babel (13nov18)

git-svn-id: svn://tug.org/texlive/trunk@49149 c570f23f-e606-0410-a88d-b1316a301751

12 files changed, 187 insertions, 129 deletions

diff --git a/Master/texmf-dist/doc/latex/babel/README.md b/Master/texmf-dist/doc/latex/babel/README.md
index 3a191530b8d..0e99ab68450 100644
--- a/Master/texmf-dist/doc/latex/babel/README.md
+++ b/Master/texmf-dist/doc/latex/babel/README.md
@@ -1,4 +1,4 @@
-## Babel 3.26
+## Babel 3.27
 
 This package manages culturally-determined typographical (and other)
 rules, and hyphenation patterns for a wide range of languages.  Many
@@ -51,6 +51,10 @@ respective authors.
 ### Latest changes
 
 ```
+3.27   - Preliminary support for bidi (by Vafa Khalighi) with xetex.
+       - Fix for 3.23 - \ensureascii was redefined even when not 
+         necessary.
+       - Minor improvements in babel-vi.ini.
 3.26   - Fix for 3.25 - \babelprovide raised an error with xetex. 
 3.25   - Fixes for 3.23 - mapfont=direction could raise an error.
          Language and Script were not always defined correctly.
@@ -115,5 +119,5 @@ respective authors.
 ```
 
 Javier Bezos
-2018/10/16
+2018/11/13
 
diff --git a/Master/texmf-dist/doc/latex/babel/babel.pdf b/Master/texmf-dist/doc/latex/babel/babel.pdf
index f624409eedc..bd66981e68d 100644
--- a/Master/texmf-dist/doc/latex/babel/babel.pdf
+++ b/Master/texmf-dist/doc/latex/babel/babel.pdf
diff --git a/Master/texmf-dist/source/latex/babel/babel.dtx b/Master/texmf-dist/source/latex/babel/babel.dtx
index ab5d8146295..73602cb01aa 100644
--- a/Master/texmf-dist/source/latex/babel/babel.dtx
+++ b/Master/texmf-dist/source/latex/babel/babel.dtx
@@ -31,7 +31,7 @@
 %
 % \iffalse
 %<*filedriver>
-\ProvidesFile{babel.dtx}[2018/10/16 v3.26 The Babel package]
+\ProvidesFile{babel.dtx}[2018/11/13 v3.27 The Babel package]
 \documentclass{ltxdoc}
 \GetFileInfo{babel.dtx}
 \usepackage{fontspec}
@@ -2307,12 +2307,12 @@ bug described in the previous paragraph.
 If non-ASCII encodings are not loaded (or no encoding at all), it is
 no-op (also |\TeX| and |\LaTeX| are not redefined); otherwise,
 |\ensureascii| switches to the encoding at the beginning of the
-document if ASCII-savvy, or else the last ASCII-savvy encoding loaded.
-For example, if you load |LY1,LGR|, then it is set to |LY1|, but if you
-load |LY1,T2A| it is set to |T2A|. The symbol encodings |TS1|, |T3|,
-and |TS3| are not used for ``ordinary'' text, so they should be
-selected with some other encoding, but they are taken into account,
-just in case.
+document if ASCII-savvy, or else the last ASCII-savvy encoding
+loaded. For example, if you load |LY1,LGR|, then it is set to |LY1|,
+but if you load |LY1,T2A| it is set to |T2A|. The symbol encodings
+|TS1|, |T3|, and |TS3| are not taken into account, since they are not
+used for ``ordinary'' text (they are stored in |\BabelNonText|, used
+in some special cases when no Latin encoding is explicitly set).
 
