+void
+enter_todolist(State* state, char* list_name)
+{
+ TodoList* new_todolist;
+
+ new_todolist = malloc(sizeof(TodoList));
+ new_todolist->list_name = list_name;
+ new_todolist->item_list = malloc(0);
+ new_todolist->item_count = 0;
+
+ state->cur_todolist = new_todolist;
+}
+
+void
+exit_todolist(State* state)
+{
+ Board* board;
+ TodoList** todolist_list;
+
+ if (state->cur_todolist == NULL) {
+ return;
+ }
+
+ /* append new todolist to board */
+ board = state->board;
+ todolist_list = board->todolist_list;
+
+ board->todolist_count += 1;
+ todolist_list = realloc(todolist_list, board->todolist_count*sizeof(TodoList*));
+ todolist_list[board->todolist_count-1] = state->cur_todolist;
+ state->cur_todolist = NULL;
+
+ /* save */
+ board->todolist_list = todolist_list;
+
+}
+
+void
+enter_todoitem(State* state, char* item_name)
+{
+
+}
+
+void
+exit_todoitem(State* state)
+{
+
+}
+
+void
+set_description(State* state, char* description)
+{
+
+}
+
+void
+set_due(State* state, char* due)
+{
+
+}
+
+void
+add_subtask(State* state, char* subtask_name, SubTaskState subtask_state)
+{
+
+}
+