shdoc and KOMA-Script

Question

Why does the following example work with report, but not with scrreprt:

\documentclass{scrreprt}
\usepackage{shdoc}

\begin{document}
    \begin{sh}
        \begin{shbox}
            \shline{}{Test}
        \end{shbox}
    \end{sh}
\end{document}

Fun fact: I have a class based on scrreprt which compiles this example (really works), but there is a printed out "none" before the box.

Answer 1

This is a bug in the package shdoc. It uses

\ifthenelse{\f@size<6}{%

This is an integer comparison but \f@size isn't an integer always. You get the same error with the standard classes, if you use option 11pt:

\documentclass[11pt]{report}
\usepackage{shdoc}

\begin{document}
    \begin{sh}
        \begin{shbox}
            \shline{}{Test}
        \end{shbox}
    \end{sh}
\end{document}

There are other comparisons like this. And also there are comparisons like

\ifnum\value{shlinenumber}<10%

which are at least dangerous. Here the scanning of number 10 should be terminated, e.g. using \relax.

There are also some missing % after { and some not needed % after macros at line ends I do not like. But maybe they aren't problems. I even found an empty line in \shread. But I'm not sure whether or not this is an intended paragraph or not.

You should report the bugs.