svn commit: r290637 - head/lib/libc/locale

[Andrey Chernov]

On 10.11.2015 16:36, Baptiste Daroussin wrote:
> On Tue, Nov 10, 2015 at 04:20:38PM +0300, Andrey Chernov wrote:
>> On 10.11.2015 16:04, Baptiste Daroussin wrote:
>>> On Tue, Nov 10, 2015 at 03:48:52PM +0300, Andrey Chernov wrote:
>>>> On 10.11.2015 11:11, Baptiste Daroussin wrote:
>>>>> Author: bapt
>>>>> Date: Tue Nov 10 08:11:27 2015
>>>>> New Revision: 290637
>>>>> URL: https://svnweb.freebsd.org/changeset/base/290637
>>>>>
>>>>> Log:
>>>>>   return "US-ASCII" instead of "POSIX" for "C" and "POSIX" locales
>>>>>   as it used to be in previous version of the locales. Returning
>>>>>   "POSIX" has too many fallouts.
>>>>
>>>> You can return "ANSI_X3.4-1968" (another name of "US-ASCII") to be
>>>> different with real US-ASCII. It is what glibc returns for C/POSIX
>>>> locale and most ports expected, being linux-oriented.
>>>>
>>> I thought about it, but in the end it is probably safer for now that nl_langinfo
>>> return US-ASCII as it did in the past, to reduce breakage with FreeBSD only code
>>> that maybe be existing ou there.
>>
>> All FreeBSD code I know never check locale this way. IMHO probability of
>> potential danger to meet some linux-oriented port with this check is
>> much much higher than to meet similar FreeBSD only code in the wild. In
>> any case, changing collate order from A-Za-z to aA-zZ we do just now
>> have much higher probability to break unknown FreeBSD only code, so one
>> breaking change can go with other one together.
>>
> That is true, except that the new collation thing is invalidated as soon as you
> set LC_COLLATE=C which bring your back to A-Za-z. So you have a workaround while
> changing the return value of nl_langinfo() is not workaroundable.

Well, forget my improper comparison with collate and see this bug in
action right now, in our port tcl8.6.4/unix/tclUnixInit.c:

See localeTable and comment above it, there is internal "ansi_x3.4-1968"
(i.e. POSIX locale), internal "ascii" and even no alias for our
"us-ascii" at all.

It gets info through nl_langinfo(CODESET), lowercased. I.e. not using
"ANSI_X3.4-1968" breaks all tcl ports right now, this is more essential
than hypothetical private FreeBSD only code no one see.

-- 
http://ache.vniz.net/

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