public void scan(AbstractSequence seq, int ipos, PositionConsumer out) {
int limit = seq.endPos();
ipos = seq.nextPos(ipos);
if (ipos != 0 && type.isInstancePos(seq, ipos)) out.writePosition(seq, ipos);
for (; ; ) {
ipos = seq.nextMatching(ipos, type, limit, true);
if (ipos == 0) break;
out.writePosition(seq, ipos);
}
}
