%%
%% This is file `latex.ltx',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% ltdirchk.dtx  (with options: `initex,2ekernel,dircheck')
%% ltplain.dtx  (with options: `2ekernel')
%% ltvers.dtx  (with options: `2ekernel')
%% ltluatex.dtx  (with options: `2ekernel')
%% ltexpl.dtx  (with options: `2ekernel')
%% ltdefns.dtx  (with options: `2ekernel')
%% ltcmd.dtx  (with options: `2ekernel')
%% lthooks.dtx  (with options: `2ekernel')
%% ltcmdhooks.dtx  (with options: `2ekernel')
%% ltsockets.dtx  (with options: `2ekernel')
%% lttemplates.dtx  (with options: `2ekernel')
%% ltalloc.dtx  (with options: `2ekernel')
%% ltcntrl.dtx  (with options: `2ekernel')
%% lterror.dtx  (with options: `2ekernel')
%% ltpar.dtx  (with options: `2ekernel')
%% ltpara.dtx  (with options: `2ekernel')
%% ltmeta.dtx  (with options: `2ekernel')
%% ltspace.dtx  (with options: `2ekernel')
%% ltlogos.dtx  (with options: `2ekernel')
%% ltfiles.dtx  (with options: `2ekernel')
%% ltoutenc.dtx  (with options: `2ekernel')
%% ltcounts.dtx  (with options: `2ekernel')
%% ltlength.dtx  (with options: `2ekernel')
%% ltfssbas.dtx  (with options: `2ekernel')
%% ltfssaxes.dtx  (with options: `2ekernel')
%% ltfsstrc.dtx  (with options: `2ekernel')
%% ltfssdcl.dtx  (with options: `compat,2ekernel')
%% ltfssini.dtx  (with options: `compat,2ekernel')
%% ltfntcmd.dtx  (with options: `2ekernel')
%% lttextcomp.dtx  (with options: `2ekernel')
%% ltpageno.dtx  (with options: `2ekernel')
%% ltxref.dtx  (with options: `2ekernel')
%% ltproperties.dtx  (with options: `2ekernel')
%% ltmiscen.dtx  (with options: `2ekernel')
%% ltmath.dtx  (with options: `2ekernel')
%% ltlists.dtx  (with options: `2ekernel')
%% ltboxes.dtx  (with options: `2ekernel')
%% lttab.dtx  (with options: `2ekernel')
%% ltpictur.dtx  (with options: `2ekernel')
%% ltthm.dtx  (with options: `2ekernel')
%% ltsect.dtx  (with options: `2ekernel')
%% ltfloat.dtx  (with options: `2ekernel')
%% ltidxglo.dtx  (with options: `2ekernel')
%% ltbibl.dtx  (with options: `2ekernel')
%% ltmarks.dtx  (with options: `trace,2ekernel')
%% ltpage.dtx  (with options: `2ekernel')
%% ltclass.dtx  (with options: `2ekernel,tracerollback')
%% ltkeys.dtx  (with options: `2ekernel')
%% ltfilehook.dtx  (with options: `2ekernel')
%% ltshipout.dtx  (with options: `2ekernel')
%% ltoutput.dtx  (with options: `2ekernel')
%% lttagging.dtx  (with options: `2ekernel')
%% ltfinal.dtx  (with options: `2ekernel')
%% 
%% This is a generated file.
%% 
%% The source is maintained by the LaTeX Project team and bug
%% reports for it can be opened at https://latex-project.org/bugs.html
%% (but please observe conditions on bug reports sent to that address!)
%% 
%% 
%% Copyright (C) 1993-2025
%% The LaTeX Project and any individual authors listed elsewhere
%% in this file.
%% 
%% This file was generated from file(s) of the LaTeX base system.
%% --------------------------------------------------------------
%% 
%% It may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%% The latest version of this license is in
%%    https://www.latex-project.org/lppl.txt
%% and version 1.3c or later is part of all distributions of LaTeX
%% version 2008 or later.
%% 
%% This file has the LPPL maintenance status "maintained".
%% 
%% This file may only be distributed together with a copy of the LaTeX
%% base system. You may however distribute the LaTeX base system without
%% such generated files.
%% 
%% The list of all files belonging to the LaTeX base distribution is
%% given in the file `manifest.txt'. See also `legal.txt' for additional
%% information.
%% 
%% 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.
%%% From File: ltdirchk.dtx
%% ---- START temporary definitions for bootstrapping; later overwritten ----
\ifnum\catcode`\{=1
  \errmessage
  {LaTeX must be made using an initex with no format preloaded}
\fi
\catcode`\{=1
\catcode`\}=2
\ifx\directlua\undefined
\else
  \ifx\luatexversion\undefined
    \directlua{tex.enableprimitives("",%
                 tex.extraprimitives('etex', 'pdftex', 'umath'))}
    \directlua{tex.enableprimitives("",%
                 tex.extraprimitives("omega", "aleph", "luatex"))}
  \fi
\fi
\ifx\eTeXversion\undefined
  \errmessage
    {LaTeX requires e-TeX}
  \expandafter\endinput
\fi
\catcode`\#=6
\catcode`\^=7
\chardef\active=13
\catcode`\@=11
\countdef\count@=255
\let\bgroup={ \let\egroup=}
\ifx\@@input\@undefined\let\@@input\input\fi
\ifx\@@end\@undefined\let\@@end\end\fi
\chardef\@inputcheck0
\chardef\sixt@@n=16
\newlinechar`\^^J
\def\typeout{\immediate\write17}
\def\dospecials{\do\ \do\\\do\{\do\}\do\$\do\&%
  \do\#\do\^\do\_\do\%\do\~}
\def\@makeother#1{\catcode`#1=12\relax}
\def\space{ }
\def\@tempswafalse{\let\if@tempswa\iffalse}
\def\@tempswatrue{\let\if@tempswa\iftrue}
\let\if@tempswa\iffalse
\def\loop#1\repeat{\def\iterate{#1\relax\expandafter\iterate\fi}%
  \iterate \let\iterate\relax}
\let\repeat\fi
\def\two@digits#1{\ifnum#1<10 0\fi\number#1}
\long\def\@firstoftwo#1#2{#1}
\long\def\@secondoftwo#1#2{#2}
\def\ProvidesFile#1{%
  \begingroup
    \catcode`\ 10 %
    \ifnum \endlinechar<256 %
      \ifnum \endlinechar>\m@ne
        \catcode\endlinechar 10 %
      \fi
    \fi
    \@makeother\/%
    \@ifnextchar[{\@providesfile{#1}}{\@providesfile{#1}[]}}
\def\@providesfile#1[#2]{%
    \wlog{File: #1 #2}%
    \@addtofilelist{ #2}%
    \endgroup}
\long\def\@addtofilelist#1{}
\def\@empty{}
\catcode`\%=12
\def\@percentchar{%}
\catcode`\%=14
\let\@currdir\@undefined
\let\input@path\@undefined
\let\filename@parse\@undefined
\def\strip@prefix#1>{}
\input texsys.cfg
\begingroup
\count@\time
\divide\count@ 60
\count2=-\count@
\multiply\count2 60
\advance\count2 \time
\edef\today{%
  \the\year/\two@digits{\the\month}/\two@digits{\the\day}:%
    \two@digits{\the\count@}:\two@digits{\the\count2}}
\immediate\openout15=texsys.aux
\immediate\write15{\today^^J}
\immediate\closeout15 %
\def\IfFileExists#1#2#3{%
  \openin\@inputcheck#1 %
  \ifeof\@inputcheck
     #3\relax
  \else
    \read\@inputcheck to \reserved@a
    \ifx\reserved@a\today
      \typeout{#1 found}#2\relax
    \else
      \typeout{BAD: old file \reserved@a (should be \today)}%
      #3\relax
    \fi
  \fi
  \closein\@inputcheck}
\endlinechar=-1
\ifx\@currdir\@undefined
  \IfFileExists{./texsys.aux}{\gdef\@currdir{./}}%
    {\IfFileExists{[]texsys.aux}{\gdef\@currdir{[]}}%
      {\IfFileExists{:texsys.aux}{\gdef\@currdir{:}}{}}}
  \ifx\@currdir\@undefined
    \global\let\@currdir\@empty
    \typeout{^^J^^J%
      !! No syntax for the current directory could be found^^J%
      }%
  \fi
\else
  \IfFileExists{\@currdir texsys.aux}{}{%
    \edef\reserved@a{\errhelp{%
      texsys.cfg specifies the current directory syntax to be^^J%
      \meaning\@currdir^^J%
      but this does not work on this system.^^J%
      Remove texsys.cfg and restart.}}\reserved@a
    \errmessage{Bad texsys.cfg file: \noexpand\@currdir}\@@end}
\fi
\immediate\closeout15 %
\endgroup
\typeout{^^J^^J%
         \noexpand\@currdir set to:
           \expandafter\strip@prefix\meaning\@currdir.^^J%
         }
  \typeout{^^J%
    Assuming \noexpand\openin and \noexpand\input^^J%
    \ifx\input@path\@undefined
      have the same search path.^^J%
    \else
      have different  search paths.^^J%
      LaTeX will use the path specified by \noexpand\input@path:^^J%
    \fi
    }
\ifx\filename@parse\@undefined
  \def\reserved@a{./}\ifx\@currdir\reserved@a
    \typeout{^^JDefining UNIX/DOS style filename parser.^^J}
    \def\filename@parse#1{%
      \let\filename@area\@empty
      \expandafter\filename@path#1/\\}
    \def\filename@path#1/#2\\{%
      \ifx\\#2\\%
         \def\reserved@a{\filename@simple#1.\\}%
      \else
         \edef\filename@area{\filename@area#1/}%
         \def\reserved@a{\filename@path#2\\}%
      \fi
      \reserved@a}
  \else\def\reserved@a{[]}\ifx\@currdir\reserved@a
    \typeout{^^JDefining VMS style filename parser.^^J}
    \def\filename@parse#1{%
      \let\filename@area\@empty
      \expandafter\filename@path#1]\\}
    \def\filename@path#1]#2\\{%
      \ifx\\#2\\%
         \def\reserved@a{\filename@simple#1.\\}%
      \else
         \edef\filename@area{\filename@area#1]}%
         \def\reserved@a{\filename@path#2\\}%
      \fi
      \reserved@a}
  \else\def\reserved@a{:}\ifx\@currdir\reserved@a
    \typeout{^^JDefining Mac style filename parser.^^J}
    \def\filename@parse#1{%
      \let\filename@area\@empty
      \expandafter\filename@path#1:\\}
    \def\filename@path#1:#2\\{%
      \ifx\\#2\\%
         \def\reserved@a{\filename@simple#1.\\}%
      \else
         \edef\filename@area{\filename@area#1:}%
         \def\reserved@a{\filename@path#2\\}%
      \fi
      \reserved@a}
  \else
    \typeout{^^JDefining generic filename parser.^^J}
    \def\filename@parse#1{%
      \let\filename@area\@empty
      \expandafter\filename@simple#1.\\}
  \fi\fi\fi
\def\filename@simple#1.#2\\{%
  \ifx\\#2\\%
    \let\filename@ext\relax
    \edef\filename@base{#1}%
  \else
    \filename@dots{#1}#2\\%
  \fi}
\def\filename@dots#1#2.#3\\{%
  \ifx\\#3\\%
    \def\filename@ext{#2}%
    \edef\filename@base{#1}%
  \else
    \filename@dots{#1.#2}#3\\%
  \fi}
  \def\filename@dot#1.\\{#1}
\else
  \typeout{^^J^^J%
    \noexpand\filename@parse was defined in texsys.cfg:^^J%
    \expandafter\strip@prefix\meaning\filename@parse.^^J%
    }
\fi
\ifx\@TeXversion\@undefined
  \ifx\@undefined\inputlineno
    \def\@TeXversion{2}
  \else
   {\catcode`\^^J=\active
     \def\reserved@a#1#2\@@{\if#1\string^3\fi}
     \edef\reserved@a{\expandafter\reserved@a\string^^J\@@}
     \ifx\reserved@a\@empty\else\gdef\@TeXversion{3}\fi}
  \fi
\fi
%% ---- END temporary definitions for bootstrapping ----
%%% From File: ltplain.dtx
\catcode`\{=1 % left brace is begin-group character
\catcode`\}=2 % right brace is end-group character
\catcode`\$=3 % dollar sign is math shift
\catcode`\&=4 % ampersand is alignment tab
\catcode`\#=6 % hash mark is macro parameter character
\catcode`\^=7 % circumflex and uparrow are for superscripts
\catcode`\_=8 % underline and downarrow are for subscripts
\catcode`\^^I=10 % ascii tab is a blank space
\chardef\active=13 \catcode`\~=\active % tilde is active
\catcode`\^^L=\active \def^^L{\par}% ascii form-feed is \par
\message{catcodes,}
\def\dospecials{\do\ \do\\\do\{\do\}\do\$\do\&%
  \do\#\do\^\do\_\do\%\do\~}
\catcode`@=11
\chardef\@ne=1
\chardef\tw@=2
\chardef\thr@@=3
\chardef\sixt@@n=16
\chardef\@cclv=255
\mathchardef\@cclvi=256
\mathchardef\@m=1000
\mathchardef\@M=10000
\mathchardef\@MM=20000
\message{registers,}
\count10=22 % allocates \count registers 23, 24, ...
\count11=9 % allocates \dimen registers 10, 11, ...
\count12=9 % allocates \skip registers 10, 11, ...
\count13=9 % allocates \muskip registers 10, 11, ...
\count14=9 % allocates \box registers 10, 11, ...
\count15=9 % allocates \toks registers 10, 11, ...
\count16=-1 % allocates input streams 0, 1, ...
\count17=-1 % allocates output streams 0, 1, ...
\count18=3 % allocates math families 4, 5, ...
\count19=0 % allocates \language codes 1, 2, ...
\count20=255 % allocates insertions 254, 253, ...
\countdef\insc@unt=20
\countdef\allocationnumber=21
\countdef\m@ne=22 \m@ne=-1
\def\wlog{\immediate\write\m@ne}
\countdef\count@=255
\dimendef\dimen@=0
\dimendef\dimen@i=1 % global only
\dimendef\dimen@ii=2
\skipdef\skip@=0
\toksdef\toks@=0
\def\newcount {\e@alloc\count \countdef {\count10}\insc@unt\float@count}
\def\newdimen {\e@alloc\dimen \dimendef {\count11}\insc@unt\float@count}
\def\newskip  {\e@alloc\skip  \skipdef  {\count12}\insc@unt\float@count}
\def\newmuskip
           {\e@alloc\muskip\muskipdef{\count13}\m@ne\e@alloc@top}
\def\newbox   {\e@alloc\box
                  {\ifnum\allocationnumber<\@cclvi
                     \expandafter\chardef
                   \else
                     \expandafter\e@alloc@chardef
                   \fi}
                                        {\count14}\insc@unt\float@count}
\def\newtoks  {\e@alloc\toks \toksdef{\count15}\m@ne\e@alloc@top}
\def\newread  {\e@alloc\read \chardef{\count16}\m@ne\sixt@@n}
\ifx\directlua\@undefined
  \def\newwrite   {\e@alloc\write \chardef{\count17}\m@ne\sixt@@n}
\else
  \def\newwrite   {\e@alloc\write
                   {\ifnum\allocationnumber=18
                     \advance\count17\@ne
                     \allocationnumber\count17 %
                    \fi
                    \global\chardef}%
                   {\count17}%
                   \m@ne
                   {128}}
\fi
\def\new@mathgroup
  {\e@alloc\mathgroup\chardef{\count18}\m@ne\e@mathgroup@top}
\let\newfam\new@mathgroup
\ifx\directlua\@undefined
  \def\newlanguage  {\e@alloc\language \chardef{\count19}\m@ne\@cclvi}
\else
  \def\newlanguage  {\e@alloc\language \chardef{\count19}\m@ne{16384}}
\fi
\ifx\directlua\@undefined
  \ifx\widowpenalties\@undefined
    \mathchardef\e@alloc@top=255
    \let\e@alloc@chardef\chardef
  \else
    \mathchardef\e@alloc@top=32767
    \let\e@alloc@chardef\mathchardef
  \fi
\else
  \chardef\e@alloc@top=65535
  \let\e@alloc@chardef\chardef
\fi
\ifx\Umathcode\@undefined
  \chardef\e@mathgroup@top=16
\else
  \chardef\e@mathgroup@top=256
\fi
\def\e@alloc#1#2#3#4#5#6{%
  \global\advance#3\@ne
  \e@ch@ck{#3}{#4}{#5}#1%
  \allocationnumber#3\relax
  \global#2#6\allocationnumber
  \wlog{\string#6=\string#1\the\allocationnumber}}%
\gdef\e@ch@ck#1#2#3#4{%
  \ifnum#1<#2\else
    \ifnum#1=#2\relax
      \global#1\@cclvi
      \ifx\count#4\global\advance#1 10 \fi
    \fi
    \ifnum#1<#3\relax
    \else
      \errmessage{No room for a new \string#4}%
    \fi
  \fi}%
\let\float@count\e@alloc@top
\ifx\numexpr\@undefined
\def\extrafloats#1{%
\count@#1\relax
\ifnum\count@>\z@
\newinsert\reserved@a
\global\expandafter\chardef
            \csname bx@\the\allocationnumber\endcsname\allocationnumber
\@cons\@freelist{\csname bx@\the\allocationnumber\endcsname}%
\advance\count@\m@ne
\expandafter\extrafloats
\expandafter\count@
\fi
}%
\else
\def\extrafloats#1{%
\ifnum#1>\z@
\count@\numexpr\float@count-1\relax
  \ifnum\count@<266 \ch@ck0\m@ne\insert\fi
  \ch@ck0\count@\count
  \ch@ck1\count@\dimen
  \ch@ck2\count@\skip
  \ch@ck4\count@\box
\global\e@alloc@chardef\float@count\count@
\global\expandafter\e@alloc@chardef
            \csname bx@\the\float@count\endcsname\float@count
\@cons\@freelist{\csname bx@\the\float@count\endcsname}%
\expandafter\extrafloats\expandafter{\the\numexpr#1-1\expandafter}%
\fi}%
\fi
\def\alloc@#1#2#3#4{\e@alloc#2#3{\count1#1}#4\float@count}
\ifx\numexpr\@undefined
\def\newinsert#1{\global\advance\insc@unt \m@ne
  \ch@ck0\insc@unt\count
  \ch@ck1\insc@unt\dimen
  \ch@ck2\insc@unt\skip
  \ch@ck4\insc@unt\box
  \allocationnumber\insc@unt
  \global\chardef#1\allocationnumber
  \wlog{\string#1=\string\insert\the\allocationnumber}}
\else
\ifx\directlua\@undefined
  \chardef\e@insert@top255
\else
  \chardef\e@insert@top\e@alloc@top
\fi
\def\newinsert#1{%
\@tempswafalse
\global\advance\insc@unt\m@ne
\ifnum\count10<\insc@unt
\ifnum\count11<\insc@unt
\ifnum\count12<\insc@unt
\ifnum\count14<\insc@unt
  \@tempswatrue
\fi\fi\fi\fi
\if@tempswa
\allocationnumber\insc@unt
\else
\global\advance\insc@unt\@ne
  \extrafloats\@ne
  \@next\@currbox\@freelist
    {\ifnum\@currbox<\e@insert@top
      \allocationnumber\@currbox
     \else
     \ch@ck0\m@ne\insert
     \fi}%
     {\ch@ck0\m@ne\insert}%
\fi
\global\chardef#1\allocationnumber
\wlog{\string#1=\string\insert\the\allocationnumber}%
}
\fi
\gdef\ch@ck#1#2#3{%
  \ifnum\count1#1<#2\else
    \errmessage{No room for a new #3}%
  \fi}
\def\newhelp#1#2{\newtoks#1#1\expandafter{\csname#2\endcsname}}
\newread\@inputcheck
\newwrite\@unused
\newdimen\maxdimen \maxdimen=16383.99999pt % the largest legal <dimen>
\newskip\hideskip \hideskip=-1000pt plus 1fill % negative but can grow
\newdimen\p@ \p@=1pt % this saves macro space and time
\newdimen\z@ \z@=0pt % can be used both for 0pt and 0
\newskip\z@skip \z@skip=0pt plus0pt minus0pt
\newbox\voidb@x % permanently void box register
\message{parameters,}
\pretolerance=100
\tolerance=200 % INITEX sets this to 10000
\hbadness=1000
\vbadness=1000
\linepenalty=10
\hyphenpenalty=50
\exhyphenpenalty=50
\binoppenalty=700
\relpenalty=500
\clubpenalty=150
\widowpenalty=150
\displaywidowpenalty=50
\brokenpenalty=100
\predisplaypenalty=10000
\doublehyphendemerits=10000
\finalhyphendemerits=5000
\adjdemerits=10000
\tracinglostchars=2
\ifx\directlua\@undefined
  % \tracingstacklevels=0 % added in 2021
\else
  \newcount\tracingstacklevels
  % Code for \tracingstacklevels defined in ltfinal.dtx
\fi
\uchyph=1
\defaulthyphenchar=`\-
\defaultskewchar=-1
\delimiterfactor=901
\showboxbreadth=-1
\showboxdepth=-1
\errorcontextlines=-1
\hfuzz=0.1pt
\vfuzz=0.1pt
\overfullrule=5pt
\maxdepth=4pt
\splitmaxdepth=\maxdimen
\boxmaxdepth=\maxdimen
\delimitershortfall=5pt
\nulldelimiterspace=1.2pt
\scriptspace=0.5pt
\parindent=20pt
\parskip=0pt plus 1pt
\abovedisplayskip=12pt plus 3pt minus 9pt
\abovedisplayshortskip=0pt plus 3pt
\belowdisplayskip=12pt plus 3pt minus 9pt
\belowdisplayshortskip=7pt plus 3pt minus 4pt
\topskip=10pt
\splittopskip=10pt
\parfillskip=0pt plus 1fil
\newskip\normalbaselineskip \normalbaselineskip=12pt
\newskip\normallineskip \normallineskip=1pt
\newdimen\normallineskiplimit \normallineskiplimit=0pt
\newcount\interfootnotelinepenalty \interfootnotelinepenalty=100
\def\magstephalf{1095 }
\def\magstep#1{\ifcase#1 \@m\or 1200\or 1440\or 1728\or
               2074\or 2488\fi\relax}
\def\frenchspacing{\sfcode`\.\@m \sfcode`\?\@m \sfcode`\!\@m
  \sfcode`\:\@m \sfcode`\;\@m \sfcode`\,\@m}
\def\nonfrenchspacing{\sfcode`\.3000\sfcode`\?3000\sfcode`\!3000%
  \sfcode`\:2000\sfcode`\;1500\sfcode`\,1250 }
\def\normalbaselines{\lineskip\normallineskip
  \baselineskip\normalbaselineskip \lineskiplimit\normallineskiplimit}
\def\^^M{\ } % control <return> = control <space>
\let\^^I\^^M % same for <tab>
\def\lq{`}
\def\rq{'}
\def\lbrack{[}
\def\rbrack{]}
\def \aa {\r a}
\def \AA {\r A}
\let\endgraf=\par
\let\endline=\cr
\def\space{ }
\let\empty\@empty
\def\null{\hbox{}}
\let\bgroup={
\let\egroup=}
\begingroup
\catcode`\^^M=\active % these lines must end with %
  \gdef\obeylines{\catcode`\^^M\active%
    \let^^M\obeyedline%
  }%
  \global\let^^M\par % this is in case ^^M appears in a \write
\endgroup
\protected\gdef\obeyedline{\par}
\global\let\obeyedspace\space
\begingroup
\catcode`\ =\active%
\gdef\obeyspaces{\catcode`\ \active\let =\obeyedspace}%
\global\let =\space%
\endgroup
\long\def \loop #1\repeat{%
  \def\iterate{#1\relax  % Extra \relax
               \expandafter\iterate\fi
               }%
  \iterate
  \let\iterate\relax
}
\let\repeat=\fi
\def\nointerlineskip{\prevdepth-\@m\p@}
\def\offinterlineskip{\baselineskip-\@m\p@
  \lineskip\z@ \lineskiplimit\maxdimen}
\def\vglue{\afterassignment\vgl@\skip@=}
\def\vgl@{\par \dimen@\prevdepth \hrule \@height\z@
  \nobreak\vskip\skip@ \prevdepth\dimen@}
\def\hglue{\afterassignment\hgl@\skip@=}
\def\hgl@{\leavevmode \count@\spacefactor \vrule \@width\z@
  \nobreak\hskip\skip@ \spacefactor\count@}
\def\slash{/\penalty\exhyphenpenalty}
\def\break{\penalty-\@M}
\def\nobreak{\penalty \@M}
\def\allowbreak{\penalty \z@}
\def\filbreak{\par\vfil\penalty-200\vfilneg}
\def\goodbreak{\par\penalty-500 }
\def\eject{\par\break}
\def\removelastskip{\ifdim\lastskip=\z@\else\vskip-\lastskip\fi}
\def\smallbreak{\par\ifdim\lastskip<\smallskipamount
  \removelastskip\penalty-50\smallskip\fi}
\def\medbreak{\par\ifdim\lastskip<\medskipamount
  \removelastskip\penalty-100\medskip\fi}
\def\bigbreak{\par\ifdim\lastskip<\bigskipamount
  \removelastskip\penalty-200\bigskip\fi}
\def\m@th{\mathsurround\z@}
\def\underbar#1{\underline{\sbox\tw@{#1}\dp\tw@\z@\box\tw@}}
\newbox\strutbox
\def\strut{\relax\ifmmode\copy\strutbox\else\unhcopy\strutbox\fi}
\def\hidewidth{\hskip\hideskip}
\def\narrower{%
  \advance\leftskip\parindent
  \advance\rightskip\parindent}
\chardef\%=`\%
\chardef\&=`\&
\chardef\#=`\#
\def\leavevmode{\unhbox\voidb@x}
\def\mathhexbox#1#2#3{\mbox{$\m@th \mathchar"#1#2#3$}}
\def\ialign{\everycr{}\tabskip\z@skip\halign} % initialized \halign
\def\oalign#1{\leavevmode\vtop{\baselineskip\z@skip \lineskip.25ex%
  \ialign{##\crcr#1\crcr}}}
\def\o@lign{\lineskiplimit\z@ \oalign}
\def\ooalign{\lineskiplimit-\maxdimen \oalign}
\def\sh@ft#1{\dimen@.00#1ex\multiply\dimen@\fontdimen1\font
  \kern-.0156\dimen@} % compensate for slant in lowered accents
\def\ltx@sh@ft #1{%
  \dimen@ #1%
  \kern \strip@pt
    \fontdimen1\font \dimen@
  } % kern by #1 times the current slant
\def\hrulefill{\leavevmode\leaders\hrule\hfill\kern\z@}
\def\dotfill{%
  \leavevmode
  \cleaders \hb@xt@ .44em{\hss.\hss}\hfill
  \kern\z@}
\sfcode`\)=0 \sfcode`\'=0 \sfcode`\]=0
\def\showoverfull{\tracingonline\@ne}
\gdef\loggingoutput{\tracingoutput\@ne
    \showboxbreadth\maxdimen\showboxdepth\maxdimen\errorstopmode}
\gdef\showoutput{\loggingoutput\showoverfull}
\edef\loggingall{%
  \tracingstats\tw@
  \tracingpages\@ne
  \tracinglostchars\thr@@
  \tracingparagraphs\@ne
  \tracinggroups\@ne
  \tracingifs\@ne
  \tracingscantokens\@ne
  \tracingnesting\@ne
  \errorcontextlines\maxdimen
  \ifdefined\tracingstacklevels \tracingstacklevels\maxdimen \fi
  \noexpand \loggingoutput
  \tracingmacros\tw@
  \tracingcommands\thr@@
  \tracingrestores\@ne
  \tracingassigns\@ne
}%
\def\tracingall{\showoverfull\loggingall}
\edef\tracingnone{%
  \tracingassigns\z@
  \tracingrestores\z@
  \tracingonline\z@
  \tracingcommands\z@
  \showboxdepth\m@ne
  \showboxbreadth\m@ne
  \tracingoutput\z@
  \errorcontextlines\m@ne
  \ifdefined\tracingstacklevels \tracingstacklevels\z@ \fi
  \tracingnesting\z@
  \tracingscantokens\z@
  \tracingifs\z@
  \tracinggroups\z@
  \tracingparagraphs\z@
  \tracingmacros\z@
  \tracinglostchars\tw@
  \tracingpages\z@
  \tracingstats\z@
}%
\def\hideoutput{%
  \tracingoutput\z@
  \showboxbreadth\m@ne
  \showboxdepth\m@ne
  \tracingonline\m@ne
}%
\nonfrenchspacing
%%% From File: ltvers.dtx
\def\fmtname{LaTeX2e}
\edef\fmtversion
   {2024-11-01}
\def\patch@level{2}
\edef\development@branch@name{}
\iffalse
\def\reserved@a#1/#2/#3\@nil{%
  \count@\year
  \advance\count@-#1\relax
  \multiply\count@ by 12\relax
  \advance\count@\month
  \advance\count@-#2\relax}
\expandafter\reserved@a\fmtversion\@nil
\ifnum\count@>65
  \typeout{^^J%
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!^^J%
!  You are attempting to make a LaTeX format from a source file^^J%
!  That is more than five years old.^^J%
!^^J%
!  If you enter <return> to scroll past this message then the format^^J%
!  will be built, but please consider obtaining newer source files^^J%
!  before continuing to build LaTeX.^^J%
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!^^J%
}
   \errhelp{To avoid this error message, obtain new LaTeX sources.}
   \errmessage{LaTeX source files more than 5 years old!}
\fi
\let\reserved@a\relax
\fi
\newtoks\LaTeXReleaseInfo
\everyjob\expandafter{\the\everyjob\the\LaTeXReleaseInfo}
\let\show@release@info\typeout
  \ifnum0\ifnum\patch@level=0 \ifx\development@branch@name\@empty 1\fi\fi>0 %
    \LaTeXReleaseInfo\expandafter{\the\LaTeXReleaseInfo
      \show@release@info{\fmtname\space <\fmtversion>}}
    \immediate
    \write16{\fmtname \space<\fmtversion>}
  \else\ifnum\patch@level>0
    \LaTeXReleaseInfo\expandafter{\the\LaTeXReleaseInfo
      \show@release@info{\fmtname\space <\fmtversion> patch level \patch@level}}
    \immediate
    \write16{\fmtname\space <\fmtversion> patch level \patch@level}
  \else
    \LaTeXReleaseInfo\expandafter{\the\LaTeXReleaseInfo
      \show@release@info{\fmtname\space <\fmtversion>
               pre-release-\number-\patch@level\space
               \ifx\development@branch@name\@undefined  \else
                 \ifx\development@branch@name\@empty  \else
                  \space (\development@branch@name\space branch)%
          \fi
        \fi
    }}
    \immediate
    \write16{\fmtname\space <\fmtversion>
             pre-release-\number-\patch@level\space
            \ifx\development@branch@name\@undefined  \else
             \ifx\development@branch@name\@empty  \else
               \space (\development@branch@name\space branch)%
          \fi
        \fi
    }
    \fi
  \fi
\let\@currname\@empty
\def\IncludeInRelease#1{%
 \if@includeinrelease
   \PackageError{latexrelease}{mis-matched IncludeInRelease}%
                {There is an \string\EndIncludeRelease\space missing}%
  \@includeinreleasefalse
  \fi
  \ifnum0%
      \ifx\new@moduledate\@empty\else 1\fi
      \ifnum \expandafter\@parse@version#1//00\@nil=0 1\fi
      =11
    \expandafter\@firstoftwo
  \else
    \expandafter\@secondoftwo
  \fi
    {\finish@module@release{#1}}%
    {\kernel@ifnextchar[%
      {\@IncludeInRelease{#1}}
      {\@IncludeInRelease{#1}[#1]}}}
\def\finish@module@release#1#2#3{%
  \toks@{[#1] #3}%
  \begingroup
    \edef\x{\detokenize\expandafter{\new@modulename}}%
    \edef\y{\detokenize{#2}}%
  \expandafter\endgroup
  \ifx\x\y \else
    \@latex@error{\noexpand\IncludeInRelease dated #1 in a module is not
      allowed.\MessageBreak Use a date at least equal to \new@moduledate
      \space for complete rollback}\@ehd
  \fi
  \ifnum\expandafter\@parse@version\new@moduledate//00\@nil
       >\expandafter\@parse@version\fmtversion//00\@nil
    \GenericInfo{}{Applying: \the\toks@}%
  \else
    \GenericInfo{}{Skipping: \the\toks@}%
    \expandafter\gobble@finish@module@release
  \fi}
\long\def\gobble@finish@module@release#1\EndModuleRelease{%
  \EndModuleRelease}
\def\@IncludeInRelease#1[#2]{\@IncludeInRele@se{#2}}
\def\@IncludeInRele@se#1#2#3{%
  \toks@{[#1] #3}%
  \expandafter\ifx\csname\string#2+\@currname+IIR\endcsname\relax
    \ifnum\expandafter\@parse@version#1//00\@nil
         >\expandafter\@parse@version\fmtversion//00\@nil
      \GenericInfo{}{Skipping: \the\toks@}%
      \expandafter\expandafter\expandafter\@gobble@IncludeInRelease
    \else
      \GenericInfo{}{Applying: \the\toks@}%
      \@includeinreleasetrue
      \expandafter\let\csname\string#2+\@currname+IIR\endcsname\@empty
    \fi
  \else
    \GenericInfo{}{Already applied: \the\toks@}%
    \expandafter\@gobble@IncludeInRelease
  \fi
}
\def\EndIncludeInRelease{%
\if@includeinrelease
  \@includeinreleasefalse
\else
  \PackageError{latexrelease}{mis-matched EndIncludeInRelease}{}%
\fi
\if@skipping@module
  \expandafter\new@module@skip
\fi}
\long\def\@gobble@IncludeInRelease#1\EndIncludeInRelease{%
  \@includeinreleasefalse
  \@check@IncludeInRelease#1\IncludeInRelease\@check@IncludeInRelease
  \@end@check@IncludeInRelease}
\long\def\@check@IncludeInRelease#1\IncludeInRelease
                                   #2#3\@end@check@IncludeInRelease{%
  \ifx\@check@IncludeInRelease#2\else
    \PackageError{latexrelease}{skipped IncludeInRelease for tag \string#2}{}%
  \fi
  \if@skipping@module
    \expandafter\new@module@skip
  \fi}
\let\if@skipping@module\iffalse
\def\@skipping@moduletrue{\let\if@skipping@module\iftrue}
\def\@skipping@modulefalse{\let\if@skipping@module\iffalse}
\let\new@modulename\@empty
\let\new@moduledate\@empty
\def\NewModuleRelease#1#2#3{%
  \ifx\new@modulename\@empty \else
    \@latex@error{Nested \noexpand\NewModuleRelease forbidden.}\@ehd \fi
  \edef\new@moduledate{#1}%
  \edef\new@modulename{#2}%
  \GenericInfo{}{BEGIN module: \new@modulename\space (\new@moduledate)}%
  \GenericInfo{}{ \@spaces\@spaces\@spaces\space#3\@gobble}%
  \ifnum\sourceLaTeXdate<%
        \expandafter\@parse@version\new@moduledate//00\@nil\relax
    \ifnum\expandafter\@parse@version\fmtversion//00\@nil<%
          \expandafter\@parse@version\new@moduledate//00\@nil\relax
      \GenericInfo{}{Skipping module \new@modulename}%
      \expandafter\expandafter
      \expandafter\gobble@finish@module@release
    \else
      \GenericInfo{}{Applying module \new@modulename}
      \@skipping@modulefalse
    \fi
  \else
    \GenericInfo{}{Skipping module \new@modulename}
    \@skipping@moduletrue
    \expandafter\new@module@skip
  \fi}
\long\def\new@module@skip#1\IncludeInRelease{%
  \long\def\reserved@a##1\EndModuleRelease{}%
  \if\relax\detokenize\expandafter{\reserved@a#1{}{}\EndModuleRelease}\relax
  \else
    \@latex@error{Missing mandatory \string\IncludeInRelease{0000/00/00}}\@ehc
    \expandafter\@secondoftwo
  \fi
  \@gobble
    {\@expandtwoargs\IncludeInRelease
         {0000/00/00}{\new@modulename}%
         {ERROR! Emergency recovery}%
     #1}%
  \IncludeInRelease}
\def\EndModuleRelease{%
  \ifx\new@modulename\@empty
    \@latex@error{Extra \string\EndModuleRelease.}\@eha
  \else
    \GenericInfo{}{END module: \new@modulename\space (\new@moduledate)}%
    \let\new@modulename\@empty
    \let\new@moduledate\@empty
    \@skipping@modulefalse
  \fi}
%%% From File: ltluatex.dtx
\ifx\directlua\@undefined\else
\ifnum\luatexversion<60 %
  \wlog{***************************************************}
  \wlog{* LuaTeX version too old for ltluatex support *}
  \wlog{***************************************************}
  \expandafter\endinput
\fi
\long\def\@gobble#1{}
\long\def\@firstofone#1{#1}
\ifx\e@alloc@attribute@count\@undefined
  \countdef\e@alloc@attribute@count=258
  \e@alloc@attribute@count=\z@
\fi
\def\newattribute#1{%
  \e@alloc\attribute\attributedef
    \e@alloc@attribute@count\m@ne\e@alloc@top#1%
}
\def\setattribute#1#2{#1=\numexpr#2\relax}
\def\unsetattribute#1{#1=-"7FFFFFFF\relax}
\ifx\e@alloc@ccodetable@count\@undefined
  \countdef\e@alloc@ccodetable@count=259
  \e@alloc@ccodetable@count=\z@
\fi
\def\newcatcodetable#1{%
  \e@alloc\catcodetable\chardef
    \e@alloc@ccodetable@count\m@ne{"8000}#1%
  \initcatcodetable\allocationnumber
}
\newcatcodetable\catcodetable@initex
\newcatcodetable\catcodetable@string
\begingroup
  \def\setrangecatcode#1#2#3{%
    \ifnum#1>#2 %
      \expandafter\@gobble
    \else
      \expandafter\@firstofone
    \fi
      {%
        \catcode#1=#3 %
        \expandafter\setrangecatcode\expandafter
          {\number\numexpr#1 + 1\relax}{#2}{#3}
      }%
  }
  \@firstofone{%
    \catcodetable\catcodetable@initex
      \catcode0=12 %
      \catcode13=12 %
      \catcode37=12 %
      \setrangecatcode{65}{90}{12}%
      \setrangecatcode{97}{122}{12}%
      \catcode92=12 %
      \catcode127=12 %
      \savecatcodetable\catcodetable@string
    \endgroup
  }%
\newcatcodetable\catcodetable@latex
\newcatcodetable\catcodetable@atletter
\begingroup
  \def\parseunicodedataI#1;#2;#3;#4\relax{%
    \parseunicodedataII#1;#3;#2 First>\relax
  }%
  \def\parseunicodedataII#1;#2;#3 First>#4\relax{%
    \ifx\relax#4\relax
      \expandafter\parseunicodedataIII
    \else
      \expandafter\parseunicodedataIV
    \fi
      {#1}#2\relax%
  }%
  \def\parseunicodedataIII#1#2#3\relax{%
    \ifnum 0%
      \if L#21\fi
      \if M#21\fi
      >0 %
      \catcode"#1=11 %
    \fi
  }%
  \def\parseunicodedataIV#1#2#3\relax{%
    \read\unicoderead to \unicodedataline
    \if L#2%
      \count0="#1 %
      \expandafter\parseunicodedataV\unicodedataline\relax
    \fi
  }%
  \def\parseunicodedataV#1;#2\relax{%
    \loop
      \unless\ifnum\count0>"#1 %
        \catcode\count0=11 %
        \advance\count0 by 1 %
    \repeat
  }%
  \def\storedpar{\par}%
  \chardef\unicoderead=\numexpr\count16 + 1\relax
  \openin\unicoderead=UnicodeData.txt %
  \loop\unless\ifeof\unicoderead %
    \read\unicoderead to \unicodedataline
    \unless\ifx\unicodedataline\storedpar
      \expandafter\parseunicodedataI\unicodedataline\relax
    \fi
  \repeat
  \closein\unicoderead
  \@firstofone{%
    \catcode64=12 %
    \savecatcodetable\catcodetable@latex
    \catcode64=11 %
    \savecatcodetable\catcodetable@atletter
   }
\endgroup
\ifx\e@alloc@luafunction@count\@undefined
  \countdef\e@alloc@luafunction@count=260
  \e@alloc@luafunction@count=\z@
\fi
\def\newluafunction{%
  \e@alloc\luafunction\e@alloc@chardef
    \e@alloc@luafunction@count\m@ne\e@alloc@top
}
\def\newluacmd{%
  \e@alloc\luafunction\luadef
    \e@alloc@luafunction@count\m@ne\e@alloc@top
}
\def\newprotectedluacmd{%
  \e@alloc\luafunction{\protected\luadef}
    \e@alloc@luafunction@count\m@ne\e@alloc@top
}
\ifx\e@alloc@whatsit@count\@undefined
  \countdef\e@alloc@whatsit@count=261
  \e@alloc@whatsit@count=\z@
\fi
\def\newwhatsit#1{%
  \e@alloc\whatsit\e@alloc@chardef
    \e@alloc@whatsit@count\m@ne\e@alloc@top#1%
}
\ifx\e@alloc@bytecode@count\@undefined
  \countdef\e@alloc@bytecode@count=262
  \e@alloc@bytecode@count=\z@
\fi
\def\newluabytecode#1{%
  \e@alloc\luabytecode\e@alloc@chardef
    \e@alloc@bytecode@count\m@ne\e@alloc@top#1%
}

\ifx\e@alloc@luachunk@count\@undefined
  \countdef\e@alloc@luachunk@count=263
  \e@alloc@luachunk@count=\z@
\fi
\def\newluachunkname#1{%
  \e@alloc\luachunk\e@alloc@chardef
    \e@alloc@luachunk@count\m@ne\e@alloc@top#1%
    {\escapechar\m@ne
    \directlua{lua.name[\the\allocationnumber]="\string#1"}}%
}
\def\now@and@everyjob#1{%
  \everyjob\expandafter{\the\everyjob
    #1%
  }%
  #1%
}
\now@and@everyjob{%
  \begingroup
    \attributedef\attributezero=0 %
    \chardef     \charzero     =0 %
    \countdef    \CountZero    =0 %
    \dimendef    \dimenzero    =0 %
    \mathchardef \mathcharzero =0 %
    \muskipdef   \muskipzero   =0 %
    \skipdef     \skipzero     =0 %
    \toksdef     \tokszero     =0 %
    \directlua{require("ltluatex")}
  \endgroup
}
\everyjob\expandafter{%
  \the\everyjob
  \directlua{%
  if xpcall(function ()%
             require('luaotfload-main')%
            end,texio.write_nl) then %
  local _void = luaotfload.main ()%
  else %
  texio.write_nl('Error in luaotfload: reverting to OT1')%
  tex.print('\string\\def\string\\encodingdefault{OT1}')%
  end %
  }%
  \let\f@encoding\encodingdefault
  \expandafter\let\csname ver@luaotfload.sty\endcsname\fmtversion
  }
\fi
%%% From File: ltexpl.dtx
\ifx\@kernel@after@enddocument\@undefined
  \let \@kernel@after@enddocument               \@empty
  \let \@kernel@after@enddocument@afterlastpage \@empty
  \let \@kernel@before@begindocument \@empty
  \let \@kernel@after@begindocument  \@empty
\fi
\def\reserved@a#1{\ifdefined#1\else\def#1{}\fi}
\reserved@a\@expl@sys@load@backend@@
\reserved@a\@expl@push@filename@@
\reserved@a\@expl@push@filename@aux@@
\reserved@a\@expl@pop@filename@@
\def\@expl@finalise@setup@@{}
\long\def\@gobble#1{}
\long\def\@firstofone#1{#1}
\long\def\@firstoftwo#1#2{#1}
\long\def\@secondoftwo#1#2{#2}
\long\def\IfFileExists#1{%
  \openin\@inputcheck"#1" %
  \ifeof\@inputcheck
    \expandafter\@secondoftwo
  \else
    \closein\@inputcheck
    \expandafter\@firstoftwo
  \fi}
\long\def\@ifnextchar#1#2#3{%
  \let\reserved@d=#1%
  \def\reserved@a{#2}%
  \def\reserved@b{#3}%
  \futurelet\@let@token\@ifnch}
\def\@ifnch{%
  \ifx\@let@token\reserved@d
    \expandafter\reserved@a
  \else
    \expandafter\reserved@b
  \fi}
\expandafter\ifx\csname tex\string _let:D\endcsname\relax
  \expandafter\@firstofone
\else
  \GenericInfo{}{Skipping: expl3 code already part of the format}%
  \expandafter\endinput
\fi
  {%
    \IfFileExists{expl3.ltx}
      {%
        \ifnum0%
          \ifdefined\pdffilesize 1\fi
          \ifdefined\filesize 1\fi
          \ifdefined\luatexversion\ifnum\luatexversion>94 1\fi\fi
          \ifdefined\kanjiskip 1\fi
            >0 %
          \expandafter\@firstofone
        \else
          \def~{ }\def\MessageBreak{^^J~~~~~~~~~~~~~~~}%
          \errmessage{LaTeX Error:
            LaTeX requires the e-TeX primitives and additional\MessageBreak
            functionality available in the engines:\MessageBreak
              - pdfTeX v1.40\MessageBreak
              - XeTeX v0.99992\MessageBreak
              - LuaTeX v0.95\MessageBreak
              - e-(u)pTeX mid-2012\MessageBreak
            or later%
          }\batchmode \read -1 to \reserved@a
        \fi
      }
      {%
        \errmessage{LaTeX requires expl3}%
        \batchmode \read -1 to \reserved@a
      }%
      {\input expl3.ltx }%
  }
\ExplSyntaxOn
\cs_gset_eq:NN \@expl@cs@to@str@@N \cs_to_str:N
\cs_gset_eq:NN \@expl@str@if@eq@@nnTF \str_if_eq:nnTF
\cs_gset_eq:NN \@expl@cs@prefix@spec@@N \cs_prefix_spec:N
\cs_if_exist:NTF \cs_parameter_spec:N
  { \cs_gset_eq:NN \@expl@cs@parameter@spec@@N \cs_parameter_spec:N }
  { \cs_gset_eq:NN \@expl@cs@parameter@spec@@N \cs_argument_spec:N }
\cs_gset_eq:NN \__kernel_cs_parameter_spec:N \@expl@cs@parameter@spec@@N
\cs_gset_eq:NN \@expl@cs@replacement@spec@@N \cs_replacement_spec:N
\cs_gset_eq:NN \@expl@str@map@function@@NN \str_map_function:NN
\cs_gset_eq:NN \@expl@char@generate@@nn \char_generate:nn
\ExplSyntaxOff
\ExplSyntaxOn
\cs_new_eq:NN \fpeval \fp_eval:n
\cs_new_eq:NN \inteval \int_eval:n
\cs_new_eq:NN \dimeval  \dim_eval:n
\cs_new_eq:NN \skipeval \skip_eval:n
\ExplSyntaxOff
\ExplSyntaxOn
\cs_new_eq:NN \UseName \use:c
\cs_new:Npn \ExpandArgs #1
  {
    \cs_if_exist_use:cF { exp_args:N #1 }
      { \msg_expandable_error:nnn { kernel } { unknown-arg-expansion } {#1} }
  }
\msg_new:nnn { kernel } { unknown-arg-expansion }
  { Unknown~arg~expansion~"#1" }
\ExplSyntaxOff
\def\IfExplAtLeastTF{\@ifl@t@r\ExplLoaderFileDate}
%%% From File: ltdefns.dtx
\def\two@digits#1{\ifnum#1<10 0\fi\number#1}
\protected\long\def\typeout#1{\begingroup
  \set@display@protect
  \def\par{^^J^^J}%
  \immediate\write\@unused{#1}\endgroup}
\newlinechar`\^^J
\let\@@par=\par
\let\@@hyph=\-
\let\@@italiccorr=\/
\def\@height{height} \def\@depth{depth} \def\@width{width}
\def\@minus{minus}
\def\@plus{plus}
\def\hb@xt@{\hbox to}
\message{hacks,}
\def\typein{%
  \let\@typein\relax
  \@testopt\@xtypein\@typein}
\ifx\directlua\@undefined
\def\@xtypein[#1]#2{%
 \typeout{#2}%
 \advance\endlinechar\@M
 \read\@inputcheck to#1%
 \advance\endlinechar-\@M
 \@typein}%
\else
\def\@xtypein[#1]#2{%
  \typeout{#2}%
  \begingroup \endlinechar\m@ne
  \read\@inputcheck to#1%
  \expandafter\endgroup
  \expandafter\def\expandafter#1\expandafter{#1}%
  \@typein}%
\fi
\def\@namedef#1{\expandafter\def\csname #1\endcsname}
\def\@nameuse#1{\csname #1\endcsname}
\def\@cons#1#2{\begingroup\let\@elt\relax\xdef#1{#1\@elt #2}\endgroup}
\def\@car#1#2\@nil{#1}
\def\@cdr#1#2\@nil{#2}
\long\def\@carcube#1#2#3#4\@nil{#1#2#3}
\def\@preamblecmds{}
\def\@onlypreamble#1{%
  \expandafter\gdef\expandafter\@preamblecmds\expandafter{%
       \@preamblecmds\do#1}}
\@onlypreamble\@onlypreamble
\@onlypreamble\@preamblecmds
\def\@star@or@long#1{%
  \@ifstar
   {\let\l@ngrel@x\relax#1}%
   {\let\l@ngrel@x\long#1}}