 The foregoing rules (which are applied ``at begin document'') cover
 most of cases. No asumption is made on characters above
@@ -2339,7 +2339,7 @@ differ in the way `weak' numeric characters are ordered (eg, Arabic
   elements, including the |picture| environment and PDF or PS based
   graphics, are not yet correctly handled. Also, indexes and the like 
   are under study, as well as math.
-  
+
   An effort is being made to avoid incompatibilities in the future
   (this one of the reason currently bidi must be explicitly requested
   as a package option, with a certain bidi model, and also the |layout|
@@ -2910,12 +2910,42 @@ chapters), in Hungarian ``from (1)'' is ``(1)-b\H{o}l'', but ``from
 
 \subsection{Tentative and experimental code}
 
+See the code section for |\foreignlanguage*| (a new starred
+version of |\foreignlanguage|).
+
+\medskip
 \textbf{Southeast Asian interword spacing}
 
-There is some preliminary interword spacing for Thai, Lao and Khemer
-in \luatex{} (provided there are hyphenation patters). It is activated
-automatically if a language with of one of these scripts are loaded
-with |\babelprovide|. See the sample on the \babel{} repository.
+There is some preliminary interword spacing for Thai, Lao and Khemer in
+\luatex{} (provided there are hyphenation patters) and \xetex. It is
+activated automatically if a language with one of those scripts are
+loaded with |\babelprovide|. See the sample on the \babel{} repository.
+With both engines, interword spacing is based on the ``current'' em
+unit (the size of the previous char in \luatex{} and the font size set
+by the last |\selectfont| in \xetex).
+
+\medskip
+\textbf{Bidi writing} in \luatex{} is still under development, but the
+basic implementation is finished. On the other hand, in \xetex{} it is
+taking its first steps. The latter engine poses quite different
+challenges. An option to manage document layout in \luatex{} (lists,
+footnotes, etc.) is almost finished, but \xetex{} required more work.
+
+Unfortunately, proper support for \xetex{} requires patching somehow
+lots of macros and packages (and some issues related to |\special|s
+remain, like color and hyperlinks). 
+
+\medskip
+\textbf{bidi=bidi}
+
+\New{3.27} This package option is a new experimental support for bidi
+writing with \xetex{} and the \textsf{bidi} package (by Vafa Khalighi).
+Currently, it just provides the basic direction switches with
+|\selectlanguage| and |\foreignlanguage|. Any help in making \babel{}
+and \textsf{bidi} collaborate will be welcome (although the underlying
+concepts in both packages seem very different).
+
+See the babel repository for a small example (|xe-bidi|).
 
 \medskip
 \textbf{Old stuff}
@@ -2940,19 +2970,6 @@ So, for example:
 \babelFSfeatures{turkish}{Language=Turkish}
 \end{verbatim}
 
-\medskip
-\textbf{Bidi writing} in \luatex{} is under development, but a basic
-implementation is almost finished. On the other hand, in \xetex{} it is
-taking its first steps. The latter engine poses quite different
-challenges. An option to manage document layout in \luatex{} (lists,
-footnotes, etc.) is almost finished, but \xetex{} required more work.
-
-See the code section for |\foreignlanguage*| (a new starred version of
-|\foreignlanguage|).
-
-\xetex{} relies on the font to properly handle these unmarked changes,
-so it is not under the control of \TeX.
-
 \section{Loading languages with \file{language.dat}}
 
 \TeX{} and most engines based on it (pdf\TeX, \xetex, $\epsilon$-\TeX,
@@ -3633,7 +3650,7 @@ set for Turkish:
 \end{verbatim}
 (Note the mapping for |OT1| is not complete.)
 
