Can't do lc("\x{1E9E}") on non-UTF-8 locale; resolved to "\x{1E9E}". at d:/tmp/job/eszet.pl line 33. Can't do lc("\x{1E9E}") on non-UTF-8 locale; resolved to "\x{1E9E}". at d:/tmp/job/eszet.pl line 33. Perlversion 5.032001 === local off LANG=DEU * TEST UC ß -> 223 SS -> 83 SS -> 83 * TEST LC ẞ -> 7838 ß -> 223 ß -> 223 === local on LANG=DEU * TEST UC ß -> 223 ß -> 223 ß -> 223 * TEST LC ẞ -> 7838 ẞ -> 7838 ẞ -> 7838