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From: kesich@acf3.NYU.EDU (John Kesich)
Newsgroups: comp.text.tex
Subject: Re: Files of same TeX codes produce slightly different outputs
Message-ID: <2540002@acf3.NYU.EDU>
Date: 18 Dec 90 14:17:00 GMT
References: <51728@eerie.acsu.Buffalo.EDU>
Sender: news@cmcl2.NYU.EDU
Organization: New York University
Lines: 29

In TeX, end-of-line, spaces and tabs all count as white-space,
thus the two files you posted are not the same.

Perhaps the following will help illustrate what is different:

% file 1a - same as original file 2
\font\cs=cmr10 \cs
\magnification=\magstep1
\hbox{
\vrule
{\vbox{\hrule
{\noindent Warning: Do not use 
}%
\hrule
}%
}%
\vrule
}
\end

% file 2a - same as original file 1
\font\cs=cmr10 \cs
\magnification=\magstep1
\hbox{
\vrule
{\vbox{\hrule
{\noindent Warning: Do not use 
} \hrule} } \vrule}
\end