switch-to-buffer in minibuffer

switch-to-buffer in minibuffer

[Chong Yidong]

Regarding this item in etc/NEWS:

  *** Operations like C-x b and C-x C-f, which use switch-to-buffer, do
  not fail any more when used in a minibuffer or a dedicated window.
  Instead, they fallback on using pop-to-buffer, which will use some
  other window.

What does this mean?  Naively, it seems to be saying that
C-x C-f C-x C-f will do something new, but it instead gives the same
error as previous versions of Emacs ("attempted to use minibuffer while
minibuffer is active").  So what's this about?

Re: switch-to-buffer in minibuffer

[Thien-Thi Nguyen]

() Chong Yidong <cyd@stupidchicken.com>
() Tue, 05 Aug 2008 22:38:15 -0400

   Regarding this item in etc/NEWS:

     *** Operations like C-x b and C-x C-f, which use switch-to-buffer, do
     not fail any more when used in a minibuffer or a dedicated window.
     Instead, they fallback on using pop-to-buffer, which will use some
     other window.

   What does this mean?  Naively, it seems to be saying that
   C-x C-f C-x C-f will do something new, but it instead gives the same
   error as previous versions of Emacs ("attempted to use minibuffer while
   minibuffer is active").  So what's this about?

The blurb should probably read:

     *** (Given enable-recursive-minibuffers non-nil) Operations like
     C-x b and C-x C-f, which use switch-to-buffer, do not fail any more
     when used in a minibuffer or a dedicated window.  Instead, they
     fallback on using pop-to-buffer, which will use some other window.

or similar.

thi

Re: switch-to-buffer in minibuffer

[Lawrence Mitchell]

Chong Yidong wrote:
> Regarding this item in etc/NEWS:

>   *** Operations like C-x b and C-x C-f, which use switch-to-buffer, do
>   not fail any more when used in a minibuffer or a dedicated window.
>   Instead, they fallback on using pop-to-buffer, which will use some
>   other window.

> What does this mean?  Naively, it seems to be saying that
> C-x C-f C-x C-f will do something new, but it instead gives the same
> error as previous versions of Emacs ("attempted to use minibuffer while
> minibuffer is active").  So what's this about?

If enable-recursive-minibuffers is t, then the following sequence
of commands works in 23:

emacs -Q --eval '(setq enable-recursive-minibuffers t)'

C-x b *foo*
C-x b *bar* RET

*bar* is displayed as a new buffer in a vertically split window
 with *scratch* and the minibuffer continues to prompt to switch
 to a buffer *foo*.

Previously, the sequence would result in "Cannot switch buffers
in minibuffer window"

Lawrence
-- 
Lawrence Mitchell <wence@gmx.li>

Re: switch-to-buffer in minibuffer

[Chong Yidong]

Thien-Thi Nguyen <ttn@gnuvola.org> writes:

> The blurb should probably read:
>
>      *** (Given enable-recursive-minibuffers non-nil) Operations like
>      C-x b and C-x C-f, which use switch-to-buffer, do not fail any more
>      when used in a minibuffer or a dedicated window.  Instead, they
>      fallback on using pop-to-buffer, which will use some other window.
>
> or similar.

Thanks.  I've updated NEWS accordingly.