I'm working on a CGI script which will, eventually, end up sending an email to several people. I'm attempting to make use of the e-mail validation script that is on page 219 of CGI Programming with Perl.

When I try to run this script from the web, I receive the following error: 'Use of uninitialized value in substitution (s///) at mail.cgi line 218.'

Lines 217 and 218 are:

my $addr_to_check = shift;
$addr_to_check =~ s/("(?:[^"\\]|\\.)*"|[^\t "]*)[ \t]*/$1/g;

[download]

I'm not too good at regexes (in fact, I'm terrible at them) and any help is appreciated.

Thanks in advance,
Jeremiah

In reply to CGI + regex help by peschkaj

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