Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!rice!uw-beaver!uw-entropy!peter
From: peter@uw-entropy.ms.washington.edu (Peter Guttorp)
Newsgroups: comp.text
Subject: eroff problem
Keywords: PostScript
Message-ID: <2382@uw-entropy.ms.washington.edu>
Date: 15 Nov 89 22:55:56 GMT
Distribution: na
Organization: UW Math Scienes, Seattle
Lines: 20

When processing some mathematical text I repeatedly run into the
following problem. A PostScript macro /Csr is defined by:

	/Csr{ currentfont
	 /dx xsiz pt 0.05 mul def
	 /dy ysiz pt 0.15 mul neg def
	 dx dy rmoveto
	 f.S [ xsiz pt 0 0 ysiz 1.03 mul pt 0 0 ]makefont setfont
	 (\326)s
	 dx neg dy neg rmoveto
	 setfont
	}bind def

This is immediately called, but f.S is not defined until later on the
page. Because of the bind (I guess), I get an error from the printer
saying that f.S is undefined. I am using pic -D|tbl -D|eqn -Tpsc|eroff -ms,
using eroff release 2.2. 

Can anyone explain what is going on, and (even better) how to keep eroff
from producing this error?