libidn punycode_encode(3)
NAME
punycode_encode - encode Unicode to Punycode
SYNOPSIS
#include
int punycode_encode(size_t input_length, const punycode_uint
[] input, const unsigned char [] case_flags
ARGUMENTSsize_t input_length
The number of code points in the input array andthe 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, notcode 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 lower-
case (if possible). ASCII code points (0..7F) are encoded literally, except that ASCII letters are forced to uppercase or lowercase accordingto 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.) libidn Last change: 1.9 1libidn punycode_encode(3)
DESCRIPTION
Converts a sequence of code points (presumed to be Unicode code points) to Punycode. RETURN VALUEThe 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
COPYRIGHT Copyright cO 2002, 2003, 2004, 2005, 2006, 2007, 2008 Simon Josefsson. Permission is granted to make and distribute verbatim copies. of this manual provided the copyright notice and this per-
mission 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.ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:_______________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE|
|____________________|__________________|_
| Availability | library/libidn ||____________________|__________________|_
| Interface Stability| Uncommitted ||____________________|_________________|
NOTES Source for LibIDN is available on http://opensolaris.org. libidn Last change: 1.9 2