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Date:      Sat, 21 Nov 2015 01:35:41 +0100
From:      Baptiste Daroussin <bapt@FreeBSD.org>
To:        Jilles Tjoelker <jilles@stack.nl>
Cc:        "Sergey V. Dyatko" <sergey.dyatko@gmail.com>, freebsd-current@freebsd.org
Subject:   Re: /bin/ls  formatting broken for non-C(?) locales
Message-ID:  <20151121003541.GF21071@ivaldir.etoilebsd.net>
In-Reply-To: <20151120122352.GA5751@stack.nl>
References:  <20151120110556.6e20a71f@laptop.minsk.domain> <20151120104253.GA21071@ivaldir.etoilebsd.net> <20151120110212.GB21071@ivaldir.etoilebsd.net> <20151120122352.GA5751@stack.nl>

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On Fri, Nov 20, 2015 at 01:23:52PM +0100, Jilles Tjoelker wrote:
> On Fri, Nov 20, 2015 at 12:02:13PM +0100, Baptiste Daroussin wrote:
> > On Fri, Nov 20, 2015 at 11:42:53AM +0100, Baptiste Daroussin wrote:
> > > On Fri, Nov 20, 2015 at 11:05:56AM +0300, Sergey V. Dyatko wrote:
> > > > subj. http://i.imgur.com/F9QO29l.png
> > > > it is on head@r290573:
> > > > WTR:
> > > > env LC_ALL=3Duk_UA.UTF-8 ls -la /usr/ports/databases/ or env LC_ALL=
=3Dru_RU.UTF-8
> > > > ls -la /usr/ports/databases/
>=20
> > > > env LC_ALL=3DC ls -la /usr/ports/databases/ works fine
> > > > also on old stable/10 (r286868)  as I can see 'month' field length =
3 symbols=20
>=20
> > > Thanks for reporting, I can reproduce the issue with some other
> > > locales. The thing is there seems to be no standard for abbreviated
> > > length. Formerly we had a 3 character lenght for abbreviated month.
>=20
> > > We now use CLDR which seems to follow the abbreviated rules from IBM:
> > > "Each string must be of equal length and contain 5 characters or less"
>=20
> > > There are 2 possible fixes: either always pad those in the locale
> > > definition which seems wrong or modify ls so that it by itself pads
> > > properly.
>=20
> > > Neither posix nor ISO-14652 defines the length of the abbreviated form
>=20
> > > padding in the locales themself would be wrong so I do propose to
> > > pad in the ls command. And padding with 5 characters.
>=20
> > For the record glibc/linux had the same problem:
> > https://sourceware.org/bugzilla/show_bug.cgi?id=3D9859
>=20
> > "fixed" in coreutils (gnu ls) the way I propose to do for us
> > http://git.savannah.gnu.org/gitweb/?p=3Dcoreutils.git;a=3Dcommit;h=3D61=
2b647dd16d5abc03b295abe42d8b4a0fe660f7
>=20
> Coreutils fixed it slightly better: it calculates the maximum width of
> the abbreviated month names and pads to that (with a maximum of 5). In
> particular, this ensures that the output does not change for locales
> that have 3-character abbreviations, such as the POSIX locale. I think
> this is valuable.
>=20
> They also keep the list of month names from this calculation and they
> say this speeds up ls noticeably compared to having strftime() expand %b
> for every file.

Here is what I do propose (sorry for the ugly pad_to_col name, if one has b=
etter
please share :D

https://reviews.freebsd.org/D4239

Best regards,
Bapt

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