在設計我的論文時，出版商要求目錄中至少有兩個點 - 否則需要斷開該行（手動完成會導致其他問題）。有沒有什麼想法可以創建比tocloft \renewcommand\cftdotsep{..}-thing 更優雅的解決方案（這會在其他行產生新問題）？
微量元素：
\documentclass[
paper=233mm:155mm,
fontsize=10.5,
cleardoubleempty,
headings=optiontohead,
bibliography=totoc,
idxtotoc,
pointlessnumbers]
{scrbook}
\usepackage{fontspec}
\setmainfont{Times New Roman}
\usepackage{polyglossia} % Sprachumschaltung
\setdefaultlanguage{german}% Voreingestellte Dokumentsprache: Deutsch
%%% Seitenränder etc.
\usepackage[footnotesep=1.5\baselineskip]{geometry}
\geometry{includehead=true, textwidth=117mm, textheight=186mm, headsep=6mm, left=18mm, bottom=24mm}
%% Design der Überschriften %%%%%%%%%%
\setkomafont{sectioning}{\normalfont\large\scshape\centering}
\setkomafont{part}{\normalfont\Huge\scshape\centering}
\setkomafont{chapter}{\normalfont\LARGE\scshape\centering}
\setkomafont{section}{\normalfont\Large\centering}
\setkomafont{subsection}{\normalfont\large\centering}
\setkomafont{subsubsection}{\normalfont\normalsize\centering}
\setkomafont{minisec}{\normalfont\normalsize\itshape\centering}
\setkomafont{paragraph}{\normalfont\normalsize\itshape}
\setkomafont{subparagraph}{\normalfont\normalsize\itshape}
%% Inhaltsverzeichnis formatieren %%%%%%%%%%%%%%%%%%%
\usepackage{tocloft}
\tocloftpagestyle{empty} %keine Seitenzahl auf erster Seite des Inhaltsverzeichnisses
\renewcommand{\cftchappagefont}{} % Seitenzahlen auch bei Chapter nicht fett
\renewcommand{\cftpartpagefont}{} % Seitenzahlen auch bei Chapter nicht fett
\renewcommand{\cftchapleader}{\cftdotfill{\cftchapdotsep}} % Punkte nicht fett
\renewcommand{\cftchapdotsep}{\cftdotsep}
\renewcommand{\cfttoctitlefont}{\hfill\normalfont\LARGE\scshape} % Größe der Überschrift wie \chapter
\renewcommand{\cftaftertoctitle}{\hfill}
\renewcommand{\cftchapfont}{\normalfont} %% Im Inhaltsverzeichnis Titel normal. alternativ fett. \bfseries
\setcounter{tocdepth}{4}
\setcounter{secnumdepth}{4}
\renewcommand\thesection{\thechapter.\arabic{section}} %% Nummerierung Section Römisch
\renewcommand\thesubsection{\thesection.\arabic{subsection}} %% Nummerierung Subsection arabisch usw.
\renewcommand\thesubsubsection{\thesubsection.\arabic{subsubsection}}
\usepackage{blindtext}
\begin{document}
\tableofcontents
\chapter{A chapter with a title much too long as there aren't any dots any more}
\blindtext
\section{A section that is ok as there are at least two dots left}
\blindtext
\subsection{A subsection again not fitting as it is only ONE dot left}
\blindtext
\end{document}
答案1
一種方法是直接修補\@dottedtocline內部命令，以便它產生至少兩個 em 長的領導者（例如）：
\documentclass{scrbook}
\makeatletter
\renewcommand*\@dottedtocline[5]{%
\ifnum #1>\c@tocdepth \else
\vskip \z@ \@plus.2\p@
{\leftskip #2\relax \rightskip \@tocrmarg \parfillskip -\rightskip
\parindent #2\relax\@afterindenttrue
\interlinepenalty\@M
\leavevmode
\@tempdima #3\relax
\advance\leftskip \@tempdima \null\nobreak\hskip -\leftskip
{#4}\nobreak
\leaders\hbox{$\m@th
\mkern \@dotsep mu\hbox{.}\mkern \@dotsep
mu$}\hskip 2em \@plus 1fill % <<< PATCH
\nobreak
\hb@xt@\@pnumwidth{\hfil\normalfont \normalcolor #5}%
\par}%
\fi}
\makeatother
\begin{document}
\tableofcontents
\chapter{One}
Lorem ipsum.
\section{Some words to fill the line, words to fill the line,
words to fill the line}
Dolor sit amet.
