%%
%% This is file `babel.def',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% babel.dtx  (with options: `core')
%% 
%%
%% Copyright (C) 2012-2019 Javier Bezos and Johannes L. Braams.
%% Copyright (C) 1989-2012 Johannes L. Braams and
%%           any individual authors listed elsewhere in this file.
%% All rights reserved.
%%
%% This file is part of the Babel system.
%% --------------------------------------
%%
%% It may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%% The latest version of this license is in
%%   http://www.latex-project.org/lppl.txt
%% and version 1.3 or later is part of all distributions of LaTeX
%% version 2003/12/01 or later.
%%
%% This work has the LPPL maintenance status "maintained".
%%
%% The Current Maintainer of this work is Javier Bezos.
%%
%% The list of derived (unpacked) files belonging to the distribution
%% and covered by LPPL is defined by the unpacking scripts (with
%% extension |.ins|) which are part of the distribution.
%%

\ifx\ldf@quit\@undefined
\else
  \expandafter\endinput
\fi
\ifx\ProvidesFile\@undefined
  \def\ProvidesFile#1[#2 #3 #4]{%
    \wlog{File: #1 #4 #3 <#2>}%
    \let\ProvidesFile\@undefined}
\fi
\ProvidesFile{babel.def}[2019/11/14 3.36 Babel common definitions]
\ifx\AtBeginDocument\@undefined
  \input plain.def\relax
\fi
\ifx\bbl@ifshorthand\@undefined
  \let\bbl@opt@shorthands\@nnil
  \def\bbl@ifshorthand#1#2#3{#2}%
  \let\bbl@language@opts\@empty
  \ifx\babeloptionstrings\@undefined
    \let\bbl@opt@strings\@nnil
  \else
    \let\bbl@opt@strings\babeloptionstrings
  \fi
  \def\BabelStringsDefault{generic}
  \def\bbl@tempa{normal}
  \ifx\babeloptionmath\bbl@tempa
    \def\bbl@mathnormal{\noexpand\textormath}
  \fi
  \def\AfterBabelLanguage#1#2{}
  \ifx\BabelModifiers\@undefined\let\BabelModifiers\relax\fi
  \let\bbl@afterlang\relax
  \def\bbl@opt@safe{BR}
  \ifx\@uclclist\@undefined\let\@uclclist\@empty\fi
  \ifx\bbl@trace\@undefined\def\bbl@trace#1{}\fi
  \expandafter\newif\csname ifbbl@single\endcsname
\fi
\ifx\bbl@switchflag\@undefined % Prevent double input
  \let\bbl@switchflag\relax
  \input switch.def\relax
\fi
\bbl@trace{Compatibility with language.def}
\ifx\bbl@languages\@undefined
  \ifx\directlua\@undefined
    \openin1 = language.def
    \ifeof1
      \closein1
      \message{I couldn't find the file language.def}
    \else
      \closein1
      \begingroup
        \def\addlanguage#1#2#3#4#5{%
          \expandafter\ifx\csname lang@#1\endcsname\relax\else
            \global\expandafter\let\csname l@#1\expandafter\endcsname
              \csname lang@#1\endcsname
          \fi}%
        \def\uselanguage#1{}%
        \input language.def
      \endgroup
    \fi
  \fi
  \chardef\l@english\z@
\fi
\ifx\directlua\@undefined\else
  \ifx\bbl@luapatterns\@undefined
    \input luababel.def
  \fi
\fi
\bbl@trace{Basic macros}
\def\bbl@stripslash{\expandafter\@gobble\string}
\def\bbl@add#1#2{%
  \bbl@ifunset{\bbl@stripslash#1}%
    {\def#1{#2}}%
    {\expandafter\def\expandafter#1\expandafter{#1#2}}}
\def\bbl@xin@{\@expandtwoargs\in@}
\def\bbl@csarg#1#2{\expandafter#1\csname bbl@#2\endcsname}%
\def\bbl@cs#1{\csname bbl@#1\endcsname}
\def\bbl@loop#1#2#3{\bbl@@loop#1{#3}#2,\@nnil,}
\def\bbl@loopx#1#2{\expandafter\bbl@loop\expandafter#1\expandafter{#2}}
\def\bbl@@loop#1#2#3,{%
  \ifx\@nnil#3\relax\else
    \def#1{#3}#2\bbl@afterfi\bbl@@loop#1{#2}%
  \fi}
\def\bbl@for#1#2#3{\bbl@loopx#1{#2}{\ifx#1\@empty\else#3\fi}}
\def\bbl@add@list#1#2{%
  \edef#1{%
    \bbl@ifunset{\bbl@stripslash#1}%
      {}%
      {\ifx#1\@empty\else#1,\fi}%
    #2}}
\long\def\bbl@afterelse#1\else#2\fi{\fi#1}
\long\def\bbl@afterfi#1\fi{\fi#1}
\def\bbl@exp#1{%
  \begingroup
    \let\\\noexpand
    \def\<##1>{\expandafter\noexpand\csname##1\endcsname}%
    \edef\bbl@exp@aux{\endgroup#1}%
  \bbl@exp@aux}
\def\bbl@tempa#1{%
  \long\def\bbl@trim##1##2{%
    \futurelet\bbl@trim@a\bbl@trim@c##2\@nil\@nil#1\@nil\relax{##1}}%
  \def\bbl@trim@c{%
    \ifx\bbl@trim@a\@sptoken
      \expandafter\bbl@trim@b
    \else
      \expandafter\bbl@trim@b\expandafter#1%
    \fi}%
  \long\def\bbl@trim@b#1##1 \@nil{\bbl@trim@i##1}}
\bbl@tempa{ }
\long\def\bbl@trim@i#1\@nil#2\relax#3{#3{#1}}
\long\def\bbl@trim@def#1{\bbl@trim{\def#1}}
\begingroup
  \gdef\bbl@ifunset#1{%
    \expandafter\ifx\csname#1\endcsname\relax
      \expandafter\@firstoftwo
    \else
      \expandafter\@secondoftwo
    \fi}
  \bbl@ifunset{ifcsname}%
    {}%
    {\gdef\bbl@ifunset#1{%
       \ifcsname#1\endcsname
         \expandafter\ifx\csname#1\endcsname\relax
           \bbl@afterelse\expandafter\@firstoftwo
         \else
           \bbl@afterfi\expandafter\@secondoftwo
         \fi
       \else
         \expandafter\@firstoftwo
       \fi}}
\endgroup
\def\bbl@ifblank#1{%
  \bbl@ifblank@i#1\@nil\@nil\@secondoftwo\@firstoftwo\@nil}
\long\def\bbl@ifblank@i#1#2\@nil#3#4#5\@nil{#4}
\def\bbl@forkv#1#2{%
  \def\bbl@kvcmd##1##2##3{#2}%
  \bbl@kvnext#1,\@nil,}
\def\bbl@kvnext#1,{%
  \ifx\@nil#1\relax\else
    \bbl@ifblank{#1}{}{\bbl@forkv@eq#1=\@empty=\@nil{#1}}%
    \expandafter\bbl@kvnext
  \fi}
\def\bbl@forkv@eq#1=#2=#3\@nil#4{%
  \bbl@trim@def\bbl@forkv@a{#1}%
  \bbl@trim{\expandafter\bbl@kvcmd\expandafter{\bbl@forkv@a}}{#2}{#4}}
\def\bbl@vforeach#1#2{%
  \def\bbl@forcmd##1{#2}%
  \bbl@fornext#1,\@nil,}
\def\bbl@fornext#1,{%
  \ifx\@nil#1\relax\else
    \bbl@ifblank{#1}{}{\bbl@trim\bbl@forcmd{#1}}%
    \expandafter\bbl@fornext
  \fi}
\def\bbl@foreach#1{\expandafter\bbl@vforeach\expandafter{#1}}
\def\bbl@replace#1#2#3{% in #1 -> repl #2 by #3
  \toks@{}%
  \def\bbl@replace@aux##1#2##2#2{%
    \ifx\bbl@nil##2%
      \toks@\expandafter{\the\toks@##1}%
    \else
      \toks@\expandafter{\the\toks@##1#3}%
      \bbl@afterfi
      \bbl@replace@aux##2#2%
    \fi}%
  \expandafter\bbl@replace@aux#1#2\bbl@nil#2%
  \edef#1{\the\toks@}}
\bbl@exp{\def\\\bbl@parsedef##1\detokenize{macro:}}#2->#3\relax{%
  \def\bbl@tempa{#1}%
  \def\bbl@tempb{#2}%
  \def\bbl@tempe{#3}}
\def\bbl@sreplace#1#2#3{%
  \begingroup
    \expandafter\bbl@parsedef\meaning#1\relax
    \def\bbl@tempc{#2}%
    \edef\bbl@tempc{\expandafter\strip@prefix\meaning\bbl@tempc}%
    \def\bbl@tempd{#3}%
    \edef\bbl@tempd{\expandafter\strip@prefix\meaning\bbl@tempd}%
    \bbl@xin@{\bbl@tempc}{\bbl@tempe}% If not in macro, do nothing
    \ifin@
      \bbl@exp{\\\bbl@replace\\\bbl@tempe{\bbl@tempc}{\bbl@tempd}}%
      \def\bbl@tempc{%     Expanded an executed below as 'uplevel'
         \\\makeatletter % "internal" macros with @ are assumed
         \\\scantokens{%
           \bbl@tempa\\\@namedef{\bbl@stripslash#1}\bbl@tempb{\bbl@tempe}}%
         \catcode64=\the\catcode64\relax}%  Restore @
    \else
      \let\bbl@tempc\@empty  % Not \relax
    \fi
    \bbl@exp{%      For the 'uplevel' assignments
  \endgroup
    \bbl@tempc}}  % empty or expand to set #1 with changes
\def\bbl@ifsamestring#1#2{%
  \begingroup
    \protected@edef\bbl@tempb{#1}%
    \edef\bbl@tempb{\expandafter\strip@prefix\meaning\bbl@tempb}%
    \protected@edef\bbl@tempc{#2}%
    \edef\bbl@tempc{\expandafter\strip@prefix\meaning\bbl@tempc}%
    \ifx\bbl@tempb\bbl@tempc
      \aftergroup\@firstoftwo
    \else
      \aftergroup\@secondoftwo
    \fi
  \endgroup}
\chardef\bbl@engine=%
  \ifx\directlua\@undefined
    \ifx\XeTeXinputencoding\@undefined
      \z@
    \else
      \tw@
    \fi
  \else
    \@ne
  \fi
\def\addto#1#2{%
  \ifx#1\@undefined
    \def#1{#2}%
  \else
    \ifx#1\relax
      \def#1{#2}%
    \else
      {\toks@\expandafter{#1#2}%
       \xdef#1{\the\toks@}}%
    \fi
  \fi}
\def\bbl@withactive#1#2{%
  \begingroup
    \lccode`~=`#2\relax
    \lowercase{\endgroup#1~}}
\def\bbl@redefine#1{%
  \edef\bbl@tempa{\bbl@stripslash#1}%
  \expandafter\let\csname org@\bbl@tempa\endcsname#1%
  \expandafter\def\csname\bbl@tempa\endcsname}
\@onlypreamble\bbl@redefine
\def\bbl@redefine@long#1{%
  \edef\bbl@tempa{\bbl@stripslash#1}%
  \expandafter\let\csname org@\bbl@tempa\endcsname#1%
  \expandafter\long\expandafter\def\csname\bbl@tempa\endcsname}
\@onlypreamble\bbl@redefine@long
\def\bbl@redefinerobust#1{%
  \edef\bbl@tempa{\bbl@stripslash#1}%
  \bbl@ifunset{\bbl@tempa\space}%
    {\expandafter\let\csname org@\bbl@tempa\endcsname#1%
     \bbl@exp{\def\\#1{\\\protect\<\bbl@tempa\space>}}}%
    {\bbl@exp{\let\<org@\bbl@tempa>\<\bbl@tempa\space>}}%
    \@namedef{\bbl@tempa\space}}
\@onlypreamble\bbl@redefinerobust
\bbl@trace{Hooks}
\newcommand\AddBabelHook[3][]{%
  \bbl@ifunset{bbl@hk@#2}{\EnableBabelHook{#2}}{}%
  \def\bbl@tempa##1,#3=##2,##3\@empty{\def\bbl@tempb{##2}}%
  \expandafter\bbl@tempa\bbl@evargs,#3=,\@empty
  \bbl@ifunset{bbl@ev@#2@#3@#1}%
    {\bbl@csarg\bbl@add{ev@#3@#1}{\bbl@elt{#2}}}%
    {\bbl@csarg\let{ev@#2@#3@#1}\relax}%
  \bbl@csarg\newcommand{ev@#2@#3@#1}[\bbl@tempb]}
\newcommand\EnableBabelHook[1]{\bbl@csarg\let{hk@#1}\@firstofone}
\newcommand\DisableBabelHook[1]{\bbl@csarg\let{hk@#1}\@gobble}
\def\bbl@usehooks#1#2{%
  \def\bbl@elt##1{%
    \@nameuse{bbl@hk@##1}{\@nameuse{bbl@ev@##1@#1@}#2}}%
  \@nameuse{bbl@ev@#1@}%
  \ifx\languagename\@undefined\else % Test required for Plain (?)
