RosettaCodeData/Task/Range-extraction/Emacs-Lisp/range-extraction-2.l

28 lines
747 B
Common Lisp

(setq max-lisp-eval-depth 10000)
(defun ab (a ls)
(if ls (if (= (+ a 1) (car ls) )
(abc a (car ls) (cdr ls) )
(format "%d,%s" a (ab (car ls) (cdr ls) )))
(format "%d" a) ))
(defun abc (a b ls)
(if ls (if (= (+ b 1) (car ls) )
(abcd a (car ls) (cdr ls) )
(format "%d,%d,%s" a b (ab (car ls) (cdr ls) )))
(format "%d,%d" a b) ))
(defun abcd (a c ls)
(if ls (if (= (+ c 1) (car ls) )
(abcd a (car ls) (cdr ls) )
(format "%d-%d,%s" a c (ab (car ls) (cdr ls) )))
(format "%d-%d" a c) ))
(defun rangext (ls)
(if ls (ab (car ls) (cdr ls) ) ""))
(insert (rangext '(0 1 2 4 6 7 8 11 12 14
15 16 17 18 19 20 21 22 23 24
25 27 28 29 30 31 32 33 35 36
37 38 39) ))