libidn punycode_decode(3)
NAME
punycode_decode - decode Punycode to Unicode
SYNOPSIS
#include
int punycode_decode(size_t input_length, const char []
input, size_t * output_length
ARGUMENTS
size_t input_length
The number of ASCII code points in the input
array.
const char [] input
An array of ASCII code points (0..7F).
size_t * output_length
The caller passes in the maximum number of code
points that it can receive into the output array
(which is also the maximum number of flags that
it can receive into the case_flags array, if
case_flags is not a NULL pointer). On success-
ful return it will contain the number of code
points actually output (which is also the number
of flags actually output, if case_flags is not a
null pointer). The decoder will never need to
output more code points than the number of ASCII
code points in the input, because of the way the
encoding is defined. The number of code points
output cannot exceed the maximum possible value
of a punycode_uint, even if the supplied
output_length is greater than that.
punycode_uint [] output
An array of code points like the input argument
of punycode_encode() (see above).
unsigned char [] case_flags
A NULL pointer (if the flags are not needed by
the caller) or an array of boolean values paral-
lel to the output array. Nonzero (true,
flagged) suggests that the corresponding Unicode
character be forced to uppercase by the caller
(if possible), and zero (false, unflagged) sug-
gests that it be forced to lowercase (if possi-
ble). ASCII code points (0..7F) are output
already in the proper case, but their flags will
be set appropriately so that applying the flags
would be harmless.
libidn Last change: 1.9 1
libidn punycode_decode(3)
DESCRIPTION
Converts Punycode to a sequence of code points (presumed to
be Unicode code points).
RETURN VALUE
The return value can be any of the Punycode_status values
defined above. If not PUNYCODE_SUCCESS, then output_length,
output, and case_flags 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