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From: tomas@tuxteam.de
To: Heime <heimeborgia@protonmail.com>
Cc: help-gnu-emacs@gnu.org
Subject: Re: Check whether an object is an alist
Date: Wed, 18 Sep 2024 06:21:47 +0200	[thread overview]
Message-ID: <ZupVW9wEJHb/9Cdz@tuxteam.de> (raw)
In-Reply-To: <s-ffIx6WzNtUsHWBmcnIqFpz5K2kSCiT1c8XZ469Q4PkdoJGnXPaNIhGjJPrHqcXrKsPcljBN6LOmG2Uxsp2QUvDxvIFPnZigOUbp87zMQE=@protonmail.com>

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On Tue, Sep 17, 2024 at 09:25:44PM +0000, Heime wrote:

[...]

> > After changing to the following, I am getting validation for list
> > element (1 2 3), even though it is not an association.
> > 
> > (defun torium-alist-p (obj)
> > "Return t if object OBJ is an association list (alist)."
> > (and (listp obj)
> > (cl-every (lambda (x) #'consp) obj)))
> 
> I remember.  No requirements of lambda to run #'consp on obj

Much more important: /why/ are you "getting a validation" for list '(1 2 3)
with the above form and...

> (defun torium-alist-p (obj)
>   "Return t if object OBJ is an association list (alist)."
>   (and (listp obj)
>        (cl-every #'consp obj)))

...(probably, you didn't tell us) not with this one?

Why are they different?

Cheers
-- 
t

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  reply	other threads:[~2024-09-18  4:21 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-16 10:29 Check whether an object is an alist Heime
2024-09-17  8:45 ` Heime
2024-09-17  9:38   ` Manuel Giraud via Users list for the GNU Emacs text editor
2024-09-17  9:46     ` tomas
2024-09-17 11:16       ` Heime
2024-09-17 11:23         ` tomas
2024-09-17 13:51           ` Heime
2024-09-17 13:58             ` tomas
2024-09-17 14:32               ` Heime
2024-09-17 15:20                 ` tomas
2024-09-17 16:26                   ` Heime
2024-09-17 17:57                     ` tomas
2024-09-17 18:04                       ` Heime
2024-09-17 18:28                         ` tomas
2024-09-17 19:20                           ` Heime
2024-09-17 19:35                             ` tomas
2024-09-17 21:02                               ` Heime
2024-09-17 21:25                                 ` Heime
2024-09-18  4:21                                   ` tomas [this message]
2024-09-18  4:52                                     ` Heime
2024-09-17 22:01                                 ` Stephen Berman
2024-09-17 19:22                 ` [External] : " Drew Adams

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