From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Eli Zaretskii <eliz@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: [Emacs-diffs] master db828f6: Don't rely on defaults in decoding UTF-8 encoded Lisp files
Date: Fri, 25 Sep 2015 08:21:59 -0400 [thread overview]
Message-ID: <jwv37y2hf6x.fsf-monnier+emacsdiffs@gnu.org> (raw)
In-Reply-To: <83fv23hr0z.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 25 Sep 2015 10:55:24 +0300")
> E.g., try saving a foo.el with the following contents:
>
> (setq string "א“”")
>
> using cp1255, then kill the buffer and visit it again.
AFAIK saving in this way requires very explicit action on the part of
the user. She gets what she asked for. But yes, we should probably
make it even harder (i.e. disallow it altogether as long as there's no
"coding:cp1255" tag).
> So we now agree that at least non-*.el files should have the coding
> cookie, yes?
Yes, definitely.
> Bottom line: we use prefer-utf-8 for *.el files so that the
> probability of such catastrophic errors be minimized when the lazy
> maintainers couldn't be bothered to add a cookie.
No. I pushed for prefer-utf-8 because I want Elisp source code to be
declared to use utf-8 encoding. I can imagine a future where we don't
even support Elisp files using another coding system (i.e. throw away the
load-with-code-conversion machinery).
> More generally, I think we should require any text file in the Emacs
> repository that includes non-ASCII characters to have an explicit
> coding cookie, so that these subtle problems don't lie low because
> most Emacs contributors live in UTF-8 locales.
My view OTOH is that the future is utf-8 only, and in that future we
won't want to have redundant "coding:utf-8" tags everywhere, so we need
to find ways to go from here (i.e. "need a coding: tag for any non-ASCII
file") to there. I don't have an answer in general, but prefer-utf-8 is
a step in that direction, which can be used for some class of files
(e.g. Elisp).
Stefan
next prev parent reply other threads:[~2015-09-25 12:21 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20150921165211.20434.28114@vcs.savannah.gnu.org>
[not found] ` <E1Ze4K3-0005KC-5U@vcs.savannah.gnu.org>
2015-09-21 19:57 ` [Emacs-diffs] master db828f6: Don't rely on defaults in decoding UTF-8 encoded Lisp files Stefan Monnier
2015-09-21 20:07 ` Eli Zaretskii
2015-09-24 16:44 ` Eli Zaretskii
2015-09-24 21:29 ` Stefan Monnier
2015-09-25 7:55 ` Eli Zaretskii
2015-09-25 12:21 ` Stefan Monnier [this message]
2015-09-25 13:37 ` Eli Zaretskii
2015-09-25 22:32 ` Paul Eggert
2015-09-26 6:27 ` Eli Zaretskii
2015-09-26 6:32 ` Eli Zaretskii
2015-09-26 14:31 ` Paul Eggert
2015-09-26 15:15 ` Eli Zaretskii
2015-09-26 16:01 ` Paul Eggert
2015-09-26 16:09 ` David Kastrup
2015-09-26 17:26 ` Eli Zaretskii
2015-09-26 18:53 ` Paul Eggert
2015-09-26 19:35 ` Eli Zaretskii
2015-09-26 20:26 ` Chad Brown
2015-09-26 21:50 ` David Kastrup
2015-09-27 4:44 ` Paul Eggert
2015-09-27 5:29 ` David Kastrup
2015-09-27 7:38 ` Paul Eggert
2015-09-27 7:46 ` David Kastrup
2015-09-27 7:52 ` Paul Eggert
2015-09-27 9:47 ` Andreas Schwab
2015-09-27 9:54 ` David Kastrup
2015-09-27 10:03 ` Andreas Schwab
2015-09-27 10:12 ` David Kastrup
2015-09-27 11:10 ` Andreas Schwab
2015-09-27 22:48 ` Richard Stallman
2015-09-28 2:41 ` Paul Eggert
2015-09-28 6:53 ` Eli Zaretskii
2015-09-28 15:08 ` Paul Eggert
2015-09-28 15:58 ` Eli Zaretskii
2015-09-27 7:39 ` Eli Zaretskii
2015-09-27 7:52 ` Paul Eggert
2015-09-27 8:00 ` David Kastrup
2015-09-27 8:03 ` Eli Zaretskii
2015-09-27 8:29 ` Paul Eggert
2015-09-27 8:37 ` David Kastrup
2015-09-27 8:40 ` Paul Eggert
2015-09-27 8:50 ` David Kastrup
2015-09-27 10:14 ` Eli Zaretskii
2015-09-27 8:57 ` Eli Zaretskii
2015-09-27 7:34 ` Eli Zaretskii
2015-09-27 16:03 ` Chad Brown
2015-09-27 18:41 ` Eli Zaretskii
2015-09-27 19:52 ` Chad Brown
2015-09-27 20:52 ` Eli Zaretskii
2015-09-26 20:32 ` Paul Eggert
2015-09-27 7:27 ` Eli Zaretskii
2015-09-27 7:42 ` David Kastrup
2015-09-27 9:20 ` Rustom Mody
2015-09-27 10:13 ` Eli Zaretskii
2015-09-27 20:21 ` Paul Eggert
2015-09-27 21:04 ` Eli Zaretskii
2015-09-27 8:22 ` Paul Eggert
2015-09-27 8:55 ` Eli Zaretskii
2015-09-27 9:56 ` Andreas Schwab
2015-09-27 10:04 ` David Kastrup
2015-09-27 10:16 ` Eli Zaretskii
2015-09-27 10:36 ` Eli Zaretskii
2015-09-27 10:59 ` Eli Zaretskii
2015-09-27 20:05 ` Paul Eggert
2015-09-26 17:25 ` Eli Zaretskii
2015-09-26 18:51 ` Paul Eggert
2015-09-27 0:12 ` stephen
2015-09-27 4:44 ` Paul Eggert
2015-09-27 6:20 ` stephen
2015-09-27 8:34 ` Paul Eggert
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