Emacs: Spaces to New Lines

By Xah Lee. Date: . Last updated: .

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.
Works on current block or selection.

URL `http://ergoemacs.org/emacs/emacs_space_to_newline.html'
Version 2017-08-19"
  (interactive)
  (let* ( $p1 $p2 )
    (if (use-region-p)
        (progn
          (setq $p1 (region-beginning))
          (setq $p2 (region-end)))
      (save-excursion
        (if (re-search-backward "\n[ \t]*\n" nil "move")
            (progn (re-search-forward "\n[ \t]*\n")
                   (setq $p1 (point)))
          (setq $p1 (point)))
        (re-search-forward "\n[ \t]*\n" nil "move")
        (skip-chars-backward " \t\n" )
        (setq $p2 (point))))
    (save-excursion
      (save-restriction
        (narrow-to-region $p1 $p2)
        (goto-char (point-min))
        (while (re-search-forward " +" nil t)
          (replace-match "\n" ))))))

Emacs Text Transform Under Cursor

  1. elisp wrapper + Python Ruby …
  2. Toggle Letter Case
  3. Title Case
  4. Upcase Sentences
  5. Cycle Space Hyphen Underscore
  6. Escape Quotes
  7. Quote Lines
  8. Spaces to New Lines
  9. Change Brackets/Quotes
  10. Remove Accent Marks
  11. Convert Straight/Curly Quotes
  12. Convert English/Chinese Punctuations
  13. Color Conversion (RGB, HSL, HSV)
  14. Decimal to Hexadecimal
  15. Replace Greek Letter Names to Unicode
  16. Twitterfy Text
  17. Toggle line wrap
  18. Clean White Space

Enhanced Editing Commands Topic

  1. Select Line, between Quotes, Extend Selection
  2. Copy/Cut Current Line If No Selection
  3. Copy/Cut All or Selection
  4. Paste or Paste Previous
  5. Delete Whitespace around Cursor
  6. Move Cursor to Beginning of Line/Paragraph
  7. Move Cursor by Text Block
  8. Move Cursor to Bracket/Quote
  9. Move Cursor to Punctuation
  10. Delete Text Block
  11. Toggle Comment Current Line
  12. Insert Date Time

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