From: KOSAKI Motohiro <kosaki.motohiro@...>
Date: 2013-05-06T06:56:09+09:00
Subject: [ruby-core:54810] Re: Call setlocale(LC_ALL, "") instead of setlocale(LC_CTYPE, "")

>> I think it is acceptable that make ruby more robust.
>> (i.e. fixing above failures and errors are ok.)
>
>> But changing setlocale invocation to LC_ALL is too dangerous.
>> The change affects not only ruby itself but also other extension libraries.
>
> Precisely my point and precisely why setlocale should be called with
> LC_ALL.  It�s impossible to write extensions tat use locale-dependent
> functionality unless Ruby actively supports it.  Your argument held
> equally true before setlocale(LC_CTYPE) was added, but still it was
> added.

Please elaborate more. Why don't you use strcoll_l() and/or other
thread locale aware functions?

http://pubs.opengroup.org/onlinepubs/9699919799/functions/strcoll.html

Why don't you use temporary locale changes such as:

old_locale = setlocale(LC_COLLATE, NULL);
setlocale(LC_COLLATE, your_faborite_locale);

strcoll(blah blah);

setlocaleLC_COLLATE, old_locale);