eval sets $@ to an error message if the eval'ed block generated an error, and clears $@ otherwise. The eval {...}; if ($@) {...} construct is Perl's version of try and catch.
Comment on Re: This is a small bug in TableMatrix.pm, right??
OK, I see, but the statment $data = $w->GetSelection()
does result in $@ being set inside the eval if there is no selection available. But GetSelection still returns and so the eval executes fine and resets $@ to empty. This must mean that GetSelection() is doing some sort of error trapping of it's own, right?<\p>