Google.SafeBrowsing.API.SplitPath C# (CSharp) Метод

        private IEnumerable<string> SplitPath(string url)
        {
            var index = Int32.MaxValue;
            var sub = url;

            while (index >= 0)
            {
                yield return sub;
                index = sub.Substring(0, sub.Length - 1).LastIndexOf('/');
                sub = sub.Substring(0, index + 1);
            }
        }