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From "Shinya Kasatani (JIRA)" <j...@apache.org>
Subject [jira] Updated: (LUCENE-2910) Highlighter does not correctly highlight the phrase around 50th term
Date Mon, 07 Feb 2011 09:29:30 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-2910?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Shinya Kasatani updated LUCENE-2910:
------------------------------------

    Attachment: HighlighterFix.patch

A test case that describes the problem, along with a fix.


> Highlighter does not correctly highlight the phrase around 50th term
> --------------------------------------------------------------------
>
>                 Key: LUCENE-2910
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2910
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: contrib/highlighter
>    Affects Versions: 2.9.4
>            Reporter: Shinya Kasatani
>            Priority: Trivial
>         Attachments: HighlighterFix.patch
>
>
> When you use the Highlighter combined with N-Gram tokenizers such as CJKTokenizer and
try to highlight the phrase that appears around 50th term in the field, the highlighted phrase
is shorter than expected.
> e.g. Highlighting "fooo" in the following text with bigram tokenizer:
> "0---------1---------2---------3---------4---------fooo---"
> Expected: "0---------1---------2---------3---------4---------<B>fooo</B>---"
> Actual: "0---------1---------2---------3---------4---------f<B>ooo</B>---"

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