Bike.Parser.Lexer.Identifier C# (CSharp) Метод

        private Token Identifier()
        {
            var buf = new StringBuilder();
            do
            {
                buf.Append((char) currentChar);
                Next();
            } while (Char.IsLetter((char) currentChar) ||
                     Char.IsDigit((char) currentChar) ||
                     currentChar == '_' ||
                     currentChar == '$');
            var identifier = buf.ToString();
            var keyword = identifier.KeywordFromString();
            return Token(keyword == TokenType.None
                             ? TokenType.Identifier
                             : keyword, identifier);
        }