🚀 go-pugleaf

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	"The correct way ... would be to provide a defined and
	acceptable operator that an application could use to indicate
	that "this is the start of a new job" with the implicit effect
	of putting a printer in a sane state (i.e.  equivalent to after
	receiving ^D or EOF)."

The reason this isn't sufficient is that the PostScript lexer isn't
necessarily the agent reading from the job stream.  The previous job
might be stuck in a "currentfile readline" loop.  Or the previous job
might have encountered an error, and the system is "flushing until
end-of-file".

Ideally, PostScript jobs are transmitted through media which provide
for out-of-band notification of control information such as
end-of-file.  This is the case for AppleTalk and TCP/IP (and note that
you'd better not send a control-D through these networks!), but not for
serial and parallel, so these latter must use an in-band EOF indicator
which is not part of the language.

  -=- Andrew Klossner  (andrew@frip.wv.tek.com)
                       (uunet!tektronix!frip.WV.TEK!andrew)