Same content for exercise and solution

[joneppie]

I am looking for a solution to use the content of an exercise directly in the solution. With the multiplechoice example from the package Task, the following should be possible:

\begin{mcExercise}
    \begin{multiplechoice}
        \choice First choice
        \choice Second choice
        \choice[\correct] Third choice
    \end{multiplechoice}
\end{mcExercise}

instead of:

\begin{exercise}
    \begin{multiplechoice}
        \choice First choice
        \choice Second choice
        \choice[\correct] Third choice
    \end{multiplechoice}
\end{exercise}
\begin{solution}
    \begin{multiplechoice}
        \choice First choice
        \choice Second choice
        \choice[\correct] Third choice
    \end{multiplechoice}
\end{solution}

[cgnieder]

This seems like a good idea. I will try to come up with a solution. This shouldn't be too complicated I hope! :)

[cgnieder]

I added a property solution to exercises:

\documentclass{article}
\usepackage{xsim}
\xsimsetup{print-solutions/headings=false}

\begin{document}

\begin{exercise}[solution]
  1: exercise
\end{exercise}
\begin{exercise}
  2: exercise
\end{exercise}
\begin{solution}
  2: solution
\end{solution}

\printsolutions

\end{document}

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This will be part of the next release to CTAN and will need some testing!