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%%
%% The LaTeX Companion, 3ed
%%
%% Example 4-2-7 on page I-301 in "newverbs --- Defining \protect \nxLcs {verb} variants as needed".
%%
%% 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}
\setlength\textheight{14\baselineskip}
% small headings for the example
\makeatletter
\renewcommand\section{\@startsection{section}{1}{\z@}%
{-1.25ex \@plus-1ex \@minus-.2ex}%
{.5ex}%
{\normalfont\large\bfseries}}
\makeatother
%StartShownPreambleCommands
\usepackage{newverbs}
\Verbdef*\foo+%& $^_+ \verbdef*\baz+%& $^_+
%StopShownPreambleCommands
\begin{document}
\tableofcontents
\section{Difficult chars (\foo\ or \baz)}
This hides \verb*+%& $^_+ within \verb+\foo+
and \verb+\baz+ so that it can be used in
the heading. Warning: \verb*+%& $^_+ is
equal to \baz{} but not to \foo{}!
\end{document}
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