The Lucene Highlighter doesn't require that the text you want  
highlighted be stored.  In fact, you can pass in any arbitrary text to  
the Highlighter.

See the various getBestFragments from the Highlighter class:
   <http://lucene.apache.org/java/2_4_1/api/org/apache/lucene/search/highlight/Highlighter.html 
 >

	Erik


On Sep 29, 2009, at 7:01 AM, Yitzchak Schaffer wrote:

> Hello,
>
> Sorry for any cross-posting annoyance.  I have a request for a  
> Greenstone collection I'm working on, to add context snippets to  
> search results; for example a search for "yak culture" might return  
> this in the list of results:
>
> ... addressing the fine points of <strong>yak culture</strong>, the  
> zoosociologists took into account ...
>
> Sounds like a pretty basic feature, say our sponsors, and I agree.   
> (Ah, it's also an old Trac ticket at http://trac.greenstone.org/ticket/444)
>
> I see that GS out-of-the-box is set *not* to store the fulltext in  
> the index, which seems to be a prerequisite for this kind of thing,  
> as in http://bit.ly/ljNkL .  Has anyone modified the Lucene indexing  
> wrapper locally to do this?
>
> Given that we don't have any Java coders on staff, I've started  
> porting the Lucene wrapper to PHP for use with a custombuilder.pl  
> and Zend_Search_Lucene.  I already have a PHP frontend, so adjusting  
> that to display the results shouldn't be a problem; OTOH because the  
> frontend is PHP, I'm restricted to using buildtype lucene, or  
> something else with good PHP support.
>
> Many thanks,
>
> -- 
> Yitzchak Schaffer
> Systems Manager
> Touro College Libraries
> 33 West 23rd Street
> New York, NY 10010
> Tel (212) 463-0400 x5230
> Fax (212) 627-3197
> Email [log in to unmask]