[jira] [Updated] (LUCENE-5019) SimpleFragmentScorer can create very long fragments

["Alexandre Patry (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-5019?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexandre Patry updated LUCENE-5019:
------------------------------------

    Attachment: simple-span-fragmenter.patch

A patch to fix SimpleFragmentScorer.
                
> SimpleFragmentScorer can create very long fragments
> ---------------------------------------------------
>
>                 Key: LUCENE-5019
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5019
>             Project: Lucene - Core
>          Issue Type: Bug
>          Components: modules/highlighter
>    Affects Versions: 4.3
>            Reporter: Alexandre Patry
>            Priority: Minor
>         Attachments: simple-span-fragmenter.patch
>
>
> In SimpleFragmentScorer, when a query term is followed by a stop word, the fragment will run until the end of the document.
> When a query term is encountered (line 80), SimpleFragmentScorer waits for the token following it before allowing the fragment to end (lines 68 to 72). When a stop word follows the query word (or any token with a position increment greater than 1), its position is skipped and the token SimpleFragmentScorer is waiting for never arrive.
> The attached patch fixes that by waiting for the first token following the query word instead of the token at the position after the query term.

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