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https://issues.apache.org/jira/browse/LUCENE-2069?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12779156#action_12779156
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Robert Muir commented on LUCENE-2069:
-------------------------------------
if you want my vote, it is that we treat issues like this as bugs and not do
all this Version stuff.
i supplied this patch (22KB versus 2KB) to show how even the smallest issue
creates more complexity.
Also, read the javadocs for what Version does, it reads just like a bug:
* As of 3.1, supplementary characters are properly lowercased.
I mean, honestly, its not like we provided a back compat mechanism for 3.0,
where this behavior changed for lots of contrib that uses String-based methods,
such as String toLowerCase (they return different results on JRE5 than JRE4)
but we can go either way, doesn't matter to me.
> fix LowerCaseFilter for unicode 4.0
> -----------------------------------
>
> Key: LUCENE-2069
> URL: https://issues.apache.org/jira/browse/LUCENE-2069
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Analysis
> Reporter: Robert Muir
> Priority: Minor
> Fix For: 3.1
>
> Attachments: LUCENE-2069.patch, LUCENE-2069.patch, LUCENE-2069.patch
>
>
> lowercase suppl. characters correctly.
> this only fixes the filter, the LowerCaseTokenizer is part of a more complex
> issue (CharTokenizer)
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