Oops, sorry for the very old source code links, although nothing much
changed in the current release:
http://lucene.apache.org/core/5_3_0/queryparser/org/apache/lucene/queryparser/flexible/standard/package-summary.html
http://lucene.apache.org/core/5_3_0/queryparser/org/apache/lucene/queryparser/flexible/standard/StandardQueryParser.html

-- Jack Krupansky

On Mon, Sep 21, 2015 at 6:57 AM, Jack Krupansky <jack.krupan...@gmail.com>
wrote:

> Probably a reference to the so-called flex query parser:
>
> https://lucene.apache.org/core/4_10_0/queryparser/org/apache/lucene/queryparser/flexible/standard/StandardQueryParser.html
>
> Read:
>
> https://lucene.apache.org/core/4_10_0/queryparser/org/apache/lucene/queryparser/flexible/standard/package-summary.html
>
> The original Jira:
> https://issues.apache.org/jira/browse/LUCENE-1567
>
> This new query parser was dumped into Lucene some years ago, but I haven't
> noticed any real activity or interest in it.
>
> -- Jack Krupansky
>
> On Mon, Sep 21, 2015 at 6:36 AM, Dmitry Kan <solrexp...@gmail.com> wrote:
>
>> Hello!
>>
>> Asked the question on IRC, mirroring it here too: In lucene level QP there
>> is a comment
>>
>> https://github.com/apache/lucene-solr/blob/lucene_solr_4_10/lucene/queryparser/src/java/org/apache/lucene/queryparser/classic/QueryParser.jj#L99
>> pointing to some contrib query parser, that offers modularity and
>> customizability.
>>
>> Can you point to what the exact class is?
>>
>> --
>> Dmitry Kan
>> Luke Toolbox: http://github.com/DmitryKey/luke
>> Blog: http://dmitrykan.blogspot.com
>> Twitter: http://twitter.com/dmitrykan
>> SemanticAnalyzer: www.semanticanalyzer.info
>>
>
>

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