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From "Uwe Schindler (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (LUCENE-1846) More Locale problems in Lucene
Date Sun, 23 Aug 2009 09:51:59 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-1846?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12746579#action_12746579
] 

Uwe Schindler edited comment on LUCENE-1846 at 8/23/09 2:51 AM:
----------------------------------------------------------------

Patch.

The changes in DateTools may affect users with very strange default locales that indexed with
prior Lucene versions, but this is unlikely a problem, as the whole sorting may be broken
already.

Should I add a note to CHANGES.txt?

      was (Author: thetaphi):
    Patch.

The changes in DateField may affect users with very strange default locales that indexed with
prior Lucene versions, but this is unlikely a problem, as the whole sorting may be broken
already.

Should I add a note to CHANGES.txt?
  
> More Locale problems in Lucene
> ------------------------------
>
>                 Key: LUCENE-1846
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1846
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Other
>            Reporter: Uwe Schindler
>            Assignee: Uwe Schindler
>            Priority: Trivial
>             Fix For: 2.9
>
>         Attachments: LUCENE-1846.patch
>
>
> This is a followup to LUCENE-1836: I found some more Locale problems in Lucene with Date
Formats. Even for simple date formats only consisting of numbers (like ISO dates), you should
always give the US locale. Because the dates in DateTools should sort according to String.compare(),
it is important, that the decimal digits are western ones. In some strange locales, this may
be different. Whenever you want to format dates for internal formats you exspect to behave
somehow, you should at least set the locale to US, which uses ASCII. Dates entered by users
and displayed to users, should be formatted according to the default or a custom specified
locale.
> I also looked for DecimalFormat (especially used for padding numbers), but found no problems.

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