%%
%% The LaTeX Companion, 3ed
%%
%% Example 2-3-3 on page I-58 in "tocdata --- Providing extra data for the TOC".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{207.0pt}


  % small headings for the example
  \makeatletter
  \renewcommand\section{\@startsection{section}{1}{\z@}%
    {-1.25ex \@plus-1ex \@minus-.2ex}%
    {.5ex}%
    {\normalfont\large\bfseries}}
  \renewcommand\subsection{\@startsection {subsection}{2}{\z@}%
    {-1.ex \@plus -.5ex \@minus -.2ex}%
    {.3ex}%
    {\normalfont\bfseries}}
  \makeatother

  % This is a dirty hack to avoid 2-column (and a new page for the index)
  %
  % Not meant to be used in a real document!
  %
  \renewcommand\twocolumn[1][]{#1}

%StartShownPreambleCommands
\usepackage{makeidx}
  \makeindex % enable indexing
% save some space in the index:
  \renewcommand\indexspace{\par\vspace{2pt}}

\usepackage{tocdata}
%StopShownPreambleCommands

\begin{document}

\tableofcontents \smallskip

\section{On Cookies}
\subsectionauthor{Preparing cookies}
                 [Sir]{Ben}{User}
Text of his recipes \ldots

\subsectionauthor{Eating cookies}
                 {}{Cookie Monster}[!!]
How to do it \ldots

\printindex
\end{document}