strbuf: add xstrfmt helper

diff --git a/strbuf.h b/strbuf.h
index 7bd36216ff85aca61728b06cd06e451747676257..a594c24b2b0e9e82c16de1bb787758d561cb2e7b 100644 (file)
--- a/strbuf.h
+++ b/strbuf.h
@@ -17,20 +17,23 @@ extern void strbuf_init(struct strbuf *, size_t);
 extern void strbuf_release(struct strbuf *);
 extern char *strbuf_detach(struct strbuf *, size_t *);
 extern void strbuf_attach(struct strbuf *, void *, size_t, size_t);
-static inline void strbuf_swap(struct strbuf *a, struct strbuf *b) {
+static inline void strbuf_swap(struct strbuf *a, struct strbuf *b)
+{
        struct strbuf tmp = *a;
        *a = *b;
        *b = tmp;
 }
 
 /*----- strbuf size related -----*/
-static inline size_t strbuf_avail(const struct strbuf *sb) {
+static inline size_t strbuf_avail(const struct strbuf *sb)
+{
        return sb->alloc ? sb->alloc - sb->len - 1 : 0;
 }
 
 extern void strbuf_grow(struct strbuf *, size_t);
 
-static inline void strbuf_setlen(struct strbuf *sb, size_t len) {
+static inline void strbuf_setlen(struct strbuf *sb, size_t len)
+{
        if (len > (sb->alloc ? sb->alloc - 1 : 0))
                die("BUG: strbuf_setlen() beyond buffer");
        sb->len = len;
@@ -42,6 +45,8 @@ static inline void strbuf_setlen(struct strbuf *sb, size_t len) {
 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 *);
 
 /*
@@ -97,7 +102,8 @@ static inline struct strbuf **strbuf_split(const struct strbuf *sb,
 extern void strbuf_list_free(struct strbuf **);
 
 /*----- add data in your buffer -----*/
-static inline void strbuf_addch(struct strbuf *sb, int c) {
+static inline void strbuf_addch(struct strbuf *sb, int c)
+{
        strbuf_grow(sb, 1);
        sb->buf[sb->len++] = c;
        sb->buf[sb->len] = '\0';
@@ -113,10 +119,12 @@ extern void strbuf_splice(struct strbuf *, size_t pos, size_t len,
 extern void strbuf_add_commented_lines(struct strbuf *out, const char *buf, size_t size);
 
 extern void strbuf_add(struct strbuf *, const void *, size_t);
-static inline void strbuf_addstr(struct strbuf *sb, const char *s) {
+static inline void strbuf_addstr(struct strbuf *sb, const char *s)
+{
        strbuf_add(sb, s, strlen(s));
 }
-static inline void strbuf_addbuf(struct strbuf *sb, const struct strbuf *sb2) {
+static inline void strbuf_addbuf(struct strbuf *sb, const struct strbuf *sb2)
+{
        strbuf_grow(sb, sb2->len);
        strbuf_add(sb, sb2->buf, sb2->len);
 }
@@ -179,4 +187,13 @@ extern int fprintf_ln(FILE *fp, const char *fmt, ...);
 
 char *xstrdup_tolower(const char *);
 
+/*
+ * Create a newly allocated string using printf format. You can do this easily
+ * with a strbuf, but this provides a shortcut to save a few lines.
+ */
+__attribute__((format (printf, 1, 0)))
+char *xstrvfmt(const char *fmt, va_list ap);
+__attribute__((format (printf, 1, 2)))
+char *xstrfmt(const char *fmt, ...);
+
 #endif /* STRBUF_H */