How to open two or more scratch buffers ?

How to open two or more scratch buffers ?

[bolega]

(1) I want to compare two or three files (compare-windows) but I dont
want to save them in files, only as scratch buffers. C-x 2 replicates
the same buffer in two different windows.

Suppose the above is solved, then how to have a nice key binding if
there is no pre-existing one as I dont want to deviate from the normal
defaults, but only on these few occasions.

(2) In a newer emacs version, when I start emacs, it opens

*GNU Emacs*

as normal but on hitting return, does not clear the buffer and tells
me its readonly. which is really automatically switching to the
scratch buffer on hitting any key or hitting return.

How to do solve tthe two ?

Thanks

Re: How to open two or more scratch buffers ?

[Pascal J. Bourguignon]

bolega <gnuist006@gmail.com> writes:

> (1) I want to compare two or three files (compare-windows) but I dont
> want to save them in files, only as scratch buffers. C-x 2 replicates
> the same buffer in two different windows.

M-x ediff RET file1 RET file2 RET
M-x ediff3 for three files of course. 


> Suppose the above is solved, then how to have a nice key binding if
> there is no pre-existing one as I dont want to deviate from the normal
> defaults, but only on these few occasions.
>
> (2) In a newer emacs version, when I start emacs, it opens
>
> *GNU Emacs*

C-x k RET


> as normal but on hitting return, does not clear the buffer and tells
> me its readonly. which is really automatically switching to the
> scratch buffer on hitting any key or hitting return.
>
> How to do solve tthe two ?
>
> Thanks

-- 
__Pascal Bourguignon__                     http://www.informatimago.com/
A bad day in () is better than a good day in {}.

RE: How to open two or more scratch buffers ?

[Drew Adams]

> (1) I want to compare two or three files (compare-windows) but I dont
> want to save them in files,

Then you want to compare not files but buffers, no?

> only as scratch buffers.

Do you mean buffer `*scratch*' or just throw-away buffers?

You can open any buffers you want, using `C-x b'.  The buffer need not exist
first.

> C-x 2 replicates the same buffer in two different windows.

Then you are not comparing buffers or files, but the contents of windows
(`compare-windows', as you mentioned).

Consider using different, throw-away buffers, and using `ediff-compare-buffers'.

> Suppose the above is solved, then how to have a nice key binding if
> there is no pre-existing one as I dont want to deviate from the normal
> defaults, but only on these few occasions.

Personally, I use these bindings:

C-= b  ediff-buffers
C-= d  diff
C-= e  ediff-files
C-= f  ediff-files
C-= w  compare-windows

http://www.emacswiki.org/emacs/setup-keys.el

Re: How to open two or more scratch buffers ?

[Mario Lassnig]

On 1/14/11 11:18 PM, Drew Adams wrote:
>> (1) I want to compare two or three files (compare-windows) but I dont
>> want to save them in files,
>
> Then you want to compare not files but buffers, no?
>
>> only as scratch buffers.
>
> Do you mean buffer `*scratch*' or just throw-away buffers?
>
> You can open any buffers you want, using `C-x b'.  The buffer need not exist
> first.


I use this simple shortcut about a hundred times a day:


(defun new-scratchpad ()
   (interactive)
   (switch-to-buffer (concat "scratch-" (number-to-string (abs (random))))))

(global-set-key (kbd "C-n") 'new-scratchpad)





>
>> C-x 2 replicates the same buffer in two different windows.
>
> Then you are not comparing buffers or files, but the contents of windows
> (`compare-windows', as you mentioned).
>
> Consider using different, throw-away buffers, and using `ediff-compare-buffers'.
>
>> Suppose the above is solved, then how to have a nice key binding if
>> there is no pre-existing one as I dont want to deviate from the normal
>> defaults, but only on these few occasions.
>
> Personally, I use these bindings:
>
> C-= b  ediff-buffers
> C-= d  diff
> C-= e  ediff-files
> C-= f  ediff-files
> C-= w  compare-windows
>
> http://www.emacswiki.org/emacs/setup-keys.el
>
>