Regex with language specific characters (ä, ö)

For a lookup, regex does not match characters such as ä, ö.
Any ideas around this?

Thanks,
Mihai

RegexMatch.xaml (7.4 KB)
list.cs (241 Bytes)

What about creating a find and replace lookup list if there aren’t too many characters…? You could replace the characters temporarily rather than converting it fully…