From 77f7e7ae8b8f6c42c12e658c7a129429c1ba7bee Mon Sep 17 00:00:00 2001
From: John MacFarlane <jgm@berkeley.edu>
Date: Sat, 21 Dec 2019 09:36:08 -0800
Subject: Ensure that consecutive indented code blocks aren't merged...

by inserting an HTML comment.  Closes #317.
I think I'll follow up with a change to use fenced code
blocks, but this was the minimal fix.
---
 src/commonmark.c | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'src/commonmark.c')

diff --git a/src/commonmark.c b/src/commonmark.c
index 3440a91..f00d243 100644
--- a/src/commonmark.c
+++ b/src/commonmark.c
@@ -277,6 +277,15 @@ static int S_render_node(cmark_renderer *renderer, cmark_node *node,
     break;
 
   case CMARK_NODE_CODE_BLOCK:
+    if (entering && node->prev &&
+		    (node->prev->type == CMARK_NODE_CODE_BLOCK)) {
+      // this ensures that consecutive indented code blocks will not
+      // be merged (#317)
+      CR();
+      LIT("<!-- end code block -->");
+      BLANKLINE();
+    }
+
     first_in_list_item = node->prev == NULL && node->parent &&
                          node->parent->type == CMARK_NODE_ITEM;
 
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