sub GetFile2
...
sub isAbsPath

##</code><code>##

sub isAbsPath
{
  @_ or return 0;
  my $P = shift;
  defined $P or return 0;
  length($P) or return 0;
  $P = uc(substr(Trim($P), 0, 3));
  my $c = vec($P, 0, 8);
  return 1 if ($c == 47 || $c == 92);
  return 0 if ($c < 65 || $c > 90);
  return 0 if (vec($P, 1, 8) != 58);
  $c = vec($P, 2, 8);
  return 1 if ($c == 47 || $c == 92);
  return 0;
}

##</code><code>##

sub isAbsPath {
    my $path = shift;
    return 0 unless defined $path;
    return $path =~ /^([A-Z]:|[\/\\])/ ? 1 : 0;
}