    \def\bbl@elt##1{%
      \@nameuse{bbl@hk@##1}{\@nameuse{bbl@ev@##1@#1@\languagename}#2}}%
    \@nameuse{bbl@ev@#1@\languagename}%
  \fi}
\def\bbl@evargs{,% <- don't delete this comma
  everylanguage=1,loadkernel=1,loadpatterns=1,loadexceptions=1,%
  adddialect=2,patterns=2,defaultcommands=0,encodedcommands=2,write=0,%
  beforeextras=0,afterextras=0,stopcommands=0,stringprocess=0,%
  hyphenation=2,initiateactive=3,afterreset=0,foreign=0,foreign*=0,%
  beforestart=0}
\bbl@trace{Defining babelensure}
\newcommand\babelensure[2][]{%  TODO - revise test files
  \AddBabelHook{babel-ensure}{afterextras}{%
    \ifcase\bbl@select@type
      \@nameuse{bbl@e@\languagename}%
    \fi}%
  \begingroup
    \let\bbl@ens@include\@empty
    \let\bbl@ens@exclude\@empty
    \def\bbl@ens@fontenc{\relax}%
    \def\bbl@tempb##1{%
      \ifx\@empty##1\else\noexpand##1\expandafter\bbl@tempb\fi}%
    \edef\bbl@tempa{\bbl@tempb#1\@empty}%
    \def\bbl@tempb##1=##2\@@{\@namedef{bbl@ens@##1}{##2}}%
    \bbl@foreach\bbl@tempa{\bbl@tempb##1\@@}%
    \def\bbl@tempc{\bbl@ensure}%
    \expandafter\bbl@add\expandafter\bbl@tempc\expandafter{%
      \expandafter{\bbl@ens@include}}%
    \expandafter\bbl@add\expandafter\bbl@tempc\expandafter{%
      \expandafter{\bbl@ens@exclude}}%
    \toks@\expandafter{\bbl@tempc}%
    \bbl@exp{%
  \endgroup
  \def\<bbl@e@#2>{\the\toks@{\bbl@ens@fontenc}}}}
\def\bbl@ensure#1#2#3{% 1: include 2: exclude 3: fontenc
  \def\bbl@tempb##1{% elt for (excluding) \bbl@captionslist list
    \ifx##1\@undefined % 3.32 - Don't assume the macros exists
      \edef##1{\noexpand\bbl@nocaption
        {\bbl@stripslash##1}{\languagename\bbl@stripslash##1}}%
    \fi
    \ifx##1\@empty\else
      \in@{##1}{#2}%
      \ifin@\else
        \bbl@ifunset{bbl@ensure@\languagename}%
          {\bbl@exp{%
            \\\DeclareRobustCommand\<bbl@ensure@\languagename>[1]{%
              \\\foreignlanguage{\languagename}%
              {\ifx\relax#3\else
                \\\fontencoding{#3}\\\selectfont
               \fi
               ########1}}}}%
          {}%
        \toks@\expandafter{##1}%
        \edef##1{%
           \bbl@csarg\noexpand{ensure@\languagename}%
           {\the\toks@}}%
      \fi
      \expandafter\bbl@tempb
    \fi}%
  \expandafter\bbl@tempb\bbl@captionslist\today\@empty
  \def\bbl@tempa##1{% elt for include list
    \ifx##1\@empty\else
      \bbl@csarg\in@{ensure@\languagename\expandafter}\expandafter{##1}%
      \ifin@\else
        \bbl@tempb##1\@empty
      \fi
      \expandafter\bbl@tempa
    \fi}%
  \bbl@tempa#1\@empty}
\def\bbl@captionslist{%
  \prefacename\refname\abstractname\bibname\chaptername\appendixname
  \contentsname\listfigurename\listtablename\indexname\figurename
  \tablename\partname\enclname\ccname\headtoname\pagename\seename
  \alsoname\proofname\glossaryname}
\bbl@trace{Macros for setting language files up}
\def\bbl@ldfinit{%
  \let\bbl@screset\@empty
  \let\BabelStrings\bbl@opt@string
  \let\BabelOptions\@empty
  \let\BabelLanguages\relax
  \ifx\originalTeX\@undefined
    \let\originalTeX\@empty
  \else
    \originalTeX
  \fi}
\def\LdfInit#1#2{%
  \chardef\atcatcode=\catcode`\@
  \catcode`\@=11\relax
  \chardef\eqcatcode=\catcode`\=
  \catcode`\==12\relax
  \expandafter\if\expandafter\@backslashchar
                 \expandafter\@car\string#2\@nil
    \ifx#2\@undefined\else
      \ldf@quit{#1}%
    \fi
  \else
    \expandafter\ifx\csname#2\endcsname\relax\else
      \ldf@quit{#1}%
    \fi
  \fi
  \bbl@ldfinit}
\def\ldf@quit#1{%
  \expandafter\main@language\expandafter{#1}%
  \catcode`\@=\atcatcode \let\atcatcode\relax
  \catcode`\==\eqcatcode \let\eqcatcode\relax
  \endinput}
\def\bbl@afterldf#1{%
  \bbl@afterlang
  \let\bbl@afterlang\relax
  \let\BabelModifiers\relax
  \let\bbl@screset\relax}%
\def\ldf@finish#1{%
  \loadlocalcfg{#1}%
  \bbl@afterldf{#1}%
  \expandafter\main@language\expandafter{#1}%
  \catcode`\@=\atcatcode \let\atcatcode\relax
  \catcode`\==\eqcatcode \let\eqcatcode\relax}
\@onlypreamble\LdfInit
\@onlypreamble\ldf@quit
\@onlypreamble\ldf@finish
\def\main@language#1{%
  \def\bbl@main@language{#1}%
  \let\languagename\bbl@main@language
  \bbl@id@assign
  \chardef\localeid\@nameuse{bbl@id@@\languagename}%
  \bbl@patterns{\languagename}}
\def\bbl@beforestart{%
  \bbl@usehooks{beforestart}{}%
  \global\let\bbl@beforestart\relax}
\AtBeginDocument{%
  \@nameuse{bbl@beforestart}%
  \if@filesw
    \immediate\write\@mainaux{\string\@nameuse{bbl@beforestart}}%
  \fi
  \expandafter\selectlanguage\expandafter{\bbl@main@language}%
  \ifbbl@single  % must go after the line above
    \renewcommand\selectlanguage[1]{}%
    \renewcommand\foreignlanguage[2]{#2}%
    \global\let\babel@aux\@gobbletwo  % Also as flag
  \fi
  \ifcase\bbl@engine\or\pagedir\bodydir\fi}  % TODO - a better place
\def\select@language@x#1{%
  \ifcase\bbl@select@type
    \bbl@ifsamestring\languagename{#1}{}{\select@language{#1}}%
  \else
    \select@language{#1}%
  \fi}
\bbl@trace{Shorhands}
\def\bbl@add@special#1{% 1:a macro like \", \?, etc.
  \bbl@add\dospecials{\do#1}% test @sanitize = \relax, for back. compat.
  \bbl@ifunset{@sanitize}{}{\bbl@add\@sanitize{\@makeother#1}}%
  \ifx\nfss@catcodes\@undefined\else % TODO - same for above
    \begingroup
      \catcode`#1\active
      \nfss@catcodes
      \ifnum\catcode`#1=\active
        \endgroup
        \bbl@add\nfss@catcodes{\@makeother#1}%
      \else
        \endgroup
      \fi
  \fi}
\def\bbl@remove@special#1{%
  \begingroup
    \def\x##1##2{\ifnum`#1=`##2\noexpand\@empty
                 \else\noexpand##1\noexpand##2\fi}%
    \def\do{\x\do}%
    \def\@makeother{\x\@makeother}%
  \edef\x{\endgroup
    \def\noexpand\dospecials{\dospecials}%
    \expandafter\ifx\csname @sanitize\endcsname\relax\else
      \def\noexpand\@sanitize{\@sanitize}%
    \fi}%
  \x}
\def\bbl@active@def#1#2#3#4{%
  \@namedef{#3#1}{%
    \expandafter\ifx\csname#2@sh@#1@\endcsname\relax
      \bbl@afterelse\bbl@sh@select#2#1{#3@arg#1}{#4#1}%
    \else
      \bbl@afterfi\csname#2@sh@#1@\endcsname
    \fi}%
  \long\@namedef{#3@arg#1}##1{%
    \expandafter\ifx\csname#2@sh@#1@\string##1@\endcsname\relax
      \bbl@afterelse\csname#4#1\endcsname##1%
    \else
      \bbl@afterfi\csname#2@sh@#1@\string##1@\endcsname
    \fi}}%
\def\initiate@active@char#1{%
  \bbl@ifunset{active@char\string#1}%
    {\bbl@withactive
      {\expandafter\@initiate@active@char\expandafter}#1\string#1#1}%
    {}}
\def\@initiate@active@char#1#2#3{%
  \bbl@csarg\edef{oricat@#2}{\catcode`#2=\the\catcode`#2\relax}%
  \ifx#1\@undefined
    \bbl@csarg\edef{oridef@#2}{\let\noexpand#1\noexpand\@undefined}%
  \else
    \bbl@csarg\let{oridef@@#2}#1%
    \bbl@csarg\edef{oridef@#2}{%
      \let\noexpand#1%
      \expandafter\noexpand\csname bbl@oridef@@#2\endcsname}%
  \fi
  \ifx#1#3\relax
    \expandafter\let\csname normal@char#2\endcsname#3%
  \else
    \bbl@info{Making #2 an active character}%
    \ifnum\mathcode`#2=\ifodd\bbl@engine"1000000 \else"8000 \fi
      \@namedef{normal@char#2}{%
        \textormath{#3}{\csname bbl@oridef@@#2\endcsname}}%
    \else
      \@namedef{normal@char#2}{#3}%
    \fi
    \bbl@restoreactive{#2}%
    \AtBeginDocument{%
      \catcode`#2\active
      \if@filesw
        \immediate\write\@mainaux{\catcode`\string#2\active}%
      \fi}%
    \expandafter\bbl@add@special\csname#2\endcsname
    \catcode`#2\active
  \fi
  \let\bbl@tempa\@firstoftwo
  \if\string^#2%
    \def\bbl@tempa{\noexpand\textormath}%
  \else
    \ifx\bbl@mathnormal\@undefined\else
      \let\bbl@tempa\bbl@mathnormal
    \fi
  \fi
  \expandafter\edef\csname active@char#2\endcsname{%
    \bbl@tempa
      {\noexpand\if@safe@actives
         \noexpand\expandafter
         \expandafter\noexpand\csname normal@char#2\endcsname
       \noexpand\else
         \noexpand\expandafter
         \expandafter\noexpand\csname bbl@doactive#2\endcsname
       \noexpand\fi}%
     {\expandafter\noexpand\csname normal@char#2\endcsname}}%
  \bbl@csarg\edef{doactive#2}{%
    \expandafter\noexpand\csname user@active#2\endcsname}%
  \bbl@csarg\edef{active@#2}{%
    \noexpand\active@prefix\noexpand#1%
    \expandafter\noexpand\csname active@char#2\endcsname}%
  \bbl@csarg\edef{normal@#2}{%
    \noexpand\active@prefix\noexpand#1%
    \expandafter\noexpand\csname normal@char#2\endcsname}%
  \expandafter\let\expandafter#1\csname bbl@normal@#2\endcsname
  \bbl@active@def#2\user@group{user@active}{language@active}%
  \bbl@active@def#2\language@group{language@active}{system@active}%
  \bbl@active@def#2\system@group{system@active}{normal@char}%
  \expandafter\edef\csname\user@group @sh@#2@@\endcsname
    {\expandafter\noexpand\csname normal@char#2\endcsname}%
  \expandafter\edef\csname\user@group @sh@#2@\string\protect@\endcsname
    {\expandafter\noexpand\csname user@active#2\endcsname}%
  \if\string'#2%
    \let\prim@s\bbl@prim@s
    \let\active@math@prime#1%
  \fi
  \bbl@usehooks{initiateactive}{{#1}{#2}{#3}}}
\@ifpackagewith{babel}{KeepShorthandsActive}%
  {\let\bbl@restoreactive\@gobble}%
  {\def\bbl@restoreactive#1{%
     \bbl@exp{%
       \\\AfterBabelLanguage\\\CurrentOption
         {\catcode`#1=\the\catcode`#1\relax}%
       \\\AtEndOfPackage
         {\catcode`#1=\the\catcode`#1\relax}}}%
   \AtEndOfPackage{\let\bbl@restoreactive\@gobble}}
\def\bbl@sh@select#1#2{%
  \expandafter\ifx\csname#1@sh@#2@sel\endcsname\relax
    \bbl@afterelse\bbl@scndcs
  \else
    \bbl@afterfi\csname#1@sh@#2@sel\endcsname
  \fi}
\begingroup
\bbl@ifunset{ifincsname}%
  {\gdef\active@prefix#1{%
     \ifx\protect\@typeset@protect
     \else
       \ifx\protect\@unexpandable@protect
         \noexpand#1%
       \else
         \protect#1%
       \fi
       \expandafter\@gobble
     \fi}}
  {\gdef\active@prefix#1{%
     \ifincsname
       \string#1%
       \expandafter\@gobble
     \else
       \ifx\protect\@typeset@protect
       \else
         \ifx\protect\@unexpandable@protect
           \noexpand#1%
         \else
           \protect#1%
         \fi
         \expandafter\expandafter\expandafter\@gobble
       \fi
     \fi}}
\endgroup
\newif\if@safe@actives
\@safe@activesfalse
\def\bbl@restore@actives{\if@safe@actives\@safe@activesfalse\fi}
\def\bbl@activate#1{%
  \bbl@withactive{\expandafter\let\expandafter}#1%
    \csname bbl@active@\string#1\endcsname}
\def\bbl@deactivate#1{%
  \bbl@withactive{\expandafter\let\expandafter}#1%
    \csname bbl@normal@\string#1\endcsname}
\def\bbl@firstcs#1#2{\csname#1\endcsname}
\def\bbl@scndcs#1#2{\csname#2\endcsname}
\def\declare@shorthand#1#2{\@decl@short{#1}#2\@nil}
\def\@decl@short#1#2#3\@nil#4{%
  \def\bbl@tempa{#3}%
  \ifx\bbl@tempa\@empty
    \expandafter\let\csname #1@sh@\string#2@sel\endcsname\bbl@scndcs
    \bbl@ifunset{#1@sh@\string#2@}{}%
      {\def\bbl@tempa{#4}%
       \expandafter\ifx\csname#1@sh@\string#2@\endcsname\bbl@tempa
       \else
         \bbl@info
           {Redefining #1 shorthand \string#2\\%
            in language \CurrentOption}%
       \fi}%
    \@namedef{#1@sh@\string#2@}{#4}%
  \else
