%%    File is part of the "msg" package for LaTeX
%%    which is designed to localize any LaTeX package
%%    or document class.
%% 
%%    This is the package writer's guide.
%%
\documentclass[10pt]{ltxdoc}
  \makeatletter
  \let\msg@MPC\MakePercentComment
  \let\msg@MPI\MakePercentIgnore
  \makeatother
  \usepackage[T1]{fontenc}
  \usepackage{lmodern}% You can remove it if you don't have that font.
  \usepackage{msg}
  \begin{document}

\makeatletter
\def\skipmacrocode{\macro@code\frenchspacing\@vobeyspaces\ymacro@code}
\def\hardmacrocode{\macro@code\frenchspacing\@vobeyspaces\zmacro@code}
\def\hard{\let\macrocode\hardmacrocode}
\def\endhard{\let\macrocode\skipmacrocode}
\endhard
\let\endhardmacrocode\endmacrocode
\catcode`\!=\catcode`\% 
\begingroup
\catcode`\|=\z@ \catcode`\[=\@ne \catcode`\]=\tw@
\catcode`\{=12 \catcode`\}=12
\catcode`\%=12 \catcode`\ =\active \catcode`\\=\active
|gdef|zmacro@code#1%    \end{macrocode}[#1|end[macrocode]]
|gdef|ymacro@code#1%    \end{macrocode}[|end[macrocode]]
|endgroup
\catcode`\!=12
\makeatother
\let\ifguide\iftrue\let\PrintIndex\relax

  \DocInput{msg.dtx} 
\end{document}
%%%%%%%%%%%%%%%%