From a5e3278c84828eb3f18f41c1af25324235b97d21 Mon Sep 17 00:00:00 2001
From: Georg Brandl <georg@python.org>
Date: Tue, 7 May 2019 17:46:01 +0200
Subject: Fix invalid string escape.

---
 pygments/lexers/asm.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pygments/lexers/asm.py b/pygments/lexers/asm.py
index 7100868c..b522450c 100644
--- a/pygments/lexers/asm.py
+++ b/pygments/lexers/asm.py
@@ -690,7 +690,7 @@ class Dasm16Lexer(RegexLexer):
 
     # Regexes yo
     char = r'[a-zA-Z$._0-9@]'
-    identifier = r'(?:[a-zA-Z$_]' + char + '*|\.' + char + '+)'
+    identifier = r'(?:[a-zA-Z$_]' + char + r'*|\.' + char + '+)'
     number = r'[+-]?(?:0[xX][a-zA-Z0-9]+|\d+)'
     binary_number = r'0b[01_]+'
     instruction = r'(?i)(' + '|'.join(INSTRUCTIONS) + ')'
-- 
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