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Posted to dev@lucene.apache.org by "Alexandre Patry (JIRA)" <ji...@apache.org> on 2013/05/27 21:58:20 UTC

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

Alexandre Patry created LUCENE-5019:
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             Summary: 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


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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