\let\l@ngrel@x\relax
\def\newcommand{\@star@or@long\new@command}
\def\new@command#1{%
  \@testopt{\@newcommand#1}0}
\def\@newcommand#1[#2]{%
  \kernel@ifnextchar [{\@xargdef#1[#2]}%
                {\@argdef#1[#2]}}
\long\def\@argdef#1[#2]#3{%
   \@ifdefinable #1{\@yargdef#1\@ne{#2}{#3}}}
\long\def\@xargdef#1[#2][#3]#4{%
  \@ifdefinable#1{%
     \expandafter\def\expandafter#1\expandafter{%
          \expandafter
          \@protected@testopt
          \expandafter
          #1%
          \csname\string#1\endcsname
          {#3}}%
       \expandafter\@yargdef
          \csname\string#1\endcsname
           \tw@
           {#2}%
           {#4}}}
\long\def\@testopt#1#2{%
  \kernel@ifnextchar[{#1}{#1[{#2}]}}
\def\@protected@testopt#1{%
  \ifx\protect\@typeset@protect
    \expandafter\@testopt
  \else
    \@x@protect#1%
  \fi}
\long \def \@yargdef #1#2#3{%
  \ifx#2\tw@
    \def\reserved@b##11{[####1]}%
  \else
    \let\reserved@b\@gobble
  \fi
  \expandafter
    \@yargd@f \expandafter{\number #3}#1%
}
\long \def \@yargd@f#1#2{%
  \def \reserved@a ##1#1##2##{%
    \expandafter\def\expandafter#2\reserved@b ##1#1%
    }%
  \l@ngrel@x \reserved@a 0##1##2##3##4##5##6##7##8##9###1%
}
\long\def\@reargdef#1[#2]{%
  \@yargdef#1\@ne{#2}}
\def\renewcommand{\@star@or@long\renew@command}
\def\renew@command#1{%
  \begingroup \escapechar\m@ne\xdef\@gtempa{{\string#1}}\endgroup
  \expandafter\@ifundefined\@gtempa
     {\@latex@error{Command \string#1 undefined}\@ehc}%
     \relax
  \let\@ifdefinable\@rc@ifdefinable
  \new@command#1}
\long\def\@ifdefinable #1#2{%
      \edef\reserved@a{\expandafter\@gobble\string #1}%
     \@ifundefined\reserved@a
         {\edef\reserved@b{\expandafter\@carcube \reserved@a xxx\@nil}%
          \ifx \reserved@b\@qend \@notdefinable\else
            \ifx \reserved@a\@qrelax \@notdefinable\else
              #2%
            \fi
          \fi}%
         \@notdefinable}
\let\@@ifdefinable\@ifdefinable
\long\def\@rc@ifdefinable#1#2{%
  \let\@ifdefinable\@@ifdefinable
  #2}
\def\newenvironment{\@star@or@long\new@environment}
\def\new@environment#1{%
  \@testopt{\@newenva#1}0}
\def\@newenva#1[#2]{%
   \kernel@ifnextchar [{\@newenvb#1[#2]}{\@newenv{#1}{[#2]}}}
\def\@newenvb#1[#2][#3]{\@newenv{#1}{[#2][{#3}]}}
\def\renewenvironment{\@star@or@long\renew@environment}
\def\renew@environment#1{%
  \@ifundefined{#1}%
     {\@latex@error{Environment #1 undefined}\@ehc
     }\relax
  \expandafter\let\csname#1\endcsname\relax
  \expandafter\let\csname end#1\endcsname\relax
  \new@environment{#1}}
\long\def\@newenv#1#2#3#4{%
  \@ifundefined{#1}%
    {\expandafter\let\csname#1\expandafter\endcsname
                         \csname end#1\endcsname}%
    \relax
  \expandafter\new@command
     \csname #1\endcsname#2{#3}%
     \l@ngrel@x\expandafter\def\csname end#1\endcsname{#4}}
\def\newif#1{%
  \count@\escapechar \escapechar\m@ne
    \let#1\iffalse
    \@if#1\iftrue
    \@if#1\iffalse
  \escapechar\count@}
\def\@if#1#2{%
  \expandafter\def\csname\expandafter\@gobbletwo\string#1%
                    \expandafter\@gobbletwo\string#2\endcsname
                       {\let#1#2}}
\def\providecommand{\@star@or@long\provide@command}
\def\provide@command#1{%
  \begingroup
    \escapechar\m@ne\xdef\@gtempa{{\string#1}}%
  \endgroup
  \expandafter\@ifundefined\@gtempa
    {\def\reserved@a{\new@command#1}}%
    {\def\reserved@a{\renew@command\reserved@a}}%
   \reserved@a}%
\def\CheckCommand{\@star@or@long\check@command}
\@onlypreamble\CheckCommand
\def\check@command#1#2#{\@check@c#1{#2}}
\@onlypreamble\check@command
\long\def\@check@c#1#2#3{%
  \expandafter\let\csname\string\reserved@a\endcsname\relax
  \renew@command\reserved@a#2{#3}%
  \@ifundefined{\string\reserved@a}%
   {\@check@eq#1\reserved@a}%
   {\expandafter\@check@eq
           \csname\string#1\expandafter\endcsname
           \csname\string\reserved@a\endcsname}}
\@onlypreamble\@check@c
\def\@check@eq#1#2{%
  \ifx#1#2\else
     \@latex@warning@no@line
               {Command \noexpand#1 has
                changed.\MessageBreak
                Check if current package is valid}%
  \fi}
\@onlypreamble\@check@eq
\long\def \@gobble #1{}
\long\def \@gobbletwo #1#2{}
\long\def \@gobblethree #1#2#3{}
\long\def \@gobblefour #1#2#3#4{}
\long\def\@firstofone#1{#1}
\long\def\@firstoftwo#1#2{#1}
\long\def\@secondoftwo#1#2{#2}
\let\@iden\@firstofone
\long\def\@thirdofthree#1#2#3{#3}
\def\@expandtwoargs#1#2#3{%
\protected@edef\reserved@a{\noexpand#1{#2}{#3}}\reserved@a}
\edef\@backslashchar{\expandafter\@gobble\string\\}
\def\@unexpandable@protect{\noexpand\protect\noexpand}
\def\DeclareRobustCommand{\@star@or@long\declare@robustcommand}
\def\declare@robustcommand#1{%
   \ifx#1\@undefined\else\ifx#1\relax\else
      \@latex@info{Redefining \string#1}%
   \fi\fi
   \edef\reserved@a{\string#1}%
   \def\reserved@b{#1}%
   \edef\reserved@b{\expandafter\strip@prefix\meaning\reserved@b}%
   \edef#1{%
      \ifx\reserved@a\reserved@b
         \noexpand\x@protect
         \noexpand#1%
      \fi
      \noexpand\protect
      \expandafter\noexpand\csname
         \expandafter\@gobble\string#1 \endcsname
   }%
   \let\@ifdefinable\@rc@ifdefinable
   \expandafter\new@command\csname
      \expandafter\@gobble\string#1 \endcsname
}
\def\x@protect#1{%
   \ifx\protect\@typeset@protect\else
      \@x@protect#1%
   \fi
}
\def\@x@protect#1\fi#2#3{%
   \fi\protect#1%
}
\let\@typeset@protect\relax
\def\set@display@protect{\let\protect\string}
\def\set@typeset@protect{\let\protect\@typeset@protect}
\def\protected@edef{%
   \let\@@protect\protect
   \let\protect\@unexpandable@protect
   \afterassignment\restore@protect
   \edef
}
\def\protected@xdef{%
   \let\@@protect\protect
   \let\protect\@unexpandable@protect
   \afterassignment\restore@protect
   \xdef
}
\def\unrestored@protected@xdef{%
   \let\protect\@unexpandable@protect
   \xdef
}
\def\restore@protect{\let\protect\@@protect}
\set@typeset@protect
\def\MakeRobust#1{%
  \count@=\escapechar
  \escapechar=`\\
  \@ifundefined{\expandafter\@gobble\string#1}{%
    \@latex@error{Command `\string#1' undefined.%
      \MessageBreak There is nothing here to make robust}%
    \@eha
  }%
  {%
    \@ifundefined{\expandafter\@gobble\string#1\space}%
    {%
      \expandafter\@kernel@rename@newcommand
        \csname\expandafter\@gobble\string#1\space\endcsname
        #1%
      \edef\reserved@a{\string#1}%
      \def\reserved@b{#1}%
      \edef\reserved@b{\expandafter\strip@prefix\meaning\reserved@b}%
      \xdef#1{%
        \ifx\reserved@a\reserved@b
          \noexpand\x@protect\noexpand#1%
        \fi
        \noexpand\protect\expandafter\noexpand
        \csname\expandafter\@gobble\string#1\space\endcsname}%
    }%
    {\@latex@info{Command `\string#1' is already robust}}%
  }%
  \escapechar=\count@
}%
\def\@kernel@rename@newcommand#1#2{%
  \robust@command@chk@safe#2%
    {\@if@newcommand#2%
      {\afterassignment\global
       \global\@copy@newcommand#1#2%
       \global\let#2\@undefined
       \global\expandafter\let\csname\string#2\endcsname\@undefined}%
      {\global\let#1=#2}}%
    {\global\let#1=#2}}
\def\kernel@make@fragile#1{%
  \@ifundefined{\expandafter\@gobble\string#1\space}%
     {}%
     {%
      \global\expandafter\let\expandafter #1\csname
        \expandafter\@gobble\string#1\space\endcsname
      \expandafter\@kernel@rename@newcommand
        \csname\expandafter\@gobble\string#1\expandafter\endcsname
        \csname\expandafter\@gobble\string#1\space\endcsname
      \global\expandafter\let\csname
        \expandafter\@gobble\string#1\space\endcsname\@undefined
     }%
}
\long\def\robust@command@act#1#2#3#4{%
  \robust@command@chk@safe#2%
    {\expandafter\robust@command@act@loop
       \expandafter#2%
         #1{\@nnil\@nnil}%
     \robust@command@act@end}%
    {\robust@command@act@end}%
      {#3}{#4}}%
\long\def\robust@command@act@loop#1#2{\robust@command@act@loop@aux#1#2}
\long\def\robust@command@act@loop@aux#1#2#3{%
  \ifx\@nnil#2%
  \else
    #2{#1}%
      {\robust@command@act@do{#3}}%
      {\expandafter\robust@command@act@loop\expandafter#1}%
  \fi}
\long\def\robust@command@act@do#1%
  \fi#2%
  \robust@command@act@end#3#4{%
  \fi
  #1#4}
\long\def\robust@command@act@end#1#2{#1#2}
\long\def\robust@command@chk@safe#1{%
  \begingroup
    \escapechar=`\\
  \expandafter\endgroup\expandafter
  \robust@command@act@chk@args\meaning#1:->\@nil}
\def\robust@command@act@chk@args#1:->#2\@nil{%
  \@expl@str@if@eq@@nnTF{#1}{macro}%
    {\@firstoftwo}%
    {\@expl@str@if@eq@@nnTF{#1}{\protected macro}%
      {\@firstoftwo}%
      {\@secondoftwo}}}
\def\NewCommandCopy{%
  \declare@commandcopy
    {\@firstofone}%
    {\@firstoftwo\@notdefinable}}
\def\RenewCommandCopy{%
  \declare@commandcopy
    {\@latex@error{Command \@backslashchar\reserved@a\space undefined}\@ehc
     \@firstofone}%
    {\@firstofone}}
\def\DeclareCommandCopy{%
  \declare@commandcopy
    {\@firstofone}%
    {\@firstofone}}
\long\def\declare@commandcopy#1#2#3#4{%
  \edef\reserved@a{\@expl@cs@to@str@@N#3}%
  \@ifundefined\reserved@a{#1}{#2}%
    {\declare@commandcopy@do{#3}{#4}}}
\long\def\declare@commandcopy@do#1#2{%
  \robust@command@act
    \@declarecommandcopylisthook#2%
    \declare@commandcopy@let{#1#2}}
\def\@declarecommandcopylisthook{%
  {\@if@DeclareRobustCommand \@copy@DeclareRobustCommand}%
  {\@if@newcommand \@copy@newcommand}}
\long\def\declare@commandcopy@let#1#2{\let#1=#2\relax}
\def\NewEnvironmentCopy{%
  \declare@environmentcopy
    {\@firstofone}%
    {\@firstoftwo\@notdefinable}}
\def\RenewEnvironmentCopy{%
  \declare@environmentcopy
    {\@latex@error{Environment \reserved@a\space undefined}\@ehc
     \@firstofone}%
    {\@firstofone}}
\def\DeclareEnvironmentCopy{%
  \declare@environmentcopy
    {\@firstofone}%
    {\@firstofone}}
\long\def\declare@environmentcopy#1#2#3#4{%
  \edef\reserved@a{\@ifundefined{#3}{end#3}{#3}}%
  \@ifundefined\reserved@a
      {\def\reserved@a{#3}#1}%
      {\def\reserved@a{#3}#2}%
    {\ExpandArgs{cc}\declare@commandcopy@do{#3}{#4}%
     \ExpandArgs{cc}\declare@commandcopy@do{end#3}{end#4}}}
\long\def\ShowCommand#1{%
  \robust@command@act
    \@showcommandlisthook#1%
    \show#1}
\def\@showcommandlisthook{%
  {\@if@DeclareRobustCommand \@show@DeclareRobustCommand}%
  {\@if@newcommand \@show@newcommand}}
\long\def\@if@DeclareRobustCommand#1{%
  \begingroup
    \escapechar=`\\
    \edef\reserved@a{\string#1}%
    \edef\reserved@b{\detokenize{#1}}%
    \xdef\@gtempa{%
      \ifx\reserved@a\reserved@b
         \noexpand\x@protect
         \noexpand#1%
      \fi
      \noexpand\protect
      \expandafter\noexpand\csname\@expl@cs@to@str@@N#1 \endcsname}%
  \endgroup
  \ifx\@gtempa#1\relax
    \expandafter\@firstoftwo
  \else
    \expandafter\@secondoftwo
  \fi}
\long\def\@copy@DeclareRobustCommand#1#2{%
  \begingroup
    \escapechar=`\\
    \edef\reserved@a{\string#1}%
    \edef\reserved@b{\detokenize{#1}}%
    \edef\reserved@a{%
  \endgroup
  \def\noexpand#1{%
    \ifx\reserved@a\reserved@b
       \noexpand\x@protect
       \noexpand#1%
    \fi
    \noexpand\protect
    \expandafter\noexpand\csname\@expl@cs@to@str@@N#1 \endcsname}%
  \noexpand\copy@kernel@robust@command
    \expandafter\noexpand\csname\@expl@cs@to@str@@N#1 \endcsname
    \expandafter\noexpand\csname\@expl@cs@to@str@@N#2 \endcsname}%
  \reserved@a}
\long\def\copy@kernel@robust@command#1#2{%
  \robust@command@chk@safe#2%
    {\@if@newcommand#2%
       {\@copy@newcommand}%
       {\declare@commandcopy@let}}
    {\declare@commandcopy@let}%
  #1#2}
\long\def\@show@DeclareRobustCommand#1{%
  \typeout{> \string#1=robust macro:}%
  \typeout{->\@expl@cs@replacement@spec@@N#1.^^J}%
  \expandafter\show@kernel@robust@command
    \csname\@expl@cs@to@str@@N#1 \endcsname}
\long\def\show@kernel@robust@command#1{%
  \robust@command@chk@safe#1%
    {\@if@newcommand#1%
       {\@show@newcommand}%
       {\@show@macro}}%
    {\@show@macro}%
  #1}
\let\@show@macro\show
\long\def\@if@newcommand#1{%
  \edef\reserved@a{%
    \noexpand\@protected@testopt
    \noexpand#1%
    \expandafter\noexpand\csname\@backslashchar\@expl@cs@to@str@@N#1\endcsname}%
  \edef\reserved@b{%
    \unexpanded\expandafter\expandafter\expandafter
      {\expandafter\@carcube#1{}{}{}\@nil}}%
  \ifx\reserved@a\reserved@b
    \expandafter\@firstoftwo
  \else
    \expandafter\@secondoftwo
  \fi}
\long\def\@copy@newcommand#1#2{%
  \edef#1{\noexpand\@protected@testopt
    \noexpand#1%
    \expandafter\noexpand\csname\@backslashchar\@expl@cs@to@str@@N#1\endcsname
    \unexpanded\expandafter\expandafter\expandafter
      {\expandafter\@gobblethree#2}}%
  \expandafter
  \let\csname\@backslashchar\@expl@cs@to@str@@N#1\expandafter\endcsname
      \csname\@backslashchar\@expl@cs@to@str@@N#2\endcsname}
\long\def\@show@newcommand#1{%
  \typeout{> \string#1=robust macro:}%
  \typeout{->\@expl@cs@replacement@spec@@N#1.^^J}%
  \expandafter\@show@newcommand@aux
    \csname\@backslashchar\@expl@cs@to@str@@N#1\expandafter\endcsname
    \expandafter{#1}\@show@tokens}
\long\def\@show@newcommand@aux#1#2#3{%
  \typeout{> \string#1=\@expl@cs@prefix@spec@@N#1macro:}%
  #3{default \string##1=\expandafter\detokenize\@gobblethree#2.^^J%
    \@expl@cs@parameter@spec@@N#1->\@expl@cs@replacement@spec@@N#1}}
\long\def\@show@tokens#1{%
  \edef\reserved@a{#1}%
  \showtokens\expandafter
    \expandafter\expandafter{\expandafter\reserved@a}}
\def\ShowEnvironment#1{%
  \expandafter\@show@environment\csname #1\endcsname}
\long\def\@show@environment#1{%
  \robust@command@act
    \@showenvironmentlisthook#1%
    \@show@normalenv#1}
\def\@showenvironmentlisthook{%
  {\@if@DeclareRobustCommand \@show@DeclareRobustCommand@env}%
  {\@if@newcommand \@show@newcommand@env}}
\long\def\@show@newcommand@env#1{%
  \@show@environment@begin#1%
  \expandafter\@show@newcommand@aux
    \csname\@backslashchar\@expl@cs@to@str@@N#1\expandafter\endcsname
    \expandafter{#1}\@show@typeout
  \@show@environment@end#1}
\long\def\@show@DeclareRobustCommand@env#1{%
  \@show@environment@begin#1%
  \begingroup
    \let\@show@tokens\@show@typeout
    \let\@show@macro\@show@nonstop
    \expandafter\show@kernel@robust@command
      \csname\@expl@cs@to@str@@N#1 \endcsname
  \endgroup
  \@show@environment@end#1}
\long\def\@show@environment@begin#1{%
  \typeout{> \string\begin{\@expl@cs@to@str@@N#1}=environment:}%
  \typeout{\@expl@cs@parameter@spec@@N#1->%
           \@expl@cs@replacement@spec@@N#1.^^J}}
\long\def\@show@normalenv#1{%
  \@show@environment@begin#1%
  \@show@environment@end#1}
\long\def\@show@environment@end#1{%
  \expandafter\@show@environment@end@aux
    \csname end\@expl@cs@to@str@@N#1\endcsname#1}
\long\def\@show@environment@end@aux#1#2{%
  \@show@tokens{\string\end{\@expl@cs@to@str@@N#2}%
    \ifx\relax#1=undefined%
    \else:^^J\@expl@cs@parameter@spec@@N#1->%
             \@expl@cs@replacement@spec@@N#1%
    \fi}}
\def\@show@nonstop#1{%
  \typeout{> \string#1=\@expl@cs@prefix@spec@@N#1macro:^^J%
   \@expl@cs@parameter@spec@@N#1->\@expl@cs@replacement@spec@@N#1.}}
\def\@show@typeout#1{\typeout{> #1.^^J}}
\def\@ifundefined#1{%
  \ifcsname#1\endcsname\@ifundefin@d@i\else\@ifundefin@d@ii\fi{#1}}
\long\def\@ifundefin@d@i#1\fi#2{\fi
  \expandafter\ifx\csname #2\endcsname\relax
    \@ifundefin@d@ii
  \fi
  \@secondoftwo}
\long\def\@ifundefin@d@ii\fi#1#2#3{\fi #2}
\ifx\numexpr\@undefined
\def\@ifundefined#1{%
  \expandafter\ifx\csname#1\endcsname\relax
    \expandafter\@firstoftwo
  \else
    \expandafter\@secondoftwo
  \fi}
\else\ifx\directlua\@undefined
\else
\def\@ifundefined#1{%
  \ifcsname#1\endcsname
    \expandafter\ifx\lastnamedcs\relax\else\@ifundefin@d@i\fi
  \fi
  \@firstoftwo}
\long\def\@ifundefin@d@i#1#2#3#4#5{#1#2#5}
\fi
\fi
\edef\@qend{\expandafter\@cdr\string\end\@nil}
\edef\@qrelax{\expandafter\@cdr\string\relax\@nil}
\long\def\@ifnextchar#1#2#3{%
  \let\reserved@d=#1%
  \def\reserved@a{#2}%
  \def\reserved@b{#3}%
  \futurelet\@let@token\@ifnch}
\let\kernel@ifnextchar\@ifnextchar
\def\@ifnch{%
  \ifx\@let@token\@sptoken
    \let\reserved@c\@xifnch
  \else
    \ifx\@let@token\reserved@d
      \let\reserved@c\reserved@a
    \else
      \let\reserved@c\reserved@b
    \fi
  \fi
  \reserved@c}
\def\:{\let\@sptoken= } \:  % this makes \@sptoken a space token
\def\:{\@xifnch} \expandafter\def\: {\futurelet\@let@token\@ifnch}
\def\@ifstar#1{\@ifnextchar *{\@firstoftwo{#1}}}
\long\def\@dblarg#1{\kernel@ifnextchar[{#1}{\@xdblarg{#1}}}
\long\def\@xdblarg#1#2{#1[{#2}]{#2}}
\def\@sanitize{\@makeother\ \@makeother\\\@makeother\$\@makeother\&%
\@makeother\#\@makeother\^\@makeother\_\@makeother\%\@makeother\~}
\def \@onelevel@sanitize #1{%
  \edef #1{\expandafter\strip@prefix
           \meaning #1}%
}
\def\string@makeletter#1{%
  \@expl@str@map@function@@NN#1\@string@makeletter}
\def\@string@makeletter#1{%
  \char@if@alph{#1}%
    {\@expl@char@generate@@nn{`#1}{11}}%
    {#1}}
\def\char@if@alph#1{%
  \ifnum0\ifnum`#1<`A 1\fi\ifnum`#1>`z 1\fi
      \if\ifnum`#1>`Z @\fi\ifnum`#1<`a @\fi01\fi>0
    \expandafter\@secondoftwo
  \else
    \expandafter\@firstoftwo
  \fi}
\DeclareRobustCommand\makeatletter{\catcode`\@11\relax}
\DeclareRobustCommand\makeatother{\catcode`\@12\relax}
\def\@latex@info#1{}
\ifx\directlua\@undefined
  \DeclareRobustCommand{\-}{%
    \discretionary{%
      \char \ifnum\hyphenchar\font<\z@
              \defaulthyphenchar
            \else
              \hyphenchar\font
            \fi
                 }{}{}%
  }
\else
  \let\-\@@hyph
\fi
\let\@dischyph=\-
\newif\if@includeinrelease
\@includeinreleasefalse
\MakeRobust\allowbreak
\MakeRobust\bigbreak
\MakeRobust\break
\MakeRobust\dotfill
\MakeRobust\frenchspacing
\MakeRobust\goodbreak
\MakeRobust\hrulefill
\MakeRobust\medbreak
\MakeRobust\nobreak
\MakeRobust\nonfrenchspacing
\MakeRobust\obeylines
\MakeRobust\obeyspaces
\MakeRobust\slash
\MakeRobust\smallbreak
\MakeRobust\strut
\MakeRobust\underbar
\long\def\g@addto@macro#1#2{%
  \begingroup
    \toks@\expandafter{#1#2}%
    \xdef#1{\the\toks@}%
  \endgroup}
%%% From File: ltcmd.dtx
\def\ltcmdversion{v1.2f}
\def\ltcmddate{2024-07-06}
\message{document commands,}
\ExplSyntaxOn
\tl_new:N \l__cmd_arg_spec_tl
\tl_new:N \l__cmd_args_tl
\tl_new:N \l__cmd_args_i_tl
\tl_new:N \l__cmd_args_ii_tl
\int_new:N \l__cmd_current_arg_int
\bool_new:N \l__cmd_defaults_bool
\tl_new:N \l__cmd_defaults_tl
\bool_new:N \l__cmd_environment_bool
\str_new:N \l__cmd_environment_str
\bool_new:N \l__cmd_expandable_bool
\tl_new:N \l__cmd_expandable_aux_name_tl
\tl_set:Nn \l__cmd_expandable_aux_name_tl
  {
    \l__cmd_function_tl \c_space_tl
    ( arg~ \int_use:N \l__cmd_current_arg_int )
  }
\int_new:N \g__cmd_grabber_int
\tl_new:N \l__cmd_fn_tl
\tl_new:N \l__cmd_fn_code_tl
\tl_new:N \l__cmd_function_tl
\bool_new:N \l__cmd_grab_expandably_bool
\bool_new:N \l__cmd_obey_spaces_bool
\tl_new:N \l__cmd_last_delimiters_tl
\bool_new:N \l__cmd_long_bool
\bool_new:N \l__cmd_suppress_strip_bool
\int_new:N \l__cmd_m_args_int
\bool_new:N \l__cmd_prefixed_bool
\tl_new:N \l__cmd_process_all_tl
\tl_new:N \l__cmd_process_one_tl
\bool_new:N \l__cmd_process_some_bool
\tl_new:N \l__cmd_saved_args_tl
\tl_new:N \l__cmd_signature_tl
\bool_new:N \l__cmd_some_obey_spaces_bool
\bool_new:N \l__cmd_some_long_bool
\bool_new:N \l__cmd_some_short_bool
\quark_new:N \q__cmd_recursion_tail
\quark_new:N \q__cmd_recursion_stop
\__kernel_quark_new_test:N \__cmd_if_recursion_tail_stop_do:Nn
\prop_new:N \l__cmd_tmp_prop
\tl_new:N \l__cmd_tmpa_tl
\tl_new:N \l__cmd_tmpb_tl
\cs_new_eq:NN \__cmd_tmp:w ?
\msg_redirect_module:nnn { cmd } { info } { none }
\prop_gput:Nnn \g_msg_module_type_prop { cmd } { LaTeX }
\cs_new_protected:Npn \__cmd_declare_cmd:Nnn
  {
    \bool_set_false:N \l__cmd_expandable_bool
    \__cmd_declare_cmd_aux:Nnn
  }
\cs_new_protected:Npn \__cmd_declare_expandable_cmd:Nnn
  {
    \bool_set_true:N \l__cmd_expandable_bool
    \__cmd_declare_cmd_aux:Nnn
  }
\cs_new_protected:Npn \__cmd_declare_cmd_aux:Nnn #1#2#3
  {
    \cs_if_exist:NTF #1
      {
        \msg_info:nnxx { cmd } { redefine }
          { \token_to_str:N #1 } { \tl_to_str:n {#2} }
      }
      {
        \bool_lazy_or:nnT
          { \cs_if_exist_p:c { \cs_to_str:N #1 ~ code } }
          { \cs_if_exist_p:c { \cs_to_str:N #1 ~ defaults } }
          {
            \msg_warning:nnx { cmd } { unsupported-let }
              { \token_to_str:N #1 }
          }
        \msg_info:nnxx { cmd } { define-command }
          { \token_to_str:N #1 } { \tl_to_str:n {#2} }
      }
    \bool_set_false:N \l__cmd_environment_bool
    \__cmd_declare_cmd_internal:Nnnn #1 {#2} {#3} { }
  }
\cs_new_protected:Npn \__cmd_declare_cmd_internal:Nnnn #1#2#3#4
  {
    \tl_set:Nx \l__cmd_function_tl { \cs_to_str:N #1 }
    \__cmd_normalize_arg_spec:n {#2}
    \exp_args:No \__cmd_prepare_signature:n \l__cmd_arg_spec_tl
    \__cmd_declare_cmd_code:Nnn #1 {#2} {#3}
    #4
    \__cmd_break_point:n {#2}
  }
\cs_new_eq:NN \__cmd_break_point:n \use_none:n
\cs_new:Npn \__cmd_all_m_check:n #1
  { \tl_map_function:nN {#1} \__cmd_all_m_check_aux:n }
\cs_new:Npn \__cmd_all_m_check_aux:n #1
  {
    \str_if_eq:nnF {#1} { m }
      {
        \str_if_eq:nnF {#1} { + }
          { X }
      }
  }
\cs_new_protected:Npn \__cmd_declare_cmd_code:Nnn #1#2
  {
    \bool_lazy_any:nTF
      {
        { \l__cmd_environment_bool }
        {
          \bool_lazy_and_p:nn
            { \l__cmd_some_short_bool }
            { \l__cmd_some_long_bool }
        }
        { ! \tl_if_blank_p:e { \__cmd_all_m_check:n {#2} } }
      }
      {
        \tl_set:Nx \l__cmd_fn_tl
          { \exp_not:c { \l__cmd_function_tl \c_space_tl } }
        \bool_if:NTF \l__cmd_grab_expandably_bool
          { \__cmd_declare_cmd_code_expandable:Nnn }
          { \__cmd_declare_cmd_code_aux:Nnn }
      }
      { \__cmd_declare_cmd_optimized:Nnn }
        #1 {#2}
   }
\cs_new_protected:Npn \__cmd_declare_cmd_optimized:Nnn #1#2#3
  {
    \bool_if:NTF \l__cmd_expandable_bool
      { \cs_set_nopar:Npe }
      { \cs_set_protected_nopar:Npe }
        #1
        {
          \exp_not:N \__cmd_start_optimized:
          \exp_not:c { \l__cmd_function_tl \c_space_tl code }
        }
    \exp_args:Ncc \cs_generate_from_arg_count:NNnn
      { \l__cmd_function_tl \c_space_tl code }
      {
        cs_set
        \bool_if:NF \l__cmd_expandable_bool { _protected }
        \bool_if:NF \l__cmd_some_long_bool { _nopar }
        :Npn
      }
      \l__cmd_current_arg_int
      {#3}
  }
\cs_new:Npn \__cmd_start_optimized: { }
\cs_new_protected:Npn \__cmd_declare_cmd_code_aux:Nnn #1#2#3
  {
    \cs_generate_from_arg_count:cNnn
      { \l__cmd_function_tl \c_space_tl code }
      \cs_set_protected:Npn \l__cmd_current_arg_int {#3}
    \cs_set_protected_nopar:Npx #1
      {
        \bool_if:NTF \l__cmd_environment_bool
          {
            \__cmd_start_env:nnnnn { \exp_not:n {#2} }
              { \l__cmd_environment_str }
          }
          {
            \__cmd_start:nNNnnn { \exp_not:n {#2} }
              \exp_not:c { \l__cmd_function_tl \c_space_tl }
              \exp_not:c { \l__cmd_function_tl \c_space_tl code }
          }
          { \exp_not:o \l__cmd_signature_tl }
          {
            \bool_if:NT \l__cmd_defaults_bool
              { \exp_not:o \l__cmd_defaults_tl }
          }
          {
            \bool_if:NT \l__cmd_process_some_bool
              { \exp_not:o \l__cmd_process_all_tl }
          }
      }
  }
\cs_new_protected:Npn \__cmd_declare_cmd_code_expandable:Nnn #1#2#3
  {
    \exp_args:Ncc \cs_generate_from_arg_count:NNnn
      { \l__cmd_function_tl \c_space_tl code }
      { cs_set \bool_if:NF \l__cmd_expandable_bool { _protected } :Npn }
      \l__cmd_current_arg_int {#3}
    \bool_if:NT \l__cmd_defaults_bool
      {
        \use:x
          {
            \cs_generate_from_arg_count:cNnn
              { \l__cmd_function_tl \c_space_tl defaults }
              \cs_set:Npn \l__cmd_current_arg_int
              { \exp_not:o \l__cmd_defaults_tl }
          }
      }
    \bool_if:NTF \l__cmd_expandable_bool
      { \cs_set_nopar:Npx } { \cs_set_protected_nopar:Npx } #1
      {
        \exp_not:N \__cmd_start_expandable:nNNNNn
          { \exp_not:n {#2} }
          \exp_not:c { \l__cmd_function_tl \c_space_tl }
          \exp_not:c
            {
              \l__cmd_function_tl \c_space_tl
              \bool_if:NT \l__cmd_some_short_bool
                { \bool_if:NT \l__cmd_some_long_bool { \c_space_tl } }
            }
          \exp_not:c { \l__cmd_function_tl \c_space_tl code }
          \bool_if:NTF \l__cmd_defaults_bool
            { \exp_not:c { \l__cmd_function_tl \c_space_tl defaults } }
            { ? }
          { \exp_not:o \l__cmd_signature_tl }
      }
    \bool_if:NTF \l__cmd_some_long_bool
      {
        \bool_if:NT \l__cmd_some_short_bool
          {
            \cs_set_nopar:cpx { \l__cmd_function_tl \c_space_tl \c_space_tl }
              ##1##2 { ##1 {##2} }
          }
        \cs_set:cpx
      }
      { \cs_set_nopar:cpx }
          { \l__cmd_function_tl \c_space_tl } ##1##2 { ##1 {##2} }
  }
\cs_new_protected:Npn \__cmd_declare_env:nnnn #1#2
  {
    \str_set:Nn \l__cmd_environment_str {#1}
    \cs_if_exist:cTF { #1 }
      { \msg_info:nnnn { cmd } { redefine-env } { #1 } { #2 } }
      { \msg_info:nnnn { cmd } { define-env } { #1 } { #2 } }
    \bool_set_false:N \l__cmd_expandable_bool
    \bool_set_true:N \l__cmd_environment_bool
    \__cmd_declare_env_internal:nnnn {#1} {#2}
  }
\cs_generate_variant:Nn \__cmd_declare_env:nnnn { e }
\cs_new_protected:Npn \__cmd_declare_env_internal:nnnn #1#2#3#4
  {
    \exp_args:Nc \__cmd_declare_cmd_internal:Nnnn { environment~ #1 } {#2}
      {#3}
      {
        \cs_set_nopar:cpx { environment~ #1 ~end }
          { \exp_not:c { environment~ #1 ~end~aux } }
        \cs_generate_from_arg_count:cNnn
          { environment~ #1 ~end~aux~ } \cs_set:Npn
          \l__cmd_current_arg_int {#4}
        \cs_set_eq:cc {#1}       { environment~ #1 }
        \cs_set_eq:cc { end #1 } { environment~ #1 ~end }
      }
  }
\cs_new_protected:Npn \__cmd_set_environment_end:n #1
  {
    \cs_set_nopar:cpx { environment~ #1 ~end~aux }
      {
        \exp_not:c { environment~ #1 ~end~aux~ }
        \exp_not:o \l__cmd_args_tl
      }
  }
\cs_new_protected:Npn \__cmd_start_env:nnnnn #1#2
  {
    \conditionally@traceoff
    \group_align_safe_begin:
    \str_set:Nn \l__cmd_environment_str {#2}
    \bool_set_true:N \l__cmd_environment_bool
    \__cmd_start_aux:ccnnnn
      { environment~ \l__cmd_environment_str \c_space_tl }
      { environment~ \l__cmd_environment_str \c_space_tl code }
      {#1}
  }
\cs_new_protected:Npx \__cmd_start:nNNnnn #1#2#3
  {
    \exp_not:c { xparse~function~is~not~expandable }
    \exp_not:N \conditionally@traceoff
    \exp_not:N \group_align_safe_begin:
    \exp_not:n { \bool_set_false:N \l__cmd_environment_bool }
    \exp_not:N \__cmd_start_aux:NNnnnn
    #2 #3 {#1}
  }
\cs_new_protected:Npn \__cmd_start_aux:NNnnnn #1#2#3#4#5#6
  {
    \tl_clear:N \l__cmd_args_tl
    \tl_set:Nn \l__cmd_fn_tl {#1}
    \tl_set:Nn \l__cmd_fn_code_tl {#2}
    \tl_set:Nn \l__cmd_defaults_tl {#5}
    \tl_set:Nn \l__cmd_process_all_tl {#6}
    #4
    \__cmd_run_code:
  }
\cs_generate_variant:Nn \__cmd_start_aux:NNnnnn { cc }
\cs_new_protected:Npn \__cmd_run_code:
  {
    \tl_if_empty:NF \l__cmd_defaults_tl { \__cmd_defaults: }
    \tl_if_empty:NF \l__cmd_process_all_tl { \__cmd_args_process: }
    \bool_if:NT \l__cmd_environment_bool
      { \exp_args:No \__cmd_set_environment_end:n \l__cmd_environment_str }
    \group_align_safe_end:
    \conditionally@traceon
    \exp_after:wN \l__cmd_fn_code_tl \l__cmd_args_tl
  }
\cs_new_protected:Npn \__cmd_defaults:
  {
    \__cmd_defaults_def:
    \tl_set_eq:NN \l__cmd_args_i_tl \l__cmd_args_tl
    \__cmd_defaults_aux: \__cmd_defaults_aux: \__cmd_defaults_aux:
    \__cmd_defaults_aux: \__cmd_defaults_aux: \__cmd_defaults_aux:
    \__cmd_defaults_aux: \__cmd_defaults_aux: \__cmd_defaults_aux:
    \__cmd_defaults_error:w
    \q_recursion_stop
    \tl_set_eq:NN \l__cmd_args_tl \l__cmd_args_i_tl
  }
\cs_new_protected:Npn \__cmd_defaults_aux:
  {
    \tl_set:Nx \l__cmd_args_ii_tl
      { \exp_after:wN \__cmd_tmp:w \l__cmd_args_i_tl }
    \tl_if_eq:NNT \l__cmd_args_ii_tl \l__cmd_args_i_tl
      { \use_none_delimit_by_q_recursion_stop:w }
    \tl_set_eq:NN \l__cmd_args_i_tl \l__cmd_args_ii_tl
  }
\cs_new_protected:Npn \__cmd_defaults_error:w \q_recursion_stop
  {
    \msg_error:nnx { cmd } { default-loop }
      { \__cmd_environment_or_command: }
  }
\cs_new_protected:Npn \__cmd_defaults_def:
  {
    \tl_clear:N \l__cmd_tmpa_tl
    \int_zero:N \l__cmd_current_arg_int
    \__cmd_tl_mapthread_function:NNN \l__cmd_args_tl \l__cmd_defaults_tl
      \__cmd_defaults_def:nn
    \cs_generate_from_arg_count:NNno \__cmd_tmp:w \cs_set:Npn
      \l__cmd_current_arg_int \l__cmd_tmpa_tl
  }
\cs_generate_variant:Nn \cs_generate_from_arg_count:NNnn { NNno }
\cs_new_protected:Npn \__cmd_defaults_def:nn
  {
    \int_incr:N \l__cmd_current_arg_int
    \exp_args:NV \__cmd_defaults_def:nnn \l__cmd_current_arg_int
  }
\cs_new_protected:Npn \__cmd_defaults_def:nnn #1#2#3
  {
    \tl_put_right:Nx \l__cmd_tmpa_tl
      {
        {
          \exp_not:N \exp_not:n
            {
              \tl_if_novalue:nTF {#2}
                { \exp_not:o {#3} }
                { \exp_not:n { ## #1 } }
            }
        }
      }
  }
\cs_new_protected:Npn \__cmd_args_process:
  {
    \tl_clear:N \l__cmd_args_ii_tl
    \__cmd_tl_mapthread_function:NNN
      \l__cmd_args_tl
      \l__cmd_process_all_tl
      \__cmd_args_process_loop:nn
    \tl_set_eq:NN \l__cmd_args_tl \l__cmd_args_ii_tl
  }
\cs_new_protected:Npn \__cmd_args_process_loop:nn #1#2
  {
    \tl_set:Nn \ProcessedArgument {#1}
    \tl_if_novalue:nF {#1}
      { \tl_map_function:nN {#2} \__cmd_args_process_aux:n }
    \tl_put_right:No \l__cmd_args_ii_tl
      { \exp_after:wN { \ProcessedArgument } }
  }
\cs_new_protected:Npn \__cmd_args_process_aux:n #1
  {
    \cs_generate_from_arg_count:NNnn \__cmd_tmp:w \cs_set:Npn
      { \tl_count:N \l__cmd_args_tl } {#1}
    \exp_args:NNNo \exp_after:wN \__cmd_tmp:w \l__cmd_args_tl
      { \ProcessedArgument }
  }
\cs_new:Npn \__cmd_start_expandable:nNNNNn #1#2#3#4#5#6
  {
    \group_align_safe_begin:
    #6 \__cmd_end_expandable:NNw #5 #4 \q__cmd #2#3
  }
\cs_new:Npn \__cmd_end_expandable:NNw #1#2
  { \__cmd_end_expandable_aux:w #1#2 \prg_do_nothing: }
\cs_new:Npn \__cmd_end_expandable_aux:w #1#2#3 \q__cmd
  { \exp_args:No \__cmd_end_expandable_aux:nNNNN {#3} #1 #2 }
\cs_new:Npn \__cmd_end_expandable_aux:nNNNN #1#2#3#4#5
  {
    \token_if_eq_charcode:NNT ? #2 { \exp_after:wN \use_iv:nnnn }
    \__cmd_end_expandable_defaults:nnnNNn {#1} { } {#1} #2#3
      { } { } { } { } { } { } { } { } { } { }
      {
        \msg_expandable_error:nnf { cmd } { default-loop }
          { \exp_args:Nf \tl_trim_spaces:n { \token_to_str:N #4 } }
        \use_iv:nnnn
      }
    \q_stop
  }
\cs_new:Npn \__cmd_end_expandable_defaults:nnnNNn #1#2#3#4#5#6
  {
    #6
    \str_if_eq:nnTF {#1} {#2}
      { \use_i_delimit_by_q_stop:nw { \group_align_safe_end: #5 #1 } }
      {
        \exp_args:No \__cmd_tl_mapthread_function:nnN
          { #4 #1 } {#3}
          \__cmd_end_expandable_defaults:nnw
        \__cmd_end_expandable_defaults:nnnNNn { } {#1} {#3} #4 #5
      }
  }
\cs_new:Npn \__cmd_end_expandable_defaults:nnw #1#2
  {
    \tl_if_novalue:nTF {#2}
      { \exp_args:No \__cmd_end_expandable_defaults:nw {#1} }
      { \__cmd_end_expandable_defaults:nw {#2} }
  }
\cs_new:Npn \__cmd_end_expandable_defaults:nw
    #1#2 \__cmd_end_expandable_defaults:nnnNNn #3
  { #2 \__cmd_end_expandable_defaults:nnnNNn { #3 {#1} } }
\cs_new_protected:Npn \__cmd_normalize_arg_spec:n #1
  {
    \int_zero:N \l__cmd_current_arg_int
    \tl_clear:N \l__cmd_last_delimiters_tl
    \tl_clear:N \l__cmd_arg_spec_tl
    \bool_set_true:N \l__cmd_grab_expandably_bool
    \bool_set_false:N \l__cmd_obey_spaces_bool
    \bool_set_false:N \l__cmd_long_bool
    \bool_set_false:N \l__cmd_suppress_strip_bool
    \bool_set_false:N \l__cmd_some_obey_spaces_bool
    \bool_set_false:N \l__cmd_some_long_bool
    \bool_set_false:N \l__cmd_some_short_bool
    \__cmd_normalize_arg_spec_loop:n #1
      \q_recursion_tail \q_recursion_tail \q_recursion_tail \q_recursion_stop
    \int_compare:nNnT \l__cmd_current_arg_int > 9
      {
        \msg_error:nnxx { cmd } { too-many-args }
          { \__cmd_environment_or_command: } { \tl_to_str:n {#1} }
        \__cmd_bad_def:wn
      }
    \bool_if:NT \l__cmd_expandable_bool
      {
        \tl_if_empty:NF \l__cmd_last_delimiters_tl
          {
            \msg_error:nnxx { cmd } { expandable-ending-optional }
              { \iow_char:N \\ \l__cmd_function_tl } { \tl_to_str:n {#1} }
            \__cmd_bad_def:wn
          }
      }
    \bool_if:NT \l__cmd_expandable_bool
      { \bool_set_true:N \l__cmd_grab_expandably_bool }
    \bool_if:NT \l__cmd_environment_bool
      { \bool_set_false:N \l__cmd_grab_expandably_bool }
  }
\cs_new_protected:Npn \__cmd_normalize_arg_spec_loop:n #1
  {
    \quark_if_recursion_tail_stop:n {#1}
    \int_incr:N \l__cmd_current_arg_int
    \cs_if_exist_use:cF { __cmd_normalize_type_ \tl_to_str:n {#1} :w }
      {
        \bool_lazy_any:nTF
          {
            { \str_if_eq_p:nn {#1} { G } }
            { \str_if_eq_p:nn {#1} { g } }
            { \str_if_eq_p:nn {#1} { l } }
            { \str_if_eq_p:nn {#1} { u } }
          }
          {
            \msg_error:nnxx { cmd } { xparse-arg-type }
              { \__cmd_environment_or_command: } { \tl_to_str:n {#1} }
          }
          {
            \msg_error:nnxx { cmd } { unknown-argument-type }
              { \__cmd_environment_or_command: } { \tl_to_str:n {#1} }
          }
        \__cmd_bad_def:wn
      }
  }
\cs_set_protected:Npn \__cmd_tmp:w #1
  {
    \cs_new_protected:Npn \__cmd_normalize_type_d:w ##1##2
      {
        \quark_if_recursion_tail_stop_do:nn {##2} { \__cmd_bad_arg_spec:wn }
        \__cmd_normalize_type_D:w {##1} {##2} {#1}
      }
    \cs_new_protected:Npn \__cmd_normalize_type_e:w ##1
      {
        \quark_if_recursion_tail_stop_do:nn {##1} { \__cmd_bad_arg_spec:wn }
        \__cmd_normalize_type_E:w {##1} { }
      }
    \cs_new_protected:Npn \__cmd_normalize_type_o:w
      { \__cmd_normalize_type_D:w [ ] {#1} }
    \cs_new_protected:Npn \__cmd_normalize_type_O:w
      { \__cmd_normalize_type_D:w [ ] }
    \cs_new_protected:Npn \__cmd_normalize_type_r:w ##1##2
      {
        \quark_if_recursion_tail_stop_do:nn {##2} { \__cmd_bad_arg_spec:wn }
        \__cmd_normalize_type_R:w {##1} {##2} {#1}
      }
    \cs_new_protected:Npn \__cmd_normalize_type_s:w
      { \__cmd_normalize_type_t:w * }
  }
\exp_args:No \__cmd_tmp:w { \c_novalue_tl }
\cs_new_protected:cpn { __cmd_normalize_type_>:w } #1#2
  {
    \quark_if_recursion_tail_stop_do:nn {#2} { \__cmd_bad_arg_spec:wn }
    \bool_if:NT \l__cmd_expandable_bool
      {
        \msg_error:nnxx { cmd } { processor-in-expandable }
          { \iow_char:N \\ \l__cmd_function_tl } { \tl_to_str:n {#1} }
        \__cmd_bad_def:wn
      }
    \tl_put_right:Nx \l__cmd_arg_spec_tl { > { \tl_trim_spaces:n {#1} } }
    \int_decr:N \l__cmd_current_arg_int
    \bool_set_false:N \l__cmd_grab_expandably_bool
    \__cmd_normalize_arg_spec_loop:n {#2}
  }
\cs_new_protected:cpn { __cmd_normalize_type_+:w } #1
  {
    \__cmd_normalize_type_aux:NnNn + {#1}
      \l__cmd_long_bool
      { \bool_set_true:N \l__cmd_long_bool }
  }
\cs_new_protected:cpn { __cmd_normalize_type_!:w } #1
  {
    \__cmd_normalize_type_aux:NnNn ! {#1}
      \l__cmd_obey_spaces_bool
      {
        \bool_set_true:N \l__cmd_obey_spaces_bool
        \bool_set_true:N \l__cmd_some_obey_spaces_bool
      }
  }
\cs_new_protected:cpn { __cmd_normalize_type_=:w } #1#2
  {
    \__cmd_normalize_type_aux:NnNn = {#2}
      \l__cmd_suppress_strip_bool
      {
        \bool_if:NT \l__cmd_expandable_bool
          {
            \msg_error:nnxx { cmd } { keyval-in-expandable }
              { \iow_char:N \\ \l__cmd_function_tl } { \tl_to_str:n {#1} }
            \__cmd_bad_def:wn
          }
        \bool_set_true:N \l__cmd_suppress_strip_bool
        \bool_set_false:N \l__cmd_grab_expandably_bool
        \tl_put_right:Nx \l__cmd_arg_spec_tl
          { = { \tl_trim_spaces:n {#1} } }
      }
  }
\cs_new_protected:Npn \__cmd_normalize_type_aux:NnNn #1#2#3#4
  {
    \quark_if_recursion_tail_stop_do:nn {#2} { \__cmd_bad_arg_spec:wn }
    \bool_if:NT #3
      {
        \msg_error:nnxx { cmd } { two-markers }
          { \__cmd_environment_or_command: } { #1 }
        \__cmd_bad_def:wn
      }
    #4
    \int_decr:N \l__cmd_current_arg_int
    \__cmd_normalize_arg_spec_loop:n {#2}
  }
\cs_new_protected:Npn \__cmd_normalize_type_D:w #1#2#3
  {
    \quark_if_recursion_tail_stop_do:nn {#3} { \__cmd_bad_arg_spec:wn }
    \__cmd_single_token_check:n {#1} \__cmd_allowed_token_check:N #1
    \__cmd_single_token_check:n {#2}
    \__cmd_add_arg_spec:n { D #1 #2 {#3} }
    \tl_put_right:Nn \l__cmd_last_delimiters_tl {#1}
    \bool_set_false:N \l__cmd_grab_expandably_bool
    \__cmd_normalize_arg_spec_loop:n
  }
\cs_new_protected:Npn \__cmd_normalize_type_E:w #1#2
  {
    \quark_if_recursion_tail_stop_do:nn {#2} { \__cmd_bad_arg_spec:wn }
    \tl_if_blank:nT {#1} { \__cmd_bad_arg_spec:wn }
    \tl_map_function:nN {#1} \__cmd_single_token_check:n
    \tl_map_function:nN {#1} \__cmd_allowed_token_check:N
    \__cmd_normalize_E_unique_check:w #1 \q_nil \q_stop
    \int_compare:nNnT { \tl_count:n {#2} } > { \tl_count:n {#1} }
      { \__cmd_bad_arg_spec:wn }
    \__cmd_add_arg_spec:n { E {#1} {#2} }
    \tl_put_right:Nn \l__cmd_last_delimiters_tl {#1}
    \bool_set_false:N \l__cmd_grab_expandably_bool
    \int_add:Nn \l__cmd_current_arg_int { \tl_count:n {#1} - 1 }
    \__cmd_normalize_arg_spec_loop:n
  }
\cs_new_protected:Npn \__cmd_normalize_E_unique_check:w #1#2 \q_stop
  {
    \quark_if_nil:NF #1
      {
        \tl_if_in:nnT {#2} {#1} { \__cmd_bad_arg_spec:wn }
        \__cmd_normalize_E_unique_check:w #2 \q_stop
      }
  }
\cs_new_protected:Npn \__cmd_normalize_type_t:w #1
  {
    \quark_if_recursion_tail_stop_do:Nn #1 { \__cmd_bad_arg_spec:wn }
    \__cmd_single_token_check:n {#1} \__cmd_allowed_token_check:N #1
    \tl_put_right:Nx \l__cmd_arg_spec_tl
      {
        \bool_if:NT \l__cmd_obey_spaces_bool { ! }
        t \exp_not:n {#1}
      }
    \tl_put_right:Nn \l__cmd_last_delimiters_tl {#1}
    \bool_set_false:N \l__cmd_grab_expandably_bool
    \bool_set_false:N \l__cmd_obey_spaces_bool
    \bool_set_false:N \l__cmd_long_bool
    \__cmd_normalize_arg_spec_loop:n
  }
\cs_new_protected:Npn \__cmd_normalize_type_m:w
  {
    \__cmd_delimiter_check:nnn { } { m } { \iow_char:N \{ }
    \__cmd_add_arg_spec_mandatory:n { m }
    \__cmd_normalize_arg_spec_loop:n
  }
\cs_new_protected:Npn \__cmd_normalize_type_R:w #1#2#3
  {
    \quark_if_recursion_tail_stop_do:nn {#3} { \__cmd_bad_arg_spec:wn }
    \__cmd_single_token_check:n {#1} \__cmd_allowed_token_check:N #1
    \__cmd_single_token_check:n {#2}
    \__cmd_delimiter_check:nnn {#1} { R/r } { \tl_to_str:n {#1} }
    \bool_set_false:N \l__cmd_grab_expandably_bool
    \__cmd_add_arg_spec_mandatory:n { R #1 #2 {#3} }
    \__cmd_normalize_arg_spec_loop:n
  }
\cs_new_protected:Npn \__cmd_normalize_type_v:w
  {
    \__cmd_normalize_check_gv:N v
    \__cmd_add_arg_spec_mandatory:n { v }
    \__cmd_normalize_arg_spec_loop:n
  }
\cs_new_protected:Npn \__cmd_normalize_type_b:w #1
  {
    \bool_if:NF \l__cmd_environment_bool
      {
        \msg_error:nnxx { cmd } { invalid-command-arg }
          { \__cmd_environment_or_command: } { b }
        \__cmd_bad_def:wn
      }
    \tl_clear:N \l__cmd_last_delimiters_tl
    \__cmd_add_arg_spec:n { b }
    \quark_if_recursion_tail_stop:n {#1}
    \msg_error:nnxx { cmd } { arg-after-body }
      { \__cmd_environment_or_command: }
      { \tl_to_str:n {#1} }
    \__cmd_bad_def:wn
  }
\cs_new_protected:Npn \__cmd_single_token_check:n #1
  {
    \tl_trim_spaces_apply:nN {#1} \tl_if_single_token:nF
      {
        \msg_error:nnxx { cmd } { not-single-token }
          { \__cmd_environment_or_command: } { \tl_to_str:n {#1} }
        \__cmd_bad_def:wn
      }
  }
\cs_new_protected:Npn \__cmd_allowed_token_check:N #1
  {
    \token_if_eq_meaning:NNTF #1 \c_group_begin_token
        { \use:n }
        {
          \token_if_eq_meaning:NNTF #1 \c_group_end_token
            { \use:n }
            { \use_none:n }
        }
      {
        \msg_error:nnxxx { cmd } { forbidden-group-token }
          { \__cmd_environment_or_command: } { \tl_to_str:n {#1} }
          {
            \token_if_eq_meaning:NNTF #1 \c_group_begin_token
              { begin } { end }
          }
        \__cmd_bad_def:wn
      }
  }
\cs_new_protected:Npn \__cmd_normalize_check_gv:N #1
  {
    \bool_if:NT \l__cmd_expandable_bool
      {
        \msg_error:nnxx { cmd } { invalid-expandable-arg }
          { \iow_char:N \\ \l__cmd_function_tl } { \tl_to_str:n {#1} }
        \__cmd_bad_def:wn
      }
    \bool_set_false:N \l__cmd_grab_expandably_bool
  }
\cs_new_protected:Npn \__cmd_normalize_check_lu:N #1
  {
    \bool_if:NT \l__cmd_expandable_bool
      {
        \tl_if_empty:NF \l__cmd_last_delimiters_tl
          {
            \msg_error:nnxx { cmd } { invalid-after-optional-expandably }
              { \iow_char:N \\ \l__cmd_function_tl } { \tl_to_str:n {#1} }
            \__cmd_bad_def:wn
          }
      }
  }
\cs_new_protected:Npn \__cmd_delimiter_check:nnn #1#2#3
  {
    \tl_map_inline:Nn \l__cmd_last_delimiters_tl
      {
        \tl_if_eq:nnT {##1} {#1}
          {
            \msg_warning:nnxx { cmd } { optional-mandatory }
              {#2} {#3}
          }
      }
  }
\cs_new_protected:Npn \__cmd_bad_arg_spec:wn #1 \__cmd_break_point:n #2
  {
    \msg_error:nnxx { cmd } { bad-arg-spec }
      { \__cmd_environment_or_command: } { \tl_to_str:n {#2} }
  }
\cs_new_protected:Npn \__cmd_bad_def:wn #1 \__cmd_break_point:n #2 { }
\cs_new_protected:Npn \__cmd_add_arg_spec:n #1
  {
    \bool_lazy_and:nnT
      { ! \l__cmd_long_bool }
      { \l__cmd_some_long_bool }
      {
        \bool_if:NT \l__cmd_expandable_bool
          {
            \msg_error:nnx { cmd } { long-short-mix }
              { \iow_char:N \\ \l__cmd_function_tl }
            \__cmd_bad_def:wn
          }
        \bool_set_false:N \l__cmd_grab_expandably_bool
      }
    \bool_if:NTF \l__cmd_long_bool
      { \bool_set_true:N \l__cmd_some_long_bool }
      { \bool_set_true:N \l__cmd_some_short_bool }
    \tl_put_right:Nx \l__cmd_arg_spec_tl
      {
        \bool_if:NT \l__cmd_long_bool { + }
        \bool_if:NT \l__cmd_obey_spaces_bool { ! }
        \exp_not:n {#1}
      }
    \bool_set_false:N \l__cmd_long_bool
    \bool_set_false:N \l__cmd_obey_spaces_bool
  }
\cs_new_protected:Npn \__cmd_add_arg_spec_mandatory:n #1
  {
    \bool_if:NT \l__cmd_some_obey_spaces_bool
      {
        \msg_error:nnxx { cmd } { invalid-bang }
          { \__cmd_environment_or_command: }
          {
            \bool_if:NTF \l__cmd_obey_spaces_bool
              { \tl_to_str:n {'#1'} }
              { an~optional~argument~before~mandatory~ \tl_to_str:n {'#1'} }
          }
        \__cmd_bad_def:wn
      }
    \tl_clear:N \l__cmd_last_delimiters_tl
    \__cmd_add_arg_spec:n {#1}
  }
\cs_new_protected:Npn \__cmd_prepare_signature:n #1
  {
    \int_zero:N \l__cmd_current_arg_int
    \bool_set_false:N \l__cmd_long_bool
    \bool_set_false:N \l__cmd_obey_spaces_bool
    \bool_set_false:N \l__cmd_suppress_strip_bool
    \int_zero:N \l__cmd_m_args_int
    \bool_set_false:N \l__cmd_defaults_bool
    \tl_clear:N \l__cmd_defaults_tl
    \tl_clear:N \l__cmd_process_all_tl
    \tl_clear:N \l__cmd_process_one_tl
    \bool_set_false:N \l__cmd_process_some_bool
    \tl_clear:N \l__cmd_signature_tl
    \__cmd_prepare_signature:N #1 \q_recursion_tail \q_recursion_stop
    \bool_if:NF \l__cmd_expandable_bool { \__cmd_flush_m_args: }
  }
\cs_new_protected:Npn \__cmd_prepare_signature:N
  {
    \bool_set_false:N \l__cmd_prefixed_bool
    \__cmd_prepare_signature_bypass:N
  }
\cs_new_protected:Npn \__cmd_prepare_signature_bypass:N #1
  {
    \quark_if_recursion_tail_stop:N #1
    \use:c
      {
         __cmd_add
         \bool_if:NT \l__cmd_grab_expandably_bool { _expandable }
         _type_  \token_to_str:N #1 :w
      }
  }
\cs_new_protected:cpn { __cmd_add_type_+:w }
  {
    \__cmd_flush_m_args:
    \bool_set_true:N \l__cmd_long_bool
    \bool_set_true:N \l__cmd_prefixed_bool
    \__cmd_prepare_signature_bypass:N
  }
\cs_new_protected:cpn { __cmd_add_type_!:w }
  {
    \__cmd_flush_m_args:
    \bool_set_true:N \l__cmd_obey_spaces_bool
    \bool_set_true:N \l__cmd_prefixed_bool
    \__cmd_prepare_signature_bypass:N
  }
\cs_new_protected:cpn { __cmd_add_type_>:w } #1
  {
    \__cmd_flush_m_args:
    \bool_set_true:N \l__cmd_prefixed_bool
    \bool_set_true:N \l__cmd_process_some_bool
    \tl_put_left:Nn \l__cmd_process_one_tl { {#1} }
    \__cmd_prepare_signature_bypass:N
  }
\cs_new_protected:cpn { __cmd_add_type_=:w } #1
  {
    \__cmd_flush_m_args:
    \bool_set_true:N \l__cmd_prefixed_bool
    \bool_set_true:N \l__cmd_suppress_strip_bool
    \bool_set_true:N \l__cmd_process_some_bool
    \tl_put_left:Nn \l__cmd_process_one_tl
      { { \__cmd_arg_to_keyvalue:nn {#1} } }
    \__cmd_prepare_signature_bypass:N
  }
\cs_new_protected:Npn \__cmd_add_type_b:w
  {
    \__cmd_flush_m_args:
    \__cmd_add_default:
    \__cmd_add_grabber:N b
    \__cmd_prepare_signature:N
  }
\cs_new_protected:Npn \__cmd_add_type_D:w #1#2#3
  {
    \__cmd_flush_m_args:
    \__cmd_add_default:n {#3}
    \__cmd_add_grabber:N D
    \tl_put_right:Nn \l__cmd_signature_tl { #1 #2 }
    \__cmd_prepare_signature:N
  }
\cs_new_protected:Npn \__cmd_add_type_E:w #1#2
  {
    \__cmd_flush_m_args:
    \__cmd_add_default_E:nn {#1} {#2}
    \use:x
      {
        \__cmd_replicate_processor:nn { \tl_count:n {#1} }
          { \exp_not:o \l__cmd_process_one_tl }
      }
    \__cmd_add_grabber:N E
    \tl_put_right:Nn \l__cmd_signature_tl { {#1} }
    \__cmd_prepare_signature:N
  }
\cs_new_protected:Npn \__cmd_replicate_processor:nn #1 #2
  {
    \int_compare:nNnF {#1} > { 1 } { \use_none:nnn }
    \tl_set:Nx \l__cmd_process_one_tl
      {
        \exp_not:n { \exp_not:n {#2} \if_false: { \fi: } }
        \prg_replicate:nn { #1 - 2 }
          { \exp_not:n { \exp_not:n { {#2} } } }
        \exp_not:n { { \if_false: } \fi: \exp_not:n {#2} }
      }
  }
\cs_new_protected:Npn \__cmd_add_type_m:w
  {
    \__cmd_add_default:
    \bool_if:NTF \l__cmd_prefixed_bool
      { \__cmd_add_grabber:N m }
      { \int_incr:N \l__cmd_m_args_int }
    \__cmd_prepare_signature:N
  }
\cs_new_protected:Npn \__cmd_add_type_R:w #1#2#3
  {
    \__cmd_flush_m_args:
    \__cmd_add_default:n {#3}
    \__cmd_add_grabber:N R
    \tl_put_right:Nn \l__cmd_signature_tl { #1 #2 }
    \__cmd_prepare_signature:N
  }
\cs_new_protected:Npn \__cmd_add_type_t:w #1
  {
    \__cmd_flush_m_args:
    \__cmd_add_default:
    \__cmd_add_grabber:N t
    \tl_put_right:Nn \l__cmd_signature_tl {#1}
    \__cmd_prepare_signature:N
  }
\cs_new_protected:Npn \__cmd_add_type_v:w
  {
    \__cmd_flush_m_args:
    \exp_args:No \__cmd_add_default:n \c_novalue_tl
    \__cmd_add_grabber:N v
    \__cmd_prepare_signature:N
  }
\cs_new_protected:Npn \__cmd_flush_m_args:
  {
    \int_compare:nNnT \l__cmd_m_args_int > 0
      {
        \tl_put_right:Nx \l__cmd_signature_tl
          { \exp_not:c { __cmd_grab_m_ \int_use:N \l__cmd_m_args_int :w } }
        \tl_put_right:Nx \l__cmd_process_all_tl
          { \prg_replicate:nn { \l__cmd_m_args_int } { { } } }
      }
    \int_zero:N \l__cmd_m_args_int
  }
\cs_new_protected:Npn \__cmd_add_grabber:N #1
  {
    \tl_put_right:Nx \l__cmd_signature_tl
      {
        \exp_not:c
          {
            __cmd_grab_ #1
            \bool_if:NT \l__cmd_long_bool { _long }
            \bool_if:NT \l__cmd_obey_spaces_bool { _obey_spaces }
            \bool_lazy_and:nnT
              { \l__cmd_suppress_strip_bool }
              { \str_if_eq_p:nn {#1} { D } }
              { _no_strip }
            :w
          }
      }
    \bool_set_false:N \l__cmd_long_bool
    \bool_set_false:N \l__cmd_obey_spaces_bool
    \bool_set_false:N \l__cmd_suppress_strip_bool
    \tl_put_right:Nx \l__cmd_process_all_tl
      {
        {
          \if_charcode:w E #1 \use_i:nn \fi:
          \exp_not:o \l__cmd_process_one_tl
        }
      }
    \tl_clear:N \l__cmd_process_one_tl
  }
\cs_new_protected:Npn \__cmd_add_default:n #1
  {
    \tl_if_novalue:nTF {#1}
      { \__cmd_add_default: }
      {
        \int_incr:N \l__cmd_current_arg_int
        \bool_set_true:N \l__cmd_defaults_bool
        \tl_put_right:Nn \l__cmd_defaults_tl { { \prg_do_nothing: #1 } }
      }
  }
\cs_new_protected:Npn \__cmd_add_default:
  {
    \int_incr:N \l__cmd_current_arg_int
    \tl_put_right:Nn \l__cmd_defaults_tl { \c_novalue_tl }
  }
\cs_new_protected:Npn \__cmd_add_default_E:nn #1#2
  {
    \tl_map_function:nN {#2} \__cmd_add_default:n
    \prg_replicate:nn
      { \tl_count:n {#1} - \tl_count:n {#2} }
      { \__cmd_add_default: }
  }
\cs_new_protected:cpn { __cmd_add_expandable_type_+:w }
  {
    \bool_set_true:N \l__cmd_long_bool
    \__cmd_prepare_signature:N
  }
\cs_new_protected:Npn \__cmd_add_expandable_type_D:w
  { \__cmd_add_expandable_type_D_aux:NNNn D }
\cs_new_protected:Npn \__cmd_add_expandable_type_D_aux:NNNn #1#2#3#4
  {
    \__cmd_add_default:n {#4}
    \tl_if_eq:nnTF {#2} {#3}
      { \__cmd_add_expandable_type_D_aux:NN #1 #2 }
      { \__cmd_add_expandable_type_D_aux:NNN #1 #2 #3 }
    \__cmd_prepare_signature:N
  }
\cs_new_protected:Npn \__cmd_add_expandable_type_D_aux:NNN #1#2#3
  {
    \bool_if:NTF \l__cmd_long_bool
      { \cs_set:cpx }
      { \cs_set_nopar:cpx }
      { \l__cmd_expandable_aux_name_tl } ##1 ##2 #2 ##3 \q__cmd ##4 #3
      { ##1 {##2} {##3} {##4} }
    \__cmd_add_expandable_grabber:nn {#1}
      {
        \exp_not:c  { \l__cmd_expandable_aux_name_tl }
        \exp_not:n { #2 #3 }
      }
  }
\cs_new_protected:Npn \__cmd_add_expandable_type_D_aux:NN #1#2
  {
    \bool_if:NTF \l__cmd_long_bool
      { \cs_set:cpx }
      { \cs_set_nopar:cpx }
      { \l__cmd_expandable_aux_name_tl } ##1 #2 ##2 #2
      { ##1 {##2} }
    \__cmd_add_expandable_grabber:nn { #1_alt }
      {
        \exp_not:c  { \l__cmd_expandable_aux_name_tl }
        \exp_not:n {#2}
      }
  }
\cs_new_protected:Npn \__cmd_add_expandable_type_E:w #1#2
  {
    \__cmd_add_default_E:nn {#1} {#2}
    \tl_clear:N \l__cmd_tmpb_tl
    \tl_map_function:nN {#1} \__cmd_add_expandable_type_E_aux:n
    \__cmd_add_expandable_grabber:nn
      { E \bool_if:NT \l__cmd_long_bool { _long } }
      {
        { \exp_not:o \l__cmd_tmpb_tl }
        {
          \prg_replicate:nn { \tl_count:n {#1} }
            { { \c_novalue_tl } }
        }
      }
    \__cmd_prepare_signature:N
  }
\cs_new_protected:Npn \__cmd_add_expandable_type_E_aux:n #1
  {
    \__cmd_get_grabber:NN #1 \l__cmd_tmpa_tl
    \tl_put_right:Nx \l__cmd_tmpb_tl
      { \exp_not:o \l__cmd_tmpa_tl \exp_not:N #1 }
  }
\cs_new_protected:Npn \__cmd_add_expandable_type_m:w
  {
    \__cmd_add_default:
    \__cmd_add_expandable_grabber:nn
      { m \bool_if:NT \l__cmd_long_bool { _long } } { }
    \__cmd_prepare_signature:N
  }
\cs_new_protected:Npn \__cmd_add_expandable_type_R:w
  { \__cmd_add_expandable_type_D_aux:NNNn R }
\cs_new_protected:Npn \__cmd_add_expandable_type_t:w #1
  {
    \__cmd_add_default:
    \__cmd_get_grabber:NN #1 \l__cmd_tmpa_tl
    \__cmd_add_expandable_grabber:nn { t }
      {
        \exp_not:o \l__cmd_tmpa_tl
        \exp_not:N #1
      }
    \__cmd_prepare_signature:N
  }
\cs_new_protected:Npn \__cmd_add_expandable_grabber:nn #1#2
  {
    \tl_put_right:Nx \l__cmd_signature_tl
      { \exp_not:c { __cmd_expandable_grab_ #1 :w } #2 }
  }
\cs_new_protected:Npn \__cmd_get_grabber:NN #1#2
  {
    \cs_set:Npn \__cmd_tmp:w ##1 #1 {##1}
    \exp_args:Nc \__cmd_get_grabber_auxi:NN
      { __cmd_grabber_ \token_to_str:N #1 :w } #2
  }
\cs_new_protected:Npn \__cmd_get_grabber_auxi:NN #1#2
  {
    \cs_if_eq:NNTF \__cmd_tmp:w #1
      { \tl_set:Nn #2 {#1} }
      {
        \cs_if_exist:NTF #1
          {
            \int_gincr:N \g__cmd_grabber_int
            \exp_args:Nc \__cmd_get_grabber_auxi:NN
              {
                __cmd_grabber_
                - \int_use:N \g__cmd_grabber_int :w
              }
              #2
          }
          { \__cmd_get_grabber_auxii:NN #1 #2 }
      }
  }
\cs_new_protected:Npn \__cmd_get_grabber_auxii:NN #1#2
  {
    \cs_set_eq:NN #1 \__cmd_tmp:w
    \tl_set:Nn #2 {#1}
  }
\cs_new_protected:Npn \__cmd_copy:NN #1 #2
  {
    \use:x
      {
        \int_set:Nn \tex_escapechar:D { 92 }
        \exp_not:N \__cmd_cmd_type_cases:NnnnnnF \exp_not:N #2
          { \__cmd_copy_command:nnNN }
          { \__cmd_copy_expandable:nnNN }
          { \__cmd_copy_optimized:nnNN }
          { \__cmd_copy_environment:nnNN }
          { \__cmd_copy_environment_end:nnNN }
          { \__cmd_cant_copy:nwn { non-ltcmd } }
            { \cs_to_str:N #1 } { \cs_to_str:N #2 }
            \exp_not:N #1 \exp_not:N #2
        \exp_not:N \__cmd_break_point:n { \cs_to_str:N #2 }
        \int_set:Nn \tex_escapechar:D { \int_use:N \tex_escapechar:D }
      }
  }
\cs_new_protected:Npn \__cmd_set_eq_if_exist:NN #1 #2
  { \cs_if_exist:NTF #2 { \cs_set_eq:NN } { \use_none:nn } #1 #2 }
\cs_generate_variant:Nn \__cmd_set_eq_if_exist:NN { cc }
\cs_new_protected:Npn \__cmd_cant_copy:nwn #1 #2 \__cmd_break_point:n #3
  { \msg_error:nnnn { cmd } { copy-bug } {#1} {#3} }
\msg_new:nnn { cmd } { copy-bug }
  {
    Error~while~copying~command~\iow_char:N\\#2:\\
    \str_case:nn {#1}
      {
        { non-ltcmd } { Command~is~not~a~valid~ltcmd~command. }
        { unknown-type } { Found~an~unknown~argument~type. }
        { invalid-end }
          { Target~command~is~not~named~\iow_char:N \\end<name>. }
      }
  }
\tl_gput_right:Nn \@declarecommandcopylisthook
  { { \__kernel_cmd_if_xparse:NTF \__cmd_copy:NN } }
\cs_new_protected:Npn \__cmd_copy_command:nnNN #1 #2 #3 #4
  {
    \cs_set_eq:cc { #1 ~ code } { #2 ~ code }
    \__cmd_set_eq_if_exist:cc { #1 ~ defaults } { #2 ~ defaults }
    \cs_set_protected_nopar:Npx #3
      { \exp_after:wN \__cmd_copy_command:NnNNnnnn #4 {#1} }
  }
\cs_new:Npn \__cmd_copy_command:NnNNnnnn #1 #2 #3 #4 #5 #6 #7 #8
  {
    #1 \exp_not:n { {#2} }
    \exp_not:c { #8 ~ } \exp_not:c { #8 ~ code }
    \exp_not:n { {#5} {#6} {#7} }
  }
\cs_new_protected:Npn \__cmd_copy_expandable:nnNN #1 #2 #3 #4
  {
    \cs_set_eq:cc { #1 ~ code } { #2 ~ code }
    \__cmd_set_eq_if_exist:cc { #1 ~ } { #2 ~ }
    \__cmd_set_eq_if_exist:cc { #1 ~ \c_space_tl } { #2 ~ \c_space_tl }
    \__cmd_set_eq_if_exist:cc { #1 ~ defaults } { #2 ~ defaults }
    \exp_after:wN \__cmd_copy_expandable_signature:NnNNNNnnn #4 {#1} {#2}
    \token_if_protected_macro:NTF #4
      { \cs_set_protected_nopar:Npx }{ \cs_set_nopar:Npx }
      #3
      { \exp_after:wN \__cmd_copy_expandable:NnNNNNnnn #4 {#1} {#2} }
  }
\cs_new_protected:Npn \__cmd_copy_optimized:nnNN #1#2#3#4
  {
    \cs_set_eq:cc { #1 ~ code } { #2 ~ code }
    \token_if_protected_macro:NTF #4
      { \cs_set_protected_nopar:Npe }
      { \cs_set_nopar:Npe }
        #3
        {
          \exp_not:N \__cmd_start_optimized:
          \exp_not:c { #1 ~ code }
        }
  }
\cs_new:Npn \__cmd_copy_expandable:NnNNNNnnn #1 #2 #3 #4 #5 #6 #7 #8 #9
  {
    \exp_not:N #1 \exp_not:n { {#2} }
    \exp_not:c { #8 ~ }
    \exp_not:c
      {
        #8 ~
        \str_if_eq:eeT
            { \exp_not:c { #9 ~ \c_space_tl } } { \exp_not:N #4 }
          { \c_space_tl }
      }
    \exp_not:c { #8 ~ code }
    \str_if_eq:eeTF { \exp_not:N #6 } { ? }
      { ? }
      { \exp_not:c { #8 ~ defaults } }
    { \exp_not:V \l__cmd_tmpa_tl }
  }
\cs_new_protected:Npn \__cmd_copy_expandable_signature:NnNNNNnnn
    #1 #2 #3 #4 #5 #6 #7 #8 #9
  {
    \int_zero:N \l__cmd_current_arg_int
    \tl_clear:N \l__cmd_tmpa_tl
    \__cmd_copy_expandable:nnN {#8} {#9} #7
      \q_recursion_tail \q_recursion_stop
  }
\cs_new_protected:Npn \__cmd_copy_expandable:nnN #1 #2 #3
  {
    \quark_if_recursion_tail_stop:n {#3}
    \int_incr:N \l__cmd_current_arg_int
    \exp_after:wN \__cmd_copy_parse_grabber:w \token_to_str:N #3 {#1} {#2}
  }
\use:x
  {
    \cs_new_protected:Npn \exp_not:N \__cmd_copy_parse_grabber:w ##1
        \tl_to_str:n { expandable_grab_ } ##2 \tl_to_str:n { :w }
      {
        \tl_put_right:Nx \exp_not:N \l__cmd_tmpa_tl
          { \exp_not:N \exp_not:c { __cmd_expandable_grab_##2:w } }
        \exp_not:N \cs_if_exist_use:cF { __cmd_copy_grabber_##2:w }
          { \__cmd_cant_copy:nwn { unknown-type } }
      }
  }
\cs_new_protected:Npn \__cmd_copy_grabber_D:w #1 #2 #3 #4 #5
  {
    \tl_put_right:Nx \l__cmd_tmpa_tl
      {
        \exp_not:c { #1 ~ (arg ~ \int_use:N \l__cmd_current_arg_int ) }
        \exp_not:n { #4 #5 }
      }
    \cs_set_eq:cc
      { #1 ~ (arg ~ \int_use:N \l__cmd_current_arg_int ) }
      { #2 ~ (arg ~ \int_use:N \l__cmd_current_arg_int ) }
    \__cmd_copy_expandable:nnN {#1} {#2}
  }
\cs_new_protected:Npn \__cmd_copy_grabber_D_alt:w #1 #2 #3 #4
  { \__cmd_copy_grabber_D:w {#1} {#2} {#3} {#4} { } }
\cs_new_eq:NN \__cmd_copy_grabber_R:w \__cmd_copy_grabber_D:w
\cs_new_eq:NN \__cmd_copy_grabber_R_alt:w \__cmd_copy_grabber_D_alt:w
\cs_new_protected:Npn \__cmd_copy_grabber_E:w #1 #2 #3 #4
  {
    \tl_put_right:Nn \l__cmd_tmpa_tl { {#3} {#4} }
    \int_add:Nn \l__cmd_current_arg_int { \tl_count:n {#4} - 1 }
    \__cmd_copy_expandable:nnN {#1} {#2}
  }
\cs_new_eq:NN \__cmd_copy_grabber_E_long:w \__cmd_copy_grabber_E:w
\cs_new_protected:Npn \__cmd_copy_grabber_t:w #1 #2 #3 #4
  {
    \tl_put_right:Nn \l__cmd_tmpa_tl { #3 #4 }
    \__cmd_copy_expandable:nnN {#1} {#2}
  }
\cs_new_protected:Npn \__cmd_copy_grabber_m:w { \__cmd_copy_expandable:nnN }
\cs_new_eq:NN \__cmd_copy_grabber_m_long:w \__cmd_copy_grabber_m:w
\cs_new_protected:Npn \__cmd_copy_environment:nnNN #1 #2 #3 #4
  {
    \cs_set_eq:cc { environment~ #1 ~ code } { environment~ #2 ~ code }
    \__cmd_set_eq_if_exist:cc
      { environment~ #1 ~ defaults } { environment~ #2 ~ defaults }
    \cs_set_protected_nopar:cpx { environment~ #1 }
      { \exp_after:wN \__cmd_copy_environment:Nnnnnnn #4 {#1} }
    \cs_set_eq:cc {#1} { environment~ #1 }
  }
\cs_new:Npn \__cmd_copy_environment:Nnnnnnn #1 #2 #3 #4 #5 #6 #7
  { #1 \exp_not:n { {#2} } {#7} \exp_not:n { {#4} {#5} {#6} } }
\cs_new_protected:Npn \__cmd_copy_environment_end:nnNN #1 #2
  {
    \__cmd_check_end:Nn \l__cmd_tmpa_tl {#1}
    \__cmd_check_end:Nn \l__cmd_tmpb_tl {#2}
    \exp_args:Noo \__cmd_copy_environment_end_aux:nnNN
      { \l__cmd_tmpa_tl } { \l__cmd_tmpb_tl }
  }
\cs_new_protected:Npn \__cmd_copy_environment_end_aux:nnNN #1 #2 #3 #4
  {
    \cs_set_nopar:cpx { environment~ #1 ~end }
      { \exp_not:c { environment~ #1 ~end~aux } }
    \cs_set_eq:cc
      { environment~ #1 ~end~aux~ } { environment~ #2 ~end~aux~ }
    \cs_set_eq:cc { end #1 } { environment~ #1 ~end }
  }
\cs_new_protected:Npn \__cmd_check_end:Nn #1 #2
  {
    \tl_set:Nx #1 { \__cmd_check_end:n {#2} }
    \token_if_eq_meaning:NNT #1 \q_nil
      { \__cmd_cant_copy:nwn { invalid-end } }
  }
\cs_set_protected:Npn \__cmd_tmp:w #1
  {
    \cs_new:Npn \__cmd_check_end:n ##1
      {
        \exp_after:wN \__cmd_check_end:w \tl_to_str:n {##1}
          #1 \q_mark #1 \q_stop
      }
    \cs_new:Npn \__cmd_check_end:w ##1 #1 ##2 #1 ##3 \q_stop
      { \if_meaning:w ##2 \q_mark \exp_not:N \q_nil \else: ##2 \fi: }
  }
\exp_args:No \__cmd_tmp:w { \tl_to_str:n { end } }
\cs_new_protected:Npn \__cmd_show:N #1
  {
    \use:x
      {
        \int_set:Nn \tex_escapechar:D { 92 }
        \exp_not:N \__cmd_cmd_type_cases:NnnnnnF \exp_not:N #1
          { \__cmd_show_command:N }
          { \__cmd_show_expandable:N }
          { \__cmd_show_optimized:N }
          { \__cmd_show_environment:N }
          { \__cmd_show_environment_end:N }
          { \__cmd_cant_copy:nwn { non-ltcmd } }
            \exp_not:N #1
        \exp_not:N \__cmd_break_point:n { \cs_to_str:N #1 }
        \int_set:Nn \tex_escapechar:D { \int_use:N \tex_escapechar:D }
      }
  }
\cs_new_protected:Npn \__cmd_show_command:N #1
  { \exp_after:wN \__cmd_show_command:NnNNwN #1 \q__cmd #1 }
\cs_new_protected:Npn \__cmd_show_command:NnNNwN #1 #2 #3 #4 #5 \q__cmd #6
  {
    \__cmd_show_command_aux:NnNNn \tl_show:x
      { document~command } #6 #4 {#2}
  }
\cs_new_protected:Npn \__cmd_show_expandable:N #1
  { \exp_after:wN \__cmd_show_expandable:NnNNNNnN #1 #1 }
\cs_new_protected:Npn \__cmd_show_expandable:NnNNNNnN #1 #2 #3 #4 #5 #6 #7 #8
  {
    \exp_args:NNe \__cmd_show_command_aux:NnNNn \tl_show:x
      { \token_if_protected_macro:NF #8 { expandable~ } document~command }
      #8 #5 {#2}
  }
\cs_new_protected:Npn \__cmd_show_command_aux:NnNNn #1 #2 #3 #4 #5
  {
    \__cmd_split_signature:n {#5}
    #1
      {
        \token_to_str:N #3 = #2: \iow_newline:
        \tl_use:N \l__cmd_tmpa_tl
        -> \cs_replacement_spec:N #4
      }
  }
\cs_new_protected:Npn \__cmd_show_optimized:N #1
  {
    \exp_args:Nc \__cmd_show_optimized:NN
      { \cs_to_str:N #1 \c_space_tl code }
      #1
  }
\cs_new_protected:Npn \__cmd_show_optimized:NN #1#2
  {
    \cs_set:Npe \__cmd_show_optimized_aux:N ##1
      {
        \c_space_tl \c_space_tl \c_hash_str ##1 :
        \bool_lazy_or:nnT
          { \token_if_long_macro_p:N #1 }
          { \token_if_protected_long_macro_p:N #1 }
            { + } m
         \iow_newline:
      }
    \tl_show:e
      {
        \token_to_str:N #2 =
          \bool_lazy_or:nnF
            { \token_if_protected_macro_p:N #1 }
            { \token_if_protected_long_macro_p:N #1 }
              { expandable ~ } document~command:
        \iow_newline:
        \int_step_function:nN
          {
            \int_div_truncate:nn
              { \tl_count:e { \cs_parameter_spec:N #1 } }
              { 2 }
          }
          \__cmd_show_optimized_aux:N
        ->
        \cs_replacement_spec:N #1
      }
  }
\cs_generate_variant:Nn \tl_count:n { e }
\cs_new_protected:Npn \__cmd_show_environment:N #1
  {
    \exp_after:wN \__cmd_show_environment:Nnnw #1 \q__cmd
    \tl_show:x
      {
        \token_to_str:N \end { \cs_to_str:N #1 } : \iow_newline:
        -> \exp_args:Nc \cs_replacement_spec:N
          { environment~ \cs_to_str:N #1 ~end~aux~ }
      }
  }
\cs_new_protected:Npn \__cmd_show_environment:Nnnw #1 #2 #3 #4 \q__cmd
  {
    \use:x
      {
        \__cmd_show_command_aux:NnNNn \__cmd_show:x { document~environment }
          { \exp_not:N \begin {#3} }
          \exp_not:c { environment~ #3 ~ code }
          {#2}
      }
  }
\cs_new_protected:Npn \__cmd_show:x #1
  { \iow_term:x { > ~ #1 . \iow_newline: } }
\cs_new_protected:Npn \__cmd_show_environment_end:N #1
  {
    \exp_args:NNx \__cmd_check_end:Nn \l__cmd_tmpa_tl { \cs_to_str:N #1 }
    \exp_args:Nc \__cmd_show_environment:N { \l__cmd_tmpa_tl }
  }
\tl_gput_right:Nn \@showcommandlisthook
  { { \__kernel_cmd_if_xparse:NTF \__cmd_show:N } }
\tl_gput_right:Nn \@showenvironmentlisthook
  { { \__kernel_cmd_if_xparse:NTF \__cmd_show:N } }
\cs_new_protected:Npn \__cmd_split_signature:n #1
  {
    \int_set:Nn \l__cmd_current_arg_int { 1 }
    \tl_clear:N \l__cmd_tmpa_tl
    \tl_clear:N \l__cmd_tmpb_tl
    \__cmd_split_signature_loop:Nw #1 \q_recursion_tail \q_recursion_stop
  }
\cs_new_protected:Npn \__cmd_split_signature_loop:Nw #1
  {
    \quark_if_recursion_tail_stop:N #1
    \tl_if_empty:NT \l__cmd_tmpb_tl { \__cmd_split_start_item: }
    \tl_if_exist:cTF { c__cmd_show_type_#1_tl }
      {
        \use:c
          {
            __cmd_show_
            \if_case:w \tl_use:c { c__cmd_show_type_#1_tl } \exp_stop_f:
            delim \or: delims \or: delims_opt \or: opt \or:
            e \or: E \or: prefix \or: processor \fi: :Nw
          } #1
      }
      { \__cmd_split_end_item:n {#1} \__cmd_split_signature_loop:Nw }
  }
\cs_set_protected:Npn \__cmd_tmp:w #1 #2
  {
    \quark_if_nil:nF {#1}
      { \tl_const:cn { c__cmd_show_type_#1_tl } {#2} \__cmd_tmp:w }
  }
\__cmd_tmp:w t0 r1 d1 R2 D2 O3 e4 E5 +6 !6 >7 =7 \q_nil \q_nil
\cs_new_protected:Npn \__cmd_show_delim:Nw #1 #2
  { \__cmd_split_end_item:n { #1 #2 } \__cmd_split_signature_loop:Nw }
\cs_new_protected:Npn \__cmd_show_delims:Nw #1 #2 #3
  { \__cmd_split_end_item:n { #1 #2 #3 } \__cmd_split_signature_loop:Nw }
\cs_new_protected:Npn \__cmd_show_delims_opt:Nw #1 #2 #3 #4
  { \__cmd_split_end_item:n { #1 #2 #3 {#4} } \__cmd_split_signature_loop:Nw }
\cs_new_protected:Npn \__cmd_show_opt:Nw #1 #2
  { \__cmd_split_end_item:n { #1 {#2} } \__cmd_split_signature_loop:Nw }
\cs_new_protected:Npn \__cmd_show_e:Nw #1 #2
  {
    \tl_map_inline:nn {#2}
      {
        \__cmd_split_start_item:
        \__cmd_split_end_item:n { #1 ##1 }
      }
    \__cmd_split_signature_loop:Nw
  }
\cs_set_protected:Npn \__cmd_tmp:w #1
  {
    \cs_new_protected:Npn \__cmd_show_E:Nw ##1 ##2 ##3
      {
        \cs_set_protected:Npn \__cmd_tmp:w ####1 ####2
          {
            \__cmd_split_start_item:
            \__cmd_split_end_item:n { ##1 ####1 {####2} }
          }
        \__cmd_tl_mapthread_function:nnN {##2}
          { ##3 {#1} {#1} {#1} {#1} {#1} {#1} {#1} {#1} {#1} } \__cmd_tmp:w
        \__cmd_split_signature_loop:Nw
      }
  }
\exp_args:NV \__cmd_tmp:w \c_novalue_tl
\cs_new_protected:Npn \__cmd_show_prefix:Nw #1
  { \__cmd_split_add_item:n {#1} \__cmd_split_signature_loop:Nw }
\cs_new_protected:Npn \__cmd_show_processor:Nw #1 #2
  { \__cmd_split_add_item:n { #1 {#2} } \__cmd_split_signature_loop:Nw }
\cs_new_protected:Npn \__cmd_split_start_item:
  {
    \tl_set:Nx \l__cmd_tmpb_tl
      { ~ \c_space_tl \c_hash_str \int_use:N \l__cmd_current_arg_int : }
  }
\cs_new_protected:Npn \__cmd_split_add_item:n #1
  { \tl_put_right:Nx \l__cmd_tmpb_tl { \tl_to_str:n {#1} } }
\cs_new_protected:Npn \__cmd_split_end_item:n #1
  {
    \tl_put_right:Nx \l__cmd_tmpa_tl
      { \l__cmd_tmpb_tl \tl_to_str:n {#1} \iow_newline: }
    \tl_clear:N \l__cmd_tmpb_tl
    \int_incr:N \l__cmd_current_arg_int
  }
\cs_new_protected:Npn \__cmd_grab_b:w
  { \__cmd_grab_b_aux:NNw \cs_set_protected_nopar:Npn \tl_trim_spaces:n }
\cs_new_protected:Npn \__cmd_grab_b_long:w
  { \__cmd_grab_b_aux:NNw \cs_set_protected:Npn \tl_trim_spaces:n }
\cs_new_protected:Npn \__cmd_grab_b_obey_spaces:w
  { \__cmd_grab_b_aux:NNw \cs_set_protected_nopar:Npn \exp_not:n }
\cs_new_protected:Npn \__cmd_grab_b_long_obey_spaces:w
  { \__cmd_grab_b_aux:NNw \cs_set_protected:Npn \exp_not:n }
\cs_new_protected:Npn \__cmd_grab_b_aux:NNw #1#2#3 \__cmd_run_code:
  {
    \__cmd_grab_D_aux:NNnNN \begin \end {#3} #1 \use_ii:nn
    \tl_put_left:Nn \l__cmd_signature_tl { \__cmd_grab_b_end:Nw #2 }
    \tl_set_eq:NN \l__cmd_saved_args_tl \l__cmd_args_tl
    \tl_clear:N \l__cmd_args_tl
    \exp_args:Nc \l__cmd_fn_tl { begin ~ }
  }
\cs_new_protected:Npn \__cmd_grab_b_end:Nw #1#2 \__cmd_run_code:
  {
    \tl_set:Nx \l__cmd_args_tl
      {
        \exp_not:V \l__cmd_saved_args_tl
        { \exp_after:wN #1 \l__cmd_args_tl }
      }
    #2
    \__cmd_run_code:
    \end
  }
\cs_new_protected:Npn \__cmd_grab_D:w #1#2#3 \__cmd_run_code:
  {
    \__cmd_grab_D_aux:NNnNNN #1 #2 {#3} \cs_set_protected_nopar:Npn
      \__cmd_peek_nonspace_remove:NTF \use_ii:nn
  }
\cs_new_protected:Npn \__cmd_grab_D_long:w #1#2#3 \__cmd_run_code:
  {
    \__cmd_grab_D_aux:NNnNNN #1 #2 {#3} \cs_set_protected:Npn
      \__cmd_peek_nonspace_remove:NTF \use_ii:nn
  }
\cs_new_protected:Npn \__cmd_grab_D_obey_spaces:w #1#2#3 \__cmd_run_code:
  {
    \__cmd_grab_D_aux:NNnNNN #1 #2 {#3} \cs_set_protected_nopar:Npn
      \__cmd_peek_meaning_remove:NTF \use_ii:nn
  }
\cs_new_protected:Npn \__cmd_grab_D_long_obey_spaces:w #1#2#3 \__cmd_run_code:
  {
    \__cmd_grab_D_aux:NNnNNN #1 #2 {#3} \cs_set_protected:Npn
      \__cmd_peek_meaning_remove:NTF \use_ii:nn
  }
\cs_new_protected:Npn \__cmd_grab_D_no_strip:w
  #1#2#3 \__cmd_run_code:
  {
    \__cmd_grab_D_aux:NNnNNN #1 #2 {#3} \cs_set_protected_nopar:Npn
      \__cmd_peek_nonspace_remove:NTF \use_none:n
  }
\cs_new_protected:Npn \__cmd_grab_D_long_no_strip:w
  #1#2#3 \__cmd_run_code:
  {
    \__cmd_grab_D_aux:NNnNNN #1 #2 {#3} \cs_set_protected:Npn
      \__cmd_peek_nonspace_remove:NTF \use_none:n
  }
\cs_new_protected:Npn \__cmd_grab_D_obey_spaces_no_strip:w
  #1#2#3 \__cmd_run_code:
  {
    \__cmd_grab_D_aux:NNnNNN #1 #2 {#3} \cs_set_protected_nopar:Npn
      \__cmd_peek_meaning_remove:NTF \use_none:n
  }
\cs_new_protected:Npn \__cmd_grab_D_long_obey_spaces_no_strip:w
  #1#2#3 \__cmd_run_code:
  {
    \__cmd_grab_D_aux:NNnNNN #1 #2 {#3} \cs_set_protected:Npn
      \__cmd_peek_meaning_remove:NTF \use_none:n
  }
\cs_new_protected:Npn \__cmd_grab_D_aux:NNnNNN #1#2#3#4#5#6
  {
    \__cmd_grab_D_aux:NNnNN #1#2 {#3} #4 #6
    #5 #1
      { \__cmd_grab_D_call:Nw #1 }
      { \__cmd_add_arg:o \c_novalue_tl }
  }
\cs_new_protected:Npn \__cmd_grab_D_aux:NNnNN #1#2#3#4#5
  {
    \tl_set:Nn \l__cmd_signature_tl {#3}
    \exp_after:wN #4 \l__cmd_fn_tl ##1 #2
      {
        \tl_if_in:nnTF {##1} {#1}
          { \__cmd_grab_D_nested:NNnN #1 #2 {##1} #4 }
          {
            \tl_if_blank:oTF { \use_none:n ##1 }
              { \__cmd_add_arg:o { \use_none:n ##1 } }
              {
                \str_if_eq:eeTF
                  { \exp_not:o { \use_none:n ##1 } }
                  { { \exp_not:o { \use_ii:nnn ##1 \q_nil } } }
                  { \__cmd_add_arg:o { #5 ##1 } }
                  { \__cmd_add_arg:o { \use_none:n ##1 } }
              }
          }
      }
  }
\tl_new:N \l__cmd_nesting_a_tl
\tl_new:N \l__cmd_nesting_b_tl
\quark_new:N \q__cmd
\cs_new_protected:Npn \__cmd_grab_D_nested:NNnN #1#2#3#4
  {
    \tl_clear:N \l__cmd_nesting_a_tl
    \tl_clear:N \l__cmd_nesting_b_tl
    \exp_after:wN #4 \l__cmd_fn_tl ##1 #1 ##2 \q__cmd ##3 #2
      {
        \tl_put_right:No \l__cmd_nesting_a_tl { \use_none:n ##1 #1 }
        \tl_put_right:No \l__cmd_nesting_b_tl { \use_i:nn #2 ##3 }
        \tl_if_in:nnTF {##2} {#1}
          {
            \l__cmd_fn_tl
              \q_nil ##2 \q__cmd \ERROR
          }
          {
            \tl_put_right:Nx \l__cmd_nesting_a_tl
              { \__cmd_grab_D_nested:w \q_nil ##2 \q_stop }
            \tl_if_in:NnTF \l__cmd_nesting_b_tl {#1}
              {
                \tl_set_eq:NN \l__cmd_tmpa_tl \l__cmd_nesting_b_tl
                \tl_clear:N \l__cmd_nesting_b_tl
                \exp_after:wN \l__cmd_fn_tl \exp_after:wN
                  \q_nil \l__cmd_tmpa_tl \q_nil \q__cmd \ERROR
              }
              {
                \tl_put_right:No \l__cmd_nesting_a_tl
                  \l__cmd_nesting_b_tl
                \__cmd_add_arg:V \l__cmd_nesting_a_tl
              }
          }
      }
    \l__cmd_fn_tl #3 \q_nil \q__cmd \ERROR
  }
\cs_new:Npn \__cmd_grab_D_nested:w #1 \q_nil \q_stop
  { \exp_not:o { \use_none:n #1 } }
\cs_new_protected_nopar:Npn \__cmd_grab_D_call:Nw #1
  {
    \token_if_eq_catcode:NNTF + #1
      {
        \exp_after:wN \exp_after:wN \exp_after:wN
          \l__cmd_fn_tl \char_generate:nn { `#1 } { 11 }
      }
      {
        \__cmd_token_if_cs:NTF #1
          {
            \exp_after:wN \l__cmd_fn_tl
            \cs:w \cs_to_str:N #1 ~ \cs_end:
          }
          {
            \exp_after:wN \l__cmd_fn_tl
            \token_to_str:N #1
          }
      }
  }
\cs_new_protected:Npn \__cmd_grab_E:w #1#2 \__cmd_run_code:
  {
    \__cmd_grab_E:nnNN {#1} {#2}
      \cs_set_protected_nopar:Npn
      \__cmd_peek_nonspace_remove:NTF
  }
\cs_new_protected:Npn \__cmd_grab_E_long:w #1#2 \__cmd_run_code:
  {
    \__cmd_grab_E:nnNN {#1} {#2}
      \cs_set_protected:Npn
      \__cmd_peek_nonspace_remove:NTF
  }
\cs_new_protected:Npn \__cmd_grab_E_obey_spaces:w #1#2 \__cmd_run_code:
  {
    \__cmd_grab_E:nnNN {#1} {#2}
      \cs_set_protected_nopar:Npn
      \__cmd_peek_meaning_remove:NTF
  }
\cs_new_protected:Npn \__cmd_grab_E_long_obey_spaces:w #1#2 \__cmd_run_code:
  {
    \__cmd_grab_E:nnNN {#1} {#2}
      \cs_set_protected:Npn
      \__cmd_peek_meaning_remove:NTF
  }
\cs_new_protected:Npn \__cmd_grab_E:nnNN #1#2#3#4
  {
    \exp_after:wN #3 \l__cmd_fn_tl ##1##2##3
      {
        \prop_put:Nnn \l__cmd_tmp_prop {##1} {##3}
        \__cmd_grab_E_loop:NnN #4 { } ##2 \q_recursion_stop
      }
    \prop_clear:N \l__cmd_tmp_prop
    \tl_set:Nn \l__cmd_signature_tl {#2}
    \cs_set_protected:Npn \__cmd_grab_E_finalise:
      {
        \tl_map_inline:nn {#1}
          {
            \prop_get:NnNF \l__cmd_tmp_prop {####1} \l__cmd_tmpb_tl
              { \tl_set_eq:NN \l__cmd_tmpb_tl \c_novalue_tl }
            \tl_put_right:Nx \l__cmd_args_tl
              { { \exp_not:V \l__cmd_tmpb_tl } }
          }
        \l__cmd_signature_tl \__cmd_run_code:
      }
    \__cmd_grab_E_loop:NnN #4 { } #1 \q_recursion_tail \q_recursion_stop
  }
\cs_new_protected:Npn \__cmd_grab_E_loop:NnN #1#2#3#4 \q_recursion_stop
  {
    \cs_if_eq:NNTF #3 \q_recursion_tail
      { \__cmd_grab_E_finalise: }
      {
        #1 #3
          { \l__cmd_fn_tl #3 {#2#4} }
          { \__cmd_grab_E_loop:NnN #1 {#2#3} #4 \q_recursion_stop }
      }
  }
\cs_new_protected:Npn \__cmd_grab_E_finalise: { }
\cs_new_protected:Npn \__cmd_grab_m:w #1 \__cmd_run_code:
  {
    \tl_set:Nn \l__cmd_signature_tl {#1}
    \exp_after:wN \cs_set_protected_nopar:Npn \l__cmd_fn_tl ##1
      { \__cmd_add_arg:n {##1} }
    \l__cmd_fn_tl
  }
\cs_new_protected:Npn \__cmd_grab_m_long:w #1 \__cmd_run_code:
  {
    \tl_set:Nn \l__cmd_signature_tl {#1}
    \exp_after:wN \cs_set_protected:Npn \l__cmd_fn_tl ##1
      { \__cmd_add_arg:n {##1} }
    \l__cmd_fn_tl
  }
\cs_new_protected_nopar:Npn \__cmd_grab_m_aux:Nnnnnnnnn #1#2#3#4#5#6#7#8#9
  {
    \tl_put_right:No \l__cmd_args_tl
      { #1 {#2} {#3} {#4} {#5} {#6} {#7} {#8} {#9} }
    \l__cmd_signature_tl \__cmd_run_code:
  }
\cs_new_protected:cpn { __cmd_grab_m_1:w } #1 \__cmd_run_code:
  {
    \tl_set:Nn \l__cmd_signature_tl {#1}
    \exp_after:wN \cs_set_eq:NN \l__cmd_fn_tl \__cmd_grab_m_aux:Nnnnnnnnn
    \l__cmd_fn_tl \use_none:nnnnnnn { } { } { } { } { } { } { }
  }
\cs_new_protected:cpn { __cmd_grab_m_2:w } #1 \__cmd_run_code:
  {
    \tl_set:Nn \l__cmd_signature_tl {#1}
    \exp_after:wN \cs_set_eq:NN \l__cmd_fn_tl \__cmd_grab_m_aux:Nnnnnnnnn
    \l__cmd_fn_tl \use_none:nnnnnn { } { } { } { } { } { }
  }
\cs_new_protected:cpn { __cmd_grab_m_3:w } #1 \__cmd_run_code:
  {
    \tl_set:Nn \l__cmd_signature_tl {#1}
    \exp_after:wN \cs_set_eq:NN \l__cmd_fn_tl \__cmd_grab_m_aux:Nnnnnnnnn
    \l__cmd_fn_tl \use_none:nnnnn { } { } { } { } { }
  }
\cs_new_protected:cpn { __cmd_grab_m_4:w } #1 \__cmd_run_code:
  {
    \tl_set:Nn \l__cmd_signature_tl {#1}
    \exp_after:wN \cs_set_eq:NN \l__cmd_fn_tl \__cmd_grab_m_aux:Nnnnnnnnn
    \l__cmd_fn_tl \use_none:nnnn { } { } { } { }
  }
\cs_new_protected:cpn { __cmd_grab_m_5:w } #1 \__cmd_run_code:
  {
    \tl_set:Nn \l__cmd_signature_tl {#1}
    \exp_after:wN \cs_set_eq:NN \l__cmd_fn_tl \__cmd_grab_m_aux:Nnnnnnnnn
    \l__cmd_fn_tl \use_none:nnn { } { } { }
  }
\cs_new_protected:cpn { __cmd_grab_m_6:w } #1 \__cmd_run_code:
  {
    \tl_set:Nn \l__cmd_signature_tl {#1}
    \exp_after:wN \cs_set_eq:NN \l__cmd_fn_tl \__cmd_grab_m_aux:Nnnnnnnnn
    \l__cmd_fn_tl \use_none:nn { } { }
  }
\cs_new_protected:cpn { __cmd_grab_m_7:w } #1 \__cmd_run_code:
  {
    \tl_set:Nn \l__cmd_signature_tl {#1}
    \exp_after:wN \cs_set_eq:NN \l__cmd_fn_tl \__cmd_grab_m_aux:Nnnnnnnnn
    \l__cmd_fn_tl \use_none:n { }
  }
\cs_new_protected:cpn { __cmd_grab_m_8:w } #1 \__cmd_run_code:
  {
    \tl_set:Nn \l__cmd_signature_tl {#1}
    \exp_after:wN \cs_set_eq:NN \l__cmd_fn_tl \__cmd_grab_m_aux:Nnnnnnnnn
    \l__cmd_fn_tl \prg_do_nothing:
  }
\cs_new_protected:cpx { __cmd_grab_m_9:w }
  {
    \exp_not:c { __cmd_grab_m_5:w }
    \exp_not:c { __cmd_grab_m_4:w }
  }
\cs_new_protected:Npn \__cmd_grab_R:w #1#2#3 \__cmd_run_code:
  { \__cmd_grab_R_aux:NNnN #1 #2 {#3} \cs_set_protected_nopar:Npn }
\cs_new_protected:Npn \__cmd_grab_R_long:w #1#2#3 \__cmd_run_code:
  { \__cmd_grab_R_aux:NNnN #1 #2 {#3} \cs_set_protected:Npn }
\cs_new_protected:Npn \__cmd_grab_R_aux:NNnN #1#2#3#4
  {
    \__cmd_grab_D_aux:NNnNN #1 #2 {#3} #4 \use_ii:nn
    \__cmd_peek_nonspace_remove:NTF #1
      { \__cmd_grab_D_call:Nw #1 }
      {
        \msg_error:nnxx { cmd } { missing-required }
          { \__cmd_environment_or_command: }
          { \token_to_str:N #1 }
        \__cmd_add_arg:o \c_novalue_tl
      }
  }
\cs_new_protected:Npn \__cmd_grab_t:w
  { \__cmd_grab_t_aux:NNw \__cmd_peek_nonspace_remove:NTF }
\cs_new_protected:Npn \__cmd_grab_t_obey_spaces:w
  { \__cmd_grab_t_aux:NNw \__cmd_peek_meaning_remove:NTF }
\cs_new_protected:Npn \__cmd_grab_t_aux:NNw #1#2#3 \__cmd_run_code:
  {
    \tl_set:Nn \l__cmd_signature_tl {#3}
    \exp_after:wN \cs_set_protected:Npn \l__cmd_fn_tl
      {
        #1 #2
          { \__cmd_add_arg:n { \BooleanTrue } }
          { \__cmd_add_arg:n { \BooleanFalse } }
      }
    \l__cmd_fn_tl
  }
\tl_new:N \l__cmd_v_arg_tl
\cs_new_protected:Npn \__cmd_grab_v:w
  {
    \bool_set_false:N \l__cmd_long_bool
    \__cmd_grab_v_aux:w
  }
\cs_new_protected:Npn \__cmd_grab_v_long:w
  {
    \bool_set_true:N \l__cmd_long_bool
    \__cmd_grab_v_aux:w
  }
\cs_new_protected:Npn \__cmd_grab_v_aux:w #1 \__cmd_run_code:
  {
    \tl_set:Nn \l__cmd_signature_tl {#1}
    \group_begin:
      \tex_escapechar:D = 92 \scan_stop:
      \tex_endlinechar:D = `\^^M \scan_stop:
      \tl_clear:N \l__cmd_v_arg_tl
      \peek_remove_spaces:n
        {
          \peek_meaning_remove:NTF \c_group_begin_token
            {
              \group_align_safe_end:
              \__cmd_grab_v_bgroup:
            }
            {
              \peek_N_type:TF
                { \__cmd_grab_v_aux_test:N }
                { \__cmd_grab_v_aux_abort:n { } }
            }
        }
  }
\cs_new_protected:Npn \__cmd_grab_v_group_end:
  {
      \exp_args:NNNo
    \group_end:
    \tl_set:Nn \l__cmd_v_arg_tl { \l__cmd_v_arg_tl }
  }
\cs_new_protected:Npn \__cmd_grab_v_aux_test:N #1
  {
    \__cmd_grab_v_token_if_char:NTF #1
      {
        \__cmd_grab_v_aux_put:N #1
        \__cmd_grab_v_aux_catcodes:
        \__cmd_grab_v_aux_loop:N #1
      }
      { \__cmd_grab_v_aux_abort:n {#1} #1 }
  }
\cs_new_protected:Npn \__cmd_grab_v_aux_loop:N #1
  {
    \peek_N_type:TF
      { \__cmd_grab_v_aux_loop:NN #1 }
      { \__cmd_grab_v_aux_abort:n { } }
  }
\cs_new_protected:Npn \__cmd_grab_v_aux_loop:NN #1#2
  {
    \__cmd_grab_v_token_if_char:NTF #2
      {
        \token_if_eq_charcode:NNTF #1 #2
          { \__cmd_grab_v_aux_loop_end: }
          {
            \__cmd_grab_v_aux_put:N #2
            \__cmd_grab_v_aux_loop:N #1
          }
      }
      { \__cmd_grab_v_aux_abort:n {#2} #2 }
  }
\cs_new_protected:Npn \__cmd_grab_v_aux_loop_end:
  {
    \__cmd_grab_v_group_end:
    \__cmd_add_arg:x { \tl_tail:N \l__cmd_v_arg_tl }
  }
\int_new:N \l__cmd_v_nesting_int
\cs_new_protected:Npx \__cmd_grab_v_bgroup:
  {
    \exp_not:N \__cmd_grab_v_aux_catcodes:
    \exp_not:n { \int_set:Nn \l__cmd_v_nesting_int { 1 } }
    \exp_not:N \__cmd_grab_v_aux_put:N \iow_char:N \{
    \exp_not:N \__cmd_grab_v_bgroup_loop:
  }
\cs_new_protected:Npn \__cmd_grab_v_bgroup_loop:
  {
    \peek_N_type:TF
      { \__cmd_grab_v_bgroup_loop:N }
      { \__cmd_grab_v_aux_abort:n { } }
  }
\cs_new_protected:Npn \__cmd_grab_v_bgroup_loop:N #1
  {
    \__cmd_grab_v_token_if_char:NTF #1
      {
        \token_if_eq_charcode:NNTF \c_group_end_token #1
          {
            \int_decr:N \l__cmd_v_nesting_int
            \int_compare:nNnTF \l__cmd_v_nesting_int > 0
              {
                \__cmd_grab_v_aux_put:N #1
                \__cmd_grab_v_bgroup_loop:
              }
              { \__cmd_grab_v_aux_loop_end: }
          }
          {
            \token_if_eq_charcode:NNT \c_group_begin_token #1
              { \int_incr:N \l__cmd_v_nesting_int }
            \__cmd_grab_v_aux_put:N #1
            \__cmd_grab_v_bgroup_loop:
          }
      }
      { \__cmd_grab_v_aux_abort:n {#1} #1 }
  }
\cs_new_protected:Npn \__cmd_grab_v_aux_catcodes:
  {
    \cs_set_eq:NN \do \char_set_catcode_other:N
    \dospecials
    \bool_if:NTF \l__cmd_long_bool
      { \char_set_catcode_other:n { \tex_endlinechar:D } }
      { \char_set_catcode_parameter:n { \tex_endlinechar:D } }
  }
\cs_new_protected:Npn \__cmd_grab_v_aux_abort:n #1
  {
    \__cmd_grab_v_group_end:
    \exp_after:wN \exp_after:wN \exp_after:wN
      \peek_meaning_remove:NTF \char_generate:nn { \tex_endlinechar:D } { 6 }
      {
        \msg_error:nnxxx { cmd } { verbatim-nl }
          { \__cmd_environment_or_command: }
          { \tl_to_str:N \l__cmd_v_arg_tl }
          { \tl_to_str:n {#1} }
        \__cmd_add_arg:o \c_novalue_tl
      }
      {
        \msg_error:nnxxx { cmd } { verbatim-tokenized }
          { \__cmd_environment_or_command: }
          { \tl_to_str:N \l__cmd_v_arg_tl }
          { \tl_to_str:n {#1} }
        \__cmd_add_arg:o \c_novalue_tl
      }
  }
\cs_new_protected:Npn \__cmd_grab_v_aux_put:N #1
  {
    \tl_put_right:Nx \l__cmd_v_arg_tl
      {
        \token_if_active:NTF #1
          { \exp_not:N #1 }
          {
            \int_compare:nNnTF {`#1} = \tex_endlinechar:D
              { \exp_not:N \obeyedline }
              { \token_to_str:N #1 }
          }
      }
  }
\cs_new_protected:Npn \__cmd_grab_v_token_if_char:NTF #1
  { \str_if_eq:eeTF { } { \str_tail:n {#1} } }
\cs_new_protected:Npn \__cmd_add_arg:n #1
  {
    \tl_put_right:Nn \l__cmd_args_tl { {#1} }
    \l__cmd_signature_tl \__cmd_run_code:
  }
\cs_generate_variant:Nn \__cmd_add_arg:n { V , o , x }
\cs_new:Npn \__cmd_expandable_grab_D:w #1 \q__cmd #2#3
  { #2 { \__cmd_expandable_grab_D:NNNwNNn #1 \q__cmd #2 #3 } }
\cs_set_protected:Npn \__cmd_tmp:w #1
  {
    \cs_new:Npn \__cmd_expandable_grab_D:NNNwNNn ##1##2##3##4 \q__cmd ##5##6##7
      {
        \str_if_eq:nnTF {##2} {##7}
          {
            \str_if_eq:onTF
              { ##1 { } { } ##7 ##2 \q__cmd ##3 }
              { { } {##2} { } }
          }
          { \use_ii:nn }
          {
            ##1
              { \__cmd_expandable_grab_D:NNNwNNnnn ##1##2##3##4 \q__cmd ##5##6 }
              \q_nil { } ##2 \ERROR \q__cmd \ERROR
          }
          { ##4 {#1} \q__cmd ##5 ##6 {##7} }
      }
  }
\exp_args:No \__cmd_tmp:w { \c_novalue_tl }
\cs_new:Npn \__cmd_expandable_grab_D:NNNwNNnnn #1#2#3#4 \q__cmd #5#6#7#8#9
  {
    \exp_args:Nof \__cmd_expandable_grab_D:nnNNNwNN
      { \use_ii:nn #7 #2 }
      { \__cmd_expandable_grab_D:Nw #3 \exp_stop_f: #8 #9 }
    #1#2#3 #4 \q__cmd #5 #6
  }
\cs_new:Npn \__cmd_expandable_grab_D:Nw #1#2 \ERROR \ERROR { #2 #1 }
\cs_new:Npn \__cmd_expandable_grab_D:nnNNNwNN #1#2#3#4#5#6 \q__cmd #7#8
  {
    \exp_args:No \tl_if_empty:oTF
      { #3 { \use_none:nnn } #2 \q__cmd #5 #4 \q__cmd #5 }
      {
        \tl_if_blank:oTF { \use_none:nn #1#2 }
          { \__cmd_put_arg_expandable:ow { \use_none:nn #1#2 } }
          {
            \str_if_eq:eeTF
              { \exp_not:o { \use_none:nn #1#2 } }
              { { \exp_not:o { \use_iii:nnnn #1#2 \q_nil } } }
              { \__cmd_put_arg_expandable:ow { \use_iii:nnn #1#2 } }
              { \__cmd_put_arg_expandable:ow { \use_none:nn #1#2 } }
          }
            #6 \q__cmd #7 #8
      }
      {
        #3
          { \__cmd_expandable_grab_D:NNNwNNnnn #3#4#5#6 \q__cmd #7 #8 }
          \q_nil {#1} #2 \ERROR \q__cmd \ERROR
      }
  }
\cs_new:Npn \__cmd_expandable_grab_D_alt:w #1 \q__cmd #2#3
  { #2 { \__cmd_expandable_grab_D_alt:NNwNNn #1 \q__cmd #2 #3 } }
\cs_set_protected:Npn \__cmd_tmp:w #1
  {
    \cs_new:Npn \__cmd_expandable_grab_D_alt:NNwNNn ##1##2##3 \q__cmd ##4##5##6
      {
        \str_if_eq:nnTF {##6} {##2}
          {
            \str_if_eq:onTF
              { ##1 { } ##6 ##2 ##2 }
              { { } ##2 }
          }
          { \use_ii:nn }
          {
            ##1
              { \__cmd_expandable_grab_D_alt:NNwn ##4 ##5 ##3 \q__cmd }
              ##6 \ERROR
          }
          { ##3 {#1} \q__cmd ##4 ##5 {##6} }
      }
  }
\exp_args:No \__cmd_tmp:w { \c_novalue_tl }
\cs_new:Npn \__cmd_expandable_grab_D_alt:NNwn #1#2#3 \q__cmd #4
  {
    \tl_if_blank:oTF { \use_none:n #4 }
      { \__cmd_put_arg_expandable:ow { \use_none:n #4 } }
      {
        \str_if_eq:eeTF
          { \exp_not:o { \use_none:n #4 } }
          { { \exp_not:o { \use_ii:nnn #4 \q_nil } } }
          { \__cmd_put_arg_expandable:ow { \use_ii:nn #4 } }
          { \__cmd_put_arg_expandable:ow { \use_none:n #4 } }
      }
        #3 \q__cmd #1 #2
  }
\cs_new:Npn \__cmd_expandable_grab_E:w #1 \q__cmd #2#3
  { \__cmd_expandable_grab_E_aux:w #1 \q__cmd #2 #3 #3 }
\cs_new:Npn \__cmd_expandable_grab_E_long:w #1 \q__cmd #2#3
  { \__cmd_expandable_grab_E_aux:w #1 \q__cmd #2 #3 #2 }
\cs_new:Npn \__cmd_expandable_grab_E_aux:w #1 \q__cmd #2#3#4
  { #2 { \__cmd_expandable_grab_E_test:nnw #1 \q__cmd #2 #3 #4 } }
\cs_new:Npn \__cmd_expandable_grab_E_test:nnw #1#2#3 \q__cmd #4#5#6#7
  {
    \__cmd_expandable_grab_E_loop:nnnNNw {#7} { } { }
      #1 \q_nil \q_nil \q_nil \q_mark #2 \q_nil
    #3 \q__cmd #4 #5 #6
  }
\cs_new:Npn \__cmd_expandable_grab_E_loop:nnnNNw
    #1#2#3#4#5#6 \q_nil #7 \q_mark #8
  {
    \quark_if_nil:NTF #4
      { \__cmd_expandable_grab_E_end:nnw {#1} {#3} }
      {
        \tl_if_novalue:nTF {#8}
          { \str_if_eq:onTF { #4 { } #1 #5 } {#5} }
          { \use_ii:nn }
            { \__cmd_expandable_grab_E_find:w { #2 #4 #5 #6 } {#3} ~ }
            {
              \__cmd_expandable_grab_E_loop:nnnNNw
                {#1} { #2 #4 #5 } { #3 {#8} }
                #6 \q_nil #7 \q_mark
            }
      }
  }
\cs_new:Npn \__cmd_expandable_grab_E_find:w #1 \q__cmd #2#3#4
  { #4 { \__cmd_expandable_grab_E_find:nnw #1 \q__cmd #2 #3 #4 } }
\cs_new:Npn \__cmd_expandable_grab_E_find:nnw #1#2#3 \q_nil #4 \q__cmd #5#6#7#8
  { \__cmd_expandable_grab_E_aux:w {#1} { #2 {#8} #3 } #4 \q__cmd #5 #6 #7 }
\cs_new:Npn \__cmd_expandable_grab_E_end:nnw #1#2#3 \q__cmd #4#5#6
  { #3 #2 \q__cmd #4 #5 {#1} }
\cs_new:Npn \__cmd_expandable_grab_m:w #1 \q__cmd #2#3
  { #3 { \__cmd_expandable_grab_m_aux:wNn #1 \q__cmd #2 #3 } }
\cs_new:Npn \__cmd_expandable_grab_m_long:w #1 \q__cmd #2#3
  { #2 { \__cmd_expandable_grab_m_aux:wNn #1 \q__cmd #2 #3 } }
\cs_new:Npn \__cmd_expandable_grab_m_aux:wNn #1 \q__cmd #2#3#4
  { #1 {#4} \q__cmd #2 #3 }
\cs_new:Npn \__cmd_expandable_grab_R:w #1 \q__cmd #2#3
  { #2 { \__cmd_expandable_grab_R_aux:NNNwNNn #1 \q__cmd #2#3 } }
\cs_set_protected:Npn \__cmd_tmp:w #1
  {
    \cs_new:Npn \__cmd_expandable_grab_R_aux:NNNwNNn ##1##2##3##4 \q__cmd ##5##6##7
      {
        \str_if_eq:nnTF {##7} {##2}
          {
            \str_if_eq:onTF
              { ##1 { } { } ##7 ##2 \q__cmd ##3 }
              { { } {##2} { } }
          }
          { \use_ii:nn }
          {
            ##1
              { \__cmd_expandable_grab_D:NNNwNNnnn ##1##2##3##4 \q__cmd ##5##6 }
              \q_nil { } ##2 \ERROR \q__cmd \ERROR
          }
          {
            \msg_expandable_error:nnff { cmd } { missing-required }
              { \exp_args:Nf \tl_trim_spaces:n { \token_to_str:N ##5 } }
              { \tl_to_str:n {##2} }
            ##4 {#1} \q__cmd ##5 ##6 {##7}
          }
      }
  }
\exp_args:No \__cmd_tmp:w { \c_novalue_tl }
\cs_new:Npn \__cmd_expandable_grab_R_alt:w #1 \q__cmd #2#3
  { #2 { \__cmd_expandable_grab_R_alt_aux:NNwNNn #1 \q__cmd #2#3 } }
\cs_set_protected:Npn \__cmd_tmp:w #1
  {
    \cs_new:Npn \__cmd_expandable_grab_R_alt_aux:NNwNNn ##1##2##3 \q__cmd ##4##5##6
      {
        \str_if_eq:nnTF {##6} {##2}
          {
            \str_if_eq:onTF
              { ##1 { } ##6 ##2 ##2 }
              { { } ##2 }
          }
          { \use_ii:nn }
          {
            ##1
              { \__cmd_expandable_grab_D_alt:NNwn ##4 ##5 ##3 \q__cmd }
              ##6 \ERROR
          }
          {
            \msg_expandable_error:nnff { cmd } { missing-required }
              { \exp_args:Nf \tl_trim_spaces:n { \token_to_str:N ##4 } }
              { \tl_to_str:n {##2} }
            ##3 {#1} \q__cmd ##4 ##5 {##6}
          }
      }
  }
\exp_args:No \__cmd_tmp:w { \c_novalue_tl }
\cs_new:Npn \__cmd_expandable_grab_t:w #1 \q__cmd #2#3
  { #2 { \__cmd_expandable_grab_t_aux:NNwn #1 \q__cmd #2 #3 } }
\cs_new:Npn \__cmd_expandable_grab_t_aux:NNwn #1#2#3 \q__cmd #4#5#6
  {
    \str_if_eq:onTF { #1 { } #6 #2 } {#2}
      { #3 { \BooleanTrue } \q__cmd #4 #5 }
      { #3 { \BooleanFalse } \q__cmd #4 #5 {#6} }
  }
\cs_new:Npn \__cmd_put_arg_expandable:nw #1#2 \q__cmd { #2 {#1} \q__cmd }
\cs_generate_variant:Nn \__cmd_put_arg_expandable:nw { o }
\cs_new_protected:Npn \__cmd_bool_reverse:N #1
  {
    \bool_if:NTF #1
      { \tl_set:Nn \ProcessedArgument { \c_false_bool } }
      { \tl_set:Nn \ProcessedArgument { \c_true_bool } }
  }
\seq_new:N \l__cmd_split_list_seq
\tl_new:N \l__cmd_split_list_tl
\cs_new_protected:Npn \__cmd_split_list:nn #1#2
  {
    \tl_if_single:nTF {#1}
      {
        \token_if_cs:NTF #1
          { \__cmd_split_list_multi:nn {#1} {#2} }
          { \__cmd_split_list_single:Nn #1 {#2} }
      }
      { \__cmd_split_list_multi:nn {#1} {#2} }
  }
\cs_new_protected:Npn \__cmd_split_list_multi:nn #1#2
  {
    \seq_set_split:Nnn \l__cmd_split_list_seq {#1} {#2}
    \tl_clear:N \ProcessedArgument
    \seq_map_inline:Nn \l__cmd_split_list_seq
      { \tl_put_right:Nn \ProcessedArgument { {##1} } }
  }
\cs_generate_variant:Nn \__cmd_split_list_multi:nn { nV }
\group_begin:
\char_set_catcode_active:N \^^@
\cs_new_protected:Npn \__cmd_split_list_single:Nn #1#2
  {
    \tl_set:Nn \l__cmd_split_list_tl {#2}
    \group_begin:
    \char_set_lccode:nn { `\^^@ } { `#1 }
    \tex_lowercase:D
      {
        \group_end:
        \tl_replace_all:Nnn \l__cmd_split_list_tl { ^^@ }
      }   {#1}
     \__cmd_split_list_multi:nV {#1} \l__cmd_split_list_tl
   }
\group_end:
\cs_new_protected:Npn \__cmd_split_argument:nnn #1#2#3
  {
    \__cmd_split_list:nn {#2} {#3}
    \exp_args:Nf \__cmd_split_argument_aux:nnnn
      { \tl_count:N \ProcessedArgument }
      {#1} {#2} {#3}
  }
\cs_new_protected:Npn \__cmd_split_argument_aux:nnnn #1#2#3#4
  {
    \int_compare:nNnF {#1} = { #2 + 1 }
      {
        \int_compare:nNnTF {#1} > { #2 + 1 }
          {
            \tl_set:Nx \ProcessedArgument
              {
                \exp_last_unbraced:NnNo
                  \__cmd_split_argument_aux:n
                  { #2 + 1 }
                  \use_none_delimit_by_q_stop:w
                  \ProcessedArgument
                  \q_stop
              }
            \msg_error:nnxxx { cmd } { arg-split }
              { \tl_to_str:n {#3} } { \int_eval:n { #2 + 1 } }
              { \tl_to_str:n {#4} }
          }
          {
            \tl_put_right:Nx \ProcessedArgument
              {
                \prg_replicate:nn { #2 + 1 - (#1) }
                  { { \exp_not:V \c_novalue_tl } }
              }
          }
      }
  }
\cs_new:Npn \__cmd_split_argument_aux:n #1
  { \prg_replicate:nn {#1} { \__cmd_split_argument_aux:wn } }
\cs_new:Npn \__cmd_split_argument_aux:wn #1 \use_none_delimit_by_q_stop:w #2
  {
    \exp_not:n { {#2} }
    #1
    \use_none_delimit_by_q_stop:w
  }
\cs_new_protected:Npn \__cmd_trim_spaces:n #1
  { \tl_set:Nx \ProcessedArgument { \tl_trim_spaces:n {#1} } }
\cs_new_protected:Npn \__cmd_arg_to_keyvalue:nn #1#2
  {
    \tl_trim_spaces_apply:nN {#2} \__cmd_arg_to_keyvalue_braces:nnn
      {#1} {#2}
  }
\cs_new_protected:Npn \__cmd_arg_to_keyvalue_braces:nnn #1#2#3
  {
    \tl_if_head_is_group:nT {#1}
      {
        \tl_if_blank:oT { \use_none:n #1 }
          {
            \tl_set:Nx \ProcessedArgument { #2 = { \exp_not:n #1 } }
            \use_none:nnnn
          }
      }
    \__cmd_arg_to_keyvalue_auxi:nnn {#1} {#2} {#3}
  }
\cs_new:Npn \__cmd_arg_to_keyvalue_auxi:nnn #1
  {
    \tl_if_head_is_N_type:nTF {#1}
      { \__cmd_split_N_head_apply:Nn \__cmd_arg_to_keyvalue_auxii:Nnnn {#1} }
      { \__cmd_arg_to_keyvalue_auxv:nn }
  }
\cs_new:Npn \__cmd_arg_to_keyvalue_auxii:Nnnn #1#2
  {
    \str_if_eq:eeTF { \exp_not:n {#1} } { = }
      { \tl_trim_spaces_apply:nN {#2} \__cmd_arg_to_keyvalue_auxiii:nnn }
      { \__cmd_arg_to_keyvalue_auxv:nn }
  }
\cs_new:Npn \__cmd_arg_to_keyvalue_auxiii:nnn #1
  {
    \tl_if_head_is_N_type:nTF {#1}
      { \__cmd_split_N_head_apply:Nn \__cmd_arg_to_keyvalue_auxiv:Nnnn {#1} }
      { \__cmd_arg_to_keyvalue_auxv:nn }
  }
\cs_new:Npn \__cmd_arg_to_keyvalue_auxiv:Nnnn #1#2
  {
    \str_if_eq:eeTF { \exp_not:n {#1} } { , }
      { \tl_set:Nn \ProcessedArgument {#2} \use_none:nn }
      { \__cmd_arg_to_keyvalue_auxv:nn }
  }
\cs_new_protected:Npn \__cmd_arg_to_keyvalue_auxv:nn #1#2
  {
    \__cmd_arg_to_keyvalue_loop:w #2
      \q__cmd_recursion_tail \q__cmd_recursion_stop {#1} {#2}
  }
\cs_new_protected:Npn \__cmd_arg_to_keyvalue_loop:w #1 \q__cmd_recursion_stop
  {
    \tl_if_head_is_N_type:nTF {#1}
      { \__cmd_arg_to_keyvalue_loop_N_type:N }
      {
        \tl_if_head_is_group:nTF {#1}
          { \__cmd_arg_to_keyvalue_loop_group:n }
          { \__cmd_arg_to_keyvalue_loop_space:w }
      }
        #1 \q__cmd_recursion_stop
  }
\cs_new_protected:Npn \__cmd_arg_to_keyvalue_loop_group:n #1
  { \__cmd_arg_to_keyvalue_loop:w }
\use:n { \cs_new_protected:Npn \__cmd_arg_to_keyvalue_loop_space:w } ~
  { \__cmd_arg_to_keyvalue_loop:w }
\cs_new_protected:Npn \__cmd_arg_to_keyvalue_loop_N_type:N #1
  {
    \__cmd_if_recursion_tail_stop_do:Nn #1
      { \__cmd_arg_to_keyvalue_set_default:nn }
    \str_if_eq:nnTF {#1} { = }
      {
        \__cmd_use_i_delimit_by_q_recursion_stop:nw
          { \__cmd_arg_to_keyvalue_set_keyvalue:nn }
      }
      {
        \bool_lazy_or:nnTF
            { \token_if_math_toggle_p:N #1 }
            { \str_if_eq_p:nn {#1} { \( } }
          { \__cmd_arg_to_keyvalue_math:w }
          { \__cmd_arg_to_keyvalue_loop:w }
      }
  }
\cs_new_protected:Npn \__cmd_arg_to_keyvalue_math:w #1 \q__cmd_recursion_stop
  {
    \tl_if_head_is_N_type:nTF {#1}
      { \__cmd_arg_to_keyvalue_math_N_type:N }
      {
        \tl_if_head_is_group:nTF {#1}
          { \__cmd_arg_to_keyvalue_math_group:n }
          { \__cmd_arg_to_keyvalue_math_space:w }
      }
        #1 \q__cmd_recursion_stop
  }
\cs_new_protected:Npn \__cmd_arg_to_keyvalue_math_N_type:N #1
  {
    \__cmd_if_recursion_tail_stop_do:Nn #1
      { \__cmd_arg_to_keyvalue_set_default:nn }
    \bool_lazy_or:nnTF
        { \token_if_math_toggle_p:N #1 }
        { \str_if_eq_p:nn {#1} { \) } }
      { \__cmd_arg_to_keyvalue_loop:w }
      { \__cmd_arg_to_keyvalue_math:w }
  }
\cs_new_protected:Npn \__cmd_arg_to_keyvalue_math_group:n #1
  { \__cmd_arg_to_keyvalue_math:w }
\use:n { \cs_new_protected:Npn \__cmd_arg_to_keyvalue_math_space:w } ~
  { \__cmd_arg_to_keyvalue_math:w }
\cs_new_protected:Npn \__cmd_arg_to_keyvalue_set_default:nn #1#2
  { \tl_set:Nn \ProcessedArgument { #1 = {#2} } }
\cs_new_protected:Npn \__cmd_arg_to_keyvalue_set_keyvalue:nn #1#2
  { \tl_set:Nn \ProcessedArgument {#2} }
\cs_new:Npn \__cmd_split_N_head_apply:Nn #1#2
  { \exp:w \if_false: { \fi: \__cmd_split_N_head_apply_aux:NNw #1#2 } }
\cs_new:Npn \__cmd_split_N_head_apply_aux:NNw #1#2
  {
    \exp_after:wN \exp_end:
    \exp_after:wN #1 \exp_after:wN #2 \exp_after:wN { \if_false: } \fi:
  }

\cs_new_protected:Npn \__cmd_check_definable:nNT #1
  { \tl_trim_spaces_apply:nN {#1} \__cmd_check_definable_aux:nN }
\group_begin:
  \char_set_catcode_active:n { `? }
  \cs_new_protected:Npn \__cmd_check_definable_aux:nN #1#2
    {
      \group_begin:
      \tl_if_single_token:nTF {#1}
        {
          \int_set:Nn \tex_escapechar:D { 92 }
          \exp_args:Nx \tl_if_empty:nTF
            { \exp_args:No \str_tail:n { \token_to_str:N #1 } }
            {
              \exp_args:Nx \char_set_lccode:nn
                { ` \str_head:n {#1} } { `? }
              \tex_lowercase:D { \tl_if_eq:nnTF {#1} } { ? }
                { \group_end: \use_iii:nnn }
                { \group_end: \use_i:nnn }
            }
            { \group_end: \use_iii:nnn }
        }
        { \group_end: \use_ii:nnn }
      {
        \msg_error:nnxx { cmd } { not-definable }
          { \tl_to_str:n {#1} } { \token_to_str:N #2 }
      }
      {
        \msg_error:nnxx { cmd } { not-one-token }
          { \tl_to_str:n {#1} } { \token_to_str:N #2 }
      }
    }
\group_end:
\cs_new_protected:Npn \__cmd_token_if_cs:NTF #1
  {
    \group_begin:
      \int_set:Nn \tex_escapechar:D { 92 }
      \exp_args:Nx \tl_if_empty:nTF
          { \exp_args:No \str_tail:n { \token_to_str:N #1 } }
        { \group_end: \use_ii:nn }
        { \group_end: \use_i:nn }
  }
\cs_new:Npn \__cmd_tl_mapthread_function:NNN #1#2#3
  {
    \exp_after:wN \exp_after:wN
    \exp_after:wN \__cmd_tl_mapthread_loop:w
    \exp_after:wN \exp_after:wN
    \exp_after:wN #3
    \exp_after:wN #1
    \exp_after:wN \q_recursion_tail
    \exp_after:wN \q_mark
    #2
    \q_recursion_tail
    \q_recursion_stop
  }
\cs_new:Npn \__cmd_tl_mapthread_function:nnN #1#2#3
  {
    \__cmd_tl_mapthread_loop:w #3
      #1 \q_recursion_tail \q_mark
      #2 \q_recursion_tail \q_recursion_stop
  }
\cs_new:Npn \__cmd_tl_mapthread_loop:w #1#2#3 \q_mark #4
  {
    \quark_if_recursion_tail_stop:n {#2}
    \quark_if_recursion_tail_stop:n {#4}
    #1 {#2} {#4}
    \__cmd_tl_mapthread_loop:w #1#3 \q_mark
  }
\cs_new_protected:Npn \__cmd_cmd_type_cases:NnnnnnF #1 #2 #3 #4 #5 #6 #7
  {
    \exp_args:Ne \str_case_e:nnF
      {
        \exp_args:Nf \tl_if_empty:nT { \__kernel_cs_parameter_spec:N #1 }
          { \exp_not:N \exp_not:n { \exp_not:e { \tl_head:N #1 } } }
      }
      {
        { \exp_not:N \__cmd_start:nNNnnn } {#2}
        { \exp_not:N \__cmd_start_expandable:nNNNNn } {#3}
        { \exp_not:N \__cmd_start_optimized: } {#4}
        { \exp_not:N \__cmd_start_env:nnnnn } {#5}
        {
          \exp_after:wN \exp_not:N
            \cs:w environment~
              \exp_last_unbraced:Ne \use_none:nnn
                { \cs_to_str:N #1 } ~end~aux \cs_end:
        } {#6}
      }
      {#7}
  }
\cs_new_protected:Npn \__kernel_cmd_if_xparse:NTF #1
  {
    \__cmd_cmd_type_cases:NnnnnnF #1
      { } { } { } { } { } { \use_iii:nnn }
    \use_i:nn
  }
\cs_new_protected:Npn \__cmd_peek_nonspace:NTF
  { \__cmd_peek_nonspace_aux:nNNTF { } \__cmd_peek_meaning:NTF }
\cs_new_protected:Npn \__cmd_peek_nonspace_remove:NTF
  { \__cmd_peek_nonspace_aux:nNNTF { } \__cmd_peek_meaning_remove:NTF }
\cs_new_protected:Npn \__cmd_peek_nonspace_aux:nNNTF #1#2#3#4#5
  {
    \peek_meaning_remove:NTF \c_space_token
      { \__cmd_peek_nonspace_aux:nNNTF { #1 ~ } #2 #3 {#4} {#5} }
      { #2 #3 { #4 } { #5 #1 } }
  }
\cs_new_protected:Npn \__cmd_peek_meaning:NTF
  { \__cmd_peek_meaning_aux:NNTF \c_false_bool }
\cs_new_protected:Npn \__cmd_peek_meaning_remove:NTF
  { \__cmd_peek_meaning_aux:NNTF \c_true_bool }
\cs_new_protected:Npn \__cmd_peek_meaning_aux:NNTF #1#2#3#4
  {
    \tl_set:Nn \l__cmd_tmpa_tl {#3}
    \tl_set:Nn \l__cmd_tmpb_tl {#4}
    \peek_meaning:NTF #2
      {
        \token_if_eq_meaning:NNTF #2 \c_group_begin_token
          { \__cmd_peek_true_remove:Nw #1 }
          {
            \__cmd_token_if_cs:NTF #2
              { \__cmd_peek_cs_check_equal:NNN #1 #2 }
              { \__cmd_peek_true_remove:Nw #1 }
          }
      }
      { \l__cmd_tmpb_tl }
  }
\cs_new_protected:Npn \__cmd_peek_cs_check_equal:NNN #1#2#3
  {
    \str_if_eq:nnTF {#2} {#3}
      { \__cmd_peek_true_remove:Nw #1 }
      { \l__cmd_tmpb_tl }
    #3
  }
\cs_new_protected:Npn \__cmd_peek_true_remove:Nw #1
  {
    \bool_if:NTF #1
      {
        \tex_afterassignment:D \l__cmd_tmpa_tl
        \cs_set_eq:NN \__cmd_tmp:w
      }
      { \l__cmd_tmpa_tl }
  }
\tl_const:Nn \c__cmd_ignore_def_tl
  { \\ \\ LaTeX~will~ignore~this~entire~definition. }
\cs_new:Npn \__cmd_environment_or_command:
  {
    \bool_if:NTF \l__cmd_environment_bool
      { environment ~ ' \l__cmd_environment_str ' }
      {
        command ~
          ' \c_backslash_str \tl_to_str:N \l__cmd_function_tl '
      }
  }
\msg_new:nnnn { cmd } { arg-after-body }
  { Argument~type~'b'~must~be~last~in~#1. }
  {
    The~'b'~argument~type~must~come~last~but~it~is~followed~
    by~'#2'~in~the~argument~specification.~This~is~not~allowed.
    \c__cmd_ignore_def_tl
  }
\msg_new:nnnn { cmd } { bad-arg-spec }
  { Bad~argument~specification~'#2'~for~#1. }
  {
    The~argument~specification~provided~is~not~valid:~
    one~or~more~mandatory~parts~are~missing.
    \c__cmd_ignore_def_tl
  }
\msg_new:nnnn { cmd } { already-defined }
  { Command~'#1'~already~defined. }
  {
    You~have~used~#2~
    with~a~command~that~already~has~a~definition. \\ \\
    The~existing~definition~of~'#1'~will~not~be~altered.
  }
\msg_new:nnnn { cmd } { undefined }
  { Command ~'#1'~undefined. }
  {
    You~have~used~#2~
    with~a~command~that~was~never~defined.
    \c__cmd_ignore_def_tl
  }
\msg_new:nnnn { cmd } { env-already-defined }
  { Environment~'#1'~already~defined. }
  {
    You~have~used~\NewDocumentEnvironment
    with~an~environment~that~already~has~a~definition. \\ \\
    The~existing~definition~of~'#1'~will~not~be~altered.
  }
\msg_new:nnnn { cmd } { env-end-already-defined }
  { End~of~environment~'#1'~already~defined. }
  {
    You~have~used~\NewDocumentEnvironment
    with~an~environment~that~already~has~a~definition~for~'end#1'. \\ \\
    The~existing~definition~of~'#1'~will~not~be~altered.
  }
\msg_new:nnnn { cmd } { env-undefined }
  { Environment~'#1'~undefined. }
  {
    You~have~used~\RenewDocumentEnvironment
    with~an~environment~that~was~never~defined.
    \c__cmd_ignore_def_tl
  }
\msg_new:nnnn { cmd } { expandable-ending-optional }
  { Bad~argument~specification~'#2'~for~#1. }
  {
    Expandable~commands~must~have~a~final~mandatory~argument~
    (or~no~arguments~at~all).~You~cannot~have~a~terminal~optional~
    argument~with~expandable~commands.
  }
\msg_new:nnnn { cmd } { long-short-mix }
  { Invalid~argument~prefix~'+'~in~command~'#1'. }
  {
    The~arguments~for~an~expandable~command~must~not~involve~short~
    arguments~after~long~arguments.~You~have~tried~to~mix~the~two~types~
    when~defining~'#1'.
  }
\msg_new:nnnn { cmd } { invalid-command-arg }
  { Invalid~argument~type~'#2'~in~#1. }
  {
    The~letter~'#2'~can~only~be~used~in~environment~argument~
    specifications,~but~not~for~commands.
    \\ \\
    LaTeX~will~ignore~the~entire~definition.
  }
\msg_new:nnnn { cmd } { invalid-expandable-arg }
  { Invalid~argument~type~'#2'~in~#1. }
  {
    The~letter~'#2'~specifies~an~argument~type~which~cannot~be~used~
    in~an~expandable~command.
    \c__cmd_ignore_def_tl
  }
\msg_new:nnnn { cmd } { invalid-after-optional-expandably }
  { Argument~'#2'~invalid~after~optional~arg~in~#1. }
  {
    The~letter~'#2'~specifies~an~argument~type~which~cannot~be~used~
    in~an~expandable~command~after~an~optional~argument.
    \c__cmd_ignore_def_tl
  }
\msg_new:nnnn { cmd } { invalid-bang }
  { Invalid~argument~prefix~'!'~in~#1. }
  {
    The~prefix~'!'~is~only~allowed~for~trailing~optional~arguments.~
    You~tried~to~apply~it~to~#2.
    \c__cmd_ignore_def_tl
  }
\msg_new:nnnn { cmd } { not-definable }
  { First~argument~of~'#2'~must~be~a~command. }
  {
    The~first~argument~of~'#2'~should~be~the~document~command~that~will~
    be~defined.~The~provided~argument~'#1'~is~a~character.~Perhaps~a~
    backslash~is~missing?
    \c__cmd_ignore_def_tl
  }
\msg_new:nnnn { cmd } { not-one-token }
  { First~argument~of~'#2'~must~be~a~command. }
  {
    The~first~argument~of~'#2'~should~be~the~document~command~that~will~
    be~defined.~The~provided~argument~'#1'~contains~more~than~one~
    token.~Perhaps~a~backslash~is~missing?
    \c__cmd_ignore_def_tl
  }
\msg_new:nnnn { cmd } { not-single-token }
  { Argument~delimiter~'#2'~invalid~in~#1. }
  {
    The~argument~specification~contains~
    \tl_if_empty:nTF{#2}{nothing}{'#2'}~
    in~a~place~
    where~a~single~token~is~required.
    \c__cmd_ignore_def_tl
  }
\msg_new:nnnn { cmd } { forbidden-group-token }
  { Argument~delimiter~'#2'~invalid~in~#1. }
  {
    The~argument~specification~contains~the~implicit~
    #3-group~token~'#2'~which~is~not~allowed~as~an~argument~delimiter.
    \c__cmd_ignore_def_tl
  }
\msg_new:nnnn { cmd } { processor-in-expandable }
  { Invalid~argument~prefix~'>'~in~command~'#1'. }
  {
    The~argument~specification~for~'#1'~contains~the~processor~function~'>{#2}'.~
    This~is~only~supported~for~robust~commands,~but~not~for~expandable~ones.
    \c__cmd_ignore_def_tl
  }
\msg_new:nnnn { cmd } { keyval-in-expandable }
  { Invalid~argument~prefix~'='~in~command~'#1'. }
  {
    The~argument~specification~for~'#1'~contains~a~key--value~marker~'={#2}'.~
    This~is~only~supported~for~robust~commands,~but~not~for~expandable~ones.
    \c__cmd_ignore_def_tl
  }
\msg_new:nnnn { cmd } { too-many-args }
  { Too~many~arguments~for~#1. }
  {
    The~argument~specification~'#2'~asks~for~more~than~9~arguments.~
    This~cannot~be~implemented.
    \c__cmd_ignore_def_tl
  }
\msg_new:nnnn { cmd } { two-markers }
  { Invalid~argument~prefix~'#2'~in~#1. }
  {
    The~argument~specification~provided~for~#1~has~two~'#2'~markers~applied~
    to~the~same~argument;~one~is~redundant.
  }
\msg_new:nnnn { cmd } { unknown-argument-type } % should be unkown-arg-type but dep in xparse
  { Invalid~argument~type~'#2'~in~#1. }
  {
    The~letter~'#2'~does~not~specify~a~known~argument~type.
    \c__cmd_ignore_def_tl
  }
\msg_new:nnnn { cmd } { xparse-arg-type }
  { Invalid~argument~type~'#2'~in~#1~(requires~xparse). }
  {
    The~letter~'#2'~specifies~a~known~but~deprecated~argument~type.~
    If~you~really~need~it~you~have~to~load~the~xparse~package.
    \c__cmd_ignore_def_tl
  }
\msg_new:nnn { cmd } { if-boolean }
  { Invalid~argument~{#1}~to~\iow_char:N\\IfBoolean... }
\msg_new:nnnn { cmd } { default-loop }
  { Circular~dependency~in~defaults~of~#1. }
  {
    The~default~values~of~two~or~more~arguments~of~the~#1~
    depend~on~each~other~in~a~way~that~cannot~be~resolved.
  }
\msg_new:nnnn { cmd } { missing-required }
  { Required~argument~missing~for~#1. }
  {
    The~#1~expects~one~of~its~arguments~to~start~with~'#2'.~
    LaTeX~did~not~find~this~argument~and~will~insert~a~default~value~
    for~further~processing.
  }
\msg_new:nnnn { cmd } { arg-split }
  { Too~many~'#1'~separators~in~argument. }
  {
    LaTeX~was~asked~to~split~the~input~'#3'~
    at~each~occurrence~of~the~separator~'#1'~into~#2~parts.~
    Too~many~separators~were~found.
  }
\msg_new:nnnn { cmd } { verbatim-nl }
  { Verbatim-like~#1~ended~by~end~of~line. }
  {
    The~verbatim~argument~of~the~#1~cannot~contain~more~than~one~line,~
    but~the~end~
    of~the~current~line~has~been~reached.~You~may~have~forgotten~the~
    closing~delimiter.
    \\ \\
    LaTeX~will~ignore~'#2'~and~you~may~get~some~additional~
    (low-level)~errors.
  }
\msg_new:nnnn { cmd } { verbatim-tokenized }
  { Verbatim-like~#1~illegal~in~argument. }
  {
    The~#1~takes~a~verbatim~argument~and~should~therefore~normally~
    not~be~used~in~arguments~of~other~commands~or~environments.~
    LaTeX~found~an~illegal~token~ \tl_if_empty:nF {#3} { (#3)~ }
    after~'#2'~and~will~drop~everything~up~to~this~point.
    \\ \\
    Expect~further~(low-level)~errors.
  }
\msg_new:nnn { cmd } { define-command }    % should be just ``define'' but dep in xparse
  {
    Defining~command~#1~
    with~sig.~'#2'~\msg_line_context:.
  }
\msg_new:nnn { cmd } { define-env }
  {
    Defining~environment~'#1'~
    with~sig.~'#2'~\msg_line_context:.
  }
\msg_new:nnn { cmd } { redefine }
  {
    Redefining~command~#1~
    with~sig.~'#2'~\msg_line_context:.
  }
\msg_new:nnn { cmd } { redefine-env }
  {
    Redefining~environment~'#1'~
    with~sig.~'#2'~\msg_line_context:.
  }
\msg_new:nnn { cmd } { optional-mandatory }
  {
    Optional~and~mandatory~argument~with~same~delimiter~'#2'.
    \\ \\
    The~mandatory~argument~specified~with~
    '\str_case:nnF{#1}{ {R/r}{r'~or~'R} }{#1}'~has~the~
    same~delimiter~'#2'~as~an~earlier~optional~argument.~
    It~will~therefore~not~be~possible~to~omit~all~the~earlier~
    optional~arguments~when~calling~this~command.
    \\ \\
    This~may~be~intentional,~but~then~it~might~be~a~mistake.
  }
\msg_new:nnn { cmd } { unsupported-let }
  {
    The~command~'#1'~was~undefined~but~not~the~associated~commands~
    '#1~code'~and/or~'#1~defaults'.~Maybe~you~tried~using~
    \iow_char:N\\let.~This~may~lead~to~an~infinite~loop.
  }
\cs_new_eq:NN \BooleanFalse \c_false_bool
\cs_new_eq:NN \BooleanTrue  \c_true_bool
\cs_new_protected:Npn \NewDocumentCommand #1#2#3
  {
    \__cmd_check_definable:nNT {#1} \NewDocumentCommand
      {
        \cs_if_exist:NTF #1
          {
            \msg_error:nnxx { cmd } { already-defined }
              { \use:nnn \token_to_str:N #1 { } }
              { \token_to_str:N \NewDocumentCommand }
          }
          { \__cmd_declare_cmd:Nnn #1 {#2} {#3} }
      }
  }
\cs_new_protected:Npn \RenewDocumentCommand #1#2#3
  {
    \__cmd_check_definable:nNT {#1} \RenewDocumentCommand
      {
        \cs_if_exist:NTF #1
          { \__cmd_declare_cmd:Nnn #1 {#2} {#3} }
          {
            \msg_error:nnxx { cmd } { undefined }
              { \use:nnn \token_to_str:N #1 { } }
              { \token_to_str:N \RenewDocumentCommand }
          }
      }
  }
\cs_new_protected:Npn \ProvideDocumentCommand #1#2#3
  {
    \__cmd_check_definable:nNT {#1} \ProvideDocumentCommand
      { \cs_if_exist:NF #1 { \__cmd_declare_cmd:Nnn #1 {#2} {#3} } }
 }
\cs_new_protected:Npn \DeclareDocumentCommand #1#2#3
  {
    \__cmd_check_definable:nNT {#1} \DeclareDocumentCommand
      { \__cmd_declare_cmd:Nnn #1 {#2} {#3} }
  }
\cs_new_protected:Npn \NewDocumentEnvironment #1#2#3#4
  {
    \__cmd_new_env:ennn { \tl_trim_spaces:e {#1} } {#2} {#3} {#4}
  }
\cs_new_protected:Npn \RenewDocumentEnvironment #1#2#3#4
  {
    \__cmd_renew_env:ennn { \tl_trim_spaces:e {#1} } {#2} {#3} {#4}
  }
\cs_new_protected:Npn \ProvideDocumentEnvironment #1#2#3#4
  {
    \__cmd_provide_env:ennn { \tl_trim_spaces:e {#1} } {#2} {#3} {#4}
  }
\cs_new_protected:Npn \DeclareDocumentEnvironment #1#2#3#4
  {
    \__cmd_declare_env:ennn { \tl_trim_spaces:e {#1} } {#2} {#3} {#4}
  }
\cs_new_protected:Npn \__cmd_new_env:nnnn #1
  {
    \cs_if_exist:cTF {#1}
      {
        \msg_error:nnx { cmd } { env-already-defined } {#1}
        \use_none:nnn
      }
      {
        \cs_if_exist:cTF { end #1 }
          {
            \msg_error:nnx { cmd } { env-end-already-defined } {#1}
            \use_none:nnn
          }
          { \__cmd_declare_env:nnnn {#1} }
      }
  }
\cs_new_protected:Npn \__cmd_renew_env:nnnn #1
  {
    \cs_if_exist:cTF {#1}
      { \__cmd_declare_env:nnnn {#1} }
      {
        \msg_error:nnx { cmd } { env-undefined } {#1}
        \use_none:nnn
      }
  }
\cs_new_protected:Npn \__cmd_provide_env:nnnn #1
  {
    \cs_if_exist:cTF {#1}
      { \use_none:nnn }
      { \__cmd_declare_env:nnnn {#1} }
  }
\cs_generate_variant:Nn \__cmd_new_env:nnnn { e }
\cs_generate_variant:Nn \__cmd_renew_env:nnnn { e }
\cs_generate_variant:Nn \__cmd_provide_env:nnnn { e }
\cs_new_protected:Npn \NewExpandableDocumentCommand #1#2#3
  {
    \__cmd_check_definable:nNT {#1} \NewExpandableDocumentCommand
      {
        \cs_if_exist:NTF #1
          {
            \msg_error:nnxx { cmd } { already-defined }
              { \use:nnn \token_to_str:N #1 { } }
              { \token_to_str:N \NewExpandableDocumentCommand }
          }
          { \__cmd_declare_expandable_cmd:Nnn #1 {#2} {#3} }
      }
  }
\cs_new_protected:Npn \RenewExpandableDocumentCommand #1#2#3
  {
    \__cmd_check_definable:nNT {#1} \RenewExpandableDocumentCommand
      {
        \cs_if_exist:NTF #1
          { \__cmd_declare_expandable_cmd:Nnn #1 {#2} {#3} }
          {
            \msg_error:nnxx { cmd } { undefined }
              { \use:nnn \token_to_str:N #1 { } }
              { \token_to_str:N \RenewExpandableDocumentCommand }
          }
      }
  }
\cs_new_protected:Npn \ProvideExpandableDocumentCommand #1#2#3
  {
    \__cmd_check_definable:nNT {#1} \ProvideExpandableDocumentCommand
      {
        \cs_if_exist:NF #1
          { \__cmd_declare_expandable_cmd:Nnn #1 {#2} {#3} }
      }
 }
\cs_new_protected:Npn \DeclareExpandableDocumentCommand #1#2#3
  {
    \__cmd_check_definable:nNT {#1} \DeclareExpandableDocumentCommand
      { \__cmd_declare_expandable_cmd:Nnn #1 {#2} {#3} }
  }
\cs_new:Npn \IfBooleanTF #1
  {
    \tl_if_single:nF {#1}
      { \prg_break:n { \use:n } }
    \tl_if_single_token:nF #1
      { \prg_break:n { \use:n } }
    \token_if_eq_meaning:NNT #1 \c_true_bool
      { \prg_break:n { \use_ii:nnn } }
    \token_if_eq_meaning:NNT #1 \c_false_bool
      { \prg_break:n { \use_iii:nnn } }
    \prg_break:n { \use:n }
    \prg_break_point:
    {
      \msg_expandable_error:nnn { cmd } { if-boolean } {#1}
      \use_ii:nn
    }
  }
\cs_new:Npn \IfBooleanT #1#2 { \IfBooleanTF {#1} {#2} { } }
\cs_new:Npn \IfBooleanF #1 { \IfBooleanTF {#1} { } }
\cs_new_eq:NN \IfNoValueF  \tl_if_novalue:nF
\cs_new_eq:NN \IfNoValueT  \tl_if_novalue:nT
\cs_new_eq:NN \IfNoValueTF \tl_if_novalue:nTF
\cs_new:Npn \IfValueF { \tl_if_novalue:nT }
\cs_new:Npn \IfValueT { \tl_if_novalue:nF }
\cs_new:Npn \IfValueTF #1#2#3 { \tl_if_novalue:nTF {#1} {#3} {#2} }
\cs_new_eq:NN \IfBlankF  \tl_if_blank:nF
\cs_new_eq:NN \IfBlankT  \tl_if_blank:nT
\cs_new_eq:NN \IfBlankTF \tl_if_blank:nTF
\tl_new:N \ProcessedArgument
\cs_new_eq:NN \ReverseBoolean \__cmd_bool_reverse:N
\cs_new_eq:NN \SplitArgument  \__cmd_split_argument:nnn
\cs_new_eq:NN \SplitList      \__cmd_split_list:nn
\cs_new_eq:NN \TrimSpaces     \__cmd_trim_spaces:n
\cs_new_eq:NN \ProcessList \tl_map_function:nN
\ExplSyntaxOff

%%% From File: lthooks.dtx
\ExplSyntaxOn
\bool_new:N \g__hook_debug_bool
\cs_new_eq:NN \__hook_debug:n \use_none:n
\cs_new_protected:Npn \hook_debug_on:
  {
    \bool_gset_true:N \g__hook_debug_bool
    \__hook_debug_gset:
  }
\cs_new_protected:Npn \hook_debug_off:
  {
    \bool_gset_false:N \g__hook_debug_bool
    \__hook_debug_gset:
  }
\cs_new_protected:Npn \__hook_debug_gset:
  {
    \cs_gset_protected:Npx \__hook_debug:n ##1
      { \bool_if:NT \g__hook_debug_bool {##1} }
  }
\cs_new_eq:NN \__hook_str_compare:nn \__str_if_eq:nn
\bool_new:N \l__hook_tmpa_bool
\tl_new:N \l__hook_return_tl
\tl_new:N \l__hook_tmpa_tl
\tl_new:N \l__hook_tmpb_tl
\seq_new:N \g__hook_all_seq
\tl_new:N \l__hook_cur_hook_tl
\prop_new:N \l__hook_work_prop
\prop_new:N \g__hook_used_prop
\tl_new:N \g__hook_hook_curr_name_tl
\seq_new:N \g__hook_name_stack_seq
\cs_new_eq:NN \__hook_tmp:w ?
\tl_const:Nn \c__hook_empty_tl { }
\tl_const:Nn \c__hook_nine_parameters_tl { #1#2#3#4#5#6#7#8#9 }
\cs_generate_variant:Nn \tl_gremove_once:Nn { Nx }
\cs_generate_variant:Nn \tl_show:n { x }
\cs_generate_variant:Nn \tl_log:n { x }
\cs_generate_variant:Nn \tl_set:Nn { Ne }
\cs_generate_variant:Nn \cs_replacement_spec:N { c }
\cs_generate_variant:Nn \prop_put:Nnn { Nne }
\cs_generate_variant:Nn \str_count:n { e }
\scan_new:N \s__hook_mark
\cs_new:Npn \__hook_use_none_delimit_by_s_mark:w #1 \s__hook_mark { }
\cs_new:Npn \__hook_use_i_delimit_by_s_mark:nw #1 #2 \s__hook_mark {#1}
\cs_new_protected:Npn \__hook_tl_set:cn #1#2
  { \cs_set_nopar:cpx {#1} { \__kernel_exp_not:w {#2} } }
\cs_new_protected:Npn \__hook_tl_gset:Nn #1#2
  { \cs_gset_nopar:Npx #1 { \__kernel_exp_not:w {#2} } }
\cs_new_protected:Npn \__hook_tl_gset:Nx #1#2
  { \cs_gset_nopar:Npx #1 {#2} }
\cs_generate_variant:Nn \__hook_tl_gset:Nn { c, co }
\cs_generate_variant:Nn \__hook_tl_gset:Nx { c }
\cs_new_protected:Npn \__hook_tl_gput_right:Nn #1#2
  { \__hook_tl_gset:Nx #1 { \__kernel_exp_not:w \exp_after:wN { #1 #2 } } }
\cs_generate_variant:Nn \__hook_tl_gput_right:Nn { Ne, cn }
\cs_new_protected:Npn \__hook_tl_gput_left:Nn #1#2
  {
    \__hook_tl_gset:Nx #1
      { \__kernel_exp_not:w {#2} \__kernel_exp_not:w \exp_after:wN {#1} }
  }
\cs_new_eq:NN \__hook_tl_gset_eq:NN \tl_gset_eq:NN
\cs_new_protected:Npn \__hook_tl_gclear:N #1
  { \__hook_tl_gset_eq:NN #1 \c_empty_tl }
\cs_generate_variant:Nn \__hook_tl_gclear:N { c }

