If you wanted to use OO then you could do this 
package Err;
    
sub new
{
    return bless
    {
    title => 'Really Bad Error',
    msg => 'Unknown',
    @_
    };
}
            
sub err
{
    my %args = ( %{shift()}, @_ );
    print "Error: $args{title}: $args{msg}\n";
}

###########

package MyModule;

$myerror = Err::new( title =>'My new default title for MyModule.pm',
             msg => 'MyModules generic error message' );

$myerror->err();
$myerror->err(title=>'Oops',msg=>'something went wrong');

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I was wondering whether you could do something using the __PACKAGE__ variable and a hash in the Err package, but I couldn't think of a way of reading your caller's package. I expect there is a way though. Then the err() function could read the callers package and read the default strings from a hash which the calling package had assigned.

In reply to Re: Handling cascading defaults by ncw
in thread Handling cascading defaults by markjugg

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