Keyboard.keycode and international keyboards

Hello!

I am working on the input, and I don't like the looks of the text box (1. it is html 2. it won't use spritefont)

so I want to build my own.

Now I am on a problem:

To intercept keyboard input we use keycode, and keycode to string.

Ok!

But.. Not everyone have same keycode for some of the special characters. For example to get $ I have to press Alt Gr + 4 (on Nordic keyboard), but for an American user they just need to press Shift and 4.

There's many more of those examples, even with simpler characters such as * ? and so on.

How do I do in this case?