[Tex/LaTex] How to fit the table of contents into a single page? Revisited

page-breakingtable of contents

This question is essentially the same as How can I fit my table of contents into a single page?

"When I use \tableofcontents I get all my contents in a single page except for a line that goes on the other page, how can I make all in the same page?"

However, the solution given there does not help me, for the following reason. The page next to the ToC is text only (plus one line of ToC), the page after that starts with a section title. The last line of ToC seems to be forced here by LaTeX in order to avoid getting the section title at the bottom: it prefers to put a space between the ToC and the text rather than between paragraphs.

Is there an elegant solution to this?

Best Answer

Henrique's solution is hardwired to a position in the document and assumes that the toc will be only one page. Here is another solution.

\documentclass[12pt,a6paper]{article}
\usepackage{blindtext}
\makeatletter
\def\enlargetocpage{%
  \begingroup
  \@ifstar{\def\x{*}\@enlargetocpage}{\def\x{}\@enlargetocpage}%
}
\def\@enlargetocpage#1{%
  \toks@{#1}%
  \protected@edef\x{%
    \endgroup\noexpand\AtEndDocument{\noexpand\addtocontents{toc}%
    {\protect\enlargethispage\x{\the\toks@}}}%
  }\x
}
\makeatother

\enlargetocpage*{\baselineskip}

\begin{document}
\tableofcontents
\blindtext

\section{A section}

\subsection{And a subsection}

\blindtext

\blinddocument

\blinddocument

\blinddocument

\end{document}

Related Solutions

[Tex/LaTex] How to fit the table of contents into a single page

Add the following code line in the main text immediately before the chapter/section entry that starts a new ToC page:

\addtocontents{toc}{\protect\enlargethispage{\baselineskip}}

This will enlarge the first ToC page by the value of \baselineskip (i.e. one line), which should make the last ToC entry fit on this page.

EDIT: For top-level-entries (e.g. chapters in books) that add some vertical space before their respective ToC entry, a larger value (say, 2\baselineskip) may be needed.

EDIT 2: I have no satisfying answer why the page number is still positioned the way it is, but a workaround. Ignore my first answer and instead add the following to your preamble:

\usepackage{etoolbox}
\makeatletter
\patchcmd{\l@chapter}{1.0em}{0.8em}{}{}
\makeatother

This will reduce the vertical space between chapter ToC entries from 1.0em to 0.8em, which hopefully is enough to make your ToC fit on one page.

EDIT 3: And here's a "satisfying" answer for the observed behaviour of my first solution -- quoting from source2e:

\enlargethispage{<dim>} [a]dds <dim> to the height of the current column only. On the printed page the bottom of this column is extended downwards by exactly <dim> without having any effect on the placement of the footer; this may result in an overprinting.

[Tex/LaTex] How to do this amsart Table of Contents excluding dots on bold section rows

The amsart document class has a very strict way in which it sets things up, specifically because it is meant for publication submissions. As such, there's not much in terms of user-interface variation available. This is a good thing. However, it requires a complete revamp of the ToC-generation and interaction in order for it to be flexible.

Here is something that seems to satisfy all your requirements without using any additional packages (except etoolbox):

enter image description here

\documentclass{amsart}
\usepackage[showframe,paper=a5paper]{geometry}% Just for this example
\usepackage{etoolbox}

% Modifications to amsart ToC-related macros...
\makeatletter
\let\old@tocline\@tocline
\let\section@tocline\@tocline
% Insert a dotted ToC-line for \subsection and \subsubsection only
\newcommand{\subsection@dotsep}{4.5}
\newcommand{\subsubsection@dotsep}{4.5}
\patchcmd{\@tocline}
  {\hfil}
  {\nobreak
     \leaders\hbox{$\m@th
        \mkern \subsection@dotsep mu\hbox{.}\mkern \subsection@dotsep mu$}\hfill
     \nobreak}{}{}
\let\subsection@tocline\@tocline
\let\@tocline\old@tocline

\patchcmd{\@tocline}
  {\hfil}
  {\nobreak
     \leaders\hbox{$\m@th
        \mkern \subsubsection@dotsep mu\hbox{.}\mkern \subsubsection@dotsep mu$}\hfill
     \nobreak}{}{}
\let\subsubsection@tocline\@tocline
\let\@tocline\old@tocline

\let\old@l@subsection\l@subsection
\let\old@l@subsubsection\l@subsubsection

\def\@tocwriteb#1#2#3{%
  \begingroup
    \@xp\def\csname #2@tocline\endcsname##1##2##3##4##5##6{%
      \ifnum##1>\c@tocdepth
      \else \sbox\z@{##5\let\indentlabel\@tochangmeasure##6}\fi}%
    \csname l@#2\endcsname{#1{\csname#2name\endcsname}{\@secnumber}{}}%
  \endgroup
  \addcontentsline{toc}{#2}%
    {\protect#1{\csname#2name\endcsname}{\@secnumber}{#3}}}%

