[latex3-commits] [git/LaTeX3-latex3-latex2e] gh716: adding a ßrelax for #716 (4eb3631d)

Frank Mittelbach frank.mittelbach at latex-project.org
Thu Feb 3 19:15:46 CET 2022


Repository : https://github.com/latex3/latex2e
On branch  : gh716
Link       : https://github.com/latex3/latex2e/commit/4eb3631dc604cba59f80ea0d64b4a91df484d6d6

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

commit 4eb3631dc604cba59f80ea0d64b4a91df484d6d6
Author: Frank Mittelbach <frank.mittelbach at latex-project.org>
Date:   Thu Feb 3 19:15:46 2022 +0100

    adding a ßrelax for #716


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

4eb3631dc604cba59f80ea0d64b4a91df484d6d6
 base/doc/ltnews35.tex                              |  10 +-
 required/amsmath/amsmath.dtx                       |  12 +-
 required/amsmath/changes.txt                       |   5 +
 .../testfiles/github-amsmath-0716.luatex.tlg       | 227 +++++++++++++++++++++
 required/amsmath/testfiles/github-amsmath-0716.lvt |  28 +++
 required/amsmath/testfiles/github-amsmath-0716.tlg | 222 ++++++++++++++++++++
 6 files changed, 499 insertions(+), 5 deletions(-)

diff --git a/base/doc/ltnews35.tex b/base/doc/ltnews35.tex
index e798d4c2..cb1449f9 100644
--- a/base/doc/ltnews35.tex
+++ b/base/doc/ltnews35.tex
@@ -528,9 +528,15 @@ after loading the package.
 %
 \githubissue{734}
 
-\subsection{???}
+\subsection{\pkg{amsmath} Error in \cs{shoveleft}}
+
+If \cs{shoveleft} started out with the words \enquote{plus} or
+\enquote{minus} is was misunderstood as part of a rubber length and
+led either to an error or was swallowed without trace.  By adding a
+\cs{relax} this errornous scanning into the argument of \cs{shoveleft}
+is now prevented.
 %
-\githubissue{???}
+\githubissue{714}
 
 
 \section{Changes to packages in the \pkg{graphics} category}
diff --git a/required/amsmath/amsmath.dtx b/required/amsmath/amsmath.dtx
index d810e921..318fcdd9 100644
--- a/required/amsmath/amsmath.dtx
+++ b/required/amsmath/amsmath.dtx
@@ -86,7 +86,7 @@ Bug reports can be opened (category \texttt{#1}) at\\%
 %    \end{macrocode}
 %
 %    \begin{macrocode}
-\ProvidesPackage{amsmath}[2021/10/15 v2.17l AMS math features]
+\ProvidesPackage{amsmath}[2022/02/03 v2.17m AMS math features]
 %    \end{macrocode}
 %
 % \section{Catcode defenses}
@@ -6173,7 +6173,10 @@ Cannot use `split' here;\MessageBreak trying to recover with `aligned'}%
                 \hskip\multlinegap
             \fi
             \hskip.5\wd\@ne
-            \hskip-.5\wdz@
+%    \end{macrocode}
+% \changes{v2.17m}{2022/02/03}{Added missing \cs{relax} for (gh/716)}
+%    \begin{macrocode}
+            \hskip-.5\wdz@ \relax
             #1%
         }
     \else
@@ -6183,7 +6186,10 @@ Cannot use `split' here;\MessageBreak trying to recover with `aligned'}%
             \hfilneg
             \hskip\multlinegap
             \hskip.5\wd\@ne
-            \hskip-.5\wdz@
+%    \end{macrocode}
+% \changes{v2.17m}{2022/02/03}{Added missing \cs{relax} for (gh/716)}
+%    \begin{macrocode}
+            \hskip-.5\wdz@ \relax
             #1%
         }
     \fi
diff --git a/required/amsmath/changes.txt b/required/amsmath/changes.txt
index 7c5723b8..0d3ed94a 100644
--- a/required/amsmath/changes.txt
+++ b/required/amsmath/changes.txt
@@ -1,3 +1,8 @@
+2022-02-03  Frank Mittelbach  <Frank.Mittelbach at latex-project.org>
+
+	* amsmath.dtx (subsection{The \env{multline} environment}):
+	Added missing \relax for (gh/716)
+
 2022-01-20  Frank Mittelbach  <Frank.Mittelbach at latex-project.org>
 
 	* amsopn.dtx:
diff --git a/required/amsmath/testfiles/github-amsmath-0716.luatex.tlg b/required/amsmath/testfiles/github-amsmath-0716.luatex.tlg
new file mode 100644
index 00000000..70512214
--- /dev/null
+++ b/required/amsmath/testfiles/github-amsmath-0716.luatex.tlg
@@ -0,0 +1,227 @@
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diff --git a/required/amsmath/testfiles/github-amsmath-0716.lvt b/required/amsmath/testfiles/github-amsmath-0716.lvt
new file mode 100644
index 00000000..13c21c09
--- /dev/null
+++ b/required/amsmath/testfiles/github-amsmath-0716.lvt
@@ -0,0 +1,28 @@
+% test for git #716
+
+\documentclass{article}
+
+
+\usepackage{amsmath}
+
+\input{test2e}
+
+\newcommand*\extrastuff{plus 5cm minus 2in }
+
+\showoutput
+
+\begin{document}
+
+\START
+
+\begin{multline}
+ABCDEFG\\
+\shoveleft{plus 5cm minus 2in swallowed}\\
+\shoveleft{\extrastuff expanded\ and\ swallowed}\\
+=ABCDEFG
+\end{multline}
+
+\newpage
+\OMIT
+\end{document}
+
diff --git a/required/amsmath/testfiles/github-amsmath-0716.tlg b/required/amsmath/testfiles/github-amsmath-0716.tlg
new file mode 100644
index 00000000..6af93574
--- /dev/null
+++ b/required/amsmath/testfiles/github-amsmath-0716.tlg
@@ -0,0 +1,222 @@
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