force use of pandoc version >= 3.1.12.2
The `bin/pandoc-wrapper.sh` tool will verify that the ssytem has a recent enough version of `pandoc(1)`. We explain why we insist on `pandoc(1)`. version >= 3.1.12.2 in comments where the $PANDOC_MIN_VERSION is set. Added `--wrap=preserve` as a default argument to `pandoc(1)`. While this change will impact every HTML file generated, we believe this will improve the ability of someone to look at the generated HTML and correlate with the original markdown. Changed `bin/pandoc-wrapper.sh` VERSION from "1.4.2 2024-03-17" to "1.4.3 2024-03-18". Performed `make www` to achieve all of the above and to generate HTML using the new `--wrap=preserve` `pandoc(1)` mode.
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@@ -130,8 +130,8 @@
|
||||
<h2 id="author"><a name="author"></a>Author:</h2>
|
||||
<ul>
|
||||
<li>Name: <a href="../../authors.html#Dave_Burton">Dave Burton</a><br>
|
||||
Location: <a href="../../location.html#US">US</a> - <em>United States of
|
||||
America</em> (<em>United States</em>) <br><br></li>
|
||||
Location: <a href="../../location.html#US">US</a> - <em>United States of America</em> (<em>United States</em>)
|
||||
<br><br></li>
|
||||
</ul>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/output-index-author.sh -->
|
||||
@@ -148,12 +148,11 @@ America</em> (<em>United States</em>) <br><br></li>
|
||||
<p>If you get really stuck, 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="fu">man</span> ./tac.1</span></code></pre></div>
|
||||
<h2 id="judges-remarks">Judges’ remarks:</h2>
|
||||
<p>They say size isn’t everything, and in the case of IOCCC <a
|
||||
href="../../2018/iocccsize.c">iocccsize.c</a> that is saying something!
|
||||
<p>They say size isn’t everything, and in the case of IOCCC
|
||||
<a href="../../2018/iocccsize.c">iocccsize.c</a> that is saying something!
|
||||
What is this program weighing and how much does it weigh?</p>
|
||||
<h2 id="authors-remarks">Author’s remarks:</h2>
|
||||
<h3 id="tac---tokenize-and-count-c-and-derivative-languages">tac -
|
||||
tokenize and count C and derivative languages:</h3>
|
||||
<h3 id="tac---tokenize-and-count-c-and-derivative-languages">tac - tokenize and count C and derivative languages:</h3>
|
||||
<p><code>tac</code> computes C program size<br />
|
||||
(obfuscated / otherwise)<br />
|
||||
by splitting code as tokens small,<br />
|
||||
@@ -195,107 +194,84 @@ a public place for all to see<br />
|
||||
how badly I can butcher C!<br />
|
||||
</p>
|
||||
<h3 id="said-another-way.">Said another way….</h3>
|
||||
<p><code>tac</code> is the inverse of <code>cat</code>(1): it
|
||||
un-concatenates its input into C tokens, writing the token stream to
|
||||
<code>stdout</code>. There are options to suppress the token ids,
|
||||
summarize the token counts, and several options to allow it to be
|
||||
<p><code>tac</code> is the inverse of <code>cat</code>(1): it un-concatenates its input into C tokens,
|
||||
writing the token stream to <code>stdout</code>. There are options to suppress the token
|
||||
ids, summarize the token counts, and several options to allow it to be
|
||||
compatible with <code>iocccsize</code>.</p>
|
||||
<p>The token-based output is quite useful in analyzing source code (see
|
||||
below), and the counter is more accurate than <code>iocccsize</code>
|
||||
(see below); but this can be fixed by using the <code>-c</code>
|
||||
compatibility flag, restoring the following problems as in the official
|
||||
tool:</p>
|
||||
<p>The token-based output is quite useful in analyzing source code (see below),
|
||||
and the counter is more accurate than <code>iocccsize</code> (see below); but this can be
|
||||
fixed by using the <code>-c</code> compatibility flag, restoring the following problems as
|
||||
in the official tool:</p>
|
||||
<ul>
|
||||
<li>Whitespace <strong>within</strong> a string is <strong>not</strong>
|
||||
counted; this seems wrong, as these chars <strong>are</strong>
|
||||
significant.</li>
|
||||
<li>“<code>{;}</code>” is not counted within a double-quoted
|
||||
string.</li>
|
||||
<li>Whitespace preceding a comment is <code>char</code>-counted, unless
|
||||
the comment starts a line.</li>
|
||||
<li><code>-k</code> processes the reserved words within <code>//</code>
|
||||
comments(!), but not <code>/*</code>, changing the counts.</li>
|
||||
<li>Whitespace <strong>within</strong> a string is <strong>not</strong> counted;
|
||||
this seems wrong, as these chars <strong>are</strong> significant.</li>
|
||||
<li>“<code>{;}</code>” is not counted within a double-quoted string.</li>
|
||||
<li>Whitespace preceding a comment is <code>char</code>-counted, unless the comment starts a
|
||||
line.</li>
|
||||
<li><code>-k</code> processes the reserved words within <code>//</code> comments(!), but not <code>/*</code>,
|
||||
changing the counts.</li>
|
||||
</ul>
|
||||
<p>The following bugs are always corrected:</p>
|
||||
<ul>
|
||||
<li>Treats <code>/*/</code> as a complete comment
|
||||
(<code>/*/int if for/*/</code> has three keywords)</li>
|
||||
<li><code>-k</code> enables <code>//*</code> or within a line comment
|
||||
<code>/*</code> to initiate a comment block until following
|
||||
<code>*/</code></li>
|
||||
<li><code>-k</code> processes double quote characters in <code>//</code>
|
||||
comments - thus a solitary quote consumes everything until the next
|
||||
quote</li>
|
||||
<li>Single quotes are not handled correctly (<code>'"'</code> starts a
|
||||
double quote in <code>iocccsize</code>)</li>
|
||||
<li><code>#ifndef</code> is omitted as a keyword (but
|
||||
<code>#ifdef</code> is allowed?)</li>
|
||||
<li>Treats <code>/*/</code> as a complete comment (<code>/*/int if for/*/</code> has three keywords)</li>
|
||||
<li><code>-k</code> enables <code>//*</code> or within a line comment <code>/*</code> to initiate a comment block until following <code>*/</code></li>
|
||||
<li><code>-k</code> processes double quote characters in <code>//</code> comments - thus a solitary
|
||||
quote consumes everything until the next quote</li>
|
||||
<li>Single quotes are not handled correctly (<code>'"'</code> starts a double quote in <code>iocccsize</code>)</li>
|
||||
<li><code>#ifndef</code> is omitted as a keyword (but <code>#ifdef</code> is allowed?)</li>
|
||||
<li><code>I</code> is not a reserved word.</li>
|
||||
<li><code>tac</code> correctly penetrates <a
|
||||
href="../../2014/birken/index.html" title="Best use of port 1701">23rd
|
||||
century cloaking technology</a>. ;-)</li>
|
||||
<li><code>tac</code> correctly penetrates <a href="../../2014/birken/index.html" title="Best use of port 1701">23rd century cloaking technology</a>. ;-)</li>
|
||||
</ul>
|
||||
<p>There is one (known) remaining problem with detection:</p>
|
||||
<ul>
|
||||
<li>Comments between preprocessor hash and keyword are not replaced with
|
||||
whitespace; the following counts #include as two tokens, <code>#</code>
|
||||
and <code>include</code> (not as a reserved word):</li>
|
||||
<li>Comments between preprocessor hash and keyword are not replaced with whitespace;
|
||||
the following counts #include as two tokens, <code>#</code> and <code>include</code> (not as a reserved word):</li>
|
||||
</ul>
|
||||
<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><span class="pp">#</span><span class="er">/*this will not be counted*/include/*correctly*/<stdio.h></span></span></code></pre></div>
|
||||
<p>Fixing this properly hampers backwards compatibility in counting.