\cs_new_protected:Npn \hook_new:n #1
  { \__hook_normalize_hook_args:Nn \__hook_new:nn {#1} { 0 } }
\cs_new_protected:Npn \hook_new_with_args:nn #1 #2
  { \__hook_normalize_hook_args:Nn \__hook_new:nn {#1} {#2} }
\cs_new_protected:Npn \__hook_new:nn #1 #2
  {
    \__hook_if_declared:nTF {#1}
      { \msg_error:nnn { hooks } { exists } {#1} }
      {
        \tl_new:c { g__hook_#1_declared_tl }
        \cs_undefine:c { __hook~#1 }
        \cs_undefine:c { c__hook_#1_parameter_tl }
        \__hook_make_usable:nn {#1} {#2}
        \__hook_update_hook_code:n {#1}
      }
  }
\cs_new_protected:Npn \__hook_make_usable:nn #1 #2
  {
    \__hook_if_usable:nF {#1}
      {
        \seq_gput_right:Nn \g__hook_all_seq {#1}
        \__kernel_cs_parm_from_arg_count:nnF
          { \tl_const:cn { c__hook_#1_parameter_tl } } {#2}
          {
            \msg_error:nnnn { hooks } { too-many-args } {#1} {#2}
            \tl_const:cx { c__hook_#1_parameter_tl }
              { \exp_not:V \c__hook_nine_parameters_tl }
          }
        \__hook_normalise_cs_args:nn { _toplevel } {#1}
        \__hook_normalise_cs_args:nn { _next } {#1}
        \__hook_code_gset:nn {#1} { }
        \__hook_init_structure:n {#1}
        \__hook_normalise_code_pool:n {#1}
        \clist_if_exist:cF { g__hook_#1_labels_clist }
          {
            \clist_new:c { g__hook_#1_labels_clist }
            \tl_new:c { g__hook_#1_reversed_tl }
          }
        \__hook_include_legacy_code_chunk:n {#1}
      }
  }
\cs_new_protected:Npn \__hook_init_structure:n #1
  {
    \__hook_if_structure_exist:nF {#1}
      {
        \prop_new:c { g__hook_#1_code_prop }
        \__hook_toplevel_gset:nn {#1} { }
        \__hook_next_gset:nn {#1} { }
      }
  }
\cs_new_protected:Npn \hook_new_reversed:n #1
  { \__hook_normalize_hook_args:Nn \__hook_new_reversed:nn {#1} { 0 } }
\cs_new_protected:Npn \hook_new_reversed_with_args:nn #1 #2
  { \__hook_normalize_hook_args:Nn \__hook_new_reversed:nn {#1} {#2} }
\cs_new_protected:Npn \__hook_new_reversed:nn #1 #2
  {
    \__hook_if_declared:nTF {#1}
      { \msg_error:nnn { hooks } { exists } {#1} }
      {
        \__hook_new:nn {#1} {#2}
        \tl_gset:cn { g__hook_#1_reversed_tl } { - }
      }
  }
\cs_new_protected:Npn \hook_new_pair:nn #1#2
  { \__hook_normalize_hook_args:Nnn \__hook_new_pair:nnn {#1} {#2} { 0 } }
\cs_new_protected:Npn \hook_new_pair_with_args:nnn #1#2#3
  { \__hook_normalize_hook_args:Nnn \__hook_new_pair:nnn {#1} {#2} {#3} }
\cs_new_protected:Npn \__hook_new_pair:nnn #1 #2 #3
  {
    \__hook_if_declared:nTF {#1}
      { \msg_error:nnn { hooks } { exists } {#1} }
      {
        \__hook_if_declared:nTF {#2}
          { \msg_error:nnn { hooks } { exists } {#2} }
          {
            \__hook_new:nn {#1} {#3}
            \__hook_new_reversed:nn {#2} {#3}
          }
      }
  }
\cs_new_protected:Npn \__hook_include_legacy_code_chunk:n #1
  {
    \tl_if_exist:cT { @#1hook }
      {
        \tl_if_empty:cF { @#1hook }
          {
            \__hook_replacing_args_false:
            \use:e
              {
                \__hook_hook_gput_code_do:nnn {#1} { legacy }
                  { \exp_not:v { @#1hook } }
              }
            \__hook_replacing_args_reset:
            \__hook_tl_gclear:c { @#1hook }
          }
      }
  }
\cs_new_protected:Npn \hook_disable_generic:n #1
  { \__hook_normalize_hook_args:Nn \__hook_disable:n {#1} }
\cs_new_protected:Npn \__hook_disable:n #1
  {
    \tl_gclear_new:c { g__hook_#1_declared_tl }
    \cs_undefine:c { __hook~#1 }
  }
\prg_new_conditional:Npnn \__hook_if_disabled:n #1 { p, T, F, TF }
  {
    \bool_lazy_and:nnTF
        { \tl_if_exist_p:c { g__hook_#1_declared_tl } }
        { ! \cs_if_exist_p:c { __hook~#1 } }
      { \prg_return_true: }
      { \prg_return_false: }
  }
\cs_new_protected:Npn \hook_activate_generic:n #1
  { \__hook_normalize_hook_args:Nn \__hook_activate_generic:nn {#1} {   } }
\cs_new_protected:Npn \__hook_activate_generic:nn #1 #2
  {
    \__hook_if_disabled:nTF {#1}
      { \msg_warning:nnn { hooks } { activate-disabled } {#1} }
      {
        \__hook_if_declared:nF {#1}
          {
            \tl_new:c { g__hook_#1_declared_tl }
            \__hook_make_usable:nn {#1} { 0 }
            \tl_gset:cx { g__hook_#1_reversed_tl }
              { \__hook_if_generic_reversed:nT {#1} { - } }
            \__hook_update_hook_code:n {#1}
          }
      }
  }
\cs_new:Npn \__hook_parse_label_default:nN #1#2
  {
    \tl_if_novalue:nTF {#1}
      { \__hook_currname_or_default: }
      { \tl_trim_spaces_apply:nN {#1} \__hook_parse_dot_label:nN #2 }
  }
\cs_new:Npn \__hook_parse_dot_label:nN #1#2
  {
    \tl_if_empty:nTF {#1}
      {
        \bool_if:NTF #2
          { \msg_expandable_error:nn { hooks } { empty-label } }
          { \msg_expandable_error:nn { hooks } { empty-hook } }
        \__hook_currname_or_default:
      }
      {
        \str_if_eq:nnTF {#1} { . }
          { \__hook_currname_or_default: }
          { \__hook_parse_dot_label:w #1 ./ \s__hook_mark }
      }
  }
\cs_new:Npn \__hook_parse_dot_label:w #1 ./ #2 \s__hook_mark
  {
    \tl_if_empty:nTF {#1}
      { \__hook_parse_dot_label_aux:w #2 \s__hook_mark }
      {
        \tl_if_empty:nTF {#2}
          { \__hook_make_name:n {#1} }
          { \__hook_parse_dot_label_cleanup:w #1 ./ #2 \s__hook_mark }
      }
  }
\cs_new:Npn \__hook_parse_dot_label_cleanup:w #1 ./ \s__hook_mark {#1}
\cs_new:Npn \__hook_parse_dot_label_aux:w #1 ./ \s__hook_mark
  { \__hook_currname_or_default: / \__hook_make_name:n {#1} }
\cs_new:Npn \__hook_currname_or_default:
  {
    \tl_if_empty:NTF \g__hook_hook_curr_name_tl
      {
        \tl_if_empty:NTF \@currname
          {
            \msg_expandable_error:nnn { latex2e } { should-not-happen }
              { Empty~default~label. }
            \__hook_make_name:n { label-missing }
          }
          { \@currname }
      }
      { \g__hook_hook_curr_name_tl }
  }
\cs_new:Npn \__hook_make_name:n #1
  {
    \exp_after:wN \exp_after:wN \exp_after:wN \__hook_make_name:w
    \exp_after:wN \token_to_str:N \cs:w __hook~ #1 \cs_end:
  }
\exp_last_unbraced:NNNNo
\cs_new:Npn \__hook_make_name:w #1 \tl_to_str:n { __hook~ } { }
\cs_new_protected:Npn \__hook_normalize_hook_args_aux:Nn #1 #2
  {
    \group_begin:
    \use:e
      {
        \group_end:
        \exp_not:N #1 #2
      }
  }
\cs_new_protected:Npn \__hook_normalize_hook_args:Nn #1 #2
  {
    \__hook_normalize_hook_args_aux:Nn #1
      { { \__hook_parse_label_default:nN {#2} \c_false_bool } }
  }
\cs_new_protected:Npn \__hook_normalize_hook_args:Nnn #1 #2 #3
  {
    \__hook_normalize_hook_args_aux:Nn #1
      {
        { \__hook_parse_label_default:nN {#2} \c_false_bool }
        { \__hook_parse_label_default:nN {#3} \c_true_bool }
      }
  }
\cs_new_protected:Npn \__hook_normalize_hook_rule_args:Nnnnn #1 #2 #3 #4 #5
  {
    \__hook_normalize_hook_args_aux:Nn #1
      {
        { \__hook_parse_label_default:nN {#2} \c_false_bool }
        { \__hook_parse_label_default:nN {#3} \c_true_bool }
        { \tl_trim_spaces:n {#4} }
        { \__hook_parse_label_default:nN {#5} \c_true_bool }
      }
  }
\tl_gset:Nn \g__hook_hook_curr_name_tl { top-level }
\cs_new_protected:Npn \__hook_curr_name_push:n #1
  { \exp_args:Nx \__hook_curr_name_push_aux:n { \__hook_make_name:n {#1} } }
\cs_new_protected:Npn \__hook_curr_name_push_aux:n #1
  {
    \tl_if_blank:nTF {#1}
      { \msg_error:nn { hooks } { no-default-label } }
      {
        \str_if_eq:nnTF {#1} { top-level }
          {
            \msg_error:nnnnn { hooks } { set-top-level }
              { to } { PushDefaultHookLabel } {#1}
          }
          {
            \seq_gpush:NV \g__hook_name_stack_seq \g__hook_hook_curr_name_tl
            \tl_gset:Nn \g__hook_hook_curr_name_tl {#1}
          }
      }
  }
\cs_new_protected:Npn \__hook_curr_name_pop:
  {
    \seq_gpop:NNTF \g__hook_name_stack_seq \l__hook_return_tl
      { \tl_gset_eq:NN \g__hook_hook_curr_name_tl \l__hook_return_tl }
      { \msg_error:nn { hooks } { extra-pop-label } }
  }
\tl_gput_right:Nn \@kernel@after@enddocument@afterlastpage
  { \__hook_end_document_label_check: }
\cs_new_protected:Npn \__hook_end_document_label_check:
  {
    \seq_gpop:NNT \g__hook_name_stack_seq \l__hook_return_tl
      {
        \msg_error:nnx { hooks } { missing-pop-label }
          { \g__hook_hook_curr_name_tl }
        \tl_gset_eq:NN \g__hook_hook_curr_name_tl \l__hook_return_tl
        \__hook_end_document_label_check:
      }
  }
\cs_new_protected:Npn \__hook_set_default_hook_label:n #1
  {
    \seq_if_empty:NTF \g__hook_name_stack_seq
      {
        \msg_error:nnnnn { hooks } { set-top-level }
          { for } { SetDefaultHookLabel } {#1}
      }
      { \exp_args:Nx
        \__hook_set_default_label:n { \__hook_make_name:n {#1} } }
  }
\cs_new_protected:Npn \__hook_set_default_label:n #1
  {
    \str_if_eq:nnTF {#1} { top-level }
      {
        \msg_error:nnnnn { hooks } { set-top-level }
          { to } { SetDefaultHookLabel } {#1}
      }
      { \tl_gset:Nn \g__hook_hook_curr_name_tl {#1} }
  }
\cs_new_protected:Npn \hook_gput_code:nnn #1 #2 #3
  {
    \__hook_replacing_args_false:
    \__hook_normalize_hook_args:Nnn \__hook_gput_code:nnn {#1} {#2} {#3}
    \__hook_replacing_args_reset:
  }
\cs_new_protected:Npn \hook_gput_code_with_args:nnn #1 #2 #3
  {
    \__hook_replacing_args_true:
    \__hook_normalize_hook_args:Nnn \__hook_gput_code:nnn {#1} {#2} {#3}
    \__hook_replacing_args_reset:
  }
\cs_new_protected:Npn \__hook_gput_code:nnn #1 #2 #3
  {
    \__hook_chk_args_allowed:nn {#1} { AddToHook }
    \__hook_if_execute_immediately:nTF {#1}
      {
        \__hook_if_replacing_args:TF
          {
            \msg_error:nnnn { hooks } { one-time-args }
              {#1} { AddToHook }
          }
          { }
        \use:n
      }
      { \__hook_gput_code_store:nnn {#1} {#2} }
          {#3}
  }
\cs_new_protected:Npn \__hook_gput_code_store:nnn #1 #2 #3
  {
    \__hook_if_usable:nTF {#1}
      {
        \__hook_hook_gput_code_do:nnn {#1} {#2} {#3}
        \__hook_update_hook_code:n {#1}
      }
      {
        \__hook_if_disabled:nTF {#1}
          { \msg_error:nnn { hooks } { hook-disabled } {#1} }
          { \__hook_try_declaring_generic_hook:nnn {#1} {#2} {#3} }
      }
  }
\cs_new_protected:Npn \__hook_hook_gput_code_do:nnn #1 #2 #3
  {
    \__hook_debug:n{\iow_term:x{****~ Add~ to~
                      \__hook_if_usable:nF {#1} { undeclared~ }
                      hook~ #1~ (#2)
                      \on@line\space <-~ \tl_to_str:n{#3}} }
    \str_if_eq:nnTF {#2} { top-level }
      {
        \str_if_eq:eeTF { top-level } { \__hook_currname_or_default: }
          {
            \__hook_init_structure:n {#1}
            \__hook_cs_gput_right:nnn { _toplevel } {#1} {#3}
          }
          { \msg_error:nnn { hooks } { misused-top-level } {#1} }
      }
      {
        \exp_args:Nx \__hook_prop_gput_labeled_cleanup:nnn
          {
            \__hook_if_replacing_args:TF
              { \exp_not:n }
              { \__hook_double_hashes:n }
                {#3}
          }
          {#1} {#2}
      }
  }
\cs_new_protected:Npn \__hook_prop_gput_labeled_cleanup:nnn #1 #2 #3
  {
    \tl_set:Nn \l__hook_return_tl {#1}
    \__hook_if_replacing_args:TF
      {
        \__hook_if_usable:nT {#2}
          {
            \__hook_set_normalise_fn:nn {#2}
              { Invalid~code~added~\msg_line_context: }
            \__hook_normalise_fn:nn {#3} {#1}
            \prop_get:NnN \l__hook_work_prop {#3} \l__hook_return_tl
          }
      }
      { }
    \exp_args:NcV \__hook_prop_gput_labeled_do:Nnn
      { g__hook_#2_code_prop } \l__hook_return_tl {#3}
  }
\cs_new_protected:Npn \__hook_prop_gput_labeled_do:Nnn #1 #2 #3
  {
    \prop_get:NnNTF #1 {#3} \l__hook_return_tl
      { \prop_gput:Nno #1 {#3} { \l__hook_return_tl #2 } }
      { \prop_gput:Nnn #1 {#3} {#2} }
  }
\cs_new_protected:Npn \__hook_chk_args_allowed:nn #1 #2
  {
    \__hook_if_replacing_args:TF
      {
        \__hook_if_declared:nT {#1}
          { \tl_if_empty:cT { c__hook_#1_parameter_tl } { \use_ii:nn } }
        \use_none:n
          {
            \msg_error:nnnn { hooks } { without-args } {#1} {#2}
            \__hook_replacing_args_false:
          }
      }
      { }
  }
\cs_new_protected:Npn \__hook_gput_undeclared_hook:nnn #1 #2 #3
  {
    \__hook_init_structure:n {#1}
    \__hook_hook_gput_code_do:nnn {#1} {#2} {#3}
  }
\cs_new_protected:Npn \__hook_try_declaring_generic_hook:nnn #1
  {
    \__hook_try_declaring_generic_hook:wnTF #1 / / / \scan_stop: {#1}
      \__hook_gput_code:nnn
      \__hook_gput_undeclared_hook:nnn
        {#1}
  }
\cs_new_protected:Npn \__hook_try_declaring_generic_next_hook:nn #1
  {
    \__hook_try_declaring_generic_hook:wnTF #1 / / / \scan_stop: {#1}
      \__hook_gput_next_code:nn
      \__hook_gput_next_do:nn
        {#1}
  }
\prg_new_protected_conditional:Npnn
    \__hook_try_declaring_generic_hook:wn
    #1 / #2 / #3 / #4 \scan_stop: #5 { TF }
  {
    \__hook_if_generic:nTF {#5}
      {
        \__hook_if_usable:nF {#5}
          {
            \str_if_eq:nnT {#1} { cmd }
              {
                \__hook_try_put_cmd_hook:n {#5}
                \__hook_make_usable:nn {#5} { 9 }
                \use_none:nnn
              }
            \__hook_make_usable:nn {#5} { 0 }
          }
        \__hook_if_generic_reversed:nT {#5}
          { \tl_gset:cn { g__hook_#5_reversed_tl } { - } }
        \prg_return_true:
      }
      {
        \__hook_if_deprecated_generic:nTF {#5}
          {
            \__hook_deprecated_generic_warn:n {#5}
            \exp_after:wN \__hook_declare_deprecated_generic:NNn
            \exp:w % \exp_end:
          }
          { \prg_return_false: }
      }
  }
\cs_new_protected:Npn \__hook_deprecated_generic_warn:n #1
  { \__hook_deprecated_generic_warn:w #1 \s__hook_mark }
\cs_new_protected:Npn \__hook_deprecated_generic_warn:w
    #1 / #2 / #3 \s__hook_mark
  {
    \if_cs_exist:w __hook~#1/#2/#3 \cs_end: \else:
      \msg_warning:nnnnn { hooks } { generic-deprecated } {#1} {#2} {#3}
    \fi:
    \cs_gset_eq:cN { __hook~#1/#2/#3 } \scan_stop:
  }
\cs_new_protected:Npn \__hook_do_deprecated_generic:Nn #1 #2
  { \__hook_do_deprecated_generic:Nw #1 #2 \s__hook_mark }
\cs_new_protected:Npn \__hook_do_deprecated_generic:Nw #1
         #2 / #3 / #4 \s__hook_mark
  { #1 { #2 / #4 / #3 } }
\cs_new_protected:Npn \__hook_declare_deprecated_generic:NNn #1 #2 #3
  { \__hook_declare_deprecated_generic:NNw #1 #2 #3 \s__hook_mark }
\cs_new_protected:Npn \__hook_declare_deprecated_generic:NNw #1 #2
    #3 / #4 / #5 \s__hook_mark
  {
    \__hook_try_declaring_generic_hook:wnTF #3 / #5 / #4 / \scan_stop:
        { #3 / #5 / #4 }
      #1 #2 { #3 / #5 / #4 }
  }
\clist_map_inline:nn { cmd , env , file , package , class , include }
  {
    \tl_const:cn { c__hook_generic_#1/./before_tl } { + }
    \tl_const:cn { c__hook_generic_#1/./after_tl  } { - }
  }
\tl_const:cn { c__hook_generic_env/./begin_tl } { + }
\tl_const:cn { c__hook_generic_env/./end_tl   } { + }
\tl_const:cn { c__hook_generic_include/./end_tl } { - }
\tl_const:cn { c__hook_generic_include/./excluded_tl } { + }
\clist_map_inline:nn { file , package , class , include }
  {
    \tl_const:cn { c__hook_deprecated_#1/./before_tl } { }
    \tl_const:cn { c__hook_deprecated_#1/./after_tl  } { }
  }
\tl_const:cn { c__hook_deprecated_include/./end_tl } { }
\tl_const:cn { c__hook_parameter_cmd/./before_tl } { #1#2#3#4#5#6#7#8#9 }
\tl_const:cn { c__hook_parameter_cmd/./after_tl }  { #1#2#3#4#5#6#7#8#9 }
\cs_new_protected:Npn \hook_gremove_code:nn #1 #2
  { \__hook_normalize_hook_args:Nnn \__hook_gremove_code:nn {#1} {#2} }
\cs_new_protected:Npn \__hook_gremove_code:nn #1 #2
  {
    \__hook_if_structure_exist:nTF {#1}
      {
        \str_if_eq:nnTF {#2} {*}
          {
            \prop_gclear:c { g__hook_#1_code_prop }
            \__hook_toplevel_gset:nn {#1} { }
            \__hook_next_gset:nn {#1} { }
          }
          {
            \str_if_eq:nnTF {#2} { top-level }
              { \__hook_toplevel_gset:nn {#1} { } }
              {
                \prop_gpop:cnNF { g__hook_#1_code_prop }
                  {#2} \l__hook_return_tl
                  { \msg_warning:nnnn { hooks } { cannot-remove } {#1} {#2} }
              }
          }
        \__hook_if_usable:nT {#1}
          { \__hook_update_hook_code:n {#1} }
      }
      {
        \__hook_if_deprecated_generic:nTF {#1}
          {
            \__hook_deprecated_generic_warn:n {#1}
            \__hook_do_deprecated_generic:Nn
                \__hook_gremove_code:nn {#1} {#2}
          }
          { \msg_warning:nnnn { hooks } { cannot-remove } {#1} {#2} }
      }
  }
\cs_new_protected:Npn \__hook_cs_gput_right:nnn #1 #2
  {
    \if:w T
        \__hook_if_declared:nF {#2} { F }
        \tl_if_empty:cF { c__hook_#2_parameter_tl } { F }
          T
      \exp_after:wN \__hook_cs_gput_right_fast:nnn
    \else:
      \exp_after:wN \__hook_cs_gput_right_slow:nnn
    \fi:
        {#1} {#2}
  }
\cs_new_protected:Npn \__hook_cs_gput_right_fast:nnn #1 #2 #3
  { \cs_gset:cpx { __hook#1~#2 }
      { \exp_not:v { __hook#1~#2 } \exp_not:n {#3} } }
\cs_new_protected:Npn \__hook_cs_gput_right_slow:nnn #1 #2 #3
  {
    \cs_if_exist:cF { __hook#1~#2 }
      { \__hook_code_gset_aux:nnn {#1} {#2} { } }
    \__hook_code_gset_auxi:eeen
      {
        \__hook_if_declared:nTF {#2}
          { \tl_use:c { c__hook_#2_parameter_tl } }
          {
            \__hook_if_generic:nTF {#2}
              { \__hook_generic_parameter:n {#2} }
              { \c__hook_nine_parameters_tl }
          }
      }
      {
        \exp_args:NNo \exp_args:No \__hook_double_hashes:n
          {
            \cs:w __hook#1~#2 \exp_last_unbraced:Ne \cs_end:
              { \__hook_braced_cs_parameter:n { __hook#1~#2 } }
          }
      }
      {
        \__hook_if_replacing_args:TF
          { \exp_not:n }
          { \__hook_double_hashes:n }
            {#3}
      }
      { __hook#1~#2 }
  }
\cs_new_protected:Npn \__hook_code_gset_auxi:nnnn #1 #2 #3 #4
  { \cs_gset:cpn {#4} #1 { #2 #3 } }
\cs_generate_variant:Nn \__hook_code_gset_auxi:nnnn { eeen }
\cs_new_protected:Npn \__hook_code_gset:nn
  { \__hook_code_gset_aux:nnn { } }
\cs_new_protected:Npn \__hook_toplevel_gset:nn
  { \__hook_code_gset_aux:nnn { _toplevel } }
\cs_new_protected:Npn \__hook_next_gset:nn
  { \__hook_code_gset_aux:nnn { _next } }
\cs_new_protected:Npn \__hook_code_gset_aux:nnn #1 #2 #3
  {
    \cs_gset:cpn { __hook#1~#2 \exp_last_unbraced:Ne }
      { \__hook_parameter:n {#2} }
      {#3}
  }
\cs_generate_variant:Nn \__hook_code_gset:nn { ne }
\cs_new_protected:Npn \__hook_normalise_cs_args:nn #1 #2
  {
    \cs_if_exist:cT { __hook#1~#2 }
      {
        \__hook_code_gset_auxi:eeen
          { \tl_use:c { c__hook_#2_parameter_tl } }
          {
            \exp_args:NNo \exp_args:No \__hook_double_hashes:n
              {
                \cs:w __hook#1~#2 \exp_last_unbraced:Ne \cs_end:
                  { \__hook_braced_cs_parameter:n { __hook#1~#2 } }
              }
          }
          { }
          { __hook#1~#2 }
      }
  }
\cs_new_protected:Npn \__hook_normalise_code_pool:n #1
  {
    \__hook_set_normalise_fn:nn {#1} { Offending~label:~'##1' }
    \prop_clear:N \l__hook_work_prop
    \prop_map_function:cN { g__hook_#1_code_prop } \__hook_normalise_fn:nn
    \prop_gset_eq:cN { g__hook_#1_code_prop } \l__hook_work_prop
  }
\cs_new_protected:Npn \__hook_set_normalise_fn:nn #1 #2
  {
    \cs_set:Npn \__hook_tmp:w ##1##2##3##4##5##6##7##8##9 { }
    \tl_set:Ne \l__hook_tmpb_tl
      { \__hook_braced_cs_parameter:n { __hook_tmp:w } }
    \group_begin:
      \__hook_tl_set:cn { c__hook_hash_tl } { \exp_not:N \c__hook_hashes_tl }
      \use:e
        {
    \group_end:
    \tl_set:Nn \exp_not:N \l__hook_tmpb_tl { \l__hook_tmpb_tl }
        }
    \exp_last_unbraced:NNf
    \cs_set:Npn \__hook_tmp:w { \__hook_parameter:n {#1} } { }
    \tl_set:Ne \l__hook_tmpa_tl
      { \__hook_braced_cs_parameter:n { __hook_tmp:w } }
    \cs_gset_protected:Npx \__hook_normalise_fn:nn ##1 ##2
      {
        \group_begin:
          \int_set:Nn \tex_escapechar:D { -1 }
          \cs_set:cpn
              {
                hook~'#1'. ^^J
                (hooks) \prg_replicate:nn { 13 } { ~ }
                #2 % more message text
              }
              \exp_not:v { c__hook_#1_parameter_tl }
            {##2}
        \group_end:
        \cs_set:Npn \exp_not:N \__hook_tmp:w
            \exp_not:V \c__hook_nine_parameters_tl
          {
            \prop_put:Nne \exp_not:N \l__hook_work_prop
              {##1} { \exp_not:N \__hook_double_hashes:n {##2} }
          }
        \exp_not:N \__hook_tmp:w
          \exp_not:V \l__hook_tmpa_tl
          \exp_args:No \exp_not:o
            { \exp_after:wN \__hook_tmp:w \l__hook_tmpb_tl }
      }
  }
\cs_new_eq:NN \__hook_normalise_fn:nn ?
\prg_new_conditional:Npnn \__hook_cs_if_empty:c #1 { p, T, F, TF }
  {
    \if:w \scan_stop: \__hook_replacement_spec:c {#1} \scan_stop:
      \prg_return_true:
    \else:
      \prg_return_false:
    \fi:
  }
\cs_new:Npn \__hook_replacement_spec:c #1
  {
    \exp_args:Nc \token_if_macro:NT {#1}
      { \cs_replacement_spec:c {#1} }
  }
\cs_new:Npn \__hook_braced_cs_parameter:n #1
  {
    \exp_last_unbraced:Ne \__hook_braced_hidden_loop:w
      { \exp_args:Nc \__hook_cs_parameter_count:N {#1} } ? \s__hook_mark
  }
\cs_new:Npn \__hook_braced_hidden_loop:w #1
  {
    \if:w ? #1
      \__hook_use_i_delimit_by_s_mark:nw
    \fi:
    { \exp_not:N \c__hook_hash_tl #1 }
    \__hook_braced_hidden_loop:w
  }
\cs_new:Npn \__hook_cs_parameter_count:N #1
  {
    \exp_last_unbraced:Nf \__hook_cs_parameter_count:w
      { \token_if_macro:NT #1 { \cs_parameter_spec:N #1 } }
      ? \__hook_cs_end:w ? \__hook_cs_end:w ? \__hook_cs_end:w
      ? \__hook_cs_end:w ? \__hook_cs_end:w ? \__hook_cs_end:w
      ? \__hook_cs_end:w ? \__hook_cs_end:w ? \__hook_cs_end:w
      \s__hook_mark
  }
\cs_new:Npn \__hook_cs_parameter_count:w #1#2 #3#4 #5#6 #7#8
  { #2 #4 #6 #8 \__hook_cs_parameter_count:w }
\cs_new:Npn \__hook_cs_end:w #1 \s__hook_mark { }
\cs_new:Npn \__hook_braced_parameter:n #1
  {
    \if_case:w
      \int_eval:n
        { \exp_args:Nv \str_count:n { c__hook_#1_parameter_tl } / 3 }
      \exp_stop_f:
    \or: {##1}
    \or: {##1} {##2}
    \or: {##1} {##2} {##3}
    \or: {##1} {##2} {##3} {##4}
    \or: {##1} {##2} {##3} {##4} {##5}
    \or: {##1} {##2} {##3} {##4} {##5} {##6}
    \or: {##1} {##2} {##3} {##4} {##5} {##6} {##7}
    \or: {##1} {##2} {##3} {##4} {##5} {##6} {##7} {##8}
    \or: {##1} {##2} {##3} {##4} {##5} {##6} {##7} {##8} {##9}
    \else:
      \msg_expandable_error:nnn { latex2e } { should-not-happen }
        { Invalid~parameter~spec. }
    \fi:
  }
\cs_new:Npn \__hook_parameter:n #1
  {
    \cs:w c__hook_
    \tl_if_exist:cTF { c__hook_#1_parameter_tl }
      { #1_parameter } { empty }
    _tl \cs_end:
  }
\cs_new:Npn \__hook_generic_parameter:n #1
  { \__hook_generic_parameter:w #1 / / / \s__hook_mark }
\cs_new:Npn \__hook_generic_parameter:w #1 / #2 / #3 / #4 \s__hook_mark
  {
    \cs_if_exist_use:cF { c__hook_parameter_#1/./#3_tl }
      { \c__hook_empty_tl }
  }
\prop_new:c { g__hook_??_code_prop }
\prop_new:c { __hook~?? }
\tl_new:c { g__hook_??_reversed_tl }
\tl_const:cn { c__hook_??_parameter_tl } { }
\cs_new_protected:Npn \hook_gset_rule:nnnn #1#2#3#4
  {
    \__hook_normalize_hook_rule_args:Nnnnn \__hook_gset_rule:nnnn
      {#1} {#2} {#3} {#4}
  }
\cs_new_protected:Npn \__hook_gset_rule:nnnn #1#2#3#4
  {
    \__hook_if_deprecated_generic:nT {#1}
      {
        \__hook_deprecated_generic_warn:n {#1}
        \__hook_do_deprecated_generic:Nn \__hook_gset_rule:nnnn {#1}
          {#2} {#3} {#4}
        \__hook_use_none_delimit_by_s_mark:w
      }
    \__hook_if_execute_immediately:nT {#1}
      {
        \msg_error:nnnnnn { hooks } { rule-too-late }
          {#1} {#2} {#3} {#4}
        \__hook_use_none_delimit_by_s_mark:w
      }
    \__hook_init_structure:n {#1}
    \__hook_rule_gclear:nnn {#1} {#2} {#4}
    \cs_if_exist_use:cTF { __hook_rule_#3_gset:nnn }
      {
          {#1} {#2} {#4}
        \__hook_update_hook_code:n {#1}
      }
      {
        \msg_error:nnnnnn { hooks } { unknown-rule }
          {#1} {#2} {#3} {#4}
      }
    \s__hook_mark
  }
\cs_new_protected:Npn \__hook_rule_before_gset:nnn #1#2#3
  {
    \__hook_tl_gset:cx
      { g__hook_#1_rule_ \__hook_label_pair:nn {#2} {#3} _tl }
      { \__hook_label_ordered:nnTF {#2} {#3} { < } { > } }
  }
\cs_new_eq:cN { __hook_rule_<_gset:nnn } \__hook_rule_before_gset:nnn
\cs_new_protected:Npn \__hook_rule_after_gset:nnn #1#2#3
  {
    \__hook_tl_gset:cx
      { g__hook_#1_rule_ \__hook_label_pair:nn {#3} {#2} _tl }
      { \__hook_label_ordered:nnTF {#3} {#2} { < } { > } }
  }
\cs_new_eq:cN { __hook_rule_>_gset:nnn } \__hook_rule_after_gset:nnn
\cs_new_protected:Npn \__hook_rule_voids_gset:nnn #1#2#3
  {
    \__hook_tl_gset:cx
      { g__hook_#1_rule_ \__hook_label_pair:nn {#2} {#3} _tl }
      { \__hook_label_ordered:nnTF {#2} {#3} { -> } { <- } }
  }
\cs_new_protected:cpn { __hook_rule_incompatible-error_gset:nnn } #1#2#3
  { \__hook_tl_gset:cn
      { g__hook_#1_rule_ \__hook_label_pair:nn {#2} {#3} _tl }
      { xE }
  }
\cs_new_protected:cpn { __hook_rule_incompatible-warning_gset:nnn } #1#2#3
  { \__hook_tl_gset:cn
      { g__hook_#1_rule_ \__hook_label_pair:nn {#2} {#3} _tl }
      { xW }
  }
\cs_new_protected:Npn \__hook_rule_unrelated_gset:nnn #1#2#3 { }
\cs_new_protected:Npn \__hook_rule_gclear:nnn #1#2#3
  { \cs_undefine:c { g__hook_#1_rule_ \__hook_label_pair:nn {#2} {#3} _tl } }
\cs_new:Npn \__hook_label_pair:nn #1#2
  {
    \if_case:w \__hook_str_compare:nn {#1} {#2} \exp_stop_f:
           #1 | #1 %  0
    \or:   #1 | #2 % +1
    \else: #2 | #1 % -1
    \fi:
  }
\prg_new_conditional:Npnn \__hook_label_ordered:nn #1#2 { TF }
  {
    \if_int_compare:w \__hook_str_compare:nn {#1} {#2} > 0 \exp_stop_f:
      \prg_return_true:
    \else:
      \prg_return_false:
    \fi:
  }
\cs_new:Npn \__hook_if_label_case:nnnnn #1#2
  {
    \cs:w use_
      \if_case:w \__hook_str_compare:nn {#1} {#2}
         i \or: ii \else: iii \fi: :nnn
    \cs_end:
  }
\cs_new_eq:NN \__hook_update_hook_code:n \use_none:n
\cs_new_protected:Npn \__hook_initialize_all:
  {
    \cs_gset_eq:NN \__hook_update_hook_code:n \__hook_initialize_hook_code:n
    \__hook_debug:n { \prop_gclear:N \g__hook_used_prop }
    \seq_map_inline:Nn \g__hook_all_seq
      {
        \tl_if_empty:cTF { c__hook_##1_parameter_tl }
          { \__hook_replacing_args_false: }
          { \__hook_replacing_args_true: }
        \__hook_update_hook_code:n {##1}
        \__hook_replacing_args_reset:
      }
    \__hook_debug:n
      {
        \iow_term:x { ^^J All~initialized~(non-empty)~hooks: }
        \prop_map_inline:Nn \g__hook_used_prop
          {
            \iow_term:x
              { ^^J ~ ##1 ~ -> ~ \cs_replacement_spec:c { __hook~##1 } ~ }
          }
      }
    \__hook_post_initialization_defs:
  }
\cs_new_protected:Npn \__hook_initialize_hook_code:n #1
  {
    \__hook_debug:n
      { \iow_term:x { ^^J Update~code~for~hook~'#1' \on@line :^^J } }
    \__hook_include_legacy_code_chunk:n {#1}
    \__hook_if_usable:nT {#1}
      {
        \prop_if_empty:cTF { g__hook_#1_code_prop }
          {
            \__hook_code_gset:ne {#1}
              {
                \exp_not:c { __hook_toplevel~#1 }
                \__hook_braced_parameter:n {#1}
                \exp_not:c { __hook_next~#1 }
                \__hook_braced_parameter:n {#1}
              }
          }
          {
            \__hook_if_reversed:nTF {#1}
              { \cs_set_eq:NN \__hook_tl_gput:Nn    \__hook_tl_gput_left:Nn
                \cs_set_eq:NN \__hook_clist_gput:NV \clist_gput_left:NV  }
              { \cs_set_eq:NN \__hook_tl_gput:Nn    \__hook_tl_gput_right:Nn
                \cs_set_eq:NN \__hook_clist_gput:NV \clist_gput_right:NV }
            \prop_set_eq:Nc \l__hook_work_prop { g__hook_#1_code_prop }
            \__hook_initialize_single:ccn
              { __hook~#1 } { g__hook_#1_labels_clist } {#1}
            \__hook_debug:n
              { \exp_args:NNx \prop_gput:Nnn \g__hook_used_prop {#1} { } }
          }
      }
  }
\cs_new:Npn \__hook_tl_csname:n #1 { l__hook_label_#1_tl }
\cs_new:Npn \__hook_seq_csname:n #1 { l__hook_label_#1_seq }
\seq_new:N \l__hook_labels_seq
\int_new:N \l__hook_labels_int
\tl_new:N \l__hook_front_tl
\tl_new:N \l__hook_rear_tl
\tl_new:c { \__hook_tl_csname:n { 0 } }
\cs_new_protected:Npn \__hook_initialize_single:NNn #1#2#3
  {
    \seq_clear:N \l__hook_labels_seq
    \int_zero:N  \l__hook_labels_int
    \tl_set:Nn \l__hook_cur_hook_tl {#3}
    \prop_map_inline:Nn \l__hook_work_prop
       {
         \int_incr:N \l__hook_labels_int
         \seq_put_right:Nn \l__hook_labels_seq {##1}
         \__hook_tl_set:cn { \__hook_tl_csname:n {##1} } { 0 }
         \seq_clear_new:c { \__hook_seq_csname:n {##1} }
       }
    \prop_map_inline:Nn \l__hook_work_prop
      {
        \prop_map_inline:Nn \l__hook_work_prop
          {
            \__hook_if_label_case:nnnnn {##1} {####1}
              { \prop_map_break: }
              { \__hook_apply_label_pair:nnn {##1} {####1} }
              { \__hook_apply_label_pair:nnn {####1} {##1} }
                  {#3}
          }
      }
    \__hook_debug:n { \__hook_debug_label_data:N \l__hook_work_prop }
    \tl_set:Nn \l__hook_rear_tl { 0 }
    \tl_set:cn { \__hook_tl_csname:n { 0 } } { 0 }
    \seq_map_inline:Nn \l__hook_labels_seq
      {
        \int_compare:nNnT { \cs:w \__hook_tl_csname:n {##1} \cs_end: } = 0
            {
              \tl_set:cn { \__hook_tl_csname:n { \l__hook_rear_tl } }{##1}
              \tl_set:Nn \l__hook_rear_tl {##1}
            }
      }
    \tl_set_eq:Nc \l__hook_front_tl { \__hook_tl_csname:n { 0 } }
    \__hook_tl_gclear:N #1
    \clist_gclear:N #2
    \bool_while_do:nn { ! \str_if_eq_p:Vn \l__hook_front_tl { 0 } }
      {
        \int_decr:N \l__hook_labels_int
        \prop_get:NVN \l__hook_work_prop \l__hook_front_tl \l__hook_return_tl
        \exp_args:NNV \__hook_tl_gput:Nn #1 \l__hook_return_tl
        \__hook_clist_gput:NV #2 \l__hook_front_tl
        \__hook_debug:n{ \iow_term:x{Handled~ code~ for~ \l__hook_front_tl} }
        \seq_map_inline:cn { \__hook_seq_csname:n { \l__hook_front_tl } }
          {
            \tl_set:cx { \__hook_tl_csname:n {##1} }
                       { \int_eval:n
                           { \cs:w \__hook_tl_csname:n {##1} \cs_end: - 1 }
                       }
            \int_compare:nNnT
                { \cs:w \__hook_tl_csname:n {##1} \cs_end: } = 0
                {
                  \tl_set:cn
                    { \__hook_tl_csname:n { \l__hook_rear_tl } } {##1}
                  \tl_set:Nn \l__hook_rear_tl            {##1}
                }
          }
        \tl_set_eq:Nc \l__hook_front_tl
                      { \__hook_tl_csname:n { \l__hook_front_tl } }
      }
    \int_compare:nNnF \l__hook_labels_int = 0
      {
        \iow_term:x{====================}
        \iow_term:x{Error:~ label~ rules~ are~ incompatible:}
        \__hook_debug_label_data:N \l__hook_work_prop
        \iow_term:x{====================}
      }
    \exp_args:NNe \__hook_tl_gput:Nn #1
      { \exp_not:c { __hook_toplevel~#3 } \__hook_braced_parameter:n {#3} }
    \__hook_tl_gput_right:Ne #1
      { \exp_not:c { __hook_next~#3 } \__hook_braced_parameter:n {#3} }
    \use:e
      {
        \cs_gset:cpn { __hook~#3 } \use:c { c__hook_#3_parameter_tl }
          { \exp_not:V #1 }
      }
  }
\cs_generate_variant:Nn \__hook_initialize_single:NNn { cc }
\cs_new:Npn \__hook_tl_gput:Nn    { \ERROR }
\cs_new:Npn \__hook_clist_gput:NV { \ERROR }
\cs_new_protected:Npn \__hook_apply_label_pair:nnn #1#2#3
  {
    \__hook_label_if_exist_apply:nnnF {#1} {#2} {#3}
      {
        \__hook_label_if_exist_apply:nnnF {#1} {#2} { ?? } { }
      }
  }
\cs_new_protected:Npn \__hook_label_if_exist_apply:nnnF #1#2#3
  {
    \if_cs_exist:w g__hook_ #3 _rule_ #1 | #2 _tl \cs_end:
      \__hook_apply_rule:nnn {#1} {#2} {#3}
      \exp_after:wN \use_none:n
    \else:
      \use:nn
    \fi:
  }
\cs_new_protected:Npn \__hook_apply_rule:nnn #1#2#3
  {
    \cs:w __hook_apply_
      \cs:w g__hook_#3_reversed_tl \cs_end: rule_
        \cs:w g__hook_ #3 _rule_ #1 | #2 _tl \cs_end: :nnn \cs_end:
      {#1} {#2} {#3}
  }
\cs_new_protected:cpn { __hook_apply_rule_<:nnn } #1#2#3
  {
    \__hook_debug:n { \__hook_msg_pair_found:nnn {#1} {#2} {#3} }
    \tl_set:cx { \__hook_tl_csname:n {#2} }
       { \int_eval:n{ \cs:w \__hook_tl_csname:n {#2} \cs_end: + 1 } }
    \seq_put_right:cn{ \__hook_seq_csname:n {#1} }{#2}
  }
\cs_new_protected:cpn { __hook_apply_rule_>:nnn } #1#2#3
  {
    \__hook_debug:n { \__hook_msg_pair_found:nnn {#1} {#2} {#3} }
    \tl_set:cx { \__hook_tl_csname:n {#1} }
       { \int_eval:n{ \cs:w \__hook_tl_csname:n {#1} \cs_end: + 1 } }
    \seq_put_right:cn{ \__hook_seq_csname:n {#2} }{#1}
  }
\cs_new_protected:cpn { __hook_apply_rule_xE:nnn } #1#2#3
  {
    \__hook_debug:n { \__hook_msg_pair_found:nnn {#1} {#2} {#3} }
    \msg_error:nnnnnn { hooks } { labels-incompatible }
      {#1} {#2} {#3} { 1 }
    \use:c { __hook_apply_rule_->:nnn } {#1} {#2} {#3}
    \use:c { __hook_apply_rule_<-:nnn } {#1} {#2} {#3}
  }
\cs_new_protected:cpn { __hook_apply_rule_xW:nnn } #1#2#3
  {
    \__hook_debug:n { \__hook_msg_pair_found:nnn {#1} {#2} {#3} }
    \msg_warning:nnnnnn { hooks } { labels-incompatible }
      {#1} {#2} {#3} { 0 }
  }
\cs_new_protected:cpn { __hook_apply_rule_->:nnn } #1#2#3
  {
    \__hook_debug:n
       {
         \__hook_msg_pair_found:nnn {#1} {#2} {#3}
         \iow_term:x{--->~ Drop~ '#2'~ code~ from~
           \iow_char:N \\ g__hook_ \l__hook_cur_hook_tl _code_prop ~
           because~ of~ '#1' }
       }
    \prop_put:Nnn \l__hook_work_prop {#2} { }
  }
\cs_new_protected:cpn { __hook_apply_rule_<-:nnn } #1#2#3
  {
    \__hook_debug:n
       {
         \__hook_msg_pair_found:nnn {#1} {#2} {#3}
         \iow_term:x{--->~ Drop~ '#1'~ code~ from~
           \iow_char:N \\ g__hook_ \l__hook_cur_hook_tl _code_prop ~
           because~ of~ '#2' }
       }
    \prop_put:Nnn \l__hook_work_prop {#1} { }
  }
\cs_new_eq:cc { __hook_apply_-rule_<:nnn } { __hook_apply_rule_>:nnn }
\cs_new_eq:cc { __hook_apply_-rule_>:nnn } { __hook_apply_rule_<:nnn }
\cs_new_eq:cc { __hook_apply_-rule_<-:nnn } { __hook_apply_rule_<-:nnn }
\cs_new_eq:cc { __hook_apply_-rule_->:nnn } { __hook_apply_rule_->:nnn }
\cs_new_eq:cc { __hook_apply_-rule_xE:nnn } { __hook_apply_rule_xE:nnn }
\cs_new_eq:cc { __hook_apply_-rule_xW:nnn } { __hook_apply_rule_xW:nnn }
\cs_new_protected:Npn \__hook_msg_pair_found:nnn #1#2#3
  {
    \iow_term:x{~ \str_if_eq:nnTF {#3} {??} {default} {~normal} ~
        rule~ \__hook_label_pair:nn {#1} {#2}:~
        \use:c { g__hook_#3_rule_ \__hook_label_pair:nn {#1} {#2} _tl } ~
        found}
  }
\cs_new_protected:Npn \__hook_debug_label_data:N #1 {
  \iow_term:x{Code~ labels~ for~ sorting:}
  \iow_term:x{~ \seq_use:Nnnn\l__hook_labels_seq {~and~}{,~}{~and~} }
  \iow_term:x{^^J Data~ structure~ for~ label~ rules:}
  \prop_map_inline:Nn #1
       {
         \iow_term:x{~ ##1~ =~ \tl_use:c{ \__hook_tl_csname:n {##1} }~ ->~
           \seq_use:cnnn{ \__hook_seq_csname:n {##1} }{~->~}{~->~}{~->~}
         }
       }
  \iow_term:x{}
}
\cs_new_protected:Npn \hook_log:n #1
  {
    \cs_set_eq:NN \__hook_log_cmd:x \iow_log:x
    \__hook_normalize_hook_args:Nn \__hook_log:nN {#1} \tl_log:x
  }
\cs_new_protected:Npn \hook_show:n #1
  {
    \cs_set_eq:NN \__hook_log_cmd:x \iow_term:x
    \__hook_normalize_hook_args:Nn \__hook_log:nN {#1} \tl_show:x
  }
\cs_new_protected:Npn \__hook_log_line:x #1
  { \__hook_log_cmd:x { >~#1 } }
\cs_new_protected:Npn \__hook_log_line_indent:x #1
  { \__hook_log_cmd:x { >~\@spaces #1 } }
\cs_new_protected:Npn \__hook_log:nN #1 #2
  {
    \__hook_if_deprecated_generic:nT {#1}
      {
        \__hook_deprecated_generic_warn:n {#1}
        \__hook_do_deprecated_generic:Nn \__hook_log:nN {#1} #2
        \exp_after:wN \use_none:nnnnnnnnn \use_none:nnnnn
      }
    \__hook_preamble_hook:n {#1}
    \__hook_log_cmd:x
      {
        ^^J ->~The~
        \__hook_if_generic:nT {#1} { generic~ }
        hook~'#1'
        \__hook_if_disabled:nF {#1}
          {
            \exp_args:Nne \__hook_print_args:nn {#1}
              {
                \int_eval:n
                  { \str_count:e { \__hook_parameter:n {#1} } / 3 }
              }
          }
        :
      }
    \__hook_if_usable:nF {#1}
      { \__hook_log_line:x { The~hook~is~not~declared. } }
    \__hook_if_disabled:nT {#1}
      { \__hook_log_line:x { The~hook~is~disabled. } }
    \hook_if_empty:nTF {#1}
      { #2 { The~hook~is~empty } }
      {
        \__hook_log_line:x { Code~chunks: }
        \bool_lazy_or:nnTF
          { ! \prop_if_exist_p:c { g__hook_#1_code_prop } }
          { \prop_if_empty_p:c { g__hook_#1_code_prop } }
          { \__hook_log_line_indent:x { --- } }
          {
            \prop_map_inline:cn { g__hook_#1_code_prop }
              {
                \exp_after:wN \cs_set:Npn \exp_after:wN \__hook_tmp:w
                  \c__hook_nine_parameters_tl {##2}
                \__hook_log_line_indent:x
                  { ##1~->~\cs_replacement_spec:N \__hook_tmp:w }
              }
          }
        \__hook_log_line:x
          {
            Document-level~(top-level)~code
            \__hook_if_usable:nT {#1}
              { ~(executed~\__hook_if_reversed:nTF {#1} {first} {last} ) } :
          }
        \__hook_log_line_indent:x
          {
            \__hook_cs_if_empty:cTF { __hook_toplevel~#1 }
              { --- }
              { -> ~ \cs_replacement_spec:c { __hook_toplevel~#1 } }
          }
        \__hook_log_line:x { Extra~code~for~next~invocation: }
        \__hook_log_line_indent:x
          {
            \__hook_cs_if_empty:cTF { __hook_next~#1 }
              { --- }
              {
                -> ~ \exp_last_unbraced:Nf \__hook_log_next_code:w
                  { \cs_replacement_spec:c { __hook_next~#1 } }
              }
          }
        \__hook_log_line:x { Rules: }
        \bool_set_true:N \l__hook_tmpa_bool
        \__hook_list_rules:nn {#1}
          {
            \bool_set_false:N \l__hook_tmpa_bool
            \__hook_log_line_indent:x
              {
                ##2~ with~
                \str_if_eq:nnT {##3} {??} { default~ }
                relation~ ##1
              }
          }
        \bool_if:NT \l__hook_tmpa_bool
          { \__hook_log_line_indent:x { --- } }
        \bool_lazy_and:nnTF
            { \__hook_if_usable_p:n {#1} }
            { ! \hook_if_empty_p:n {#1} }
          {
            \__hook_log_line:x
              {
                Execution~order
                \bool_if:NTF \l__hook_tmpa_bool
                  { \__hook_if_reversed:nT {#1} { ~(after~reversal) } }
                  { ~(after~
                    \__hook_if_reversed:nT {#1} { reversal~and~ }
                    applying~rules)
                  } :
              }
            #2 % \tl_show:n
              {
                \@spaces
                \clist_if_empty:cTF { g__hook_#1_labels_clist }
                  { --- }
                  { \clist_use:cn { g__hook_#1_labels_clist } { ,~ } }
              }
          }
          {
            \__hook_log_line:x { Execution~order: }
            #2
              {
                \@spaces Not~set~because~the~hook~ \__hook_if_usable:nTF {#1}
                  { code~pool~is~empty }
                  { is~\__hook_if_disabled:nTF {#1} {disabled} {undeclared} }
              }
          }
      }
  }
\exp_last_unbraced:NNNNo
\cs_new:Npn \__hook_log_next_code:w #1 \c_right_brace_str { }
\cs_new:Npn \__hook_print_args:nn #1 #2
  {
    \int_compare:nNnT {#2} > { 0 }
      {
        \__hook_if_declared:nT {#1} { \use_none:nnn }
        \__hook_if_cmd_hook:nT {#1}
          { \use_i:nnn { ~ (unknown ~ } }
        \use:n { ~ (#2 ~ }
        argument \int_compare:nNnT {#2} > { 1 } { s } )
      }
  }
\cs_new_protected:Npn \__hook_list_rules:nn #1 #2
  {
    \prop_if_exist:cT { g__hook_#1_code_prop }
      {
        \cs_set_protected:Npn \__hook_tmp:w ##1 ##2 ##3 {#2}
        \prop_map_inline:cn { g__hook_#1_code_prop }
          {
            \prop_map_inline:cn { g__hook_#1_code_prop }
              {
                \__hook_if_label_case:nnnnn {##1} {####1}
                  { \prop_map_break: }
                  { \__hook_list_one_rule:nnn {##1} {####1} }
                  { \__hook_list_one_rule:nnn {####1} {##1} }
                      {#1}
              }
          }
      }
  }
\cs_new_protected:Npn \__hook_list_one_rule:nnn #1#2#3
  {
    \__hook_list_if_rule_exists:nnnF {#1} {#2} {#3}
      { \__hook_list_if_rule_exists:nnnF {#1} {#2} { ?? } { } }
  }
\cs_new_protected:Npn \__hook_list_if_rule_exists:nnnF #1#2#3
  {
    \if_cs_exist:w g__hook_ #3 _rule_ #1 | #2 _tl \cs_end:
      \exp_args:Nv \__hook_tmp:w
        { g__hook_ #3 _rule_ #1 | #2 _tl } { #1 | #2 } {#3}
      \exp_after:wN \use_none:nn
    \fi:
    \use:n
  }
\cs_new_protected:Npn \__hook_debug_print_rules:n #1
  {
    \iow_term:n { The~hook~#1~contains~the~rules: }
    \cs_set_protected:Npn \__hook_tmp:w ##1
      {
        \__hook_list_rules:nn {#1}
          {
            \iow_term:x
              {
                > ##1 {####2} ##1 => ##1 {####1}
                \str_if_eq:nnT {####3} {??} { ~(default) }
              }
          }
      }
    \exp_args:No \__hook_tmp:w { \use:nn { ~ } { ~ } }
  }
\cs_new_protected:Npn \hook_gput_next_code:nn #1 #2
  {
    \__hook_replacing_args_false:
    \__hook_normalize_hook_args:Nn \__hook_gput_next_code:nn {#1} {#2}
    \__hook_replacing_args_reset:
  }
\cs_new_protected:Npn \hook_gput_next_code_with_args:nn #1 #2
  {
    \__hook_replacing_args_true:
    \__hook_normalize_hook_args:Nn \__hook_gput_next_code:nn {#1} {#2}
    \__hook_replacing_args_reset:
  }
\cs_new_protected:Npn \__hook_gput_next_code:nn #1 #2
  {
    \__hook_if_disabled:nTF {#1}
      { \msg_error:nnn { hooks } { hook-disabled } {#1} }
      {
        \__hook_if_structure_exist:nTF {#1}
          { \__hook_gput_next_do:nn }
          { \__hook_try_declaring_generic_next_hook:nn }
              {#1} {#2}
      }
  }
\cs_new_protected:Npn \__hook_gput_next_do:nn #1
  {
    \__hook_init_structure:n {#1}
    \__hook_chk_args_allowed:nn {#1} { AddToHookNext }
    \__hook_cs_if_empty:cT { __hook~#1 }
      { \__hook_update_hook_code:n {#1} }
    \__hook_cs_if_empty:cT { __hook_next~#1 }
      { \__hook_next_gset:nn {#1} { \__hook_clear_next:n {#1} } }
    \__hook_cs_gput_right:nnn { _next } {#1}
  }
\cs_new_protected:Npn \hook_gclear_next_code:n #1
  { \__hook_normalize_hook_args:Nn \__hook_clear_next:n {#1} }
\cs_new_protected:Npn \__hook_clear_next:n #1
  { \__hook_next_gset:nn {#1} { } }
\cs_new_protected:Npn \hook_use:n #1
  {
    \__hook_preamble_hook:n {#1}
    \__hook_use_initialized:n {#1}
  }
\cs_new:Npn \__hook_use_initialized:n #1
  {
    \if_cs_exist:w __hook~#1 \cs_end:
      \cs:w __hook~#1 \use_i:nn
    \fi:
    \use_none:n
    \cs_end:
  }
\cs_new_protected:Npn \__hook_preamble_hook:n #1
  {
    \if_cs_exist:w __hook~#1 \cs_end:
      \__hook_initialize_hook_code:n {#1}
    \fi:
  }
\cs_new_protected:Npn \hook_use:nnw #1
  {
    \__hook_preamble_hook:n {#1}
    \__hook_use_initialized:nnw {#1}
  }
\cs_new:Npn \__hook_use_initialized:nnw #1 #2
  {
    \cs:w
      \if_cs_exist:w __hook~#1 \cs_end:
        __hook~#1
      \else:
        use_none: \prg_replicate:nn {#2} { n }
      \fi:
    \cs_end:
  }
\cs_new_protected:Npn \__hook_post_initialization_defs:
  {
    \cs_gset_eq:NN \hook_use:n \__hook_use_initialized:n
    \cs_gset_eq:NN \hook_use:nnw \__hook_use_initialized:nnw
    \cs_gset_eq:NN \__hook_preamble_hook:n \use_none:n
    \cs_gset_eq:NN \__hook_post_initialization_defs: \prg_do_nothing:
  }
\cs_new_protected:Npn \hook_use_once:n #1
  {
    \__hook_if_execute_immediately:nF {#1}
      { \__hook_normalize_hook_args:Nn \__hook_use_once:nn
          { \use:n {#1} } { 0 } }
  }
\cs_new_protected:Npn \hook_use_once:nnw #1 #2
  {
    \__hook_if_execute_immediately:nF {#1}
      { \__hook_normalize_hook_args:Nn \__hook_use_once:nn
          { \use:n {#1} } {#2} }
  }
\cs_new_protected:Npn \__hook_use_once:nn #1 #2
  {
    \__hook_preamble_hook:n {#1}
    \__hook_use_once_set:n {#1}
    \__hook_replacing_args_false:
    \__hook_cs_gput_right:nnn { _next } {#1}
      { \__hook_use_once_clear:n {#1} }
    \__hook_replacing_args_reset:
    \__hook_if_usable:nTF {#1}
      { \__hook_use_initialized:n {#1} }
      {
        \int_compare:nNnT {#2} > { 0 }
          { \use:c { use_none: \prg_replicate:nn {#2} { n } } }
      }
  }
\cs_new_protected:Npn \__hook_use_once_set:n #1
  { \__hook_tl_gset:cn { g__hook_#1_reversed_tl } { I } }
\cs_new_protected:Npn \__hook_use_once_clear:n #1
  {
    \__hook_code_gset:nn {#1} { }
    \__hook_next_gset:nn {#1} { }
    \__hook_toplevel_gset:nn {#1} { }
    \prop_gclear_new:c { g__hook_#1_code_prop }
  }
\prg_new_conditional:Npnn \__hook_if_execute_immediately:n #1 { T, F, TF }
  {
    \exp_after:wN \__hook_use_none_delimit_by_s_mark:w
    \if:w I
        \if_cs_exist:w g__hook_#1_reversed_tl \cs_end:
          \cs:w g__hook_#1_reversed_tl \exp_after:wN \cs_end:
        \fi:
        X
      \s__hook_mark \prg_return_true:
    \else:
      \s__hook_mark \prg_return_false:
    \fi:
  }
\prg_new_conditional:Npnn \hook_if_empty:n #1 { p , T , F , TF }
  {
    \if:w
        T
        \prop_if_exist:cT { g__hook_#1_code_prop }
          { \prop_if_empty:cF { g__hook_#1_code_prop } { F } }
        \__hook_cs_if_empty:cF { __hook_toplevel~#1 } { F }
        \__hook_cs_if_empty:cF { __hook_next~#1 } { F }
        T
      \prg_return_true:
    \else:
      \prg_return_false:
    \fi:
  }
\prg_new_conditional:Npnn \__hook_if_usable:n #1 { p , T , F , TF }
  {
    \cs_if_exist:cTF { __hook~#1 }
      { \prg_return_true: }
      { \prg_return_false: }
  }
\prg_new_conditional:Npnn \__hook_if_structure_exist:n #1 { p , T , F , TF }
  {
    \prop_if_exist:cTF { g__hook_#1_code_prop }
      { \prg_return_true: }
      { \prg_return_false: }
  }
\prg_new_conditional:Npnn \__hook_if_declared:n #1 { p, T, F, TF }
  {
    \tl_if_exist:cTF { g__hook_#1_declared_tl }
      { \prg_return_true: }
      { \prg_return_false: }
  }
\prg_new_conditional:Npnn \__hook_if_reversed:n #1 { p , T , F , TF }
  {
    \exp_after:wN \__hook_use_none_delimit_by_s_mark:w
    \if:w - \cs:w g__hook_#1_reversed_tl \cs_end:
      \s__hook_mark \prg_return_true:
    \else:
      \s__hook_mark \prg_return_false:
    \fi:
  }
\prg_new_conditional:Npnn \__hook_if_generic:n #1 { T, TF }
  { \__hook_if_generic:w #1 / / / \s__hook_mark }
\cs_new:Npn \__hook_if_generic:w #1 / #2 / #3 / #4 \s__hook_mark
  {
    \cs_if_exist:cTF { c__hook_generic_#1/./#3_tl }
      { \prg_return_true: }
      { \prg_return_false: }
  }
\prg_new_conditional:Npnn \__hook_if_deprecated_generic:n #1 { T, TF }
  { \__hook_if_deprecated_generic:w #1 / / / \s__hook_mark }
\cs_new:Npn \__hook_if_deprecated_generic:w #1 / #2 / #3 / #4 \s__hook_mark
  {
    \cs_if_exist:cTF { c__hook_deprecated_#1/./#2_tl }
      {
        \tl_if_empty:nTF {#3}
          { \prg_return_false: }
          { \prg_return_true: }
      }
      { \prg_return_false: }
  }
\prg_new_conditional:Npnn \__hook_if_cmd_hook:n #1 { T }
  { \__hook_if_cmd_hook:w #1 / / / \s__hook_mark }
\cs_new:Npn \__hook_if_cmd_hook:w #1 / #2 / #3 / #4 \s__hook_mark
  {
    \if:w Y
          \str_if_eq:nnF {#1} { cmd } { N }
          \tl_if_exist:cF { c__hook_generic_#1/./#3_tl } { N }
          Y
      \prg_return_true:
    \else:
      \prg_return_false:
    \fi:
  }
\prg_new_conditional:Npnn \__hook_if_generic_reversed:n #1 { T }
  { \__hook_if_generic_reversed:w #1 / / / \scan_stop: }
\cs_new:Npn \__hook_if_generic_reversed:w #1 / #2 / #3 / #4 \scan_stop:
  {
    \if_charcode:w - \cs:w c__hook_generic_#1/./#3_tl \cs_end:
      \prg_return_true:
    \else:
      \prg_return_false:
    \fi:
  }
\seq_new:N \g__hook_replacing_stack_seq
\cs_new:Npn \__hook_misused_if_replacing_args:nn #1 #2
  {
    \msg_expandable_error:nnn { latex2e } { should-not-happen }
      { Misused~\__hook_if_replacing_args:. }
  }
\cs_new:Npn \__hook_if_replacing_args:TF
  { \__hook_misused_if_replacing_args:nn }
\cs_new_protected:Npn \__hook_replacing_args_true:
  {
    \seq_gpush:No \g__hook_replacing_stack_seq
      { \__hook_if_replacing_args:TF }
    \cs_set:Npn \__hook_if_replacing_args:TF { \use_i:nn }
  }
\cs_new_protected:Npn \__hook_replacing_args_false:
  {
    \seq_gpush:No \g__hook_replacing_stack_seq
      { \__hook_if_replacing_args:TF }
    \cs_set:Npn \__hook_if_replacing_args:TF { \use_ii:nn }
  }
\cs_new_protected:Npn \__hook_replacing_args_reset:
  {
    \seq_gpop:NN \g__hook_replacing_stack_seq \l__hook_return_tl
    \cs_gset_eq:NN \__hook_if_replacing_args:TF \l__hook_return_tl
  }
\prop_gput:Nnn \g_msg_module_type_prop { hooks } { LaTeX }
\prop_gput:Nnn \g_msg_module_type_prop { latex2e } { LaTeX }
\prop_gput:Nnn \g_msg_module_name_prop { latex2e } { kernel }
\msg_new:nnnn { hooks } { labels-incompatible }
  {
    Labels~'#1'~and~'#2'~are~incompatible
    \str_if_eq:nnF {#3} {??} { ~in~hook~'#3' } .~
    \int_compare:nNnTF {#4} = { 1 }
      { The~ code~ for~ both~ labels~ will~ be~ dropped. }
      { You~ may~ see~ errors~ later. }
  }
  { LaTeX~found~two~incompatible~labels~in~the~same~hook.~
    This~indicates~an~incompatibility~between~packages.  }
\msg_new:nnnn { hooks } { exists }
    { Hook~'#1'~ has~ already~ been~ declared. }
    { There~ already~ exists~ a~ hook~ declaration~ with~ this~
      name.\\
      Please~ use~ a~ different~ name~ for~ your~ hook.}
\msg_new:nnnn { hooks } { too-many-args }
  { Too~many~arguments~for~hook~'#1'. }
  {
    You~tried~to~declare~a~hook~with~#2~arguments,~but~a~
    hook~can~only~have~up~to~nine.~LaTeX~will~define~this~
    hook~with~nine~arguments.
  }
\msg_new:nnnn { hooks } { without-args }
  { Hook~'#1'~has~no~arguments. }
  {
    You~tried~to~use~\iow_char:N\\#2WithArguments~
    on~a~hook~that~takes~no~arguments.\\
    Check~the~usage~of~the~hook~or~use~\iow_char:N\\#2~instead.\\
    \\
    LaTeX~will~use~\iow_char:N\\#2.
  }
\msg_new:nnnn { hooks } { one-time-args }
  { You~can't~have~arguments~in~used~one-time~hook~'#1'. }
  {
    You~tried~to~use~\iow_char:N\\#2WithArguments~
    on~a~one-time~hook~that~has~already~been~used.~
    You~have~to~add~the~code~before~the~hook~is~used,~
    or~add~the~code~without~arguments~using~\iow_char:N\\#2~instead.\\
    \\
    LaTeX~will~use~\iow_char:N\\#2.
  }
\msg_new:nnnn { hooks } { hook-disabled }
  { Cannot~add~code~to~disabled~hook~'#1'. }
  {
    The~hook~'#1'~you~tried~to~add~code~to~was~previously~disabled~
    with~\iow_char:N\\hook_disable_generic:n~or~
    \iow_char:N\\DisableGenericHook,~so~
    it~cannot~have~code~added~to~it.
  }
\msg_new:nnn { hooks } { empty-label }
  {
    Empty~code~label~\msg_line_context:.~
    Using~'\__hook_currname_or_default:'~instead.
  }
\msg_new:nnn { hooks } { empty-hook }
  {
    Empty~hook~name~\msg_line_context:.
  }
\msg_new:nnn { hooks } { no-default-label }
  {
    Missing~(empty)~default~label~\msg_line_context:. \\
    This~command~was~ignored.
  }
\msg_new:nnnn { hooks } { unknown-rule }
  {
    Unknown~ relationship~ '#3'~
    between~ labels~ '#2'~ and~ '#4'~
    \str_if_eq:nnF {#1} {??} { ~in~hook~'#1' }. ~
    Perhaps~ a~ misspelling?
  }
  {
    The~ relation~ used~ not~ known~ to~ the~ system.~ Allowed~ values~ are~
    'before'~ or~ '<',~
    'after'~ or~ '>',~
    'incompatible-warning',~
    'incompatible-error',~
    'voids'~ or~
    'unrelated'.
  }
\msg_new:nnnn { hooks } { rule-too-late }
  {
    Sorting~rule~for~'#1'~hook~applied~too~late.\\
    Try~setting~this~rule~earlier.
  }
  {
    You~tried~to~set~the~ordering~of~hook~'#1'~using\\
    \ \ \iow_char:N\\DeclareHookRule{#1}{#2}{#3}{#4}\\
    but~hook~'#1'~was~already~used~as~a~one-time~hook,~
    thus~sorting~is\\
    no~longer~possible.~Declare~the~rule~
    before~the~hook~is~used.
  }
\msg_new:nnnn { hooks } { misused-top-level }
  {
    Illegal~use~of~\iow_char:N \\AddToHook{#1}[top-level]{...}.\\
    'top-level'~is~reserved~for~the~user's~document.
  }
  {
    The~'top-level'~label~is~meant~for~user~code~only,~and~should~only~
    be~used~(sparingly)~in~the~main~document.~Use~the~default~label~
    '\__hook_currname_or_default:'~for~this~\@cls@pkg,~or~another~
    suitable~label.
  }
\msg_new:nnn { hooks } { set-top-level }
  {
    You~cannot~change~the~default~label~#1~'top-level'.~Illegal \\
    \use:nn { ~ } { ~ } \iow_char:N \\#2{#3} \\
    \msg_line_context:.
  }
\msg_new:nnn { hooks } { extra-pop-label }
  {
    Extra~\iow_char:N \\PopDefaultHookLabel. \\
    This~command~will~be~ignored.
  }
\msg_new:nnn { hooks } { missing-pop-label }
  {
    Missing~\iow_char:N \\PopDefaultHookLabel. \\
    The~label~'#1'~was~pushed~but~never~popped.~Something~is~wrong.
  }
\msg_new:nnn { latex2e } { should-not-happen }
  {
    This~should~not~happen.~#1 \\
    Please~report~at~https://github.com/latex3/latex2e.
  }
\msg_new:nnn { hooks } { activate-disabled }
  {
    Cannot~ activate~ hook~ '#1'~ because~ it~ is~ disabled!
  }
\msg_new:nnn { hooks } { cannot-remove }
  {
    Cannot~remove~chunk~'#2'~from~hook~'#1'~because~
    \__hook_if_structure_exist:nTF {#1}
      { it~does~not~exist~in~that~hook. }
      { the~hook~does~not~exist. }
  }
\msg_new:nnn { hooks } { generic-deprecated }
  {
    Generic~hook~'#1/#2/#3'~is~deprecated. \\
    Use~hook~'#1/#3/#2'~instead.
  }
\NewDocumentCommand \NewHook             { m }
  { \hook_new:n {#1} }
\NewDocumentCommand \NewReversedHook     { m }
  { \hook_new_reversed:n {#1} }
\NewDocumentCommand \NewMirroredHookPair { mm }
  { \hook_new_pair:nn {#1}{#2} }
\NewDocumentCommand \NewHookWithArguments             { mm }
  { \hook_new_with_args:nn {#1} {#2} }
\NewDocumentCommand \NewReversedHookWithArguments     { mm }
  { \hook_new_reversed_with_args:nn {#1} {#2} }
\NewDocumentCommand \NewMirroredHookPairWithArguments { mmm }
  { \hook_new_pair_with_args:nnn {#1} {#2} {#3} }
\NewDocumentCommand \ActivateGenericHook { m }
  { \hook_activate_generic:n {#1} }
\NewDocumentCommand \DisableGenericHook { m }
  { \hook_disable_generic:n {#1} }
\NewDocumentCommand \AddToHook { m o +m }
  { \hook_gput_code:nnn {#1} {#2} {#3} }
\NewDocumentCommand \AddToHookWithArguments { m o +m }
  { \hook_gput_code_with_args:nnn {#1} {#2} {#3} }
\NewDocumentCommand \AddToHookNext { m +m }
  { \hook_gput_next_code:nn {#1} {#2} }
\NewDocumentCommand \AddToHookNextWithArguments { m +m }
  { \hook_gput_next_code_with_args:nn {#1} {#2} }
\NewDocumentCommand \ClearHookNext { m }
  { \hook_gclear_next_code:n {#1} }
\NewDocumentCommand \RemoveFromHook { m o }
  { \hook_gremove_code:nn {#1} {#2} }
\NewDocumentCommand \SetDefaultHookLabel { m }
  { \__hook_set_default_hook_label:n {#1} }
\NewDocumentCommand \PushDefaultHookLabel { m }
  { \__hook_curr_name_push:n {#1} }
\NewDocumentCommand \PopDefaultHookLabel { }
  { \__hook_curr_name_pop: }
\cs_gset_protected:Npn \@expl@push@filename@aux@@ #1#2#3
  {
    \__hook_curr_name_push:n {#3}
    \str_gset:Nx \g_file_curr_name_str {#3}
    #1 #2 {#3}
  }
\cs_new:Npn \UseHook        { \hook_use:n }
\cs_new:Npn \UseOneTimeHook { \hook_use_once:n }
\cs_new:Npn \UseHookWithArguments        { \hook_use:nnw }
\cs_new:Npn \UseOneTimeHookWithArguments { \hook_use_once:nnw }
\cs_new_protected:Npn \ShowHook { \hook_show:n }
\cs_new_protected:Npn \LogHook { \hook_log:n }
\cs_new_protected:Npn \DebugHooksOn  { \hook_debug_on:  }
\cs_new_protected:Npn \DebugHooksOff { \hook_debug_off: }
\NewDocumentCommand \DeclareHookRule { m m m m }
                    { \hook_gset_rule:nnnn {#1}{#2}{#3}{#4} }
\NewDocumentCommand \DeclareDefaultHookRule { m m m }
                    { \hook_gset_rule:nnnn {??}{#1}{#2}{#3} }
\@onlypreamble\DeclareDefaultHookRule
\NewDocumentCommand \ClearHookRule { m m m }
{ \hook_gset_rule:nnnn {#1}{#2}{unrelated}{#3} }
\cs_new_eq:NN \IfHookEmptyTF \hook_if_empty:nTF
\cs_new_eq:NN \IfHookEmptyT \hook_if_empty:nT
\cs_new_eq:NN \IfHookEmptyF \hook_if_empty:nF
\cs_new_eq:NN \IfHookExistsTF \__hook_if_usable:nTF
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\cs_new_protected:Npn \hook_disable:n
  {
    \__hook_deprecated_warn:nn
      { hook_disable:n }
      { hook_disable_generic:n }
    \hook_disable_generic:n
  }
\cs_new_protected:Npn \hook_provide:n
  {
    \__hook_deprecated_warn:nn
      { hook_provide:n }
      { hook_activate_generic:n }
    \hook_activate_generic:n
  }
\cs_new_protected:Npn \hook_provide_reversed:n
  {
    \__hook_deprecated_warn:nn
      { hook_provide_reversed:n }
      { hook_activate_generic:n }
    \__hook_activate_generic_reversed:n
  }
\cs_new_protected:Npn \hook_provide_pair:nn
  {
    \__hook_deprecated_warn:nn
      { hook_provide_pair:nn }
      { hook_activate_generic:n }
    \__hook_activate_generic_pair:nn
  }
\cs_new_protected:Npn \__hook_activate_generic_reversed:n #1
  { \__hook_normalize_hook_args:Nn \__hook_activate_generic:nn {#1} { - } }
\cs_new_protected:Npn \__hook_activate_generic_pair:nn #1#2
  { \hook_activate_generic:n {#1} \__hook_activate_generic_reversed:n {#2} }
\cs_new_protected:Npn \DisableHook
  {
    \__hook_deprecated_warn:nn
      { DisableHook }
      { DisableGenericHook }
    \hook_disable_generic:n
  }
\cs_new_protected:Npn \ProvideHook
  {
    \__hook_deprecated_warn:nn
      { ProvideHook }
      { ActivateGenericHook }
    \hook_activate_generic:n
  }
\cs_new_protected:Npn \ProvideReversedHook
  {
    \__hook_deprecated_warn:nn
      { ProvideReversedHook }
      { ActivateGenericHook }
    \__hook_activate_generic_reversed:n
  }
\cs_new_protected:Npn \ProvideMirroredHookPair
  {
    \__hook_deprecated_warn:nn
      { ProvideMirroredHookPair }
      { ActivateGenericHook }
    \__hook_activate_generic_pair:nn
  }
\cs_new_protected:Npn \__hook_deprecated_warn:nn #1 #2
  { \msg_warning:nnnn { hooks } { deprecated } {#1} {#2} }
\msg_new:nnn { hooks } { deprecated }
  {
    Command~\iow_char:N\\#1~is~deprecated~and~will~be~removed~in~a~
    future~release. \\ \\
    Use~\iow_char:N\\#2~instead.
  }
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\cs_new_eq:NN \@expl@@@initialize@all@@
              \__hook_initialize_all:
\cs_new_eq:NN \@expl@@@hook@curr@name@pop@@
              \__hook_curr_name_pop:
\ExplSyntaxOff
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% From File: ltcmdhooks.dtx
%% Copyright (C) 2020-2025
%% Frank Mittelbach, Phelype Oleinik, The LaTeX Project
%%% From File: lthooks.dtx
\ExplSyntaxOn
\tl_new:N \g_hook_patch_action_list_tl
\int_new:N \l__hook_patch_num_args_int
\tl_new:N \l__hook_patch_prefixes_tl
\tl_new:N \l__hook_param_text_tl
\tl_new:N \l__hook_replace_text_tl
\tl_const:Nn \c__hook_hash_tl { # }
\tl_const:Nn \c__hook_hashes_tl { # # }
\cs_new_eq:NN \__hook_exp_not:NN ?
\cs_new_eq:NN \__hook_def_cmd:w ?
\quark_new:N \q__hook_recursion_tail
\quark_new:N \q__hook_recursion_stop
\prop_new:N \g__hook_delayed_patches_prop
\cs_new_protected:Npn \__hook_patch_debug:x #1
  { \__hook_debug:n { \iow_term:x { [lthooks]~#1 } } }
\cs_generate_variant:Nn \tl_rescan:nn { nV }
\cs_new_protected:Npn \__hook_try_put_cmd_hook:n #1
  { \__hook_try_put_cmd_hook:w #1 / / / \s__hook_mark {#1} }
\cs_new_protected:Npn \__hook_try_put_cmd_hook:w
    #1 / #2 / #3 / #4 \s__hook_mark #5
  {
    \__hook_debug:n { \iow_term:n { ->~Adding~cmd~hook~to~'#2'~(#3): } }
    \exp_args:Nc \__hook_patch_cmd_or_delay:Nnn {#2} {#2} {#3}
  }
\cs_new_protected:Npn \__hook_patch_cmd_or_delay:Nnn #1 #2 #3
  {
    \__hook_debug:n { \iow_term:n { ->~Add~generic~cmd~hook~for~#2~(#3). } }
    \__hook_debug:n
      { \iow_term:n { !~In~the~preamble:~delaying. } }
    \prop_gput:Nnn \g__hook_delayed_patches_prop { #2 / #3 }
      { \__hook_cmd_try_patch:nn {#2} {#3} }
  }
\cs_new_protected:Npn \__hook_cmd_begindocument_code:
  {
    \cs_gset_eq:NN \__hook_patch_cmd_or_delay:Nnn \__hook_patch_command:Nnn
    \prop_map_function:NN \g__hook_delayed_patches_prop { \use_ii:nn }
    \prop_gclear:N \g__hook_delayed_patches_prop
    \cs_undefine:N \__hook_cmd_begindocument_code:
  }
\g@addto@macro \@kernel@after@begindocument
  { \__hook_cmd_begindocument_code: }
\cs_new_protected:Npn \__hook_cmd_try_patch:nn #1 #2
  {
    \__hook_debug:n
      { \iow_term:x { ->~\string\begin{document}~try~cmd / #1 / #2. } }
    \__hook_if_declared:nTF { cmd / #1 / #2 }
      {
        \__hook_debug:n
          { \iow_term:n { .->~Giving~up:~hook~already~created. } }
      }
      {
        \cs_if_exist:cT {#1}
          { \exp_args:Nc \__hook_patch_command:Nnn {#1} {#1} {#2} }
      }
  }
\cs_new_protected:Npn \__hook_patch_command:Nnn #1 #2 #3
  {
    \__hook_patch_debug:x { analyzing~'\token_to_str:N #1' }
    \__hook_patch_debug:x { \token_to_str:N #1 = \token_to_meaning:N #1 }
    \__hook_patch_check:NNnn \cs_if_exist:NTF #1 { undef }
      {
        \__hook_patch_debug:x { ++~control~sequence~is~defined }
        \__hook_patch_check:NNnn \token_if_macro:NTF #1 { macro }
          {
            \__hook_patch_debug:x { ++~control~sequence~is~a~macro }
            \__hook_patch_check:NNnn \__hook_if_public_command:NTF #1 { expl3 }
              {
                \__hook_patch_debug:x { ++~macro~is~not~private }
                \robust@command@act
                  \g_hook_patch_action_list_tl #1
                  \__hook_retokenize_patch:Nnn { #1 {#2} {#3} }
              }
          }
      }
  }
\cs_new_protected:Npn \__hook_patch_check:NNnn #1 #2 #3 #4
  {
    #1 #2 {#4}
      {
        \msg_error:nnxx { hooks } { cant-patch }
          { \token_to_str:N #2 } {#3}
      }
  }
\use:x
  {
    \prg_new_protected_conditional:Npnn
        \exp_not:N \__hook_if_public_command:N ##1 { TF }
      {
        \exp_not:N \exp_last_unbraced:Nf
          \exp_not:N \__hook_if_public_command:w
            { \exp_not:N \cs_to_str:N ##1 }
          \tl_to_str:n { _ _ } \s__hook_mark
      }
  }
\exp_last_unbraced:NNNNo
\cs_new_protected:Npn \__hook_if_public_command:w
    #1 \tl_to_str:n { _ _ } #2 \s__hook_mark
  {
    \tl_if_empty:nTF {#2}
      { \prg_return_true: }
      { \prg_return_false: }
  }
\tl_gset:Nn \g_hook_patch_action_list_tl
  {
    { \@if@DeclareRobustCommand \__hook_patch_DeclareRobustCommand:Nnn }
    { \@if@newcommand \__hook_patch_newcommand:Nnn }
    { \__kernel_cmd_if_xparse:NTF \__hook_cmd_patch_xparse:Nnn }
  }
\cs_new_protected:Npn \__hook_patch_DeclareRobustCommand:Nnn #1
  {
    \exp_args:Nc \__hook_patch_DeclareRobustCommand_aux:Nnn
      { \cs_to_str:N #1 ~ }
  }
\cs_new_protected:Npn \__hook_patch_DeclareRobustCommand_aux:Nnn #1
  {
    \robust@command@chk@safe #1
      { \@if@newcommand #1 }
      { \use_ii:nn }
        { \__hook_patch_newcommand:Nnn }
        { \__hook_patch_expand_redefine:NNnn \c_false_bool }
          #1
  }
\cs_new_protected:Npn \__hook_patch_newcommand:Nnn #1
  {
    \exp_args:NNc \__hook_patch_expand_redefine:NNnn \c_true_bool
      { \c_backslash_str \cs_to_str:N #1 }
  }
\cs_new_protected:Npn \__hook_cmd_patch_xparse:Nnn #1
  {
    \exp_args:NNc \__hook_patch_expand_redefine:NNnn \c_false_bool
      { \cs_to_str:N #1 ~ code }
  }
\cs_new_protected:Npn \__hook_patch_expand_redefine:NNnn #1 #2 #3 #4
  {
    \__hook_patch_debug:x { ++~command~can~be~patched~without~rescanning }
    \int_set:Nn \l__hook_patch_num_args_int
      {
        \exp_args:Nf \str_count:n { \__kernel_cs_parameter_spec:N #2 } / 2
        \bool_if:NT #1 { -1 }
      }
    \int_compare:nNnTF { \l__hook_patch_num_args_int } > { \c_zero_int }
      {
        \tl_set:Nx \l__hook_tmpa_tl { \bool_if:NTF #1 { [ ] } { { } } }
        \int_step_inline:nnn { 2 } { \l__hook_patch_num_args_int }
          { \tl_put_right:Nn \l__hook_tmpa_tl { { } } }
        \exp_args:NNo \exp_args:No \__hook_if_has_hash:nTF
            { \exp_after:wN #2 \l__hook_tmpa_tl }
          { \cs_set_eq:NN \__hook_exp_not:n \exp_not:n }
          { \cs_set_eq:NN \__hook_exp_not:n \use:n }
        \cs_set_protected:Npn \__hook_tmp:w ##1 ##2
          {
            ##1 \l__hook_param_text_tl   { \use:n ##2 }
            ##1 \l__hook_replace_text_tl { \__hook_exp_not:n {##2} }
          }
        \bool_if:NTF #1
          { \__hook_tmp:w \tl_set:Nx { [ \c__hook_hashes_tl 1 ] } }
          { \__hook_tmp:w \tl_set:Nx { { \c__hook_hashes_tl 1 } } }
        \int_step_inline:nnn { 2 } { \l__hook_patch_num_args_int }
          { \__hook_tmp:w \tl_put_right:Nx { { \c__hook_hashes_tl ##1 } } }
        \tl_set:Nx \l__hook_replace_text_tl
          { \exp_not:N #2 \exp_not:V \l__hook_replace_text_tl }
        \tl_set:Nx \l__hook_replace_text_tl
          {
            \token_if_eq_meaning:NNTF \__hook_exp_not:n \exp_not:n
              { \exp_args:NNV \exp_args:No \__hook_double_hashes:n }
              { \exp_args:NV \exp_not:o }
                  \l__hook_replace_text_tl
          }
        \cs_set_eq:NN \__hook_def_cmd:w \tex_gdef:D
        \cs_set_eq:NN \__hook_exp_not:NN \prg_do_nothing:
      }
      {
        \tl_clear:N \l__hook_param_text_tl
        \tl_set_eq:NN \l__hook_replace_text_tl #2
        \cs_set_eq:NN \__hook_def_cmd:w \tex_xdef:D
        \cs_set:Npn \__hook_exp_not:NN ##1 { \exp_not:N ##1 \exp_not:N }
      }
    \group_begin:
      \int_set:Nn \tex_escapechar:D { `\/ }
      \use:x
        {
    \group_end:
    \tl_set:Nx \exp_not:N \l__hook_patch_prefixes_tl
      { \exp_not:N \__hook_make_prefixes:w \cs_prefix_spec:N #2 / / }
        }
    \__hook_disable:n { cmd / #3 / #4 }
    \cs_undefine:c { c__hook_cmd / #3 / #4_parameter_tl }
    \__hook_make_usable:nn { cmd / #3 / #4 } { \l__hook_patch_num_args_int }
    \use:e
      {
        \__hook_redefine_with_hooks:Nnnn \exp_not:N #2
        \str_if_eq:nnTF {#4} { after }
          { \use_ii_i:nn }
          { \use:nn }
            { {
                \__hook_exp_not:NN \exp_not:N \UseHookWithArguments
                  { cmd / #3 / #4 } { \int_use:N \l__hook_patch_num_args_int }
                  \__hook_braced_parameter:n { cmd / #3 / #4 }
            } }
            { { } }
            { \__hook_exp_not:NN \exp_not:V \l__hook_replace_text_tl }
      }
    \__hook_update_hook_code:n { cmd / #3 / #4 }
  }
\cs_new_protected:Npn \__hook_redefine_with_hooks:Nnnn #1 #2 #3 #4
  {
    \l__hook_patch_prefixes_tl
      \exp_after:wN \__hook_def_cmd:w
        \exp_after:wN #1 \l__hook_param_text_tl
      { #2  #4  #3 }
  }
\cs_new:Npn \__hook_make_prefixes:w / #1 /
  {
    \tl_if_empty:nF {#1}
      {
        \exp_not:c { tex_ \tl_trim_spaces:n {#1} :D }
        \__hook_make_prefixes:w /
      }
  }
\prg_new_conditional:Npnn \__hook_if_has_hash:n #1 { TF }
  { \__hook_if_has_hash:w #1 ## \s__hook_mark }
\cs_new:Npn \__hook_if_has_hash:w #1
  {
    \tl_if_single_token:nTF {#1}
      {
        \token_if_eq_catcode:NNTF ## #1
          { \__hook_if_has_hash_check:w }
          { \__hook_if_has_hash:w }
      }
      { \__hook_if_has_hash:w #1 }
  }
\cs_new:Npn \__hook_if_has_hash_check:w #1 \s__hook_mark
  { \tl_if_empty:nTF {#1} { \prg_return_false: } { \prg_return_true: } }
\cs_new:Npn \__hook_double_hashes:n #1
  { \__hook_double_hashes:w #1 \q__hook_recursion_tail \q__hook_recursion_stop }
\cs_new:Npn \__hook_double_hashes:w #1 \q__hook_recursion_stop
  {
    \tl_if_head_is_N_type:nTF {#1}
      { \__hook_double_hashes_output:N }
      {
        \tl_if_head_is_group:nTF {#1}
          { \__hook_double_hashes_group:n }
          { \__hook_double_hashes_space:w }
      }
    #1 \q__hook_recursion_stop
  }
\cs_new:Npn \__hook_double_hashes_output:N #1
  {
    \if_meaning:w \q__hook_recursion_tail #1
      \__hook_double_hashes_stop:w
    \fi:
    \if:w ?
      \if_meaning:w \c__hook_hash_tl #1 ! \fi:
      \if_meaning:w \c__hook_hashes_tl #1 ! \fi:
          ?
    \else:
      \use_i:nnnn
    \fi:
    \use:n
      {
        \if_catcode:w ## \exp_not:N #1
          \exp_after:wN \use_ii:nnnn
        \fi:
        \use_none:n
          { \exp_not:n { #1 #1 } }
      }
    \exp_not:N #1
    \__hook_double_hashes:w
  }
\cs_new:Npn \__hook_double_hashes_stop:w #1 \q__hook_recursion_stop { \fi: }
\cs_new:Npn \__hook_double_hashes_group:n #1
  { { \__hook_double_hashes:n {#1} } \__hook_double_hashes:w }
\exp_last_unbraced:NNo
\cs_new:Npn \__hook_double_hashes_space:w \c_space_tl
  { ~ \__hook_double_hashes:w }
\cs_new_protected:Npn \__hook_retokenize_patch:Nnn #1 #2 #3
  {
    \str_if_eq:eeTF { \__kernel_cs_parameter_spec:N #1 } { }
      { \__hook_patch_expand_redefine:NNnn \c_false_bool #1 {#2} {#3} }
      {
        \__hook_patch_debug:x { ..~command~can~only~be~patched~by~rescanning }
        \tl_set:Nx \l__hook_tmpa_tl
          {
            \int_compare:nNnTF { \char_value_catcode:n {`\@ } } = { 12 }
              { \exp_not:N \makeatletter } { \exp_not:N \makeatother }
          }
        \tl_set:Nx \l__hook_tmpb_tl
          {
            \bool_if:NTF \l__kernel_expl_bool
              { \ExplSyntaxOff } { \ExplSyntaxOn }
          }
        \use:x
          {
            \exp_not:N \__hook_try_patch_with_catcodes:Nnnnw
                \exp_not:n { #1 {#2} {#3} }
              { \prg_do_nothing: }
              { \exp_not:V \l__hook_tmpa_tl } % @
              { \exp_not:V \l__hook_tmpb_tl } % _:
              {
                \exp_not:V \l__hook_tmpa_tl   % @
                \exp_not:V \l__hook_tmpb_tl   % _:
              }
          }
              \q_recursion_tail \q_recursion_stop
          {
            \msg_error:nnxx { hooks } { cant-patch }
              { \c_backslash_str #2 } { retok }
          }
      }
  }
\cs_new_protected:Npn \__hook_try_patch_with_catcodes:Nnnnw #1 #2 #3 #4
  {
    \quark_if_recursion_tail_stop_do:nn {#4} { \use:n }
    \__hook_patch_debug:x { ++~trying~to~patch~by~retokenization }
    \__hook_cmd_if_scanable:NnTF {#1} {#4}
      {
        \__hook_patch_debug:x { ++~macro~can~be~retokenized~cleanly }
        \__hook_patch_debug:x { ==~retokenizing~macro~now }
        \__hook_patch_retokenize:Nnnn #1 { cmd / #2 / #3 } {#3} {#4}
        \use_i_delimit_by_q_recursion_stop:nw \use_none:n
      }
      {
        \__hook_patch_debug:x { --~macro~cannot~be~retokenized~cleanly }
        \__hook_try_patch_with_catcodes:Nnnnw #1 {#2} {#3}
      }
  }
\cs_new_eq:NN \kerneltmpDoNotUse !
\cs_new_protected:Npn \__hook_patch_required_catcodes:
  {
    \char_set_catcode_escape:N \\
    \char_set_catcode_group_begin:N \{
    \char_set_catcode_group_end:N \}
    \char_set_catcode_parameter:N \#
    % \int_set:Nn \tex_endlinechar:D { -1 }
    % \int_set:Nn \tex_newlinechar:D { -1 }
  }
\prg_new_protected_conditional:Npnn \__hook_cmd_if_scanable:Nn #1 #2 { TF }
  {
    \cs_set_eq:NN \kerneltmpDoNotUse \scan_stop:
    \cs_set_eq:NN \__hook_tmp:w \scan_stop:
    \use:x
      {
        \cs_set:Npn \__hook_tmp:w
            ####1 \tl_to_str:n { macro: } ####2 -> ####3 \s__hook_mark
          { ####1 \def \kerneltmpDoNotUse ####2   {####3} }
        \tl_set:Nx \exp_not:N \l__hook_tmpa_tl
          { \exp_not:N \__hook_tmp:w \token_to_meaning:N #1 \s__hook_mark }
      }
    \tl_rescan:nV { #2 \__hook_patch_required_catcodes: } \l__hook_tmpa_tl
    \token_if_eq_meaning:NNTF #1 \kerneltmpDoNotUse
      { \prg_return_true: }
      { \prg_return_false: }
  }
\cs_new_protected:Npn \__hook_guess_arg_count:NN #1
  {
    \exp_after:wN \__hook_guess_arg_count:wN
      \token_to_meaning:N #1 \s__hook_mark
  }
\exp_last_unbraced:NNNNo
\cs_new_protected:Npx \__hook_guess_arg_count:wN
    #1 { \tl_to_str:n { macro: } } #2 \s__hook_mark #3
  {
    \int_set:Nn #3
      {
        \exp_not:N \__hook_guess_arg_count:nw { 0 } #2
          \c_hash_str 0 \s__hook_mark
      }
  }
\use:e
  { \cs_new:Npn \exp_not:N \__hook_guess_arg_count:nw #1 #2 \c_hash_str #3 }
  {
    \int_compare:nNnTF { #1 + 1 } = {#3}
      { \__hook_guess_arg_count:nw {#3} }
      { #1 \__hook_use_none_delimit_by_s_mark:w }
  }
\cs_new_protected:Npn \__hook_patch_retokenize:Nnnn #1 #2 #3 #4
  {
    \__hook_guess_arg_count:NN #1 \l__hook_patch_num_args_int
    \__hook_disable:n {#2}
    \cs_undefine:c { c__hook_#2_parameter_tl }
    \__hook_make_usable:nn {#2} { \l__hook_patch_num_args_int }
    \tl_set:Ne \l__hook_tmpa_tl
      { \exp_args:Ne \tl_to_str:n { \__hook_braced_parameter:n {#2} } }
    \use:x
      {
        \str_replace_all:Nnn \exp_not:N \l__hook_tmpa_tl
          { #### } { \c_hash_str }
      }
    \cs_set_eq:NN \kerneltmpDoNotUse \scan_stop:
    \cs_set_eq:NN \__hook_tmp:w \scan_stop:
    \use:x
      {
        \cs_set:Npn \__hook_tmp:w
            ####1 \tl_to_str:n { macro: } ####2 -> ####3 \s__hook_mark
          {
            ####1 \def \kerneltmpDoNotUse ####2
              {
                \str_if_eq:nnT {#3} { before }
                  {
                    \token_to_str:N \UseHookWithArguments {#2}
                      { \int_use:N \l__hook_patch_num_args_int }
                      \l__hook_tmpa_tl
                  }
                ####3
                \str_if_eq:nnT {#3} { after }
                  {
                    \token_to_str:N \UseHookWithArguments {#2}
                      { \int_use:N \l__hook_patch_num_args_int }
                      \l__hook_tmpa_tl
                  }
              }
          }
        \tl_set:Nx \exp_not:N \l__hook_tmpa_tl
          { \exp_not:N \__hook_tmp:w \token_to_meaning:N #1 \s__hook_mark }
      }
    \tl_rescan:nV { #4 \__hook_patch_required_catcodes: } \l__hook_tmpa_tl
    \cs_gset_eq:NN #1 \kerneltmpDoNotUse
    \__hook_update_hook_code:n {#2}
  }
\msg_new:nnnn { hooks } { cant-patch }
  {
    Generic~hooks~cannot~be~added~to~'#1'.
  }
  {
    You~tried~to~add~a~hook~to~'#1',~but~LaTeX~was~unable~to~
    patch~the~command~because~it~\__hook_unpatchable_cases:n {#2}.
  }
\cs_new:Npn \__hook_unpatchable_cases:n #1
  {
    \str_case:nn {#1}
      {
        { undef } { doesn't~exist }
        { macro } { is~not~a~macro }
        { expl3 } { is~a~private~expl3~macro }
        { retok } { can't~be~retokenized~cleanly }
      }
  }
\ExplSyntaxOff
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% From File: ltsockets.dtx
\ExplSyntaxOn
\bool_new:N \g__socket_debug_bool
\cs_new_eq:NN \__socket_debug:n \use_none:n
\cs_new_eq:NN \__socket_debug_term:n \use_none:n
\cs_new_protected:Npn \socket_debug_on:
  {
    \bool_gset_true:N \g__socket_debug_bool
    \__socket_debug_gset:
  }
\cs_new_protected:Npn \socket_debug_off:
  {
    \bool_gset_false:N \g__socket_debug_bool
    \__socket_debug_gset:
  }
\cs_new_protected:Npn \__socket_debug_gset:
  {
    \cs_gset_protected:Npx \__socket_debug:n ##1
      { \bool_if:NT \g__socket_debug_bool {##1} }
    \cs_gset_protected:Npx \__socket_debug_term:n ##1
      { \bool_if:NT \g__socket_debug_bool
        { \iow_term:x { ^^J [Sockets]~ ==>~ ##1} } }
  }
\cs_new_protected:Npn \socket_new:nn #1 #2 {
  \str_if_exist:cTF { l__socket_#1_plug_str }
      {
        \msg_error:nnn { socket } { already-declared } {#1}
      }
      {
        \int_if_zero:nTF \tex_currentgrouplevel:D
          {
            \str_new:c { l__socket_#1_plug_str }
            \seq_new:c { l__socket_#1_plugs_seq }
            \int_const:cn { c__socket_#1_args_int } {#2}
            \socket_new_plug:nnn {#1} { noop } {}
            \int_compare:nNnTF {#2} = 1
              {
                \socket_new_plug:nnn {#1} { identity } {##1}
                \socket_assign_plug:nn {#1} { identity }
              }
              { \socket_assign_plug:nn {#1} { noop } }
            \__socket_debug_term:n
              { Socket~ '#1'~ declared~ with~ #2~ input(s) }
          }
          {
            \msg_error:nn { socket } { not-top-level }
          }
      }
}
\cs_new_protected:Npn \socket_log:n #1 {
  \typeout{ Socket~ #1:}
  \str_if_exist:cTF { l__socket_#1_plug_str }
      {
        \typeout{ \@spaces number~ of~ inputs~ =~
                  \int_use:c { c__socket_#1_args_int } }
        \typeout{ \@spaces available~plugs~ =~
                  \seq_use:cnnn { l__socket_#1_plugs_seq }{,~}{,~}{,~} }
        \typeout{ \@spaces current~ plug~ =~
                  \str_use:c { l__socket_#1_plug_str } }
        \typeout{ \@spaces definition~ =~
                  \cs_meaning:c
                    { __socket_#1_plug_ \str_use:c { l__socket_#1_plug_str } :w } }
        \typeout{}
      }
      {
        \typeout { Socket~ is~ not~ declared! }
      }
}
\cs_new_protected:Npn \socket_show:n #1 {\socket_log:n {#1} \errmessage{}}
\cs_new_protected:Npn \socket_new_plug:nnn #1#2#3 {
  \str_if_exist:cTF { l__socket_#1_plug_str }
      {
        \cs_if_exist:cTF { __socket_#1_plug_#2:w }
          {
            \msg_error:nnnn { socket } { plug-already-declared } {#1} {#2}
          }
          {
            \cs_generate_from_arg_count:cNnn
              { __socket_#1_plug_#2:w }
              \cs_new:Npn
              { \int_use:c { c__socket_#1_args_int } }
              {#3}
            \seq_put_right:cn { l__socket_#1_plugs_seq } {#2}
            \__socket_debug_term:n
              { Plug~ '#2'~ for~ socket~ '#1'~ declared. }
          }
      }
      {
        \msg_error:nnn { socket } { undeclared } {#1}
      }
}
\cs_new_protected:Npn \socket_set_plug:nnn #1#2#3 {
  \str_if_exist:cTF { l__socket_#1_plug_str }
      {
        \cs_if_exist:cTF { __socket_#1_plug_#2:w }
          {
            \cs_generate_from_arg_count:cNnn
              { __socket_#1_plug_#2:w }
              \cs_set:Npn
              { \int_use:c { c__socket_#1_args_int } }
              {#3}
            \__socket_debug_term:n
              {  Plug~ '#2'~ for~ socket~ '#1'~ changed. }
          }
          {
            \msg_error:nnnn { socket } { plug-undeclared } {#1} {#2}
          }
      }
      {
        \msg_error:nnn { socket } { undeclared } {#1}
      }
}
\cs_new_protected:Npn \socket_assign_plug:nn #1 #2 {
  \str_if_exist:cTF { l__socket_#1_plug_str }
      {
        \cs_if_exist:cTF { __socket_#1_plug_#2:w }
          {
            \__socket_debug_term:n
              { Replacing~ plug~ '\str_use:c { l__socket_#1_plug_str }'~
                with~ '#2'~ in~ socket~ '#1'. }
            \str_set:cn { l__socket_#1_plug_str } {#2}
          }
          {
            \msg_error:nnnn { socket } { plug-undeclared } {#1} {#2}
          }
      }
      { \msg_error:nnn { socket } { undeclared } {#1} }
}
\cs_new_protected:Npn \socket_use:nw #1 {
  \__socket_debug_term:n
    { Socket~ '#1'~ containing~ plug~
      '\str_use:c { l__socket_#1_plug_str }'~ used. }
  \use:c { __socket_#1_plug_ \str_use:c { l__socket_#1_plug_str } :w }
}
\cs_new_eq:NN  \socket_use:n \socket_use:nw     % socket with no inputs
\cs_new_eq:NN  \socket_use:nn \socket_use:nw    % socket with one input
\cs_new_eq:NN  \socket_use:nnn \socket_use:nw   % socket with two inputs
\cs_new_eq:NN  \socket_use:nnnn \socket_use:nw  % socket with three inputs
\cs_new:Npn \socket_use_expandable:nw #1 {
  \use:c { __socket_#1_plug_ \str_use:c { l__socket_#1_plug_str } :w }
}
\cs_new_eq:NN  \socket_use_expandable:n \socket_use_expandable:nw     % socket with no inputs

\msg_new:nnnn { socket } { already-declared }
    { Socket~ '#1'~ already~ declared! }
    { A~ socket~ can~ only~ be~ declared~ once.~ The~ name~ '#1'~ is~
      already~ taken.~ Use~ \ShowSocket{#1}~ to~ see~ its~ definition. }

\msg_new:nnnn { socket } { undeclared }
    { Socket~ '#1'~ undeclared! }
    { You~ tried~ to~ use~ a~ socket~ that~ was~ not~ declared~ before. }

