add hack-a-round for language specified markdown code blocks
When language is specified in a markdown code block such as:
````
```c
printf("Hello, world!\n");
```
````
is used, the resulting HTML as produced by `pandoc(1)` combined
with our revised `ioccc.css` is not intent the code block well.
A temporary "_hack-a-round_" is to turn the "markdown code language
specifier" into an HTML comment. For example:
````
```<!---c-->
printf("Hello, world!\n");
```
````
This commits turns off existing markdown code language specifiers
for now, while preserving our ability to restore them in the future
when a better "_hack-a-round_" to the "markdown code language
specifier" problem is found.
The HTML impact if this "_hack-a-round_" is to produce HTML that
looks like this:
```
<pre class="<!---c-->"><code> .. </code></pre>
```
We might be able to create a complex set of classes for each markdown
code language (there won't be very many) in `ioccc.css`, or we might
find a more general CSS (or maybe `pandoc(1)`?) solution.
For now, this hack-a-round will have to do.
This commit is contained in:
Landon Curt Noll committed
1 parent
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commit
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700 files changed
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+13
-13
@@ -1,26 +1,26 @@
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## To build:
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|
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```sh
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```<!---sh-->
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make
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```
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## To use:
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```sh
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```<!---sh-->
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./prog [-tcksri] < file.c
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```
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## Try:
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```sh
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```<!---sh-->
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./try.sh
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```
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If you get really stuck, try:
|
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|
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```sh
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```<!---sh-->
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man ./tac.1
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```
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@@ -113,7 +113,7 @@ There is one (known) remaining problem with detection:
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* Comments between preprocessor hash and keyword are not replaced with whitespace;
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the following counts #include as two tokens, `#` and `include` (not as a reserved word):
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|
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```c
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```<!---c-->
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#/*this will not be counted*/include/*correctly*/<stdio.h>
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```
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@@ -128,14 +128,14 @@ counting words correctly absent `-k`.
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`tac` was run over all 366 previous IOCCC winning entries:
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```sh
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```<!---sh-->
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find ~/src/obc -type f -name \*.c | wc
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```
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The discrepancies found are documented and explained in the file
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[discrepancies.html](discrepancies.html).
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```sh
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```<!---sh-->
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find ~/src/obc -type f -a -name "*.c" | xargs ./spotcheck.sh ./prog | ./spotdiff.sh |
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grep -v keep | diff -bw - discrep* | grep "[<>] cl "
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```
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@@ -181,14 +181,14 @@ For instance, here is a simple token counter, useful in finding repeated long to
|
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frequency, or counting the references to identifiers, constants, or breadth of use of the
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language:
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```sh
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```<!---sh-->
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#!/usr/bin/env bash
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cat $* | ./prog -t | sort | uniq -c | sort -k1nr
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```
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And here is a C keyword frequency counter:
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```sh
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```<!---sh-->
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#!/usr/bin/env bash
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function iskeyword {
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awk 'BEGIN{f="c11";while(getline<f)k[$1]=0} {if($1 in k)k[$1]++}END{for(i in k)print k[i],i}'
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@@ -222,7 +222,7 @@ simple code below is a serviceable obfuscated C de-obfuscator in a _scripting
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language_. It really is this easy with `tac`:
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```sh
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```<!---sh-->
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#!/usr/bin/env bash
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script='
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BEGIN {
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@@ -342,7 +342,7 @@ which is neither complete (`#define`, `#ifndef`, `#undef` are missing
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-- yes, Virginia knows about `#define` omitted on purpose),
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nor correct (many more are added: `I`, `true`, `bool`, `compl`, ...):
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```sh
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```<!---sh-->
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(sed -n '1p' c11; sed -n '2,$p' ioccc.kw.freq | sort) | comm -3 - c11
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```
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@@ -383,7 +383,7 @@ NB: This is *not* a portability concern, the one string holds only printable ASC
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Thus:
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```sh
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```<!---sh-->
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cc -ansi -Wall -trigraphs -Wno-trigraphs -Wno-parentheses -Wno-empty-body -Wno-char-subscripts -Wno-pointer-sign -DU=O -DW=\"keywords\" -o prog prog.c
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```
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@@ -403,7 +403,7 @@ are not recognised when written as `-rs` in prose).
