%% 
%%  A DANTE-Edition example
%% 
%%  Beispiel 04-03-1 auf Seite 142.
%% 
%%  Copyright (C) 2010 H. Voss
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 

%%Run also: >>  << 
% Show page(s) 1

\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{218.59192pt}
\setlength\parindent{0pt}

\begin{filecontents}{DateiDemo.tex}
bar
\end{filecontents}
\usepackage{verbatim}
% Ende Praeambel

\begin{document}
foo \input{DateiDemo.tex} baz

\small
\verbatiminput{DateiDemo.tex}
\end{document}