\msg_new:nnnn { socket } { not-top-level }
    { Sockets~ can~ only~ be~ declared~ at~ top-level! }
    { It~ is~ not~ allowed~ to~ declare~ sockets~ inside~ a~
      group.~ Move~ the~ declaration~ to~ the~ top-level. }
\msg_new:nnnn { socket } { plug-already-declared }
    { Plug~ '#2'~ for~ socket~ '#1'~ already~ declared! }
    { You~ can't~ change~ an~ existing~ plug~ with~ \NewSocketPlug~ and~ it~
      is~ normally~ not~ sensible~ to~ do~ so.~ Use~ the~ L3~ programming~
      layer~ function~ \socket_set_plug:nnn~ if~ you~ really~ have~ to. }

\msg_new:nnnn { socket } { plug-undeclared }
    { Plug~ '#2'~ for~ socket~ '#1'~ undeclared! }
    { The~ plug~ name~ is~ unknown.~ Is~ the~ name~ misspelled~ or~ did~ you~
      intend~ to~ assign~ it~ to~ a~ different~ socket? }
\prop_gput:Nnn \g_msg_module_type_prop { socket } { LaTeX }
\cs_new_eq:NN \NewSocket         \socket_new:nn
\cs_new_eq:NN \ShowSocket        \socket_show:n
\cs_new_eq:NN \LogSocket         \socket_log:n
\cs_new_eq:NN \NewSocketPlug     \socket_new_plug:nnn
\cs_new_eq:NN \AssignSocketPlug  \socket_assign_plug:nn
\cs_new_eq:NN \UseSocket         \socket_use:nw
\cs_new_eq:NN \DebugSocketsOn    \socket_debug_on:
\cs_new_eq:NN \DebugSocketsOff   \socket_debug_off:
\ExplSyntaxOff
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% From File: lttemplates.dtx
\message{templates,}
\ExplSyntaxOn
\tl_const:Nn \c__template_code_root_tl      { template~code~>~ }
\tl_const:Nn \c__template_defaults_root_tl  { template~defaults~>~ }
\tl_const:Nn \c__template_instances_root_tl { template~instance~>~  }
\tl_const:Nn \c__template_keytypes_root_tl  { template~key~types~>~ }
\tl_const:Nn \c__template_key_order_root_tl { template~key~order~>~ }
\tl_const:Nn \c__template_values_root_tl    { template~values~>~ }
\tl_const:Nn \c__template_vars_root_tl      { template~vars~>~ }
\seq_const_from_clist:Nn \c__template_keytypes_arg_seq
  { choice , function , instance }
\prop_new:N \g__template_type_prop
\tl_new:N \l__template_assignments_tl
\tl_new:N \l__template_default_tl
\bool_new:N \l__template_error_bool
\bool_new:N \l__template_global_bool
\tl_new:N \l__template_key_name_tl
\tl_new:N \l__template_keytype_tl
\tl_new:N \l__template_keytype_arg_tl
\tl_new:N \l__template_value_tl
\tl_new:N \l__template_var_tl
\prop_new:N \l__template_keytypes_prop
\seq_new:N \l__template_key_order_seq
\prop_new:N \l__template_values_prop
\prop_new:N \l__template_vars_prop
\clist_new:N \l__template_tmp_clist
\dim_new:N \l__template_tmp_dim
\int_new:N \l__template_tmp_int
\muskip_new:N \l__template_tmp_muskip
\skip_new:N \l__template_tmp_skip
\tl_new:N \l__template_tmp_tl
\scan_new:N \s__template_mark
\scan_new:N \s__template_stop
\quark_new:N \q__template_nil
\__kernel_quark_new_conditional:Nn \__template_quark_if_nil:N { F }
\cs_new_protected:Npn \__template_execute_if_arg_agree:nnT #1#2#3
  {
    \prop_get:NnN \g__template_type_prop {#1} \l__template_tmp_tl
    \int_compare:nNnTF {#2} = \l__template_tmp_tl
       {#3}
       {
         \msg_error:nneee { template } { argument-number-mismatch }
           {#1} { \l__template_tmp_tl } {#2}
       }
  }
\cs_new_protected:Npn \__template_execute_if_code_exist:nnT #1#2#3
  {
    \cs_if_exist:cTF { \c__template_code_root_tl #1 / #2 }
      {#3}
      { \msg_error:nnnn { template } { no-template-code } {#1} {#2} }
  }
\cs_new_protected:Npn \__template_execute_if_keytype_exist:nT #1#2
  {
    \cs_if_exist:cTF { __template_store_value_ #1 :n }
      {#2}
      { \msg_error:nnn { template } { unknown-keytype } {#1} }
  }
\cs_generate_variant:Nn \__template_execute_if_keytype_exist:nT { V }
\cs_new_protected:Npn \__template_execute_if_type_exist:nT #1#2
  {
    \prop_if_in:NnTF \g__template_type_prop {#1}
      {#2}
      { \msg_error:nnn { template } { unknown-type } {#1} }
  }
\cs_new_protected:Npn \__template_if_keys_exist:nnT #1#2#3
  {
    \cs_if_exist:cTF { \c__template_keytypes_root_tl #1 / #2 }
      {#3}
      { \msg_error:nnnn { template } { unknown-template } {#1} {#2} }
   }
\prg_new_conditional:Npnn \__template_if_key_value:n #1 { T , F , TF }
  {
    \str_if_eq:noTF { \KeyValue } { \tl_head:w #1 \q_nil \q_stop }
      \prg_return_true:
      \prg_return_false:
  }
\prg_generate_conditional_variant:Nnn \__template_if_key_value:n { V } { T , F , TF }
\prg_new_conditional:Npnn \__template_if_instance_exist:nn #1#2 { T, F, TF }
  {
    \cs_if_exist:cTF { \c__template_instances_root_tl #1 / #2 }
      \prg_return_true:
      \prg_return_false:
 }
\prg_new_conditional:Npnn \__template_if_use_template:n #1 { TF }
  {
    \str_if_eq:noTF { \UseTemplate } { \tl_head:w #1 \q_nil \q_stop }
      \prg_return_true:
      \prg_return_false:
}
\cs_new_protected:Npn \__template_store_defaults:nn #1#2
  {
    \debug_suspend:
    \prop_gclear_new:c { \c__template_defaults_root_tl #1 / #2  }
    \prop_gset_eq:cN { \c__template_defaults_root_tl #1 / #2 }
      \l__template_values_prop
    \debug_resume:
  }
\cs_new_protected:Npn \__template_store_keytypes:nn #1#2
  {
    \debug_suspend:
    \prop_if_exist:cTF { \c__template_keytypes_root_tl #1 / #2 }
      {
        \msg_info:nnnn { template } { declare-template-interface } {#1} {#2}
        \prop_gclear:c { \c__template_keytypes_root_tl #1 / #2 }
      }
      { \prop_new:c { \c__template_keytypes_root_tl #1 / #2 } }
    \prop_gset_eq:cN { \c__template_keytypes_root_tl #1 / #2 }
      \l__template_keytypes_prop
    \seq_gclear_new:c { \c__template_key_order_root_tl #1 / #2 }
    \seq_gset_eq:cN { \c__template_key_order_root_tl #1 / #2 }
      \l__template_key_order_seq
    \debug_resume:
  }
\cs_new_protected:Npn \__template_store_values:nn #1#2
  {
    \debug_suspend:
    \prop_clear_new:c { \c__template_values_root_tl #1 / #2 }
    \prop_set_eq:cN { \c__template_values_root_tl #1 / #2 }
      \l__template_values_prop
    \debug_resume:
  }
\cs_new_protected:Npn \__template_store_vars:nn #1#2
  {
   \debug_suspend:
    \prop_gclear_new:c { \c__template_vars_root_tl #1 / #2 }
    \prop_gset_eq:cN { \c__template_vars_root_tl #1 / #2 }
      \l__template_vars_prop
    \debug_resume:
  }
\cs_new_protected:Npn \__template_recover_defaults:nn #1#2
  {
    \prop_if_exist:cTF
      { \c__template_defaults_root_tl #1 / #2 }
      {
        \prop_set_eq:Nc \l__template_values_prop
          { \c__template_defaults_root_tl #1 / #2 }
      }
      { \prop_clear:N \l__template_values_prop }
  }
\cs_new_protected:Npn \__template_recover_keytypes:nn #1#2
  {
    \prop_if_exist:cTF
      { \c__template_keytypes_root_tl #1 / #2 }
      {
        \prop_set_eq:Nc \l__template_keytypes_prop
          { \c__template_keytypes_root_tl #1 / #2 }
      }
      { \prop_clear:N \l__template_keytypes_prop }
    \seq_if_exist:cTF { \c__template_key_order_root_tl #1 / #2 }
      {
        \seq_set_eq:Nc \l__template_key_order_seq
          { \c__template_key_order_root_tl #1 / #2 }
      }
      { \seq_clear:N \l__template_key_order_seq }
  }
\cs_new_protected:Npn \__template_recover_values:nn #1#2
  {
    \prop_if_exist:cTF
      { \c__template_values_root_tl #1 / #2 }
      {
        \prop_set_eq:Nc \l__template_values_prop
          { \c__template_values_root_tl #1 / #2 }
      }
      { \prop_clear:N \l__template_values_prop }
  }
\cs_new_protected:Npn \__template_recover_vars:nn #1#2
  {
    \prop_if_exist:cTF
      { \c__template_vars_root_tl #1 / #2 }
      {
        \prop_set_eq:Nc \l__template_vars_prop
          { \c__template_vars_root_tl #1 / #2 }
      }
      { \prop_clear:N \l__template_vars_prop }
  }
\cs_new_protected:Npn \__template_define_type:nn #1#2
  {
    \prop_if_in:NnTF \g__template_type_prop {#1}
      { \msg_error:nnn { template } { type-already-defined } {#1} }
      { \__template_declare_type:nn {#1} {#2} }
  }
\cs_new_protected:Npn \__template_declare_type:nn #1#2
  {
    \int_set:Nn \l__template_tmp_int {#2}
    \int_compare:nTF { 0 <= \l__template_tmp_int <= 9 }
      {
        \msg_info:nnnV { template } { declare-type }
          {#1} \l__template_tmp_int
        \prop_gput:NnV \g__template_type_prop {#1}
          \l__template_tmp_int
      }
      {
        \msg_error:nnnV { template } { bad-number-of-arguments }
          {#1} \l__template_tmp_int
      }
  }
\cs_new_protected:Npn \__template_declare_template_keys:nnnn #1#2#3#4
  {
    \__template_execute_if_type_exist:nT {#1}
      {
        \__template_execute_if_arg_agree:nnT {#1} {#3}
          {
            \prop_clear:N \l__template_values_prop
            \prop_clear:N \l__template_keytypes_prop
            \seq_clear:N \l__template_key_order_seq
            \keyval_parse:NNn
              \__template_parse_keys_elt:n \__template_parse_keys_elt:nn {#4}
            \__template_store_defaults:nn {#1} {#2}
            \__template_store_keytypes:nn {#1} {#2}
          }
      }
  }
\cs_new_protected:Npn \__template_parse_keys_elt:n #1
  {
    \__template_split_keytype:n {#1}
    \bool_if:NF \l__template_error_bool
      {
        \__template_execute_if_keytype_exist:VT \l__template_keytype_tl
          {
            \seq_map_function:NN \c__template_keytypes_arg_seq
              \__template_parse_keys_elt_aux:n
            \bool_if:NF \l__template_error_bool
              {
                \seq_if_in:NoTF \l__template_key_order_seq
                  \l__template_key_name_tl
                  {
                    \msg_error:nnV { template } { duplicate-key-interface }
                      \l__template_key_name_tl
                  }
                  { \__template_parse_keys_elt_aux: }
              }
          }
      }
  }
\cs_new_protected:Npn \__template_parse_keys_elt_aux:n #1
  {
    \str_if_eq:VnT \l__template_keytype_tl {#1}
      {
        \tl_if_empty:NT \l__template_keytype_arg_tl
          {
            \msg_error:nnn { template } { keytype-requires-argument } {#1}
            \bool_set_true:N \l__template_error_bool
            \seq_map_break:
          }
      }
  }
\cs_new_protected:Npn \__template_parse_keys_elt_aux:
  {
    \tl_set:Ne \l__template_tmp_tl
      {
        \l__template_keytype_tl
        \tl_if_empty:NF \l__template_keytype_arg_tl
          { { \l__template_keytype_arg_tl } }
      }
    \prop_put:NVV \l__template_keytypes_prop \l__template_key_name_tl
      \l__template_tmp_tl
    \seq_put_right:NV \l__template_key_order_seq \l__template_key_name_tl
    \str_if_eq:VnT \l__template_keytype_tl { choice }
      {
        \clist_if_in:NnT \l__template_keytype_arg_tl { unknown }
          { \msg_error:nn { template } { choice-unknown-reserved } }
      }
  }
\cs_new_protected:Npn \__template_parse_keys_elt:nn #1#2
  {
    \__template_parse_keys_elt:n {#1}
    \use:c { __template_store_value_ \l__template_keytype_tl :n } {#2}
  }
\cs_new_protected:Npe \__template_split_keytype:n #1
  {
    \exp_not:N \bool_set_false:N \exp_not:N \l__template_error_bool
    \tl_set:Nn \exp_not:N \l__template_tmp_tl {#1}
    \tl_replace_all:Nnn \exp_not:N \l__template_tmp_tl { : } { \token_to_str:N : }
    \tl_if_in:VnTF \exp_not:N \l__template_tmp_tl { \token_to_str:N : }
      {
        \exp_not:n
          {
            \tl_clear:N \l__template_key_name_tl
            \exp_after:wN \__template_split_keytype_aux:w
              \l__template_tmp_tl \s__template_stop
          }
      }
      {
        \exp_not:N \bool_set_true:N \exp_not:N \l__template_error_bool
        \msg_error:nnn { template } { missing-keytype } {#1}
      }
  }
\use:e
  {
    \cs_new_protected:Npn \exp_not:N \__template_split_keytype_aux:w
      #1 \token_to_str:N : #2 \s__template_stop
      {
        \tl_put_right:Ne \exp_not:N \l__template_key_name_tl
          {
            \exp_not:N \tl_trim_spaces:e
              { \exp_not:N \tl_to_str:n {#1} }
          }
        \tl_if_in:nnTF {#2} { \token_to_str:N : }
          {
            \tl_put_right:Nn \exp_not:N \l__template_key_name_tl
              { \token_to_str:N : }
            \exp_not:N \__template_split_keytype_aux:w #2 \s__template_stop
          }
          {
            \exp_not:N \tl_if_empty:NTF \exp_not:N \l__template_key_name_tl
              {
                \msg_error:nnn { template } { empty-key-name }
                  { \token_to_str:N : #2 }
              }
              { \exp_not:N \__template_split_keytype_arg:n {#2} }
          }
      }
  }
\cs_new_protected:Npn \__template_split_keytype_arg:n #1
  {
    \tl_set:Ne \l__template_keytype_tl { \tl_trim_spaces:n {#1} }
    \tl_clear:N \l__template_keytype_arg_tl
    \cs_set_protected:Npn \__template_split_keytype_arg_aux:n ##1
      {
        \tl_if_in:nnT {#1} {##1}
          {
            \cs_set:Npn \__template_split_keytype_arg_aux:w
              ####1 ##1 ####2 \s__template_stop
              {
                \tl_if_blank:nT {####1}
                  {
                    \tl_set:Ne \l__template_keytype_tl
                      { \tl_trim_spaces:n {##1} }
                    \tl_if_blank:nF {####2}
                      {
                        \tl_set:Ne \l__template_keytype_arg_tl
                          { \use:n ####2 }
                      }
                    \seq_map_break:
                  }
              }
            \__template_split_keytype_arg_aux:w #1 \s__template_stop
          }
      }
    \seq_map_function:NN \c__template_keytypes_arg_seq
      \__template_split_keytype_arg_aux:n
  }
\cs_generate_variant:Nn \__template_split_keytype_arg:n { V }
\cs_new:Npn \__template_split_keytype_arg_aux:n #1 { }
\cs_new:Npn \__template_split_keytype_arg_aux:w #1 \s__template_stop { }
\cs_new_protected:Npn \__template_store_value_boolean:n #1
  { \prop_put:Non \l__template_values_prop \l__template_key_name_tl {#1} }
\cs_new_protected:Npn \__template_store_value:n #1
  { \prop_put:Non \l__template_values_prop \l__template_key_name_tl {#1} }
\cs_new_eq:NN \__template_store_value_choice:n    \__template_store_value:n
\cs_new_eq:NN \__template_store_value_function:n  \__template_store_value:n
\cs_new_eq:NN \__template_store_value_instance:n  \__template_store_value:n
\cs_new_protected:Npn \__template_store_value_aux:Nn #1#2
  { \prop_put:Non \l__template_values_prop \l__template_key_name_tl {#2} }
\cs_new_protected:Npn \__template_store_value_integer:n
  { \__template_store_value_aux:Nn \int_eval:n }
\cs_new_protected:Npn \__template_store_value_length:n
  { \__template_store_value_aux:Nn \dim_eval:n }
\cs_new_protected:Npn \__template_store_value_muskip:n
  { \__template_store_value_aux:Nn \muskip_eval:n }
\cs_new_protected:Npn \__template_store_value_real:n
  { \__template_store_value_aux:Nn \fp_eval:n }
\cs_new_protected:Npn \__template_store_value_skip:n
  { \__template_store_value_aux:Nn \skip_eval:n }
\cs_new_protected:Npn \__template_store_value_tokenlist:n
  { \__template_store_value_aux:Nn \use:n }
\cs_new_eq:NN \__template_store_value_commalist:n \__template_store_value_tokenlist:n
\cs_new_protected:Npn \__template_declare_template_code:nnnnn #1#2#3#4#5
  {
    \__template_execute_if_type_exist:nT {#1}
      {
        \__template_execute_if_arg_agree:nnT {#1} {#3}
          {
            \__template_if_keys_exist:nnT {#1} {#2}
              {
                \__template_store_key_implementation:nnn {#1} {#2} {#4}
                \regex_match:nnTF { \c { AssignTemplateKeys } } {#5}
                  { \__template_declare_template_code:nnnn {#1} {#2} {#3} {#5} }
                  {
                    \__template_declare_template_code:nnnn
                      {#1} {#2} {#3} { \AssignTemplateKeys #5 }
                  }
              }
           }
      }
   }
\cs_new_protected:Npn \__template_declare_template_code:nnnn #1#2#3#4
  {
    \cs_if_exist:cT { \c__template_code_root_tl #1 / #2 }
      { \msg_info:nnnn { template } { declare-template-code } {#1} {#2} }
    \cs_generate_from_arg_count:cNnn
      { \c__template_code_root_tl #1 / #2 }
      \cs_gset_protected:Npn {#3} {#4}
  }
\cs_new_protected:Npn \__template_store_key_implementation:nnn #1#2#3
  {
    \__template_recover_defaults:nn {#1} {#2}
    \__template_recover_keytypes:nn {#1} {#2}
    \prop_clear:N \l__template_vars_prop
    \keyval_parse:nnn
      { \__template_parse_vars_elt:n } { \__template_parse_vars_elt:nnn { #1 / #2 } } {#3}
    \__template_store_vars:nn {#1} {#2}
    \prop_map_inline:Nn \l__template_keytypes_prop
      { \msg_error:nnnnn { template } { key-not-implemented } {##1} {#2} {#1} }
  }
\cs_new_protected:Npn \__template_parse_vars_elt:n #1
  { \msg_error:nnn { template } { key-no-variable } {#1} }
\cs_new_protected:Npn \__template_parse_vars_elt:nnn #1#2#3
 {
    \tl_set:Ne \l__template_key_name_tl
      { \tl_trim_spaces:e { \tl_to_str:n {#2} } }
    \prop_get:NVNTF \l__template_keytypes_prop
      \l__template_key_name_tl
      \l__template_keytype_tl
      {
        \__template_split_keytype_arg:V \l__template_keytype_tl
        \__template_parse_vars_elt_aux:nn {#1} {#3}
        \prop_remove:NV \l__template_keytypes_prop \l__template_key_name_tl
      }
      { \msg_error:nnn { template } { unknown-key } {#2} }
  }
\cs_new_protected:Npn \__template_parse_vars_elt_aux:nn #1#2
  {
    \__template_parse_vars_elt_aux:nw {#1} #2 global global \s__template_stop
  }
\cs_new_protected:Npn \__template_parse_vars_elt_aux:nw
  #1#2 global #3 global #4 \s__template_stop
  {
    \tl_if_blank:nTF {#4}
      { \__template_parse_vars_elt_aux:nnn {#1} { } {#2} }
      {
        \tl_if_blank:nTF {#2}
          {
            \__template_parse_vars_elt_aux:nne
              {#1} { global } { \tl_trim_spaces:n {#3} }
          }
          { \msg_error:nnn { template } { bad-variable } { #2 global #3 } }
      }
  }
\cs_new_protected:Npn \__template_parse_vars_elt_aux:nnn #1#2#3
  {
    \str_case:VnF \l__template_keytype_tl
      {
        { choice } { \__template_implement_choices:nn {#1} {#3} }
        { function }
          {
            \cs_if_exist:NF #3
              { \cs_new:Npn #3 { } }
            \__template_parse_vars_elt_key:nn {#1}
              {
                .code:n =
                  {
                    \cs_generate_from_arg_count:NNnn
                      \exp_not:N #3
                      \exp_not:c
                        { cs_ \str_if_eq:nnT {#1} { global } { g } set:Npn }
                      { \exp_not:V \l__template_keytype_arg_tl }
                      {##1}
                  }
              }
            \prop_put:NVn \l__template_vars_prop
              \l__template_key_name_tl {#2#3}
          }
        { instance }
          {
            \__template_parse_vars_elt_key:nn {#1}
              {
                .code:n =
                  {
                    \exp_not:c
                      { cs_ \str_if_eq:nnT {#1} { global } { g } set:Npn }
                      \exp_not:N #3 { \UseInstance {##1} }
                  }
              }
            \prop_put:NVn \l__template_vars_prop
              \l__template_key_name_tl {#2#3}
          }
      }
      {
        \tl_if_single:nTF {#3}
          {
            \cs_if_exist:NF #3
              { \use:c { \__template_map_var_type: _new:N } #3 }
            \__template_parse_vars_elt_key:nn {#1}
              {
                . \__template_map_var_type:
                  _ \str_if_eq:nnT {#1} { global } { g } set:N
                    = \exp_not:N #3
              }
            \prop_put:NVn \l__template_vars_prop
              \l__template_key_name_tl {#2#3}
          }
          { \msg_error:nnn { template } { bad-variable } {#2#3} }
      }
  }
\cs_generate_variant:Nn \__template_parse_vars_elt_aux:nnn { nne }
\cs_new_protected:Npn \__template_parse_vars_elt_key:nn #1#2
  {
    \keys_define:ne { template / #1 }
      { \l__template_key_name_tl #2 }
  }
\cs_new:Npn \__template_map_var_type:
  {
    \str_case:Vn \l__template_keytype_tl
      {
        { boolean }   { bool }
        { commalist } { clist }
        { integer }   { int }
        { length }    { dim }
        { muskip }    { muskip }
        { real }      { fp }
        { skip }      { skip }
        { tokenlist } { tl }
      }
  }
\cs_new_protected:Npn \__template_implement_choices:nn #1#2
  {
    \clist_set:NV \l__template_tmp_clist \l__template_keytype_arg_tl
    \prop_put:NVn \l__template_vars_prop \l__template_key_name_tl { }
    \keys_define:ne { template / #1 } { \l__template_key_name_tl .choice: }
    \keyval_parse:nnn
      { \__template_implement_choice_elt:n }
      { \__template_implement_choice_elt:nnn {#1} }
      {#2}
    \prop_get:NVNT \l__template_values_prop \l__template_key_name_tl
      \l__template_tmp_tl
      { \__template_implement_choices_default: }
    \clist_if_empty:NF \l__template_tmp_clist
      {
        \clist_map_inline:Nn \l__template_tmp_clist
          { \msg_error:nnn { template } { choice-not-implemented } {##1} }
      }
  }
\cs_new_protected:Npn \__template_implement_choices_default:
  {
    \tl_set:Ne \l__template_tmp_tl
      { \l__template_key_name_tl \c_space_tl \l__template_tmp_tl }
    \prop_if_in:NVF \l__template_vars_prop \l__template_tmp_tl
      {
        \tl_set:Ne \l__template_tmp_tl
          { \l__template_key_name_tl \c_space_tl \l__template_tmp_tl }
        \prop_if_in:NVF \l__template_vars_prop \l__template_tmp_tl
          {
            \prop_get:NVN \l__template_keytypes_prop \l__template_key_name_tl
              \l__template_tmp_tl
            \__template_split_keytype_arg:V \l__template_tmp_tl
            \prop_get:NVN \l__template_values_prop \l__template_key_name_tl
              \l__template_tmp_tl
            \msg_error:nnVV { template } { unknown-default-choice }
              \l__template_key_name_tl
              \l__template_key_name_tl
          }
      }
  }
\cs_new_protected:Npn \__template_implement_choice_elt:nnn #1#2#3
  {
    \clist_if_empty:NTF \l__template_tmp_clist
      {
        \str_if_eq:nnTF {#2} { unknown }
          { \__template_implement_choice_elt_aux:nnn {#1} {#2} {#3} }
          { \__template_implement_choice_elt_aux:n {#2} }
      }
      {
        \clist_if_in:NnTF \l__template_tmp_clist {#2}
          {
            \clist_remove_all:Nn \l__template_tmp_clist {#2}
            \__template_implement_choice_elt_aux:nnn {#1} {#2} {#3}
          }
          { \__template_implement_choice_elt_aux:n {#2} }
      }
  }
\cs_new_protected:Npn \__template_implement_choice_elt_aux:n #1
  {
    \prop_get:NVN \l__template_keytypes_prop \l__template_key_name_tl
      \l__template_tmp_tl
    \__template_split_keytype_arg:V \l__template_tmp_tl
    \msg_error:nnVn { template } { unknown-choice } \l__template_key_name_tl {#1}
  }
\cs_new_protected:Npn \__template_implement_choice_elt_aux:nnn #1#2#3
  {
    \keys_define:ne { template / #1 }
      { \l__template_key_name_tl / #2 .code:n = { \exp_not:n {#3} } }
    \tl_set:Ne \l__template_tmp_tl
      { \l__template_key_name_tl \c_space_tl #2 }
    \prop_put:NVn \l__template_vars_prop \l__template_tmp_tl {#3}
  }
\cs_new_protected:Npn \__template_implement_choice_elt:n #1
  {
    \msg_error:nnVn { template } { choice-requires-code }
      \l__template_key_name_tl {#1}
  }
\cs_new_protected:Npn \__template_edit_defaults:nnn #1#2#3
  {
    \__template_if_keys_exist:nnT {#1} {#2}
      {
        \__template_recover_defaults:nn {#1} {#2}
        \__template_parse_values:nnn {#1} {#2} {#3}
        \__template_store_defaults:nn {#1} {#2}
      }
  }
\cs_new_protected:Npn \__template_parse_values:nnn #1#2#3
  {
    \__template_recover_keytypes:nn {#1} {#2}
    \keyval_parse:NNn
      \__template_parse_values_elt:n \__template_parse_values_elt:nn {#3}
  }
\cs_new_protected:Npn \__template_parse_values_elt:n #1
  {
    \bool_set_true:N \l__template_error_bool
    \msg_error:nnn { template } { key-no-value } {#1}
  }
\cs_new_protected:Npn \__template_parse_values_elt:nn #1#2
  {
    \tl_set:Ne \l__template_key_name_tl
      { \tl_trim_spaces:e { \tl_to_str:n {#1} } }
    \prop_get:NVNTF \l__template_keytypes_prop \l__template_key_name_tl
      \l__template_tmp_tl
      { \__template_parse_values_elt_aux:n {#2} }
      { \msg_error:nnV { template } { unknown-key } \l__template_key_name_tl }
  }
\cs_new_protected:Npn \__template_parse_values_elt_aux:n #1
  {
    \__template_split_keytype_arg:V \l__template_tmp_tl
    \use:c { __template_store_value_ \l__template_keytype_tl :n } {#1}
  }
\cs_new_protected:Npn \__template_template_set_eq:nnn #1#2#3
  {
    \__template_recover_defaults:nn {#1} {#3}
    \__template_store_defaults:nn {#1} {#2}
    \__template_recover_keytypes:nn {#1} {#3}
    \__template_store_keytypes:nn {#1} {#2}
    \__template_recover_vars:nn {#1} {#3}
    \__template_store_vars:nn {#1} {#2}
    \cs_if_exist:cT { \c__template_code_root_tl #1 / #2 }
      { \msg_info:nnnn { template } { declare-template-code } {#1} {#2} }
    \cs_gset_eq:cc { \c__template_code_root_tl #1 / #2 }
      { \c__template_code_root_tl #1 / #3 }
  }
\cs_new_protected:Npn \__template_declare_instance:nnnn #1#2#3#4
  {
    \__template_execute_if_code_exist:nnT {#1} {#2}
      {
        \__template_recover_defaults:nn {#1} {#2}
        \__template_recover_vars:nn {#1} {#2}
        \__template_declare_instance_aux:nnnn {#1} {#2} {#3} {#4}
      }
  }
\cs_new_protected:Npn \__template_declare_instance_aux:nnnn #1#2#3#4
  {
    \bool_set_false:N \l__template_error_bool
    \__template_parse_values:nnn {#1} {#2} {#4}
    \bool_if:NF \l__template_error_bool
      {
        \prop_put:Nnn \l__template_values_prop { from~template } {#2}
        \__template_store_values:nn {#1} {#3}
        \__template_convert_to_assignments:
        \cs_if_exist:cT { \c__template_instances_root_tl #1 / #3 }
          { \msg_info:nnnn { template } { declare-instance } {#3} {#1} }
        \cs_set_protected:cpe { \c__template_instances_root_tl #1 / #3 }
          {
            \exp_not:N \__template_assignments_push:n
              { \exp_not:V \l__template_assignments_tl }
            \exp_not:c { \c__template_code_root_tl #1 / #2 }
          }
      }
  }
\cs_new_protected:Npn \__template_instance_set_eq:nnn #1#2#3
  {
    \__template_if_instance_exist:nnTF {#1} {#3}
      {
        \__template_recover_values:nn {#1} {#3}
        \__template_store_values:nn {#1} {#2}
        \cs_if_exist:cT { \c__template_instances_root_tl #1 / #2 }
          { \msg_info:nnnn { template } { declare-instance } {#2} {#1} }
        \cs_set_eq:cc { \c__template_instances_root_tl #1 / #2 }
          { \c__template_instances_root_tl #1 / #3 }
      }
      { \msg_error:nnnn { template } { unknown-instance } {#1} {#3} }
  }
\cs_new_protected:Npn \__template_edit_instance:nnn #1#2#3
  {
    \__template_if_instance_exist:nnTF {#1} {#2}
      {
        \__template_recover_values:nn {#1}  {#2}
        \prop_get:NnN \l__template_values_prop { from~template }
          \l__template_tmp_tl
        \__template_edit_instance_aux:nVnn
          {#1} \l__template_tmp_tl {#2} {#3}
      }
      { \msg_error:nnnn { template } { unknown-instance } {#1} {#2} }
  }
\cs_new_protected:Npn \__template_edit_instance_aux:nnnn #1#2#3#4
  {
    \__template_recover_vars:nn {#1} {#2}
    \__template_declare_instance_aux:nnnn {#1} {#2} {#3} {#4}
  }
\cs_generate_variant:Nn \__template_edit_instance_aux:nnnn { nV }
\cs_new_protected:Npn \__template_convert_to_assignments:
  {
    \tl_clear:N \l__template_assignments_tl
    \seq_map_function:NN \l__template_key_order_seq
      \__template_convert_to_assignments_aux:n
  }
\cs_new_protected:Npn \__template_convert_to_assignments_aux:n #1
  {
    \prop_get:NnN \l__template_keytypes_prop {#1} \l__template_tmp_tl
    \__template_convert_to_assignments_aux:nV {#1} \l__template_tmp_tl
  }
\cs_new_protected:Npn \__template_convert_to_assignments_aux:nn #1#2
  {
    \prop_get:NnNT \l__template_values_prop {#1} \l__template_value_tl
      {
        \prop_get:NnNTF \l__template_vars_prop {#1} \l__template_var_tl
          {
            \__template_split_keytype_arg:n {#2}
            \str_if_eq:VnF \l__template_keytype_tl { choice }
              {
                \str_if_eq:VnF \l__template_keytype_tl { code }
                  { \__template_find_global: }
              }
            \tl_set:Nn \l__template_key_name_tl {#1}
            \cs_if_exist_use:cF { __template_assign_ \l__template_keytype_tl : }
              { \__template_assign_variable: }
          }
          { \msg_error:nnn { template } { unknown-attribute } {#1} }
      }
  }
\cs_generate_variant:Nn \__template_convert_to_assignments_aux:nn { nV }
\cs_new_protected:Npn \__template_find_global:
  {
    \bool_set_false:N \l__template_global_bool
    \tl_if_in:onT \l__template_var_tl { global }
      {
        \exp_after:wN \__template_find_global_aux:w \l__template_var_tl \s__template_stop
      }
  }
\cs_new_protected:Npn \__template_find_global_aux:w  #1 global #2 \s__template_stop
  {
    \tl_set:Nn \l__template_var_tl {#2}
    \bool_set_true:N \l__template_global_bool
  }
\cs_new_protected:Npn \__template_use_template:nnn #1#2#3
  {
    \__template_execute_if_code_exist:nnT {#1} {#2}
      {
        \__template_recover_defaults:nn {#1} {#2}
        \__template_recover_vars:nn {#1} {#2}
        \__template_parse_values:nnn {#1} {#2} {#3}
        \__template_convert_to_assignments:
        \use:c { \c__template_code_root_tl #1 / #2  }
      }
  }
\cs_new_protected:Npn \__template_assign_boolean:
  {
    \bool_if:NTF \l__template_global_bool
      { \__template_assign_boolean_aux:n { bool_gset } }
      { \__template_assign_boolean_aux:n { bool_set } }
  }
\cs_new_protected:Npn \__template_assign_boolean_aux:n #1
  {
    \__template_if_key_value:VTF \l__template_value_tl
      {
        \__template_key_to_value:
        \tl_put_right:Ne \l__template_assignments_tl
          {
            \exp_not:c { #1 _eq:NN }
            \exp_not:V \l__template_var_tl
            \exp_not:V \l__template_value_tl
          }
      }
      {
        \tl_put_right:Ne \l__template_assignments_tl
          {
            \exp_not:c { #1 _ \l__template_value_tl :N }
            \exp_not:V \l__template_var_tl
          }
      }
  }
\cs_new_protected:Npn \__template_assign_choice:
  {
    \__template_assign_choice_aux:eF
      { \l__template_key_name_tl \c_space_tl \l__template_value_tl }
      {
        \__template_assign_choice_aux:eF
          { \l__template_key_name_tl \c_space_tl unknown }
          {
            \prop_get:NVN \l__template_keytypes_prop \l__template_key_name_tl
              \l__template_tmp_tl
            \__template_split_keytype_arg:V \l__template_tmp_tl
            \msg_error:nnVV { template } { unknown-choice }
              \l__template_key_name_tl
              \l__template_value_tl
          }
      }
  }
\cs_new_protected:Npn \__template_assign_choice_aux:nF #1
  {
    \prop_get:NnNTF \l__template_vars_prop {#1} \l__template_tmp_tl
      { \tl_put_right:NV \l__template_assignments_tl \l__template_tmp_tl }
  }
\cs_generate_variant:Nn \__template_assign_choice_aux:nF { e }
\cs_new_protected:Npn \__template_assign_function:
  {
    \bool_if:NTF \l__template_global_bool
      { \__template_assign_function_aux:N \cs_gset:Npn }
      { \__template_assign_function_aux:N \cs_set:Npn  }
  }
\cs_new_protected:Npn \__template_assign_function_aux:N #1
  {
    \tl_put_right:Ne \l__template_assignments_tl
      {
        \cs_generate_from_arg_count:NNnn
          \exp_not:V \l__template_var_tl
          \exp_not:N #1
          { \exp_not:V \l__template_keytype_arg_tl }
          { \exp_not:V \l__template_value_tl }
      }
  }
\cs_new_protected:Npn \__template_assign_instance:
  {
    \bool_if:NTF \l__template_global_bool
      { \__template_assign_instance_aux:N \cs_gset_protected:Npn }
      { \__template_assign_instance_aux:N \cs_set_protected:Npn  }
  }
\cs_new_protected:Npn \__template_assign_instance_aux:N #1
  {
    \tl_put_right:Ne \l__template_assignments_tl
      {
        \exp_not:N #1 \exp_not:V \l__template_var_tl
          {
            \__template_use_instance:nn
              { \exp_not:V \l__template_keytype_arg_tl }
              { \exp_not:V \l__template_value_tl }
          }
      }
  }
\cs_new_protected:Npn \__template_assign_variable:
  {
    \exp_args:Ne \__template_assign_variable:n
      {
        \__template_map_var_type:
        _
        \bool_if:NT \l__template_global_bool { g }
        set:N
      }
  }
\cs_new_protected:Npn \__template_assign_variable:n #1
  {
    \__template_if_key_value:VTF \l__template_value_tl
      {
        \__template_key_to_value:
        \tl_put_right:Ne \l__template_assignments_tl
          {
            \exp_not:c { #1 V } \exp_not:V \l__template_var_tl
             \exp_not:V \l__template_value_tl
          }
      }
      {
        \tl_put_right:Ne \l__template_assignments_tl
          {
            \exp_not:c { #1 n } \exp_not:V \l__template_var_tl
             { \exp_not:V \l__template_value_tl }
          }
      }
  }
\cs_new_protected:Npn \__template_key_to_value:
  { \exp_after:wN \__template_key_to_value_auxi:w \l__template_value_tl }
\cs_new_protected:Npn \__template_key_to_value_auxi:w \KeyValue #1
  {
    \tl_set:Ne \l__template_tmp_tl { \tl_trim_spaces:e { \tl_to_str:n {#1} } }
    \prop_get:NVNTF \l__template_vars_prop \l__template_tmp_tl
      \l__template_value_tl
      {
        \exp_after:wN \__template_key_to_value_auxii:w \l__template_value_tl
          \s__template_mark global \q__template_nil \s__template_stop
      }
      { \msg_error:nnV { template } { unknown-attribute } \l__template_tmp_tl }
  }
\cs_new_protected:Npn \__template_key_to_value_auxii:w #1 global #2#3 \s__template_stop
  {
    \__template_quark_if_nil:NF #2
      { \tl_set:Nn \l__template_value_tl {#2} }
  }
\cs_new_protected:Npn \__template_use_instance:nn #1#2
  {
    \__template_if_use_template:nTF {#2}
      { \__template_use_instance_aux:nNnnn {#1} #2 }
      { \__template_use_instance_aux:nn {#1} {#2} }
  }
\cs_new_protected:Npn \__template_use_instance_aux:nNnnn #1#2#3#4#5
  {
    \str_if_eq:nnTF {#1} {#3}
      { \__template_use_template:nnn {#3} {#4} {#5} }
      { \msg_error:nnnn { template } { type-mismatch } {#1} {#3} }
}
\cs_new_protected:Npn \__template_use_instance_aux:nn #1#2
  {
    \__template_if_instance_exist:nnTF {#1} {#2}
      { \use:c { \c__template_instances_root_tl #1 / #2 } }
      { \msg_error:nnnn { template } { unknown-instance } {#1} {#2} }
  }
\cs_new:Npn \__template_assignments_pop: { \l__template_assignments_tl }
\cs_new_protected:Npn \__template_assignments_push:n #1
  { \tl_set:Nn \l__template_assignments_tl {#1} }
\cs_new_protected:Npn \__template_show_code:nn #1#2
  { \cs_show:c { \c__template_code_root_tl #1 / #2 } }
\cs_new_protected:Npn \__template_show_defaults:nn #1#2
  {
    \__template_if_keys_exist:nnT {#1} {#2}
      {
        \__template_recover_defaults:nn {#1} {#2}
        \__template_show:Nnnn \l__template_values_prop
          {#1} {#2} { default~values }
      }
  }
\cs_new_protected:Npn \__template_show_keytypes:nn #1#2
  {
    \__template_if_keys_exist:nnT {#1} {#2}
      {
        \__template_recover_keytypes:nn {#1} {#2}
        \__template_show:Nnnn \l__template_keytypes_prop
          {#1} {#2} { interface }
      }
  }
\cs_new_protected:Npn \__template_show_vars:nn #1#2
  {
     \__template_execute_if_code_exist:nnT {#1} {#2}
      {
        \__template_recover_vars:nn {#1} {#2}
        \__template_show:Nnnn \l__template_vars_prop
          {#1} {#2} { variable~mapping }
      }
  }
\cs_new_protected:Npn \__template_show:Nnnn #1#2#3#4
  {
    \msg_show:nneeee { template } { show-attribute }
      { \tl_to_str:n {#2} }
      { \tl_to_str:n {#3} }
      { \tl_to_str:n {#4} }
      { \prop_map_function:NN #1 \msg_show_item_unbraced:nn }
  }
\cs_new_protected:Npn \__template_show_values:nn #1#2
  {
    \__template_if_instance_exist:nnT {#1} {#2}
      {
        \__template_recover_values:nn {#1} {#2}
        \msg_show:nneee { template } { show-values }
          { \tl_to_str:n {#1} }
          { \tl_to_str:n {#2} }
          {
            \prop_map_function:NN \l__template_values_prop
              \msg_show_item_unbraced:nn
          }
      }
  }
\msg_new:nnnn { template } { argument-number-mismatch }
  { Template~type~'#1'~takes~#2~argument(s). }
  {
    Templates~of~type~'#1'~require~#2~argument(s).\\
    You~have~tried~to~make~a~template~for~'#1'~
    with~#3~argument(s),~which~is~not~possible:~
    the~number~of~arguments~must~agree.
  }
\msg_new:nnnn { template } { bad-number-of-arguments }
  { Bad~number~of~arguments~for~template~type~'#1'. }
  {
    A~template~may~accept~between~0~and~9~arguments.\\
    You~asked~to~use~#2~arguments:~this~is~not~supported.
  }
\msg_new:nnnn { template } { bad-variable }
  { Incorrect~variable~description~'#1'. }
  {
    The~argument~'#1'~is~not~of~the~form \\
    ~~'<variable>'\\
    ~or~\\
    ~~'global~<variable>'.\\
    It~must~be~given~in~one~of~these~formats~to~be~used~in~a~template.
  }
\msg_new:nnnn { template } { choice-not-implemented }
  { The~choice~'#1'~has~no~implementation. }
  {
    Each~choice~listed~in~the~interface~for~a~template~must~
    have~an~implementation.
  }
\msg_new:nnnn { template } { choice-no-code }
  { The~choice~'#1'~requires~implementation~details. }
  {
    When~creating~template~code~using~\DeclareTemplateCode,~
    each~choice~name~must~have~an~associated~implementation.\\
    This~should~be~given~after~a~'='~sign:~LaTeX~did~not~find~one.
  }
\msg_new:nnnn { template } { choice-requires-code }
  { The~choice~'#2'~for~key~'#1'~requires~an~implementation. }
  {
    You~should~have~put:\\
    \ \ #1~:~choice~{~#2 = <code> ~} \\
    but~LaTeX~did~not~find~any~<code>.
  }
\msg_new:nnnn { template } { duplicate-key-interface }
  { Key~'#1'~appears~twice~in~interface~definition~\msg_line_context:. }
  {
    Each~key~can~only~have~one~interface~declared~in~a~template.\\
    LaTeX~found~two~interfaces~for~'#1'.
  }
\msg_new:nnnn { template } { keytype-requires-argument }
  { The~key~type~'#1'~requires~an~argument~\msg_line_context:. }
  {
    You~should~have~put:\\
    \ \ <key-name>~:~#1~{~<argument>~} \\
    but~LaTeX~did~not~find~an~<argument>.
  }
\msg_new:nnnn { template } { invalid-keytype }
  { The~key~'#1'~is~missing~a~key-type~\msg_line_context:. }
  {
    Each~key~in~a~template~requires~a~key-type,~given~in~the~form:\\
    \ \ <key>~:~<key-type>\\
    LaTeX~could~not~find~a~<key-type>~in~your~input.
  }
\msg_new:nnnn { template } { key-no-value }
  { The~key~'#1'~has~no~value~\msg_line_context:. }
  {
    When~creating~an~instance~of~a~template~
    every~key~listed~must~include~a~value:\\
    \ \ <key>~=~<value>
  }
\msg_new:nnnn { template } { key-no-variable }
  { The~key~'#1'~requires~implementation~details~\msg_line_context:. }
  {
    When~creating~template~code~using~\DeclareTemplateCode,~
    each~key~name~must~have~an~associated~implementation.\\
    This~should~be~given~after~a~'='~sign:~LaTeX~did~not~find~one.
  }
\msg_new:nnnn { template } { key-not-implemented }
  { Key~'#1'~has~no~implementation~\msg_line_context:. }
  {
    The~definition~of~key~implementations~for~template~'#2'~
    of~template~type~'#3'~does~not~include~any~details~for~key~'#1'.\\
    The~key~was~declared~in~the~interface~definition,~
    and~so~an~implementation~is~required.
  }
\msg_new:nnnn { template } { missing-keytype }
  { The~key~'#1'~is~missing~a~key-type~\msg_line_context:. }
  {
    Key~interface~definitions~should~be~of~the~form\\
    \ \ #1~:~<key-type>\\
    but~LaTeX~could~not~find~a~<key-type>.
  }
\msg_new:nnnn { template } { no-template-code }
  {
    The~template~'#2'~of~type~'#1'~is~unknown~
    or~has~no~implementation.
  }
  {
    There~is~no~code~available~for~the~template~name~given.\\
    This~should~be~given~using~\DeclareTemplateCode.
  }
\msg_new:nnnn { template } { type-already-defined }
  { Template~type~'#1'~already~defined. }
  {
    You~have~used~\NewTemplateType~
    with~a~template~type~that~has~already~been~defined.
  }
\msg_new:nnnn { template } { type-mismatch }
  { Template~types~'#1'~and~'#2'~do~not~agree. }
  {
    You~are~trying~to~use~a~template~directly~with~\UseInstance
    (or~a~similar~function),~but~the~template~types~do~not~match.
  }
\msg_new:nnnn { template } { unknown-attribute }
  { The~template~attribute~'#1'~is~unknown. }
  {
    There~is~a~definition~in~the~current~template~reading\\
    \ \ \token_to_str:N \KeyValue {~#1~} \\
    but~there~is~no~key~called~'#1'.
  }
\msg_new:nnnn { template } { unknown-choice }
  { The~choice~'#2'~was~not~declared~for~key~'#1'. }
  {
    The~key~'#1'~takes~a~fixed~list~of~choices~
    and~this~list~does~not~include~'#2'.
  }
\msg_new:nnnn { template } { unknown-default-choice }
  { The~default~choice~'#2'~was~not~declared~for~key~'#1'. }
  {
    The~key~'#1'~takes~a~fixed~list~of~choices~
    and~this~list~does~not~include~'#2'.
  }
\msg_new:nnnn { template } { unknown-instance }
  { The~instance~'#2'~of~type~'#1'~is~unknown. }
  {
    You~have~asked~to~use~an~instance~'#2',~
    but~this~has~not~been~created.
  }
\msg_new:nnnn { template } { unknown-key }
  { Unknown~template~key~'#1'. }
  {
    The~key~'#1'~was~not~declared~in~the~interface~
    for~the~current~template.
  }
\msg_new:nnnn { template } { unknown-keytype }
  { The~key-type~'#1'~is~unknown. }
  {
    Valid~key-types~are:\\
    -~boolean;\\
    -~choice;\\
    -~commalist;\\
    -~function;\\
    -~instance;\\
    -~integer;\\
    -~length;\\
    -~muskip;\\
    -~real;\\
    -~skip;\\
    -~tokenlist.
  }
\msg_new:nnnn { template } { unknown-type }
  { The~template~type~'#1'~is~unknown. }
  {
    A~template~type~needs~to~be~defined~with~\NewTemplateType
    prior~to~using~it.
  }
\msg_new:nnnn { template } { unknown-template }
  { The~template~'#2'~of~type~'#1'~is~unknown. }
  {
    No~interface~has~been~declared~for~a~template~
    '#2'~of~template~type~'#1'.
  }
\msg_new:nnn { template } { declare-instance }
  { Declaring~instance~~'#1'~of~type~#2~\msg_line_context:. }
\msg_new:nnn { template } { declare-template-code }
  { Declaring~code~for~template~'#2'~of~template~type~'#1'~\msg_line_context:. }
\msg_new:nnn { template } { declare-template-interface }
  {
    Declaring~interface~for~template~'#2'~of~template~type~'#1'~
    \msg_line_context:.
  }
\msg_new:nnn { template } { declare-type }
  { Declaring~template~type~'#1'~taking~#2~argument(s)~\msg_line_context:. }
\msg_new:nnn { template } { show-attribute }
  {
    The~template~'#2'~of~type~'#1'~has~
    \tl_if_empty:nTF {#4} { no~#3. } { #3 : #4 }
  }
\msg_new:nnn { template } { show-values }
  {
    The~instance~'#2'~of~type~'#1'~has~
    \tl_if_empty:nTF {#3} { no~values. } { values: #3 }
  }
\prop_gput:Nnn \g_msg_module_type_prop { template } { LaTeX }
\cs_new_protected:Npn \NewTemplateType #1#2
  { \__template_define_type:nn {#1} {#2} }
\cs_new_protected:Npn \DeclareTemplateInterface #1#2#3#4
  { \__template_declare_template_keys:nnnn {#1} {#2} {#3} {#4} }
\cs_new_protected:Npn \DeclareTemplateCode #1#2#3#4#5
  { \__template_declare_template_code:nnnnn {#1} {#2} {#3} {#4} {#5} }
\cs_new_protected:Npn \DeclareTemplateCopy #1#2#3
  { \__template_template_set_eq:nnn {#1} {#2} {#3} }
\cs_new_protected:Npn \EditTemplateDefaults #1#2#3
  { \__template_edit_defaults:nnn {#1} {#2} {#3} }
\cs_new_protected:Npn \UseTemplate #1#2#3
  { \__template_use_template:nnn {#1} {#2} {#3} }
\cs_new_protected:Npn \DeclareInstance #1#2#3#4
  { \__template_declare_instance:nnnn {#1} {#3} {#2} {#4} }
\cs_new_protected:Npn \DeclareInstanceCopy #1#2#3
  { \__template_instance_set_eq:nnn {#1} {#2} {#3} }
\cs_new_protected:Npn \EditInstance #1#2#3
  { \__template_edit_instance:nnn {#1} {#2} {#3} }
\cs_new_protected:Npn \UseInstance #1#2
  { \__template_use_instance:nn {#1} {#2} }
\cs_new_protected:Npn \ShowTemplateCode #1#2
  { \__template_show_code:nn {#1} {#2} }
\cs_new_protected:Npn \ShowTemplateDefaults #1#2
  { \__template_show_defaults:nn {#1} {#2} }
\cs_new_protected:Npn \ShowTemplateInterface #1#2
  { \__template_show_keytypes:nn {#1} {#2} }
\cs_new_protected:Npn \ShowTemplateVariables #1#2
  { \__template_show_vars:nn {#1} {#2} }
\cs_new_protected:Npn \ShowInstanceValues #1#2
  { \__template_show_values:nn {#1} {#2} }
\cs_new:Npn \IfInstanceExistsTF #1#2
  { \__template_if_instance_exist:nnTF {#1} {#2} }
\cs_new:Npn \IfInstanceExistsT #1#2
  { \__template_if_instance_exist:nnT {#1} {#2} }
\cs_new:Npn \IfInstanceExistsF #1#2
  { \__template_if_instance_exist:nnF {#1} {#2} }
\cs_new_protected:Npn \KeyValue #1 {#1}
\cs_new_protected:Npn \AssignTemplateKeys { \__template_assignments_pop: }
\cs_new_protected:Npn \SetTemplateKeys #1#2#3
  { \keys_set_known:nnN { template / #1 / #2 } {#3} \l__template_tmp_clist }
\ExplSyntaxOff
%%% From File: ltalloc.dtx
\chardef\@xxxii=32
\mathchardef\@Mi=10001
\mathchardef\@Mii=10002
\mathchardef\@Miii=10003
\mathchardef\@Miv=10004
\newcount\@tempcnta
\newcount\@tempcntb
\newif\if@tempswa
\newdimen\@tempdima
\newdimen\@tempdimb
\newdimen\@tempdimc
\newbox\@tempboxa
\newskip\@tempskipa
\newskip\@tempskipb
\newtoks\@temptokena
\newskip\@flushglue \@flushglue = 0pt plus 1fil
%%% From File: ltcntrl.dtx
\message{control,}
\long\def\@whilenum#1\do #2{\ifnum #1\relax #2\relax\@iwhilenum{#1\relax
     #2\relax}\fi}
\long\def\@iwhilenum#1{\ifnum #1\expandafter\@iwhilenum
         \else\expandafter\@gobble\fi{#1}}
\long\def\@whiledim#1\do #2{\ifdim #1\relax#2\@iwhiledim{#1\relax#2}\fi}
\long\def\@iwhiledim#1{\ifdim #1\expandafter\@iwhiledim
        \else\expandafter\@gobble\fi{#1}}
\long\def\@whilesw#1\fi#2{#1#2\@iwhilesw{#1#2}\fi\fi}
\long\def\@iwhilesw#1\fi{#1\expandafter\@iwhilesw
         \else\@gobbletwo\fi{#1}\fi}
\def\@nnil{\@nil}
\def\@empty{}
\long\def\@fornoop#1\@@#2#3{}
\long\def\@for#1:=#2\do#3{%
  \expandafter\def\expandafter\@fortmp\expandafter{#2}%
  \ifx\@fortmp\@empty \else
    \expandafter\@forloop#2,\@nil,\@nil\@@#1{#3}\fi}
\long\def\@forloop#1,#2,#3\@@#4#5{\def#4{#1}\ifx #4\@nnil \else
       #5\def#4{#2}\ifx #4\@nnil \else#5\@iforloop #3\@@#4{#5}\fi\fi}
\long\def\@iforloop#1,#2\@@#3#4{\def#3{#1}\ifx #3\@nnil
       \expandafter\@fornoop \else
      #4\relax\expandafter\@iforloop\fi#2\@@#3{#4}}
\def\@tfor#1:={\@tf@r#1 }
\long\def\@tf@r#1#2\do#3{\def\@fortmp{#2}\ifx\@fortmp\space\else
    \@tforloop#2\@nil\@nil\@@#1{#3}\fi}
\long\def\@tforloop#1#2\@@#3#4{\def#3{#1}\ifx #3\@nnil
       \expandafter\@fornoop \else
      #4\relax\expandafter\@tforloop\fi#2\@@#3{#4}}
\long\def\@break@tfor#1\@@#2#3{\fi\fi}
\def\@removeelement#1#2#3{%
  \def\reserved@a##1,#1,##2\reserved@a{##1,##2\reserved@b}%
  \def\reserved@b##1,\reserved@b##2\reserved@b{%
    \ifx,##1\@empty\else##1\fi}%
  \edef#3{%
    \expandafter\reserved@b\reserved@a,#2,\reserved@b,#1,\reserved@a}}
%%% From File: lterror.dtx
\expandafter\let\csname ver@autoerr.sty\endcsname\fmtversion
\let\MessageBreak\relax
\DeclareRobustCommand{\GenericInfo}[2]{%
   \begingroup
      \def\MessageBreak{^^J#1}%
      \set@display@protect
      \immediate\write\m@ne{#2\on@line.}%
   \endgroup
}
\DeclareRobustCommand{\GenericWarning}[2]{%
   \begingroup
      \def\MessageBreak{^^J#1}%
      \set@display@protect
      \immediate\write\@unused{^^J#2\on@line.^^J}%
   \endgroup
}
\bgroup
\lccode`\@=`\ %
\lccode`\~=`\ %
\lccode`\}=`\ %
\lccode`\{=`\ %
\lccode`\T=`\T%
\lccode`\H=`\H%
\catcode`\ =11\relax%
\lowercase{%
\egroup%
\dimen@\ifx\@TeXversion\@undefined4\else\@TeXversion\fi\p@%
\ifdim\dimen@>3.14\p@%
\DeclareRobustCommand{\GenericError}[4]{%
\begingroup%
\immediate\write\@unused{}%
\def\MessageBreak{^^J}%
\set@display@protect%
\edef%
\@err@                                                                 %
{{#4}}%
\errhelp
\@err@                                                                 %
\let
\@err@                                                                 %
\@empty
\def\MessageBreak{^^J#1}%
\def~{\errmessage{%
#2.^^J^^J%
#3^^J%
Type  H <return>  for immediate help%
\@err@                                                                 %
}}%
~%
\endgroup}%
\else%
\DeclareRobustCommand{\GenericError}[4]{%
\begingroup%
\immediate\write\@unused{}%
\def\MessageBreak{^^J}%
\set@display@protect%
\edef%
\@err@                                                                 %
{{#4}}%
\errhelp
\@err@                                                                 %
\let
\@err@                                                                 %
\errmessage
\def\MessageBreak{^^J#1}%
\def~{\typeout{! %
#2.^^J^^J%
#3^^J%
Type  H <return>  for immediate help.}%
\@err@                                                                 %
{}}%
~%
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      See the #1 package documentation for explanation.%
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}
\def\PackageWarning#1#2{%
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      Package #1 Warning: #2%
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}
\def\PackageWarningNoLine#1#2{%
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}
\def\PackageInfo#1#2{%
   \GenericInfo{%
      (#1) \@spaces\@spaces\@spaces
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      Package #1 Info: #2%
   }%
}
\gdef\ClassError#1#2#3{%
   \GenericError{%
      (#1) \space\@spaces\@spaces\@spaces
   }{%
      Class #1 Error: #2%
   }{%
      See the #1 class documentation for explanation.%
   }{#3}%
}
\def\ClassWarning#1#2{%
   \GenericWarning{%
      (#1) \space\@spaces\@spaces\@spaces
   }{%
      Class #1 Warning: #2%
   }%
}
\def\ClassWarningNoLine#1#2{%
   \ClassWarning{#1}{#2\@gobble}%
}
\def\ClassInfo#1#2{%
   \GenericInfo{%
      (#1) \space\space\@spaces\@spaces
   }{%
      Class #1 Info: #2%
   }%
}
\def\ClassNote#1#2{%
   \GenericWarning{%
      (#1) \space\space\@spaces\@spaces
   }{%
      Class #1 Info: #2%
   }%
}
\def\ClassNoteNoLine#1#2{\ClassNote{#1}{#2\@gobble}}
\def\PackageNote#1#2{%
   \GenericWarning{%
      (#1) \@spaces\@spaces\@spaces
   }{%
      Package #1 Info: #2%
   }%
}
\def\PackageNoteNoLine#1#2{\PackageNote{#1}{#2\@gobble}}
\gdef\@latex@error#1#2{%
   \GenericError{%
      \space\space\space\@spaces\@spaces\@spaces
   }{%
      LaTeX Error: #1%
   }{%
      See the LaTeX manual or LaTeX Companion for explanation.%
   }{#2}%
}
\def\@latex@warning#1{%
   \GenericWarning{%
      \space\space\space\@spaces\@spaces\@spaces
   }{%
      LaTeX Warning: #1%
   }%
}
\def\@latex@warning@no@line#1{%
   \@latex@warning{#1\@gobble}}
\def\@latex@info#1{%
   \GenericInfo{%
      \@spaces\@spaces\@spaces
   }{%
      LaTeX Info: #1%
   }%
}
\def\@latex@info@no@line#1{%
  \@latex@info{#1\@gobble}}
\def\@latex@note#1{%
   \GenericWarning{%
      \@spaces\@spaces\@spaces
   }{%
      LaTeX Info: #1%
   }%
}
\def\@latex@note@no@line#1{%
   \@latex@note{#1\@gobble}}
\let\c@errorcontextlines\errorcontextlines
\c@errorcontextlines=-1
\def\on@line{ on input line \the\inputlineno}
\let\@warning\@latex@warning
\let\@@warning\@latex@warning@no@line
\global\let\@latexerr\@latex@error
\def\@spaces{\space\space\space\space}
\gdef\@eha{%
  Your command was ignored.\MessageBreak
  Type \space I <command> <return> \space to replace it %
  with another command,\MessageBreak
  or \space <return> \space to continue without it.}
\gdef\@ehb{%
  You've lost some text. \space \@ehc}
\gdef\@ehc{%
  Try typing \space <return> %
  \space to proceed.\MessageBreak
  If that doesn't work, type \space X <return> \space to quit.}
\gdef\@ehd{%
  You're in trouble here.  \space\@ehc}
\gdef\@notdefinable{%
 \@latex@error{%
   Command \@backslashchar\reserved@a\space
   already defined.\MessageBreak
   Or name \@backslashchar\@qend... illegal,
   see p.192 of the manual}\@eha}
\gdef\@nolnerr{%
  \@latex@error{There's no line here to end}\@eha}
\gdef\@nocounterr#1{%
  \@latex@error{No counter '#1' defined}\@eha}
\gdef\@nocnterr{\@nocounterr?}
\gdef\@ctrerr{%
  \@latex@error{Counter too large}\@ehb}
\gdef\@nodocument{%
  \@latex@error{Missing \protect\begin{document}}\@ehd}
\gdef\@badend#1{%
  \@latex@error{\protect\begin
     {\detokenize\expandafter{\@currenvir}}\@currenvline
     \space ended by \protect\end{\detokenize{#1}}}\@eha}
\gdef\@badmath{%
  \@latex@error{Bad math environment delimiter}\@eha}
\gdef\@toodeep{%
  \@latex@error{Too deeply nested}\@ehd}
\gdef\@badpoptabs{%
  \@latex@error{\protect\pushtabs\space and \protect\poptabs
      \space don't match}\@ehd}
\gdef\@badtab{%
 \@latex@error{Undefined tab position}\@ehd}
\gdef\@preamerr#1{%
  \begingroup
    \let\protect\relax
    \@latex@error{\ifcase #1 Illegal character\or
     Missing @-exp\or Missing p-arg\fi\space
     in array arg}\@ehd
  \endgroup}
\gdef\@badlinearg{%
  \@latex@error{%
       Bad \protect\line\space or \protect\vector
       \space argument}\@ehb}
\gdef\@LRmoderr{%
  \@latex@error{Not allowed in LR mode}\@ehb}
\gdef\@parmoderr{%
  \@latex@error{Not in outer par mode}\@ehb}
\gdef\@fltovf{%
  \@latex@error{Too many unprocessed floats}\@ehb}
\gdef\@latexbug{%
  \@latex@error{This may be a LaTeX bug}{Call for help}}
\gdef\@noitemerr{%
  \@latex@error{Something's wrong--perhaps a missing %
      \protect\item}\@ehc}
\gdef\@notprerr{%
  \@latex@error{Can be used only in preamble}\@eha}
\gdef\@inmatherr#1{%
   \relax
   \ifmmode
    \@latex@error{Command \protect#1 invalid in math mode}\@ehc
   \fi}

\let\conditionally@traceon\@empty
\let\conditionally@traceoff\@empty
%%% From File: ltpar.dtx
\message{par,}
\def\@setpar#1{\def\par{#1}\def\@par{#1}}
\def\@par{\let\par\@@par\par}
\def\@restorepar{\def\par{\@par}}
%% File: ltpara.dtx
%% Copyright (C) 2020-2025
%% Frank Mittelbach, The LaTeX Project
%%% From File: ltpara.dtx


\ExplSyntaxOn
\hook_new_pair:nn{para/before}{para/after}
\hook_new_pair:nn{para/begin}{para/end}
\let \@kernel@before@para@before \@empty
\let \@kernel@before@para@begin  \@empty
\let \@kernel@after@para@end     \@empty
\let \@kernel@after@para@after   \@empty
\tl_new:N \g__para_standard_everypar_tl
\tl_gset:Nn \g__para_standard_everypar_tl {
  \box_gset_to_last:N \g_para_indent_box
  \group_begin:
    \tex_par:D
  \group_end:
  \tex_everypar:D { \msg_error:nnnn { hooks }{ para-mode }{before}{vertical} }
  \@kernel@before@para@before
  \hook_use:n {para/before}
  \group_begin:
    \tex_everypar:D {}
    \skip_set:Nn \tex_parskip:D
         { \if@minipage -\tex_parskip:D \else: \c_zero_skip \fi: }
    \tex_noindent:D
  \group_end:
  \tex_everypar:D{\g__para_standard_everypar_tl}
  \@kernel@before@para@begin
  \hook_use:n {para/begin}
  \if_mode_horizontal: \else:
    \msg_error:nnnn { hooks }{ para-mode }{begin}{horizontal} \fi:
  \__para_handle_indent:
}
\tex_everypar:D{\g__para_standard_everypar_tl}
\newtoks \everypar

\tl_gput_right:Nx \g__para_standard_everypar_tl {
  \exp_not:N \the
  \exp_not:N \toks
  \the \allocationnumber
  \c_space_tl
}
\box_new:N \g_para_indent_box

\cs_new:Npn \__para_handle_indent: {
  \box_use_drop:N \g_para_indent_box
}
\cs_new:Npn \para_omit_indent: {
  \box_gclear:N \g_para_indent_box
}
\cs_set_eq:NN \IndentBox \g_para_indent_box
\cs_set_eq:NN \OmitIndent \para_omit_indent:
\cs_new_protected:Npn \para_end: {
  \scan_stop:
  \mode_if_horizontal:TF {
    \mode_if_inner:F {
         \tex_unskip:D
         \hook_use:n{para/end}
         \@kernel@after@para@end
         \mode_if_horizontal:TF {
           \if_int_compare:w 11 = \tex_lastnodetype:D
             \tex_hskip:D \c_zero_dim
           \fi:
           \tex_par:D
           \hook_use:n{para/after}
           \@kernel@after@para@after
         }
         { \msg_error:nnnn { hooks }{ para-mode }{end}{horizontal} }
    }
  }
  \tex_par:D
}
\cs_new:Npn \para_raw_indent: {
  \mode_if_vertical:TF
       {
         \tex_everypar:D {
           \box_gset_to_last:N \g_para_indent_box
           \tex_everypar:D { \g__para_standard_everypar_tl }
           \__para_handle_indent:
           \the\everypar }
       }
       { \msg_error:nn { latex2e }{ raw-para } }
  \tex_indent:D
}
\cs_new:Npn \para_raw_noindent: {
  \mode_if_vertical:TF
       {
         \tex_everypar:D {
           \tex_everypar:D { \g__para_standard_everypar_tl }
           \the\everypar }
       }
       { \msg_error:nn { latex2e }{ raw-para } }
  \tex_noindent:D
}
\cs_new_eq:NN \para_raw_end: \tex_par:D
\cs_set_eq:NN \RawIndent   \para_raw_indent:
\cs_set_eq:NN \RawNoindent \para_raw_noindent:
\cs_set_eq:NN \RawParEnd   \para_raw_end:
\cs_set_eq:NN \par     \para_end:
\cs_set_eq:NN \@@par   \para_end:
\cs_set_eq:NN \endgraf \para_end:
\everypar{\@nodocument} %% To get an error if text appears before the \document
\msg_new:nnnn { hooks } { para-mode }
  {
    Illegal~mode~ change~ in~ hook~ 'para/#1'.\\
    Hook~ code~ did~ not~ remain~ in~ #2~ mode.
  }
  {
    Paragraph~ hooks~ cannot~ change~ the~ TeX~ mode~ without~ causing~
    endless~ recursion.~ The~ hook~ code~ in~ 'para/#1'~ needs~ to~ stay~
    in~ #2~ mode,~ but~ it~ didn't.~ Examine~ the~ hook~
    code~ with~ \iow_char:N \\ShowHook~ to~ find~ the~ issue.
  }
\msg_new:nnnn { latex2e } { raw-para }
  {
     Not~ in~ vertical~ mode.
  }
  {
    Starting~ a~ paragraph~ with~ \iow_char:N \\RawIndent~ or~
    \iow_char:N \\RawNoindent \\
    (or~ \iow_char:N \\para_raw_indent:~ or~
    \iow_char:N \\para_raw_noindent:)~ is~ only~ allowed \\
    if~ LaTeX~ is~ in~ vertical~ mode.
  }

\ExplSyntaxOff
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% File: ltmeta.dtx
%% Copyright (C) 2021-2025
%% Frank Mittelbach, The LaTeX Project
%%% From File: ltmeta.dtx
\let \IfDocumentMetadataTF \@secondoftwo
\protected\def\DocumentMetadata{%
  \InputIfFileExists{documentmetadata-support.ltx}%
     {}%
     {%
       \@latex@error{No support files for
                    \noexpand\DocumentMetadata found}
         {Is the 'LaTeX-lab' bundle installed?%
         \MessageBreak
         Without it, the declaration is ignored.}%
      \let\DocumentMetadata\@gobble
     }%
  \let \IfDocumentMetadataTF \@firstoftwo
  \DocumentMetadata
}
\ExplSyntaxOn
\int_new:N\g__kernel_target_int
\NewDocumentCommand\MakeLinkTarget{sO{}m}{%
  \ifvmode
    \special{}%
  \else
    \@savsf\spacefactor
    \smash{}%
    \spacefactor\@savsf
  \fi
  \IfBooleanTF {#1}
   {
     \tl_gset:Ne \@currentHref {#3}
   }
   {
     \int_gincr:N\g__kernel_target_int
     \tl_gset:Ne \@currentHref {target*.\int_use:N\g__kernel_target_int}
   }
  \UseTaggingSocket{recordtarget}
   }
\ExplSyntaxOff
  \NewDocumentCommand\LinkTargetOn{}{}
\NewDocumentCommand\LinkTargetOff{}{}
\NewDocumentCommand\NextLinkTarget{m}{}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% From File: ltspace.dtx
\message{spacing,}
\DeclareRobustCommand\pagebreak{\@testopt{\@no@pgbk-}4}
\DeclareRobustCommand\nopagebreak{\@testopt\@no@pgbk4}
\DeclareRobustCommand\linebreak{\@testopt{\@no@lnbk-}4}
\DeclareRobustCommand\nolinebreak{\@testopt\@no@lnbk4}
\DeclareRobustCommand\samepage{\interlinepenalty\@M
   \predisplaypenalty\@M
   \postdisplaypenalty\@M
   \interdisplaylinepenalty\@M
   \@beginparpenalty\@M
   \@endparpenalty\@M
   \@itempenalty\@M
   \@secpenalty\@M
   \interfootnotelinepenalty\@M}
\def\@no@pgbk #1[#2]{%
  \ifvmode
    \penalty #1\@getpen{#2}%
  \else
    \@bsphack
    \vadjust{\penalty #1\@getpen{#2}}%
    \@esphack
  \fi}
\def\@no@lnbk #1[#2]{%
  \ifvmode
    \@nolnerr
  \else
    \@tempskipa\lastskip
    \unskip
    \penalty #1\@getpen{#2}%
    \ifdim\@tempskipa>\z@
      \hskip\@tempskipa
      \ignorespaces
    \fi
  \fi}
\protected\def\@normalcr{%
  \let \reserved@e \relax
  \let \reserved@f \relax
  \@ifstar{\let \reserved@e \vadjust \let \reserved@f \nobreak
             \@xnewline}%
  \@xnewline}
\let\\\@normalcr
\def\@vspace@calcify#1{\setlength\sp@ce@skip{#1}\vskip\sp@ce@skip}

\DeclareRobustCommand\newline{\@normalcr\relax}
\def\@xnewline{\@ifnextchar[% ] bracket matching
                  \@newline
                 {\@gnewline\relax}}
\def\@newline[#1]{\let \reserved@e \vadjust
                   \@gnewline {\@vspace@calcify{#1}}}
\def\@gnewline #1{%
  \ifvmode
    \@nolnerr
  \else
    \unskip \reserved@e {\reserved@f#1}\nobreak \hfil \break
  \fi}
\def\@getpen#1{\ifcase #1 \z@ \or \@lowpenalty\or
         \@medpenalty \or \@highpenalty
         \else \@M \fi}
\def\@nobreakfalse{\global\let\if@nobreak\iffalse}
\def\@nobreaktrue {\global\let\if@nobreak\iftrue}
\@nobreakfalse
\newdimen\@savsk
\newcount\@savsf
\def\@bsphack{%
  \relax
  \ifhmode
    \@savsk\lastskip
    \@savsf\spacefactor
  \fi}
\def\@esphack{%
  \relax
  \ifhmode
    \spacefactor\@savsf
    \ifdim\@savsk>\z@
      \ifdim\lastskip=\z@
        \nobreak \hskip\z@skip
      \fi
      \ignorespaces
    \fi
  \else
    \ifvmode
      \if@nobreak\nobreak\else\if@noskipsec\nobreak\fi\fi
    \fi
  \fi}%
\def\@Esphack{%
  \relax
  \ifhmode
    \spacefactor\@savsf
    \ifdim\@savsk>\z@
      \nobreak \hskip\z@skip
      \@ignoretrue
      \ignorespaces
    \fi
   \fi}%
\def\@xaddvskip{%
  \ifdim\lastskip<\@tempskipb
    \vskip-\lastskip
    \vskip\@tempskipb
  \else
    \ifdim\@tempskipb<\z@
      \ifdim\lastskip<\z@
      \else
        \advance\@tempskipb\lastskip
        \vskip-\lastskip
        \vskip \@tempskipb
      \fi
    \fi
  \fi}
\protected\def\addvspace#1{%
  \ifhmode \ifinner \@LRmoderr \else \par \fi \fi
  \if@minipage\else
    \ifdim \lastskip =\z@
      \@vspace@calcify{#1}%
    \else
    \setlength\@tempskipb{#1}%
      \@xaddvskip
    \fi
  \fi
}
\protected\def\addpenalty#1{%
  \ifhmode \ifinner \@LRmoderr \else \par \fi \fi
  \if@minipage
  \else
    \if@nobreak
    \else
      \ifdim\lastskip=\z@
        \penalty#1\relax
      \else
        \@tempskipb\lastskip
        \begingroup
          \@tempskipa\@tempskipb
          \advance \@tempskipb
            \ifdim\prevdepth>\maxdepth\maxdepth\else
               \ifdim \prevdepth = -\@m\p@ \z@ \else \prevdepth \fi
             \fi
           \vskip -\@tempskipb
           \penalty#1%
           \ifdim\@tempskipa=\@tempskipb
           \else
             \advance\@tempskipb -\@tempskipa
             \vskip \@tempskipb
           \fi
           \vskip \@tempskipa
        \endgroup
      \fi
    \fi
  \fi
}
\DeclareRobustCommand\vspace{\@ifstar\@vspacer\@vspace}
\def\@vspace #1{%
  \ifvmode
    \@vspace@calcify{#1}%
    \vskip\z@skip
   \else
     \@bsphack
     \vadjust{\@restorepar
              \@vspace@calcify{#1}%
              \vskip\z@skip
              }%
     \@esphack
   \fi}
\def\@vspacer#1{%
  \ifvmode
    \dimen@\prevdepth
    \hrule \@height\z@
    \nobreak
    \@vspace@calcify{#1}%
    \vskip\z@skip
    \prevdepth\dimen@
  \else
    \@bsphack
    \vadjust{\@restorepar
             \hrule \@height\z@
             \nobreak
             \@vspace@calcify{#1}%
             \vskip\z@skip}%
    \@esphack
  \fi}
\def\smallskip{\vspace\smallskipamount}
\def\medskip{\vspace\medskipamount}
\def\bigskip{\vspace\bigskipamount}
\newskip\smallskipamount \smallskipamount=3pt plus 1pt minus 1pt
\newskip\medskipamount   \medskipamount  =6pt plus 2pt minus 2pt
\newskip\bigskipamount   \bigskipamount =12pt plus 4pt minus 4pt
\DeclareRobustCommand{\nobreakdashes}{%
  \leavevmode
  \toks@{}%
  \def\reserved@a##1{\toks@\expandafter{\the\toks@-}%
                     \futurelet\@let@token \reserved@b}%
  \def\reserved@b   {\ifx\@let@token -%
                        \expandafter\reserved@a
                     \else
                       \setbox\z@ \hbox{\the\toks@\nobreak}%
                       \unhbox\z@
                       \spacefactor\sfcode`\-
                     \fi}%
  \futurelet\@let@token \reserved@b
}
\DeclareRobustCommand{\nobreakspace}{%
   \leavevmode\nobreak\ }
\catcode `\~=13
\protected\edef~{%
  \noexpand\ifincsname\noexpand\expandafter\string~%
  \noexpand\else
    \noexpand\expandafter\noexpand\nobreakspace
  \noexpand\fi
}
\expandafter\let\expandafter\@xobeysp\csname nobreakspace \endcsname
\let\@xobeytab\@xobeysp
\def\@{\spacefactor\@m{}}%
\DeclareRobustCommand\hspace{\@ifstar\@hspacer\@hspace}
\newskip\sp@ce@skip
\def\@hspace#1{\setlength\sp@ce@skip{#1}\hskip\sp@ce@skip}

\def\@hspacer#1{\vrule \@width\z@\nobreak
                \@hspace{#1}\hskip \z@skip}
\newskip\fill
\fill = 0pt plus 1fill
\def\stretch#1{\z@ \@plus #1fill\relax}
\DeclareRobustCommand\enspace{\leavevmode@ifvmode\kern.5em }
\protected\def\leavevmode@ifvmode{\ifvmode\expandafter\indent\fi}
\def\enskip{\hskip.5em\relax}
\def\quad{\hskip1em\relax}
\def\qquad{\hskip2em\relax}
\ifx\Umathcode\@undefined\else
  \catcode "AD=13
  \def^^ad{\-}
\fi
{\catcode`\^^M=13 \gdef\obeycr{\catcode`\^^M13 \def^^M{\\\relax}%
    \@gobblecr}%
{\catcode`\^^M=13 \gdef\@gobblecr{\@ifnextchar
\@gobble\ignorespaces}}
\gdef\restorecr{\catcode`\^^M5 }}
%%% From File: ltlogos.dtx
\DeclareRobustCommand\TeX{T\kern-.1667em\lower.5ex\hbox{E}\kern-.125emX\@}
\DeclareRobustCommand{\LaTeX}{L\kern-.36em%
        {\sbox\z@ T%
         \vbox to\ht\z@{\hbox{\check@mathfonts
                              \fontsize\sf@size\z@
                              \math@fontsfalse\selectfont
                              A}%
                        \vss}%
        }%
        \kern-.15em%
        \TeX}
\DeclareRobustCommand{\LaTeXe}{\mbox{\m@th
  \if b\expandafter\@car\f@series\@nil\boldmath\fi
  \LaTeX\kern.15em2$_{\textstyle\varepsilon}$}}
%%% From File: ltfiles.dtx
\message{files,}
\newwrite\@mainaux
\newwrite\@partaux
\newif\if@filesw \@fileswtrue
\newif\if@partsw \@partswfalse
\newcount\@clubpenalty
\@clubpenalty \clubpenalty
\def\document{%
  \UseOneTimeHook{begindocument/before}%
  \@kernel@after@begindocument@before
  \@expl@sys@load@backend@@
  \ifx\@unusedoptionlist\@empty\else
    \@latex@warning@no@line{Unused global option(s):^^J%
            \@spaces[\@unusedoptionlist]}%
  \fi
  \@colht\textheight
  \@colroom\textheight \vsize\textheight
  \columnwidth\textwidth
  \@clubpenalty\clubpenalty
  \if@twocolumn
    \advance\columnwidth -\columnsep
    \divide\columnwidth\tw@ \hsize\columnwidth \@firstcolumntrue
  \fi
  \hsize\columnwidth \linewidth\hsize
  \begingroup\@floatplacement\@dblfloatplacement
    \makeatletter\let\@writefile\@gobbletwo
    \global \let \@multiplelabels \relax
    \@input{\jobname.aux}%
  \endgroup
  \if@filesw
    \immediate\openout\@mainaux\jobname.aux
    \immediate\write\@mainaux{\relax}%
  \fi
  \process@table
  \let\glb@currsize\@empty  % Force math initialization.
  \normalsize
  \everypar{}%
  \ifx\normalsfcodes\@empty
    \ifnum\sfcode`\.=\@m
      \let\normalsfcodes\frenchspacing
    \else
      \let\normalsfcodes\nonfrenchspacing
    \fi
  \fi
  \ifx\document@default@language\m@ne
    \chardef\document@default@language\language
  \fi
  \@noskipsecfalse
  \let \@refundefined \relax
  \@kernel@before@begindocument
  \UseOneTimeHook{begindocument}%
  \@kernel@after@begindocument
  \ifdim\topskip<1sp\global\topskip 1sp\relax\fi
  \global\@maxdepth\maxdepth
  \global\let\@begindocumenthook\@undefined
  \ifx\@listfiles\@undefined
    \global\let\@filelist\relax
    \global\let\@addtofilelist\@gobble
  \fi
  \gdef\do##1{\global\let ##1\@notprerr}%
  \@preamblecmds
  \global\let \@nodocument \relax
  \global\let\do\noexpand
  \UseOneTimeHook{begindocument/end}%
  \ignorespaces}
\let\do\noexpand
\NewHook{begindocument}
\NewHook{begindocument/before}
\NewHook{begindocument/end}

\edef \@kernel@after@begindocument@before {%
  \let\expandafter\noexpand\csname
       __hook env/document/begin\endcsname
  \noexpand\@empty}

\@onlypreamble\document
\let\normalsfcodes\@empty
\def\nofiles{%
  \@fileswfalse
  \typeout{No auxiliary output files.^^J}%
  \long\def\protected@write##1##2##3%
    {\write\m@ne{}\if@nobreak\ifvmode\nobreak\fi\fi}%
  \let\makeindex\relax
  \let\makeglossary\relax}
\@onlypreamble\nofiles
\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
}
\let\@auxout=\@mainaux
\def\include#1{\relax
  \ifnum\@auxout=\@partaux
    \@latex@error{\string\include\space cannot be nested}\@eha
  \else
    \set@curr@file{#1}%
    \edef\@curr@file{\@strip@tex@ext\@curr@file}%
    \expandafter\@include\expandafter{\@curr@file} % deliberate space
  \fi}
\def\includeonly#1{%
  \@partswtrue
  \let\@partlist\@empty
  \@for\reserved@a:=#1 \do
    {%
      \expandafter\set@curr@file\expandafter{\reserved@a}%
      \ifx\@partlist\@empty
        \edef\@partlist{\@strip@tex@ext\@curr@file}%
      \else
        \edef\@partlist{\@partlist,\@strip@tex@ext\@curr@file}%
      \fi
    }%
  }
\@onlypreamble\includeonly
\def\reserved@a#1{%
\def\@strip@tex@ext##1{%
  \expandafter\@strip@tex@ext@aux
    ##1\@nil\@nil
     #1\@nil\relax\@nnil}
\def\@strip@tex@ext@aux##1#1\@nil##2\@nnil{%
  \ifx\relax##2\@empty
    \expandafter\@cdr\expandafter\@empty\@cdr{}##1%
  \else##1\fi}}%
\expandafter\reserved@a
\expandafter{\detokenize{.tex}}
\def\@include#1 {%
\ifx\@nodocument\relax
  \clearpage
  \if@filesw
    \immediate\write\@mainaux{\string\@input{#1.aux}}%
  \fi
  \@tempswatrue
  \if@partsw
    \@tempswafalse
    \edef\reserved@b{#1}%
    \@for\reserved@a:=\@partlist\do
      {\ifx\reserved@a\reserved@b\@tempswatrue\fi}%
  \fi
  \if@tempswa
    \let\@auxout\@partaux
    \if@filesw
      \immediate\openout\@partaux "#1.aux"
      \immediate\write\@partaux{\relax}%
    \fi
    \@filehook@set@CurrentFile
    \UseHook{include/before}%
    \UseOneTimeHook{include/#1/before}%
    \@input@{#1.tex}%
    \UseOneTimeHook{include/#1/end}%
    \UseHook{include/end}%
    \clearpage
    \UseOneTimeHook{include/#1/after}%
    \UseHook{include/after}%
    \clearpage
    \@writeckpt{#1}%
    \if@filesw
      \immediate\closeout\@partaux
    \fi
  \else
    \deadcycles\z@
    \@nameuse{cp@#1}%
    \UseHook{include/excluded}%
    \UseOneTimeHook{include/#1/excluded}%
  \fi
  \let\@auxout\@mainaux
\else
\@latex@warning{%
  \noexpand\include should only be used after \string\begin{document}}%
\@input@{#1}%
\fi}
\NewHook{include/before}
\NewReversedHook{include/end}
\NewReversedHook{include/after}
\NewHook{include/excluded}
\def\@writeckpt#1{%
  \if@filesw
    \immediate\write\@partaux{\string\@setckpt{#1}\@charlb}%
    {\let\@elt\@wckptelt \cl@@ckpt}%
    \immediate\write\@partaux{\@charrb}%
  \fi}
\def\@wckptelt#1{%
  \immediate\write\@partaux{%
    \string\setcounter{#1}{\the\@nameuse{c@#1}}}}
\def\@setckpt#1{\global\@namedef{cp@#1}}
{\catcode`[=1 \catcode`]=2
\catcode`{=11 \catcode`}=11
\gdef\@charlb[{]
\gdef\@charrb[}]
]% }brace matching
\def\set@curr@file#1{%
  \begingroup
    \escapechar\m@ne
    \xdef\@curr@file{%
      \expandafter\expandafter\expandafter\unquote@name
      \expandafter\expandafter\expandafter{%
      \expandafter\string
        \csname\@firstofone#1\@empty\endcsname}}%
  \endgroup
}
\def\quote@name#1{"\quote@@name#1\@gobble""}
\def\quote@@name#1"{#1\quote@@name}
\def\unquote@name#1{\quote@@name#1\@gobble"}
\DeclareRobustCommand\IfFileExists[1]{%
  \set@curr@file{#1}%
  \expandafter\IfFileExists@\expandafter{\@curr@file}}
\long\def \IfFileExists@#1#2#3{%
  \edef\@filef@und{\IfFileExists@@{#1}}%
  \ifx\@filef@und\@empty
    \if\relax\detokenize{#1}\relax
      \let\reserved@a\@firstoftwo
      \def\@filef@und{".tex" }%
    \else
      \let\reserved@a\@secondoftwo
    \fi
  \else
    \let\reserved@a\@firstoftwo
    \edef\@filef@und{"\@filef@und" }%
  \fi
  \expandafter\def\expandafter\reserved@a
    \expandafter{\reserved@a{#2}{#3}}%
\reserved@a}
\ExplSyntaxOn
\cs_new:Npn \IfFileExists@@ #1
  {
    \tl_if_blank:nF {#1}
      {
        \tl_if_head_eq_charcode:oNTF { \use:n #1 } |
          {#1}
          { \file_full_name:n {#1} }
      }
  }
\cs_generate_variant:Nn \tl_if_head_eq_charcode:nNTF { o }
\ExplSyntaxOff
\long\def\@iffileonpath#1{%
  \let\reserved@a\@secondoftwo
  \expandafter\@tfor\expandafter\reserved@b\expandafter
             :\expandafter=\input@path\do{%
    \openin\@inputcheck\expandafter\quote@name\expandafter{\reserved@b#1} %
    \ifeof\@inputcheck\else
      \edef\@filef@und{\expandafter\quote@name\expandafter{\reserved@b#1} }%
      \let\reserved@a\@firstoftwo%
      \closein\@inputcheck
      \@break@tfor
    \fi}%
  \reserved@a}
\DeclareRobustCommand \InputIfFileExists[2]{%
  \IfFileExists{#1}%
    {%
  \expandafter\@swaptwoargs\expandafter
      {\@filef@und}{#2\@addtofilelist{#1}\@@input}}}
\long\def\@swaptwoargs#1#2{#2#1}
\def\input{\@ifnextchar\bgroup\@iinput\@@input}
\def\@iinput#1{%
  \InputIfFileExists{#1}{}%
  {\filename@parse\@curr@file
   \edef\reserved@a{\noexpand\@missingfileerror
     {\filename@area\filename@base}%
     {\ifx\filename@ext\relax tex\else\filename@ext\fi}}%
   \reserved@a
   \edef\reserved@a{\noexpand\@iinput{%
     \@missingfile@area\@missingfile@base.\@missingfile@ext}}%
   \reserved@a}}

\def\@input#1{%
  \IfFileExists{#1}{\@@input\@filef@und}{\typeout{No file #1.}}}
\def\@input@#1{\InputIfFileExists{#1}{}{\typeout{No file #1.}}}
\gdef\@missingfileerror#1#2{%
     \typeout{^^J! LaTeX Error: File `#1.#2' not found.^^J^^J%
      Type X to quit or <RETURN> to proceed,^^J%
      or enter new name. (Default extension: #2)^^J}%
     \message{Enter file name: }%
      {\endlinechar\m@ne
       \global\read\m@ne to\@gtempa}%
    \ifx\@gtempa\@empty
      \let\@missingfile@area\@empty
      \let\@missingfile@base\@empty
      \def\@missingfile@ext{tex}%
    \else
      \def\reserved@b{\batchmode\read-1 to \reserved@a}%
      \def\reserved@a{x}\ifx\reserved@a\@gtempa\reserved@b\fi
      \def\reserved@a{X}\ifx\reserved@a\@gtempa\reserved@b\fi
      \filename@parse\@gtempa
      \edef\filename@ext{%
        \ifx\filename@ext\relax#2\else\filename@ext\fi}%
     \edef\reserved@a{%
       \noexpand\IfFileExists
         {\filename@area\filename@base.\filename@ext}%
         {\def\noexpand\@missingfile@area{\filename@area}%
          \def\noexpand\@missingfile@base{\filename@base}%
          \def\noexpand\@missingfile@ext {\filename@ext}}%
         {\noexpand\@missingfileerror
            {\filename@area\filename@base}{\filename@ext}}}%
      \reserved@a
    \fi
}
\def\@obsoletefile#1#2{%
   \@latex@warning@no@line{inputting `#1' instead of obsolete `#2'}}
\@onlypreamble\@obsoletefile
\let\@filelist\@gobble
\ExplSyntaxOn
\keys_define:nn { __kernel / listfiles }
  {
    hashes .legacy_if_set:n = @listfiles@hashes ,
    sizes .legacy_if_set:n  = @listfiles@sizes
  }
\ExplSyntaxOff
\NewDocumentCommand\listfiles{O{}}{%
  \SetKeys[__kernel/listfiles]{#1}%
  \let\listfiles\relax
  \def\@listfiles##1##2##3##4##5##6##7##8##9\@@{%
     \def\reserved@d{\\}%
     \@tfor\reserved@c:=##1##2##3##4##5##6##7##8\do{%
       \ifx\reserved@c\reserved@d
         \edef\filename@area{ \filename@area}%
       \fi}}%
  \def\@dofilelist{%
     \typeout{^^J *File List*}%
     \@for\@currname:=\@filelist\do{%
       \filename@parse\@currname
       \edef\reserved@a{%
          \filename@base.%
          \ifx\filename@ext\relax tex\else\filename@ext\fi}%
       \expandafter\let\expandafter\reserved@b
                              \csname ver@\reserved@a\endcsname
       \ifx\reserved@b\relax
         \expandafter\let\expandafter\reserved@b
                         \csname ver@@\reserved@a\endcsname
       \fi
       \expandafter\expandafter\expandafter\@listfiles\expandafter
             \filename@area\filename@base\\\\\\\\\\\\\\\\\\\@@
       \typeout{%
         \filename@area\reserved@a
         \ifx\reserved@b\relax\else\@spaces\reserved@b\fi
         \ifnum0%
           \if@listfiles@hashes1\fi
           \if@listfiles@sizes1\fi
             >0 %
             ^^J\@spaces
             (%
               \if@listfiles@sizes
                 size \@dofilelist@size\@currname
                 \if@listfiles@hashes
                   , %
                 \fi
               \fi
               \if@listfiles@hashes
                 hash \@dofilelist@hash\@currname
               \fi
             )%
         \fi
      }}%
     \typeout{ ***********^^J}}}
\ExplSyntaxOn
\cs_new_eq:NN \@dofilelist@hash \file_mdfive_hash:n
\cs_new_eq:NN \@dofilelist@size \file_size:n
\ExplSyntaxOff
\@onlypreamble\listfiles
\let\@dofilelist\relax
%%% From File: ltoutenc.dtx
\message{font encodings,}
\def\DeclareTextCommand{%
   \@dec@text@cmd\newcommand}
\def\ProvideTextCommand{%
   \@dec@text@cmd\providecommand}
\def\@dec@text@cmd#1#2#3{%
   \expandafter\def\expandafter#2%
      \expandafter{%
         \csname#3-cmd\expandafter\endcsname
         \expandafter#2%
         \csname#3\string#2\endcsname
      }%
   \let\@ifdefinable\@rc@ifdefinable
   \expandafter#1\csname#3\string#2\endcsname}
\def\chardef@text@cmd{%
   \let\@ifdefinable\@@ifdefinable
   \chardef
  }
\def\DeclareTextSymbol#1#2#3{%
   \@dec@text@cmd\chardef@text@cmd#1{#2}#3\relax
  }
\@onlypreamble\DeclareTextCommand
\@onlypreamble\DeclareTextSymbol
\def\@current@cmd#1{%
   \ifx\protect\@typeset@protect
      \@inmathwarn#1%
   \else
      \noexpand#1\expandafter\@gobble
   \fi}
\def\@changed@cmd#1#2{%
   \ifx\protect\@typeset@protect
      \@inmathwarn#1%
      \expandafter\ifx\csname\cf@encoding\string#1\endcsname\relax
         \expandafter\ifx\csname ?\string#1\endcsname\relax
            \expandafter\def\csname ?\string#1\endcsname{%
               \TextSymbolUnavailable#1%
            }%
         \fi
         \global\expandafter\let
               \csname\cf@encoding \string#1\expandafter\endcsname
               \csname ?\string#1\endcsname
      \fi
      \csname\cf@encoding\string#1%
         \expandafter\endcsname
   \else
      \noexpand#1%
   \fi}
\gdef\TextSymbolUnavailable#1{%
   \@latex@error{%
      Command \protect#1 unavailable in encoding \cf@encoding%
   }\@eha}
\def\@inmathwarn#1{%
   \ifmmode
      \@latex@warning{Command \protect#1 invalid in math mode}%
   \fi}
\def\DeclareTextCommandDefault#1{%
   \DeclareTextCommand#1?}
\def\ProvideTextCommandDefault#1{%
   \ProvideTextCommand#1?}
\@onlypreamble\DeclareTextCommandDefault
\expandafter\let\csname?-cmd\endcsname\@changed@cmd
\def\DeclareTextAccent#1#2#3{%
   \DeclareTextCommand#1{#2}{\add@accent{#3}}}
\@onlypreamble\DeclareTextAccent
\def\add@accent#1#2{\hmode@bgroup
   \let\hmode@start@before@group\@firstofone
   \setbox\@tempboxa\hbox{#2%
      \global\mathchardef\accent@spacefactor\spacefactor}%
   \let\maybe@load@fontshape\relax
   \let\ignorespaces\relax
   \accent#1 #2\egroup\ifmmode\else\spacefactor\accent@spacefactor\fi}
\let\accent@spacefactor\relax
\def\hmode@bgroup{\leavevmode\bgroup}
\def\DeclareTextCompositeCommand#1#2#3#4{%
  \expandafter\let\expandafter\reserved@a\csname#2\string#1\endcsname
  \ifx\reserved@a\relax
   \DeclareTextCommand#1{#2}{%
     \@latex@error{\string#1 undeclared in encoding #2}\@eha}%
   \@latex@info{Composite with undeclared \string#1 in encoding #2}%
   \expandafter\let\expandafter\reserved@a\csname#2\string#1\endcsname
  \fi
  \expandafter\expandafter\expandafter\ifx
  \expandafter\@car\reserved@a\relax\relax\@nil \@text@composite \else
      \edef\reserved@b##1{%
         \def\expandafter\noexpand
            \csname#2\string#1\endcsname####1{%
            \noexpand\@text@composite
               \expandafter\noexpand\csname#2\string#1\endcsname
               ####1\noexpand\@empty\noexpand\@text@composite
               {##1}}}%
      \expandafter\reserved@b\expandafter{\reserved@a{##1}}%
   \fi
   \expandafter\def\csname\expandafter\string\csname
      #2\endcsname\string#1-\string#3\@empty\endcsname{#4}%
  }
\@onlypreamble\DeclareTextCompositeCommand
\def\@text@composite#1#2#3\@text@composite{%
   \expandafter\@text@composite@x
      \csname\string#1-\string#2\endcsname}
\def\@text@composite@x#1{%
   \ifx#1\relax
      \expandafter\@secondoftwo
   \else
      \expandafter\@firstoftwo
   \fi
   #1}
\catcode\z@=11\relax
\def\DeclareTextComposite#1#2#3#4{%
   \def\reserved@a{\DeclareTextCompositeCommand#1{#2}{#3}}%
   \bgroup
      \lccode\z@#4%
      \lowercase{%
   \egroup
      \reserved@a ^^@}}
\catcode\z@=15\relax
\@onlypreamble\DeclareTextComposite
\DeclareRobustCommand*\UseTextAccent[3]{%
  \hmode@start@before@group
   {%
    \let\hmode@start@before@group\@firstofone
    \let\@curr@enc\cf@encoding
    \@use@text@encoding{#1}%
    #2{\@use@text@encoding\@curr@enc#3}%
   }}
\DeclareRobustCommand*\UseTextSymbol[2]{%
       \hmode@start@before@group
       {%
          \def\@wrong@font@char{\MessageBreak
             for \noexpand\symbol`\string#2'}%
          \@use@text@encoding{#1}%
          #2%
       }%
    }
\def\@use@text@encoding#1{%
   \edef\f@encoding{#1}%
   \xdef\font@name{%
      \csname\curr@fontshape/\f@size\endcsname}%
   \pickup@font
   \font@name
   \@@enc@update}
\let\hmode@start@before@group\leavevmode
\def\DeclareTextSymbolDefault#1#2{%
   \DeclareTextCommandDefault#1{\UseTextSymbol{#2}#1}}
\def\DeclareTextAccentDefault#1#2{%
   \DeclareTextCommandDefault#1{\UseTextAccent{#2}#1}}
\@onlypreamble\DeclareTextSymbolDefault
\@onlypreamble\DeclareTextAccentDefault
\def\UndeclareTextCommand#1#2{%
  \expandafter\ifx\csname#2\string#1\endcsname\relax
  \else
     \global\expandafter\let\csname#2\string#1\endcsname
            \@undefined
     \expandafter\expandafter\expandafter
     \ifx\expandafter\@thirdofthree#1\@undefined
       \expandafter\gdef\expandafter#1\expandafter
          {\csname ?-cmd\expandafter\endcsname\expandafter
           #1\csname?\string#1\endcsname}%
     \fi
 \fi
}
\@onlypreamble\UndeclareTextCommand
\def\@tabacckludge#1{\expandafter\@changed@cmd
                                 \csname\string#1\endcsname\relax}
\let\a=\@tabacckludge
\DeclareTextAccentDefault{\"}{OT1}
\DeclareTextAccentDefault{\'}{OT1}
\DeclareTextAccentDefault{\.}{OT1}
\DeclareTextAccentDefault{\=}{OT1}
\DeclareTextAccentDefault{\H}{OT1}
\DeclareTextAccentDefault{\^}{OT1}
\DeclareTextAccentDefault{\`}{OT1}
\DeclareTextAccentDefault{\b}{OT1}
\DeclareTextAccentDefault{\c}{OT1}
\DeclareTextAccentDefault{\d}{OT1}
\DeclareTextAccentDefault{\r}{OT1}
\DeclareTextAccentDefault{\u}{OT1}
\DeclareTextAccentDefault{\v}{OT1}
\DeclareTextAccentDefault{\~}{OT1}
\DeclareTextSymbolDefault{\AE}{OT1}
\DeclareTextSymbolDefault{\L}{OT1}
\DeclareTextSymbolDefault{\OE}{OT1}
\DeclareTextSymbolDefault{\O}{OT1}
\DeclareTextSymbolDefault{\ae}{OT1}
\DeclareTextSymbolDefault{\i}{OT1}
\DeclareTextSymbolDefault{\j}{OT1}
\DeclareTextSymbolDefault{\ij}{OT1}
\DeclareTextSymbolDefault{\IJ}{OT1}
\DeclareTextSymbolDefault{\l}{OT1}
\DeclareTextSymbolDefault{\oe}{OT1}
\DeclareTextSymbolDefault{\o}{OT1}
\DeclareTextSymbolDefault{\ss}{OT1}
\DeclareTextSymbolDefault{\textdollar}{OT1}
\DeclareTextSymbolDefault{\textemdash}{OT1}
\DeclareTextSymbolDefault{\textendash}{OT1}
\DeclareTextSymbolDefault{\textexclamdown}{OT1}
\DeclareTextSymbolDefault{\textquestiondown}{OT1}
\DeclareTextSymbolDefault{\textquotedblleft}{OT1}
\DeclareTextSymbolDefault{\textquotedblright}{OT1}
\DeclareTextSymbolDefault{\textquoteleft}{OT1}
\DeclareTextSymbolDefault{\textquoteright}{OT1}
\DeclareTextSymbolDefault{\textsterling}{OT1}
\DeclareTextSymbolDefault{\textasteriskcentered}{OMS}
\DeclareTextSymbolDefault{\textbackslash}{OMS}
\DeclareTextSymbolDefault{\textbar}{OMS}
\DeclareTextSymbolDefault{\textbardbl}{OMS}
\DeclareTextSymbolDefault{\textbraceleft}{OMS}
\DeclareTextSymbolDefault{\textbraceright}{OMS}
\DeclareTextSymbolDefault{\textbullet}{OMS}
\DeclareTextSymbolDefault{\textdaggerdbl}{OMS}
\DeclareTextSymbolDefault{\textdagger}{OMS}
\DeclareTextSymbolDefault{\textparagraph}{OMS}
\DeclareTextSymbolDefault{\textperiodcentered}{OMS}
\DeclareTextSymbolDefault{\textsection}{OMS}
\DeclareTextAccentDefault{\textcircled}{OMS}
\DeclareTextSymbolDefault{\textless}{OML}
\DeclareTextSymbolDefault{\textgreater}{OML}
\DeclareTextAccentDefault{\t}{OML}
\DeclareTextCommandDefault{\textcopyright}{\textcircled{c}}
\DeclareTextCommandDefault{\textasciicircum}{\^{}}
\DeclareTextCommandDefault{\textasciitilde}{\~{}}
\DeclareTextCommandDefault{\textunderscore}{%
  \leavevmode \kern.06em\vbox{\hrule\@width.3em}}
\DeclareTextSymbolDefault{\textcompwordmark}{T1}
\DeclareTextCommandDefault{\textvisiblespace}{%
   \mbox{\kern.06em\vrule \@height.3ex}%
   \vbox{\hrule \@width.3em}%
   \hbox{\vrule \@height.3ex}}
\DeclareTextCommandDefault{\textellipsis}{%
   .\kern\fontdimen3\font
   .\kern\fontdimen3\font
   .\kern\fontdimen3\font}
\DeclareTextCommandDefault{\textregistered}{\textcircled{%
     \check@mathfonts\fontsize\sf@size\z@\math@fontsfalse\selectfont R}}
\DeclareTextCommandDefault{\texttrademark}{\textsuperscript{TM}}
\DeclareTextCommandDefault{\SS}{SS}
\DeclareTextCommandDefault{\textordfeminine}{\textsuperscript{a}}
\DeclareTextCommandDefault{\textordmasculine}{\textsuperscript{o}}
\DeclareRobustCommand{\$}{\ifmmode\mathdollar\else\textdollar\fi}
\protected\def\{{\ifmmode\lbrace\else\textbraceleft\fi}
\protected\def\}{\ifmmode\rbrace\else\textbraceright\fi}
\DeclareRobustCommand{\P}{\ifmmode\mathparagraph\else\textparagraph\fi}
\DeclareRobustCommand{\S}{\ifmmode\mathsection\else\textsection\fi}
\DeclareRobustCommand{\dag}{\ifmmode{\dagger}\else\textdagger\fi}
\DeclareRobustCommand{\ddag}{\ifmmode{\ddagger}\else\textdaggerdbl\fi}
\DeclareRobustCommand{\_}{%
   \ifmmode\nfss@text{\textunderscore}\else\textunderscore\fi}
\DeclareRobustCommand{\copyright}{%
   \ifmmode{\nfss@text{\textcopyright}}\else\textcopyright\fi}
\DeclareRobustCommand{\pounds}{%
   \ifmmode\mathsterling\else\textsterling\fi}
\DeclareRobustCommand{\dots}{%
   \ifmmode\mathellipsis\else\textellipsis\fi}
\let\ldots\dots
\DeclareTextCommandDefault\textcommabelow[1]
  {\hmode@bgroup\ooalign{\null#1\crcr\hidewidth\raise-.31ex
   \hbox{\check@mathfonts\fontsize\ssf@size\z@
   \math@fontsfalse\selectfont,}\hidewidth}\egroup}
\DeclareTextCommandDefault\textcommaabove[1]{%
  \hmode@bgroup
  \ooalign{%
    \hidewidth
    \raise.7ex\hbox{%
      \check@mathfonts\fontsize\ssf@size\z@\math@fontsfalse\selectfont`%
    }%
   \hidewidth\crcr
   \null#1\crcr
  }%
  \egroup
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% From File: ltcounts.dtx

