span> 2</span>
|
||||
<span id="cb11-10"><a href="#cb11-10" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> rotor 3 <span class="er">(</span><span class="ex">1</span> <span class="at">-</span> 5<span class="kw">)</span><span class="bu">:</span> 3</span>
|
||||
<span id="cb11-11"><a href="#cb11-11" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> setting 1 <span class="er">(</span><span class="ex">A</span> <span class="at">-</span> Z<span class="kw">)</span><span class="bu">:</span> A</span>
|
||||
<span id="cb11-12"><a href="#cb11-12" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> setting 2 <span class="er">(</span><span class="ex">A</span> <span class="at">-</span> Z<span class="kw">)</span><span class="bu">:</span> C</span>
|
||||
<span id="cb11-13"><a href="#cb11-13" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> setting 3 <span class="er">(</span><span class="ex">A</span> <span class="at">-</span> Z<span class="kw">)</span><span class="bu">:</span> E</span>
|
||||
<span id="cb11-14"><a href="#cb11-14" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> position 1 <span class="er">(</span><span class="ex">A</span> <span class="at">-</span> Z<span class="kw">)</span><span class="bu">:</span> B</span>
|
||||
<span id="cb11-15"><a href="#cb11-15" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> position 2 <span class="er">(</span><span class="ex">A</span> <span class="at">-</span> Z<span class="kw">)</span><span class="bu">:</span> D</span>
|
||||
<span id="cb11-16"><a href="#cb11-16" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> position 3 <span class="er">(</span><span class="ex">A</span> <span class="at">-</span> Z<span class="kw">)</span><span class="bu">:</span> F</span>
|
||||
<span id="cb11-17"><a href="#cb11-17" aria-hidden="true" tabindex="-1"></a> <span class="ex">Reflector:</span></span>
|
||||
<span id="cb11-18"><a href="#cb11-18" aria-hidden="true" tabindex="-1"></a> <span class="kw">(</span><span class="ex">1</span><span class="kw">)</span> <span class="kw">(</span><span class="ex">B</span><span class="kw">)</span> <span class="ex">YRUHQSLDPXNGOKMIEBFZCWVJAT</span></span>
|
||||
<span id="cb11-19"><a href="#cb11-19" aria-hidden="true" tabindex="-1"></a> <span class="kw">(</span><span class="ex">2</span><span class="kw">)</span> <span class="kw">(</span><span class="ex">C</span><span class="kw">)</span> <span class="ex">FVPJIAOYEDRZXWGCTKUQSBNMHL</span></span>
|
||||
<span id="cb11-20"><a href="#cb11-20" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> reflector <span class="er">(</span><span class="ex">1</span> <span class="at">-</span> 2<span class="kw">)</span><span class="bu">:</span> 2</span>
|
||||
<span id="cb11-21"><a href="#cb11-21" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 1: AB</span>
|
||||
<span id="cb11-22"><a href="#cb11-22" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 2: CD</span>
|
||||
<span id="cb11-23"><a href="#cb11-23" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 3: EF</span>
|
||||
<span id="cb11-24"><a href="#cb11-24" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 4: GHIJ</span>
|
||||
<span id="cb11-25"><a href="#cb11-25" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 5: IJ</span>
|
||||
<span id="cb11-26"><a href="#cb11-26" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 6: KL</span>
|
||||
<span id="cb11-27"><a href="#cb11-27" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 7: MN</span>
|
||||
<span id="cb11-28"><a href="#cb11-28" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 8: OP</span>
|
||||
<span id="cb11-29"><a href="#cb11-29" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 9: QR</span>
|
||||
<span id="cb11-30"><a href="#cb11-30" aria-hidden="true" tabindex="-1"></a> <span class="ex">Input</span> plugboard pair 10: ST</span>
|
||||
<span id="cb11-31"><a href="#cb11-31" aria-hidden="true" tabindex="-1"></a> <span class="ex">Ring</span> 1: <span class="er">(</span> <span class="ex">I</span><span class="kw">)</span> <span class="ex">EKMFLGDQVZNTOWYHXUSPAIBRCJ</span></span>
