Emacs: Spaces to New Lines 🚀

Here's a command to convert spaces to newline characters.

For example,

cat dog cow

becomes

cat
dog
cow

Here's the code.

(defun xah-space-to-newline ()
  "Replace space sequence to a newline char in current block or selection.

URL `http://xahlee.info/emacs/emacs/emacs_space_to_newline.html'
Created: 2017-08-19
Version: 2024-03-19"
  (interactive)
  (let (xp1 xp2)
    (seq-setq (xp1 xp2) (xah-get-pos-of-block-or))
    (save-restriction
      (narrow-to-region xp1 xp2)
      (goto-char (point-min))
      (while (re-search-forward " +" nil t)
        (replace-match "\n")))))

requires package Emacs: xah-get-thing.el