From 5a3164d8db9ce5bbd64480bcb63eb1ac7a587151 Mon Sep 17 00:00:00 2001
From: Andi Albrecht <albrecht.andi@gmail.com>
Date: Wed, 26 Jun 2019 12:35:02 +0200
Subject: Optimize parsing of literal blocks between dollar signs (fixes #491).

---
 sqlparse/keywords.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'sqlparse')

diff --git a/sqlparse/keywords.py b/sqlparse/keywords.py
index 2444b22..5c47dfc 100644
--- a/sqlparse/keywords.py
+++ b/sqlparse/keywords.py
@@ -38,7 +38,7 @@ SQL_REGEX = {
 
         (r"`(``|[^`])*`", tokens.Name),
         (r"´(´´|[^´])*´", tokens.Name),
-        (r'(\$(?:[_A-ZÀ-Ü]\w*)?\$)[\s\S]*?\1', tokens.Literal),
+        (r'((?<!\S)\$(?:[_A-ZÀ-Ü]\w*)?\$)[\s\S]*?\1', tokens.Literal),
 
         (r'\?', tokens.Name.Placeholder),
         (r'%(\(\w+\))?s', tokens.Name.Placeholder),
-- 
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