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Try:
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```sh
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```<!---sh-->
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./manpage.sh tac
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./manpage.sh -h
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+64
-64
@@ -141,13 +141,13 @@ Location: <a href="../../location.html#US">US</a> - <em>United States of America
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<!-- START: this line starts content for HTML phase 21 by: bin/pandoc-wrapper.sh via bin/md2html.sh -->
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<h2 id="to-build">To build:</h2>
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<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a> <span class="fu">make</span></span></code></pre></div>
|
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<pre class="<!---sh-->"><code> make</code></pre>
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<h2 id="to-use">To use:</h2>
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<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">./prog</span> <span class="pp">[-</span><span class="ss">tcksri</span><span class="pp">]</span> <span class="op"><</span> file.c</span></code></pre></div>
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<pre class="<!---sh-->"><code> ./prog [-tcksri] < file.c</code></pre>
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<h2 id="try">Try:</h2>
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<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">./try.sh</span></span></code></pre></div>
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<pre class="<!---sh-->"><code> ./try.sh</code></pre>
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<p>If you get really stuck, try:</p>
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<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a> <span class="fu">man</span> ./tac.1</span></code></pre></div>
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<pre class="<!---sh-->"><code> man ./tac.1</code></pre>
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<h2 id="judges-remarks">Judges’ remarks:</h2>
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<p>They say size isn’t everything, and in the case of IOCCC
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<a href="../../2018/iocccsize.c">iocccsize.c</a> that is saying something!
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@@ -228,17 +228,17 @@ quote consumes everything until the next quote</li>
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<li>Comments between preprocessor hash and keyword are not replaced with whitespace;
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the following counts #include as two tokens, <code>#</code> and <code>include</code> (not as a reserved word):</li>
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</ul>
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<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>
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<pre class="<!---c-->"><code> #/*this will not be counted*/include/*correctly*/<stdio.h></code></pre>
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<p>Fixing this properly hampers backwards compatibility in counting. This requires
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eliding comments during the translation phases (ISO 5.1.1.2, phase 3), and yet still
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counting words correctly absent <code>-k</code>.</p>
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<h3 id="backwards-compatibility">Backwards Compatibility:</h3>
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<p><code>tac</code> was run over all 366 previous IOCCC winning entries:</p>
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<div class="sourceCode" id="cb6"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a> <span class="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>
|
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<pre class="<!---sh-->"><code> find ~/src/obc -type f -name \*.c | wc</code></pre>
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<p>The discrepancies found are documented and explained in the file
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<a href="discrepancies.html">discrepancies.html</a>.</p>
|
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<div class="sourceCode" id="cb7"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a> <span class="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>
