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(with-... macros -- status?

I observe that MCL 2.0.1 contains a number of useful quickdraw-related macros 
that guarantee to restore some aspect of state after manipulation within the 
"body" of the macro.  These include things like (with-focused-view ...), etc.

The following such useful macros seem to be exported to CL-USER and are used in
a lot of example and contributed code, but do not appear in the documentation:
	(with-pen-saved ...)
	(with-clip-rect ...)
	(with-font-codes ...)
What is their status?  Are they intended to survive into the indefinite future,
or should one not rely on them?

--Pete Szolovits