my $nr_s = 0;
my $level = $map->[4];
my $idx = $map->[3];
- if (defined $irt) {
- my $irt_map = $mapping->{$irt};
+ my $irt_map = $mapping->{$irt} if defined $irt;
+ if (defined $irt_map) {
my $siblings = $irt_map->[0];
$nr_s = scalar(@$siblings) - 1;
$rv .= $pad . $irt_map->[1];