From e5b357cfb1f1cb9bb27049cbdab56b739a6bdef7 Mon Sep 17 00:00:00 2001
From: Zae <zaevi@live.com>
Date: Wed, 23 Sep 2020 13:10:27 +0800
Subject: [PATCH] Fix C# string.IsAbsPath()

(cherry picked from commit b5eea5cfd426115969d3382505a508cc866959ba)
---
 .../glue/GodotSharp/GodotSharp/Core/StringExtensions.cs  | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/modules/mono/glue/GodotSharp/GodotSharp/Core/StringExtensions.cs b/modules/mono/glue/GodotSharp/GodotSharp/Core/StringExtensions.cs
index 12444ac1296..5d328e106cc 100644
--- a/modules/mono/glue/GodotSharp/GodotSharp/Core/StringExtensions.cs
+++ b/modules/mono/glue/GodotSharp/GodotSharp/Core/StringExtensions.cs
@@ -448,7 +448,12 @@ namespace Godot
         // </summary>
         public static bool IsAbsPath(this string instance)
         {
-            return System.IO.Path.IsPathRooted(instance);
+            if (string.IsNullOrEmpty(instance))
+                return false;
+            else if (instance.Length > 1)
+                return instance[0] == '/' || instance[0] == '\\' || instance.Contains(":/") || instance.Contains(":\\");
+            else
+                return instance[0] == '/' || instance[0] == '\\';
         }
 
         // <summary>
@@ -456,7 +461,7 @@ namespace Godot
         // </summary>
         public static bool IsRelPath(this string instance)
         {
-            return !System.IO.Path.IsPathRooted(instance);
+            return !IsAbsPath(instance);
         }
 
         // <summary>