From: Marcin Borkowski <mbork@mbork.pl>
To: "help-gnu-emacs\@gnu.org" <help-gnu-emacs@gnu.org>
Subject: Re: One-off history for read-string
Date: Sat, 26 Sep 2015 09:46:28 +0200 [thread overview]
Message-ID: <87io6xbp2j.fsf@mbork.pl> (raw)
In-Reply-To: <CAOj2CQSm6OOxowx0BNC7pdezZYoK8LyfB7Obk+-dHxd9byXOwA@mail.gmail.com>
On 2015-09-26, at 04:33, John Mastro <john.b.mastro@gmail.com> wrote:
> Emanuel Berg <embe8573@student.uu.se> wrote:
>
>> > However, I don't care about /writing/ it to some
>> > variable in Emacs, since the new entry will be
>> > uploaded to the server anyway, and taken from there
>> > the next time, together with the rest of
>> > the history.
>>
>> So then, what does it matter?
>
> He wants history to be available to the user (e.g. `M-p'), but he wants
> that history to come from a server rather than be accumulated in the
> usual way. So the history on the server is likely changing over time,
> but from the Lisp code's perspective it's conceptually a new list each
> time.
Yes.
> Something like this, if I understand him correctly:
Yes, you do.
> (defvar readonly-history)
>
> (defun get-history-list-from-server ()
> ;; Imagine we fetch this list of HTTP
> (list "foo" "bar" "baz" "quux"))
>
> (defun my-read-string (prompt)
> (let ((readonly-history (get-history-list-from-server)))
> (read-string prompt nil 'readonly-history)))
And this is exactly what I'm doing now, modulo variable names (and
get-history-list-from-server, which is really
(mapcar #'get-piece-of-history a-big-datastructure-got-from-the-server)
or really
(mapcar #'get-piece-of-history
(cdr
(assoc 'datastructure-key
an-even-bigger-alist-of-similar-but-unrelated-datastructures-got-from-the-server)
Best,
--
Marcin Borkowski
http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski
Faculty of Mathematics and Computer Science
Adam Mickiewicz University
prev parent reply other threads:[~2015-09-26 7:46 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-24 12:10 One-off history for read-string Marcin Borkowski
2015-09-24 15:47 ` Stefan Monnier
2015-09-24 16:27 ` Marcin Borkowski
2015-09-24 17:04 ` Drew Adams
2015-09-25 0:34 ` Emanuel Berg
2015-09-25 7:16 ` Marcin Borkowski
2015-09-26 2:02 ` Emanuel Berg
2015-09-26 2:33 ` John Mastro
2015-09-26 2:47 ` Emanuel Berg
2015-09-26 7:46 ` Marcin Borkowski
2015-09-27 1:20 ` Emanuel Berg
2015-09-27 6:02 ` Marcin Borkowski
2015-09-27 23:14 ` Emanuel Berg
2015-09-28 0:50 ` Stefan Monnier
2015-09-26 7:46 ` Marcin Borkowski [this message]
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