Paragraph indenting in an mdframed environment

Question

I'm using the mdframed package and I've defined my own environment. But it seems that paragraph indentation doesn't work inside a mdframed environment.

I've used the settings option of mdframed to set parindent inside but it doesn't seem to work. However when I explicitly add \setlength{\parindent}{\defparindent}, which is a rather ugly solution, it indents the first line too a little bit. So either way this whole thing is not okay.

How can I tell my singleframed environment to set \parindent inside itself?

\documentclass{article}

%\usepackage{lipsum}

\usepackage[framemethod=tikz,%
innerleftmargin=\parindent,%
skipabove=0.6\baselineskip,%
skipbelow=0.6\baselineskip,%
innertopmargin=0.4\baselineskip,%
innerbottommargin=0.4\baselineskip]{mdframed}

\newlength{\defparindent}
\setlength{\defparindent}{\parindent}

% The singleframed environment
\newmdenv[linewidth=0.4pt,%
linecolor=black,%
backgroundcolor=white,%
settings={\setlength{\parindent}{\defparindent}}]{singleframed}

\begin{document}

\begin{singleframed}
qwerty

qwerty
\end{singleframed}

\begin{singleframed}
\setlength{\parindent}{\defparindent}
qwerty

qwerty
\end{singleframed}

\end{document}

Answer 1

I wasn't able to use the settings provided by mdframed. So I just defined a new enviroment. I think for changing it in mdframed you would need to patch package internals. Anyway this Solution has no problem with additional spaces.

\documentclass{article}

%\usepackage{lipsum}

\usepackage[framemethod=tikz,%
innerleftmargin=\parindent,%
skipabove=0.6\baselineskip,%
skipbelow=0.6\baselineskip,%
innertopmargin=0.4\baselineskip,%
innerbottommargin=0.4\baselineskip]{mdframed}

\newlength{\defparindent}
\setlength{\defparindent}{\parindent}

% The singleframed environment
\newmdenv[linewidth=0.4pt,%
linecolor=black,%
backgroundcolor=white]{singleframed}

\newenvironment*{singleframedindent}{\begin{singleframed}\setlength{\parindent}{\defparindent}\ignorespaces}{\end{singleframed}}
\begin{document}



    \begin{singleframedindent}
    qwerty\\
    qwerty

    qwerty
    \end{singleframedindent}


\end{document}

Result is:

You wouldn't have any problem with the space in your example if you would do:

\begin{singleframed}
\setlength{\parindent}{\defparindent}%
qwerty

qwerty
\end{singleframed}

The new line after setlength is the cause for the additional space. By using the comment tag you don't have any problems.

Answer 2

With the current version on github (upload to CTAN today) you will get the following output of your example: