char **strv_parse_nulstr(const char *s, size_t l);
char **strv_split_nulstr(const char *s);
char **strv_parse_nulstr(const char *s, size_t l);
char **strv_split_nulstr(const char *s);
#define STRV_FOREACH(s, l) \
for ((s) = (l); (s) && *(s); (s)++)
#define STRV_FOREACH(s, l) \
for ((s) = (l); (s) && *(s); (s)++)
#define STRV_FOREACH_PAIR(x, y, l) \
for ((x) = (l), (y) = (x+1); (x) && *(x) && *(y); (x) += 2, (y) = (x + 1))
#define STRV_FOREACH_PAIR(x, y, l) \
for ((x) = (l), (y) = (x+1); (x) && *(x) && *(y); (x) += 2, (y) = (x + 1))