From 4c45cb8cc4599c6aa207aa75005f862ff1316b17 Mon Sep 17 00:00:00 2001
From: Dmitry Trofimov <dmitry.trofimov@jetbrains.com>
Date: Tue, 6 Nov 2018 17:48:09 +0100
Subject: [PATCH] Cleanup

---
 .../jetbrains/python/documentation/PythonDocumentationMap.java  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/python/src/com/jetbrains/python/documentation/PythonDocumentationMap.java b/python/src/com/jetbrains/python/documentation/PythonDocumentationMap.java
index c4bbc28005d9..a82f0bedebd4 100644
--- a/python/src/com/jetbrains/python/documentation/PythonDocumentationMap.java
+++ b/python/src/com/jetbrains/python/documentation/PythonDocumentationMap.java
@@ -176,7 +176,7 @@ public class PythonDocumentationMap implements PersistentStateComponent<PythonDo
         continue;
       }
       if (entry.getKey().endsWith("?")) {
-        String regex = "\\{" + entry.getKey().replace("?", "\\?") + "([^}]+)\\}";
+        String regex = "\\{" + Pattern.quote(entry.getKey()) + "([^}]+)\\}";
 
         Matcher matcher = Pattern.compile(regex).matcher(urlPattern);
         if (matcher.find()) {