If your class doesn't get inherited, you can do it both ways using: 
sub function
{
    # Allow calling as a subroutine or class method
    shift if ($_[0] eq __PACKAGE__);

    ...
}

[download]
If you're doing inheritance, you'd need something more involved, but you get the idea.
Remember: There's always one more bug.

In reply to Re^2: Mixing OO & non OO code in a module by jdhedden
in thread Mixing OO & non OO code in a module by spatterson

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