🔀 Merge pull request #797

Feature: 新增文本完整匹配规则

nonebot/__init__.py

@@ -11,6 +11,7 @@
 - `on_request` => {ref}``on_request` <nonebot.plugin.on.on_request>`
 - `on_startswith` => {ref}``on_startswith` <nonebot.plugin.on.on_startswith>`
 - `on_endswith` => {ref}``on_endswith` <nonebot.plugin.on.on_endswith>`
+- `on_fullmatch` => {ref}``on_fullmatch` <nonebot.plugin.on.on_fullmatch>`
 - `on_keyword` => {ref}``on_keyword` <nonebot.plugin.on.on_keyword>`
 - `on_command` => {ref}``on_command` <nonebot.plugin.on.on_command>`
 - `on_shell_command` => {ref}``on_shell_command` <nonebot.plugin.on.on_shell_command>`
@@ -273,6 +274,7 @@ from nonebot.plugin import on_endswith as on_endswith
 from nonebot.plugin import CommandGroup as CommandGroup
 from nonebot.plugin import MatcherGroup as MatcherGroup
 from nonebot.plugin import load_plugins as load_plugins
+from nonebot.plugin import on_fullmatch as on_fullmatch
 from nonebot.plugin import on_metaevent as on_metaevent
 from nonebot.plugin import on_startswith as on_startswith
 from nonebot.plugin import load_from_json as load_from_json

nonebot/plugin/__init__.py

@@ -11,6 +11,7 @@
 - `on_request` => {ref}``on_request` <nonebot.plugin.on.on_request>`
 - `on_startswith` => {ref}``on_startswith` <nonebot.plugin.on.on_startswith>`
 - `on_endswith` => {ref}``on_endswith` <nonebot.plugin.on.on_endswith>`
+- `on_fullmatch` => {ref}``on_fullmatch` <nonebot.plugin.on.on_fullmatch>`
 - `on_keyword` => {ref}``on_keyword` <nonebot.plugin.on.on_keyword>`
 - `on_command` => {ref}``on_command` <nonebot.plugin.on.on_command>`
 - `on_shell_command` => {ref}``on_shell_command` <nonebot.plugin.on.on_shell_command>`
@@ -58,6 +59,7 @@ from .on import on_endswith as on_endswith
 from .load import load_plugin as load_plugin
 from .on import CommandGroup as CommandGroup
 from .on import MatcherGroup as MatcherGroup
+from .on import on_fullmatch as on_fullmatch
 from .on import on_metaevent as on_metaevent
 from .plugin import get_plugin as get_plugin
 from .load import load_plugins as load_plugins

nonebot/plugin/on.py

@@ -21,6 +21,7 @@ from nonebot.rule import (
     command,
     keyword,
     endswith,
+    fullmatch,
     startswith,
     shell_command,
 )
@@ -283,6 +284,30 @@ def on_endswith(
     return on_message(endswith(msg, ignorecase) & rule, **kwargs, _depth=_depth + 1)
 
 
+def on_fullmatch(
+    msg: Union[str, Tuple[str, ...]],
+    rule: Optional[Optional[Union[Rule, T_RuleChecker]]] = None,
+    ignorecase: bool = False,
+    _depth: int = 0,
+    **kwargs,
+) -> Matcher:
+    """
+    注册一个消息事件响应器，并且当消息的**文本部分**与指定内容完全一致时响应。
+
+    参数:
+        msg: 指定消息全匹配内容
+        rule: 事件响应规则
+        ignorecase: 是否忽略大小写
+        permission: 事件响应权限
+        handlers: 事件处理函数列表
+        temp: 是否为临时事件响应器（仅执行一次）
+        priority: 事件响应器优先级
+        block: 是否阻止事件向更低优先级传递
+        state: 默认 state
+    """
+    return on_message(fullmatch(msg, ignorecase) & rule, **kwargs, _depth=_depth + 1)
+
+
 def on_keyword(
     keywords: Set[str],
     rule: Optional[Union[Rule, T_RuleChecker]] = None,
@@ -611,6 +636,28 @@ class MatcherGroup:
         self.matchers.append(matcher)
         return matcher
 
