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idn(1) [centos man page]

IDN(1)								   User Commands							    IDN(1)

idn - Internationalized Domain Names command line tool SYNOPSIS
Internationalized Domain Name (IDN) convert STRINGS, or standard input. Command line interface to the internationalized domain name library. All strings are expected to be encoded in the preferred charset used by your locale. Use `--debug' to find out what this charset is. You can override the charset used by setting environment variable CHARSET. To process a string that starts with `-', for example `-foo', use `--' to signal the end of parameters, as in `idn --quiet -a -- -foo'. Mandatory arguments to long options are mandatory for short options too. -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', `SASL- prep' --debug Print debugging information --quiet Silent operation AUTHOR
Written by Simon Josefsson. REPORTING BUGS
Report bugs to: bug-libidn@gnu.org GNU Libidn home page: <http://www.gnu.org/software/libidn/> General help using GNU software: <http://www.gnu.org/gethelp/> COPYRIGHT
Copyright (C) 2013 Simon Josefsson. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
The full documentation for idn is maintained as a Texinfo manual. If the info and idn programs are properly installed at your site, the command info idn should give you access to the complete manual. idn 1.28 July 2013 IDN(1)

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IDNA::Punycode(3pm)					User Contributed Perl Documentation				       IDNA::Punycode(3pm)

IDNA::Punycode - encodes Unicode string in Punycode SYNOPSIS
use IDNA::Punycode; idn_prefix('xn--'); $punycode = encode_punycode($unicode); $unicode = decode_punycode($punycode); DESCRIPTION
IDNA::Punycode is a module to encode / decode Unicode strings into Punycode, an efficient encoding of Unicode for use with IDNA. This module requires Perl 5.6.0 or over to handle UTF8 flagged Unicode strings. FUNCTIONS
This module exports following functions by default. encode_punycode $punycode = encode_punycode($unicode); takes Unicode string (UTF8-flagged variable) and returns Punycode encoding for it. decode_punycode $unicode = decode_punycode($punycode) takes Punycode encoding and returns original Unicode string. idn_prefix idn_prefix($prefix); causes encode_punycode() to add $prefix to ACE-string after conversion. As a side-effect decode_punycode() will only consider strings beginning with $prefix as punycode representations. According to RFC 3490 the ACE prefix "xn--" had been chosen as the standard. Thus, "xn--" is also the default ACE prefix. For compat- ibility I'm leaving idn_prefix() in the module. Use "idn_prefix(undef)" to get the old behaviour. These functions throws exceptionsn on failure. You can catch 'em via "eval". AUTHORS
Tatsuhiko Miyagawa <miyagawa@bulknews.net> is the original author and wrote almost all the code. Robert Urban <urban@UNIX-Beratung.de> added "idn_prefix()". This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
http://www.ietf.org/internet-drafts/draft-ietf-idn-punycode-01.txt Encode::Punycode perl v5.8.8 2005-09-01 IDNA::Punycode(3pm)
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