-\Describe\SetHyphenMap{\marg{to-lower-macros}}
+\Describe{\SetHyphenMap}{\marg{to-lower-macros}}
 \New{3.9g} Case mapping serves in \TeX{} for two unrelated purposes: case
 transforms (upper/lower) and hyphenation. |\SetCase| handles the
 former, while hyphenation is handled by |\SetHyphenMap| and controlled
@@ -3776,7 +3793,7 @@ help from Bernd Raichle, for which I am grateful.
 %  \global\let\check@percent\saved@check@percent
 %\endgroup
 %
-% \part{The code}
+% \part{Source code}
 %
 % \babel{} is being developed incrementally, which means parts of the
 % code are under development and therefore incomplete. Only documented
@@ -3857,8 +3874,8 @@ help from Bernd Raichle, for which I am grateful.
 % \section{Tools}
 %
 %    \begin{macrocode}
-%<<version=3.26>>
-%<<date=2018/10/16>>
+%<<version=3.27>>
+%<<date=2018/11/13>>
 %    \end{macrocode}
 %
 % \textbf{Do not use the following macros in \texttt{ldf} files. They
@@ -8997,18 +9014,18 @@ help from Bernd Raichle, for which I am grateful.
 %
 %    \begin{macrocode}
 \bbl@trace{Encoding and fonts}
-\newcommand\BabelNonASCII
-  {LGR,X2,OT2,OT3,OT6,LHE,LWN,LMA,LMC,LMS,LMU,TS1,T3,TS3}
+\newcommand\BabelNonASCII{LGR,X2,OT2,OT3,OT6,LHE,LWN,LMA,LMC,LMS,LMU}
+\newcommand\BabelNonText{TS1,T3,TS3}
 \let\org@TeX\TeX
 \let\org@LaTeX\LaTeX
 \let\ensureascii\@firstofone
 \AtBeginDocument{%
   \in@false
-  \bbl@foreach\BabelNonASCII{% is there a non-ascii enc?
+  \bbl@foreach\BabelNonASCII{% is there a text non-ascii enc?
     \ifin@\else
       \lowercase{\bbl@xin@{,#1enc.def,}{,\@filelist,}}%
     \fi}%
-  \ifin@ % if a non-ascii has been loaded
+  \ifin@ % if a text non-ascii has been loaded
     \def\ensureascii#1{{\fontencoding{OT1}\selectfont#1}}%
     \DeclareTextCommandDefault{\TeX}{\org@TeX}%
     \DeclareTextCommandDefault{\LaTeX}{\org@LaTeX}%
@@ -9017,7 +9034,7 @@ help from Bernd Raichle, for which I am grateful.
       \ifx\@empty#2\else
         \bbl@ifunset{T@#1}%
           {}%
-          {\bbl@xin@{,#1,}{,\BabelNonASCII,}%
+          {\bbl@xin@{,#1,}{,\BabelNonASCII,\BabelNonText,}%
            \ifin@
              \DeclareTextCommand{\TeX}{#1}{\ensureascii{\org@TeX}}%
              \DeclareTextCommand{\LaTeX}{#1}{\ensureascii{\org@LaTeX}}%
@@ -9026,7 +9043,7 @@ help from Bernd Raichle, for which I am grateful.
            \fi}%
       \fi}%
     \bbl@foreach\@filelist{\bbl@tempb#1\@@}%  TODO - \@@ de mas??
-    \bbl@xin@{,\cf@encoding,}{,\BabelNonASCII,}%
+    \bbl@xin@{,\cf@encoding,}{,\BabelNonASCII,\BabelNonText,}%
     \ifin@\else
       \edef\ensureascii#1{{%
         \noexpand\fontencoding{\cf@encoding}\noexpand\selectfont#1}}%
@@ -9284,6 +9301,18 @@ help from Bernd Raichle, for which I am grateful.
     \newtoks\everypar
     \everypar=\bbl@severypar
     \bbl@severypar{\bbl@xeeverypar\the\everypar}}
+  \@ifpackagewith{babel}{bidi=bidi}%
+    {\let\bbl@textdir@i\@gobbletwo
+     \let\bbl@xebidipar\@empty
+     \AddBabelHook{bidi}{foreign}{%
+       \def\bbl@tempa{\def\BabelText####1}%
+       \ifcase\bbl@thetextdir
+         \expandafter\bbl@tempa\expandafter{\BabelText{\LR{##1}}}%
+       \else
+         \expandafter\bbl@tempa\expandafter{\BabelText{\RL{##1}}}%
+       \fi}
