+const char *
+_notmuch_database_relative_path (notmuch_database_t *notmuch,
+ const char *path);
+
+notmuch_status_t
+_notmuch_database_split_path (void *ctx,
+ const char *path,
+ const char **directory,
+ const char **basename);
+
+notmuch_status_t
+_notmuch_database_find_directory_id (notmuch_database_t *database,
+ const char *path,
+ unsigned int *directory_id);
+
+const char *
+_notmuch_database_get_directory_path (void *ctx,
+ notmuch_database_t *notmuch,
+ unsigned int doc_id);