Controls the format in which arrays are printed.
If it is false, the contents of arrays other than strings
are never printed. Instead, arrays are printed in a concise form using
#<
that gives enough information for the user to be able to identify the
array, but does not include the entire array contents.
If it is true, non-string arrays are printed using
#(...)
, #*
, or #nA
syntax.
The implementation.