[jira] Commented: (LUCENE-2015) ASCIIFoldingFilter: expose folding logic + small improvements to ISOLatin1AccentFilter

["Robert Muir (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCENE-2015?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12771481#action_12771481 ] 

Robert Muir commented on LUCENE-2015:
-------------------------------------

Cédrik, is it possible to provide a patch without the formatting changes?

I am having trouble seeing the changes you made to ASCIIFoldingFilter.

btw, I think ISOLatin1AccentFilter only stays around for back compat to support old indexes, in my opinion we should not modify it for this reason.

> 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: Cédrik LIME
>            Priority: Minor
>         Attachments: Filters.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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