From 6ca14a58b0888413a98ac0754a99524004df1c3a Mon Sep 17 00:00:00 2001
From: Thomas Gelf <thomas@gelf.net>
Date: Mon, 14 Oct 2019 15:07:45 +0200
Subject: [PATCH] PropertyModifier: multibyte-safe upper/lowercase

fixes #710
---
 library/Director/PropertyModifier/PropertyModifierLowercase.php | 2 +-
 library/Director/PropertyModifier/PropertyModifierUppercase.php | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/library/Director/PropertyModifier/PropertyModifierLowercase.php b/library/Director/PropertyModifier/PropertyModifierLowercase.php
index 0f98336b..1291e702 100644
--- a/library/Director/PropertyModifier/PropertyModifierLowercase.php
+++ b/library/Director/PropertyModifier/PropertyModifierLowercase.php
@@ -8,6 +8,6 @@ class PropertyModifierLowercase extends PropertyModifierHook
 {
     public function transform($value)
     {
-        return strtolower($value);
+        return \mb_strtolower($value, 'UTF-8');
     }
 }
diff --git a/library/Director/PropertyModifier/PropertyModifierUppercase.php b/library/Director/PropertyModifier/PropertyModifierUppercase.php
index 395227c6..84146f8a 100644
--- a/library/Director/PropertyModifier/PropertyModifierUppercase.php
+++ b/library/Director/PropertyModifier/PropertyModifierUppercase.php
@@ -8,6 +8,6 @@ class PropertyModifierUppercase extends PropertyModifierHook
 {
     public function transform($value)
     {
-        return strtoupper($value);
+        return \mb_strtoupper($value, 'UTF-8');
     }
 }