Thanks for your answer. I don't want the comments, I actually want to get rid of them. I tested with Config::General and is interesting, but the problem is that when I have the sub-structures, the lib just put everything together and I can't split or find the parents of each key-value... That's my test-code:

#!/usr/bin/perl
use warnings;
use strict;
use Config::General;

my $conf = Config::General->new("fh.cfg");
my %config = $conf->getall;
my @myarray = (); 
while( my( $key, $value ) = each %config ){
    print "$key: $value\n";
    if (ref($value) eq 'ARRAY'){
        @myarray = @$value;
        foreach (@myarray) {
            print "$_\n";
        }   
    }   
}
[download]

And here is the output repeated (because "request_snapshot" appears many times in my config):

(...)
status_interval: 30;
exchange_is_active_time_end: "16:00";
dropout_detection_initial_interval_secs: 600;
request_snapshot: ARRAY(0xce97a8)
false;
false;
false;
false;
(...)
[download]