/**
* Validate and normalize a UTF string to NFKC
*
* @param string &$str Unchecked UTF string
* @return string The string, validated and in normal form
*/
function nfkc(&$str)
{
$pos = strspn($str, UTF8_ASCII_RANGE);
$len = strlen($str);
if ($pos == $len) {
// ASCII strings return immediately
return;
}
if (!isset($GLOBALS['utf_nfkc_qc'])) {
global $phpbb_root_path, $phpEx;
include $phpbb_root_path . 'includes/utf/data/utf_nfkc_qc.' . $phpEx;
}
if (!isset($GLOBALS['utf_compatibility_decomp'])) {
global $phpbb_root_path, $phpEx;
include $phpbb_root_path . 'includes/utf/data/utf_compatibility_decomp.' . $phpEx;
}
$str = utf_new_normalizer::recompose($str, $pos, $len, $GLOBALS['utf_nfkc_qc'], $GLOBALS['utf_compatibility_decomp']);
}
