From: Drew Adams <drew.adams@oracle.com>
To: Michael Heerdegen <michael_heerdegen@web.de>
Cc: Xu Chunyang <mail@xuchunyang.me>, 34975@debbugs.gnu.org
Subject: bug#34975: 26.1.92; In backquote, the comma marker does not work with variable name started with dot
Date: Mon, 25 Mar 2019 07:21:11 -0700 (PDT) [thread overview]
Message-ID: <fe98d13b-1fbf-4f90-b262-98331db03d9b@default> (raw)
In-Reply-To: <877ecnybya.fsf@web.de>
> Yes, thanks. I also found that post:
>
> https://urldefense.proofpoint.com/v2/url?u=https-
> 3A__lists.gnu.org_archive_html_emacs-2Ddevel_2012-
> 2D02_msg00330.html&d=DwIFAg&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=k
> I3P6ljGv6CTHIKju0jqInF6AOwMCYRDQUmqX22rJ98&m=CxM0DPMvIA0IaOjx7pLPUAWhhKla65XR
> UOtlWoUp1pM&s=3ooHHbORUe59GfFU53KZE6gD6KNQLvxSeAKZuHs8TT8&e=
>
> The state is the same as back then: ,. is a reader macro in Emacs Lisp,
> but the head of the expansion (the symbol named ",.") doesn't have any
> semantics, even not in backquote.
You're right; I was wrong. I thought it did what
,@ does (which it should, whether or not it has the
extra difference of behavior specified for CL).
What it does in Emacs Lisp is _completely_ wrong, IMO.
(setq c 42) ; c = 42
(setq a `(b ,. c)) ; a = (b (\,\. c))
next prev parent reply other threads:[~2019-03-25 14:21 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-24 14:19 bug#34975: 26.1.92; In backquote, the comma marker does not work with variable name started with dot Xu Chunyang
2019-03-24 15:16 ` Michael Heerdegen
2019-03-25 0:06 ` Drew Adams
2019-03-25 1:33 ` Michael Heerdegen
2019-03-25 14:21 ` Drew Adams [this message]
2019-03-26 0:03 ` Michael Heerdegen
2019-03-26 9:49 ` Andreas Schwab
2019-03-27 1:50 ` Michael Heerdegen
2019-04-04 3:31 ` Noam Postavsky
2019-04-04 13:10 ` Eli Zaretskii
2019-04-04 13:25 ` Noam Postavsky
2019-04-04 22:28 ` Basil L. Contovounesios
2019-04-04 23:37 ` Noam Postavsky
2019-04-05 1:15 ` Basil L. Contovounesios
2019-04-05 6:21 ` Eli Zaretskii
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