[latex3-commits] [git/LaTeX3-latex3-latex2e] develop: Reclassify [vh]pack_quality callbacks as exclusive (610482ab)

[Marcel Fabian Krüger]

Repository : https://github.com/latex3/latex2e
On branch  : develop
Link       : https://github.com/latex3/latex2e/commit/610482abcae8e36c71a73bc313e0d95b3c50cc46

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

commit 610482abcae8e36c71a73bc313e0d95b3c50cc46
Author: Marcel Fabian Krüger <tex at 2krueger.de>
Date:   Sun Nov 7 03:28:06 2021 +0100

    Reclassify [vh]pack_quality callbacks as exclusive


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

610482abcae8e36c71a73bc313e0d95b3c50cc46
 base/changes.txt      | 5 +++++
 base/doc/ltnews35.tex | 8 ++++++++
 base/ltluatex.dtx     | 8 +++++---
 3 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/base/changes.txt b/base/changes.txt
index d5d2b555..e4391479 100644
--- a/base/changes.txt
+++ b/base/changes.txt
@@ -6,6 +6,11 @@ completeness or accuracy and it contains some references to files that
 are not part of the distribution.
 ================================================================================
 
+2021-11-17  Marcel Krüger  <Marcel.Krueger at latex-project.org>
+
+	* ltluatex.dtx:
+	Classify [hv]pack_quality callbacks as exclusive
+
 ================================================================================
 All changes above are only part of the development branch for the next release.
 ================================================================================
diff --git a/base/doc/ltnews35.tex b/base/doc/ltnews35.tex
index 731c5ee9..b701339a 100644
--- a/base/doc/ltnews35.tex
+++ b/base/doc/ltnews35.tex
@@ -147,6 +147,14 @@
 \section{Code improvements}
 
 
+\subsection{Lua\TeX\ callback improvements}
+
+The Lua\TeX\ callbacks \texttt{hpack\_quality} and \texttt{vpack\_quality} are
+now \texttt{exclusive} and therefore only allow a single handler.
+The previous type \texttt{list} resulted in incorrect parameters when multiple
+handlers were set, therefore this only makes an existing restriction more
+explicit.
+
 \subsection{???}
 %
 \githubissue{???}
diff --git a/base/ltluatex.dtx b/base/ltluatex.dtx
index 258ac482..1f8598ff 100644
--- a/base/ltluatex.dtx
+++ b/base/ltluatex.dtx
@@ -28,7 +28,7 @@
 \ProvidesFile{ltluatex.dtx}
 %</driver>
 %<*tex>
-[2021/10/15 v1.1v
+[2021/11/17 v1.1w
 %</tex>
 %<plain>  LuaTeX support for plain TeX (core)
 %<*tex>
@@ -1351,6 +1351,8 @@ local callbacktypes = callbacktypes or {
 % \changes{v1.1k}{2019/10/02}{mlist\_to\_hlist is \texttt{exclusive}}
 % \changes{v1.1l}{2020/02/02}{post\_linebreak\_filter is \texttt{reverselist}}
 % \changes{v1.1p}{2020/08/01}{new\_graf is \texttt{exclusive}}
+% \changes{v1.1w}{2021/11/17}{hpack\_quality is \texttt{exclusive}}
+% \changes{v1.1w}{2021/11/17}{vpack\_quality is \texttt{exclusive}}
 %    \begin{macrocode}
   contribute_filter      = simple,
   buildpage_filter       = simple,
@@ -1361,8 +1363,8 @@ local callbacktypes = callbacktypes or {
   post_linebreak_filter  = reverselist,
   hpack_filter           = list,
   vpack_filter           = list,
-  hpack_quality          = list,
-  vpack_quality          = list,
+  hpack_quality          = exclusive,
+  vpack_quality          = exclusive,
   pre_output_filter      = list,
   process_rule           = exclusive,
   hyphenate              = simple,