From 7e5db2d7690a1922cce690aad8db79fe4666cb92 Mon Sep 17 00:00:00 2001
From: Evanroby <107794516+Evanroby@users.noreply.github.com>
Date: Wed, 1 Apr 2026 17:21:25 +0200
Subject: [PATCH 1/2] [Filter]: fix for unicode symbols and more

---
 redbot/cogs/filter/filter.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/redbot/cogs/filter/filter.py b/redbot/cogs/filter/filter.py
index 46294032463..3694ca069a9 100644
--- a/redbot/cogs/filter/filter.py
+++ b/redbot/cogs/filter/filter.py
@@ -475,7 +475,7 @@ async def filter_hits(
 
             if word_list:
                 pattern = re.compile(
-                    "|".join(rf"\b{re.escape(w)}\b" for w in word_list), flags=re.I
+                    "|".join(_build_word_pattern(w) for w in word_list), flags=re.I
                 )
             else:
                 pattern = None
@@ -642,6 +642,13 @@ async def maybe_filter_name(self, member: discord.Member):
             return
 
 
+def _build_word_pattern(word: str) -> str:
+    escaped = re.escape(word)
+    left_boundary = r"(?<!\w)" if word and re.match(r"\w", word[0], re.UNICODE) else ""
+    right_boundary = r"(?!\w)" if word and re.match(r"\w", word[-1], re.UNICODE) else ""
+    return f"{left_boundary}{escaped}{right_boundary}"
+
+
 _ChildComponent = Union[
     discord.Button,
     discord.CheckboxComponent,

From 8502dd9a35532430c2e67aa7b6eac0405837562d Mon Sep 17 00:00:00 2001
From: Evanroby <107794516+Evanroby@users.noreply.github.com>
Date: Thu, 21 May 2026 07:57:06 +0200
Subject: [PATCH 2/2] suggested changes applied

---
 redbot/cogs/filter/filter.py | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/redbot/cogs/filter/filter.py b/redbot/cogs/filter/filter.py
index 3694ca069a9..50706022674 100644
--- a/redbot/cogs/filter/filter.py
+++ b/redbot/cogs/filter/filter.py
@@ -475,7 +475,7 @@ async def filter_hits(
 
             if word_list:
                 pattern = re.compile(
-                    "|".join(_build_word_pattern(w) for w in word_list), flags=re.I
+                    "|".join(rf"(?<!\w){re.escape(w)}(?!\w)" for w in word_list), flags=re.I
                 )
             else:
                 pattern = None
@@ -642,13 +642,6 @@ async def maybe_filter_name(self, member: discord.Member):
             return
 
 
-def _build_word_pattern(word: str) -> str:
-    escaped = re.escape(word)
-    left_boundary = r"(?<!\w)" if word and re.match(r"\w", word[0], re.UNICODE) else ""
-    right_boundary = r"(?!\w)" if word and re.match(r"\w", word[-1], re.UNICODE) else ""
-    return f"{left_boundary}{escaped}{right_boundary}"
-
-
 _ChildComponent = Union[
     discord.Button,
     discord.CheckboxComponent,