From b6e3af45e9bbcbe9d3ee39716681c396f7618446 Mon Sep 17 00:00:00 2001
From: HibiKier <775757368@qq.com>
Date: Wed, 5 Apr 2023 22:57:14 +0800
Subject: [PATCH] fix bug

---
 plugins/word_bank/word_handle.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/plugins/word_bank/word_handle.py b/plugins/word_bank/word_handle.py
index bdf221d8..52f99357 100644
--- a/plugins/word_bank/word_handle.py
+++ b/plugins/word_bank/word_handle.py
@@ -184,7 +184,8 @@ async def _(
     problem_image: Message = Arg("problem_image"),
 ):
     try:
-        if word_type == "正则":
+        if word_type == "正则" and problem:
+            problem = unescape(problem)
             try:
                 re.compile(problem)
             except re.error: