*
* An ASCII switch is a boolean value stored as a single-byte. The byte can
* contain only the values "Y" or "N". It may be useful to declare level 88
* clauses for "Y" and "N" after the item declared as an ASCII switch.
*
DEF ASCII-SWITCH TYPE CHARACTER 1
MUST BE "Y", "N"
DISPLAY "A1"
HEADING "Y\N".