thanks to Neil Soiffer for spotting the annotations Fatal for failed-…

…to-parse inputs
brucemiller · Jul 9, 2020 · 1383ff2 · 1383ff2
1 parent eb0ac03
commit 1383ff2
Showing 1 changed file with 7 additions and 4 deletions.
diff --git a/lib/LaTeXML/Post/MathML/Presentation.pm b/lib/LaTeXML/Post/MathML/Presentation.pm
@@ -103,10 +103,13 @@ sub addAccessibilityAnnotations {
   # Part I: Top-down. Recover the meaning of a subtree as an accessible annotation
   my ($self, $node, $sourcenode, $currentnode) = @_;
   my $meaning;
-  my $name                 = getQName($node);
-  my $source_name          = getQName($sourcenode);
-  my $src_parent           = $sourcenode->parentNode;
-  my $src_parent_name      = getQName($src_parent);
+  my $name            = getQName($node);
+  my $source_name     = getQName($sourcenode);
+  my $src_parent      = $sourcenode->parentNode;
+  my $src_parent_name = getQName($src_parent);
+  if ($source_name eq 'ltx:XMath' or $src_parent_name eq 'ltx:XMath') {
+    # likely this formula failed to parse, we have no business adding annotations here
+    return; }
   my $src_grandparent      = $src_parent->parentNode;
   my $src_grandparent_name = getQName($src_grandparent);
   my $current_node_name    = getQName($currentnode);