public LexerState Next(NFA nf, int ch)
{
LexerState l;
if (dfc.TryGetValue(ch, out l))
return l;
l = new LexerState(nf);
for (int i = 0; i < nstates.Length; i++) {
int bm = nstates[i];
for (int j = 0; j < 32; j++) {
if ((bm & (1 << j)) == 0)
continue;
int ei = 0, eimax = 0;
var es = nf.EdgesOf(32*i + j, ref ei, ref eimax);
while (ei != eimax) {
var e = es[ei++];
if (e.when == ch || e.when == -1 && e.when_cc.Accepts(ch))
l.Add(e.to);
}
}
}
nf.Close(l);
LexerState cl;
if (!nf.dfashare.TryGetValue(l, out cl)) {
nf.dfashare[l] = cl = l;
}
dfc[ch] = cl;
return cl;
}