Files
Landon Curt Noll a1c86c8a7a add original C links to entry navigation bars
The navigation bar for a winning entry now has a "_Original C_" link
(between the ✅ and the Inventory on the right hand side) so that one
may easily view the original C code that was submitted for IOCCC judging.

Ran `make www timestamp` to perform the above.
2025-08-10 12:46:23 -07:00

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<h1>The International Obfuscated C Code Contest</h1>
<h2>1995/esde - Interesting algorithm</h2>
<h3>Searches for words in a file which have the same Soundex code</h3>
</div>
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<div class="navbar">
<a class="Left" href="../dodsond2/index.html">&larr; 1995/dodsond2</a>
<a class="Left" href="../index.html">&uarr; 1995 &uarr;</a>
<a class="Left" href="../garry/index.html">1995/garry &rarr;</a>
<a class="Right" href="https://github.com/ioccc-src/winner/blob/master/1995/esde/esde.c">C code</a>
<a class="Right" href="https://github.com/ioccc-src/winner/blob/master/1995/esde/Makefile">Makefile</a>
<a class="Right" href="#inventory">Inventory</a>
<a class="Right" href="https://github.com/ioccc-src/winner/blob/master/1995/esde/esde.orig.c">Original C</a>
<a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F1995%2Fesde%2Findex.html">&#x2713;</a>
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<h2 id="author">Author:</h2>
<ul>
<li>Name: <a href="../../authors.html#Sebastian_Deorowicz">Sebastian Deorowicz</a><br>
Location: <a href="../../location.html#PL">PL</a> - <em>Republic of Poland</em> (<em>Poland</em>)</li>
</ul>
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<h2 id="to-build">To build:</h2>
<pre><code> make all</code></pre>
<h2 id="to-use">To use:</h2>
<pre><code> ./esde data-file word</code></pre>
<p>where <code>data-file</code> contains lines of &lt; 255 chars in length.</p>
<h2 id="try">Try:</h2>
<pre><code> ./try.sh</code></pre>
<h2 id="judges-remarks">Judges’ remarks:</h2>
<p>When reading the source be careful to distinguish between variable
names and library functions.</p>
<p>If you still don’t know what it does, try
<a href="https://en.wikipedia.org/wiki/Soundex">https://en.wikipedia.org/wiki/Soundex</a>.</p>
<h2 id="authors-remarks">Author’s remarks:</h2>
<h3 id="what-this-program-does">what this program does</h3>
<p>This program searches in the file words which have the same Soundex code
of the given word, and print out lines with those words.</p>
<p>The Soundex code is used to find similar sounding words.</p>
<p>Soundex code begins with the first letter of the word followed by a
three-digit code. This is the algorithm:</p>
<ol start="0" type="1">
<li>Every letter in the word beyond the first letter is replaced by a digit.</li>
<li>Replace all pairs of the same code by single code (e.g. <code>R011235</code> -&gt; <code>R01235</code>).</li>
<li>Remove all zeroes (e.g. <code>R01235</code> -&gt; <code>R1235</code>).</li>
<li>If length of code is &gt; 4, get only first 4 characters (e.g. <code>R1235</code> -&gt; <code>R123</code>).</li>
<li>If length of code is &lt; 4, add zeros (e.g. <code>T12</code> -&gt; <code>T120</code>).</li>
</ol>
<p>These are the codes:</p>
<pre><code> 0 = A, E, H, I, O, U, W, Y
1 = B, P, F, V
2 = C, S, G, J, K, Q, X, Z
3 = D, T
4 = L
5 = M, N
6 = R</code></pre>
<h3 id="information-about-an-info-file">information about an info file:</h3>
<p>An info file should be a text file consisting of lines of text (max. 256 bytes
in each line).</p>
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<div id="inventory">
<h1 id="inventory-for-1995esde">Inventory for 1995/esde</h1>
</div>
<h2 id="primary-files">Primary files</h2>
<ul>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1995/esde/esde.c">esde.c</a> - entry source code</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1995/esde/Makefile">Makefile</a> - entry Makefile</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1995/esde/esde.orig.c">esde.orig.c</a> - original source code</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1995/esde/esde.data2">esde.data2</a> - example input file</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1995/esde/esde.data">esde.data</a> - example input file</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1995/esde/try.sh">try.sh</a> - script to try entry</li>
</ul>
<h2 id="secondary-files">Secondary files</h2>
<ul>
<li><a href="1995_esde.tar.bz2">1995_esde.tar.bz2</a> - download entry tarball</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1995/esde/README.md">README.md</a> - markdown source for this web page</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1995/esde/.entry.json">.entry.json</a> - entry summary and manifest in JSON</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1995/esde/.gitignore">.gitignore</a> - list of files that should not be committed under git</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1995/esde/.path">.path</a> - directory path from top level directory</li>
<li><a href="index.html">index.html</a> - this web page</li>
</ul>
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<div id="coda"><h3>Coda</h3>
<p>
<a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F1995%2Fesde%2Findex.html" rel="nofollow">Nu HTML check this web page</a><br>
<a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a><br>
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