Date: Thu, 16 Sep 2010 15:28:54 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: jmallett@FreeBSD.org Cc: svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org, src-committers@FreeBSD.org, obrien@FreeBSD.org, brde@optusnet.com.au Subject: Re: svn commit: r212374 - head/usr.bin/printf Message-ID: <20100916.152854.856152966653228621.imp@bsdimp.com> In-Reply-To: <AANLkTimJfeXdP_9caoqBg3WPxpbgLRutDzBw%2BXM6veo5@mail.gmail.com> References: <20100916084442.GB21622@dragon.NUXI.org> <20100916212043.N724@delplex.bde.org> <AANLkTimJfeXdP_9caoqBg3WPxpbgLRutDzBw%2BXM6veo5@mail.gmail.com>
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In message: <AANLkTimJfeXdP_9caoqBg3WPxpbgLRutDzBw+XM6veo5@mail.gmail.c=
om>
Juli Mallett <jmallett@FreeBSD.org> writes:
: On Thu, Sep 16, 2010 at 04:36, Bruce Evans <brde@optusnet.com.au> wro=
te:
: > WHat about the lesser burder on a character or two for putting -- i=
n the
: > synopsis where it is more visible:
: >
: > =A0 =A0 =A0 =A0printf [--] format [arguments ...]
: =
: Right, that's what I've been thinking about. For that matter, does
: printf(1) need to use getopt(3) at all? It seems like simply checkin=
g
: for "--" could be sufficient. Does POSIX require that it exit with a=
n
: error if it's given any options? At the very least, it seems like it=
: would be more productive to have printf(1) give unusually-helpful
: error messages (perhaps merely changing its usage output to match tha=
t
: synopsis) if it encounters a string beginning with '-' other than
: "--".
if (getenv("POSIX_ME_HARDER") && arg[0] =3D=3D '-' && arg[1] !=3D '-')=
errx(1, "Strict posix compliance says you lose.");
might be all that's needed.
Warner
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