@subheading tld_get_z
@anchor{tld_get_z}
@deftypefun {int} {tld_get_z} (const char * @var{in}, char ** @var{out})
@var{in}: Zero terminated character array to process.
@var{out}: Zero terminated ascii result string pointer.
Isolate the top-level domain of @code{in} and return it as an ASCII
string in @code{out}. The input string @code{in} may be UTF-8, ISO-8859-1 or
any ASCII compatible character encoding.
@strong{Return value:} Return @code{TLD_SUCCESS} on success, or the corresponding
@code{Tld_rc} error code otherwise.
@end deftypefun