Re: Problem recording the first digits into a scalar

[Flemming Greve Skovengaard]

Yes, your code is more readable and fail safe.
Also I was not aware of the performance penalty in using $&, so thanks
for teaching me something too. I am still learning Perl.
Wiggins d Anconia wrote:


This should give you what you need:

my $digit = 0;
foreach (@commands) {
        /^\d+/;
        print FILE "DIGIT = $&\n";
}


While simple, use of $& takes a performance penalty and a readability
penalty....
From perldoc perlvar:
"The use of this variable anywhere in a program imposes a considerable
performance penalty on all regular expression matches.  See the BUGS
manpage."
http://danconia.org



[snip]

--
Flemming Greve Skovengaard            The killer's breed or the Demon's seed,
a.k.a Greven, TuxPower                The glamour, the fortune, the pain,
<[EMAIL PROTECTED]>           Go to war again, blood is freedom's stain,
4168.08 BogoMIPS                      Don't you pray for my soul anymore.
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
<http://learn.perl.org/> <http://learn.perl.org/first-response>