[sf-perl] A bit of an eye opener with capture variables

Andy Lester andy at petdance.com
Thu Aug 3 13:13:46 PDT 2006

On Aug 3, 2006, at 3:11 PM, David Alban wrote:

> I've always thought that anything that didn't get matched was made to
> be undef.  I was very surprised to learn otherwise:

Right, I've made that assumption, too, and it makes things very sad.

You always want to check for the truth of the match operator:

     if ( $str =~ /(something)/ ) {
         ... then I can use $1;

Andy Lester => andy at petdance.com => www.petdance.com => AIM:petdance

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