[jira] Updated: (LUCENE-2094) Prepare CharArraySet for Unicode 4.0

["Simon Willnauer (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-2094?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Simon Willnauer updated LUCENE-2094:
------------------------------------

    Attachment: LUCENE-2094.txt

This patch contains a testcase and a fixed CharArraySet. Yet this does not use Version to preserve compatibility. I bring this patch up to start the discussion how we should handle this particular case.
Using version would not be that much of an issue as all Analyzers using a CharArraySet do have the Version class already.


> Prepare CharArraySet for Unicode 4.0
> ------------------------------------
>
>                 Key: LUCENE-2094
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2094
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Analysis
>    Affects Versions: 1.9, 2.0.0, 2.1, 2.2, 2.3, 2.3.1, 2.3.2, 2.3.3, 2.4, 2.4.1, 2.4.2, 2.9, 2.9.1, 2.9.2, 3.0, 3.0.1, 3.1
>            Reporter: Simon Willnauer
>             Fix For: 3.1
>
>         Attachments: LUCENE-2094.txt
>
>
> CharArraySet does lowercaseing if created with the correspondent flag. This causes that  String / char[] with uncode 4 chars which are in the set can not be retrieved in "ignorecase" mode.

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