Section open right in scrbook

Question

Using scrbook, I would like sections to open on a new odd page, like chapters do. How can I achieve that?

Answer 1

Just add \cleardoublepage to the action of \section.

No packages:

\long\expandafter\def\expandafter\section\expandafter{%
  \expandafter\cleardoublepage\section}

Shorter:

\usepackage{etoolbox}
\preto\section{\cleardoublepage}

Note: the \section command has (in the standard classes and also in the KoMa-script classes) a definition without arguments. The arguments are absorbed by other macros called by it.

If you want to respect the openany or openright option, then \cleardoublepage is not the correct command. Thus

\usepackage{etoolbox}
\makeatletter
\preto\section{\if@openright\cleardoublepage\else\clearpage\fi}
\makeatother

should be used.

The "no package" version of this one might be

\makeatletter
\toks0={\if@openright\cleardoublepage\else\clearpage\fi}
\toks2=\expandafter{\section}
\long\edef\section{\the\toks0 \the\toks2 }
\makeatother

Answer 2

You can redefine \section to add \cleardoublepage or \clearpage (depending on whether openright or openany is active) so as to behave as \chapter:

\documentclass{scrbook}
\usepackage{lipsum}

\makeatletter
\renewcommand\section{%
\if@openright\cleardoublepage\else\clearpage\fi
\@startsection{section}{1}{\z@}%
  {-3.5ex \@plus -1ex \@minus -.2ex}%
  {2.3ex \@plus.2ex}%
  {\setlength{\parfillskip}{\z@ \@plus 1fil}%
    \raggedsection\normalfont\sectfont\nobreak\size@section\nobreak}}
\makeatother
\begin{document}

\section{Test Section One}
\lipsum[1]
\section{Test Section Two}
\lipsum[1]

\end{document}

Answer 3

\documentclass{scrbook}
\let\mySection\section
\renewcommand\section{\cleardoublepage\mySection}
\begin{document}
\chapter{foo}
text
\section{bar}
text
\end{document}