|
||||
<span id="cb11-32"><a href="#cb11-32" aria-hidden="true" tabindex="-1"></a> <span class="ex">Ring</span> 2: <span class="er">(</span> <span class="ex">II</span><span class="kw">)</span> <span class="ex">AJDKSIRUXBLHWTMCQGZNPYFVOE</span></span>
|
||||
<span id="cb11-33"><a href="#cb11-33" aria-hidden="true" tabindex="-1"></a> <span class="ex">Ring</span> 3: <span class="er">(</span><span class="ex">III</span><span class="kw">)</span> <span class="ex">BDFHJLCPRTXVZNYEIWGAKMUSQO</span></span>
|
||||
<span id="cb11-34"><a href="#cb11-34" aria-hidden="true" tabindex="-1"></a> <span class="ex">Ring</span> settings: ACE</span>
|
||||
<span id="cb11-35"><a href="#cb11-35" aria-hidden="true" tabindex="-1"></a> <span class="ex">Ring</span> positions: BDF</span>
|
||||
<span id="cb11-36"><a href="#cb11-36" aria-hidden="true" tabindex="-1"></a> <span class="ex">Reflector:</span> <span class="er">(</span><span class="ex">C</span><span class="kw">)</span> <span class="ex">FVPJIAOYEDRZXWGCTKUQSBNMHL</span></span>
|
||||
<span id="cb11-37"><a href="#cb11-37" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#01: AB</span></span>
|
||||
<span id="cb11-38"><a href="#cb11-38" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#02: CD</span></span>
|
||||
<span id="cb11-39"><a href="#cb11-39" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#03: EF</span></span>
|
||||
<span id="cb11-40"><a href="#cb11-40" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#04: GH</span></span>
|
||||
<span id="cb11-41"><a href="#cb11-41" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#05: IJ</span></span>
|
||||
<span id="cb11-42"><a href="#cb11-42" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#06: KL</span></span>
|
||||
<span id="cb11-43"><a href="#cb11-43" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#07: MN</span></span>
|
||||
<span id="cb11-44"><a href="#cb11-44" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#08: OP</span></span>
|
||||
<span id="cb11-45"><a href="#cb11-45" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#09: QR</span></span>
|
||||
<span id="cb11-46"><a href="#cb11-46" aria-hidden="true" tabindex="-1"></a> <span class="ex">Plugboard</span> pair <span class="co">#10: ST</span></span></code></pre></div>
|
||||
<pre class="<!---sh-->"><code> $ ./recode -v -oconfig -finput >/dev/null
|
||||
Rotors:
|
||||
(1) I: EKMFLGDQVZNTOWYHXUSPAIBRCJ
|
||||
(2) II: AJDKSIRUXBLHWTMCQGZNPYFVOE
|
||||
(3) III: BDFHJLCPRTXVZNYEIWGAKMUSQO
|
||||
(4) IV: ESOVPZJAYQUIRHXLNFTGKDCMWB
|
||||
(5) V: VZBRGITYUPSDNHLXAWMJQOFECK
|
||||
Input rotor 1 (1 - 5): 1
|
||||
Input rotor 2 (1 - 5): 2
|
||||
Input rotor 3 (1 - 5): 3
|
||||
Input setting 1 (A - Z): A
|
||||
Input setting 2 (A - Z): C
|
||||
Input setting 3 (A - Z): E
|
||||
Input position 1 (A - Z): B
|
||||
Input position 2 (A - Z): D
|
||||
Input position 3 (A - Z): F
|
||||
Reflector:
|
||||
(1) (B) YRUHQSLDPXNGOKMIEBFZCWVJAT
|
||||
(2) (C) FVPJIAOYEDRZXWGCTKUQSBNMHL
|
||||
Input reflector (1 - 2): 2
|
||||
Input plugboard pair 1: AB
|
||||
Input plugboard pair 2: CD
|
||||
Input plugboard pair 3: EF
|
||||
Input plugboard pair 4: GHIJ
|
||||
Input plugboard pair 5: IJ
|
||||
Input plugboard pair 6: KL
|
||||
Input plugboard pair 7: MN
|
||||
Input plugboard pair 8: OP
|
||||
Input plugboard pair 9: QR
|
||||
Input plugboard pair 10: ST
|
||||
Ring 1: ( I) EKMFLGDQVZNTOWYHXUSPAIBRCJ
|
||||
Ring 2: ( II) AJDKSIRUXBLHWTMCQGZNPYFVOE
|
||||
Ring 3: (III) BDFHJLCPRTXVZNYEIWGAKMUSQO
|
||||
Ring settings: ACE
|
||||
Ring positions: BDF
|
||||
Reflector: (C) FVPJIAOYEDRZXWGCTKUQSBNMHL
|
||||
Plugboard pair #01: AB
|
||||
Plugboard pair #02: CD
|
||||
Plugboard pair #03: EF
|
||||
Plugboard pair #04: GH
|
||||
Plugboard pair #05: IJ
|
||||
Plugboard pair #06: KL
|
||||
Plugboard pair #07: MN
|
||||
Plugboard pair #08: OP
|
||||
Plugboard pair #09: QR
|
||||
Plugboard pair #10: ST</code></pre>
|
||||
