blocks.c in commonmarker-0.23.2

- old
+ new

@@ -466,11 +466,10 @@
   cmark_event_type ev_type;
 
   while ((ev_type = cmark_iter_next(iter)) != CMARK_EVENT_DONE) {
     cur = cmark_iter_get_node(iter);
     if (ev_type == CMARK_EVENT_EXIT && cur->type == CMARK_NODE_FOOTNOTE_DEFINITION) {
-      cmark_node_unlink(cur);
       cmark_footnote_create(map, cur);
     }
   }
 
   cmark_iter_free(iter);
@@ -483,10 +482,19 @@
       cmark_footnote *footnote = (cmark_footnote *)cmark_map_lookup(map, &cur->as.literal);
       if (footnote) {
         if (!footnote->ix)
           footnote->ix = ++ix;
 
+        // store a reference to this footnote reference's footnote definition
+        // this is used by renderers when generating label ids
+        cur->parent_footnote_def = footnote->node;
+
+        // keep track of a) count of how many times this footnote def has been
+        // referenced, and b) which reference index this footnote ref is at.
+        // this is used by renderers when generating links and backreferences.
+        cur->footnote.ref_ix = ++footnote->node->footnote.def_count;
+
         char n[32];
         snprintf(n, sizeof(n), "%d", footnote->ix);
         cmark_chunk_free(parser->mem, &cur->as.literal);
         cmark_strbuf buf = CMARK_BUF_INIT(parser->mem);
         cmark_strbuf_puts(&buf, n);
@@ -513,16 +521,19 @@
 
   if (map->sorted) {
     qsort(map->sorted, map->size, sizeof(cmark_map_entry *), sort_footnote_by_ix);
     for (unsigned int i = 0; i < map->size; ++i) {
       cmark_footnote *footnote = (cmark_footnote *)map->sorted[i];
-      if (!footnote->ix)
+      if (!footnote->ix) {
+        cmark_node_unlink(footnote->node);
         continue;
+      }
       cmark_node_append_child(parser->root, footnote->node);
       footnote->node = NULL;
     }
   }
 
+  cmark_unlink_footnotes_map(map);
   cmark_map_free(map);
 }
 
 // Attempts to parse a list item marker (bullet or enumerated).
 // On success, returns length of the marker, and populates