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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (LUCENE-2019) map unicode process-internal codepoints to replacement character
Date Thu, 29 Oct 2009 18:39:59 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2019?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12771541#action_12771541
] 

Robert Muir edited comment on LUCENE-2019 at 10/29/09 6:39 PM:
---------------------------------------------------------------

easiest way to get the complete list: http://unicode.org/cldr/utility/list-unicodeset.jsp?a=%5B:Noncharacter_Code_Point=True:%5D


      was (Author: rcmuir):
    easiest way to get the complete list: http://unicode.org/cldr/utility/list-unicodeset.jsp?a=[:Noncharacter_Code_Point=True:]
  
> map unicode process-internal codepoints to replacement character
> ----------------------------------------------------------------
>
>                 Key: LUCENE-2019
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2019
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Index
>            Reporter: Robert Muir
>            Priority: Minor
>
> A spinoff from LUCENE-2016.
> There are several process-internal codepoints in unicode, we should not store these in
the index.
> Instead they should be mapped to replacement character (U+FFFD), so they can be used
process-internally.
> An example of this is how Lucene Java currently uses U+FFFF process-internally, it can't
be in the index or will cause problems. 

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