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="&lt;!---c--&gt;"><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.

1985/applin/README.md

@@ -1,13 +1,13 @@
 ## To build:
 
-```sh
+```<!---sh-->
     make all
 ```
 
 
 ## Try:
 
-```sh
+```<!---sh-->
     ./applin
 ```
 

1985/applin/index.html

@@ -144,9 +144,9 @@ 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> all</span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    make all</code></pre>
 <h2 id="try">Try:</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">./applin</span></span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    ./applin</code></pre>
 <h2 id="judges-remarks">Judges’ remarks:</h2>
 <p>One liner programs are short but twisted. This “Hello, world!” version
 certainly takes its time saying hello.</p>

1985/august/README.md

@@ -1,20 +1,20 @@
 ## To build:
 
-```sh
+```<!---sh-->
     make all
 ```
 
 
 ## To use:
 
-```sh
+```<!---sh-->
     ./august
 ```
 
 
 ## Try:
 
-```sh
+```<!---sh-->
     ./try.sh
 ```
 
@@ -22,7 +22,7 @@ If you have the `primes(6)` tool (sometimes part of [BSD
 Games](https://github.com/vattam/BSDGames)) you can see
 what of the output in the first `N` (say `15` or `25`) lines are primes:
 
-```sh
+```<!---sh-->
     ./primes.sh # 15
     ./primes.sh 25
 ```

1985/august/index.html

@@ -141,16 +141,16 @@ Location: <a href="../../location.html#SE">SE</a> - <em>Kingdom of Sweden</em> (
 <!-- 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> all</span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    make all</code></pre>
 <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">./august</span></span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    ./august</code></pre>
 <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>
+<pre class="&lt;!---sh--&gt;"><code>    ./try.sh</code></pre>
 <p>If you have the <code>primes(6)</code> tool (sometimes part of <a href="https://github.com/vattam/BSDGames">BSD
 Games</a>) you can see
 what of the output in the first <code>N</code> (say <code>15</code> or <code>25</code>) lines are primes:</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="ex">./primes.sh</span> <span class="co"># 15</span></span>
-<span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a>    <span class="ex">./primes.sh</span> 25</span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    ./primes.sh # 15
+    ./primes.sh 25</code></pre>
 <p>Note that <code>try.sh</code> will run this script anyway, telling you where to get
 <code>primes(6)</code> if you don’t have it installed, but it will only run with the
 default value of 15, rather than trying several different values.</p>

1985/lycklama/README.md

@@ -1,13 +1,13 @@
 ## To build:
 
-```sh
+```<!---sh-->
     make alt
 ```
 
 
 ## To use:
 
-```sh
+```<!---sh-->
     ./lycklama.alt < some_file
 ```
 
@@ -24,13 +24,13 @@ call with a configurable time to sleep. The default is 500 microseconds but you
 reconfigure it like:
 
 
-```sh
+```<!---sh-->
     make SLEEP=700 clobber alt
 ```
 
 which would set it at 700. Then, whether you use the default value or not, try:
 
-```sh
+```<!---sh-->
     ./try.alt.sh
 ```
 
@@ -45,21 +45,21 @@ modern systems.
 
 ### Original build:
 
-```sh
+```<!---sh-->
     make all
 ```
 
 
 ### Original use:
 
-```sh
+```<!---sh-->
     ./lycklama < some_file
 ```
 
 
 ### Original try:
 
-```sh
+```<!---sh-->
     ./lycklama < lycklama.c
     ./lycklama < lycklama.alt.c
     ./lycklama < lycklama.orig.c

