Pchp.Library.Streams.PhpStream.GetSchemeInternal C# (CSharp) Method

        internal static string GetSchemeInternal(string path, out string filename)
        {
            int colon_index = path.IndexOf(':');
            if (colon_index == -1)
            {
                // No scheme, no root directory, it's a relative path.
                filename = path;
                return "file";
            }

            if (Path.IsPathRooted(path))
            {
                // It already is an absolute path.
                filename = path;
                return "file";
            }

            if (path.Length < colon_index + 3 || path[colon_index + 1] != '/' || path[colon_index + 2] != '/')
            {
                // There is no "//" following the colon.
                filename = path;
                return "file";
            }

            // Otherwise it is an URL (including file://), set the filename and return the scheme.
            filename = path.Substring(colon_index + "://".Length);
            return path.Substring(0, colon_index);
        }