Add drafts and tests

TODO.txt

@@ -0,0 +1,5 @@
+	statements
+		switch?
+		return
+		break in switch, loops
+		continue in loops

drafts/c.c

@@ -0,0 +1,43 @@
+#include <stdio.h>
+#include <setjmp.h>
+
+enum jb_t {
+    j_function,
+    j_loop,
+    j_switch,
+};
+
+struct jb_record
+{
+    jmp_buf   jb;
+    enum jb_t type;
+    oop       result;
+    struct jb_record next;
+};
+
+struct jb_record *jbs= 0;
+
+int eval(oop ast)
+{
+    case t_call: {
+	pushJbRec();
+	if (0 != set_jmp(jbs->jb)) {
+	    oop result = jbs->result;
+	    popJbRec();
+	    return result;
+	}
+	// run the body of the function here
+	result = (each statement in the func body...);
+	popJbRec();
+	return result;
+    }
+    setjmp(jb);
+    if (n < 2) return 1;
+    return 1 + f(n-1) + f(n-2);
+}
+
+int main()
+{
+    printf("%zi\n", sizeof(jmp_buf));
+    printf("%i\n", f(5));
+}

test2.txt

@@ -1,10 +1,13 @@
 fun f() {
-    if (1) {
-        return 12
-        15
-    } else {
-        return 13
-        14
+    var i = 0
+    while (i<10) {
+        print(i)
+        if (i == 5) {
+            return 42
+        }
+        else {
+            i = i + 1
+        }
     }
 }
 f()