(exists $args{plugin_instance} ? "-$args{plugin_instance}" : '(?:-[^/]+)?') .
(exists $args{type} ? "/$args{type}" : '/[^/-]+') .
(exists $args{type_instance} ? "-$args{type_instance}" : '(?:-[^/]+)?');
(exists $args{plugin_instance} ? "-$args{plugin_instance}" : '(?:-[^/]+)?') .
(exists $args{type} ? "/$args{type}" : '/[^/-]+') .
(exists $args{type_instance} ? "-$args{type_instance}" : '(?:-[^/]+)?');