Cover eqnarray

latex3 · Dec 11, 2022 · 54069eb · 54069eb
1 parent 74949bb
commit 54069eb
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diff --git a/required/latex-lab/latex-lab-mathcapture.dtx b/required/latex-lab/latex-lab-mathcapture.dtx
@@ -340,6 +340,25 @@
 % \end{macro}
 % \end{macro}
 %
+% \begin{macro}{\eqnarray, \@@_eqnarray_begin:}
+% \begin{macro}{\endeqnarray, \@@_eqnarray_end:}
+%   We need to cover this even though it is of course not encouraged.
+%    \begin{macrocode}
+\cs_new_eq:NN \@@_eqnarray_begin: \eqnarray
+\cs_new_eq:NN \@@_eqnarray_end: \endeqnarray
+\RenewDocumentEnvironment { eqnarray } { b }
+  {
+    \bool_set_true:N \l_@@_collected_bool
+    \@@_process:n {#1}
+    \@@_eqnarray_begin:
+    #1
+    \@@_eqnarray_end:
+  }
+  { }
+%    \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
 % Places where math mode is (ab)used.
 %    \begin{macrocode}
 \clist_map_inline:nn

diff --git a/required/latex-lab/testfiles/mathcapture-001.lvt b/required/latex-lab/testfiles/mathcapture-001.lvt
@@ -50,4 +50,11 @@ Try $g_{\hbox{foo$b$}}$
 
 Some text \ensuremath{\alpha}.
 
+Oh no!
+\begin{eqnarray}
+  a = b \\
+  c = d
+\end{eqnarray}
+Argh.
+
 \END
diff --git a/required/latex-lab/testfiles/mathcapture-001.tlg b/required/latex-lab/testfiles/mathcapture-001.tlg
@@ -5,3 +5,4 @@ y = mx + c
 y = mx + c \hskip 1em\relax \hbox {for all $c$}
 g_{\hbox {foo$b$}}
 \alpha 
+a = b \\ c = d