+     \def\bbl@pardir#1{\ifcase#1\relax\setLR\else\setRL\fi}}
+    {}%
 \fi
 %    \end{macrocode}
 %
@@ -10214,7 +10243,7 @@ help from Bernd Raichle, for which I am grateful.
 \def\bbl@tentative{\protect\bbl@tentative@i}
 \def\bbl@tentative@i#1{%
   \bbl@warning{%
-    Some functions in '#1' are tentative.\\%
+    Some functions for '#1' are tentative.\\%
     They might not work as expected and their behavior\\%
     could change in the future.\\%
     Reported}}
@@ -10687,6 +10716,16 @@ help from Bernd Raichle, for which I am grateful.
     \AtEndOfPackage{%
       \EnableBabelHook{babel-bidi}%
       \bbl@xebidipar}}
+  \DeclareOption{bidi=bidi}%
+    {\bbl@tentative{bidi=bidi}%
+     \ifx\RTLfootnotetext\@undefined
+       \AtEndOfPackage{%
+         \EnableBabelHook{babel-bidi}%
+         \ifx\fontspec\@undefined
+           \usepackage{fontspec}% bidi needs fontspec 
+         \fi
+         \usepackage{bidi}}%
+     \fi}
 \fi
 \DeclareOption{bidi=default}%
   {\let\bbl@beforeforeign\leavevmode
@@ -11032,16 +11071,9 @@ help from Bernd Raichle, for which I am grateful.
 %
 % \textit{In progress.}
 %
-% Unfortunately, proper support for \xetex{} requires patching somehow
-% lots of macros and packages (and some issues related to |\special|s
-% remain, like color and hyperlinks). At least at this stage, \babel{}
-% will not do it and therefore a package like \textsf{bidi} (by Vafa
-% Khalighi) would be necessary to overcome the limitations of
-% \xetex. Any help in making \babel{} and \textsf{bidi} collaborate
-% will be welcome, although the underlying concepts in both packages
-% seem very different. Note also elements like headlines and margins
-% can be modified easily with packages like \textsf{fancyhdr},
-% \textsf{typearea} or \textsf{titleps}, and \textsf{geometry}.
+% Note elements like headlines and margins can be modified easily with
+% packages like \textsf{fancyhdr}, \textsf{typearea} or
+% \textsf{titleps}, and \textsf{geometry}.
 %
 % |\bbl@startskip| and |\bbl@endskip| are available to package
 % authors. Thanks to the \TeX{} expansion mechanism the following
@@ -11581,7 +11613,7 @@ help from Bernd Raichle, for which I am grateful.
 %    \end{macrocode}
 %  \end{macro}
 %
-% \section{Southeast Asian scripts}
+% \subsection{Southeast Asian scripts}
 %
 % \changes{babel~3.24}{2018/09/24}{Lua code for interword spacing
 %   in Southeast Asian scripts.}
@@ -11591,8 +11623,8 @@ help from Bernd Raichle, for which I am grateful.
 % sense, because the hyphen and the previous char go always together).
 % Other discretionaries are not touched.
 %
-% For the moment, only 3 SA languages are 
-% activated by default (see Unicode UAX 14).
+% For the moment, only 3 SA languages are activated by default (see
+% Unicode UAX 14).
 %
 %    \begin{macrocode}
 \def\bbl@intraspace#1 #2 #3\@@{%
@@ -11822,7 +11854,7 @@ help from Bernd Raichle, for which I am grateful.
 %</luatex>
 %    \end{macrocode}
 %
-% \subsection{Auto bidi with \texttt{basic-r}}
+% \subsection{Auto bidi with \texttt{basic} and \texttt{basic-r}}
 %
 % \changes{3.14}{2017/09/30}{LuaTeX - support for R/AL texts - basic-r}
 %
@@ -18591,7 +18623,7 @@ function Babel.bidi(head, ispar, hdir)
     end
 
