%%
%% The LaTeX Companion, 3ed
%%
%% Example 13-3-30 on page II-323 in "Extensions to the \protect \nxLenv  {T1} encodings".
%%
%% 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{135.0pt}

%StartShownPreambleCommands
\usepackage[icelandic.utf8old]{babel}
%StopShownPreambleCommands

\begin{document}
"o "O "ó "Ó "e "E "é "É
\end{document}