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Well, the title says it all. I have code scripts that span over multiple pages. Is it possible to display a dashed line at the bottom and/or top of the page in which the listings environment experience a page break, and keep the solid line at the very top and very bottom of the environment?

A screen dump illustrating my question is given below. I would like to add dashed lines where the listings environment break.

enter image description here

I use mcode in combination with the listings enivorment, providing a set of lstset parameters. The following MWE illustrates where I would prefer to have horizontal, dashed lines, avoiding that the lstlistings environment just breaks to white. 

\documentclass{article}
\usepackage{mcode, listings}
\definecolor{cornsilk}{RGB}{255,248,220}
\begin{document}
\section{Section Something}

The following code is just a really long list of comments, really. 

\begin{lstlisting}
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % It would be nice with a horisontal dashed line below me. 
    % Another dashed above me, too.
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
\end{lstlisting}
\end{document}
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  • 1
    It would be nice if you could provide a MWE of what you have got. – user10274 May 14 '13 at 12:12
  • Normally I would close this question but the bounty avoids it. Your question is similar to do it for me because you didn't provide a mwe. Do you use any related packages? – Marco Daniel May 17 '13 at 11:35
  • @MarcoDaniel Affirmative! Updated. – Holene May 17 '13 at 11:54
  • You might be interested in the matlab-prettifier package; see this answer. – jub0bs Apr 28 '14 at 15:55
4
+50

To draw such a frame you should use an other package which allows such modifications. The default packages are mdframed or tcolorbox. In the example below I provided a solution using tcolorbox whereby a new listings environment lstmcode is defined. Please note that I am using the version 2.22 for the example below.

enter image description here enter image description here

\documentclass{article}
\usepackage{mcode, listings}
\lstdefinestyle{mymcode}{%
  basicstyle=\fontfamily{pcr}\fontseries{m}\selectfont\footnotesize,
  numbers=left,
  numberstyle=\color{gray}\fontfamily{pcr}\fontseries{m}\selectfont\tiny,
  stepnumber=1,
  numbersep=5pt,
  showspaces=false,
  showstringspaces=false,
  showtabs=false,
  tabsize=2,
  breaklines=true,
  breakatwhitespace=false,
  belowskip=0pt,
 aboveskip=0pt,
}

\definecolor{cornsilk}{RGB}{255,248,220}

\usepackage[breakable,listings,skins,hooks]{tcolorbox}
\newtcblisting{lstmcode}{%
 breakable,
 colback=cornsilk,
 listing options={style=mymcode},
 listing only,
 enhanced,
 overlay first app={%
   \draw[dashed,line width=1pt,xshift=1pt] (frame.south east) -- (frame.south west);%
  },
 overlay middle app={%
   \draw[dashed,line width=1pt,xshift=-1pt] (frame.north east) -- (frame.north west);
   \draw[dashed,line width=1pt,xshift=1pt] (frame.south east) -- (frame.south west);%
  },
 overlay last app={%
   \draw[dashed,line width=1pt,xshift=-1pt] (frame.north east) -- (frame.north west);
  },
}
\begin{document}
\section{Section Something}

The following code is just a really long list of comments, really. 

\begin{lstmcode}
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % It would be nice with a horisontal dashed line below me. 
    % Another dashed above me, too.
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
\end{lstmcode}

\end{document}

Here an other approach using mdframed. The output is equal:

\documentclass{article}
\usepackage[framemethod=tikz]{mdframed}
\usepackage{mcode, listings}
\lstdefinestyle{mymcode}{%
  basicstyle=\fontfamily{pcr}\fontseries{m}\selectfont\footnotesize,
  numbers=left,
  numberstyle=\color{gray}\fontfamily{pcr}\fontseries{m}\selectfont\tiny,
  stepnumber=1,
  numbersep=5pt,
  showspaces=false,
  showstringspaces=false,
  showtabs=false,
  tabsize=2,
  breaklines=true,
  breakatwhitespace=false,
  belowskip=0pt,
 aboveskip=0pt,
}

\definecolor{cornsilk}{RGB}{255,248,220}



\mdfdefinestyle{mcode}{%
 roundcorner=5pt,
 skipabove=10pt,skipbelow=10pt,
 middlelinewidth=1pt,
 backgroundcolor=cornsilk,
 firstextra={\draw[dashed,line width=1pt,xshift=1pt] (O) -- (P|-O);},
 secondextra={\draw[dashed,line width=1pt,xshift=-1pt] (O|-P) -- (P);},
 middleextra={\draw[dashed,line width=1pt,xshift=1pt] (O) -- (P|-O);\draw[dashed,line width=1pt,xshift=-1pt] (O|-P) -- (P);},
}
\lstnewenvironment{lstmcode}
 {\lstset{style=mymcode}}{}
\surroundwithmdframed[style=mcode]{lstmcode}
\begin{document}
\section{Section Something}

The following code is just a really long list of comments, really. 

\begin{lstmcode}
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % It would be nice with a horisontal dashed line below me. 
    % Another dashed above me, too.
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
    % Matlab code 
\end{lstmcode}

\end{document}
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