[Haskell-cafe] Porting setlocale to Windows

Sven Bartscher sven.bartscher at weltraumschlangen.de
Thu Jan 1 22:57:37 UTC 2015


I assume that "do nothing", means that a call to 
`setLocale LC_MESSAGES x` always returns Nothing (which may confuse
some applications, but maybe it does in the right way).

Then there's the question left, what categoryToCInt does. I could
change it's signature to `Category -> Maybe CInt`, but that would mean
breaking the API. Instead I could make say 
`categoryToCInt LC_MESSAGES = -1`, which may confuse some applications
which assume that categoryToCInt returns valid integers. But I guess,
that's not that much of a problem, since categoryToCInt is not really
often used in packages other than setlocale itself.

Regards
Sven

On Fri, 2 Jan 2015 00:13:58 +0200
Alexey Shmalko <rasen.dubi at gmail.com> wrote:

> Hi,
> 
> The third option is to make `setLocale LC_MESSAGES` do nothing. I believe,
> it's perfectly acceptable in this case and is much better than making it an
> error.
>
> Regards,
> Alexey
> 
> 2015-01-01 21:45 GMT+02:00 Sven Bartscher <
> sven.bartscher at weltraumschlangen.de>:
> 
> > Greetings,
> >
> > A while ago I took over the packages setlocale.
> > I now would like to make it portable to windows, but came across the
> > problem that LC_MESSAGES isn't defined on mingw.
> > I thought about these options, for solving this:
> >  - Not defining LC_MESSAGES, which would mean, every package using
> >    LC_MESSAGES wouldn't be portable to windows.
> >  - Defining LC_MESSAGES as some an error, which would basically have
> >    the same problem as above.
> >
> > I don't like either of these solutions, but don't know any better.
> > I would be happy about suggestions.
> >
> > Regards
> > Sven
> >
> > _______________________________________________
> > Haskell-Cafe mailing list
> > Haskell-Cafe at haskell.org
> > http://www.haskell.org/mailman/listinfo/haskell-cafe
> >
> >
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