    \expandafter\let\csname #1@sh@\string#2@sel\endcsname\bbl@firstcs
    \bbl@ifunset{#1@sh@\string#2@\string#3@}{}%
      {\def\bbl@tempa{#4}%
       \expandafter\ifx\csname#1@sh@\string#2@\string#3@\endcsname\bbl@tempa
       \else
         \bbl@info
           {Redefining #1 shorthand \string#2\string#3\\%
            in language \CurrentOption}%
       \fi}%
    \@namedef{#1@sh@\string#2@\string#3@}{#4}%
  \fi}
\def\textormath{%
  \ifmmode
    \expandafter\@secondoftwo
  \else
    \expandafter\@firstoftwo
  \fi}
\def\user@group{user}
\def\language@group{english}
\def\system@group{system}
\def\useshorthands{%
  \@ifstar\bbl@usesh@s{\bbl@usesh@x{}}}
\def\bbl@usesh@s#1{%
  \bbl@usesh@x
    {\AddBabelHook{babel-sh-\string#1}{afterextras}{\bbl@activate{#1}}}%
    {#1}}
\def\bbl@usesh@x#1#2{%
  \bbl@ifshorthand{#2}%
    {\def\user@group{user}%
     \initiate@active@char{#2}%
     #1%
     \bbl@activate{#2}}%
    {\bbl@error
       {Cannot declare a shorthand turned off (\string#2)}
       {Sorry, but you cannot use shorthands which have been\\%
        turned off in the package options}}}
\def\user@language@group{user@\language@group}
\def\bbl@set@user@generic#1#2{%
  \bbl@ifunset{user@generic@active#1}%
    {\bbl@active@def#1\user@language@group{user@active}{user@generic@active}%
     \bbl@active@def#1\user@group{user@generic@active}{language@active}%
     \expandafter\edef\csname#2@sh@#1@@\endcsname{%
       \expandafter\noexpand\csname normal@char#1\endcsname}%
     \expandafter\edef\csname#2@sh@#1@\string\protect@\endcsname{%
       \expandafter\noexpand\csname user@active#1\endcsname}}%
  \@empty}
\newcommand\defineshorthand[3][user]{%
  \edef\bbl@tempa{\zap@space#1 \@empty}%
  \bbl@for\bbl@tempb\bbl@tempa{%
    \if*\expandafter\@car\bbl@tempb\@nil
      \edef\bbl@tempb{user@\expandafter\@gobble\bbl@tempb}%
      \@expandtwoargs
        \bbl@set@user@generic{\expandafter\string\@car#2\@nil}\bbl@tempb
    \fi
    \declare@shorthand{\bbl@tempb}{#2}{#3}}}
\def\languageshorthands#1{\def\language@group{#1}}
\def\aliasshorthand#1#2{%
  \bbl@ifshorthand{#2}%
    {\expandafter\ifx\csname active@char\string#2\endcsname\relax
       \ifx\document\@notprerr
         \@notshorthand{#2}%
       \else
         \initiate@active@char{#2}%
         \expandafter\let\csname active@char\string#2\expandafter\endcsname
           \csname active@char\string#1\endcsname
         \expandafter\let\csname normal@char\string#2\expandafter\endcsname
           \csname normal@char\string#1\endcsname
         \bbl@activate{#2}%
       \fi
     \fi}%
    {\bbl@error
       {Cannot declare a shorthand turned off (\string#2)}
       {Sorry, but you cannot use shorthands which have been\\%
        turned off in the package options}}}
\def\@notshorthand#1{%
  \bbl@error{%
    The character `\string #1' should be made a shorthand character;\\%
    add the command \string\useshorthands\string{#1\string} to
    the preamble.\\%
    I will ignore your instruction}%
   {You may proceed, but expect unexpected results}}
\newcommand*\shorthandon[1]{\bbl@switch@sh\@ne#1\@nnil}
\DeclareRobustCommand*\shorthandoff{%
  \@ifstar{\bbl@shorthandoff\tw@}{\bbl@shorthandoff\z@}}
\def\bbl@shorthandoff#1#2{\bbl@switch@sh#1#2\@nnil}
\def\bbl@switch@sh#1#2{%
  \ifx#2\@nnil\else
    \bbl@ifunset{bbl@active@\string#2}%
      {\bbl@error
         {I cannot switch `\string#2' on or off--not a shorthand}%
         {This character is not a shorthand. Maybe you made\\%
          a typing mistake? I will ignore your instruction}}%
      {\ifcase#1%
         \catcode`#212\relax
       \or
         \catcode`#2\active
       \or
         \csname bbl@oricat@\string#2\endcsname
         \csname bbl@oridef@\string#2\endcsname
       \fi}%
    \bbl@afterfi\bbl@switch@sh#1%
  \fi}
\def\babelshorthand{\active@prefix\babelshorthand\bbl@putsh}
\def\bbl@putsh#1{%
  \bbl@ifunset{bbl@active@\string#1}%
     {\bbl@putsh@i#1\@empty\@nnil}%
     {\csname bbl@active@\string#1\endcsname}}
\def\bbl@putsh@i#1#2\@nnil{%
  \csname\languagename @sh@\string#1@%
    \ifx\@empty#2\else\string#2@\fi\endcsname}
\ifx\bbl@opt@shorthands\@nnil\else
  \let\bbl@s@initiate@active@char\initiate@active@char
  \def\initiate@active@char#1{%
    \bbl@ifshorthand{#1}{\bbl@s@initiate@active@char{#1}}{}}
  \let\bbl@s@switch@sh\bbl@switch@sh
  \def\bbl@switch@sh#1#2{%
    \ifx#2\@nnil\else
      \bbl@afterfi
      \bbl@ifshorthand{#2}{\bbl@s@switch@sh#1{#2}}{\bbl@switch@sh#1}%
    \fi}
  \let\bbl@s@activate\bbl@activate
  \def\bbl@activate#1{%
    \bbl@ifshorthand{#1}{\bbl@s@activate{#1}}{}}
  \let\bbl@s@deactivate\bbl@deactivate
  \def\bbl@deactivate#1{%
    \bbl@ifshorthand{#1}{\bbl@s@deactivate{#1}}{}}
\fi
\newcommand\ifbabelshorthand[3]{\bbl@ifunset{bbl@active@\string#1}{#3}{#2}}
\def\bbl@prim@s{%
  \prime\futurelet\@let@token\bbl@pr@m@s}
\def\bbl@if@primes#1#2{%
  \ifx#1\@let@token
    \expandafter\@firstoftwo
  \else\ifx#2\@let@token
    \bbl@afterelse\expandafter\@firstoftwo
  \else
    \bbl@afterfi\expandafter\@secondoftwo
  \fi\fi}
\begingroup
  \catcode`\^=7  \catcode`\*=\active  \lccode`\*=`\^
  \catcode`\'=12 \catcode`\"=\active  \lccode`\"=`\'
  \lowercase{%
    \gdef\bbl@pr@m@s{%
      \bbl@if@primes"'%
        \pr@@@s
        {\bbl@if@primes*^\pr@@@t\egroup}}}
\endgroup
\initiate@active@char{~}
\declare@shorthand{system}{~}{\leavevmode\nobreak\ }
\bbl@activate{~}
\expandafter\def\csname OT1dqpos\endcsname{127}
\expandafter\def\csname T1dqpos\endcsname{4}
\ifx\f@encoding\@undefined
  \def\f@encoding{OT1}
\fi
\bbl@trace{Language attributes}
\newcommand\languageattribute[2]{%
  \def\bbl@tempc{#1}%
  \bbl@fixname\bbl@tempc
  \bbl@iflanguage\bbl@tempc{%
    \bbl@vforeach{#2}{%
      \ifx\bbl@known@attribs\@undefined
        \in@false
      \else
        \bbl@xin@{,\bbl@tempc-##1,}{,\bbl@known@attribs,}%
      \fi
      \ifin@
        \bbl@warning{%
          You have more than once selected the attribute '##1'\\%
          for language #1. Reported}%
      \else
        \bbl@exp{%
          \\\bbl@add@list\\\bbl@known@attribs{\bbl@tempc-##1}}%
        \edef\bbl@tempa{\bbl@tempc-##1}%
        \expandafter\bbl@ifknown@ttrib\expandafter{\bbl@tempa}\bbl@attributes%
        {\csname\bbl@tempc @attr@##1\endcsname}%
        {\@attrerr{\bbl@tempc}{##1}}%
     \fi}}}
\@onlypreamble\languageattribute
\newcommand*{\@attrerr}[2]{%
  \bbl@error
    {The attribute #2 is unknown for language #1.}%
    {Your command will be ignored, type <return> to proceed}}
\def\bbl@declare@ttribute#1#2#3{%
  \bbl@xin@{,#2,}{,\BabelModifiers,}%
  \ifin@
    \AfterBabelLanguage{#1}{\languageattribute{#1}{#2}}%
  \fi
  \bbl@add@list\bbl@attributes{#1-#2}%
  \expandafter\def\csname#1@attr@#2\endcsname{#3}}
\def\bbl@ifattributeset#1#2#3#4{%
  \ifx\bbl@known@attribs\@undefined
    \in@false
  \else
    \bbl@xin@{,#1-#2,}{,\bbl@known@attribs,}%
  \fi
  \ifin@
    \bbl@afterelse#3%
  \else
    \bbl@afterfi#4%
  \fi
  }
\def\bbl@ifknown@ttrib#1#2{%
  \let\bbl@tempa\@secondoftwo
  \bbl@loopx\bbl@tempb{#2}{%
    \expandafter\in@\expandafter{\expandafter,\bbl@tempb,}{,#1,}%
    \ifin@
      \let\bbl@tempa\@firstoftwo
    \else
    \fi}%
  \bbl@tempa
}
\def\bbl@clear@ttribs{%
  \ifx\bbl@attributes\@undefined\else
    \bbl@loopx\bbl@tempa{\bbl@attributes}{%
      \expandafter\bbl@clear@ttrib\bbl@tempa.
      }%
    \let\bbl@attributes\@undefined
  \fi}
\def\bbl@clear@ttrib#1-#2.{%
  \expandafter\let\csname#1@attr@#2\endcsname\@undefined}
\AtBeginDocument{\bbl@clear@ttribs}
\bbl@trace{Macros for saving definitions}
\def\babel@beginsave{\babel@savecnt\z@}
\newcount\babel@savecnt
\babel@beginsave
\def\babel@save#1{%
  \expandafter\let\csname babel@\number\babel@savecnt\endcsname#1\relax
  \toks@\expandafter{\originalTeX\let#1=}%
  \bbl@exp{%
    \def\\\originalTeX{\the\toks@\<babel@\number\babel@savecnt>\relax}}%
  \advance\babel@savecnt\@ne}
\def\babel@savevariable#1{%
  \toks@\expandafter{\originalTeX #1=}%
  \bbl@exp{\def\\\originalTeX{\the\toks@\the#1\relax}}}
\def\bbl@frenchspacing{%
  \ifnum\the\sfcode`\.=\@m
    \let\bbl@nonfrenchspacing\relax
  \else
    \frenchspacing
    \let\bbl@nonfrenchspacing\nonfrenchspacing
  \fi}
\let\bbl@nonfrenchspacing\nonfrenchspacing
\bbl@trace{Short tags}
\def\babeltags#1{%
  \edef\bbl@tempa{\zap@space#1 \@empty}%
  \def\bbl@tempb##1=##2\@@{%
    \edef\bbl@tempc{%
      \noexpand\newcommand
      \expandafter\noexpand\csname ##1\endcsname{%
        \noexpand\protect
        \expandafter\noexpand\csname otherlanguage*\endcsname{##2}}
      \noexpand\newcommand
      \expandafter\noexpand\csname text##1\endcsname{%
        \noexpand\foreignlanguage{##2}}}
    \bbl@tempc}%
  \bbl@for\bbl@tempa\bbl@tempa{%
    \expandafter\bbl@tempb\bbl@tempa\@@}}
\bbl@trace{Hyphens}
\@onlypreamble\babelhyphenation
\AtEndOfPackage{%
  \newcommand\babelhyphenation[2][\@empty]{%
    \ifx\bbl@hyphenation@\relax
      \let\bbl@hyphenation@\@empty
    \fi
    \ifx\bbl@hyphlist\@empty\else
      \bbl@warning{%
        You must not intermingle \string\selectlanguage\space and\\%
        \string\babelhyphenation\space or some exceptions will not\\%
        be taken into account. Reported}%
    \fi
    \ifx\@empty#1%
      \protected@edef\bbl@hyphenation@{\bbl@hyphenation@\space#2}%
    \else
      \bbl@vforeach{#1}{%
        \def\bbl@tempa{##1}%
        \bbl@fixname\bbl@tempa
        \bbl@iflanguage\bbl@tempa{%
          \bbl@csarg\protected@edef{hyphenation@\bbl@tempa}{%
            \bbl@ifunset{bbl@hyphenation@\bbl@tempa}%
              \@empty
              {\csname bbl@hyphenation@\bbl@tempa\endcsname\space}%
            #2}}}%
    \fi}}
\def\bbl@allowhyphens{\ifvmode\else\nobreak\hskip\z@skip\fi}
\def\bbl@t@one{T1}
\def\allowhyphens{\ifx\cf@encoding\bbl@t@one\else\bbl@allowhyphens\fi}
\newcommand\babelnullhyphen{\char\hyphenchar\font}
\def\babelhyphen{\active@prefix\babelhyphen\bbl@hyphen}
\def\bbl@hyphen{%
  \@ifstar{\bbl@hyphen@i @}{\bbl@hyphen@i\@empty}}
\def\bbl@hyphen@i#1#2{%
  \bbl@ifunset{bbl@hy@#1#2\@empty}%
    {\csname bbl@#1usehyphen\endcsname{\discretionary{#2}{}{#2}}}%
    {\csname bbl@hy@#1#2\@empty\endcsname}}
\def\bbl@usehyphen#1{%
  \leavevmode
  \ifdim\lastskip>\z@\mbox{#1}\else\nobreak#1\fi
  \nobreak\hskip\z@skip}
\def\bbl@@usehyphen#1{%
  \leavevmode\ifdim\lastskip>\z@\mbox{#1}\else#1\fi}
\def\bbl@hyphenchar{%
  \ifnum\hyphenchar\font=\m@ne
    \babelnullhyphen
  \else
    \char\hyphenchar\font
  \fi}
\def\bbl@hy@soft{\bbl@usehyphen{\discretionary{\bbl@hyphenchar}{}{}}}
\def\bbl@hy@@soft{\bbl@@usehyphen{\discretionary{\bbl@hyphenchar}{}{}}}
\def\bbl@hy@hard{\bbl@usehyphen\bbl@hyphenchar}
\def\bbl@hy@@hard{\bbl@@usehyphen\bbl@hyphenchar}
\def\bbl@hy@nobreak{\bbl@usehyphen{\mbox{\bbl@hyphenchar}}}
\def\bbl@hy@@nobreak{\mbox{\bbl@hyphenchar}}
\def\bbl@hy@repeat{%
  \bbl@usehyphen{%
    \discretionary{\bbl@hyphenchar}{\bbl@hyphenchar}{\bbl@hyphenchar}}}
\def\bbl@hy@@repeat{%
  \bbl@@usehyphen{%
    \discretionary{\bbl@hyphenchar}{\bbl@hyphenchar}{\bbl@hyphenchar}}}
\def\bbl@hy@empty{\hskip\z@skip}
\def\bbl@hy@@empty{\discretionary{}{}{}}