\section{Some words to fill the line, words to fill the line,
words to fill the line, w}
Consectetur adipisci elit.
\section{Some words to fill the line, words to fill the line,
words to fill the line, wo}
Numquam faucibus,.
\end{document}
這倆書和抄寫本類別最終會呼叫\@dottedtocline以與領導者一起產生目錄條目，因此補丁應該可以工作。
輸出：
添加
我忘了提及，一如既往，\patchcmd飯店提供的設施電子工具箱可以使用 package 代替\renewcommand（需要重複完整的定義）：
\documentclass{scrbook}
\usepackage{etoolbox}
\makeatletter
\patchcmd{\@dottedtocline}{\hfill}{\hskip 2em \@plus 1fill }{}{}
\makeatother
\begin{document}
\tableofcontents
\chapter{One}
Lorem ipsum.
\section{Some words to fill the line, words to fill the line,
words to fill the line}
Dolor sit amet.
\section{Some words to fill the line, words to fill the line,
words to fill the line, w}
Consectetur adipisci elit.
\section{Some words to fill the line, words to fill the line,
words to fill the line, wo}
Numquam faucibus,.
\end{document}
第二次補充
評論需要為以下內容量身定制類似的補丁托克洛夫特包裹。快速檢查發現，該套件並不依賴\@dottedtocline產生領導者，而是定義了自己的命令，即\cftdotfillfor the Purpose。因此，在這種情況下必須修補以下命令：
\documentclass{scrbook}
\usepackage{tocloft}
\makeatletter
\renewcommand{\cftdotfill}[1]{%
\def\@tempa{#1}%
\def\@tempb{\cftnodots}%
\ifx\@tempa\@tempb
\hfill % <<< this has not been changed
\else
\leaders\hbox{$\m@th\mkern #1 mu\hbox{\cftdot}\mkern #1 mu$}%
\hskip 2em \@plus 1fill \relax % <<< PATCH
\fi
}
\makeatother
\begin{document}
\tableofcontents
\chapter{One}
Lorem ipsum.
\section{Some words to fill the line, words to fill the line,
words to fill the line}
Dolor sit amet.
\section{Some words to fill the line, words to fill the line,
words to fill the line, w}
Consectetur adipisci elit.
\section{Some words to fill the line, words to fill the line,
words to fill the line, wo}
Numquam faucibus,.
\end{document}
答案2
高德納和普拉斯 1981 年紙「將段落分成行」解釋了 TeX 斷行演算法底層的盒子和膠水模型，並展示了它所啟用的一些煙火技術。
使用這些技巧之一，我們可以設定一個更雄心勃勃的目標：當前導符和頁碼由於空間不足而放置在自己的行中時，用前導符填充前一行，使其與右側的固定邊距以內。
請注意當我們強制添加一條額外的線時，前導者右邊緣的匹配方式。
您可以透過調整 來控制額外的引線突出到下一行出現的頁碼上方的右邊距的程度\rmargin。
\documentclass[a5paper]{article}
\usepackage{fontspec}
\setmainfont{Times New Roman}
\parindent=0pt % optional, mimick TOC environment
\newdimen\pagenumwidth \pagenumwidth=0.5cm % reserved right margin space for page numbers
% leaders will reach flush with it
\newdimen\rmargin \rmargin=0.5cm % reserved right margin for leaders followed by linbreal
\newdimen\minspc \minspc=1.6em % if this much hspace isn't available for leaders, break
\def\fillwith{\hbox to 1ex {\hss.\hss}}
\def\DotsAndPage#1{%
\leaders\fillwith\hfil
\hskip \rmargin
\penalty50
\hskip - \rmargin plus -1fil % Thanks Gustavo
\hbox{}
\unskip\leaders\fillwith\hskip \minspc plus 1fill
\nobreak
{\bfseries\normalsize \hbox to \pagenumwidth{\hfil#1}}%
\break}
\begin{document}
{
\hsize=2.4in
A chapter with a title any \DotsAndPage{1}%\par
A chapter with a title A chapter with a title A chapter with a title\DotsAndPage{13}%\par
A chapter with a title A chapter with a title A chapter with a title with a title so t\DotsAndPage{132}
A chapter with a title A chapter with a title A chapter with a title with a title so th\DotsAndPage{132}
\rmargin=0.25cm % leaders tail bite into right margin
A chapter with a title with a title so th\DotsAndPage{132}
\rmargin=-0.1cm
A chapter with a title with a title so th\DotsAndPage{132}\par
}
\end{document}