[latex3-commits] [git/LaTeX3-latex3-babel] main: Optimize language stack. No errors with unknown languages in aux. (d60a2c2)

[Javier]

Repository : https://github.com/latex3/babel
On branch  : main
Link       : https://github.com/latex3/babel/commit/d60a2c255239c7e787b089e61b56c3b92c24fdc0

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

commit d60a2c255239c7e787b089e61b56c3b92c24fdc0
Author: Javier <email at localhost>
Date:   Wed Jun 30 19:03:47 2021 +0200

    Optimize language stack. No errors with unknown languages in aux.


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

d60a2c255239c7e787b089e61b56c3b92c24fdc0
 README.md    |   5 ++++-
 babel.dtx    |  43 ++++++++++++++++++++++++++++++-------------
 babel.ins    |   2 +-
 babel.pdf    | Bin 846875 -> 847339 bytes
 bbcompat.dtx |   2 +-
 5 files changed, 36 insertions(+), 16 deletions(-)

diff --git a/README.md b/README.md
index 0d63b0d..9150416 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-## Babel 3.61
+## Babel 3.61.2419
 
 This package manages culturally-determined typographical (and other)
 rules, and hyphenation patterns for a wide range of languages. Many
@@ -46,6 +46,9 @@ respective authors.
 
 ### Summary of Latest changes
 ```
+3.62   2021-??-??
+       * No errors with undefined languages in aux file.
+       
 3.61   2021-06-28
        * Improved justification=kashida/elongated: hboxes (lua).
        * Transform danda.nobreak for several Indic scripts (lua):
diff --git a/babel.dtx b/babel.dtx
index b6aea49..586232b 100644
--- a/babel.dtx
+++ b/babel.dtx
@@ -32,7 +32,7 @@
 %
 % \iffalse
 %<*filedriver>
-\ProvidesFile{babel.dtx}[2021/06/28 v3.61 The Babel package]
+\ProvidesFile{babel.dtx}[2021/06/30 v3.61.2419 The Babel package]
 \documentclass{ltxdoc}
 \GetFileInfo{babel.dtx}
 \usepackage{fontspec}
@@ -936,6 +936,12 @@ If you do not need shorthands, or prefer an alternative approach of
 your own, you may want to switch them off with the package option
 |shorthands=off|, as described below.
 
+\begin{warning}
+  It is worth emphasizing these macros are meant for temporary changes.
+  Whenever possible and if there are not conflicts with other packages,
+  shorthands must be always enabled (or disabled).
+\end{warning}
+
 \Describe{\useshorthands}{%
 \colorbox{thegrey}{\ttfamily\hskip-.2em*\hskip-.2em}%
 \marg{char}}
@@ -3951,7 +3957,8 @@ direction with |bidi.text|).
 \item \verb|\bibitem| is out of sync with \verb|\selectlanguage| in
   the \file{.aux} file. The reason is \verb|\bibitem| uses
   \verb|\immediate| (and others, in fact), while
-  \verb|\selectlanguage| doesn't. There is no known workaround.
+  \verb|\selectlanguage| doesn't. There is a similar issue with floats,
+  too. There is no known workaround.
 \item Babel does not take into account |\normalsfcodes| and
   (non-)French spacing is not always properly (un)set by
   languages. However, problems are unlikely to happen and therefore
@@ -4973,8 +4980,8 @@ help from Bernd Raichle, for which I am grateful.
 % \section{Tools}
 %
 %    \begin{macrocode}
-%<<version=3.61>>
-%<<date=2021/06/28>>
+%<<version=3.61.2419>>
+%<<date=2021/06/30>>
 %    \end{macrocode}
 %
 % \textbf{Do not use the following macros in \texttt{ldf} files. They
@@ -7417,7 +7424,15 @@ help from Bernd Raichle, for which I am grateful.
 %    \begin{macrocode}
 \def\bbl at push@language{%
   \ifx\languagename\@undefined\else
-    \xdef\bbl at language@stack{\languagename+\bbl at language@stack}%
+    \ifx\currentgrouplevel\@undefined
+      \xdef\bbl at language@stack{\languagename+\bbl at language@stack}%
+    \else
+      \ifnum\currentgrouplevel=\z@
+        \xdef\bbl at language@stack{\languagename+}%
+      \else
+        \xdef\bbl at language@stack{\languagename+\bbl at language@stack}%
+      \fi    
+    \fi
   \fi}
 %    \end{macrocode}
 %
@@ -8543,10 +8558,12 @@ help from Bernd Raichle, for which I am grateful.
 %
 %    \begin{macrocode}
 \def\bbl at beforestart{%
+  \def\@nolanerr##1{%
+    \bbl at warning{Undefined language '##1' in aux.\\Reported}}%
   \bbl at usehooks{beforestart}{}%
   \global\let\bbl at beforestart\relax}
 \AtBeginDocument{%
-  \@nameuse{bbl at beforestart}%
+  {\@nameuse{bbl at beforestart}}%  Group!
   \if at filesw
     \providecommand\babel at aux[2]{}%
     \immediate\write\@mainaux{%
@@ -10924,7 +10941,7 @@ help from Bernd Raichle, for which I am grateful.
   \ifx\bbl at KVP@transforms\@nil\else
     \bbl at replace\bbl at KVP@transforms{ }{,}%
   \fi
-  % Load ini
+  % == Load ini ==
   \ifcase\bbl at howloaded
     \bbl at provide@new{#2}%
   \else
@@ -11255,12 +11272,12 @@ help from Bernd Raichle, for which I am grateful.
     \StartBabelCommands*{#1}{captions}%
       \bbl at read@ini{\bbl at KVP@captions}2%   % Here all letters cat = 11
     \EndBabelCommands
- \fi
- \ifx\bbl at KVP@import\@nil\else
-   \StartBabelCommands*{#1}{date}%
-     \bbl at savetoday
-     \bbl at savedate
-   \EndBabelCommands
+  \fi
+  \ifx\bbl at KVP@import\@nil\else
+    \StartBabelCommands*{#1}{date}%
+      \bbl at savetoday
+      \bbl at savedate
+    \EndBabelCommands
   \fi
   % == hyphenrules (also in new) ==
   \ifx\bbl at lbkflag\@empty
diff --git a/babel.ins b/babel.ins
index feea6e0..60f055e 100644
--- a/babel.ins
+++ b/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{2021/06/28}
+\def\filedate{2021/06/30}
 \def\batchfile{babel.ins}
 \input docstrip.tex
 
diff --git a/babel.pdf b/babel.pdf
index 8e3aefc..cc789d9 100644
Binary files a/babel.pdf and b/babel.pdf differ
diff --git a/bbcompat.dtx b/bbcompat.dtx
index 7500615..9c021ec 100644
--- a/bbcompat.dtx
+++ b/bbcompat.dtx
@@ -30,7 +30,7 @@
 %
 % \iffalse
 %<*dtx>
-\ProvidesFile{bbcompat.dtx}[2021/06/28 v3.61]
+\ProvidesFile{bbcompat.dtx}[2021/06/30 v3.61.2419]
 %</dtx>
 %
 %% File 'bbcompat.dtx'