Lucene.Net.QueryParsers.Surround.Parser.QueryParserTokenManager.JjMoveNfa_0 C# (CSharp) Метод

        private int JjMoveNfa_0(int startState, int curPos)
        {
            int startsAt = 0;
            jjnewStateCnt = 3;
            int i = 1;
            jjstateSet[0] = startState;
            int kind = 0x7fffffff;
            for (; ; )
            {
                if (++jjround == 0x7fffffff)
                    ReInitRounds();
                if (curChar < 64)
                {
                    long l = 1L << curChar;
                    do
                    {
                        switch (jjstateSet[--i])
                        {
                            case 0:
                                if ((0x3ff000000000000L & l) == 0L)
                                    break;
                                if (kind > 23)
                                    kind = 23;
                                JjAddStates(17, 18);
                                break;
                            case 1:
                                if (curChar == 46)
                                    JjCheckNAdd(2);
                                break;
                            case 2:
                                if ((0x3ff000000000000L & l) == 0L)
                                    break;
                                if (kind > 23)
                                    kind = 23;
                                JjCheckNAdd(2);
                                break;
                            default: break;
                        }
                    } while (i != startsAt);
                }
                else if (curChar < 128)
                {
                    //long l = 1L << (curChar & 077);
                    ulong l = (ulong)(1L << (curChar & 63)); 
                    do
                    {
                        switch (jjstateSet[--i])
                        {
                            default: break;
                        }
                    } while (i != startsAt);
                }
                else
                {
                    int hiByte = (int)(curChar >> 8);
                    int i1 = hiByte >> 6;
                    //long l1 = 1L << (hiByte & 077);
                    ulong l1 = (ulong)(1L << (hiByte & 63));
                    int i2 = (curChar & 0xff) >> 6;
                    //long l2 = 1L << (curChar & 077);
                    ulong l2 = (ulong)(1L << (curChar & 63));
                    do
                    {
                        switch (jjstateSet[--i])
                        {
                            default: break;
                        }
                    } while (i != startsAt);
                }
                if (kind != 0x7fffffff)
                {
                    jjmatchedKind = kind;
                    jjmatchedPos = curPos;
                    kind = 0x7fffffff;
                }
                ++curPos;
                if ((i = jjnewStateCnt) == (startsAt = 3 - (jjnewStateCnt = startsAt)))
                    return curPos;
                try { curChar = input_stream.ReadChar(); }
                catch (System.IO.IOException /*e*/) { return curPos; }
            }
        }
        internal static readonly int[] jjnextStates = {