\def\bbl@disc#1#2{\nobreak\discretionary{#2-}{}{#1}\bbl@allowhyphens}
\bbl@trace{Multiencoding strings}
\def\bbl@toglobal#1{\global\let#1#1}
\def\bbl@recatcode#1{%
  \@tempcnta="7F
  \def\bbl@tempa{%
    \ifnum\@tempcnta>"FF\else
      \catcode\@tempcnta=#1\relax
      \advance\@tempcnta\@ne
      \expandafter\bbl@tempa
    \fi}%
  \bbl@tempa}
\@ifpackagewith{babel}{nocase}%
  {\let\bbl@patchuclc\relax}%
  {\def\bbl@patchuclc{%
    \global\let\bbl@patchuclc\relax
    \g@addto@macro\@uclclist{\reserved@b{\reserved@b\bbl@uclc}}%
    \gdef\bbl@uclc##1{%
      \let\bbl@encoded\bbl@encoded@uclc
      \bbl@ifunset{\languagename @bbl@uclc}% and resumes it
        {##1}%
        {\let\bbl@tempa##1\relax % Used by LANG@bbl@uclc
         \csname\languagename @bbl@uclc\endcsname}%
      {\bbl@tolower\@empty}{\bbl@toupper\@empty}}%
    \gdef\bbl@tolower{\csname\languagename @bbl@lc\endcsname}%
    \gdef\bbl@toupper{\csname\languagename @bbl@uc\endcsname}}}
\@onlypreamble\StartBabelCommands
\def\StartBabelCommands{%
  \begingroup
  \bbl@recatcode{11}%
  \def\SetStringLoop##1##2{%
    \def\bbl@templ####1{\expandafter\noexpand\csname##1\endcsname}%
    \count@\z@
    \bbl@loop\bbl@tempa{##2}{% empty items and spaces are ok
      \advance\count@\@ne
      \toks@\expandafter{\bbl@tempa}%
      \bbl@exp{%
        \\\SetString\bbl@templ{\romannumeral\count@}{\the\toks@}%
        \count@=\the\count@\relax}}}%
  \newcommand\SetCase[3][]{%
    \bbl@patchuclc
    \bbl@forlang\bbl@tempa{%
      \expandafter\bbl@encstring
        \csname\bbl@tempa @bbl@uclc\endcsname{\bbl@tempa##1}%
      \expandafter\bbl@encstring
        \csname\bbl@tempa @bbl@uc\endcsname{##2}%
      \expandafter\bbl@encstring
        \csname\bbl@tempa @bbl@lc\endcsname{##3}}}%
  \newcommand\SetHyphenMap[1]{%
    \bbl@forlang\bbl@tempa{%
      \expandafter\bbl@stringdef
        \csname\bbl@tempa @bbl@hyphenmap\endcsname{##1}}}
  \def\bbl@provstring##1##2{%
    \providecommand##1{##2}%
    \bbl@toglobal##1}%
  \global\let\bbl@scafter\@empty
  \let\StartBabelCommands\bbl@startcmds
  \ifx\BabelLanguages\relax
     \let\BabelLanguages\CurrentOption
  \fi
  \begingroup
  \let\bbl@screset\@nnil % local flag - disable 1st stopcommands
  \StartBabelCommands}
\def\bbl@startcmds{%
  \ifx\bbl@screset\@nnil\else
    \bbl@usehooks{stopcommands}{}%
  \fi
  \endgroup
  \begingroup
  \@ifstar
    {\ifx\bbl@opt@strings\@nnil
       \let\bbl@opt@strings\BabelStringsDefault
     \fi
     \bbl@startcmds@i}%
    \bbl@startcmds@i}
\def\bbl@startcmds@i#1#2{%
  \edef\bbl@L{\zap@space#1 \@empty}%
  \edef\bbl@G{\zap@space#2 \@empty}%
  \bbl@startcmds@ii}
\newcommand\bbl@startcmds@ii[1][\@empty]{%
  \let\SetString\@gobbletwo
  \let\bbl@stringdef\@gobbletwo
  \let\AfterBabelCommands\@gobble
  \ifx\@empty#1%
    \def\bbl@sc@label{generic}%
    \def\bbl@encstring##1##2{%
      \ProvideTextCommandDefault##1{##2}%
      \bbl@toglobal##1%
      \expandafter\bbl@toglobal\csname\string?\string##1\endcsname}%
    \let\bbl@sctest\in@true
  \else
    \let\bbl@sc@charset\space % <- zapped below
    \let\bbl@sc@fontenc\space % <-   "      "
    \def\bbl@tempa##1=##2\@nil{%
      \bbl@csarg\edef{sc@\zap@space##1 \@empty}{##2 }}%
    \bbl@vforeach{label=#1}{\bbl@tempa##1\@nil}%
    \def\bbl@tempa##1 ##2{% space -> comma
      ##1%
      \ifx\@empty##2\else\ifx,##1,\else,\fi\bbl@afterfi\bbl@tempa##2\fi}%
    \edef\bbl@sc@fontenc{\expandafter\bbl@tempa\bbl@sc@fontenc\@empty}%
    \edef\bbl@sc@label{\expandafter\zap@space\bbl@sc@label\@empty}%
    \edef\bbl@sc@charset{\expandafter\zap@space\bbl@sc@charset\@empty}%
    \def\bbl@encstring##1##2{%
      \bbl@foreach\bbl@sc@fontenc{%
        \bbl@ifunset{T@####1}%
          {}%
          {\ProvideTextCommand##1{####1}{##2}%
           \bbl@toglobal##1%
           \expandafter
           \bbl@toglobal\csname####1\string##1\endcsname}}}%
    \def\bbl@sctest{%
      \bbl@xin@{,\bbl@opt@strings,}{,\bbl@sc@label,\bbl@sc@fontenc,}}%
  \fi
  \ifx\bbl@opt@strings\@nnil         % ie, no strings key -> defaults
  \else\ifx\bbl@opt@strings\relax    % ie, strings=encoded
    \let\AfterBabelCommands\bbl@aftercmds
    \let\SetString\bbl@setstring
    \let\bbl@stringdef\bbl@encstring
  \else       % ie, strings=value
  \bbl@sctest
  \ifin@
    \let\AfterBabelCommands\bbl@aftercmds
    \let\SetString\bbl@setstring
    \let\bbl@stringdef\bbl@provstring
  \fi\fi\fi
  \bbl@scswitch
  \ifx\bbl@G\@empty
    \def\SetString##1##2{%
      \bbl@error{Missing group for string \string##1}%
        {You must assign strings to some category, typically\\%
         captions or extras, but you set none}}%
  \fi
  \ifx\@empty#1%
    \bbl@usehooks{defaultcommands}{}%
  \else
    \@expandtwoargs
    \bbl@usehooks{encodedcommands}{{\bbl@sc@charset}{\bbl@sc@fontenc}}%
  \fi}
\def\bbl@forlang#1#2{%
  \bbl@for#1\bbl@L{%
    \bbl@xin@{,#1,}{,\BabelLanguages,}%
    \ifin@#2\relax\fi}}
\def\bbl@scswitch{%
  \bbl@forlang\bbl@tempa{%
    \ifx\bbl@G\@empty\else
      \ifx\SetString\@gobbletwo\else
        \edef\bbl@GL{\bbl@G\bbl@tempa}%
        \bbl@xin@{,\bbl@GL,}{,\bbl@screset,}%
        \ifin@\else
          \global\expandafter\let\csname\bbl@GL\endcsname\@undefined
          \xdef\bbl@screset{\bbl@screset,\bbl@GL}%
        \fi
      \fi
    \fi}}
\AtEndOfPackage{%
  \def\bbl@forlang#1#2{\bbl@for#1\bbl@L{\bbl@ifunset{date#1}{}{#2}}}%
  \let\bbl@scswitch\relax}
\@onlypreamble\EndBabelCommands
\def\EndBabelCommands{%
  \bbl@usehooks{stopcommands}{}%
  \endgroup
  \endgroup
  \bbl@scafter}
\def\bbl@setstring#1#2{%
  \bbl@forlang\bbl@tempa{%
    \edef\bbl@LC{\bbl@tempa\bbl@stripslash#1}%
    \bbl@ifunset{\bbl@LC}% eg, \germanchaptername
      {\global\expandafter  % TODO - con \bbl@exp ?
       \bbl@add\csname\bbl@G\bbl@tempa\expandafter\endcsname\expandafter
         {\expandafter\bbl@scset\expandafter#1\csname\bbl@LC\endcsname}}%
      {}%
    \def\BabelString{#2}%
    \bbl@usehooks{stringprocess}{}%
    \expandafter\bbl@stringdef
      \csname\bbl@LC\expandafter\endcsname\expandafter{\BabelString}}}
\ifx\bbl@opt@strings\relax
  \def\bbl@scset#1#2{\def#1{\bbl@encoded#2}}
  \bbl@patchuclc
  \let\bbl@encoded\relax
  \def\bbl@encoded@uclc#1{%
    \@inmathwarn#1%
    \expandafter\ifx\csname\cf@encoding\string#1\endcsname\relax
      \expandafter\ifx\csname ?\string#1\endcsname\relax
        \TextSymbolUnavailable#1%
      \else
        \csname ?\string#1\endcsname
      \fi
    \else
      \csname\cf@encoding\string#1\endcsname
    \fi}
\else
  \def\bbl@scset#1#2{\def#1{#2}}
\fi
\def\bbl@aftercmds#1{%
  \toks@\expandafter{\bbl@scafter#1}%
  \xdef\bbl@scafter{\the\toks@}}
\newcommand\BabelLower[2]{% one to one.
  \ifnum\lccode#1=#2\else
    \babel@savevariable{\lccode#1}%
    \lccode#1=#2\relax
  \fi}
\newcommand\BabelLowerMM[4]{% many-to-many
  \@tempcnta=#1\relax
  \@tempcntb=#4\relax
  \def\bbl@tempa{%
    \ifnum\@tempcnta>#2\else
      \@expandtwoargs\BabelLower{\the\@tempcnta}{\the\@tempcntb}%
      \advance\@tempcnta#3\relax
      \advance\@tempcntb#3\relax
      \expandafter\bbl@tempa
    \fi}%
  \bbl@tempa}
\newcommand\BabelLowerMO[4]{% many-to-one
  \@tempcnta=#1\relax
  \def\bbl@tempa{%
    \ifnum\@tempcnta>#2\else
      \@expandtwoargs\BabelLower{\the\@tempcnta}{#4}%
      \advance\@tempcnta#3
      \expandafter\bbl@tempa
    \fi}%
  \bbl@tempa}
\AtEndOfPackage{%
  \ifx\bbl@opt@hyphenmap\@undefined
    \bbl@xin@{,}{\bbl@language@opts}%
    \chardef\bbl@opt@hyphenmap\ifin@4\else\@ne\fi
  \fi}
\bbl@trace{Macros related to glyphs}
\def\set@low@box#1{\setbox\tw@\hbox{,}\setbox\z@\hbox{#1}%
    \dimen\z@\ht\z@ \advance\dimen\z@ -\ht\tw@%
    \setbox\z@\hbox{\lower\dimen\z@ \box\z@}\ht\z@\ht\tw@ \dp\z@\dp\tw@}
\def\save@sf@q#1{\leavevmode
  \begingroup
    \edef\@SF{\spacefactor\the\spacefactor}#1\@SF
  \endgroup}
\ProvideTextCommand{\quotedblbase}{OT1}{%
  \save@sf@q{\set@low@box{\textquotedblright\/}%
    \box\z@\kern-.04em\bbl@allowhyphens}}
\ProvideTextCommandDefault{\quotedblbase}{%
  \UseTextSymbol{OT1}{\quotedblbase}}
\ProvideTextCommand{\quotesinglbase}{OT1}{%
  \save@sf@q{\set@low@box{\textquoteright\/}%
    \box\z@\kern-.04em\bbl@allowhyphens}}
\ProvideTextCommandDefault{\quotesinglbase}{%
  \UseTextSymbol{OT1}{\quotesinglbase}}
\ProvideTextCommand{\guillemotleft}{OT1}{%
  \ifmmode
    \ll
  \else
    \save@sf@q{\nobreak
      \raise.2ex\hbox{$\scriptscriptstyle\ll$}\bbl@allowhyphens}%
  \fi}
\ProvideTextCommand{\guillemotright}{OT1}{%
  \ifmmode
    \gg
  \else
    \save@sf@q{\nobreak
      \raise.2ex\hbox{$\scriptscriptstyle\gg$}\bbl@allowhyphens}%
  \fi}
\ProvideTextCommandDefault{\guillemotleft}{%
  \UseTextSymbol{OT1}{\guillemotleft}}
\ProvideTextCommandDefault{\guillemotright}{%
  \UseTextSymbol{OT1}{\guillemotright}}
\ProvideTextCommand{\guilsinglleft}{OT1}{%
  \ifmmode
    <%
  \else
    \save@sf@q{\nobreak
      \raise.2ex\hbox{$\scriptscriptstyle<$}\bbl@allowhyphens}%
  \fi}
\ProvideTextCommand{\guilsinglright}{OT1}{%
  \ifmmode
    >%
  \else
    \save@sf@q{\nobreak
      \raise.2ex\hbox{$\scriptscriptstyle>$}\bbl@allowhyphens}%
  \fi}
\ProvideTextCommandDefault{\guilsinglleft}{%
  \UseTextSymbol{OT1}{\guilsinglleft}}
\ProvideTextCommandDefault{\guilsinglright}{%
  \UseTextSymbol{OT1}{\guilsinglright}}
\DeclareTextCommand{\ij}{OT1}{%
  i\kern-0.02em\bbl@allowhyphens j}
\DeclareTextCommand{\IJ}{OT1}{%
  I\kern-0.02em\bbl@allowhyphens J}
\DeclareTextCommand{\ij}{T1}{\char188}
\DeclareTextCommand{\IJ}{T1}{\char156}
\ProvideTextCommandDefault{\ij}{%
  \UseTextSymbol{OT1}{\ij}}
\ProvideTextCommandDefault{\IJ}{%
  \UseTextSymbol{OT1}{\IJ}}
\def\crrtic@{\hrule height0.1ex width0.3em}
\def\crttic@{\hrule height0.1ex width0.33em}
\def\ddj@{%
  \setbox0\hbox{d}\dimen@=\ht0
  \advance\dimen@1ex
  \dimen@.45\dimen@
  \dimen@ii\expandafter\rem@pt\the\fontdimen\@ne\font\dimen@
  \advance\dimen@ii.5ex
  \leavevmode\rlap{\raise\dimen@\hbox{\kern\dimen@ii\vbox{\crrtic@}}}}
\def\DDJ@{%
  \setbox0\hbox{D}\dimen@=.55\ht0
  \dimen@ii\expandafter\rem@pt\the\fontdimen\@ne\font\dimen@
  \advance\dimen@ii.15ex %            correction for the dash position
  \advance\dimen@ii-.15\fontdimen7\font %     correction for cmtt font
  \dimen\thr@@\expandafter\rem@pt\the\fontdimen7\font\dimen@
  \leavevmode\rlap{\raise\dimen@\hbox{\kern\dimen@ii\vbox{\crttic@}}}}
\DeclareTextCommand{\dj}{OT1}{\ddj@ d}
\DeclareTextCommand{\DJ}{OT1}{\DDJ@ D}
\ProvideTextCommandDefault{\dj}{%
  \UseTextSymbol{OT1}{\dj}}
\ProvideTextCommandDefault{\DJ}{%
  \UseTextSymbol{OT1}{\DJ}}
\DeclareTextCommand{\SS}{OT1}{SS}
\ProvideTextCommandDefault{\SS}{\UseTextSymbol{OT1}{\SS}}
\ProvideTextCommandDefault{\glq}{%
  \textormath{\quotesinglbase}{\mbox{\quotesinglbase}}}
\ProvideTextCommand{\grq}{T1}{%
  \textormath{\kern\z@\textquoteleft}{\mbox{\textquoteleft}}}
\ProvideTextCommand{\grq}{TU}{%
  \textormath{\textquoteleft}{\mbox{\textquoteleft}}}
\ProvideTextCommand{\grq}{OT1}{%
  \save@sf@q{\kern-.0125em
    \textormath{\textquoteleft}{\mbox{\textquoteleft}}%
    \kern.07em\relax}}
\ProvideTextCommandDefault{\grq}{\UseTextSymbol{OT1}\grq}