<p>Notice that I redirect stdout to /dev/null so that the config is only written to
|
||||
the file config. But also notice that for <a href="https://www.cryptomuseum.com/crypto/enigma/i/sb.htm">plugboard
|
||||
pair</a> 4 I typed in <code>GHIJ</code>
|
||||
@@ -389,55 +389,55 @@ and it didn’t report an error. Neither did it complain about <code>IJ</code> i
|
||||
pair. This is because it consumes input overflow.</p>
|
||||
<p>It shouldn’t be this way for the simulator though because that could cause
|
||||
inconsistent number of characters expected before the text to encipher.</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">$</span> cat config</span>
|
||||
<span id="cb12-2"><a href="#cb12-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">1AB2CD3EF2ABCDEFGHIJKLMNOPQRST</span></span>
|
||||
<span id="cb12-3"><a href="#cb12-3" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb12-4"><a href="#cb12-4" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> <span class="er">(</span> <span class="fu">cat</span> config <span class="kw">;</span> <span class="fu">cat</span> input <span class="kw">)</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">></span>/dev/null</span>
|
||||
<span id="cb12-5"><a href="#cb12-5" aria-hidden="true" tabindex="-1"></a> <span class="ex">LRAVE</span></span>
|
||||
<span id="cb12-6"><a href="#cb12-6" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb12-7"><a href="#cb12-7" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> <span class="er">(</span> <span class="fu">cat</span> config <span class="kw">;</span> <span class="fu">cat</span> input <span class="kw">)</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">></span>/dev/null <span class="kw">|</span> <span class="kw">(</span> <span class="fu">cat</span> config <span class="kw">;</span> <span class="bu">echo</span> LRAVE <span class="kw">)</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">></span>/dev/null</span>
|
||||
<span id="cb12-8"><a href="#cb12-8" aria-hidden="true" tabindex="-1"></a> <span class="ex">IOCCC</span></span></code></pre></div>
|
||||
<pre class="<!---sh-->"><code> $ cat config
|
||||
1AB2CD3EF2ABCDEFGHIJKLMNOPQRST
|
||||
|
||||
$ ( cat config ; cat input ) | ./prog - 2>/dev/null
|
||||
LRAVE
|
||||
|
||||
$ ( cat config ; cat input ) | ./prog - 2>/dev/null | ( cat config ; echo LRAVE ) | ./prog - 2>/dev/null
|
||||
IOCCC</code></pre>
|
||||
<p>What if you don’t want to worry about having to specify input but just have the
|
||||
settings written? You can do that too by either sending a newline or else
|
||||
directly type ctrl-d (or whatever you have EOF set to) or give it an empty file.</p>
|
||||
<p>The following are all equivalent in that they will write to a settings file (the
|
||||
first one will print a newline with the echo but that won’t matter):</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">$</span> echo <span class="kw">|</span> <span class="ex">./recode</span> <span class="at">-r</span> <span class="at">-osettings</span></span>
|
||||
<span id="cb13-2"><a href="#cb13-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> echo <span class="at">-n</span> <span class="kw">|</span> <span class="ex">./recode</span> <span class="at">-r</span> <span class="at">-osettings</span></span>
|
||||
<span id="cb13-3"><a href="#cb13-3" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> <span class="op">></span> empty</span>
|
||||
<span id="cb13-4"><a href="#cb13-4" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> ./recode <span class="at">-r</span> <span class="at">-osettings</span> <span class="op"><</span> empty</span>
|
||||
<span id="cb13-5"><a href="#cb13-5" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> cat empty <span class="kw">|</span> <span class="ex">./recode</span> <span class="at">-r</span> <span class="at">-osettings</span></span>
|
||||
<span id="cb13-6"><a href="#cb13-6" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> ./recode <span class="at">-r</span> <span class="at">-osettings</span></span>
|
||||
