Org.BouncyCastle.Pkix.PkixNameConstraintValidator.unionURI C# (CSharp) Метод

        private ISet unionURI(ISet excluded, String uri)
        {
            if (excluded.IsEmpty)
            {
                if (uri == null)
                {
                    return excluded;
                }
                excluded.Add(uri);

                return excluded;
            }
            else
            {
                ISet union = new HashSet();

                IEnumerator _iter = excluded.GetEnumerator();
                while (_iter.MoveNext())
                {
                    String _excluded = (String)_iter.Current;

                    unionURI(_excluded, uri, union);
                }

                return union;
            }
        }