[Tex/LaTex] Add a symbol in ToC between the section number and its section

spacingtable of contentstocloft

My problem is that there exists an overlap between the symbol to introduce and the section title; it is manifest with two \heartsuits

\documentclass{article}
\usepackage{tocloft}
\usepackage{lipsum}
%\contentslabel{3em}


\renewcommand\tableofcontents{%
\section*{\contentsname\@mkboth{}{}}%
\thispagestyle{empty}%
%\small%
\@starttoc{toc}%
\thispagestyle{empty}%
\clearpage%
}
\makeatother



\makeatletter
\renewcommand{\@dotsep}{2}
%%\renewcommand{\cftdot}{\ensuremath{\ast}}
\renewcommand{\cftpnumalign}{r}
%\renewcommand{\cftsecpresnum}{SOMETHING }
\renewcommand{\cftsecfont}{\bfseries}
\renewcommand{\cftsecleader}{\bfseries\cftdotfill{\cftsecdotsep}}
\renewcommand{\cftsecpagefont}{\bfseries}
%\renewcommand{\cftsecpresnum}{SOMETHING }
\renewcommand{\cftsecaftersnum}{$\heartsuit$}
    \renewcommand{\cftsecaftersnumb}{$\heartsuit$}
    %\renewcommand{\cftsecaftersnumb}{\\}
%   \newlength{\mylen} % a "scratch" length
%   \settowidth{\mylen}{\bfseries\cftsecpresnum\cftsecaftersnum} % extra space
%   \addtolength{\cftsecnumwidth}{\mylen} % add the extra space
    %\makeatother


\begin{document}
\tableofcontents

\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]

\end{document}

The modifying commands come straight from the manual of tocloft.

My goal is to have {the section number}\heartsuit{the section title} with no space in-between the characters.
I think the solution is to make the section numbers ragged on the right, just like all the page numbers are.
The package does not seem to offer a manner to control the box controlling the section number. Is this possible with titletoc? (its readme is very succinct and I do not understand half of what is written)

EDITion:

@Werner: I have a snag with the code. I want to use the same pattern for the subsections and subsubsections as the one of the sections. So I use

\renewcommand{\cftsecaftersnum}{$\bullet$}
%\renewcommand{\cftsecnumwidth}{2em}

\renewcommand{\cftsubsecaftersnum}{$\bullet$}
%\renewcommand{\cftsubsecnumwidth}{0em}

\renewcommand{\cftsubsubsecaftersnum}{$\bullet$}
\renewcommand{\numberline}[1]{\makebox[\@tempdima][r]{\@cftbsnum #1\@cftasnum}\@cftasnumb}

but the beginnings of the subsections and subsubsections is not adequate:
(I use roman numbers for my sections and sub(sub)sections)
Ideally, the number subsection (and subsubsection) must be aglin with the first letter of the sections it belongs to

II$\bullet$Title
           II.1$\bullet$subtitle
                        II.1.1$\bullet$subtitle

But it is not the case with the above code.

Best Answer

My goal is to have {the section number}\heartsuit{the section title} with no space in-between the characters.

Then the following will do:

enter image description here

\documentclass{article}
\usepackage{tocloft,lipsum}

\makeatletter
\renewcommand\tableofcontents{%
  \section*{\contentsname\@mkboth{}{}}%
  \thispagestyle{empty}%
  \@starttoc{toc}%
  \thispagestyle{empty}%
  \clearpage%
}

\renewcommand{\numberline}[1]{%
  \@cftbsnum #1\@cftasnum\@cftasnumb}
\renewcommand{\@dotsep}{2}
\renewcommand{\cftpnumalign}{r}
\renewcommand{\cftsecfont}{\bfseries}
\renewcommand{\cftsecleader}{\bfseries\cftdotfill{\cftsecdotsep}}
\renewcommand{\cftsecpagefont}{\bfseries}
\renewcommand{\cftsecaftersnum}{$\heartsuit$}
\makeatother

\begin{document}
\tableofcontents

\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]
\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]\section{1}\lipsum[4-11]

\end{document}

I think the solution is to make the section numbers ragged on the right, just like all the page numbers are.

