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Emacs Smart Split

I spend a lot of time in front of Emacs in a terminal window, and I share my configuration across all my computers. At work I have a large monitor, so I split the emacs frame into 3 side-by-side 80-column windows. At home I have a smaller screen with room only enough for two windows. Sometimes I just use the laptop display. To share the same configuration file, I use the following snippet:

(defun smart-split ()
  "Split the frame into 80-column sub-windows, and make sure no window has
   fewer than 80 columns."
  (defun smart-split-helper (w)
    "Helper function to split a given window into two, the first of which has 
     80 columns."
    (if (> (window-width w) (* 2 81))
    (let ((w2 (split-window w 82 t)))
      (smart-split-helper w2))))
  (smart-split-helper nil))


The smart-split function split the emacs frame into a maximum number of 80-column windows. A very portable solution.

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