\ProvideTextCommandDefault{\glqq}{%
  \textormath{\quotedblbase}{\mbox{\quotedblbase}}}
\ProvideTextCommand{\grqq}{T1}{%
  \textormath{\textquotedblleft}{\mbox{\textquotedblleft}}}
\ProvideTextCommand{\grqq}{TU}{%
  \textormath{\textquotedblleft}{\mbox{\textquotedblleft}}}
\ProvideTextCommand{\grqq}{OT1}{%
  \save@sf@q{\kern-.07em
    \textormath{\textquotedblleft}{\mbox{\textquotedblleft}}%
    \kern.07em\relax}}
\ProvideTextCommandDefault{\grqq}{\UseTextSymbol{OT1}\grqq}
\ProvideTextCommandDefault{\flq}{%
  \textormath{\guilsinglleft}{\mbox{\guilsinglleft}}}
\ProvideTextCommandDefault{\frq}{%
  \textormath{\guilsinglright}{\mbox{\guilsinglright}}}
\ProvideTextCommandDefault{\flqq}{%
  \textormath{\guillemotleft}{\mbox{\guillemotleft}}}
\ProvideTextCommandDefault{\frqq}{%
  \textormath{\guillemotright}{\mbox{\guillemotright}}}
\def\umlauthigh{%
  \def\bbl@umlauta##1{\leavevmode\bgroup%
      \expandafter\accent\csname\f@encoding dqpos\endcsname
      ##1\bbl@allowhyphens\egroup}%
  \let\bbl@umlaute\bbl@umlauta}
\def\umlautlow{%
  \def\bbl@umlauta{\protect\lower@umlaut}}
\def\umlautelow{%
  \def\bbl@umlaute{\protect\lower@umlaut}}
\umlauthigh
\expandafter\ifx\csname U@D\endcsname\relax
  \csname newdimen\endcsname\U@D
\fi
\def\lower@umlaut#1{%
  \leavevmode\bgroup
    \U@D 1ex%
    {\setbox\z@\hbox{%
      \expandafter\char\csname\f@encoding dqpos\endcsname}%
      \dimen@ -.45ex\advance\dimen@\ht\z@
      \ifdim 1ex<\dimen@ \fontdimen5\font\dimen@ \fi}%
    \expandafter\accent\csname\f@encoding dqpos\endcsname
    \fontdimen5\font\U@D #1%
  \egroup}
\AtBeginDocument{%
  \DeclareTextCompositeCommand{\"}{OT1}{a}{\bbl@umlauta{a}}%
  \DeclareTextCompositeCommand{\"}{OT1}{e}{\bbl@umlaute{e}}%
  \DeclareTextCompositeCommand{\"}{OT1}{i}{\bbl@umlaute{\i}}%
  \DeclareTextCompositeCommand{\"}{OT1}{\i}{\bbl@umlaute{\i}}%
  \DeclareTextCompositeCommand{\"}{OT1}{o}{\bbl@umlauta{o}}%
  \DeclareTextCompositeCommand{\"}{OT1}{u}{\bbl@umlauta{u}}%
  \DeclareTextCompositeCommand{\"}{OT1}{A}{\bbl@umlauta{A}}%
  \DeclareTextCompositeCommand{\"}{OT1}{E}{\bbl@umlaute{E}}%
  \DeclareTextCompositeCommand{\"}{OT1}{I}{\bbl@umlaute{I}}%
  \DeclareTextCompositeCommand{\"}{OT1}{O}{\bbl@umlauta{O}}%
  \DeclareTextCompositeCommand{\"}{OT1}{U}{\bbl@umlauta{U}}%
}
\ifx\l@english\@undefined
  \chardef\l@english\z@
\fi
\main@language{english}
\bbl@trace{Bidi layout}
\providecommand\IfBabelLayout[3]{#3}%
\newcommand\BabelPatchSection[1]{%
  \@ifundefined{#1}{}{%
    \bbl@exp{\let\<bbl@ss@#1>\<#1>}%
    \@namedef{#1}{%
      \@ifstar{\bbl@presec@s{#1}}%
              {\@dblarg{\bbl@presec@x{#1}}}}}}
\def\bbl@presec@x#1[#2]#3{%
  \bbl@exp{%
    \\\select@language@x{\bbl@main@language}%
    \\\@nameuse{bbl@sspre@#1}%
    \\\@nameuse{bbl@ss@#1}%
      [\\\foreignlanguage{\languagename}{\unexpanded{#2}}]%
      {\\\foreignlanguage{\languagename}{\unexpanded{#3}}}%
    \\\select@language@x{\languagename}}}
\def\bbl@presec@s#1#2{%
  \bbl@exp{%
    \\\select@language@x{\bbl@main@language}%
    \\\@nameuse{bbl@sspre@#1}%
    \\\@nameuse{bbl@ss@#1}*%
      {\\\foreignlanguage{\languagename}{\unexpanded{#2}}}%
    \\\select@language@x{\languagename}}}
\IfBabelLayout{sectioning}%
  {\BabelPatchSection{part}%
   \BabelPatchSection{chapter}%
   \BabelPatchSection{section}%
   \BabelPatchSection{subsection}%
   \BabelPatchSection{subsubsection}%
   \BabelPatchSection{paragraph}%
   \BabelPatchSection{subparagraph}%
   \def\babel@toc#1{%
     \select@language@x{\bbl@main@language}}}{}
\IfBabelLayout{captions}%
  {\BabelPatchSection{caption}}{}
\bbl@trace{Input engine specific macros}
\ifcase\bbl@engine
  \input txtbabel.def
\or
  \input luababel.def
\or
  \input xebabel.def
\fi
\bbl@trace{Creating languages and reading ini files}
\newcommand\babelprovide[2][]{%
  \let\bbl@savelangname\languagename
  \edef\bbl@savelocaleid{\the\localeid}%
  % Set name and locale id
  \def\languagename{#2}%
  \bbl@id@assign
  \chardef\localeid\@nameuse{bbl@id@@\languagename}%
  \let\bbl@KVP@captions\@nil
  \let\bbl@KVP@import\@nil
  \let\bbl@KVP@main\@nil
  \let\bbl@KVP@script\@nil
  \let\bbl@KVP@language\@nil
  \let\bbl@KVP@hyphenrules\@nil  % only for provide@new
  \let\bbl@KVP@mapfont\@nil
  \let\bbl@KVP@maparabic\@nil
  \let\bbl@KVP@mapdigits\@nil
  \let\bbl@KVP@intraspace\@nil
  \let\bbl@KVP@intrapenalty\@nil
  \bbl@forkv{#1}{%  TODO - error handling
    \in@{..}{##1}%
    \ifin@
      \bbl@renewinikey##1\@@{##2}%
    \else
      \bbl@csarg\def{KVP@##1}{##2}%
    \fi}%
  % == import, captions ==
  \ifx\bbl@KVP@import\@nil\else
    \bbl@exp{\\\bbl@ifblank{\bbl@KVP@import}}%
      {\begingroup
         \def\BabelBeforeIni##1##2{\gdef\bbl@KVP@import{##1}\endinput}%
         \InputIfFileExists{babel-#2.tex}{}{}%
       \endgroup}%
      {}%
  \fi
  \ifx\bbl@KVP@captions\@nil
    \let\bbl@KVP@captions\bbl@KVP@import
  \fi
  % Load ini
  \bbl@ifunset{date#2}%
    {\bbl@provide@new{#2}}%
    {\bbl@ifblank{#1}%
      {\bbl@error
        {If you want to modify `#2' you must tell how in\\%
         the optional argument. See the manual for the\\%
         available options.}%
        {Use this macro as documented}}%
      {\bbl@provide@renew{#2}}}%
  % Post tasks
  \bbl@exp{\\\babelensure[exclude=\\\today]{#2}}%
  \bbl@ifunset{bbl@ensure@\languagename}%
    {\bbl@exp{%
      \\\DeclareRobustCommand\<bbl@ensure@\languagename>[1]{%
        \\\foreignlanguage{\languagename}%
        {####1}}}}%
    {}%
  % At this point all parameters are defined if 'import'. Now we
  % execute some code depending on them. But what about if nothing was
  % imported? We just load the very basic parameters: ids and a few
  % more.
  \bbl@ifunset{bbl@lname@#2}%
    {\def\BabelBeforeIni##1##2{%
       \begingroup
         \catcode`\[=12 \catcode`\]=12 \catcode`\==12 %
         \let\bbl@ini@captions@aux\@gobbletwo
         \def\bbl@inidate ####1.####2.####3.####4\relax ####5####6{}%
         \bbl@read@ini{##1}{basic data}%
         \bbl@exportkey{chrng}{characters.ranges}{}%
         \bbl@exportkey{dgnat}{numbers.digits.native}{}%
         % \bbl@exportkey{hyphr}{typography.hyphenrules}{}%
         % \bbl@exportkey{intsp}{typography.intraspace}{}%
       \endgroup}%           boxed, to avoid extra spaces:
     {\setbox\z@\hbox{\InputIfFileExists{babel-#2.tex}{}{}}}}%
    {}%
  % -
  % == script, language ==
  % Override the values from ini or defines them
  \ifx\bbl@KVP@script\@nil\else
    \bbl@csarg\edef{sname@#2}{\bbl@KVP@script}%
  \fi
  \ifx\bbl@KVP@language\@nil\else
    \bbl@csarg\edef{lname@#2}{\bbl@KVP@language}%
  \fi
  % == mapfont ==
  % For bidi texts, to switch the font based on direction
  \ifx\bbl@KVP@mapfont\@nil\else
    \bbl@ifsamestring{\bbl@KVP@mapfont}{direction}{}%
      {\bbl@error{Option `\bbl@KVP@mapfont' unknown for\\%
                  mapfont. Use `direction'.%
                 {See the manual for details.}}}%
    \bbl@ifunset{bbl@lsys@\languagename}{\bbl@provide@lsys{\languagename}}{}%
    \bbl@ifunset{bbl@wdir@\languagename}{\bbl@provide@dirs{\languagename}}{}%
    \ifx\bbl@mapselect\@undefined
      \AtBeginDocument{%
        \expandafter\bbl@add\csname selectfont \endcsname{{\bbl@mapselect}}%
        {\selectfont}}%
      \def\bbl@mapselect{%
        \let\bbl@mapselect\relax
        \edef\bbl@prefontid{\fontid\font}}%
      \def\bbl@mapdir##1{%
        {\def\languagename{##1}%
         \let\bbl@ifrestoring\@firstoftwo % avoid font warning
         \bbl@switchfont
         \directlua{Babel.fontmap
           [\the\csname bbl@wdir@##1\endcsname]%
           [\bbl@prefontid]=\fontid\font}}}%
    \fi
    \bbl@exp{\\\bbl@add\\\bbl@mapselect{\\\bbl@mapdir{\languagename}}}%
  \fi
  % == intraspace, intrapenalty ==
  % For CJK, East Asian, Southeast Asian, if interspace in ini
  \ifx\bbl@KVP@intraspace\@nil\else % We can override the ini or set
    \bbl@csarg\edef{intsp@#2}{\bbl@KVP@intraspace}%
  \fi
  \ifcase\bbl@engine\or   % lua
    \bbl@ifunset{bbl@intsp@\languagename}{}%
      {\expandafter\ifx\csname bbl@intsp@\languagename\endcsname\@empty\else
         \bbl@xin@{\bbl@cs{sbcp@\languagename}}{Hant,Hans,Jpan,Kore,Kana}%
         \ifin@           % cjk
           \bbl@cjkintraspace
           \directlua{
               Babel = Babel or {}
               Babel.locale_props = Babel.locale_props or {}
               Babel.locale_props[\the\localeid].linebreak = 'c'
           }%
           \bbl@exp{\\\bbl@intraspace\bbl@cs{intsp@\languagename}\\\@@}%
           \ifx\bbl@KVP@intrapenalty\@nil
             \bbl@intrapenalty0\@@
           \fi
         \else            % sea
           \bbl@seaintraspace
           \bbl@exp{\\\bbl@intraspace\bbl@cs{intsp@\languagename}\\\@@}%
           \directlua{
              Babel = Babel or {}
              Babel.sea_ranges = Babel.sea_ranges or {}
              Babel.set_chranges('\bbl@cs{sbcp@\languagename}',
                                 '\bbl@cs{chrng@\languagename}')
           }%
           \ifx\bbl@KVP@intrapenalty\@nil
             \bbl@intrapenalty0\@@
           \fi
         \fi
       \fi
       \ifx\bbl@KVP@intrapenalty\@nil\else
         \expandafter\bbl@intrapenalty\bbl@KVP@intrapenalty\@@
       \fi}%
  \or                     % xe
    \bbl@xin@{\bbl@cs{sbcp@\languagename}}{Thai,Laoo,Khmr}%
    \ifin@                % sea (currently ckj not handled)
      \bbl@ifunset{bbl@intsp@\languagename}{}%
        {\expandafter\ifx\csname bbl@intsp@\languagename\endcsname\@empty\else
          \ifx\bbl@KVP@intraspace\@nil
             \bbl@exp{%
               \\\bbl@intraspace\bbl@cs{intsp@\languagename}\\\@@}%
          \fi
          \ifx\bbl@KVP@intrapenalty\@nil
            \bbl@intrapenalty0\@@
          \fi
        \fi
        \ifx\bbl@KVP@intraspace\@nil\else % We may override the ini
          \expandafter\bbl@intraspace\bbl@KVP@intraspace\@@
        \fi
        \ifx\bbl@KVP@intrapenalty\@nil\else
          \expandafter\bbl@intrapenalty\bbl@KVP@intrapenalty\@@
        \fi
        \ifx\bbl@ispacesize\@undefined
          \AtBeginDocument{%
            \expandafter\bbl@add
            \csname selectfont \endcsname{\bbl@ispacesize}}%
          \def\bbl@ispacesize{\bbl@cs{xeisp@\bbl@cs{sbcp@\languagename}}}%
        \fi}%
    \fi
  \fi
  % == maparabic ==
  % Native digits, if provided in ini (TeX level, xe and lua)
  \ifcase\bbl@engine\else
    \bbl@ifunset{bbl@dgnat@\languagename}{}%
      {\expandafter\ifx\csname bbl@dgnat@\languagename\endcsname\@empty\else
        \expandafter\expandafter\expandafter
        \bbl@setdigits\csname bbl@dgnat@\languagename\endcsname
        \ifx\bbl@KVP@maparabic\@nil\else
          \ifx\bbl@latinarabic\@undefined
            \expandafter\let\expandafter\@arabic
              \csname bbl@counter@\languagename\endcsname
          \else    % ie, if layout=counters, which redefines \@arabic
            \expandafter\let\expandafter\bbl@latinarabic
              \csname bbl@counter@\languagename\endcsname
          \fi
        \fi
      \fi}%
  \fi
  % == mapdigits ==
  % Native digits (lua level).
