System.Net.Http.Headers.Lexer.EatChar C# (CSharp) Method

		public void EatChar ()
		{
			++pos;
		}

        public static bool TryParse(string input, out RangeConditionHeaderValue parsedValue)
        {
            parsedValue = null;

            var  lexer = new Lexer(input);
            var  t     = lexer.Scan();
            bool is_weak;

            if (t == Token.Type.Token)
            {
                if (lexer.GetStringValue(t) != "W")
                {
                    DateTimeOffset date;
                    if (!Lexer.TryGetDateValue(input, out date))
                    {
                        return(false);
                    }

                    parsedValue = new RangeConditionHeaderValue(date);
                    return(true);
                }

                if (lexer.PeekChar() != '/')
                {
                    return(false);
                }

                is_weak = true;
                lexer.EatChar();
                t = lexer.Scan();
            }
            else
            {
                is_weak = false;
            }

            if (t != Token.Type.QuotedString)
            {
                return(false);
            }

            if (lexer.Scan() != Token.Type.End)
            {
                return(false);
            }

            parsedValue = new RangeConditionHeaderValue(
                new EntityTagHeaderValue()
            {
                Tag    = lexer.GetStringValue(t),
                IsWeak = is_weak
            });

            return(true);
        }