From: Jérôme Benoit <jerome.benoit@piment-noir.org>
Date: Tue, 25 Apr 2017 18:30:56 +0000 (+0200)
Subject: Implement more exercices' functions
X-Git-Url: https://git.piment-noir.org/?p=TD_LISP.git;a=commitdiff_plain;h=7212827913f4e3b4c1fa577cd866ef1031577477

Implement more exercices' functions

Signed-off-by: Jérôme Benoit <jerome.benoit@piment-noir.org>
---

diff --git a/exercices/lists.lsp b/exercices/lists.lsp
new file mode 100755
index 0000000..d82de48
--- /dev/null
+++ b/exercices/lists.lsp
@@ -0,0 +1,86 @@
+#!/usr/bin/env newlisp
+
+(setq L '(1 9 3 7 0 5))
+(setq M '(2 6 5 4 0 1 3))
+
+(define (mem E L) ;la function mem a 2 arguments
+  (if (null? L) nil
+    (if (= (first L) E) true
+      (mem E (rest L)))))
+(println (mem 9 L))
+
+(define (boolmemrec E L)
+  (cond
+    ((null? L) nil)
+    ((= (first L) E) true)
+    ((mem E (rest L)))))
+(println (boolmemrec 10 L))
+
+(define (mem E L) ;la function mem a 2 arguments
+  (if (null? L) nil
+    (if (= (first L) E) L
+      (mem E (rest L)))))
+(println (mem 3 L))
+
+(define (mem E L)
+  (cond
+    ((null? L) nil)
+    ((= (first L) E) L)
+    ((mem E (rest L)))))
+(println (mem 9 L))
+(println (member 9 L))
+(println (mem 8 L))
+(println (member 8 L))
+
+(define (concatene L1 L2)
+  (if (null? L1) L2
+    (cons (first L1) (concatene (rest L1) L2))))
+(println (concatene L M))
+(println (append L M))
+
+;(trace true)
+
+(define (rang x L)
+  (if (boolmemrec x L)
+    (cond 
+      ((= x (first L)) 0)
+      ((+ 1 (rang x (rest L)))))
+    nil))
+(println (rang 4 L))
+(println (find 4 L))
+(println (rang 0 L))
+(println (find 0 L))
+
+;(trace nil)
+
+(define (tete n L) 
+  (cond 
+    ((null? L) nil)
+    ((= n 0) nil)
+    ((cons (first L) (tete (- n 1) (rest L))))))
+;FIXME: return nil after the first n elements in the list
+(println (tete 3 L))
+(println (slice L 0 3))
+(println (0 3 L))
+
+(define (inter L1 L2) 
+  (cond
+    ((null? L1) nil)
+    ((member (first L1) L2) (cons (first L1) (inter (rest L1) L2)))
+    ((inter (rest L1) L2))))
+;FIXME: return nil after ...
+(println (inter L M))
+(println (intersect L M))
+
+(setq N '(1 9 3))
+(define (inclu L1 L2) 
+  (cond
+    ((null? L1) true)
+    ((null? L2) nil)
+    ((= (first L1) (first L2)) (inclu (rest L1) (rest L2))) 
+    ((inclu L1 (rest L2)))))
+(println (inclu N L))
+(println (inclu L M))
+;did not found a newlisp builtin equivalent function
+
+(exit)