[latex3-commits] [latex3/latex2e] develop: Gh1128 (#1129) (1c6092c1)

github at latex-project.org github at latex-project.org
Sun Oct 29 17:57:37 CET 2023 

Repository : https://github.com/latex3/latex2e
On branch  : develop
Link       : https://github.com/latex3/latex2e/commit/1c6092c13a9afd3e98219d92ee7760a148493d97

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

commit 1c6092c13a9afd3e98219d92ee7760a148493d97
Author: Ulrike Fischer <news3 at nililand.de>
Date:   Sun Oct 29 17:57:37 2023 +0100

    Gh1128 (#1129)
    
    * use everypar for strut in \LT at startpbox, issue #1128
    
    * update test
    
    * add newline
    
    ---------
    
    Co-authored-by: Ulrike Fischer <fischer at troubleshooting-tex.de>
    Co-authored-by: Frank Mittelbach <frank.mittelbach at latex-project.org>


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

1c6092c13a9afd3e98219d92ee7760a148493d97
 base/doc/ltnews38.tex                          |  20 +++-
 required/tools/changes.txt                     |   5 +
 required/tools/longtable.dtx                   |   8 +-
 required/tools/testfiles/github-0100.lvt       |   4 +-
 required/tools/testfiles/github-0100.tlg       |  75 ++++---------
 required/tools/testfiles/github-0100.xetex.tlg |  75 ++++---------
 required/tools/testfiles/github-1128.lvt       |  16 +++
 required/tools/testfiles/github-1128.tlg       | 146 +++++++++++++++++++++++++
 8 files changed, 234 insertions(+), 115 deletions(-)

diff --git a/base/doc/ltnews38.tex b/base/doc/ltnews38.tex
index c5dd75a5..b00ae8a6 100644
--- a/base/doc/ltnews38.tex
+++ b/base/doc/ltnews38.tex
@@ -448,7 +448,7 @@ document level: this will be examined based on feedback on the
 utility of the programming layer change.
 
 
-\section{\emph{Removed} commands}
+\section{\emph{Removed} kernel commands}
 
 It is very rare that commands are removed from the \LaTeX{} kernel. However, in
 this release we have elected to remove \cs{GetDocumentCommandArgSpec},
@@ -458,16 +458,26 @@ moved back to the \enquote{stub} \pkg{xparse} provided in \pkg{l3packages}. The
 reason for this change is that the removed commands exposed implementation
 details. They were essentially debugging tools which with hindsight should
 not have been made available directly in the kernel.
+
+
 % \section{Bug fixes}
 
-%\section{Changes to packages in the \pkg{amsmath} category}
 
-%\section{Changes to packages in the \pkg{graphics} category}
+\section{Changes to packages in the \pkg{tools} category}
 
-%\section{Changes to packages in the \pkg{tools} category}
+\subsection{\pkg{longtable}: correct p-column definition}
 
+In general the \pkg{longtable} implementation follows the \pkg{array}
+usage but the package didn't take over a change made 1992 in
+\pkg{array} which adjusted the handling of the strut inserted at the
+begin of p-columns. As a consequence there are a number of
+inconsistencies in the output of p-columns between \pkg{tabular} and
+\pkg{longtable}. This has been corrected, \pkg{longtable} uses now for
+the strut the same definition as \pkg{array}.
+%
+\githubissue{1128}
 
-%\medskip
+\medskip
 
 \begin{thebibliography}{9}
 
diff --git a/required/tools/changes.txt b/required/tools/changes.txt
index 74318d41..f944fd82 100644
--- a/required/tools/changes.txt
+++ b/required/tools/changes.txt
@@ -9,6 +9,11 @@ are not part of the distribution.
 All changes above are only part of the development branch for the next release.
 ================================================================================
 
