From 28b05f9286cea3634198e0d7170464469200ea87 Mon Sep 17 00:00:00 2001
From: Ahmed TAHRI <ahmed.tahri@cloudnursery.dev>
Date: Sat, 23 Oct 2021 21:59:39 +0200
Subject: [PATCH] :sparkle: Improvement over Vietnamese detection

Latin character with combining diacritical mark were miss detected/seen as mess (MD).
---
 charset_normalizer/md.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/charset_normalizer/md.py b/charset_normalizer/md.py
index 2146d61d..03a49fa5 100644
--- a/charset_normalizer/md.py
+++ b/charset_normalizer/md.py
@@ -453,6 +453,12 @@ def is_suspiciously_successive_range(
     if "Emoticons" in unicode_range_a or "Emoticons" in unicode_range_b:
         return False
 
+    # Latin characters can be accompanied with a combining diacritical mark
+    # eg. Vietnamese.
+    if "Latin" in unicode_range_a or "Latin" in unicode_range_b:
+        if "Combining" in unicode_range_a or "Combining" in unicode_range_b:
+            return False
+
     keywords_range_a, keywords_range_b = unicode_range_a.split(
         " "
     ), unicode_range_b.split(" ")