   end
-  
+
   return node.prev(head) or head
 end
 %</basic>
diff --git a/Master/texmf-dist/source/latex/babel/babel.ins b/Master/texmf-dist/source/latex/babel/babel.ins
index aefa4079493..21726acdb0d 100644
--- a/Master/texmf-dist/source/latex/babel/babel.ins
+++ b/Master/texmf-dist/source/latex/babel/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{2018/10/16}
+\def\filedate{2018/11/13}
 \def\batchfile{babel.ins}
 \input docstrip.tex
 
@@ -150,65 +150,64 @@
 \def\compatfile#1{\file{#1.sty}{\from{bbcompat.dtx}{styfile,#1}}}
 
 \generate{%
-          \compatfile{esperanto}
-          \compatfile{afrikaans}
-          \compatfile{dutch}
-          \compatfile{american}
-          \compatfile{british}
-          \compatfile{english}
-          \compatfile{UKenglish}
-          \compatfile{USenglish}
-          \compatfile{germanb}
-          \compatfile{austrian}
-          \compatfile{ngermanb}
-          \compatfile{naustrian}
-          \compatfile{irish}
-          \compatfile{scottish}
-          \compatfile{welsh}
-          \compatfile{breton}
-          }
+         \compatfile{esperanto}
+         \compatfile{afrikaans}
+         \compatfile{dutch}
+         \compatfile{american}
+         \compatfile{british}
+         \compatfile{english}
+         \compatfile{UKenglish}
+         \compatfile{USenglish}
+         \compatfile{germanb}
+         \compatfile{austrian}
+         \compatfile{ngermanb}
+         \compatfile{naustrian}
+         \compatfile{irish}
+         \compatfile{scottish}
+         \compatfile{welsh}
+         \compatfile{breton}
+         }
 \generate{%
-          \compatfile{francais}
-          \compatfile{italian}
-          \compatfile{portuges}
-          \compatfile{spanish}
-          \compatfile{catalan}
-          \compatfile{galician}
-          \compatfile{danish}
-          \compatfile{norsk}
-          \compatfile{swedish}
-          \compatfile{finnish}
-          \compatfile{magyar}
-          \compatfile{greek}
-          \compatfile{croatian}
-          \compatfile{czech}
-          \compatfile{slovak}
-          \compatfile{polish}
-          }
+         \compatfile{francais}
+         \compatfile{italian}
+         \compatfile{portuges}
+         \compatfile{spanish}
+         \compatfile{catalan}
+         \compatfile{galician}
+         \compatfile{danish}
+         \compatfile{norsk}
+         \compatfile{swedish}
+         \compatfile{finnish}
+         \compatfile{magyar}
+         \compatfile{greek}
+         \compatfile{croatian}
+         \compatfile{czech}
+         \compatfile{slovak}
+         \compatfile{polish}
+         }
 \generate{%
-          \compatfile{estonian}
-          \compatfile{romanian}
-          \compatfile{slovene}
-          \compatfile{russianb}
-          \compatfile{ukraineb}
-          \compatfile{turkish}
-          \compatfile{lsorbian}
-          \compatfile{usorbian}
-          \compatfile{bahasa}
-          \compatfile{hebrew}
-          %\compatfile{sanskrit}
-          \compatfile{basque}
-          \compatfile{latin}
-          \compatfile{icelandic}
-          \compatfile{serbian}
-          \compatfile{bulgarian}
-          }
+         \compatfile{estonian}
+         \compatfile{romanian}
+         \compatfile{slovene}
+         \compatfile{russianb}
+         \compatfile{ukraineb}
+         \compatfile{turkish}
+         \compatfile{lsorbian}
+         \compatfile{usorbian}
+         \compatfile{bahasa}
+         \compatfile{hebrew}
+         \compatfile{basque}
+         \compatfile{latin}
+         \compatfile{icelandic}
+         \compatfile{serbian}
+         \compatfile{bulgarian}
+         }
 \generate{%
-          \compatfile{samin}
-          \compatfile{interlingua}
-          \compatfile{albanian}
-          \compatfile{bahasam}
-          }
+         \compatfile{samin}
+         \compatfile{interlingua}
+         \compatfile{albanian}
+         \compatfile{bahasam}
+         }
 