1985/lycklama/index.html

@@ -141,9 +141,9 @@ Location: <a href="../../location.html#ZZ">ZZ</a> - <em>Unknown location</em></l
 <!-- 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> alt</span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    make alt</code></pre>
 <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">./lycklama.alt</span> <span class="op">&lt;</span> some_file</span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    ./lycklama.alt &lt; some_file</code></pre>
 <p>To see why we recommend the alternate version instead of the original version,
 see below and the <a href="#original-code">Original code</a> section.</p>
 <h2 id="try">Try:</h2>
@@ -152,23 +152,23 @@ original, slows down the output so that you can see what it looked like back in
 This will be more enjoyable. It is slowed down by the <code>usleep(3)</code> library
 call with a configurable time to sleep. The default is 500 microseconds but you can
 reconfigure it like:</p>
-<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a>    <span class="fu">make</span> SLEEP=700 clobber alt</span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    make SLEEP=700 clobber alt</code></pre>
 <p>which would set it at 700. Then, whether you use the default value or not, try:</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="ex">./try.alt.sh</span></span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    ./try.alt.sh</code></pre>
 <h2 id="original-code">Original code:</h2>
 <p>As explained above, because modern systems run this entry way too fast to fully
 appreciate what it does, we encourage you to first try the alternate version.
 After this, however, you might wish to try the original version, fixed for
 modern systems.</p>
 <h3 id="original-build">Original build:</h3>
-<div class="sourceCode" id="cb5"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a>    <span class="fu">make</span> all</span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    make all</code></pre>
 <h3 id="original-use">Original use:</h3>
-<div class="sourceCode" id="cb6"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a>    <span class="ex">./lycklama</span> <span class="op">&lt;</span> some_file</span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    ./lycklama &lt; some_file</code></pre>
 <h3 id="original-try">Original try:</h3>
-<div class="sourceCode" id="cb7"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a>    <span class="ex">./lycklama</span> <span class="op">&lt;</span> lycklama.c</span>
-<span id="cb7-2"><a href="#cb7-2" aria-hidden="true" tabindex="-1"></a>    <span class="ex">./lycklama</span> <span class="op">&lt;</span> lycklama.alt.c</span>
-<span id="cb7-3"><a href="#cb7-3" aria-hidden="true" tabindex="-1"></a>    <span class="ex">./lycklama</span> <span class="op">&lt;</span> lycklama.orig.c</span>
-<span id="cb7-4"><a href="#cb7-4" aria-hidden="true" tabindex="-1"></a>    <span class="ex">./lycklama</span> <span class="op">&lt;</span> Makefile</span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    ./lycklama &lt; lycklama.c
+    ./lycklama &lt; lycklama.alt.c
+    ./lycklama &lt; lycklama.orig.c
+    ./lycklama &lt; Makefile</code></pre>
 <h2 id="judges-remarks">Judges’ remarks:</h2>
 <p>Run the program, redirecting a file into it, and notice how it redisplays it.
 The program itself looks like tty noise.</p>

1985/shapiro/README.md

@@ -1,6 +1,6 @@
 ## To build:
 
-```sh
+```<!---sh-->
     make all
 ```
 
@@ -10,7 +10,7 @@ There is alternate code which allows one to change the size of the maze. See
 
 ### To run:
 
-```sh
+```<!---sh-->
     ./shapiro
 ```
 
@@ -23,7 +23,7 @@ of the maze. The alt code allows one to easily do this.
 
 ### Alternate build:
 
-```sh
+```<!---sh-->
     make alt
 ```
 
@@ -32,7 +32,7 @@ of the maze. The alt code allows one to easily do this.
 
 If you wish to change the value you can do it like:
 
-```sh
+```<!---sh-->
     make clobber SIZE=5 alt
 ```
 
@@ -41,7 +41,7 @@ error. If it's <= 0 || >= 5000 then it is set to 39, the default.
 
 You might also wish to try:
 
-```sh
+```<!---sh-->
     ./try.alt.sh
 ```
 

1985/shapiro/index.html

@@ -141,23 +141,23 @@ 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> all</span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    make all</code></pre>
 <p>There is alternate code which allows one to change the size of the maze. See
 <a href="#alternate-code">Alternate code</a> below.</p>
 <h3 id="to-run">To run:</h3>
-<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">./shapiro</span></span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    ./shapiro</code></pre>
 <h2 id="alternate-code">Alternate code:</h2>
 <p>The code has a define <code>C</code> set to 39 but this can be modified to change the size
 of the maze. The alt code allows one to easily do this.</p>
 <h3 id="alternate-build">Alternate build:</h3>
-<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a>    <span class="fu">make</span> alt</span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    make alt</code></pre>
 <h3 id="alternate-try">Alternate try:</h3>
 <p>If you wish to change the value you can do it like:</p>
-<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a>    <span class="fu">make</span> clobber SIZE=5 alt</span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    make clobber SIZE=5 alt</code></pre>
 <p>Note that if it is not a number then obviously there will be a compilation
 error. If it’s &lt;= 0 || &gt;= 5000 then it is set to 39, the default.</p>
 <p>You might also wish to try:</p>
-<div class="sourceCode" id="cb5"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a>    <span class="ex">./try.alt.sh</span></span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    ./try.alt.sh</code></pre>
 <p>This script will compile the program five times with a random value and then
 prompt you in an infinite loop for values to try, exiting only if non-digits are
 in the input.</p>

1985/sicherman/README.md

@@ -1,6 +1,6 @@
 ## To build:
 
-```sh
+```<!---sh-->
     make all
 ```
 
@@ -11,7 +11,7 @@ more details on it.
 
