Path: utzoo!attcan!uunet!mcsun!unido!pbinfo!expbinfo!elmar
From: elmar@expbinfo.uni-paderborn.de (Elmar Schalueck)
Newsgroups: comp.text.tex
Subject: Strange result in macros
Message-ID: <1991Jan24.095405.8868@uni-paderborn.de>
Date: 24 Jan 91 09:54:05 GMT
Sender: news@uni-paderborn.de (News Uni-Paderborn)
Reply-To: elmar@pbinfo.UUCP (Elmar Schalueck)
Organization: Uni-GH Paderborn, Germany
Lines: 19
Nntp-Posting-Host: expbinfo

%  I discovered a beautiful difference in macros depending
%  on the position of the left braces after the macroname.
%  Is this a desired effect and how can I make use of it to apply
%  macros to whole words that are not surrounded by braces?
%
%  Greetings and have some fun with the example below
%
%  Elmar Schal\"{u}ck           elmar@uni-paderborn.de
%
%
\documentstyle{article}
\begin{document}
\long\def\foo#1
{Hurrah #1 Hurrah}
\long\def\gnat#1{Yippee #1 Yippee}
Now I test \foo{Why} and \gnat{Why not?} and everything's ok.

But watch out for the difference to \foo{Me}-too and \gnat{You}-never.
\end{document}