%%
%% The LaTeX Companion, 3ed
%%
%% Example 5-4-16 on page I-408 in "continue --- Help with turning pages".
%%
%% 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{124.20126pt}
\setlength\textheight{82pt}
\addtolength\headsep{-12pt} % shortened for the book
\sloppy
\pagestyle{origplain} % we want to see page numbers
% and the plain pagestyle is
% disabled by the documentclass class
%StartShownPreambleCommands
\usepackage{lipsum,fancyhdr}
\pagestyle{fancy} \fancyhead{}
\fancyhead[C]
{\usebox{\FirstWordBox}%
\,/\,\usebox{\LastWordBox}}
\usepackage[word,allpages]
{continue}
\renewcommand{\preflagword}{[}
\renewcommand{\postflagword}
{ \ldots}
%StopShownPreambleCommands
\begin{document}
\lipsum[1][1-3] \lipsum[2]
\end{document}