目录中特定级别的间距

Question

我正在尝试控制目录中条目之间的垂直间距。具体来说，我需要在主要部分标题之间以及每次更改级别时使用双倍行距，并在同级别的子标题之间使用单倍行距。

\documentclass[10pt,a4paper]{book}
\usepackage[latin1]{inputenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{graphicx}
\usepackage[subfigure]{tocloft} % add nested figures
\usepackage{subfigure}


\renewcommand{\cftchapdotsep}{\cftdotsep}       % Give chapters dots too
\renewcommand{\cftchapfont}{\normalfont}                    % Change to normal font 
\renewcommand{\cftchappagefont}{}               % Change to normal font 

% Center the word 'CONTENTS' over table of contents
\renewcommand{\contentsname}{\hspace*{\fill}\normalfont\normalsize CONTENTS \hspace*{\fill}}  

%add page flush right at top of TOC
\renewcommand{\cftaftertoctitle}{%
    \\[\baselineskip]\mbox{}\hfill{\normalfont Page}}


% My attempt to contol the spacing using tocloft
\renewcommand{\cftchapafterpnum}{\vspace{\cftbeforechapskip}}
%\renewcommand{\cftsecafterpnum}{\vspace{\cftbeforechapskip}}


\begin{document}



\tableofcontents

\chapter{First Chapter}
\chapter{Second Chapter}

\section{First Section}
\section{Second Section}
\subsection{First Subsection}
\subsection{Second Subsection}
\subsubsection{First Subsubsection}
\subsubsection{Second subsubsection}
\chapter{Third Chapter}


\end{document}

其结果为：

我需要有：

• 第 2.2 节和第 2.2.1 节之间有双倍行距

这邮政看起来相似，但我不明白该命令的作用\renewcommand{\cftchapafterpnum}{\vspace{\cftbeforechapskip}}。通过简单的试错，我得出结论，该行

\renewcommand{\cftchapafterpnum}{\vspace{\cftbeforechapskip}}

在第 1 章和第 1.1 节之间创建了一个额外的空格，但我不明白为什么

\renewcommand{\cftsecafterpnum}{\vspace{\cftbeforesecskip}}

不会更改生成的文档。我已查看了托克洛夫特，但我似乎不明白为什么更改\cftchapafterpnum为\cftsecafterpnum没有效果。我希望我接近了。

提前致谢！

Answer 1

轻松完成埃托克在“另一种兼容模式”中（参见其文档）。

\documentclass[10pt,a4paper]{book}
\usepackage[latin1]{inputenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{graphicx}
\usepackage[subfigure]{tocloft} % add nested figures
\usepackage{subfigure}


\renewcommand{\cftchapdotsep}{\cftdotsep}       % Give chapters dots too
\renewcommand{\cftchapfont}{\normalfont}                    % Change to normal font 
\renewcommand{\cftchappagefont}{}               % Change to normal font 

% Center the word 'CONTENTS' over table of contents
\renewcommand{\contentsname}{\hspace*{\fill}\normalfont\normalsize CONTENTS \hspace*{\fill}}  

%add page flush right at top of TOC
\renewcommand{\cftaftertoctitle}{%
    \\[\baselineskip]\mbox{}\hfill{\normalfont Page}}


% OP's attempt to control the spacing using tocloft
%\renewcommand{\cftchapafterpnum}{\vspace{\cftbeforechapskip}}
%\renewcommand{\cftsecafterpnum}{\vspace{\cftbeforechapskip}}

\usepackage{etoc}
\newskip\myskip
\myskip\cftbeforechapskip
\cftbeforechapskip0pt\relax

\etocsetstyle{chapter}
  {}
  {\etociffirst{}{\addvspace{\myskip}}}
  {\etocifnumbered
     {\etocsavedchaptertocline{\numberline{\etocnumber}\etocname}{\etocpage}}
     {\etocsavedchaptertocline{\etocname}{\etocpage}}%
  }
  {}

\etocsetstyle{section}
  {\addvspace{\myskip}}%
  {}
  {\etocifnumbered
     {\etocsavedsectiontocline{\numberline{\etocnumber}\etocname}{\etocpage}}
     {\etocsavedsectiontocline{\etocname}{\etocpage}}%
  }
  {\addvspace{\myskip}}

\etocsetstyle{subsection}
  {\addvspace{\myskip}}
  {}
  {\etocifnumbered
     {\etocsavedsubsectiontocline{\numberline{\etocnumber}\etocname}{\etocpage}}
     {\etocsavedsubsectiontocline{\etocname}{\etocpage}}%
  }
  {\addvspace{\myskip}}

\etocsetstyle{subsubsection}
  {\addvspace{\myskip}}
  {}
  {\etocifnumbered
     {\etocsavedsubsubsectiontocline{\numberline{\etocnumber}\etocname}{\etocpage}}
     {\etocsavedsubsubsectiontocline{\etocname}{\etocpage}}%
  }
  {\addvspace{\myskip}}



\begin{document}



\tableofcontents

\chapter{First Chapter}
\section{First Section}
\section{Second Section}
\chapter{Second Chapter}
\section{Third Section}
\section{Fourth Section}
\subsection{First Subsection}
\subsection{Second Subsection}
\subsubsection{First Subsubsection}
\subsubsection{Second subsubsection}
\section{Fifth Section}
\section{Sixth Section}
\chapter{Third Chapter}

\end{document}

重点在于它etoc旨在检测目录中何时从小节转到节或从节转到章等等。

为了实现最大程度的兼容性，我将所有样式加倍为编号和未编号的情况，以便可以更改 secnumdepth 计数器并且它仍然有效。