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add some humor about the build process to 1993/lmfjyh

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Landon Curt Noll committed 2024-03-20 13:34:02 -07:00
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1993/lmfjyh/README.md
+21 -16
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@@ -6,25 +6,31 @@ If you have gcc < 2.3.3 you can build this entry like:
make all
```
This will create a file called `";main(){puts("Hello World!");}char*C=".c` which
would print `Hello World!` when compiled.
This will try to create a file whose actual filename is literally:
```
";main(){puts("Hello World!");}char*C=".c
```
When that file is compiled, it will greet the world in the
traditional fashion of C.
For an explanation of why and how this works see the author's remarks. The gist
of the entry itself, however, is the file name _itself **is** the code_.
of the entry itself, however, is the file name _itself_ **is** _part of the code_.
NOTE: we delete the temporary file whether or not the compilation succeeds
because it is an unsafe filename and not doing so would cause problems for
anyone running `make`.
NOTE: We delete the temporary file as part of `make all` whether
or not the compilation succeeds. This is a Makefile **feature**
that might **bug** anyone running the make command. :-)
This entry will not compile with gcc < 2.3.3 as it relies on a bug which was
fixed in gcc 2.3.3 which was fixed a very long time ago now. There is an
alternate version for [those of
us](https://www.collinsdictionary.com/dictionary/english/everyone) with gcc >=
2.3.3. See [Alternate code](#alternate-code) section below for more details.
This entry will not compile with gcc version >= 2.3.3 as it relied
on a bug which was later fixed in gcc 2.3.3, and that happened
_a long time ago_ (.. _in a galaxy far, far away_?).
However, there is an another version that will be compiled in the extremely
likely case this fails. This should happen automatically. See [Alternate
code](#alternate-code) below for more details on it.
If `make all` fails to compile, a suggestion of compiling and running
the alternate version is printed. This alternate version is a variant
for [those of us](https://www.collinsdictionary.com/dictionary/english/everyone)
with gcc >= 2.3.3 or using clang. See [Alternate code](#alternate-code)
section below for more details.
### Bugs and (Mis)features:
@@ -51,8 +57,7 @@ If you have gcc < 2.3.3 (i.e. the entry can compile):
This version does what the code did but in a way that will work with modern
compilers. We'd like to say there's something special about it but there isn't.
Nonetheless it will be compiled in case the original entry fails to compile
(which will happen unless you have gcc < 2.3.3.
Nonetheless it will be compiled in case the original entry fails to compile.
### Alternate build:
1993/lmfjyh/index.html
+25 -24
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@@ -142,36 +142,37 @@ Location: <a href="../../location.html#FI">FI</a> - <em>Republic of Finland </em
<h2 id="to-build">To build:</h2>
<p>If you have gcc &lt; 2.3.3 you can build this entry like:</p>
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> all</span></code></pre></div>
<p>This will create a file called <code>";main(){puts("Hello World!");}char*C=".c</code> which
would print <code>Hello World!</code> when compiled.</p>
<p>This will try to create a file whose actual filename is literally:</p>
<pre><code>&quot;;main(){puts(&quot;Hello World!&quot;);}char*C=&quot;.c</code></pre>
<p>When that file is compiled, it will greet the world in the
traditional fashion of C.</p>
<p>For an explanation of why and how this works see the author’s remarks. The gist
of the entry itself, however, is the file name <em>itself <strong>is</strong> the code</em>.</p>
<p>NOTE: we delete the temporary file whether or not the compilation succeeds
because it is an unsafe filename and not doing so would cause problems for
anyone running <code>make</code>.</p>
<p>This entry will not compile with gcc &lt; 2.3.3 as it relies on a bug which was
fixed in gcc 2.3.3 which was fixed a very long time ago now. There is an
alternate version for <a href="https://www.collinsdictionary.com/dictionary/english/everyone">those of
us</a> with gcc &gt;=
2.3.3. See <a href="#alternate-code">Alternate code</a> section below for more details.</p>
<p>However, there is an another version that will be compiled in the extremely
likely case this fails. This should happen automatically. See <a href="#alternate-code">Alternate
code</a> below for more details on it.</p>
of the entry itself, however, is the file name <em>itself</em> <strong>is</strong> <em>part of the code</em>.</p>
<p>NOTE: We delete the temporary file as part of <code>make all</code> whether
or not the compilation succeeds. This is a Makefile <strong>feature</strong>
that might <strong>bug</strong> anyone running the make command. :-)</p>
<p>This entry will not compile with gcc version &gt;= 2.3.3 as it relied
on a bug which was later fixed in gcc 2.3.3, and that happened
<em>a long time ago</em> (.. <em>in a galaxy far, far away</em>?).</p>
<p>If <code>make all</code> fails to compile, a suggestion of compiling and running
the alternate version is printed. This alternate version is a variant
for <a href="https://www.collinsdictionary.com/dictionary/english/everyone">those of us</a>
with gcc &gt;= 2.3.3 or using clang. See <a href="#alternate-code">Alternate code</a>
section below for more details.</p>
<h3 id="bugs-and-misfeatures">Bugs and (Mis)features:</h3>
<p>The current status of this entry is:</p>
<pre><code>STATUS: INABIAF - please **DO NOT** fix</code></pre>
<p>For more detailed information see <a href="../../bugs.html#1993_lmfjyh">1993 lmfjyh bugs</a>.</p>
<h2 id="to-use">To use:</h2>
<p>If you have gcc &lt; 2.3.3 (i.e. the entry can compile):</p>
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./lmfjyh</span></span></code></pre></div>
<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">./lmfjyh</span></span></code></pre></div>
<h2 id="alternate-code">Alternate code:</h2>
<p>This version does what the code did but in a way that will work with modern
compilers. We’d like to say there’s something special about it but there isn’t.
