-sub thread_adj_level {
- my ($state, $level) = @_;
-
- my $max = $state->{cur_level};
- if ($level <= 0) {
- return '' if $max == 0; # flat output
-
- # reset existing lists
- my $x = $max > 1 ? ('</ul></li>' x ($max - 1)) : '';
- $state->{fh}->write($x . '</ul>');
- $state->{cur_level} = 0;
- return '';
- }
- if ($level == $max) { # continue existing list
- $state->{fh}->write('<li>');
- } elsif ($level < $max) {
- my $x = $max > 1 ? ('</ul></li>' x ($max - $level)) : '';
- $state->{fh}->write($x .= '<li>');
- $state->{cur_level} = $level;
- } else { # ($level > $max) # start a new level
- $state->{cur_level} = $level;
- $state->{fh}->write(($max ? '<li>' : '') . '<ul><li>');
- }
- '</li>';
-}
-
-sub ghost_flush {
- my ($state, $upfx, $mid, $level) = @_;
- my $end = '<pre>'. ghost_parent($upfx, $mid) . '</pre>';
- $state->{fh}->write($end .= thread_adj_level($state, $level));
-}
-
-sub __thread_entry {