You probably mean \raggedleft (or flush right). For this you can use the following definition of \numberline and set \cftsecnumwidth:

\renewcommand{\numberline}[1]{% 
  \makebox[\@tempdima][r]{\@cftbsnum #1\@cftasnum}\@cftasnumb}
\renewcommand{\cftsecnumwidth}{2em}

enter image description here

The package does not seem to offer a manner to control the box controlling the section number. Is this possible with titletoc?

This is perhaps only partially true. However, for an inexperienced user, it's not that obvious how one can manipulate the macros to achieve what you're looking for. I'll just show some information below, since the control of the boxes really depends on what you want to do.

According to the tocloft documentation, the construction of the ToC entry has the following form for sectional unit X:

This is a simplied pseudo-code version for the typesetting of numbered [...] entries.
{\cftXfont {\cftXpresnum SNUM\cftXaftersnum\hfil} \cftXaftersnumb TITLE}%
    {\cftXleader}{\cftXpagefont PAGE}\cftXafterpnum\par

In terms of the actual macro contents for section, the above pseudo-code is contained within \l@section, \numberline and \cftsecfillnum (taken from tocloft.dtx with comments added to highlight certain elements):

\renewcommand*{\l@section}[2]{%
  \ifnum \c@tocdepth >\z@
    \if@cfthaschapter
      \vskip \cftbeforesecskip
    \else
      \addpenalty\@secpenalty
      \addvspace{\cftbeforesecskip}
    \fi
    {\leftskip \cftsecindent\relax
     \rightskip \@tocrmarg
     \parfillskip -\rightskip
     \parindent \cftsecindent\relax\@afterindenttrue
     \interlinepenalty\@M
     \leavevmode
     \@tempdima \cftsecnumwidth\relax
     \let\@cftbsnum \cftsecpresnum
     \let\@cftasnum \cftsecaftersnum
     \let\@cftasnumb \cftsecaftersnumb
     \advance\leftskip \@tempdima \null\nobreak\hskip -\leftskip
     {\cftsecfont #1}\nobreak% <----- This is \cftXfont; #1 relates to \numberline
     \cftsecfillnum{#2}}%
  \fi}

\renewcommand{\numberline}[1]{% 
  \hb@xt@\@tempdima{\@cftbsnum #1\@cftasnum\hfil}\@cftasnumb}% <-- This is all similar to
                % {\cftXpresnum SNUM\cftXaftersnum\hfil} \cftXaftersnumb TITLE}

\newcommand{\cftsecfillnum}[1]{%
  {\cftsecleader}\nobreak% <--- This is {\cftXleader}
  \makebox[\@pnumwidth][\cftpnumalign]{\cftsecpagefont #1}\cftsecafterpnum\par% <- This is
                                   %  {\cftXpagefont PAGE}\cftXafterpnum\par
}

It's clear from \numberline that the default is "ragged right" (or left aligned) due to the \hfil on the right. However, we can achieve a "ragged left" (or right aligned) look by changing \cftXpresnum to be \hfil and let \cftXaftersnum (insert a $\heartsuit$ by also) \@gobble the right-hand \hfil:

\renewcommand{\cftsecpresnum}{\hfil}
\renewcommand{\cftsecaftersnum}{$\heartsuit$\@gobble}

The above would be similar to our above approach of using

\renewcommand{\numberline}[1]{% 
  \makebox[\@tempdima][r]{\@cftbsnum #1\@cftasnum}\@cftasnumb}

Here is an updated solution that aligns the ToC-entries at the indentation levels:

ToC-alignment

\documentclass{article}
\usepackage{tocloft,lipsum}

\makeatletter
\renewcommand\tableofcontents{%
  \section*{\contentsname\@mkboth{}{}}%
  \thispagestyle{empty}%
  \@starttoc{toc}%
  \thispagestyle{empty}%
  \clearpage%
}

\renewcommand{\@dotsep}{2}
\renewcommand{\cftpnumalign}{r}
\renewcommand{\cftsecfont}{\bfseries}
\renewcommand{\cftsecleader}{\bfseries\cftdotfill{\cftsecdotsep}}
\renewcommand{\cftsecpagefont}{\bfseries}

