emacs - Keyboard scrolling with acceleration -


one can map key scroll up.

(defun up1()   (interactive)   (scroll-up 1)) (defun up2()   (interactive)   (scroll-up 2)) (global-set-key "\m-]" 'up2)

i looking instead following behavior. first handful of scrolls call up1() , subsequent ones call up2().

how this:

(setq my-scroll-counter 0) (setq my-scroll-limit 5)  (defun up1()   (interactive)   (if (eq last-command this-command)       (incf my-scroll-counter)     (setq my-scroll-counter 0))   (if (> my-scroll-counter my-scroll-limit)        (scroll-up 2)     (scroll-up 1)))  (global-set-key "\m-]" 'up1)

if want little fancier, calculate scroll step dynamically based on how many times repeat command:

(setq my-scroll-counter 0) (setq my-maximum-scroll 20) (setq my-scroll-acceleration 4)  (defun up1()   (interactive)   (if (eq last-command this-command)       (incf my-scroll-counter)     (setq my-scroll-counter 0))   (scroll-up (min                 (+ 1 (/ my-scroll-counter my-scroll-acceleration))                 my-maximum-scroll)))  (global-set-key "\m-]" 'up1)

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