stringprep_utf8_nfkc_normalize(3)

NAME
stringprep_utf8_nfkc_normalize - API function

SYNOPSIS
#include <stringprep.h>

char * stringprep_utf8_nfkc_normalize(const char * str, ssize_t len);

ARGUMENTS

const char * str
    a UTF-8 encoded string.

ssize_t len
    length of str , in bytes, or -1 if str is nul-terminated.

DESCRIPTION
Converts a string into canonical form, standardizing such issues as whether a character with an accent is represented as a base character and combining accent or as a single precomposed character. The normalization mode is NFKC (ALL COMPOSE). It standardizes differences that do not affect the text content, such as the above-mentioned accent representation. It standardizes the "compatibility" characters in Unicode, such as SUPERSCRIPT THREE to the standard forms (in this case DIGIT THREE). Formatting information may be lost but for most text operations such characters should be considered the same. It returns a result with composed forms rather than a maximally decomposed form. Return value: a newly allocated string, that is the NFKC normalized form of str .

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 © 2002-2026 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/