How do I translate 8bit characters into 7bit characters? (i.e. Ü to U)

Question

I\'m looking for pseudocode, or sample code, to convert higher bit ascii characters (like, Ü which is extended ascii 154) into U (which is ascii 85).

My initial gues

Answer 1

Is converting Ü to U really what you would like to do? I don't know about other languages but in German Ü would become Ue, ö would become oe, etc.