repair gather*

latex3 · Feb 2, 2025 · f36607f · f36607f
1 parent 6b7095d
commit f36607f
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Showing 2 changed files with 20 additions and 13 deletions.
diff --git a/required/latex-lab/latex-lab-amsmath.dtx b/required/latex-lab/latex-lab-amsmath.dtx
@@ -107,7 +107,7 @@
    }
 %    \end{macrocode}
 %
-% \subsubsection{gather}
+% \subsubsection{\texttt{gather} and \texttt{gather*}}
 %
 %    \begin{macrocode}
     \def\gather@#1{%
@@ -154,8 +154,26 @@
       \egroup
       $$
       \ignorespacesafterend
-    }
+    }    
+%    \end{macrocode}
+%
+%    \begin{macrocode}
+    \renewenvironment{gather*}
+     {%
+       \start@gather\st@rredtrue
+     }
+     {
+        \math@cr 
+        \black@\totwidth@ 
+        \UseExpandableTaggingSocket{math/luamml/mtable/finalize} {gather}
+      \egroup
+      $$\ignorespacesafterend
+     }
+%    \end{macrocode}
+% Register both environments
+%    \begin{macrocode}
    \math_register_halign_env:nn {gather}{}
+   \math_register_halign_env:nn {gather*}{}
 %    \end{macrocode}
 %
 %

diff --git a/required/latex-lab/latex-lab-math.dtx b/required/latex-lab/latex-lab-math.dtx
@@ -2704,16 +2704,6 @@
 %    \begin{macrocode}
 \tl_gput_right:Nn \@kernel@before@begindocument {
 %
-\renewenvironment{gather*}{%
-  \start@gather\st@rredtrue
-}
-{%
-% this redirection doesn't work if we alter "gather"!
-  %  \endgather
-% so replace it with its real meaning
-  \math@cr \black@\totwidth@ \egroup
-  $$\ignorespacesafterend
-}
 %    \end{macrocode}
 %
 %    \begin{macrocode}
@@ -2797,7 +2787,6 @@
   \math_register_halign_env:nn {alignat*}{}
   \math_register_halign_env:nn {flalign}{}
   \math_register_halign_env:nn {flalign*}{}
-  \math_register_halign_env:nn {gather*}{}
   \math_register_halign_env:nn {multline}{}
   \math_register_halign_env:nn {multline*}{}
   \math_register_halign_env:nn {xalignat}{}