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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2094) Prepare CharArraySet for Unicode 4.0
Date Tue, 24 Nov 2009 14:53:39 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12781965#action_12781965
] 

Robert Muir commented on LUCENE-2094:
-------------------------------------

simon yeah,

I guess what I don't know, is if in the JDK Character.foo(int) is the same underlying stuff
as Character.foo(char)
in trunk ICU there is not even char-based methods, it is all int, where its a trie lookup,
with a special fast-path array for linear access to Latin-1


> 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, 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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