|
||||
This requires eliding comments during the translation phases (ISO
|
||||
5.1.1.2, phase 3), and yet still counting words correctly absent
|
||||
<code>-k</code>.</p>
|
||||
<p>Fixing this properly hampers backwards compatibility in counting. This requires
|
||||
eliding comments during the translation phases (ISO 5.1.1.2, phase 3), and yet still
|
||||
counting words correctly absent <code>-k</code>.</p>
|
||||
<h3 id="backwards-compatibility">Backwards Compatibility:</h3>
|
||||
<p><code>tac</code> was run over all 366 previous IOCCC winning
|
||||
entries:</p>
|
||||
<p><code>tac</code> was run over all 366 previous IOCCC winning entries:</p>
|
||||
<div class="sourceCode" id="cb6"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="fu">find</span> ~/src/obc <span class="at">-type</span> f <span class="at">-name</span> <span class="dt">\*</span>.c <span class="kw">|</span> <span class="fu">wc</span></span></code></pre></div>
|
||||
<p>The discrepancies found are documented and explained in the file <a
|
||||
href="discrepancies.html">discrepancies.html</a>.</p>
|
||||
<p>The discrepancies found are documented and explained in the file
|
||||
<a href="discrepancies.html">discrepancies.html</a>.</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="fu">find</span> ~/src/obc <span class="at">-type</span> f <span class="at">-a</span> <span class="at">-name</span> <span class="st">"*.c"</span> <span class="kw">|</span> <span class="fu">xargs</span> ./spotcheck.sh ./prog <span class="kw">|</span> <span class="ex">./spotdiff.sh</span> <span class="kw">|</span></span>
|
||||
<span id="cb7-2"><a href="#cb7-2" aria-hidden="true" tabindex="-1"></a> <span class="fu">grep</span> <span class="at">-v</span> keep <span class="kw">|</span> <span class="fu">diff</span> <span class="at">-bw</span> <span class="at">-</span> discrep<span class="pp">*</span> <span class="kw">|</span> <span class="fu">grep</span> <span class="st">"[<>] cl "</span></span></code></pre></div>
|
||||
<p>In summary, there are only 6 unique entries out of 366 that have any
|
||||
variation in Rule 2 counts; in all cases, the differences are due to
|
||||
bugs within <code>iocccsize</code>, described in detail in the file <a
|
||||
href="discrepancies.html">discrepancies.html</a>. There are only 40
|
||||
files (40/366, ~11%, including originals and variations) that differ at
|
||||
all, 31 only in word count; most word count differences appear related
|
||||
to comment block detection, weighted more towards recent entries (2011
|
||||
and onward = 20/40 ~50%).</p>
|
||||
<p>This (minor) variation in word count values has not been addressed
|
||||
since it is not a qualifying metric, nor is it very useful in a
|
||||
programming context: whitespace surrounds English words, not necessarily
|
||||
C tokens, as in <code>a+=1;</code>.</p>
|
||||
<p>Accuracy (versus compatibility) is demonstrated through a series of
|
||||
small test cases designed to allow exhaustive, hand-counted values for
|
||||
comparison with the tool values. These test cases were vital in
|
||||
debugging and regression testing, and provided a way to determine which
|
||||
tool was correct when there were differences.</p>
|
||||
<p>In summary, there are only 6 unique entries out of 366 that have any variation
|
||||
in Rule 2 counts; in all cases, the differences are due to bugs within
|
||||
<code>iocccsize</code>, described in detail in the file
|
||||
<a href="discrepancies.html">discrepancies.html</a>. There are only 40
|
||||
files (40/366, ~11%, including originals and variations) that differ at all, 31
|
||||
only in word count; most word count differences appear related to comment block
|
||||
detection, weighted more towards recent entries (2011 and onward = 20/40 ~50%).</p>
|
||||
<p>This (minor) variation in word count values has not been addressed since
|
||||
it is not a qualifying metric, nor is it very useful in a programming context:
|
||||
whitespace surrounds English words, not necessarily C tokens, as in <code>a+=1;</code>.</p>
|
||||
<p>Accuracy (versus compatibility) is demonstrated through a series of small test cases
|
||||
designed to allow exhaustive, hand-counted values for comparison with the tool values.
|
||||
These test cases were vital in debugging and regression testing, and provided a way to
|
||||
determine which tool was correct when there were differences.</p>
|
||||
<blockquote>
|
||||
<p>A version of this tool in more clearly written C (<a
|
||||
href="tac.c">tac.c</a>) is presented for the Judge’s consideration as a
|
||||
more accurate replacement for <code>iocccsize</code>. This obfuscated
|
||||
entry is derived from (and compatible with) that code, but due to
|
||||
obfuscation, has had some significant, deep changes for the contest.
|
||||
Nevertheless, the more clearly written code remains a spoiler for this
|
||||
entry.</p>
|
||||
<p>A version of this tool in more clearly written C (<a href="tac.c">tac.c</a>)
|
||||
is presented for the Judge’s consideration as a more accurate replacement for <code>iocccsize</code>.
|
||||
This obfuscated entry is derived from (and compatible with) that code,
|
||||
but due to obfuscation, has had some significant, deep changes for the contest.
