From 0bead5006510bcacf908a60ee392ef82fb86baa5 Mon Sep 17 00:00:00 2001
From: Exzap <13877693+Exzap@users.noreply.github.com>
Date: Thu, 15 Jun 2023 21:19:38 +0200
Subject: [PATCH] coreinit: Implement support for ".." in paths

---
 src/Cafe/IOSU/fsa/iosu_fsa.cpp | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/src/Cafe/IOSU/fsa/iosu_fsa.cpp b/src/Cafe/IOSU/fsa/iosu_fsa.cpp
index 2c23ea71..e194f96d 100644
--- a/src/Cafe/IOSU/fsa/iosu_fsa.cpp
+++ b/src/Cafe/IOSU/fsa/iosu_fsa.cpp
@@ -108,14 +108,30 @@ namespace iosu
 					if ((input.size() - idx) >= 3 && input[idx + 1] == '.' && input[idx + 2] == '/')
 					{
 						// "../"
-						cemu_assert_unimplemented();
+                        while(!tmp.empty())
+                        {
+                            if(tmp.back() == '/')
+                            {
+                                tmp.pop_back();
+                                break;
+                            }
+                            tmp.pop_back();
+                        }
 						idx += 3;
 						continue;
 					}
 					else if ((input.size() - idx) == 2 && input[idx + 1] == '.')
 					{
 						// ".." at the end
-						cemu_assert_unimplemented();
+                        while(!tmp.empty())
+                        {
+                            if(tmp.back() == '/')
+                            {
+                                tmp.pop_back();
+                                break;
+                            }
+                            tmp.pop_back();
+                        }
 						idx += 2;
 						continue;
 					}