  \ifodd\bbl@engine
    \ifx\bbl@KVP@mapdigits\@nil\else
      \bbl@ifunset{bbl@dgnat@\languagename}{}%
        {\RequirePackage{luatexbase}%
         \bbl@activate@preotf
         \directlua{
           Babel = Babel or {}  %%% -> presets in luababel
           Babel.digits_mapped = true
           Babel.digits = Babel.digits or {}
           Babel.digits[\the\localeid] =
             table.pack(string.utfvalue('\bbl@cs{dgnat@\languagename}'))
           if not Babel.numbers then
             function Babel.numbers(head)
               local LOCALE = luatexbase.registernumber'bbl@attr@locale'
               local GLYPH = node.id'glyph'
               local inmath = false
               for item in node.traverse(head) do
                 if not inmath and item.id == GLYPH then
                   local temp = node.get_attribute(item, LOCALE)
                   if Babel.digits[temp] then
                     local chr = item.char
                     if chr > 47 and chr < 58 then
                       item.char = Babel.digits[temp][chr-47]
                     end
                   end
                 elseif item.id == node.id'math' then
                   inmath = (item.subtype == 0)
                 end
               end
               return head
             end
           end
        }}
    \fi
  \fi
  % == require.babel in ini ==
  % To load or reaload the babel-*.tex, if require.babel in ini
  \bbl@ifunset{bbl@rqtex@\languagename}{}%
    {\expandafter\ifx\csname bbl@rqtex@\languagename\endcsname\@empty\else
       \let\BabelBeforeIni\@gobbletwo
       \chardef\atcatcode=\catcode`\@
       \catcode`\@=11\relax
       \InputIfFileExists{babel-\bbl@cs{rqtex@\languagename}.tex}{}{}%
       \catcode`\@=\atcatcode
       \let\atcatcode\relax
     \fi}%
  % == main ==
  \ifx\bbl@KVP@main\@nil  % Restore only if not 'main'
    \let\languagename\bbl@savelangname
    \chardef\localeid\bbl@savelocaleid\relax
  \fi}
\def\bbl@setdigits#1#2#3#4#5{%
  \bbl@exp{%
    \def\<\languagename digits>####1{%       ie, \langdigits
      \<bbl@digits@\languagename>####1\\\@nil}%
    \def\<\languagename counter>####1{%      ie, \langcounter
      \\\expandafter\<bbl@counter@\languagename>%
      \\\csname c@####1\endcsname}%
    \def\<bbl@counter@\languagename>####1{% ie, \bbl@counter@lang
      \\\expandafter\<bbl@digits@\languagename>%
      \\\number####1\\\@nil}}%
  \def\bbl@tempa##1##2##3##4##5{%
    \bbl@exp{%    Wow, quite a lot of hashes! :-(
      \def\<bbl@digits@\languagename>########1{%
       \\\ifx########1\\\@nil              % ie, \bbl@digits@lang
       \\\else
         \\\ifx0########1#1%
         \\\else\\\ifx1########1#2%
         \\\else\\\ifx2########1#3%
         \\\else\\\ifx3########1#4%
         \\\else\\\ifx4########1#5%
         \\\else\\\ifx5########1##1%
         \\\else\\\ifx6########1##2%
         \\\else\\\ifx7########1##3%
         \\\else\\\ifx8########1##4%
         \\\else\\\ifx9########1##5%
         \\\else########1%
         \\\fi\\\fi\\\fi\\\fi\\\fi\\\fi\\\fi\\\fi\\\fi\\\fi
         \\\expandafter\<bbl@digits@\languagename>%
       \\\fi}}}%
  \bbl@tempa}
\def\bbl@provide@new#1{%
  \@namedef{date#1}{}% marks lang exists - required by \StartBabelCommands
  \@namedef{extras#1}{}%
  \@namedef{noextras#1}{}%
  \StartBabelCommands*{#1}{captions}%
    \ifx\bbl@KVP@captions\@nil %      and also if import, implicit
      \def\bbl@tempb##1{%             elt for \bbl@captionslist
        \ifx##1\@empty\else
          \bbl@exp{%
            \\\SetString\\##1{%
              \\\bbl@nocaption{\bbl@stripslash##1}{#1\bbl@stripslash##1}}}%
          \expandafter\bbl@tempb
        \fi}%
      \expandafter\bbl@tempb\bbl@captionslist\@empty
    \else
      \bbl@read@ini{\bbl@KVP@captions}{data}%  Here all letters cat = 11
      \bbl@after@ini
      \bbl@savestrings
    \fi
  \StartBabelCommands*{#1}{date}%
    \ifx\bbl@KVP@import\@nil
      \bbl@exp{%
        \\\SetString\\\today{\\\bbl@nocaption{today}{#1today}}}%
    \else
      \bbl@savetoday
      \bbl@savedate
    \fi
  \EndBabelCommands
  \bbl@exp{%
    \def\<#1hyphenmins>{%
      {\bbl@ifunset{bbl@lfthm@#1}{2}{\@nameuse{bbl@lfthm@#1}}}%
      {\bbl@ifunset{bbl@rgthm@#1}{3}{\@nameuse{bbl@rgthm@#1}}}}}%
  \bbl@provide@hyphens{#1}%
  \ifx\bbl@KVP@main\@nil\else
     \expandafter\main@language\expandafter{#1}%
  \fi}
\def\bbl@provide@renew#1{%
  \ifx\bbl@KVP@captions\@nil\else
    \StartBabelCommands*{#1}{captions}%
      \bbl@read@ini{\bbl@KVP@captions}{data}%   Here all letters cat = 11
      \bbl@after@ini
      \bbl@savestrings
    \EndBabelCommands
 \fi
 \ifx\bbl@KVP@import\@nil\else
   \StartBabelCommands*{#1}{date}%
     \bbl@savetoday
     \bbl@savedate
   \EndBabelCommands
  \fi
  % == hyphenrules ==
  \bbl@provide@hyphens{#1}}
\def\bbl@provide@hyphens#1{%
  \let\bbl@tempa\relax
  \ifx\bbl@KVP@hyphenrules\@nil\else
    \bbl@replace\bbl@KVP@hyphenrules{ }{,}%
    \bbl@foreach\bbl@KVP@hyphenrules{%
      \ifx\bbl@tempa\relax    %  if not yet found
        \bbl@ifsamestring{##1}{+}%
          {{\bbl@exp{\\\addlanguage\<l@##1>}}}%
          {}%
        \bbl@ifunset{l@##1}%
          {}%
          {\bbl@exp{\let\bbl@tempa\<l@##1>}}%
      \fi}%
  \fi
  \ifx\bbl@tempa\relax %        if no opt or no language in opt found
    \ifx\bbl@KVP@import\@nil\else % if importing
      \bbl@exp{%                and hyphenrules is not empty
        \\\bbl@ifblank{\@nameuse{bbl@hyphr@#1}}%
          {}%
          {\let\\\bbl@tempa\<l@\@nameuse{bbl@hyphr@\languagename}>}}%
    \fi
  \fi
  \bbl@ifunset{bbl@tempa}%       ie, relax or undefined
    {\bbl@ifunset{l@#1}%         no hyphenrules found - fallback
       {\bbl@exp{\\\adddialect\<l@#1>\language}}%
       {}}%                      so, l@<lang> is ok - nothing to do
    {\bbl@exp{\\\adddialect\<l@#1>\bbl@tempa}}% found in opt list or ini
  \bbl@ifunset{bbl@prehc@\languagename}%
    {}%  TODO - XeTeX, based on \babelfont and HyphenChar?
    {\ifodd\bbl@engine\bbl@exp{%
       \\\bbl@ifblank{\@nameuse{bbl@prehc@#1}}%
         {}%
         {\\\AddBabelHook[\languagename]{babel-prehc-\languagename}{patterns}%
           {\prehyphenchar=\@nameuse{bbl@prehc@\languagename}\relax}}}%
     \fi}}
\def\bbl@read@ini#1#2{%
  \openin1=babel-#1.ini        % FIXME - number must not be hardcoded
  \ifeof1
    \bbl@error
      {There is no ini file for the requested language\\%
       (#1). Perhaps you misspelled it or your installation\\%
       is not complete.}%
      {Fix the name or reinstall babel.}%
  \else
    \let\bbl@section\@empty
    \let\bbl@savestrings\@empty
    \let\bbl@savetoday\@empty
    \let\bbl@savedate\@empty
    \def\bbl@inipreread##1=##2\@@{%
      \bbl@trim@def\bbl@tempa{##1}% Redundant below !!
      % Move trims here ??
      \bbl@ifunset{bbl@KVP@\bbl@section..\bbl@tempa}%
        {\expandafter\bbl@inireader\bbl@tempa=##2\@@}%
        {}}%
    \let\bbl@inireader\bbl@iniskip
    \bbl@info{Importing #2 for \languagename\\%
             from babel-#1.ini. Reported}%
    \loop
    \if T\ifeof1F\fi T\relax % Trick, because inside \loop
      \endlinechar\m@ne
      \read1 to \bbl@line
      \endlinechar`\^^M
      \ifx\bbl@line\@empty\else
        \expandafter\bbl@iniline\bbl@line\bbl@iniline
      \fi
    \repeat
  \fi}
\def\bbl@iniline#1\bbl@iniline{%
  \@ifnextchar[\bbl@inisec{\@ifnextchar;\bbl@iniskip\bbl@inipreread}#1\@@}% ]
\def\bbl@iniskip#1\@@{}%      if starts with ;
\def\bbl@inisec[#1]#2\@@{%    if starts with opening bracket
  \def\bbl@elt##1##2{\bbl@inireader##1=##2\@@}%
  \@nameuse{bbl@renew@\bbl@section}%
  \global\bbl@csarg\let{renew@\bbl@section}\relax
  \@nameuse{bbl@secpost@\bbl@section}%  ends previous section
  \def\bbl@section{#1}%
  \def\bbl@elt##1##2{%
    \@namedef{bbl@KVP@#1..##1}{}}%
  \@nameuse{bbl@renew@#1}%
  \@nameuse{bbl@secpre@#1}%   starts current section
  \bbl@ifunset{bbl@inikv@#1}%
    {\let\bbl@inireader\bbl@iniskip}%
    {\bbl@exp{\let\\\bbl@inireader\<bbl@inikv@#1>}}}
\def\bbl@renewinikey#1..#2\@@#3{%
  \bbl@csarg\bbl@add{renew@#1}{\bbl@elt{#2}{#3}}}
\def\bbl@inikv#1=#2\@@{%     key=value
  \bbl@trim@def\bbl@tempa{#1}%
  \bbl@trim\toks@{#2}%
  \bbl@csarg\edef{@kv@\bbl@section.\bbl@tempa}{\the\toks@}}
\def\bbl@exportkey#1#2#3{%
  \bbl@ifunset{bbl@@kv@#2}%
    {\bbl@csarg\gdef{#1@\languagename}{#3}}%
    {\expandafter\ifx\csname bbl@@kv@#2\endcsname\@empty
       \bbl@csarg\gdef{#1@\languagename}{#3}%
     \else
       \bbl@exp{\global\let\<bbl@#1@\languagename>\<bbl@@kv@#2>}%
     \fi}}
\let\bbl@inikv@identification\bbl@inikv
\def\bbl@secpost@identification{%
  \bbl@ifunset{bbl@@kv@identification.name.opentype}%
    {\bbl@exportkey{lname}{identification.name.english}{}}%
    {\bbl@exportkey{lname}{identification.name.opentype}{}}%
  \bbl@exportkey{lbcp}{identification.tag.bcp47}{}%
  \bbl@exportkey{lotf}{identification.tag.opentype}{dflt}%
  \bbl@ifunset{bbl@@kv@identification.script.name.opentype}%
    {\bbl@exportkey{sname}{identification.script.name}{}}%
    {\bbl@exportkey{sname}{identification.script.name.opentype}{}}%
  \bbl@exportkey{sbcp}{identification.script.tag.bcp47}{}%
  \bbl@exportkey{sotf}{identification.script.tag.opentype}{DFLT}}
\let\bbl@inikv@typography\bbl@inikv
\let\bbl@inikv@characters\bbl@inikv
\let\bbl@inikv@numbers\bbl@inikv
\def\bbl@after@ini{%
  \bbl@exportkey{lfthm}{typography.lefthyphenmin}{2}%
  \bbl@exportkey{rgthm}{typography.righthyphenmin}{3}%
  \bbl@exportkey{prehc}{typography.prehyphenchar}{}%
  \bbl@exportkey{hyphr}{typography.hyphenrules}{}%
  \bbl@exportkey{intsp}{typography.intraspace}{}%
  \bbl@exportkey{jstfy}{typography.justify}{w}%
  \bbl@exportkey{chrng}{characters.ranges}{}%
  \bbl@exportkey{dgnat}{numbers.digits.native}{}%
  \bbl@exportkey{rqtex}{identification.require.babel}{}%
  \bbl@xin@{0.5}{\@nameuse{bbl@@kv@identification.version}}%
  \ifin@
    \bbl@warning{%
      There are neither captions nor date in `\languagename'.\\%
      It may not be suitable for proper typesetting, and it\\%
      could change. Reported}%
  \fi
  \bbl@xin@{0.9}{\@nameuse{bbl@@kv@identification.version}}%
  \ifin@
    \bbl@warning{%
      The `\languagename' date format may not be suitable\\%
      for proper typesetting, and therefore it very likely will\\%
