extern void strbuf_trim(struct strbuf *);
extern void strbuf_rtrim(struct strbuf *);
extern void strbuf_ltrim(struct strbuf *);
+extern int strbuf_reencode(struct strbuf *sb, const char *from, const char *to);
+extern void strbuf_tolower(struct strbuf *sb);
extern int strbuf_cmp(const struct strbuf *, const struct strbuf *);
/*