From 67afae4f82df2f7c634e8b7e41f7a897e7372e40 Mon Sep 17 00:00:00 2001
From: Peter Gromov <peter@jetbrains.com>
Date: Wed, 17 Jun 2020 21:37:49 +0200
Subject: [PATCH] StringUtilRt.toLowerCase: handle more ASCII characters

GitOrigin-RevId: b928b492d60741a6a29c72d2998eee6b62645a5d
---
 .../src/com/intellij/openapi/util/text/StringUtilRt.java     | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/platform/util-rt/src/com/intellij/openapi/util/text/StringUtilRt.java b/platform/util-rt/src/com/intellij/openapi/util/text/StringUtilRt.java
index f5a9191df0f2..98b3ffe2cea2 100644
--- a/platform/util-rt/src/com/intellij/openapi/util/text/StringUtilRt.java
+++ b/platform/util-rt/src/com/intellij/openapi/util/text/StringUtilRt.java
@@ -53,8 +53,9 @@ public class StringUtilRt {
 
   @Contract(pure = true)
   public static char toLowerCase(char a) {
-    if (a < 'A' || a >= 'a' && a <= 'z') return a;
-    if (a <= 'Z') return (char)(a + ('a' - 'A'));
+    if (a <= 'z') {
+      return a >= 'A' && a <= 'Z' ? (char)(a + ('a' - 'A')) : a;
+    }
     return Character.toLowerCase(a);
   }