use strict;
my $str = 'test-app.az1.qprod.net
jwm12535.s1.az1.qprod.net
testing2.eng.qops.net
kvm1.c1.co1.qprod.net
bs1.co1.qprod.net
staging.s1.co1.qprod.net
staging.co1.qprod.net
server.s1.co1.qprod.net
s1.co1.qprod.net
server2.co1.qprod.net
s.co1.qprod.net
testing.az1.qprod.net
something1.eng.qops.net';
my $regex = qr/^([a-z-]+|[\w]+)\.(((?!\.s1).+\.)?(co1|az1|ut1|eng|au1)\.(qprod|qops)\.net)$/mp;
if ( $str =~ /$regex/g ) {
print "Whole match is ${^MATCH} and its start/end positions can be obtained via \$-[0] and \$+[0]\n";
# print "Capture Group 1 is $1 and its start/end positions can be obtained via \$-[1] and \$+[1]\n";
# print "Capture Group 2 is $2 ... and so on\n";
}
# ${^POSTMATCH} and ${^PREMATCH} are also available with the use of '/p'
# Named capture groups can be called via $+{name}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Perl, please visit: http://perldoc.perl.org/perlre.html