+    def on_fullmatch(self, msg: Union[str, Tuple[str, ...]], **kwargs) -> Type[Matcher]:
+        """
+        注册一个消息事件响应器，并且当消息的**文本部分**与指定内容完全一致时响应。
+
+        参数:
+            msg: 指定消息全匹配内容
+            rule: 事件响应规则
+            ignorecase: 是否忽略大小写
+            permission: 事件响应权限
+            handlers: 事件处理函数列表
+            temp: 是否为临时事件响应器（仅执行一次）
+            priority: 事件响应器优先级
+            block: 是否阻止事件向更低优先级传递
+            state: 默认 state
+        """
+        final_kwargs = self.base_kwargs.copy()
+        final_kwargs.update(kwargs)
+        final_kwargs.pop("type", None)
+        matcher = on_fullmatch(msg, **final_kwargs, _depth=1)
+        self.matchers.append(matcher)
+        return matcher
+
     def on_keyword(self, keywords: Set[str], **kwargs) -> Type[Matcher]:
         """
         注册一个消息事件响应器，并且当消息纯文本部分包含关键词时响应。

nonebot/plugin/on.pyi

@@ -79,6 +79,18 @@ def on_endswith(
     block: bool = ...,
     state: Optional[T_State] = ...,
 ) -> Type[Matcher]: ...
+def on_fullmatch(
+    msg: Union[str, Tuple[str, ...]],
+    rule: Optional[Optional[Union[Rule, T_RuleChecker]]] = ...,
+    ignorecase: bool = ...,
+    *,
+    permission: Optional[Union[Permission, T_PermissionChecker]] = ...,
+    handlers: Optional[List[Union[T_Handler, Dependent]]] = ...,
+    temp: bool = ...,
+    priority: int = ...,
+    block: bool = ...,
+    state: Optional[T_State] = ...,
+) -> Type[Matcher]: ...
 def on_keyword(
     keywords: Set[str],
     rule: Optional[Union[Rule, T_RuleChecker]] = ...,
@@ -261,6 +273,19 @@ class MatcherGroup:
         block: bool = ...,
         state: Optional[T_State] = ...,
     ) -> Type[Matcher]: ...
+    def on_fullmatch(
+        self,
+        msg: Union[str, Tuple[str, ...]],
+        *,
+        ignorecase: bool = ...,
+        rule: Optional[Union[Rule, T_RuleChecker]] = ...,
+        permission: Optional[Union[Permission, T_PermissionChecker]] = ...,
+        handlers: Optional[List[Union[T_Handler, Dependent]]] = ...,
+        temp: bool = ...,
+        priority: int = ...,
+        block: bool = ...,
+        state: Optional[T_State] = ...,
+    ) -> Type[Matcher]: ...
     def on_keyword(
         self,
         keywords: Set[str],

nonebot/rule.py

@@ -171,6 +171,42 @@ def endswith(msg: Union[str, Tuple[str, ...]], ignorecase: bool = False) -> Rule
     return Rule(EndswithRule(msg, ignorecase))
 
 
+class FullmatchRule:
+    """检查消息纯文本是否与指定字符串全匹配。
+
+    参数:
+        msg: 指定消息全匹配字符串元组
+        ignorecase: 是否忽略大小写
+    """
+
+    __slots__ = ("msg", "ignorecase")
+
+    def __init__(self, msg: Tuple[str, ...], ignorecase: bool = False):
+        self.msg = frozenset(map(str.casefold, msg) if ignorecase else msg)
+        self.ignorecase = ignorecase
+
+    async def __call__(
+        self, type_: str = EventType(), text: str = EventPlainText()
+    ) -> bool:
+        return (
+            type_ == "message"
+            and (text.casefold() if self.ignorecase else text) in self.msg
+        )
+
+
+def fullmatch(msg: Union[str, Tuple[str, ...]], ignorecase: bool = False) -> Rule:
+    """完全匹配消息。
+
+    参数:
+        msg: 指定消息全匹配字符串元组
+        ignorecase: 是否忽略大小写
+    """
+    if isinstance(msg, str):
+        msg = (msg,)
+
+    return Rule(FullmatchRule(msg, ignorecase))
+
+
 class KeywordsRule:
     """检查消息纯文本是否包含指定关键字。
 

tests/test_rule.py

@@ -105,6 +105,43 @@ async def test_endswith(
     assert await dependent(event=event) == expected
 
