System.Net.CookieTokenizer.FindNext C# (CSharp) Method

        internal CookieToken FindNext(bool ignoreComma, bool ignoreEquals)
        {
            _tokenLength = 0;
            _start = _index;
            while ((_index < _length) && Char.IsWhiteSpace(_tokenStream[_index]))
            {
                ++_index;
                ++_start;
            }

            CookieToken token = CookieToken.End;
            int increment = 1;

            if (!Eof)
            {
                if (_tokenStream[_index] == '"')
                {
                    Quoted = true;
                    ++_index;
                    bool quoteOn = false;
                    while (_index < _length)
                    {
                        char currChar = _tokenStream[_index];
                        if (!quoteOn && currChar == '"')
                        {
                            break;
                        }

                        if (quoteOn)
                        {
                            quoteOn = false;
                        }
                        else if (currChar == '\\')
                        {
                            quoteOn = true;
                        }
                        ++_index;
                    }
                    if (_index < _length)
                    {
                        ++_index;
                    }
                    _tokenLength = _index - _start;
                    increment = 0;
                    // If we are here, reset ignoreComma.
                    // In effect, we ignore everything after quoted string until the next delimiter.
                    ignoreComma = false;
                }
                while ((_index < _length)
                       && (_tokenStream[_index] != ';')
                       && (ignoreEquals || (_tokenStream[_index] != '='))
                       && (ignoreComma || (_tokenStream[_index] != ',')))
                {
                    // Fixing 2 things:
                    // 1) ignore day of week in cookie string
                    // 2) revert ignoreComma once meet it, so won't miss the next cookie)
                    if (_tokenStream[_index] == ',')
                    {
                        _start = _index + 1;
                        _tokenLength = -1;
                        ignoreComma = false;
                    }
                    ++_index;
                    _tokenLength += increment;
                }
                if (!Eof)
                {
                    switch (_tokenStream[_index])
                    {
                        case ';':
                            token = CookieToken.EndToken;
                            break;

                        case '=':
                            token = CookieToken.Equals;
                            break;

                        default:
                            _cookieLength = _index - _cookieStartIndex;
                            token = CookieToken.EndCookie;
                            break;
                    }
                    ++_index;
                }
                else
                {
                    _cookieLength = _index - _cookieStartIndex;
                }
            }
            return token;
        }