note
jonadab
<p>You did better than
<a href="http://developers.slashdot.org/comments.pl?sid=132907&cid=11099711">I did</a> (_especially_ with optimizing sub a, and with
getting rid of the Socket constants, which I knew was
possible but didn't do), although you did miss a couple of opportunities...
</p><ul>
<li>As someone else also noted, <code>undef$/</code>,
while it saves one stroke over the original, is
still suboptimal. I have <code>$/=$3</code>.
A related situation occurs later with
<code>undef$k{$p}</code>, only there $3 might
be defined, so I have <code>$k{$p}=$7</code> in
that case. $7 will always be undef in molester.
<strong>Update: your updated version does
this in the first of the two cases.</strong>
</li>
<li><code>open F,'>',$_[1]</code> is slightly suboptimal.
I have <code>open F,">$_[1]"</code>, saving
one stroke. I saved another stroke doing the
same thing when it's opened for reading.
<strong>Update: your updated version does
this too.</strong>
</li>
<li>Because sub a is declared before sub t, you
can dispense with the parens when t calls a,
saving two characters: <code>(connect X,a$w)</code>
<strong>Update: your updated version does
even better than this.</strong>
</li>
<li>My /. post doesn't _demonstrate_ this, but it mentions
it: converting the if/else isn't as fruitful as I'd
hoped, due to the need to use <code>and</code> after
the print (for precedence reasons), but it does shave
off a couple of strokes.
<strong>Update: I believe this is still good for a
couple of strokes.</strong></li>
<li>another update: I think we can shave one more
stroke by using a statement modifier in sub g.
This will
cause F to be closed whether it's successfully
opened or not, but that should be okay I _think_.
</li>
<li>Yet Another Update: But I lost that character
again fixing what I think is a bug in your regex
optimization, having to do with the slashes that
separate commands.
</li>
</ul>
<p>We also both missed the argumentless-close trick that
someone else pointed out, although I would have to
test that one to be sure it doesn't close the socket
also (or that doing so doesn't change the operation
of the script). Can someone confirm which close
statements need their arguments and, for that
matter, whether it's possible to eliminate any
of the close statements altogether without
breaking something?</p>
<p>So I threw out my version and worked from yours
<strong>update: again</strong>, and
this is what I now have, weighing in at
508 bytes not counting line breaks
(522 bytes with a full ASCII CRLF ending
every line but the last, or 515 with Unix-style
one-character newlines):
</p>
<code>
$/=$_;$(=shift;$a=shift;i(shift);socket S,2,1,6;bind S,a($a);listen
S,5;while(@ARGV&&($_="$( $a f".shift)||accept(C,S)&&($_=<C>)&&close
C){m!^(.*?) (.*?) ([e-i])([^/]*)./!s&&$(eq$1&&&$3($2,$4,$')}sub f{t($_,@_)for
keys%k}sub a{pop=~/:/;pack'CxnC4x8',2,$',split'\.',$`}sub i{$k{$_[0]}=1}sub
g{t($_[0],$a,"e$_[1]",<F>)if open F,"<$_[1]";close F}sub h{t($_[0],$_,'i')for
keys%k}sub t{socket X,2,1,6;(connect X,a($w=shift))?print
X"$( $_[0] $_[1]/$_[2]"and close X:$k{$w}=$7}sub
e{open F,">$_[1]";print F $_[2];close F}
</code>
<p>Note that this code is completely, utterly untested.</p>
<!-- Node text goes above. Div tags should contain sig only -->
<div class="pmsig"><div class="pmsig-230012">
<hr />
"In adjectives, with the addition of inflectional endings, a changeable long vowel (Qamets or Tsere) in an open, propretonic syllable will reduce to Vocal Shewa. This type of change occurs when the open, pretonic syllable of the masculine singular adjective becomes propretonic with the addition of inflectional endings."
— Pratico & Van Pelt, BBHG, p68
</div></div>
415203
415348