Parsley.TokenStream.LazyAdvance C# (CSharp) Method

        private TokenStream LazyAdvance(IEnumerator<Token> enumerator)
        {
            if (enumerator.MoveNext())
                return new TokenStream(enumerator.Current, enumerator);

            if (Current.Kind == TokenKind.EndOfInput)
                return this;

            var endPosition = new Position(Position.Line, Position.Column + Current.Literal.Length);

            return new TokenStream(new Token(TokenKind.EndOfInput, endPosition, ""));
        }