+2023-08-25  Ulrike Fischer  <Ulrike.Fischer at latex-project.org>
+
+	* longtable.dtx: use \everypar to insert the strut in \LT at startpbox 
+      to match the array use, github/1128 
+
 #########################
 # 2023-06-01 Release
 #########################
diff --git a/required/tools/longtable.dtx b/required/tools/longtable.dtx
index 1bcf8659..5fb6364e 100644
--- a/required/tools/longtable.dtx
+++ b/required/tools/longtable.dtx
@@ -37,7 +37,7 @@
 %<driver> \ProvidesFile{longtable.drv}
 % \fi
 %         \ProvidesFile{longtable.dtx}
-          [2023-07-08 v4.17 Multi-page Table package (DPC)]
+          [2025-10-25 v4.18 Multi-page Table package (DPC)]
 %
 % \iffalse
 %<*driver>
@@ -2206,12 +2206,16 @@
   \bgroup
 %    \end{macrocode}
 % \changes{v4.12}{2019/02/06}{Color group to match array package}
+% \changes{v4.18}{2023/08/25}{Use \cs{everypar} to match array package, github 1128}% 
 %    \begin{macrocode}
     \color at begingroup
     \let\@footnotetext\LT at p@ftntext
     \setlength\hsize{#1}%
     \@arrayparboxrestore
-    \vrule \@height \ht\@arstrutbox \@width \z@}
+    \everypar{%
+      \vrule \@height \ht\@arstrutbox \@width \z@
+      \everypar{}}%    
+    }
 %    \end{macrocode}
 % \end{macro}
 %
diff --git a/required/tools/testfiles/github-0100.lvt b/required/tools/testfiles/github-0100.lvt
index 711000f9..77317d8b 100644
--- a/required/tools/testfiles/github-0100.lvt
+++ b/required/tools/testfiles/github-0100.lvt
@@ -36,12 +36,12 @@ Note that text afterwards is still black
 
 \vspace{6ex}
 
-Problem: longtable,1st column is fixed width and should be blue
+Fine: longtable,1st column is fixed width and should be blue
 \begin{longtable}{>{\color{blue}}m{2.5cm} c }\endhead
 one & two \\
 three & four \\
 \end{longtable}
-Note that the text in all the columns, and the text afterwards, is blue!
+Note that text afterwards is still black
 
 \end{document}
 
diff --git a/required/tools/testfiles/github-0100.tlg b/required/tools/testfiles/github-0100.tlg
index b86c0711..65706d15 100644
--- a/required/tools/testfiles/github-0100.tlg
+++ b/required/tools/testfiles/github-0100.tlg
@@ -417,15 +417,12 @@ Completed box being shipped out [1]
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-...\hbox(6.94444+1.94444)x345.0, glue set 46.33275fil
+...\hbox(6.94444+1.94444)x345.0, glue set 63.86057fil
 ....\hbox(0.0+0.0)x15.0
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 ....\OT1/cmr/m/n/10 :
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-....\glue 3.33333 plus 2.08331 minus 0.88889
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diff --git a/required/tools/testfiles/github-0100.xetex.tlg b/required/tools/testfiles/github-0100.xetex.tlg
index ad798015..bbf436b8 100644
--- a/required/tools/testfiles/github-0100.xetex.tlg
+++ b/required/tools/testfiles/github-0100.xetex.tlg
@@ -410,15 +410,12 @@ Completed box being shipped out [1]
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+....\OT1/cmr/m/n/10 F
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@@ -525,10 +524,12 @@ Completed box being shipped out [1]
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diff --git a/required/tools/testfiles/github-1128.lvt b/required/tools/testfiles/github-1128.lvt
new file mode 100644
index 00000000..9bf3d404
--- /dev/null
+++ b/required/tools/testfiles/github-1128.lvt
@@ -0,0 +1,16 @@
+\documentclass{article}
+\input{regression-test}
+\usepackage{longtable,array}
+\begin{document}
+\START \showoutput
+\begin{tabular}{lp{1cm}}
+\hline 
+some text & \medskip xxx
+\end{tabular}
+
+\begin{longtable}{lp{1cm}}
+\hline 
+some text & \medskip xxx
+\end{longtable}
+
+\end{document}
diff --git a/required/tools/testfiles/github-1128.tlg b/required/tools/testfiles/github-1128.tlg
new file mode 100644
index 00000000..c790011b
--- /dev/null
+++ b/required/tools/testfiles/github-1128.tlg
@@ -0,0 +1,146 @@
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+Don't change this file in any respect.
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