2014-07-11 5:10 GMT+09:00 Jeff King <peff@xxxxxxxx>:
> On Wed, Jul 09, 2014 at 11:46:14AM +0100, Peter Krefting wrote:
>
>> Jeff King:
>>
>> >I did some digging, and I think the public API is setlocale with a NULL
>> >parameter, like:
>> >
>> > printf("%s\n", setlocale(LC_MESSAGES, NULL));
>> >
>> >That still will end up like "en_US.UTF-8", though;
>>
>> And it only yields the highest-priority language, I think.
>
> I wasn't clear on whether POSIX locale variables actually supported
> multiple languages with priorities. I have never seen that, though the
> original commit message indicated that LANGUAGE=x:y was a thing (I
> wasn't sure if that was a made-up thing, or something that libc actually
> supported).
>
>> Debian's website has a nice writeup on the subject:
>> http://www.debian.org/intro/cn#howtoset
>
> That seems to be about language settings in browsers, which are a much
> richer set of preferences than POSIX locales (I think).
>
> It would not be wrong to have that level of configuration for git's http
> requests, but I do not know if it is worth the effort. Mapping the
> user's gettext locale into an accept-language header seems like a
> straightforward way to communicate to the other side what the client is
> using to show errors (so that errors coming from the server can match).
Thanks for you advice. I'll write a path to use both of
setlocale(LC_MESSAGES, NULL) and getenv("LANGUAGE") to get the user's
preferred language. setlocale(LC_MESSAGES, NULL) is quite nice way
because it takes LC_ALL, LC_MESSAGES and LANG into account, but not
LANGUAGE. I think we should take also LANGUAGE into account as gettext
does. [1]
[1]: http://www.gnu.org/software/gettext/manual/gettext.html#Locale-Environment-Variables
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