From ce34e1cbb9fe2a433b588d00af78a6196be76260 Mon Sep 17 00:00:00 2001
From: gibbed <rick@gibbed.us>
Date: Mon, 13 Apr 2020 10:53:54 -0500
Subject: [PATCH] [Core] Use UTF8-aware lower.

---
 src/xenia/emulator.cc | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/xenia/emulator.cc b/src/xenia/emulator.cc
index 601895b2c..2d3d1033e 100644
--- a/src/xenia/emulator.cc
+++ b/src/xenia/emulator.cc
@@ -254,9 +254,7 @@ X_STATUS Emulator::LaunchPath(const std::filesystem::path& path) {
     // Likely an STFS container.
     return LaunchStfsContainer(path);
   };
-  auto extension = xe::path_to_utf8(path.extension());
-  std::transform(extension.begin(), extension.end(), extension.begin(),
-                 tolower);
+  auto extension = xe::utf8::lower_ascii(xe::path_to_utf8(path.extension()));
   if (extension == ".xex" || extension == ".elf" || extension == ".exe") {
     // Treat as a naked xex file.
     return LaunchXexFile(path);