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From "Steven Rowe (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-3747) Support Unicode 6.1.0
Date Thu, 02 Feb 2012 17:54:53 GMT
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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