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From "Steven Rowe (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3747) Support Unicode 6.1.0
Date Thu, 02 Feb 2012 18:18:53 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-3747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13199051#comment-13199051
] 

Steven Rowe commented on LUCENE-3747:
-------------------------------------

bq. check for any uax#29 differences (i think we are unaffected)

Right, I'm not sure about this - I plan on upgrading the JFlex test cases that implement the
uax#29 rules and test against the data Unicode.org provides.  I should know more once that's
done.
                
> Support Unicode 6.1.0
> ---------------------
>
>                 Key: LUCENE-3747
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3747
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: modules/analysis
>    Affects Versions: 3.5, 4.0
>            Reporter: Steven Rowe
>            Priority: Minor
>
> Now that Unicode 6.1.0 has been released, Lucene/Solr should support it.
> JFlex trunk now supports Unicode 6.1.0.
> Tasks include:
> * Upgrade ICU4J to v49 (after it's released, on 2012-03-21, according to http://icu-project.org).
> * Use {{icu}} module tools to regenerate the supplementary character additions to JFlex
grammars.
> * Version the JFlex grammars: copy the current implementations to {{*Impl3<X>}};
cause the versioning tokenizer wrappers to instantiate this version when the {{Version}} c-tor
param is in the range 3.1 to the version in which these changes are released (excluding the
range endpoints); then change the specified Unicode version in the non-versioned JFlex grammars
from 6.0 to 6.1.
> * Regenerate JFlex scanners, including {{StandardTokenizerImpl}}, {{UAX29URLEmailTokenizerImpl}},
and {{HTMLStripCharFilter}}.

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