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From "Mark Miller (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (LUCENE-1390) add ISOLatinAccentFilter and deprecate ISOLatin1AccentFilter
Date Wed, 03 Dec 2008 23:01:47 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-1390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12653031#action_12653031
] 

markrmiller@gmail.com edited comment on LUCENE-1390 at 12/3/08 3:00 PM:
--------------------------------------------------------------

In regards to deprecating ISOLatin1AccentFilter: what are the back compatibility issues? What
is the likelyhood that a forced upgrade to this class would lose words in an older index without
a reindex?

If its a real concern, we could keep the deprecated class until 3.0, but that still wouldn't
help anyone that wanted to move to 2 from 3 without a reindex (if thats something we will
maintain on 3).

So I'm just exploring for comments, but maybe we leave both classes?

      was (Author: markrmiller@gmail.com):
    In regards to deprecating ISOLatin1AccentFilter: what are the back compatibility issues?
What is the likelyhood that a forced upgrade to this class would lose words in the index without
a reindex?

If its a real concern, we could keep the deprecated class until 3.0, but that still wouldn't
help anyone that wanted to move to 3 from 2 without a reindex (if thats something we will
maintain on 3).

So I'm just exploring for comments, but maybe we leave both classes?
  
> add ISOLatinAccentFilter and deprecate ISOLatin1AccentFilter
> ------------------------------------------------------------
>
>                 Key: LUCENE-1390
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1390
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Analysis
>         Environment: any
>            Reporter: Andi Vajda
>            Assignee: Mark Miller
>            Priority: Minor
>             Fix For: 2.9
>
>         Attachments: ASCIIFoldingFilter.patch, ASCIIFoldingFilter.patch, ISOLatinAccentFilter.java
>
>
> The ISOLatin1AccentFilter is removing accents from accented characters in the ISO Latin
1 character set.
> It does what it does and there is no bug with it.
> It would be nicer, though, if there was a more comprehensive version of this code that
included not just ISO-Latin-1 (ISO-8859-1) but the entire Latin 1 and Latin Extended A unicode
blocks.
> See: http://en.wikipedia.org/wiki/Latin-1_Supplement_unicode_block
> See: http://en.wikipedia.org/wiki/Latin_Extended-A_unicode_block
> That way, all languages using roman characters are covered.
> A new class, ISOLatinAccentFilter is attached. It is intended to supercede ISOLatin1AccentFilter
which should get deprecated.

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