10.3 Options

idn recognizes these commands:

  -h, --help               Print help and exit

  -V, --version            Print version and exit

  -s, --stringprep         Prepare string according to nameprep profile

  -d, --punycode-decode    Decode Punycode

  -e, --punycode-encode    Encode Punycode

  -a, --idna-to-ascii      Convert to ACE according to IDNA (default mode)

  -u, --idna-to-unicode    Convert from ACE according to IDNA

      --allow-unassigned   Toggle IDNA AllowUnassigned flag (default off)

      --usestd3asciirules  Toggle IDNA UseSTD3ASCIIRules flag (default off)

      --no-tld             Don't check string for TLD specific rules
                             Only for --idna-to-ascii and --idna-to-unicode

  -n, --nfkc               Normalize string according to Unicode v3.2 NFKC

  -p, --profile=STRING     Use specified stringprep profile instead
                             Valid stringprep profiles: `Nameprep',
                             `iSCSI', `Nodeprep', `Resourceprep',
                             `trace', `SASLprep'

      --debug              Print debugging information

      --quiet              Silent operation

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