From: Michael Heerdegen <michael_heerdegen@web.de>
To: Stefan Monnier <monnier@IRO.UMontreal.CA>
Cc: Mark Oteiza <mvoteiza@udel.edu>,
emacs-devel@gnu.org, npostavs@users.sourceforge.net
Subject: Re: if-let/if-let*/and-let/..
Date: Thu, 22 Feb 2018 08:55:30 +0100 [thread overview]
Message-ID: <877er5e9vx.fsf@web.de> (raw)
In-Reply-To: <jwv371ty5vg.fsf-monnier+emacs@gnu.org> (Stefan Monnier's message of "Thu, 22 Feb 2018 00:10:22 -0500")
Stefan Monnier <monnier@IRO.UMontreal.CA> writes:
> > (pcase spec
> > (`(,(pred symbolp) . ,rest)
> > (pcase rest
> > (`(,_) (cl-callf list spec)) ;the single binding syntax
> > (_ (signal 'error (list "if-let: Bad binding spec" spec))))))
>
> So you'd then support the SYMBOL syntax as a shorthand for (_ SYMBOL)
> *except* as the first element of the spec?
Hmm - maybe it would be even better to make `foo-let*' just do what
`foo-let' does currently - only handle a SPEC (SYMBOL EXPR) specially,
and don't signal any errors.
I also had the idea of moving `foo-let' back and limit it to the single
binding case, which would IMHO be more consistent - but that would break
stuff in Gnu Elpa, so I guess it's not an option.
Michael.
next prev parent reply other threads:[~2018-02-22 7:55 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-11 23:51 if-let/if-let*/and-let/ Stefan Monnier
[not found] ` <87wozijhpk.fsf@web.de>
[not found] ` <jwv8tbyyx4x.fsf-monnier+emacs@gnu.org>
2018-02-12 17:32 ` if-let/if-let*/and-let/ Stefan Monnier
2018-02-13 18:23 ` if-let/if-let*/and-let/ Michael Heerdegen
2018-02-13 19:24 ` if-let/if-let*/and-let/ Stefan Monnier
2018-02-13 20:52 ` if-let/if-let*/and-let/ John Wiegley
2018-02-13 19:31 ` if-let/if-let*/and-let/ Mark Oteiza
2018-02-13 20:49 ` if-let/if-let*/and-let/ Stefan Monnier
2018-02-14 0:07 ` if-let/if-let*/and-let/ Mark Oteiza
2018-02-14 23:07 ` if-let/if-let*/and-let/ Michael Heerdegen
2018-02-15 3:37 ` if-let/if-let*/and-let/ Stefan Monnier
2018-02-21 4:26 ` if-let/if-let*/and-let/ Michael Heerdegen
2018-02-22 1:08 ` if-let/if-let*/and-let/ Michael Heerdegen
2018-02-22 5:10 ` if-let/if-let*/and-let/ Stefan Monnier
2018-02-22 7:55 ` Michael Heerdegen [this message]
2018-03-03 14:12 ` if-let/if-let*/and-let/ Michael Heerdegen
2018-03-06 15:03 ` if-let/if-let*/and-let/ Michael Heerdegen
2018-03-06 15:31 ` if-let/if-let*/and-let/ Michael Heerdegen
2018-03-06 15:34 ` if-let/if-let*/and-let/ John Wiegley
2018-03-06 16:03 ` if-let/if-let*/and-let/ Stefan Monnier
2018-03-06 17:40 ` if-let/if-let*/and-let/ Michael Heerdegen
2018-03-06 19:12 ` if-let/if-let*/and-let/ Radon Rosborough
2018-03-07 2:13 ` if-let/if-let*/and-let/ James Nguyen
2018-03-07 3:42 ` if-let/if-let*/and-let/ Kaushal Modi
2018-03-06 17:40 ` if-let/if-let*/and-let/ Eli Zaretskii
2018-03-07 14:15 ` if-let/if-let*/and-let/ Michael Heerdegen
2018-03-07 15:13 ` if-let/if-let*/and-let/ Nicolas Petton
2018-03-07 20:43 ` if-let/if-let*/and-let/ John Wiegley
2018-03-08 13:53 ` if-let/if-let*/and-let/ Eli Zaretskii
2018-03-09 15:16 ` if-let/if-let*/and-let/ Michael Heerdegen
2018-03-09 15:32 ` if-let/if-let*/and-let/ Eli Zaretskii
2018-03-09 16:07 ` if-let/if-let*/and-let/ Michael Heerdegen
2018-03-09 16:24 ` if-let/if-let*/and-let/ Eli Zaretskii
2018-03-09 16:33 ` if-let/if-let*/and-let/ Michael Heerdegen
2018-03-09 18:22 ` if-let/if-let*/and-let/ Eli Zaretskii
2018-03-09 22:24 ` if-let/if-let*/and-let/ Michael Heerdegen
2018-03-10 8:02 ` if-let/if-let*/and-let/ Eli Zaretskii
2018-03-10 15:54 ` if-let/if-let*/and-let/ Stefan Monnier
2018-03-10 16:07 ` if-let/if-let*/and-let/ Michael Heerdegen
2018-03-10 16:29 ` if-let/if-let*/and-let/ Eli Zaretskii
2018-03-10 17:16 ` if-let/if-let*/and-let/ Michael Heerdegen
2018-03-10 17:29 ` if-let/if-let*/and-let/ Eli Zaretskii
2018-03-06 16:04 ` if-let/if-let*/and-let/ Eli Zaretskii
2018-03-06 17:35 ` if-let/if-let*/and-let/ Michael Heerdegen
2018-02-13 20:54 ` if-let/if-let*/and-let/ Michael Heerdegen
2018-02-13 21:57 ` if-let/if-let*/and-let/ Eric Abrahamsen
2018-02-13 22:39 ` if-let/if-let*/and-let/ Michael Heerdegen
2018-02-13 22:51 ` if-let/if-let*/and-let/ Eric Abrahamsen
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