Regular expressions and characters as č, ? ť ...

Hi. I have this problem with regular expressions. The next piece of code is work only with string without diacritics. If I use as pattern character with diacritic the matcher is not find any occurence of a character. The code:

String pat ="č";// "a"

String text ="naj čalamada"

Pattern pattern = Pattern.compile(pat, Pattern.CASE_INSENSITIVE);

Matcher matcher = pattern.matcher(text);

while (matcher.find()){}

If I uncomment character 'a' its occurence will be founded but occurence of 'č' is not found. :(

Can you tell me what is wrong ?

If I use flag Pattern.CASE_INSENSITIVE | Pattern.CANON_EQ nothing will be changed.

Thanks for all replays.

[896 byte] By [komofeia] at [2007-10-2 4:57:16]