}
/**
+ * @param string $index
+ * @return string
* @since 1.16.3
*/
public function getLetterByIndex( $index ) {
}
/**
+ * @param string $index
+ * @return string
* @since 1.16.3
*/
public function getSortKeyByLetterIndex( $index ) {
}
/**
+ * @param string $index
+ * @return string
* @since 1.16.3
*/
public function getFirstLetterCount() {
/**
* Test if a code point is a CJK (Chinese, Japanese, Korean) character
+ * @param int $codepoint
+ * @return bool
* @since 1.16.3
*/
public static function isCjk( $codepoint ) {