mall_ins

User-Friendly Wrappers

To solve a different problem on my day job, I wrote a package called Mall::Instructor. Each instructor on the treatment mall has a profile. To get an instructor's profile, I offer the user these choices:

Output Options: On screen (STDOUT)? Or print to file?
Selection Options: All instructors? Or just individually named instructors?

    my $m1 = Mall::Instructor->new();

    $m1->display_profile('Adams', 'Jones'); # selected data records
    $m1->display_profile();                 # all data records

    $m1->write_profile('Adams', 'Jones');   # selected data records
    $m1->write_profile();                   # all data records

How many different cases do I have to account for?