|
||||
Nevertheless, the more clearly written code remains a spoiler for this entry.</p>
|
||||
</blockquote>
|
||||
<p>NB: <code>iocccsize</code> gets a different answer from
|
||||
<code>tac</code> on its own (<a
|
||||
href="../../2018/iocccsize.c">iocccsize.c</a>) source code;
|
||||
<code>tac</code> gets the correct answer. This is due to the
|
||||
aforementioned bugs within <code>iocccsize</code>, proved by fixing <a
|
||||
href="../../2018/iocccsize.c">iocccsize.c</a> with the included patch,
|
||||
so <code>iocccsize</code> reports the correct answer for itself.</p>
|
||||
<p>NB: <code>iocccsize</code> gets a different answer from <code>tac</code> on its own
|
||||
(<a href="../../2018/iocccsize.c">iocccsize.c</a>) source code;
|
||||
<code>tac</code> gets the correct answer. This is due to the aforementioned bugs within <code>iocccsize</code>,
|
||||
proved by fixing
|
||||
<a href="../../2018/iocccsize.c">iocccsize.c</a> with the included patch, so <code>iocccsize</code> reports
|
||||
the correct answer for itself.</p>
|
||||
<h3 id="but-wait-theres-more">But wait… There’s More!</h3>
|
||||
<p>There is no limit on line length, file length, comment length, or
|
||||
identifier length.</p>
|
||||
<p><code>tac</code> features an accurate tokenizer; which presents each
|
||||
C token on a line by itself. This feature enables interesting analyses
|
||||
of C (and C++) code that’s hard to get any other way.</p>
|
||||
<p>For instance, here is a simple token counter, useful in finding
|
||||
repeated long tokens, or operator frequency, or counting the references
|
||||
to identifiers, constants, or breadth of use of the language:</p>
|
||||
<p>There is no limit on line length, file length, comment length, or identifier length.</p>
|
||||
<p><code>tac</code> features an accurate tokenizer; which presents each C token on a line by itself.
|
||||
This feature enables interesting analyses of C (and C++) code that’s hard to get any other way.</p>
|
||||
<p>For instance, here is a simple token counter, useful in finding repeated long tokens, or operator
|
||||
frequency, or counting the references to identifiers, constants, or breadth of use of the
|
||||
language:</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="co">#!/usr/bin/env bash</span></span>
|
||||
<span id="cb8-2"><a href="#cb8-2" aria-hidden="true" tabindex="-1"></a><span class="fu">cat</span> <span class="va">$*</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-t</span> <span class="kw">|</span> <span class="fu">sort</span> <span class="kw">|</span> <span class="fu">uniq</span> <span class="at">-c</span> <span class="kw">|</span> <span class="fu">sort</span> <span class="at">-k1nr</span></span></code></pre></div>
|
||||
<p>And here is a C keyword frequency counter:</p>
|
||||
@@ -304,11 +280,10 @@ to identifiers, constants, or breadth of use of the language:</p>
|
||||
<span id="cb9-3"><a href="#cb9-3" aria-hidden="true" tabindex="-1"></a> <span class="fu">awk</span> <span class="st">'BEGIN{f="c11";while(getline<f)k[$1]=0} {if($1 in k)k[$1]++}END{for(i in k)print k[i],i}'</span></span>
|
||||
<span id="cb9-4"><a href="#cb9-4" aria-hidden="true" tabindex="-1"></a><span class="kw">}</span></span>
|
||||
<span id="cb9-5"><a href="#cb9-5" aria-hidden="true" tabindex="-1"></a><span class="fu">cat</span> <span class="va">$*</span> <span class="kw">|</span> <span class="ex">./prog</span> <span class="at">-t</span> <span class="kw">|</span> <span class="ex">iskeyword</span> <span class="kw">|</span> <span class="fu">sort</span> <span class="at">-k1nr</span></span></code></pre></div>
|
||||
<p>This script was used to “optimize” the reserved word order so the
|
||||
most frequent IOCCC winning entry keywords are checked first.</p>
|
||||
<p>An interesting aside: as might be expected, obfuscation has changed
|
||||
the frequency of keyword distribution over time. The top five for the
|
||||
decades:</p>
|
||||
<p>This script was used to “optimize” the reserved word order so the most frequent IOCCC
|
||||
winning entry keywords are checked first.</p>
|
||||
<p>An interesting aside: as might be expected, obfuscation has changed the frequency of
|
||||
keyword distribution over time. The top five for the decades:</p>
|
||||
<pre><code>1980s 1990s 2000s 2010s
|
||||
----- ----- ----- -----
|
||||
94 if 532 char 375 if 254 int
|
||||
@@ -316,17 +291,14 @@ decades:</p>
|
||||
59 while 417 int 332 int 198 if
|
||||
48 char 223 for 184 for 121 return
|
||||
43 int 223 void 165 return 104 char</code></pre>
|
||||
<p>The keyword list is external to the program, and is easily changed,
|
||||
sorted, checked, verified. This allows such additional programs in
|
||||
concert with the tool’s primary operation.</p>
|
||||
<p>A poor-man’s de-obfuscator can be based upon the output of
|
||||
<code>tac -t</code> and a handful of simple rules (and another use of
|
||||
the external keyword file). A more refined version of this is included
|
||||
in the file <a href="unob.sh">unob.sh</a>, but the simple code below is
|
||||
a serviceable obfuscated C de-obfuscator in a <em>scripting
|
||||
<p>The keyword list is external to the program, and is easily changed, sorted, checked, verified.
