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https://issues.apache.org/jira/browse/LUCENE-5224?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Muir updated LUCENE-5224:
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Attachment: LUCENE-5224.patch
Patch recognizing ICONV, OCONV, and IGNORE keywords.
> org.apache.lucene.analysis.hunspell.HunspellDictionary should implement ICONV
> and OCONV lines in the affix file
> ---------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-5224
> URL: https://issues.apache.org/jira/browse/LUCENE-5224
> Project: Lucene - Core
> Issue Type: Improvement
> Components: modules/analysis
> Affects Versions: 4.0, 4.4
> Reporter: George Rhoten
> Assignee: Robert Muir
> Attachments: LUCENE-5224.patch
>
>
> There are some Hunspell dictionaries that need to emulate Unicode
> normalization and collation in order to get the correct stem of a word. The
> original Hunspell provides a way to do this with the ICONV and OCONV lines in
> the affix file. The Lucene HunspellDictionary ignores these lines right now.
> Please support these keys in the affix file.
> This bit of functionality is briefly described in the hunspell man page
> http://manpages.ubuntu.com/manpages/lucid/man4/hunspell.4.html
> This functionality is practically required in order to use a Korean
> dictionary because you want only some of the Jamos of a Hangul character
> (grapheme cluster) when using stemming. Other languages will find this to be
> helpful functionality.
> Here is an example for a .aff file:
> {code}
> ICONV 각 각
> ...
> OCONV 각 각
> {code}
> Here is the same example escaped.
> {code}
> ICONV \uAC01 \u1100\u1161\u11A8
> ...
> OCONV \u1100\u1161\u11A8 \uAC01
> {code}
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