1 files changed, 6 insertions, 0 deletions
diff --git a/src/node.h b/src/node.h
index 48d12df..cc93d23 100644
--- a/src/node.h
+++ b/src/node.h
@@ -42,6 +42,11 @@ typedef struct {
   cmark_chunk title;
 } cmark_link;
 
+typedef struct {
+  cmark_chunk on_enter;
+  cmark_chunk on_exit;
+} cmark_custom;
+
 struct cmark_node {
   struct cmark_node *next;
   struct cmark_node *prev;
@@ -69,6 +74,7 @@ struct cmark_node {
     cmark_code code;
     cmark_header header;
     cmark_link link;
+    cmark_custom custom;
     int html_block_type;
   } as;
 };