<java/kotlin Normalizer fails to normalize some ac...

# stackoverflow

[user]

java/kotlin Normalizer fails to normalize some accented letters
I noticed that the Normalizer leaves some non-ascii letters alone, such as the first letter in the name of the Polish city Łódź. Here are some more:
import java.text.Normalizer

fun main() {
for (i in 0xC0..0x170) {
val ch = Char(i)
if (!ch.isLetter()) continue
val norm = Normalizer.normalize(ch.toString(), Normalizer.Form.NFD)
if (norm.length >= 2) {
// println("'$ch' => '${norm[0]}' ${norm[0].code} '${norm[1]}' ${norm[1].code}")
}...