use strict;
use warnings;

sub check_condition {
		my( $inst, $cond, $ors ) = @_;
		OR: for ( @$ors ) {
				$inst !~ /$_/ and next OR for @$_;
				return 1;
		}
		return 0;
}

sub check {
		my( $inst, $list ) = @_;
		return grep { check_condition $inst, $_, $list->{$_} } keys %$list;
}

my %conditions = map {
		/^(.*?)=(.*)$/; $1 => [ map { [ split /,/ ] } split /\|\|/, $2 ];
} <DATA>;

my @instances = qw( IDL_MANAGEMENT_101001 IDL_NORTH_TX IDL_SOUTH VIDL_NORTH ABX_PERL );

print "$_:", join(",",check( $_, \%conditions )), "\n" for @instances;

__DATA__
MANAGEMENT=IDL
NORTH=IDL,NORTHERN||VIDL,NORTH||IDL,NORTH
SOUTH=IDL,SOUTHERN||CIDL,SOUTH