%%
%% The LaTeX Companion, 3ed
%%
%% Example 6-1-5 on page I-435 in "tabto --- An alternative way to tab stops".
%%
%% 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{183.0pt}

%StartShownPreambleCommands
\usepackage{lipsum,calc,tabto}
%StopShownPreambleCommands

\begin{document}
\lipsum[1][1]\tabto{\CurrentLineWidth-1cm}T1
\lipsum[1][2]\tabto{\TabPrevPos}%
                 \smash{\rule{.4pt}{46pt}}T2
\end{document}