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+% \iffalse meta-comment
+%
+%% File: latex-lab-text.dtx (C) Copyright 2023 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-text.dtx}
+\end{document}
+%</driver>
+%
+% \fi
+%
+% \title{The \textsf{latex-lab-text} package\\
+% Changes and additions to the kernel related to the tagging of various small text commands}
+% \author{\LaTeX{} Project\thanks{Initial implementation done by Ulrike Fischer}}
+% \date{Version 0.80 2023-05-28}
+%
+% \maketitle
+%
+% \newcommand{\xt}[1]{\textsl{\textsf{#1}}}
+% \newcommand{\TODO}[1]{\textbf{[TODO:} #1\textbf{]}}
+% \newcommand{\docclass}{document class \marginpar{\raggedright document class
+% customizations}}
+%
+% \providecommand\hook[1]{\texttt{#1}}
+%
+% \begin{abstract}
+% \end{abstract}
+%
+% \section{Introduction}
+%
+% The followings contains small changes to improve the tagging of
+% (inline) text commands.
+%
+% While the tagging of the \LaTeX{} logo is quite straightforward, tagging of
+% \cs{emph} as \texttt{EM} and \cs{textbf} as \texttt{Strong}
+% can have unwanted side-effect as both tags are inline tags and so not every inner
+% structure is allowed. Probably both commands will need an optional argument or a
+% starred variant which suppress the tagging.
+%
+% \section{Implementation}
+% \begin{macrocode}
+%<*package>
+%<@@=tag>
+% \end{macrocode}
+% \begin{macrocode}
+\ProvidesExplPackage {latex-lab-testphase-text} {2023-05-28} {0.8}
+ {Code related to the tagging of inline text commands}
+% \end{macrocode}
+
+% \subsection{The \LaTeX\ and \TeX\ logo}
+% This uses the generic hooks, so that it catches also other definitions.
+% For \cs{LaTeX} we stop tagging to avoid that the inner \cs{TeX} leads to a double tagging.
+% \begin{macrocode}
+\AddToHook{cmd/LaTeX/before}
+ {
+ \mode_leave_vertical:
+ \tag_mc_end_push:
+ \tag_struct_begin:n{tag=Span,actualtext=LaTeX}
+ \tag_mc_begin:n{}
+ \tag_stop:n{LaTeX}
+ }
+\AddToHook{cmd/LaTeX/after}
+ {
+ \tag_start:n{LaTeX}
+ \tag_mc_end:
+ \tag_struct_end:
+ \tag_mc_begin_pop:n{}
+ }
+\AddToHook{cmd/TeX/before}
+ {
+ \mode_leave_vertical:
+ \tag_mc_end_push:
+ \tag_struct_begin:n{tag=Span,actualtext=TeX}
+ \tag_mc_begin:n{}
+ }
+\AddToHook{cmd/TeX/after}
+ {
+ \tag_mc_end:
+ \tag_struct_end:
+ \tag_mc_begin_pop:n{}
+ }
+% \end{macrocode}
+%
+% \subsection{Emphasizing}
+% We tag \cs{emph} but leave commands like \cs{textbf} alone, as it is not
+% clear if they always have a semantic meaning.
+% \begin{macrocode}
+\AddToHook{cmd/emph/before}
+ {
+ \mode_leave_vertical:
+ \tag_mc_end_push:
+ \tag_struct_begin:n{tag=Em}
+ \tag_mc_begin:n{}
+ }
+
+\AddToHook{cmd/emph/after}
+ {
+ \tag_mc_end:
+ \tag_struct_end:
+ \tag_mc_begin_pop:n{}
+ }
+% \end{macrocode}
+% \begin{macrocode}
+%</package>
+% \end{macrocode}
+% \begin{macrocode}
+%<*latex-lab>
+\ProvidesFile{text-latex-lab-testphase.ltx}
+ [2023-05-28 v0.8 code related to the tagging of bib and citations]
+
+\RequirePackage{latex-lab-testphase-text}
+
+%</latex-lab>
+% \end{macrocode}