      change in a future release. Reported}%
  \fi
  \bbl@toglobal\bbl@savetoday
  \bbl@toglobal\bbl@savedate}
\ifcase\bbl@engine
  \bbl@csarg\def{inikv@captions.licr}#1=#2\@@{%
    \bbl@ini@captions@aux{#1}{#2}}
\else
  \def\bbl@inikv@captions#1=#2\@@{%
    \bbl@ini@captions@aux{#1}{#2}}
\fi
\def\bbl@ini@captions@aux#1#2{%
  \bbl@trim@def\bbl@tempa{#1}%
  \bbl@ifblank{#2}%
    {\bbl@exp{%
       \toks@{\\\bbl@nocaption{\bbl@tempa}{\languagename\bbl@tempa name}}}}%
    {\bbl@trim\toks@{#2}}%
  \bbl@exp{%
    \\\bbl@add\\\bbl@savestrings{%
      \\\SetString\<\bbl@tempa name>{\the\toks@}}}}
\bbl@csarg\def{inikv@date.gregorian}#1=#2\@@{%       for defaults
  \bbl@inidate#1...\relax{#2}{}}
\bbl@csarg\def{inikv@date.islamic}#1=#2\@@{%
  \bbl@inidate#1...\relax{#2}{islamic}}
\bbl@csarg\def{inikv@date.hebrew}#1=#2\@@{%
  \bbl@inidate#1...\relax{#2}{hebrew}}
\bbl@csarg\def{inikv@date.persian}#1=#2\@@{%
  \bbl@inidate#1...\relax{#2}{persian}}
\bbl@csarg\def{inikv@date.indian}#1=#2\@@{%
  \bbl@inidate#1...\relax{#2}{indian}}
\ifcase\bbl@engine
  \bbl@csarg\def{inikv@date.gregorian.licr}#1=#2\@@{%  override
    \bbl@inidate#1...\relax{#2}{}}
  \bbl@csarg\def{secpre@date.gregorian.licr}{%         discard uni
    \ifcase\bbl@engine\let\bbl@savedate\@empty\fi}
\fi
\def\bbl@inidate#1.#2.#3.#4\relax#5#6{% TODO - ignore with 'captions'
  \bbl@trim@def\bbl@tempa{#1.#2}%
  \bbl@ifsamestring{\bbl@tempa}{months.wide}%      to savedate
    {\bbl@trim@def\bbl@tempa{#3}%
     \bbl@trim\toks@{#5}%
     \bbl@exp{%
      \\\bbl@add\\\bbl@savedate{%
        \\\SetString\<month\romannumeral\bbl@tempa#6name>{\the\toks@}}}}%
    {\bbl@ifsamestring{\bbl@tempa}{date.long}%     defined now
      {\bbl@trim@def\bbl@toreplace{#5}%
       \bbl@TG@@date
       \global\bbl@csarg\let{date@\languagename}\bbl@toreplace
       \bbl@exp{%
         \gdef\<\languagename date>{\\\protect\<\languagename date >}%
         \gdef\<\languagename date >####1####2####3{%
           \\\bbl@usedategrouptrue
           \<bbl@ensure@\languagename>{%
             \<bbl@date@\languagename>{####1}{####2}{####3}}}%
         \\\bbl@add\\\bbl@savetoday{%
           \\\SetString\\\today{%
             \<\languagename date>{\\\the\year}{\\\the\month}{\\\the\day}}}}}}%
      {}}
\let\bbl@calendar\@empty
\newcommand\BabelDateSpace{\nobreakspace}
\newcommand\BabelDateDot{.\@}
\newcommand\BabelDated[1]{{\number#1}}
\newcommand\BabelDatedd[1]{{\ifnum#1<10 0\fi\number#1}}
\newcommand\BabelDateM[1]{{\number#1}}
\newcommand\BabelDateMM[1]{{\ifnum#1<10 0\fi\number#1}}
\newcommand\BabelDateMMMM[1]{{%
  \csname month\romannumeral#1\bbl@calendar name\endcsname}}%
\newcommand\BabelDatey[1]{{\number#1}}%
\newcommand\BabelDateyy[1]{{%
  \ifnum#1<10 0\number#1 %
  \else\ifnum#1<100 \number#1 %
  \else\ifnum#1<1000 \expandafter\@gobble\number#1 %
  \else\ifnum#1<10000 \expandafter\@gobbletwo\number#1 %
  \else
    \bbl@error
      {Currently two-digit years are restricted to the\\
       range 0-9999.}%
      {There is little you can do. Sorry.}%
  \fi\fi\fi\fi}}
\newcommand\BabelDateyyyy[1]{{\number#1}} % FIXME - add leading 0
\def\bbl@replace@finish@iii#1{%
  \bbl@exp{\def\\#1####1####2####3{\the\toks@}}}
\def\bbl@TG@@date{%
  \bbl@replace\bbl@toreplace{[ ]}{\BabelDateSpace{}}%
  \bbl@replace\bbl@toreplace{[.]}{\BabelDateDot{}}%
  \bbl@replace\bbl@toreplace{[d]}{\BabelDated{####3}}%
  \bbl@replace\bbl@toreplace{[dd]}{\BabelDatedd{####3}}%
  \bbl@replace\bbl@toreplace{[M]}{\BabelDateM{####2}}%
  \bbl@replace\bbl@toreplace{[MM]}{\BabelDateMM{####2}}%
  \bbl@replace\bbl@toreplace{[MMMM]}{\BabelDateMMMM{####2}}%
  \bbl@replace\bbl@toreplace{[y]}{\BabelDatey{####1}}%
  \bbl@replace\bbl@toreplace{[yy]}{\BabelDateyy{####1}}%
  \bbl@replace\bbl@toreplace{[yyyy]}{\BabelDateyyyy{####1}}%
  \bbl@replace@finish@iii\bbl@toreplace}
\def\bbl@provide@lsys#1{%
  \bbl@ifunset{bbl@lname@#1}%
    {\bbl@ini@basic{#1}}%
    {}%
  \bbl@csarg\let{lsys@#1}\@empty
  \bbl@ifunset{bbl@sname@#1}{\bbl@csarg\gdef{sname@#1}{Default}}{}%
  \bbl@ifunset{bbl@sotf@#1}{\bbl@csarg\gdef{sotf@#1}{DFLT}}{}%
  \bbl@csarg\bbl@add@list{lsys@#1}{Script=\bbl@cs{sname@#1}}%
  \bbl@ifunset{bbl@lname@#1}{}%
    {\bbl@csarg\bbl@add@list{lsys@#1}{Language=\bbl@cs{lname@#1}}}%
  \bbl@csarg\bbl@toglobal{lsys@#1}}
\def\bbl@ini@basic#1{%
  \def\BabelBeforeIni##1##2{%
    \begingroup
      \bbl@add\bbl@secpost@identification{\closein1 }%
      \catcode`\[=12 \catcode`\]=12 \catcode`\==12 %
      \bbl@read@ini{##1}{font and identification data}%
      \endinput          % babel- .tex may contain onlypreamble's
    \endgroup}%            boxed, to avoid extra spaces:
  {\setbox\z@\hbox{\InputIfFileExists{babel-#1.tex}{}{}}}}
\newcommand\babeladjust[1]{%  TODO. Error handling.
  \bbl@forkv{#1}{\@nameuse{bbl@ADJ@##1@##2}}}
\def\bbl@adjust@lua#1#2{%
  \ifvmode
    \ifnum\currentgrouplevel=\z@
      \directlua{ Babel.#2 }%
      \expandafter\expandafter\expandafter\@gobble
    \fi
  \fi
  {\bbl@error   % The error is gobbled if everything went ok.
     {Currently, #1 related features can be adjusted only\\%
      in the main vertical list.}%
     {Maybe things change in the future, but this is what it is.}}}
\@namedef{bbl@ADJ@bidi.mirroring@on}{%
  \bbl@adjust@lua{bidi}{mirroring_enabled=true}}
\@namedef{bbl@ADJ@bidi.mirroring@off}{%
  \bbl@adjust@lua{bidi}{mirroring_enabled=false}}
\@namedef{bbl@ADJ@bidi.text@on}{%
  \bbl@adjust@lua{bidi}{bidi_enabled=true}}
\@namedef{bbl@ADJ@bidi.text@off}{%
  \bbl@adjust@lua{bidi}{bidi_enabled=false}}
\@namedef{bbl@ADJ@bidi.mapdigits@on}{%
  \bbl@adjust@lua{bidi}{digits_mapped=true}}
\@namedef{bbl@ADJ@bidi.mapdigits@off}{%
  \bbl@adjust@lua{bidi}{digits_mapped=false}}
\@namedef{bbl@ADJ@linebreak.sea@on}{%
  \bbl@adjust@lua{linebreak}{sea_enabled=true}}
\@namedef{bbl@ADJ@linebreak.sea@off}{%
  \bbl@adjust@lua{linebreak}{sea_enabled=false}}
\@namedef{bbl@ADJ@linebreak.cjk@on}{%
  \bbl@adjust@lua{linebreak}{cjk_enabled=true}}
\@namedef{bbl@ADJ@linebreak.cjk@off}{%
  \bbl@adjust@lua{linebreak}{cjk_enabled=false}}
\def\bbl@adjust@layout#1{%
  \ifvmode
    #1%
    \expandafter\@gobble
  \fi
  {\bbl@error   % The error is gobbled if everything went ok.
     {Currently, layout related features can be adjusted only\\%
      in vertical mode.}%
     {Maybe things change in the future, but this is what it is.}}}
\@namedef{bbl@ADJ@layout.tabular@on}{%
  \bbl@adjust@layout{\let\@tabular\bbl@NL@@tabular}}
\@namedef{bbl@ADJ@layout.tabular@off}{%
  \bbl@adjust@layout{\let\@tabular\bbl@OL@@tabular}}
\@namedef{bbl@ADJ@layout.lists@on}{%
  \bbl@adjust@layout{\let\list\bbl@NL@list}}
\@namedef{bbl@ADJ@layout.lists@on}{%
  \bbl@adjust@layout{\let\list\bbl@OL@list}}
{\def\format{lplain}
\ifx\fmtname\format
\else
  \def\format{LaTeX2e}
  \ifx\fmtname\format
  \else
    \aftergroup\endinput
  \fi
\fi}
\bbl@trace{Cross referencing macros}
\ifx\bbl@opt@safe\@empty\else
  \def\@newl@bel#1#2#3{%
   {\@safe@activestrue
    \bbl@ifunset{#1@#2}%
       \relax
       {\gdef\@multiplelabels{%
          \@latex@warning@no@line{There were multiply-defined labels}}%
        \@latex@warning@no@line{Label `#2' multiply defined}}%
    \global\@namedef{#1@#2}{#3}}}
  \CheckCommand*\@testdef[3]{%
    \def\reserved@a{#3}%
    \expandafter\ifx\csname#1@#2\endcsname\reserved@a
    \else
      \@tempswatrue
    \fi}
  \def\@testdef#1#2#3{%
    \@safe@activestrue
    \expandafter\let\expandafter\bbl@tempa\csname #1@#2\endcsname
    \def\bbl@tempb{#3}%
    \@safe@activesfalse
    \ifx\bbl@tempa\relax
    \else
      \edef\bbl@tempa{\expandafter\strip@prefix\meaning\bbl@tempa}%
    \fi
    \edef\bbl@tempb{\expandafter\strip@prefix\meaning\bbl@tempb}%
    \ifx\bbl@tempa\bbl@tempb
    \else
      \@tempswatrue
    \fi}
\fi
\bbl@xin@{R}\bbl@opt@safe
\ifin@
  \bbl@redefinerobust\ref#1{%
    \@safe@activestrue\org@ref{#1}\@safe@activesfalse}
  \bbl@redefinerobust\pageref#1{%
    \@safe@activestrue\org@pageref{#1}\@safe@activesfalse}
\else
  \let\org@ref\ref
  \let\org@pageref\pageref
\fi
\bbl@xin@{B}\bbl@opt@safe
\ifin@
  \bbl@redefine\@citex[#1]#2{%
    \@safe@activestrue\edef\@tempa{#2}\@safe@activesfalse
    \org@@citex[#1]{\@tempa}}
  \AtBeginDocument{%
    \@ifpackageloaded{natbib}{%
    \def\@citex[#1][#2]#3{%
      \@safe@activestrue\edef\@tempa{#3}\@safe@activesfalse
      \org@@citex[#1][#2]{\@tempa}}%
    }{}}
  \AtBeginDocument{%
    \@ifpackageloaded{cite}{%
      \def\@citex[#1]#2{%
        \@safe@activestrue\org@@citex[#1]{#2}\@safe@activesfalse}%
      }{}}
  \bbl@redefine\nocite#1{%
    \@safe@activestrue\org@nocite{#1}\@safe@activesfalse}
  \bbl@redefine\bibcite{%
    \bbl@cite@choice
    \bibcite}
  \def\bbl@bibcite#1#2{%
    \org@bibcite{#1}{\@safe@activesfalse#2}}
  \def\bbl@cite@choice{%
    \global\let\bibcite\bbl@bibcite
    \@ifpackageloaded{natbib}{\global\let\bibcite\org@bibcite}{}%
    \@ifpackageloaded{cite}{\global\let\bibcite\org@bibcite}{}%
    \global\let\bbl@cite@choice\relax}
  \AtBeginDocument{\bbl@cite@choice}
  \bbl@redefine\@bibitem#1{%
    \@safe@activestrue\org@@bibitem{#1}\@safe@activesfalse}
\else
  \let\org@nocite\nocite
  \let\org@@citex\@citex
  \let\org@bibcite\bibcite
  \let\org@@bibitem\@bibitem
\fi
\bbl@trace{Marks}
\IfBabelLayout{sectioning}
  {\ifx\bbl@opt@headfoot\@nnil
     \g@addto@macro\@resetactivechars{%
       \set@typeset@protect
       \expandafter\select@language@x\expandafter{\bbl@main@language}%
       \let\protect\noexpand
       \edef\thepage{%
         \noexpand\babelsublr{\unexpanded\expandafter{\thepage}}}}%
   \fi}
  {\ifbbl@single\else
     \bbl@ifunset{markright }\bbl@redefine\bbl@redefinerobust
     \markright#1{%
       \bbl@ifblank{#1}%
         {\org@markright{}}%
         {\toks@{#1}%
          \bbl@exp{%
            \\\org@markright{\\\protect\\\foreignlanguage{\languagename}%
              {\\\protect\\\bbl@restore@actives\the\toks@}}}}}%
     \ifx\@mkboth\markboth
       \def\bbl@tempc{\let\@mkboth\markboth}
     \else
       \def\bbl@tempc{}
     \fi
     \bbl@ifunset{markboth }\bbl@redefine\bbl@redefinerobust
     \markboth#1#2{%
       \protected@edef\bbl@tempb##1{%
         \protect\foreignlanguage
         {\languagename}{\protect\bbl@restore@actives##1}}%
       \bbl@ifblank{#1}%
         {\toks@{}}%
