($scheme, $driver, $attr_string, $attr_hash, $driver_dsn) = DBI->parse_dsn("DBI:MyDriver(RaiseError=>1):db=test;port=42");
$scheme      = 'dbi';
$driver      = 'MyDriver';
$attr_string = 'RaiseError=>1';
$attr_hash   = { 'RaiseError' => '1' };
$driver_dsn  = 'db=test;port=42';