punycode_encode(3) -- Linux man page





#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);  


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

 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.)


Converts a sequence of code points (presumed to be Unicode code points) to Punycode.  


 The return value can be any of the punycode_status values defined above except punycode_bad_input

punycode_success , then output_size and output might contain garbage.  


Report bugs to <bug-libidn@gnu.org>.  


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


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