-/* Give short description of command ("dsc_short"), get long descrption. */
-extern char * get_command_longdsc(struct World * world, char * dsc_short);
+/* Is "id" the ID of command whose dsc_short is "shortdsc"? Answer in binary. */
+extern uint8_t is_command_id_shortdsc(uint8_t id, char * shortdsc);