0 0 1 {} for

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Article #4190

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#4190

From: George Jefferson
Date: Fri, 07 Dec 1990 16:30

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I just discovered this 'illegal' zero increment for loop in someone elses Ps file.

The interesting thing is that the loop is simply ignored by
our LaserWriter and our HP111/PS. (no errors reported and the file prints fine)

I discovered it because it bombs X11/NeWS Pageview.

My question is, is this construction simply undefined (therefore interpreter dependant..)
or is it _supposed_ to be ignored?

By the way, Pageview also chokes on    1 0 1 { } for 
which I think should be a well defined 'null' statement


--
-george   @sol1.lrsm.upenn.edu

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Path: arc1-ca.pugleaf.net!utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!usc!rutgers!netnews.upenn.edu!eniac.seas.upenn.edu!jeffe
From: jeffe@eniac.seas.upenn.edu (George Jefferson )
Newsgroups: comp.lang.postscript
Subject: 0 0 1 {} for
Summary: what _should_ this non-sense loop do?
Message-ID: <34305@netnews.upenn.edu>
Date: 7 Dec 90 16:30:51 GMT
References: <7699@hub.ucsb.edu> <371@rusux1.rus.uni-stuttgart.de>
Sender: news@netnews.upenn.edu
Reply-To: jeffe@eniac.seas.upenn.edu (George Jefferson )
Organization: University of Pennsylvania
Lines: 16

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