Date: Tue, 3 Jul 2001 10:00:24 +0200
To: Jacques Garrigue <garrigue at kurims.kyoto-u.ac.jp>
Cc: luther at dpt-info.u-strasbg.fr, lablgtk at kaba.or.jp
Subject: Re: [Caml-list] Re: postscript, printf module and coma separator.
Message-ID: <20010703100024.A24617 at lambda.u-strasbg.fr>
References: <20010608183321.A14580 at lambda.u-strasbg.fr> <20010611193053.B7177 at clipper.ens.fr> <20010612130358.A25491 at lambda.u-strasbg.fr> <20010703113017D.garrigue at kurims.kyoto-u.ac.jp>
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In-Reply-To: <20010703113017D.garrigue at kurims.kyoto-u.ac.jp>
From: Sven LUTHER <luther at dpt-info.u-strasbg.fr>
Sender: Sven LUTHER <luther at lambda.u-strasbg.fr>

On Tue, Jul 03, 2001 at 11:30:17AM +0900, Jacques Garrigue wrote:
> From: Sven LUTHER <luther at dpt-info.u-strasbg.fr>
> Subject: [Caml-list] Re: postscript, printf module and coma separator.
> Date: Tue, 12 Jun 2001 13:03:58 +0200
> 
> > > > Unfortunately, i have the LANG variable set to fr_FR, and as thus fprintf
> > > > outputs floats as :
> > > > 
> > > > 3,14
> > > > 
> > > > but this is not a valid postscript coordinate. 
> > > 
> > > That seems strange. I have also LANG and LC_CTYPE set to fr_FR, and I do
> > > not have the problem. And that under Linux (GNU libc) and Solaris. There is
> > > the problem with LablGtk, because GMain.Main.init sets the locale (if you
> > > use the toplevel, you can not even enter a new non-integer float, since the
> > > ascii -> number fails on the `.'). So I think the bug is inside LablGtk,
> > > and should be corrected there (maybe an optional parameter to change the
> > > environment variable before gtk_set_locale).
> 
> Sorry for the very slow answer.
> No, I don't believe that LablGTK does anything wrong: you have to call
> setlocale if you want to make possible any internationalization of
> your application, including fonts. In theory setting LC_NUMERIC to C
> should be enough to solve the problem, but this can be hairy.
> 
> For hard cases, the last snapshot of lablgtk (2001-05-23) adds a
> ?nolocale option to GMain.Main.init, which you can use as a quick hack
> to disable the call to setlocale.

Note, i tried setting LANG to "" empty before doing the writting, but this
didn't work, i don't understand why. I guess it is because the env var will
only be taken in account at app launch time ?

I will try the nolocale option, but maybe a wrapping of the Printf & co module
would be nice,

In any case, we should have the same behavior that ocaml, this is very
confusing when it is not so.

Friendly,

Sven Luther
> 
> Jacques