replacement for shell mode comint-kill-output

replacement for shell mode comint-kill-output

[huey]

back in the version 19.30 days I could bring up a shell in emacs and
enter shell commands.  After executing a command, C-c C-o
(comint-kill-output) would remove the output from the shell buffer and
place it in the kill ring, where I could do a simple yank and place
that output in another  buffer.

Today, using version 27.1, the comint-kill-output command is no
longer, and C-c C-o provides the similar function
comint-delete-output.  However, said output is not placed in the kill
ring, and cannot be yanked back.

Is there a different/simple way to achieve the previous behavior?

Thanks!

Re: replacement for shell mode comint-kill-output

[tomas]

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On Tue, Sep 14, 2021 at 05:55:30PM -0700, huey wrote:
> back in the version 19.30 days I could bring up a shell in emacs and
> enter shell commands.  After executing a command, C-c C-o
> (comint-kill-output) would remove the output from the shell buffer and
> place it in the kill ring, where I could do a simple yank and place
> that output in another  buffer.
> 
> Today, using version 27.1, the comint-kill-output command is no
> longer, and C-c C-o provides the similar function
> comint-delete-output.  However, said output is not placed in the kill
> ring, and cannot be yanked back.
> 
> Is there a different/simple way to achieve the previous behavior?

The function documentation (i.e. C-h f comint-delete-output) says:

  comint-delete-output is an interactive compiled Lisp function in
  ‘comint.el’.
  
  (comint-delete-output &optional KILL)
  
  Delete all output from interpreter since last input.
  If KILL (interactively, the prefix), save the killed text in the
  kill ring.
  
  This command does not delete the prompt.
  
    Probably introduced at or before Emacs version 21.1.

So typing `C-u' before `C-c C-o' might do the trick. No idea why/when
`comint-kill-output' took the way out. In theory, of course, you could
make yourself one, along the lines

  (defun my-comint-kill-output ()
    (interactive)
    (comint-delete-output t))

and bind it so something.

Cheers
 - t

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Re: replacement for shell mode comint-kill-output

[Eli Zaretskii]

> Date: Wed, 15 Sep 2021 08:20:49 +0200
> From: <tomas@tuxteam.de>
> 
>   If KILL (interactively, the prefix), save the killed text in the
>   kill ring.

This part is Emacs 28 only, though.  The OP uses Emacs 27.

Re: replacement for shell mode comint-kill-output

[Eli Zaretskii]

> From: huey <hueypokerbrainz@gmail.com>
> Date: Tue, 14 Sep 2021 17:55:30 -0700
> 
> back in the version 19.30 days I could bring up a shell in emacs and
> enter shell commands.  After executing a command, C-c C-o
> (comint-kill-output) would remove the output from the shell buffer and
> place it in the kill ring, where I could do a simple yank and place
> that output in another  buffer.

According to the VC history, that command stopped putting text on the
kill-ring in Apr 1994, i.e. in Emacs 19.23.

> Today, using version 27.1, the comint-kill-output command is no
> longer, and C-c C-o provides the similar function
> comint-delete-output.  However, said output is not placed in the kill
> ring, and cannot be yanked back.
> 
> Is there a different/simple way to achieve the previous behavior?

In Emacs 28, "C-u C-c C-o" would kill the text instead of deleting it.