<span id="cb13-7"><a href="#cb13-7" aria-hidden="true" tabindex="-1"></a> <span class="ex">^D</span></span></code></pre></div>
|
||||
<pre class="<!---sh-->"><code> $ echo | ./recode -r -osettings
|
||||
$ echo -n | ./recode -r -osettings
|
||||
$ > empty
|
||||
$ ./recode -r -osettings < empty
|
||||
$ cat empty | ./recode -r -osettings
|
||||
$ ./recode -r -osettings
|
||||
^D</code></pre>
|
||||
<p>(Above ^D was not shown but I typed it.) The way it works: if nothing is read
|
||||
the buffer remains <code>NULL</code> and so I don’t print it but still do print the settings
|
||||
file. (Actually even if <code>getdelim()</code> fails you’re supposed to free the buffer so I
|
||||
set another variable to indicate if it should be printed.)</p>
|
||||
<h1 id="reusing-a-configuration"><a name="reuseconfig" href="#toc">Reusing a configuration</a></h1>
|
||||
<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">$</span> echo <span class="at">-n</span><span class="kw">|</span><span class="ex">./recode</span> <span class="at">-r</span> <span class="at">-oconfig</span></span>
|
||||
<span id="cb14-2"><a href="#cb14-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">4UH5II1RJ1SPIFEJLYGZWRTBHVCAMN$</span></span>
|
||||
<span id="cb14-3"><a href="#cb14-3" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb14-4"><a href="#cb14-4" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> cat input.txt</span>
|
||||
<span id="cb14-5"><a href="#cb14-5" aria-hidden="true" tabindex="-1"></a> <span class="ex">IOCCC</span> 2020 Enigma simulator example text file</span>
|
||||
<span id="cb14-6"><a href="#cb14-6" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb14-7"><a href="#cb14-7" aria-hidden="true" tabindex="-1"></a> <span class="ex">This</span> is a sentence.</span>
|
||||
<span id="cb14-8"><a href="#cb14-8" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb14-9"><a href="#cb14-9" aria-hidden="true" tabindex="-1"></a> <span class="ex">This</span> is another sentence.</span>
|
||||
<span id="cb14-10"><a href="#cb14-10" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb14-11"><a href="#cb14-11" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> <span class="er">(</span> <span class="fu">cat</span> config <span class="kw">;</span> <span class="fu">cat</span> input.txt <span class="kw">)</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">></span>/dev/null <span class="op">></span> output</span>
|
||||
<span id="cb14-12"><a href="#cb14-12" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> cat output</span>
|
||||
<span id="cb14-13"><a href="#cb14-13" aria-hidden="true" tabindex="-1"></a> <span class="ex">AAPRT</span> 2020 Dkemny tpgnjsjai xpovrgl jvgs wxra</span>
|
||||
<span id="cb14-14"><a href="#cb14-14" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb14-15"><a href="#cb14-15" aria-hidden="true" tabindex="-1"></a> <span class="ex">Fytt</span> ly m xyiilaqh.</span>
|
||||
<span id="cb14-16"><a href="#cb14-16" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb14-17"><a href="#cb14-17" aria-hidden="true" tabindex="-1"></a> <span class="ex">Ybbp</span> ox dmuzerm oscwgytb.</span>
|
||||
<span id="cb14-18"><a href="#cb14-18" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> <span class="er">(</span> <span class="fu">cat</span> config <span class="kw">;</span> <span class="fu">cat</span> output <span class="kw">)</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">></span>/dev/null <span class="op">></span> io</span>
|
||||
<span id="cb14-19"><a href="#cb14-19" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> diff io input.txt</span>
|
||||
<span id="cb14-20"><a href="#cb14-20" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span></span></code></pre></div>
|
||||
<pre class="<!---sh-->"><code> $ echo -n|./recode -r -oconfig
|
||||
4UH5II1RJ1SPIFEJLYGZWRTBHVCAMN$
|
||||
|
||||
$ cat input.txt
|
||||
IOCCC 2020 Enigma simulator example text file
|
||||
|
||||
This is a sentence.
|
||||
|
||||
This is another sentence.
