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Posted to dev@lucene.apache.org by "Simon Willnauer (JIRA)" <ji...@apache.org> on 2009/07/31 16:28:14 UTC
[jira] Commented: (LUCENE-1689) supplementary character handling
[ https://issues.apache.org/jira/browse/LUCENE-1689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12737535#action_12737535 ]
Simon Willnauer commented on LUCENE-1689:
-----------------------------------------
Robert, are you still working on this issue? I have seen a couple of questions about supplementary character support on the mailinig-lists though - I will see how much time I have during the next weeks to get this going.
simon
> supplementary character handling
> --------------------------------
>
> Key: LUCENE-1689
> URL: https://issues.apache.org/jira/browse/LUCENE-1689
> Project: Lucene - Java
> Issue Type: Improvement
> Reporter: Robert Muir
> Priority: Minor
> Fix For: 3.1
>
> Attachments: LUCENE-1689_lowercase_example.txt, testCurrentBehavior.txt
>
>
> for Java 5. Java 5 is based on unicode 4, which means variable-width encoding.
> supplementary character support should be fixed for code that works with char/char[]
> For example:
> StandardAnalyzer, SimpleAnalyzer, StopAnalyzer, etc should at least be changed so they don't actually remove suppl characters, or modified to look for surrogates and behave correctly.
> LowercaseFilter should be modified to lowercase suppl. characters correctly.
> CharTokenizer should either be deprecated or changed so that isTokenChar() and normalize() use int.
> in all of these cases code should remain optimized for the BMP case, and suppl characters should be the exception, but still work.
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