Function: idlwave-split-menu

idlwave-split-menu is a byte-compiled function defined in idlwave.el.gz.

Signature

(idlwave-split-menu MENU N)

Documentation

Split the MENU into submenus of maximum length N.

Aliases

idlwave-split-menu-emacs (obsolete since 28.1)

Source Code

;; Defined in /usr/src/emacs/lisp/progmodes/idlwave.el.gz
(defun idlwave-split-menu (menu N)
  "Split the MENU into submenus of maximum length N."
  (if (<= (length (nth 1 menu)) (1+ N))
      ;; No splitting needed
      menu
    (let* ((title (car menu))
	   (entries (cdr (nth 1 menu)))
	   (menu nil)
	   (cnt 0)
	   (nextmenu nil))
      (while entries
	(while (and entries (< cnt N))
	  (setq cnt (1+ cnt)
		nextmenu (cons (car entries) nextmenu)
		entries (cdr entries)))
	(setq nextmenu (nreverse nextmenu))
	(prin1 nextmenu)
	(setq nextmenu (cons (format "%s...%s"
				     (car (car nextmenu))
				     (car (nth (1- cnt) nextmenu)))
			     nextmenu))
	(setq menu (cons nextmenu menu)
	      nextmenu nil
	      cnt 0))
      (setq menu (nreverse menu))
      (setq menu (cons title menu))
      menu)))