idna-program
Name of the GNU Libidn idn application. The default is
idn. This variable can be customized.
idna-environment
List of environment variable definitions prepended to
process-environment. The default is ("CHARSET=UTF-8").
This variable can be customized.
idna-to-ascii-parameters
List of parameters passed to idna-program to invoke IDNA ToASCII
mode. The default is ("--quiet" "--idna-to-ascii"
"--usestd3asciirules"). This variable can be customized.
idna-to-unicode-parameters
Parameters passed idna-program to invoke IDNA ToUnicode mode.
The default is ("--quiet" "--idna-to-unicode"
"--usestd3asciirules"). This variable can be customized.
idna-to-ascii
string
Returns an ASCII Compatible Encoding (ACE) of the string computed by
the IDNA ToASCII operation on the input string, after converting
the input to UTF-8.
idna-to-unicode
string
Returns a possibly multibyte string which is the output of the IDNA
ToUnicode operation computed on the input string.