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https://issues.apache.org/jira/browse/LUCENE-4825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13600667#comment-13600667
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Robert Muir commented on LUCENE-4825:
-------------------------------------

I think making this pluggable for that is more like making an apple 
subclassable to be an orange. Thats why i recommend just a different 
highlighter with a design to fit. This one focuses on summarizing the document 
relevant to the individual query terms and the API reflects that.

We dont need to have a one-size-fits-all solution, we can have choices.
                
> PostingsHighlighter support for positional queries
> --------------------------------------------------
>
>                 Key: LUCENE-4825
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4825
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: modules/highlighter
>    Affects Versions: 4.2
>            Reporter: Luca Cavanna
>
> I've been playing around with the brand new PostingsHighlighter. I'm really 
> happy with the result in terms of quality of the snippets and performance.
> On the other hand, I noticed it doesn't support positional queries. If you 
> make a span query, for example, all the single terms will be highlighted, 
> even though they haven't contributed to the match. That reminds me of the 
> difference between the QueryTermScorer and the QueryScorer (using the 
> standard Highlighter).
> I've been trying to adapt what the QueryScorer does, especially the 
> extraction of the query terms together with their positions (what 
> WeightedSpanTermExtractor does). Next step would be to take that information 
> into account within the formatter and highlight only the terms that actually 
> contributed to the match. I'm not quite ready yet with a patch to contribute 
> this back, but I certainly intend to do so. That's why I opened the issue and 
> in the meantime I would like to hear what you guys think about it and  
> discuss how best we can fix it. I think it would be a big improvement for 
> this new highlighter, which is already great!

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