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From: Hongyi Zhao <hongyi.zhao@gmail.com>
To: Tassilo Horn <tsdh@gnu.org>
Cc: help-gnu-emacs <help-gnu-emacs@gnu.org>
Subject: Re: Add/remove an element into/from a cons.
Date: Tue, 26 Oct 2021 14:30:47 +0800	[thread overview]
Message-ID: <CAGP6POJXcbZDEyORj6vPNkAuM-cynyStz9OSi4w2YXxts33DkQ@mail.gmail.com> (raw)
In-Reply-To: <87wnm0papx.fsf@gnu.org>

On Tue, Oct 26, 2021 at 2:21 PM Tassilo Horn <tsdh@gnu.org> wrote:
>
> Hongyi Zhao <hongyi.zhao@gmail.com> writes:
>
> > (defun my-scratch-init ()
> >   (with-current-buffer "*scratch*"
> >     (setq-local company-backends (let ((place (assoc 'company-tabnine
> > company-backends)))
> >                    (setf place (remove 'company-ispell place))))
> >     ))
>
> setf returns the new value, so here you are setting company-backends to
> the modified alist entry, not the alist itself.  This should work:
>
> --8<---------------cut here---------------start------------->8---
> (defun my-scratch-init ()
>   (with-current-buffer "*scratch*"
>     ;; Ensure it has a local variable.  Not sure if it has by default...
>     (make-local-variable 'company-backends)
>     (let ((place (assoc 'company-tabnine company-backends)))
>       (setf place (remove 'company-ispell place)))))
> --8<---------------cut here---------------end--------------->8---

It doesn't work. The variable hasn't been revised when I'm switch to
scratch buffer.



  reply	other threads:[~2021-10-26  6:30 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-26  2:05 Add/remove an element into/from a cons Hongyi Zhao
2021-10-26  4:57 ` Tassilo Horn
2021-10-26  5:40   ` Hongyi Zhao
2021-10-26  5:42     ` Hongyi Zhao
2021-10-26  6:07       ` Hongyi Zhao
2021-10-26  6:18         ` Tassilo Horn
2021-10-26  6:30           ` Hongyi Zhao [this message]
2021-10-26  6:39           ` Hongyi Zhao
2021-10-26  6:08       ` Tassilo Horn
2021-10-26  6:17         ` Hongyi Zhao
2021-10-26  6:22           ` Tassilo Horn
2021-10-26  8:12             ` Hongyi Zhao
2021-10-26  8:15               ` Tassilo Horn
2021-10-26  9:26                 ` Hongyi Zhao
2021-10-26  9:31                   ` Hongyi Zhao
2021-10-26 18:56                   ` Tassilo Horn
2021-10-27  1:39                     ` Hongyi Zhao
2021-10-27  4:54                       ` Hongyi Zhao
2021-10-27  5:13                         ` Hongyi Zhao
2021-10-27 18:43                         ` Tassilo Horn
2021-10-28  4:14                           ` Hongyi Zhao
2021-10-28  4:36                             ` Hongyi Zhao
2021-10-28  5:40                             ` Hongyi Zhao
2021-10-26 12:36                 ` Stefan Monnier
2021-10-26 13:41                   ` Hongyi Zhao
2021-10-26  6:22           ` Hongyi Zhao

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