public double Score(string subject, string query, StringScorerOptions options)
{
if (!(options.AllowErrors || IsMatch(subject, options.PreparedQuery.CoreLw, options.PreparedQuery.CoreUp)))
{
return(0);
}
var stringLw = subject.ToLower();
var score = ComputeScore(subject, stringLw, options.PreparedQuery);
return(Math.Ceiling(score));
}
private double ScorePath(string subject, string subjectLw, double score, StringScorerOptions options)
{
if (score == 0)
{
return(0);
}
var pathSeparator = Convert.ToChar(options.PathSeparator);
var end = subject.Length - 1;
while (subject[end] == pathSeparator)
{
end--;
}
var basePos = subject.LastIndexOf(pathSeparator, end);
var fileLength = end - basePos;
var extAdjust = 1.0;
if (options.UseExtensionBonus)
{
extAdjust += GetExtensionScore(subjectLw, options.PreparedQuery.Ext, basePos, end, 2);
score *= extAdjust;
}
if (basePos == -1)
{
return(score);
}
var depth = options.PreparedQuery.Depth;
while (basePos > -1 && depth-- > 0)
{
basePos = subject.LastIndexOf(options.PathSeparator, basePos - 1);
}
double basePathScore = 0.0;
if (basePos == -1)
{
basePathScore = score;
}
else
{
basePathScore = extAdjust * Scorer.ComputeScore(subject.Slice(basePos + 1, end + 1), subjectLw.Slice(basePos + 1, end + 1), options.PreparedQuery);
}
var alpha = 0.5 * CONST_TAU_DEPTH / (CONST_TAU_DEPTH + ScorerUtil.CountDir(subject, end + 1, Convert.ToChar(options.PathSeparator)));
return(alpha * basePathScore + (1 - alpha) * score * Scorer.ScoreSize(0, CONST_FILE_COEFF * (fileLength)));
}
public void ReturnMostAccurateLimitedResultTest()
{
var opts = new StringScorerOptions(maxResults: 1);
var candidates = new List <string> {
"GruntFile", "filter", "bile"
};
var result = StringScorer.Filter(candidates, "file", opts);
var words = result.Select(x => x.Word).ToList();
Assert.Single(result);
Assert.Equal(new [] { "GruntFile" }, words);
}
public static HighlightedResult Wrap(string subject, string query, StringScorerOptions options)
{
var highlight = new int[subject.Length];
if (subject == query)
{
int j = -1;
while (++j < highlight.Length)
{
highlight[j] = j;
}
return(new HighlightedResult(subject, highlight));
}
var matchPositions = Match(subject, query, options);
return(new HighlightedResult(subject, matchPositions));
}
public static int[] Match(string subject, string query, StringScorerOptions options)
{
if (!(options.AllowErrors || Scorer.IsMatch(subject, options.PreparedQuery.CoreLw, options.PreparedQuery.CoreUp)))
{
return(new int[] { });
}
var string_lw = subject.ToLower();
var matches = ComputeMatch(subject, string_lw, options.PreparedQuery);
if (matches.Length == 0)
{
return(matches);
}
if (subject.IndexOf(options.PathSeparator) > -1)
{
var baseMatches = BasenameMatch(subject, string_lw, options.PreparedQuery, options.PathSeparator);
matches = MergeMatches(matches, baseMatches);
}
return(matches);
}
public static IResultCandidate[] FilterCandidates(ICandidate[] candidates, string query,
StringScorerOptions options)
{
var scoredCandidates = new List <ResultCandidate>();
var spotLeft = candidates.Length + 1;
if (options.MaxInners.HasValue && options.MaxInners > 0)
{
spotLeft = options.MaxInners.Value;
}
for (var i = 0; i < candidates.Length; i++)
{
double score = 0.0;
score = options.ScorerEngine.Score(candidates[i].Word, query, options);
if (score > 0)
{
scoredCandidates.Add(new ResultCandidate(candidates[i], score));
if (--spotLeft == 0)
{
break;
}
}
}
var result = scoredCandidates.OrderByDescending(x => x.Score);
if (options.MaxResults.HasValue)
{
return(result.Take(options.MaxResults.Value).ToArray());
}
return(result.ToArray());
}
private IResultSubject[] Filter(List <string> candidates, string query, StringScorerOptions options = null)
{
return(StringScorer.Filter(candidates, query, options));
}
private string ReturnBestMatch(List <string> candidates, string query, StringScorerOptions options = null)
{
return(Filter(candidates, query, options)[0].Word);
}