That's because my code uses shift to get the first argument to the subroutine. If you take it out of the subroutine, you'll need to replace that shift with the variable that contains the value you want to split.

First of all; thank you very much for your help. I did what you said and its very close but doing some weird stuff.

Here's what I have:
#!/usr/bin/perl

$work = "/var/tmp/work";
$input = "$work/domainlist.csv";

open (IN,"$input");
open (OUT,">domainlist.rules");
while (<IN>) {
  chomp();
  $domain = $_;

    $dns = join '|', '', ( map { sprintf('%02d',length $_), $_ } split /\./, $domain ), '00', '';
      print "$dns\n";
}



What I get is something like this:




|00|foobar|09|foodomain|04|com

|00|www|06|foobar|12|foobardomain|03|cc




If puts the zeros on the front instead of the end and doesn't give a count

then it counts the next sections correctly

then it always adds an extra count for the last part, maybe its counting a space or something

The code as you've quoted it works fine when I give it a hardcoded domain:

$domain = 'foobar.foodomain.com';
$dns = join '|', '', ( map { sprintf('%02d',length $_), $_ } split /\.
+/, $domain ), '00', '';
print "$dns\n";
# prints: |06|foobar|09|foodomain|03|com|00|
[download]

So I'd say you need to look at your input.

Aaron B.
Available for small or large Perl jobs; see my home node.