if m = entry.patmatch(pat, [0, len], fmis, fins, fdel)
record[:ADAPTOR_POS_LEFT] = m.pos
record[:ADAPTOR_LEN_LEFT] = m.length
if m = entry.patmatch(pat, [0, len], fmis, fins, fdel)
record[:ADAPTOR_POS_LEFT] = m.pos
record[:ADAPTOR_LEN_LEFT] = m.length