From 9e8410fe71ea97c659ff61647598495a5a0e03ee Mon Sep 17 00:00:00 2001
From: "martin f. krafft" <madduck@madduck.net>
Date: Fri, 25 Aug 2023 01:25:49 +1200
Subject: [PATCH] buildmimetree.py: provide a default visitor_fn (debug)

---
 .config/neomutt/buildmimetree.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/.config/neomutt/buildmimetree.py b/.config/neomutt/buildmimetree.py
index e2a23a7..4ab7a54 100755
--- a/.config/neomutt/buildmimetree.py
+++ b/.config/neomutt/buildmimetree.py
@@ -339,9 +339,12 @@ def convert_markdown_to_html(
 
 class MIMETreeDFWalker:
     def __init__(self, *, visitor_fn=None, debug=False):
-        self._visitor_fn = visitor_fn
+        self._visitor_fn = visitor_fn or self._echovisit
         self._debug = debug
 
+    def _echovisit(self, node, ancestry, debugprint):
+        debugprint(f"node={node} ancestry={ancestry}")
+
     def walk(self, root, *, visitor_fn=None):
         """
         Recursive function to implement a depth-dirst walk of the MIME-tree
-- 
2.39.5