|
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<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>
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<pre class="<!---sh-->"><code> find ~/src/obc -type f -a -name "*.c" | xargs ./spotcheck.sh ./prog | ./spotdiff.sh |
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grep -v keep | diff -bw - discrep* | grep "[<>] cl "</code></pre>
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<p>In summary, there are only 6 unique entries out of 366 that have any variation
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in Rule 2 counts; in all cases, the differences are due to bugs within
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<code>iocccsize</code>, described in detail in the file
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@@ -273,14 +273,14 @@ This feature enables interesting analyses of C (and C++) code that’s hard to g
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<p>For instance, here is a simple token counter, useful in finding repeated long tokens, or operator
|
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frequency, or counting the references to identifiers, constants, or breadth of use of the
|
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language:</p>
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<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>
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<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>
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<pre class="<!---sh-->"><code> #!/usr/bin/env bash
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cat $* | ./prog -t | sort | uniq -c | sort -k1nr</code></pre>
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<p>And here is a C keyword frequency counter:</p>
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<div class="sourceCode" id="cb9"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb9-1"><a href="#cb9-1" aria-hidden="true" tabindex="-1"></a> <span class="co">#!/usr/bin/env bash</span></span>
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<span id="cb9-2"><a href="#cb9-2" aria-hidden="true" tabindex="-1"></a> <span class="kw">function</span><span class="fu"> iskeyword</span> <span class="kw">{</span></span>
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<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[$1]++}END{for(i in k)print k[i],i}'</span></span>
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<span id="cb9-4"><a href="#cb9-4" aria-hidden="true" tabindex="-1"></a> <span class="kw">}</span></span>
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<span id="cb9-5"><a href="#cb9-5" aria-hidden="true" tabindex="-1"></a> <span class="fu">cat</span> <span class="va">$*</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>
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<pre class="<!---sh-->"><code> #!/usr/bin/env bash
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function iskeyword {
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awk 'BEGIN{f="c11";while(getline<f)k[$1]=0} {if($1 in k)k[$1]++}END{for(i in k)print k[i],i}'
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}
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cat $* | ./prog -t | iskeyword | sort -k1nr</code></pre>
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<p>This script was used to “optimize” the reserved word order so the most frequent IOCCC
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winning entry keywords are checked first.</p>
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<p>An interesting aside: as might be expected, obfuscation has changed the frequency of
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@@ -299,47 +299,47 @@ handful of simple rules (and another use of the external keyword file). A more
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refined version of this is included in the file <a href="unob.sh">unob.sh</a>, but the
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simple code below is a serviceable obfuscated C de-obfuscator in a <em>scripting
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language</em>. It really is this easy with <code>tac</code>:</p>
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<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>
|
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<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>
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<span id="cb11-3"><a href="#cb11-3" aria-hidden="true" tabindex="-1"></a><span class="st"> BEGIN {</span></span>
