Merge pull request #5 from Kylmakalle/patch-1

Regexp Commands Filter with usage example

aiogram/dispatcher/filters.py

@@ -132,6 +132,32 @@ class RegexpFilter(Filter):
             return bool(self.regexp.search(message.text))
 
 
+class RegexpCommandsFilter(AsyncFilter):
+    """
+    Check commands by regexp in message
+    """
+
+    def __init__(self, regexp_commands):
+        self.regexp_commands = [re.compile(command, flags=re.IGNORECASE | re.MULTILINE) for command in regexp_commands]
+
+    async def check(self, message):
+        if not message.is_command():
+            return False
+
+        command = message.text.split()[0][1:]
+        command, _, mention = command.partition('@')
+
+        if mention and mention != (await message.bot.me).username:
+            return False
+
+        for command in self.regexp_commands:
+            search = command.search(message.text)
+            if search:
+                message.conf['regexp_command'] = search
+                return True
+        return False
+
+
 class ContentTypeFilter(Filter):
     """
     Check message content type

examples/regexp_commands_filter_example.py

@@ -0,0 +1,16 @@
+from aiogram import Bot, types
+from aiogram.dispatcher import Dispatcher, filters
+from aiogram.utils import executor
+
+bot = Bot(token='TOKEN')
+dp = Dispatcher(bot)
+
+
+@dp.message_handler(filters.RegexpCommandsFilter(regexp_commands=['item_([0-9]*)']))
+async def send_welcome(message: types.Message):
+    regexp_command = message.conf['regexp_command']
+    await message.reply("You have requested an item with number: {}".format(regexp_command.group(1)))
+
+
+if __name__ == '__main__':
+    executor.start_polling(dp)