From: Eli Zaretskii <eliz@gnu.org>
To: Paul Eggert <eggert@cs.ucla.edu>
Cc: emacs-devel@gnu.org, drew.adams@oracle.com,
npostavs@users.sourceforge.net
Subject: Re: Change of Lisp syntax for "fancy" quotes in Emacs 27?
Date: Tue, 09 Oct 2018 19:13:11 +0300 [thread overview]
Message-ID: <834ldvyu7c.fsf@gnu.org> (raw)
In-Reply-To: <c9e77583-0e31-aaf9-6d3b-ade78c021111@cs.ucla.edu> (message from Paul Eggert on Tue, 9 Oct 2018 08:30:22 -0700)
> Cc: Eli Zaretskii <eliz@gnu.org>, Emacs developers <emacs-devel@gnu.org>,
> Drew Adams <drew.adams@oracle.com>
> From: Paul Eggert <eggert@cs.ucla.edu>
> Date: Tue, 9 Oct 2018 08:30:22 -0700
>
> Noam Postavsky wrote:
> > deciding which characters are confusable and hence
> > require backslash escaping is based on a shifting mess of heuristics.
>
> No more than the "shifting mess of heuristics" inevitable in any choice of
> syntax. Quite possibly the confusables list from the Unicode consortium will do.
> The list won't shift much once it's established.
>
> We can start merely by warning about confusable characters and seeing how often
> those warnings are triggered in real (as opposed to malicious or
> purposely-tricky) code. If the warnings are quite rare, in a later Emacs version
> we can change the manual from "confusable characters should be escaped" to
> "confusable characters must be escaped".
Confusable characters are confusable only when they are surrounded by
ASCII characters or by characters that look like ASCII. By
themselves, at least many of them, are entirely legitimate. For
example, I see no reason to warn about a symbol named "сталин", even
though the characters с and а will be considered confusables if the
symbol would be named something like "саn".
So I think we cannot go by characters here, we need to examine the
context.
That is why I think we shouldn't link this particular issue, of quote
characters, with the more general problem: the latter is much more
complicated to solve correctly.
next prev parent reply other threads:[~2018-10-09 16:13 UTC|newest]
Thread overview: 98+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-02 22:24 Change of Lisp syntax for "fancy" quotes in Emacs 27? Noam Postavsky
2018-02-02 22:52 ` Paul Eggert
2018-02-03 0:00 ` Drew Adams
2018-02-03 0:09 ` Paul Eggert
2018-02-03 0:39 ` Drew Adams
2018-02-03 8:33 ` Eli Zaretskii
2018-02-03 16:16 ` Drew Adams
2018-02-03 17:05 ` Eli Zaretskii
2018-02-04 1:16 ` Michael Heerdegen
2018-02-04 1:25 ` Clément Pit-Claudel
2018-02-04 2:05 ` Drew Adams
2018-02-04 2:06 ` Michael Heerdegen
2018-02-04 10:34 ` Alan Third
2018-02-04 15:36 ` Clément Pit-Claudel
2018-02-04 17:37 ` Eli Zaretskii
2018-02-04 21:31 ` Noam Postavsky
2018-02-04 11:15 ` Alan Mackenzie
2018-02-04 15:54 ` Drew Adams
2018-02-04 14:47 ` Noam Postavsky
2018-02-04 1:55 ` Drew Adams
2018-02-04 2:10 ` Noam Postavsky
2018-02-05 1:06 ` Why "symbol's value" error about a list? Richard Stallman
2018-02-05 20:35 ` Alan Mackenzie
2018-02-05 21:46 ` Drew Adams
2018-02-06 4:13 ` Eli Zaretskii
2018-02-06 7:32 ` Tim Cross
