From e7993a448590400599d17cded0004597854d4fe2 Mon Sep 17 00:00:00 2001
From: yanyongyu <yanyongyu_1@126.com>
Date: Fri, 8 Jan 2021 18:14:18 +0800
Subject: [PATCH] :bug: fix plain text escaped

---
 nonebot/adapters/cqhttp/message.py | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/nonebot/adapters/cqhttp/message.py b/nonebot/adapters/cqhttp/message.py
index e5981ad6..ce1190c8 100644
--- a/nonebot/adapters/cqhttp/message.py
+++ b/nonebot/adapters/cqhttp/message.py
@@ -1,4 +1,5 @@
 import re
+from functools import reduce
 from typing import Any, Dict, Union, Tuple, Mapping, Iterable, Optional
 
 from nonebot.typing import overrides
@@ -223,6 +224,7 @@ class Message(BaseMessage):
                 yield MessageSegment(seg["type"], seg.get("data") or {})
             return
         elif isinstance(msg, str):
+
             def _iter_message(msg: str) -> Iterable[Tuple[str, str]]:
                 text_begin = 0
                 for cqcode in re.finditer(
@@ -232,7 +234,8 @@ class Message(BaseMessage):
                         r"),?\]", msg):
                     yield "text", msg[text_begin:cqcode.pos + cqcode.start()]
                     text_begin = cqcode.pos + cqcode.end()
-                    yield cqcode.group("type"), cqcode.group("params").lstrip(",")
+                    yield cqcode.group("type"), cqcode.group("params").lstrip(
+                        ",")
                 yield "text", msg[text_begin:]
 
             for type_, data in _iter_message(msg):
@@ -248,3 +251,11 @@ class Message(BaseMessage):
                                 x.lstrip() for x in data.split(","))))
                     }
                     yield MessageSegment(type_, data)
+
+    def extract_plain_text(self) -> str:
+
+        def _concat(x: str, y: MessageSegment) -> str:
+            return f"{x} {y.data['text']}" if y.is_text() else x
+
+        plain_text = reduce(_concat, self, "")
+        return plain_text[1:] if plain_text else plain_text