Path: utzoo!attcan!uunet!lll-winken!lll-tis!mordor!joyce!ames!pasteur!agate!violet.berkeley.edu!ilan343
From: ilan343@violet.berkeley.edu
Newsgroups: comp.text
Subject: Re: troff cross referencer
Keywords: cross reference troff
Message-ID: <14193@agate.BERKELEY.EDU>
Date: 12 Sep 88 22:06:30 GMT
References: <6399@orstcs.CS.ORST.EDU>
Sender: usenet@agate.BERKELEY.EDU
Organization: University of California, Berkeley
Lines: 11

In article <6399@orstcs.CS.ORST.EDU> budd@mist.cs.orst.edu (Tim Budd) writes:
>Here is an idea that is so simple I wonder it isn't more widely used.
>(so simple in fact I'm sure I'm not the first one to discover it).
>
>We can use the .sy command in ditroff, and a trivial shell script,
>to make an arbitrary cross referencer.  This cross referencer can be used in 
>a pipe, just like tbl, eqn, pic, bib and the rest.  The system needs only
>two strings and three macros.
>
Is the .sy command implemented in all versions of ditroff?

It does't seem to work with the version I use in this BSD machine.