[latex3-commits] [latex3/latex2e] latex-lab/uf-review-05: option to activate /Alt with mathml-AF (142c884d)

[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/142c884d0ee7a65ffaf68a44bc9958f6c220a0e9

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

commit 142c884d0ee7a65ffaf68a44bc9958f6c220a0e9
Author: Ulrike Fischer <fischer at troubleshooting-tex.de>
Date:   Thu Jan 25 18:02:41 2024 +0100

    option to activate /Alt with mathml-AF


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

142c884d0ee7a65ffaf68a44bc9958f6c220a0e9
 required/latex-lab/latex-lab-math.dtx | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/required/latex-lab/latex-lab-math.dtx b/required/latex-lab/latex-lab-math.dtx
index f9a0ea95..802ba543 100644
--- a/required/latex-lab/latex-lab-math.dtx
+++ b/required/latex-lab/latex-lab-math.dtx
@@ -582,7 +582,8 @@
 %   \l__tag_math_texsource_panel_bool,
 %   \l__tag_math_mathml_AF_bool,
 %   \g__tag_math_mathml_AF_bool,
-%   \l__tag_math_mathml_panel_bool
+%   \l__tag_math_mathml_panel_bool,
+%   \l__tag_math_alt_bool
 % }
 %    \begin{macrocode}
 \bool_new:N\l__tag_math_texsource_AF_bool
@@ -590,6 +591,7 @@
 \bool_new:N\l__tag_math_mathml_AF_bool
 \bool_new:N\g__tag_math_mathml_AF_bool
 \bool_new:N\l__tag_math_mathml_panel_bool
+\bool_new:N\l__tag_math_alt_bool
 %    \end{macrocode}
 % \end{variable}
 % 
@@ -833,6 +835,7 @@
    mathml/panel    .bool_set:N = \l__tag_math_mathml_panel_bool,
    mathml/panel    .initial:n = true,
    texsource/panel .bool_set:N = \l__tag_math_texsource_panel_bool, 
+   mathml/alt      .bool_set:N = \l__tag_math_alt_bool
   } 
 %    \end{macrocode}
 %
@@ -1099,7 +1102,8 @@
 % It is activated if a mathml.xml has been found and loaded. 
 % Additionally it also sets an attribute 
 % (this can perhaps be done by default anyway.)
-% As it disturbs the reading of the AF it deactivates the /Alt key.
+% As it disturbs the reading of the AF it currently deactivates the /Alt key,
+% unless it has been reenabled with |math-tagging={mathml/alt=true}| 
 %    \begin{macrocode}
 \cs_generate_variant:Nn \str_mdfive_hash:n {o}
 \tl_new:N\l_@@_content_hash_tl
@@ -1125,6 +1129,8 @@
      {
        \tl_set:Nn\l_@@_attribute_class_tl{display}
      }
+   \bool_if:NF\l__tag_math_alt_bool
+     { \tl_set:Nn \l_@@_content_alt_tl{} }  
 %    \end{macrocode}
 % debugging option. TODO: hide in debug key.
 %    \begin{macrocode}
@@ -1145,6 +1151,7 @@
         \cs_if_exist_use:c {g__math_mathml_ \l_@@_content_hash_tl _tl},
        texsource   = \l_@@_content_AF_source_tl, % should be after mathml AF!
        title-o     = \g_@@_grabbed_env_tl,    %
+       alt         = \l_@@_content_alt_tl
      }
    }
 %    \end{macrocode}