%%
%% The LaTeX Companion, 3ed
%%
%% Example 4-2-33 on page I-316 in "Variant environments and commands".
%%
%% 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}

%StartShownPreambleCommands
\usepackage{fancyvrb}
%StopShownPreambleCommands

\begin{document}
\begin{BVerbatim}[boxwidth=6pc,baseline=c]
Box is too small, so text
sticks out on the right!
\end{BVerbatim}
\begin{BVerbatim}[baseline=t]
Box has natural width.
Note the alignment.
\end{BVerbatim}
\end{document}