System.Xml.DtdParser.ScanCondSection1 C# (CSharp) Méthode

        private Token ScanCondSection1()
        {
            if (_chars[_curPos] != 'I')
            {
                Throw(_curPos, SR.Xml_ExpectIgnoreOrInclude);
            }
            _curPos++;

            for (;;)
            {
                if (_charsUsed - _curPos < 5)
                {
                    goto ReadData;
                }
                switch (_chars[_curPos])
                {
                    case 'N':
                        if (_charsUsed - _curPos < 6)
                        {
                            goto ReadData;
                        }
                        if (_chars[_curPos + 1] != 'C' || _chars[_curPos + 2] != 'L' ||
                             _chars[_curPos + 3] != 'U' || _chars[_curPos + 4] != 'D' ||
                             _chars[_curPos + 5] != 'E' || _xmlCharType.IsNameSingleChar(_chars[_curPos + 6])
#if XML10_FIFTH_EDITION
                             || xmlCharType.IsNCNameHighSurrogateChar( chars[curPos+6] ) 
#endif
                            )
                        {
                            goto default;
                        }
                        _nextScaningFunction = ScanningFunction.SubsetContent;
                        _scanningFunction = ScanningFunction.CondSection2;
                        _curPos += 6;
                        return Token.INCLUDE;
                    case 'G':
                        if (_chars[_curPos + 1] != 'N' || _chars[_curPos + 2] != 'O' ||
                             _chars[_curPos + 3] != 'R' || _chars[_curPos + 4] != 'E' ||
                             _xmlCharType.IsNameSingleChar(_chars[_curPos + 5])
#if XML10_FIFTH_EDITION
                            ||xmlCharType.IsNCNameHighSurrogateChar( chars[curPos+5] ) 
#endif
                            )
                        {
                            goto default;
                        }
                        _nextScaningFunction = ScanningFunction.CondSection3;
                        _scanningFunction = ScanningFunction.CondSection2;
                        _curPos += 5;
                        return Token.IGNORE;
                    default:
                        Throw(_curPos - 1, SR.Xml_ExpectIgnoreOrInclude);
                        return Token.None;
                }
            ReadData:
                if (ReadData() == 0)
                {
                    Throw(_curPos, SR.Xml_IncompleteDtdContent);
                }
            }
        }