[jira] Reopened: (LUCENE-1963) ArabicAnalyzer: Lowercase before Stopfilter

["Robert Muir (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-1963?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Muir reopened LUCENE-1963:
---------------------------------


Mark, I think the problem is really that I overlooked this use case in LUCENE-1758, because Arabic is not case sensitive.

It won't affect the default usage of the Analyzer (where all the stopwords are in Arabic and lowercase is a no-op).

I am going to also set fix for 2.9.1 and give a day or two for people to comment if they disagree with applying to 2.9 branch.

> ArabicAnalyzer: Lowercase before Stopfilter
> -------------------------------------------
>
>                 Key: LUCENE-1963
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1963
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: contrib/analyzers
>    Affects Versions: 2.9
>            Reporter: Robert Muir
>            Assignee: Robert Muir
>            Priority: Trivial
>             Fix For: 2.9.1, 3.0
>
>         Attachments: LUCENE-1963.patch, LUCENE-1963.patch
>
>
> ArabicAnalyzer lowercases text in case you have some non-Arabic text around.
> It also allows you to set a custom stopword list (you might augment the Arabic list with some English ones, for example).
> In this case its helpful for these non-Arabic stopwords, to lowercase before stopfilter.

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