| 1 | #!/usr/bin/env newlisp |
| 2 | |
| 3 | (setq L '(1 2 3)) |
| 4 | (println (first L)) ; le premier élément |
| 5 | (println (rest L)) ; la liste privée du premier élément |
| 6 | (println (last L)) ; le dernier élément |
| 7 | |
| 8 | (println (rest '(1))) |
| 9 | (println (rest '())) |
| 10 | ; return an error: empty list |
| 11 | ;(println (first '())) |
| 12 | ;(println (last '())) |
| 13 | |
| 14 | (define (list-length a-list) |
| 15 | (if a-list |
| 16 | (+ 1 (list-length (rest a-list))) |
| 17 | 0)) |
| 18 | |
| 19 | (println (list-length L)) |
| 20 | |
| 21 | (println (length L)) |
| 22 | |
| 23 | type list ::= empty-list | first * list |
| 24 | |
| 25 | (setq x 1) |
| 26 | (println (+ x 1)) |
| 27 | |
| 28 | (set 'x 1 'y 2) |
| 29 | (let ((x 3) (y 4)) |
| 30 | (println x) |
| 31 | (println (list x y))) |
| 32 | (println "x="x" y="y) |
| 33 | |
| 34 | (setq x 3 y 4) |
| 35 | (let ((x 1) (y 2)) |
| 36 | (println "x="x" y="y)) |
| 37 | (println "x="x" y="y) |
| 38 | |
| 39 | (setq x 3 y 4) |
| 40 | (let ((y 2)) |
| 41 | (setq x 5 y 6) |
| 42 | (println "x="x" y="y)) |
| 43 | (println "x="x" y="y) |
| 44 | |
| 45 | (exit) |