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<span id="cb11-4"><a href="#cb11-4" aria-hidden="true" tabindex="-1"></a><span class="st"> last=nl="\n";</span></span>
|
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<span id="cb11-5"><a href="#cb11-5" aria-hidden="true" tabindex="-1"></a><span class="st"> f="c11"; while(getline <f > 0) kw[$0]++; close(f);</span></span>
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<span id="cb11-6"><a href="#cb11-6" aria-hidden="true" tabindex="-1"></a><span class="st"> }</span></span>
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<span id="cb11-7"><a href="#cb11-7" aria-hidden="true" tabindex="-1"></a></span>
|
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<span id="cb11-8"><a href="#cb11-8" aria-hidden="true" tabindex="-1"></a><span class="st"> function iskw(a) { return a in kw }</span></span>
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<span id="cb11-9"><a href="#cb11-9" aria-hidden="true" tabindex="-1"></a><span class="st"> function indent(a) { return sprintf("%*s", n*3, " ") }</span></span>
|
||||
<span id="cb11-10"><a href="#cb11-10" aria-hidden="true" tabindex="-1"></a><span class="st"> function newline() { if (!infor && last != nl) printf last=nl; }</span></span>
|
||||
<span id="cb11-11"><a href="#cb11-11" aria-hidden="true" tabindex="-1"></a><span class="st"> function show(a) {</span></span>
|
||||
<span id="cb11-12"><a href="#cb11-12" aria-hidden="true" tabindex="-1"></a><span class="st"> if (last==nl) printf "%s", indent()</span></span>
|
||||
<span id="cb11-13"><a href="#cb11-13" aria-hidden="true" tabindex="-1"></a><span class="st"> printf "%s%s", space(), a</span></span>
|
||||
<span id="cb11-14"><a href="#cb11-14" aria-hidden="true" tabindex="-1"></a><span class="st"> last=a</span></span>
|
||||
<span id="cb11-15"><a href="#cb11-15" aria-hidden="true" tabindex="-1"></a><span class="st"> }</span></span>
|
||||
<span id="cb11-16"><a href="#cb11-16" aria-hidden="true" tabindex="-1"></a><span class="st"> function space() {</span></span>
|
||||
<span id="cb11-17"><a href="#cb11-17" aria-hidden="true" tabindex="-1"></a><span class="st"> return iskw(last) ||</span></span>
|
||||
<span id="cb11-18"><a href="#cb11-18" aria-hidden="true" tabindex="-1"></a><span class="st"> (last ~ /[A-Za-z0-9_+-\/%^[&\]\)=:<>;]$/ && $0 !~ /[:;()\[\],]/) ? " " : ""</span></span>
|
||||
<span id="cb11-19"><a href="#cb11-19" aria-hidden="true" tabindex="-1"></a><span class="st"> }</span></span>
|
||||
<span id="cb11-20"><a href="#cb11-20" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb11-21"><a href="#cb11-21" aria-hidden="true" tabindex="-1"></a><span class="st"> /^\(/ { ++paren }</span></span>
|
||||
<span id="cb11-22"><a href="#cb11-22" aria-hidden="true" tabindex="-1"></a><span class="st"> /^\)/ { --paren }</span></span>
|
||||
<span id="cb11-23"><a href="#cb11-23" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb11-24"><a href="#cb11-24" aria-hidden="true" tabindex="-1"></a><span class="st"> /^for/ { newline(); infor=1 }</span></span>
|
||||
<span id="cb11-25"><a href="#cb11-25" aria-hidden="true" tabindex="-1"></a><span class="st"> infor && /^;/ { ++infor; show($0 " "); next }</span></span>
|
||||
<span id="cb11-26"><a href="#cb11-26" aria-hidden="true" tabindex="-1"></a><span class="st"> infor==1 && /^:/ { ++infor }</span></span>
|
||||
<span id="cb11-27"><a href="#cb11-27" aria-hidden="true" tabindex="-1"></a><span class="st"> infor>1 && paren==0 { infor=0 }</span></span>
|
||||
<span id="cb11-28"><a href="#cb11-28" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb11-29"><a href="#cb11-29" aria-hidden="true" tabindex="-1"></a><span class="st"> /^\?/ { tern++; n++; newline(); show($0 " "); next }</span></span>
|
||||
<span id="cb11-30"><a href="#cb11-30" aria-hidden="true" tabindex="-1"></a><span class="st"> tern && /^:/ { newline(); show($0); --tern; --n; next }</span></span>
|
||||
<span id="cb11-31"><a href="#cb11-31" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb11-32"><a href="#cb11-32" aria-hidden="true" tabindex="-1"></a><span class="st"> /^#/ { newline(); show($0); newline(); next }</span></span>
|
||||
<span id="cb11-33"><a href="#cb11-33" aria-hidden="true" tabindex="-1"></a><span class="st"> /^;/ { show($0); newline(); next }</span></span>
|
||||
<span id="cb11-34"><a href="#cb11-34" aria-hidden="true" tabindex="-1"></a><span class="st"> /^{/ { show($0); ++n; newline(); next }</span></span>
|
||||
<span id="cb11-35"><a href="#cb11-35" aria-hidden="true" tabindex="-1"></a><span class="st"> /^}/ { n--; newline(); show($0); newline(); next }</span></span>
|
||||
