如何修复突出的破折号 (Koma Book Class)

Question

我在文本中有一个以长破折号结尾的行，该破折号突出到页边距。我尝试过用 \\ 截断该行；我尝试过 LuaLaTeX；我尝试过用 \sloppy{bad line ending in em dash here} 将该行括起来，用 \mbox{} 也是一样，正如这个问题所述：如何调整字体大小或字距以适应线宽？。我还尝试将长破折号改为短破折号，希望它不那么显眼。我还没有想出解决办法。只有这一行需要修复；我宁愿不应用全局修复，因为它可能会影响非常长且复杂的文本的其余部分。

这是MWE：

\documentclass[fontsize=12pt,paper=5.in:8.in,DIV=12,headings=small]{scrbook} 
\usepackage[english]{babel}
\usepackage{fontspec}
\setromanfont[Mapping=tex-text]{Alegreya}
\setsansfont[Scale=MatchLowercase,Mapping=tex-text]{Andada SC}
\addtokomafont{disposition}{\rmfamily}

\usepackage{leading}
\leading{5mm}
\clubpenalty = 10000
\widowpenalty = 10000
\displaywidowpenalty = 10000
\tolerance=5000 %fix hyphenation and protrusion issues
\usepackage{microtype}

\title{book}
\author{author}
\date{}

\begin{document}


Three times a week---Mondays,Wednesdays and Saturdays---at a lopsided dive on the corner of Iberville and Burgundy, Professor Dylan  Hardwick held court.

\end{document}

我相信 Alegreya 是一种免费字体。它似乎与我使用的授权字体大小相同。以下是问题的图片：

Answer 1

TeX 报告

Overfull \hbox (28.41684pt too wide) in paragraph at lines 23--24

你没有说你想做什么来避免这种情况，我可能会补充\-说

\documentclass[fontsize=12pt,paper=5.in:8.in,DIV=12,headings=small]{scrbook} 
\usepackage[english]{babel}
\usepackage{fontspec}
\setromanfont[Mapping=tex-text]{Alegreya}
%\setsansfont[Scale=MatchLowercase,Mapping=tex-text]{Andada SC}
\addtokomafont{disposition}{\rmfamily}

\usepackage{leading}
\leading{5mm}
\clubpenalty = 10000
\widowpenalty = 10000
\displaywidowpenalty = 10000
\tolerance=5000 %fix hyphenation and protrusion issues
\usepackage{microtype}

\title{book}
\author{author}
\date{}

\begin{document}


Three times a week---Mondays,Wednesdays and Saturdays---at a lopsided dive on the corner of Iberville and Burgundy, Professor Dylan  Hardwick held court.


Three times a week---Mondays,Wednesdays and Satur\-days---at a lopsided dive on the corner of Iberville and Burgundy, Professor Dylan  Hardwick held court.

\end{document}