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From: kirkaas@ewa.cs.ucla.edu (paul kirkaas)
Newsgroups: comp.text.tex
Subject: #ifdef equivalent of selective inclusion for TeX/LaTeX???
Message-ID: <40303@shemp.CS.UCLA.EDU>
Date: 18 Oct 90 03:33:45 GMT
References: <1990Oct18.021309.22918@cs.umn.edu>
Sender: news@CS.UCLA.EDU
Organization: UCLA Computer Science Department
Lines: 26


I wonder if there is an equivalent to C's "#ifdef" for TeX ---
that is, if there is something like:

\ifdef{adef1}
 I want to see the first line of text included.
\fi
\ifdef{adef2}
 I want to see the second line of text included.
\fi

The point is that rather than defining adef1 to some value and
testing for it, I can still run the source through TeX EVEN IF
adef1 is NOWHERE DEFINED.  I want that because I want to \include
files from various source documents, which may or may not
know all the possible \def's.

Thanks for any help.

Paul


--
--
Paul Kirkaas
kirkaas@cs.ucla.edu