如何在 Metapost 中使用 verbatim

Question

我正在尝试使用 Metapost 中的 minipage 逐字逐句地输入文本。它似乎在 Metapost 之外有效，但在里面无效。任何帮助都将不胜感激。

\documentclass{article}
\usepackage{luamplib}
\usepackage{fancyvrb}
\begin{document}

\begin{minipage}[t]{20em}
    \begin{Verbatim}
    sample text 1
    sample text 2   
    sample text 3
    \end{Verbatim}
\end{minipage}


\begin{mplibcode}
beginfig(1); 
draw (0,0)--(10,-10) ; 
label(btex
    \begin{minipage}[t]{20em}
        \begin{Verbatim}
        sample text 1
        sample text 2   
        sample text 3
        \end{Verbatim}
    \end{minipage}
etex,(30,-30));
endfig; 
\end{mplibcode}

\end{document}

------------------------- the 2nd question ------------------------------
to meet the policy of site,  my previous message was relocated. 

Thanks Henri

I tried to use \verbbox as below without success yet. 

\documentclass{article}
\usepackage{luamplib}
\usepackage{fancyvrb}
\newbox\verbbox
\begin{document}

\setbox\verbbox=\vbox{\hsize=15cm
\begin{Verbatim}
    sample text 1
    sample text 2 sample text 21
    sample text 3 sample text 31  sample text 32 
\end{Verbatim}
}
before verbbox  \\
\box\verbbox  \\
after verbbox 

\begin{mplibcode}
    beginfig(1); 
    label(btex ~ etex, origin) ;    
    label(btex
    \begin{minipage}[t]{16cm}
    \box\verbbox
    \end{minipage}
    etex, (15,-15)) ; 

    drawarrow (0,0)--(30,-30) ; 
    endfig ; 
\end{mplibcode}

\end{document}

Answer 1

您可以使用SaveVerbatim：

\documentclass{article}
\usepackage{luamplib}
\usepackage{fancyvrb}
\begin{document}

\begin{SaveVerbatim}{exampleA}
sample text 1
sample text 2   
sample text 3
\end{SaveVerbatim}
\begin{mplibcode}
beginfig(1); 
draw (0,0)--(10,-10) ; 
label(btex \BUseVerbatim{exampleA} etex,(30,-30));
endfig; 
\end{mplibcode}

\end{document}

您可以拥有SaveVerbatim任意数量的不同名称。\BUseVerbatim您甚至不需要猜测宽度。