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Date: Sat, 17 Apr 2010 10:50:24 -0400 (EDT)
From: "Robert Muir (JIRA)" <jira@apache.org>
To: java-dev@lucene.apache.org
Subject: [jira] Updated: (LUCENE-2399) Add support for ICU's Normalizer2
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     [ https://issues.apache.org/jira/browse/LUCENE-2399?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Muir updated LUCENE-2399:
--------------------------------

    Attachment: LUCENE-2399.patch

I made the filter non-final, and only incrementToken final instead.

This way we can implement things like LUCENE-1343, which want to do things like removing accents in a way that respects normalization (e.g. removes decomposed and composed forms).

So we can just extend this, and pass along a statically loaded InputStream for the .nrm file to its ctor and be done with it. 


> Add support for ICU's Normalizer2
> ---------------------------------
>
>                 Key: LUCENE-2399
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2399
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: contrib/*
>    Affects Versions: 3.1
>            Reporter: Robert Muir
>            Assignee: Robert Muir
>             Fix For: 3.1
>
>         Attachments: LUCENE-2399.patch, LUCENE-2399.patch, LUCENE-2399.patch, LUCENE-2399.patch
>
>
> While there are separate Case Folding, Normalization, and Ignorable-removal filters in LUCENE-1488,
> the new ICU Normalizer2 API does this all at once with nfkc_cf (based on the new NFKC_Casefold property in Unicode).
> This is great, because it provides a ton of unicode functionality that is really needed.
> And the new Normalizer2 API takes CharSequence and writes to Appendable...

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