✨ escape & unescape in echo

arclet/entari/builtins/echo.py

@@ -1,6 +1,6 @@
-from arclet.alconna import Alconna, AllParam, Args, CommandMeta
+from arclet.alconna import Arparma
 
-from arclet.entari import MessageChain, Session, command, metadata
+from arclet.entari import MessageChain, command, metadata
 from arclet.entari.command import Match
 
 metadata(
@@ -10,16 +10,16 @@
 )
 
 
-cmd = command.mount(Alconna("echo", Args["content?", AllParam], meta=CommandMeta("显示消息", compact=True)))
-
-
-@cmd.handle
-async def echo_handle(content: Match[MessageChain], session: Session):
-    if content.available:
-        return await session.send(content.result)
-
-
-@cmd.on_execute()
-async def echo_exec(content: Match[MessageChain]):
-    if content.available:
+@(
+    command.command("echo <...content>", "显示消息")
+    .option("escape", "-e|--escape # 发送转义消息")
+    .option("unescape", "-E|--unescape # 发送反转义消息")
+    .config(compact=True)
+)
+def echo(content: Match[MessageChain], arp: Arparma):
+    if arp.find("unescape"):
+        return MessageChain.of(content.result.extract_plain_text())
+    elif arp.find("escape"):
+        return str(content.result)
+    else:
         return content.result

arclet/entari/command/__init__.py

@@ -24,7 +24,7 @@
 from .plugin import mount
 from .provider import AlconnaProviderFactory, AlconnaSuppiler, MessageJudges
 
-TM = TypeVar("TM", str, MessageChain)
+TM = TypeVar("TM", bound=Union[str, MessageChain])
 
 
 def get_cmd(target: Subscriber):

arclet/entari/message.py

@@ -6,7 +6,8 @@
 from typing_extensions import Self, SupportsIndex, TypeAlias
 
 from satori import select as satori_select
-from satori.element import At, Element, Link, Sharp, Style, Text
+from satori.element import At, Element, Link, Sharp, Style, Text, transform
+from satori.parser import parse
 
 T = TypeVar("T")
 TE = TypeVar("TE", bound=Element)
@@ -615,3 +616,7 @@ def display(self):
         return "".join(
             str(elem) if isinstance(elem, (Text, Style, At, Sharp, Link)) else elem.__class__.__name__ for elem in self
         )
+
+    @staticmethod
+    def of(text: str):
+        return MessageChain(transform(parse(text)))