This problem is filed at: https://issues.apache.org/jira/browse/LUCENE-1489
You may want to take a look at LUCENE-1522 for highlighting N-gram tokens: https://issues.apache.org/jira/browse/LUCENE-1522 Koji ito hayato wrote: > Hi All, > My name is Hayato. > > I have a question for Highlighter. > > I indexed following text and use Tokenizer. > > text : abracadabra > Tokenizer: NGramAnalyzer > > and requested following query > > query : ab > > expected result and actual result is following > > expect : <B>ab</B>racad<B>ab</B>ra > actual : <B>abracadab</B>ra > > > To be more specific, i try this testcase, but failed. > > is this behavior valid? > if valid, please teach me why this result... > > ----------------- > public static class NGramAnalyzer extends Analyzer { > int minGram; > > int maxGram; > > public NGramAnalyzer(int minGram, int maxGram) { > super(); > this.maxGram = maxGram; > this.minGram = minGram; > } > > public TokenStream tokenStream(String fieldName, > java.io.Reader reader) { > return new NGramTokenizer(reader, minGram, > maxGram); > } > } > > @Test > public void testGetBestTextFragments2() throws > IOException, ParseException { > String CONTENT = "abracadabra"; > String QUERY_STRING = "ab"; > String F = "f"; > Analyzer analyzer = new NGramAnalyzer(2,2); > TokenStream tokenStream = > analyzer.tokenStream("f", new StringReader(CONTENT)); > > QueryParser qp = new QueryParser(F, analyzer); > Query query = null; > query = qp.parse(QUERY_STRING); > > Scorer scorer = new QueryScorer(query, F); > Highlighter h = new Highlighter(scorer); > > Assert.assertEquals("<B>ab</B>racad<B>ab</B>ra", > h.getBestTextFragments(tokenStream, CONTENT, true, > 10)[0].markedUpText > .toString()); > > } > > > -------------------------------------- > Power up the Internet with Yahoo! Toolbar. > http://pr.mail.yahoo.co.jp/toolbar/ > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > > > --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