|
||||
This allows such additional programs in concert with the tool’s primary operation.</p>
|
||||
<p>A poor-man’s de-obfuscator can be based upon the output of <code>tac -t</code> and a
|
||||
handful of simple rules (and another use of the external keyword file). A more
|
||||
refined version of this is included in the file <a href="unob.sh">unob.sh</a>, but the
|
||||
simple code below is a serviceable obfuscated C de-obfuscator in a <em>scripting
|
||||
language</em>. It really is this easy with <code>tac</code>:</p>
|
||||
<div class="sourceCode" id="cb11"><pre
|
||||
class="sourceCode sh"><code class="sourceCode bash"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a><span class="co">#!/usr/bin/env bash</span></span>
|
||||
<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="co">#!/usr/bin/env bash</span></span>
|
||||
<span id="cb11-2"><a href="#cb11-2" aria-hidden="true" tabindex="-1"></a><span class="va">script</span><span class="op">=</span><span class="st">'</span></span>
|
||||
<span id="cb11-3"><a href="#cb11-3" aria-hidden="true" tabindex="-1"></a><span class="st">BEGIN {</span></span>
|
||||
<span id="cb11-4"><a href="#cb11-4" aria-hidden="true" tabindex="-1"></a><span class="st"> last=nl="\n";</span></span>
|
||||
@@ -367,363 +339,195 @@ class="sourceCode sh"><code class="sourceCode bash"><span id="cb11-1"><a href="#
|
||||
<span id="cb11-39"><a href="#cb11-39" aria-hidden="true" tabindex="-1"></a><span class="fu">cat</span> <span class="va">$*</span> <span class="kw">|</span> <span class="fu">sed</span> <span class="st">'s/#include/##include/'</span> <span class="kw">|</span> <span class="fu">cpp</span> <span class="at">-E</span> <span class="at">-trigraphs</span> <span class="kw">|</span></span>
|
||||
<span id="cb11-40"><a href="#cb11-40" aria-hidden="true" tabindex="-1"></a><span class="fu">sed</span> <span class="st">'s/^# .*$//'</span> <span class="kw">|</span> <span class="fu">sed</span> <span class="st">'s/^#//'</span> <span class="kw">|</span></span>
|
||||
<span id="cb11-41"><a href="#cb11-41" aria-hidden="true" tabindex="-1"></a><span class="ex">./prog</span> <span class="at">-t</span> <span class="kw">|</span> <span class="fu">awk</span> <span class="st">"</span><span class="va">$script</span><span class="st">"</span></span></code></pre></div>
|
||||
<h3 id="on-the-question-of-obfuscation">On the question of
|
||||
obfuscation:</h3>
|
||||
<h3 id="on-the-question-of-obfuscation">On the question of obfuscation:</h3>
|
||||
<ul>
|
||||
<li><p>I assume you noticed the <a
|
||||
href="https://www.youtube.com/watch?v=fUspLVStPbk&start=53"
|
||||
title="Meaning of Life">braces</a>?</p>
|
||||
<li><p>I assume you noticed the <a href="https://www.youtube.com/watch?v=fUspLVStPbk&start=53" title="Meaning of Life">braces</a>?</p>
|
||||
<p><em>Every brace is sacred,<br />
|
||||
Every brace is great.<br />
|
||||
If a brace is wasted,<br />
|
||||
Clang gets quite irate</em>.</p></li>
|
||||
<li><p>Keywords follow the 2010s top five, without the <code>if</code>,
|
||||
for interesting flow control.</p></li>
|
||||
<li><p>Sometimes a <code>for</code> can be an <code>else</code> - <a
|
||||
href="https://www.youtube.com/watch?v=OHVjs4aobqs"
|
||||
title="Inconceivable">inconceivable</a>!</p></li>
|
||||
<li><p>I see the <code>getopt(3)</code>. But “<a
|
||||
href="https://www.youtube.com/watch?v=Ug75diEyiA0"
|
||||
title="Where's the beef?">where’s the beef?</a>”</p></li>
|
||||
<li><p>No character constants, several <code>int</code> constants, and
|
||||
one string (hint: which does not encode letters) – how does this code
|
||||
parse code?</p>
|
||||
<li><p>Keywords follow the 2010s top five, without the <code>if</code>, for interesting flow control.</p></li>
|
||||
<li><p>Sometimes a <code>for</code> can be an <code>else</code> - <a href="https://www.youtube.com/watch?v=OHVjs4aobqs" title="Inconceivable">inconceivable</a>!</p></li>
|
||||
<li><p>I see the <code>getopt(3)</code>. But “<a href="https://www.youtube.com/watch?v=Ug75diEyiA0" title="Where's the beef?">where’s the beef?</a>”</p></li>
|
||||
<li><p>No character constants, several <code>int</code> constants, and one string
|
||||
(hint: which does not encode letters) – how does this code parse code?</p>
|
||||
<ul>
|
||||
<li><p>Interesting aside: how many is “several <code>int</code>
|
||||
constants”?</p>
|
||||
<p>./prog < prog.c 2>/dev/null | awk ‘$1~/260/{a[$2]++}END{for(i
|
||||
in a)print i,a[i]}’ … | wc</p></li>
|
||||
<li><p>Interesting aside: how many is “several <code>int</code> constants”?</p>
|
||||
<p>./prog < prog.c 2>/dev/null | awk ‘$1~/260/{a[$2]++}END{for(i in a)print i,a[i]}’
|
||||
… | wc</p></li>
|
||||
</ul>
|
||||
<p>Which numbers are most often used?</p>
|
||||
<pre><code> ... | sort -k2nr | sed 5q</code></pre></li>
|
||||
<li><p>The code describes its function by careful arrangement of
|
||||
variables up front…</p></li>
|
||||
<li><p>…coupled with a description of the typical IOCCC contestant, or
|
||||
at least the author</p></li>
|
||||
<li><p>The code describes its function by careful arrangement of variables up front…</p></li>
|
||||
<li><p>…coupled with a description of the typical IOCCC contestant, or at least the author</p></li>
|
||||
<li><p>Why shouldn’t trigraph parsing be written in trigraph?</p></li>
|
||||
<li><p>Where <a href="../../2018/iocccsize.c">iocccsize.c</a> mocks,
|
||||
this code flaunts: “<em>no matter how well you may think you understand
|
||||
this code, you don’t, so don’t mess with it. :-)</em>”</p></li>
|
||||
<li><p><code>O,0,l,1</code> are used to confusing effect, local names
|
||||
obscure global names.</p></li>
|
||||
<li><p>Globals are used to pass information between routines: don’t
|
||||
reorder “unrelated” statements….</p></li>
|
||||
<li><p>How does the compatibility mode account for the fundamentally
|
||||
different manner of computation?</p></li>
|
||||
<li><p>The algorithm is quite efficient; reserved word detection and
|
||||
trigraph parsing particularly so.</p></li>
|
||||
<li><p>This may be the first obfuscated submission that provides the
|
||||
means for its own de-obfuscation.</p></li>
|
||||
<li><p>Where <a href="../../2018/iocccsize.c">iocccsize.c</a> mocks, this code flaunts:
|
||||
“<em>no matter how well you may think you understand this code, you don’t, so don’t mess with it. :-)</em>”</p></li>
|
||||
<li><p><code>O,0,l,1</code> are used to confusing effect, local names obscure global names.</p></li>
|
||||
<li><p>Globals are used to pass information between routines: don’t reorder “unrelated” statements….</p></li>
|
||||
<li><p>How does the compatibility mode account for the fundamentally different manner of computation?</p></li>
|
||||
<li><p>The algorithm is quite efficient; reserved word detection and trigraph parsing particularly so.</p></li>
|
||||
<li><p>This may be the first obfuscated submission that provides the means for its own de-obfuscation.</p></li>
|
||||
</ul>
|
||||
<h3 id="rule-2">Rule 2:</h3>
|
||||