<span id="cb11-36"><a href="#cb11-36" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb11-37"><a href="#cb11-37" aria-hidden="true" tabindex="-1"></a><span class="st"> { show($0) }</span></span>
|
||||
<span id="cb11-38"><a href="#cb11-38" aria-hidden="true" tabindex="-1"></a><span class="st"> '</span></span>
|
||||
<span id="cb11-39"><a href="#cb11-39" aria-hidden="true" tabindex="-1"></a> <span class="fu">cat</span> <span class="va">$*</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>
|
||||
<pre class="<!---sh-->"><code> #!/usr/bin/env bash
|
||||
script='
|
||||
BEGIN {
|
||||
last=nl="\n";
|
||||
f="c11"; while(getline <f > 0) kw[$0]++; close(f);
|
||||
}
|
||||
|
||||
function iskw(a) { return a in kw }
|
||||
function indent(a) { return sprintf("%*s", n*3, " ") }
|
||||
function newline() { if (!infor && last != nl) printf last=nl; }
|
||||
function show(a) {
|
||||
if (last==nl) printf "%s", indent()
|
||||
printf "%s%s", space(), a
|
||||
last=a
|
||||
}
|
||||
function space() {
|
||||
return iskw(last) ||
|
||||
(last ~ /[A-Za-z0-9_+-\/%^[&\]\)=:<>;]$/ && $0 !~ /[:;()\[\],]/) ? " " : ""
|
||||
}
|
||||
|
||||
/^\(/ { ++paren }
|
||||
/^\)/ { --paren }
|
||||
|
||||
/^for/ { newline(); infor=1 }
|
||||
infor && /^;/ { ++infor; show($0 " "); next }
|
||||
infor==1 && /^:/ { ++infor }
|
||||
infor>1 && paren==0 { infor=0 }
|
||||
|
||||
/^\?/ { tern++; n++; newline(); show($0 " "); next }
|
||||
tern && /^:/ { newline(); show($0); --tern; --n; next }
|
||||
|
||||
/^#/ { newline(); show($0); newline(); next }
|
||||
/^;/ { show($0); newline(); next }
|
||||
/^{/ { show($0); ++n; newline(); next }
|
||||
/^}/ { n--; newline(); show($0); newline(); next }
|
||||
|
||||
{ show($0) }
|
||||
'
|
||||
cat $* | sed 's/#include/##include/' | cpp -E -trigraphs |
|
||||
sed 's/^# .*$//' | sed 's/^#//' |
|
||||
./prog -t | awk "$script"</code></pre>
|
||||
<h3 id="on-the-question-of-obfuscation">On the question of obfuscation:</h3>
|
||||
<ul>
|
||||
<li><p>I assume you noticed the <a href="https://www.youtube.com/watch?v=fUspLVStPbk&start=53" title="Meaning of Life">braces</a>?</p>
|
||||
@@ -401,7 +401,7 @@ the IOJCC trash can.</p>
|
||||
which is neither complete (<code>#define</code>, <code>#ifndef</code>, <code>#undef</code> are missing
|
||||
– yes, Virginia knows about <code>#define</code> omitted on purpose),
|
||||
nor correct (many more are added: <code>I</code>, <code>true</code>, <code>bool</code>, <code>compl</code>, …):</p>
|
||||
<div class="sourceCode" id="cb12"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb12-1"><a href="#cb12-1" aria-hidden="true" tabindex="-1"></a> <span class="kw">(</span><span class="fu">sed</span> <span class="at">-n</span> <span class="st">'1p'</span> c11<span class="kw">;</span> <span class="fu">sed</span> <span class="at">-n</span> <span class="st">'2,$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>
|
||||
<pre class="<!---sh-->"><code> (sed -n '1p' c11; sed -n '2,$p' ioccc.kw.freq | sort) | comm -3 - c11</code></pre>
|
||||
<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,
|
||||
@@ -429,7 +429,7 @@ for obfuscation. Thus <code>-trigraphs -Wno-trigraphs</code> (which is also humo
|
||||
<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="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="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>
|
||||
<pre class="<!---sh-->"><code> cc -ansi -Wall -trigraphs -Wno-trigraphs -Wno-parentheses -Wno-empty-body -Wno-char-subscripts -Wno-pointer-sign -DU=O -DW=\"keywords\" -o prog prog.c</code></pre>
|
||||
<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,
|
||||
@@ -442,12 +442,12 @@ 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="cb14"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb14-1"><a href="#cb14-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">./manpage.sh</span> tac</span>
|
||||
<span id="cb14-2"><a href="#cb14-2" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb14-3"><a href="#cb14-3" aria-hidden="true" tabindex="-1"></a> <span class="ex">./manpage.sh</span> <span class="at">-h</span></span>
|
||||
<span id="cb14-4"><a href="#cb14-4" 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="cb14-5"><a href="#cb14-5" 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="cb14-6"><a href="#cb14-6" 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>
|
||||
<pre class="<!---sh-->"><code> ./manpage.sh tac
|
||||
|
||||
./manpage.sh -h
|
||||
./manpage.sh -h | ./manpage.sh
|
||||
./manpage.sh -h | ./manpage.sh -R | less
|
||||
./manpage.sh -h | ./manpage.sh -P | lpr</code></pre>
|
||||
<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>
|
||||
<!--
|
||||
|
||||
Reference in new issue
Block a user