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User since: Mar 03, 2004 at 09:25 UTC
Last here: Jul 09, 2014 at 19:41 UTC (2 days ago)
Experience: 4092
Level: Priest (14)
Writeups: 437
Location:The Netherlands
User's localtime: Jul 11, 2014 at 16:31 CEST
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My nodes that made it to the front page

Date Category Title
Jan 2013 Meditations Hungarian notation, kind of
Sep 2010 SoPW A matter of style: how to perform a simple action based on a simple condition?
Feb 2007 SoPW UTF-8 text files with Byte Order Mark
Jun 2006 SoPW How is perl able to handle the null byte?
Sep 2004 Meditations A "but" operator.
Sep 2004 SoPW Extract subroutines from a Perl s‎crip‎t. OR: "Only perl can parse Perl." But can it help me to do so?
Aug 2004 and onward Meditations / Regex tutorials Regexp do's and don'ts
Jul 2004 Meditations HTML - separating design and logic
May 2004 SoPW Change the parent of an instance
Mar 2004 SoPW So, now what are taints?
Mar 2004 SoPW See if a certain package has a certain sub, without executing that sub

 

Ways to find out if $scalar is numeric

tye and me having a little fun in the chatterbox.

[muba]: my $is_string = ($scalar ^ $scalar) eq ("$scalar" ^ "$scalar");
[tye]: my $isNumber = $scalar ^ '00' eq $scalar;
[tye]: my $isNumber = do { my $warn= 0; local $SIG{__WARN__}= sub { $warn= 1 }; use warnings; $scalar^=''; $warn };
tye]: my $isNumber = ( $scalar ^ "$scalar" ) =~ /\d/;