How to add verbatim in a float figure on right page?

Question

I've discovered this post to define the command addfig{} to put figures on the right page.

My problem is that it doesn't work if the figure is a verbatim element.

Here is a minimal not working example :

\documentclass[a4paper,twoside,12pt]{article}

\usepackage[francais]{babel} 
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[labelsep=endash]{caption}

\usepackage{afterpage}

% The addfig function definition
\makeatletter
\newcommand\@addfig{\relax}
\newcommand\addfig[1]{\global\long\def\@addfig{#1}}
\newcommand\@putfig{\@addfig\addfig{\relax}}
\newcommand\blankpage{%
\null
\vfill
\@putfig%
\vfill
\thispagestyle{empty}%
\clearpage%
\addtocounter{page}{-1}
\afterpage{\blankpage}}
\makeatother

\begin{document}
\afterpage{\blankpage}

\addfig{ % The example work without it
\begin{figure}
        \begin{verbatim}
                Something
        \end{verbatim}
        \caption{content of the caption}
\end{figure}
}

First Page

\end{document}

Is there a way to redefine the command to accept verbatim?

Answer 1

The verbatimbox package can be helpful here. It allows you to stuff verbatim into a box. In this case, I stuff it before the invocation of \addfig into a box named \myafterfig. Then I can recall that box as part of the figure content. Because it is a box, I can center it, as well.

\documentclass[a4paper,twoside,12pt]{article}

%\usepackage[francais]{babel} 
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[labelsep=endash]{caption}
\usepackage{verbatimbox}
\usepackage{afterpage}

% The addfig function definition
\makeatletter
\newcommand\@addfig{\relax}
\newcommand\addfig[1]{\global\long\def\@addfig{#1}}
\newcommand\@putfig{\@addfig\addfig{\relax}}
\newcommand\blankpage{%
\null
\vfill
\@putfig%
\vfill
\thispagestyle{empty}%
\clearpage%
\addtocounter{page}{-1}
\afterpage{\blankpage}}
\makeatother

\begin{document}
\afterpage{\blankpage}

\begin{myverbbox}{\myafterfig}
Something \verbatim $%^&
ANd then &*)$% some more
\end{myverbbox}
\addfig{ % The example work without it
\begin{figure}
\centering
\myafterfig
\caption{content of the caption}
\end{figure}
}

First Page

\end{document}