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From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-248) [PATCH] Add StopFilter ignoreCase option
Date Thu, 27 Oct 2005 01:24:56 GMT
    [ http://issues.apache.org/jira/browse/LUCENE-248?page=comments#action_12356036 ] 

Yonik Seeley commented on LUCENE-248:
-------------------------------------

This patch is over a year old... looks like we need a refresh.

The implementation options  are this patch, or a new class (IgnoreCaseStopFilter).
I vote for this patch (modifying the current StopFilter), as the overhead of checking a boolean
variable should be negligible compared to a lookup in the stopset.

> [PATCH] Add StopFilter ignoreCase option
> ----------------------------------------
>
>          Key: LUCENE-248
>          URL: http://issues.apache.org/jira/browse/LUCENE-248
>      Project: Lucene - Java
>         Type: Improvement
>   Components: Analysis
>     Versions: 1.4
>  Environment: Operating System: other
> Platform: Other
>     Reporter: Grant Ingersoll
>     Assignee: Lucene Developers
>     Priority: Minor
>  Attachments: patch.txt
>
> Wanted to have the ability to ignore case in the stop filter.  In some cases, I
> don't want to have to lower case before passing through the stop filter, b/c I
> may need case preserved for other analysis further down the stream, yet I don't
> need the stopwords and I don't want to have to apply stopword filters twice.

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