transliterator_transliterate允许一些字符

Question

I use following code to get rid of accented characters.

$value = 'Čč, ď, š, žť.';
echo transliterator_transliterate('Any-Latin; Latin-ASCII; [\u0080-\u7fff] remove', $value);

It works great, but now I need to keep some of them. For instance I would like to keep

Č,č and ď

so the output in my example looks like:

Čč, ď, s, zt.

Is there any parameter to configure transliterator to ignore transliteration of some characters?