Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!tank!nucsrl!gore
From: gore@eecs.nwu.edu (Jacob Gore)
Newsgroups: comp.sys.next
Subject: Re: Re: Postscript Previewing?
Message-ID: <12670014@eecs.nwu.edu>
Date: 10 Feb 89 01:39:22 GMT
References: <oXvpaAy00jdX0xKkUm@cs.cmu.edu>
Organization: Northwestern U, Evanston IL, USA
Lines: 23

/ comp.sys.next / rfr@cs.cmu.edu (Rick Rashid) / Feb  7, 1989 /
>...to preview multipage documents.
>In the sources to Yap ... file called 'controller.pswm'.  In the method
>'- executeRequest:(id)sender' there is a line which looks like this:
>
>  "/showpage {} def  /yaptime usertime def \n",
>
>You should change that line to be:
>
>    "/showpage {{buttondown {erasepage exit} if} loop} def /yaptime
>usertime def\n",

Nice.  You probably want to define 'page' the same way.

The problem is that everybody and their grandmother redefines 'page' and
'showpage'.  If the document being previewed does that, this fix gets
overruled. 

Any ideas?  Maybe redefine 'def' so that it refuses to define 'page' or
'showpage'?

Jacob Gore				Gore@EECS.NWU.Edu
Northwestern Univ., EECS Dept.		{oddjob,gargoyle,att}!nucsrl!gore