|
||||
|
||||
$ ( cat config ; cat input.txt ) | ./prog - 2>/dev/null > output
|
||||
$ cat output
|
||||
AAPRT 2020 Dkemny tpgnjsjai xpovrgl jvgs wxra
|
||||
|
||||
Fytt ly m xyiilaqh.
|
||||
|
||||
Ybbp ox dmuzerm oscwgytb.
|
||||
$ ( cat config ; cat output ) | ./prog - 2>/dev/null > io
|
||||
$ diff io input.txt
|
||||
$</code></pre>
|
||||
<p>Alternatively you can just use the <code>-R</code> and <code>-f</code> options:</p>
|
||||
<div class="sourceCode" id="cb15"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb15-1"><a href="#cb15-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> ./recode <span class="at">-finput.txt</span> <span class="at">-Rconfig</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">></span>/dev/null <span class="op">></span> output2</span>
|
||||
<span id="cb15-2"><a href="#cb15-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> diff output output2</span>
|
||||
<span id="cb15-3"><a href="#cb15-3" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span></span></code></pre></div>
|
||||
<pre class="<!---sh-->"><code> $ ./recode -finput.txt -Rconfig | ./prog - 2>/dev/null > output2
|
||||
$ diff output output2
|
||||
$</code></pre>
|
||||
<h1 id="write-config-file-read-data-file-and-pass-to-enigma-simulator"><a name="passtoenigma" href="#toc">Write config file, read data file and pass to Enigma simulator</a></h1>
|
||||
<pre><code> $ ./recode -finput.txt -oconfig | ./prog - 2>/dev/null > output
|
||||
Rotors:
|
||||
@@ -476,37 +476,37 @@ set another variable to indicate if it should be printed.)</p>
|
||||
Cody?) there’s also a reference to code which I also love (just as all
|
||||
participants of the IOCCC do). Other things there don’t mean anything but what
|
||||
does is the output:</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">$</span> cat output</span>
|
||||
<span id="cb17-2"><a href="#cb17-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">DBFAF</span> 2020 Ittejg ltblwriac uqdfqvr dhqh ghhf</span>
|
||||
<span id="cb17-3"><a href="#cb17-3" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb17-4"><a href="#cb17-4" aria-hidden="true" tabindex="-1"></a> <span class="ex">Jsjy</span> ce v pxdmullo.</span>
|
||||
<span id="cb17-5"><a href="#cb17-5" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb17-6"><a href="#cb17-6" aria-hidden="true" tabindex="-1"></a> <span class="ex">Sara</span> tj rtaayak uxfhjcti.</span>
|
||||
<span id="cb17-7"><a href="#cb17-7" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb17-8"><a href="#cb17-8" aria-hidden="true" tabindex="-1"></a> <span class="ex">$</span> ./recode <span class="at">-Rconfig</span> <span class="at">-foutput</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">></span>/dev/null</span>
|
||||
<span id="cb17-9"><a href="#cb17-9" aria-hidden="true" tabindex="-1"></a> <span class="ex">IOCCC</span> 2020 Enigma simulator example text file</span>
|
||||
<span id="cb17-10"><a href="#cb17-10" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb17-11"><a href="#cb17-11" aria-hidden="true" tabindex="-1"></a> <span class="ex">This</span> is a sentence.</span>
|
||||
<span id="cb17-12"><a href="#cb17-12" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb17-13"><a href="#cb17-13" aria-hidden="true" tabindex="-1"></a> <span class="ex">This</span> is another sentence.</span></code></pre></div>
|
||||
<pre class="<!---sh-->"><code> $ cat output
|
||||
DBFAF 2020 Ittejg ltblwriac uqdfqvr dhqh ghhf
|
||||
|
||||
Jsjy ce v pxdmullo.
|
||||
|
||||
Sara tj rtaayak uxfhjcti.
|
||||
|
||||
$ ./recode -Rconfig -foutput | ./prog - 2>/dev/null
|
||||
IOCCC 2020 Enigma simulator example text file
|
||||
|
||||
This is a sentence.
