STACK

$X\ --$

DESCRIPTION

The operator pops an object from the operand stack, produces a text representation of that object,
and writes the result to the standard output, followed by a new line.
This operator attempts to produce a result that resembles the red book syntax for creating the object.
But:

Core code operators are printed with their names.
Nested arrays, dictionaries and stacks are only printed to a nesting level of 2.

It differs from the red book operator:

it prints arrays and dictionaries with their content
generates "mark" instead of "-mark-"

ORIGIN

Core code registered in systemdict.