+extern char *get_id_string(struct id_element *ids, int id, char *def);
+extern int get_string_id(struct id_element *ids, char *str);
+extern int get_string_id(struct id_element *ids, char *str, int def);
+extern char *format_string(char *format, ...);
+extern char *object_name(class cl_base *o);
+extern char *case_string(enum letter_case lcase, char *str);