 
+@pytest.mark.asyncio
+@pytest.mark.parametrize(
+    "msg,ignorecase,type,text,expected",
+    [
+        ("fullmatch", False, "message", "fullmatch", True),
+        ("fullmatch", False, "message", "Fullmatch", False),
+        ("fullmatch", True, "message", "fullmatch", True),
+        ("fullmatch", True, "message", "Fullmatch", True),
+        ("fullmatch", False, "message", "fullfoo", False),
+        ("fullmatch", False, "message", "_fullmatch_", False),
+        (("fullmatch", "foo"), False, "message", "fullmatchfoo", False),
+        ("fullmatch", False, "notice", "foo", False),
+    ],
+)
+async def test_fullmatch(
+    app: App,
+    msg: Union[str, Tuple[str, ...]],
+    ignorecase: bool,
+    type: str,
+    text: str,
+    expected: bool,
+):
+    from nonebot.rule import FullmatchRule, fullmatch
+
+    test_fullmatch = fullmatch(msg, ignorecase)
+    dependent = list(test_fullmatch.checkers)[0]
+    checker = dependent.call
+
+    assert isinstance(checker, FullmatchRule)
+    assert checker.msg == {msg} if isinstance(msg, str) else {*msg}
+    assert checker.ignorecase == ignorecase
+
+    message = make_fake_message()(text)
+    event = make_fake_event(_type=type, _message=message)()
+    assert await dependent(event=event) == expected
+
+
 @pytest.mark.asyncio
 @pytest.mark.parametrize(
     "kws,type,text,expected",

website/docs/tutorial/plugin/create-matcher.md

@@ -122,14 +122,15 @@ matcher = on_message()
 5. `on_notice`: 创建通知事件响应器。
 6. `on_startswith`: 创建消息开头匹配事件响应器。
 7. `on_endswith`: 创建消息结尾匹配事件响应器。
-8. `on_keyword`: 创建消息关键词匹配事件响应器。
-9. `on_command`: 创建命令消息事件响应器。
-10. `on_shell_command`: 创建 shell 命令消息事件响应器。
-11. `on_regex`: 创建正则表达式匹配事件响应器。
-12. `CommandGroup`: 创建具有共同命令名称前缀的命令组。
-13. `MatcherGroup`: 创建具有共同参数的响应器组。
+8. `on_fullmatch`: 创建消息完全匹配事件响应器。
+9. `on_keyword`: 创建消息关键词匹配事件响应器。
+10. `on_command`: 创建命令消息事件响应器。
+11. `on_shell_command`: 创建 shell 命令消息事件响应器。
+12. `on_regex`: 创建正则表达式匹配事件响应器。
+13. `CommandGroup`: 创建具有共同命令名称前缀的命令组。
+14. `MatcherGroup`: 创建具有共同参数的响应器组。
 
-其中，`on_metaevent` `on_message` `on_request` `on_notice` 函数都是在 `on` 的基础上添加了对应的事件类型 `type`；`on_startswith` `on_endswith` `on_keyword` `on_command` `on_shell_command` `on_regex` 函数都是在 `on_message` 的基础上添加了对应的匹配规则 `rule`。
+其中，`on_metaevent` `on_message` `on_request` `on_notice` 函数都是在 `on` 的基础上添加了对应的事件类型 `type`；`on_startswith` `on_endswith` `on_fullmatch` `on_keyword` `on_command` `on_shell_command` `on_regex` 函数都是在 `on_message` 的基础上添加了对应的匹配规则 `rule`。
 
 ## 自定义规则