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From "Robert Muir (JIRA)" <>
Subject [jira] [Updated] (LUCENE-4072) CharFilter that Unicode-normalizes input
Date Fri, 25 May 2012 14:46:23 GMT


Robert Muir updated LUCENE-4072:

    Attachment: LUCENE-4072.patch

attached is the filter, turned into a patch.

however, I added an additional random test and it currently fails... will look into this more.
> CharFilter that Unicode-normalizes input
> ----------------------------------------
>                 Key: LUCENE-4072
>                 URL:
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: modules/analysis
>            Reporter: Ippei UKAI
>         Attachments: LUCENE-4072.patch,
> I'd like to contribute a CharFilter that Unicode-normalizes input with ICU4J.
> The benefit of having this process as CharFilter is that tokenizer can work on normalised
text while offset-correction ensuring fast vector highlighter and other offset-dependent features
do not break.
> The implementation is available at following repository:
> Unfortunately this is my unpaid side-project and cannot spend much time to merge my work
to Lucene to make appropriate patch. I'd appreciate it if anyone could give it a go. I'm happy
to relicense it to whatever that meets your needs.

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