From fc2bd40fc76996306efc1f8de581708d8c5a2943 Mon Sep 17 00:00:00 2001
From: Greg Twohig <greg@deepvantage.com>
Date: Fri, 6 Aug 2021 13:45:17 +0300
Subject: [PATCH] Fixed #32990 -- Simplified and optimized tag regex.

Thanks Chris Jerdonek for the review.
---
 AUTHORS                 |  1 +
 django/template/base.py | 10 ++++------
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/AUTHORS b/AUTHORS
index 2d9d23f73e..3e4aa1aa2c 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -356,6 +356,7 @@ answer newbie questions, and generally made Django that much better:
     Graham Carlyle <graham.carlyle@maplecroft.net>
     Grant Jenks <contact@grantjenks.com>
     Greg Chapple <gregchapple1@gmail.com>
+    Greg Twohig
     Gregor Allensworth <greg.allensworth@gmail.com>
     Gregor Müllegger <gregor@muellegger.de>
     Grigory Fateyev <greg@dial.com.ru>
diff --git a/django/template/base.py b/django/template/base.py
index a8c2e5774e..c01f36a34e 100644
--- a/django/template/base.py
+++ b/django/template/base.py
@@ -85,12 +85,10 @@ SINGLE_BRACE_END = '}'
 # (e.g. strings)
 UNKNOWN_SOURCE = '<unknown source>'
 
-# match a variable or block tag and capture the entire tag, including start/end
-# delimiters
-tag_re = (_lazy_re_compile('(%s.*?%s|%s.*?%s|%s.*?%s)' %
-          (re.escape(BLOCK_TAG_START), re.escape(BLOCK_TAG_END),
-           re.escape(VARIABLE_TAG_START), re.escape(VARIABLE_TAG_END),
-           re.escape(COMMENT_TAG_START), re.escape(COMMENT_TAG_END))))
+# Match BLOCK_TAG_*, VARIABLE_TAG_*, and COMMENT_TAG_* tags and capture the
+# entire tag, including start/end delimiters. Using re.compile() is faster
+# than instantiating SimpleLazyObject with _lazy_re_compile().
+tag_re = re.compile(r'({%.*?%}|{{.*?}}|{#.*?#})')
 
 logger = logging.getLogger('django.template')