Adding MultiRegexp filter

Adding filter to return multiple matches, instead of only first found

aiogram/dispatcher/filters/builtin.py

@@ -463,6 +463,42 @@ class RegexpCommandsFilter(BoundFilter):
         return False
 
 
+class MultiRegexp(Filter):
+    """
+    Regexp filter for messages and callback query returning multiple matches
+    """
+
+    def __init__(self, regexp):
+        if not isinstance(regexp, typing.Pattern):
+            regexp = re.compile(regexp, flags=re.IGNORECASE | re.MULTILINE)
+        self.regexp = regexp
+
+    @classmethod
+    def validate(cls, full_config: typing.Dict[str, typing.Any]):
+        if 'regexp' in full_config:
+            return {'regexp': full_config.pop('regexp')}
+
+    async def check(self, obj: typing.Union[Message, CallbackQuery, InlineQuery, Poll]):
+        if isinstance(obj, Message):
+            content = obj.text or obj.caption or ''
+            if not content and obj.poll:
+                content = obj.poll.question
+        elif isinstance(obj, CallbackQuery) and obj.data:
+            content = obj.data
+        elif isinstance(obj, InlineQuery):
+            content = obj.query
+        elif isinstance(obj, Poll):
+            content = obj.question
+        else:
+            return False
+
+        matches = self.regexp.findall(content)
+
+        if matches:
+            return {'regexp': matches}
+        return False
+
+
 class ContentTypeFilter(BoundFilter):
     """
     Check message content type