\renewcommand{\cftsecaftersnum}{\hfill$\bullet$\hfill\null}
\renewcommand{\cftsecnumwidth}{2em}%  <--------------------------------------
                                                               %            |  <--------
\renewcommand{\cftsubsecaftersnum}{\hfill$\bullet$\hfill\null} %            |          |
\renewcommand{\cftsubsecindent}{2em}% Width of \section number in ToC -------          |
\renewcommand{\cftsubsecnumwidth}{2.5em}                          %                    |
                                                                  %                    |
\renewcommand{\cftsubsubsecaftersnum}{\hfill$\bullet$\hfill\null} %                    |
\renewcommand{\cftsubsubsecindent}{4.5em}% Width of \section + \subsection number ------
\renewcommand{\cftsubsubsecnumwidth}{3.25em}
\renewcommand{\numberline}[1]{\makebox[\@tempdima][l]{\@cftbsnum #1\@cftasnum}\@cftasnumb}

\makeatother

\begin{document}
\tableofcontents

\section{Section}\lipsum[4-11]\subsection{Subsection}\lipsum[4-11]\subsubsection{Subsubsection}\lipsum[4-11]
\section{Section}\lipsum[4-11]\subsection{Subsection}\lipsum[4-11]\subsubsection{Subsubsection}\lipsum[4-11]
\section{Section}\lipsum[4-11]\subsection{Subsection}\lipsum[4-11]\subsubsection{Subsubsection}\lipsum[4-11]
\section{Section}\lipsum[4-11]\subsection{Subsection}\lipsum[4-11]\subsubsection{Subsubsection}\lipsum[4-11]
\section{Section}\lipsum[4-11]\subsection{Subsection}\lipsum[4-11]\subsubsection{Subsubsection}\lipsum[4-11]
\section{Section}\lipsum[4-11]\subsection{Subsection}\lipsum[4-11]\subsubsection{Subsubsection}\lipsum[4-11]
\section{Section}\lipsum[4-11]\subsection{Subsection}\lipsum[4-11]\subsubsection{Subsubsection}\lipsum[4-11]
\section{Section}\lipsum[4-11]\subsection{Subsection}\lipsum[4-11]\subsubsection{Subsubsection}\lipsum[4-11]
\section{Section}\lipsum[4-11]\subsection{Subsection}\lipsum[4-11]\subsubsection{Subsubsection}\lipsum[4-11]
\section{Section}\lipsum[4-11]\subsection{Subsection}\lipsum[4-11]\subsubsection{Subsubsection}\lipsum[4-11]
\section{Section}\lipsum[4-11]\subsection{Subsection}\lipsum[4-11]\subsubsection{Subsubsection}\lipsum[4-11]

\end{document}

Related Solutions

[Tex/LaTex] Page number on the left with book class

Here's a solution that uses the titletoc package; the important part of the code is

% chapter formatting in toc
\titlecontents{chapter}
[0.0cm]             % left margin
{}                  % above code
{%                  % numbered format
{\llap{\thecontentspage\hspace{.5cm}}\thecontentslabel~}%
}%
{}         % unnumbered format
{}         % filler-page-format, e.g dots

screenshot

Here's a complete MWE to play with.

% arara: pdflatex
% arara: pdflatex
\documentclass{book}
\usepackage{lipsum}
\usepackage{titlesec}
\usepackage{titletoc}

% chapter formatting in toc
\titlecontents{chapter}
[0.0cm]             % left margin
{}                  % above code
{%                  % numbered format
{\llap{\thecontentspage\hspace{.5cm}}\thecontentslabel~}%
}%
{}         % unnumbered format
{}         % filler-page-format, e.g dots

\begin{document}
\tableofcontents

\chapter{mychapter} 
\section{mysection}
\subsection{mysubsection}
\section{mysection}
\subsection{mysubsection}
\subsection{mysubsection}
\subsection{mysubsection}
\subsection{mysubsection}
\subsection{mysubsection}
\chapter{mychapter} 
\section{mysection}
\subsection{mysubsection}
\section{mysection}
\subsection{mysubsection}
\subsection{mysubsection}
\subsection{mysubsection}
\subsection{mysubsection}
\subsection{mysubsection}
\chapter{mychapter} 
\end{document}

[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] Page number on the left with book class

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

Related Question