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From: pjnesser@mbunix.mitre.org (Nesser)
Newsgroups: comp.lang.postscript
Subject: Re: How can I tell if a file is "postscript"
Message-ID: <PJNESSER.91Mar13140500@mbunix.mitre.org>
Date: 13 Mar 91 22:05:00 GMT
References: <7647@uceng.UC.EDU>
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In-Reply-To: rmontjoy@uceng.UC.EDU's message of 3 Mar 91 22:26:25 GMT
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   Does anyone have a program that can tell if a file is not postscript
   and put it in postscript(assuming the original file was ascii). If not
   is just checking for %! good enough to ensure a postscript file?

   thanks. 

   Rob Montjoy                   		- Rob.Montjoy@UC.Edu
   Computer Engineer    	      		- montjoy@ucbeh.BITNET
   University of Cincinnati      		- montjoy@babbage.ece.uc.edu
   Electrical and Computer Enginering	- uunet!uceng!rmontjoy

I have just plowed through about 30 messages about the PS format etc, yet
no one has attempted to answer the question or at least posted anything.
So here is a bit of an answer, it may not be completely correct but it
works for me (so far).  

To translate some text to ps there are a good number of PD things that you
can get from uunet.uu.net in the comp.sources.{misc,unix} archives or you
can buy the transcript software(I don't remember who makes it off hand but
I could dig it up).  Here is a bit of a shell hack which has always been
able to distinguish(sp?) .ps files for me:


set PS = `grep -n "%\\!" $k | awk '{print substr($1,1,4)}'`

if ($PS =~ "1:%\!") then
        set POSTSCRIPT = "yes"
else
        set POSTSCRIPT = "no"
endif


and if anyone see something that will cause it to break please let me know.


--->  Phil


--
---> 	Philip J. Nesser
	Member of the Technical Staff
	The MITRE Corporation

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