Bump to 3.68. Tentative fix for 159 (amsmath).

Author: Javier

README.md

@@ -1,6 +1,4 @@
-## Babel 3.67.2590
-
-(*Development.*)
+## Babel 3.68
 
 This package manages culturally-determined typographical (and other)
 rules, and hyphenation patterns for a wide range of languages. Many
@@ -10,9 +8,9 @@ is a set of ini files for about 250 languages.
 
 The latest stable version is available on <https://ctan.org/pkg/babel>.
 
-Changes in version 3.67 are described in:
+Changes in version 3.68 are described in:
 
-https://latex3.github.io/babel/news/whats-new-in-babel-3.67.html
+https://latex3.github.io/babel/news/whats-new-in-babel-3.68.html
 
 Apart from the manual, you can find information on some aspects of babel at:
 
@@ -48,18 +46,14 @@ respective authors.
 
 ### Summary of Latest changes
 ```
-3.68   2021-12-?? (dev)
+3.68   2021-12-28
        * Fixes:
          - Assamese, Bengali, Gujarati set incorrectly prehyphenchar.
          - The syntax provide=* didn’t work with Hebrew and a few other
            languages.
          - Wrong equation direction in first column in array and tabular
            environment (#158).
-           
-3.67   2021-11-29
-       * \IfBabelSelectorTF executes code conditionally based on the
-         selector type (select, foreign, etc.).
-       * Transforms can be turned on and off based on Lua attributes.
+         - Tentative fixes for labels in displayed math (#159).
 ```
 
 ### Previous changes

babel.dtx

@@ -32,7 +32,7 @@
 %
 % \iffalse
 %<*filedriver>
-\ProvidesFile{babel.dtx}[2021/12/18 v3.67.2590 The Babel package]
+\ProvidesFile{babel.dtx}[2021/12/28 v3.68 The Babel package]
 \documentclass{ltxdoc}
 \GetFileInfo{babel.dtx}
 \usepackage{fontspec}
@@ -5118,8 +5118,8 @@ help from Bernd Raichle, for which I am grateful.
 % \section{Tools}
 %
 %    \begin{macrocode}
-%<<version=3.67.2590>>
-%<<date=2021/12/18>>
+%<<version=3.68>>
+%<<date=2021/12/28>>
 %    \end{macrocode}
 %
 % \textbf{Do not use the following macros in \texttt{ldf} files. They
@@ -5196,10 +5196,11 @@ help from Bernd Raichle, for which I am grateful.
 %
 %   Now, just syntactical sugar, but it makes partial expansion of
 %   some code a lot more simple and readable. Here |\\| stands for
-%   |\noexpand| and |\<..>| for |\noexpand| applied to a built macro
-%   name (the latter does not define the macro if undefined to
-%   |\relax|, because it is created locally). The result may be
-%   followed by extra arguments, if necessary.
+%   |\noexpand|, |\<..>| for |\noexpand| applied to a built macro
+%   name (which does not define the macro if undefined to
+%   |\relax|, because it is created locally), and |\[..]| for one-level
+%   expansion (where |..| is the macro name without the backslash). The
+%   result may be followed by extra arguments, if necessary.
 %
 %    \begin{macrocode}
 \def\bbl@exp#1{%
@@ -14482,6 +14483,10 @@ end
   \frozen@everydisplay\expandafter{%
     \expandafter\bbl@mathboxdir\the\frozen@everydisplay}
 \fi
+\def\bbl@truellap{%s
+  \ifcase\bbl@attr@dir\expandafter\llap\else\expandafter\rlap\fi}
+\def\bbl@truerlap{%
+  \ifcase\bbl@attr@dir\expandafter\rlap\else\expandafter\llap\fi}
 %    \end{macrocode}
 %
 % \subsection{Layout}
@@ -14509,11 +14514,37 @@ end
 %
 %    \begin{macrocode}
 \bbl@trace{Redefinitions for bidi layout}
+\AtBeginDocument{% amsmath
+  \ifx\place@tag\@undefined\else
+    \bbl@sreplace\place@tag{\llap}{\bbl@truellap}%
+    \bbl@sreplace\place@tag@gather{\llap}{\bbl@truellap}%
+    \bbl@sreplace\place@tag{\rlap}{\bbl@truerlap}%
+    \bbl@sreplace\place@tag@gather{\rlap}{\bbl@truerlap}%
+  \fi}
+\ifx\AddToHook\@undefined\else
+  \AddToHook{env/equation/before}{\pardir TLT }{}
+\fi
 \ifx\@eqnnum\@undefined\else
   \ifx\bbl@attr@dir\@undefined\else
-    \edef\@eqnnum{{%
-      \unexpanded{\ifcase\bbl@attr@dir\else\bbl@textdir\@ne\fi}%
-      \unexpanded\expandafter{\@eqnnum}}}
+    \bbl@xin@{,leqno,}{,\@classoptionslist,}%
+    \ifin@
+      \bbl@sreplace\@eqnnum{\rlap}{\bbl@leqno@aux}
+      \def\bbl@leqno@aux#1{%
+        \bbl@truerlap{%
+          \ifcase\bbl@attr@dir
+            #1%
+          \else
+            \bbl@textdir\@ne
+            #1%
+            \hskip-\displaywidth
+          \fi}}
+    \else
+      \bbl@exp{%
+        \def\\\@eqnnum{{%
+          \<ifcase>\\\bbl@attr@dir\<else>\\\bbl@textdir\@ne\<fi>%
+          \\\bbl@ifsamestring{\\\@currenvir}{equation}%
+             {}{\\\bbl@truellap}{\[@eqnnum]}}}}
+    \fi
   \fi
 \fi
 \ifx\bbl@opt@layout\@nnil\endinput\fi  % if no layout

babel.ins

@@ -26,7 +26,7 @@
 %% and covered by LPPL is defined by the unpacking scripts (with
 %% extension .ins) which are part of the distribution.
 %%
-\def\filedate{2021/12/18}
+\def\filedate{2021/12/28}
 \def\batchfile{babel.ins}
 \input docstrip.tex
 

babel.pdf

@@ -30,7 +30,7 @@
 %
 % \iffalse
 %<*dtx>
-\ProvidesFile{bbcompat.dtx}[2021/12/18 v3.67.2590]
+\ProvidesFile{bbcompat.dtx}[2021/12/28 v3.68]
 %</dtx>
 %
 %% File 'bbcompat.dtx'

bbcompat.dtx

@@ -12,8 +12,8 @@
 
 [identification]
 charset = utf8
-version = 1.9
-date = 2021-06-25
+version = 1.10
+date = 2021-12-13
 name.local = অসমীয়া
 name.english = Assamese
 name.babel = assamese

locale/as/babel-as.ini

@@ -11,8 +11,8 @@
 
 [identification]
 charset = utf8
-version = 1.9
-date = 2021-06-25
+version = 1.10
+date = 2021-12-13
 name.local = বাংলা
 name.english = Bangla
 name.babel = bengali

locale/bn/babel-bn.ini

@@ -11,8 +11,8 @@
 
 [identification]
 charset = utf8
-version = 1.8
-date = 2021-06-25
+version = 1.9
+date = 2021-12-13
 name.local = ગુજરાતી
 name.english = Gujarati
 name.babel = gujarati