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https://issues.apache.org/jira/browse/LUCENE-8401?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16545040#comment-16545040
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Alan Woodward commented on LUCENE-8401:
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Here is a patch containing the following classes:
* Passage -> a representation of a highlight snippet, with text, start and end
offset, and a list of internal hits
* PassageBreaker -> an interface that defines where passages should start and
end, and if a hit should be added to the current passage or should start a new
one
* PassageBuilder -> public API that iteratively returns new Passage objects
* BreakIteratorPassageBreaker -> simple implementation of PassageBreaker
The passage builder uses a wrapper around its MatchesIterator to enable it to
peek at the position of the next hit, which means that we can improve
clustering for hits that looks like [A .............. B .. C], where A and B
are within the maximum snippet size, but A and C are not.
> Add PassageBuilder to help construct highlights using MatchesIterator
> ---------------------------------------------------------------------
>
> Key: LUCENE-8401
> URL: https://issues.apache.org/jira/browse/LUCENE-8401
> Project: Lucene - Core
> Issue Type: New Feature
> Components: modules/highlighter
> Reporter: Alan Woodward
> Assignee: Alan Woodward
> Priority: Major
> Attachments: LUCENE-8401.patch
>
>
> Jim and I discussed a while back the idea of adding highlighter components,
> rather than a fully-fledged highlighter, which would allow users to build
> their own specialised highlighters. To that end, I'd like to add a
> PassageBuilder class that uses the Matches API to break text up into passages
> containing hits.
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