From: Noam Postavsky <npostavs@users.sourceforge.net>
To: Drew Adams <drew.adams@oracle.com>
Cc: Alan Mackenzie <acm@muc.de>, 30217@debbugs.gnu.org
Subject: bug#30217: Ambiguity in NEWS in emacs-26.0.91
Date: Mon, 22 Jan 2018 19:42:11 -0500 [thread overview]
Message-ID: <87efmho17g.fsf@users.sourceforge.net> (raw)
In-Reply-To: <5074511f-b3b3-45aa-80b4-130be08f30ec@default> (Drew Adams's message of "Mon, 22 Jan 2018 14:42:34 -0800 (PST)")
Drew Adams <drew.adams@oracle.com> writes:
>> In the new NEWS in the recent pretest, at L1381 we have:
>>
>> ** To avoid confusion caused by "smart quotes", the reader no longer
>> accepts Lisp symbols which begin with the following quotation
>> characters: `'"" , unless they are escaped with backslash.
>> ^^^^
>>
>> , which leaves it unclear whether it's the "smart quotes" or the Lisp
>> symbols which need escaping.
> Even if that ambiguity gets resolved, I have no idea what
> the text means. What does it mean for the Lisp reader to
> "accept a Lisp symbol"?
>
> Please describe exactly what the reader does when it reads
> one of those characters followed by Lisp-symbol syntax, in
> both cases: char escaped and char not escaped.
How about this:
** To avoid confusion caused by "smart quotes", the reader signals an
error when reading Lisp symbols which begin with one of the following
quotation characters: ‘’‛“”‟〞"'. A symbol beginning with such a
character can be written by escaping the quotation character with a
backslash. For example:
(read "‘smart") => Lisp error: (invalid-read-syntax "strange quote" "‘")
(read "\\‘smart") == (intern "‘smart")
next prev parent reply other threads:[~2018-01-23 0:42 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-22 22:17 bug#30217: Ambiguity in NEWS in emacs-26.0.91 Alan Mackenzie
2018-01-22 22:42 ` Drew Adams
2018-01-23 0:42 ` Noam Postavsky [this message]
2018-01-23 0:56 ` Drew Adams
2018-01-23 1:40 ` Noam Postavsky
2018-01-23 6:07 ` Drew Adams
2018-01-23 6:21 ` Drew Adams
2018-01-23 12:54 ` Noam Postavsky
2018-01-23 15:53 ` Drew Adams
2018-01-23 23:00 ` Noam Postavsky
2018-01-23 23:19 ` Drew Adams
2018-01-24 0:02 ` Noam Postavsky
2018-01-28 15:52 ` Noam Postavsky
2018-02-02 18:52 ` Drew Adams
2018-02-02 19:08 ` Noam Postavsky
2018-02-02 21:37 ` Drew Adams
2018-02-02 22:14 ` Ista Zahn
2018-02-02 22:35 ` Noam Postavsky
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