 ## To use:
 
-```sh
+```<!---sh-->
     ./sicherman < file
 
     echo foo | ./sicherman
@@ -23,7 +23,7 @@ more details on it.
 
 ## Try:
 
-```sh
+```<!---sh-->
     ./try.sh
 ```
 
@@ -43,7 +43,7 @@ audience.
 Although this will be built if the original fails to compile you can do it
 manually like:
 
-```sh
+```<!---sh-->
     make alt
 ```
 
@@ -52,14 +52,14 @@ In this case it will be built as `sicherman.alt`.
 
 ### Alternate use:
 
-```sh
+```<!---sh-->
     ./sicherman.alt < file
 ```
 
 
 ### Alternate try:
 
-```sh
+```<!---sh-->
     ./try.alt.sh
 ```
 
@@ -80,7 +80,7 @@ on a line.  Now enter the letters 'n' through 'z'.  But to borrow a quote
 from Richard Stallman: If you think you understand what this code
 does, then you don't, so read it again!  Explain why:
 
-```sh
+```<!---sh-->
     ./sicherman < sicherman.c | ./sicherman | diff - ./sicherman.c
 ```
 

1985/sicherman/index.html

@@ -141,19 +141,19 @@ 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> all</span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    make all</code></pre>
 <p>There is another version that will be compiled in case the first fails. This
 should happen automatically. See <a href="#alternate-code">Alternate code</a> below for
 more details on it.</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">./sicherman</span> <span class="op">&lt;</span> file</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="bu">echo</span> foo <span class="kw">|</span> <span class="ex">./sicherman</span></span>
-<span id="cb2-4"><a href="#cb2-4" aria-hidden="true" tabindex="-1"></a></span>
-<span id="cb2-5"><a href="#cb2-5" aria-hidden="true" tabindex="-1"></a>    <span class="ex">./sicherman</span></span>
-<span id="cb2-6"><a href="#cb2-6" aria-hidden="true" tabindex="-1"></a>    <span class="co"># type or paste some text, making sure to hit enter after each line typed</span></span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    ./sicherman &lt; file
+
+    echo foo | ./sicherman
+
+    ./sicherman
+    # type or paste some text, making sure to hit enter after each line typed</code></pre>
 <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>
+<pre class="&lt;!---sh--&gt;"><code>    ./try.sh</code></pre>
 <h2 id="alternate-code">Alternate code:</h2>
 <p>The <a href="sicherman.alt.c">sicherman.alt.c</a> is a slight change in the fixed version
 (fixed so it does not require <code>-traditional-cpp</code>) in that it has two args to
@@ -164,12 +164,12 @@ audience.</p>
 <h3 id="alternate-build">Alternate build:</h3>
 <p>Although this will be built if the original fails to compile you can do it
 manually like:</p>
-<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a>    <span class="fu">make</span> alt</span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    make alt</code></pre>
 <p>In this case it will be built as <code>sicherman.alt</code>.</p>
 <h3 id="alternate-use">Alternate use:</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="ex">./sicherman.alt</span> <span class="op">&lt;</span> file</span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    ./sicherman.alt &lt; file</code></pre>
 <h3 id="alternate-try">Alternate try:</h3>
-<div class="sourceCode" id="cb6"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a>    <span class="ex">./try.alt.sh</span></span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    ./try.alt.sh</code></pre>
 <h2 id="judges-remarks">Judges’ remarks:</h2>
 <p>This program abuses the C preprocessor so much that some <code>cpp</code>s fail to strip
 out all of the comments on the first pass! If you were able to understand
@@ -182,7 +182,7 @@ Like the program says, what’s that mean?</p>
 on a line. Now enter the letters ‘n’ through ‘z’. But to borrow a quote
 from Richard Stallman: If you think you understand what this code
 does, then you don’t, so read it again! Explain why:</p>
-<div class="sourceCode" id="cb7"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a>    <span class="ex">./sicherman</span> <span class="op">&lt;</span> sicherman.c <span class="kw">|</span> <span class="ex">./sicherman</span> <span class="kw">|</span> <span class="fu">diff</span> <span class="at">-</span> ./sicherman.c</span></code></pre></div>
+<pre class="&lt;!---sh--&gt;"><code>    ./sicherman &lt; sicherman.c | ./sicherman | diff - ./sicherman.c</code></pre>
 <p>results in diff reporting a difference on some machines.</p>
 <h2 id="authors-remarks">Author’s remarks:</h2>
 <p>No remarks were provided by the author.</p>