Feature: 添加多消息段命令解析支持

nonebot/rule.py

@@ -117,6 +117,11 @@ def get_value(cls, bot: Bot, event: Event, state: T_State) -> CMD_RESULT:
                 # check whitespace
                 arg_str = segment_text[len(pf.key) :]
                 arg_str_stripped = arg_str.lstrip()
+                # check next segment until arg detected or no text remain
+                while not arg_str_stripped and msg and msg[0].is_text():
+                    arg_str += str(msg.pop(0))
+                    arg_str_stripped = arg_str.lstrip()
+
                 has_arg = arg_str_stripped or msg
                 if (
                     has_arg

tests/test_rule.py

@@ -113,6 +113,36 @@ async def test_trie(app: App):
             command_whitespace=" ",
         )
 
+        message = FakeMessageSegment.text("/fake-prefix ") + FakeMessageSegment.text(
+            " some args"
+        )
+        event = make_fake_event(_message=message)()
+        state = {}
+        TrieRule.get_value(bot, event, state)
+        assert state[PREFIX_KEY] == CMD_RESULT(
+            command=("fake-prefix",),
+            raw_command="/fake-prefix",
+            command_arg=FakeMessage("some args"),
+            command_start="/",
+            command_whitespace="  ",
+        )
+
+        message = (
+            FakeMessageSegment.text("/fake-prefix ")
+            + FakeMessageSegment.text("    ")
+            + FakeMessageSegment.text(" some args")
+        )
+        event = make_fake_event(_message=message)()
+        state = {}
+        TrieRule.get_value(bot, event, state)
+        assert state[PREFIX_KEY] == CMD_RESULT(
+            command=("fake-prefix",),
+            raw_command="/fake-prefix",
+            command_arg=FakeMessage("some args"),
+            command_start="/",
+            command_whitespace="      ",
+        )
+
     del TrieRule.prefix["/fake-prefix"]