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https://issues.apache.org/jira/browse/JENA-1488?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16403924#comment-16403924
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ASF GitHub Bot commented on JENA-1488:
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Github user kinow commented on the issue:
https://github.com/apache/jena/pull/385
+1 @rvesse comments. And +1 for the great PR @xristy !!! Tested with the
WIP `SelectiveFoldingFilter` for JENA-1488, and it worked like a charm!!!!!
:tada: :tada: :tada:
First created a normal JenaText configuration, and everything worked with
no issues. Then replaced my `analyzer` by a `DefinedAnalyzer`... had a few
hiccups forgetting to create a tokenizer, and had to update the filter to use a
`CharArraySet` (much better that way I think).
But in the end got the query working as expected. Confirmed with Luke that
the contents were indexed correctly with the new filter... did a quick search
in Luke, then used Fuseki, and everything worked as expected.
Once this one is merged, we'll be ready for another PR for JENA-1488. In
the meantime, I will start working on documentation and tests !
Thanks!
Bruno
> SelectiveFoldingFilter for jena-text
> ------------------------------------
>
> Key: JENA-1488
> URL: https://issues.apache.org/jira/browse/JENA-1488
> Project: Apache Jena
> Issue Type: Improvement
> Components: Text
> Affects Versions: Jena 3.6.0
> Reporter: Osma Suominen
> Assignee: Bruno P. Kinoshita
> Priority: Major
>
> Currently there's some support for accent folding in jena-text, because
> Lucene provides an ASCIIFoldingFilter. When this filter is enabled, a search
> for "deja vu" will match the literal "déjà vu" in the data.
> But we can't use it here at the National Library of Finland (for Finto.fi /
> Skosmos), because it folds too much! In the Finnish alphabet, in addition to
> the Latin a-z (which are in ASCII) we use the letters åäö and these should
> not be folded to ASCII. So we need a Lucene analyzer that can be configured
> with an exclude list, something like
>
> new SelectiveFoldingFilter(String excludeChars)
>
> and that can be also be configured via the Jena assembler just like other
> analyzers supported by jena-text.
>
> This was also briefly discussed on the skosmos-users mailing list:
> [https://groups.google.com/d/msg/skosmos-users/x3zR_uRBQT0/Q90-O_iDAQAJ]
> Apparently Norwegians have the same problem...
> I've discussed this with [~kinow] and he has some initial code to implement
> this feature, so I think we can turn this into a PR fairly soon.
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