punycode_encode(3) libidn punycode_encode(3)
NAME
punycode_encode - API function
SYNOPSIS
#include <punycode.h> int punycode_encode(size_t input_length, const punycode_uint [] input, const unsigned char [] case_flags, size_t * output_length, char [] output);ARGUMENTS
size_t input_length
The number of code points in the
input array and the
number of flags in the
case_flags array.
const punycode_uint [] input
An array of code points. They are presumed to be Unicode
code points, but that is not strictly REQUIRED. The
array contains code points, not code units. UTF-16 uses
code units D800 through DFFF to refer to code points
10000..10FFFF. The code points D800..DFFF do not occur
in any valid Unicode string. The code points that can
occur in Unicode strings (0..D7FF and E000..10FFFF) are
also called Unicode scalar values.
const unsigned char [] case_flags
A
NULL pointer or an array of boolean values parallel to
the
input array. Nonzero (true, flagged) suggests that
the corresponding Unicode character be forced to
uppercase after being decoded (if possible), and zero
(false, unflagged) suggests that it be forced to
lowercase (if possible). ASCII code points (0..7F) are
encoded literally, except that ASCII letters are forced
to uppercase or lowercase according to the corresponding
case flags. If
case_flags is a
NULL pointer then ASCII
letters are left as they are, and other code points are
treated as unflagged.
size_t * output_length
The caller passes in the maximum number of ASCII code
points that it can receive. On successful return it will
contain the number of ASCII code points actually output.
char [] output
An array of ASCII code points. It is *not*
null-terminated; it will contain zeros if and only if the
input contains zeros. (Of course the caller can leave
room for a terminator and add one if needed.)
DESCRIPTION
Converts a sequence of code points (presumed to be Unicode code
points) to Punycode.
Return value: The return value can be any of the
Punycode_status values defined above except
PUNYCODE_BAD_INPUT. If not
PUNYCODE_SUCCESS, then
output_size and
output might contain
garbage.
DESCRIPTION
Converts a sequence of code points (presumed to be Unicode code
points) to Punycode.
Return value: The return value can be any of the
Punycode_status values defined above except
PUNYCODE_BAD_INPUT. If not
PUNYCODE_SUCCESS, then
output_size and
output might contain
garbage.
REPORTING BUGS
Report bugs to <help-libidn@gnu.org>.
General guidelines for reporting bugs: https://www.gnu.org/gethelp/
GNU Libidn home page: https://www.gnu.org/software/libidn/
COPYRIGHT
Copyright (C) 2002-2024 Simon Josefsson.
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.
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. As an alternative you
may obtain the manual from:
https://www.gnu.org/software/libidn/manual/libidn 1.42 punycode_encode(3)