<p>The keyword list is externalized as an include file. This presents a
|
||||
useful feature for the source code: not only can the reserved word
|
||||
script above be produced, but the tool can be rebuilt with any set of
|
||||
reserved words, just by using a different list. For instance: removing
|
||||
all the secondary keywords; removing all the C11 keywords; trying just
|
||||
K&R C. Since C++ and Java share the same operators as C, just change
|
||||
the keyword list and <code>tac</code> will correctly tokenize both of
|
||||
these; the tokens <code>>>></code> and <code>::</code> can be
|
||||
handled with a short post-filter (<a href="tokenfix.sh">tokenfix.sh</a>,
|
||||
included).</p>
|
||||
<p>I believe this entry may also satisfy the request for gratuitous use
|
||||
of all the C11 keywords? Whether this context satisfies “intended C
|
||||
language context” is a matter of interpretation. ;-) And
|
||||
<code>tac</code> is ready for the IOCCC++ contest. And the IOJCC trash
|
||||
can.</p>
|
||||
<p>The keyword list is externalized as an include file. This presents a useful
|
||||
feature for the source code: not only can the reserved word script above be
|
||||
produced, but the tool can be rebuilt with any set of reserved words, just by
|
||||
using a different list. For instance: removing all the secondary keywords;
|
||||
removing all the C11 keywords; trying just K&R C. Since C++ and Java share the
|
||||
same operators as C, just change the keyword list and <code>tac</code> will correctly
|
||||
tokenize both of these; the tokens <code>>>></code> and <code>::</code> can be handled with a short
|
||||
post-filter (<a href="tokenfix.sh">tokenfix.sh</a>, included).</p>
|
||||
<p>I believe this entry may also satisfy the request for gratuitous use of all the
|
||||
C11 keywords? Whether this context satisfies “intended C language context” is a
|
||||
matter of interpretation. ;-) And <code>tac</code> is ready for the IOCCC++ contest. And
|
||||
the IOJCC trash can.</p>
|
||||
<p>The following reserved word files are included:</p>
|
||||
<ul>
|
||||
<li><a href="kandr">kandr</a> from my venerable 1978 18th printing “The
|
||||
C Programming Language”</li>
|
||||
<li><a href="v7unix">v7unix</a> 7th edition Unix source code, extracted
|
||||
from c00.c</li>
|
||||
<li><a href="kandr2">kandr2</a> from my 1988 1st printing “The C
|
||||
Programming Language”, 2e</li>
|
||||
<li><a href="kandr">kandr</a> from my venerable 1978 18th printing “The C Programming Language”</li>
|
||||
<li><a href="v7unix">v7unix</a> 7th edition Unix source code, extracted from c00.c</li>
|
||||
<li><a href="kandr2">kandr2</a> from my 1988 1st printing “The C Programming Language”, 2e</li>
|
||||
<li><a href="ansi">ansi</a> ANSI X3.159-1989</li>
|
||||
<li><a href="c99">c99</a> ISO/IEC 9899:1999(E)</li>
|
||||
<li><a href="c11">c11</a> ISO/IEC 9899:201x(E) N1570</li>
|
||||
<li><a href="c++98">c++98</a>
|
||||
http://en.cppreference.com/w/cpp/keyword</li>
|
||||
<li><a href="c++11">c++11</a> ISO/IEC 14882:2011(E) N3337
|
||||
2012-01-16</li>
|
||||
<li><a href="c++14">c++14</a> ISO/IEC 14882:2014(E) N4296
|
||||
2014-11-09</li>
|
||||
<li><a href="java8">java8</a> <a
|
||||
href="http://docs.oracle.com/javase/specs/index.html"
|
||||
class="uri">http://docs.oracle.com/javase/specs/index.html</a></li>
|
||||
<li><a href="ioccc.kw.freq">ioccc.kw.freq</a> c11 + additional words,
|
||||
sorted on frequency of occurrence in IOCCC entries</li>
|
||||
<li><a href="c++98">c++98</a> http://en.cppreference.com/w/cpp/keyword</li>
|
||||
<li><a href="c++11">c++11</a> ISO/IEC 14882:2011(E) N3337 2012-01-16</li>
|
||||
<li><a href="c++14">c++14</a> ISO/IEC 14882:2014(E) N4296 2014-11-09</li>
|
||||
<li><a href="java8">java8</a> <a href="http://docs.oracle.com/javase/specs/index.html" class="uri">http://docs.oracle.com/javase/specs/index.html</a></li>
|
||||
<li><a href="ioccc.kw.freq">ioccc.kw.freq</a> c11 + additional words, sorted on frequency of occurrence in IOCCC entries</li>
|
||||
</ul>
|
||||
<p>NB: The keyword file used in this code is derived from the list in <a
|
||||
href="../../2018/iocccsize.c">iocccsize.c</a>, which is neither complete
|
||||
(<code>#define</code>, <code>#ifndef</code>, <code>#undef</code> are
|
||||
missing – yes, Virginia knows about <code>#define</code> omitted on
|
||||
purpose), nor correct (many more are added: <code>I</code>,
|
||||
<code>true</code>, <code>bool</code>, <code>compl</code>, …):</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="kw">(</span><span class="fu">sed</span> <span class="at">-n</span> <span class="st">'1p'</span> c11<span class="kw">;</span> <span class="fu">sed</span> <span class="at">-n</span> <span class="st">'2,$p'</span> ioccc.kw.freq <span class="kw">|</span> <span class="fu">sort</span><span class="kw">)</span> <span class="kw">|</span> <span class="fu">comm</span> <span class="at">-3</span> <span class="at">-</span> c11</span></code></pre></div>
|
||||
<p>That is an obfuscated way to say “diff”. But it also more clearly
|
||||
shows the, um, diffs.</p>
|
||||
<p>The usage string is similarly externalized, providing a better
|
||||
usability string than the limits would otherwise allow. If this is
|
||||
considered bending the rules too far, just <code>-DU=O</code> to get a
|
||||
passible, if cryptic, usage message using no additional octets than
|
||||
without the define. This also allows the builder to configure the amount
|
||||
of help a utility should provide (<a
|
||||
href="https://www.youtube.com/watch?v=VU0GYSA1POs" title="Ants">you want
|
||||
a manpage? Because that’s how you get a manpage.</a>) – a rather
|
||||
<p>NB: The keyword file used in this code is derived from the list in <a href="../../2018/iocccsize.c">iocccsize.c</a>,
|
||||
which is neither complete (<code>#define</code>, <code>#ifndef</code>, <code>#undef</code> are missing
|
||||
– yes, Virginia knows about <code>#define</code> omitted on purpose),
|
||||
nor correct (many more are added: <code>I</code>, <code>true</code>, <code>bool</code>, <code>compl</code>, …):</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="kw">(</span><span class="fu">sed</span> <span class="at">-n</span> <span class="st">'1p'</span> c11<span class="kw">;</span> <span class="fu">sed</span> <span class="at">-n</span> <span class="st">'2,$p'</span> ioccc.kw.freq <span class="kw">|</span> <span class="fu">sort</span><span class="kw">)</span> <span class="kw">|</span> <span class="fu">comm</span> <span class="at">-3</span> <span class="at">-</span> c11</span></code></pre></div>
|
||||
<p>That is an obfuscated way to say “diff”. But it also more clearly shows the, um, diffs.</p>
|
||||
<p>The usage string is similarly externalized, providing a better usability string than
|
||||
the limits would otherwise allow. If this is considered bending the rules too far,
|
||||
just <code>-DU=O</code> to get a passible, if cryptic, usage message using no additional octets
|
||||
than without the define.
