Tom Willemse
7bdefe9504
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26 lines
1.5 KiB
Org Mode
26 lines
1.5 KiB
Org Mode
#+TITLE: IELM & Paredit
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#+TAGS: emacs
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#+COMMENT_STATUS: closed
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#+STATUS: publish
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#+DATE: Wed, 12 Apr 2023 07:02:45 GMT
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#+UPDATE_URL: /admin/modify-post/2023%252f04%252f12%252fielm-paredit
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For a while I've been bothered by being unable to use IELM to evaluate Emacs Lisp expressions. Then [[https://www.n16f.net/blog/making-ielm-more-comfortable/][Making IELM More Comfortable]] pointed out that using paredit in IELM causes the =RET= and =C-j= keybindings to be bound to the wrong functions and proposes to fix them. The given fix, however, appears to change the keybindings for all buffers using paredit. I don't want that, and Emacs can do better!
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A quick search yielded [[https://stackoverflow.com/a/13102821][Buffer-locally overriding minor-mode key bindings in Emacs]] suggesting a fix. My adaptation of that solution:
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#+begin_src emacs-lisp
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(defun oni-elisp-ielm-remove-paredit-newline-keys ()
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"Disable ‘C-j’ and ‘RET’ keybindings from ‘paredit-mode’."
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(let ((oldmap (map-elt minor-mode-map-alist 'paredit-mode))
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(newmap (make-sparse-keymap)))
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(set-keymap-parent newmap oldmap)
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(define-key newmap (kbd "RET") nil)
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(define-key newmap (kbd "C-j") nil)
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(make-local-variable 'minor-mode-overriding-map-alist)
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(push `(paredit-mode . ,newmap) minor-mode-overriding-map-alist)))
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(add-hook 'ielm-mode-hook #'oni-elisp-ielm-remove-paredit-newline-keys)
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#+end_src
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Defining =RET= and =C-j= as =nil= means that the keybinding defaults back to the major-mode keybinding.
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