ps3: task 2

ps3/src/tree.c

@@ -130,7 +130,23 @@ static void node_print(node_t* node, int nesting)
 static node_t* convert_operator(node_t* node)
 {
   assert(node->type == OPERATOR);
-  // TODO: Task 2: Implement this function
+  switch (node->data.operator) {
+  case "or":
+    node->data.operator = "?:";
+    node_t *new = node_create(NUMBER_LITERAL, 0);
+    new->data.number_literal = 0;
+    append_to_list_node(node, new);
+    break;
+  case "and":
+    node->data.operator = "?:";
+    node_t *new = node_create(NUMBER_LITERAL, 0);
+    new->data.number_literal = 1;
+    append_to_list_node(node, new);
+    node_t *tmp = node->children[1];
+    node->children[1] = node->children[2];
+    node->children[2] = tmp;
+    break;
+  }
   return node;
 }