\def\setcounter#1#2{%
  \@ifundefined{c@#1}%
    {\@nocounterr{#1}}%
    {\global\csname c@#1\endcsname#2\relax}}
\def\addtocounter#1#2{%
  \@ifundefined{c@#1}%
    {\@nocounterr{#1}}%
    {\global\advance\csname c@#1\endcsname #2\relax}}
\def\newcounter#1{%
  \expandafter\@ifdefinable \csname c@#1\endcsname
    {\@definecounter{#1}}%
  \@ifnextchar[{\@newctr{#1}}{}}
\def\value#1{\csname c@#1\endcsname}
\def\@newctr#1[#2]{%
  \@ifundefined{c@#2}{\@nocounterr{#2}}{\@addtoreset{#1}{#2}}}
\def\stepcounter#1{%
  \addtocounter{#1}\@ne
  \begingroup
    \let\@elt\@stpelt
    \csname cl@#1\endcsname
  \endgroup}
\def\@stpelt#1{\global\csname c@#1\endcsname \m@ne\stepcounter{#1}}%
\def\cl@@ckpt{\@elt{page}}
\def\@definecounter#1{\expandafter\newcount\csname c@#1\endcsname
     \setcounter{#1}\z@
     \global\expandafter\let\csname cl@#1\endcsname\@empty
     \@addtoreset{#1}{@ckpt}%
     \global\expandafter\let\csname p@#1\endcsname\@empty
     \expandafter\xdef\csname theH#1\endcsname{%
       \noexpand\the\noexpand\value{#1}}%
     \expandafter
     \ifx\csname the#1\endcsname\relax
       \expandafter
       \gdef\csname the#1\expandafter\endcsname\expandafter
              {\expandafter\@arabic\csname c@#1\endcsname}%
     \else
       \@latex@warning{Command `\string\the#1' already
                       defined -- not changed}%
     \fi}
\def\@addtoreset#1#2{\expandafter\@cons\csname cl@#2\endcsname {{#1}}%
  \expandafter\xdef\csname theH#1\endcsname{%
    \expandafter\noexpand\csname theH#2\endcsname.%
    \noexpand\the\noexpand\value{#1}}%
}
\def\@removefromreset#1#2{%
  \@ifundefined{c@#2}\relax
  {\begingroup
     \expandafter\let\csname c@#1\endcsname\@removefromreset
     \def\@elt##1{%
       \expandafter\ifx\csname c@##1\endcsname\@removefromreset
       \else
         \noexpand\@elt{##1}%
       \fi}%
     \expandafter\xdef\csname cl@#2\endcsname
      {\csname cl@#2\endcsname}%
    \endgroup}}

\def\@ifbothcounters#1#2#3{%
  \@ifundefined{c@#1}{\@nocounterr{#1}}%
    {% else counter is defined
     \@ifundefined{c@#2}{\@nocounterr{#2}}%
       {% else both counter and within  are defined
        #3}}}
\NewDocumentCommand \counterwithout {sO{\arabic}mm}{%
  \@ifbothcounters{#3}{#4}{%
    \@removefromreset{#3}{#4}%
    \IfBooleanF #1%
        {\expandafter
         \gdef\csname the#3\endcsname {#2{#3}}}%
  }%
}
\NewDocumentCommand \counterwithin {sO{\arabic}mm}{%
  \@ifbothcounters{#3}{#4}{%
    \@addtoreset{#3}{#4}%
    \IfBooleanF #1%
       {\expandafter
         \gdef\csname the#3\expandafter\endcsname
         \expandafter
             {\csname the#4\endcsname .#2{#3}}}%
  }%
}
\def\arabic#1{\expandafter\@arabic\csname c@#1\endcsname}
\def\roman#1{\expandafter\@roman\csname c@#1\endcsname}
\def\Roman#1{\expandafter\@Roman\csname c@#1\endcsname}
\def\alph#1{\expandafter\@alph\csname c@#1\endcsname}
\def\Alph#1{\expandafter\@Alph\csname c@#1\endcsname}
\def\fnsymbol#1{\expandafter\@fnsymbol\csname c@#1\endcsname}
\def\@arabic#1{\number #1}  %% changed 29 Apr 86
\def\@roman#1{\romannumeral #1}

\def\@Roman#1{\expandafter\@slowromancap\romannumeral #1@}
\def\@slowromancap#1{\ifx @#1% then terminate
     \else
       \if i#1I\else\if v#1V\else\if x#1X\else\if l#1L\else\if
       c#1C\else\if d#1D\else \if m#1M\else#1\fi\fi\fi\fi\fi\fi\fi
       \expandafter\@slowromancap
     \fi
}
\def\@alph#1{%
  \ifcase#1\or a\or b\or c\or d\or e\or f\or g\or h\or i\or j\or
   k\or l\or m\or n\or o\or p\or q\or r\or s\or t\or u\or v\or w\or x\or
    y\or z\else\@ctrerr\fi}
\def\@Alph#1{%
  \ifcase#1\or A\or B\or C\or D\or E\or F\or G\or H\or I\or J\or
   K\or L\or M\or N\or O\or P\or Q\or R\or S\or T\or U\or V\or W\or X\or
    Y\or Z\else\@ctrerr\fi}
\def\@fnsymbol#1{%
   \ifcase#1\or \TextOrMath\textasteriskcentered *\or
   \TextOrMath \textdagger \dagger\or
   \TextOrMath \textdaggerdbl \ddagger \or
   \TextOrMath \textsection  \mathsection\or
   \TextOrMath \textparagraph \mathparagraph\or
   \TextOrMath \textbardbl \|\or
   \TextOrMath {\textasteriskcentered\textasteriskcentered}{**}\or
   \TextOrMath {\textdagger\textdagger}{\dagger\dagger}\or
   \TextOrMath {\textdaggerdbl\textdaggerdbl}{\ddagger\ddagger}\else
   \@ctrerr \fi
}%
\begingroup\expandafter\expandafter\expandafter\endgroup
\expandafter\ifx\csname protected\endcsname\relax
\DeclareRobustCommand\TextOrMath{%
  \ifmmode  \expandafter\@secondoftwo
  \else     \expandafter\@firstoftwo  \fi}
\protected@edef\TextOrMath#1#2{\TextOrMath{#1}{#2}}
\else
\protected\expandafter\def\csname TextOrMath\space\endcsname{%
  \ifmmode  \expandafter\@secondoftwo
  \else     \expandafter\@firstoftwo  \fi}
\edef\TextOrMath#1#2{%
  \expandafter\noexpand\csname TextOrMath\space\endcsname
  {#1}{#2}}
\fi
%%% From File: ltlength.dtx
\message{lengths,}
\def\newlength#1{\@ifdefinable#1{\newskip#1}}
\def\setlength#1#2{#1 #2\relax}
\def\addtolength#1#2{\advance#1 #2\relax}
\def\@settodim#1#2#3{\setbox\@tempboxa\hbox
  {{\SuspendTagging{\@settodim}#3\ResumeTagging{\@settodim}}}#2#1\@tempboxa
       \setbox\@tempboxa\box\voidb@x}
\DeclareRobustCommand\settoheight{\@settodim\ht}
\DeclareRobustCommand\settodepth {\@settodim\dp}
\DeclareRobustCommand\settowidth {\@settodim\wd}
\def\@settopoint#1{\divide#1\p@\multiply#1\p@}
%%% From File: ltfssbas.dtx
%% Copyright (C) 1989-2002 Frank Mittelbach and Rainer Sch\"opf
\message{NFSS base,}
\def\@nomath#1{\relax\ifmmode
   \@font@warning{Command \noexpand#1invalid in math mode}\fi}
\gdef\no@alphabet@error#1{\relax \ifmmode
    \@latex@error{Math\space alphabet\space identifier\space
          \noexpand#1is\space undefined\space in\space math\space
           version\space `\math@version'}%
        {Your\space requested\space math\space alphabet\space
         is\space undefined\space in\space the\space current\space
          math\space version.^^JCheck\space the\space spelling\space
          or\space use\space the\space \noexpand\SetMathAlphabet\space
          command.}
     \fi}
\let\mathgroup\fam
\@onlypreamble\new@mathgroup
\def\DeclareFontShape{\begingroup
   \nfss@catcodes
   \expandafter\endgroup
   \DeclareFontShape@}
\def\DeclareFontShape@#1#2#3#4#5#6{%
   \expandafter\ifx\csname #1+#2\endcsname\relax
     \@latex@error{Font family `#1+#2' unknown}\@eha
   \else
     \edef\reserved@a{#3}%
     \series@maybe@drop@one@m\reserved@a\reserved@b
     \ifx\reserved@a\reserved@b\else
       \@latex@note{Font shape #1/#2/#3/#4 has incorrect series
         value `#3'.\MessageBreak It should not contain an `m'!
         Please correct it.\MessageBreak Found}%
     \fi
     \expandafter
       \xdef\csname#1/#2/\reserved@b/#4\endcsname
                 {\expandafter\noexpand\csname #5\endcsname}%
     \def\reserved@a{#6}%
     \global
     \expandafter\let\csname#5\expandafter\endcsname
        \ifx\reserved@a\@empty
          \@empty
        \else
          \reserved@a
        \fi
   \fi
  }
\def\DeclareFixedFont#1#2#3#4#5#6{%
   \begingroup
      \math@fontsfalse
      \every@math@size{}%
      \fontsize{#6}\z@
      \usefont{#2}{#3}{#4}{#5}%
      \global\expandafter\let\expandafter#1\the\font
   \endgroup
  }
\def\do@subst@correction{%
       \xdef\subst@correction{%
          \font@name
          \global\expandafter\font
            \csname \curr@fontshape/\f@size\endcsname
            \noexpand\fontname\font
           \relax}%
       \aftergroup\subst@correction
}
\def\DeclareFontFamily#1#2#3{%
 \@ifundefined{T@#1}%
    {%
     \@latex@error{Encoding scheme  `#1' unknown}\@eha
    }%
    {%
     \def\reserved@a{#3}%
     \global
     \expandafter\let\csname #1+#2\expandafter\endcsname
            \ifx \reserved@a\@empty
              \@empty
            \else \reserved@a
            \fi
    }%
}
\let\cdp@list\@empty
\@onlypreamble\cdp@list
\let\cdp@elt\relax
\@onlypreamble\cdp@elt
\def\DeclareFontEncoding{%
   \begingroup
   \nfss@catcodes
   \expandafter\endgroup
   \DeclareFontEncoding@}
\@onlypreamble\DeclareFontEncoding
\def\DeclareFontEncoding@#1#2#3{%
  \expandafter
  \ifx\csname T@#1\endcsname\relax
     \def\cdp@elt{\noexpand\cdp@elt}%
     \xdef\cdp@list{\cdp@list\cdp@elt{#1}%
                    {\default@family}{\default@series}%
                    {\default@shape}}%
     \expandafter\let\csname#1-cmd\endcsname\@changed@cmd
  \else
     \@font@info{Redeclaring font encoding #1}%
  \fi
  \global\@namedef{T@#1}{#2}%
  \global\@namedef{M@#1}{\default@M#3}%
  \xdef\LastDeclaredEncoding{#1}%
  }
\@onlypreamble\DeclareFontEncoding@
\def\LastDeclaredEncoding{}
\def\DeclareFontSubstitution#1#2#3#4{%
  \expandafter
  \ifx\csname T@#1\endcsname\relax
    \@latex@error{Encoding scheme  `#1' unknown}\@eha
  \else
    \begingroup
       \edef\reserved@a{#1}%
       \toks@{}%
       \def\cdp@elt##1##2##3##4{%
          \def\reserved@b{##1}%
          \ifx\reserved@a\reserved@b
             \addto@hook\toks@{\cdp@elt{##1}{#2}{#3}{#4}}%
          \else
             \addto@hook\toks@{\cdp@elt{##1}{##2}{##3}{##4}}%
          \fi}%
        \cdp@list
        \xdef\cdp@list{\the\toks@}%
    \endgroup
    \global
    \@namedef{D@#1}{%
           \def\default@family{#2}%
           \def\default@series{#3}%
           \def\default@shape{#4}%
           }%
  \fi
 }
\@onlypreamble\DeclareFontSubstitution
\def\DeclareFontEncodingDefaults#1#2{%
  \ifx\relax#1\else
    \ifx\default@T\@empty\else
      \@font@info{Overwriting encoding scheme text defaults}%
    \fi
    \gdef\default@T{#1}%
  \fi
  \ifx\relax#2\else
    \ifx\default@M\@empty\else
      \@font@info{Overwriting encoding scheme math defaults}%
    \fi
    \gdef\default@M{#2}%
  \fi
}
\@onlypreamble\DeclareFontEncodingDefaults
\let\default@T\@empty
\let\default@M\@empty
\def\DeclareEncodingSubset#1#2{%
  \DeclareEncodingSubset@aux{#1}#2*\DeclareEncodingSubset@aux
}
\def\DeclareEncodingSubset@aux#1#2*#3\DeclareEncodingSubset@aux#4{%
  \expandafter\ifx\expandafter X\detokenize{#3}X%
    \@DeclareEncodingSubset{#1}{#2}{#4}%
  \else
    \@DeclareEncodingSubset{#1}{#2LF}{#4}%
    \@DeclareEncodingSubset{#1}{#2TLF}{#4}%
    \@DeclareEncodingSubset{#1}{#2OsF}{#4}%
    \@DeclareEncodingSubset{#1}{#2TOsF}{#4}%
  \fi
}
\def\@DeclareEncodingSubset#1#2#3{%
   \@ifundefined{#1:#2}%
     {\@font@info{Setting #2 sub-encoding to #1/#3}}%
     {\@font@info{Changing #2 sub-encoding to #1/#3}}%
     \global\@namedef{#1:#2}{#3}}

\def\CheckEncodingSubset#1#2#3#4#5{%
    \ifnum #4>%
      \expandafter\ifx\csname #2:\f@family\endcsname\relax
        0\csname #2:?\endcsname
      \else
        \csname #2:\f@family\endcsname
      \fi
   \relax
   \expandafter\@firstoftwo
  \else
   \expandafter\@secondoftwo
 \fi
  {#1{#2}}{#3}%
  #5%
}
\def\DeclarePreloadSizes#1#2#3#4#5{%
 \@ifundefined{T@#1}%
   {\@latex@error{Encoding scheme  `#1' unknown}\@eha}%
   {%
   \begingroup
    \def\reserved@f##1,{%
        \if>##1>%
          \let\reserved@f\relax
        \else
          \xdef\font@name{\csname#1/#2/#3/#4/##1\endcsname}%
          \pickup@font
          \global\expandafter\let\font@name\relax
        \fi
        \reserved@f}%
     \reserved@f#5,,%
   \endgroup
   }%
}
\@onlypreamble\DeclarePreloadSizes
\newif\ifmath@fonts \math@fontstrue
\def\DeclareMathSizes{%
  \@ifstar{\@DeclareMathSizes\math@fontsfalse}%
          {\@DeclareMathSizes{}}}
\@onlypreamble\DeclareMathSizes
\def\@DeclareMathSizes #1#2#3#4#5{%
  \@defaultunits\dimen@ #2pt\relax\@nnil
  \if $#3$%
    \expandafter\let\csname S@\strip@pt\dimen@\endcsname\math@fontsfalse
  \else
    \@defaultunits\dimen@ii #3pt\relax\@nnil
    \@defaultunits\@tempdima #4pt\relax\@nnil
    \@defaultunits\@tempdimb #5pt\relax\@nnil
    \toks@{#1}%
    \expandafter\xdef\csname S@\strip@pt\dimen@\endcsname{%
      \gdef\noexpand\tf@size{\strip@pt\dimen@ii}%
      \gdef\noexpand\sf@size{\strip@pt\@tempdima}%
      \gdef\noexpand\ssf@size{\strip@pt\@tempdimb}%
      \the\toks@
    }%
  \fi
}%
\@onlypreamble\@DeclareMathSizes
\DeclareRobustCommand\fontencoding[1]{%
    \expandafter\ifx\csname T@#1\endcsname\relax
      \@latex@error{Encoding scheme `#1' unknown}\@eha
    \else
      \edef\f@encoding{#1}%
      \ifx\cf@encoding\f@encoding
        \let\enc@update\relax
      \else
        \let\enc@update\@@enc@update
      \fi
    \fi
}
\def\@@enc@update{%
          \expandafter
          \let
            \csname\cf@encoding -cmd\endcsname
            \@changed@cmd
          \expandafter
          \let
            \csname\f@encoding-cmd\endcsname
            \@current@cmd
        \default@T
        \csname T@\f@encoding\endcsname
        \csname D@\f@encoding\endcsname
        \let\enc@update\relax
        \let\cf@encoding\f@encoding
}
\let\enc@update\relax
\DeclareRobustCommand\fontfamily[1]{\edef\f@family{#1}}
\DeclareRobustCommand\usefont[4]{\fontencoding{#1}%
   \edef\f@family{#2}%
   \set@target@series{#3}%
   \edef\f@shape{#4}%
   \let\delayed@f@adjustment\@empty
   \selectfont
   \ignorespaces}
\DeclareRobustCommand\linespread[1]
   {\set@fontsize{#1}\f@size\f@baselineskip}
\DeclareRobustCommand\fontsize[2]
   {\set@fontsize\baselinestretch{#1}{#2}}
\let\f@family\@empty
\let\f@series\@empty
\let\f@shape\@empty
\let\f@size\@empty
\let\f@baselineskip\@empty
\let\f@linespread\@empty
\let\f@encoding\@empty
\let\cf@encoding\@empty
\def\@defaultunits{\afterassignment\remove@to@nnil}
\begingroup
  \catcode`P=12
  \catcode`T=12
  \lowercase{
    \def\x{\def\rem@pt##1.##2PT{##1\ifnum##2>\z@.##2\fi}}}
  \expandafter\endgroup\x
\def\strip@pt{\expandafter\rem@pt\the}
\DeclareRobustCommand\mathversion[1]
         {\@nomath\mathversion
          \expandafter\ifx\csname mv@#1\endcsname\relax
          \@latex@error{Math version `#1' is not defined}\@eha\else
          \ifcsname mv@\math@version @frozen\endcsname
            \expandafter\let
            \csname mv@\math@version @frozen\expandafter\endcsname
            \csname mv@\math@version\endcsname
          \fi
          \edef\math@version{#1}%
          \gdef\glb@currsize{}%
          \aftergroup\glb@settings
          \fi}
\let\frozen@everymath\everymath
\let\frozen@everydisplay\everydisplay
\newtoks\everymath
\newtoks\everydisplay

\frozen@everydisplay = {%
  \aftergroup\@ignoretrue  \aftergroup\ignorespaces
  \check@mathfonts
  \the\everydisplay}

\frozen@everymath = {%
  \aftergroup\@ignorefalse
  \check@mathfonts
  \the\everymath}
\let\curr@math@size\@empty
\def\pickup@font{%
    \expandafter \ifx \font@name \relax
       \define@newfont
    \fi}
{\catcode`\/=12
\gdef\split@name#1/#2/#3/#4/#5\@nil{\def\f@encoding{#1}%
                                    \def\f@family{#2}%
                                    \def\f@series{#3}%
                                    \def\f@shape{#4}%
                                    \def\f@size{#5}}}
\def\curr@fontshape{\f@encoding/\f@family/\f@series/\f@shape}
\def\define@newfont{%
  \begingroup
    \let\typeout\@font@info
    \escapechar\m@ne
    \expandafter\expandafter\expandafter
       \split@name\expandafter\string\font@name\@nil
      \try@load@fontshape % try always
    \expandafter\ifx
       \csname\curr@fontshape\endcsname \relax
      \wrong@fontshape\else
      \extract@font\fi
  \endgroup}
\def\try@load@fontshape{%
   \expandafter
   \ifx\csname \f@encoding+\f@family\endcsname\relax
     \@font@info{Trying to load font information for
                   \f@encoding+\f@family}%
    \global\expandafter\let
       \csname\f@encoding+\f@family\endcsname\@empty
     \nfss@catcodes
     \let\nfss@catcodes\relax
     \edef\reserved@a{%
       \lowercase{%
         \noexpand\InputIfFileExists{\f@encoding\f@family.fd}}}%
     \reserved@a\relax
          {\@input@{\f@encoding\f@family.fd}}%
   \fi}
\def\nfss@catcodes{%
     \makeatletter
     \catcode`\ 9%
     \catcode`\^^I9%
     \catcode`\^^M9%
     \catcode`\\\z@
     \catcode`\{\@ne
     \catcode`\}\tw@
     \catcode`\#6%
     \catcode`\^7%
     \catcode`\%14%
   \@makeother\<%
   \@makeother\>%
   \@makeother\*%
   \@makeother\.%
   \@makeother\-%
   \@makeother\/%
   \@makeother\[%
   \@makeother\]%
   \@makeother\`%
   \@makeother\'%
   \@makeother\"%
}
\def\LoadFontDefinitionFile#1#2{%
  \begingroup
    \edef\f@encoding{#1}%
    \edef\f@family{#2}%
    \try@load@fontshape
  \endgroup
}

\begingroup
\nfss@catcodes
\gdef\DeclareFontFamilySubstitution#1#2#3{%
   \LoadFontDefinitionFile{#1}{#2}%
   \LoadFontDefinitionFile{#1}{#3}%
   \DeclareFontShape{#1}{#2}{m}{it}{<->ssub * #3/m/it}{}%
   \DeclareFontShape{#1}{#2}{m}{n}{<->ssub * #3/m/n}{}%
   \DeclareFontShape{#1}{#2}{m}{sc}{<->ssub * #3/m/sc}{}%
   \DeclareFontShape{#1}{#2}{m}{sl}{<->ssub * #3/m/sl}{}%
   \DeclareFontShape{#1}{#2}{m}{sw}{<->ssub * #3/m/sw}{}%
   \DeclareFontShape{#1}{#2}{m}{scit}{<->ssub * #3/m/scit}{}%
   \DeclareFontShape{#1}{#2}{m}{scsl}{<->ssub * #3/m/scsl}{}%
   \DeclareFontShape{#1}{#2}{b}{it}{<->ssub * #3/b/it}{}%
   \DeclareFontShape{#1}{#2}{b}{n}{<->ssub * #3/b/n}{}%
   \DeclareFontShape{#1}{#2}{b}{scit}{<->ssub * #3/b/scit}{}%
   \DeclareFontShape{#1}{#2}{b}{scsl}{<->ssub * #3/b/scsl}{}%
   \DeclareFontShape{#1}{#2}{b}{sc}{<->ssub * #3/b/sc}{}%
   \DeclareFontShape{#1}{#2}{b}{sl}{<->ssub * #3/b/sl}{}%
   \DeclareFontShape{#1}{#2}{b}{sw}{<->ssub * #3/b/sw}{}%
   \DeclareFontShape{#1}{#2}{bx}{it}{<->ssub * #3/bx/it}{}%
   \DeclareFontShape{#1}{#2}{bx}{n}{<->ssub * #3/bx/n}{}%
   \DeclareFontShape{#1}{#2}{bx}{scit}{<->ssub * #3/bx/scit}{}%
   \DeclareFontShape{#1}{#2}{bx}{scsl}{<->ssub * #3/bx/scsl}{}%
   \DeclareFontShape{#1}{#2}{bx}{sc}{<->ssub * #3/bx/sc}{}%
   \DeclareFontShape{#1}{#2}{bx}{sl}{<->ssub * #3/bx/sl}{}%
   \DeclareFontShape{#1}{#2}{bx}{sw}{<->ssub * #3/bx/sw}{}%
}
\endgroup
\def\DeclareErrorFont#1#2#3#4#5{%
      \xdef\error@fontshape{%
          \noexpand\expandafter\noexpand\split@name\noexpand\string
          \expandafter\noexpand\csname#1/#2/#3/#4/#5\endcsname
          \noexpand\@nil}%
      \gdef\default@family{#2}%
      \gdef\default@series{#3}%
      \gdef\default@shape{#4}%
}
\@onlypreamble\DeclareErrorFont
\def\wrong@fontshape{%
    \csname D@\f@encoding\endcsname   % install defaults if in math
    \edef\reserved@a{\csname\curr@fontshape\endcsname}%
  \ifx\last@fontshape\reserved@a
     \errmessage{Corrupted NFSS tables}%
     \error@fontshape
  \else
    \let\f@shape\default@shape
    \expandafter\ifx\csname\curr@fontshape\endcsname\relax
       \let\f@series\default@series
        \expandafter
          \ifx\csname\curr@fontshape\endcsname\relax
           \let\f@family\default@family
           \begingroup
              \try@load@fontshape
           \endgroup
        \fi \fi
  \fi
     \@font@warning{Font shape `\expandafter\string\reserved@a'
                     \expandafter\@gobble\string\@undefined\MessageBreak
                   using `\curr@fontshape' instead\@wrong@font@char}%
    \global\let\last@fontshape\reserved@a
    \gdef\@defaultsubs{%
      \@font@warning{Some font shapes were not available, defaults
                      substituted.\@gobbletwo}}%
    \global\expandafter\expandafter\expandafter\let
       \expandafter\reserved@a
           \csname\curr@fontshape\endcsname
    \xdef\font@name{%
      \csname\curr@fontshape/\f@size\endcsname}%
    \pickup@font}
\let\@wrong@font@char\@empty
\let\@defaultsubs\relax
\def\strip@prefix#1>{}
\let\install@mathalphabet\gdef
\let\math@fonts\@empty
\def\extract@alph@from@version#1#2#3{%
     \def\reserved@a##1\install@mathalphabet#3##2##3\@nil{%
         \def\reserved@b{##2}%
         \def\reserved@c####1{\gdef#1{##1####1##3}}}%
     \expandafter\reserved@a#1\@nil
     \def\reserved@a\select@group#3##1##2\@nil{%
        \reserved@c{%
           \getanddefine@fonts{#2}##2%
           \install@mathalphabet#3{%
              \relax\ifmmode \else \non@alpherr#3\fi
              \use@mathgroup##1{#2}}}%
       \gdef#3{\relax\ifmmode \else \non@alpherr#3\fi
               \use@mathgroup##1{#2}}}%
     \expandafter\reserved@a\reserved@b\@nil
     }
\let\math@bgroup\bgroup
\def\math@egroup#1{#1\egroup}
\gdef\calculate@math@sizes{%
  \@font@info{Calculating\space math\space sizes\space for\space
              size\space <\f@size>}%
  \dimen@\f@size \p@
  \@tempdimb \defaultscriptratio \dimen@
  \dimen@ \defaultscriptscriptratio \dimen@
  \expandafter\xdef\csname S@\f@size\endcsname{%
    \gdef\noexpand\tf@size{\f@size}%
    \gdef\noexpand\sf@size{\strip@pt\@tempdimb}%
    \gdef\noexpand\ssf@size{\strip@pt\dimen@}%
    \noexpand\math@fontstrue}}
\def\defaultscriptratio{.7}
\def\defaultscriptscriptratio{.5}
\ifx\noaccents@\@undefined
  \let\noaccents@\@empty
\fi
\ifx\XeTeXcharclass\@undefined
\DeclareRobustCommand\showhyphens[1]{%
  \setbox0\vbox{%
    \color@begingroup
    \everypar{}%
    \parfillskip\z@skip\hsize\maxdimen
    \normalfont
    \pretolerance\m@ne\tolerance\m@ne\hbadness\z@\showboxdepth\z@\ #1%
    \color@endgroup}}
\else
\DeclareRobustCommand\showhyphens[1]{%
  \setbox0\vbox{%
    \usefont{TU}{lmr}{m}{n}%
    \hsize 1sp %
    \hbadness\@M
    \hfuzz\maxdimen
    \tracingonline\z@
    \tracinglostchars\z@
    \everypar={}%
    \leftskip\z@skip
    \rightskip\z@skip
    \parfillskip\z@skip
    \hyphenpenalty=-\@M
    \pretolerance\m@ne
    \interlinepenalty\z@
    \clubpenalty\z@
    \widowpenalty\z@
    \brokenpenalty1127 %
    \setbox\z@\hbox{}%
    \noindent
    \hskip\z@skip
    #1%
    \par
     \loop
     \@tempswafalse
     \ifnum\lastnodetype=11\unskip\@tempswatrue\fi
     \ifnum\lastnodetype=12\unkern\@tempswatrue\fi
     \ifnum\lastnodetype=13 %
      \count@\lastpenalty
      \unpenalty\@tempswatrue
    \fi
    \ifnum\lastnodetype=\@ne
     \setbox\tw@\lastbox\@tempswatrue
     \setbox0\hbox{\unhbox\tw@\unskip\unskip\unpenalty
                   \ifnum\count@=1127 \else\ \fi
                   \unhbox0}%
     \count@\z@
    \fi
    \if@tempswa
    \repeat
   \hbadness\z@
   \hsize\maxdimen
   \showboxdepth\z@
   \tolerance\m@ne
   \hyphenpenalty\z@
   \noindent\unhbox\z@
}}
\fi
\long\def\addto@hook#1#2{#1\expandafter{\the#1#2}}
 \def\@vpt{5}
 \def\@vipt{6}
 \def\@viipt{7}
 \def\@viiipt{8}
 \def\@ixpt{9}
 \def\@xpt{10}
 \def\@xipt{10.95}
 \def\@xiipt{12}
 \def\@xivpt{14.4}
 \def\@xviipt{17.28}
 \def\@xxpt{20.74}
 \def\@xxvpt{24.88}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% From File: ltfssaxes.dtx
%% Copyright (C) 2019-2020 Frank Mittelbach
\message{NFSS axes,}
\def\DeclareFontSeriesChangeRule#1#2#3#4{%
  \@namedef{series@#1@#2}{{#3}{#4}}}
\DeclareFontSeriesChangeRule {bc}{b}{bc}{}
\DeclareFontSeriesChangeRule {bc}{c}{bc}{}
\DeclareFontSeriesChangeRule {bc}{eb}{ebc}{}
\DeclareFontSeriesChangeRule {bc}{ec}{bec} {bc}
\DeclareFontSeriesChangeRule {bc}{el}{elc}{}
\DeclareFontSeriesChangeRule {bc}{l}{lc}{}
\DeclareFontSeriesChangeRule {bc}{sb}{sbc}{}
\DeclareFontSeriesChangeRule {bc}{sc}{bsc} {bc}
\DeclareFontSeriesChangeRule {bc}{sl}{slc}{}
\DeclareFontSeriesChangeRule {bc}{ub}{ubc}{}
\DeclareFontSeriesChangeRule {bc}{ul}{ulc}{}
\DeclareFontSeriesChangeRule {bc}{x}{bx}{}
\DeclareFontSeriesChangeRule {bx}{b}{bx}{}
\DeclareFontSeriesChangeRule {bx}{c}  {bc}  {bx} %<-----
\DeclareFontSeriesChangeRule {bx}{eb}{ebx}{}
\DeclareFontSeriesChangeRule {bx}{ec}  {bec}  {bx} %<-----
\DeclareFontSeriesChangeRule {bx}{el}{elx}{}
\DeclareFontSeriesChangeRule {bx}{l}{lx}{}
\DeclareFontSeriesChangeRule {bx}{sb} {sbx} {}
\DeclareFontSeriesChangeRule {bx}{sc}  {bsc}  {bx} %<-----
\DeclareFontSeriesChangeRule {bx}{sl}{slx}  {}
\DeclareFontSeriesChangeRule {bx}{ub}{ubx}{}
\DeclareFontSeriesChangeRule {bx}{ul}{ulx}{}
\DeclareFontSeriesChangeRule {bx}{x}{bx}{}
\DeclareFontSeriesChangeRule {b}{bx} {bx}  {b} %<-----
\DeclareFontSeriesChangeRule {b}{c}  {bc}  {b} %<-----
\DeclareFontSeriesChangeRule {b}{ec}  {bec}  {b} %<-----
\DeclareFontSeriesChangeRule {b}{sb} {sb}  {b} %<-----
\DeclareFontSeriesChangeRule {b}{sc}  {bsc}  {b} %<-----
\DeclareFontSeriesChangeRule {b}{x}  {bx}  {b} %<-----
\DeclareFontSeriesChangeRule {c}{bx} {bx}  {b}  %<-----
\DeclareFontSeriesChangeRule {c}{b}{bc}{}
\DeclareFontSeriesChangeRule {c}{eb}{ebc}{}
\DeclareFontSeriesChangeRule {c}{el}{elc}{}
\DeclareFontSeriesChangeRule {c}{l}{lc}{}
\DeclareFontSeriesChangeRule {c}{sb}{sbc}{}
\DeclareFontSeriesChangeRule {c}{sl}{slc}{}
\DeclareFontSeriesChangeRule {c}{ub}{ubc}{}
\DeclareFontSeriesChangeRule {c}{ul}{ulc}{}
\DeclareFontSeriesChangeRule {c}{x}{x}{m}               %<-----
\DeclareFontSeriesChangeRule {ebc}{b}{bc}{}
\DeclareFontSeriesChangeRule {ebc}{c}{ebc}{}
\DeclareFontSeriesChangeRule {ebc}{eb}{ebc}{}
\DeclareFontSeriesChangeRule {ebc}{ec}{ebec}{ebc}
\DeclareFontSeriesChangeRule {ebc}{el}{elc}{}
\DeclareFontSeriesChangeRule {ebc}{l}{lc}{}
\DeclareFontSeriesChangeRule {ebc}{sb}{sbc}{}
\DeclareFontSeriesChangeRule {ebc}{sc}{ebsc}{ebc}
\DeclareFontSeriesChangeRule {ebc}{sl}{slc}{}
\DeclareFontSeriesChangeRule {ebc}{ub}{ubc}{}
\DeclareFontSeriesChangeRule {ebc}{ul}{ulc}{}
\DeclareFontSeriesChangeRule {ebc}{x}{ebx}{}
\DeclareFontSeriesChangeRule {ec}{bx} {bx}  {b}  %<-----
\DeclareFontSeriesChangeRule {ec}{b}{bec}{}
\DeclareFontSeriesChangeRule {ec}{eb}{ebec}{}
\DeclareFontSeriesChangeRule {ec}{el}{elec}{}
\DeclareFontSeriesChangeRule {ec}{l}{lec}{}
\DeclareFontSeriesChangeRule {ec}{sb}{sbec}{}
\DeclareFontSeriesChangeRule {ec}{sl}{slec}{}
\DeclareFontSeriesChangeRule {ec}{ub}{ubec}{}
\DeclareFontSeriesChangeRule {ec}{ul}{ulec}{}
\DeclareFontSeriesChangeRule {ec}{x}{x}{m}              %<-----
\DeclareFontSeriesChangeRule {sc}{bx} {bx}  {b}  %<-----
\DeclareFontSeriesChangeRule {sc}{b}{bsc}{}
\DeclareFontSeriesChangeRule {sc}{eb}{ebsc}{}
\DeclareFontSeriesChangeRule {sc}{el}{elsc}{}
\DeclareFontSeriesChangeRule {sc}{l}{lsc}{}
\DeclareFontSeriesChangeRule {sc}{sb}{sbsc}{}
\DeclareFontSeriesChangeRule {sc}{sl}{slsc}{}
\DeclareFontSeriesChangeRule {sc}{ub}{ubsc}{}
\DeclareFontSeriesChangeRule {sc}{ul}{ulsc}{}
\DeclareFontSeriesChangeRule {sc}{x}{x}{m}              %<-----
\DeclareFontSeriesChangeRule {ebx}{b}{bx}{}
\DeclareFontSeriesChangeRule {ebx}{c}{ebc}{}
\DeclareFontSeriesChangeRule {ebx}{eb}{ebx}{}
\DeclareFontSeriesChangeRule {ebx}{ec}{ebec}{}
\DeclareFontSeriesChangeRule {ebx}{el}{elx}{}
\DeclareFontSeriesChangeRule {ebx}{l}{lx}{}
\DeclareFontSeriesChangeRule {ebx}{sb}{sbx}{}
\DeclareFontSeriesChangeRule {ebx}{sc}{ebsc}{}
\DeclareFontSeriesChangeRule {ebx}{sl}{slx}{}
\DeclareFontSeriesChangeRule {ebx}{ub}{ubx}{}
\DeclareFontSeriesChangeRule {ebx}{ul}{ulx}{}
\DeclareFontSeriesChangeRule {ebx}{x}{ebx}{}
\DeclareFontSeriesChangeRule {eb}{c}{ebc}{}
\DeclareFontSeriesChangeRule {eb}{ec}{ebec}{}
\DeclareFontSeriesChangeRule {eb}{sc}{ebsc}{}
\DeclareFontSeriesChangeRule {eb}{x}{ebx}{}
\DeclareFontSeriesChangeRule {elc}{b}{bc}{}
\DeclareFontSeriesChangeRule {elc}{c}{elc}{}
\DeclareFontSeriesChangeRule {elc}{eb}{ebc}{}
\DeclareFontSeriesChangeRule {elc}{ec}{elec}{}
\DeclareFontSeriesChangeRule {elc}{el}{elc}{}
\DeclareFontSeriesChangeRule {elc}{l}{lc}{}
\DeclareFontSeriesChangeRule {elc}{sb}{sbc}{}
\DeclareFontSeriesChangeRule {elc}{sc}{elsc}{}
\DeclareFontSeriesChangeRule {elc}{sl}{slc}{}
\DeclareFontSeriesChangeRule {elc}{ub}{ubc}{}
\DeclareFontSeriesChangeRule {elc}{ul}{ulc}{}
\DeclareFontSeriesChangeRule {elc}{x}{elx}{}
\DeclareFontSeriesChangeRule {elx}{b}{bx}{}
\DeclareFontSeriesChangeRule {elx}{c}{elc}{}
\DeclareFontSeriesChangeRule {elx}{eb}{ebx}{}
\DeclareFontSeriesChangeRule {elx}{ec}{elec}{}
\DeclareFontSeriesChangeRule {elx}{el}{elx}{}
\DeclareFontSeriesChangeRule {elx}{l}{lx}{}
\DeclareFontSeriesChangeRule {elx}{sb}{sbx}{}
\DeclareFontSeriesChangeRule {elx}{sc}{elsc}{}
\DeclareFontSeriesChangeRule {elx}{sl}{slx}{}
\DeclareFontSeriesChangeRule {elx}{ub}{ubx}{}
\DeclareFontSeriesChangeRule {elx}{ul}{ulx}{}
\DeclareFontSeriesChangeRule {elx}{x}{elx}{}
\DeclareFontSeriesChangeRule {el}{c}{elc}{}
\DeclareFontSeriesChangeRule {el}{ec}{elec}{}
\DeclareFontSeriesChangeRule {el}{sc}{elsc}{}
\DeclareFontSeriesChangeRule {el}{x}{elx}{}
\DeclareFontSeriesChangeRule {lc}{b}{bc}{}
\DeclareFontSeriesChangeRule {lc}{c}{lc}{}
\DeclareFontSeriesChangeRule {lc}{eb}{ebc}{}
\DeclareFontSeriesChangeRule {lc}{ec}{lec}{}
\DeclareFontSeriesChangeRule {lc}{el}{elc}{}
\DeclareFontSeriesChangeRule {lc}{l}{lc}{}
\DeclareFontSeriesChangeRule {lc}{sb}{sbc}{}
\DeclareFontSeriesChangeRule {lc}{sc}{lsc}{}
\DeclareFontSeriesChangeRule {lc}{sl}{slc}{}
\DeclareFontSeriesChangeRule {lc}{ub}{ubc}{}
\DeclareFontSeriesChangeRule {lc}{ul}{ulc}{}
\DeclareFontSeriesChangeRule {lc}{x}{lx}{}
\DeclareFontSeriesChangeRule {lx}{b}{bx}{}
\DeclareFontSeriesChangeRule {lx}{c}{lc}{}
\DeclareFontSeriesChangeRule {lx}{eb}{ebx}{}
\DeclareFontSeriesChangeRule {lx}{ec}{lec}{}
\DeclareFontSeriesChangeRule {lx}{el}{elx}{}
\DeclareFontSeriesChangeRule {lx}{l}{lx}{}
\DeclareFontSeriesChangeRule {lx}{sb}{sbx}{}
\DeclareFontSeriesChangeRule {lx}{sc}{lsc}{}
\DeclareFontSeriesChangeRule {lx}{sl}{slx}{}
\DeclareFontSeriesChangeRule {lx}{ub}{ubx}{}
\DeclareFontSeriesChangeRule {lx}{ul}{ulx}{}
\DeclareFontSeriesChangeRule {lx}{x}{lx}{}
\DeclareFontSeriesChangeRule {l}{bx} {bx}  {b} %<-----
\DeclareFontSeriesChangeRule {l}{b}  {b}   {bx} %<-----
\DeclareFontSeriesChangeRule {l}{c}  {lc}  {l}  % ? %<-----
\DeclareFontSeriesChangeRule {l}{ec}  {lec}  {l}  % ? %<-----
\DeclareFontSeriesChangeRule {l}{sb} {sb}  {b}  % ? %<-----
\DeclareFontSeriesChangeRule {l}{sc}  {lsc}  {l}  % ? %<-----
\DeclareFontSeriesChangeRule {l}{x}  {lx}  {l}  % ? %<-----
\DeclareFontSeriesChangeRule {m}{bx} {bx} {b}    %<-----
\DeclareFontSeriesChangeRule {m}{b}  {b}  {bx} %<-----
\DeclareFontSeriesChangeRule {m}{c}  {c}  {m} %<-----
\DeclareFontSeriesChangeRule {m}{ec}  {ec}  {m} %<-----
\DeclareFontSeriesChangeRule {m}{l}  {l}  {m} %<-----
\DeclareFontSeriesChangeRule {m}{sb} {sb} {b} %<-----
\DeclareFontSeriesChangeRule {m}{sc}  {sc}  {m} %<-----
\DeclareFontSeriesChangeRule {m}{x}  {x}  {m} %<-----
\DeclareFontSeriesChangeRule {sbc}{b}{bc}{}
\DeclareFontSeriesChangeRule {sbc}{c}{sbc}{}
\DeclareFontSeriesChangeRule {sbc}{eb}{ebc}{}
\DeclareFontSeriesChangeRule {sbc}{ec}{sbec}{sbc}
\DeclareFontSeriesChangeRule {sbc}{el}{elc}{}
\DeclareFontSeriesChangeRule {sbc}{l}{lc}{}
\DeclareFontSeriesChangeRule {sbc}{sb}{sbc}{}
\DeclareFontSeriesChangeRule {sbc}{sc}{sbsc}{sbc}
\DeclareFontSeriesChangeRule {sbc}{sl}{slc}{}
\DeclareFontSeriesChangeRule {sbc}{ub}{ubc}{}
\DeclareFontSeriesChangeRule {sbc}{ul}{ulc}{}
\DeclareFontSeriesChangeRule {sbc}{x}{sbx}{}
\DeclareFontSeriesChangeRule {sbx}{b}{bx}{}
\DeclareFontSeriesChangeRule {sbx}{c}{sbc}{}
\DeclareFontSeriesChangeRule {sbx}{eb}{ebx}{}
\DeclareFontSeriesChangeRule {sbx}{ec}{sbec}{}
\DeclareFontSeriesChangeRule {sbx}{el}{elx}{}
\DeclareFontSeriesChangeRule {sbx}{l}{lx}{}
\DeclareFontSeriesChangeRule {sbx}{sb}{sbx}{}
\DeclareFontSeriesChangeRule {sbx}{sc}{sbsc}{}
\DeclareFontSeriesChangeRule {sbx}{sl}{slx}{}
\DeclareFontSeriesChangeRule {sbx}{ub}{ubx}{}
\DeclareFontSeriesChangeRule {sbx}{ul}{ulx}{}
\DeclareFontSeriesChangeRule {sbx}{x}{sbx}{}
\DeclareFontSeriesChangeRule {sb}{c}  {sbc} {bc} %? %<-----
\DeclareFontSeriesChangeRule {sb}{ec}  {sbec} {sbc} %? %<-----
\DeclareFontSeriesChangeRule {sb}{sc}  {sbsc} {sbc} %? %<-----
\DeclareFontSeriesChangeRule {sb}{x}  {sbx} {bx} %? %<-----
\DeclareFontSeriesChangeRule {slc}{b}{bc}{}
\DeclareFontSeriesChangeRule {slc}{c}{slc}{}
\DeclareFontSeriesChangeRule {slc}{eb}{ebc}{}
\DeclareFontSeriesChangeRule {slc}{ec}{slec}{}
\DeclareFontSeriesChangeRule {slc}{el}{elc}{}
\DeclareFontSeriesChangeRule {slc}{l}{lc}{}
\DeclareFontSeriesChangeRule {slc}{sb}{sbc}{}
\DeclareFontSeriesChangeRule {slc}{sc}{slsc}{}
\DeclareFontSeriesChangeRule {slc}{sl}{slc}{}
\DeclareFontSeriesChangeRule {slc}{ub}{ubc}{}
\DeclareFontSeriesChangeRule {slc}{ul}{ulc}{}
\DeclareFontSeriesChangeRule {slc}{x}{slx}{}
\DeclareFontSeriesChangeRule {slx}{b}{bx}{}
\DeclareFontSeriesChangeRule {slx}{c}{slc}{}
\DeclareFontSeriesChangeRule {slx}{eb}{ebx}{}
\DeclareFontSeriesChangeRule {slx}{ec}{slec}{}
\DeclareFontSeriesChangeRule {slx}{el}{elx}{}
\DeclareFontSeriesChangeRule {slx}{l}{lx}{}
\DeclareFontSeriesChangeRule {slx}{sb}{sbx}{}
\DeclareFontSeriesChangeRule {slx}{sc}{slsc}{}
\DeclareFontSeriesChangeRule {slx}{sl}{slx}{}
\DeclareFontSeriesChangeRule {slx}{ub}{ubx}{}
\DeclareFontSeriesChangeRule {slx}{ul}{ulx}{}
\DeclareFontSeriesChangeRule {slx}{x}{slx}{}
\DeclareFontSeriesChangeRule {sl}{c}{slc}{}
\DeclareFontSeriesChangeRule {sl}{ec}{slec}{}
\DeclareFontSeriesChangeRule {sl}{sc}{slsc}{}
\DeclareFontSeriesChangeRule {sl}{x}{slx}{}
\DeclareFontSeriesChangeRule {ubc}{b}{bc}{}
\DeclareFontSeriesChangeRule {ubc}{c}{ubc}{}
\DeclareFontSeriesChangeRule {ubc}{eb}{ebc}{}
\DeclareFontSeriesChangeRule {ubc}{ec}{ubec}{}
\DeclareFontSeriesChangeRule {ubc}{el}{elc}{}
\DeclareFontSeriesChangeRule {ubc}{l}{lc}{}
\DeclareFontSeriesChangeRule {ubc}{sb}{sbc}{}
\DeclareFontSeriesChangeRule {ubc}{sc}{ubsc}{}
\DeclareFontSeriesChangeRule {ubc}{sl}{slc}{}
\DeclareFontSeriesChangeRule {ubc}{ub}{ubc}{}
\DeclareFontSeriesChangeRule {ubc}{ul}{ulc}{}
\DeclareFontSeriesChangeRule {ubc}{x}{ubx}{}
\DeclareFontSeriesChangeRule {ubx}{b}{bx}{}
\DeclareFontSeriesChangeRule {ubx}{c}{ubc}{}
\DeclareFontSeriesChangeRule {ubx}{eb}{ebx}{}
\DeclareFontSeriesChangeRule {ubx}{ec}{ubec}{}
\DeclareFontSeriesChangeRule {ubx}{el}{elx}{}
\DeclareFontSeriesChangeRule {ubx}{l}{lx}{}
\DeclareFontSeriesChangeRule {ubx}{sb}{sbx}{}
\DeclareFontSeriesChangeRule {ubx}{sc}{ubsc}{}
\DeclareFontSeriesChangeRule {ubx}{sl}{slx}{}
\DeclareFontSeriesChangeRule {ubx}{ub}{ubx}{}
\DeclareFontSeriesChangeRule {ubx}{ul}{ulx}{}
\DeclareFontSeriesChangeRule {ubx}{x}{ubx}{}
\DeclareFontSeriesChangeRule {ub}{c}{ubc}{}
\DeclareFontSeriesChangeRule {ub}{ec}{ubec}{}
\DeclareFontSeriesChangeRule {ub}{sc}{ubsc}{}
\DeclareFontSeriesChangeRule {ub}{x}{ubx}{}
\DeclareFontSeriesChangeRule {ulc}{b}{bc}{}
\DeclareFontSeriesChangeRule {ulc}{c}{ulc}{}
\DeclareFontSeriesChangeRule {ulc}{eb}{ebc}{}
\DeclareFontSeriesChangeRule {ulc}{ec}{ulec}{ulc}
\DeclareFontSeriesChangeRule {ulc}{el}{elc}{}
\DeclareFontSeriesChangeRule {ulc}{l}{lc}{}
\DeclareFontSeriesChangeRule {ulc}{sb}{sbc}{}
\DeclareFontSeriesChangeRule {ulc}{sc}{ulsc}{ulc}
\DeclareFontSeriesChangeRule {ulc}{sl}{slc}{}
\DeclareFontSeriesChangeRule {ulc}{ub}{ubc}{}
\DeclareFontSeriesChangeRule {ulc}{ul}{ulc}{}
\DeclareFontSeriesChangeRule {ulc}{x}{ulx}{}
\DeclareFontSeriesChangeRule {ulx}{b}{bx}{}
\DeclareFontSeriesChangeRule {ulx}{c}{ulc}{}
\DeclareFontSeriesChangeRule {ulx}{eb}{ebx}{}
\DeclareFontSeriesChangeRule {ulx}{ec}{ulec}{}
\DeclareFontSeriesChangeRule {ulx}{el}{elx}{}
\DeclareFontSeriesChangeRule {ulx}{l}{lx}{}
\DeclareFontSeriesChangeRule {ulx}{sb}{sbx}{}
\DeclareFontSeriesChangeRule {ulx}{sc}{ulsc}{}
\DeclareFontSeriesChangeRule {ulx}{sl}{slx}{}
\DeclareFontSeriesChangeRule {ulx}{ub}{ubx}{}
\DeclareFontSeriesChangeRule {ulx}{ul}{ulx}{}
\DeclareFontSeriesChangeRule {ulx}{x}{ulx}{}
\DeclareFontSeriesChangeRule {ul}{c}{ulc}{}
\DeclareFontSeriesChangeRule {ul}{ec}{ulec}{}
\DeclareFontSeriesChangeRule {ul}{sc}{ulsc}{}
\DeclareFontSeriesChangeRule {ul}{x}{ulx}{}
\DeclareFontSeriesChangeRule {x}{b}{bx}{}
\DeclareFontSeriesChangeRule {x}{c}{c}{}
\DeclareFontSeriesChangeRule {x}{eb}{ebx}{}
\DeclareFontSeriesChangeRule {x}{ec}{ec}{}
\DeclareFontSeriesChangeRule {x}{el}{elx}{}
\DeclareFontSeriesChangeRule {x}{l}{lx}{}
\DeclareFontSeriesChangeRule {x}{sb}{sbx}{}
\DeclareFontSeriesChangeRule {x}{sc}{sc}{}
\DeclareFontSeriesChangeRule {x}{sl}{slx}{}
\DeclareFontSeriesChangeRule {x}{ub}{ubx}{}
\DeclareFontSeriesChangeRule {x}{ul}{ulx}{}
\DeclareFontSeriesChangeRule {bc}{m?}{c}{}
\DeclareFontSeriesChangeRule {bec}{m?}{ec}{}
\DeclareFontSeriesChangeRule {bsc}{m?}{sc}{}
\DeclareFontSeriesChangeRule {bx}{m?}{x}{}
\DeclareFontSeriesChangeRule {b}{m?}{m}{}
\DeclareFontSeriesChangeRule {c}{m?}{c}{}
\DeclareFontSeriesChangeRule {ebc}{m?}{c}{}
\DeclareFontSeriesChangeRule {ebec}{m?}{ec}{}
\DeclareFontSeriesChangeRule {ebsc}{m?}{sc}{}
\DeclareFontSeriesChangeRule {ebx}{m?}{x}{}
\DeclareFontSeriesChangeRule {eb}{m?}{m}{}
\DeclareFontSeriesChangeRule {ec}{m?}{ec}{}
\DeclareFontSeriesChangeRule {elc}{m?}{c}{}
\DeclareFontSeriesChangeRule {elec}{m?}{ec}{}
\DeclareFontSeriesChangeRule {elsc}{m?}{sc}{}
\DeclareFontSeriesChangeRule {elx}{m?}{x}{}
\DeclareFontSeriesChangeRule {el}{m?}{m}{}
\DeclareFontSeriesChangeRule {lc}{m?}{c}{}
\DeclareFontSeriesChangeRule {lec}{m?}{ec}{}
\DeclareFontSeriesChangeRule {lsc}{m?}{sc}{}
\DeclareFontSeriesChangeRule {lx}{m?}{x}{}
\DeclareFontSeriesChangeRule {l}{m?}{m}{}
\DeclareFontSeriesChangeRule {m}{m?}{m}{}
\DeclareFontSeriesChangeRule {sbc}{m?}{c}{}
\DeclareFontSeriesChangeRule {sbec}{m?}{ec}{}
\DeclareFontSeriesChangeRule {sbsc}{m?}{sc}{}
\DeclareFontSeriesChangeRule {sbx}{m?}{x}{}
\DeclareFontSeriesChangeRule {sb}{m?}{m}{}
\DeclareFontSeriesChangeRule {sc}{m?}{sc}{}
\DeclareFontSeriesChangeRule {slc}{m?}{c}{}
\DeclareFontSeriesChangeRule {slec}{m?}{ec}{}
\DeclareFontSeriesChangeRule {slsc}{m?}{sc}{}
\DeclareFontSeriesChangeRule {slx}{m?}{x}{}
\DeclareFontSeriesChangeRule {sl}{m?}{m}{}
\DeclareFontSeriesChangeRule {ubc}{m?}{c}{}
\DeclareFontSeriesChangeRule {ubec}{m?}{ec}{}
\DeclareFontSeriesChangeRule {ubsc}{m?}{sc}{}
\DeclareFontSeriesChangeRule {ubx}{m?}{x}{}
\DeclareFontSeriesChangeRule {ub}{m?}{ub}{}
\DeclareFontSeriesChangeRule {ulc}{m?}{c}{}
\DeclareFontSeriesChangeRule {ulec}{m?}{ec}{}
\DeclareFontSeriesChangeRule {ulsc}{m?}{sc}{}
\DeclareFontSeriesChangeRule {ulx}{m?}{x}{}
\DeclareFontSeriesChangeRule {ul}{m?}{m}{}
\DeclareFontSeriesChangeRule {x}{m?}{x}{}
\DeclareFontSeriesChangeRule {bc}{?m}{b}{}
\DeclareFontSeriesChangeRule {bec}{?m}{b}{}
\DeclareFontSeriesChangeRule {bsc}{?m}{b}{}
\DeclareFontSeriesChangeRule {bsc}{?m}{b}{}
\DeclareFontSeriesChangeRule {bx}{?m}{b}{}
\DeclareFontSeriesChangeRule {b}{?m}{b}{}
\DeclareFontSeriesChangeRule {c}{?m}{m}{}
\DeclareFontSeriesChangeRule {ebc}{?m}{eb}{}
\DeclareFontSeriesChangeRule {ebec}{?m}{eb}{}
\DeclareFontSeriesChangeRule {ebsc}{?m}{eb}{}
\DeclareFontSeriesChangeRule {ebsc}{?m}{eb}{}
\DeclareFontSeriesChangeRule {ebx}{?m}{eb}{}
\DeclareFontSeriesChangeRule {eb}{?m}{eb}{}
\DeclareFontSeriesChangeRule {ec}{?m}{m}{}
\DeclareFontSeriesChangeRule {elc}{?m}{el}{}
\DeclareFontSeriesChangeRule {elec}{?m}{el}{}
\DeclareFontSeriesChangeRule {elsc}{?m}{el}{}
\DeclareFontSeriesChangeRule {elsc}{?m}{el}{}
\DeclareFontSeriesChangeRule {elx}{?m}{el}{}
\DeclareFontSeriesChangeRule {el}{?m}{el}{}
\DeclareFontSeriesChangeRule {lc}{?m}{l}{}
\DeclareFontSeriesChangeRule {lec}{?m}{l}{}
\DeclareFontSeriesChangeRule {lsc}{?m}{l}{}
\DeclareFontSeriesChangeRule {lsc}{?m}{l}{}
\DeclareFontSeriesChangeRule {lx}{?m}{l}{}
\DeclareFontSeriesChangeRule {l}{?m}{l}{}
\DeclareFontSeriesChangeRule {m}{?m}{m}{}
\DeclareFontSeriesChangeRule {sbc}{?m}{sb}{}
\DeclareFontSeriesChangeRule {sbec}{?m}{sb}{}
\DeclareFontSeriesChangeRule {sbsc}{?m}{sb}{}
\DeclareFontSeriesChangeRule {sbsc}{?m}{sb}{}
\DeclareFontSeriesChangeRule {sbx}{?m}{sb}{}
\DeclareFontSeriesChangeRule {sb}{?m}{sb}{}
\DeclareFontSeriesChangeRule {sc}{?m}{m}{}
\DeclareFontSeriesChangeRule {sc}{?m}{m}{}
\DeclareFontSeriesChangeRule {slc}{?m}{sl}{}
\DeclareFontSeriesChangeRule {slec}{?m}{sl}{}
\DeclareFontSeriesChangeRule {slsc}{?m}{sl}{}
\DeclareFontSeriesChangeRule {slsc}{?m}{sl}{}
\DeclareFontSeriesChangeRule {slx}{?m}{sl}{}
\DeclareFontSeriesChangeRule {sl}{?m}{sl}{}
\DeclareFontSeriesChangeRule {ubc}{?m}{ub}{}
\DeclareFontSeriesChangeRule {ubec}{?m}{ub}{}
\DeclareFontSeriesChangeRule {ubsc}{?m}{ub}{}
\DeclareFontSeriesChangeRule {ubsc}{?m}{ub}{}
\DeclareFontSeriesChangeRule {ubx}{?m}{ub}{}
\DeclareFontSeriesChangeRule {ub}{?m}{m}{}
\DeclareFontSeriesChangeRule {ulc}{?m}{ul}{}
\DeclareFontSeriesChangeRule {ulec}{?m}{ul}{}
\DeclareFontSeriesChangeRule {ulsc}{?m}{ul}{}
\DeclareFontSeriesChangeRule {ulsc}{?m}{ul}{}
\DeclareFontSeriesChangeRule {ulx}{?m}{ul}{}
\DeclareFontSeriesChangeRule {ul}{?m}{ul}{}
\DeclareFontSeriesChangeRule {x}{?m}{m}{}
\DeclareRobustCommand\fontseries[1]{\@forced@seriesfalse
    \expandafter\def\expandafter\delayed@f@adjustment\expandafter
        {\delayed@f@adjustment\delayed@merge@font@series{#1}}}
\let\delayed@f@adjustment\@empty
\DeclareRobustCommand\fontseriesforce[1]{\@forced@seriestrue
    \expandafter\def\expandafter\delayed@f@adjustment\expandafter
      {\delayed@f@adjustment\edef\f@series{#1}}}
\newif\if@forced@series
\def\merge@font@series#1{%
  \expandafter\expandafter\expandafter
  \merge@font@series@
    \csname series@\f@series @#1\endcsname
    {#1}%
    \@nil
}
\def\merge@font@series@#1#2#3\@nil{%
  \def\reserved@a{#3}%
  \ifx\reserved@a\@empty
    \set@target@series{#2}%
  \else
    \edef\reserved@a{\f@encoding /\f@family /#1/\f@shape}%
     \ifcsname \reserved@a \endcsname
       \set@target@series{#1}%
    \else
       \ifcsname \f@encoding /\f@family /#2/\f@shape \endcsname
         \set@target@series{#2}%
         \@font@shape@subst@warning
       \else
         \set@target@series{#3}%
         \@font@shape@subst@warning
       \fi
    \fi
  \fi
}
\def\@font@shape@subst@warning{%
   \edef\reserved@b{\curr@fontshape}%
   \ifx\reserved@a\reserved@b \else
     \@font@warning{Font shape `\reserved@a' undefined\MessageBreak
                    using `\reserved@b' instead}%
   \fi
}
\def\merge@font@series@without@substitution#1{%
  \expandafter\expandafter\expandafter
  \merge@font@series@without@substitution@
    \csname series@\f@series @#1\endcsname
    {#1}%
    \@nil
}
\def\merge@font@series@without@substitution@#1#2#3\@nil{%
  \def\reserved@a{#3}%
  \ifx\reserved@a\@empty
    \set@target@series{#2}%
  \else
    \set@target@series{#1}%
  \fi
}
\let\delayed@merge@font@series\merge@font@series@without@substitution
\def\maybe@load@fontshape{%
  \begingroup
    \let \typeout \@font@info
    \try@load@fontshape
  \endgroup}
\def\set@target@series#1{%
    \edef\f@series{#1}%
    \series@maybe@drop@one@m\f@series\f@series
}
\def\series@maybe@drop@one@m#1{%
  \expandafter\series@maybe@drop@one@m@x\expandafter{#1}}

\def\series@maybe@drop@one@m@x#1#2{%
  \def\in@@##1,#1,{}%
  \series@check@toks\expandafter{\in@@
    ,ulm,elm,lm,slm,mm,sbm,bm,ebm,ubm,muc,mec,mc,msc,msx,mx,mex,mux,{}{},#1,}%
  \edef\in@@{\the\series@check@toks}%
  \ifx\in@@\@empty
    \edef#2{#1}%
  \else
    \edef#2{\expandafter\series@drop@one@m #1m\series@drop@one@m}%
  \fi
}
\newtoks\series@check@toks
\def\series@drop@one@m#1m#2m#3\series@drop@one@m{%
   #1#2%
}

\def\DeclareFontShapeChangeRule #1#2#3#4{%
  \@namedef{shape@#1@#2}{{#3}{#4}}}
\DeclareRobustCommand\ulcshape
        {\not@math@alphabet\ulcshape\relax
         \fontshape\ulcdefault\selectfont}
\let\ulcdefault\@undefined      % for rollback
\newcommand\ulcdefault{ulc}
\DeclareRobustCommand\swshape
        {\not@math@alphabet\swshape\relax
         \fontshape\swdefault\selectfont}
\let\swdefault\@undefined      % for rollback
\newcommand\swdefault{sw}
\DeclareRobustCommand\sscshape
        {\not@math@alphabet\sscshape\relax
         \fontshape\sscdefault\selectfont}
\let\sscdefault\@undefined      % for rollback
\newcommand\sscdefault{ssc}
\DeclareFontShapeChangeRule {n}{it}  {it}  {sl}
\DeclareFontShapeChangeRule {n}{sl}  {sl}  {it}
\DeclareFontShapeChangeRule {n}{ulc} {n}   {}
\DeclareFontShapeChangeRule {n}{up} {n}    {}
\DeclareFontShapeChangeRule {it}{sl}  {sl}    {it}
\DeclareFontShapeChangeRule {it}{sc}  {scit}  {scsl}
\DeclareFontShapeChangeRule {it}{ulc} {it}    {}
\DeclareFontShapeChangeRule {it}{up} {n}      {}
\DeclareFontShapeChangeRule {sl}{it}  {it}    {sl}
\DeclareFontShapeChangeRule {sl}{sc}  {scsl}  {scit}
\DeclareFontShapeChangeRule {sl}{ulc} {sl}    {}
\DeclareFontShapeChangeRule {sl}{up} {n}      {}
\DeclareFontShapeChangeRule {sc}{it}  {scit}  {scsl}
\DeclareFontShapeChangeRule {sc}{sl}  {scsl}  {scit}
\DeclareFontShapeChangeRule {sc}{sw}  {scsw}  {sw}
\DeclareFontShapeChangeRule {sc}{ulc} {n}     {}
\DeclareFontShapeChangeRule {sc}{up} {n}     {}
\DeclareFontShapeChangeRule {scit}{it}  {scit}  {}
\DeclareFontShapeChangeRule {scit}{sl}  {scsl}  {scit}
\DeclareFontShapeChangeRule {scit}{sw}  {scsw}  {sc}    % or scit?
\DeclareFontShapeChangeRule {scit}{sc}  {scit}  {}
\DeclareFontShapeChangeRule {scit}{ulc} {it}    {}
\DeclareFontShapeChangeRule {scit}{up} {sc}     {}
\DeclareFontShapeChangeRule {scsl}{it}  {scit}  {scsl}
\DeclareFontShapeChangeRule {scsl}{sl}  {scsl}  {}
\DeclareFontShapeChangeRule {scsl}{sw}  {scsw}  {sc}    % or scsl?
\DeclareFontShapeChangeRule {scsl}{sc}  {scsl}  {}
\DeclareFontShapeChangeRule {scsl}{ulc} {sl}    {}
\DeclareFontShapeChangeRule {scsl}{up}   {sc}   {}
\DeclareFontShapeChangeRule {scsw}{it}  {scit}  {scsw}
\DeclareFontShapeChangeRule {scsw}{sl}  {scsl}  {}
\DeclareFontShapeChangeRule {scsw}{sw}  {scsw}  {}
\DeclareFontShapeChangeRule {scsw}{sc}  {scsw}  {}
\DeclareFontShapeChangeRule {scsw}{ulc} {sw}    {}
\DeclareFontShapeChangeRule {scsw}{up} {sc}     {}
\DeclareFontShapeChangeRule {sw}{sc}  {scsw}  {}
\DeclareFontShapeChangeRule {sw}{ulc} {sw}    {}
\DeclareFontShapeChangeRule {sw}{up} {n}      {}
\DeclareRobustCommand\fontshape[1]
   {\expandafter\def\expandafter\delayed@f@adjustment\expandafter
        {\delayed@f@adjustment\delayed@merge@font@shape{#1}}}
\DeclareRobustCommand\fontshapeforce[1]
   {\expandafter\def\expandafter\delayed@f@adjustment\expandafter
        {\delayed@f@adjustment\edef\f@shape{#1}}}

\def\merge@font@shape#1{%
  \expandafter\expandafter\expandafter
  \merge@font@shape@
    \csname shape@\f@shape @#1\endcsname
    {#1}%
    \@nil
}

\def\merge@font@shape@#1#2#3\@nil{%
  \def\reserved@a{#3}%
  \ifx\reserved@a\@empty
    \edef\f@shape{#2}%
  \else
    \edef\reserved@a{\f@encoding /\f@family /\f@series/#1}%
    \ifcsname \reserved@a\endcsname
       \edef\f@shape{#1}%
    \else
       \ifcsname \f@encoding /\f@family /\f@series/#2\endcsname
         \edef\f@shape{#2}%
         \@font@shape@subst@warning
       \else
         \edef\f@shape{#3}%
         \@font@shape@subst@warning
       \fi
    \fi
  \fi
}
\def\merge@font@shape@without@substitution#1{%
  \expandafter\expandafter\expandafter
  \merge@font@shape@without@substitution@
    \csname shape@\f@shape @#1\endcsname
    {#1}%
    \@nil
}
\def\merge@font@shape@without@substitution@#1#2#3\@nil{%
  \def\reserved@a{#3}%
  \ifx\reserved@a\@empty
    \edef\f@shape{#2}%
  \else
    \edef\f@shape{#1}%
  \fi
}
\let\delayed@merge@font@shape\merge@font@shape@without@substitution
\protected\def\normalshape
    {\not@math@alphabet\normalshape\relax
      \fontshape\shapedefault\selectfont}%
\def\reinstall@nfss@defs{%
  \protected\def\upshape
          {\not@math@alphabet\upshape\relax
           \fontshape\updefault\selectfont}%
  \protected\def\slshape
          {\not@math@alphabet\slshape\relax
           \fontshape\sldefault\selectfont}%
  \protected\def\scshape
          {\not@math@alphabet\scshape\relax
           \fontshape\scdefault\selectfont}%
  \protected\def\itshape
          {\not@math@alphabet\itshape\mathit
           \fontshape\itdefault\selectfont}%
  \protected\def\ulcshape
          {\not@math@alphabet\ulcshape\relax
           \fontshape{ulc}\selectfont}%
  \protected\def\swshape
          {\not@math@alphabet\swshape\relax
           \fontshape\swdefault\selectfont}%
  \protected\def\sscshape
          {\not@math@alphabet\sscshape\relax
           \fontshape\sscdefault\selectfont}%
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\g@addto@macro\@kernel@after@begindocument@before
              {\reinstall@nfss@defs\init@series@setup}
%%% From File: ltfsstrc.dtx
%% Copyright (C) 1989-97 by Frank Mittelbach and Rainer Sch\"opf.
%% Copyright (C) 1994-97 by LaTeX Project. All rights reserved.
\message{NFSS tracing,}
\def\tracingfonts{%
  \@font@warning{Command \noexpand\tracingfonts
           not provided.\MessageBreak
           Use the `tracefnt' package.\MessageBreak Command found:}%
       \count@}
\def\@font@info#1{%
         \GenericInfo{(Font)\@spaces\@spaces\@spaces\space\space}%
                     {LaTeX Font Info: \space\space\space#1}}%
\def\@font@warning#1{%
         \GenericWarning{(Font)\@spaces\@spaces\@spaces\space\space}%
                        {LaTeX Font Warning: #1}}%
\def\extract@font{%
   \get@external@font
   \global\expandafter\font\font@name\external@font\relax
    \font@name \relax
    \csname \f@encoding+\f@family\endcsname
    \csname\curr@fontshape\endcsname
    \relax
       }
\def\get@external@font{%
   \let\external@font\@empty
   \edef\font@info{\expandafter\expandafter\expandafter\string
        \csname \curr@fontshape \endcsname}%
   \try@size@range
   \ifx\external@font\@empty
      \try@size@substitution
      \ifx\external@font\@empty
         \@latex@error{Font \expandafter \string\font@name\space
                     not found}\@eha
         \error@fontshape
         \get@external@font
   \fi\fi
}

\DeclareRobustCommand\selectfont
        {%
    \ifx\f@linespread\baselinestretch \else
      \set@fontsize\baselinestretch\f@size\f@baselineskip \fi
    \ifx\delayed@f@adjustment\@empty
    \else
      \let\f@shape@saved\f@shape
      \let\f@series@saved\f@series
      \delayed@f@adjustment
      \maybe@load@fontshape
      \ifcsname \f@encoding/\f@family/\f@series/\f@shape \endcsname
      \else
        \let\f@shape\f@shape@saved
        \let\f@series\f@series@saved
        \let\delayed@merge@font@shape\merge@font@shape
        \let\delayed@merge@font@series\merge@font@series
        \delayed@f@adjustment
        \let\delayed@merge@font@shape\merge@font@shape@without@substitution
        \let\delayed@merge@font@series\merge@font@series@without@substitution
      \fi
      \let\delayed@f@adjustment\@empty
    \fi
    \@forced@seriesfalse
    \xdef\font@name{%
      \csname\curr@fontshape/\f@size\endcsname}%
    \pickup@font
    \font@name
    \UseHook{selectfont}%
    \size@update
    \enc@update
    }
\NewHook{selectfont}
\def\set@fontsize#1#2#3{%
    \@defaultunits\@tempdimb#2pt\relax\@nnil
    \edef\f@size{\strip@pt\@tempdimb}%
    \@defaultunits\@tempskipa#3pt\relax\@nnil
    \edef\f@baselineskip{\the\@tempskipa}%
    \edef\f@linespread{#1}%
    \let\baselinestretch\f@linespread
      \def\size@update{%
        \baselineskip\f@baselineskip\relax
        \baselineskip\f@linespread\baselineskip
        \normalbaselineskip\baselineskip
        \setbox\strutbox\hbox{%
          \vrule\@height.7\baselineskip
                \@depth.3\baselineskip
                \@width\z@}%
        \let\size@update\relax}%
  }
\let\size@update\relax
\def\glb@settings{%
     \expandafter\ifx\csname S@\f@size\endcsname\relax
       \calculate@math@sizes
     \fi
     \csname S@\f@size\endcsname
     \ifmath@fonts
       \begingroup
         \escapechar\m@ne
         \csname mv@\math@version \endcsname
         \globaldefs\@ne
         \math@fonts
         \let \glb@currsize \f@size
       \endgroup
        \the\every@math@size
     \fi
}
\def\baselinestretch{1}
\newtoks\every@math@size
\every@math@size={}
\def\check@mathfonts{%
  \ifx \glb@currsize \f@size
  \else
     \glb@settings
     \init@restore@glb@settings
  \fi
  \let\curr@math@size\f@size
  \def\init@restore@glb@settings{\aftergroup\restglb@settings}%
}
\let\init@restore@glb@settings\relax
\def\restglb@settings{%
      \begingroup
        \let\f@size\curr@math@size
        \ifx\glb@currsize \f@size
        \else
          \glb@settings
        \fi
      \endgroup
}
\def\use@mathgroup#1#2{\relax\ifmmode
     \math@bgroup
         \expandafter\ifx\csname M@\f@encoding\endcsname#1\else
         #1\fi
         \mathgroup#2\relax
     \expandafter\math@egroup\fi}%
\def\getanddefine@fonts#1#2{%
  \xdef\font@name{\csname \string#2/\tf@size\endcsname}%
  \pickup@font \let\textfont@name\font@name
  \xdef\font@name{\csname \string#2/\sf@size\endcsname}%
  \pickup@font \let\scriptfont@name\font@name
  \xdef\font@name{\csname \string#2/\ssf@size\endcsname}%
  \pickup@font
  \edef\math@fonts{\math@fonts
               \textfont#1\textfont@name
               \scriptfont#1\scriptfont@name
               \scriptscriptfont#1\font@name}%
    }
\def\ifnot@nil#1{\def\reserved@a{#1}%
  \ifx\reserved@a\@nnil \expandafter\@gobble
  \else \expandafter\@firstofone\fi}
\def\remove@to@nnil#1\@nnil{}
\def\remove@angles#1>{\set@simple@size@args}
\def\remove@star#1*{#1}
\def\extract@sizefn#1*#2\@nil{%
  \if>#2>\set@size@funct@args#1\@nil
         \let\sizefn@info\@empty
  \else\expandafter\set@size@funct@args\remove@star#2\@nil
       \def\sizefn@info{#1}\fi
  }
\def\try@simple@size{%
    \def\reserved@a{\def\extract@fontinfo####1}%
    \expandafter\reserved@a\expandafter<\f@size>##2<##3\@nnil{%
          \ifnot@nil{##2}%
            {\set@simple@size@args##2<##3\@nnil
             \execute@size@function\sizefn@info
            }}%
    \expandafter\expandafter
    \expandafter\extract@fontinfo\expandafter\font@info
    \expandafter<\f@size>\@nil<\@nnil
}
\def\set@simple@size@args#1<{%
          \if<#1<%
            \expandafter\remove@angles
          \else
            \extract@sizefn#1*\@nil
            \expandafter\remove@to@nnil
          \fi}
\def\extract@rangefontinfo#1<#2>{%
       \is@range#2->\@nil#2>}
\def\is@range#1-#2\@nil{%
   \if>#2\expandafter\check@single\else
      \expandafter\check@range\fi}
\def\check@range#1-#2>#3<#4\@nnil{%
  \ifnot@nil{#3}{%
     \def\reserved@f{\extract@rangefontinfo<#4\@nnil}%
     \upper@bound0#2\p@
     \ifdim\upper@bound=\z@ \upper@bound\maxdimen\fi
     \ifdim \f@size \p@<\upper@bound
       \lower@bound0#1\p@
       \ifdim \f@size \p@<\lower@bound
        \else
          \set@simple@size@args#3<#4\@nnil
          \execute@size@function\sizefn@info
         \ifx\external@font\@empty
         \else
           \let\reserved@f\@empty
         \fi
       \fi
     \fi
     \reserved@f}}
\newdimen\lower@bound
\newdimen\upper@bound
\def\check@single#1>#2<#3\@nnil{%
     \def\reserved@f{\extract@rangefontinfo<#3\@nnil}%
     \ifdim \f@size \p@=#1\p@
        \set@simple@size@args#2<#3\@nnil
        \execute@size@function\sizefn@info
        \ifx\external@font\@empty
        \else
          \let\reserved@f\@empty
        \fi
     \fi
     \reserved@f}
\def\set@size@funct@args{\@ifnextchar[%
  \set@size@funct@args@{\set@size@funct@args@[]}}
\def\set@size@funct@args@[#1]#2\@nil{%
  \def\mandatory@arg{#2}%
  \def\optional@arg{#1}}
\def\DeclareSizeFunction#1#2{\@namedef{s@fct@#1}{#2}}
\@onlypreamble\DeclareSizeFunction
\def\execute@size@function#1{%
      \csname s@fct@#1\endcsname
}
\def\try@size@range{%
    \expandafter\extract@rangefontinfo\font@info <-*>\@nil<\@nnil
}
\gdef\try@size@substitution{%
  \@tempdimb \maxdimen
  \let \best@size \@empty
  \expandafter \try@simples \font@info <\number\@M>\@nil<\@nnil
}
\def\font@submax{0pt}
\def\fontsubfuzz{.4pt}
\gdef\try@simples#1<#2>{%
  \tryif@simple#2->\tryif@simple}
\gdef\tryif@simple#1-#2\tryif@simple{%
  \let \reserved@f \try@simples
  \if>#2%
    \dimen@ #1\p@
    \ifdim \dimen@<\@M\p@
      \ifdim \f@size\p@<\dimen@
        \@tempdimc \dimen@
        \advance\@tempdimc -\f@size\p@
      \else
        \@tempdimc \f@size\p@
        \advance\@tempdimc -\dimen@
      \fi
      \ifdim \@tempdimc<\@tempdimb
        \@tempdimb \@tempdimc
        \def \best@size{#1}%
      \fi
    \else
  \ifx \external@font\@empty
    \ifx \best@size\@empty
    \else
      \ifdim \@tempdimb>\font@submax \relax
        \xdef \font@submax {\the\@tempdimb}%
      \fi
      \let \f@user@size \f@size
      \let \f@size \best@size
      \ifdim \@tempdimb>\fontsubfuzz\relax
        \@font@warning{Font\space shape\space
            `\curr@fontshape'\space in\space size\space
             <\f@user@size>\space not\space available\MessageBreak
             size\space <\f@size>\space substituted}%
      \fi
      \try@simple@size
      \do@subst@correction
    \fi
 \fi
      \let \reserved@f \remove@to@nnil
    \fi
  \fi
  \reserved@f}
\DeclareSizeFunction{}{\empty@sfcnt\@font@warning}
\DeclareSizeFunction{s}{\empty@sfcnt\@font@info}
\def\empty@sfcnt#1{%
      \@tempdimb \f@size\p@
      \ifx\optional@arg\@empty
      \else
        \@tempdimb \optional@arg\@tempdimb
        #1{Font\space shape\space `\curr@fontshape'\space
           will\space be\MessageBreak
           scaled\space to\space size\space \the\@tempdimb}%
      \fi
      \edef\external@font{\mandatory@arg\space at\the\@tempdimb}}
\DeclareSizeFunction{gen}{\gen@sfcnt\@font@warning}
\DeclareSizeFunction{sgen}{\gen@sfcnt\@font@info}
\def\gen@sfcnt{%
      \edef\mandatory@arg{\mandatory@arg\f@size}%
      \empty@sfcnt}
\DeclareSizeFunction{genb}{\genb@sfcnt\@font@warning}
\DeclareSizeFunction{sgenb}{\genb@sfcnt\@font@info}
\def\genb@sfcnt{%
    \edef\mandatory@arg{\mandatory@arg\expandafter\genb@x\f@size..\@@}%
    \empty@sfcnt}
\def\genb@x#1.#2.#3\@@{\two@digits{#1}\genb@y#200\@@}
\def\genb@y#1#2#3\@@{#1#2}
\DeclareSizeFunction{sub}{\sub@sfcnt\@font@warning}
\DeclareSizeFunction{ssub}{\sub@sfcnt\@font@info}
\def\sub@sfcnt#1{%
    \edef\mandatory@arg{\f@encoding/\mandatory@arg}%
    \begingroup
     \expandafter\split@name\mandatory@arg/\@nil
     \try@load@fontshape
    \endgroup
    \let\f@user@size\f@size
    \expandafter
    \ifx\csname\mandatory@arg\endcsname\relax
      \errmessage{No\space declaration\space for\space
                  shape\space \mandatory@arg}%
      \error@fontshape
    \else
      #1{Font\space shape\space `\curr@fontshape'\space in\space
         size\space <\f@size>\space not\space available\MessageBreak
         Font\space shape\space `\mandatory@arg'\space tried\space
         instead}%
      \expandafter\split@name\mandatory@arg/\@nil
    \fi
    \edef\f@size{\f@user@size}%
    \get@external@font
    \do@subst@correction
}
\DeclareSizeFunction{alias}{\sub@sfcnt\@font@aliasinfo}
\def\@font@aliasinfo#1{%
  \@font@info{Font\space shape\space `\curr@fontshape'\space
              aliased\space to\MessageBreak `\mandatory@arg'}%
}
\DeclareSizeFunction{subf}{\subf@sfcnt\@font@warning}
\DeclareSizeFunction{ssubf}{\subf@sfcnt\@font@info}
\def\subf@sfcnt#1{%
      #1{Font\space shape\space `\curr@fontshape'\space in\space
         size\space \f@size\space not\space available\MessageBreak
        external\space font\space `\mandatory@arg'\space used}%
      \empty@sfcnt#1%
      }
\DeclareSizeFunction{fixed}{\fixed@sfcnt\@font@warning}
\DeclareSizeFunction{sfixed}{\fixed@sfcnt\@font@info}
\def\fixed@sfcnt#1{%
  \ifx\optional@arg\@empty
    \let\external@font\mandatory@arg
  \else
    \edef\external@font{\mandatory@arg\space at\optional@arg pt}%
  \fi
  #1{External\space font\space `\external@font'\space loaded\space
     for\space size\MessageBreak
     <\f@size>}%
}
%%% From File: ltfssdcl.dtx
%% Copyright (C) 1989-1998 Frank Mittelbach and Rainer Sch\"opf,
%% all rights reserved.
\message{NFSS declarative interface,}
\def\in@#1#2%
 {%
   \begingroup
     \def\in@@##1#1{}%
     \toks@\expandafter{\in@@#2{}{}#1}%
     \edef\in@@{\the\toks@}%
   \expandafter\endgroup
   \ifx\in@@\@empty
     \in@false
   \else
     \in@true
   \fi
 }
\newif\ifin@
\let\version@list=\@empty
\@onlypreamble\version@list
\let\version@elt\relax
\@onlypreamble\version@elt
\let\alpha@list\@empty
\@onlypreamble\alpha@list
\let\alpha@elt\relax
\@onlypreamble\alpha@elt
\count18=-1
\def\select@group#1#2#3#4{%
 \ifx\math@bgroup\bgroup\else\relax\expandafter\@firstofone\fi
 {%
 \ifmmode
  \ifnum\csname c@mv@\math@version\endcsname<\e@mathgroup@top
     \begingroup
       \escapechar\m@ne
       \getanddefine@fonts{\csname c@mv@\math@version\endcsname}#3%
       \globaldefs\@ne  \math@fonts
     \endgroup
     \init@restore@version
     \xdef#1{\noexpand\use@mathgroup\noexpand#2%
             {\number\csname c@mv@\math@version\endcsname}}%
     \global\advance\csname c@mv@\math@version\endcsname\@ne
   \else
     \let#1\relax
     \@latex@error{Too many math alphabets used in
                   version \math@version}%
        \@eha
   \fi
 \else \expandafter\non@alpherr\fi
 #1{#4}%
 }%
}
\@onlypreamble\restore@mathversion
\def\init@restore@version{%
        \global\let\init@restore@version\relax
        \xdef\restore@mathversion
             {\expandafter\noexpand\csname mv@\math@version\endcsname
              \global\csname c@mv@\math@version\endcsname
              \number\csname c@mv@\math@version\endcsname\relax}%
        \aftergroup\dorestore@version
}
\@onlypreamble\init@restore@version
\gdef\non@alpherr#1{\@latex@error{%
    \string#1allowed only in math mode}\@ehd}
\def\dorestore@version
 {\ifmmode
    \aftergroup\dorestore@version
  \else
    \gdef\init@restore@version{%
        \global\let\init@restore@version\relax
        \xdef\restore@mathversion
             {\expandafter\noexpand\csname mv@\math@version\endcsname
              \global\csname c@mv@\math@version\endcsname
              \number\csname c@mv@\math@version\endcsname\relax}%
        \aftergroup\dorestore@version
    }%
    \begingroup
      \let\getanddefine@fonts\@gobbletwo
      \restore@mathversion
    \endgroup
  \fi}%
\@onlypreamble\dorestore@version
\ifx\c@localmathalphabets\@undefined
  \newcount\c@localmathalphabets
  \setcounter{localmathalphabets}{2}
\fi
\def\document@select@group#1#2#3#4{%
 \ifx\math@bgroup\bgroup\else\relax\expandafter\@firstofone\fi
 {%
 \ifmmode
   \ifnum\csname c@mv@\math@version\endcsname<\e@mathgroup@top
     \ifnum \numexpr\e@mathgroup@top-\c@localmathalphabets
              >\csname c@mv@\math@version\endcsname
     \else
       \ifcsname mv@\math@version @frozen\endcsname \else
         \expandafter\freeze@math@version\expandafter{\math@version}%
       \fi
     \fi
     \begingroup
       \escapechar\m@ne
       \getanddefine@fonts{\csname c@mv@\math@version\endcsname}#3%
       \globaldefs\@ne  \math@fonts
     \endgroup
     \expandafter\extract@alph@from@version
         \csname mv@\math@version\expandafter\endcsname
         \expandafter{\number\csname
                       c@mv@\math@version\endcsname}%
          #1%
     \global\advance\csname c@mv@\math@version\endcsname\@ne
   \else
     \let#1\relax
     \@latex@error{Too many math alphabets used in
                   version \math@version}%
        \@eha
  \fi
 \else \expandafter\expandafter\expandafter\non@alpherr\fi
 \expandafter#1\ifx\math@bgroup\bgroup{#4}\else#4\fi
 }%
}
\ExplSyntaxOn
\cs_new_protected:Npn\freeze@math@version #1 {
  \@font@info{Freeze~ math~ alphabet~ allocation~ in~ version~
              #1.\MessageBreak
              Allocated~math~groups:~\int_use:c{ c@mv@ #1 }~
              (local:~  \int_use:N\c@localmathalphabets)      }
  \cs_gset_eq:cc { mv@#1@frozen }{ mv@#1 }
  \tl_gset:cx { g__nfss_frozen_mv_ #1 _tl }{ \int_use:c { c@mv@#1 } }
  \cs_gset:cpn{mv@#1@reset}
     {
         \int_compare:nNnTF { \int_use:c{c@mv@#1} } >
                            { \tl_use:c{g__nfss_frozen_mv_ #1 _tl} }
             {
               \@font@info{Undo~ math~ alphabet~ allocation~ in~ version~ #1}
               \cs_gset_eq:cc { mv@#1 }{ mv@#1@frozen }
               \int_gset:cn { c@mv@#1 }{ \tl_use:c {g__nfss_frozen_mv_ #1 _tl} }
               \group_begin:
                 \cs_set_eq:NN \getanddefine@fonts \use_none:nn
                 \use:c {mv@#1}
               \group_end:
             }
             {
               \@font@info{No~ math~ alphabet~ change~ to~ frozen~ version~ #1}
             }
         \if@ignore \ignorespaces \fi
    }
}
\ExplSyntaxOff
\def\process@table{%
    \def\cdp@elt##1##2##3##4{%
        \@font@info{Checking defaults for
                  ##1/##2/##3/##4}%
        \expandafter
        \ifx\csname##1/##2/##3/##4\endcsname\relax
          \begingroup
           \def\f@encoding{##1}\def\f@family{##2}%
           \try@load@fontshape
          \endgroup
        \fi
        \expandafter
        \ifx\csname##1/##2/##3/##4\endcsname\relax
             \@latex@error{This NFSS system isn't set up properly}%
                       {For encoding scheme ##1 the defaults
                        ##2/##3/##4 do not form a valid font shape}%
        \else
             \@font@info{... okay}%
        \fi}%
    \cdp@list
    \begingroup
       \escapechar\m@ne
       \error@fontshape
       \expandafter\ifx\csname \curr@fontshape\endcsname\relax
          \begingroup
            \try@load@fontshape
           \endgroup
       \fi
       \expandafter\ifx\csname \curr@fontshape\endcsname\relax
         \@latex@error{This NFSS system isn't set up properly}%
            {The system maintainer forgot to specify a suitable
             substitution
             font shape using the \noexpand\DeclareErrorFont
             command}%
       \fi
    \endgroup
    \let\select@group\document@select@group
    \fontencoding\encodingdefault
    \edef\f@family{\familydefault}%
    \edef\f@series{\seriesdefault}%
    \edef\f@shape{\shapedefault}%
 \everyjob{}%
}
\@onlypreamble\process@table
\def\DeclareMathVersion#1{%
  \@namedef{g__nfss_frozen_mv_#1_tl}{}%
  \expandafter\ifx\csname mv@#1\endcsname \relax
    \expandafter \g@addto@macro \expandafter \check@mathfonts
         \expandafter {\expandafter \aftergroup \csname mv@#1@reset\endcsname}%
    \@namedef{mv@#1@reset}{}%
  \fi
  \expandafter\new@mathversion\csname mv@#1\endcsname}
\@onlypreamble\DeclareMathVersion
\def\new@mathversion#1{%
  \expandafter\in@\expandafter#1\expandafter{\version@list}%
  \ifin@
    \@font@info{Redeclaring math version
               `\expandafter\@gobblefour\string#1'}%
  \else
    \expandafter\newcount\csname c@\expandafter
                                \@gobble\string#1\endcsname
    \def\version@elt{\noexpand\version@elt\noexpand}%
    \edef\version@list{\version@list\version@elt#1}%
  \fi
  \toks@{}%
  \count@\z@
  \def\group@elt##1##2{%
       \advance\count@\@ne
       \addto@hook\toks@{\getanddefine@fonts##1##2}%
       }%
  \group@list
  \global\csname c@\expandafter\@gobble\string#1\endcsname\count@
  \def\alpha@elt##1##2##3{%
       \ifx##2\no@alphabet@error
         \toks@\expandafter{\the\toks@\install@mathalphabet##1%
             {\no@alphabet@error##1}}%
       \else
         \toks@\expandafter{\the\toks@\install@mathalphabet##1%
             {\select@group##1##2##3}}%
       \fi
          }%
  \alpha@list
  \xdef#1{\the\toks@}%
}
\@onlypreamble\new@mathversion
\def\DeclareSymbolFont #1#2#3#4#5{%
 \def\reserved@a{\DeclareSymbolFont@m@dropped{#1}{#2}{#3}}%
 \edef\reserved@b{#4}%
 \series@maybe@drop@one@m\reserved@b\reserved@b
 \expandafter\reserved@a\expandafter{\reserved@b}{#5}%
}
\def\DeclareSymbolFont@m@dropped #1#2#3#4#5{%
 \@tempswafalse
 \edef\reserved@b{#2}%
 \def\cdp@elt##1##2##3##4{\def\reserved@c{##1}%
      \ifx\reserved@b\reserved@c \@tempswatrue\fi}%
 \cdp@list
 \if@tempswa
   \@ifundefined{sym#1}{%
      \ifnum\count18<15 %
        \expandafter\new@mathgroup\csname sym#1\endcsname
        \expandafter\new@symbolfont\csname sym#1\endcsname
                        {#2}{#3}{#4}{#5}%
      \else
         \@latex@error{Too many symbol fonts declared}\@eha
      \fi
     }%
     {%
      \@font@info{Redeclaring symbol font `#1'}%
      \def\group@elt##1##2{%
           \noexpand\group@elt\noexpand##1%
           \expandafter\ifx\csname sym#1\endcsname##1%
             \expandafter\noexpand\csname#2/#3/#4/#5\endcsname
           \else
               \noexpand##2%
           \fi}%
      \xdef\group@list{\group@list}%
      \def\version@elt##1{%
          \expandafter
          \SetSymbolFont@\expandafter##1\csname#2/#3/#4/#5\expandafter
              \endcsname \csname sym#1\endcsname
          }%
      \version@list
     }%
  \else
    \@latex@error{Encoding scheme  `#2' unknown}\@eha
  \fi
  }
\@onlypreamble\DeclareSymbolFont
\let\group@list\@empty
\@onlypreamble\group@list
\let\group@elt\relax
\@onlypreamble\group@elt
\def\new@symbolfont#1#2#3#4#5{%
    \toks@\expandafter{\group@list}%
    \edef\group@list{\the\toks@\noexpand\group@elt\noexpand#1%
                     \expandafter\noexpand\csname#2/#3/#4/#5\endcsname}%
    \def\version@elt##1{\toks@\expandafter{##1}%
                   \edef##1{\the\toks@\noexpand\getanddefine@fonts
                   #1\expandafter\noexpand\csname#2/#3/#4/#5\endcsname}%
                  \global\advance\csname c@\expandafter
                                 \@gobble\string##1\endcsname\@ne
                 }%
    \version@list
}
\@onlypreamble\new@symbolfont
\def\SetSymbolFont #1#2#3#4#5#6{%
 \def\reserved@a{\SetSymbolFont@m@dropped{#1}{#2}{#3}{#4}}%
 \edef\reserved@b{#5}%
 \series@maybe@drop@one@m\reserved@b\reserved@b
 \expandafter\reserved@a\expandafter{\reserved@b}{#6}%
}
\def\SetSymbolFont@m@dropped#1#2#3#4#5#6{%
 \@tempswafalse
 \edef\reserved@b{#3}%
 \def\cdp@elt##1##2##3##4{\def\reserved@c{##1}%
      \ifx\reserved@b\reserved@c \@tempswatrue\fi}%
 \cdp@list
 \if@tempswa
  \expandafter\SetSymbolFont@
    \csname mv@#2\expandafter\endcsname\csname#3/#4/#5/#6\expandafter
    \endcsname \csname sym#1\endcsname
 \else
  \@latex@error{Encoding scheme  `#3' unknown}\@eha
 \fi
}
\@onlypreamble\SetSymbolFont
\def\SetSymbolFont@#1#2#3{%
  \expandafter\in@\expandafter#1\expandafter{\version@list}%
  \ifin@
    \expandafter\in@\expandafter#3\expandafter{\group@list}%
    \ifin@
      \begingroup
        \expandafter\get@cdp\string#2\@nil\reserved@a
        \toks@{}%
        \def\install@mathalphabet##1##2{%
             \addto@hook\toks@{\install@mathalphabet##1{##2}}%
            }%
        \def\getanddefine@fonts##1##2{%
          \ifnum##1=#3%
             \addto@hook\toks@{\getanddefine@fonts#3#2}%
             \expandafter\get@cdp\string##2\@nil\reserved@b
             \ifx\reserved@a\reserved@b\else
                \@font@info{Encoding `\reserved@b' has changed
                    to `\reserved@a' for symbol font\MessageBreak
                   `\expandafter\@gobblefour\string#3' in the
                    math version `\expandafter
                    \@gobblefour\string#1'}%
             \fi
             \@font@info{%
                Overwriting symbol font
                `\expandafter\@gobblefour\string#3' in
                 version `\expandafter
                \@gobblefour\string#1'\MessageBreak
                \@spaces \expandafter\@gobble\string##2 -->
                         \expandafter\@gobble\string#2}%
          \else
             \addto@hook\toks@{\getanddefine@fonts##1##2}%
          \fi}%
         #1%
         \xdef#1{\the\toks@}%
      \endgroup
    \else
       \@latex@error{Symbol font `\expandafter\@gobblefour\string#3'
                  not defined}\@eha
    \fi
  \else
    \@latex@error{Math version `\expandafter\@gobblefour\string#1'
       is not
       defined}{You probably misspelled the name of the math
       version.^^JOr you have to specify an additional package.}%
  \fi
}
\@onlypreamble\SetSymbolFont@
\def\get@cdp#1#2/#3\@nil#4{\def#4{#2}}
\@onlypreamble\get@cdp
\def\DeclareMathAlphabet#1#2#3#4#5{%
 \@tempswafalse
 \edef\reserved@b{#2}%
 \def\cdp@elt##1##2##3##4{\def\reserved@c{##1}%
      \ifx\reserved@b\reserved@c \@tempswatrue\fi}%
 \cdp@list
 \if@tempswa
   \expandafter\ifx
   \csname\expandafter\@gobble\string#1\endcsname
   \relax
      \new@mathalphabet#1{#2}{#3}{#4}{#5}%
   \else
     \edef\reserved@a{\noexpand\in@{\string\select@group}%
         {\expandafter\meaning\csname \expandafter
          \@gobble\string#1\space\endcsname}}%
     \reserved@a
     \ifin@
       \@font@info{Redeclaring math alphabet \string#1}%
       \def\version@elt##1{%
         \expandafter\SetMathAlphabet@\expandafter
            ##1\csname#2/#3/#4/#5\expandafter\endcsname
            \csname M@#2\expandafter\endcsname
            \csname \expandafter\@gobble\string#1\space\endcsname#1}%
       \version@list
     \else
       \edef\reserved@a{\noexpand\in@{\string\use@mathgroup}%
         {\expandafter\meaning\csname \expandafter
          \@gobble\string#1\space\endcsname}}%
       \reserved@a
       \ifin@
         \@font@info{Redeclaring math alphabet \string#1}%
         \new@mathalphabet#1{#2}{#3}{#4}{#5}%
       \else
         \@latex@error{Command `\string#1' already defined}\@eha
       \fi
     \fi
  \fi
 \else
  \@latex@error{Encoding scheme  `#2' unknown}\@eha
 \fi
  }
\@onlypreamble\DeclareMathAlphabet
\def\new@mathalphabet#1#2#3#4#5{%
    \toks@\expandafter{\alpha@list}%
    \edef#1{\expandafter\noexpand\csname \expandafter
            \@gobble\string#1\space\endcsname
            \if/#5/%
               \noexpand\no@alphabet@error
               \noexpand\no@alphabet@error
            \else
               \expandafter\noexpand\csname M@#2\endcsname
               \expandafter\noexpand\csname#2/#3/#4/#5\endcsname
            \fi
           }%
    \toks2\expandafter{#1}%
    \edef\alpha@list{\the\toks@\noexpand\alpha@elt\the\toks2}%
    \def\version@elt##1{\toks@\expandafter{##1}%
                   \edef##1{\the\toks@\install@mathalphabet
                            \expandafter\noexpand
                            \csname \expandafter\@gobble
                               \string#1\space\endcsname
                           {\if/#5/%
                             \noexpand\no@alphabet@error
                             \noexpand#1%
                            \else
                             \noexpand\select@group\the\toks2
                            \fi}}%
                 }%
    \version@list
    \expandafter\edef\csname \expandafter\@gobble
                \string#1\space\endcsname{\if/#5/%
              \noexpand\no@alphabet@error
              \noexpand#1%
            \else
              \noexpand\select@group\the\toks2
            \fi}%
    \edef#1{\noexpand\protect
            \expandafter\noexpand\csname \expandafter
            \@gobble\string#1\space\endcsname}%
}
\@onlypreamble\new@mathalphabet
\def\SetMathAlphabet#1#2#3#4#5#6{%
 \@tempswafalse
 \edef\reserved@b{#3}%
 \def\cdp@elt##1##2##3##4{\def\reserved@c{##1}%
      \ifx\reserved@b\reserved@c \@tempswatrue\fi}%
 \cdp@list
 \if@tempswa
  \expandafter\SetMathAlphabet@
    \csname mv@#2\expandafter\endcsname\csname#3/#4/#5/#6\expandafter
    \endcsname \csname M@#3\expandafter\endcsname
    \csname \expandafter\@gobble\string#1\space\endcsname#1%
 \else
  \@latex@error{Encoding scheme  `#3' unknown}\@eha
 \fi
}
\@onlypreamble\SetMathAlphabet
\def\SetMathAlphabet@#1#2#3#4#5{%
  \expandafter\in@\expandafter#1\expandafter{\version@list}%
  \ifin@
    \expandafter\in@\expandafter#4\expandafter{\alpha@list}%
    \ifin@
      \begingroup
        \toks@{}%
        \def\getanddefine@fonts##1##2{%
             \addto@hook\toks@{\getanddefine@fonts##1##2}%
            }%
        \def\reserved@c##1##2##3##4{%                % for message below
            \expandafter\@gobble\string##4}%
        \def\install@mathalphabet##1##2{%
          \ifx##1#4%
             \addto@hook\toks@
                {\install@mathalphabet#4{\select@group#4#3#2}}%
             \@font@info{Overwriting math alphabet
                `\string#5' in version `\expandafter
                 \@gobblefour\string#1'\MessageBreak
                 \@spaces \reserved@c##2 -->
                        \expandafter\@gobble\string#2}%
          \else
             \addto@hook\toks@{\install@mathalphabet##1{##2}}%
          \fi
          }%
        #1%
        \xdef#1{\the\toks@}%
      \endgroup
    \else
       \edef\reserved@a{%
         \noexpand\in@{\string\use@mathgroup}{\meaning#4}}%
       \reserved@a
       \ifin@
         \def\reserved@b##1\use@mathgroup##2##3{%
             \def\reserved@b{##3}\def\reserved@c{##2}}%
         \expandafter\reserved@b#4%
         \begingroup
           \def\install@mathalphabet##1##2{%
               \addto@hook\toks@{\install@mathalphabet##1{##2}}%
               }%
            \def\getanddefine@fonts##1##2{%
              \addto@hook\toks@{\getanddefine@fonts##1##2}%
              \ifnum##1=\reserved@b
                 \expandafter
                 \addto@hook\expandafter\toks@
                 \expandafter{\expandafter\install@mathalphabet
                 \expandafter#4\expandafter
                       {\expandafter\select@group\expandafter
                         #4\reserved@c##2}}%
              \fi
                      }%
           \def\version@elt##1{%
               \toks@{}%
               ##1%
               \xdef##1{\the\toks@}%
              }%
           \version@list
         \endgroup
         \expandafter\gdef\expandafter\alpha@list\expandafter
             {\alpha@list
              \alpha@elt #4\no@alphabet@error \no@alphabet@error}%
         \gdef#4{\no@alphabet@error #5}% fake things :-)
         \SetMathAlphabet@{#1}{#2}{#3}#4#5%
       \else
         \@latex@error{Command `\string#5' not defined as a
                       math alphabet}%
            {Use \noexpand\DeclareMathAlphabet to define it.}%
       \fi
    \fi
  \else
    \@latex@error{Math version `\expandafter\@gobblefour\string#1'
       is not
       defined}{You probably misspelled the name of the math
       version.^^JOr you have to specify an additional package.}%
  \fi
}
\@onlypreamble\SetMathAlphabet@
\def\DeclareMathAccent#1#2#3#4{%
  \expandafter\in@\csname sym#3\expandafter\endcsname
     \expandafter{\group@list}%
  \ifin@
    \begingroup
      \count\z@=#4\relax
      \count\tw@\count\z@
      \divide\count\z@\sixt@@n
      \count@\count\z@
      \multiply\count@\sixt@@n
      \advance\count\tw@-\count@
      \if\relax\noexpand#1% is command?
        \edef\reserved@a{\noexpand\in@
          {\expandafter\@gobble\string\mathaccent}
          {\expandafter\meaning
           \csname\expandafter\@gobble\string#1\space\endcsname}}%
        \reserved@a
        \ifin@
          \expandafter\let
            \csname\expandafter\@gobble\string#1\space\endcsname
            \@undefined
          \expandafter\set@mathaccent
             \csname sym#3\endcsname#1#2%
             {\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
          \@font@info{Redeclaring math accent \string#1}%
        \else
          \expandafter\ifx
          \csname\expandafter\@gobble\string#1\endcsname
          \relax
            \expandafter\set@mathaccent
               \csname sym#3\endcsname#1#2%
               {\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
          \else
            \@latex@error{Command `\string#1' already defined}\@eha
          \fi
        \fi
      \else
       \@latex@error{Not a command name: `\noexpand#1'}\@eha
      \fi
    \endgroup
  \else
    \@latex@error{Symbol font `#3' is not defined}\@eha
  \fi
}
\@onlypreamble\DeclareMathAccent
\def\set@mathaccent#1#2#3#4{%
  \xdef#2{\mathaccent"\mathchar@type#3\hexnumber@#1#4\relax}%
  \MakeRobust#2%
}
\@onlypreamble\set@mathaccent
\def\DeclareMathSymbol#1#2#3#4{%
  \expandafter\in@\csname sym#3\expandafter\endcsname
     \expandafter{\group@list}%
  \ifin@
    \begingroup
      \count\z@=#4\relax
      \count\tw@\count\z@
      \divide\count\z@\sixt@@n
      \count@\count\z@
      \multiply\count@\sixt@@n
      \advance\count\tw@-\count@
      \if\relax\noexpand#1% is command?
        \edef\reserved@b{\expandafter\noexpand
                         \csname\expandafter\@gobble\string#1\space\endcsname}%
        \edef\reserved@a
          {\noexpand\in@{\expandafter\@gobble\string\mathchar}%
                        {\meaning#1\expandafter\meaning\reserved@b}}%
        \reserved@a
        \global\expandafter\let\reserved@b\@undefined
        \ifin@
          \expandafter\set@mathsymbol
             \csname sym#3\endcsname#1#2%
             {\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
          \@font@info{Redeclaring math symbol \string#1}%
        \else
          \expandafter\ifx
            \csname\expandafter\@gobble\string#1\endcsname
            \relax
            \expandafter\set@mathsymbol
               \csname sym#3\endcsname#1#2%
               {\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
          \else
            \@latex@error{Command `\string#1' already defined}\@eha
          \fi
        \fi
      \else
        \expandafter\set@mathchar
          \csname sym#3\endcsname#1#2
          {\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
      \fi
    \endgroup
  \else
    \@latex@error{Symbol font `#3' is not defined}\@eha
  \fi
}
\@onlypreamble\DeclareMathSymbol
\def\set@mathchar#1#2#3#4{%
  \global\mathcode`#2="\mathchar@type#3\hexnumber@#1#4\relax}
\@onlypreamble\set@mathchar
\def\set@mathsymbol#1#2#3#4{%
  \global\mathchardef#2"\mathchar@type#3\hexnumber@#1#4\relax}
\@onlypreamble\set@mathsymbol
\def\DeclareMathDelimiter#1{%
  \if\relax\noexpand#1%
    \expandafter\@DeclareMathDelimiter
  \else
    \expandafter\@xxDeclareMathDelimiter
  \fi
  #1}
\@onlypreamble\DeclareMathDelimiter
\def\@xxDeclareMathDelimiter#1#2#3#4{%
   \begingroup
    \let\mathalpha\mathord
    \ifnum7=\mathchar@type{#2}%
      \endgroup
      \expandafter\@firstofone
    \else
      \endgroup
      \DeclareMathSymbol#1{#2}{#3}{#4}%
      \expandafter\@firstoftwo
    \fi
    {\@xDeclareMathDelimiter#1}{#2}{#3}{#4}}
\@onlypreamble\@xxDeclareMathDelimiter
\def\@DeclareMathDelimiter#1#2#3#4#5#6{%
  \expandafter\in@\csname sym#3\expandafter\endcsname
     \expandafter{\group@list}%
  \ifin@
    \expandafter\in@\csname sym#5\expandafter\endcsname
       \expandafter{\group@list}%
    \ifin@
      \begingroup
        \count\z@=#4\relax
        \count\tw@\count\z@
        \divide\count\z@\sixt@@n
        \count@\count\z@
        \multiply\count@\sixt@@n
        \advance\count\tw@-\count@
        \edef\reserved@c{\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
      %
        \count\z@=#6\relax
        \count\tw@\count\z@
        \divide\count\z@\sixt@@n
        \count@\count\z@
        \multiply\count@\sixt@@n
        \advance\count\tw@-\count@
        \edef\reserved@d{\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
      %
        \edef\reserved@a{\noexpand\in@
            {\expandafter\@gobble\string\delimiter}{\meaning#1}}%
        \reserved@a
        \ifin@
          \expandafter\set@mathdelimiter
             \csname sym#3\expandafter\endcsname
             \csname sym#5\endcsname#1#2%
             \reserved@c\reserved@d
          \@font@info{Redeclaring math delimiter \string#1}%
        \else
            \expandafter\ifx
            \csname\expandafter\@gobble\string#1\endcsname
            \relax
            \expandafter\set@mathdelimiter
              \csname sym#3\expandafter\endcsname
              \csname sym#5\endcsname#1#2%
              \reserved@c\reserved@d
          \else
            \@latex@error{Command `\string#1' already defined}\@eha
          \fi
        \fi
      \endgroup
    \else
      \@latex@error{Symbol font `#5' is not defined}\@eha
    \fi
  \else
    \@latex@error{Symbol font `#3' is not defined}\@eha
  \fi
}
\@onlypreamble\@DeclareMathDelimiter
\def\@xDeclareMathDelimiter#1#2#3#4#5{%
  \expandafter\in@\csname sym#2\expandafter\endcsname
     \expandafter{\group@list}%
  \ifin@
    \expandafter\in@\csname sym#4\expandafter\endcsname
       \expandafter{\group@list}%
    \ifin@
      \begingroup
        \count\z@=#3\relax
        \count\tw@\count\z@
        \divide\count\z@\sixt@@n
        \count@\count\z@
        \multiply\count@\sixt@@n
        \advance\count\tw@-\count@
        \edef\reserved@c{\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
      %
        \count\z@=#5\relax
        \count\tw@\count\z@
        \divide\count\z@\sixt@@n
        \count@\count\z@
        \multiply\count@\sixt@@n
        \advance\count\tw@-\count@
        \edef\reserved@d{\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
        \expandafter\set@@mathdelimiter
           \csname sym#2\expandafter\endcsname\csname sym#4\endcsname#1%
           \reserved@c\reserved@d
      \endgroup
    \else
      \@latex@error{Symbol font `#4' is not defined}\@eha
    \fi
  \else
    \@latex@error{Symbol font `#2' is not defined}\@eha
  \fi
}
\@onlypreamble\@xDeclareMathDelimiter
\def\set@mathdelimiter#1#2#3#4#5#6{%
  \protected
  \xdef#3{\delimiter"\mathchar@type#4\hexnumber@#1#5%
    \hexnumber@#2#6 }%
}
\@onlypreamble\set@mathdelimiter
\def\set@@mathdelimiter#1#2#3#4#5{%
  \global\delcode`#3="\hexnumber@#1#4\hexnumber@#2#5\relax}
\@onlypreamble\set@@mathdelimiter
\def\DeclareMathRadical#1#2#3#4#5{%
  \expandafter\ifx
       \csname\expandafter\@gobble\string#1\endcsname
       \relax
     \let#1\radical
  \fi
  \edef\reserved@a{\noexpand\in@
       {\expandafter\@gobble\string\radical}{\meaning#1}}%
  \reserved@a
  \ifin@
    \expandafter\in@\csname sym#2\expandafter\endcsname
       \expandafter{\group@list}%
    \ifin@
      \expandafter\in@\csname sym#4\expandafter\endcsname
         \expandafter{\group@list}%
      \ifin@
        \begingroup
          \count\z@=#3\relax
          \count\tw@\count\z@
          \divide\count\z@\sixt@@n
          \count@\count\z@
          \multiply\count@\sixt@@n
          \advance\count\tw@-\count@
          \edef\reserved@c{%
            \hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
          \count\z@=#5\relax
          \count\tw@\count\z@
          \divide\count\z@\sixt@@n
          \count@\count\z@
          \multiply\count@\sixt@@n
          \advance\count\tw@-\count@
          \edef\reserved@d{%
            \hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
          \xdef#1{\radical"\expandafter\hexnumber@
                                \csname sym#2\endcsname\reserved@c
                             \expandafter\hexnumber@
                                \csname sym#4\endcsname\reserved@d
                  \relax}%
        \endgroup
      \else
        \@latex@error{Symbol font `#4' is not defined}\@eha
      \fi
    \else
      \@latex@error{Symbol font `#2' is not defined}\@eha
    \fi
  \else
    \@latex@error{Command `\string#1' already defined}\@eha
  \fi
}
\@onlypreamble\DeclareMathRadical
\let\mathalpha\relax
\def\mathchar@type#1{%
  \ifodd 2#11 #1\else             % is this non-negative number?
    \ifx#1\mathord 0\else
     \ifx#1\mathop   1\else
       \ifx#1\mathbin 2\else
         \ifx#1\mathrel 3\else
           \ifx#1\mathopen 4\else
             \ifx#1\mathclose 5\else
               \ifx#1\mathpunct 6\else
                   7%             % anything else is variable ord
               \fi
             \fi
           \fi
         \fi
       \fi
     \fi
    \fi
  \fi}
\@onlypreamble\mathchar@type
\def\DeclareSymbolFontAlphabet#1#2{%
   \expandafter\DeclareSymbolFontAlphabet@
     \csname \expandafter\@gobble\string#1\space\endcsname{#2}#1}
\@onlypreamble\DeclareSymbolFontAlphabet
\def\DeclareSymbolFontAlphabet@#1#2#3{%
    \@tempswatrue
  \expandafter\in@\csname sym#2\expandafter\endcsname
     \expandafter{\group@list}%
  \ifin@
    \expandafter\in@\expandafter#1\expandafter{\alpha@list}%
    \ifin@
      \@font@info{Redeclaring math alphabet \string#3}%
      \toks@{}%
      \def\alpha@elt##1##2##3{%
          \ifx##1#1\else\addto@hook\toks@{\alpha@elt##1##2##3}\fi}%
      \alpha@list
      \xdef\alpha@list{\the\toks@}%
      \def\version@elt##1{%
          \begingroup
            \toks@{}%
            \def\getanddefine@fonts####1####2{%
               \addto@hook\toks@{\getanddefine@fonts####1####2}}%
            \def\install@mathalphabet####1####2{%
               \ifx####1#1\else
                 \addto@hook\toks@{\install@mathalphabet
                                    ####1{####2}}\fi}%
            ##1%
            \xdef##1{\the\toks@}%
          \endgroup
          }%
      \version@list
    \else
      \expandafter\ifx
      \csname\expandafter\@gobble\string#1\space\endcsname
      \relax
      \else
        \edef\reserved@a{%
          \noexpand\in@{\string\use@mathgroup}{\meaning#1}}%
        \reserved@a
        \ifin@
          \@font@info{Redeclaring math alphabet \string#3}%
        \else
          \@tempswafalse
          \@latex@error{Command `\string#3' already defined}\@eha
        \fi
      \fi
    \fi
   \else
     \@tempswafalse
     \@latex@error{Unknown symbol font `#2'}\@eha
   \fi
   \if@tempswa
     \def\group@elt##1##2{%
        \expandafter\ifx\csname sym#2\endcsname##1%
        \expandafter\reserved@a\string##2\@nil
        \fi}%
     \def\reserved@a##1##2/##3\@nil{%
        \def\reserved@a{##2}}%
     \group@list
     \toks@{\relax\ifmmode \else \non@alpherr#1\fi}%
     \edef#1{\the\toks@
             \noexpand\use@mathgroup
             \expandafter\noexpand\csname M@\reserved@a\endcsname
             \csname sym#2\endcsname}%
     \def#3{\protect#1}%
   \fi
}
\@onlypreamble\DeclareSymbolFontAlphabet@
%%% From File: ltfssini.dtx
%% Copyright (C) 1989-2001 Frank Mittelbach and Rainer Sch\"opf,
%% all rights reserved.
\message{NFSS initialization,}
\DeclareMathVersion{normal}
\DeclareMathVersion{bold}
\DeclareRobustCommand\upshape
        {\not@math@alphabet\upshape\relax
         \fontshape\updefault\selectfont}
\DeclareRobustCommand\slshape
        {\not@math@alphabet\slshape\relax
         \fontshape\sldefault\selectfont}
\DeclareRobustCommand\scshape
        {\not@math@alphabet\scshape\relax
         \fontshape\scdefault\selectfont}
\DeclareRobustCommand\itshape
        {\not@math@alphabet\itshape\mathit
         \fontshape\itdefault\selectfont}
\let\DeclareFontSeriesDefault\@undefined      % for rollback
\newcommand\DeclareFontSeriesDefault[3][]{%
  \expand@font@defaults
  \maybe@update@bfseries@defaults
  \maybe@update@mdseries@defaults
  \def\reserved@a{#1}%
  \ifx\reserved@a\@empty
    \ifcsname #2series\endcsname           % supported are
                                           % \[md/bf]default
      \expandafter\def
        \csname #2default\endcsname{#3\@empty}%
      \expandafter\def
        \csname #2default@previous\endcsname{#3\@empty}%
    \else
       \@latex@error{Wrong syntax for \string\DeclareFontSeriesDefault}%
          {Mandatory first argument must be 'md'  or 'bf'.}
    \fi
  \else
    \ifcsname #2series@#1\endcsname          % supported are
                                             % \[md/bf]series@[rm/sf/tt]
      \expandafter\edef
         \csname #2series@#1\endcsname{#3}%
      \expandafter\let
         \csname #2series@#1@kernel\endcsname\@undefined
    \else
       \@latex@error{Wrong syntax for \string\DeclareFontSeriesDefault}%
          {Optional argument must be 'rm', 'sf', or 'tt'. \MessageBreak
           Mandatory first argument must be 'md'  or 'bf'.}
    \fi
  \fi
}