         {\toks@\expandafter{\bbl@tempb{#1}}}%
       \bbl@ifblank{#2}%
         {\@temptokena{}}%
         {\@temptokena\expandafter{\bbl@tempb{#2}}}%
       \bbl@exp{\\\org@markboth{\the\toks@}{\the\@temptokena}}}
       \bbl@tempc
     \fi}  % end ifbbl@single, end \IfBabelLayout
\bbl@trace{Preventing clashes with other packages}
\bbl@xin@{R}\bbl@opt@safe
\ifin@
  \AtBeginDocument{%
    \@ifpackageloaded{ifthen}{%
      \bbl@redefine@long\ifthenelse#1#2#3{%
        \let\bbl@temp@pref\pageref
        \let\pageref\org@pageref
        \let\bbl@temp@ref\ref
        \let\ref\org@ref
        \@safe@activestrue
        \org@ifthenelse{#1}%
          {\let\pageref\bbl@temp@pref
           \let\ref\bbl@temp@ref
           \@safe@activesfalse
           #2}%
          {\let\pageref\bbl@temp@pref
           \let\ref\bbl@temp@ref
           \@safe@activesfalse
           #3}%
        }%
      }{}%
    }
  \AtBeginDocument{%
    \@ifpackageloaded{varioref}{%
      \bbl@redefine\@@vpageref#1[#2]#3{%
        \@safe@activestrue
        \org@@@vpageref{#1}[#2]{#3}%
        \@safe@activesfalse}%
      \bbl@redefine\vrefpagenum#1#2{%
        \@safe@activestrue
        \org@vrefpagenum{#1}{#2}%
        \@safe@activesfalse}%
      \expandafter\def\csname Ref \endcsname#1{%
        \protected@edef\@tempa{\org@ref{#1}}\expandafter\MakeUppercase\@tempa}
      }{}%
    }
\fi
\AtEndOfPackage{%
  \AtBeginDocument{%
    \@ifpackageloaded{hhline}%
      {\expandafter\ifx\csname normal@char\string:\endcsname\relax
       \else
         \makeatletter
         \def\@currname{hhline}\input{hhline.sty}\makeatother
       \fi}%
      {}}}
\AtBeginDocument{%
  \ifx\pdfstringdefDisableCommands\@undefined\else
    \pdfstringdefDisableCommands{\languageshorthands{system}}%
  \fi}
\DeclareRobustCommand{\FOREIGNLANGUAGE}[1]{%
  \lowercase{\foreignlanguage{#1}}}
\def\substitutefontfamily#1#2#3{%
  \lowercase{\immediate\openout15=#1#2.fd\relax}%
  \immediate\write15{%
    \string\ProvidesFile{#1#2.fd}%
    [\the\year/\two@digits{\the\month}/\two@digits{\the\day}
     \space generated font description file]^^J
    \string\DeclareFontFamily{#1}{#2}{}^^J
    \string\DeclareFontShape{#1}{#2}{m}{n}{<->ssub * #3/m/n}{}^^J
    \string\DeclareFontShape{#1}{#2}{m}{it}{<->ssub * #3/m/it}{}^^J
    \string\DeclareFontShape{#1}{#2}{m}{sl}{<->ssub * #3/m/sl}{}^^J
    \string\DeclareFontShape{#1}{#2}{m}{sc}{<->ssub * #3/m/sc}{}^^J
    \string\DeclareFontShape{#1}{#2}{b}{n}{<->ssub * #3/bx/n}{}^^J
    \string\DeclareFontShape{#1}{#2}{b}{it}{<->ssub * #3/bx/it}{}^^J
    \string\DeclareFontShape{#1}{#2}{b}{sl}{<->ssub * #3/bx/sl}{}^^J
    \string\DeclareFontShape{#1}{#2}{b}{sc}{<->ssub * #3/bx/sc}{}^^J
    }%
  \closeout15
  }
\@onlypreamble\substitutefontfamily
\bbl@trace{Encoding and fonts}
\newcommand\BabelNonASCII{LGR,X2,OT2,OT3,OT6,LHE,LWN,LMA,LMC,LMS,LMU,PU,PD1}
\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 text non-ascii enc?
    \ifin@\else
      \lowercase{\bbl@xin@{,#1enc.def,}{,\@filelist,}}%
    \fi}%
  \ifin@ % if a text non-ascii has been loaded
    \def\ensureascii#1{{\fontencoding{OT1}\selectfont#1}}%
    \DeclareTextCommandDefault{\TeX}{\org@TeX}%
    \DeclareTextCommandDefault{\LaTeX}{\org@LaTeX}%
    \def\bbl@tempb#1\@@{\uppercase{\bbl@tempc#1}ENC.DEF\@empty\@@}%
    \def\bbl@tempc#1ENC.DEF#2\@@{%
      \ifx\@empty#2\else
        \bbl@ifunset{T@#1}%
          {}%
          {\bbl@xin@{,#1,}{,\BabelNonASCII,\BabelNonText,}%
           \ifin@
             \DeclareTextCommand{\TeX}{#1}{\ensureascii{\org@TeX}}%
             \DeclareTextCommand{\LaTeX}{#1}{\ensureascii{\org@LaTeX}}%
           \else
             \def\ensureascii##1{{\fontencoding{#1}\selectfont##1}}%
           \fi}%
      \fi}%
    \bbl@foreach\@filelist{\bbl@tempb#1\@@}%  TODO - \@@ de mas??
    \bbl@xin@{,\cf@encoding,}{,\BabelNonASCII,\BabelNonText,}%
    \ifin@\else
      \edef\ensureascii#1{{%
        \noexpand\fontencoding{\cf@encoding}\noexpand\selectfont#1}}%
    \fi
  \fi}
\AtEndOfPackage{\edef\latinencoding{\cf@encoding}}
\AtBeginDocument{%
  \@ifpackageloaded{fontspec}%
    {\xdef\latinencoding{%
       \ifx\UTFencname\@undefined
         EU\ifcase\bbl@engine\or2\or1\fi
       \else
         \UTFencname
       \fi}}%
    {\gdef\latinencoding{OT1}%
     \ifx\cf@encoding\bbl@t@one
       \xdef\latinencoding{\bbl@t@one}%
     \else
       \@ifl@aded{def}{t1enc}{\xdef\latinencoding{\bbl@t@one}}{}%
     \fi}}
\DeclareRobustCommand{\latintext}{%
  \fontencoding{\latinencoding}\selectfont
  \def\encodingdefault{\latinencoding}}
\ifx\@undefined\DeclareTextFontCommand
  \DeclareRobustCommand{\textlatin}[1]{\leavevmode{\latintext #1}}
\else
  \DeclareTextFontCommand{\textlatin}{\latintext}
\fi
\bbl@trace{Basic (internal) bidi support}
\def\bbl@alscripts{,Arabic,Syriac,Thaana,}
\def\bbl@rscripts{%
  ,Imperial Aramaic,Avestan,Cypriot,Hatran,Hebrew,%
  Old Hungarian,Old Hungarian,Lydian,Mandaean,Manichaean,%
  Manichaean,Meroitic Cursive,Meroitic,Old North Arabian,%
  Nabataean,N'Ko,Orkhon,Palmyrene,Inscriptional Pahlavi,%
  Psalter Pahlavi,Phoenician,Inscriptional Parthian,Samaritan,%
  Old South Arabian,}%
\def\bbl@provide@dirs#1{%
  \bbl@xin@{\csname bbl@sname@#1\endcsname}{\bbl@alscripts\bbl@rscripts}%
  \ifin@
    \global\bbl@csarg\chardef{wdir@#1}\@ne
    \bbl@xin@{\csname bbl@sname@#1\endcsname}{\bbl@alscripts}%
    \ifin@
      \global\bbl@csarg\chardef{wdir@#1}\tw@  % useless in xetex
    \fi
  \else
    \global\bbl@csarg\chardef{wdir@#1}\z@
  \fi
  \ifodd\bbl@engine
    \bbl@csarg\ifcase{wdir@#1}%
      \directlua{ Babel.locale_props[\the\localeid].textdir = 'l' }%
    \or
      \directlua{ Babel.locale_props[\the\localeid].textdir = 'r' }%
    \or
      \directlua{ Babel.locale_props[\the\localeid].textdir = 'al' }%
    \fi
  \fi}
\def\bbl@switchdir{%
  \bbl@ifunset{bbl@lsys@\languagename}{\bbl@provide@lsys{\languagename}}{}%
  \bbl@ifunset{bbl@wdir@\languagename}{\bbl@provide@dirs{\languagename}}{}%
  \bbl@exp{\\\bbl@setdirs\bbl@cs{wdir@\languagename}}}
\def\bbl@setdirs#1{% TODO - math
  \ifcase\bbl@select@type % TODO - strictly, not the right test
    \bbl@bodydir{#1}%
    \bbl@pardir{#1}%
  \fi
  \bbl@textdir{#1}}
\ifodd\bbl@engine  % luatex=1
  \AddBabelHook{babel-bidi}{afterextras}{\bbl@switchdir}
  \DisableBabelHook{babel-bidi}
  \chardef\bbl@thetextdir\z@
  \chardef\bbl@thepardir\z@
  \def\bbl@getluadir#1{%
    \directlua{
      if tex.#1dir == 'TLT' then
        tex.sprint('0')
      elseif tex.#1dir == 'TRT' then
        tex.sprint('1')
      end}}
  \def\bbl@setluadir#1#2#3{% 1=text/par.. 2=\textdir.. 3=0 lr/1 rl
    \ifcase#3\relax
      \ifcase\bbl@getluadir{#1}\relax\else
        #2 TLT\relax
      \fi
    \else
      \ifcase\bbl@getluadir{#1}\relax
        #2 TRT\relax
      \fi
    \fi}
  \def\bbl@textdir#1{%
    \bbl@setluadir{text}\textdir{#1}%
    \chardef\bbl@thetextdir#1\relax
    \setattribute\bbl@attr@dir{\numexpr\bbl@thepardir*3+#1}}
  \def\bbl@pardir#1{%
    \bbl@setluadir{par}\pardir{#1}%
    \chardef\bbl@thepardir#1\relax}
  \def\bbl@bodydir{\bbl@setluadir{body}\bodydir}
  \def\bbl@pagedir{\bbl@setluadir{page}\pagedir}
  \def\bbl@dirparastext{\pardir\the\textdir\relax}%   %%%%
  % Sadly, we have to deal with boxes in math with basic.
  % Activated every math with the package option bidi=:
  \def\bbl@mathboxdir{%
    \ifcase\bbl@thetextdir\relax
      \everyhbox{\textdir TLT\relax}%
    \else
      \everyhbox{\textdir TRT\relax}%
    \fi}
\else % pdftex=0, xetex=2
  \AddBabelHook{babel-bidi}{afterextras}{\bbl@switchdir}
  \DisableBabelHook{babel-bidi}
  \newcount\bbl@dirlevel
  \chardef\bbl@thetextdir\z@
  \chardef\bbl@thepardir\z@
  \def\bbl@textdir#1{%
    \ifcase#1\relax
       \chardef\bbl@thetextdir\z@
       \bbl@textdir@i\beginL\endL
     \else
       \chardef\bbl@thetextdir\@ne
       \bbl@textdir@i\beginR\endR
    \fi}
  \def\bbl@textdir@i#1#2{%
    \ifhmode
      \ifnum\currentgrouplevel>\z@
        \ifnum\currentgrouplevel=\bbl@dirlevel
          \bbl@error{Multiple bidi settings inside a group}%
            {I'll insert a new group, but expect wrong results.}%
          \bgroup\aftergroup#2\aftergroup\egroup
        \else
          \ifcase\currentgrouptype\or % 0 bottom
            \aftergroup#2% 1 simple {}
          \or
            \bgroup\aftergroup#2\aftergroup\egroup % 2 hbox
          \or
            \bgroup\aftergroup#2\aftergroup\egroup % 3 adj hbox
          \or\or\or % vbox vtop align
          \or
            \bgroup\aftergroup#2\aftergroup\egroup % 7 noalign
          \or\or\or\or\or\or % output math disc insert vcent mathchoice
          \or
            \aftergroup#2% 14 \begingroup
          \else
            \bgroup\aftergroup#2\aftergroup\egroup % 15 adj
          \fi
        \fi
        \bbl@dirlevel\currentgrouplevel
      \fi
      #1%
    \fi}
  \def\bbl@pardir#1{\chardef\bbl@thepardir#1\relax}
  \let\bbl@bodydir\@gobble
  \let\bbl@pagedir\@gobble
  \def\bbl@dirparastext{\chardef\bbl@thepardir\bbl@thetextdir}
  \def\bbl@xebidipar{%
    \let\bbl@xebidipar\relax
    \TeXXeTstate\@ne
    \def\bbl@xeeverypar{%
      \ifcase\bbl@thepardir
        \ifcase\bbl@thetextdir\else\beginR\fi
      \else
        {\setbox\z@\lastbox\beginR\box\z@}%
      \fi}%
    \let\bbl@severypar\everypar
    \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}}
\AtBeginDocument{%
  \ifx\pdfstringdefDisableCommands\@undefined\else
    \ifx\pdfstringdefDisableCommands\relax\else
      \pdfstringdefDisableCommands{\let\babelsublr\@firstofone}%
    \fi
  \fi}
\bbl@trace{Local Language Configuration}
\ifx\loadlocalcfg\@undefined
  \@ifpackagewith{babel}{noconfigs}%
    {\let\loadlocalcfg\@gobble}%
    {\def\loadlocalcfg#1{%
      \InputIfFileExists{#1.cfg}%
        {\typeout{*************************************^^J%
                       * Local config file #1.cfg used^^J%
                       *}}%
        \@empty}}
\fi
\ifx\@unexpandable@protect\@undefined
  \def\@unexpandable@protect{\noexpand\protect\noexpand}
  \long\def\protected@write#1#2#3{%
    \begingroup
      \let\thepage\relax
      #2%
      \let\protect\@unexpandable@protect
      \edef\reserved@a{\write#1{#3}}%
      \reserved@a
    \endgroup
    \if@nobreak\ifvmode\nobreak\fi\fi}
\fi
\endinput
%%
%% End of file `babel.def'.