2018-02-06 7:40 ` Eli Zaretskii
2018-02-06 15:45 ` Drew Adams
2018-02-06 15:45 ` Drew Adams
2018-02-06 19:17 ` Eli Zaretskii
2018-02-06 14:51 ` Richard Stallman
2018-02-06 11:27 ` Noam Postavsky
2018-02-06 14:53 ` Richard Stallman
2018-02-06 18:59 ` Eli Zaretskii
2018-02-07 2:40 ` Richard Stallman
2018-02-07 3:42 ` Eli Zaretskii
2018-02-06 18:52 ` Eli Zaretskii
2018-02-05 1:06 ` Change of Lisp syntax for "fancy" quotes in Emacs 27? Richard Stallman
2018-02-03 18:13 ` Aaron Ecay
2018-02-04 2:05 ` Drew Adams
2018-02-04 4:51 ` Paul Eggert
2018-02-04 9:47 ` Andreas Schwab
2018-02-04 15:04 ` Noam Postavsky
2018-02-04 17:33 ` Eli Zaretskii
2018-02-04 19:36 ` Paul Eggert
2018-02-04 19:55 ` Philipp Stephani
2018-02-04 20:10 ` Eli Zaretskii
2018-02-04 20:36 ` Eli Zaretskii
2018-02-04 20:48 ` Paul Eggert
2018-02-04 20:59 ` Clément Pit-Claudel
2018-10-05 0:03 ` Noam Postavsky
2018-10-05 1:01 ` Paul Eggert
2018-10-05 8:43 ` Eli Zaretskii
2018-10-05 23:02 ` Paul Eggert
2018-10-06 0:20 ` Drew Adams
2018-10-06 9:14 ` Alan Mackenzie
2018-10-06 14:34 ` Stefan Monnier
2018-10-06 14:57 ` Drew Adams
2018-10-06 15:42 ` Garreau, Alexandre
2018-10-06 16:10 ` Paul Eggert
2018-10-06 16:17 ` Paul Eggert
2018-10-07 1:13 ` Drew Adams
2018-10-08 3:51 ` Richard Stallman
2018-10-06 10:11 ` Eli Zaretskii
2018-10-06 15:51 ` Paul Eggert
2018-10-06 16:45 ` Eli Zaretskii
2018-10-06 18:03 ` Paul Eggert
2018-10-06 18:29 ` Eli Zaretskii
2018-10-06 19:18 ` Paul Eggert
2018-10-06 19:30 ` Paul Eggert
2018-10-06 19:32 ` Garreau, Alexandre
2018-10-06 11:22 ` Garreau, Alexandre
2018-10-06 11:50 ` Eli Zaretskii
2018-10-06 12:10 ` Garreau, Alexandre
2018-10-06 14:00 ` Eli Zaretskii
2018-10-24 22:25 ` Noam Postavsky
2018-10-06 13:15 ` Unicode security-issues workarounds elsewhere [Was: Re: Change of Lisp syntax for "fancy" quotes in Emacs 27?] Garreau, Alexandre
2018-10-06 14:01 ` Eli Zaretskii
2018-10-06 16:24 ` Change of Lisp syntax for "fancy" quotes in Emacs 27? Paul Eggert
2018-10-06 16:40 ` Stefan Monnier
2018-10-09 14:43 ` Noam Postavsky
2018-10-09 15:30 ` Paul Eggert
2018-10-09 16:13 ` Eli Zaretskii [this message]
2018-10-09 17:07 ` Paul Eggert
2018-10-09 19:18 ` Andreas Schwab
2018-10-10 9:39 ` Aaron Ecay
2018-10-10 11:18 ` Garreau, Alexandre
2018-10-10 14:31 ` Eli Zaretskii
2018-10-10 15:18 ` Eli Zaretskii
2018-10-10 15:43 ` Drew Adams
2018-10-10 16:08 ` Yuri Khan
2018-10-15 20:30 ` Juri Linkov
2018-10-10 3:58 ` Richard Stallman
2018-10-10 3:57 ` Richard Stallman
2018-10-10 14:41 ` Eli Zaretskii
2018-10-11 5:01 ` Richard Stallman
2018-10-06 15:40 ` eval-last-sexp / C-x C-e, and punctuation like `?’' [Was: Re: Change of Lisp syntax for "fancy" quotes in Emacs 27?)] Garreau, Alexandre
2018-10-16 12:48 ` Change of Lisp syntax for "fancy" quotes in Emacs 27? Garreau, Alexandre
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=834ldvyu7c.fsf@gnu.org \
--to=eliz@gnu.org \
--cc=drew.adams@oracle.com \
--cc=eggert@cs.ucla.edu \
--cc=emacs-devel@gnu.org \
--cc=npostavs@users.sourceforge.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).