Pending:

  COPY key.
     Activated only on *COUNTRY ARABIC.
     Turn off keyboard, numeric analysis, number fonts?

  Intercept VDU 23 to use look-up on Arabic character and current
  ARABIC<N> alphabet.

  MODE 7 - suppress arabic???
    (Call to MODE 7 should screenflip UK?)
Long term:
  table-drive cursor-key reversals
  Printer (ISO -> VDU 2 stream) & ISO Emulator.
  Fast font definition - Paul.
  REVERSE THE FONT before getting Paul to generate!  

Paul: See other file.

Undo:
  remove translations of soft space to aleph