 % MakeIndex style files
 
diff --git a/Master/texmf-dist/source/latex/babel/bbcompat.dtx b/Master/texmf-dist/source/latex/babel/bbcompat.dtx
index c25a6ea7de7..4744d1b825a 100644
--- a/Master/texmf-dist/source/latex/babel/bbcompat.dtx
+++ b/Master/texmf-dist/source/latex/babel/bbcompat.dtx
@@ -30,7 +30,7 @@
 %
 % \iffalse
 %<*dtx>
-\ProvidesFile{bbcompat.dtx}[2018/10/16 v3.26]
+\ProvidesFile{bbcompat.dtx}[2018/11/13 v3.27]
 %</dtx>
 %
 %% File 'bbcompat.dtx'
diff --git a/Master/texmf-dist/source/latex/babel/locale.zip b/Master/texmf-dist/source/latex/babel/locale.zip
index 3dc2df365cd..2c6a66a2bb2 100644
--- a/Master/texmf-dist/source/latex/babel/locale.zip
+++ b/Master/texmf-dist/source/latex/babel/locale.zip
diff --git a/Master/texmf-dist/tex/generic/babel/babel.def b/Master/texmf-dist/tex/generic/babel/babel.def
index 5fc96c3a2b1..5d2db7261f2 100644
--- a/Master/texmf-dist/tex/generic/babel/babel.def
+++ b/Master/texmf-dist/tex/generic/babel/babel.def
@@ -41,7 +41,7 @@
     \wlog{File: #1 #4 #3 <#2>}%
     \let\ProvidesFile\@undefined}
 \fi
-\ProvidesFile{babel.def}[2018/10/16 3.26 Babel common definitions]
+\ProvidesFile{babel.def}[2018/11/13 3.27 Babel common definitions]
 \ifx\AtBeginDocument\@undefined
   \input plain.def\relax
 \fi
@@ -1944,18 +1944,18 @@
   }
 \@onlypreamble\substitutefontfamily
 \bbl@trace{Encoding and fonts}
-\newcommand\BabelNonASCII
-  {LGR,X2,OT2,OT3,OT6,LHE,LWN,LMA,LMC,LMS,LMU,TS1,T3,TS3}
+\newcommand\BabelNonASCII{LGR,X2,OT2,OT3,OT6,LHE,LWN,LMA,LMC,LMS,LMU}
+\newcommand\BabelNonText{TS1,T3,TS3}
 \let\org@TeX\TeX
 \let\org@LaTeX\LaTeX
 \let\ensureascii\@firstofone
 \AtBeginDocument{%
   \in@false
-  \bbl@foreach\BabelNonASCII{% is there a non-ascii enc?
+  \bbl@foreach\BabelNonASCII{% is there a text non-ascii enc?
     \ifin@\else
       \lowercase{\bbl@xin@{,#1enc.def,}{,\@filelist,}}%
     \fi}%
-  \ifin@ % if a non-ascii has been loaded
+  \ifin@ % if a text non-ascii has been loaded
     \def\ensureascii#1{{\fontencoding{OT1}\selectfont#1}}%
     \DeclareTextCommandDefault{\TeX}{\org@TeX}%
     \DeclareTextCommandDefault{\LaTeX}{\org@LaTeX}%
@@ -1964,7 +1964,7 @@
       \ifx\@empty#2\else
         \bbl@ifunset{T@#1}%
           {}%
-          {\bbl@xin@{,#1,}{,\BabelNonASCII,}%
+          {\bbl@xin@{,#1,}{,\BabelNonASCII,\BabelNonText,}%
            \ifin@
              \DeclareTextCommand{\TeX}{#1}{\ensureascii{\org@TeX}}%
              \DeclareTextCommand{\LaTeX}{#1}{\ensureascii{\org@LaTeX}}%
@@ -1973,7 +1973,7 @@
            \fi}%
       \fi}%
     \bbl@foreach\@filelist{\bbl@tempb#1\@@}%  TODO - \@@ de mas??
-    \bbl@xin@{,\cf@encoding,}{,\BabelNonASCII,}%
+    \bbl@xin@{,\cf@encoding,}{,\BabelNonASCII,\BabelNonText,}%
     \ifin@\else
       \edef\ensureascii#1{{%
         \noexpand\fontencoding{\cf@encoding}\noexpand\selectfont#1}}%
@@ -2120,6 +2120,18 @@
     \newtoks\everypar
     \everypar=\bbl@severypar
     \bbl@severypar{\bbl@xeeverypar\the\everypar}}
+  \@ifpackagewith{babel}{bidi=bidi}%
+    {\let\bbl@textdir@i\@gobbletwo
+     \let\bbl@xebidipar\@empty
+     \AddBabelHook{bidi}{foreign}{%
+       \def\bbl@tempa{\def\BabelText####1}%
+       \ifcase\bbl@thetextdir
+         \expandafter\bbl@tempa\expandafter{\BabelText{\LR{##1}}}%
+       \else
+         \expandafter\bbl@tempa\expandafter{\BabelText{\RL{##1}}}%
+       \fi}
+     \def\bbl@pardir#1{\ifcase#1\relax\setLR\else\setRL\fi}}
+    {}%
 \fi
   \DeclareRobustCommand\babelsublr[1]{\leavevmode{\bbl@textdir\z@#1}}
 \bbl@trace{Local Language Configuration}
diff --git a/Master/texmf-dist/tex/generic/babel/babel.sty b/Master/texmf-dist/tex/generic/babel/babel.sty
index 93026515a73..c0b470c1ed2 100644
--- a/Master/texmf-dist/tex/generic/babel/babel.sty
+++ b/Master/texmf-dist/tex/generic/babel/babel.sty
@@ -33,7 +33,7 @@
 %%
 
