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@u-fischer
u-fischer committed Dec 20, 2024
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120 changes: 60 additions & 60 deletions required/latex-lab/documentmetadata-support.dtx
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% is easier to update it without the need to build a full \LaTeX{}
% release. Over time the functionality will move fully into the
% kernel.
%
%
% \cs{DocumentMetadata} also loads and activates
% the new PDF management code from \pkg{pdfmanagement-testphase}.
% As this forces the loading of the \pkg{l3backend} files, a backend
Expand All @@ -85,12 +85,12 @@
% project~\cite{blueprint}.
%
% \section{The \cs{DocumentMetadata} command}
%
%
% \begin{function}{\DocumentMetadata}
% \begin{syntax}
% \cs{DocumentMetadata}\Arg{key-value list}
% \end{syntax}
%
%
% The command should be used as the first command in a document, before
% \cs{documentclass}. It takes a key-value argument.
% \end{function}
Expand Down Expand Up @@ -137,38 +137,38 @@
% The |u| variants do not enforce unicode,
% but they will pass the information to hyperref. The |a| variants
% do \emph{not} enforce (or even test) a tagged pdf yet.
%
%
% Beside the A-standards it is also possible to use the values
% |X-4|, |X-4p|, |X-5g|, |X-5n|, |X-5pg|, |X-6|, |X-6n|, |X-6p| for
% a PDF/X and |UA-1| and |UA-2| for PDF/UA standard.
% a PDF/X and |UA-1| and |UA-2| for PDF/UA standard.
% |UA-2| should only be used together with PDF 2.0.
% These keys currently set mostly \emph{only} the relevant
% XMP-metadata.
% XMP-metadata.
%
% |pdfstandard| can be used more than once to set overlapping standards, e.g:\\
% |pdfstandard=A-2b,pdfstandard=X-4,pdfstandard=UA-1|
%
%
% If XMP-metadata are added (see the following key \texttt{xmp})
% the needed conformance marker for the standards are set.
%
%
% More information can be found in the documentation
% of \pkg{l3pdfmeta}.
% of \pkg{l3pdfmeta}.
%
% \item[\texttt{xmp}] A boolean, if set to false no XMP metadata are added to the PDF.
% The initial value is true. Details are described in the documentation of \pkg{l3pdfmeta}.
%
%
% \item[\texttt{colorprofiles}] This allows to load icc-colorprofiles. Details
% are described in the documentation of \pkg{l3pdfmeta}.
%
% \item[\texttt{testphase}] This key is used to load testphase code.
% \item[\texttt{testphase}] This key is used to load testphase code.
% The |testphase| key can only be used in the first \cs{DocumentMetadata}.
% The values it accepts and their effect will change over time, when testphase packages are added or
% removed or when the code is moved into the kernel. The key accepts a list of values
% and it can be used more than once.
%
% The value \texttt{latest} loads all modules that we recommend
%
% The value \texttt{latest} loads all modules that we recommend
% so that it is not necessary to specify individual modules.
%
%
% The \texttt{phase} keys bundle testphase modules. They also all activate tagging.
% \begin{description}
% \item[\texttt{phase-I}]
Expand All @@ -185,37 +185,37 @@
% This is the current development phase.
% It differs from \texttt{phase-II} \emph{a lot}: It will
% load new code for the tagging of lists, sectioning commands,
% table of contents and similar lists, graphics, minipages and floats.
% As it redefines many internals it is currently restricted to the use of
% standard classes (article, report, and book)
% and it supports only a limited number of add-on packages.
% table of contents and similar lists, graphics, minipages and floats.
% As it redefines many internals it is currently restricted to the use of
% standard classes (article, report, and book)
% and it supports only a limited number of add-on packages.
% \end{description}
%
%
% The various testphase modules can also be loaded individually (at least in theory,
% there can be hidden dependencies). If loaded like this, the tagpdf package is not
% loaded and tagging is not activated! The list of modules will change over time.
% \begin{description}
% \begin{description}
% \item[\texttt{new-or-1}] This patches a few commands related
% to the output routine. The patches are needed for the tagging
% of paragraphs, for the tagging of header and footer and
% of paragraphs, for the tagging of header and footer and
% to allow the PDF management to insert code which avoids that
% links happening at page breaks spills into the header and footer.
% links happening at page breaks spills into the header and footer.