Nonetheless it will be compiled in case the original entry fails to compile
(which will happen unless you have gcc &lt; 2.3.3.</p>
Nonetheless it will be compiled in case the original entry fails to compile.</p>
<h3 id="alternate-build">Alternate build:</h3>
<p>Should you wish to build this version manually:</p>
<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> alt</span></code></pre></div>
<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>
<h3 id="alternate-use">Alternate use:</h3>
<p>Use <code>lmfjyh.alt</code> as you would <code>lmfjyh</code> above. Note that other code could also be
done with the bug that the entry abuses but that would have to be manually
@@ -187,10 +188,10 @@ best with C-source code.</p>
<p>As an example, I have taken a simple “Hello world!” program
that should be familiar to all C-programmers.</p>
<h4 id="listing-1-a-simple-hello-world-program">Listing 1: A simple “Hello World” program</h4>
<div class="sourceCode" id="cb5"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a>main<span class="op">()</span></span>
<span id="cb5-2"><a href="#cb5-2" aria-hidden="true" tabindex="-1"></a><span class="op">{</span></span>
<span id="cb5-3"><a href="#cb5-3" aria-hidden="true" tabindex="-1"></a> puts<span class="op">(</span><span class="st">&quot;Hello World!&quot;</span><span class="op">);</span></span>
<span id="cb5-4"><a href="#cb5-4" aria-hidden="true" tabindex="-1"></a><span class="op">}</span></span></code></pre></div>
<div class="sourceCode" id="cb6"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a>main<span class="op">()</span></span>
<span id="cb6-2"><a href="#cb6-2" aria-hidden="true" tabindex="-1"></a><span class="op">{</span></span>
<span id="cb6-3"><a href="#cb6-3" aria-hidden="true" tabindex="-1"></a> puts<span class="op">(</span><span class="st">&quot;Hello World!&quot;</span><span class="op">);</span></span>
<span id="cb6-4"><a href="#cb6-4" aria-hidden="true" tabindex="-1"></a><span class="op">}</span></span></code></pre></div>
<h3 id="packing-method">Packing method</h3>
<p>Normally a file name is used only to identify the file, but this new
revolutionary method introduces a totally new concept: <strong>THE FILE NAME <em>IS</em> THE
@@ -198,9 +199,9 @@ PROGRAM</strong>. There is no need to waste valuable disk space to store source
The program is embedded in the file name, only a minor portion of it is inside
the file.</p>
<h4 id="listing-2-compressed-hello-world">Listing 2: Compressed “Hello world”</h4>
<div class="sourceCode" id="cb6"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="dt">char</span><span class="op">*</span>_<span class="op">=</span>__FILE__<span class="op">;</span></span></code></pre></div>
<div class="sourceCode" id="cb7"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a><span class="dt">char</span><span class="op">*</span>_<span class="op">=</span>__FILE__<span class="op">;</span></span></code></pre></div>
<h4 id="listing-3-code-embedded-in-the-file-name">Listing 3: Code embedded in the file name</h4>
<div class="sourceCode" id="cb7"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a><span class="st">&quot;;main(){puts(&quot;</span>Hello World<span class="op">!</span><span class="st">&quot;);}char*C=&quot;</span><span class="op">.</span>c</span></code></pre></div>
<div class="sourceCode" id="cb8"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb8-1"><a href="#cb8-1" aria-hidden="true" tabindex="-1"></a><span class="st">&quot;;main(){puts(&quot;</span>Hello World<span class="op">!</span><span class="st">&quot;);}char*C=&quot;</span><span class="op">.</span>c</span></code></pre></div>
<p>The sample program in listing 1 is 36 bytes long. By using the new
compression method, the example program may be squeezed to sixteen
bytes. In the example the compression ratio is 2:1. It is evident