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https://issues.apache.org/jira/browse/LUCENE-2699?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steven Rowe updated LUCENE-2699:
--------------------------------

    Attachment: LUCENE-2699.patch

In this version of the patch, I bumped the minimum JFlex trunk revision in 
READ_BEFORE_REGENERATING.txt to 597.  Also added a CHANGES.txt entry.

> Update StandardTokenizer and UAX29Tokenizer to Unicode 6.0.0
> ------------------------------------------------------------
>
>                 Key: LUCENE-2699
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2699
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: contrib/analyzers
>    Affects Versions: 3.1, 4.0
>            Reporter: Steven Rowe
>            Assignee: Steven Rowe
>            Priority: Minor
>             Fix For: 3.1, 4.0
>
>         Attachments: LUCENE-2699.patch, LUCENE-2699.patch
>
>
> Newly released Unicode 6.0.0 contains some character property changes from 
> the previous release (5.2.0) that affect word segmentation (UAX#29), and 
> JFlex 1.5.0-SNAPSHOT now supports Unicode 6.0.0, so Lucene's UAX#29-based 
> tokenizers should be updated accordingly.
> Note that the UAX#29 word break rules themselves did not change between 
> Unicode versions 5.2.0 and 6.0.0.

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