 \NeedsTeXFormat{LaTeX2e}[2005/12/01]
-\ProvidesPackage{babel}[2018/10/16 3.26 The Babel package]
+\ProvidesPackage{babel}[2018/11/13 3.27 The Babel package]
 \@ifpackagewith{babel}{debug}
   {\providecommand\bbl@trace[1]{\message{^^J[ #1 ]}}%
    \let\bbl@debug\@firstofone}
@@ -291,6 +291,16 @@
     \AtEndOfPackage{%
       \EnableBabelHook{babel-bidi}%
       \bbl@xebidipar}}
+  \DeclareOption{bidi=bidi}%
+    {\bbl@tentative{bidi=bidi}%
+     \ifx\RTLfootnotetext\@undefined
+       \AtEndOfPackage{%
+         \EnableBabelHook{babel-bidi}%
+         \ifx\fontspec\@undefined
+           \usepackage{fontspec}% bidi needs fontspec
+         \fi
+         \usepackage{bidi}}%
+     \fi}
 \fi
 \DeclareOption{bidi=default}%
   {\let\bbl@beforeforeign\leavevmode
diff --git a/Master/texmf-dist/tex/generic/babel/hyphen.cfg b/Master/texmf-dist/tex/generic/babel/hyphen.cfg
index c6c8b671b11..f537754e5de 100644
--- a/Master/texmf-dist/tex/generic/babel/hyphen.cfg
+++ b/Master/texmf-dist/tex/generic/babel/hyphen.cfg
@@ -37,7 +37,7 @@
     \wlog{File: #1 #4 #3 <#2>}%
     \let\ProvidesFile\@undefined}
 \fi
-\ProvidesFile{hyphen.cfg}[2018/10/16 3.26 Babel hyphens]
+\ProvidesFile{hyphen.cfg}[2018/11/13 3.27 Babel hyphens]
 \xdef\bbl@format{\jobname}
 \ifx\AtBeginDocument\@undefined
   \def\@empty{}
diff --git a/Master/texmf-dist/tex/generic/babel/locale/vi/babel-vi.ini b/Master/texmf-dist/tex/generic/babel/locale/vi/babel-vi.ini
index 21f6cbb5d81..396a9c7a731 100644
--- a/Master/texmf-dist/tex/generic/babel/locale/vi/babel-vi.ini
+++ b/Master/texmf-dist/tex/generic/babel/locale/vi/babel-vi.ini
@@ -8,11 +8,12 @@
 ; * Common Locale Data Repository (license Unicode):
 ;   http://cldr.unicode.org/
 ;   http://unicode.org/copyright.html
+; With suggestions by Reinhard Kotucha
 
