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From: Paul Eggert <eggert@cs.ucla.edu>
To: Noam Postavsky <npostavs@users.sourceforge.net>
Cc: Eli Zaretskii <eliz@gnu.org>, Drew Adams <drew.adams@oracle.com>,
	Emacs developers <emacs-devel@gnu.org>
Subject: Re: Change of Lisp syntax for "fancy" quotes in Emacs 27?
Date: Tue, 9 Oct 2018 08:30:22 -0700	[thread overview]
Message-ID: <c9e77583-0e31-aaf9-6d3b-ade78c021111@cs.ucla.edu> (raw)
In-Reply-To: <CAM-tV--J9fpmDs2gttUw9gs_R2y7-UhHg559tJUcj_8vBpxqEA@mail.gmail.com>

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".



  reply	other threads:[~2018-10-09 15:30 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 [this message]
2018-10-09 16:13             ` Eli Zaretskii
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

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