EKEY?
EKEY>CHAR
ELSE
EKEY?
( -- flag )
ansi
10.6.2.1307
<
FACILITY
>
check if a character is available from the keyboard to be received - unlike
KEY?
it will not discard non-visible codes.
reference: p4_ekey_question in ../src/facility.c:0089, export CO EKEY?