sub manal {
  my $htree = shift;
  my $rul   = shift;
  my $level = shift || 1;
  my $hist  = (split /\n/, $htree->data)[0];
  my $str   = (split /\|/, $hist)[0];
  my ($k, $v);

  $hist = "|$hist";
  &log("entering manal L$level with history: $hist\n");

  while(($k,$v) = each %$rul) {
    my @out = @{&proccode($str,$v)}

    for my $h (@out) {
      &log("debug: (out: @out - $h)/$str/$hist/$k\n");
      &manal($htree->append("$h$hist\n$k"),$rul,$level+1) if($hist !~ /\|$h\|/);
 
    }
  }
  &log("exiting manal L$level for STR: $str\n");
}