Comment avoir des guillemets réalistes dans du code en verbatim ?#

La fonte cmtt a des guillemets « arrondis », qui sont jolis, mais ne correspondent pas vraiment à ce que l’on voit dans un xterm ou un éditeur de texte :

Exemple compilable et éditable
\documentclass{article}
  \usepackage[T1]{fontenc}
  \usepackage{lmodern}
  \pagestyle{empty}
\begin{document}
\begin{verbatim}
`J'ai une touche', dit le clavier.
\end{verbatim}
\end{document}
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation... . . .

L’apparence de ces guillemets est importante pour la compréhension des exemples de code, par exemple dans les livres didactiques. L’extension upquote modifie le comportement de l’environnement verbatim et de la commande \verb pour que leur sortie soit une représentation plus fidèle de ce que l’utilisateur doit saisir :

Exemple compilable et éditable
\documentclass{article}
  \usepackage[T1]{fontenc}
  \usepackage{lmodern}
  \usepackage{upquote}
  \pagestyle{empty}
\begin{document}
\begin{verbatim}
`J'ai une touche', dit le clavier.
\end{verbatim}
\end{document}
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation... . . .

1.  Avec l’extention « listings »#

Le package upquote fonctionne également si vous utilisez listings pour formatter votre code :

Exemple compilable et éditable
\documentclass{article}
  \usepackage[T1]{fontenc}
  \usepackage{lmodern}
  \usepackage{listings}
  \usepackage{upquote}
  \pagestyle{empty}
\begin{document}
\begin{lstlisting}
`J'ai une touche', dit le clavier.
\end{lstlisting}
\end{document}
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation... . . .

Sources