LispEngine.Parsing.Parser.quotedExpression C# (CSharp) Метод

        private Datum quotedExpression()
        {
            if (next.Type != TokenType.Quote)
                return null;
            var symbol = isQuote(next.Contents);
            if(symbol != null)
            {
                var expression = parse();
                return cons(symbol, compound(expression));
            }
            return null;
        }