% Handle section-specific indentation and number width of ToC-related entries
\newlength{\@tocsectionindent}
\newlength{\@tocsubsectionindent}
\newlength{\@tocsubsubsectionindent}
\newlength{\@tocsectionnumwidth}
\newlength{\@tocsubsectionnumwidth}
\newlength{\@tocsubsubsectionnumwidth}
\newcommand{\settocsectionnumwidth}[1]{\setlength{\@tocsectionnumwidth}{#1}}
\newcommand{\settocsubsectionnumwidth}[1]{\setlength{\@tocsubsectionnumwidth}{#1}}
\newcommand{\settocsubsubsectionnumwidth}[1]{\setlength{\@tocsubsubsectionnumwidth}{#1}}
\newcommand{\settocsectionindent}[1]{\setlength{\@tocsectionindent}{#1}}
\newcommand{\settocsubsectionindent}[1]{\setlength{\@tocsubsectionindent}{#1}}
\newcommand{\settocsubsubsectionindent}[1]{\setlength{\@tocsubsubsectionindent}{#1}}

% Handle section-specific formatting and vertical skip of ToC-related entries
% \@tocline{<level>}{<vspace>}{<indent>}{<numberwidth>}{<extra>}{<text>}{<pagenum>}
\renewcommand{\l@section}{\section@tocline{1}{\@tocsectionvskip}{\@tocsectionindent}{}{\@tocsectionformat}}%
\renewcommand{\l@subsection}{\subsection@tocline{2}{\@tocsubsectionvskip}{\@tocsubsectionindent}{}{\@tocsubsectionformat}}%
\renewcommand{\l@subsubsection}{\subsubsection@tocline{3}{\@tocsubsubsectionvskip}{\@tocsubsubsectionindent}{}{\@tocsubsubsectionformat}}%
\newcommand{\@tocsectionformat}{}
\newcommand{\@tocsubsectionformat}{}
\newcommand{\@tocsubsubsectionformat}{}
\expandafter\def\csname toc@1format\endcsname{\@tocsectionformat}
\expandafter\def\csname toc@2format\endcsname{\@tocsubsectionformat}
\expandafter\def\csname toc@3format\endcsname{\@tocsubsubsectionformat}
\newcommand{\settocsectionformat}[1]{\renewcommand{\@tocsectionformat}{#1}}
\newcommand{\settocsubsectionformat}[1]{\renewcommand{\@tocsubsectionformat}{#1}}
\newcommand{\settocsubsubsectionformat}[1]{\renewcommand{\@tocsubsubsectionformat}{#1}}
\newlength{\@tocsectionvskip}
\newcommand{\settocsectionvskip}[1]{\setlength{\@tocsectionvskip}{#1}}
\newlength{\@tocsubsectionvskip}
\newcommand{\settocsubsectionvskip}[1]{\setlength{\@tocsubsectionvskip}{#1}}
\newlength{\@tocsubsubsectionvskip}
\newcommand{\settocsubsubsectionvskip}[1]{\setlength{\@tocsubsubsectionvskip}{#1}}

% Adjust section-specific ToC-related macros to have a fixed-width numbering framework
\patchcmd{\tocsection}{\indentlabel}{\makebox[\@tocsectionnumwidth][l]}{}{}
\patchcmd{\tocsubsection}{\indentlabel}{\makebox[\@tocsubsectionnumwidth][l]}{}{}
\patchcmd{\tocsubsubsection}{\indentlabel}{\makebox[\@tocsubsubsectionnumwidth][l]}{}{}

% Allow for section-specific page numbering format of ToC-related entries
\newcommand{\@sectypepnumformat}{}
\renewcommand{\contentsline}[1]{%
  \expandafter\let\expandafter\@sectypepnumformat\csname @toc#1pnumformat\endcsname%
  \csname l@#1\endcsname}
\newcommand{\@tocsectionpnumformat}{}
\newcommand{\@tocsubsectionpnumformat}{}
\newcommand{\@tocsubsubsectionpnumformat}{}
\newcommand{\setsectionpnumformat}[1]{\renewcommand{\@tocsectionpnumformat}{#1}}
\newcommand{\setsubsectionpnumformat}[1]{\renewcommand{\@tocsubsectionpnumformat}{#1}}
\newcommand{\setsubsubsectionpnumformat}[1]{\renewcommand{\@tocsubsubsectionpnumformat}{#1}}
\renewcommand{\@tocpagenum}[1]{%
  \hfill {\mdseries\@sectypepnumformat #1}}

% Small correction to Appendix, since it's still a \section which should be handled differently
\let\oldappendix\appendix
\renewcommand{\appendix}{%
  \leavevmode\oldappendix%
  \addtocontents{toc}{%
    \protect\settowidth{\protect\@tocsectionnumwidth}{\protect\@tocsectionformat\sectionname\space}%
    \protect\addtolength{\protect\@tocsectionnumwidth}{2em}}%
}
\makeatother

% #1 (default is as required)

