OpenBve.FileSystem.GetAbsolutePath C# (CSharp) Method

		private static string GetAbsolutePath(string folder, bool checkIfRooted) {
			string originalFolder = folder;
			if (checkIfRooted) {
				folder = folder.Replace('/', Path.DirectorySeparatorChar);
				folder = folder.Replace('\\', Path.DirectorySeparatorChar);
			}
			folder = folder.Replace("$[AssemblyFile]", Assembly.GetExecutingAssembly().Location);
			folder = folder.Replace("$[AssemblyFolder]", Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location));
			folder = folder.Replace("$[ApplicationData]", Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData));
			folder = folder.Replace("$[CommonApplicationData]", Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData));
			folder = folder.Replace("$[Personal]", Environment.GetFolderPath(Environment.SpecialFolder.Personal));
			if (checkIfRooted && !Path.IsPathRooted(folder)) {
				throw new InvalidDataException("The folder " + originalFolder + " does not produce an absolute path.");
			}
			return folder;
		}