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From "Mike Sokolov (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (LUCENE-5620) LowerCaseFilter.preserveOriginal
Date Sun, 20 Apr 2014 21:49:15 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-5620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13975292#comment-13975292
] 

Mike Sokolov edited comment on LUCENE-5620 at 4/20/14 9:49 PM:
---------------------------------------------------------------

I tested with some analysis chains, and I realized the new CaptureAttribute will need a stack
of term/position states in order to handle multiple preserve/restore pairs either in sequence
or nested.


was (Author: sokolov):
I tested with some analysis chains, and I realized this will need a stack of term/position
states in order to handle multiple preserve/restore pairs either in sequence or nested.

> LowerCaseFilter.preserveOriginal
> --------------------------------
>
>                 Key: LUCENE-5620
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5620
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Mike Sokolov
>         Attachments: LUCENE-5620.patch, LUCENE-5620.patch
>
>
> Following closely the model of LUCENE-5437 (which worked on ASCIIFoldingFilter), this
patch adds the ability to preserve the original token to LowerCaseFilter.  This is useful
if you want an all-lowercase search term to match without regard to case, while search terms
with uppercase letters match in a case-sensitive manner. 



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