\def\bfseries@rm{bx}
\def\bfseries@sf{bx}
\def\bfseries@tt{bx}
\let\bfseries@rm@kernel\bfseries@rm
\let\bfseries@sf@kernel\bfseries@sf
\let\bfseries@tt@kernel\bfseries@tt
\def\mdseries@rm{m}
\def\mdseries@sf{m}
\def\mdseries@tt{m}

\def\@meta@family@list{\@elt{rm}\@elt{sf}\@elt{tt}}
\def\prepare@family@series@update#1#2{%
 \if@forced@series
   \fontfamily#2%
 \else
   \expand@font@defaults
   \let\target@series@value\@empty
   \def\target@meta@family@value{#1}%
   \expandafter\edef\csname ??def@ult\endcsname{\f@family}%
   \let\@elt\update@series@target@value
      \@meta@family@list
      \@elt{??}%
   \let\@elt\relax
   \fontfamily#2%
   \ifx\target@series@value\@empty
   \else
     \ifx \f@series\target@series@value
     \else
       \maybe@load@fontshape
       \series@maybe@drop@one@m\target@series@value\f@series
     \fi
   \fi
 \fi
}
\def\update@series@target@value#1{%
  \def\reserved@a{#1}%
  \ifx\target@meta@family@value\reserved@a   % rm -> rm do nothing
  \else
    \expandafter\ifx\csname#1def@ult\endcsname\f@family
      \let\@elt\@gobble
      \expandafter\let\expandafter\reserved@b
                      \csname mdseries@\target@meta@family@value\endcsname
      \expandafter\let\expandafter\reserved@c
                      \csname bfseries@\target@meta@family@value\endcsname
      \expandafter\series@maybe@drop@one@m
          \csname mdseries@#1\endcsname\reserved@d
      \ifx\reserved@d\f@series
                                      \let\target@series@value\reserved@b
      \else
        \expandafter\series@maybe@drop@one@m
           \csname bfseries@#1\endcsname\reserved@d
        \ifx\reserved@d\f@series
                                      \let\target@series@value\reserved@c
      \else\ifx\f@series\mddef@ult    \let\target@series@value\reserved@b
      \else\ifx\f@series\bfdef@ult    \let\target@series@value\reserved@c
      \fi\fi\fi\fi
    \fi
  \fi
}
\def\init@series@setup{%
  \ifx\bfseries@rm@kernel\bfseries@rm
     \expandafter\in@\expandafter{\rmdefault}%
                     {cmr,cmss,cmtt,lcmss,lcmtt,lmr,lmss,lmtt}%
    \ifin@ \else \def\bfseries@rm{b}\fi\fi
  \ifx\bfseries@sf@kernel\bfseries@sf
    \expandafter\in@\expandafter{\sfdefault}%
                    {cmr,cmss,cmtt,lcmss,lcmtt,lmr,lmss,lmtt}%
    \ifin@ \else \def\bfseries@sf{b}\fi\fi
  \ifx\bfseries@tt@kernel\bfseries@tt
    \expandafter\in@\expandafter{\ttdefault}%
                    {cmr,cmss,cmtt,lcmss,lcmtt,lmr,lmss,lmtt}%
    \ifin@ \else \def\bfseries@tt{b}\fi\fi
  \reset@font
  \ifx\seriesdefault\seriesdefault@kernel
    \mdseries
    \let\seriesdefault\f@series
  \fi
}%
\expandafter\let\csname ver@mweights.sty\endcsname\fmtversion

\DeclareRobustCommand\bfseries{%
  \not@math@alphabet\bfseries\mathbf
  \expand@font@defaults
  \maybe@update@bfseries@defaults
  \ifx\f@family\rmdef@ult      \fontseries\bfseries@rm
  \else\ifx\f@family\sfdef@ult \fontseries\bfseries@sf
  \else\ifx\f@family\ttdef@ult \fontseries\bfseries@tt
  \else                        \fontseries\bfdefault
  \fi\fi\fi
  \UseHook{bfseries}%
  \selectfont
}

\def\maybe@update@bfseries@defaults{%
  \ifx\bfdefault\bfdefault@previous\else
    \expandafter\def\expandafter\bfdefault
                    \expandafter{\bfdefault\@empty}%
    \let\bfdefault@previous\bfdefault
    \let\bfseries@rm\bfdef@ult
    \let\bfseries@sf\bfdef@ult
    \let\bfseries@tt\bfdef@ult
    \UseHook{bfseries/defaults}%
  \fi
}

\DeclareRobustCommand\mdseries{%
  \not@math@alphabet\mdseries\relax
  \expand@font@defaults
  \maybe@update@mdseries@defaults
  \ifx\f@family\rmdef@ult      \fontseries\mdseries@rm
    \else\ifx\f@family\sfdef@ult \fontseries\mdseries@sf
    \else\ifx\f@family\ttdef@ult \fontseries\mdseries@tt
    \else                        \fontseries\mddefault
  \fi\fi\fi
  \UseHook{mdseries}%
  \selectfont
}

\def\maybe@update@mdseries@defaults{%
  \ifx\mddefault\mddefault@previous\else
    \expandafter\def\expandafter\mddefault\expandafter{\mddefault\@empty}%
    \let\mddefault@previous\mddefault
    \let\mdseries@rm\mddef@ult
    \let\mdseries@sf\mddef@ult
    \let\mdseries@tt\mddef@ult
    \UseHook{mdseries/defaults}%
  \fi
}



\def\expand@font@defaults{%
  \edef\rmdef@ult{\rmdefault}%
  \edef\sfdef@ult{\sfdefault}%
  \edef\ttdef@ult{\ttdefault}%
  \series@maybe@drop@one@m\bfdefault\bfdef@ult
  \series@maybe@drop@one@m\mddefault\mddef@ult
  \UseHook{expand@font@defaults}%
}

\DeclareRobustCommand\rmfamily{%
   \not@math@alphabet\rmfamily\mathrm
   \prepare@family@series@update{rm}\rmdefault
   \UseHook{rmfamily}%
   \selectfont}
\DeclareRobustCommand\sffamily{%
   \not@math@alphabet\sffamily\mathsf
   \prepare@family@series@update{sf}\sfdefault
   \UseHook{sffamily}%
   \selectfont}
\DeclareRobustCommand\ttfamily{%
   \not@math@alphabet\ttfamily\mathtt
   \prepare@family@series@update{tt}\ttdefault
   \UseHook{ttfamily}%
   \selectfont}
\NewHook{rmfamily}
\NewHook{sffamily}
\NewHook{ttfamily}
\NewHook{normalfont}
\NewHook{expand@font@defaults}
\NewHook{bfseries}
\NewHook{bfseries/defaults}
\NewHook{mdseries}
\NewHook{mdseries/defaults}
\let\@rmfamilyhook\@empty
\let\@sffamilyhook\@empty
\let\@ttfamilyhook\@empty
\let\@defaultfamilyhook\@empty   %FMi sort out
\DeclareRobustCommand\IfFontSeriesContextTF[1]{%
  \expand@font@defaults
  \@font@series@contextfalse
  \def\requested@test@context{#1}%
  \expandafter\edef\csname ??def@ult\endcsname{\f@family}%
  \let\@elt\test@font@series@context
      \@meta@family@list
      \@elt{??}%
  \let\@elt\relax
  \if@font@series@context
  \expandafter\@firstoftwo
  \else
  \expandafter\@secondoftwo
  \fi
}

\def\test@font@series@context#1{%
  \edef\reserved@a{\csname #1def@ult\endcsname}%
  \ifx\f@family\reserved@a
    \let\@elt\@gobble
    \expandafter\ifx
                \csname\requested@test@context series@#1\endcsname\f@series
      \@font@series@contexttrue
    \else
      \expandafter\ifx
                  \csname\requested@test@context def@ult\endcsname\f@series
        \@font@series@contexttrue
  \fi\fi\fi
}
\newif\if@font@series@context
\def\DeclareEmphSequence#1{%
  \protected@edef\emfontdeclare@clist{\zap@space#1, \@empty\emforce\emreset}%
}
\let\emfontdeclare@clist\@empty
\DeclareRobustCommand\emreset{\upshape\ulcshape}
\DeclareRobustCommand\em{%
  \@nomath\em
  \ifx\emfontdeclare@clist\@empty
    \ifdim \fontdimen\@ne\font >\z@
      \eminnershape \else \itshape \fi
  \else
  \edef\em@currfont{\csname\curr@fontshape/\f@size\endcsname}%
    \expandafter\do@emfont@update\emfontdeclare@clist\do@emfont@update
  \fi
}
\def\eminnershape{\upshape}
\def\do@emfont@update#1,#2\do@emfont@update{%
  \def\emfontdeclare@clist{#2,#1}%
  #1\selectfont
  \expandafter\ifx\csname \curr@fontshape/\f@size\em@force
                          \expandafter\endcsname
                  \em@currfont
  \expandafter\do@emfont@update\emfontdeclare@clist\do@emfont@update
  \else
    \let\em@force\@empty
  \fi
}

\protected\def\emforce{\def\em@force{/}}
\let\em@force\@empty


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\def\not@math@alphabet#1#2{%
   \relax
   \ifmmode
     \@latex@error{Command \noexpand#1invalid in math mode}%
        {%
         Please
         \ifx#2\relax
            define a new math alphabet^^J%
            if you want to use a special font in math mode%
          \else
            use the math alphabet \noexpand#2instead of
            the #1command%
         \fi
         .
        }%
   \fi}
\DeclareRobustCommand\boldmath{\@nomath\boldmath
              \mathversion{bold}}
\DeclareRobustCommand\unboldmath{\@nomath\unboldmath
              \mathversion{normal}}
\def\math@version{normal}
\def\newfont#1#2{\@ifdefinable#1{\font#1=#2\relax}}
\ifdefined\XeTeXversion
  \DeclareRobustCommand\symbol[1]{\Ucharcat#1 12\relax}
\else
  \DeclareRobustCommand\symbol[1]{\char#1\relax}
\fi
\def\@setfontsize#1#2#3{\@nomath#1%
    \ifx\protect\@typeset@protect
      \let\@currsize#1%
    \fi
    \fontsize{#2}{#3}\selectfont}
\def\@setsize#1#2#3#4{\@setfontsize#1{#4}{#2}}
\def\hexnumber@#1{\ifcase\number#1
 0\or 1\or 2\or 3\or 4\or 5\or 6\or 7\or 8\or
 9\or A\or B\or C\or D\or E\or F\fi}
\def\nfss@text#1{{\mbox{#1}}}
\DeclareRobustCommand\normalfont{%
   \fontencoding\encodingdefault
   \edef\f@family{\familydefault}%
   \edef\f@series{\seriesdefault}%
   \edef\f@shape{\shapedefault}%
   \let\delayed@f@adjustment\@empty
   \UseHook{normalfont}%
   \@defaultfamilyhook        % hookname from 2020/02 will vanish
   \selectfont}
\let\reset@font\normalfont
\def\not@base#1{\@latex@error
  {Command \noexpand#1not provided in base LaTeX2e}%
  {Load the latexsym or the amsfonts package to
   define this symbol}}
\def\mho{\not@base\mho}
\def\Join{\not@base\Join}
\def\Box{\not@base\Box}
\def\Diamond{\not@base\Diamond}
\def\leadsto{\not@base\leadsto}
\def\sqsubset{\not@base\sqsubset}
\def\sqsupset{\not@base\sqsupset}
\def\lhd{\not@base\lhd}
\def\unlhd{\not@base\unlhd}
\def\rhd{\not@base\rhd}
\def\unrhd{\not@base\unrhd}
\DeclareErrorFont{OT1}{cmr}{m}{n}{10}  %% don't modify this setting
                                       %% overwrite it in fontdef.cfg
                                       %% if necessary
\fontfamily{cmr}
\def\f@series{m}           % \fontseries{m}
\def\f@shape{n}            % \fontshape{n}
\fontsize{10}{10}
\def\@fontenc@load@list{\@elt{T1,OT1}}
\InputIfFileExists{fonttext.cfg}
           {\typeout{====================================^^J%
                     ^^J%
                      Local config file fonttext.cfg used^^J%
                     ^^J%
                     ====================================}%
             \def\@addtofilelist##1{\xdef\@filelist{\@filelist,##1}}%
            }
           {\input{fonttext.ltx}}
\let\@addtofilelist\@gobble
\InputIfFileExists{fontmath.cfg}
           {\typeout{====================================^^J%
                     ^^J%
                      Local config file fontmath.cfg used^^J%
                     ^^J%
                     ====================================}%
             \def\@addtofilelist##1{\xdef\@filelist{\@filelist,##1}}%
            }
           {\input{fontmath.ltx}}
\let\@addtofilelist\@gobble
\InputIfFileExists{preload.cfg}
           {\typeout{====================================^^J%
                     ^^J%
                      Local config file preload.cfg used^^J%
                     ^^J%
                     =====================================}%
             \def\@addtofilelist##1{\xdef\@filelist{\@filelist,##1}}%
            }
           {\input{preload.ltx}}
\let\@addtofilelist\@gobble
\expandafter\def\expandafter\seriesdefault\expandafter{\seriesdefault\@empty}
\let\seriesdefault@kernel\seriesdefault
\let\@acci\' \let\@accii\` \let\@acciii\=
%%% From File: ltfntcmd.dtx
%%
\def \DeclareTextFontCommand #1#2{%
  \DeclareRobustCommand#1[1]{%
    \ifmmode
      \nfss@text{#2##1}%
    \else
      \hmode@bgroup
       \text@command{##1}%
       #2\check@icl ##1\check@icr
       \expandafter
      \egroup
    \fi
                       }%
}
\DeclareTextFontCommand{\textrm}{\rmfamily}
\DeclareTextFontCommand{\textsf}{\sffamily}
\DeclareTextFontCommand{\texttt}{\ttfamily}
\DeclareTextFontCommand{\textnormal}{\normalfont}
\DeclareTextFontCommand{\textbf}{\bfseries}
\DeclareTextFontCommand{\textmd}{\mdseries}
\DeclareTextFontCommand{\textit}{\itshape}
\DeclareTextFontCommand{\textsl}{\slshape}
\DeclareTextFontCommand{\textsc}{\scshape}
\DeclareTextFontCommand{\textup}{\upshape}

\DeclareTextFontCommand{\textulc}{\ulcshape}
\DeclareTextFontCommand{\textsw}{\swshape}
\DeclareTextFontCommand{\textssc}{\sscshape}
\DeclareTextFontCommand{\emph}{\em}
\let \nocorr \relax
\let \check@icl \@empty
\let \check@icr \@empty
\def \text@command #1{%
  \edef \reserved@a {\unexpanded{#1}}%
  \ifx \reserved@a \@empty
    \let \check@icl \@empty
    \let \check@icr \@empty
  \else
    \ifx \reserved@a \space
      \let \check@icl \@empty
      \let \check@icr \@empty
    \else
      \check@nocorr@ #1\nocorr\@nil
    \fi
  \fi
}
\def \check@nocorr@ #1#2\nocorr#3\@nil {%
  \let \check@icl \maybe@ic
  \def \check@icr {\ifvmode \else \aftergroup \maybe@ic \fi}%
  \def \reserved@a {\nocorr}%
  \def \reserved@b {#1}%
  \def \reserved@c {#3}%
  \ifx \reserved@a \reserved@b
    \ifx \reserved@c \@empty
      \let \check@icl \@empty
    \else
      \let \check@icl \@empty
      \let \check@icr \@empty
    \fi
  \else
    \ifx \reserved@c \@empty
    \else
      \let \check@icr \@empty
    \fi
  \fi
}
\newif\ifmaybe@ic

\def \maybe@ic {\futurelet\@let@token\maybe@ic@}
\def \maybe@ic@ {%
  \ifdim  \fontdimen\@ne\font>\z@
  \else
    \maybe@ictrue
    \expandafter\@tfor\expandafter\reserved@a\expandafter:\expandafter=%
        \nocorrlist
    \do \t@st@ic
    \ifmaybe@ic \sw@slant \fi
  \fi
}
\def \t@st@ic {%
  \expandafter\let\expandafter\reserved@b\expandafter=\reserved@a\relax
  \ifx\reserved@b\@let@token
    \maybe@icfalse
    \@break@tfor
  \fi
}
\def \sw@slant {%
  \ifdim \lastskip=\z@
    \fix@penalty
  \else
    \skip@ \lastskip
    \unskip
    \fix@penalty
    \hskip \skip@
  \fi
}
\def \fix@penalty {%
  \ifnum \lastpenalty=\z@
    \@@italiccorr
  \else
    \count@ \lastpenalty
    \unpenalty
    \@@italiccorr
    \penalty \count@
  \fi
}
\def \nocorrlist {,.}
\ifx \nfss@text\@undefined
  \def \nfss@text {\leavevmode\hbox}
\fi
\def \DeclareOldFontCommand #1#2#3{%
  \DeclareRobustCommand #1{\@fontswitch {#2}{#3}}%
}
\def \@fontswitch #1#2{%
  \ifmmode
     \let \math@bgroup \relax
     \def \math@egroup {\let \math@bgroup \@@math@bgroup
                        \let \math@egroup \@@math@egroup}%
     #2\relax
  \else
     #1%
  \fi
}
\let \@@math@bgroup \math@bgroup
\let \@@math@egroup \math@egroup
\@onlypreamble \DeclareTextFontCommand
\@onlypreamble \DeclareOldFontCommand
\def\normalsize{%
  \@latex@error {The font size command \protect\normalsize\space
              is not defined:\MessageBreak
              there is probably something wrong with
              the class file}\@eha
}
%%% From File: lttextcomp.dtx
\DeclareRobustCommand\legacyoldstylenums[1]{%
   \begingroup
    \spaceskip\fontdimen\tw@\font
    \usefont{OML}{\rmdefault}{\f@series}{it}%
    \mathgroup\symletters #1%
   \endgroup
}
\DeclareRobustCommand\oldstylenums[1]{%
 \begingroup
 \ifmmode
   \mathgroup\symletters #1%
  \else
   \CheckEncodingSubset\@use@text@encoding{TS1}\tc@oldstylesubst2{{#1}}%
 \fi
 \endgroup
}
\def\tc@oldstylesubst#1{%
   \tc@errorwarn
          {Oldstyle digits unavailable for
           family \f@family.\MessageBreak
           Default oldstyle digits used instead}\@eha
  \bgroup
      \expand@font@defaults
      \ifx\f@family\rmdef@ult
         \fontfamily\rmsubstdefault
      \else\ifx\f@family\sfdef@ult
         \fontfamily\sfsubstdefault
      \else\ifx\f@family\ttdef@ult
         \fontfamily\ttsubstdefault
      \else
        \fontfamily\textcompsubstdefault
      \fi\fi\fi
      \fontencoding{TS1}\selectfont#1%
  \egroup
}
\def\textcompsubstdefault{\rmsubstdefault}
\def\tc@errorwarn#1#2{\@latex@info{#1}}

\def\tc@subst#1{%
   \tc@errorwarn
    {Symbol \string#1 not provided by\MessageBreak
     font family \f@family\space
     in TS1 encoding.\MessageBreak Default family used instead}\@eha
  \bgroup
      \expand@font@defaults
      \ifx\f@family\rmdef@ult
         \fontfamily\rmsubstdefault
      \else\ifx\f@family\sfdef@ult
         \fontfamily\sfsubstdefault
      \else\ifx\f@family\ttdef@ult
         \fontfamily\ttsubstdefault
      \else
         \fontfamily\textcompsubstdefault
      \fi\fi\fi
      \@namedef{TS1:\f@family}{0}%
      \selectfont#1%
  \egroup
}
\def\tc@fake@euro#1{%
   \leavevmode
   \@font@info{Faking \noexpand#1for font family
                          \f@family\MessageBreak in TS1 encoding}%
   \valign{##\cr
      \vfil\hbox to 0.07em{\dimen@\f@size\p@
                           \math@fontsfalse
                           \fontsize{.7\dimen@}\z@\selectfont=\hss}%
      \vfil\cr%
      \hbox{C}\crcr
   }%
}
\def\tc@check@symbol{\CheckEncodingSubset\UseTextSymbol{TS1}\tc@subst}
\def\tc@check@accent#1{\CheckEncodingSubset\UseTextAccent
                                           {TS1}{\tc@swap@accent#1}}
\def\tc@swap@accent#1#2{\UseTextAccent{T1}#1}

\DeclareTextSymbolDefault{\textdollar}{TS1}
\UndeclareTextCommand{\textdollar}{OT1}  % don't use the OT1 def any longer
\DeclareTextSymbolDefault{\textsterling}{TS1}
\UndeclareTextCommand{\textsterling}{OT1}% don't use the OT1 def any longer
\DeclareTextSymbolDefault{\textperthousand}{TS1}
\UndeclareTextCommand{\textperthousand}{T1} % don't use the T1 def
\DeclareTextSymbolDefault{\textasteriskcentered}{TS1}
\DeclareTextSymbolDefault{\textbullet}{TS1}
\DeclareTextSymbolDefault{\textdaggerdbl}{TS1}
\DeclareTextSymbolDefault{\textdagger}{TS1}
\DeclareTextSymbolDefault{\textparagraph}{TS1}
\DeclareTextSymbolDefault{\textperiodcentered}{TS1}
\DeclareTextSymbolDefault{\textsection}{TS1}
%%\DeclareTextSymbolDefault{\textbardbl}{TS1} % subst in sub-enc 9 above
\DeclareTextSymbolDefault{\textbrokenbar}{TS1}
%%\DeclareTextSymbolDefault{\textcelsius}{TS1} % subst in sub-enc 9 above
\DeclareTextSymbolDefault{\textcent}{TS1}
\DeclareTextSymbolDefault{\textcopyright}{TS1}
\DeclareTextSymbolDefault{\textdegree}{TS1}
\DeclareTextSymbolDefault{\textdiv}{TS1}
\DeclareTextSymbolDefault{\textlnot}{TS1}
\DeclareTextSymbolDefault{\textonehalf}{TS1}
\DeclareTextSymbolDefault{\textonequarter}{TS1}
%%\DeclareTextSymbolDefault{\textonesuperior}{TS1} % subst in sub-enc 9 above
\DeclareTextSymbolDefault{\textordfeminine}{TS1}
\DeclareTextSymbolDefault{\textordmasculine}{TS1}
\DeclareTextSymbolDefault{\textpm}{TS1}
\DeclareTextSymbolDefault{\textquotesingle}{TS1}
\DeclareTextSymbolDefault{\textquotestraightbase}{TS1}
\DeclareTextSymbolDefault{\textquotestraightdblbase}{TS1}
\DeclareTextSymbolDefault{\textregistered}{TS1}
%%\DeclareTextSymbolDefault{\textthreequartersemdash}{TS1} % subst in sub-enc 9 above
\DeclareTextSymbolDefault{\textthreequarters}{TS1}
%%\DeclareTextSymbolDefault{\textthreesuperior}{TS1} % subst in sub-enc 9 above
\DeclareTextSymbolDefault{\texttimes}{TS1}
\DeclareTextSymbolDefault{\texttrademark}{TS1}
%%\DeclareTextSymbolDefault{\texttwelveudash}{TS1} % subst in sub-enc 9 above
%%\DeclareTextSymbolDefault{\texttwosuperior}{TS1} % subst in sub-enc 9 above
\DeclareTextSymbolDefault{\textyen}{TS1}
\DeclareTextSymbolDefault{\textcapitalcompwordmark}{TS1}
\DeclareTextSymbolDefault{\textascendercompwordmark}{TS1}
\DeclareTextCommandDefault{\textcircled}
  {\CheckEncodingSubset\UseTextAccent{TS1}{\UseTextAccent{OMS}}1\textcircled}
\DeclareTextCommandDefault{\t}
  {\CheckEncodingSubset\UseTextAccent{TS1}{\UseTextAccent{OML}}2\t}
\ifx\Umathcode\@undefined
  \DeclareTextCommandDefault{\capitalacute}
                            {\tc@check@accent{\'}2\capitalacute}
  \DeclareTextCommandDefault{\capitalbreve}
                            {\tc@check@accent{\u}2\capitalbreve}
  \DeclareTextCommandDefault{\capitalcaron}
                            {\tc@check@accent{\v}2\capitalcaron}
  \DeclareTextCommandDefault{\capitalcedilla}
                            {\tc@check@accent{\c}2\capitalcedilla}
  \DeclareTextCommandDefault{\capitalcircumflex}
                            {\tc@check@accent{\^}2\capitalcircumflex}
  \DeclareTextCommandDefault{\capitaldieresis}
                            {\tc@check@accent{\"}2\capitaldieresis}
  \DeclareTextCommandDefault{\capitaldotaccent}
                            {\tc@check@accent{\.}2\capitaldotaccent}
  \DeclareTextCommandDefault{\capitalgrave}
                            {\tc@check@accent{\`}2\capitalgrave}
  \DeclareTextCommandDefault{\capitalhungarumlaut}
                            {\tc@check@accent{\H}2\capitalhungarumlaut}
  \DeclareTextCommandDefault{\capitalmacron}
                            {\tc@check@accent{\=}2\capitalmacron}
  \DeclareTextCommandDefault{\capitalogonek}
                            {\tc@check@accent{\k}2\capitalogonek}
  \DeclareTextCommandDefault{\capitalring}
                            {\tc@check@accent{\r}2\capitalring}
  \DeclareTextCommandDefault{\capitaltie}
                            {\tc@check@accent{\t}2\capitaltie}
  \DeclareTextCommandDefault{\capitaltilde}
                            {\tc@check@accent{\~}2\capitaltilde}
  \DeclareTextCommandDefault{\newtie}
                            {\tc@check@accent{\t}2\newtie}
  \DeclareTextCommandDefault{\capitalnewtie}
                            {\tc@check@accent{\t}2\capitalnewtie}
\else
  \DeclareTextCommandDefault\capitalacute{\@tabacckludge'}
  \DeclareTextCommandDefault\capitalbreve{\u}
  \DeclareTextCommandDefault\capitalcaron{\v}
  \DeclareTextCommandDefault\capitalcedilla{\c}
  \DeclareTextCommandDefault\capitalcircumflex{\^}
  \DeclareTextCommandDefault\capitaldieresis{\"}
  \DeclareTextCommandDefault\capitaldotaccent{\.}
  \DeclareTextCommandDefault\capitalgrave{\@tabacckludge`}
  \DeclareTextCommandDefault\capitalhungarumlaut{\H}
  \DeclareTextCommandDefault\capitalmacron{\@tabacckludge=}
  \DeclareTextCommandDefault\capitalnewtie{\t}
  \DeclareTextCommandDefault\capitalogonek{\k}
  \DeclareTextCommandDefault\capitalring{\r}
  \DeclareTextCommandDefault\capitaltie{\t}
  \DeclareTextCommandDefault\capitaltilde{\~}
  \DeclareTextCommandDefault\newtie{\t}
\fi
\DeclareTextCommandDefault{\textlbrackdbl}
                          {\tc@check@symbol2\textlbrackdbl}
\DeclareTextCommandDefault{\textrbrackdbl}
                          {\tc@check@symbol2\textrbrackdbl}
\DeclareTextCommandDefault{\texteightoldstyle}
                          {\tc@check@symbol2\texteightoldstyle}
\DeclareTextCommandDefault{\textfiveoldstyle}
                          {\tc@check@symbol2\textfiveoldstyle}
\DeclareTextCommandDefault{\textfouroldstyle}
                          {\tc@check@symbol2\textfouroldstyle}
\DeclareTextCommandDefault{\textnineoldstyle}
                          {\tc@check@symbol2\textnineoldstyle}
\DeclareTextCommandDefault{\textoneoldstyle}
                          {\tc@check@symbol2\textoneoldstyle}
\DeclareTextCommandDefault{\textsevenoldstyle}
                          {\tc@check@symbol2\textsevenoldstyle}
\DeclareTextCommandDefault{\textsixoldstyle}
                          {\tc@check@symbol2\textsixoldstyle}
\DeclareTextCommandDefault{\textthreeoldstyle}
                          {\tc@check@symbol2\textthreeoldstyle}
\DeclareTextCommandDefault{\texttwooldstyle}
                          {\tc@check@symbol2\texttwooldstyle}
\DeclareTextCommandDefault{\textzerooldstyle}
                          {\tc@check@symbol2\textzerooldstyle}
\DeclareTextCommandDefault{\textacutedbl}
                          {\tc@check@symbol2\textacutedbl}
\DeclareTextCommandDefault{\textasciiacute}
                          {\tc@check@symbol2\textasciiacute}
\DeclareTextCommandDefault{\textasciibreve}
                          {\tc@check@symbol2\textasciibreve}
\DeclareTextCommandDefault{\textasciicaron}
                          {\tc@check@symbol2\textasciicaron}
\DeclareTextCommandDefault{\textasciidieresis}
                          {\tc@check@symbol2\textasciidieresis}
\DeclareTextCommandDefault{\textasciigrave}
                          {\tc@check@symbol2\textasciigrave}
\DeclareTextCommandDefault{\textasciimacron}
                          {\tc@check@symbol2\textasciimacron}
\DeclareTextCommandDefault{\textgravedbl}
                          {\tc@check@symbol2\textgravedbl}
\DeclareTextCommandDefault{\texttildelow}
                          {\tc@check@symbol2\texttildelow}
\DeclareTextCommandDefault{\textbaht}
                          {\tc@check@symbol2\textbaht}
\DeclareTextCommandDefault{\textbigcircle}
                          {\tc@check@symbol2\textbigcircle}
\DeclareTextCommandDefault{\textborn}
                          {\tc@check@symbol2\textborn}
\DeclareTextCommandDefault{\textcentoldstyle}
                          {\tc@check@symbol2\textcentoldstyle}
\DeclareTextCommandDefault{\textcircledP}
                          {\tc@check@symbol2\textcircledP}
\DeclareTextCommandDefault{\textcopyleft}
                          {\tc@check@symbol2\textcopyleft}
\DeclareTextCommandDefault{\textdblhyphenchar}
                          {\tc@check@symbol2\textdblhyphenchar}
\DeclareTextCommandDefault{\textdblhyphen}
                          {\tc@check@symbol2\textdblhyphen}
\DeclareTextCommandDefault{\textdied}
                          {\tc@check@symbol2\textdied}
\DeclareTextCommandDefault{\textdiscount}
                          {\tc@check@symbol2\textdiscount}
\DeclareTextCommandDefault{\textdivorced}
                          {\tc@check@symbol2\textdivorced}
\DeclareTextCommandDefault{\textdollaroldstyle}
                          {\tc@check@symbol2\textdollaroldstyle}
\DeclareTextCommandDefault{\textguarani}
                          {\tc@check@symbol2\textguarani}
\DeclareTextCommandDefault{\textleaf}
                          {\tc@check@symbol2\textleaf}
\DeclareTextCommandDefault{\textlquill}
                          {\tc@check@symbol2\textlquill}
\DeclareTextCommandDefault{\textmarried}
                          {\tc@check@symbol2\textmarried}
\DeclareTextCommandDefault{\textmho}
                          {\tc@check@symbol2\textmho}
\DeclareTextCommandDefault{\textmusicalnote}
                          {\tc@check@symbol2\textmusicalnote}
\DeclareTextCommandDefault{\textnaira}
                          {\tc@check@symbol2\textnaira}
\DeclareTextCommandDefault{\textopenbullet}
                          {\tc@check@symbol2\textopenbullet}
\DeclareTextCommandDefault{\textpeso}
                          {\tc@check@symbol2\textpeso}
\DeclareTextCommandDefault{\textpilcrow}
                          {\tc@check@symbol2\textpilcrow}
\DeclareTextCommandDefault{\textrecipe}
                          {\tc@check@symbol2\textrecipe}
\DeclareTextCommandDefault{\textreferencemark}
                          {\tc@check@symbol2\textreferencemark}
\DeclareTextCommandDefault{\textrquill}
                          {\tc@check@symbol2\textrquill}
\DeclareTextCommandDefault{\textservicemark}
                          {\tc@check@symbol2\textservicemark}
\DeclareTextCommandDefault{\textsurd}
                          {\tc@check@symbol2\textsurd}
\DeclareTextCommandDefault{\textpertenthousand}
                          {\tc@check@symbol2\textpertenthousand}
\UndeclareTextCommand{\textpertenthousand}{T1}
\DeclareTextCommandDefault{\textlangle}
                          {\tc@check@symbol3\textlangle}
\DeclareTextCommandDefault{\textrangle}
                          {\tc@check@symbol3\textrangle}
\DeclareTextCommandDefault{\textcolonmonetary}
                          {\tc@check@symbol4\textcolonmonetary}
\DeclareTextCommandDefault{\textdong}
                          {\tc@check@symbol4\textdong}
\DeclareTextCommandDefault{\textdownarrow}
                          {\tc@check@symbol4\textdownarrow}
\DeclareTextCommandDefault{\textleftarrow}
                          {\tc@check@symbol4\textleftarrow}
\DeclareTextCommandDefault{\textlira}
                          {\tc@check@symbol4\textlira}
\DeclareTextCommandDefault{\textrightarrow}
                          {\tc@check@symbol4\textrightarrow}
\DeclareTextCommandDefault{\textuparrow}
                          {\tc@check@symbol4\textuparrow}
\DeclareTextCommandDefault{\textwon}
                          {\tc@check@symbol4\textwon}
\DeclareTextCommandDefault{\textestimated}
                          {\tc@check@symbol5\textestimated}
\DeclareTextCommandDefault{\textnumero}
                          {\tc@check@symbol5\textnumero}
\DeclareTextCommandDefault{\textflorin}
                          {\tc@check@symbol6\textflorin}
\DeclareTextCommandDefault{\textcurrency}
                          {\tc@check@symbol6\textcurrency}
\DeclareTextCommandDefault{\textfractionsolidus}
                          {\tc@check@symbol7\textfractionsolidus}
\DeclareTextCommandDefault{\textohm}
                          {\tc@check@symbol7\textohm}
\DeclareTextCommandDefault{\textmu}
                          {\tc@check@symbol7\textmu}
\DeclareTextCommandDefault{\textminus}
                          {\tc@check@symbol7\textminus}
\DeclareTextCommandDefault{\textblank}
                          {\tc@check@symbol{8}\textblank}
\DeclareTextCommandDefault{\textinterrobangdown}
                          {\tc@check@symbol{8}\textinterrobangdown}
\DeclareTextCommandDefault{\textinterrobang}
                          {\tc@check@symbol{8}\textinterrobang}
\DeclareTextCommandDefault{\texteuro}
  {\CheckEncodingSubset\UseTextSymbol{TS1}\tc@fake@euro{8}\texteuro}
\DeclareTextCommandDefault{\textcelsius}
                          {\tc@check@symbol{9}\textcelsius}
\DeclareTextCommandDefault{\textonesuperior}
                          {\tc@check@symbol{9}\textonesuperior}
\DeclareTextCommandDefault{\textthreequartersemdash}
                          {\tc@check@symbol{9}\textthreequartersemdash}
\DeclareTextCommandDefault{\textthreesuperior}
                          {\tc@check@symbol{9}\textthreesuperior}
\DeclareTextCommandDefault{\texttwelveudash}
                          {\tc@check@symbol{9}\texttwelveudash}
\DeclareTextCommandDefault{\texttwosuperior}
                          {\tc@check@symbol{9}\texttwosuperior}
\DeclareTextCommandDefault{\textbardbl}
                          {\tc@check@symbol{9}\textbardbl}

\ifx \Umathcode\@undefined  \else
\DeclareTextCommand{\textzerooldstyle} \UnicodeEncodingName{\oldstylenums{0}}
\DeclareTextCommand{\textoneoldstyle}  \UnicodeEncodingName{\oldstylenums{1}}
\DeclareTextCommand{\texttwooldstyle}  \UnicodeEncodingName{\oldstylenums{2}}
\DeclareTextCommand{\textthreeoldstyle}\UnicodeEncodingName{\oldstylenums{3}}
\DeclareTextCommand{\textfouroldstyle} \UnicodeEncodingName{\oldstylenums{4}}
\DeclareTextCommand{\textfiveoldstyle} \UnicodeEncodingName{\oldstylenums{5}}
\DeclareTextCommand{\textsixoldstyle}  \UnicodeEncodingName{\oldstylenums{6}}
\DeclareTextCommand{\textsevenoldstyle}\UnicodeEncodingName{\oldstylenums{7}}
\DeclareTextCommand{\texteightoldstyle}\UnicodeEncodingName{\oldstylenums{8}}
\DeclareTextCommand{\textnineoldstyle} \UnicodeEncodingName{\oldstylenums{9}}
\DeclareTextSymbol{\textpilcrow}        \UnicodeEncodingName{"00B6}
\DeclareTextSymbol{\textborn}           \UnicodeEncodingName{"002A}
\DeclareTextSymbol{\textdied}           \UnicodeEncodingName{"2020}
\DeclareTextSymbol{\textlbrackdbl}      \UnicodeEncodingName{"27E6}
\DeclareTextSymbol{\textrbrackdbl}      \UnicodeEncodingName{"27E7}
\DeclareTextSymbol{\textguarani}        \UnicodeEncodingName{"20B2}
\DeclareTextSymbol{\textdollaroldstyle}{TS1}{138}
\DeclareTextSymbol{\textcentoldstyle}  {TS1}{139}
\fi               % --- END of Unicode engines specials
\DeclareEncodingSubset{TS1}{?}{9}
\DeclareEncodingSubset{TS1}{ccr}     {0}
\DeclareEncodingSubset{TS1}{cmbr}    {0}
\DeclareEncodingSubset{TS1}{cmtl}    {0}
\DeclareEncodingSubset{TS1}{pxr}     {0}
\DeclareEncodingSubset{TS1}{pxss}    {0}
\DeclareEncodingSubset{TS1}{pxtt}    {0}
\DeclareEncodingSubset{TS1}{qag}     {0}
\DeclareEncodingSubset{TS1}{qbk}     {0}
\DeclareEncodingSubset{TS1}{qcr}     {0}
\DeclareEncodingSubset{TS1}{qcs}     {0}
\DeclareEncodingSubset{TS1}{qhvc}    {0}
\DeclareEncodingSubset{TS1}{qhv}     {0}
\DeclareEncodingSubset{TS1}{qpl}     {0}
\DeclareEncodingSubset{TS1}{qtm}     {0}
\DeclareEncodingSubset{TS1}{qzc}     {0}
\DeclareEncodingSubset{TS1}{txr}     {0}
\DeclareEncodingSubset{TS1}{txss}    {0}
\DeclareEncodingSubset{TS1}{txtt}    {0}
\DeclareEncodingSubset{TS1}{lmr}     {1}
\DeclareEncodingSubset{TS1}{lmdh}    {1}
\DeclareEncodingSubset{TS1}{lmss}    {1}
\DeclareEncodingSubset{TS1}{lmssq}   {1}
\DeclareEncodingSubset{TS1}{lmvtt}   {1}
\DeclareEncodingSubset{TS1}{lmtt}    {1} % missing TM, SM and pertenthousand
\DeclareEncodingSubset{TS1}{ptmx}    {2}
\DeclareEncodingSubset{TS1}{ptmj}    {2}
\DeclareEncodingSubset{TS1}{ul8}     {2}
\DeclareEncodingSubset{TS1}{bch} {5} % tofu for blank, ohm
\DeclareEncodingSubset{TS1}{futj}{5} % tofu for blank, interrobang/down, ohm
\DeclareEncodingSubset{TS1}{futs}{5} % tofu for blank, ohm
\DeclareEncodingSubset{TS1}{futx}{5} % probably (currently broken distrib)
\DeclareEncodingSubset{TS1}{pag} {5} % tofu for blank, interrobang/down, ohm
\DeclareEncodingSubset{TS1}{pbk} {5} % tofu for blank, interrobang/down, ohm
\DeclareEncodingSubset{TS1}{pcr} {5} % tofu for blank, interrobang/down, ohm
\DeclareEncodingSubset{TS1}{phv} {5} % tofu for blank, interrobang/down, ohm
\DeclareEncodingSubset{TS1}{pnc} {5} % tofu for blank, interrobang/down, ohm
\DeclareEncodingSubset{TS1}{pplj}{5} % tofu for blank
\DeclareEncodingSubset{TS1}{pplx}{5} % tofu for blank
\DeclareEncodingSubset{TS1}{ppl} {5} % tofu for blank interrobang/down
\DeclareEncodingSubset{TS1}{ptm} {5} % tofu for blank, interrobang/down, ohm
\DeclareEncodingSubset{TS1}{pzc} {5} % tofu for blank, interrobang/down, ohm
\DeclareEncodingSubset{TS1}{ul9} {5} % tofu for blank, interrobang/down, ohm
\DeclareEncodingSubset{TS1}{dayroms}{6} % tofu for blank, interrobang/down, ohm
\DeclareEncodingSubset{TS1}{dayrom} {6} % tofu for blank, interrobang/down, ohm
\DeclareEncodingSubset{TS1}{augie}{8} % really only missing euro
\DeclareEncodingSubset{TS1}{put}  {8}
\DeclareEncodingSubset{TS1}{uag}  {8} % probably (currently broken distrib)
\DeclareEncodingSubset{TS1}{ugq}  {8}
\DeclareEncodingSubset{TS1}{zi4}     {9}
\DeclareEncodingSubset{TS1}{hls}     {5}
\DeclareEncodingSubset{TS1}{hlst}    {5}
\DeclareEncodingSubset{TS1}{hlct}    {5}
\DeclareEncodingSubset{TS1}{hlh}     {5}
\DeclareEncodingSubset{TS1}{hlx}     {8}
\DeclareEncodingSubset{TS1}{hlce}    {8}
\DeclareEncodingSubset{TS1}{hlcn}    {8}
\DeclareEncodingSubset{TS1}{hlcw}    {8}
\DeclareEncodingSubset{TS1}{hlcf}    {8}
\DeclareEncodingSubset{TS1}{lato-*}       {0}  % with a bunch of tofu inside
\DeclareEncodingSubset{TS1}{opensans-*}   {0}  % with a bunch of tofu inside
\DeclareEncodingSubset{TS1}{cantarell-*}  {0}  % with a bunch of tofu inside
\DeclareEncodingSubset{TS1}{tli}          {1}  % with lots of tofu inside
\DeclareEncodingSubset{TS1}{fbb-*}        {2}  % missing centoldstyle
\DeclareEncodingSubset{TS1}{Alegreya-*}               {2}
\DeclareEncodingSubset{TS1}{AlegreyaSans-*}           {2}
\DeclareEncodingSubset{TS1}{BaskervilleF-*}           {2}
\DeclareEncodingSubset{TS1}{DejaVuSans-TLF}           {2}
\DeclareEncodingSubset{TS1}{DejaVuSansCondensed-TLF}  {2}
\DeclareEncodingSubset{TS1}{DejaVuSansMono-TLF}       {2}
\DeclareEncodingSubset{TS1}{EBGaramond-*}             {2}
\DeclareEncodingSubset{TS1}{Merriwthr-OsF}            {2}
\DeclareEncodingSubset{TS1}{MerriwthrSans-OsF}        {2}
\DeclareEncodingSubset{TS1}{Montserrat-*}             {2}
\DeclareEncodingSubset{TS1}{MontserratAlternates-*}   {2}
\DeclareEncodingSubset{TS1}{NotoSansMono-TLF}         {2}
\DeclareEncodingSubset{TS1}{NotoSansMono-TOsF}        {2}
\DeclareEncodingSubset{TS1}{Tempora-TLF}              {2}
\DeclareEncodingSubset{TS1}{Tempora-TOsF}             {2}
\DeclareEncodingSubset{TS1}{XCharter-TLF}             {2}
\DeclareEncodingSubset{TS1}{XCharter-TOsF}            {2}
\DeclareEncodingSubset{TS1}{erewhon-*}                {2}
\DeclareEncodingSubset{TS1}{Arimo-TLF}                {3}
\DeclareEncodingSubset{TS1}{Crlt-*}                   {3}
\DeclareEncodingSubset{TS1}{IBMPlexMono-TLF}          {3}
\DeclareEncodingSubset{TS1}{IBMPlexSans-TLF}          {3}
\DeclareEncodingSubset{TS1}{IBMPlexSerif-TLF}         {3}
\DeclareEncodingSubset{TS1}{SourceCodePro-TLF}        {3}
\DeclareEncodingSubset{TS1}{SourceCodePro-TOsF}       {3}
\DeclareEncodingSubset{TS1}{SourceSansPro-*}          {3}
\DeclareEncodingSubset{TS1}{SourceSerifPro-*}         {3}
\DeclareEncodingSubset{TS1}{Tinos-TLF}                {3}
\DeclareEncodingSubset{TS1}{AccanthisADFStdNoThree-LF}{4}
\DeclareEncodingSubset{TS1}{Cabin-TLF}                {4}
\DeclareEncodingSubset{TS1}{Caladea-TLF}              {4}
\DeclareEncodingSubset{TS1}{Chivo-*}                  {4}
\DeclareEncodingSubset{TS1}{ClearSans-TLF}            {4}
\DeclareEncodingSubset{TS1}{Coelacanth-LF}            {4}
\DeclareEncodingSubset{TS1}{CrimsonPro-*}             {4}
\DeclareEncodingSubset{TS1}{FiraMono-TLF}             {4}
\DeclareEncodingSubset{TS1}{FiraMono-TOsF}            {4}
\DeclareEncodingSubset{TS1}{FiraSans-*}               {4}
\DeclareEncodingSubset{TS1}{Go-TLF}                   {4}
\DeclareEncodingSubset{TS1}{GoMono-TLF}               {4}
\DeclareEncodingSubset{TS1}{InriaSans-*}              {4}
\DeclareEncodingSubset{TS1}{InriaSerif-*}             {4}
\DeclareEncodingSubset{TS1}{LibertinusSans-*}         {4}
\DeclareEncodingSubset{TS1}{LibertinusSerif-*}        {4}
\DeclareEncodingSubset{TS1}{LibreBodoni-TLF}          {4}
\DeclareEncodingSubset{TS1}{LibreFranklin-TLF}        {4}
\DeclareEncodingSubset{TS1}{LinguisticsPro-LF}        {4}
\DeclareEncodingSubset{TS1}{LinguisticsPro-OsF}       {4}
\DeclareEncodingSubset{TS1}{LinuxBiolinumT-*}         {4}
\DeclareEncodingSubset{TS1}{LinuxLibertineT-*}        {4}
\DeclareEncodingSubset{TS1}{MintSpirit-*}             {4}
\DeclareEncodingSubset{TS1}{MintSpiritNoTwo-*}        {4}
\DeclareEncodingSubset{TS1}{PTMono-TLF}               {4}
\DeclareEncodingSubset{TS1}{PTSans-TLF}               {4}
\DeclareEncodingSubset{TS1}{PTSansCaption-TLF}        {4}
\DeclareEncodingSubset{TS1}{PTSansNarrow-TLF}         {4}
\DeclareEncodingSubset{TS1}{PTSerif-TLF}              {4}
\DeclareEncodingSubset{TS1}{PTSerifCaption-TLF}       {4}
\DeclareEncodingSubset{TS1}{Raleway-TLF}              {4}
\DeclareEncodingSubset{TS1}{Raleway-TOsF}             {4}
\DeclareEncodingSubset{TS1}{Roboto-*}                 {4}
\DeclareEncodingSubset{TS1}{RobotoMono-TLF}           {4}
\DeclareEncodingSubset{TS1}{RobotoSlab-TLF}           {4}
\DeclareEncodingSubset{TS1}{Rosario-*}                {4}
\DeclareEncodingSubset{TS1}{SticksTooText-*}          {4}
\DeclareEncodingSubset{TS1}{UniversalisADFStd-LF}     {4}
\DeclareEncodingSubset{TS1}{Almndr-OsF}               {5}
\DeclareEncodingSubset{TS1}{Baskervaldx-*}            {5}
\DeclareEncodingSubset{TS1}{Bttr-TLF}                 {5}
\DeclareEncodingSubset{TS1}{Cinzel-LF}                {5}
\DeclareEncodingSubset{TS1}{CinzelDecorative-LF}      {5}
\DeclareEncodingSubset{TS1}{Cochineal-*}              {5}
\DeclareEncodingSubset{TS1}{DejaVuSerif-TLF}          {5}
\DeclareEncodingSubset{TS1}{DejaVuSerifCondensed-TLF} {5}
\DeclareEncodingSubset{TS1}{GilliusADF-LF}            {5}
\DeclareEncodingSubset{TS1}{GilliusADFCond-LF}        {5}
\DeclareEncodingSubset{TS1}{GilliusADFNoTwo-LF}       {5}
\DeclareEncodingSubset{TS1}{GilliusADFNoTwoCond-LF}   {5}
\DeclareEncodingSubset{TS1}{OldStandard-TLF}          {5}
\DeclareEncodingSubset{TS1}{PlyfrDisplay-TLF}         {5}
\DeclareEncodingSubset{TS1}{PlyfrDisplay-TOsF}        {5}
\DeclareEncodingSubset{TS1}{TheanoDidot-TLF}          {5}
\DeclareEncodingSubset{TS1}{TheanoDidot-TOsF}         {5}
\DeclareEncodingSubset{TS1}{TheanoModern-TLF}         {5}
\DeclareEncodingSubset{TS1}{TheanoModern-TOsF}        {5}
\DeclareEncodingSubset{TS1}{TheanoOldStyle-TLF}       {5}
\DeclareEncodingSubset{TS1}{TheanoOldStyle-TOsF}      {5}
\DeclareEncodingSubset{TS1}{charssil-TLF}             {5}
\DeclareEncodingSubset{TS1}{Crimson-TLF}              {6}
\DeclareEncodingSubset{TS1}{LibertinusSerifDisplay-LF}{6}
\DeclareEncodingSubset{TS1}{LinuxLibertineDisplayT-*} {6}
\DeclareEncodingSubset{TS1}{LinuxLibertineMonoT-LF}   {6}
\DeclareEncodingSubset{TS1}{LinuxLibertineMonoT-TLF}  {6}
\DeclareEncodingSubset{TS1}{Ovrlck-LF}                {6}
\DeclareEncodingSubset{TS1}{ComicNeue-TLF}            {7}
\DeclareEncodingSubset{TS1}{ComicNeueAngular-TLF}     {7}
\DeclareEncodingSubset{TS1}{CormorantGaramond-*}      {7}
\DeclareEncodingSubset{TS1}{Heuristica-TLF}           {7}
\DeclareEncodingSubset{TS1}{Heuristica-TOsF}          {7}
\DeclareEncodingSubset{TS1}{IMFELLEnglish-TLF}        {7}
\DeclareEncodingSubset{TS1}{LibreBskrvl-TLF}          {7}
\DeclareEncodingSubset{TS1}{LibreCsln-*}              {7}
\DeclareEncodingSubset{TS1}{Lbstr-LF}                 {7}
\DeclareEncodingSubset{TS1}{Mrcls-LF}                 {7}
\DeclareEncodingSubset{TS1}{NotoSans-*}               {7}
\DeclareEncodingSubset{TS1}{NotoSerif-*}              {7}
\DeclareEncodingSubset{TS1}{Quattro-LF}               {7}
\DeclareEncodingSubset{TS1}{QuattroSans-LF}           {7}
\DeclareEncodingSubset{TS1}{Frm-LF}                   {7}  % the superiors are missing
\DeclareEncodingSubset{TS1}{LibertinusMono-TLF}       {8}
\DeclareEncodingSubset{TS1}{AlgolRevived-TLF}         {9}
\def\UseLegacyTextSymbols{%
  \DeclareTextSymbolDefault{\textasteriskcentered}{OMS}%
  \DeclareTextSymbolDefault{\textbardbl}{OMS}%
  \DeclareTextSymbolDefault{\textbullet}{OMS}%
  \DeclareTextSymbolDefault{\textdaggerdbl}{OMS}%
  \DeclareTextSymbolDefault{\textdagger}{OMS}%
  \DeclareTextSymbolDefault{\textparagraph}{OMS}%
  \DeclareTextSymbolDefault{\textperiodcentered}{OMS}%
  \DeclareTextSymbolDefault{\textsection}{OMS}%
  \UndeclareTextCommand{\textsection}{T1}%
  \expandafter\let\csname oldstylenums \expandafter\endcsname
                  \csname legacyoldstylenums \endcsname
}

\DeclareTextSymbol{\textlegacyasteriskcentered}{OMS}{3}   % "03
\DeclareTextSymbol{\textlegacybardbl}{OMS}{107}           % "6B
\DeclareTextSymbol{\textlegacybullet}{OMS}{15}            % "0F
\DeclareTextSymbol{\textlegacydaggerdbl}{OMS}{122}        % "7A
\DeclareTextSymbol{\textlegacydagger}{OMS}{121}           % "79
\DeclareTextSymbol{\textlegacyparagraph}{OMS}{123}        % "7B
\DeclareTextSymbol{\textlegacyperiodcentered}{OMS}{1}     % "01
\DeclareTextSymbol{\textlegacysection}{OMS}{120}          % "78
\DeclareTextSymbolDefault{\textlegacyasteriskcentered}{OMS}
\DeclareTextSymbolDefault{\textlegacybardbl}{OMS}
\DeclareTextSymbolDefault{\textlegacybullet}{OMS}
\DeclareTextSymbolDefault{\textlegacydaggerdbl}{OMS}
\DeclareTextSymbolDefault{\textlegacydagger}{OMS}
\DeclareTextSymbolDefault{\textlegacyparagraph}{OMS}
\DeclareTextSymbolDefault{\textlegacyperiodcentered}{OMS}
\DeclareTextSymbolDefault{\textlegacysection}{OMS}


%%% From File: ltpageno.dtx
\message{page nos.,}
\countdef\c@page=0 \c@page=1
\def\cl@page{}
\def\pagenumbering#1{%
  \global\c@page \@ne \gdef\thepage{\csname @#1\endcsname
   \c@page}}
%%% From File: ltxref.dtx
\message{x-ref,}

\def\G@refundefinedtrue{%
  \gdef\@refundefined{%
    \@latex@warning@no@line{There were undefined references}}}
\let\@refundefined\relax
\def\@setref#1#2#3{%
  \ifx#1\relax
   \protect\G@refundefinedtrue
   \nfss@text{\reset@font\bfseries ??}%
   \@latex@warning{Reference `#3' on page \thepage \space
             undefined}%
  \else
   \expandafter#2#1\@empty\@empty\@empty\null
  \fi}
\long\def\@firstoffive#1#2#3#4#5{#1}
\long\def\@secondoffive#1#2#3#4#5{#2}
\def\@kernel@sref#1{\expandafter\@setref\csname r@#1\endcsname\@firstoffive{#1}}
\def\@kernel@spageref#1{\expandafter\@setref\csname r@#1\endcsname
                 \@secondoffive{#1}}
\let\@kernel@ref\@kernel@sref
\let\@kernel@pageref\@kernel@spageref
\NewDocumentCommand\ref{s}
   {\IfBooleanTF{#1}{\@kernel@sref}{\@kernel@ref}}
\NewDocumentCommand\pageref{s}
   {\IfBooleanTF{#1}{\@kernel@spageref}{\@kernel@pageref}}
\def\@kernel@pageref@exp#1{\csname cs_if_exist:cTF\endcsname
   {r@#1}{\csname tl_item:cn\endcsname{r@#1}{2}}{0}}
\def\@kernel@ref@exp#1{\csname cs_if_exist:cTF\endcsname
   {r@#1}{\csname tl_item:cn\endcsname{r@#1}{1}}{0}}
\def\@newl@bel#1#2#3{{%
  \@ifundefined{#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}}}
\def\newlabel{\@newl@bel r}
\@onlypreamble\@newl@bel
\let \@multiplelabels \relax
\providecommand\@currentlabelname{}
\providecommand\@currentHref{}
\providecommand\@kernel@reserved@label@data{}
\NewHookWithArguments{label}{1}
\def\label#1{\@bsphack
  \begingroup
  \UseHookWithArguments{label}{1}{#1}%
  \protected@write\@auxout{}%
         {\string\newlabel{#1}{{\@currentlabel}{\thepage}%
          {\@currentlabelname}{\@currentHref}{\@kernel@reserved@label@data}}}%
  \endgroup
  \@esphack}
\def\@currentcounter{}
\NewSocket{refstepcounter}{1}
\NewSocket{refstepcounter/target}{1}
\NewSocketPlug{refstepcounter/target}{kernel}
 {\xdef\@currentHref {#1.\csname theH#1\endcsname}}%
\AssignSocketPlug{refstepcounter/target}{kernel}
\def\refstepcounter#1{%
  \UseSocket{refstepcounter}{%
    \stepcounter{#1}%
    \edef\@currentcounter{#1}%
    \protected@edef\@currentlabel
       {\csname p@#1\expandafter\endcsname\csname the#1\endcsname}%
     \UseSocket{refstepcounter/target}{#1}%
     \UseTaggingSocket{recordtarget}%
   }%
}
\def\@kernel@refstepcounter#1{%
  \UseSocket{refstepcounter}{%
    \stepcounter{#1}%
    \edef\@currentcounter{#1}%
    \protected@edef\@currentlabel
       {\csname p@#1\expandafter\endcsname\csname the#1\endcsname}}}%
\def\labelformat#1{\expandafter\def\csname p@#1\endcsname##1}
\def\@kernel@Ref#1{\protected@edef\@tempa{\@kernel@ref{#1}}%
       \expandafter\MakeUppercase\@tempa}
\def\@kernel@sRef#1{\protected@edef\@tempa{\@kernel@sref{#1}}%
       \expandafter\MakeUppercase\@tempa}
\NewDocumentCommand\Ref{s}
   {\IfBooleanTF{#1}{\@kernel@sRef}{\@kernel@Ref}}
\def\@currentlabel{}
%%% From File: ltproperties.dtx
\ExplSyntaxOn
\cs_new_protected:Npn \property_new:nnnn #1#2#3#4
  {
    \cs_if_free:cTF { __property_code_ #1 : }
      {
        \exp_args:Nx \__property_gset:nnnn { \tl_to_str:n {#1} }
         {#2} {#3} {#4}
      }
      {
        \msg_error:nn { property }{ exists }{#1}
      }
  }
\cs_new_protected:Npn \property_gset:nnnn #1#2#3#4
  {
    \__property_gset:ennn { \tl_to_str:n {#1} }
      {#2} {#3} {#4}
  }
\cs_new_protected:Npn \__property_gset:nnnn #1#2#3#4
  {
    \cs_gset:cpn { __property_code_ #1 : } {#4}
    \tl_gclear_new:c { g__property_default_ #1 _tl }
    \tl_gset:cn { g__property_default_ #1 _tl } {#3}
    \bool_if_exist:cF { g__property_shipout_ #1 _tl }
      { \bool_new:c { g__property_shipout_ #1 _tl } }
    \str_case:nnF {#2}
      {
        { now } { { \bool_gset_false:c { g__property_shipout_ #1 _tl } } }
        { shipout }
          { \bool_gset_true:c { g__property_shipout_ #1 _tl } }
      }
      { \msg_error:nnnn { property } { unknown-setpoint } {#1} {#2} }
  }
\cs_generate_variant:Nn \__property_gset:nnnn {ennn}
\cs_new_protected:Npn \NewProperty #1#2#3#4
  {
    \protected@edef\reserved@a{#1}
    \exp_args:No \property_new:nnnn {\reserved@a} {#2}{#3}{#4}
  }
\cs_new_protected:Npn \SetProperty #1#2#3#4
  {
    \protected@edef\reserved@a{#1}
    \exp_args:No \property_gset:nnnn {\reserved@a} {#2}{#3}{#4}
  }
\cs_new_protected:Npn \property_record:nN #1#2
  { \property_record:nV {#1} #2 }
\cs_new_protected:Npn \property_record:nn #1#2
  { \__property_record:en { \tl_to_str:n {#1} } {#2} }
\cs_generate_variant:Nn \property_record:nn { nV , ee, oo }
\cs_new_protected:Npn \__property_record:nn #1#2
  {
    \protected@write \@auxout {}
      {
        \token_to_str:N \new@label@record
          {#1}
          { \clist_map_function:nN {#2} \__property_record_value:n }
      }
  }
\cs_generate_variant:Nn \__property_record:nn { e }
\cs_new:Npn \__property_record_value:n #1
  { \__property_record_value_aux:e { \tl_to_str:n {#1} } }
\cs_new:Npn \__property_record_value_aux:n #1
  {
    \cs_if_exist:cTF { __property_code_ #1 : }
      {
        {#1}
        {
          \bool_if:cTF { g__property_shipout_ #1 _tl }
            { \exp_not:c }
            { \use:c }
              { __property_code_ #1 : }
        }
      }
      { \msg_expandable_error:nnn { property } { not-declared } {#1} }
  }
\cs_generate_variant:Nn \__property_record_value_aux:n { e }
\NewDocumentCommand\RecordProperties { m m }
  {
    \@bsphack
    \protected@edef\reserved@a{#1}
    \protected@edef\reserved@b{#2}
    \property_record:oo {\reserved@a}{\reserved@b}
    \@esphack
  }
\flag_new:n { l__property_ref_flag }
\cs_new:Npn \property_ref:nn #1#2
  {
    \__property_ref:een
      { \tl_to_str:n {#1} }
      { \tl_to_str:n {#2} }
      { \tl_use:c { g__property_default_ #2 _tl } }
  }
\cs_generate_variant:Nn \property_ref:nn {ee}
\cs_new:Npn \property_ref:nnn #1#2#3
  {
    \__property_ref:een
      { \tl_to_str:n {#1} }
      { \tl_to_str:n {#2} }
      {#3}
  }
\cs_new:Npn \__property_ref:nnn #1#2#3
  {
    \tl_if_exist:cTF { g__property_label_ #1 _ #2 _tl }
      { \tl_use:c { g__property_label_ #1 _ #2 _tl } }
      {
        \flag_if_raised:nF
          { l__property_ref_flag } { \flag_raise:n { l__property_ref_flag } }
        \tl_if_exist:cTF { g__property_default_ #2 _tl }
          { #3 }
          { \msg_expandable_error:nnn { property } { not-declared } {#2} }
      }
  }
\cs_generate_variant:Nn \__property_ref:nnn { ee }
\cs_generate_variant:Nn \property_ref:nnn {een}
\NewExpandableDocumentCommand \RefProperty { o m m }
  {
    \IfNoValueTF {#1}
      {
        \property_ref:ee {#2}{#3}
      }
      {
        \property_ref:een {#2}{#3}{#1}
      }
  }
\cs_new_protected:Npn \new@label@record #1#2
  {
    \tl_if_exist:cTF { r@#1 }
      {
        \gdef \@multiplelabels
          { \@latex@warning@no@line { There~were~multiply-defined~labels } }
        \@latex@warning@no@line { Label~`#1'~multiply~defined }
      }
      {
        \tl_new:c { r@#1 }
        \tl_gset:cn { r@#1 }{#2}
      }
    \__property_data:nnn {#1} #2 { \q_recursion_tail } { ? } \q_recursion_stop
  }
\cs_new_protected:Npn \__property_data:nnn #1#2#3
  {
    \quark_if_recursion_tail_stop:n {#2}
    \tl_gclear_new:c { g__property_label_ \tl_to_str:n {#1} _ \tl_to_str:n {#2} _tl }
    \tl_gset:cn { g__property_label_ \tl_to_str:n {#1} _ \tl_to_str:n {#2} _tl } {#3}
    \__property_data:nnn {#1}
  }
\cs_new_protected:Npn \@kernel@new@label@record@testdef #1 #2
  {
    \tl_if_eq:cnF { r@#1 } {#2}
      { \@tempswatrue }
  }
\prg_new_conditional:Npnn \property_if_exist:n #1 { p , T , F,  TF }
  % #1 property
  {
    \cs_if_exist:cTF { __property_code_ #1 : }
      {
        \prg_return_true:
      }
      {
        \prg_return_false:
      }
  }
\prg_generate_conditional_variant:Nnn \property_if_exist:n {e} {TF}
\cs_new_eq:NN \IfPropertyExistsTF \property_if_exist:eTF
\cs_new:Npn   \IfPropertyExistsT #1#2 {\property_if_exist:eTF {#1}{#2}{} }
\cs_new:Npn   \IfPropertyExistsF #1   {\property_if_exist:eTF {#1}{} }
\prg_new_conditional:Npnn \property_if_recorded:n #1 { p , T , F,  TF }
  % #1 label
  {
    \tl_if_exist:cTF { r@#1 }
      {
        \prg_return_true:
      }
      {
        \prg_return_false:
      }
  }
\prg_generate_conditional_variant:Nnn \property_if_recorded:n {e} {TF}
\cs_new_eq:NN \IfLabelExistsTF \property_if_recorded:eTF
\cs_new:Npn   \IfLabelExistsT #1#2 {\property_if_recorded:eTF {#1}{#2}{} }
\cs_new:Npn   \IfLabelExistsF #1   {\property_if_recorded:eTF {#1}{} }
\prg_new_conditional:Npnn \property_if_recorded:nn #1#2 { p , T , F,  TF }
  % #1 label #2 property
  {
    \tl_if_exist:cTF { g__property_label_ \tl_to_str:n {#1} _ \tl_to_str:n {#2} _tl }
      {
        \prg_return_true:
      }
      {
        \prg_return_false:
      }
  }
\prg_generate_conditional_variant:Nnn \property_if_recorded:nn {ee} {TF}
\cs_new_eq:NN \IfPropertyRecordedTF \property_if_recorded:eeTF
\cs_new:Npn \IfPropertyRecordedT #1#2#3 { \property_if_recorded:eeTF {#1}{#2}{#3}{} }
\cs_new:Npn \IfPropertyRecordedF #1#2#3 { \property_if_recorded:eeTF {#1}{#2}{}{#3} }
\cs_new_protected:Npn \property_ref_undefined_warn:
 {
   \flag_if_raised:nT { l__property_ref_flag }
    {
      \G@refundefinedtrue
    }
 }
\cs_new_protected:Npn \property_ref_undefined_warn:n #1 %#1 label
  {
   \property_if_recorded:nF {#1}
    {
       \G@refundefinedtrue
       \@latex@warning{Reference~`#1'~on~page~\thepage\space undefined}%
    }
  }
\cs_new_protected:Npn \property_ref_undefined_warn:nn #1#2 %#1 label, #2 property
 {
   \property_if_recorded:nTF {#1}
    {
      \property_if_recorded:nnF {#1}{#2}
        {
          \G@refundefinedtrue
          \@latex@warning
           { Property~`#2'~undefined~for~reference~`#1'~on~page~\thepage }
        }
    }
    {
       \G@refundefinedtrue
       \@latex@warning { Reference~`#1'~on~page~\thepage\space undefined }%
    }
 }
\cs_generate_variant:Nn \property_ref_undefined_warn:nn {ee}
\cs_set_eq:NN \RefUndefinedWarn \property_ref_undefined_warn:ee
\property_new:nnnn { abspage } { shipout }
  { 0 } { \int_use:N \g_shipout_readonly_int }
\property_new:nnnn  { page } { shipout } { 0 } { \thepage }
\property_new:nnnn  { pagenum } { shipout } { 0 } { \the \value { page } }
\property_new:nnnn  { label } { now } { ?? } { \@currentlabel }
\property_new:nnnn  { title } { now }
  { \exp_not:n { \textbf { ?? } } } { \@currentlabelname }
\property_new:nnnn  { target } { now } { } { \@currentHref }
\newcommand\@currentHpage{}
\property_new:nnnn  { pagetarget } { shipout } { } { \@currentHpage }

\property_new:nnnn  { counter } { now }  { } { \@currentcounter }
\property_new:nnnn  { xpos } { shipout } { 0} { \int_use:N \tex_lastxpos:D }
\property_new:nnnn  { ypos } { shipout } { 0} { \int_use:N \tex_lastypos:D }
\msg_new:nnnn { property } { exists }
    { Property~'#1'~ has~ already~ been~ declared. }
    { There~ already~ exists~ a~ property~ declaration~ with~ this~
      name.\\
      Please~ use~ a~ different~ name~ for~ your~ property.}

\msg_new:nnnn { property } { not-declared }
  { Property~'#1'~not~declared. }
  {
    LaTeX~has~been~asked~to~use~property~'#1',~but~this~
    name~has~not~been~declared.
  }
\msg_new:nnnn { property } { unknown-setpoint }
  { Unknown~keyword~'#2'~for~setting~property~'#1'. }
  {
    LaTeX~has~been~asked~to~set~the~property~'#1',~but~the~keyword~
    '#2'~is~not~one~of~the~two~known~values:~'now'~or~'shipout'.
  }
\ExplSyntaxOff
%%% From File: ltmiscen.dtx
\message{environments,}
\def\@currenvir{document}
\def\@ignorefalse{\global\let\if@ignore\iffalse}
\def\@ignoretrue {\global\let\if@ignore\iftrue}
\@ignorefalse
\let\ignorespacesafterend\@ignoretrue
\def\enddocument{%
   \@kernel@before@enddocument
   \UseOneTimeHook{enddocument}%
   \@kernel@after@enddocument
   \@checkend{document}%
   \clearpage
   \UseOneTimeHook{enddocument/afterlastpage}%
   \@kernel@after@enddocument@afterlastpage
   \begingroup
     \if@filesw
       \immediate\closeout\@mainaux
       \let\@setckpt\@gobbletwo
       \let\@newl@bel\@testdef
       \let\new@label@record\@kernel@new@label@record@testdef
       \@tempswafalse
       \makeatletter \@@input\jobname.aux
     \fi
     \UseOneTimeHook{enddocument/afteraux}%
     \UseOneTimeHook{enddocument/info}%
   \endgroup
   \UseOneTimeHook{enddocument/end}%
   \deadcycles\z@\@@end}
\NewHook{enddocument}
\NewHook{enddocument/afterlastpage}
\NewHook{enddocument/afteraux}
\NewHook{enddocument/info}
\NewHook{enddocument/end}
\AddToHook{enddocument/info}[kernel/filelist]{\@dofilelist}
\AddToHook{enddocument/info}[kernel/warnings]{\@enddocument@kernel@warnings}
\AddToHook{enddocument/info}[kernel/release]{%
   \let\show@release@info\wlog
   \show@release@info{ ***********}%
   \the\LaTeXReleaseInfo
   \show@release@info{ ***********}}

\DeclareHookRule{enddocument/info}{kernel/release}{before}{kernel/filelist}
\DeclareHookRule{enddocument/info}{kernel/filelist}{before}{kernel/warnings}
\def\@enddocument@kernel@warnings{%
   \ifdim \font@submax >\fontsubfuzz\relax
     \@font@warning{Size substitutions with differences\MessageBreak
                up to \font@submax\space have occurred.\@gobbletwo}%
   \fi
   \@defaultsubs
   \@refundefined
   \if@filesw
     \ifx \@multiplelabels \relax
       \if@tempswa
         \@latex@warning@no@line{Label(s) may have changed.
             Rerun to get cross-references right}%
       \fi
     \else
       \@multiplelabels
     \fi
     \ifx \@extra@page@added \relax
         \@latex@warning@no@line{Temporary extra page added at the end.
             Rerun to get it removed}%
     \fi
   \fi
}
\def\@kernel@before@enddocument{\par}
\def\@testdef #1#2#3{%
  \def\reserved@a{#3}\expandafter \ifx \csname #1@#2\endcsname
 \reserved@a  \else \@tempswatrue \fi}
\protected\def\protected@file@percent{}
\catcode`\^^A=9
\long\gdef\add@percent@to@temptokena
    #1\protected@file@percent#2\add@percent@to@temptokena
    {\expandafter\ifx\expandafter X\detokenize{#2}X\expandafter\dont@add@percent@to@temptokena\else
             \expandafter\do@add@percent@to@temptokena\fi{#1}}
\long\def\dont@add@percent@to@temptokena#1{%
  \@temptokena\expandafter{#1}}
\begingroup
\catcode`\%=12
\catcode`\^^A=14
\long\gdef\do@add@percent@to@temptokena#1{\@temptokena\expandafter{#1%^^A
  }}
\endgroup
\long\def\@writefile#1#2{%
  \@ifundefined{tf@#1}\relax
    {%
      \add@percent@to@temptokena
        \@empty#2\protected@file@percent
        \add@percent@to@temptokena
     \immediate\write\csname tf@#1\endcsname{\the\@temptokena}%
    }%
}
\def\stop{\clearpage\deadcycles\z@\let\par\@@par\@@end}
\everypar{\@nodocument} %% To get an error if text appears before the
\nullfont               %% \begin{document}
\protected\def\begin#1{%
  \UseHook{env/#1/before}%
  \@ifundefined{#1}%
    {\def\reserved@a{\@latex@error{Environment #1 undefined}\@eha}}%
    {\def\reserved@a{\def\@currenvir{#1}%
        \edef\@currenvline{\on@line}%
        \@execute@begin@hook{#1}%
        \csname #1\endcsname}}%
  \@ignorefalse
  \begingroup\@endpefalse\reserved@a}
\def\@execute@begin@hook #1{%
  \expandafter\ifx\csname #1\endcsname\document
    \endgroup
    \gdef\@execute@begin@hook##1{\UseHook{env/##1/begin}}%
    \@expl@@@initialize@all@@
  \fi
  \UseHook{env/#1/begin}%
}

\edef\end
  {\unexpanded{%
     \romannumeral
       \ifx\protect\@typeset@protect
       \expandafter       %1
         \expandafter        %2
       \expandafter       %1
           \expandafter         %3 expands the \csname inside \end<space>
       \expandafter       %1
         \expandafter        %2  expands \end<space>
       \expandafter       %1     expands the \else
           \z@
       \else
         \expandafter\z@\expandafter\protect
       \fi
   }%
   \expandafter\noexpand\csname end \endcsname
  }

\@namedef{end }#1{%
  \romannumeral
    \IfHookEmptyTF{env/#1/end}%
        {\expandafter\z@}%
        {\z@\UseHook{env/#1/end}}%
    \csname end#1\endcsname\@checkend{#1}%
    \endgroup
    \UseHook{env/#1/after}%
    \if@ignore\@ignorefalse\ignorespaces\fi
}
\def\@checkend#1{\def\reserved@a{#1}\ifx
      \reserved@a\@currenvir \else\@badend{#1}\fi}
\let\@currenvline\@empty
\newcommand\AtBeginEnvironment[2][.]    {\AddToHook{env/#2/begin}[#1]}
\newcommand\AtEndEnvironment[2][.]      {\AddToHook{env/#2/end}[#1]}
\newcommand\BeforeBeginEnvironment[2][.]{\AddToHook{env/#2/before}[#1]}
\newcommand\AfterEndEnvironment[2][.]   {\AddToHook{env/#2/after}[#1]}
\message{center,}
\protected\def\@centercr{\ifhmode \unskip\else \@nolnerr\fi
       \par\@ifstar{\nobreak\@xcentercr}\@xcentercr}
\def\@xcentercr{\addvspace{-\parskip}\@ifnextchar
    [\@icentercr\ignorespaces}
\def\@icentercr[#1]{\@vspace@calcify{#1}\ignorespaces}
\def\center{\trivlist \centering\item\relax}
\def\endcenter{\endtrivlist}
\DeclareRobustCommand\centering{%
  \let\\\@centercr
  \rightskip\@flushglue\leftskip\@flushglue
  \finalhyphendemerits=\z@
  \parindent\z@\parfillskip\z@skip}
\DeclareRobustCommand\raggedright{%
  \let\\\@centercr\@rightskip\@flushglue \rightskip\@rightskip
  \finalhyphendemerits=\z@
  \leftskip\z@skip
  \parindent\z@}
\DeclareRobustCommand\raggedleft{%
  \let\\\@centercr
  \rightskip\z@skip\leftskip\@flushglue
  \finalhyphendemerits=\z@
  \parindent\z@\parfillskip\z@skip}
\newskip\@rightskip \@rightskip \z@skip
\def\flushleft{\trivlist \raggedright\item\relax}
\def\endflushleft{\endtrivlist}
\def\flushright{\trivlist \raggedleft\item\relax}
\def\endflushright{\endtrivlist}
\message{verbatim,}
{\catcode`\ =\active%
\gdef\@vobeyspaces{\catcode`\ \active\let \@xobeysp\@vobeytabs}}
{\catcode`\^^I=\active
\gdef\@vobeytabs{\catcode`\^^I\active\let^^I\@xobeytab}%
\global\let^^I=\space
}
\begingroup \catcode `|=0 \catcode `[= 1
\catcode`]=2 \catcode `\{=12 \catcode `\}=12
\catcode`\\=12 |gdef|@xverbatim#1\end{verbatim}[#1|end[verbatim]]
|gdef|@sxverbatim#1\end{verbatim*}[#1|end[verbatim*]]
|endgroup
\def\@verbatim{\trivlist \item\relax
  \if@minipage\else\vskip\parskip\fi
  \leftskip\@totalleftmargin\rightskip\z@skip
  \parindent\z@\parfillskip\@flushglue\parskip\z@skip
  \@@par
  \language\l@nohyphenation
  \@tempswafalse
  \def\par{%
    \if@tempswa
      \leavevmode \null \@@par\penalty\interlinepenalty
    \else
      \@tempswatrue
      \ifhmode\@@par\penalty\interlinepenalty\fi
    \fi}%
  \let\do\@makeother \dospecials
  \obeylines \verbatim@font \@noligs
  \everypar \expandafter{\the\everypar \unpenalty}%
}
\def\verbatim{\@verbatim \frenchspacing\@vobeyspaces \@xverbatim}
\def\endverbatim{\if@newlist \leavevmode\fi\endtrivlist}
\def\verbatim@font{\normalfont\ttfamily}
\DeclareRobustCommand\asciispace{\char 32 }
\ifx\Umathcode\@undefined
  \let\verbvisiblespace\asciispace                                % Pdftex version
\else
  \DeclareRobustCommand\verbvisiblespace
           {\leavevmode{\usefont{OT1}{cmtt}{m}{n}\asciispace}}    % xetex/luatex version
\fi
\newbox\@verbvisiblespacebox
\@namedef{verbatim*}{\@verbatim
  \@setupverbvisiblespace
  \frenchspacing\@vobeyspaces\@sxverbatim}
\expandafter\let\csname endverbatim*\endcsname =\endverbatim
\def\@setupverbvisiblespace{%
  \ifx\verbvisiblespace\asciispace
    \let\@xobeysp\asciispace
  \else
    \setbox\z@\hbox{x}%
    \setbox\@verbvisiblespacebox\hbox to\wd\z@{\hss\verbvisiblespace\hss}%
    \def\@xobeysp{\leavevmode\copy\@verbvisiblespacebox}%
  \fi
  \@setupverbvisibletab
}
\def\@setupverbvisibletab{\let\@xobeytab\@xobeysp}
\def\@sverb#1{\if\noexpand#1 \expandafter\@sverb\else\@@sverb{#1}\fi}
\def\@@sverb#1{%
  \catcode`#1\active
  \lccode`\~`#1%
  \gdef\verb@balance@group{\verb@egroup
     \@latex@error{\noexpand\verb illegal in argument}\@ehc}%
  \aftergroup\verb@balance@group
  \lowercase{\let~\verb@egroup}%
  \ifnum0%
    \ifnum\catcode`\ =\active\else 1\fi
    \ifnum\catcode`\^^I=\active\else 1\fi
    =0 %
  \else  \@setupverbvisiblespace \@vobeyspaces \fi
}
\def\@makeother#1{\catcode`#112\relax}
\let\verb@balance@group\@empty
\def\verb@egroup{\global\let\verb@balance@group\@empty\egroup}
\begingroup
  \obeylines%
  \gdef\verb@eol@error{\obeylines%
    \def^^M{\verb@egroup\@latex@error{%
            \noexpand\verb ended by end of line}\@ehc}}%
\endgroup
\def\verb{\relax\ifmmode\hbox\else\leavevmode\null\fi
  \bgroup
    \verb@eol@error \let\do\@makeother \dospecials
    \verbatim@font\@noligs
    \language\l@nohyphenation
    \@ifstar\@sverb\@verb}
\def\@verb{\@vobeyspaces \frenchspacing \@sverb}
\def\verbatim@nolig@list{\do\`\do\<\do\>\do\,\do\'\do\-}
\def\do@noligs#1{%
  \catcode`#1\active
  \begingroup
     \lccode`\~`#1\relax
     \lowercase{\endgroup\def~{\leavevmode\kern\z@\char`#1}}}
\def\@noligs{\let\do\do@noligs \verbatim@nolig@list}
%%% From File: ltmath.dtx
\message{math definitions,}
\DeclareRobustCommand\log{\mathop{\operator@font log}\nolimits}
\DeclareRobustCommand\lg{\mathop{\operator@font lg}\nolimits}
\DeclareRobustCommand\ln{\mathop{\operator@font ln}\nolimits}
\DeclareRobustCommand\lim{\mathop{\operator@font lim}}
\DeclareRobustCommand\limsup{\mathop{\operator@font lim\,sup}}
\DeclareRobustCommand\liminf{\mathop{\operator@font lim\,inf}}
\DeclareRobustCommand\sin{\mathop{\operator@font sin}\nolimits}
\DeclareRobustCommand\arcsin{\mathop{\operator@font arcsin}\nolimits}
\DeclareRobustCommand\sinh{\mathop{\operator@font sinh}\nolimits}
\DeclareRobustCommand\cos{\mathop{\operator@font cos}\nolimits}
\DeclareRobustCommand\arccos{\mathop{\operator@font arccos}\nolimits}
\DeclareRobustCommand\cosh{\mathop{\operator@font cosh}\nolimits}
\DeclareRobustCommand\tan{\mathop{\operator@font tan}\nolimits}
\DeclareRobustCommand\arctan{\mathop{\operator@font arctan}\nolimits}
\DeclareRobustCommand\tanh{\mathop{\operator@font tanh}\nolimits}
\DeclareRobustCommand\cot{\mathop{\operator@font cot}\nolimits}
\DeclareRobustCommand\coth{\mathop{\operator@font coth}\nolimits}
\DeclareRobustCommand\sec{\mathop{\operator@font sec}\nolimits}
\DeclareRobustCommand\csc{\mathop{\operator@font csc}\nolimits}
\DeclareRobustCommand\max{\mathop{\operator@font max}}
\DeclareRobustCommand\min{\mathop{\operator@font min}}
\DeclareRobustCommand\sup{\mathop{\operator@font sup}}
\DeclareRobustCommand\inf{\mathop{\operator@font inf}}
\DeclareRobustCommand\arg{\mathop{\operator@font arg}\nolimits}
\DeclareRobustCommand\ker{\mathop{\operator@font ker}\nolimits}
\DeclareRobustCommand\dim{\mathop{\operator@font dim}\nolimits}
\DeclareRobustCommand\hom{\mathop{\operator@font hom}\nolimits}
\DeclareRobustCommand\det{\mathop{\operator@font det}}
\DeclareRobustCommand\exp{\mathop{\operator@font exp}\nolimits}
\DeclareRobustCommand\Pr{\mathop{\operator@font Pr}}
\DeclareRobustCommand\gcd{\mathop{\operator@font gcd}}
\DeclareRobustCommand\deg{\mathop{\operator@font deg}\nolimits}
\DeclareRobustCommand\bmod{%
  \nonscript\mskip-\medmuskip\mkern5mu%
  \mathbin{\operator@font mod}\penalty900\mkern5mu%
  \nonscript\mskip-\medmuskip}
\DeclareRobustCommand\pmod[1]{%
  \allowbreak\mkern18mu({\operator@font mod}\,\,#1)}
\DeclareRobustCommand\bigl{\mathopen\big}
\DeclareRobustCommand\bigm{\mathrel\big}
\DeclareRobustCommand\bigr{\mathclose\big}
\DeclareRobustCommand\Bigl{\mathopen\Big}
\DeclareRobustCommand\Bigm{\mathrel\Big}
\DeclareRobustCommand\Bigr{\mathclose\Big}
\DeclareRobustCommand\biggl{\mathopen\bigg}
\DeclareRobustCommand\biggm{\mathrel\bigg}
\DeclareRobustCommand\biggr{\mathclose\bigg}
\DeclareRobustCommand\Biggl{\mathopen\Bigg}
\DeclareRobustCommand\Biggm{\mathrel\Bigg}
\DeclareRobustCommand\Biggr{\mathclose\Bigg}
\newdimen\jot
\jot=3pt
\newcount\interdisplaylinepenalty
\interdisplaylinepenalty=100
\def\choose{\atopwithdelims()}
\def\brack{\atopwithdelims[]}
\def\brace{\atopwithdelims\{\}}
\def\mathpalette#1#2{%
  \mathchoice
    {#1\displaystyle{#2}}%
    {#1\textstyle{#2}}%
    {#1\scriptstyle{#2}}%
    {#1\scriptscriptstyle{#2}}}
\newbox\rootbox
\def\root#1\of{%
  \setbox\rootbox\hbox{$\m@th\scriptscriptstyle{#1}$}%
  \mathpalette\r@@t}
\def\r@@t#1#2{%
  \setbox\z@\hbox{$\m@th#1\sqrtsign{#2}$}%
  \dimen@\ht\z@ \advance\dimen@-\dp\z@
  \mkern5mu\raise.6\dimen@\copy\rootbox
  \mkern-10mu\box\z@}

\newif\ifv@
\newif\ifh@
\DeclareRobustCommand\vphantom{\v@true\h@false\ph@nt}
\DeclareRobustCommand\hphantom{\v@false\h@true\ph@nt}
\DeclareRobustCommand\phantom{\v@true\h@true\ph@nt}
\DeclareRobustCommand\mathstrut{\vphantom(}
\def\ph@nt{%
  \ifmmode
    \expandafter\mathpalette\expandafter\mathph@nt
  \else
    \expandafter\makeph@nt
  \fi}
\def\makeph@nt#1{%
  \setbox\z@\hbox{\color@begingroup#1\color@endgroup}\finph@nt}
\def\mathph@nt#1#2{%
  \setbox\z@\hbox{$\m@th#1{#2}$}\finph@nt}
\def\finph@nt{%
  \setbox\tw@\null
  \ifv@ \ht\tw@\ht\z@ \dp\tw@\dp\z@\fi
  \ifh@ \wd\tw@\wd\z@\fi
  \leavevmode@ifvmode\box\tw@}
\DeclareRobustCommand\smash{%
  \relax % \relax, in case this comes first in \halign
  \ifmmode
    \expandafter\mathpalette\expandafter\mathsm@sh
  \else
    \expandafter\makesm@sh
  \fi}
\def\makesm@sh#1{%
  \setbox\z@\hbox{\color@begingroup#1\color@endgroup}\finsm@sh}
\def\mathsm@sh#1#2{%
  \setbox\z@\hbox{$\m@th#1{#2}$}%
  {}\finsm@sh}
\def\finsm@sh{\ht\z@\z@ \dp\z@\z@ \leavevmode@ifvmode\box\z@}
\def\buildrel#1\over#2{\mathrel{\mathop{\kern\z@#2}\limits^{#1}}}
\DeclareRobustCommand*\cases[1]{\left\{\,\vcenter{\normalbaselines\m@th
    \ialign{$##\hfil$&\quad{##}\hfil\crcr#1\crcr}}\right.}
\DeclareRobustCommand*\matrix[1]{\null\,\vcenter{\normalbaselines\m@th
    \ialign{\hfil$##$\hfil&&\quad\hfil$##$\hfil\crcr
      \mathstrut\crcr\noalign{\kern-\baselineskip}
      #1\crcr\mathstrut\crcr\noalign{\kern-\baselineskip}}}\,}
\DeclareRobustCommand*\pmatrix[1]{\left(\matrix{#1}\right)}
\def\bordermatrix#1{\begingroup \m@th
  \@tempdima 8.75\p@
  \setbox\z@\vbox{%
    \def\cr{\crcr\noalign{\kern2\p@\global\let\cr\endline}}%
    \ialign{$##$\hfil\kern2\p@\kern\@tempdima&\thinspace\hfil$##$\hfil
      &&\quad\hfil$##$\hfil\crcr
      \omit\strut\hfil\crcr\noalign{\kern-\baselineskip}%
      #1\crcr\omit\strut\cr}}%
  \setbox\tw@\vbox{\unvcopy\z@\global\setbox\@ne\lastbox}%
  \setbox\tw@\hbox{\unhbox\@ne\unskip\global\setbox\@ne\lastbox}%
  \setbox\tw@\hbox{$\kern\wd\@ne\kern-\@tempdima\left(\kern-\wd\@ne
    \global\setbox\@ne\vbox{\box\@ne\kern2\p@}%
    \vcenter{\kern-\ht\@ne\unvbox\z@\kern-\baselineskip}\,\right)$}%
  \null\;\vbox{\kern\ht\@ne\box\tw@}\endgroup}
\protected\def\openup{\afterassignment\@penup\dimen@}
\def\@penup{\advance\lineskip\dimen@
  \advance\baselineskip\dimen@
  \advance\lineskiplimit\dimen@}
\newif\ifdt@p
\def\displ@y{\global\dt@ptrue\openup\jot\m@th
  \everycr{\noalign{\ifdt@p \global\dt@pfalse \ifdim\prevdepth>-1000\p@
      \vskip-\lineskiplimit \vskip\normallineskiplimit \fi
      \else \penalty\interdisplaylinepenalty \fi}}}
\def\@lign{\tabskip\z@skip\everycr{}} % restore inside \displ@y
\def\displaylines#1{\displ@y \tabskip\z@skip
  \halign{\hb@xt@\displaywidth{$\@lign\hfil\displaystyle##\hfil$}\crcr
    #1\crcr}}
\let\sp=^
\let\sb=_

