6 focus_history_t *make_focus_history(void);
7 node_list_t *make_node_list(void);
8 void history_add(focus_history_t *, node_t *);
9 void history_remove(focus_history_t *, node_t *);
10 void empty_history(focus_history_t *);
11 node_t *history_get(focus_history_t *, int);
12 node_t *history_last(focus_history_t *, node_t *, client_select_t);
13 int history_rank(focus_history_t *, node_t *);