From 21b9e1a645d41f93cb369fc178d362e0c0370600 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tam=C3=A1s=20B=C3=A1lint=20Misius?= <lbphacker@gmail.com>
Date: Thu, 12 Mar 2020 09:48:53 +0100
Subject: [PATCH] Allow everything Unicode except noncharacters and control
 characters

Thanks mniip, see a113cbe.
---
 src/gui/interface/Textbox.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gui/interface/Textbox.cpp b/src/gui/interface/Textbox.cpp
index 0cfda4520..a777469bf 100644
--- a/src/gui/interface/Textbox.cpp
+++ b/src/gui/interface/Textbox.cpp
@@ -263,7 +263,7 @@ bool Textbox::CharacterValid(int character)
 				return true;
 		case All:
 		default:
-			return character >= ' ';
+			return character >= ' ' && character <= 0x10FFFF && !(character >= 0xD800 && character <= 0xDFFF) && !(character >= 0xFDD0 && character <= 0xFDEF) && !((character & 0xFFFF) >= 0xFFFE);
 	}
 	return false;
 }