If exists, Kill buffer

If exists, Kill buffer

[Tim Johnson]

I need a function that will kill a (named) buffer if it exists.
1)Is there one?
  a)If not, I will need a function that checks for the existance
    of a buffer by name.
  b)Is there one?
Pointers to docs, resources welcomed.
tim

-- 
Tim Johnson <tim@johnsons-web.com>
      http://www.alaska-internet-solutions.com

Re: If exists, Kill buffer

[J. David Boyd]

Tim Johnson <tim@johnsons-web.com> writes:

> I need a function that will kill a (named) buffer if it exists.
> 1)Is there one?
>   a)If not, I will need a function that checks for the existance
>     of a buffer by name.
>   b)Is there one?
> Pointers to docs, resources welcomed.
> tim
>
> --
> Tim Johnson <tim@johnsons-web.com>
>       http://www.alaska-internet-solutions.com



I don't recall where I came by this, on this group probably...


(defun kill-buffers-matching (regexp)
  (interactive "sKill buffers matching: ")
  (dolist (i
	   (buffer-list))
    (when (string-match regexp (buffer-name i))
      (kill-buffer i))))



Dave in Largo, FL

Re: If exists, Kill buffer

[Lennart Borgman]

Tim Johnson wrote:

>I need a function that will kill a (named) buffer if it exists.
>1)Is there one?
>  a)If not, I will need a function that checks for the existance
>    of a buffer by name.
>  b)Is there one?
>Pointers to docs, resources welcomed.
>tim
>
>  
>
(get-buffer NAME)

Use C-h get-buffer RET to get basic documentation.

In the Elisp manual you can look under "Buffers" - "Buffer Names". 

If you are using CVS Emacs (next generation of Emacs, not yet released) 
you can find this manual by first selecting from the menus "Help - Read 
Emacs Manual" and then then choose Emacs Lisp. If you are using current 
Emacs (version 21.3) it can happen that it is not installed by default.

Re: If exists, Kill buffer

[Slawomir Nowaczyk]

On Fri, 07 Oct 2005 08:25:52 -0800
Tim Johnson <tim@johnsons-web.com> wrote:

#> I need a function that will kill a (named) buffer if it exists.
#> 1)Is there one?

How about (kill-buffer (get-buffer "blabla")) ?

#>   a)If not, I will need a function that checks for the existance
#>     of a buffer by name.

C-h f get-buffer

#>   b)Is there one?

Yes

-- 
 Best wishes,
   Slawomir Nowaczyk
     ( slawomir.nowaczyk.847@student.lu.se )

When the GM grins, it is too late to run.

Re: If exists, Kill buffer

[Tim Johnson]

Thank you folks!

You have me on the right track (I think).

I believe something like:
(if (get-buffer "*Help*")(kill-buffer "*Help*"))
will do the trick.

Cheers
tim

* Slawomir Nowaczyk <slawomir.nowaczyk.847@student.lu.se> [051007 08:43]:
> On Fri, 07 Oct 2005 08:25:52 -0800
> Tim Johnson <tim@johnsons-web.com> wrote:
> 
> #> I need a function that will kill a (named) buffer if it exists.
> #> 1)Is there one?
> 
> How about (kill-buffer (get-buffer "blabla")) ?
> 
> #>   a)If not, I will need a function that checks for the existance
> #>     of a buffer by name.
> 
> C-h f get-buffer
> 
> #>   b)Is there one?
> 
> Yes
> 
> -- 
>  Best wishes,
>    Slawomir Nowaczyk
>      ( slawomir.nowaczyk.847@student.lu.se )
> 
> When the GM grins, it is too late to run.
> 
> 
> 
> _______________________________________________
> Help-gnu-emacs mailing list
> Help-gnu-emacs@gnu.org
> http://lists.gnu.org/mailman/listinfo/help-gnu-emacs

-- 
Tim Johnson <tim@johnsons-web.com>
      http://www.alaska-internet-solutions.com

Re: If exists, Kill buffer

[Slawomir Nowaczyk]

On Fri, 07 Oct 2005 08:53:19 -0800
Tim Johnson <tim@johnsons-web.com> wrote:

#> Thank you folks!
#> 
#> You have me on the right track (I think).
#> 
#> I believe something like:
#> (if (get-buffer "*Help*")(kill-buffer "*Help*"))
#> will do the trick.

Well, actually just:
  (kill-buffer (get-buffer "blabla"))
works for me (but I use EmacsCVS, it may behave differently in 21.4 or
whatever you are using).

Anyway, for me get-buffer returns nil if no matching buffer is found,
and (kill-buffer nil) seems to be a no-op.

-- 
 Best wishes,
   Slawomir Nowaczyk
     ( slawomir.nowaczyk.847@student.lu.se )

Living your life is a task so difficult, it has never
been attempted before.

Re: If exists, Kill buffer

[Edward O'Connor]

Slawomir Nowaczyk wrote:

> and (kill-buffer nil) seems to be a no-op.

Err.

(kill-buffer nil) kills the current buffer, which is no no-op.


Ted

-- 
Edward O'Connor
hober0@gmail.com

Ense petit placidam sub libertate quietem.

Re: If exists, Kill buffer

[Slawomir Nowaczyk]

On Fri, 07 Oct 2005 13:23:55 -0700
Edward O'Connor <hober0@gmail.com> wrote:

#> Slawomir Nowaczyk wrote:
#> 
#> > and (kill-buffer nil) seems to be a no-op.
#> 
#> Err.
#> 
#> (kill-buffer nil) kills the current buffer, which is no no-op.

Hmm... funny... 

<goes back to his test case> ... <comes back with a brown paper bag
over his head> Yes, you are right... my testing was flawed: I have
forgotten my *scratch* buffer is protected against killing.

Sorry about that.

-- 
 Best wishes,
   Slawomir Nowaczyk
     ( slawomir.nowaczyk.847@student.lu.se )

You can't wake a person who is pretending to be asleep.