string OffsetHitsToGrid(List <Hit> hits)
{
Hits = Hits.OrderBy(h => h.Index).ThenBy(h => h.Skip).ToList();
var low = Hits.FirstOrDefault().Index;
var last = Hits.LastOrDefault();
var high = last.Index;
high += (last.Term?.Length ?? 1) * last.Skip;
Hits = Hits.Select(h => new Hit(h.Term, (h.Index - low), h.Start, h.Skip)).ToList();
low = low - Start >= 0 ? low - Start : low;
high = high >= Text.Length ? Text.Length - 1 : high;
return(Range(Text, low, high));
}