*/
extern int for_each_reflog(each_ref_fn, void *);
-/** Returns 0 if target has the right format for a ref. **/
+#define CHECK_REF_FORMAT_OK 0
+#define CHECK_REF_FORMAT_ERROR (-1)
+#define CHECK_REF_FORMAT_ONELEVEL (-2)
+#define CHECK_REF_FORMAT_WILDCARD (-3)
extern int check_ref_format(const char *target);
/** rename ref, return 0 on success **/