[latex3-commits] [latex3/latex2e] latex-lab/uf-review-05: move text content to socket (9eea726a)

[github at latex-project.org]

Repository : https://github.com/latex3/latex2e
On branch  : latex-lab/uf-review-05
Link       : https://github.com/latex3/latex2e/commit/9eea726a96cd3ffe1222d960361893ab1758191e

>---------------------------------------------------------------

commit 9eea726a96cd3ffe1222d960361893ab1758191e
Author: Ulrike Fischer <fischer at troubleshooting-tex.de>
Date:   Tue Nov 21 16:25:04 2023 +0100

    move text content to socket


>---------------------------------------------------------------

9eea726a96cd3ffe1222d960361893ab1758191e
 required/latex-lab/latex-lab-math.dtx | 67 ++++++++++++++++++++++++++++-------
 1 file changed, 54 insertions(+), 13 deletions(-)

diff --git a/required/latex-lab/latex-lab-math.dtx b/required/latex-lab/latex-lab-math.dtx
index a21c7670..2e1f5e18 100644
--- a/required/latex-lab/latex-lab-math.dtx
+++ b/required/latex-lab/latex-lab-math.dtx
@@ -383,8 +383,58 @@
 %    \end{macrocode}
 % \end{variable}
 %
+% \begin{variable}{\l_@@_mathcontent_alt_tl,
+%  \l_@@_mathcontent_actual_tl,
+%  \l_@@_mathcontent_AF_tl}
+% Temporary variables to hold math content that should 
+% be used in actual or alt text and stored as AF. 
+%    \begin{macrocode}
+\tl_new:N \l_@@_mathcontent_alt_tl
+\tl_new:N \l_@@_mathcontent_actual_tl
+\tl_new:N \l_@@_mathcontent_AF_source_tl
+\tl_new:N \l_@@_mathcontent_AF_mathml_tl
+%    \end{macrocode}
+% \end{variable}
+% 
 % \subsection{Sockets}
 % 
+% \begin{socketdecl}{tagsupport/math/content}
+% The math content is stored in associated files and used for 
+% actual and alternative text. As the exact text is still
+% unclear we use a socket to be able to test variants.
+% The socket should set all four tl vars above, if needed
+% to identical values. It can use the two variables 
+% \cs{g_@@_grabbed_env_tl} and \cs{g_@@_grabbed_math_tl}
+%    \begin{macrocode}
+\socket_new:nn {tagsupport/math/content}{0}
+%    \end{macrocode}
+% \end{socketdecl}
+% 
+% \begin{plugdecl}{actual+source}
+% TODO: think about some naming convention ...
+%    \begin{macrocode}
+\socket_new_plug:nnn
+  {tagsupport/math/content}
+  {actual+source}
+  {
+   \tl_set:Ne\l_@@_mathcontent_actual_tl
+    {
+       LaTeX~ formula~ starts~
+       \exp_not:N\begin{\g_@@_grabbed_env_tl}
+       \c_space_tl
+       \exp_not:V\g_@@_grabbed_math_tl
+       \c_space_tl
+       \exp_not:N\end{\g_@@_grabbed_env_tl}
+       \c_space_tl LaTeX~ formula~ ends~
+   }   
+   \tl_set_eq:NN \l_@@_mathcontent_AF_source_tl \l_@@_mathcontent_actual_tl
+   \tl_set:Nn    \l_@@_mathcontent_AF_mathml_tl {}
+   \tl_set:Nn    \l_@@_mathcontent_AF_alt_tl    {}
+  }
+\socket_assign_plug:nn {tagsupport/math/content}{actual+source}  
+%    \end{macrocode}
+% \end{plugdecl}   
+% 
 % \begin{socketdecl}{tagsupport/math/inline/begin,
 %                    tagsupport/math/inline/end,
 %                    tagsupport/math/inline/formula/begin,
@@ -991,21 +1041,12 @@
 \def\@kernel at math@begin {
 %  \typeout{==>~math~begin}
 % needs different handling if we support nesting
-  \tl_gset:Ne\tmpmathcontent
-     {
-       LaTeX~ formula~ starts~
-       \exp_not:N\begin{\g_@@_grabbed_env_tl}
-       \space
-       \exp_not:V\g_@@_grabbed_math_tl
-       \space
-       \exp_not:N\end{\g_@@_grabbed_env_tl}
-       \space LaTeX~ formula~ ends~
-    }
+  \socket_use:n{tagsupport/math/content}
   \tagstructbegin{tag=Formula,
-    AFinline-o=\tmpmathcontent,
+    AFinline-o=\l_@@_mathcontent_AF_source_tl,
     title-o=\g_@@_grabbed_env_tl,
-    actualtext=\tmpmathcontent
-%    alt=\tmpmathcontent
+    actualtext=\l_@@_mathcontent_actual_tl,
+    alt=\l_@@_mathcontent_alt_tl
   }
 % inner formula if multiple parts (not really implemented yet)
   \grabaformulapartandstart