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From "Uwe Schindler (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2015) ASCIIFoldingFilter: expose folding logic + small improvements to ISOLatin1AccentFilter
Date Thu, 29 Oct 2009 20:25:59 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2015?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12771592#action_12771592
] 

Uwe Schindler commented on LUCENE-2015:
---------------------------------------

I would leave ISOLatin1AccentFilter as it is. No version logic for already deprecated classes,
they are deprecated, so no support any more. Normally we would have removed it in 3.0, it
is really only be there to support old indexes, so no new features. If until now, nobody complained,
we do not need to care. Maybe the modifications were so special, that only some of the term
in such indexes were affected and nobody realized that difference.

> ASCIIFoldingFilter: expose folding logic + small improvements to ISOLatin1AccentFilter
> --------------------------------------------------------------------------------------
>
>                 Key: LUCENE-2015
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2015
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Analysis
>            Reporter: C├ędrik LIME
>            Priority: Minor
>         Attachments: ASCIIFoldingFilter-no_formatting.patch, Filters.patch, ISOLatin1AccentFilter.patch
>
>
> This patch adds a couple of non-ascii chars to ISOLatin1AccentFilter (namely: left &
right single quotation marks, en dash, em dash) which we very frequently encounter in our
projects. I know that this class is now deprecated; this improvement is for legacy code that
hasn't migrated yet.
> It also enables easy access to the ascii folding technique use in ASCIIFoldingFilter
for potential re-use in non-Lucene-related code.

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