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https://issues.apache.org/jira/browse/LUCENE-8273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16457066#comment-16457066
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Mike Sokolov commented on LUCENE-8273:
--------------------------------------

Cool! I haven't read the patch carefully, but I looked at the tests, and I
see RandomChains test so this is probably covered, but I was wondering
about the case you mentioned earlier where say there is a multi-token
synonym and shouldFilter() is true for the first token and false for the
second. I guess the filter just does not apply the synonym then?

On Fri, Apr 27, 2018 at 12:44 PM, Alan Woodward (JIRA) <j...@apache.org>



> 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
>
>
> 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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