- wxExpr *type_expr = node->Item(0);
- wxExpr *end_expr = node->Item(1);
- wxExpr *dist_expr = node->Item(2);
- wxExpr *size_expr = node->Item(3);
- wxExpr *name_expr = node->Item(4);
- wxExpr *id_expr = node->Item(5);
+ wxExpr *type_expr = node->Nth(0);
+ wxExpr *end_expr = node->Nth(1);
+ wxExpr *dist_expr = node->Nth(2);
+ wxExpr *size_expr = node->Nth(3);
+ wxExpr *name_expr = node->Nth(4);
+ wxExpr *id_expr = node->Nth(5);