Re: delete all whitespace (space) in a region

[tpeplt]

Uwe Brauer <oub@mat.ucm.es> writes:

>
>> Emacs 28 added the function ‘replace-string-in-region’.
>
>> (defun my-delete-all-whitespace-region (beg end)
>>   (interactive "r")
>>   (save-excursion
>>     (replace-string-in-region " " "" beg end)))
>
> Ah, thanks, I did not know that

If you want to see more of what has been added, see the NEWS file by
typing C-h n.  Unfortunately, this file (for Emacs 28) is large (4000
lines) and the new function above is not mentioned until line 3540.

A new feature that was added Emacs 28 is the ‘shortdoc-display-group’.
Type:
   M-x shortdoc-display-group <TAB>
to see a list of the groups for which shortdoc help is available.  These
are only a subset of the functions that are available in Emacs.

Type:
   M-x shortdoc-display-group <RET>

and then type "buffer" (no quotes) in response to the prompt:

   Show summary for functions in: buffer

This will then list brief help/descriptions for many buffer-related
functions in a ‘shortdoc’ buffer, including ‘replace-string-in-region’.

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