%%
%% The LaTeX Companion, 3ed
%%
%% Example 4-3-22 on page I-349 in "paracol --- Several text streams aligned".
%%
%% 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{159.0pt}
\setlength\parindent{0pt}
\addtolength\textwidth{-10pt}
%StartShownPreambleCommands
\usepackage{lineno,paracol} \linenumbers
\setlength\columnsep{35pt}
%StopShownPreambleCommands
\begin{document}
\begin{paracol}{3}[Numbered locally (issue empties)]
\synccounter{linenumber}
Left \switchcolumn Middle \\ Middle \switchcolumn
Right \\ Right \switchcolumn*
\addtocounter{linenumber}{1}
Left again and again \switchcolumn Middle
\end{paracol}
\begin{paracol}{3}[Numbered locally (no sync!)]
Left \switchcolumn Middle \switchcolumn Right
\end{paracol}
\end{document}
