IEnumerable <Hit> GetProximalHits(int proximity)
{
var proximalHits = new List <Hit>();
Hits = Hits.OrderByDescending(h => h.Index).ThenByDescending(h => h.Skip).ToList();
for (var i = 0; i < Hits.Count(); i++)
{
var current = Hits[i];
var j = i + 1 < Hits.Count() ? i + 1 : i;
var next = Hits[j];
var currentIndex = current.Index;
var nextIndex = next.Index;
var currentSkip = current.Skip;
var nextSkip = next.Skip;
if (Math.Abs(currentSkip - nextSkip) <= proximity || Math.Abs(currentIndex - nextIndex) <= proximity)
{
if (!proximalHits.Contains(current))
{
proximalHits.Add(current);
}
if (!proximalHits.Contains(next))
{
proximalHits.Add(next);
}
}
}
Hits = Hits.OrderBy(h => h.Index).ThenBy(h => h.Skip).ToList();
return(proximalHits);
}
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));
}