in a keystroke sequence
(e.g. Esc, Ctrl, Alt and so on..... ).
+Big breakthrough - the code can now distinguish between
+normal "printable" keys and keys that should not be
+printed (e.g. arrow keys, Ctrl sequences and so on).
+
+The next goal is to make the code move the cursor to the
+left (when left-arrow is pressed) and delete a char (when
+backspace is pressed).
+
Still some way to go to get to a REAL readline, but we are
"on the way......"