[latex3-commits] [latex3/latex2e] testmergearray: add preliminary support for fakemath in tabular (e107e806)

[github at latex-project.org]

Repository : https://github.com/latex3/latex2e
On branch  : testmergearray
Link       : https://github.com/latex3/latex2e/commit/e107e8066b89296113f0a008c4b126e3196982dd

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

commit e107e8066b89296113f0a008c4b126e3196982dd
Author: Ulrike Fischer <fischer at troubleshooting-tex.de>
Date:   Thu Dec 14 19:37:45 2023 +0100

    add preliminary support for fakemath in tabular


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

e107e8066b89296113f0a008c4b126e3196982dd
 required/latex-lab/latex-lab-math.dtx | 11 +++++++++++
 required/tools/array.dtx              |  9 ++++++++-
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/required/latex-lab/latex-lab-math.dtx b/required/latex-lab/latex-lab-math.dtx
index cc79fb3d..6a699392 100644
--- a/required/latex-lab/latex-lab-math.dtx
+++ b/required/latex-lab/latex-lab-math.dtx
@@ -421,6 +421,17 @@
 %    \end{macrocode}
 % \end{variable}
 % 
+% \begin{macro}{\FakeMathStart,\FakeMathStop}
+% This allows to suppress math grabbing. Currently quite simple minded.
+% But as it currently only needed for a few \$ in tabulars this is perhaps enough. 
+%    \begin{macrocode}
+\providecommand\FakeMathStop{}
+\providecommand\FakeMathStart{}
+\renewcommand\FakeMathStop {\bool_set_false:N  \l_@@_collected_bool }
+\renewcommand\FakeMathStart{\bool_set_true:N \l_@@_collected_bool }
+%    \end{macrocode}
+% \end{macro}
+%
 % \begin{variable}{\l_@@_fakemath_bool}
 %   Tracks whether math mode material has been identified as fake math during
 %   the grabbing phase, which happens currently if the 
diff --git a/required/tools/array.dtx b/required/tools/array.dtx
index 34edbacd..222376c0 100644
--- a/required/tools/array.dtx
+++ b/required/tools/array.dtx
@@ -2725,6 +2725,8 @@ Bug reports can be opened (category \texttt{#1}) at\\%
 % \begin{macro}{\@tabular}
 %    The rest of the job is carried out by the =\@tabular= macro:
 %    \begin{macrocode}
+\providecommand\FakeMathStart{}
+\providecommand\FakeMathStop{}
 \def\@tabular{%
 %    \end{macrocode}
 %    First of all we have to make sure that we start out in
@@ -2745,7 +2747,12 @@ Bug reports can be opened (category \texttt{#1}) at\\%
 %    =\d at llar...=.
 % \changes{v2.0d}{1990/08/20}{`d at llar local to preamble.}
 %    \begin{macrocode}
-  \hbox \bgroup $\col at sep\tabcolsep \let\d at llarbegin\begingroup
+  \hbox \bgroup 
+%    \end{macrocode}
+% The dollar should not start math grabbing. 
+%    \begin{macrocode}
+  \FakeMathStart$\FakeMathStop  
+  \col at sep\tabcolsep \let\d at llarbegin\begingroup
                                     \let\d at llarend\endgroup
 %    \end{macrocode}
 %    Now everything \textsf{tabular} specific is done and we are able to