[jira] Issue Comment Edited: (LUCENE-1846) More Locale problems in Lucene

["Uwe Schindler (JIRA)" <ji...@apache.org>]

    [ 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:
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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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