|
||||
This also allows the builder to configure the amount of help a utility should provide
|
||||
(<a href="https://www.youtube.com/watch?v=VU0GYSA1POs" title="Ants">you want a manpage? Because that’s how you get a manpage.</a>) – a rather
|
||||
significant point of contention made moot.</p>
|
||||
<p>There is definitely abuse of the Rule2 counter, exploiting a
|
||||
“feature” of <code>iocccsize</code>: <code>iocccsize</code> does not
|
||||
Rule2 count <code>{</code>, <code>}</code> and <code>;</code> when
|
||||
followed by whitespace – even within a string! Thus: Freecode, a simple,
|
||||
uncounted, highly obfuscated encoding of a central part of this program.
|
||||
(The reserved word list is not Freecoded, both because it is useful
|
||||
apart from the program, and because Freecode is not entirely free.)</p>
|
||||
<p>There is definitely abuse of the Rule2 counter, exploiting a “feature” of
|
||||
<code>iocccsize</code>: <code>iocccsize</code> does not Rule2 count <code>{</code>, <code>}</code> and <code>;</code> when followed by
|
||||
whitespace – even within a string! Thus: Freecode, a simple, uncounted, highly
|
||||
obfuscated encoding of a central part of this program. (The reserved word list
|
||||
is not Freecoded, both because it is useful apart from the program, and because
|
||||
Freecode is not entirely free.)</p>
|
||||
<ul>
|
||||
<li>Some restrictions apply. Not approved for all uses. Some assembly
|
||||
required.</li>
|
||||
<li>Some restrictions apply. Not approved for all uses. Some assembly required.</li>
|
||||
</ul>
|
||||
<h3 id="compilation">Compilation:</h3>
|
||||
<p>The code is ANSI compliant, but it does have a string longer than 509
|
||||
characters. It has been tested on OSX and Linux, Clang and GCC.</p>
|
||||
<p>The code uses trigraphs, ironically: it parses trigraphs with
|
||||
trigraph code. Because that’s funny. And it remains obscure after, so
|
||||
trigraphs are not used for obfuscation. Thus
|
||||
<code>-trigraphs -Wno-trigraphs</code> (which is also humorous).</p>
|
||||
<p>It’s obfuscated C. Thus
|
||||
<code>-Wno-parentheses -Wno-empty-body -Wno-char-subscripts</code>.</p>
|
||||
<p>The code uses <code>unsigned char</code>s, but C strings are
|
||||
<code>signed</code>. Thus <code>-Wno-pointer-sign</code>. NB: This is
|
||||
<em>not</em> a portability concern, the one string holds only printable
|
||||
ASCII characters.</p>
|
||||
<p>The code is ANSI compliant, but it does have a string longer than 509 characters.
|
||||
It has been tested on OSX and Linux, Clang and GCC.</p>
|
||||
<p>The code uses trigraphs, ironically: it parses trigraphs with trigraph code.
|
||||
Because that’s funny. And it remains obscure after, so trigraphs are not used
|
||||
for obfuscation. Thus <code>-trigraphs -Wno-trigraphs</code> (which is also humorous).</p>
|
||||
<p>It’s obfuscated C. Thus <code>-Wno-parentheses -Wno-empty-body -Wno-char-subscripts</code>.</p>
|
||||
<p>The code uses <code>unsigned char</code>s, but C strings are <code>signed</code>. Thus <code>-Wno-pointer-sign</code>.
|
||||
NB: This is <em>not</em> a portability concern, the one string holds only printable ASCII characters.</p>
|
||||
<p>Thus:</p>
|
||||
<div class="sourceCode" id="cb14"><pre
|
||||
class="sourceCode sh"><code class="sourceCode bash"><span id="cb14-1"><a href="#cb14-1" aria-hidden="true" tabindex="-1"></a><span class="fu">cc</span> <span class="at">-ansi</span> <span class="at">-Wall</span> <span class="at">-trigraphs</span> <span class="at">-Wno-trigraphs</span> <span class="at">-Wno-parentheses</span> <span class="at">-Wno-empty-body</span> <span class="at">-Wno-char-subscripts</span> <span class="at">-Wno-pointer-sign</span> <span class="at">-DU</span><span class="op">=</span>O <span class="at">-DW</span><span class="op">=</span><span class="dt">\"</span>keywords<span class="dt">\"</span> <span class="at">-o</span> prog prog.c</span></code></pre></div>
|
||||
<div class="sourceCode" id="cb14"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb14-1"><a href="#cb14-1" aria-hidden="true" tabindex="-1"></a><span class="fu">cc</span> <span class="at">-ansi</span> <span class="at">-Wall</span> <span class="at">-trigraphs</span> <span class="at">-Wno-trigraphs</span> <span class="at">-Wno-parentheses</span> <span class="at">-Wno-empty-body</span> <span class="at">-Wno-char-subscripts</span> <span class="at">-Wno-pointer-sign</span> <span class="at">-DU</span><span class="op">=</span>O <span class="at">-DW</span><span class="op">=</span><span class="dt">\"</span>keywords<span class="dt">\"</span> <span class="at">-o</span> prog prog.c</span></code></pre></div>
|
||||
<h3 id="coda">Coda:</h3>
|
||||
<p><a href="../../authors.html#Cody_Boone_Ferguson">Cody Boone
|
||||
Ferguson</a> was relentless in his pursuit of bugs. Thanks to his
|
||||
reports, the version of <a href="unob.sh">unob.sh</a> is stronger,
|
||||
<code>tac</code> groks digraphs, <a href="tokenfix.sh">tokenfix.sh</a>
|
||||
corrects for missing digraphs in <a href="prog.c">prog.c</a>, and the
|
||||
program <a href="manpage.sh">manpage.sh</a> was added to the corpus.</p>
|
||||
<p><a href="manpage.sh">manpage.sh</a> is a useful program that turns
|
||||
ASCII versions of man pages (e.g. <a href="tac.man">tac.man</a>) into
|
||||
real man pages. It works for C and C-like languages, command lines, and
|
||||
was designed to handle man page sections 1-8. It works well on most
|
||||
inputs, but tends to need some raw nroff for more fancy constructions,
|
||||
such as combined arguments (e.g. the <code>-r</code> and <code>-s</code>
|
||||
arguments to tac are not recognised when written as <code>-rs</code> in
|
||||
prose).</p>
|
||||
<p><a href="../../authors.html#Cody_Boone_Ferguson">Cody Boone Ferguson</a> was relentless in his pursuit of bugs.
