Make sub_clyde case-sensitive and use Cyrillic e's

The Cyrillic characters are more likely to be rendered similarly to
their Latin counterparts than the math sans-serif characters.

1 files changed, 6 insertions, 2 deletions

diff --git a/bot/utils/messages.py b/bot/utils/messages.py
index 6ad9351cc..c7d756708 100644
--- a/bot/utils/messages.py
+++ b/bot/utils/messages.py
@@ -119,10 +119,14 @@ async def send_attachments(
 
 def sub_clyde(username: Optional[str]) -> Optional[str]:
     """
-    Replace "e" in any "clyde" in `username` with a similar Unicode char and return the new string.
+    Replace "e"/"E" in any "clyde" in `username` with a Cyrillic "е"/"E" and return the new string.
 
     Discord disallows "clyde" anywhere in the username for webhooks. It will return a 400.
     Return None only if `username` is None.
     """
+    def replace_e(match: re.Match) -> str:
+        char = "е" if match[2] == "e" else "Е"
+        return match[1] + char
+
     if username:
-        return re.sub(r"(clyd)e", r"\1𝖾", username, flags=re.I)
+        return re.sub(r"(clyd)(e)", replace_e, username, flags=re.I)