grouping in regex

[punit jain]

Hi,

I am doing grouping but seeing some weird behavior :-

the strings in a file are like :-
AccessModes =
(18,Mail,POP,IMAP,PWD,WebMail,WebSite,Relay,Mobile,FTP,MAPI,TLS,LDAP,WebCAL);
....
...
.
multiple lines

I am seeing which lines have both POP and Webmail as below :-

if( $line =~ /AccessModes\s*=\s*.*(WebMail)*.*(POP).*(WebMail)*.*/ ) {
                            if(defined $2) {
                                print "$2 $1"."$line"."\n";
                            }
                        }


However I get these below :-

  POPUse of uninitialized value in concatenation (.) or string at
test.plline 283, <GEN85> line 2.
  POPUse of uninitialized value in concatenation (.) or string at
test.plline 283, <GEN86> line 2.
  POPUse of uninitialized value in concatenation (.) or string at
test.plline 283, <GEN87> line 2.

Any clue why ?

Regards.