I used to rely on M-h to mark the structural element in Emacs; in text buffers, that’d be the paragraph, in org buffers, that was the whole outline item (when the cursor was in the heading line, at least).
Ever since I installed Emacs for Mac OS X which now is also on Emacs 28.1, this shortcut wouldn’t work for me anymore, because my Meta key is my left Command key, and Cmd-H is the macOS shortcut to hide the frontmost app.
I’m rather happy about Emacs for Mac OS X’s adherence to default macOS shortcuts.
So I looked for alternative key bindings.
My modal input scheme (Xah Fly Keys) has selection shortcuts on the number keys 6, 7, 8 and 9. But the one on 9 never made sense to me, so I now use that key to select the paragraph or org-element.
My own function that does the selection:
(defun ct/mark-paragraph () "Mark the paragraph or structural element, depending on the mode." (interactive) (cond ((derived-mode-p 'org-mode) (org-mark-element)) ((derived-mode-p 'web-mode) (web-mode-mark-and-expand)) (t (mark-paragraph))))
This function is extensible to e.g. select an enclosing HTML element in
web-mode or a function or type or other structural element in C code or Swift. I have yet to add these.
Update: Screw it, I just added the HTML variant. Didn’t even know it was bound to C-c RET until I looked for a suitable function.
derived-mode-p to test for both same modes, and derived modes; so e.g.
(derived-mode-p 'outline-mode) will also return non-nil when visiting an org-mode buffer, since
org-mode is derived from
outline-mode. Got this tip from a post by Bozhidar Batsov.
A better name would maybe be
ct/mark-paragraph-dwim because it’s context sensitive and does different things in different modes.
The key binding isn’t interesting, but here it is for completion:
(define-key xah-fly-command-map (kbd "9") #'ct/mark-paragraph) ;; was 'xah-select-text-in-quote
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