\DeclareRobustCommand\tmspace[3]{%
  \ifmmode\mskip#1#2\else\leavevmode@ifvmode\kern#1#3\fi\relax}
\DeclareRobustCommand\,{\tmspace+\thinmuskip{.16667em}}
\let\thinspace\,
\DeclareRobustCommand\!{\tmspace-\thinmuskip{.16667em}}
\let\negthinspace\!
\DeclareRobustCommand\:{\tmspace+\medmuskip{.2222em}}
\let\medspace\:
\let\>=\:
\DeclareRobustCommand\negmedspace{\tmspace-\medmuskip{.2222em}}
\DeclareRobustCommand\;{\tmspace+\thickmuskip{.2777em}}
\let\thickspace\;
\DeclareRobustCommand\negthickspace{\tmspace-\thickmuskip{.2777em}}
\DeclareRobustCommand\*{\discretionary{\thinspace\the\textfont2\char2}{}{}}
\def\active@math@prime{^\bgroup\prim@s}
{\catcode`\'=\active \global\let'\active@math@prime}
\def\prim@s{%
  \prime\futurelet\@let@token\pr@m@s}
\def\pr@m@s{%
  \ifx'\@let@token
    \expandafter\pr@@@s
  \else
    \ifx^\@let@token
      \expandafter\expandafter\expandafter\pr@@@t
    \else
      \egroup
    \fi
  \fi}
\def\pr@@@s#1{\prim@s}
\def\pr@@@t#1#2{#2\egroup}
{\catcode`\_=\active \gdef_{\_}} % _ in math is
                                 % either subscript or \_
\DeclareRobustCommand\({%
  \relax\ifmmode\@badmath\else$\fi}%
\DeclareRobustCommand\){%
  \relax\ifmmode\ifinner$\else\@badmath\fi\else \@badmath\fi}%
\DeclareRobustCommand\[{%
   \relax\ifmmode
      \@badmath
   \else
      \ifvmode
         \nointerlineskip
         \makebox[.6\linewidth]{}%
      \fi
      $$%%$$ BRACE MATCH HACK
   \fi
}%
\DeclareRobustCommand\]{%
   \relax\ifmmode
      \ifinner
         \@badmath
      \else
         $$%%$$ BRACE MATCH HACK
      \fi
   \else
      \@badmath
   \fi
   \ignorespaces
}%
\let\math=\(
\let\endmath=\)
\def\displaymath{\[}
\def\enddisplaymath{\]\@ignoretrue}
\@definecounter{equation}
\def\equation{$$\refstepcounter{equation}}
\def\endequation{\eqno \hbox{\@eqnnum}$$\@ignoretrue}
\def\@eqnnum{{\normalfont \normalcolor (\theequation)}}
\DeclareRobustCommand\stackrel[2]{\mathrel{\mathop{#2}\limits^{#1}}}
\DeclareRobustCommand\frac[2]{{\begingroup#1\endgroup\over#2}}
\DeclareRobustCommand\sqrt{\@ifnextchar[\@sqrt\sqrtsign}
\def\@sqrt[#1]{\root #1\of}
\newcount\@eqcnt
\newcount\@eqpen
\newif\if@eqnsw\@eqnswtrue
\newskip\@centering
\@centering = 0pt plus 1000pt
\def\eqnarray{%
   \stepcounter{equation}%
   \def\@currentlabel{\p@equation\theequation}%
   \def\@currentcounter{equation}%
   \global\@eqnswtrue
   \m@th
   \global\@eqcnt\z@
   \tabskip\@centering
   \let\\\@eqncr
   $$\everycr{}\halign to\displaywidth\bgroup
       \hskip\@centering$\displaystyle\tabskip\z@skip{##}$\@eqnsel
      &\global\@eqcnt\@ne\hskip \tw@\arraycolsep \hfil${##}$\hfil
      &\global\@eqcnt\tw@ \hskip \tw@\arraycolsep
         $\displaystyle{##}$\hfil\tabskip\@centering
      &\global\@eqcnt\thr@@ \hb@xt@\z@\bgroup\hss##\egroup
         \tabskip\z@skip
      \cr
}
\def\endeqnarray{%
      \@@eqncr
      \egroup
      \global\advance\c@equation\m@ne
   $$\@ignoretrue
}
\let\@eqnsel=\relax
\def\nonumber{\global\@eqnswfalse}
\protected\def\@eqncr{%
   {\ifnum0=`}\fi
   \@ifstar{%
      \global\@eqpen\@M\@yeqncr
   }{%
      \global\@eqpen\interdisplaylinepenalty \@yeqncr
   }%
}
\def\@yeqncr{\@testopt\@xeqncr\z@skip}
\def\@xeqncr[#1]{%
   \ifnum0=`{\fi}%
   \@@eqncr
   \noalign{\penalty\@eqpen\vskip\jot\@vspace@calcify{#1}}%
}
\def\@@eqncr{\let\reserved@a\relax
    \ifcase\@eqcnt \def\reserved@a{& & &}\or \def\reserved@a{& &}%
     \or \def\reserved@a{&}\else
       \let\reserved@a\@empty
       \@latex@error{Too many columns in eqnarray environment}\@ehc\fi
     \reserved@a \if@eqnsw\@eqnnum\stepcounter{equation}\fi
     \global\@eqnswtrue\global\@eqcnt\z@\cr}
\let\@seqncr=\@eqncr
\@namedef{eqnarray*}{\protected\def\@eqncr{\nonumber\@seqncr}\eqnarray}
\@namedef{endeqnarray*}{\nonumber\endeqnarray}
\def\lefteqn#1{\rlap{$\displaystyle #1$}}
\DeclareRobustCommand{\ensuremath}{%
  \ifmmode
    \expandafter\@firstofone
  \else
    \expandafter\@ensuredmath
  \fi}
\long\def\@ensuredmath#1{$\relax#1$}
\ifx\mathdefaultsmode\@undefined\else
  \mathdefaultsmode=1
\fi
\let\@kernel@eqno\eqno
\let\@kernel@leqno\leqno
\protected\def\eqno{\@kernel@eqno\aftergroup\ignorespaces}
\protected\def\leqno{\@kernel@leqno\aftergroup\ignorespaces}
%%% From File: ltlists.dtx
\newskip\topsep
\newskip\partopsep
\newskip\itemsep
\newskip\parsep
\newskip\@topsep
\newskip\@topsepadd
\newskip\@outerparskip
\newdimen\leftmargin
\newdimen\rightmargin
\newdimen\listparindent
\newdimen\itemindent
\newdimen\labelwidth
\newdimen\labelsep
\newdimen\linewidth
\newdimen\@totalleftmargin \@totalleftmargin=\z@
\newdimen\leftmargini
\newdimen\leftmarginii
\newdimen\leftmarginiii
\newdimen\leftmarginiv
\newdimen\leftmarginv
\newdimen\leftmarginvi
\newcount\@listdepth \@listdepth=0
\newcount\@itempenalty
\newcount\@beginparpenalty
\newcount\@endparpenalty
\newbox\@labels
\newif\if@inlabel \@inlabelfalse
\newif\if@newlist   \@newlistfalse
\newif\if@noparitem \@noparitemfalse
\newif\if@noparlist \@noparlistfalse
\newif\if@noitemarg \@noitemargfalse
\newif\if@nmbrlist  \@nmbrlistfalse
\def\list#1#2{%
  \ifnum \@listdepth >5\relax
    \@toodeep
  \else
    \global\advance\@listdepth\@ne
  \fi
  \rightmargin\z@
  \listparindent\z@
  \itemindent\z@
  \csname @list\romannumeral\the\@listdepth\endcsname
  \def\@itemlabel{#1}%
  \let\makelabel\@mklab
  \@nmbrlistfalse
  #2\relax
  \@trivlist
  \parskip\parsep
  \parindent\listparindent
  \advance\linewidth -\rightmargin
  \advance\linewidth -\leftmargin
  \advance\@totalleftmargin \leftmargin
  \parshape \@ne \@totalleftmargin \linewidth
  \ignorespaces}
\newcount\par@deathcycles
\def\@trivlist{%
  \if@noskipsec \leavevmode \fi
  \@topsepadd \topsep
  \ifvmode
    \advance\@topsepadd \partopsep
  \else
    \unskip \par
  \fi
  \if@inlabel
    \@noparitemtrue
    \@noparlisttrue
  \else
    \if@newlist \@noitemerr \fi
    \@noparlistfalse
    \@topsep \@topsepadd
  \fi
  \advance\@topsep \parskip
  \leftskip \z@skip
  \rightskip \@rightskip
  \parfillskip \@flushglue
  \par@deathcycles \z@
  \@setpar{\if@newlist
             \advance\par@deathcycles \@ne
             \ifnum \par@deathcycles >\@m
               \@noitemerr
               {\@@par}%
             \fi
           \else
             {\@@par}%
           \fi}%
  \global \@newlisttrue
  \@outerparskip \parskip}
\def\trivlist{%
  \parsep\parskip
  \@nmbrlistfalse
  \@trivlist
  \labelwidth\z@
  \leftmargin\z@
  \itemindent\z@
  \let\@itemlabel\@empty
  \def\makelabel##1{##1}}
\def\endlist{%
  \global\advance\@listdepth\m@ne
  \endtrivlist}
\def\endtrivlist{%
  \if@inlabel
    \leavevmode
    \global \@inlabelfalse
  \fi
  \if@newlist
    \@noitemerr
    \global \@newlistfalse
  \fi
  \ifhmode\unskip \par
  \else
    \@inmatherr{\end{\@currenvir}}%
  \fi
  \if@noparlist \else
    \ifdim\lastskip >\z@
      \@tempskipa\lastskip \vskip -\lastskip
      \advance\@tempskipa\parskip \advance\@tempskipa -\@outerparskip
      \vskip\@tempskipa
    \fi
    \@endparenv
  \fi
}
\def\@endparenv{%
  \addpenalty\@endparpenalty\addvspace\@topsepadd\@endpetrue}
\def\@doendpe{\@endpetrue
     \def\par{\@restorepar
              \clubpenalty\@clubpenalty
              \@endpefalse
              \everypar{}\par}%
     \everypar
         {{\setbox\z@\lastbox}%
          \everypar{}\@endpefalse}}
\newif\if@endpe
\def\@endpefalse{\global\let\if@endpe\iffalse}
\def\@endpetrue {%
  \global\let\if@endpe\iftrue
  \ifnum\currentgrouptype =14        % semi-simple group
    \aftergroup\propagate@doendpe
  \else
    \ifnum\currentgrouptype =\z@     % no group: top-level
    \else
      \ifnum\currentgrouptype =\@ne  % simple group
        \aftergroup\propagate@doendpe
     \fi
    \fi
  \fi
}
\def\propagate@doendpe{\if@endpe \@doendpe \fi}
\def\@mklab#1{\hfil #1}
\def\item{%
  \@inmatherr\item
  \@ifnextchar [\@item{\@noitemargtrue \@item[\@itemlabel]}}
\def\@donoparitem{%
  \@noparitemfalse
  \global\setbox\@labels\hbox{\hskip -\leftmargin
                               \unhbox\@labels
                                \hskip \leftmargin}%
  \if@minipage\else
    \@tempskipa\lastskip
    \vskip -\lastskip
    \advance\@tempskipa\@outerparskip
    \advance\@tempskipa -\parskip
    \vskip\@tempskipa
  \fi}
\def\@item[#1]{%
  \if@noparitem
    \@donoparitem
  \else
    \if@inlabel
      \indent \par
    \fi
    \ifhmode
      \unskip\unskip \par
    \fi
    \if@newlist
      \if@nobreak
        \@nbitem
      \else
        \addpenalty\@beginparpenalty
        \addvspace\@topsep
        \addvspace{-\parskip}%
      \fi
    \else
      \addpenalty\@itempenalty
      \addvspace\itemsep
    \fi
    \global\@inlabeltrue
  \fi
  \everypar{%
    \@minipagefalse
    \global\@newlistfalse
    \if@inlabel
      \global\@inlabelfalse
      {\setbox\z@\lastbox
       \ifvoid\z@
         \kern-\itemindent
       \fi}%
      \box\@labels
      \penalty\z@
    \fi
    \if@nobreak
      \@nobreakfalse
      \clubpenalty \@M
    \else
      \clubpenalty \@clubpenalty
      \everypar{}%
    \fi}%
  \if@noitemarg
    \@noitemargfalse
    \if@nmbrlist
      \refstepcounter\@listctr
    \fi
  \fi
  \sbox\@tempboxa{\makelabel{#1}}%
  \global\setbox\@labels\hbox{%
    \unhbox\@labels
    \hskip \itemindent
    \hskip -\labelwidth
    \hskip -\labelsep
    \ifdim \wd\@tempboxa >\labelwidth
      \box\@tempboxa
    \else
      \hbox to\labelwidth {\unhbox\@tempboxa}%
    \fi
    \hskip \labelsep}%
  \ignorespaces}
\def\makelabel#1{%
  \@latex@error{Lonely \string\item--perhaps a missing
        list environment}\@ehc}
\def\@nbitem{%
  \@tempskipa\@outerparskip
  \advance\@tempskipa -\parskip
  \addvspace\@tempskipa}
\def\usecounter#1{\@nmbrlisttrue\def\@listctr{#1}\setcounter{#1}\z@}
\newcount\@enumdepth \@enumdepth = 0
\@definecounter{enumi}
\@definecounter{enumii}
\@definecounter{enumiii}
\@definecounter{enumiv}
\def\enumerate{%
  \ifnum \@enumdepth >\thr@@\@toodeep\else
    \advance\@enumdepth\@ne
    \edef\@enumctr{enum\romannumeral\the\@enumdepth}%
      \expandafter
      \list
        \csname label\@enumctr\endcsname
        {\usecounter\@enumctr\def\makelabel##1{\hss\llap{##1}}}%
  \fi}
\let\endenumerate =\endlist
\newcount\@itemdepth \@itemdepth = 0
\def\itemize{%
  \ifnum \@itemdepth >\thr@@\@toodeep\else
    \advance\@itemdepth\@ne
    \edef\@itemitem{labelitem\romannumeral\the\@itemdepth}%
    \expandafter
    \list
      \csname\@itemitem\endcsname
      {\def\makelabel##1{\hss\llap{##1}}}%
  \fi}
\let\enditemize =\endlist
%%% From File: ltboxes.dtx
\message{boxes,}
\DeclareRobustCommand\makebox{%
  \leavevmode
  \@ifnextchar(%)
    \@makepicbox
    {\@ifnextchar[\@makebox\mbox}}%
\DeclareRobustCommand\mbox[1]{\leavevmode\hbox{#1}}
\def\@makebox[#1]{%
  \@ifnextchar [{\@imakebox[#1]}{\@imakebox[#1][c]}}
\long\def\@begin@tempboxa#1#2{%
   \begingroup
     \setbox\@tempboxa#1{\color@begingroup#2\color@endgroup}%
     \def\width{\wd\@tempboxa}%
     \def\height{\ht\@tempboxa}%
     \def\depth{\dp\@tempboxa}%
     \let\totalheight\@ovri
     \totalheight\height
     \advance\totalheight\depth}
\let\@end@tempboxa\endgroup
\def\bm@c{\hss\unhbox\@tempboxa\hss}
\def\bm@l{\unhbox\@tempboxa\hss}\let\bm@t\bm@l
\def\bm@r{\hss\unhbox\@tempboxa}\let\bm@b\bm@r
\def\bm@s{\unhbox\@tempboxa}
\long\def\@imakebox[#1][#2]#3{%
  \@begin@tempboxa\hbox{#3}%
    \setlength\@tempdima{#1}%       support calc
    \hb@xt@\@tempdima{%
     \expandafter\ifx\csname bm@#2\endcsname\relax
       \bm@c
       \@latex@warning{Unexpected alignment #2}%
     \else
       \csname bm@#2\endcsname
     \fi}%
  \@end@tempboxa}
\def\@makepicbox(#1,#2){%
  \@ifnextchar[{\@imakepicbox(#1,#2)}{\@imakepicbox(#1,#2)[]}}
\long\def\@imakepicbox(#1,#2)[#3]#4{%
  \@defaultunitsset\@tempdimc{#2}\unitlength
  \vbox to\@tempdimc
   {\let\mb@b\vss \let\mb@l\hss\let\mb@r\hss
    \let\mb@t\vss
    \@tfor\reserved@a :=#3\do{%
      \if s\reserved@a
        \let\mb@l\relax\let\mb@r\relax
      \else
        \expandafter\let\csname mb@\reserved@a\endcsname\relax
      \fi}%
    \mb@t
    \@defaultunitsset\@tempdimc{#1}\unitlength
    \hb@xt@\@tempdimc{\mb@l #4\mb@r}%
    \mb@b
    \kern\z@}}
\let\set@color\relax
\let\color@begingroup\begingroup
\def\color@setgroup{\color@begingroup}        % changed further in color package
\let\normalcolor\relax                        % remains untouched; only changed in a color package
\def\color@hbox{\hbox\bgroup\color@begingroup}
\def\color@vbox{\vbox\bgroup\color@begingroup}
\def\color@endbox{\color@endgroup\egroup}

\def\color@endgroup{\endgraf\@endpefalse\endgroup}

\def\newsavebox#1{\@ifdefinable{#1}{\newbox#1}}
\DeclareRobustCommand\savebox[1]{%
  \@ifnextchar(%)
    {\@savepicbox#1}{\@ifnextchar[{\@savebox#1}{\sbox#1}}}%
\DeclareRobustCommand\sbox[2]{\setbox#1\hbox{%
  \color@setgroup#2\color@endgroup}}
\def\@savebox#1[#2]{%
  \@ifnextchar [{\@isavebox#1[#2]}{\@isavebox#1[#2][c]}}
\long\def\@isavebox#1[#2][#3]#4{%
  \sbox#1{\@imakebox[#2][#3]{#4}}}
\def\@savepicbox#1(#2,#3){%
  \@ifnextchar[%]
    {\@isavepicbox#1(#2,#3)}{\@isavepicbox#1(#2,#3)[]}}
\long\def\@isavepicbox#1(#2,#3)[#4]#5{%
  \sbox#1{\@imakepicbox(#2,#3)[#4]{#5}}}
\def\lrbox#1{%
  \edef\reserved@a{%
    \endgroup
    \setbox#1\hbox{%
      \begingroup\aftergroup}%
        \def\noexpand\@currenvir{\@currenvir}%
        \def\noexpand\@currenvline{\on@line}}%
  \reserved@a
    \@endpefalse
    \color@setgroup
      \ignorespaces}
\def\endlrbox{\unskip\color@endgroup}
\DeclareRobustCommand\usebox[1]{\leavevmode\copy #1\relax}
\DeclareRobustCommand\frame[1]{%
  \leavevmode
  \hbox{%
    \hskip-\@wholewidth
    \vbox{%
      \vskip-\@wholewidth
      \hrule \@height\@wholewidth
      \hbox{%
        \vrule\@width\@wholewidth
        #1%
        \vrule\@width\@wholewidth}%
      \hrule\@height\@wholewidth
      \vskip-\@wholewidth}%
    \hskip-\@wholewidth}}
\newdimen\fboxrule
\newdimen\fboxsep
\DeclareRobustCommand\fbox[1]{%
  \leavevmode
  \setbox\@tempboxa\hbox{%
    \color@begingroup
      \kern\fboxsep{#1}\kern\fboxsep
    \color@endgroup}%
  \@frameb@x\relax}
\DeclareRobustCommand\framebox{%
  \@ifnextchar(%)
    \@framepicbox{\@ifnextchar[\@framebox\fbox}}%
\def\@framebox[#1]{%
  \@ifnextchar[%]
    {\@iframebox[#1]}%
    {\@iframebox[#1][c]}}
\long\def\@iframebox[#1][#2]#3{%
  \leavevmode
  \@begin@tempboxa\hbox{#3}%
    \setlength\@tempdima{#1}%
    \setbox\@tempboxa\hb@xt@\@tempdima
         {\kern\fboxsep
          \expandafter\ifx\csname bm@#2\endcsname\relax
            \bm@c
            \@latex@warning{Unexpected alignment #2}%
          \else
            \csname bm@#2\endcsname
          \fi
          \kern\fboxsep}%
    \@frameb@x{\kern-\fboxrule}%
  \@end@tempboxa}
\def\@frameb@x#1{%
  \@tempdima\fboxrule
  \advance\@tempdima\fboxsep
  \advance\@tempdima\dp\@tempboxa
  \hbox{%
    \lower\@tempdima\hbox{%
      \vbox{%
        \hrule\@height\fboxrule
        \hbox{%
          \vrule\@width\fboxrule
          #1%
          \vbox{%
            \vskip\fboxsep
            \box\@tempboxa
            \vskip\fboxsep}%
          #1%
          \vrule\@width\fboxrule}%
        \hrule\@height\fboxrule}%
                          }%
        }%
}
\def\@framepicbox(#1,#2){%
  \@ifnextchar[{\@iframepicbox(#1,#2)}{\@iframepicbox(#1,#2)[]}}
\long\def\@iframepicbox(#1,#2)[#3]#4{%
  \frame{\@imakepicbox(#1,#2)[#3]{#4}}}
\DeclareRobustCommand\parbox{%
  \@ifnextchar[%]
    \@iparbox
    {\@iiiparbox c\relax[s]}}%
\def\@iparbox[#1]{%
  \@ifnextchar[%]
    {\@iiparbox{#1}}%
    {\@iiiparbox{#1}\relax[s]}}
\def\@iiparbox#1[#2]{%
  \@ifnextchar[%]
    {\@iiiparbox{#1}{#2}}%
    {\@iiiparbox{#1}{#2}[#1]}}
\let\@parboxto\@empty
\long\def\@iiiparbox#1#2[#3]#4#5{%
  \leavevmode
  \@pboxswfalse
  \setlength\@tempdima{#4}%
  \@begin@tempboxa\vbox{\hsize\@tempdima\@parboxrestore#5\@@par}%
    \ifx\relax#2\else
      \setlength\@tempdimb{#2}%
      \edef\@parboxto{to\the\@tempdimb}%
    \fi
    \if#1b\vbox
    \else\if #1t\vtop
    \else\ifmmode\vcenter
    \else\@pboxswtrue $\vcenter
    \fi\fi\fi
    \@parboxto{\let\hss\vss\let\unhbox\unvbox
     \expandafter\ifx\csname bm@#3\endcsname\relax
       \bm@c
       \@latex@warning{Unexpected alignment #3}%
     \else
       \csname bm@#3\endcsname
     \fi}%
    \if@pboxsw \m@th$\fi
  \@end@tempboxa}
\def\@arrayparboxrestore{%
  \let\if@nobreak\iffalse
  \let\if@noskipsec\iffalse
  \let\par\@@par
  \let\-\@dischyph
  \let\'\@acci\let\`\@accii\let\=\@acciii
  \parindent\z@ \parskip\z@skip
  \everypar{}%
  \linewidth\hsize
  \@totalleftmargin\z@
  \leftskip\z@skip \rightskip\z@skip \@rightskip\z@skip
  \parfillskip\@flushglue
  \lineskip\normallineskip
  \lineskiplimit\normallineskiplimit
  \baselineskip\normalbaselineskip
  \sloppy}
\def\@parboxrestore{\@arrayparboxrestore\let\\\@normalcr}
\def\@minipagefalse{\global\let\if@minipage\iffalse}
\def\@minipagetrue {\global\let\if@minipage\iftrue}
\@minipagefalse
\newif\if@in@minipage@env
\def\minipage{%
  \@ifnextchar[%]
    \@iminipage
    {\@iiiminipage c\relax[s]}}
\def\@iminipage[#1]{%
  \@ifnextchar[%]
    {\@iiminipage{#1}}%
    {\@iiiminipage{#1}\relax[s]}}
\def\@iiminipage#1[#2]{%
  \@ifnextchar[%]
    {\@iiiminipage{#1}{#2}}%
    {\@iiiminipage{#1}{#2}[#1]}}
\def\@iiiminipage#1#2[#3]#4{%
  \leavevmode
  \@pboxswfalse
  \setlength\@tempdima{#4}%
  \def\@mpargs{{#1}{#2}[#3]{#4}}%
  \setbox\@tempboxa\vbox\bgroup
    \color@begingroup
      \hsize\@tempdima
      \textwidth\hsize \columnwidth\hsize
      \if@in@minipage@env
        \ifvoid\@mpfootins\else
          \@latex@warning{Nested minipage:
            footnotes may be misplaced}%
        \fi
      \else
        \@in@minipage@envtrue
      \fi
      \@parboxrestore
      \def\@mpfn{mpfootnote}\def\thempfn{\thempfootnote}\c@mpfootnote\z@
      \let\@footnotetext\@mpfootnotetext
      \let\@listdepth\@mplistdepth \@mplistdepth\z@
      \@minipagerestore
      \@setminipage}
 \let\@minipagerestore=\relax
\def\endminipage{%
    \par
    \unskip
    \ifvoid\@mpfootins\else
      \vskip\skip\@mpfootins
      \normalcolor
      \footnoterule
      \unvbox\@mpfootins
    \fi
    \@minipagefalse   %% added 24 May 89
  \color@endgroup
  \egroup
  \expandafter\@iiiparbox\@mpargs{\unvbox\@tempboxa}}
\newcount\@mplistdepth
\newinsert\@mpfootins
\long\def\@mpfootnotetext#1{%
  \global\setbox\@mpfootins\vbox{%
    \unvbox\@mpfootins
    \reset@font\footnotesize
    \hsize\columnwidth
    \@parboxrestore
    \def\@currentcounter{mpfootnote}%
    \protected@edef\@currentlabel
         {\csname p@mpfootnote\endcsname\@thefnmark}%
    \color@begingroup
      \@makefntext{%
        \rule\z@\footnotesep\ignorespaces#1\@finalstrut\strutbox}%
    \par
    \color@endgroup}}
\newif\if@pboxsw
\DeclareRobustCommand\rule{\@ifnextchar[\@rule{\@rule[\z@]}}%
 \def\@rule[#1]#2#3{%
   \leavevmode
   \hbox{%
     \setlength\@tempdima{#1}%
     \setlength\@tempdimb{#2}%
     \setlength\@tempdimc{#3}%
     \advance\@tempdimc\@tempdima
     \vrule\@width\@tempdimb\@height\@tempdimc\@depth-\@tempdima}}
\let\@@underline\underline
\DeclareRobustCommand\underline[1]{%
  \relax
  \ifmmode\@@underline{#1}%
  \else $\@@underline{\hbox{#1}}\m@th$\relax\fi}
\DeclareRobustCommand\raisebox[1]{%
  \leavevmode
  \@ifnextchar[{\@rsbox{#1}}{\@irsbox{#1}[]}}
\def\@rsbox#1[#2]{%
  \@ifnextchar[{\@iirsbox{#1}[#2]}{\@irsbox{#1}[#2]}}
\long\def\@irsbox#1[#2]#3{%
  \@begin@tempboxa\hbox{#3}%
    \setlength\@tempdima{#1}%
    \ifx\\#2\\\else\setlength\@tempdimb{#2}\fi
    \setbox\@tempboxa\hbox{\raise\@tempdima\box\@tempboxa}%
    \ifx\\#2\\\else\ht\@tempboxa\@tempdimb\fi
    \box\@tempboxa
  \@end@tempboxa}
\long\def\@iirsbox#1[#2][#3]#4{%
  \@begin@tempboxa\hbox{#4}%
    \setlength\@tempdima{#1}%
    \setlength\@tempdimb{#2}%
    \setlength\dimen@{#3}%
    \setbox\@tempboxa\hbox{\raise\@tempdima\box\@tempboxa}%
    \ht\@tempboxa\@tempdimb
    \dp\@tempboxa\dimen@
    \box\@tempboxa
  \@end@tempboxa}
\def\@finalstrut#1{%
  \unskip
  \ifhmode \nobreak
  \else
    \vskip-\baselineskip
  \fi
  \vrule\@width\z@\@height\z@\@depth\dp#1}
\def\@@line{\hb@xt@\hsize}
\DeclareRobustCommand\leftline[1]{\@@line{#1\hss}}
\DeclareRobustCommand\rightline[1]{\@@line{\hss#1}}
\DeclareRobustCommand\centerline[1]{\@@line{\hss#1\hss}}
\DeclareRobustCommand\rlap[1]{\hb@xt@\z@{#1\hss}}
\DeclareRobustCommand\llap[1]{\hb@xt@\z@{\hss#1}}
\DeclareRobustCommand\clap[1]{\hb@xt@\z@{\hss#1\hss}}
%%% From File: lttab.dtx
\expandafter\let\csname ver@autotabg.sty\endcsname\fmtversion
\newdimen\@gtempa
\chardef\@firsttab=\the\allocationnumber
\newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa
\newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa
\newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa
\newdimen\@gtempa
\chardef\@maxtab=\the\allocationnumber
\dimen\@firsttab=0pt
\newcount\@nxttabmar
\newcount\@curtabmar
\newcount\@curtab
\newcount\@hightab
\newcount\@tabpush
\newbox\@curline
\newbox\@curfield
\newbox\@tabfbox
\newif\if@rjfield
\def\@startline{%
     \ifnum \@nxttabmar >\@hightab
       \@badtab
       \global\@nxttabmar \@hightab
     \fi
     \global\@curtabmar \@nxttabmar
     \global\@curtab \@curtabmar
     \global\setbox\@curline \hbox {}%
     \@startfield
     \strut}
\def\@stopline{%
  \unskip
  \@stopfield
  \if@rjfield
    \global\@rjfieldfalse
    \@tempdima\@totalleftmargin
    \advance\@tempdima\linewidth
    \hb@xt@\@tempdima{%
      \@itemfudge\hskip\dimen\@curtabmar
      \box\@curline
      \hfil
      \box\@curfield}%
  \else
    \@addfield
    \hbox{\@itemfudge\hskip\dimen\@curtabmar\box\@curline}%
  \fi}
\def\@startfield{%
  \global\setbox\@curfield\hbox\bgroup\color@begingroup}
\def\@stopfield{%
  \color@endgroup\egroup}
\def\@contfield{%
  \global\setbox\@curfield\hbox\bgroup\color@begingroup
  \unhbox\@curfield}
\def\@addfield{\global\setbox\@curline\hbox{\unhbox
     \@curline\unhbox\@curfield}}
\def\@ifatmargin{\ifdim \wd\@curline =\z@}
\protected\def\@tabcr{\@stopline \@ifstar{\penalty \@M \@xtabcr}\@xtabcr}
\def\@xtabcr{\@ifnextchar[\@itabcr{\@startline\ignorespaces}}
\def\@itabcr[#1]{\@vspace@calcify{#1}\@startline\ignorespaces}
\def\tabbing{\lineskip \z@skip\let\>\@rtab\let\<\@ltab\let\=\@settab
     \let\+\@tabplus\let\-\@tabminus\let\`\@tabrj\let\'\@tablab
     \let\\=\@tabcr
     \@hightab\@firsttab
     \global\@nxttabmar\@firsttab
     \dimen\@firsttab\@totalleftmargin
     \global\@tabpush\z@ \global\@rjfieldfalse
     \trivlist \item\relax
     \if@minipage\else\vskip\parskip\fi
     \setbox\@tabfbox\hbox{%
       \rlap{\hskip\@totalleftmargin\indent\the\everypar}}%
     \def\@itemfudge{\box\@tabfbox}%
     \@startline\ignorespaces}
\def\endtabbing{%
  \@stopline\ifnum\@tabpush >\z@ \@badpoptabs \fi\endtrivlist}
\def\@rtab{\@stopfield\@addfield\ifnum \@curtab<\@hightab
      \global\advance\@curtab \@ne \else\@badtab\fi
      \@tempdima\dimen\@curtab
      \advance\@tempdima -\dimen\@curtabmar
      \advance\@tempdima -\wd\@curline
      \global\setbox\@curline\hbox{\unhbox\@curline\hskip\@tempdima}%
      \@startfield\ignorespaces}
\def\@settab{\@stopfield\@addfield
  \ifnum \@curtab <\@maxtab
    \ifnum\@curtab =\@hightab
      \advance\@hightab \@ne
    \fi
    \global\advance\@curtab \@ne
  \else
    \@latex@error{Tab overflow}\@ehd
  \fi
  \dimen\@curtab \dimen\@curtabmar
  \advance\dimen\@curtab \wd\@curline
  \@startfield
  \ignorespaces}
\def\@ltab{\@ifatmargin\ifnum\@curtabmar >\@firsttab
      \global\advance\@curtab \m@ne \global\advance\@curtabmar\m@ne\else
      \@badtab\fi\else
      \@latex@error{\string\<\space in mid line}\@ehd\fi\ignorespaces}
\def\@tabplus{%
  \ifnum\@nxttabmar<\@hightab
    \global\advance\@nxttabmar\@ne
  \else
    \@badtab
  \fi
  \ignorespaces}
\def\@tabminus{%
  \ifnum\@nxttabmar>\@firsttab
    \global\advance\@nxttabmar\m@ne
  \else
    \@badtab
  \fi
  \ignorespaces}
\def\@tabrj{%
  \@stopfield\@addfield\global\@rjfieldtrue\@startfield\ignorespaces}
\def\@tablab{%
  \@stopfield
  \global\setbox\@curline\hbox{%
    \box\@curline
    \hskip-\wd\@curfield \hskip-\tabbingsep
    \box\@curfield
    \hskip\tabbingsep}%
  \@startfield
  \ignorespaces}
\DeclareRobustCommand\pushtabs{%
  \@stopfield\@addfield\global\advance\@tabpush \@ne \begingroup
       \@contfield}
\DeclareRobustCommand\poptabs{\@stopfield\@addfield
  \ifnum \@tabpush >\z@
    \endgroup
    \global\advance\@tabpush \m@ne
    \ifnum \@curtab >\@hightab
      \global \@curtab \@hightab
      \@badtab
    \fi
  \else
    \@badpoptabs
  \fi
  \@contfield}
\DeclareRobustCommand\kill{\@stopfield\@startline\ignorespaces}
\newdimen\tabbingsep
\def\extracolsep#1{\tabskip #1\relax}
\def\array{\let\@acol\@arrayacol \let\@classz\@arrayclassz
 \let\@classiv\@arrayclassiv
 \let\\\@arraycr\let\@halignto\@empty\@tabarray}
\def\endarray{\crcr\egroup\egroup}
\def\endtabular{\crcr\egroup\egroup $\egroup}
\expandafter \let \csname endtabular*\endcsname = \endtabular
\def\tabular{\let\@halignto\@empty\@tabular}
\@namedef{tabular*}#1{%
 \setlength\dimen@{#1}%
   \edef\@halignto{to\the\dimen@}\@tabular}
\def\@tabular{\leavevmode \hbox \bgroup $\let\@acol\@tabacol
   \let\@classz\@tabclassz
   \let\@classiv\@tabclassiv \let\\\@tabularcr\@tabarray}
\def\@tabarray{\m@th\@ifnextchar[\@array{\@array[c]}}
\def\@array[#1]#2{%
  \if #1t\vtop \else \if#1b\vbox \else \vcenter \fi\fi
  \bgroup
  \setbox\@arstrutbox\hbox{%
    \vrule \@height\arraystretch\ht\strutbox
           \@depth\arraystretch \dp\strutbox
           \@width\z@}%
  \@mkpream{#2}%
  \edef\@preamble{%
    \ialign \noexpand\@halignto
      \bgroup \@arstrut \@preamble \tabskip\z@skip \cr}%
  \let\@startpbox\@@startpbox \let\@endpbox\@@endpbox
  \let\tabularnewline\\%
    \let\par\@empty
    \let\@sharp##%
    \set@typeset@protect
    \lineskip\z@skip\baselineskip\z@skip
    \ifhmode \@preamerr\z@ \@@par\fi
    \@preamble}
\protected\def\@arraycr{%
  ${\ifnum0=`}\fi\@ifstar\@xarraycr\@xarraycr}
\def\@xarraycr{\@ifnextchar[\@argarraycr{\ifnum0=`{\fi}${}\cr}}
\def\@argarraycr[#1]{%
  \ifnum0=`{\fi}${}\ifdim #1>\z@ \@xargarraycr{#1}\else
   \@yargarraycr{#1}\fi}
\let\tabularnewline\relax
\protected\def\@tabularcr{%
  {\ifnum0=`}\fi\@ifstar\@xtabularcr\@xtabularcr}
\def\@xtabularcr{\@ifnextchar[\@argtabularcr{\ifnum0=`{\fi}\cr}}
\def\@argtabularcr[#1]{%
  \ifnum0=`{\fi}%
    \ifdim #1>\z@
      \unskip\@xargarraycr{#1}%
    \else
      \@yargarraycr{#1}%
    \fi}
\def\@xargarraycr#1{\@tempdima #1\advance\@tempdima \dp \@arstrutbox
   \vrule \@height\z@ \@depth\@tempdima \@width\z@ \cr}
\def\@yargarraycr#1{\cr\noalign{\@vspace@calcify{#1}}}
\long\def\multicolumn#1#2#3{\multispan{#1}\begingroup
  \@mkpream{#2}%
  \def\@sharp{#3}\set@typeset@protect
  \let\@startpbox\@@startpbox\let\@endpbox\@@endpbox
  \@arstrut \@preamble\hbox{}\endgroup\ignorespaces}
\def\@xexnoop #1\@@{}
\def\@expast#1{\@xexpast #1*0x\@@}
\def\@xexpast#1*#2#3#4\@@{%
  \edef\reserved@a{#1}%
  \@tempcnta#2\relax
  \ifnum\@tempcnta>\z@
    \@whilenum\@tempcnta>\z@\do
       {\edef\reserved@a{\reserved@a#3}\advance\@tempcnta \m@ne}%
    \let\reserved@b\@xexpast
  \else
    \let\reserved@b\@xexnoop
  \fi
  \expandafter\reserved@b\reserved@a #4\@@}
\newif\if@firstamp
\def\@addamp{%
  \if@firstamp
    \@firstampfalse
  \else
    \edef\@preamble{\@preamble &}%
  \fi}
\def\@arrayacol{\edef\@preamble{\@preamble \hskip \arraycolsep}}
\def\@tabacol{\edef\@preamble{\@preamble \hskip \tabcolsep}}
\def\@ampacol{\@addamp \@acol}
\def\@acolampacol{\@acol\@addamp\@acol}
\def\@mkpream#1{\@firstamptrue\@lastchclass6
  \let\@preamble\@empty
  \let\protect\@unexpandable@protect
  \let\@sharp\relax
  \let\@startpbox\relax\let\@endpbox\relax
  \@expast{#1}%
  \expandafter\@tfor \expandafter
    \@nextchar \expandafter:\expandafter=\reserved@a\do
       {\@testpach\@nextchar
    \ifcase \@chclass \@classz \or \@classi \or \@classii \or \@classiii
      \or \@classiv \or\@classv \fi\@lastchclass\@chclass}%
  \ifcase \@lastchclass \@acol
      \or \or \@preamerr \@ne\or \@preamerr \tw@\or \or \@acol \fi}
\def\@arrayclassz{\ifcase \@lastchclass \@acolampacol \or \@ampacol \or
   \or \or \@addamp \or
   \@acolampacol \or \@firstampfalse \@acol \fi
\edef\@preamble{\@preamble
  \ifcase \@chnum
     \hfil$\relax\@sharp$\hfil \or $\relax\@sharp$\hfil
    \or \hfil$\relax\@sharp$\fi}}
\def\@tabclassz{%
  \ifcase\@lastchclass
    \@acolampacol
  \or
    \@ampacol
  \or
  \or
  \or
    \@addamp
  \or
    \@acolampacol
  \or
    \@firstampfalse\@acol
  \fi
  \edef\@preamble{%
    \@preamble{%
      \ifcase\@chnum
        \hfil
        \hskip1sp%
        \ignorespaces\@sharp\unskip\hfil
      \or
        \hskip1sp\ignorespaces\@sharp\unskip\hfil
      \or
        \hfil\hskip1sp\ignorespaces\@sharp\unskip
      \fi}}}
\def\@classi{%
  \ifcase\@lastchclass
    \@acol\@arrayrule
  \or
    \@addtopreamble{\hskip \doublerulesep}\@arrayrule
  \or
  \or
  \or
    \@arrayrule
  \or
    \@acol\@arrayrule
  \or
    \@arrayrule
  \fi}
\def\@classii{%
  \ifcase\@lastchclass
  \or
    \@addtopreamble{\hskip .5\arrayrulewidth}%
  \fi}
\def\@classiii{\ifcase \@lastchclass \@acolampacol \or
   \@addamp\@acol \or
   \or \or \@addamp \or
   \@acolampacol \or \@ampacol \fi}
\def\@tabclassiv{\@addtopreamble\@nextchar}
\def\@arrayclassiv{\@addtopreamble{$\@nextchar$}}
\def\@classv{\@addtopreamble{\@startpbox{\@nextchar}\ignorespaces
\@sharp\@endpbox}}
\def\@addtopreamble#1{\edef\@preamble{\@preamble #1}}
\newcount\@chclass
\newcount\@lastchclass
\newcount\@chnum
\newdimen\arraycolsep
\newdimen\tabcolsep
\newdimen\arrayrulewidth
\newdimen\doublerulesep
\def\arraystretch{1}    % Default value.
\newbox\@arstrutbox
\def\@arstrut{%
  \relax\ifmmode\copy\@arstrutbox\else\unhcopy\@arstrutbox\fi}
\def\@arrayrule{\@addtopreamble{\hskip -.5\arrayrulewidth
   \vrule \@width \arrayrulewidth\hskip -.5\arrayrulewidth}}
\def\@testpach#1{\@chclass \ifnum \@lastchclass=\tw@ 4 \else
    \ifnum \@lastchclass=3 5 \else
     \z@ \if #1c\@chnum \z@ \else
                              \if #1l\@chnum \@ne \else
                              \if #1r\@chnum \tw@ \else
          \@chclass \if #1|\@ne \else
                    \if #1@\tw@ \else
                    \if #1p3 \else \z@ \@preamerr 0\fi
  \fi  \fi  \fi  \fi  \fi  \fi
\fi}
\def\hline{%
  \noalign{\ifnum0=`}\fi\hrule \@height \arrayrulewidth \futurelet
   \reserved@a\@xhline}
\def\@xhline{\ifx\reserved@a\hline
               \vskip\doublerulesep
               \vskip-\arrayrulewidth
             \fi
      \ifnum0=`{\fi}}
\def\vline{\vrule \@width \arrayrulewidth}
\def\cline#1{\@cline#1\@nil}
\def\@cline#1-#2\@nil{%
  \omit
  \@multicnt#1%
  \advance\@multispan\m@ne
  \ifnum\@multicnt=\@ne\@firstofone{&\omit}\fi
  \@multicnt#2%
  \advance\@multicnt-#1%
  \advance\@multispan\@ne
  \leaders\hrule\@height\arrayrulewidth\hfill
  \cr
  \noalign{\vskip-\arrayrulewidth}}
\def\multispan{\omit\@multispan}
\def\@multispan#1{%
  \@multicnt#1\relax
  \loop\ifnum\@multicnt>\@ne \sp@n\repeat}
\def\sp@n{\span\omit\advance\@multicnt\m@ne}

\def\@startpbox#1{\vtop\bgroup \setlength\hsize{#1}\@arrayparboxrestore}
\def\@endpbox{\@finalstrut\@arstrutbox\par\egroup\hfil}
\let\@@startpbox=\@startpbox
\let\@@endpbox=\@endpbox
%%% From File: ltpictur.dtx
\expandafter\let\csname ver@autopict.sty\endcsname\fmtversion
\newdimen\@wholewidth
\newdimen\@halfwidth
\newdimen\unitlength \unitlength =1pt
\newbox\@picbox
\newdimen\@picht
\def\@defaultunitsset#1#2#3{%
  \@defaultunits#1\dimexpr#2#3\relax\relax\@nnil}
\long\def\picture#1{\pictur@#1}
\def\pictur@(#1){%
  \@ifnextchar({\@picture(#1)}{\@picture(#1)(0,0)}}
\def\@picture(#1,#2)(#3,#4){%
  \@defaultunitsset\@picht{#2}\unitlength
  \@defaultunitsset\@tempdimc{#1}\unitlength
  \setbox\@picbox\hb@xt@\@tempdimc\bgroup
    \@defaultunitsset\@tempdimc{#3}\unitlength
    \hskip -\@tempdimc
    \@defaultunitsset\@tempdimc{#4}\unitlength
    \lower\@tempdimc\hbox\bgroup
      \ignorespaces}
\def\endpicture{%
  \egroup\hss\egroup
    \ht\@picbox\@picht\dp\@picbox\z@
    \mbox{\box\@picbox}}
\long\def\put(#1,#2)#3{%
  \@killglue
  \@defaultunitsset\@tempdimc{#2}\unitlength
  \raise\@tempdimc
  \hb@xt@\z@{%
    \@defaultunitsset\@tempdimc{#1}\unitlength
    \kern\@tempdimc
    #3\hss}%
  \ignorespaces}
\def\multiput(#1,#2)#3{%
  \@defaultunitsset\@xdim{#1}\unitlength
  \@defaultunitsset\@ydim{#2}\unitlength
   \@multiput(}
\long\def\@multiput(#1,#2)#3#4{%
  \@killglue\@multicnt #3\relax
  \@whilenum \@multicnt >\z@\do
    {\raise\@ydim\hb@xt@\z@{\kern\@xdim #4\hss}%
     \advance\@multicnt\m@ne
     \@defaultunitsset{\advance\@xdim}{#1}\unitlength
     \@defaultunitsset{\advance\@ydim}{#2}\unitlength}%
  \ignorespaces}
\def\@killglue{\unskip\@whiledim \lastskip >\z@\do{\unskip}}
\DeclareRobustCommand\thinlines{\let\@linefnt\tenln
  \let\@circlefnt\tencirc
  \@wholewidth\fontdimen8\tenln \@halfwidth .5\@wholewidth}
\DeclareRobustCommand\thicklines{\let\@linefnt\tenlnw
  \let\@circlefnt\tencircw
  \@wholewidth\fontdimen8\tenlnw \@halfwidth .5\@wholewidth}
\DeclareRobustCommand*\linethickness[1]
   {\@wholewidth #1\relax \@halfwidth .5\@wholewidth \ignorespaces}
\def\shortstack{\@ifnextchar[\@shortstack{\@shortstack[c]}}
\def\@shortstack[#1]{%
  \leavevmode
  \vbox\bgroup
    \baselineskip-\p@\lineskip 3\p@
    \let\mb@l\hss\let\mb@r\hss
    \expandafter\let\csname mb@#1\endcsname\relax
    \let\\\@stackcr
    \@ishortstack}
\def\@ishortstack#1{\ialign{\mb@l {##}\unskip\mb@r\cr #1\crcr}\egroup}
\protected\def\@stackcr{\@ifstar\@ixstackcr\@ixstackcr}
\def\@ixstackcr{\@ifnextchar[\@istackcr{\cr\ignorespaces}}
\def\@istackcr[#1]{\cr\noalign{\@vspace@calcify{#1}}\ignorespaces}
\newif\if@negarg
\def\line(#1,#2)#3{\@xarg #1\relax \@yarg #2\relax
  \@defaultunitsset\@linelen{#3}\unitlength
  \ifdim\@linelen<\z@\@badlinearg\else
    \ifnum\@xarg =\z@ \@vline
      \else \ifnum\@yarg =\z@ \@hline \else \@sline\fi
    \fi
  \fi}
\def\@sline{%
  \ifnum\@xarg<\z@ \@negargtrue \@xarg -\@xarg \@yyarg -\@yarg
  \else \@negargfalse \@yyarg \@yarg \fi
\ifnum \@yyarg >\z@ \@tempcnta\@yyarg \else \@tempcnta -\@yyarg \fi
\ifnum\@tempcnta>6 \@badlinearg\@tempcnta\z@ \fi
\ifnum\@xarg>6 \@badlinearg\@xarg \@ne \fi
\setbox\@linechar\hbox{\@linefnt\@getlinechar(\@xarg,\@yyarg)}%
\ifdim\wd\@linechar=\z@
   \setbox\@linechar\hbox{.}%
   \@badlinearg
\fi
\ifnum \@yarg >\z@ \let\@upordown\raise \@clnht\z@
   \else\let\@upordown\lower \@clnht \ht\@linechar\fi
\@clnwd \wd\@linechar
\if@negarg
  \hskip -\wd\@linechar \def\reserved@a{\hskip -2\wd\@linechar}%
\else
     \let\reserved@a\relax
\fi
\@whiledim \@clnwd <\@linelen \do
  {\@upordown\@clnht\copy\@linechar
   \reserved@a
   \advance\@clnht \ht\@linechar
   \advance\@clnwd \wd\@linechar}%
\advance\@clnht -\ht\@linechar
\advance\@clnwd -\wd\@linechar
\@tempdima\@linelen\advance\@tempdima -\@clnwd
\@tempdimb\@tempdima\advance\@tempdimb -\wd\@linechar
\if@negarg \hskip -\@tempdimb \else \hskip \@tempdimb \fi
\multiply\@tempdima \@m
\@tempcnta \@tempdima
\@tempdima \wd\@linechar \divide\@tempcnta \@tempdima
\@tempdima \ht\@linechar \multiply\@tempdima \@tempcnta
\divide\@tempdima \@m
\advance\@clnht \@tempdima
\ifdim \@linelen <\wd\@linechar
   \hskip \wd\@linechar
   \ifdim \@linelen = \z@
   \else
     \@picture@warn
   \fi
   \else\@upordown\@clnht\copy\@linechar\fi}
\def\@hline{\ifnum \@xarg <\z@ \hskip -\@linelen \fi
\vrule \@height \@halfwidth \@depth \@halfwidth \@width \@linelen
\ifnum \@xarg <\z@ \hskip -\@linelen \fi}
\def\@getlinechar(#1,#2){\@tempcnta#1\relax\multiply\@tempcnta 8%
  \advance\@tempcnta -9\ifnum #2>\z@ \advance\@tempcnta #2\relax\else
  \advance\@tempcnta -#2\relax\advance\@tempcnta 64 \fi
  \char\@tempcnta}
\def\vector(#1,#2)#3{\@xarg #1\relax \@yarg #2\relax
  \@tempcnta \ifnum\@xarg<\z@ -\@xarg\else\@xarg\fi
  \ifnum\@tempcnta<5\relax
  \@defaultunitsset\@linelen{#3}\unitlength
  \ifdim\@linelen<\z@\@badlinearg\else
    \ifnum\@xarg =\z@ \@vvector
      \else \ifnum\@yarg =\z@ \@hvector \else \@svector\fi
    \fi
  \fi
  \else\@badlinearg\fi}
\def\@hvector{\@hline\hb@xt@\z@{\@linefnt
 \ifnum \@xarg <\z@ \@getlarrow(1,0)\hss\else
    \hss\@getrarrow(1,0)\fi}}
\def\@vvector{\ifnum \@yarg <\z@ \@downvector \else \@upvector \fi}
\def\@svector{\@sline
  \@tempcnta\@yarg \ifnum\@tempcnta <\z@ \@tempcnta -\@tempcnta\fi
  \ifnum\@tempcnta <5%
    \hskip -\wd\@linechar
    \@upordown\@clnht \hbox{\@linefnt  \if@negarg
    \@getlarrow(\@xarg,\@yyarg)\else \@getrarrow(\@xarg,\@yyarg)\fi}%
  \else\@badlinearg\fi}
\def\@getlarrow(#1,#2){\ifnum #2=\z@ \@tempcnta 27 % '33
  \else
  \@tempcnta #1\relax\multiply\@tempcnta \sixt@@n
  \advance\@tempcnta -9 \@tempcntb #2\relax\multiply\@tempcntb \tw@
  \ifnum \@tempcntb >\z@ \advance\@tempcnta \@tempcntb
  \else\advance\@tempcnta -\@tempcntb\advance\@tempcnta 64
  \fi\fi\char\@tempcnta}
\def\@getrarrow(#1,#2){\@tempcntb #2\relax
\ifnum\@tempcntb <\z@ \@tempcntb -\@tempcntb\relax\fi
\ifcase \@tempcntb\relax \@tempcnta 45  % '55
\or
\ifnum #1<\thr@@ \@tempcnta #1\relax\multiply\@tempcnta
24\advance\@tempcnta -6 \else \ifnum #1=\thr@@ \@tempcnta 49
\else\@tempcnta 58 \fi\fi\or
\ifnum #1<\thr@@ \@tempcnta=#1\relax\multiply\@tempcnta
24\advance\@tempcnta -\thr@@ \else \@tempcnta 51 \fi\or
\@tempcnta #1\relax\multiply\@tempcnta
\sixt@@n \advance\@tempcnta -\tw@ \else
\@tempcnta #1\relax\multiply\@tempcnta
\sixt@@n \advance\@tempcnta 7 \fi\ifnum #2<\z@ \advance\@tempcnta 64 \fi
\char\@tempcnta}
\def\@vline{\ifnum \@yarg <\z@ \@downline \else \@upline\fi}
\def\@upline{%
  \hb@xt@\z@{\hskip -\@halfwidth \vrule \@width \@wholewidth
   \@height \@linelen \@depth \z@\hss}}
\def\@downline{%
  \hb@xt@\z@{\hskip -\@halfwidth \vrule \@width \@wholewidth
   \@height \z@ \@depth \@linelen \hss}}
\def\@upvector{\@upline\setbox\@tempboxa\hbox{\@linefnt\char 54}% '66
  \raise \@linelen \hb@xt@\z@{\lower \ht\@tempboxa\box\@tempboxa\hss}}
\def\@downvector{\@downline\lower \@linelen
      \hb@xt@\z@{\@linefnt\char 63  % '77
      \hss}}
\def\dashbox#1(#2,#3){\leavevmode\hb@xt@\z@{\baselineskip \z@skip
\lineskip \z@skip
\@defaultunitsset\@dashdim{#2}\unitlength
\@dashcnt \@dashdim \advance\@dashcnt 200
\@defaultunitsset\@dashdim{#1}\unitlength
\divide\@dashcnt \@dashdim
\ifodd\@dashcnt\@dashdim \z@
\advance\@dashcnt \@ne \divide\@dashcnt \tw@
\else \divide\@dashdim \tw@ \divide\@dashcnt \tw@
\advance\@dashcnt \m@ne
\setbox\@dashbox \hbox{\vrule \@height \@halfwidth \@depth \@halfwidth
\@width \@dashdim}\put(0,0){\copy\@dashbox}%
\put(0,#3){\copy\@dashbox}%
\put(#2,0){\hskip-\@dashdim\copy\@dashbox}%
\put(#2,#3){\hskip-\@dashdim\box\@dashbox}%
\multiply\@dashdim \thr@@
\fi
\setbox\@dashbox \hbox{%
  \@defaultunitsset\@tempdimc{#1}\unitlength
  \vrule \@height \@halfwidth \@depth \@halfwidth \@width \@tempdimc
  \hskip\@tempdimc}%
\@tempcnta\z@
\put(0,0){\hskip\@dashdim \@whilenum \@tempcnta <\@dashcnt
\do{\copy\@dashbox\advance\@tempcnta \@ne }}\@tempcnta\z@
\put(0,#3){\hskip\@dashdim \@whilenum \@tempcnta <\@dashcnt
\do{\copy\@dashbox\advance\@tempcnta \@ne }}%
\@defaultunitsset\@dashdim{#3}\unitlength
\@dashcnt \@dashdim \advance\@dashcnt 200
\@defaultunitsset\@dashdim{#1}\unitlength
\divide\@dashcnt \@dashdim
\ifodd\@dashcnt \@dashdim \z@
\advance\@dashcnt \@ne \divide\@dashcnt \tw@
\else
\divide\@dashdim \tw@ \divide\@dashcnt \tw@
\advance\@dashcnt \m@ne
\setbox\@dashbox\hbox{\hskip -\@halfwidth
\vrule \@width \@wholewidth
\@height \@dashdim}\put(0,0){\copy\@dashbox}%
\put(#2,0){\copy\@dashbox}%
\put(0,#3){\lower\@dashdim\copy\@dashbox}%
\put(#2,#3){\lower\@dashdim\copy\@dashbox}%
\multiply\@dashdim \thr@@
\fi
\@defaultunitsset\@tempdimb{#1}\unitlength
\setbox\@dashbox\hbox{%
  \vrule \@width \@wholewidth \@height\@tempdimb}%
\@tempcnta\z@
\put(0,0){\hskip -\@halfwidth \vbox{\@whilenum \@tempcnta <\@dashcnt
\do{\vskip\@tempdimb\copy\@dashbox\advance\@tempcnta \@ne }%
\vskip\@dashdim}}\@tempcnta\z@
\put(#2,0){\hskip -\@halfwidth \vbox{\@whilenum \@tempcnta<\@dashcnt
\do{\vskip\@tempdimb\copy\@dashbox\advance\@tempcnta \@ne }%
\vskip\@dashdim}}}\@makepicbox(#2,#3)}
\newif\if@ovt
\newif\if@ovb
\newif\if@ovl
\newif\if@ovr
\newdimen\@ovxx
\newdimen\@ovyy
\newdimen\@ovdx
\newdimen\@ovdy
\newdimen\@ovro
\newdimen\@ovri
\def\@getcirc#1{\@tempdima #1\relax \advance\@tempdima 2\p@
  \@tempcnta\@tempdima
  \@tempdima 4\p@ \divide\@tempcnta\@tempdima
  \ifnum \@tempcnta >10\relax
      \@picture@warn
      \@tempcnta 10\relax
  \fi
  \ifnum \@tempcnta >\z@ \advance\@tempcnta\m@ne
    \else \@picture@warn \fi
  \multiply\@tempcnta 4\relax
  \setbox \@tempboxa \hbox{\@circlefnt
  \char \@tempcnta}\@tempdima \wd \@tempboxa}
\def\@picture@warn{\@latex@warning{%
     \string\oval, \string\circle, or \string\line\space
     size unavailable}}
\def\@put#1#2#3{\raise #2\hb@xt@\z@{\hskip #1#3\hss}}
\def\oval(#1,#2){\@ifnextchar[{\@oval(#1,#2)}{\@oval(#1,#2)[]}}
\newif\if@ovvline \@ovvlinetrue
\newif\if@ovhline \@ovhlinetrue
\def\@oval(#1,#2)[#3]{\begingroup\boxmaxdepth \maxdimen
  \@ovttrue \@ovbtrue \@ovltrue \@ovrtrue
  \@ovvlinefalse \@ovhlinefalse
  \@tfor\reserved@a :=#3\do{%
    \csname @ov\reserved@a false\endcsname}%
  \@defaultunitsset\@ovxx{#1}\unitlength
  \@defaultunitsset\@ovyy{#2}\unitlength
  \@tempdimb \ifdim \@ovyy >\@ovxx \@ovxx \@ovvlinetrue
  \else \@ovyy \ifdim \@ovyy =\@ovxx \else \@ovhlinetrue \fi\fi
  \advance \@tempdimb -2\p@
  \@getcirc \@tempdimb
  \@ovro \ht\@tempboxa \@ovri \dp\@tempboxa
  \@ovdx\@ovxx \advance\@ovdx -\@tempdima \divide\@ovdx \tw@
  \@ovdy\@ovyy \advance\@ovdy -\@tempdima \divide\@ovdy \tw@
  \ifdim \@ovdx >\z@ \@ovhlinetrue \fi
  \ifdim \@ovdy >\z@ \@ovvlinetrue \fi
  \@circlefnt \setbox\@tempboxa
  \hbox{\if@ovr \@ovvert32\kern -\@tempdima \fi
  \if@ovl \kern \@ovxx \@ovvert01\kern -\@tempdima \kern -\@ovxx \fi
  \if@ovt \@ovhorz \kern -\@ovxx \fi
  \if@ovb \raise \@ovyy \@ovhorz \fi}\advance\@ovdx\@ovro
  \advance\@ovdy\@ovro \ht\@tempboxa\z@ \dp\@tempboxa\z@
  \@put{-\@ovdx}{-\@ovdy}{\box\@tempboxa}%
  \endgroup}
\def\@ovvert#1#2{\vbox to\@ovyy{%
    \if@ovb \@tempcntb \@tempcnta \advance \@tempcntb #1\relax
      \kern -\@ovro \hbox{\char \@tempcntb}\nointerlineskip
    \else \kern \@ovri \kern \@ovdy \fi
    \if@ovvline \leaders\vrule \@width \@wholewidth \fi
    \vfil \nointerlineskip
    \if@ovt \@tempcntb \@tempcnta \advance \@tempcntb #2\relax
      \hbox{\char \@tempcntb}%
    \else \kern \@ovdy \kern \@ovro \fi}}
\def\@ovhorz{\hb@xt@\@ovxx{\kern \@ovro
    \if@ovr \else \kern \@ovdx \fi
    \if@ovhline \leaders \hrule \@height \@wholewidth \fi
    \hfil
    \if@ovl \else \kern \@ovdx \fi
    \kern \@ovri}}
\def\circle{\@inmatherr\circle\@ifstar\@dot\@circle}
\def\@circle#1{%
  \begingroup \boxmaxdepth \maxdimen
   \@defaultunitsset\@tempdimb{#1}\unitlength
   \ifdim \@tempdimb >15.5\p@ \@getcirc\@tempdimb
      \@ovro\ht\@tempboxa
     \setbox\@tempboxa\hbox{\@circlefnt
      \advance\@tempcnta\tw@ \char \@tempcnta
      \advance\@tempcnta\m@ne \char \@tempcnta \kern -2\@tempdima
      \advance\@tempcnta\tw@
      \raise \@tempdima \hbox{\char\@tempcnta}\raise \@tempdima
        \box\@tempboxa}\ht\@tempboxa\z@ \dp\@tempboxa\z@
      \@put{-\@ovro}{-\@ovro}{\box\@tempboxa}%
   \else  \@circ\@tempdimb{96}\fi\endgroup}
\def\@dot#1{%
  \@defaultunitsset\@tempdimb{#1}\unitlength
  \@circ\@tempdimb{112}}
\def\@circ#1#2{\@tempdima #1\relax \advance\@tempdima .5\p@
   \@tempcnta\@tempdima \@tempdima \p@
   \divide\@tempcnta\@tempdima
   \ifnum\@tempcnta >15\relax \@tempcnta 15\relax \fi
   \ifnum \@tempcnta >\z@ \advance\@tempcnta\m@ne\fi
   \advance\@tempcnta #2\relax
   \@circlefnt \char\@tempcnta}
\newcount\@xarg
\newcount\@yarg
\newcount\@yyarg
\newcount\@multicnt
\newdimen\@xdim
\newdimen\@ydim
\newbox\@linechar
\newdimen\@linelen
\newdimen\@clnwd
\newdimen\@clnht
\newdimen\@dashdim
\newbox\@dashbox
\newcount\@dashcnt
\let\@linefnt\tenln
\let\@circlefnt\tencirc
\@wholewidth\fontdimen8\tenln
\@halfwidth .5\@wholewidth
\def\qbeziermax{500}
\newcommand\qbezier[2][0]{\bezier{#1}#2}
\def\bezier#1)#2(#3)#4({\@bezier#1)(#3)(}
\def\@bezier#1(#2,#3)(#4,#5)(#6,#7){%
  \ifnum #1=\z@
      \@defaultunitsset\@ovxx{#4}\unitlength
        \@defaultunitsset{\advance\@ovxx}{-#2}\unitlength
        \ifdim \@ovxx<\z@ \@ovxx -\@ovxx \fi
      \@defaultunitsset\@ovdx{#6}\unitlength
        \@defaultunitsset{\advance\@ovdx}{-#4}\unitlength
        \ifdim \@ovdx<\z@ \@ovdx -\@ovdx \fi
        \ifdim \@ovxx<\@ovdx \@ovxx \@ovdx \fi
      \@defaultunitsset\@ovyy{#5}\unitlength
        \@defaultunitsset{\advance\@ovyy}{-#3}\unitlength
        \ifdim \@ovyy<\z@ \@ovyy -\@ovyy \fi
      \@defaultunitsset\@ovdy{#7}\unitlength
        \@defaultunitsset{\advance\@ovdy}{-#5}\unitlength
        \ifdim \@ovdy<\z@  \@ovdy -\@ovdy \fi
        \ifdim \@ovyy<\@ovdy \@ovyy  \@ovdy \fi
      \@multicnt
         \ifdim \@ovxx>\@ovyy \@ovxx \else \@ovyy \fi
      \@ovxx .5\@halfwidth \divide\@multicnt\@ovxx
      \ifnum \qbeziermax<\@multicnt
        \@multicnt\qbeziermax\relax
      \fi
  \else \@multicnt#1\relax \fi
  \@tempcnta\@multicnt \advance\@tempcnta\@ne
  \@defaultunitsset\@ovdx{#4}\unitlength
  \@defaultunitsset{\advance\@ovdx}{-#2}\unitlength
      \multiply\@ovdx \tw@
  \@defaultunitsset\@ovxx{#6}\unitlength
  \@defaultunitsset{\advance\@ovxx}{-#2}\unitlength
      \advance\@ovxx -\@ovdx \divide\@ovxx\@multicnt
  \@defaultunitsset\@ovdy{#5}\unitlength
  \@defaultunitsset{\advance\@ovdy}{-#3}\unitlength
       \multiply\@ovdy \tw@
  \@defaultunitsset\@ovyy{#7}\unitlength
  \@defaultunitsset{\advance\@ovyy}{-#3}\unitlength
      \advance\@ovyy -\@ovdy \divide\@ovyy\@multicnt
  \setbox\@tempboxa\hbox{%
            \hskip -\@halfwidth
            \vrule \@height\@halfwidth
                   \@depth \@halfwidth
                   \@width \@wholewidth}%
   \put(#2,#3){%
     \count@\z@
     \@whilenum{\count@<\@tempcnta}\do
        {\@xdim\count@\@ovxx
           \advance\@xdim\@ovdx
           \divide\@xdim\@multicnt
           \multiply\@xdim\count@
         \@ydim\count@\@ovyy
            \advance\@ydim\@ovdy
            \divide\@ydim\@multicnt
            \multiply\@ydim\count@
         \raise \@ydim
            \hb@xt@\z@{\kern\@xdim
                        \unhcopy\@tempboxa\hss}%
         \advance\count@\@ne}}}
\MakeRobust\bezier
\MakeRobust\circle
\MakeRobust\dashbox
\MakeRobust\line
\MakeRobust\linethickness
\MakeRobust\multiput
\MakeRobust\oval
\MakeRobust\put
\MakeRobust\qbezier
\MakeRobust\shortstack
\MakeRobust\thinlines
\MakeRobust\vector
%%% From File: ltthm.dtx
\def\newtheorem#1{%
  \@ifnextchar[{\@othm{#1}}{\@nthm{#1}}}
\def\@nthm#1#2{%
  \@ifnextchar[{\@xnthm{#1}{#2}}{\@ynthm{#1}{#2}}}
\def\@xnthm#1#2[#3]{%
  \expandafter\@ifdefinable\csname #1\endcsname
    {\@definecounter{#1}\@newctr{#1}[#3]%
     \expandafter\xdef\csname the#1\endcsname{%
       \expandafter\noexpand\csname the#3\endcsname \@thmcountersep
          \@thmcounter{#1}}%
     \global\@namedef{#1}{\@thm{#1}{#2}}%
     \global\@namedef{end#1}{\@endtheorem}}}
\def\@ynthm#1#2{%
  \expandafter\@ifdefinable\csname #1\endcsname
    {\@definecounter{#1}%
     \expandafter\xdef\csname the#1\endcsname{\@thmcounter{#1}}%
     \global\@namedef{#1}{\@thm{#1}{#2}}%
     \global\@namedef{end#1}{\@endtheorem}}}
\def\@othm#1[#2]#3{%
  \@ifundefined{c@#2}{\@nocounterr{#2}}%
    {\expandafter\@ifdefinable\csname #1\endcsname
    {\global\@namedef{the#1}{\@nameuse{the#2}}%
  \global\@namedef{#1}{\@thm{#2}{#3}}%
  \global\@namedef{end#1}{\@endtheorem}}}}
\def\@thm#1#2{%
  \@kernel@refstepcounter{#1}%
  \@ifnextchar[{\@ythm{#1}{#2}}{\@xthm{#1}{#2}}}
\def\@xthm#1#2{%
  \@begintheorem{#2}{\csname the#1\endcsname}\ignorespaces}
\def\@ythm#1#2[#3]{%
  \@opargbegintheorem{#2}{\csname the#1\endcsname}{#3}\ignorespaces}
\def\@thmcounter#1{\noexpand\arabic{#1}}
\def\@thmcountersep{.}
\def\@begintheorem#1#2{\trivlist
   \item[\MakeLinkTarget{\@currentcounter}\hskip \labelsep{\bfseries #1\ #2}]\itshape}
\def\@opargbegintheorem#1#2#3{\trivlist
      \item[\MakeLinkTarget{\@currentcounter}\hskip \labelsep{\bfseries #1\ #2\ (#3)}]\itshape}
\def\@endtheorem{\endtrivlist}
%%% From File: ltsect.dtx
\message{title,}
\DeclareRobustCommand\title[1]{\gdef\@title{#1}}
\DeclareRobustCommand*\author[1]{\gdef\@author{#1}}
\DeclareRobustCommand*\date[1]{\gdef\@date{#1}}
\DeclareRobustCommand\thanks[1]{\footnotemark
    \protected@xdef\@thanks{\@thanks
        \protect\footnotetext[\the\c@footnote]{#1}}%
}
\DeclareRobustCommand\and{%   % \begin{tabular}
  \end{tabular}%
  \hskip 1em \@plus.17fil%
  \begin{tabular}[t]{c}}%     % \end{tabular}
\def\@title{\@latex@error{No \noexpand\title given}\@ehc}
\def\@author{\@latex@warning@no@line{No \noexpand\author given}}
\gdef\@date{\today}
\let\@thanks\@empty
\message{sectioning,}
\newcount\@secpenalty
\@secpenalty = -300
\newif\if@noskipsec \@noskipsectrue
\def\@startsection#1#2#3#4#5#6{%
  \if@noskipsec \leavevmode \fi
  \par
  \@tempskipa #4\relax
  \@afterindenttrue
  \ifdim \@tempskipa <\z@
    \@tempskipa -\@tempskipa \@afterindentfalse
  \fi
  \if@nobreak
    \everypar{}%
  \else
    \addpenalty\@secpenalty\addvspace\@tempskipa
  \fi
  \@ifstar
    {\@ssect{#3}{#4}{#5}{#6}}%
    {\@dblarg{\@sect{#1}{#2}{#3}{#4}{#5}{#6}}}}
\def\@sect#1#2#3#4#5#6[#7]#8{%
  \ifnum #2>\c@secnumdepth
    \let\@svsec\@empty
  \else
    \refstepcounter{#1}%
    \protected@edef\@svsec{\@seccntformat{#1}\relax}%
  \fi
  \@tempskipa #5\relax
  \ifdim \@tempskipa>\z@
    \begingroup
      #6{%
        \@hangfrom{\hskip #3\relax\@svsec}%
          \interlinepenalty \@M #8\@@par}%
    \endgroup
    \csname #1mark\endcsname{#7}%
    \addcontentsline{toc}{#1}{%
      \ifnum #2>\c@secnumdepth \else
        \protect\numberline{\csname the#1\endcsname}%
      \fi
      #7}%
  \else
    \def\@svsechd{%
      #6{\hskip #3\relax
      \@svsec #8}%
      \csname #1mark\endcsname{#7}%
      \addcontentsline{toc}{#1}{%
        \ifnum #2>\c@secnumdepth \else
          \protect\numberline{\csname the#1\endcsname}%
        \fi
        #7}}%
  \fi
  \@xsect{#5}}
\def\@xsect#1{%
  \@tempskipa #1\relax
  \ifdim \@tempskipa>\z@
    \par \nobreak
    \vskip \@tempskipa
    \@afterheading
  \else
    \@nobreakfalse
    \global\@noskipsectrue
    \everypar{%
      \if@noskipsec
        \global\@noskipsecfalse
       {\setbox\z@\lastbox}%
        \clubpenalty\@M
        \begingroup \@svsechd \endgroup
        \unskip
        \@tempskipa #1\relax
        \hskip -\@tempskipa
      \else
        \clubpenalty \@clubpenalty
        \everypar{}%
      \fi}%
  \fi
  \ignorespaces}
\def\@seccntformat#1{\csname the#1\endcsname\quad}
\def\@ssect#1#2#3#4#5{%
  \@tempskipa #3\relax
  \ifdim \@tempskipa>\z@
    \begingroup
      #4{%
        \@hangfrom{\hskip #1}%
          \interlinepenalty \@M #5\@@par}%
    \endgroup
  \else
    \def\@svsechd{#4{\hskip #1\relax #5}}%
  \fi
  \@xsect{#3}}
\newif\if@afterindent \@afterindenttrue
\def\@afterheading{%
  \@nobreaktrue
  \everypar{%
    \if@nobreak
      \@nobreakfalse
      \clubpenalty \@M
      \if@afterindent \else
        {\setbox\z@\lastbox}%
      \fi
    \else
      \clubpenalty \@clubpenalty
      \everypar{}%
    \fi}}
\def\@hangfrom#1{\setbox\@tempboxa\hbox{{#1}}%
      \hangindent \wd\@tempboxa\noindent\box\@tempboxa}
\newcount\c@secnumdepth
\newcount\c@tocdepth
\def\secdef#1#2{\@ifstar{#2}{\@dblarg{#1}}}
\let\sectionmark\@gobble
\let\subsectionmark\@gobble
\let\subsubsectionmark\@gobble
\let\paragraphmark\@gobble
\let\subparagraphmark\@gobble
\message{contents,}
\def\@starttoc#1{%
  \begingroup
    \makeatletter
    \@input{\jobname.#1}%
    \if@filesw
      \expandafter\newwrite\csname tf@#1\endcsname
      \immediate\openout \csname tf@#1\endcsname \jobname.#1\relax
    \fi
    \@nobreakfalse
  \endgroup}
\def\addcontentsline#1#2#3{%
  \addtocontents{#1}{\protect\contentsline{#2}{#3}{\thepage}{}%
                     \protected@file@percent}}
\long\def\addtocontents#1#2{%
  \protected@write\@auxout
      {\let\label\@gobble \let\index\@gobble \let\glossary\@gobble}%
      {\string\@writefile{#1}{#2}}}
\def\contentsline#1#2#3#4{\gdef\@contentsline@destination{#4}%
                          \csname l@#1\endcsname{#2}{#3}}
\let\@contentsline@destination\@empty
\def\@dottedtocline#1#2#3#4#5{%
  \ifnum #1>\c@tocdepth \else
    \vskip \z@ \@plus.2\p@
    {\leftskip #2\relax \rightskip \@tocrmarg \parfillskip -\rightskip
     \parindent #2\relax\@afterindenttrue
     \interlinepenalty\@M
     \leavevmode
     \@tempdima #3\relax
     \advance\leftskip \@tempdima \null\nobreak\hskip -\leftskip
     {#4}\nobreak
     \leaders\hbox{$\m@th
        \mkern \@dotsep mu\hbox{.}\mkern \@dotsep
        mu$}\hfill
     \nobreak
     \hb@xt@\@pnumwidth{\hfil\normalfont \normalcolor #5%
                        \kern-\p@\kern\p@}%
     \par}%
  \fi}

\DeclareRobustCommand\noprotrusion{\leavevmode\kern-\p@\kern\p@}
\def\numberline#1{\hb@xt@\@tempdima{#1\hfil}}
%%% From File: ltfloat.dtx
\message{floats,}
\newcount\@floatpenalty
\def\caption{%
   \ifx\@captype\@undefined
     \@latex@error{\noexpand\caption outside float}\@ehd
     \expandafter\@gobble
   \else
     \refstepcounter\@captype
     \expandafter\@firstofone
   \fi
   {\@dblarg{\@caption\@captype}}%
}
\long\def\@caption#1[#2]#3{%
  \par
  \addcontentsline{\csname ext@#1\endcsname}{#1}%
    {\protect\numberline{\csname the#1\endcsname}{\ignorespaces #2}}%
  \begingroup
    \@parboxrestore
    \if@minipage
      \@setminipage
    \fi
    \normalsize
    \@makecaption{\csname fnum@#1\endcsname}{\ignorespaces #3}\par
  \endgroup}
\def\@float#1{%
  \@ifnextchar[%
    {\@xfloat{#1}}%
    {\edef\reserved@a{\noexpand\@xfloat{#1}[\csname fps@#1\endcsname]}%
     \reserved@a}}
\def\@dblfloat{%
  \if@twocolumn\let\reserved@a\@dbflt\else\let\reserved@a\@float\fi
  \reserved@a}
\def\@xfloat #1[#2]{%
  \@nodocument
  \def \@captype {#1}%
   \def \@fps {#2}%
   \@onelevel@sanitize \@fps
   \def \reserved@b {!}%
   \ifx \reserved@b \@fps
     \@fpsadddefault
   \else
     \ifx \@fps \@empty
       \@fpsadddefault
     \fi
   \fi
   \ifhmode
     \@bsphack
     \@floatpenalty -\@Mii
   \else
     \@floatpenalty-\@Miii
   \fi
  \ifinner
     \@parmoderr\@floatpenalty\z@
  \else
    \@next\@currbox\@freelist
      {%
       \@tempcnta \sixt@@n
       \expandafter \@tfor \expandafter \reserved@a
         \expandafter :\expandafter =\@fps
         \do
          {%
           \if \reserved@a h%
             \ifodd \@tempcnta
             \else
               \advance \@tempcnta \@ne
             \fi
           \else\if \reserved@a t%
             \@setfpsbit \tw@
           \else\if \reserved@a b%
             \@setfpsbit 4%
           \else\if \reserved@a p%
             \@setfpsbit 8%
           \else\if \reserved@a !%
             \ifnum \@tempcnta>15
               \advance\@tempcnta -\sixt@@n\relax
             \fi
           \else
             \@latex@error{Unknown float option `\reserved@a'}%
             {Option `\reserved@a' ignored and `p' used.}%
             \@setfpsbit 8%
           \fi\fi\fi\fi\fi
           }%
       \@tempcntb \csname ftype@\@captype \endcsname
       \multiply \@tempcntb \@xxxii
       \advance \@tempcnta \@tempcntb
       \global \count\@currbox \@tempcnta
       }%
    \@fltovf
  \fi
  \global \setbox\@currbox
    \color@vbox
      \normalcolor
      \vbox \bgroup
        \hsize\columnwidth
        \@parboxrestore
        \@floatboxreset
}%
\def \@floatboxreset {%
        \reset@font
        \normalsize
        \@setminipage
}
\def \@setnobreak{%
  \if@nobreak
    \let\outer@nobreak\@nobreaktrue
    \@nobreakfalse
  \fi
}
\def \@setminipage{%
  \@minipagetrue
  \everypar{\@minipagefalse\everypar{}}%
}
\def\end@float{%
  \@endfloatbox
  \ifnum\@floatpenalty <\z@
    \@largefloatcheck
    \@cons\@currlist\@currbox
    \ifnum\@floatpenalty <-\@Mii
      \penalty -\@Miv
      \@tempdima\prevdepth
      \vbox{}%
      \prevdepth\@tempdima
      \penalty\@floatpenalty
    \else
      \vadjust{\penalty -\@Miv \vbox{}\penalty\@floatpenalty}\@Esphack
    \fi
  \fi
}
\def\end@dblfloat{%
  \if@twocolumn
    \@endfloatbox
    \ifnum\@floatpenalty <\z@
      \@largefloatcheck
      \global\dp\@currbox1sp %
      \@cons\@currlist\@currbox
      \ifnum\@floatpenalty <-\@Mii
        \penalty -\@Miv
        \@tempdima\prevdepth
        \vbox{}%
        \prevdepth\@tempdima
        \penalty\@floatpenalty
      \else
        \vadjust{\penalty -\@Miv \vbox{}\penalty\@floatpenalty}\@Esphack
      \fi
    \fi
  \else
    \end@float
  \fi
}%
\def \@endfloatbox{%
      \par\vskip\z@skip      %% \par\vskip\z@ added 15 Dec 87
      \@minipagefalse
      \outer@nobreak
    \egroup                  %% end of vbox
  \color@endbox
}
\let\outer@nobreak\@empty
\def \@largefloatcheck{%
  \ifdim \ht\@currbox>\textheight
    \@tempdima -\textheight
    \advance \@tempdima \ht\@currbox
    \@latex@warning {Float too large for page by \the\@tempdima}%
    \ht\@currbox \textheight
  \fi
}
\def\@dbflt#1{\@ifnextchar[{\@xdblfloat{#1}}{\@xdblfloat{#1}[tp]}}
\def\@xdblfloat#1[#2]{%
  \@xfloat{#1}[#2]\hsize\textwidth\linewidth\textwidth}
\def\@floatplacement{\global\@topnum\c@topnumber
    % Textpage bit, global:
   \global\@toproom \topfraction\@colht
   \global\@botnum  \c@bottomnumber
   \global\@botroom \bottomfraction\@colht
   \global\@colnum  \c@totalnumber
    % Floatpage bit, local:
   \@fpmin   \floatpagefraction\@colht}
\def\@dblfloatplacement{\global\@dbltopnum\c@dbltopnumber
   \global\@dbltoproom \dbltopfraction\@colht
   \@textmin \@colht
   \advance \@textmin -\@dbltoproom
   \@fpmin \dblfloatpagefraction\textheight
   \@fptop \@dblfptop
   \@fpsep \@dblfpsep
   \@fpbot \@dblfpbot
   \def\f@depth{1sp}}%
\def\marginpar{%
  \ifhmode
    \@bsphack
    \@floatpenalty -\@Mii
  \else
    \@floatpenalty-\@Miii
  \fi
  \ifinner
    \@parmoderr
    \@floatpenalty\z@
  \else
    \@next\@currbox\@freelist{}{}%
    \@next\@marbox\@freelist{\global\count\@marbox\m@ne}%
       {\@floatpenalty\z@
        \@fltovf\def\@currbox{\@tempboxa}\def\@marbox{\@tempboxa}}%
  \fi
  \@ifnextchar [\@xmpar\@ympar}
\long\def\@xmpar[#1]#2{%
  \@savemarbox\@marbox{#1}%
  \@savemarbox\@currbox{#2}%
  \@xympar}
\long\def\@ympar#1{%
  \@savemarbox\@marbox{#1}%
  \global\setbox\@currbox\copy\@marbox
  \@xympar}
\long\def \@savemarbox #1#2{%
  \global\setbox #1%
    \color@vbox
      \vtop{%
        \hsize\marginparwidth
        \@parboxrestore
        \@marginparreset
        #2\par
        \@minipagefalse
        \outer@nobreak
        }%
    \color@endbox
}
\def \@marginparreset {%
        \reset@font
        \normalsize
        \@setminipage
}
\def \@xympar{%
  \ifnum\@floatpenalty <\z@\@cons\@currlist\@marbox\fi
  \setbox\@tempboxa
    \color@vbox
      \vbox \bgroup
  \end@float
  \@ignorefalse
  \@esphack
}
\def\reversemarginpar{\global\@mparbottom\z@ \@reversemargintrue}
\def\normalmarginpar{\global\@mparbottom\z@ \@reversemarginfalse}
\message{footnotes,}
\newinsert\footins
\skip\footins=\bigskipamount % space added when footnote is present
\count\footins=1000 % footnote magnification factor (1 to 1)
\dimen\footins=8in % maximum footnotes per page
\def\footnoterule{\kern-3\p@
  \hrule \@width 2in \kern 2.6\p@} % the \hrule is .4pt high
\@definecounter{footnote}
\def\thefootnote{\@arabic\c@footnote}
\@definecounter{mpfootnote}
\def\thempfootnote{{\itshape\@alph\c@mpfootnote}}
\def\@makefnmark{\hbox{\@textsuperscript{\normalfont\@thefnmark}}}
\DeclareRobustCommand*\textsuperscript[1]{%
  \@textsuperscript{\selectfont#1}}
\def\@textsuperscript#1{%
  {\m@th\ensuremath{^{\mbox{\fontsize\sf@size\sf@size#1}}}}}
\DeclareRobustCommand*\textsubscript[1]{%
  \@textsubscript{\selectfont#1}}%
\def\@textsubscript#1{%
  {\m@th\ensuremath{_{\mbox{\fontsize\sf@size\sf@size#1}}}}}
\newdimen\footnotesep
\def\footnote{\@ifnextchar[\@xfootnote{\stepcounter\@mpfn
     \protected@xdef\@thefnmark{\thempfn}%
     \@footnotemark\@footnotetext}}
\def\@xfootnote[#1]{%
   \begingroup
     \csname c@\@mpfn\endcsname #1\relax
     \unrestored@protected@xdef\@thefnmark{\thempfn}%
   \endgroup
   \@footnotemark\@footnotetext}
\long\def\@footnotetext#1{\insert\footins{%
    \reset@font\footnotesize
    \interlinepenalty\interfootnotelinepenalty
    \splittopskip\footnotesep
    \splitmaxdepth \dp\strutbox \floatingpenalty \@MM
    \hsize\columnwidth \@parboxrestore
    \def\@currentcounter{footnote}%
    \protected@edef\@currentlabel{%
       \csname p@footnote\endcsname\@thefnmark
    }%
    \color@begingroup
      \@makefntext{%
        \rule\z@\footnotesep\ignorespaces#1\@finalstrut\strutbox}%
    \par
    \color@endgroup}}%
\def\footnotemark{%
   \@ifnextchar[\@xfootnotemark
     {\stepcounter{footnote}%
      \protected@xdef\@thefnmark{\thefootnote}%
      \@footnotemark}}
\def\@xfootnotemark[#1]{%
   \begingroup
      \c@footnote #1\relax
      \unrestored@protected@xdef\@thefnmark{\thefootnote}%
   \endgroup
   \@footnotemark}
\def\@footnotemark{%
  \leavevmode
  \ifhmode\edef\@x@sf{\the\spacefactor}\nobreak\fi
  \@makefnmark
  \ifhmode\spacefactor\@x@sf\fi
  \relax}
\def\footnotetext{%
     \@ifnextchar [\@xfootnotenext
       {\protected@xdef\@thefnmark{\thempfn}%
    \@footnotetext}}
\def\@xfootnotenext[#1]{%
  \begingroup
     \csname c@\@mpfn\endcsname #1\relax
     \unrestored@protected@xdef\@thefnmark{\thempfn}%
  \endgroup
  \@footnotetext}
\def\@mpfn{footnote}
\def\thempfn{\thefootnote}
\def\footref#1{%
  \begingroup
    \unrestored@protected@xdef\@thefnmark{\ref{#1}}%
  \endgroup
  \@footnotemark
}
%%% From File: ltidxglo.dtx
\message{index,}
\def\makeindex{%
  \newwrite\@indexfile
  \immediate\openout\@indexfile=\jobname.idx
  \def\index{\@bsphack\begingroup
             \@sanitize
             \@wrindex}\typeout
    {Writing index file \jobname.idx}%
  \let\makeindex\@empty
}
\@onlypreamble\makeindex
\def\@wrindex#1{%
   \protected@write\@indexfile{}%
      {\string\indexentry{#1}{\thepage}}%
 \endgroup
 \@esphack}
\def\index{\@bsphack\begingroup \@sanitize\@index}
\def\@index#1{\endgroup\@esphack}
\def\makeglossary{%
  \newwrite\@glossaryfile
  \immediate\openout\@glossaryfile=\jobname.glo
  \def\glossary{\@bsphack\begingroup
                \@sanitize
                \@wrglossary}\typeout
    {Writing glossary file \jobname.glo }%
  \let\makeglossary\@empty
}
\@onlypreamble\makeglossary
\def\@wrglossary#1{%
   \protected@write\@glossaryfile{}%
      {\string\glossaryentry{#1}{\thepage}}%
 \endgroup
 \@esphack}
\def\glossary{\@bsphack\begingroup\@sanitize\@index}
%%% From File: ltbibl.dtx
\message{bibliography,}
\def\bibitem{\@ifnextchar[\@lbibitem\@bibitem}
\def\@lbibitem[#1]#2{\item[\@biblabel{#1}\hfill]\if@filesw
      {\let\protect\noexpand
       \immediate
       \write\@auxout{\string\bibcite{#2}{#1}}}\fi\ignorespaces}
\def\@bibitem#1{\item\if@filesw \immediate\write\@auxout
       {\string\bibcite{#1}{\the\value{\@listctr}}}\fi\ignorespaces}
\def\bibcite{\@newl@bel b}
\let\citation\@gobble
\DeclareRobustCommand\cite{%
  \@ifnextchar [{\@tempswatrue\@citex@checkblank}{\@tempswafalse\@citex@checkblank[]}}
\def\@citex@checkblank[#1]#2{%
   \IfBlankTF {#2}%
     {\@citex[#1]{\space}}%
     {\@citex[#1]{#2}}%
}
\def\@citex[#1]#2{\leavevmode
  \let\@citea\@empty
  \@cite{\@for\@citeb:=#2\do
    {\@citea\def\@citea{,\penalty\@m\ }%
     \edef\@citeb{\expandafter\@firstofone\@citeb\@empty}%
     \if@filesw\immediate\write\@auxout{\string\citation{\@citeb}}\fi
     \@ifundefined{b@\@citeb}{\hbox{\reset@font\bfseries ?}%
       \G@refundefinedtrue
       \@latex@warning
         {Citation `\@citeb' on page \thepage \space undefined}}%
       {\@cite@ofmt{\csname b@\@citeb\endcsname}}}}{#1}}
\let\bibdata=\@gobble
\let\bibstyle=\@gobble
\def\bibliography#1{%
  \if@filesw
    \immediate\write\@auxout{\string\bibdata{\zap@space#1 \@empty}}%
  \fi
  \@input@{\jobname.bbl}}
\def\bibliographystyle#1{%
  \ifx\@begindocumenthook\@undefined\else
    \expandafter\AtBeginDocument
  \fi
    {\if@filesw
       \immediate\write\@auxout{\string\bibstyle{#1}}%
     \fi}}
\def\nocite#1{\@bsphack
  \ifx\@onlypreamble\document
    \@for\@citeb:=#1\do{%
      \edef\@citeb{\expandafter\@firstofone\@citeb}%
      \if@filesw\immediate\write\@auxout{\string\citation{\@citeb}}\fi
      \@ifundefined{b@\@citeb}{\G@refundefinedtrue
          \@latex@warning{Citation `\@citeb' undefined}}{}}%
  \else
    \AddToHook{begindocument/end}[kernel]{\nocite{#1}}%
  \fi
  \@esphack}
\expandafter\let\csname b@*\endcsname\@empty
\def\@cite#1#2{[{#1\if@tempswa , #2\fi}]}
\let\@cite@ofmt\hbox
\def\@biblabel#1{[#1]}
%% File: ltmarks.dtx
%% Copyright (C) 2022-2025
%% Frank Mittelbach, The LaTeX Project
%%% From File: ltmarks.dtx

\ExplSyntaxOn
\seq_new:N \g__mark_classes_seq
\cs_new_protected:Npn \mark_new_class:n #1
{
  \seq_if_in:NnTF \g__mark_classes_seq {#1}
      {
        \msg_error:nnn { mark } { class-already-defined }
          {#1}
      }
      { \__mark_new_class:nn {#1} }
}
\@onlypreamble \mark_new_class:n
\cs_new_protected:Npn \__mark_new_class:nn #1
{
  \__mark_debug:n { \iow_term:x { Marks:~new~mark:~#1~\msg_line_context: } }
  \exp_args:Nc \newmarks {c__mark_class_ #1 _mark}
  \seq_gput_right:Nn \g__mark_classes_seq {#1}
  \tl_new:c   { g__mark_page_top_   #1 _tl }
  \tl_new:c   { g__mark_page_first_ #1 _tl }
  \tl_new:c   { g__mark_page_last_  #1 _tl }
  \tl_new:c   { g__mark_previous-page_top_   #1 _tl }
  \tl_new:c   { g__mark_previous-page_first_ #1 _tl }
  \tl_new:c   { g__mark_previous-page_last_  #1 _tl }
  \tl_new:c   { g__mark_column_top_   #1 _tl }
  \tl_new:c   { g__mark_column_first_ #1 _tl }
  \tl_new:c   { g__mark_column_last_  #1 _tl }
  \tl_new:c   { g__mark_previous-column_top_   #1 _tl }
  \tl_new:c   { g__mark_previous-column_first_ #1 _tl }
  \tl_new:c   { g__mark_previous-column_last_  #1 _tl }
  \tl_new:c   { g__mark_first-column_top_   #1 _tl }
  \tl_new:c   { g__mark_first-column_first_ #1 _tl }
  \tl_new:c   { g__mark_first-column_last_  #1 _tl }
  \tl_new:c   { g__mark_last-column_top_    #1 _tl }
  \tl_new:c   { g__mark_last-column_first_  #1 _tl }
  \tl_new:c   { g__mark_last-column_last_   #1 _tl }
  \tl_set:cn   { g__mark_page_top_   #1 _tl }{ \__mark_id:n{0} }
  \tl_set:cn   { g__mark_page_first_ #1 _tl }{ \__mark_id:n{0} }
  \tl_set:cn   { g__mark_page_last_  #1 _tl }{ \__mark_id:n{0} }
  \tl_set:cn   { g__mark_previous-page_top_   #1 _tl }{ \__mark_id:n{0} }
  \tl_set:cn   { g__mark_previous-page_first_ #1 _tl }{ \__mark_id:n{0} }
  \tl_set:cn   { g__mark_previous-page_last_  #1 _tl }{ \__mark_id:n{0} }
  \tl_set:cn   { g__mark_column_top_   #1 _tl }{ \__mark_id:n{0} }
  \tl_set:cn   { g__mark_column_first_ #1 _tl }{ \__mark_id:n{0} }
  \tl_set:cn   { g__mark_column_last_  #1 _tl }{ \__mark_id:n{0} }
  \tl_set:cn   { g__mark_previous-column_top_   #1 _tl }{ \__mark_id:n{0} }
  \tl_set:cn   { g__mark_previous-column_first_ #1 _tl }{ \__mark_id:n{0} }
  \tl_set:cn   { g__mark_previous-column_last_  #1 _tl }{ \__mark_id:n{0} }
  \tl_set:cn   { g__mark_first-column_top_   #1 _tl }{ \__mark_id:n{0} }
  \tl_set:cn   { g__mark_first-column_first_ #1 _tl }{ \__mark_id:n{0} }
  \tl_set:cn   { g__mark_first-column_last_  #1 _tl }{ \__mark_id:n{0} }
  \tl_set:cn   { g__mark_last-column_top_    #1 _tl }{ \__mark_id:n{0} }
  \tl_set:cn   { g__mark_last-column_first_  #1 _tl }{ \__mark_id:n{0} }
  \tl_set:cn   { g__mark_last-column_last_   #1 _tl }{ \__mark_id:n{0} }
}
\box_new:N \l__mark_box
\box_new:N \l__mark_ii_box
\tl_new:N  \g__mark_tmp_tl
\tl_new:N  \g__mark_new_top_tl
\cs_new_protected:Npn \__mark_extract_and_handle_marks:nn #1#2 {
    \group_begin:
      \dim_set_eq:NN \tex_splitmaxdepth:D \c_max_dim
      \int_set_eq:NN \tex_vbadness:D      \c_max_int
      \dim_set_eq:NN \tex_vfuzz:D         \c_max_dim
      \__mark_prepare_and_extract:nn {#1} {#2}
    \group_end:
  }
\cs_new_protected:Npn \__mark_prepare_and_extract:nn #1#2 {
  \vbox_set:Nn \l__mark_box
    {
      #2
      \tex_unskip:D
      \box_set_to_last:N \l__mark_box
      \int_compare:nNnT \tex_lastnodetype:D < 0
        {
          \box_if_vertical:NT \l__mark_box
            { \vbox_unpack:N \l__mark_box }
        }
    }
    \__mark_vbox_set_split_to_maxdimen:NN \l__mark_ii_box \l__mark_box
    \box_if_empty:NTF \l__mark_box
      { #1 }
      {
        \__mark_debug:n { \iow_term:x
          { Marks:~ mark~ extraction~needs~ recursion~
            \msg_line_context: } }
        \__mark_prepare_and_extract:nn {#1}
           { \vbox_unpack:N \l__mark_ii_box
             \vbox_unpack:N \l__mark_box    }
      }
}
\cs_set_eq:cN {Infinite~shrink~error~above~ignored~!}\c_max_dim
\cs_new_protected:Npx \__mark_vbox_set_split_to_maxdimen:NN #1#2 {
  \tl_set:Ne \exp_not:N \l__mark_saved_parameters_tl
     {
       \tex_interactionmode:D
          \exp_not:N \int_use:N \tex_interactionmode:D \scan_stop:
       \tex_escapechar:D
          \exp_not:N \int_use:N \tex_escapechar:D \scan_stop:
     }
  \tex_escapechar:D     -1 \scan_stop:
  \tex_interactionmode:D 0 \scan_stop:
  \tex_setbox:D #1 \tex_vsplit:D #2 to
      \exp_not:N \use:n {
        \use:c{Infinite~shrink~error~above~ignored~!}
      }
  \exp_not:N \l__mark_saved_parameters_tl
}
\tl_new:N \l__mark_saved_parameters_tl
\cs_new_protected:Npn \__mark_update_structure_from_material:nn #1#2 {
  \__mark_extract_and_handle_marks:nn
     { \__mark_update_structure_from_splitmarks:n {#1} }
     { #2 }
}
\cs_new_protected:Npn \__mark_update_structure_from_splitmarks:n #1 {
  \__mark_update_structure_alias:nn { previous-#1 } {#1}
  \seq_map_inline:Nn \g__mark_classes_seq
            {
              \tl_gset_eq:Nc \g__mark_new_top_tl { g__mark_#1_last_##1_tl }
              \tl_gset_eq:cN { g__mark_#1_top_##1_tl } \g__mark_new_top_tl
              \tl_gset:No \g__mark_tmp_tl
                { \tex_splitbotmarks:D \use:c { c__mark_class_##1_mark } }
              \tl_if_empty:NTF \g__mark_tmp_tl
                {
                  \tl_gset_eq:cN { g__mark_#1_last_ ##1_tl }
                    \g__mark_new_top_tl
                  \tl_gset_eq:cN { g__mark_#1_first_##1_tl }
                    \g__mark_new_top_tl
                }
                {
                  \tl_gset_eq:cN { g__mark_#1_last_##1_tl } \g__mark_tmp_tl
                  \tl_gset:co { g__mark_#1_first_##1_tl }
                    {
                      \tex_splitfirstmarks:D
                        \use:c { c__mark_class_##1_mark }
                    }
                }
            }
}
\cs_new_protected:Npn \__mark_get_marks_for_reinsertion:nNN #1#2#3 {
  \tl_clear:N \g__mark_first_marks_tl
  \tl_clear:N \g__mark_last_marks_tl
  \__mark_extract_and_handle_marks:nn
     \__mark_get_from_splitmarks:
     { #1 }
  \tl_set_eq:NN #2 \g__mark_first_marks_tl
  \tl_set_eq:NN #3 \g__mark_last_marks_tl
}
\cs_new_protected:Npn  \__mark_get_from_splitmarks:  {
  \seq_map_inline:Nn \g__mark_classes_seq
            {
              \tl_gset:No \g__mark_tmp_tl
                { \tex_splitbotmarks:D \use:c { c__mark_class_##1_mark } }

              \tl_if_empty:NTF \g__mark_tmp_tl
                {
                  \__mark_debug:n { \iow_term:x { Marks:~no~ marks~
                      for~ class~ '##1'~\msg_line_context: } }
                }
                {
                  \__mark_debug:n { \iow_term:x { Marks:~ extract~ last~
                       mark~ for~ class~ '##1'~ =~  \g__mark_tmp_tl } }
                  \tl_gput_right:Ne \g__mark_last_marks_tl
                     { \mark_insert:nn {##1} { \g__mark_tmp_tl } }
                  \__mark_debug:n { \iow_term:x { Marks:~ extract~ first~
                      mark~ for~ class~ '##1'~ =~
                      \tex_splitfirstmarks:D
                        \use:c { c__mark_class_##1_mark }
                  } }
                  \tl_gput_right:Ne \g__mark_first_marks_tl
                     { \mark_insert:nn {##1}
                       {
                         \tex_splitfirstmarks:D
                         \use:c { c__mark_class_##1_mark }
                       }
                     }
                }
            }
}
\tl_new:N  \g__mark_first_marks_tl
\tl_new:N  \g__mark_last_marks_tl
\cs_new_protected:Npn \__mark_update_structure_alias:nn #1#2 {
  \seq_map_inline:Nn \g__mark_classes_seq
    {
      \tl_gset_eq:cc { g__mark_ #1 _top_   ##1 _tl }
                     { g__mark_ #2 _top_   ##1 _tl }
      \tl_gset_eq:cc { g__mark_ #1 _first_ ##1 _tl }
                     { g__mark_ #2 _first_ ##1 _tl }
      \tl_gset_eq:cc { g__mark_ #1 _last_  ##1 _tl }
                     { g__mark_ #2 _last_  ##1 _tl }
    }
}
\cs_new_protected:Npn \__mark_update_structure_to_err:n #1 {
  \seq_map_inline:Nn \g__mark_classes_seq
      {
        \tl_gset:cn { g__mark_ #1 _top_   ##1 _tl } { \__mark_error:n {#1} }
        \tl_gset:cn { g__mark_ #1 _first_ ##1 _tl } { \__mark_error:n {#1} }
        \tl_gset:cn { g__mark_ #1 _last_  ##1 _tl } { \__mark_error:n {#1} }
      }
}
\cs_new_protected:Npn \__mark_error:n #1 {
  \msg_error:nnn { mark } { invalid-use } {#1}
}
\cs_new_protected:Npn \mark_insert:nn #1#2
{
  \seq_if_in:NnTF \g__mark_classes_seq {#1}
      {
        \group_begin:
          \@kernel@before@insertmark
          \hook_use:n { insertmark }
          \unrestored@protected@xdef \g__mark_tmp_tl
               {
                 \__mark_id:n{ \int_use:N\g__mark_int }
                 #2
               }
          \__mark_debug:n{ \iow_term:x { Marks:~ set~#1~<-~
              '\tl_to_str:V \g__mark_tmp_tl' ~ \msg_line_context: } }
          \tex_marks:D \use:c { c__mark_class_ #1 _mark }
            {
              \exp_not:o { \g__mark_tmp_tl }
            }
        \group_end:
        \if@nobreak\ifvmode\nobreak\fi\fi
      }
      {
        \msg_error:nnx { mark } { unknown-class }
          { \tl_to_str:n {#1} }
      }
}
\cs_new_protected:Npn \__mark_id:n #1 { }
\int_new:N \g__mark_int
\cs_new:Npn \@kernel@before@insertmark {
          \cs_set_eq:NN \label    \scan_stop:
          \cs_set_eq:NN \index    \scan_stop:
          \cs_set_eq:NN \glossary \scan_stop:
          \int_compare:nNnTF \g__mark_int < {99999}
              { \int_gincr:N \g__mark_int }
              { \int_gzero:N \g__mark_int }

}
\hook_new:n {insertmark}
\cs_new:Npn \mark_use_first:nn #1#2 { \__mark_use:v { g__mark_#1_first_#2_tl } }
\cs_new:Npn \mark_use_last:nn #1#2  { \__mark_use:v { g__mark_#1_last_#2_tl }  }
\cs_new:Npn \mark_use_top:nn #1#2   { \__mark_use:v { g__mark_#1_top_#2_tl }   }
\cs_new:Npn \__mark_use:n #1 { \exp_not:o { \use_none:nn #1 } }
\cs_generate_variant:Nn \__mark_use:n { v }
\prg_new_conditional:Npnn \mark_if_eq:nnnn #1#2#3#4 { T , F , TF }
{
  \tl_if_eq:ccTF { g__mark_ #1 _#3_ #2 _tl }
                 { g__mark_ #1 _#4_ #2 _tl }
                 \prg_return_true:
                 \prg_return_false:
}
\prg_new_conditional:Npnn \mark_if_eq:nnnnnn #1#2#3#4#5#6 { T , F , TF }
{
  \tl_if_eq:ccTF { g__mark_ #1 _#3_ #2 _tl }
                 { g__mark_ #4 _#6_ #5 _tl }
                 \prg_return_true:
                 \prg_return_false:
}
\prop_gput:Nnn \g_msg_module_type_prop { mark } { LaTeX }
\msg_new:nnnn { mark } { class-already-defined }
  { Mark~class~'#1'~already~defined }
  {
    \c__msg_coding_error_text_tl
    LaTeX~was~asked~to~define~a~new~mark~class~called~'#1':~
    this~mark~class~already~exists.
    \c__msg_return_text_tl
  }
\msg_new:nnnn { mark } { unknown-class }
  { Unknown~mark~class~'#1'. }
  {
    \c__msg_coding_error_text_tl
    LaTeX~was~asked~to~manipulate~a~mark~of~class~'#1',~
    but~this~class~of~marks~does~not~exist.
  }

