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From "Otis Gospodnetic (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-794) Extend contrib Highlighter to properly support PhraseQuery, SpanQuery, ConstantScoreRangeQuery
Date Wed, 14 May 2008 05:29:55 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12596632#action_12596632
] 

Otis Gospodnetic commented on LUCENE-794:
-----------------------------------------

Regarding issues with building this, I am seeing the same thing, both for contrib/highlighter
and contrib/xml-query-parser.  Running "ant compile-core" from within those dirs does not
work and running "ant build-contrib" also fails.

The problem in both is with the dependency (on contrib/memory and contrib/queries.  Here is
what fixes xml-query-parser:

Instead of:
..... inheritall="false/>

Use this:
......inheritall="true" dir="../queries" />

And a similar thing for contrib/highlighter.
I'll commit both fixes shortly.


> Extend contrib Highlighter to properly support PhraseQuery, SpanQuery,  ConstantScoreRangeQuery
> -----------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-794
>                 URL: https://issues.apache.org/jira/browse/LUCENE-794
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Other
>            Reporter: Mark Miller
>            Priority: Minor
>             Fix For: 2.3.2
>
>         Attachments: MultiPhraseQueryExtraction.patch, SpanHighlighter-01-26-2008.patch,
SpanHighlighter-01-28-2008.patch, SpanHighlighter-02-10-2008.patch, SpanHighlighter-RemovSysOut.patch,
spanhighlighter.patch, spanhighlighter10.patch, spanhighlighter11.patch, spanhighlighter12.patch,
spanhighlighter2.patch, spanhighlighter3.patch, spanhighlighter5.patch, spanhighlighter6.patch,
spanhighlighter7.patch, spanhighlighter8.patch, spanhighlighter9.patch, spanhighlighter_24_January_2008.patch,
spanhighlighter_patch_4.zip
>
>
> This patch adds a new Scorer class (SpanQueryScorer) to the Highlighter package that
scores just like QueryScorer, but scores a 0 for Terms that did not cause the Query hit. This
gives 'actual' hit highlighting for the range of SpanQuerys, PhraseQuery, and  ConstantScoreRangeQuery.
New Query types are easy to add. There is also a new Fragmenter that attempts to fragment
without breaking up Spans.
> See http://issues.apache.org/jira/browse/LUCENE-403 for some background.
> There is a dependency on MemoryIndex.

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