%% 
%%  Ein Beispiel der DANTE-Edition
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%%  2. Auflage
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%%  Beispiel 17-05-6 auf Seite 850.
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%%  Copyright (C) 2016 Herbert 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.
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% Show page(s) 1
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\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{352.81416pt}
\setlength\parindent{0pt}
\usepackage[scaled=0.82]{beramono}
%StartShownPreambleCommands
\usepackage{xparse}
\NewDocumentCommand\TYPu{ u{f} }{\textbf{#1}}% f wird "verschluckt werden"
\NewDocumentCommand\TYPuu{ u{:->} u{!}}{\noindent Typ: \texttt{#1}\\
  Definition: \texttt{\small#2}}
%StopShownPreambleCommands
\begin{document}
\begin{enumerate}
\item Die \LaTeX{} \TYPu Referenz
\item \meaning\today
\item \expandafter\TYPuu\meaning\today!
\end{enumerate}
\end{document}