% #2

% #3
\makeatletter
\settocsectionnumwidth{2em}
\settocsubsectionnumwidth{2.5em}
\settocsubsubsectionnumwidth{3em}
\settocsectionindent{1pc}%
\settocsubsectionindent{\dimexpr\@tocsectionindent+\@tocsectionnumwidth}%
\settocsubsubsectionindent{\dimexpr\@tocsubsectionindent+\@tocsubsectionnumwidth}%
\makeatother

% #4 & #5
\settocsectionvskip{10pt}
\settocsubsectionvskip{0pt}
\settocsubsubsectionvskip{0pt}
    
% #6 & #7
% See #3

% #8
\renewcommand{\contentsnamefont}{\bfseries\Large}

% #9
\settocsectionformat{\bfseries}
\settocsubsectionformat{\mdseries}
\settocsubsubsectionformat{\mdseries}
\setsectionpnumformat{\bfseries}
\setsubsectionpnumformat{\mdseries}
\setsubsubsectionpnumformat{\mdseries}

% #10
% Insert the following command inside your text where you want the ToC to have a page break
\newcommand{\tocpagebreak}{\leavevmode\addtocontents{toc}{\protect\clearpage}}

% #11
\let\oldtableofcontents\tableofcontents
\renewcommand{\tableofcontents}{%
  \vspace*{-\linespacing}% Default gap to top of CONTENTS is \linespacing.
  \oldtableofcontents}

\setcounter{tocdepth}{3}
\begin{document}

\tableofcontents
\section{First section}
\subsection{First subsection}
\subsection{Second subsection}
\subsubsection{First subsubsection}
\subsubsection{Second subsubsection}
\section{Second section}
\subsection{First subsection}
\tocpagebreak
\subsection{Second subsection}
\subsubsection{First subsubsection}
\subsubsection{Second subsubsection}

\appendix
\section{An appendix section}
\subsection{First appendix subsection}
\subsection{Second appendix subsection}
\subsubsection{First appendix subsubsection}
\subsubsection{Second appendix subsubsection}
\end{document}

Specific to the requirements:

This is the default setting under amsart, so there's nothing to be done in this regard.
Only the \subsection and \subsubsection ToC entries have been adjusted to include a dotted line. This was taken from latex.ltx's \@dottedtocline that uses leaders.

Adjustments to the spacing between the dots can be achieved using (for example)

    \makeatletter
    \renewcommand{\subsection@dotsep}{5}% Adjust subsection dot gap
    \renewcommand{\subsubsection@dotsep}{5}% Adjust subsubsection dot gap
    \makeatother

The default values for both are 4.5.

The indentation can be set for each of the section levels \section, \subsection and \subsubsection, in addition to the width of the numbers in the ToC. The following self-explanatory macros set the defaults:

 \makeatletter
 \settocsectionnumwidth{2em}
 \settocsubsectionnumwidth{2.5em}
 \settocsubsubsectionnumwidth{3em}
 \settocsectionindent{1pc}%
 \settocsubsectionindent{\dimexpr\@tocsectionindent+\@tocsectionnumwidth}%
 \settocsubsubsectionindent{\dimexpr\@tocsubsectionindent+\@tocsubsectionnumwidth}%
 \makeatother

The subsection and subsubsection indents are set relative to the sections and subsections, making them line up within the ToC as required.

The default \@tocline macro of amsart provides a vertical skip before every sectional unit. This has been customized and can be set with a number of user-interface macros. The defaults are:
```
 \settocsectionvskip{10pt}
 \settocsubsectionvskip{0pt}
 \settocsubsubsectionvskip{0pt}
```

This leaves a gap of at least 10pt above a \section heading, but no gap (0pt) above a subsection or subsubsection.

See (4) above.
This can be adjusted using the number widths as refined in (3) above.
See (6).
\contentsnamefont holds the formatting of the ToC heading. A simple \renewcommand suffices to changes this. For example,
```
 \renewcommand{\contentsnamefont}{\bfseries\Large}
```

Each sectional heading in the ToC can be formatted at the "number+title" and "page number" level via the following self-explanatory macros:

 \settocsectionformat{\bfseries}
 \settocsubsectionformat{\mdseries}
 \settocsubsubsectionformat{\mdseries}
 \setsectionpnumformat{\bfseries}
 \setsubsectionpnumformat{\mdseries}
 \setsubsubsectionpnumformat{\mdseries}

(Optional) Insert \tocpagebreak within your document at the appropriate place between sectional units where you want the equivalent location to be broken in the ToC.
(Optional) \tableofcontents can be adjusted to insert a negative \vspace where appropriate.

This adaptation is not compatible with hyperref, unfortunately. If that is required, one may be better off by recreating the ToC and sectional unit layout using packages that support this in a more consistent/uniform way, and using a different class like article.

Best Answer

Related Solutions

[Tex/LaTex] How to fit the table of contents into a single page

[Tex/LaTex] How to do this amsart Table of Contents excluding dots on bold section rows

Related Question