|
||||
Thanks to his reports, the version of <a href="unob.sh">unob.sh</a> is stronger,
|
||||
<code>tac</code> groks digraphs, <a href="tokenfix.sh">tokenfix.sh</a> corrects for missing digraphs
|
||||
in <a href="prog.c">prog.c</a>, and the program <a href="manpage.sh">manpage.sh</a> was added to the corpus.</p>
|
||||
<p><a href="manpage.sh">manpage.sh</a> is a useful program that turns ASCII versions of man
|
||||
pages (e.g. <a href="tac.man">tac.man</a>) into real man pages. It works for C and C-like
|
||||
languages, command lines, and was designed to handle man page sections 1-8. It
|
||||
works well on most inputs, but tends to need some raw nroff for more fancy
|
||||
constructions, such as combined arguments (e.g. the <code>-r</code> and <code>-s</code> arguments to tac
|
||||
are not recognised when written as <code>-rs</code> in prose).</p>
|
||||
<p>Try:</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">./manpage.sh</span> tac</span>
|
||||
<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">./manpage.sh</span> tac</span>
|
||||
<span id="cb15-2"><a href="#cb15-2" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb15-3"><a href="#cb15-3" aria-hidden="true" tabindex="-1"></a><span class="ex">./manpage.sh</span> <span class="at">-h</span></span>
|
||||
<span id="cb15-4"><a href="#cb15-4" aria-hidden="true" tabindex="-1"></a><span class="ex">./manpage.sh</span> <span class="at">-h</span> <span class="kw">|</span> <span class="ex">./manpage.sh</span></span>
|
||||
<span id="cb15-5"><a href="#cb15-5" aria-hidden="true" tabindex="-1"></a><span class="ex">./manpage.sh</span> <span class="at">-h</span> <span class="kw">|</span> <span class="ex">./manpage.sh</span> <span class="at">-R</span> <span class="kw">|</span> <span class="fu">less</span></span>
|
||||
<span id="cb15-6"><a href="#cb15-6" aria-hidden="true" tabindex="-1"></a><span class="ex">./manpage.sh</span> <span class="at">-h</span> <span class="kw">|</span> <span class="ex">./manpage.sh</span> <span class="at">-P</span> <span class="kw">|</span> <span class="fu">lpr</span></span></code></pre></div>
|
||||
<p>NOTE: in 2023 the <code>tac.man</code> was updated to proper man
|
||||
format and renamed <a href="tac.1">tac.1</a>.</p>
|
||||
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
|
||||
License:</h2>
|
||||
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
|
||||
Reserved. You are free to share and adapt this file under the terms of
|
||||
this license:</p>
|
||||
<p>NOTE: in 2023 the <code>tac.man</code> was updated to proper man format and renamed
|
||||
<a href="tac.1">tac.1</a>.</p>
|
||||
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0 License:</h2>
|
||||
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights Reserved.
|
||||
You are free to share and adapt this file under the terms of this license:</p>
|
||||
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
|
||||
<p>For more information, see:
|
||||
https://creativecommons.org/licenses/by-sa/4.0/</p>
|
||||
<p>For more information, see: https://creativecommons.org/licenses/by-sa/4.0/</p>
|
||||
|
||||
<!-- END: this line ends content for HTML phase 21 by: bin/pandoc-wrapper.sh via bin/md2html.sh -->
|
||||
<!-- START: this line starts content for HTML phase 22 by: bin/output-index-inventory.sh via bin/md2html.sh -->
|
||||
|
||||
<!-- START: this line starts content generated by: bin/output-index-inventory.sh -->
|
||||
|
||||
<h1 id="inventory-for-2018burton2"><a name="inventory"></a>Inventory for
|
||||
2018/burton2</h1>
|
||||
<h1 id="inventory-for-2018burton2"><a name="inventory"></a>Inventory for 2018/burton2</h1>
|
||||
<p><a href="#top">Jump to top</a></p>
|
||||
<h2 id="primary-files">Primary files</h2>
|
||||
<ul>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/prog.c">prog.c</a>
|
||||
- entry source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/Makefile">Makefile</a>
|
||||
- entry Makefile</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/prog.orig.c">prog.orig.c</a>
|
||||
- original source</li>
|
||||
<li><a href="discrepancies.html">discrepancies.html</a> - field-by-field
|
||||
difference between iocccsize and ion</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/freqcount.sh">freqcount.sh</a>
|
||||
- frequency count utility</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/tac.1">tac.1</a>
|
||||
- tokenize and count man page</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/tokcount.sh">tokcount.sh</a>
|
||||
- count the tokens produced by prog -t</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/try.sh">try.sh</a>
|
||||
- how to run</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/fixed_iocccsize.c">fixed_iocccsize.c</a>
|
||||
- iocccsize with patch applied</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/ioc_without_quote">ioc_without_quote</a>
|
||||
- test suite data</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/ioccc.kw.freq">ioccc.kw.freq</a>
|
||||
- iocccsize keywords: sorted by 201x frequency</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/iocccbug01.c">iocccbug01.c</a>
|
||||
- test cases demonstrating problems with iocccsize</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/iocccbug02.c">iocccbug02.c</a>
|
||||
- test cases demonstrating problems with iocccsize</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/iocccbug03.c">iocccbug03.c</a>
|
||||
- test cases demonstrating problems with iocccsize</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/iocccbug04.c">iocccbug04.c</a>
|
||||
- test cases demonstrating problems with iocccsize</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/iocccbug05.c">iocccbug05.c</a>
|
||||
- test cases demonstrating problems with iocccsize</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/iocccbug06.c">iocccbug06.c</a>
|
||||
- test cases demonstrating problems with iocccsize</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/manpage.sh">manpage.sh</a>
|
||||
- turns ASCII versions of man into real man pages</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/mkkeywords.sh">mkkeywords.sh</a>
|
||||
- reads a file from variations produces string for prog.c</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/results.k">results.k</a>
|
||||
- results with -k</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/tac.c">tac.c</a>
|
||||
- tokenize and count C-like languages</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test01.c">test01.c</a>
|
||||
- test case source code</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test02.c">test02.c</a>
|
||||
- test case source code</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test03.c">test03.c</a>
|
||||
- test case source code</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test04.c">test04.c</a>
|
||||
- test case source code</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test05.c">test05.c</a>
|
||||
- test case source code</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test06.c">test06.c</a>
|
||||
- test case source code</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test07.c">test07.c</a>
|
||||
- test case source code</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test08.c">test08.c</a>
|
||||
- test case source code</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test09.c">test09.c</a>
|
||||
- test case source code</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test10.c">test10.c</a>
|
||||
- test case source code</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test11.c">test11.c</a>
|
||||
- test case source code</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test12.c">test12.c</a>
|
||||
- test case source code</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test13.c">test13.c</a>
|
||||
- test case source code</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test14.c">test14.c</a>
|
||||
- test case source code</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/tokenfix.sh">tokenfix.sh</a>
|
||||
- short post-filter</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/unob.sh">unob.sh</a>
|
||||
- refined version of de-obfuscator</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/ansi">ansi</a>
|
||||
- reserved words for a given C standard</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/author-README.txt">author-README.txt</a>
|
||||
- author supplied README</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/c++11">c++11</a>
|
||||
- reserved words for a given C standard</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/c++14">c++14</a>
|
||||
- reserved words for a given C standard</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/c++98">c++98</a>
|
||||
- reserved words for a given C standard</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/c11">c11</a>
|
||||
- reserved words for a given C standard</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/c99">c99</a>
