sub _check_and_extract_name {
    my ($file, $verbose, $root_rx) = @_;

    # check extension or executable flag
    # this involves testing the .bat extension on Win32!
    unless(-f $file && -T _ && ($file =~ /\.(pod|pm|plx?)\z/i || -x _ )) {
      return undef;
    }

	return undef unless contains_pod($file,$verbose);

    # ... proceed with adding the accepted file to the lost of pods ...