mapchan - A program which allows you to transform the input and output
of a terminal (including a serial port terminal).  It is useful when:

  * You need to work with various encodings on various virtual
    terminals
  * You have an assortment of terminals, not one of which supports
    your favorite encoding.

This software is an incomplete implementation of the functionality of
the utility "mapchan" of SCO Unix.

WWW: https://mapchan.sourceforge.io/