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%%  Ein Beispiel der DANTE-Edition
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%%  2. Auflage
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%%  Beispiel 03-07-12 auf Seite 83.
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%%  Copyright (C) 2016 Herbert Voss
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%%  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[]{exaarticle2}
\pagestyle{empty}
\setlength\textwidth{352.81416pt}
\usepackage{fontspec}
\setmainfont{Linux Libertine O}
\setlength{\parindent}{0em}
%StartShownPreambleCommands
\usepackage[french]{babel}
\usepackage[autostyle,german=guillemets,french=guillemets]{csquotes}
\DeclareQuoteStyle{francaise}
  {\guillemotleft}{\guillemotright}
  {\guilsinglleft}{\guilsinglright}
%StopShownPreambleCommands
\begin{document}
Il demande: \enquote{Avez-vu lu de Grass' \enquote{Le Tambour}?}\par
\setquotestyle{francaise}
Il demande: \enquote{Avez-vu lu de Grass' \enquote{Le Tambour}?}
Il demande: «Avez-vu lu de Grass' «Le Tambour»?»
\end{document}