From bead9e9440aaa9a3f1b092f0adc36e5441d67b35 Mon Sep 17 00:00:00 2001
From: Dmitry Batrak <Dmitry.Batrak@jetbrains.com>
Date: Thu, 7 Sep 2017 11:14:54 +0300
Subject: [PATCH] IDEA-177979 Impossible to enter zero width non-joiner
 character on Win10

---
 platform/util/src/com/intellij/util/ui/UIUtil.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/platform/util/src/com/intellij/util/ui/UIUtil.java b/platform/util/src/com/intellij/util/ui/UIUtil.java
index ebf6b0db3dcb..9b2fe4da18c4 100644
--- a/platform/util/src/com/intellij/util/ui/UIUtil.java
+++ b/platform/util/src/com/intellij/util/ui/UIUtil.java
@@ -711,6 +711,9 @@ public class UIUtil {
     char c = e.getKeyChar();
     if (c < 0x20 || c == 0x7F) return false;
 
+    // Allow input of special characters on Windows in Persian keyboard layout using Ctrl+Shift+1..4 
+    if (SystemInfo.isWindows && c >= 0x200C && c <= 0x200F) return true;
+
     if (SystemInfo.isMac) {
       return !e.isMetaDown() && !e.isControlDown();
     }