The EDITOR editor should be able to work without use of "advanced" terminal functionality (like old ed or ex mode of vi). It was used on teletype terminals.
A VISUAL editor could be a full screen editor as vi or emacs.
Please change to:
${VISUAL:-vim} -c "SuperMan $*"
Visual is where vi got its name from after all! :)
VISUAL vs EDITOR what's the difference?
Please change to:
Visual is where
vigot its name from after all! :)