 [identification]
 charset = utf8
-version = 1.0
-date = 2017-09-01
+version = 1.1
+date = 2018-11-12
 name.local = Tiếng Việt
 name.english = Vietnamese
 name.babel = vietnamese
@@ -23,7 +24,7 @@ script.name = Latin
 script.tag.bcp47 = Latn
 script.tag.opentype = latn
 level = 1
-encodings = T1 OT1 LY1
+encodings = T5
 derivate = no
 
 [captions]
@@ -147,7 +148,7 @@ time.short = [HH]:[mm]
 
 [typography]
 frenchspacing = yes
-hyphenrules = vietnam
+hyphenrules = 
 lefthyphenmin = 2
 righthyphenmin = 3
 hyphenchar = 
diff --git a/Master/texmf-dist/tex/generic/babel/nil.ldf b/Master/texmf-dist/tex/generic/babel/nil.ldf
index 48f3b6d27ee..7ef76efb096 100644
--- a/Master/texmf-dist/tex/generic/babel/nil.ldf
+++ b/Master/texmf-dist/tex/generic/babel/nil.ldf
@@ -32,7 +32,7 @@
 %% extension |.ins|) which are part of the distribution.
 %%
 
-\ProvidesLanguage{nil}[2018/10/16 3.26 Nil language]
+\ProvidesLanguage{nil}[2018/11/13 3.27 Nil language]
 \LdfInit{nil}{datenil}
 \ifx\l@nohyphenation\@undefined
    \@nopatterns{nil}
diff --git a/Master/texmf-dist/tex/generic/babel/switch.def b/Master/texmf-dist/tex/generic/babel/switch.def
index 0d9ced0dfc7..486e4da6b14 100644
--- a/Master/texmf-dist/tex/generic/babel/switch.def
+++ b/Master/texmf-dist/tex/generic/babel/switch.def
@@ -37,7 +37,7 @@
     \wlog{File: #1 #4 #3 <#2>}%
     \let\ProvidesFile\@undefined}
 \fi
-\ProvidesFile{switch.def}[2018/10/16 3.26 Babel switching mechanism]
+\ProvidesFile{switch.def}[2018/11/13 3.27 Babel switching mechanism]
 \ifx\AtBeginDocument\@undefined
   \input plain.def\relax
 \fi
@@ -58,8 +58,8 @@
   \countdef\last@language=19
   \def\addlanguage{\alloc@9\language\chardef\@cclvi}
 \fi
-\def\bbl@version{3.26}
-\def\bbl@date{2018/10/16}
+\def\bbl@version{3.27}
+\def\bbl@date{2018/11/13}
 \def\adddialect#1#2{%
   \global\chardef#1#2\relax
   \bbl@usehooks{adddialect}{{#1}{#2}}%
@@ -397,7 +397,7 @@
 \def\bbl@tentative{\protect\bbl@tentative@i}
 \def\bbl@tentative@i#1{%
   \bbl@warning{%
-    Some functions in '#1' are tentative.\\%
+    Some functions for '#1' are tentative.\\%
     They might not work as expected and their behavior\\%
     could change in the future.\\%
     Reported}}