idna_to_ascii_4i - phpMan

idna_to_ascii_4i(3)                 libidn                 idna_to_ascii_4i(3)



NAME
       idna_to_ascii_4i - convert Unicode domain name label to text

SYNOPSIS
       #include <idna.h>

       int idna_to_ascii_4i(const uint32_t * in, size_t inlen, char * out, int flags);

ARGUMENTS
       const uint32_t * in
                   input array with unicode code points.

       size_t inlen
                   length of input array with unicode code points.

       char * out  output zero terminated string that must have room for at least 63 char-
                   acters plus the terminating zero.

       int flags   an     Idna_flags     value,     e.g.,     IDNA_ALLOW_UNASSIGNED     or
                   IDNA_USE_STD3_ASCII_RULES.

DESCRIPTION
       The  ToASCII  operation  takes  a  sequence of Unicode code points that make up one
       label and transforms it into a sequence of code points in the ASCII range  (0..7F).
       If  ToASCII  succeeds, the original sequence and the resulting sequence are equiva-
       lent labels.

       It is important to note that the ToASCII operation can fail. ToASCII fails  if  any
       step  of  it  fails.  If  any step of the ToASCII operation fails on any label in a
       domain name, that domain name MUST NOT be used as an internationalized domain name.
       The method for deadling with this failure is application-specific.

       The  inputs to ToASCII are a sequence of code points, the AllowUnassigned flag, and
       the UseSTD3ASCIIRules flag. The output of ToASCII is either  a  sequence  of  ASCII
       code points or a failure condition.

       ToASCII  never  alters a sequence of code points that are all in the ASCII range to
       begin with (although it could fail). Applying the ToASCII operation multiple  times
       has exactly the same effect as applying it just once.

RETURN VALUE
       Returns 0 on success, or an Idna_rc error code.

REPORTING BUGS
       Report bugs to <bug-libidn AT gnu.org>.

COPYRIGHT
       Copyright © 2002, 2003, 2004 Simon Josefsson.
       Permission  is  granted  to make and distribute verbatim copies of this manual pro-
       vided the copyright notice and this permission notice are preserved on all  copies.

SEE ALSO
       The  full  documentation for libidn is maintained as a Texinfo manual.  If the info
       and libidn programs are properly installed at your site, the command

              info libidn

       should give you access to the complete manual.



libidn                              0.5.15                 idna_to_ascii_4i(3)

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