From 3b87974bd0854b22152f6b4107654e9ede8af70f Mon Sep 17 00:00:00 2001
From: Harald van Dijk <harald@gigawatt.nl>
Date: Sat, 11 Oct 2025 08:43:10 +0100
Subject: [PATCH] Fix links after emoji
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

JavaScript strings are encoded as UTF-16. When a Unicode character
outside of the BMP is part of a string, it is encoded as a surrogate
pair. For instance, '🎨' is encoded as '\uD83C\uDFA8', but a for-of loop
will treat that as a single character with length 2. In
getByteToCharMap, this was not handled, resulting in an incorrect value
of charIndex and links being placed at the wrong location in messages.
---
 src/components/UniversalPostRenderer.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/components/UniversalPostRenderer.tsx b/src/components/UniversalPostRenderer.tsx
index 3a67f07..533a590 100644
--- a/src/components/UniversalPostRenderer.tsx
+++ b/src/components/UniversalPostRenderer.tsx
@@ -2297,7 +2297,7 @@ function getByteToCharMap(text: string): number[] {
     for (let i = 0; i < bytes.length; i++) {
       map[byteIndex++] = charIndex;
     }
-    charIndex++;
+    charIndex+=char.length;
   }
 
   return map;
-- 
2.43.0