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% \iffalse meta-comment
%
%% File: latex-lab-mathpkg.dtx
%
% Copyright (C) 2022,2023 The LaTeX Project
%
% It may be distributed and/or modified under the conditions of the
% LaTeX Project Public License (LPPL), either version 1.3c of this
% license or (at your option) any later version. The latest version
% of this license is in the file
%
% https://www.latex-project.org/lppl.txt
%
%
% The development version of the bundle can be found below
%
% https://github.com/latex3/latex2e/required/latex-lab
%
% for those people who are interested or want to report an issue.
%
%<*driver>
\documentclass{l3doc}
\EnableCrossrefs
\CodelineIndex
\begin{document}
\DocInput{latex-lab-mathpkg.dtx}
\end{document}
%</driver>
%
% \fi
%
%
% \title{The \texttt{latex-lab-mathpkg} code\thanks{}}
% \author{\LaTeX{} Project}
%
% \maketitle
%
% \newcommand\fmi[1]{\begin{quote} TODO: \itshape #1\end{quote}}
% \newcommand\NEW[1]{\marginpar{\mbox{}\hfill\fbox{New: #1}}}
% \providecommand\class[1]{\texttt{#1.cls}}
% \providecommand\pkg[1]{\texttt{#1}}
% \providecommand\hook[1]{\texttt{#1}}
%
% \begin{abstract}
% \end{abstract}
%
% \tableofcontents
%
% \section{Introduction}
%
% This file implements adaptions to various math packages needed for
% the tagging project.
%
% \MaybeStop{\setlength\IndexMin{200pt} \PrintIndex }
%
% \section{The Implementation}
%
% \begin{macrocode}
%<@@=math>
% \end{macrocode}
%
% \begin{macrocode}
%<*kernel>
% \end{macrocode}
%
% \subsection{File declaration}
% \begin{macrocode}
\ProvidesFile{latex-lab-mathpkg.ltx}
[2023-01-05 v0.1a mathpkg adaptions]
% \end{macrocode}
% \subsection{Tagpdf support}
% To make the code independent from tagging being loaded and active
% we load the \pkg{tagpdf-base} package:
%
% \begin{macrocode}
\RequirePackage{tagpdf-base}
% \end{macrocode}
%
%
% \begin{macrocode}
\AddToHook{package/breqn/after}{
\RegisterMathEnvironment{dmath}
\RegisterMathEnvironment{dgroup*}
\AddToHook{env/dmath/begin}{\tagpdfparaOff}
\AddToHook{env/dgroup*/begin}{\tagpdfparaOff}
}
% \end{macrocode}
%
% Force loading of \pkg{amsmath} before \pkg{cases}.
% \begin{macrocode}
\AddToHook {package/cases/before}{\RequirePackage{amsmath}}
\AddToHook{package/cases/after}{
\RegisterMathEnvironment{subnumcases}
}
% \end{macrocode}
%
% \begin{macrocode}
%</kernel>
% \end{macrocode}
% \subsection{Wrapper files for testphase key}
% \Finale
%
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