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);
}
public override string ToString()
{
return($@"Searching text
starting at position {Start + 1} until position {Stop + 1}
skipping every {FromSkip} to {ToSkip} letter(s)
searching for {string.Join(",", Terms ?? new List<string>())}
within a proximity of {Proximity} letter(s).
{Hits.Count()} total hit(s) found:
{string.Join("\n", Hits ?? new List<Hit>())}
" );
}