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From "Mark Miller (JIRA)" <>
Subject [jira] Updated: (LUCENE-794) Extend contrib Highlighter to properly support phrase queries and span queries
Date Sat, 26 Jan 2008 21:46:35 GMT


Mark Miller updated LUCENE-794:

    Attachment: SpanHighlighter-01-26-2008.patch

This patch gets rid of the separate SpanScorer test class and combines all test in HighlighterTest.
Almost all of the tests are now run twice - once with the standard QueryScorer and once with
the new SpanScorer.

Thanks to all for the bug fixes and contributions.

- Mark

> Extend contrib Highlighter to properly support phrase queries and span queries
> ------------------------------------------------------------------------------
>                 Key: LUCENE-794
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Other
>            Reporter: Mark Miller
>            Priority: Minor
>         Attachments: SpanHighlighter-01-26-2008.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,
> 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 and PhraseQuery. There is also
a new Fragmenter that attempts to fragment without breaking up Spans.
> See for some background.
> There is a dependency on MemoryIndex.

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