[
http://issues.apache.org/jira/browse/LUCENE-627?page=comments#action_12420972 ]
Yonik Seeley commented on LUCENE-627:
-------------------------------------
Here's another fun one :-)
junit.framework.ComparisonFailure:
Expected :zooPod<B>Foo</B>
Actual :zoozooPod<B>zooPodFoo</B>
public void testOverlapAnalyzer3() throws Exception
{
String s = "zooPodFoo";
// the token stream for the string above:
TokenStream ts = new TokenStream() {
Iterator iter;
{
List lst = new ArrayList();
Token t;
t = new Token("zoo",0,3);
lst.add(t);
t = new Token("pod",3,6);
lst.add(t);
t = new Token("zoopod",0,6);
t.setPositionIncrement(0);
lst.add(t);
t = new Token("foo",6,9);
lst.add(t);
t = new Token("zoopodfoo",0,9);
t.setPositionIncrement(0);
lst.add(t);
iter = lst.iterator();
}
public Token next() throws IOException {
return iter.hasNext() ? (Token)iter.next() : null;
}
};
String srchkey = "foo";
QueryParser parser=new QueryParser("text",new WhitespaceAnalyzer());
Query query = parser.parse(srchkey);
Highlighter highlighter = new Highlighter(new QueryScorer(query));
// Get 3 best fragments and seperate with a "..."
String result = highlighter.getBestFragments(ts, s, 3, "...");
String expectedResult="zooPod<B>Foo</B>";
assertEquals(expectedResult,result);
}
> highlighter problems with overlapping tokens
> --------------------------------------------
>
> Key: LUCENE-627
> URL: http://issues.apache.org/jira/browse/LUCENE-627
> Project: Lucene - Java
> Type: Bug
> Components: Other
> Versions: 2.0.1
> Reporter: Yonik Seeley
>
> The lucene highlighter has problems when tokens that overlap are generated.
> For example, if analysis of iPod generates the tokens "i", "pod", "ipod"
> (with pod and ipod in the same position),
> then the highlighter will output this as iipod, regardless of if any of those
> tokens are highlighted.
> Discovered via http://issues.apache.org/jira/browse/SOLR-24
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