The width of an output line is defined by default to be 75. You can modify this by passing the
desired width to the function line-width.
(pp-file SOURCE:string DESTINATION:string):undefined                                                                                                                      expr
This function is used to prettyprint the contents of one file into another.
There must be two arguments, the first is a string representing the source
file name, the second is a string representing the destination file name. The
first argument to top level applications of de, df, dm, ds, dn, defmethod,
defflavor, and defmacro is printed once the form has been written to the file.
 
(pp-object E:form): undefined                                                                                   fexpr
This function will prettyprint the PSL data object E. Pp-object will also
accept  two  optional  arguments.  The  output  may  be  directed  to  a  file  by
including a string which represents the file name. Indentation is specified
with  an  integer.  Both  of  these  optional  arguments  must  be  preceded  by
special identifiers, :indent for indentation, :sink for redirection of output.