From f40336b4db5f988ffcabe0e504e1387f78179a00 Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Sun, 8 Mar 2026 03:03:00 +0000
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=20/s=20=E7=AD=9B?=
 =?UTF-8?q?=E9=80=89=E6=8C=89=E9=92=AE=E6=97=A0=E5=93=8D=E5=BA=94=E5=8F=8A?=
 =?UTF-8?q?=E7=BF=BB=E9=A1=B5=E6=A0=87=E9=A2=98=E6=B6=88=E5=A4=B1=20bug?=
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根因：上次为 edit_text 添加 parse_mode="Markdown" 后，
云盘 URL 中的 _ 字符被 Telegram 解析为 Markdown 斜体标记，
API 返回 can't parse entities 错误，被 except 静默吞掉，
导致点击筛选/翻页按钮后消息不更新。

修复1：新增 _md_escape() 函数，对 URL 中的 Markdown 特殊字符
（_、*、[、`）进行转义，确保动态 URL 内容不破坏 Markdown 解析。

修复2：翻页（search_next/previous_page）后改用
get_text_with_info() 获取文本，避免翻页后标题行消失。
---
 module/search/search.py | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/module/search/search.py b/module/search/search.py
index 2502f13..a5e7af7 100644
--- a/module/search/search.py
+++ b/module/search/search.py
@@ -36,6 +36,13 @@
 }
 
 
+def _md_escape(text: str) -> str:
+    """转义 Telegram Markdown v1 特殊字符（用于动态内容）"""
+    for ch in ("_", "*", "[", "`"):
+        text = text.replace(ch, f"\\{ch}")
+    return text
+
+
 def build_result_item_sync(count: int, item: PanSouResult) -> str:
     file_name = item.name
     file_url = item.url
@@ -54,7 +61,7 @@ def build_result_item_sync(count: int, item: PanSouResult) -> str:
     pwd_text = f" | 密码: `{password}`" if password else ""
     
     clean_url = file_url.split("#")[0] if file_url else ""
-    url_text = f"\n🔗 {clean_url}" if clean_url else ""
+    url_text = f"\n🔗 {_md_escape(clean_url)}" if clean_url else ""
 
     return f"{count}. {emoji} `{file_name}`\n{file_size}{pwd_text}{url_text}\n\n"
 
@@ -230,9 +237,11 @@ async def search_callback(update: Update, context: ContextTypes.DEFAULT_TYPE):
         return
     
     if data == "search_next_page":
-        text = page.next_page()
+        page.next_page()
+        text = page.get_text_with_info()
     elif data == "search_previous_page":
-        text = page.previous_page()
+        page.previous_page()
+        text = page.get_text_with_info()
     elif data == "search_filter_all":
         page.set_filter(None)
         text = page.get_text_with_info()