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Date: Sat, 15 Aug 2009 10:09:14 -0700 (PDT)
From: "Robert Muir (JIRA)" <jira@apache.org>
To: java-dev@lucene.apache.org
Subject: [jira] Commented: (LUCENE-1813) Add option to ReverseStringFilter
 to mark reversed tokens
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    [ https://issues.apache.org/jira/browse/LUCENE-1813?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12743740#action_12743740 ] 

Robert Muir commented on LUCENE-1813:
-------------------------------------

andrzej, the reverse() methods are public, can you supply default impls (withMark=false) just in the case that someone is using them?

alternatively, maybe the reverse() methods could stay the same, and the marking could happen in incrementToken() ?


> Add option to ReverseStringFilter to mark reversed tokens
> ---------------------------------------------------------
>
>                 Key: LUCENE-1813
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1813
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: contrib/analyzers
>    Affects Versions: 2.9
>            Reporter: Andrzej Bialecki 
>            Assignee: Robert Muir
>         Attachments: reverseMark.patch
>
>
> This patch implements additional functionality in the filter to "mark" reversed tokens with a special marker character (Unicode 0001). This is useful when indexing both straight and reversed tokens (e.g. to implement efficient leading wildcards search).

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