From: Aaron Ecay <aaronecay@gmail.com>
To: Noam Postavsky <npostavs@users.sourceforge.net>,
Emacs developers <emacs-devel@gnu.org>
Cc: Drew Adams <drew.adams@oracle.com>
Subject: Re: Change of Lisp syntax for "fancy" quotes in Emacs 27?
Date: Sat, 03 Feb 2018 18:13:27 +0000 [thread overview]
Message-ID: <87shaigcvs.fsf@gmail.com> (raw)
In-Reply-To: <CAM-tV-_X7d2zBn_u6pa_Tw-wYiPMuTjdqbsRqK90LdffTZ2NJw@mail.gmail.com>
Hi Noam,
2018ko otsailak 2an, Noam Postavsky-ek idatzi zuen:
>
> In Emacs 26 and earlier the following is valid lisp code:
>
> (setq ’bar 42)
> (setq foo ’bar)
I was surprised to learn that this is the case, in light of what is
said in the Elisp reference about symbol names: “A symbol name can
contain any characters whatever. Most symbol names are written with
letters, digits, and the punctuation characters ‘-+=*/’. Such names
require no special punctuation; the characters of the name suffice as
long as the name does not look like a number. (If it does, write a ‘\’
at the beginning of the name to force interpretation as a symbol.) The
characters ‘_~!@$%^&:<>{}?’ are less often used but also require no
special punctuation. Any other characters may be included in a symbol's
name by escaping them with a backslash.” (info "(elisp) Symbol Type")
Would it be worth considering making the reader enforce this fully
specification, as an alternative to your patch? That would solve
this problem with curly quotes in symbol names (which also bit me at
one point), as well as the potential problems with other confusable
characters raised by Paul.
(It might still be desirable to add a special user-friendly error message
when the illegal characters are confusable with an ASCII single quote, as
an additional user-friendliness measure.)
Aaron
PS if this approach is not taken, the manual should at least be changed
to match the actual behavior of the reader.
next prev parent reply other threads:[~2018-02-03 18:13 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 [this message]
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
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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