The QUOTE option specifies an alternate symbol that can be used as the quote character.
.-"----. >>-QUOTE--(--'--+-char-+--'--)---------------------------------><
The IBM-supplied default code point for the QUOTE symbol is '"'.
You cannot specify any of the alphabetic characters, digits, and special characters defined in the PL/I Language Reference, except for the standard QUOTE symbol (").
You must specify a valid character.
The QUOTE option is ignored if the GRAPHIC option is also specified.