char *key_value_copy(const char *src, size_t len, const char *key);
int skip_cells(const char *s, size_t cells_to_skip, size_t *result);
__must_check int strwidth(const char *s, size_t *result);
+__must_check int sanitize_str(const char *src, size_t max_width,
+ char **result, size_t *width);