Turkish characters in permitted_uri_chars and alpha_dash validation

[eluser]Usman -Halal IT[/eluser]
Hi,
I want to add these Turkish characters (İ, Ü, Ö, Ç, Ş, Ğ, I, ü, ö, ç, ş, ğ) in permitted uri chars.
I have tried something like that

Code:

$config['permitted_uri_chars'] = 'a-z 0-9~%.:_Ş\-';

but doesn't work.

I also want to add turkish characters in alpha_dash in validation library.

Any ideas?

[eluser]Usman -Halal IT[/eluser]
Hi,
Any help? Still having problem.

[eluser]Unknown[/eluser]
in case of the chr(135)
I use the function chr, to let you know its ascii value
I did added the character ç
to the permited_uri_chars
and did work