translit inrange outrange string
          Translate characters  in  string,  changing  characters
          occurring  in inrange to the corresponding character in
          outrange. Inrange and outrange may be list  of  charac-
          ters or a range in the form `A-M'.  For example:
                  translit a-z A-Z foobar

          returns "FOOBAR".

          This command currently only supports characters in ASCII range; UTF-8 characters
          out of this range will generate an error.

          This command is provided by Extended Tcl.