% This code is automatically loaded if the \texttt{testphase} values
% \texttt{phase-I}, \texttt{phase-II} or \texttt{new-or} are used.%
% \item[\texttt{new-or}] This loads more changes to the output routine required for the
% tagging. It is not compatible with every class! The code is also loaded by the
% \texttt{phase-I}, \texttt{phase-II} or \texttt{new-or} are used.%
% \item[\texttt{new-or}] This loads more changes to the output routine required for the
% tagging. It is not compatible with every class! The code is also loaded by the
% \texttt{phase-II} value.
% \item[\texttt{sec}] This adapts commands related to sectioning to make them tagging aware.
% The \texttt{sec} module is loaded by \texttt{phase-III}.
% \item[\texttt{toc}] This adapts commands related to the table of contents and
% similar list to make them tagging aware. The \texttt{toc} module is loaded by \texttt{phase-III}.
% similar list to make them tagging aware. The \texttt{toc} module is loaded by \texttt{phase-III}.
% \item[\texttt{graphic}] This enables tagging support for
% the \cs{includegraphics} command and the \texttt{picture} environment.
% the \cs{includegraphics} command and the \texttt{picture} environment.
% This code is also loaded by the \texttt{phase-III} key.
% \item[\texttt{block}] This reimplements lists and blocks environments and
% add tagging support.
% This code is also loaded by the \texttt{phase-III} key.
% \item[\texttt{minipage}] This adds tagging support to \texttt{minipage}
% \item[\texttt{minipage}] This adds tagging support to \texttt{minipage}
% and \cs{parbox}.
% This code is also loaded by the \texttt{phase-III} key.
% \item[\texttt{float}] This adds tagging support to floats.
Expand All @@ -232,16 +232,16 @@
% and \cs{author} commands to fill the XMP-metadata and set the window title.
% It is not compatible with packages and classes which redefine these commands
% too. The module is currently not loaded by any \texttt{phase} key.
% \item[\texttt{math}] This adapts math for tagging. This is only a prototype.
% The module is currently not loaded by any \texttt{phase} key.
% \item[\texttt{table}] This provides basic tagging for
% \texttt{tabular}, \texttt{longtable} and similar table environments.
% The module is currently not loaded by any \texttt{phase} key. Its use and
% restrictions is documented in \texttt{latex-lab-table.pdf}.%
% \item[\texttt{math}] This adapts math for tagging. This is only a prototype.
% The module is currently not loaded by any \texttt{phase} key.
% \item[\texttt{table}] This provides basic tagging for
% \texttt{tabular}, \texttt{longtable} and similar table environments.
% The module is currently not loaded by any \texttt{phase} key. Its use and
% restrictions is documented in \texttt{latex-lab-table.pdf}.%
% \item[\texttt{firstaid}] This contains small adjustments to external packages.
% The module is currently not loaded by any \texttt{phase} key.
% The module is currently not loaded by any \texttt{phase} key.
% \end{description}
%
%
%
% \item[\texttt{debug}] This key activates some debug options. It takes a list of key-values
% as value. Currently the following keys are known:
Expand All @@ -255,12 +255,12 @@
% related to them. More information can be found in the documentation of
% \pkg{pdfmanagement-firstaid}.
% \item[\texttt{xmp-export}] This will export the XMP-metadata to a file \verb+\jobname.xmpi+.
% with \texttt{debug=\{xmp-export=filename\}} the file name can be changed.
% with \texttt{debug=\{xmp-export=filename\}} the file name can be changed.
% More information can be found in the documentation of \pkg{l3pdfmeta} of the \pkg{pdfmanagement-testphase}
% bundle.
% bundle.
% \item[\texttt{tagpdf}] This loads the package tagpdf-debug which enhances
% various commands from tagpdf with additional debugging options. This can slow down
% the compilation!
% the compilation!
% \end{description}
% \end{description}
%
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% \begin{macrocode}
\clist_if_exist:NF \g_@@_firstaidoff_clist
{ \clist_new:N \g_@@_firstaidoff_clist }
% \end{macrocode}
% \end{macrocode}
% \end{variable}
% \begin{variable}{\g_@@_testphase_tl}
% a tl to store the testphase loading code so that we can load them at
Expand All @@ -316,7 +316,7 @@
{ \tl_new:N \g_@@_testphase_tl }
% \end{macrocode}
% \end{variable}
%
%
% \subsection{Kernel changes with \cs{DocumentMetadata}}
% \begin{macro}{\@kernel@before@DocumentMetadata}
% \begin{macrocode}
Expand All @@ -331,7 +331,7 @@
% \end{macro}

% \subsection{\cs{DocumentMetadata}}
%
%
% \begin{macro}{\DocumentMetadata}
%
% \cs{DocumentMetadata} should not be used after
Expand Down Expand Up @@ -377,27 +377,27 @@
{
\PassOptionsToPackage{customdriver=hgeneric-testphase}{hyperref}
% \end{macrocode}
% Finally we setup the language default.
