Date: Sat, 6 Aug 2016 11:09:24 -0400 (EDT) From: Benjamin Kaduk <kaduk@MIT.EDU> To: Baptiste Daroussin <bapt@FreeBSD.org> Cc: "Greg 'groggy' Lehey" <grog@FreeBSD.org>, Andrey Chernov <ache@FreeBSD.org>, Mark Martinec <Mark.Martinec+freebsd@ijs.si>, freebsd-current@FreeBSD.org Subject: Re: date(1) default format changed between 10.3 and 11.0-BETA3 Message-ID: <alpine.GSO.1.10.1608061107470.5272@multics.mit.edu> In-Reply-To: <20160806100053.5fpf27pcgona7czp@ivaldir.etoilebsd.net> References: <dc9483611fd37e051fb68532daf10066@mailbox.ijs.si> <3629a441-ee6d-2407-fa13-5ebd8db8d802@freebsd.org> <000c29ee0f3dbd1d433c565023d69e25@mailbox.ijs.si> <a260a332-0c30-2338-bdd8-840524e8bfd8@freebsd.org> <f51cd89227047ff9249d9ecd68cf1646@mailbox.ijs.si> <279e9b67-da23-cdd6-3a77-b084ad8269eb@freebsd.org> <e851f0064ec13ff99d64e63b74f10d58@mailbox.ijs.si> <4a454eef-55ae-b90d-4441-2aa9708fc747@freebsd.org> <20160806041536.GL86883@eureka.lemis.com> <20160806100053.5fpf27pcgona7czp@ivaldir.etoilebsd.net>
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On Sat, 6 Aug 2016, Baptiste Daroussin wrote: > On Sat, Aug 06, 2016 at 02:15:36PM +1000, Greg 'groggy' Lehey wrote: > > On Friday, 5 August 2016 at 18:56:33 +0300, Andrey A. Chernov wrote: > > > On 05.08.2016 18:44, Mark Martinec wrote: > > >> On 2016-08-05 17:23, Andrey Chernov wrote: > > >> > > >> POSIX does say that the default format should be the same > > >> as with "+%a %b %e %H:%M:%S %Z %Y". > > >> It also says that %a and %b are locale's abbreviated names. > > > > > > It is true for _POSIX_ locale only, as I already say. en_US.* is not > > > POSIX or C locale. > > > > It still violates POLA. > > > I really do not think that it violates POLA fiven that the behaviour you are > expecting is still available in the default configurtion that is still POSIX. Regardless, at a new major release is precisely when it is permissible to break POLA. > Set LC_TIME to C and then you are back on your behaviour (and this is the > default when you install FreeBSD). > > locales should be seen as tzdata for exemple, they are a moving target > complicated to handle for every locale we do support: 78 for 11.0-RELEASE and > 193 if we do count the encoding variants. locales are updated very often (for > exemple cldr unicode make a new release of the data every 8 month or so) As I understand it, your change will improve the maintainability of locales in FreeBSD in the future, which justifies a POLA break at the release boundary. -Ben
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