|
||||
|
||||
This is another sentence.</code></pre>
|
||||
<h1 id="piping-directly-to-the-enigma-code-once-with-randomised-settings-saved"><a name="directlytoenigma" href="#toc">Piping directly to the Enigma code once (with randomised settings, saved)</a></h1>
|
||||
<p>This is like the above only randomised:</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> ./recode <span class="at">-r</span> <span class="at">-oconfig</span><span class="kw">|</span><span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">></span>/dev/null</span>
|
||||
<span id="cb18-2"><a href="#cb18-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">IOCCC</span></span>
|
||||
<span id="cb18-3"><a href="#cb18-3" aria-hidden="true" tabindex="-1"></a> <span class="ex">UGEVP</span></span></code></pre></div>
|
||||
<pre class="<!---sh-->"><code> $ ./recode -r -oconfig|./prog - 2>/dev/null
|
||||
IOCCC
|
||||
UGEVP</code></pre>
|
||||
<p>Note that I typed in <code>IOCCC</code> and sent <code>EOF</code> (ctrl-d); the settings were written to
|
||||
the config file (for deciphering later) and then all of it was piped to the
|
||||
Enigma entry resulting in the line below IOCCC. But let’s verify it worked out
|
||||
okay:</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> cat config</span>
|
||||
<span id="cb19-2"><a href="#cb19-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">2BM4GJ3HK1LNCBXWRMGKSYIAZUTPVJ</span></span></code></pre></div>
|
||||
<pre class="<!---sh-->"><code> $ cat config
|
||||
2BM4GJ3HK1LNCBXWRMGKSYIAZUTPVJ</code></pre>
|
||||
<p>Without having to copy/paste intermediate results:</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> echo IOCCC <span class="kw">|</span> <span class="ex">./recode</span> <span class="at">-Rconfig</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">></span>/dev/null <span class="kw">|</span> <span class="ex">./recode</span> <span class="at">-Rconfig</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">></span>/dev/null</span>
|
||||
<span id="cb20-2"><a href="#cb20-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">IOCCC</span></span></code></pre></div>
|
||||
<pre class="<!---sh-->"><code> $ echo IOCCC | ./recode -Rconfig | ./prog - 2>/dev/null | ./recode -Rconfig | ./prog - 2>/dev/null
|
||||
IOCCC</code></pre>
|
||||
<p>You can also use a string for the <code>-R</code> option. I’ll use command substitution and
|
||||
actual pasting to demonstrate:</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">$</span> echo IOCCC <span class="kw">|</span> <span class="ex">./recode</span> <span class="at">-R</span><span class="va">$(</span><span class="fu">cat</span> config<span class="va">)</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">></span>/dev/null <span class="kw">|</span> <span class="ex">./recode</span> <span class="at">-R2BM4GJ3HK1LNCBXWRMGKSYIAZUTPVJ</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">></span>/dev/null</span>
|
||||
<span id="cb21-2"><a href="#cb21-2" aria-hidden="true" tabindex="-1"></a> <span class="ex">IOCCC</span></span></code></pre></div>
|
||||
<pre class="<!---sh-->"><code> $ echo IOCCC | ./recode -R$(cat config) | ./prog - 2>/dev/null | ./recode -R2BM4GJ3HK1LNCBXWRMGKSYIAZUTPVJ | ./prog - 2>/dev/null
|
||||
IOCCC</code></pre>
|
||||
<h1 id="usage-conclusion"><a name="conclusion" href="#toc">Usage conclusion</a></h1>
|
||||
<p>That should give you an idea of how to use the <code>recode</code> program. I leave it as
|
||||
an exercise to the reader to implement additional features but here are some
|
||||
@@ -585,7 +585,7 @@ think that I would give too much away? :)</p>
|
||||
the key you wish to select is</p>
|
||||
<pre><code> 0EZ4PC1CC0PGTAQSOXWNMDRYKFUZEI</code></pre>
|
||||
<p>you can do:</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">-R0EZ4PC1CC0PGTAQSOXWNMDRYKFUZEI</span> <span class="at">-fencrypted.html</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-</span> <span class="dv">2</span><span class="op">></span>/dev/null <span class="op">></span> decrypted.html</span></code></pre></div>
|
||||
<pre class="<!---sh-->"><code> ./recode -R0EZ4PC1CC0PGTAQSOXWNMDRYKFUZEI -fencrypted.html | ./prog - 2>/dev/null > decrypted.html</code></pre>
|
||||
<p>Then open <code>decrypted.html</code> in your browser.</p>
|
||||
<!--
|
||||
|
||||
|
||||
Reference in new issue
Block a user