From: Eli Zaretskii <eliz@gnu.org>
To: Al Haji-Ali <abdo.haji.ali@gmail.com>
Cc: 73446@debbugs.gnu.org
Subject: bug#73446: 29.1; Curious behaviour with with-current-buffer and read-string
Date: Tue, 24 Sep 2024 15:12:40 +0300 [thread overview]
Message-ID: <86msjxdzd3.fsf@gnu.org> (raw)
In-Reply-To: <m04j65wjir.fsf@gmail.com> (message from Al Haji-Ali on Tue, 24 Sep 2024 09:19:56 +0100)
> From: Al Haji-Ali <abdo.haji.ali@gmail.com>
> Date: Tue, 24 Sep 2024 09:19:56 +0100
>
>
> Consider this code snippet:
>
> ,----
> | (with-current-buffer (get-buffer "*scratch*")
> | (message "START point %S %S" (current-buffer) (point))
> | (goto-char 10)
> | (message "BEFORE point %S %S" (current-buffer) (point))
> | (with-current-buffer (get-buffer "*Messages*") ;; some random buffer
> | (read-string "Test: "))
> | (message "AFTER point %S %S" (current-buffer) (point)))
> `----
>
> Assuming that *scratch* has a point at something other than 10 and *is visible in a window*, I get this output in Messages
>
> ,----
> | START point #<buffer *scratch*> 2952
> | BEFORE point #<buffer *scratch*> 10
> | AFTER point #<buffer *scratch*> 2952
> `----
>
> I was expecting (point) AFTER to be 100, as it was BEFORE.
>
> This only happens when `read-string` is called and when `with-current-buffer` is nested, and only when *scratch* is visible in a window.
I can't reproduce this, but see switch-to-buffer-preserve-window-point.
next prev parent reply other threads:[~2024-09-24 12:12 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-24 8:19 bug#73446: 29.1; Curious behaviour with with-current-buffer and read-string Al Haji-Ali
2024-09-24 12:12 ` Eli Zaretskii [this message]
2024-09-24 13:12 ` Al Haji-Ali
2024-09-24 13:43 ` Eli Zaretskii
2024-09-24 15:07 ` Al Haji-Ali
2024-09-24 15:50 ` Eli Zaretskii
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