This is Perl module Sub::Attribute. INSTALLATION Sub::Attribute installation is straightforward. If your CPAN shell is set up, you should just be able to do $ cpan Sub::Attribute Download it, unpack it, then build it as per the usual: $ perl Makefile.PL $ make && make test Then install it: $ make install DOCUMENTATION Sub::Attribute documentation is available as in POD. So you can do: $ perldoc Sub::Attribute to read the documentation online with your favorite pager. Goro Fuji (gfx)