|
||||
- reserved words for a given C standard</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/java8">java8</a>
|
||||
- reserved words for a Java v8</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/kandr2">kandr2</a>
|
||||
- reserved words for a given C standard</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/kandr">kandr</a>
|
||||
- reserved words for a given C standard</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/patch">patch</a>
|
||||
- patch to fix iocccsize source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/results">results</a>
|
||||
- results without -k</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/runtest.sh">runtest.sh</a>
|
||||
- test suite</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/spotcheck.sh">spotcheck.sh</a>
|
||||
- script to test a lot of files vs iocccsize</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/v7unix">v7unix</a>
|
||||
- reserved words for a given C standard</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/spotdiff.sh">spotdiff.sh</a>
|
||||
- summarize the results of spotcheck</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/src.doc.txt">src.doc.txt</a>
|
||||
- SPOILER WARNING hints about the source</li>
|
||||
<li><a href="2018_burton2.tar.bz2">2018_burton2.tar.bz2</a> - download
|
||||
entry source</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/prog.c">prog.c</a> - entry source</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/Makefile">Makefile</a> - entry Makefile</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/prog.orig.c">prog.orig.c</a> - original source</li>
|
||||
<li><a href="discrepancies.html">discrepancies.html</a> - field-by-field difference between iocccsize and ion</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/freqcount.sh">freqcount.sh</a> - frequency count utility</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/tac.1">tac.1</a> - tokenize and count man page</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/tokcount.sh">tokcount.sh</a> - count the tokens produced by prog -t</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/try.sh">try.sh</a> - how to run</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/fixed_iocccsize.c">fixed_iocccsize.c</a> - iocccsize with patch applied</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/ioc_without_quote">ioc_without_quote</a> - test suite data</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/ioccc.kw.freq">ioccc.kw.freq</a> - iocccsize keywords: sorted by 201x frequency</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/iocccbug01.c">iocccbug01.c</a> - test cases demonstrating problems with iocccsize</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/iocccbug02.c">iocccbug02.c</a> - test cases demonstrating problems with iocccsize</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/iocccbug03.c">iocccbug03.c</a> - test cases demonstrating problems with iocccsize</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/iocccbug04.c">iocccbug04.c</a> - test cases demonstrating problems with iocccsize</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/iocccbug05.c">iocccbug05.c</a> - test cases demonstrating problems with iocccsize</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/iocccbug06.c">iocccbug06.c</a> - test cases demonstrating problems with iocccsize</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/manpage.sh">manpage.sh</a> - turns ASCII versions of man into real man pages</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/mkkeywords.sh">mkkeywords.sh</a> - reads a file from variations produces string for prog.c</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/results.k">results.k</a> - results with -k</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/tac.c">tac.c</a> - tokenize and count C-like languages</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test01.c">test01.c</a> - test case source code</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test02.c">test02.c</a> - test case source code</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test03.c">test03.c</a> - test case source code</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test04.c">test04.c</a> - test case source code</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test05.c">test05.c</a> - test case source code</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test06.c">test06.c</a> - test case source code</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test07.c">test07.c</a> - test case source code</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test08.c">test08.c</a> - test case source code</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test09.c">test09.c</a> - test case source code</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test10.c">test10.c</a> - test case source code</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test11.c">test11.c</a> - test case source code</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test12.c">test12.c</a> - test case source code</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test13.c">test13.c</a> - test case source code</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/test14.c">test14.c</a> - test case source code</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/tokenfix.sh">tokenfix.sh</a> - short post-filter</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/unob.sh">unob.sh</a> - refined version of de-obfuscator</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/ansi">ansi</a> - reserved words for a given C standard</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/author-README.txt">author-README.txt</a> - author supplied README</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/c++11">c++11</a> - reserved words for a given C standard</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/c++14">c++14</a> - reserved words for a given C standard</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/c++98">c++98</a> - reserved words for a given C standard</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/c11">c11</a> - reserved words for a given C standard</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/c99">c99</a> - reserved words for a given C standard</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/java8">java8</a> - reserved words for a Java v8</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/kandr2">kandr2</a> - reserved words for a given C standard</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/kandr">kandr</a> - reserved words for a given C standard</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/patch">patch</a> - patch to fix iocccsize source</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/results">results</a> - results without -k</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/runtest.sh">runtest.sh</a> - test suite</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/spotcheck.sh">spotcheck.sh</a> - script to test a lot of files vs iocccsize</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/v7unix">v7unix</a> - reserved words for a given C standard</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/spotdiff.sh">spotdiff.sh</a> - summarize the results of spotcheck</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/src.doc.txt">src.doc.txt</a> - SPOILER WARNING hints about the source</li>
|
||||
<li><a href="2018_burton2.tar.bz2">2018_burton2.tar.bz2</a> - download entry source</li>
|
||||
</ul>
|
||||
<h2 id="secondary-files">Secondary files</h2>
|
||||
<ul>
|
||||
<li><a href="index.html">index.html</a> - entry home page</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/.entry.json">.entry.json</a>
|
||||
- description of entry in JSON</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/.gitignore">.gitignore</a>
|
||||
- list of files that should not be committed under git</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/.entry.json">.entry.json</a> - description of entry in JSON</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/.gitignore">.gitignore</a> - list of files that should not be committed under git</li>
|
||||
<li><a href=".path">.path</a> - directory path from top directory</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/README.md">README.md</a>
|
||||
- markdown source for index.html</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/discrepancies.md">discrepancies.md</a>
|
||||
- markdown source for discrepancies.html</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/README.md">README.md</a> - markdown source for index.html</li>
|
||||
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/discrepancies.md">discrepancies.md</a> - markdown source for discrepancies.html</li>
|
||||
</ul>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/output-index-inventory.sh -->
|
||||
|
||||
Reference in new issue
Block a user