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From: ks@karikukko.tut.fi (Syst{ Kari)
Newsgroups: comp.windows.news
Subject: Re: How to find out if a file exists
Message-ID: <7505@etana.tut.fi>
Date: 7 Jun 89 12:52:39 GMT
References: <7506@hoptoad.uucp> <8087@batcomputer.tn.cornell.edu> <HH.89Jun3122644@hemppo.tut.fi> <8130@batcomputer.tn.cornell.edu>
Sender: News@tut.fi
Reply-To: ks@karikukko.UUCP (Syst{ Kari)
Organization: Tampere University of Technology, Finland
Lines: 23

In article <8130@batcomputer.tn.cornell.edu> prove@batcomputer.tn.cornell.edu (Roger Ove) writes:
>    I tried this and it fails when the file doesn't exist, it bombs
>with the error "undefinedfilename" and terminates the process.  Works
>fine if the file is there, hardly a satisfactory substitute.  It
Well, I tried Heikki's idea and it worked just fine !
This is the pretty-printed version of the excluded fileexists:

/fileexists {
    {(r) file} stopped {
	pop pop false
    } {
	closefile true
    }
    ifelse
} def

PS.  We are running NeWS 1.1.


Kari Systa      ks@tut.fi (ks@tut.UUCP, ..!mcvax!tut!ks, ks@fintut.bitnet)
Tampere Univ. Technology              Telefax:                 Phone
Software System Laboratory         +358 31 162913        work: +358 31 162585
Po. Box. 527, SF-33101 Tampere, Finland                  home: +358 31 177412