al-pp.el 1.1 KB

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  1. ;;; al-pp.el --- Additional functionality for pp
  2. ;; Copyright © 2016 Alex Kost
  3. ;; This program is free software; you can redistribute it and/or modify
  4. ;; it under the terms of the GNU General Public License as published by
  5. ;; the Free Software Foundation, either version 3 of the License, or
  6. ;; (at your option) any later version.
  7. ;;
  8. ;; This program is distributed in the hope that it will be useful,
  9. ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11. ;; GNU General Public License for more details.
  12. ;;
  13. ;; You should have received a copy of the GNU General Public License
  14. ;; along with this program. If not, see <http://www.gnu.org/licenses/>.
  15. ;;; Code:
  16. (defun al/pp-enable-undo (_expression buffer-name)
  17. "Enable undo in `buffer-name'.
  18. This function is intended to be used as an 'after' advice for
  19. `pp-display-expression'."
  20. ;; `pp-display-expression' uses `with-output-to-temp-buffer' which
  21. ;; disables undo by setting `buffer-undo-list' to t.
  22. (with-current-buffer buffer-name
  23. (setq buffer-undo-list nil)))
  24. (provide 'al-pp)
  25. ;;; al-pp.el ends here