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From: Victor Hadianto <victorh@nuix.com.au>
Organization: NUIX Pty. Ltd.
To: "Lucene Users List" <lucene-user@jakarta.apache.org>
Subject: Re: QueryParser with stop/key words inside quotes
Date: Mon, 14 Apr 2003 17:12:25 +1100
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> The place to look is QueryParser.jj, method getFieldQuery, but it looks

I've been looking at QueryParser.jj and does the following modification:

I modified QueryParser to take 2 analyzer, 1 is the normal analyzer that drops 
all the stop words from the query, and the second analyzer will not drop any 
word from the token.

And in QueryParser.jj I modified the following:

     | term=<QUOTED>
       [ slop=<SLOP> ]
       [ <CARAT> boost=<NUMBER> ]
       {
	// If quoteAnalyzer is not null use the quoteAnalyzer 
         if (quoteAnalyzer == null)
         {
            q = getFieldQuery(field, analyzer,
                              term.image.substring(1, term.image.length()-1));
         }
         else
         {
            q = getFieldQuery(field, quoteAnalyzer,
                              term.image.substring(1, term.image.length()-1));
         }


> However, would you even want to do something like that?
> If you use the same Analyzer, with the same list of stop words for both

Yes again the drawback is that I have to use the analyzer that does not drop 
all those words from the search and thus they are indexed. This will grow our 
index to probably a huge amount, but unfortunately this is our requirement 
that we need to be able to search something like

"apple and orange"

or 

"apple for tomato"


> Otis

Thanks for the reply.

victor

> --- Victor Hadianto <victorh@nuix.com.au> wrote:
> > Lucene's QueryParsers seems to drop stop/key words even if they are
> > enclosed
> > in double quotes.
> >
> > For example:
> >
> > apple for tomato
> > --> +apple +tomato
> >
> > Which is what I expected, however
> >
> > "apple for tomato"
> > --> "apple tomato"
> >
> > and "for" in between apple and tomato is conveniently dropped.
> >
> > Is there a way to tell QueryParser not to drop those words if they
> > are
> > enclosed in double quotes?
> >


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