From 64af4dfe7ee56d5f9b2d9465cb0ffd834db37afc Mon Sep 17 00:00:00 2001
From: Damien Elmes <gpg@ankiweb.net>
Date: Fri, 29 Jan 2021 11:15:08 +1000
Subject: [PATCH] drop potentially slow regex usage in cloze check

Closes #956, thanks to Henrik.
---
 qt/aqt/editor.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/qt/aqt/editor.py b/qt/aqt/editor.py
index 5e276f1fe..4335b97bb 100644
--- a/qt/aqt/editor.py
+++ b/qt/aqt/editor.py
@@ -21,6 +21,7 @@ from bs4 import BeautifulSoup
 import aqt
 import aqt.sound
 from anki.cards import Card
+from anki.consts import MODEL_CLOZE
 from anki.hooks import runFilter
 from anki.httpclient import HttpClient
 from anki.notes import Note
@@ -675,7 +676,7 @@ class Editor:
 
     def _onCloze(self):
         # check that the model is set up for cloze deletion
-        if not re.search("{{(.*:)*cloze:", self.note.model()["tmpls"][0]["qfmt"]):
+        if self.note.model()["type"] != MODEL_CLOZE:
             if self.addMode:
                 tooltip(tr(TR.EDITING_WARNING_CLOZE_DELETIONS_WILL_NOT_WORK))
             else: