----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, December 30, 2002 11:36 PM
Subject: Regexp with //x
>
> Can anyone tell me where to find out what the x does when used at the end
> of a pattern match? (i.e. $tag =~ /abc/x) Everywhere I've looked gives
> me the helpful information that it means "Use extended regular
> expressions," but I've yet to find a definition of what that *means*.
It allows you to add comments (ignore white space) to your regex
(not sure if it does more than that)...
#!/usr/bin/perl -w
use strict;
my $string='TeSt';
print $string,"\n";
$string=~s/
([A-Z]) # grab all letters from A to Z (caps)
/
lc($1) # replace it with lower case version
/egx; # Do it globally and allow comments
# and evaluate it to make lc() work
print $string,"\n";
%perl test.cgi
TeSt
test
%
Shawn
>
> Thanks...
>
>
>
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