+void util_add_to_deletion_list ( const gchar* filename );
+void util_remove_all_in_deletion_list ( void );
+
+gchar *util_str_remove_chars(gchar *string, const gchar *chars);
+
+/** Returns @c TRUE if @a ptr is @c NULL or @c *ptr is @c FALSE. */
+#define EMPTY(ptr) \
+ (!(ptr) || !*(ptr))
+
+/** Iterates all the nodes in @a list.
+ * @param node should be a (@c GList*).
+ * @param list @c GList to traverse. */
+#define foreach_list(node, list) \
+ for (node = list; node != NULL; node = node->next)