Support Unicode 6.1.0
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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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