public static bool IsEnglish(string text)
{
Lucene.Net.Store.Directory directoryBR = new RAMDirectory();
Lucene.Net.Store.Directory directoryEN = new RAMDirectory();
IndexWriter iwriterBr = new IndexWriter(directoryBR, brazilAnalyzer, true, new IndexWriter.MaxFieldLength(25000));
IndexWriter iwriterEn = new IndexWriter(directoryEN, englishAnalyzer, true, new IndexWriter.MaxFieldLength(25000));
Document doc = new Document();
doc.Add(new Field("detectLang", text,Field.Store.NO, Field.Index.ANALYZED));
iwriterBr.AddDocument(doc);
iwriterEn.AddDocument(doc);
iwriterBr.Dispose();
iwriterEn.Dispose();
//SE O Nº DE TERMOS ANALIZADOS EM INGLÊS FOR MAIOR QUE EM PORTUGUÊS QUER DIZER QUE NÃO ELIMINOU AS STOPWORDS, LOGO É PORTUGUÊS
TermEnum termsBr = new IndexSearcher(directoryBR, true).IndexReader.Terms();
string term;
int x=0;
while (termsBr.Next()) { term= termsBr.Term.ToString() ; ++x; }
TermEnum termsEn = new IndexSearcher(directoryEN, true).IndexReader.Terms();
int y=0;
while (termsEn.Next()) { term = termsEn.Term.ToString(); ++y; }
return y < x;
}
