Is there some reason why you couldn't just have your module
export the variables you'd like to expose to it's users? :)
package MyModule;
use vars qw(@ISA @EXPORT_OK $name $street $city $zip);
BEGIN {
@ISA = qw(Exporter);
@EXPORT_OK = qw($name $street $city $zip);
require Exporter;
}
my $callback;
sub set_callback(&) { $callback = shift }
sub exec_callback {
local(($name, $street, $city, $zip) = @_);
$callback->();
}
package Main;
BEGIN { import MyModule qw($name $street $city $zip) }
MyModule::set_callback { $name =~ /^[a-zA-Z\s]+$/ and $zip =~/^\d+$/ }
+;
MyModule::exec_callback('Bob', '600 1st St.', 'Beverly Hills', '90210'
+)
and print "Record is valid.\n";
Once MyModule was moved into it's own file, you could
replace the ugly
BEGIN { import ... } line
with just
use MyModule qw($name $street $city $zip).