Variable CUSTOM:*PRINT-CLOSURE*. An additional variable CUSTOM:*PRINT-CLOSURE* controls whether compiled and interpreted functions (closures) are output in detailed form. If CUSTOM:*PRINT-CLOSURE* is non-NIL, compiled closures are output in #Y syntax which the reader understands. CUSTOM:*PRINT-CLOSURE* is initially set to NIL.

Variable CUSTOM:*PRINT-RPARS*. An additional variable CUSTOM:*PRINT-RPARS* controls the output of the right (closing) parentheses. If CUSTOM:*PRINT-RPARS* is non-NIL, closing parentheses which do not fit onto the same line as the the corresponding opening parenthesis are output just below their corresponding opening parenthesis, in the same column. CUSTOM:*PRINT-RPARS* is initially set to NIL.

Variable CUSTOM:*PRINT-INDENT-LISTS*. An additional variable CUSTOM:*PRINT-INDENT-LISTS* controls the indentation of lists that span more than one line. It specifies by how many characters items within the list will be indented relative to the beginning of the list. CUSTOM:*PRINT-INDENT-LISTS* is initially set to 1.

Variable CUSTOM:*PPRINT-FIRST-NEWLINE*. An additional variable CUSTOM:*PPRINT-FIRST-NEWLINE* controls pretty-printing of multi-line objects. When CUSTOM:*PPRINT-FIRST-NEWLINE* is non-NIL, and the current line already has some characters on it, and the next object will be printed on several lines, and it does not start with a #\Newline, then a #\Newline is printed before the object. CUSTOM:*PPRINT-FIRST-NEWLINE* has no effect if *PRINT-PRETTY* is NIL. CUSTOM:*PPRINT-FIRST-NEWLINE* is initially set to T.