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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-8273) Add a ConditionalTokenFilter
Date Tue, 08 May 2018 13:23:00 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-8273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16467407#comment-16467407
] 

Robert Muir commented on LUCENE-8273:
-------------------------------------

For the new TermExclusionFilterFactory:

{code}
public static final String EXCLUDED_TOKENS = "excludeFile";
{code}

KeywordMarkerFilterFactory currently uses a different parameter name: "protected". So does
WordDelimiterFilterFactory (which I think was the one that inspired this JIRA issue). Maybe
we want it to be consistent, to support migrating away from that stuff?

> Add a ConditionalTokenFilter
> ----------------------------
>
>                 Key: LUCENE-8273
>                 URL: https://issues.apache.org/jira/browse/LUCENE-8273
>             Project: Lucene - Core
>          Issue Type: New Feature
>            Reporter: Alan Woodward
>            Priority: Major
>         Attachments: LUCENE-8273.patch, LUCENE-8273.patch, LUCENE-8273.patch, LUCENE-8273.patch,
LUCENE-8273.patch, LUCENE-8273.patch, LUCENE-8273.patch
>
>
> Spinoff of LUCENE-8265.  It would be useful to be able to wrap a TokenFilter in such
a way that it could optionally be bypassed based on the current state of the TokenStream.
 This could be used to, for example, only apply WordDelimiterFilter to terms that contain
hyphens.



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