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From: lau@kings.wharton.upenn.edu (Yan K. Lau)
Newsgroups: comp.lang.postscript
Subject: Re: PostScript page counter?
Message-ID: <27630@netnews.upenn.edu>
Date: 31 Jul 90 13:57:30 GMT
References: <1990Jul26.173633.13911@msuinfo.cl.msu.edu> <1990Jul30.153325.15342@zoo.toronto.edu> <1990Jul30.181713.29483@phri.nyu.edu> <6988@helios.TAMU.EDU> <226@heaven.woodside.ca.us>
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Reply-To: lau@kings.wharton.upenn.edu (Yan K. Lau)
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In article <226@heaven.woodside.ca.us> glenn@heaven.UUCP (Glenn Reid) writes:
>
>Any volunteers to write the simple parser?  If it can recognize the
>basic syntax
>
>	/name { { stuff } }
>
>I suspect that you could find the procedure that contained "showpage"
>fairly easily.  Any volunteers?  Want to endear yourself to the
>
>(Glenn) cvn
I suspect most applications generate "well-behaved" code that a simple parser
can be used to count pages.  But users can get very devious if they write
their own code or change the code of a PS file generated by an application.
Two things that I can think of off the top of my head.  The user can replace
the showpage with a copypage and erasepage.  Also, the parser would need to
deal the the #copies.  Looks like the simple parser needs a little more work.


Yan.
   )~  Yan K. Lau    lau@kings.wharton.upenn.edu      The Wharton School
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