[Bug localedata/13825] New: Would like way to override 12h/24h locale data

[Bug localedata/13825] New: Would like way to override 12h/24h locale data

[hadess at hadess dot net]

http://sourceware.org/bugzilla/show_bug.cgi?id=13825

             Bug #: 13825
           Summary: Would like way to override 12h/24h locale data
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: localedata
        AssignedTo: unassigned@sourceware.org
        ReportedBy: hadess@hadess.net
                CC: libc-locales@sources.redhat.com
    Classification: Unclassified


glibc's locale data doesn't offer a way for users to select 12h/24h display
based on user preference. The glibc doesn't offer that ability meaning that
some applications will use the locale default, and some applications would
respect the user's preference.

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[Bug localedata/13825] Would like way to override 12h/24h locale data

[neleai at seznam dot cz]

https://sourceware.org/bugzilla/show_bug.cgi?id=13825

Ondrej Bilka <neleai at seznam dot cz> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |neleai at seznam dot cz
           Severity|normal                      |enhancement

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[Bug localedata/13825] Would like way to override 12h/24h locale data

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=13825

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|                            |security-

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[Bug localedata/13825] allow for user overriding of specific locale fields

[vapier at gentoo dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=13825

Mike Frysinger <vapier at gentoo dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |WONTFIX
            Summary|Would like way to override  |allow for user overriding
                   |12h/24h locale data         |of specific locale fields

--- Comment #1 from Mike Frysinger <vapier at gentoo dot org> ---
i don't think we'll do this.  you could instead create your own locale and set
it to that.

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[Bug localedata/13825] allow for user overriding of specific locale fields

[hadess at hadess dot net]

https://sourceware.org/bugzilla/show_bug.cgi?id=13825

--- Comment #2 from Bastien Nocera <hadess at hadess dot net> ---
(In reply to Mike Frysinger from comment #1)
> i don't think we'll do this.  you could instead create your own locale and
> set it to that.

Seeing as we can't change the locale of running applications, I don't see how
this fixes our problem.

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[Bug localedata/13825] allow for user overriding of specific locale fields

[carlos at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=13825

Carlos O'Donell <carlos at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |carlos at redhat dot com

--- Comment #3 from Carlos O'Donell <carlos at redhat dot com> ---
(In reply to Bastien Nocera from comment #2)
> (In reply to Mike Frysinger from comment #1)
> > i don't think we'll do this.  you could instead create your own locale and
> > set it to that.
> 
> Seeing as we can't change the locale of running applications, I don't see
> how this fixes our problem.

Sure you can you can use setlocale() or uselocale(). We might also use a
tunable to flip the locale in the future.

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[Bug localedata/13825] allow for user overriding of specific locale fields

[vapier at gentoo dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=13825

--- Comment #4 from Mike Frysinger <vapier at gentoo dot org> ---
(In reply to Bastien Nocera from comment #2)

locales are selected by env vars.  so once you generate your custom locale and
point your LANG/etc... at it, then all all programs started after that point
get the updated settings.  this is also how locales simply work today: most
programs will run setlocale *once* at startup and then never again.

env vars themselves don't propagate into already running programs, but i don't
think we even want a knob that would take effect immediately -- it would mean
that every locale related call would have to check the FS for any override and
that completely negates the work down to optimize locales.  plus, even that
would not affect programs immediately ... you're relying on the programs not
using & caching there results.

allowing the knobs to change arbitrarily external to the program is also a bad
idea: it violates the status quo in POSIX and every other system thus far, and
it's inherently racy.  if i want to update multiple fields, programs might have
loaded one or two fields before your update, and then other ones after, and now
they're out of sync.

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