extern void stripspace(struct strbuf *buf, int skip_comments);
extern int launch_editor(const char *path, struct strbuf *buffer, const char *const *env);
+extern int strbuf_branchname(struct strbuf *sb, const char *name);
+extern int strbuf_check_branch_ref(struct strbuf *sb, const char *name);
+
#endif /* STRBUF_H */