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#ifndef BUF_H
#define BUF_H
#include <stddef.h>
typedef struct buf {
size_t sz, cap;
char *buf;
} str_t;
typedef struct {
const char *s;
size_t n;
} strv_t;
/* string views */
#define strv(s) _Generic((s),\
char *: strv_cstr, const char *: strv_cstr,\
str_t *: strv_pstr, const str_t *: strv_pstr,\
str_t: strv_str\
)(s)
strv_t strv_cstr(const char *s);
static inline strv_t strv_pstr(const str_t *s) { return (strv_t) { s->buf, s->sz }; }
static inline strv_t strv_str(str_t s) { return (strv_t) { s.buf, s.sz }; }
char strv_next(strv_t *s);
int strv_split(strv_t *src, int chr, strv_t *dest);
/* strings */
void str_init(str_t *, size_t);
void str_grow(str_t *, size_t);
void str_free(str_t *);
void str_cat(str_t *b, strv_t s);
void str_catc(str_t *b, char c);
void str_fmt(str_t *b, const char *fmt, ...);
#endif
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