SOURCE (COMPILED & DEPARSED): my $x;
$x = 0;
while ($x < 8) {
    my $f = fact($x);
    print "factorial($x)=$f\n";
}
continue {
    ++$x
}
sub fact {
    $_[0] <= 0 and return 1;
    return $_[0] * fact($_[0] - 1);
}