/// <summary>
/// Generate new document with .sfx extension after removing the suffixes using porter algorithm
/// </summary>
/// <returns></returns>
public async Task GenerateStemmedFileAsync()
{
if (_documentStpWords == null)
{
return;
}
StemmedTerms = _documentStpWords.Select(term => Porter2Stemmer.EnglishPorter2Stemmer.Instance.Stem(term).Value).ToList();
// Add terms into DocumentTerms
StemmedTerms.ForEach(x => _terms.Add(x));
await File.WriteAllLinesAsync($"{_sfxFile}", StemmedTerms.ToArray());
}
/// <summary>
/// Get the count of term in document.
/// </summary>
/// <param name="term"></param>
/// <returns></returns>
public int Count(string term)
{
return(StemmedTerms.Count(x => x == term));
}
/// <summary>
/// Check if term exist in the document. return <see langword="true"/> if <paramref name="term"/> exist in the list of stemmed document terms
/// </summary>
/// <param name="term">The term looking for</param>
/// <returns></returns>
public bool IsTermExist(string term)
{
return(StemmedTerms != null && StemmedTerms.Contains(term, StringComparer.OrdinalIgnoreCase));
}
