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=item separator

Separator used to parse permission strings. Defaults to C<,>.

=back

=cut

sub new {
	my ($class, $self, $type, %args);
	
	$class = shift;

	%args = @_;
	
	$self = {separator => $args{separator} || ',',
			 permissions => {},
			 uid => $args{uid},
			 volatile => 0};
	
	bless $self, $class;
	
	if (exists $args{permissions}) {
		$type = ref($args{permissions});

		if ($type eq 'ARRAY') {
			for my $perm (@{$args{permissions}}) {
				$self->{permissions}->{$perm} = 1;
			}
		}
		elsif ($type eq 'CODE') {
			$self->{volatile} = 1;
			$self->{sub} = $args{permissions};
		}
		elsif (defined $args{permissions}) {
			my @perms;

			for my $perm (split(/$self->{separator}/, $args{permissions})) {
				$perm =~ s/^\s+//;
				$perm =~ s/\s+$//;
				next unless length($perm);