% Finally we setup the language default.
% This is done after the begindocument hook so that it can pick up settings
% from babel. If the Catalog dictionary already contains a lang value we do nothing,
% otherwise we use the value stored in \cs{BCPdata}, either the main language
% (if its exists) or the fall back language.
% (if its exists) or the fall back language.
% Note: if babel is loaded without a language this gives the language \texttt{und}.
% \begin{macrocode}
% \begin{macrocode}
\g@addto@macro\@kernel@after@begindocument
{
{
\pdfdict_get:nnN {g__pdf_Core/Catalog}{Lang}\l_@@_tmpa_tl
\quark_if_no_value:NT\l_@@_tmpa_tl
\quark_if_no_value:NT\l_@@_tmpa_tl
{
\tl_if_empty:eTF { \BCPdata{main.language} }
{ \tl_set:Ne \l_@@_tmpb_tl { \BCPdata{language} } }
{ \tl_set:Ne \l_@@_tmpb_tl { \BCPdata{main.language} } }
\msg_warning:nne { meta } { lang-missing }{ \l_@@_tmpb_tl }
\exp_last_unbraced:Ne
\AddToDocumentProperties{[document]{lang}{\l_@@_tmpb_tl}}
\pdfmanagement_add:nne {Catalog} {Lang}{(\l_@@_tmpb_tl)}
\AddToDocumentProperties{[document]{lang}{\l_@@_tmpb_tl}}
\pdfmanagement_add:nne {Catalog} {Lang}{(\l_@@_tmpb_tl)}
}
}
}
}
% \end{macrocode}
% \cs{pdfmanagement_add:nnn} has collected values in this hook.
Expand Down Expand Up @@ -472,29 +472,29 @@
\prop_gset_eq:Nc \g__pdfmeta_standard_prop { g__pdfmeta_standard_pdf/#1 _prop }
\AddToDocumentProperties [document]{pdfstandard}{#1}
}
,_pdfstandard / A-4F .code:n =
,_pdfstandard / A-4F .code:n =
{
\prop_gset_eq:Nc \g__pdfmeta_standard_prop { g__pdfmeta_standard_pdf/A-4F_prop }
\AddToDocumentProperties [document]{pdfstandard}{A-4F}
}
,_pdfstandard / A-4E .code:n =
,_pdfstandard / A-4E .code:n =
{
\prop_gset_eq:Nc \g__pdfmeta_standard_prop { g__pdfmeta_standard_pdf/A-4E_prop }
\AddToDocumentProperties [document]{pdfstandard}{A-4E}
}
}
,_pdfstandard / unknown .code:n =
{
\msg_error:nnn{pdf}{unknown-standard}{#1}
}
,testphase .multichoice:
,testphase / latest .code:n =
{
\keys_set:nn
\keys_set:nn
{document / metadata}
{testphase={phase-III,title,table,math,firstaid}}
\msg_note:nnn { meta } { testphase-latest-loading }
\msg_note:nnn { meta } { testphase-latest-loading }
{ phase-III,~title,~table,~math,~firstaid }
}
}
,testphase / tagpdf .code:n =
{
\tl_gput_right:Nn\g_@@_testphase_tl
Expand Down Expand Up @@ -562,7 +562,7 @@
{
\RequirePackage{tagpdf-debug}
}
}
}
,debug / uncompress .code:n =
{
\pdf_uncompress:
Expand Down Expand Up @@ -590,14 +590,14 @@
}
\msg_new:nnn { meta } { lang-missing }
{
The~language~has~not~been~set~in~\token_to_str:N
The~language~has~not~been~set~in~\token_to_str:N
\DocumentMetadata.\\Setting~it~to~'#1'~as~fallback.
}
}
\msg_new:nnn { meta } { testphase-latest-loading }
{
Loading~testphase~modules\\
#1
}
}
% \end{macrocode}
%
% \begin{macrocode}
Expand Down

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