Fix handling of word boundaries in Filter cog (#6725)

Evanroby · web-flow · commit 17fea2f6dc51 · 2026-05-23T08:39:32.000+02:00
diff --git 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(rf"(?<!\w){re.escape(w)}(?!\w)" for w in word_list), flags=re.I
                 )
             else:
                 pattern = None

Original file line number	Diff line number	Diff line change
`@@ -475,7 +475,7 @@ async def filter_hits(`
`475`	`475`
`476`	`476`	`if word_list:`
`477`	`477`	`pattern = re.compile(`
`478`		`- "\|".join(rf"\b{re.escape(w)}\b" for w in word_list), flags=re.I`
	`478`	`+ "\|".join(rf"(?<!\w){re.escape(w)}(?!\w)" for w in word_list), flags=re.I`
`479`	`479`	`)`
`480`	`480`	`else:`
`481`	`481`	`pattern = None`