检查消息纯文本是否以指定字符串开头。 参数: msg: 指定消息开头字符串元组 ignorecase: 是否忽略大小写
| 136 | |
| 137 | |
| 138 | class StartswithRule: |
| 139 | """检查消息纯文本是否以指定字符串开头。 |
| 140 | |
| 141 | 参数: |
| 142 | msg: 指定消息开头字符串元组 |
| 143 | ignorecase: 是否忽略大小写 |
| 144 | """ |
| 145 | |
| 146 | __slots__ = ("ignorecase", "msg") |
| 147 | |
| 148 | def __init__(self, msg: tuple[str, ...], ignorecase: bool = False): |
| 149 | self.msg = msg |
| 150 | self.ignorecase = ignorecase |
| 151 | |
| 152 | def __repr__(self) -> str: |
| 153 | return f"Startswith(msg={self.msg}, ignorecase={self.ignorecase})" |
| 154 | |
| 155 | def __eq__(self, other: object) -> bool: |
| 156 | return ( |
| 157 | isinstance(other, StartswithRule) |
| 158 | and frozenset(self.msg) == frozenset(other.msg) |
| 159 | and self.ignorecase == other.ignorecase |
| 160 | ) |
| 161 | |
| 162 | def __hash__(self) -> int: |
| 163 | return hash((frozenset(self.msg), self.ignorecase)) |
| 164 | |
| 165 | async def __call__(self, event: Event, state: T_State) -> bool: |
| 166 | try: |
| 167 | text = event.get_plaintext() |
| 168 | except Exception: |
| 169 | return False |
| 170 | if match := re.match( |
| 171 | f"^(?:{'|'.join(re.escape(prefix) for prefix in self.msg)})", |
| 172 | text, |
| 173 | re.IGNORECASE if self.ignorecase else 0, |
| 174 | ): |
| 175 | state[STARTSWITH_KEY] = match.group() |
| 176 | return True |
| 177 | return False |
| 178 | |
| 179 | |
| 180 | def startswith(msg: str | tuple[str, ...], ignorecase: bool = False) -> Rule: |