fn.normalizeUnicode( $arg as String?, [$normalizationForm as String] ) as String?
Return the argument normalized according to the normalization criteria for a normalization form identified by the value of $normalizationForm. The effective value of the $normalizationForm is computed by removing leading and trailing blanks, if present, and converting to upper case.
|$arg||The string to normalize.|
|$normalizationForm||The form under which to normalize the specified string: NFC, NFD, NFKC, or NFKD.|
fn.normalizeUnicode("Abcd"); => Abcd