I have a feeling that query escaping really is broken in Lucene.
Try running the class below like this:
prompt> java Escaper '+string' '\+string'
I get:
$ java Escaper '+string' '\+string'
0: +string
1: \+string
QUERY: \+string
HITS: 0
That should give me 1 hit, shouldn't it?
import org.apache.lucene.queryParser.QueryParser;
import org.apache.lucene.analysis.*;
import org.apache.lucene.search.*;
import org.apache.lucene.index.*;
import org.apache.lucene.store.*;
import org.apache.lucene.document.*;
public class Escaper
{
public static void main(String[] args) throws Exception
{
System.out.println("0: " + args[0]);
System.out.println("1: " + args[1]);
Directory dir = new RAMDirectory();
IndexWriter writer = new IndexWriter(dir, new
WhitespaceAnalyzer(), true);
Document doc = new Document();
doc.add(Field.Text("text", args[0]));
writer.addDocument(doc);
writer.optimize();
writer.close();
QueryParser qp = new QueryParser("text", new
WhitespaceAnalyzer());
Query q = qp.parse(args[1]);
System.out.println("QUERY: " + q.toString("text"));
IndexSearcher searcher = new IndexSearcher(dir);
Hits hits = searcher.search(q);
System.out.println("HITS: " + hits.length());
searcher.close();
}
}
Thanks,
Otis
--- Jean-Francois Halleux <[EMAIL PROTECTED]> wrote:
> Hello,
>
> in TestQueryParser, method testEscaped(), I see the following:
>
> ...
> assertQueryEquals("\\+blah", a, "\\+blah");
> assertQueryEquals("\\(blah", a, "\\(blah");
>
> assertQueryEquals("\\-blah", a, "\\-blah");
> assertQueryEquals("\\!blah", a, "\\!blah");
> assertQueryEquals("\\{blah", a, "\\{blah");
> assertQueryEquals("\\}blah", a, "\\}blah");
> ...
>
> is this really the expected behavior? Shouldn't \\-blah be
> interpreted
> as -blah and \\!blah as !blah ?
>
> Thanks,
>
> Jean-Francois Halleux
>
>
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