Re: defeating save/restore (summary)

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#5032

From: Frank Jensen
Date: Thu, 14 Mar 1991 20:13

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In article <39120@netnews.upenn.edu> jeffe@eniac.seas.upenn.edu (George Jefferson ) writes:

   ...

   Many people sugested leaving my value on the stack.
    I suppose my question was not as well posed as it could have been,
    but there is a _lot_ of code between the 'restore' and the place where
    I am allowed to insert my code.  I would have to be very careful with 
    the stack indeed :-)

I don't see the problem.  Suppose you have a special dictionary you
use to store your values, call it `mydict'.  Then you can use this
dictionary at will, provided you redefine `restore':

/-restore /restore load def		% save old `restore' operator

/restore
      { mydict {} forall mydict length	% load values onto the stack
	dup 2 mul 2 add -1 roll		% get restore object
	-restore			% do the restore
	mydict begin {def} repeat end	% save the values
      } def


   --
   -george            george@mech.seas.upenn.edu

--
Frank Jensen,   fj@iesd.auc.dk
Department of Mathematics and Computer Science
Aalborg University
DENMARK

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Path: arc1-ca.pugleaf.net!utzoo!news-server.csri.toronto.edu!cs.utexas.edu!hellgate.utah.edu!caen!zaphod.mps.ohio-state.edu!rpi!uupsi!sunic!dkuug!iesd!iesd.auc.dk!fj
From: fj@iesd.auc.dk (Frank Jensen)
Newsgroups: comp.lang.postscript
Subject: Re: defeating save/restore (summary)
Message-ID: <FJ.91Mar14201308@indigo.iesd.auc.dk>
Date: 14 Mar 91 20:13:08 GMT
References: <38972@netnews.upenn.edu> <1909@chinacat.Unicom.COM>
 <1991Mar11.145130.12027@cl.cam.ac.uk> <39120@netnews.upenn.edu>
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In-reply-to: jeffe@eniac.seas.upenn.edu's message of 14 Mar 91 02:01:45 GMT

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