在自己的类文件中设置 koma 脚本选项

Question

我问了一个问题，关于如何使用 scrlayer-scrpage 在 koma 脚本中设置页脚，以便获得页码和文本之间的正确距离（https://tex.stackexchange.com/a/559567/18561)。如果直接加载 komascript，则解决方案有效，但如果我在单独的类文件中加载 komascript，则无法使其工作。

%    \documentclass[footlines=1]{scrbook}            
\documentclass{debug-langscibook}            

%    \usepackage{scrlayer-scrpage}
%\usepackage{scrpage2}

\usepackage{showframe}

\usepackage{lipsum}% only for dummy text

\begin{document}

\lipsum[1-20]

\end{document}

这是自定义的类：

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%     Class
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


\LoadClass[
  footlines=1,
  ]{scrbook}




%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%    Header and footer
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\usepackage{datetime}
\usepackage{scrlayer-scrpage}
%\usepackage{scrpage2}

footline=1 选项被忽略。

Answer 1

Optionfootline和 optionfootheight是包的选项typearea，由 KOMA-Script 类自动加载。但如果在 的参数中使用这些选项\LoadClass，包typearea将看不到它们。

您可以使用

\PassOptionsToPackage{footlines=1}{typearea}
\LoadClass{scrbook}
\RequirePackage{scrlayer-scrpage}

或者

\LoadClass{scrbook}
\KOMAoptions{footlines=1}
\recalctypearea
\RequirePackage{scrlayer-scrpage}