texi2html: Fix the parent detection of the TOC for unnumbered sections

Instead of using the section number I'm now using the ID of the sections
to properly detect parents of the current page even if we only have
@unnumbered sections (as compared to @chapter). This fixes the snippets
page.

diff --git a/lilypond-texi2html.init b/lilypond-texi2html.init
index 2388c5cdb909e7441b3ad24dd168a890ce8de0a7..e2d69c7390df2b6d11eabea8fa2a4a00d0e15766 100644 (file)
--- a/lilypond-texi2html.init
+++ b/lilypond-texi2html.init
@@ -583,7 +583,7 @@ sub generate_ly_toc_entries($$$$)
   return() if (not defined($element) or exists($element->{'index_page'}));
   my @result = ();
   my $level = $element->{'toc_level'};
-  my $is_parent_of_current = $element->{'number'} && $element_path->{$element->{'number'}};
+  my $is_parent_of_current = $element->{'id'} && $element_path->{$element->{'id'}};
   my $print_children = ( ($level < $maxlevel) or $is_parent_of_current );
   my $ind = '  ' x $level;
   my $this_css_class = $is_parent_of_current ? " class=\"toc_current\"" : "";
@@ -622,13 +622,13 @@ sub lilypond_generate_page_toc_body($)
     my $element = shift;
     my $current_element = $element;
     my %parentelements;
-    $parentelements{$element->{'number'}} = 1;
+    $parentelements{$element->{'id'}} = 1;
     # Find the path to the current element
     while ( defined($current_element->{'sectionup'}) and
            ($current_element->{'sectionup'} ne $current_element) )
     {
-      $parentelements{$current_element->{'sectionup'}->{'number'}} = 1
-              if ($current_element->{'sectionup'}->{'number'} ne '');
+      $parentelements{$current_element->{'sectionup'}->{'id'}} = 1
+              if ($current_element->{'sectionup'}->{'id'} ne '');
       $current_element = $current_element->{'sectionup'};
     }
     return () if not defined($current_element);