\msg_new:nnnn { mark } { invalid-use }
  { Mark~region~'#1'~not ~usable }
  {
    \c__msg_coding_error_text_tl
    The~region~'#1'~can~only~be~used~after~
    all~columns~have~been~assembled.
    \c__msg_return_text_tl
  }
\bool_new:N \g__mark_debug_bool
\cs_new_eq:NN \__mark_debug:n \use_none:n
\cs_new_protected:Npn \mark_debug_on:
  {
    \bool_gset_true:N \g__mark_debug_bool
    \__mark_debug_gset:
  }
\cs_new_protected:Npn \mark_debug_off:
  {
    \bool_gset_false:N \g__mark_debug_bool
    \__mark_debug_gset:
  }
\cs_new_protected:Npn \__mark_debug_gset:
  {
    \cs_gset_protected:Npx \__mark_debug:n ##1
      { \bool_if:NT \g__mark_debug_bool {##1} }
  }
\cs_new_eq:NN \DebugMarksOn   \mark_debug_on:
\cs_new_eq:NN \DebugMarksOff  \mark_debug_off:
\cs_new_protected:Npn \__mark_class_status:nn #1#2
   {
           \typeout{ Marks:~#2~ #1:}
           \typeout{\@spaces page~ (current):
             | \exp_not:v { g__mark_page_top_ #2 _tl }
             | \exp_not:v { g__mark_page_first_ #2 _tl }
             | \exp_not:v { g__mark_page_last_ #2 _tl }     |}
           \typeout{\@spaces page~ (previous):
             | \exp_not:v { g__mark_previous-page_top_ #2 _tl }
             | \exp_not:v { g__mark_previous-page_first_ #2 _tl }
             | \exp_not:v { g__mark_previous-page_last_ #2 _tl }     |}
           \typeout{\@spaces column~ (previous):
             | \exp_not:v { g__mark_previous-column_top_ #2 _tl }
             | \exp_not:v { g__mark_previous-column_first_ #2 _tl }
             | \exp_not:v { g__mark_previous-column_last_ #2 _tl }     |}
           \typeout{\@spaces column~ (current):
             | \exp_not:v { g__mark_column_top_ #2 _tl }
             | \exp_not:v { g__mark_column_first_ #2 _tl }
             | \exp_not:v { g__mark_column_last_ #2 _tl }     |}
           \typeout{\@spaces column~ (first):
             | \exp_not:v { g__mark_first-column_top_ #2 _tl }
             | \exp_not:v { g__mark_first-column_first_ #2 _tl }
             | \exp_not:v { g__mark_first-column_last_ #2 _tl }     |}
           \typeout{\@spaces column~ (second):
             | \exp_not:v { g__mark_last-column_top_ #2 _tl }
             | \exp_not:v { g__mark_last-column_first_ #2 _tl }
             | \exp_not:v { g__mark_last-column_last_ #2 _tl }     |}
}
\cs_new_protected:Npn \__mark_status:n #1
  {
    \seq_map_inline:Nn \g__mark_classes_seq
      { \__mark_class_status:nn {#1} {##1} }
  }
\cs_new_protected:Npn \ShowMarksAt #1 {
     \__mark_debug:n { \__mark_status:n {#1} }
}
\cs_new_eq:NN  \NewMarkClass \mark_new_class:n
\@onlypreamble \NewMarkClass
\cs_new_eq:NN \InsertMark  \mark_insert:nn
\NewExpandableDocumentCommand \FirstMark { O{page} m }
                    { \mark_use_first:nn {#1}{#2} }
\NewExpandableDocumentCommand \LastMark { O{page} m }
                    { \mark_use_last:nn {#1}{#2} }
\NewExpandableDocumentCommand \TopMark { O{page} m }
                    { \mark_use_top:nn {#1}{#2} }
\NewExpandableDocumentCommand \IfMarksEqualTF {O{page}mmm} {
  \mark_if_eq:nnnnTF {#1}{#2}{#3}{#4}
}
\NewExpandableDocumentCommand \IfMarksEqualT {O{page}mmm} {
  \mark_if_eq:nnnnT {#1}{#2}{#3}{#4}
}
\NewExpandableDocumentCommand \IfMarksEqualF {O{page}mmm} {
  \mark_if_eq:nnnnF {#1}{#2}{#3}{#4}
}
\cs_new_protected:Npn \__mark_update_singlecol_structures: {
  \box_if_vertical:NTF \@outputbox
      {
        \__mark_update_structure_from_material:nn {page}
           { \vbox_unpack:N  \@outputbox }
      }
      {
        \__mark_update_structure_from_material:nn {page}
           { \hbox_unpack:N  \@outputbox }
      }
  \__mark_update_structure_alias:nn {previous-column}{previous-page}
  \__mark_update_structure_alias:nn {column}{page}
  \__mark_update_structure_alias:nn {first-column}{page}
  \__mark_update_structure_alias:nn {last-column}{page}
     \__mark_debug:n
         {
           \__mark_status:n
                { in~ OR~ (
                  \legacy_if:nTF {@twoside}
                         { twoside-
                           \int_if_odd:nTF \c@page
                               { odd }{ even }
                         }
                         { oneside }
                         )
                }
         }
}
\cs_new_protected:Npn \__mark_update_dblcol_structures: {
  \box_if_vertical:NTF \@outputbox
      {
        \__mark_update_structure_from_material:nn {column}
           { \vbox_unpack:N  \@outputbox }
      }
      {
        \__mark_update_structure_from_material:nn {column}
           { \hbox_unpack:N  \@outputbox }
      }
  \legacy_if:nTF {@firstcolumn}
    {
      \__mark_update_structure_alias:nn {first-column}{column}
      \__mark_update_structure_to_err:n {last-column}
    }
    {
      \__mark_update_structure_alias:nn {last-column}{column}
      \seq_map_inline:Nn \g__mark_classes_seq
        {
          \tl_gset_eq:cc { g__mark_previous-page_top_   ##1 _tl }
                         { g__mark_page_top_            ##1 _tl }
          \tl_gset_eq:cc { g__mark_previous-page_first_ ##1 _tl }
                         { g__mark_page_first_          ##1 _tl }
          \tl_gset_eq:cc { g__mark_previous-page_last_  ##1 _tl }
                         { g__mark_page_last_           ##1 _tl }
          \tl_gset_eq:cc { g__mark_page_top_           ##1 _tl }
                         { g__mark_first-column_top_   ##1 _tl }

          \tl_if_eq:ccTF { g__mark_first-column_top_   ##1 _tl }
                         { g__mark_first-column_first_ ##1 _tl }
             {
               \tl_gset_eq:cc { g__mark_page_first_        ##1 _tl }
                              { g__mark_last-column_first_ ##1 _tl }
             }
             {
               \tl_gset_eq:cc { g__mark_page_first_         ##1 _tl }
                              { g__mark_first-column_first_ ##1 _tl }
             }
          \tl_gset_eq:cc { g__mark_page_last_        ##1 _tl }
                         { g__mark_last-column_last_ ##1 _tl }
        }
    }
     \__mark_debug:n
         {
           \__mark_status:n
              { in~ OR~ (
                \legacy_if:nTF {@twoside}
                       { twoside-
                         \int_if_odd:nTF \c@page
                             { odd }{ even }
                       }
                       { oneside }
                       \space
                       \legacy_if:nTF {@firstcolumn}
                              { first~ }{ second~ }
                              column )
              }
         }
}
\cs_new_eq:NN  \@expl@@@mark@update@singlecol@structures@@
               \__mark_update_singlecol_structures:
\cs_new_eq:NN  \@expl@@@mark@update@dblcol@structures@@
               \__mark_update_dblcol_structures:
\ExplSyntaxOff
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% From File: ltpage.dtx
\def\pagestyle#1{%
  \@ifundefined{ps@#1}%
    \undefinedpagestyle
    {\@nameuse{ps@#1}}}
\def\thispagestyle#1{%
  \@ifundefined{ps@#1}%
    \undefinedpagestyle
    {\global\@specialpagetrue\gdef\@specialstyle{#1}}}
\def\ps@empty{%
  \let\@mkboth\@gobbletwo\let\@oddhead\@empty\let\@oddfoot\@empty
  \let\@evenhead\@empty\let\@evenfoot\@empty}
\def\ps@plain{\let\@mkboth\@gobbletwo
     \let\@oddhead\@empty\def\@oddfoot{\reset@font\hfil\thepage
     \hfil}\let\@evenhead\@empty\let\@evenfoot\@oddfoot}
\let\@leftmark\@firstoftwo
\let\@rightmark\@secondoftwo
\ExplSyntaxOn
\DeclareRobustCommand*\markboth[2]{%
  \begingroup
    \let\label\relax \let\index\relax \let\glossary\relax
    \unrestored@protected@xdef\@themark {{#1}{#2}}%
    \@temptokena \expandafter{\@themark}%
    \mark_insert:nn{2e-left}{#1}
    \mark_insert:nn{2e-right}{#2}
    \tl_if_empty:nF{#2}{ \mark_insert:nn{2e-right-nonempty}{#2} }
    \mark{\the\@temptokena}%
  \endgroup
  \if@nobreak\ifvmode\nobreak\fi\fi}
\DeclareRobustCommand*\markright[1]{%
  \begingroup
    \let\label\relax \let\index\relax \let\glossary\relax
    \expandafter\@markright\@themark {#1}%
    \@temptokena \expandafter{\@themark}%
    \mark_insert:nn{2e-right}{#1}
    \tl_if_empty:nF{#1}{ \mark_insert:nn{2e-right-nonempty}{#1} }
    \mark{\the\@temptokena}%
  \endgroup
  \if@nobreak\ifvmode\nobreak\fi\fi}
\ExplSyntaxOff
\def\@markright#1#2#3{\@temptokena {#1}%
  \unrestored@protected@xdef\@themark{{\the\@temptokena}{#3}}}
\def\leftmark{\expandafter\@leftmark\botmark\@empty\@empty}
\def\rightmark{\expandafter\@rightmark\firstmark\@empty\@empty}
\def\@themark{{}{}}
\DeclareRobustCommand\raggedbottom{%
  \def\@textbottom{\vskip \z@ \@plus.0001fil}\let\@texttop\relax}
\DeclareRobustCommand\flushbottom{%
  \let\@textbottom\relax \let\@texttop\relax}
\DeclareRobustCommand\sloppy{%
  \tolerance 9999%
  \emergencystretch 3em%
  \hfuzz .5\p@
  \vfuzz\hfuzz}
\def\sloppypar{\par\sloppy}
\def\endsloppypar{\par}
\DeclareRobustCommand\fussy{%
  \emergencystretch\z@
  \tolerance 200%
  \hfuzz .1\p@
  \vfuzz\hfuzz}
\overfullrule 0pt
%%% From File: ltclass.dtx

\newif\if@compatibility
\def\@documentclasshook{%
   \ifx\@normalsize\@undefined
      \let\@normalsize\normalsize
   \fi
}
\let\@declaredoptions\@empty
\let\@classoptionslist\relax
\let\@raw@classoptionslist\relax
\let\@unusedoptionlist\@empty
\let\CurrentOption\@empty
\let\@currpath\@empty
\let\@currname\@empty
\global\let\@currext=\@empty
\def\@clsextension{cls}
\def\@pkgextension{sty}
\def\@pushfilename{%
  \@expl@push@filename@@
  \xdef\@currnamestack{%
    {\@currname}%
    {\@currext}%
    {\the\catcode`\@}%
    \@currnamestack}%
  \xdef\@kernel@currpathstack{%
    {\@currpath}%
    \@kernel@currpathstack}%
  \@expl@push@filename@aux@@}
\@onlypreamble\@pushfilename
\def\@popfilename{\@expl@@@hook@curr@name@pop@@
  \expandafter\@p@pfilename\@currnamestack\@nil
  \expandafter\@p@pfilepath\@kernel@currpathstack\@nil
  \@expl@pop@filename@@}
\@onlypreamble\@popfilename
\def\@p@pfilename#1#2#3#4\@nil{%
  \gdef\@currname{#1}%
  \gdef\@currext{#2}%
  \catcode`\@#3\relax
  \gdef\@currnamestack{#4}}
\@onlypreamble\@p@pfilename
\gdef\@currnamestack{}
\@onlypreamble\@currnamestack
\gdef\@kernel@currpathstack{}%
\def\@p@pfilepath#1{%
  \gdef\@currpath{#1}\@p@pfilepath@aux\@empty}
\def\@p@pfilepath@aux#1\@nil{%
  \xdef\@kernel@currpathstack{#1}}
\def\@ptionlist#1{%
  \@ifundefined{opt@#1}\@empty{\csname opt@#1\endcsname}}
\def\@ifpackageloaded{\@ifl@aded\@pkgextension}
\def\@ifclassloaded{\@ifl@aded\@clsextension}
\def\@ifl@aded#1#2{%
  \expandafter\ifx\csname ver@#2.#1\endcsname\relax
    \expandafter\@secondoftwo
  \else
    \expandafter\@firstoftwo
  \fi}
\def\@ifpackagelater{\@ifl@ter\@pkgextension}
\def\@ifclasslater{\@ifl@ter\@clsextension}
\def\IfFormatAtLeastTF{\@ifl@t@r\fmtversion}
\let\IfPackageAtLeastTF\@ifpackagelater
\let\IfClassAtLeastTF\@ifclasslater
\def\IfFileAtLeastTF#1{\expandafter\@ifl@t@r\csname ver@#1\endcsname}
\def\@ifl@ter#1#2{%
  \expandafter\@ifl@t@r
    \csname ver@#2.#1\endcsname}
\def\@ifl@t@r#1#2{%
  \ifnum\expandafter\@parse@version@#1//00\@nil<%
        \expandafter\@parse@version@#2//00\@nil
    \expandafter\@secondoftwo
  \else
    \expandafter\@firstoftwo
  \fi}
\def\@parse@version@#1{\@parse@version0#1}
\def\@parse@version#1/#2/#3#4#5\@nil{%
\@parse@version@dash#1-#2-#3#4\@nil
}
\def\@parse@version@dash#1-#2-#3#4#5\@nil{%
  \if\relax#2\relax\else#1\fi#2#3#4 }
\def\@ifpackagewith{\@if@ptions\@pkgextension}
\def\@ifclasswith{\@if@ptions\@clsextension}
\def\@if@ptions#1#2{%
  \@expandtwoargs\@if@pti@ns{\@ptionlist{#2.#1}}}
\def\@if@pti@ns#1#2{%
 \let\reserved@a\@firstoftwo
 \edef\reserved@b{\zap@space#2 \@empty}%
 \@for\reserved@b:=\reserved@b\do{%
   \ifx\reserved@b\@empty
   \else
     \expandafter\in@\expandafter{\expandafter,\reserved@b,}{,#1,}%
     \ifin@
     \else
       \let\reserved@a\@secondoftwo
     \fi
   \fi
 }%
 \reserved@a}
\let \IfPackageLoadedTF            \@ifpackageloaded
\let \IfClassLoadedTF              \@ifclassloaded
\let \IfPackageLoadedWithOptionsTF \@ifpackagewith
\let \IfClassLoadedWithOptionsTF   \@ifclasswith
\def\IfPackageLoadedT #1#2{\IfPackageLoadedTF{#1}{#2}{}}
\def\IfPackageLoadedF   #1{\IfPackageLoadedTF{#1}{}}
\def\IfClassLoadedT   #1#2{\IfClassLoadedTF{#1}{#2}{}}
\def\IfClassLoadedF     #1{\IfClassLoadedTF{#1}{}}
\def\IfPackageAtLeastT#1#2#3{\IfPackageAtLeastTF{#1}{#2}{#3}{}}
\def\IfPackageAtLeastF  #1#2{\IfPackageAtLeastTF{#1}{#2}{}}
\def\IfClassAtLeastT  #1#2#3{\IfClassAtLeastTF{#1}{#2}{#3}{}}
\def\IfClassAtLeastF    #1#2{\IfClassAtLeastTF{#1}{#2}{}}
\def\IfFileAtLeastT   #1#2#3{\IfFileAtLeastTF{#1}{#2}{#3}{}}
\def\IfFileAtLeastF     #1#2{\IfFileAtLeastTF{#1}{#2}{}}
\def\IfFormatAtLeastT   #1#2{\IfFormatAtLeastTF{#1}{#2}{}}
\def\IfFormatAtLeastF     #1{\IfFormatAtLeastTF{#1}{}}
\def\IfPackageLoadedWithOptionsT #1#2#3{\IfPackageLoadedWithOptionsTF{#1}{#2}{#3}{}}
\def\IfPackageLoadedWithOptionsF   #1#2{\IfPackageLoadedWithOptionsTF{#1}{#2}{}}
\def\IfClassLoadedWithOptionsT #1#2#3{\IfClassLoadedWithOptionsTF{#1}{#2}{#3}{}}
\def\IfClassLoadedWithOptionsF   #1#2{\IfClassLoadedWithOptionsTF{#1}{#2}{}}
\def\IfFileLoadedTF#1{%
  \expandafter\ifx\csname ver@#1\endcsname\relax
    \expandafter\@secondoftwo
  \else
    \expandafter\@firstoftwo
  \fi}
\def\IfFileLoadedT#1#2{\IfFileLoadedTF{#1}{#2}{}}
\def\IfFileLoadedF  #1{\IfFileLoadedTF{#1}{}}
\def\ProvidesPackage#1{%
  \xdef\@gtempa{#1}%
  \@expandtwoargs\@expl@str@if@eq@@nnTF
      {\@gtempa}{\@currpath\@currname}{}{%
    \@latex@warning@no@line{You have requested
      \@cls@pkg\space`\@currpath\@currname',\MessageBreak
       but the \@cls@pkg\space provides `#1'}%
    }%
  \@ifnextchar[\@pr@videpackage{\@pr@videpackage[]}}%]
\@onlypreamble\ProvidesPackage
\def\@pr@videpackage[#1]{%
  \expandafter\protected@xdef                %     <-- protected...
     \csname ver@\@currname.\@currext\endcsname{#1}% Loaded package
  \expandafter\let
    \csname ver@\@currpkg@reqd\expandafter\endcsname % Requested package
    \csname ver@\@currname.\@currext\endcsname
  \ifx\@currext\@clsextension
    \typeout{Document Class: \@gtempa\space#1}%
  \else
    \protected@wlog{Package: \@gtempa\space#1}%   <--- protected
  \fi}
\long\def\protected@wlog#1{\begingroup
  \set@display@protect
  \immediate \write \m@ne {#1}\endgroup }
\@onlypreamble\@pr@videpackage
\let\ProvidesClass\ProvidesPackage
\@onlypreamble\ProvidesClass
\def\ProvidesFile#1{%
  \begingroup
    \catcode`\ 10 %
    \ifnum \endlinechar<256 %
      \ifnum \endlinechar>\m@ne
        \catcode\endlinechar 10 %
      \fi
    \fi
    \@makeother\/%
    \@makeother\&%
    \kernel@ifnextchar[{\@providesfile{#1}}{\@providesfile{#1}[]}}
\def\@pass@ptions#1#2#3{%
  \@expl@@@filehook@set@curr@file@@nNN
    {\@expl@@@filehook@resolve@file@subst@@w #3.#1\@nil}%
      \reserved@a\reserved@b
  \@expl@@@filehook@clear@replacement@flag@@
  \expandafter\protected@xdef\csname opt@\reserved@a\endcsname{%
    \@ifundefined{opt@\reserved@a}\@empty
      {\csname opt@\reserved@a\endcsname,}%
    \zap@space#2 \@empty}%
  \expandafter\let
    \csname opt@#3.#1\expandafter\endcsname
    \csname opt@\reserved@a\endcsname
  \@ifundefined{@raw@opt@#3.#1}%
    {\expandafter\gdef\csname @raw@opt@#3.#1\expandafter\endcsname
              \expandafter{#2}}%
    {\expandafter\g@addto@macro\csname @raw@opt@#3.#1\expandafter\endcsname
              \expandafter{\expandafter,#2}}%
}
\@onlypreamble\@pass@ptions
\def\PassOptionsToPackage{\@pass@ptions\@pkgextension}
\def\PassOptionsToClass{\@pass@ptions\@clsextension}
\@onlypreamble\PassOptionsToPackage
\@onlypreamble\PassOptionsToClass
\def\DeclareOption{%
  \let\@fileswith@pti@ns\@badrequireerror
  \@ifstar\@defdefault@ds\@declareoption}
\long\def\@declareoption#1#2{%
   \xdef\@declaredoptions{\@declaredoptions,#1}%
   \toks@{#2}%
   \expandafter\edef\csname ds@#1\endcsname{\the\toks@}}
\long\def\@defdefault@ds#1{%
  \toks@{#1}%
  \edef\default@ds{\the\toks@}}
\@onlypreamble\DeclareOption
\@onlypreamble\@declareoption
\@onlypreamble\@defdefault@ds
\ExplSyntaxOn
\def\@remove@eq@value#1=#2\@nil{\tl_trim_spaces:n{#1}}
\ExplSyntaxOff
\def\OptionNotUsed{%
  \ifx\@currext\@clsextension
    \xdef\@unusedoptionlist{%
      \ifx\@unusedoptionlist\@empty\else\@unusedoptionlist,\fi
      \expandafter\@remove@eq@value\CurrentOption=\@nil}%
  \fi}
\@onlypreamble\OptionNotUsed
\def\ProcessOptions{%
  \let\ds@\@empty
  \protected@edef\@curroptions{\@ptionlist{\@currname.\@currext}}%
  \@ifstar\@xprocess@ptions\@process@ptions}
\@onlypreamble\ProcessOptions
\def\@process@ptions{%
  \@for\CurrentOption:=\@declaredoptions\do{%
    \ifx\CurrentOption\@empty\else
      \@expandtwoargs\in@{,\CurrentOption,}{%
         ,\ifx\@currext\@clsextension\else\@classoptionslist,\fi
         \@curroptions,}%
      \ifin@
        \@use@ption
        \expandafter\let\csname ds@\CurrentOption\endcsname\@empty
      \fi
    \fi}%
  \@process@pti@ns}
\@onlypreamble\@process@ptions
\def\@xprocess@ptions{%
  \ifx\@currext\@clsextension\else
   \ifx\@classoptionslist\relax\else
    \@for\CurrentOption:=\@classoptionslist\do{%
      \ifx\CurrentOption\@empty\else
        \@ifundefined{ds@\detokenize\expandafter{\CurrentOption}}{}{%
          \@use@ption
          \expandafter\let\csname ds@\CurrentOption\endcsname\@empty
        }%
      \fi}%
    \fi
  \fi
  \@process@pti@ns}
\@onlypreamble\@xprocess@ptions
\def\@process@pti@ns{%
  \@for\CurrentOption:=\@curroptions\do{%
    \@ifundefined{ds@\detokenize\expandafter{\CurrentOption}}%
      {\@use@ption
       \default@ds}%
      \@use@ption}%
  \@for\CurrentOption:=\@declaredoptions\do{%
    \expandafter\let\csname ds@\CurrentOption\endcsname\relax}%
  \let\CurrentOption\@empty
  \let\@fileswith@pti@ns\@@fileswith@pti@ns
  \AtEndOfPackage{\expandafter\let
                     \csname unprocessedoptions-\@currname.\@currext\endcsname
                     \relax}}
\@onlypreamble\@process@pti@ns
\def\@options{\ProcessOptions*}
\@onlypreamble\@options
\def\@use@ption{%
  \@expandtwoargs\@removeelement
     {\expandafter\@remove@eq@value\CurrentOption=\@nil}%
  \@unusedoptionlist\@unusedoptionlist
  \csname ds@\detokenize\expandafter{\CurrentOption}\endcsname}
\@onlypreamble\@use@ption
\def\ExecuteOptions#1{%
  \edef\@fortmp{\zap@space#1 \@empty}%
  \def\reserved@a##1\@nil{%
    \@for\CurrentOption:=\@fortmp\do
             {\csname ds@\CurrentOption\endcsname}%
    \edef\CurrentOption{##1}}%
  \expandafter\reserved@a\CurrentOption\@nil}
\@onlypreamble\ExecuteOptions
\def\documentclass{%
  \let\documentclass\@twoclasseserror
  \if@compatibility\else\let\usepackage\RequirePackage\fi
  \@fileswithoptions\@clsextension}
\@onlypreamble\documentclass
\def\documentstyle{%
  \makeatletter\input{latex209.def}\makeatother
  \documentclass}
\@onlypreamble\documentstyle
\def\RequirePackage{%
  \@fileswithoptions\@pkgextension}
\@onlypreamble\RequirePackage
\def\LoadClass{%
  \ifx\@currext\@pkgextension
     \@latex@error
      {\noexpand\LoadClass in package file}%
      {You may only use \noexpand\LoadClass in a class file.}%
  \fi
  \@fileswithoptions\@clsextension}
\@onlypreamble\LoadClass
\def\@loadwithoptions#1#2#3{%
  \expandafter\let\csname opt@#3.#1\expandafter\endcsname
       \csname opt@\@currname.\@currext\endcsname
  \expandafter\let\csname @raw@opt@#3.#1\expandafter\endcsname
       \csname @raw@opt@\@currname.\@currext\endcsname
   #2{#3}}
\@onlypreamble\@loadwithoptions
\def\LoadClassWithOptions{%
  \@loadwithoptions\@clsextension\LoadClass}
\@onlypreamble\LoadClassWithOptions
\def\RequirePackageWithOptions{%
  \AtEndOfPackage{\expandafter\let
                    \csname unprocessedoptions-\@currname.\@currext\endcsname
                    \relax}%
  \@loadwithoptions\@pkgextension\RequirePackage}
\@onlypreamble\RequirePackageWithOptions

\def\usepackage#1#{%
  \@latex@error
    {\noexpand \usepackage before \string\documentclass}%
    {\noexpand \usepackage may only appear in the document
      preamble, i.e.,\MessageBreak
      between \noexpand\documentclass and
      \string\begin{document}.}%
  \@gobble}
\@onlypreamble\usepackage
\def\NeedsTeXFormat#1{%
  \def\reserved@a{#1}%
  \ifx\reserved@a\fmtname
    \expandafter\@needsformat
  \else
     \@latex@error{This file needs format `\reserved@a'%
       \MessageBreak but this is `\fmtname'}{%
       The current input file will not be processed
       further,\MessageBreak
       because it was written for some other flavor of
       TeX.\MessageBreak\@ehd}%
     \endinput \fi}
\@onlypreamble\NeedsTeXFormat
\def\@needsformat{%
  \@ifnextchar[%]
    \@needsf@rmat
    {}}
\@onlypreamble\@needsformat
\def\@needsf@rmat[#1]{%
    \@ifl@t@r\fmtversion{#1}{}%
    {\@latex@warning@no@line
        {You have requested release `#1' of LaTeX,\MessageBreak
         but only release `\fmtversion' is available}}}
\@onlypreamble\@needsf@rmat
\def\zap@space#1 #2{%
  #1%
  \ifx#2\@empty\else\expandafter\zap@space\fi
  #2}
\def\@fileswithoptions#1{%
    \ifnum\currentgrouplevel>\z@
     \@latex@error
      {Loading a class or package in a group}%
      {Classes and packages should only be loaded at the top level}%
  \fi
  \@ifnextchar[%]
    {\@fileswith@ptions#1}%
    {\@fileswith@ptions#1[]}}
\@onlypreamble\@fileswithoptions
\def\@fileswith@ptions#1[#2]#3{%
  \@ifnextchar[%]
  {\@fileswith@pti@ns#1[{#2}]#3}%
  {\@fileswith@pti@ns#1[{#2}]#3[]}}
\@onlypreamble\@fileswith@ptions
\def\@fileswith@pti@ns#1[#2]#3[#4]{%
  \ifx#1\@clsextension
    \ifx\@classoptionslist\relax
      \protected@xdef\@classoptionslist{\zap@space#2 \@empty}%
      \gdef\@raw@classoptionslist{#2}%
      \def\reserved@a{%
        \@onefilewithoptions#3[{#2}][{#4}]#1%
        \@documentclasshook}%
    \else
      \def\reserved@a{%
        \@onefilewithoptions#3[{#2}][{#4}]#1}%
    \fi
  \else
    \def\reserved@b##1,{%
      \ifx\@nnil##1\relax\else
        \ifx\@nnil##1\@nnil\else
         \noexpand\@onefilewithoptions##1[{\unexpanded{#2}}][{#4}]%
         \noexpand\@pkgextension
        \fi
        \expandafter\reserved@b
      \fi}%
      \edef\reserved@a{\zap@space#3 \@empty}%
      \edef\reserved@a{\expandafter\reserved@b\reserved@a,\@nnil,}%
  \fi
  \reserved@a}
\@onlypreamble\@fileswith@pti@ns
\def\@onefilewithoptions#1[#2][#3]#4{%
  \@expl@@@filehook@set@curr@file@@nNN{#1.#4}\reserved@a\reserved@b
  \edef\reserved@c{\def\noexpand\reserved@c####1%
    \detokenize\expandafter{\expanded{.#4}}%
    \noexpand\@nil{\def\noexpand\reserved@a{####1}}}\reserved@c
  \expandafter\reserved@c\reserved@a\@nil
  \@pushfilename
  \xdef\@currname{\string@makeletter\reserved@a}%
  \xdef\@currpath{\ifx\reserved@b\@empty\else\reserved@b/\fi}%
  \global\let\@currext#4%
  \@ifl@aded\@currext\@currname
    {%
      \@ifundefined{opt@handler@\@currname.\@currext}
        {\@onefilewithoptions@clashchk{#2}}
        {%
          \expandafter\protected@edef
            \csname opt@\@currname.\@currext\endcsname
            {\zap@space#2 \@empty}%
          \expandafter\def
            \csname @raw@opt@\@currname.\@currext\expandafter\endcsname
            \expandafter{#2}%
          \@nameuse{opt@handler@\@currname.\@currext}%
        }%
    }%
    {\makeatletter
     \@reset@ptions
     \IfFileExists{\@currpath\@currname.\@currext}{}%
       {\@missing@onefilewithoptions{#2}}%
     \ifx\@currname\@empty
       \expandafter\@gobble
     \else
       \@disable@packageload@do{\@currname.\@currext}%
         {\@expl@@@filehook@file@push@@
          \set@curr@file{\@currpath\@currname.\@currext}%
          \@filehook@set@CurrentFile
          \expandafter\@swaptwoargs\expandafter
            {\expandafter{\@currpkg@reqd}}%
            {% <
          \edef\@currpkg@reqd{\@currname.\@currext}%
          \ifx\CurrentFile\CurrentFileUsed
          \else
            \filename@parse\@curr@file
            \edef\@currpath{\string@makeletter\filename@area}%
            \edef\@currname{\string@makeletter\filename@base}%
            \edef\@currext{\string@makeletter\filename@ext}%
          \fi
          \load@onefile@withoptions{#2}%
          \def\@currpkg@reqd%{\@currpkg@reqd}
            }% >
          \@expl@@@filehook@file@pop@@}%
       \expandafter\@firstofone
     \fi}%
    {\@ifl@ter\@currext{\@currname}{#3}{}%
      {\@latex@warning@no@line
        {You have requested,\on@line,
         version\MessageBreak
           `#3' of \@cls@pkg\space \@currname,\MessageBreak
         but only version\MessageBreak
          `\csname ver@\@currname.\@currext\endcsname'\MessageBreak
         is available}}%
     \ifx\@currext\@clsextension\let\LoadClass\@twoloadclasserror\fi}%
    \@popfilename
    \@reset@ptions}
\def\@onefilewithoptions@clashchk#1{%
  \@if@ptions\@currext{\@currname}{#1}{}%
      {\@latex@error
        {Option clash for \@cls@pkg\space \@currname}%
        {The package \@currname\space has already been loaded
         with options:\MessageBreak
         \space\space[\@ptionlist{\@currname.\@currext}]\MessageBreak
         There has now been an attempt to load it
          with options\MessageBreak
         \space\space[#1]\MessageBreak
         Adding the global options:\MessageBreak
         \space\space
              \@ptionlist{\@currname.\@currext},#1\MessageBreak
         to your \noexpand\documentclass declaration may fix this.%
         \MessageBreak
         Try typing \space <return> \space to proceed.}}%
     \@firstofone}
\let\@currpkg@reqd\@empty
\@onlypreamble\@onefilewithoptions
\let\@unprocessedoptions\@undefined
\def\@missing@onefilewithoptions#1{%
  \@missingfileerror{\@currpath\@currname}\@currext
  \global\let\@currpath\@missingfile@area
  \global\let\@currname\@missingfile@base
  \global\let\@currext\@missingfile@ext}
\def\load@onefile@withoptions#1{%
  \let\CurrentOption\@empty
  \@reset@ptions
  \def\reserved@a{%
    \@pass@ptions\@currext{#1}{\@currname}%
    \expandafter\let
      \csname opt@\@currpkg@reqd\expandafter\endcsname
      \csname opt@\@currname.\@currext\endcsname
    \expandafter\let
      \csname @raw@opt@\@currpkg@reqd\expandafter\endcsname
      \csname @raw@opt@\@currname.\@currext\endcsname
    \global\expandafter
    \let\csname ver@\@currname.\@currext\endcsname\@empty
    \expandafter\let\csname\@currname.\@currext-h@@k\endcsname\@empty
    \ifx\@currext\@pkgextension
      \UseHook{package/before}%
      \UseOneTimeHook{package/\@currname/before}%
    \else
      \ifx\@currext\@clsextension
        \UseHook{class/before}%
        \UseOneTimeHook{class/\@currname/before}%
      \fi
    \fi
    \InputIfFileExists{\@currpath\@currpkg@reqd}{}%
      {\@latex@error
        {The \@cls@pkg\space\@currpkg@reqd\space failed to load}\@ehd}%
    \expandafter\let\csname unprocessedoptions-\@currname.\@currext\endcsname
                    \@@unprocessedoptions
    \csname\@currname.\@currext-h@@k\endcsname
    \expandafter\let\csname\@currname.\@currext-h@@k\endcsname
              \@undefined
    \ifx\@unprocessedoptions\relax
      \let\@unprocessedoptions\@undefined
    \else
      \csname unprocessedoptions-\@currname.\@currext\endcsname
    \fi
    \expandafter\let
        \csname unprocessedoptions-\@currname.\@currext\endcsname
       \@undefined
    \ifx\@currext\@pkgextension
      \UseOneTimeHook{package/\@currname/after}%
      \UseHook{package/after}%
    \else
      \ifx\@currext\@clsextension
        \UseOneTimeHook{class/\@currname/after}%
        \UseHook{class/after}%
      \fi
    \fi}%
  \@ifl@aded\@currext\@currname{}{\reserved@a}}
\NewHook{package/before}
\NewHook{class/before}
\NewReversedHook{package/after}
\NewReversedHook{class/after}
\let\@@fileswith@pti@ns\@fileswith@pti@ns
\@onlypreamble\@@fileswith@pti@ns
\def\@reset@ptions{%
  \global\ifx\@currext\@clsextension
    \let\default@ds\OptionNotUsed
   \else
    \let\default@ds\@unknownoptionerror
  \fi
  \global\let\ds@\@empty
  \global\let\@declaredoptions\@empty}
\@onlypreamble\@reset@ptions
\ifx\@begindocumenthook\@undefined
  \let\@begindocumenthook\@empty
\fi
\let\@enddocumenthook\@empty
\def\AtEndOfPackage{%
  \expandafter\g@addto@macro\csname\@currname.\@currext-h@@k\endcsname}
\let\AtEndOfClass\AtEndOfPackage
\@onlypreamble\AtEndOfPackage
\@onlypreamble\AtEndOfClass
\DeclareRobustCommand\AtBeginDocument{\AddToHook{begindocument}}
\DeclareRobustCommand\AtEndDocument  {\AddToHook{enddocument}}
\@onlypreamble\AtBeginDocument
\def\@cls@pkg{%
  \ifx\@currext\@clsextension
    document class%
  \else
    \ifx\@currext\@pkgextension
      package%
    \else
      file%
    \fi
  \fi}
\@onlypreamble\@cls@pkg
\def\@unknownoptionerror{%
  \@latex@error
    {Unknown option `\CurrentOption' for \@cls@pkg\space`\@currname'}%
    {The option `\CurrentOption' was not declared in
     \@cls@pkg\space`\@currname', perhaps you\MessageBreak
      misspelled its name.
     Try typing \space <return>
     \space to proceed.}}
\@onlypreamble\@unknownoptionerror
\def\@@unprocessedoptions{%
  \ifx\@currext\@pkgextension
    \protected@edef\@curroptions{\@ptionlist{\@currname.\@currext}}%
    \@for\CurrentOption:=\@curroptions\do{%
        \ifx\CurrentOption\@empty\else\@unknownoptionerror\fi}%
  \fi}
\@onlypreamble\@unprocessedoptions
\@onlypreamble\@@unprocessedoptions
\def\@badrequireerror#1[#2]#3[#4]{%
  \@latex@error
    {\noexpand\RequirePackage or \noexpand\LoadClass
         in Options Section}%
    {The \@cls@pkg\space `\@currname' is defective.\MessageBreak
     It attempts to load `#3' in the options section, i.e.,\MessageBreak
     between \noexpand\DeclareOption and \string\ProcessOptions.}}
\@onlypreamble\@badrequireerror
\def\@twoloadclasserror{%
  \@latex@error
    {Two \noexpand\LoadClass commands}%
    {You may only use one \noexpand\LoadClass in a class file}}
\@onlypreamble\@twoloadclasserror
\def\@twoclasseserror#1#{%
  \@latex@error
    {Two \noexpand\documentclass or \noexpand\documentstyle commands}%
    {The document may only declare one class.}\@gobble}
\@onlypreamble\@twoclasseserror
\def\two@digits#1{\ifnum#1<10 0\fi\number#1}
\def\filecontents{\@tempswatrue\@fileswtrue
  \@ifnextchar[\filec@ntents@opt\filec@ntents
}
\@namedef{filecontents*}{\@tempswafalse\@fileswtrue
  \@ifnextchar[\filec@ntents@opt\filec@ntents
}
\def\filec@ntents@opt[#1]{%
  \edef\@fortmp{\zap@space#1 \@empty}%
  \@for\reserved@a:=\@fortmp\do{%
    \ifcsname filec@ntents@\reserved@a\endcsname
      \csname filec@ntents@\reserved@a\endcsname
    \else
    \@latex@error{Unknown filecontents option \reserved@a}%
       {Valid options are force (or overwrite), nosearch, noheader, nowarn}%
    \fi}%
  \filec@ntents
}
\let\filec@ntents@force\@fileswfalse
\let\filec@ntents@overwrite\@fileswfalse  % alternative name
\let\filec@ntents@noheader\@tempswafalse
\def\filec@ntents@nosearch{%
  \let\filec@ntents@checkdir\@currdir
  \def\filec@ntents@where{in current directory}}
\let\filec@ntents@checkdir\@empty
\def\filec@ntents@where{exists on the system}
\def\filec@ntents@nowarn{%
  \let\filec@ntents@warning\@latex@note@no@line
}
\let\filec@ntents@warning\@latex@warning@no@line
\begingroup%
\@tempcnta=1
\loop
  \catcode\@tempcnta=12  %
  \advance\@tempcnta\@ne %
\ifnum\@tempcnta<32      %
\repeat                  %
\catcode`\*=11 %
\catcode`\^^M\active%
\catcode`\^^L\active\let^^L\relax%
\catcode`\^^I\active%
\gdef\filec@ntents#1{%
  \set@curr@file{\filec@ntents@checkdir#1}%
  \edef\q@curr@file{"\@curr@file"}%
  \chardef\reserved@c\ifx\directlua\@undefined 15 \else 127 \fi%
  \openin\@inputcheck\q@curr@file \space %
  \ifeof\@inputcheck%
    \@latex@note@no@line%
        {Writing file `\@currdir\@curr@file'}%
    \ch@ck7\reserved@c\write\relax%
    \immediate\openout\reserved@c\q@curr@file\relax%
  \else%
    \if@filesw%
      \@latex@note@no@line%
          {File `\@curr@file' already \filec@ntents@where.\MessageBreak%
             Not generating it from this source}%
      \let\write\@gobbletwo%
      \let\closeout\@gobble%
    \else%
      \edef\reserved@b{\detokenize\expandafter{\jobname}}%
      \ifx\@curr@file\reserved@b%
        \@fileswtrue%
      \else%
        \edef\reserved@b{\reserved@b\detokenize{.tex}}%
        \ifx\@curr@file\reserved@b
          \@fileswtrue%
        \fi%
      \fi%
      \ch@ck7\reserved@c\write\relax%
      \if@filesw%  % Foul ... trying to overwrite \jobname!
      \@latex@error{Trying to overwrite `\jobname.tex'}{You can't %
        write to the file you are reading from!\MessageBreak%
        Data is written to screen instead.}%
      \else%
        \filec@ntents@warning%
           {Writing or overwriting file `\@curr@file'}%
        \immediate\openout\reserved@c\q@curr@file\relax%
      \fi%
    \fi%
  \fi%
  \closein\@inputcheck%
  \if@tempswa%
    \immediate\write\reserved@c{%
      \@percentchar\@percentchar\space%
          \expandafter\@gobble\string\LaTeX2e file `\@curr@file'^^J%
      \@percentchar\@percentchar\space  generated by the %
        `\@currenvir' \expandafter\@gobblefour\string\newenvironment^^J%
      \@percentchar\@percentchar\space from source `\jobname' on %
         \number\year/\two@digits\month/\two@digits\day.^^J%
      \@percentchar\@percentchar}%
  \fi%
  \let\do\@makeother\dospecials%
  \count@ 128\relax%
  \loop%
    \catcode\count@ 11\relax%
    \advance\count@ \@ne%
    \ifnum\count@<\@cclvi%
  \repeat%
  \edef\E{\@backslashchar end\string{\@currenvir\string}}%
  \edef\reserved@b{%
    \def\noexpand\reserved@b%
         ####1\E####2\E####3\relax}%
  \reserved@b{%
    \ifx\relax##3\relax%
      \immediate\write\reserved@c{##1}%
    \else%
      \edef^^M{\noexpand\end{\@currenvir}}%
      \ifx\relax##1\relax%
      \else%
          \@latex@warning{Writing text `##1' before %
            \string\end{\@currenvir}\MessageBreak
            as last line of \@curr@file}%
        \immediate\write\reserved@c{##1}%
      \fi%
      \ifx\relax##2\relax%
      \else%
         \@latex@warning{%
           Ignoring text `##2' after \string\end{\@currenvir}}%
      \fi%
    \fi%
    ^^M}%
  \catcode`\^^L\active%
  \let\L\@undefined%
  \def^^L{\expandafter\ifx\csname L\endcsname\relax\fi ^^J^^J}%
  \catcode`\^^I\active%
  \let\I\@undefined%
  \def^^I{\expandafter\ifx\csname I\endcsname\relax\fi\space}%
  \catcode`\^^M\active%
  \edef^^M##1^^M{%
    \noexpand\reserved@b##1\E\E\relax}}%
\endgroup%
\begingroup
\catcode`|=\catcode`\%
\catcode`\%=12
\catcode`\*=11
\gdef\@percentchar{%}
\gdef\endfilecontents{|
  \immediate\closeout\reserved@c
  \def\T##1##2##3{|
  \ifx##1\@undefined\else
    \@latex@warning@no@line{##2 has been converted to Blank ##3e}|
  \fi}|
  \T\L{Form Feed}{Lin}|
  \T\I{Tab}{Spac}|
  \immediate\write\@unused{}}
\global\let\endfilecontents*\endfilecontents
\endgroup
\let\pkgcls@debug\@gobble
\def\requestedLaTeXdate{0}
\ifx\pkgcls@targetdate\@undefined
  \newcount\pkgcls@targetdate
\fi
\let\pkgcls@targetlabel\@empty
\def\pkgcls@innerdate{\maxdimen}
\let\pkgcls@candidate\@empty
\let\pkgcls@releasedate\@empty
\ifx\load@onefilewithoptions\@undefined
 \let\load@onefilewithoptions\@onefilewithoptions
 \def\@onefilewithoptions#1[#2][#3]#4{%
  \pkgcls@debug{--- File loaded request (\noexpand\usepackage or ...)}%
  \pkgcls@debug{\@spaces 1: #1}%
  \pkgcls@debug{\@spaces 2: #2}%
  \pkgcls@debug{\@spaces 3: #3}%
  \pkgcls@debug{\@spaces 4: #4}%
  \def\pkgcls@name{#1}%                  % for info message
  \def\pkgcls@arg {#3}%                  % for info message
  \edef\pkgcls@ext{%
    \ifx#4\@clsextension document class\else
      \ifx#4\@pkgextension package\else
        file
      \fi
    \fi
  }%                                     % for info message
  \pkgcls@parse@date@arg{#3}%
  \let\pkgcls@candidate\@empty
  \begingroup
  \edef\reserved@a{%
    \endgroup
    \unexpanded{\load@onefilewithoptions#1[#2]}%
    [\pkgcls@mindate]%
    \unexpanded{#4}}%
   \reserved@a
 }
\fi
\def\pkgcls@parse@date@arg #1{%
   \ifx\@nil#1\@nil
     \pkgcls@targetdate\requestedLaTeXdate\relax
     \let\pkgcls@targetlabel\@empty
     \let\pkgcls@mindate\@empty
   \else
     \pkgcls@parse@date@arg@#1=\@nil\relax
   \fi
 }
\def\pkgcls@parse@date@arg@#1=#2\@nil{%
  \pkgcls@targetdate
    \ifx\@nil#1\@nil
      \@parse@version0#2//00\@nil\relax
      \ifnum \pkgcls@targetdate=\z@
        \pkgcls@targetdate\@ne
        \def\pkgcls@innerdate{\maxdimen}%
        \pkgcls@parse@date@arg@version#2%
      \else
        \edef\pkgcls@innerdate{\the\pkgcls@targetdate}%
      \fi
      \let\pkgcls@mindate\@empty
    \else
      \requestedLaTeXdate\relax
      \let\pkgcls@targetlabel\@empty
      \def\pkgcls@innerdate{\maxdimen}%
      \def\pkgcls@mindate{#1}%
      \ifnum \pkgcls@targetdate > \z@
        \ifnum \@parse@version0#1//00\@nil > \pkgcls@targetdate
          \@latex@warning@no@line{Suspicious rollback/min-date date given\MessageBreak
            A minimal date of #1 has been specified for
             \pkgcls@ext\MessageBreak '\pkgcls@name'.\MessageBreak
             But this is in conflict
             with a rollback request to \requestedpatchdate}
        \fi
      \fi
    \fi
}
\def\pkgcls@parse@date@arg@version#1={%
  \def\pkgcls@targetlabel{#1}}
\def\DeclareRelease#1#2#3{%
  \ifnum\pkgcls@targetdate>\z@  % some sort of rollback request
    \pkgcls@debug{---\string\DeclareRelease:}%
    \pkgcls@debug{\@spaces 1: #1}%
    \pkgcls@debug{\@spaces 2: #2}%
    \pkgcls@debug{\@spaces 3: #3}%
    \ifx\@nil#2\@nil
      \ifnum\pkgcls@targetdate=\@ne  % named request
        \def\reserved@a{#1}%
        \ifx\pkgcls@targetlabel\reserved@a
          \pkgcls@use@this@release{#3}{}%
        \else
          \pkgcls@debug{Label doesn't match}%
        \fi
      \else
        \pkgcls@debug{Date request: ignored}%
      \fi
    \else
      \ifnum\pkgcls@targetdate>\@ne  % a real request
        \ifnum\@parse@version#2//00\@nil
             >\pkgcls@targetdate
          \ifx\pkgcls@candidate\@empty
            \pkgcls@rollbackdate@error{#2}%
            \pkgcls@use@this@release{#3}{#2}%
          \else
            \pkgcls@use@this@release\pkgcls@candidate
                                    \pkgcls@releasedate
          \fi
        \else
          \def\pkgcls@candidate{#3}%
          \def\pkgcls@releasedate{#2}%
          \pkgcls@debug{New candidate: #3}%
        \fi
      \else
        \def\reserved@a{#1}%
        \ifx\pkgcls@targetlabel\reserved@a
          \pkgcls@use@this@release{#3}{#2}%
        \else
          \pkgcls@debug{Label doesn't match}%
        \fi
      \fi
    \fi
  \fi
}
\def\pkgcls@use@this@release#1#2{%
   \pkgcls@show@selection{#1}{#2}%
   \pkgcls@targetdate\z@
   \@addtofilelist{#1}%
   \@@input #1\relax
   \endinput
}
\def\pkgcls@show@selection#1#2{%
  \pkgcls@debug{Result: use  #1}%
  \GenericInfo
   {\@spaces\@spaces\space}{Rollback for
    \@cls@pkg\space'\@currname' requested ->
    \ifnum\pkgcls@targetdate>\@ne
       date
       \ifnum\requestedLaTeXdate=\pkgcls@targetdate
          \requestedpatchdate
       \else
          \expandafter\@gobble\pkgcls@arg
       \fi.\MessageBreak
       Best approximation is
    \else
       version '\pkgcls@targetlabel'.\MessageBreak
       This corresponds to
    \fi
    \ifx\@nil#2\@nil
       a special release%
    \else
       the release introduced on #2%
    \fi
    \@gobble}%
}
\def\pkgcls@rollbackdate@error#1{%
  \@latex@error{Suspicious rollback date given}%
     {The \@cls@pkg\space'\@currname'  has no rollback data
      before #1 which\MessageBreak
      is after your requested rollback date --- so
      something may be wrong here.\MessageBreak
      Continue and we use the earliest known release.}}
\def\DeclareCurrentRelease#1#2{%
  \ifnum\pkgcls@targetdate>\z@  % some sort of rollback request
    \pkgcls@debug{---DeclareCurrentRelease}%
    \pkgcls@debug{   1: #1}%
    \pkgcls@debug{   2: #2}%
    \ifnum\pkgcls@targetdate>\@ne  % a date request
      \ifnum\@parse@version#2//00\@nil
           >\pkgcls@targetdate
        \ifx\pkgcls@candidate\@empty
          \pkgcls@rollbackdate@error{#2}%
        \else
          \pkgcls@use@this@release\pkgcls@candidate
                                  \pkgcls@releasedate
        \fi
      \else
        \pkgcls@show@selection{current version}{#2}%
      \fi
    \else % a label request
      \def\reserved@a{#1}%
      \ifx\pkgcls@targetlabel\reserved@a
        \pkgcls@show@selection{current version}{#2}%
      \else
        \@latex@error{Requested version '\pkgcls@targetlabel' for
          \@cls@pkg\space'\@currname' is unknown}\@ehc
      \fi
    \fi
  \fi
}
\DeclareRobustCommand\IfTargetDateBefore[1]{%
  \ifnum\pkgcls@innerdate <%
        \expandafter\@parse@version\expandafter0#1//00\@nil
    \typeout{Exclude code introduced on #1}%
    \expandafter\@firstoftwo
  \else
    \typeout{Include code introduced on #1}%
    \expandafter\@secondoftwo
  \fi
}
%%% From File: ltkeys.dtx
\ExplSyntaxOn
\group_begin:
  \cs_set_protected:Npn \__keys_tmp:nn #1#2
    {
      \quark_if_recursion_tail_stop:n {#1}
      \cs_new_eq:cc
        { \c__keys_props_root_str . #2 }
        { \c__keys_props_root_str . #1 }
      \__keys_tmp:nn
    }
  \__keys_tmp:nn
    { code:n }          { code }
    { legacy_if_set:n } { if }
    { legacy_if_set_inverse:n } { ifnot }
    { tl_set:N }        { store }
    { usage:n }         { usage }
    { \q_recursion_tail } { }
    \q_recursion_stop
\group_end:
\cs_new_protected:cpn { \c__keys_props_root_str .pass-to-packages }
  {
    \bool_if:NTF \l__keys_no_value_bool
      { \__keys_scope:n { true } }
      { \__keys_scope:n }
  }
\cs_new_protected:Npn \__keys_scope:n #1
  {
    \str_case:nnF {#1}
      {
        { true }
          { \__keys_scope:N \clist_put_right:NV }
        { false }
          { \__keys_scope:N \clist_remove_all:NV }
      }
      {
        \msg_error:nnnn { keys }
          { choice-unknown }
          { .pass-to-packages }
          {#1}
      }
  }
\cs_new_protected:Npn \__keys_scope:N #1
  {
    \exp_after:wN \__keys_find_key_module:wNN
      \l_keys_path_str \s__keys_stop
        \l_keys_key_tl \l_keys_key_str
    #1 \l__keys_forced_global_clist \l_keys_key_str
  }
\cs_generate_variant:Nn \clist_if_in:NnT { Ne }
\cs_generate_variant:Nn \clist_if_in:NnTF { Ne }
\cs_generate_variant:Nn \clist_put_right:Nn { Nv }
\clist_new:N \l__keys_class_only_clist
\clist_new:N \l__keys_forced_global_clist
\clist_new:N \l__keys_options_clist
\bool_new:N \l__keys_options_loading_bool
\cs_new_protected:Npn \__keys_options:n #1
  { \__keys_options_expand_module:Nn \__keys_options_aux:n {#1} }
\cs_new_protected:Npn \__keys_options_aux:n #1
  {
    \cs_gset_protected:cpn { opt@handler@\@currname.\@currext }
      { \ProcessKeyOptions [ #1 ] }
    \cs_set_protected:Npn \__keys_option_end: { }
    \clist_clear:N \l__keys_options_clist
    \__keys_options_global:n {#1}
    \__keys_options_local:
    \keys_if_exist:nnF {#1} { unknown }
      {
        \keys_define:nn {#1}
          {
            unknown .code:n =
              {
                \msg_error:nnxx { keys } { option-unknown }
                  { \l_keys_key_str } { \@currname }
              }
          }
        \cs_set_protected:Npn \__keys_option_end:
          { \keys_define:nn {#1} { unknown .undefine: } }
      }
    \bool_set_true:N \l__keys_options_loading_bool
    \clist_map_variable:NNn \l__keys_options_clist \CurrentOption
      { \keys_set:nV {#1} \CurrentOption }
    \bool_set_false:N \l__keys_options_loading_bool
    \AtEndOfPackage { \cs_set_eq:NN \@unprocessedoptions \scan_stop: }
    \__keys_option_end:
    \__keys_options_loaded:n {#1}
  }
\msg_new:nnnn { keys } { option-unknown }
  { Unknown~option~'#1'~for~package~#2. }
  {
    LaTeX~has~been~asked~to~set~an~option~called~'#1'~
    but~the~package~"\msg_module_name:n {#2}"~has~not~created~an~option~with~this~name.
  }
\cs_new_protected:Npn \__keys_options_global:n #1
  {
    \cs_if_eq:NNF \@raw@classoptionslist \scan_stop:
      {
        \cs_if_eq:NNTF \@currext \@clsextension
          { \__keys_options_class:n {#1} }
          { \__keys_options_package:n {#1} }
      }
  }
\cs_new_protected:Npn \__keys_options_class:n #1
  {
    \cs_if_free:cF { @raw@opt@ \@currname . \@currext }
      {
        \clist_map_inline:cn { @raw@opt@ \@currname . \@currext }
          {
            \exp_args:Ne \__keys_options_class:nnn
              { \tl_trim_spaces:e { \__keys_remove_equals:n {##1} } }
                {##1} {#1}
          }
      }
  }
\cs_new_protected:Npn \__keys_options_class:nnn #1#2#3
  {
    \keys_if_exist:nnTF {#3} {#1}
      {
        \__keys_options_class:nn {#1} {#2}
        \clist_put_right:Ne \l__keys_class_only_clist { \tl_to_str:n {#1} }
      }
      {
        \keys_if_exist:nnTF {#3} { unknown }
          { \__keys_options_class:nn {#1} {#2} }
          {
            \clist_if_in:NnF \@unusedoptionlist {#1}
              { \clist_put_right:Nn \@unusedoptionlist {#1} }
          }
      }
  }
\cs_new_protected:Npn \__keys_options_class:nn #1#2
  {
    \clist_remove_all:Nn \@unusedoptionlist {#1}
    \clist_put_right:Nn \l__keys_options_clist {#2}
  }
\cs_new_protected:Npn \__keys_options_package:n #1
  {
    \clist_map_inline:Nn \@raw@classoptionslist
      {
        \exp_args:Ne \__keys_options_package:nnn
          { \tl_trim_spaces:e { \__keys_remove_equals:n {##1} } }
          {##1} {#1}
      }
  }
\cs_new_protected:Npn \__keys_options_package:nnn #1#2#3
  {
    \keys_if_exist:nnT {#3} {#1}
      {
        \clist_if_in:NeTF \l__keys_class_only_clist { \tl_to_str:n {#1} }
          {
            \clist_if_in:NeT \l__keys_forced_global_clist { \tl_to_str:n {#1} }
              { \__keys_options_package:nn {#1} {#2} }
          }
          { \__keys_options_package:nn {#1} {#2} }
      }
   }
\cs_new_protected:Npn \__keys_options_package:nn #1#2
  {
    \clist_put_right:Nn \l__keys_options_clist {#2}
    \clist_remove_all:Nn \@unusedoptionlist {#1}
  }
\cs_new_protected:Npn \__keys_options_local:
  {
    \cs_if_eq:NNF \@currext \@clsextension
      {
        \cs_if_exist:cT { @raw@opt@ \@currname . \@currext }
          {
            \clist_put_right:Nv \l__keys_options_clist
              { @raw@opt@ \@currname . \@currext }
          }
      }
  }
\cs_new:Npn \__keys_remove_equals:n #1
  { \__keys_remove_equals:w #1 = \s__keys_stop }
\cs_new:Npn \__keys_remove_equals:w #1 = #2 \s__keys_stop { \exp_not:n {#1} }
\cs_generate_variant:Nn \keys_define:nn { nx }
\cs_new_protected:Npn \__keys_options_expand_module:Nn #1#2
  {
    \cs:w __keys_options_expand_module:nN \use:e { \cs_end: {#2} } #1
  }
\cs_new_protected:Npn \__keys_options_expand_module:nN #1#2
  { #2 {#1} }
\NewDocumentCommand \DeclareKeys { O { \@currname } +m }
  { \__keys_options_expand_module:Nn \keys_define:nn {#1} {#2} }
\NewDocumentCommand \DeclareUnknownKeyHandler { O { \@currname } +m }
  {
    \cs_set_protected:cpn { __keys_unknown_handler_ #1 :nn } ##1##2 {#2}
    \__keys_options_expand_module:Nn \keys_define:nx {#1}
      {
        unknown .code:n =
          \exp_not:N \exp_args:NV
            \exp_not:c { __keys_unknown_handler_ #1 :nn }
            \exp_not:N \l_keys_key_str {####1}
      }
  }
\NewDocumentCommand \ProcessKeyOptions { O { \@currname } }
  { \__keys_options:n {#1} }
\@onlypreamble \ProcessKeyOptions
\cs_new_protected:Npn \__keys_options_loaded:n #1
  {
    \prop_get:NnNT \l_keys_usage_load_prop {#1} \l__keys_tmpa_tl
      {
        \clist_map_inline:Nn \l__keys_tmpa_tl
          {
            \keys_define:nn {#1}
              {
                ##1 .code:n =
                  \__keys_options_loaded:nn {#1} {##1}
              }
          }
      }
  }
\cs_new_protected:Npn \__keys_options_loaded:nn #1#2
  {
    \bool_if:NTF \l__keys_options_loading_bool
      { \msg_warning:nnnn { keys } { load-option-ignored } }
      { \msg_error:nnnn { keys } { load-only } }
        {#1} {#2}
  }
\msg_new:nnn { keys } { load-option-ignored }
  {
    Package~"\msg_module_name:n {#1}"~has~already~been~loaded:~
    ignoring~load-time~option~"#2".
  }
\msg_new:nnnn { keys } { load-only }
  {
    Key~"#2"~may~only~be~used~during~loading~of~package~
    "\msg_module_name:n {#1}".
  }
  {
    LaTeX~was~asked~to~set~a~key~called~"#2",~but~this~is~only~allowed~
    in~the~optional~argument~when~loading~package~"\msg_module_name:n{#1}".
  }
\tl_gput_left:Nn \@kernel@after@begindocument
  {
    \prop_map_inline:Nn \l_keys_usage_preamble_prop
      {
        \clist_map_inline:nn {#2}
          {
            \keys_define:nn {#1}
              {
                ##1 .code:n =
                  \msg_error:nnn { keys } { preamble-only } {##1}
              }
          }
      }
  }
\msg_new:nnnn { keys } { preamble-only }
  { Key~"#1"~may~only~be~used~in~the~preamble. }
  {
    LaTeX~was~asked~to~set~a~key~called~"#1",~but~this~is~only~allowed~
    before~\begin{document}.~You~will~need~to~set~the~key~earlier.
  }
\NewDocumentCommand \SetKeys { O { \@currname } +m }
  { \__keys_options_expand_module:Nn \keys_set:nn {#1} {#2} }
\ExplSyntaxOff
%%% From File: ltfilehook.dtx
\ExplSyntaxOn
\tl_new:N \CurrentFile
\tl_new:N \CurrentFilePath
\tl_new:N \CurrentFileUsed
\tl_new:N \CurrentFilePathUsed
\ExplSyntaxOff
\ExplSyntaxOn
\cs_new:Npn \__filehook_file_parse_full_name:nN #1
  {
    \exp_args:Nf \file_parse_full_name_apply:nN
      {
        \exp_args:Nf \__filehook_full_name:nn
          { \file_full_name:n {#1} } {#1}
      }
  }
\cs_new:Npn \__filehook_full_name:nn #1 #2
  {
    \tl_if_empty:nTF {#1}
      { \tl_trim_spaces:n {#2} }
      { \tl_trim_spaces:n {#1} }
  }
\cs_new:Npn \__filehook_if_no_extension:nTF #1
  {
    \exp_args:Ne \tl_if_empty:nTF
      { \file_parse_full_name_apply:nN {#1} \use_iii:nnn }
  }
\cs_new_protected:Npn \__filehook_drop_extension:N #1
  {
    \tl_gset:Nx #1
      {
        \exp_args:NV \__filehook_file_parse_full_name:nN #1
          \__filehook_drop_extension_aux:nnn
      }
  }
\cs_new:Npn \__filehook_drop_extension_aux:nnn #1 #2 #3
   { \tl_if_empty:nF {#1} { #1 / } #2 }
\tl_new:N \l__filehook_internal_tl
\seq_if_exist:NF \g__filehook_input_file_seq
  { \seq_new:N \g__filehook_input_file_seq }
\cs_new_protected:Npn \__filehook_file_push:
  {
    \seq_gpush:Nx \g__filehook_input_file_seq
      {
        { \CurrentFilePathUsed } { \CurrentFileUsed }
        { \CurrentFilePath     } { \CurrentFile     }
      }
  }
\cs_new_protected:Npn \__filehook_file_pop:
  {
    \seq_gpop:NNTF \g__filehook_input_file_seq \l__filehook_internal_tl
      { \exp_after:wN \__filehook_file_pop_assign:nnnn \l__filehook_internal_tl }
      {
        \msg_error:nnn { latex2e } { should-not-happen }
          { Tried~to~pop~from~an~empty~file~name~stack. }
      }
  }
\cs_new_protected:Npn \__filehook_file_pop_assign:nnnn #1 #2 #3 #4
  {
    \tl_set:Nn \CurrentFilePathUsed {#1}
    \tl_set:Nn \CurrentFileUsed {#2}
    \tl_set:Nn \CurrentFilePath {#3}
    \tl_set:Nn \CurrentFile {#4}
  }
\ExplSyntaxOff
\let\InputIfFileExists\@undefined
\DeclareRobustCommand \InputIfFileExists[2]{%
  \IfFileExists{#1}%
    {%
      \@expl@@@filehook@file@push@@
      \@filehook@set@CurrentFile
      \expandafter\@swaptwoargs\expandafter
        {\expandafter\@input@file@exists@with@hooks
          \expandafter{\@filef@und}}%
        {#2}%
      \@expl@@@filehook@file@pop@@
    }%
}
\def\@input@file@exists@with@hooks#1{%
  \edef\reserved@a{%
    \@expl@@@filehook@file@pop@assign@@nnnn
      {\CurrentFilePathUsed}%
      {\CurrentFileUsed}%
      {\CurrentFilePath}%
      {\CurrentFile}}%
  \expandafter\@swaptwoargs\expandafter{\reserved@a}%
    {\edef\reserved@a{\unqu@tefilef@und#1\@nil}%
     \@addtofilelist{\string@makeletter\reserved@a}%
     \UseHook{file/before}%
     \UseHook{file/\CurrentFile/before}%
     \@@input #1% <- trailing space comes from \@filef@und
    }%
  \UseHook{file/\CurrentFile/after}%
  \UseHook{file/after}}
\def\unqu@tefilef@und"#1" \@nil{#1}
\NewHook{file/before}
\NewReversedHook{file/after}
\ExplSyntaxOn
\cs_new_protected:Npn \__filehook_subst_add:nn #1 #2
  {
    \group_begin:
      \cs_set:cpx { } { \exp_not:o { \cs:w\cs_end: } }
      \int_set:Nn \tex_escapechar:D { -1 }
      \cs_gset:cpx
        {
          @file-subst@
          \__filehook_subst_file_normalize:Nn \use_ii_iii:nnn {#1}
        }
        { \__filehook_subst_file_normalize:Nn \__filehook_file_name_compose:nnn
                                      {#2} }
    \group_end:
  }
\cs_new_protected:Npn \__filehook_subst_remove:n #1
  {
    \group_begin:
      \cs_set:cpx { } { \exp_not:o { \cs:w\cs_end: } }
      \int_set:Nn \tex_escapechar:D { -1 }
      \cs_undefine:c
        {
          @file-subst@
          \__filehook_subst_file_normalize:Nn \use_ii_iii:nnn {#1}
        }
    \group_end:
  }
\cs_new:Npn \__filehook_subst_file_normalize:Nn #1 #2
  {
    \exp_after:wN \__filehook_subst_empty_name_chk:NN
      \cs:w \exp_after:wN \cs_end:
        \cs:w \__filehook_file_parse_full_name:nN {#2} #1 \cs_end:
  }
\cs_new:Npn \__filehook_subst_empty_name_chk:NN #1 #2
  { \if_meaning:w #1 #2 .tex \else: \token_to_str:N #2 \fi: }
\cs_gset:Npn \use_ii_iii:nnn #1 #2 #3 {#2 #3}
\ExplSyntaxOff
\ExplSyntaxOn
\cs_new_eq:NN \declare@file@substitution   \__filehook_subst_add:nn
\cs_new_eq:NN \undeclare@file@substitution \__filehook_subst_remove:n
\ExplSyntaxOff
\def\set@curr@file{%
  \begingroup
    \set@curr@file@aux}
\edef\set@curr@file@nosearch{%
  \begingroup
    \let\noexpand\input@path\noexpand\@empty
    \csname seq_clear:N\endcsname
      \expandafter\noexpand\csname l_file_search_path_seq\endcsname
    \noexpand\set@curr@file@aux}
\def\set@curr@file@aux#1{%
    \escapechar\m@ne
    \let\protect\string
    \edef~{\string~}%
    \expandafter\def\csname\expandafter\endcsname
      \expandafter{\csname\endcsname}%
    \@expl@@@filehook@if@no@extension@@nTF{#1}%
      {\@tempswatrue}{\@tempswafalse}%
    \@kernel@make@file@csname\@curr@file
      \@expl@@@filehook@resolve@file@subst@@w {#1}%
    \@expl@@@filehook@if@file@replaced@@TF
      {\@kernel@make@file@csname\@curr@file@reqd
         \@expl@@@filehook@normalize@file@name@@w{#1}%
       \if@tempswa \@expl@@@filehook@drop@extension@@N\@curr@file@reqd \fi}%
      {\if@tempswa \@expl@@@filehook@drop@extension@@N\@curr@file \fi
       \global\let\@curr@file@reqd\@curr@file}%
    \@expl@@@filehook@clear@replacement@flag@@
  \endgroup}
\def\@kernel@make@file@csname#1#2#3{%
  \xdef#1{\expandafter\@set@curr@file@aux
    \csname\expandafter#2\@firstofone#3\@nil\endcsname}}
\long\def\@set@curr@file@aux#1{%
  \expandafter\ifx\csname\endcsname#1%
    .tex\else\string#1\fi}
\def\@filehook@set@CurrentFile{%
  \@expl@@@filehook@set@curr@file@@nNN{\@curr@file}%
    \CurrentFileUsed\CurrentFilePathUsed
  \ifx\@curr@file@reqd\@curr@file
    \let\CurrentFile\CurrentFileUsed
    \let\CurrentFilePath\CurrentFilePathUsed
  \else
    \@expl@@@filehook@set@curr@file@@nNN{\@curr@file@reqd}%
      \CurrentFile\CurrentFilePath
  \fi}
\ExplSyntaxOn
\cs_new_protected:Npn \__filehook_set_curr_file:nNN #1
  {
    \exp_args:Nf \__filehook_file_parse_full_name:nN {#1}
      \__filehook_set_curr_file_assign:nnnNN
  }
\cs_new_protected:Npn \__filehook_set_curr_file_assign:nnnNN #1 #2 #3 #4 #5
  {
    \str_set:Nn #5 {#1}
    \str_set:Nn #4 {#2#3}
  }
\ExplSyntaxOff
\ExplSyntaxOn
\cs_new:Npn \__filehook_resolve_file_subst:w #1 \@nil
  { \__filehook_file_parse_full_name:nN {#1} \__filehook_file_subst_begin:nnn }
\cs_new:Npn \__filehook_normalize_file_name:w #1 \@nil
  { \__filehook_file_parse_full_name:nN {#1} \__filehook_file_name_compose:nnn }
\cs_new:Npn \__filehook_file_name_compose:nnn #1 #2 #3
  { \tl_if_empty:nF {#1} { #1 / } #2#3 }
\flag_new:n { __filehook_file_replaced }
\cs_new:Npn \__filehook_if_file_replaced:TF #1 #2
  { \flag_if_raised:nTF { __filehook_file_replaced } {#1} {#2} }
\cs_new_protected:Npn \__filehook_clear_replacement_flag:
  { \flag_clear:n { __filehook_file_replaced } }
\cs_new:Npn \__filehook_file_subst_begin:nnn #1 #2 #3
  {
    \__filehook_file_subst_tortoise_hare:nn { #2#3 } { #2#3 }
      { \__filehook_file_name_compose:nnn {#1} {#2} {#3} }
  }
\ExplSyntaxOff
\ExplSyntaxOn
\cs_new:Npn \__filehook_file_subst_tortoise_hare:nn #1 #2 #3
  {
    \cs_if_exist:cTF { @file-subst@ #2 }
      {
        \flag_if_raised:nF { __filehook_file_replaced }
          { \flag_raise:n { __filehook_file_replaced } }
        \cs_if_exist:cTF { @file-subst@ \use:c { @file-subst@ #2 } }
          {
            \__filehook_file_subst_loop:cc
              { @file-subst@ #1 }
              { @file-subst@ \use:c { @file-subst@ #2 } }
          }
          { \use:c { @file-subst@ #2 } }
      }
      { #3 }
  }
\cs_new:Npn \__filehook_file_subst_loop:NN #1 #2
  {
    \token_if_eq_meaning:NNTF #1 #2
      {
        .tex
        \__filehook_file_subst_cycle_error:cN { @file-subst@ #1 } #1
      }
      { \__filehook_file_subst_tortoise_hare:nn {#1} {#2} {#2} }
  }
\cs_generate_variant:Nn \__filehook_file_subst_loop:NN { cc }
\cs_new:Npn \__filehook_file_subst_cycle_error:NN #1 #2
  {
    \msg_expandable_error:nnff { latex2e } { file-cycle }
      {#1} { \use:c { @file-subst@ #1 } }
    \token_if_eq_meaning:NNF #1 #2
      { \__filehook_file_subst_cycle_error:cN { @file-subst@ #1 } #2 }
  }
\cs_generate_variant:Nn \__filehook_file_subst_cycle_error:NN { c }
\msg_new:nnn { latex2e } { file-cycle }
  { File~loop!~#1~replaced~by~#2... }
\ExplSyntaxOff
\def\disable@package@load#1#2{%
  \global\@namedef{@pkg-disable@#1.\@pkgextension}{#2}}
\def\@disable@packageload@do#1#2{%
  \@ifundefined{@pkg-disable@#1}%
     {#2}%
     {\@nameuse{@pkg-disable@#1}%
      \@latex@info{Package '#1' has been disabled.%
       \MessageBreak Load request ignored}%
      \expandafter\@gobbletwo}}
\def\reenable@package@load#1{%
  \global\expandafter\let
  \csname @pkg-disable@#1.\@pkgextension \endcsname \@undefined}
\ExplSyntaxOn
\cs_new_eq:NN \@expl@@@filehook@if@no@extension@@nTF
              \__filehook_if_no_extension:nTF
\cs_new_eq:NN \@expl@@@filehook@set@curr@file@@nNN
              \__filehook_set_curr_file:nNN
\cs_new_eq:NN \@expl@@@filehook@resolve@file@subst@@w
              \__filehook_resolve_file_subst:w
\cs_new_eq:NN \@expl@@@filehook@normalize@file@name@@w
              \__filehook_normalize_file_name:w
\cs_new_eq:NN \@expl@@@filehook@if@file@replaced@@TF
              \__filehook_if_file_replaced:TF
\cs_new_eq:NN \@expl@@@filehook@clear@replacement@flag@@
              \__filehook_clear_replacement_flag:
\cs_new_eq:NN \@expl@@@filehook@drop@extension@@N
              \__filehook_drop_extension:N
\cs_new_eq:NN \@expl@@@filehook@file@push@@
              \__filehook_file_push:
\cs_new_eq:NN \@expl@@@filehook@file@pop@@
              \__filehook_file_pop:
\cs_new_eq:NN \@expl@@@filehook@file@pop@assign@@nnnn
              \__filehook_file_pop_assign:nnnn
\ExplSyntaxOff
\declare@file@substitution{atveryend.sty}{atveryend-ltx.sty}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%
%% Copyright (C) 2020-2025
%% Frank Mittelbach, The LaTeX Project
%%
%%% From File: ltshipout.dtx
\ExplSyntaxOn
\bool_new:N \g__shipout_debug_bool
\cs_new_eq:NN \__shipout_debug:n  \use_none:n
\cs_new_protected:Npn \shipout_debug_on:
  {
    \bool_gset_true:N \g__shipout_debug_bool
    \__shipout_debug_gset:
  }
\cs_new_protected:Npn \shipout_debug_off:
  {
    \bool_gset_false:N \g__shipout_debug_bool
    \__shipout_debug_gset:
  }
\cs_new_protected:Npn \__shipout_debug_gset:
  {
    \cs_gset_protected:Npx \__shipout_debug:n ##1
      { \bool_if:NT \g__shipout_debug_bool {##1} }
  }
\box_new:N  \l_shipout_box
\cs_set_eq:NN \ShipoutBox \l_shipout_box
\box_new:N  \l__shipout_raw_box
\sys_if_engine_luatex:TF
  {
    \newprotectedluacmd \__shipout_finalize_box:
    \exp_args:Nx \everyjob {
      \exp_not:V \everyjob
      \exp_not:N \lua_now:n {
        luatexbase.create_callback('pre_shipout_filter', 'list')
        local~call, getbox, setbox = luatexbase.call_callback, tex.getbox, tex.setbox~
        lua.get_functions_table()[\the \allocationnumber] = function()
          local~head = getbox(\the \l_shipout_box)
          local~result = call('pre_shipout_filter', head)
          if~not (result == head) then~
            setbox(\the \l_shipout_box, result~or~nil)
          end~
        end
      }
    }
  } {
    \cs_set_eq:NN \__shipout_finalize_box: \scan_stop:
  }
\cs_set_protected:Npn \__shipout_execute: {
  \tl_set:Nx \l__shipout_group_level_tl
     { \int_value:w \tex_currentgrouplevel:D }
  \tex_afterassignment:D \__shipout_execute_test_level:
  \tex_setbox:D \l_shipout_box
}
\cs_gset_eq:NN \shipout \__shipout_execute:
\tl_new:N \l__shipout_group_level_tl
\cs_new:Npn \__shipout_execute_test_level: {
  \int_compare:nNnT
     \l__shipout_group_level_tl < \tex_currentgrouplevel:D
     \tex_aftergroup:D \__shipout_execute_cont:
}
\cs_new:Npn \__shipout_execute_cont: {
  \__shipout_execute_main_cont:Nnnn
     \l_shipout_box
     { \hook_use:n {shipout/before} }
     { \hook_if_empty:nF {shipout/foreground}
         { \__shipout_add_foreground_picture:n
             { \hook_use:n {shipout/foreground} } }
       \bool_lazy_and:nnF
         { \hook_if_empty_p:n {shipout/background} }
         { \tl_if_empty_p:N \@kernel@before@shipout@background }
         { \__shipout_add_background_picture:n
           { \@kernel@before@shipout@background
             \hook_use:n {shipout/background}
             \@kernel@after@shipout@background }
         }
     }
     { \hook_use:n {shipout/after} }
}
\cs_new:Npn \__shipout_execute_main_cont:Nnnn #1#2#3#4 {
  \box_if_empty:NTF #1
    { \@latex@warning@no@line{ Ignoring~ void~ shipout~ box } }
    {
                                              % \DiscardShipoutBox on doc-level
      \cs_set_eq:NN \__shipout_saved_protect: \protect
      \set@typeset@protect
      \__shipout_get_box_size:N #1
      #2
      \int_gincr:N \g_shipout_totalpages_int
      \bool_if:NTF \g__shipout_discard_bool
        { \@latex@info@no@line{Completed~ page~ discarded}
          \bool_gset_false:N \g__shipout_discard_bool
          \tex_deadcycles:D \c_zero_int
        }
        { \box_if_empty:NTF #1
            { \@latex@warning@no@line { Ignoring~ void~ shipout~ box.
                 \MessageBreak The~ shipout~ box~ was~ voided~ by~ hook~ code }
            }
            {
              \int_gincr:N \g_shipout_readonly_int
              \__shipout_debug:n {
                \typeout{Absolute~ page~ =~ \int_use:N \g_shipout_readonly_int
                         \space (target:~ \@abspage@last)}
              }
              \__shipout_get_box_size:N #1
              \__shipout_run_firstpage_hook:
              #3
              \__shipout_add_firstpage_specials:
              \int_compare:nNnT \@abspage@last = \g_shipout_readonly_int
                { \bool_lazy_and:nnF
                    { \hook_if_empty_p:n {shipout/lastpage} }
                    { \tl_if_empty_p:N \@kernel@after@shipout@lastpage }
                    { \__shipout_debug:n { \typeout{Executing~ lastpage~ hook~
                          on~ page~ \int_use:N \g_shipout_readonly_int } }
                      \__shipout_add_foreground_box:n
                          { \UseHook{shipout/lastpage}
                            \@kernel@after@shipout@lastpage }
                      \bool_gset_true:N \g__shipout_lastpage_handled_bool
                    }
                }
              \hook_use:n {shipout}
              \__shipout_finalize_box:
              \cs_set_eq:NN \protect \exp_not:N
              \tex_shipout:D \box_use:N \l_shipout_box
              \__shipout_drop_firstpage_specials:
              \set@typeset@protect
              #4
            }
        }
      \cs_set_eq:NN \protect \__shipout_saved_protect:
    }
}
\cs_set_protected:Npn \__shipout_execute_raw: {
  \tl_set:Nx \l__shipout_group_level_tl
     { \int_value:w \tex_currentgrouplevel:D }
  \tex_afterassignment:D \__shipout_execute_test_level_raw:
  \tex_setbox:D \l__shipout_raw_box
}
\cs_new:Npn \__shipout_execute_test_level_raw: {
  \int_compare:nNnT
     \l__shipout_group_level_tl < \tex_currentgrouplevel:D
     \tex_aftergroup:D \__shipout_execute_nohooks_cont:
}
\cs_new:Npn \__shipout_execute_nohooks_cont: {
  \__shipout_execute_main_cont:Nnnn \l__shipout_raw_box
     {} { \__shipout_debug:n{ \typeout{Doing~ raw~ shipout~ ...} }
          \box_set_eq:NN \l_shipout_box \l__shipout_raw_box } {}
}

\cs_gset_eq:NN \RawShipout \__shipout_execute_raw:
\cs_new_eq:NN  \__shipout_saved_protect: \protect
\hook_new:n{shipout/before}
\hook_new:n{shipout}
\hook_new:n{shipout/after}
\hook_new:n{shipout/foreground}
\hook_new:n{shipout/background}
\hook_new:n{shipout/firstpage}
\hook_new:n{shipout/lastpage}
\let\@kernel@after@shipout@lastpage\@empty
\let\@kernel@before@shipout@background\@empty
\let\@kernel@after@shipout@background\@empty
\cs_new:Npn \__shipout_run_firstpage_hook: {
  \hook_if_empty:nTF {shipout/firstpage}
       {
         \cs_gset_eq:NN \__shipout_add_firstpage_specials:  \prg_do_nothing:
         \cs_gset_eq:NN \__shipout_drop_firstpage_specials: \prg_do_nothing:
       }
       {
         \hbox_set:Nn \l__shipout_firstpage_box { \UseHook{shipout/firstpage} }
       }
  \cs_gset_eq:NN \__shipout_run_firstpage_hook: \prg_do_nothing:
  \cs_gset:Npn \__shipout_add_firstpage_material:Nn ##1 ##2 {
    \@latex@warning{ First~ page~ is~ already~ shipped~ out,~ ignoring
                     \MessageBreak \string##1 }
  }
}
\cs_new:Npn \__shipout_add_firstpage_specials: {
  \box_set_eq:NN \l__shipout_raw_box \l_shipout_box
  \__shipout_add_background_box:n { \hbox_unpack_drop:N \l__shipout_firstpage_box }
  \cs_gset_eq:NN \__shipout_add_firstpage_specials: \prg_do_nothing:
}
\cs_new:Npn \__shipout_drop_firstpage_specials: {
    \box_set_eq:NN \l_shipout_box \l__shipout_raw_box
    \cs_gset_eq:NN \__shipout_drop_firstpage_specials:  \prg_do_nothing:
  }

\box_new:N \l__shipout_firstpage_box

\bool_new:N \g__shipout_lastpage_handled_bool
\cs_new:Npn \__shipout_add_firstpage_material:Nn #1#2 {
   \AddToHook{shipout/firstpage}{#2}
}
\cs_new:Npn \__shipout_get_box_size:N #1 {
  \dim_set:Nn \l_shipout_box_ht_dim { \box_ht:N #1 }
  \dim_set:Nn \l_shipout_box_dp_dim { \box_dp:N #1 }
  \dim_set:Nn \l_shipout_box_wd_dim { \box_wd:N #1 }
  \dim_set:Nn \l_shipout_box_ht_plus_dp_dim
      { \l_shipout_box_ht_dim + \l_shipout_box_dp_dim }
}
\dim_new:N \l_shipout_box_ht_dim
\dim_new:N \l_shipout_box_dp_dim
\dim_new:N \l_shipout_box_wd_dim
\dim_new:N \l_shipout_box_ht_plus_dp_dim
\bool_new:N \g__shipout_discard_bool
\box_new:N \l__shipout_tmp_box
\tl_new:N  \l__shipout_saved_badness_tl
\cs_new:Npn \__shipout_add_background_box:n #1
{ \__shipout_get_box_size:N \l_shipout_box
  \box_if_vertical:NTF \l_shipout_box
      {
        \tl_set:Nx \l__shipout_saved_badness_tl
           { \vfuzz=\the\vfuzz\relax
             \vbadness=\the\vbadness\relax }
        \vfuzz=\c_max_dim
        \vbadness=\c_max_int
        \vbox_set_to_ht:Nnn \l_shipout_box \l_shipout_box_ht_plus_dp_dim
             {
               \hbox_set:Nn \l__shipout_tmp_box
                    { \l__shipout_saved_badness_tl #1 }
               \box_set_wd:Nn \l__shipout_tmp_box \c_zero_dim
               \box_set_ht:Nn \l__shipout_tmp_box \c_zero_dim
               \box_set_dp:Nn \l__shipout_tmp_box \c_zero_dim
               \skip_zero:N \baselineskip
               \skip_zero:N \lineskip
               \skip_zero:N \lineskiplimit
               \box_use:N \l__shipout_tmp_box
               \vbox_unpack:N \l_shipout_box
               \kern \c_zero_dim
             }
        \box_set_ht:Nn \l_shipout_box \l_shipout_box_ht_dim
        \box_set_dp:Nn \l_shipout_box \l_shipout_box_dp_dim
        \l__shipout_saved_badness_tl
      }
      {
        \box_if_horizontal:NT \l_shipout_box
            {
              \tl_set:Nx \l__shipout_saved_badness_tl
                 { \hfuzz=\the\hfuzz\relax
                   \hbadness=\the\hbadness\relax }
              \hfuzz=\c_max_dim
              \hbadness=\c_max_int
              \hbox_set_to_wd:Nnn \l_shipout_box \l_shipout_box_wd_dim
                   {
                     \hbox_set:Nn \l__shipout_tmp_box
                          { \l__shipout_saved_badness_tl #1 }
                     \box_set_wd:Nn \l__shipout_tmp_box \c_zero_dim
                     \box_set_ht:Nn \l__shipout_tmp_box \c_zero_dim
                     \box_set_dp:Nn \l__shipout_tmp_box \c_zero_dim
                     \box_move_up:nn
                         \l_shipout_box_ht_dim
                         { \box_use:N \l__shipout_tmp_box }
                     \hbox_unpack:N \l_shipout_box
                   }
              \l__shipout_saved_badness_tl
            }
      }
}
\cs_new:Npn \__shipout_add_foreground_box:n #1
{
  \box_if_vertical:NTF \l_shipout_box
    {
      \tl_set:Nx \l__shipout_saved_badness_tl
         { \vfuzz=\the\vfuzz\relax
           \vbadness=\the\vbadness\relax }
      \vfuzz=\c_max_dim
      \vbadness=\c_max_int
      \vbox_set_to_ht:Nnn \l_shipout_box \l_shipout_box_ht_plus_dp_dim
           {
             \hbox_set:Nn \l__shipout_tmp_box
                  { \l__shipout_saved_badness_tl #1 }
             \box_set_wd:Nn \l__shipout_tmp_box \c_zero_dim
             \box_set_ht:Nn \l__shipout_tmp_box \c_zero_dim
             \box_set_dp:Nn \l__shipout_tmp_box \c_zero_dim
             \skip_zero:N \baselineskip
             \skip_zero:N \lineskip
             \skip_zero:N \lineskiplimit
             \vbox_unpack:N \l_shipout_box
             \kern -\l_shipout_box_ht_plus_dp_dim
             \box_use:N \l__shipout_tmp_box
             \kern  \l_shipout_box_ht_plus_dp_dim
           }
      \l__shipout_saved_badness_tl
      \box_set_ht:Nn \l_shipout_box \l_shipout_box_ht_dim
      \box_set_dp:Nn \l_shipout_box \l_shipout_box_dp_dim
    }
    {
      \box_if_horizontal:NT \l_shipout_box
        {
          \tl_set:Nx \l__shipout_saved_badness_tl
            { \hfuzz=\the\hfuzz\relax
              \hbadness=\the\hbadness\relax }
          \hfuzz=\c_max_dim
          \hbadness=\c_max_int
          \hbox_set_to_wd:Nnn \l_shipout_box \l_shipout_box_wd_dim
               {
                 \hbox_unpack:N \l_shipout_box
                 \kern -\box_wd:N \l_shipout_box
                 \hbox_set:Nn \l__shipout_tmp_box
                     { \l__shipout_saved_badness_tl #1 }
                 \box_set_wd:Nn \l__shipout_tmp_box \c_zero_dim
                 \box_set_ht:Nn \l__shipout_tmp_box \c_zero_dim
                 \box_set_dp:Nn \l__shipout_tmp_box \c_zero_dim
                 \box_move_up:nn { \box_ht:N \l_shipout_box }
                               { \box_use:N \l__shipout_tmp_box }
                 \kern \box_wd:N \l_shipout_box
               }%
               \l__shipout_saved_badness_tl
        }
    }
}
\cs_new:Npn \__shipout_init_page_origins: {
  \tl_const:Nx \c__shipout_horigin_tl
     {
       \cs_if_exist_use:NTF \pdfvariable { horigin }
          { \cs_if_exist_use:NF \pdfhorigin { 1in } }
     }
  \tl_const:Nx \c__shipout_vorigin_tl
     {
       \cs_if_exist_use:NTF \pdfvariable { vorigin }
          { \cs_if_exist_use:NF \pdfvorigin { 1in } }
     }
  \cs_gset_eq:NN \__shipout_init_page_origins: \prg_do_nothing:
}
\cs_new:Npn \__shipout_picture_overlay:n #1 {
    \__shipout_init_page_origins:
    \kern -\c__shipout_horigin_tl \scan_stop:
    \vbox_to_zero:n {
      \kern -\c__shipout_vorigin_tl \scan_stop:
      \unitlength 1pt \scan_stop:
      \hbox_set_to_wd:Nnn \l__shipout_tmp_box \c_zero_dim
                          { \ignorespaces #1 \hss }
      \box_set_ht:Nn \l__shipout_tmp_box \c_zero_dim
      \box_set_dp:Nn \l__shipout_tmp_box \c_zero_dim
      \box_use:N \l__shipout_tmp_box
      \tex_vss:D
    }
}
\cs_new:Npn \__shipout_add_background_picture:n #1 {
   \__shipout_add_background_box:n { \__shipout_picture_overlay:n {#1} }
}
\cs_new:Npn \__shipout_add_foreground_picture:n #1 {
   \__shipout_add_foreground_box:n { \__shipout_picture_overlay:n {#1} }
}
\cs_new_protected:Npn \shipout_discard: {
  \bool_gset_true:N \g__shipout_discard_bool
}
\int_new:N \g_shipout_readonly_int
\cs_new_eq:NN \ReadonlyShipoutCounter  \g_shipout_readonly_int
\int_new:N \g_shipout_totalpages_int
\cs_new_eq:NN \c@totalpages \g_shipout_totalpages_int
\cs_new:Npn \thetotalpages { \arabic{totalpages} }
\xdef\@abspage@last{\number\maxdimen}
\g@addto@macro \@kernel@after@enddocument {
  \int_compare:nNnT \@abspage@last = \maxdimen
    {
      \xdef\@abspage@last{ \int_eval:n {\g_shipout_readonly_int + 1} }
    }
}
\g@addto@macro \@kernel@after@enddocument@afterlastpage {
  \int_compare:nNnF \g_shipout_readonly_int = 0
    {
     \if@filesw
        \iow_now:Nx \@auxout {
          \gdef\string\@abspage@last {\int_use:N \g_shipout_readonly_int}}
     \fi
      \bool_if:NTF \g__shipout_lastpage_handled_bool
         {
           \int_compare:nNnF \@abspage@last = \g_shipout_readonly_int
            {
              \@latex@warning@no@line{Hook~ 'shipout/lastpage'~ executed~
                on~ wrong~ page~ (\@abspage@last\space not~
                \int_use:N\g_shipout_readonly_int).\MessageBreak
                Rerun~ to~ correct~ this}%
            }
         }
         {
          \bool_lazy_and:nnF
            { \hook_if_empty_p:n {shipout/lastpage} }
            { \tl_if_empty_p:N \@kernel@after@shipout@lastpage }
            {
              \tex_shipout:D\vbox to\textheight
                {
                  \hbox:n { \UseHook{shipout/lastpage}
                            \@kernel@after@shipout@lastpage }
                  \__shipout_excuse_extra_page:
                  \null
                }
              \cs_gset_eq:NN \@extra@page@added \relax
            }
         }
     }
}
\cs_new:Npn \__shipout_excuse_extra_page: {
  \vfil
  \begin{center}
    \bfseries Temporary~ page!
  \end{center}
    \LaTeX{}~ was~ unable~ to~ guess~ the~ total~ number~ of~ pages~
    correctly.~ ~ As~ there~ was~ some~ unprocessed~ data~ that~
    should~ have~ been~ added~ to~ the~ final~ page~ this~ extra~
    page~ has~ been~ added~ to~ receive~ it.
    \par
    If~ you~ rerun~ the~ document~ (without~ altering~ it)~ this~
    surplus~ page~ will~ go~ away,~ because~ \LaTeX{}~ now~ knows~
    how~ many~ pages~ to~ expect~ for~ this~ document.
  \vfil
}
\def\PreviousTotalPages{0}
\g@addto@macro\@kernel@before@begindocument
  {\ifnum\@abspage@last<\maxdimen
     \xdef\PreviousTotalPages{\@abspage@last}\fi}
\cs_new_eq:NN \DiscardShipoutBox \shipout_discard:
\cs_set_protected:Npn \AtBeginDvi
                      {\__shipout_add_firstpage_material:Nn \AtBeginDvi}
\cs_new_eq:NN \DebugShipoutsOn  \shipout_debug_on:
\cs_new_eq:NN \DebugShipoutsOff \shipout_debug_off:
\cs_set_eq:NN \@expl@@@shipout@add@firstpage@material@@Nn
              \__shipout_add_firstpage_material:Nn
\cs_set_eq:NN \@expl@@@shipout@add@background@box@@n
              \__shipout_add_background_box:n
\cs_set_eq:NN \@expl@@@shipout@add@foreground@box@@n
              \__shipout_add_foreground_box:n
\cs_set_eq:NN \@expl@@@shipout@add@background@picture@@n
              \__shipout_add_background_picture:n
\cs_set_eq:NN \@expl@@@shipout@add@foreground@picture@@n
              \__shipout_add_foreground_picture:n
\ExplSyntaxOff
\ExplSyntaxOn
\cs_new_protected:Npn \AtEndDvi #1 {\AddToHook{shipout/lastpage}{#1}}
\ExplSyntaxOff
\disable@package@load{atenddvi}
   {\PackageWarning{atenddvi}
     {Functionality of this package is already\MessageBreak
      provided by LaTeX.\MessageBreak\MessageBreak
      It is there no longer necessary to load it\MessageBreak
      and you can safely remove it.\MessageBreak
      Found on}}
\declare@file@substitution{atbegshi.sty}{atbegshi-ltx.sty}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% From File: ltoutput.dtx
\expandafter\let\csname ver@autoout1.sty\endcsname\fmtversion
\message{output,}
\maxdeadcycles = 100
\let\@elt\relax
\def\@next#1#2#3#4{\ifx#2\@empty #4\else
   \expandafter\@xnext #2\@@#1#2#3\fi}
\def\@xnext \@elt #1#2\@@#3#4{\def#3{#1}\gdef#4{#2}}
\def\@testfalse{\global\let\if@test\iffalse}
\def\@testtrue {\global\let\if@test\iftrue}
\@testfalse
\def\@bitor#1#2{\@testfalse {\let\@elt\@xbitor
   \@tempcnta #1\relax #2}}
\def\@xbitor #1{\@tempcntb \count#1
   \ifnum \@tempcnta =\z@
   \else
     \divide\@tempcntb\@tempcnta
     \ifodd\@tempcntb \@testtrue\fi
   \fi}
\let\@elt\newinsert
\def\@freelist{%
  \@elt\bx@A\@elt\bx@B\@elt\bx@C\@elt\bx@D\@elt\bx@E
  \@elt\bx@F\@elt\bx@G\@elt\bx@H\@elt\bx@I\@elt\bx@J
  \@elt\bx@K\@elt\bx@L\@elt\bx@M\@elt\bx@N
  \@elt\bx@O\@elt\bx@P\@elt\bx@Q\@elt\bx@R}
\@freelist
\ifx\numexpr\@undefined\else
\def\reserved@a{%
  \@elt\bx@S\@elt\bx@T\@elt\bx@U\@elt\bx@V
  \@elt\bx@W\@elt\bx@X\@elt\bx@Y\@elt\bx@Z
  \@elt\bx@AA\@elt\bx@BB\@elt\bx@CC\@elt\bx@DD\@elt\bx@EE
  \@elt\bx@FF\@elt\bx@GG\@elt\bx@HH\@elt\bx@II\@elt\bx@JJ
  \@elt\bx@KK\@elt\bx@LL\@elt\bx@MM\@elt\bx@NN
  \@elt\bx@OO\@elt\bx@PP\@elt\bx@QQ\@elt\bx@RR
  \@elt\bx@SS\@elt\bx@TT\@elt\bx@UU\@elt\bx@VV
  \@elt\bx@WW\@elt\bx@XX\@elt\bx@YY\@elt\bx@ZZ}
\reserved@a
\def\@elt{\noexpand\@elt\noexpand}
\edef\@freelist{\@freelist\reserved@a}
\fi
\let\reserved@a\relax
\let\@elt\relax
\gdef\@toplist{}
\gdef\@botlist{}
\gdef\@midlist{}
\gdef\@currlist{}
\gdef\@deferlist{}
\gdef\@dbltoplist{}
\gdef\@dbldeferlist{}
\newdimen\topmargin
\newdimen\oddsidemargin
\newdimen\evensidemargin
\let\@themargin=\oddsidemargin
\newdimen\headheight
\newdimen\headsep
\newdimen\footskip
\newdimen\textheight
\newdimen\textwidth
\newdimen\columnwidth
\newdimen\columnsep
\newdimen\columnseprule
\newdimen\marginparwidth
\newdimen\marginparsep
\newdimen\marginparpush
\newbox\@begindvibox
\newdimen\@maxdepth
\@maxdepth = \maxdepth
\newdimen\paperheight
\newdimen\paperwidth
\newdimen\stockheight
\newdimen\stockwidth
\newif \if@insert
\newif \if@fcolmade
\newif \if@specialpage \@specialpagefalse
\newif \if@firstcolumn \@firstcolumntrue
\newif \if@twocolumn   \@twocolumnfalse
\newif \if@twoside     \@twosidefalse
\newif \if@reversemargin \@reversemarginfalse
\newif \if@mparswitch  \@mparswitchfalse
\newcount \col@number
\col@number \@ne
\newcount\@topnum
\newdimen\@toproom
\newcount\@dbltopnum
\newdimen\@dbltoproom
\newcount\@botnum
\newdimen\@botroom
\newcount\@colnum
\newdimen\@textmin
\newdimen\@fpmin
\newdimen\@colht
\newdimen\@colroom
\newdimen\@pageht
\newdimen\@pagedp
\newdimen\@mparbottom \@mparbottom\z@
\newcount\@currtype
\newbox\@outputbox
\newbox\@leftcolumn
\newbox\@holdpg
\def\@thehead{\@oddhead} % initialization
\def\@thefoot{\@oddfoot}
\def\clearpage{%
  \ifvmode
    \ifnum \@dbltopnum =\m@ne
      \ifdim \pagetotal <\topskip
        \hbox{}%
      \fi
    \fi
  \fi
  \newpage
  \write\m@ne{}%
  \vbox{}%
  \penalty -\@Mi
}
\def\cleardoublepage{\clearpage\if@twoside \ifodd\c@page\else
    \hbox{}\newpage\if@twocolumn\hbox{}\newpage\fi\fi\fi}
\def\onecolumn{%
  \clearpage
  \global\columnwidth\textwidth
  \global\hsize\columnwidth
  \global\linewidth\columnwidth
  \global\@twocolumnfalse
  \col@number \@ne
  \@floatplacement}
\def \newpage {%
  \if@noskipsec
    \ifx \@nodocument\relax
      \leavevmode
      \global \@noskipsecfalse
    \fi
  \fi
  \if@inlabel
    \leavevmode
    \global \@inlabelfalse
  \fi
  \if@nobreak \@nobreakfalse \everypar{}\fi
  \par
  \ifdim\prevdepth>\z@
     \vskip -%
       \ifdim\prevdepth>\maxdepth
         \maxdepth
       \else
         \prevdepth
       \fi
  \fi
  \vfil
  \penalty -\@M}
\def \@emptycol {\vbox{}\penalty -\@M}
\def \twocolumn {%
  \clearpage
  \global\columnwidth\textwidth
  \global\advance\columnwidth-\columnsep
  \global\divide\columnwidth\tw@
  \global\hsize\columnwidth
  \global\linewidth\columnwidth
  \global\@twocolumntrue
  \global\@firstcolumntrue
  \col@number \tw@
  \@ifnextchar [\@topnewpage\@floatplacement
}
\long\def \@topnewpage [#1]{%
  \@nodocument
  \@next\@currbox\@freelist{}{}%
  \global \setbox\@currbox
    \color@vbox
      \normalcolor
      \vbox {%
        \hsize\textwidth
        \@parboxrestore
        \col@number \@ne
        #1%
        \vskip -\dbltextfloatsep
             }%
    \color@endbox
  \ifdim \ht\@currbox>\textheight
    \ht\@currbox \textheight
  \fi
  \global \count\@currbox \tw@
  \@tempdima -\ht\@currbox
  \advance \@tempdima -\dbltextfloatsep
  \global \advance \@colht \@tempdima
  \ifx \@dbltoplist \@empty
  \else
    \@latex@error{Float(s) lost}\@ehb
    \let \@dbltoplist \@empty
  \fi
  \@cons \@dbltoplist \@currbox
  \global \@dbltopnum \m@ne
  \ifdim \@colht<2.5\baselineskip
    \@latex@warning@no@line {Optional argument of \noexpand\twocolumn
                too tall on page \thepage}%
    \@emptycol
    \if@firstcolumn
    \else
      \@emptycol
    \fi
  \else
    \global \vsize \@colht
    \global \@colroom \@colht
    \@floatplacement
  \fi
}
\output {%
  \let \par \@@par
  \ifnum \outputpenalty<-\@M
    \@specialoutput
  \else
    \@makecol
    \@opcol
    \@startcolumn
    \@whilesw \if@fcolmade \fi
      {%
       \@opcol\@startcolumn}%
  \fi
  \ifnum \outputpenalty>-\@Miv
    \ifdim \@colroom<1.5\baselineskip
      \ifdim \@colroom<\textheight
        \@latex@warning@no@line {Text page \thepage\space
                               contains only floats}%
        \@emptycol
      \else
        \global \vsize \@colroom
      \fi
    \else
      \global \vsize \@colroom
    \fi
  \else
    \global \vsize \maxdimen
  \fi
}
\gdef\@specialoutput{%
   \ifnum \outputpenalty>-\@Mii
     \@doclearpage
   \else
     \ifnum \outputpenalty<-\@Miii
       \ifnum \outputpenalty<-\@MM \deadcycles \z@ \fi
       \global \setbox\@holdpg \vbox {\unvbox\@cclv}%
     \else
       \global \setbox\@holdpg \vbox{%
                      \unvbox\@holdpg
                      \unvbox\@cclv
                      \setbox\@tempboxa \lastbox
                      \unskip
                                     }%
       \@pagedp \dp\@holdpg
       \@pageht \ht\@holdpg
       \unvbox \@holdpg
       \@next\@currbox\@currlist{%
         \ifnum \count\@currbox>\z@
           \advance \@pageht \@pagedp
           \ifvoid\footins \else
             \advance \@pageht \ht\footins
             \advance \@pageht \skip\footins
             \advance \@pageht \dp\footins
           \fi
           \ifvbox \@kludgeins
             \ifdim \wd\@kludgeins=\z@
               \advance \@pageht \ht\@kludgeins
             \fi
           \fi
           \@reinserts
           \@addtocurcol
         \else
           \@reinserts
           \@addmarginpar
         \fi
         }\@latexbug
       \ifnum \outputpenalty<\z@
         \if@nobreak
           \nobreak
         \else
           \addpenalty \interlinepenalty
         \fi
       \fi
     \fi
   \fi
}
\def\@testwrongwidth #1{%
  \ifdim\dp#1=\f@depth
  \else
    \global\@testtrue
  \fi}%
\let\f@depth\z@
\def \@doclearpage {%
     \ifvoid\footins
       \ifvbox\@kludgeins
         {\setbox \@tempboxa \box \@kludgeins}%
       \fi
       \setbox\@tempboxa\vsplit\@cclv to\z@ \unvbox\@tempboxa
       \setbox\@tempboxa\box\@cclv
       \xdef\@deferlist{\@toplist\@botlist\@deferlist}%
       \global \let \@toplist \@empty
       \global \let \@botlist \@empty
       \global \@colroom \@colht
       \ifx \@currlist\@empty
       \else
          \@latex@error{Float(s) lost}\@ehb
          \global \let \@currlist \@empty
       \fi
       \@makefcolumn\@deferlist
       \@whilesw\if@fcolmade \fi{\@opcol\@makefcolumn\@deferlist}%
       \if@twocolumn
         \if@firstcolumn
           \xdef\@deferlist{\@dbltoplist\@deferlist}%
           \global \let \@dbltoplist \@empty
           \global \@colht \textheight
           \begingroup
              \@dblfloatplacement
              \@makefcolumn\@deferlist
              \@whilesw\if@fcolmade \fi{\@outputpage
                                        \@makefcolumn\@deferlist}%
           \endgroup
         \else
           \vbox{}\clearpage
         \fi
       \fi
       \ifx\@deferlist\@empty \else\clearpage \fi
     \else
       \setbox\@cclv\vbox{\box\@cclv\vfil}%
       \@makecol\@opcol
       \clearpage
     \fi
}%
\def \@opcol {%
  \if@twocolumn
    \@expl@@@mark@update@dblcol@structures@@
    \@outputdblcol
  \else
    \@expl@@@mark@update@singlecol@structures@@
    \@outputpage
  \fi
  \global \@mparbottom \z@ \global \@textfloatsheight \z@
  \@floatplacement
}
\gdef \@makecol {%
   \ifvoid\footins
     \setbox\@outputbox \box\@cclv
   \else
     \setbox\@outputbox \vbox {%
       \boxmaxdepth \@maxdepth
       \unvbox \@cclv
       \vskip \skip\footins
       \color@begingroup
         \normalcolor
         \footnoterule
         \unvbox \footins
       \color@endgroup
       }%
   \fi
   \let\@elt\relax
   \xdef\@freelist{\@freelist\@midlist}%
   \global \let \@midlist \@empty
   \@combinefloats
   \ifvbox\@kludgeins
     \@makespecialcolbox
   \else
     \setbox\@outputbox \vbox to\@colht {%
       \@texttop
       \dimen@ \dp\@outputbox
       \unvbox \@outputbox
       \vskip -\dimen@
       \@textbottom
       }%
   \fi
   \global \maxdepth \@maxdepth
}
\gdef \@reinserts{%
  \ifvoid\footins\else\insert\footins{\unvbox\footins}\fi
  \ifvbox\@kludgeins\insert\@kludgeins
                      {\unvbox\@kludgeins}\fi
}
\gdef \@makespecialcolbox {%
   \setbox\@outputbox \vbox {%
     \@texttop
     \dimen@ \dp\@outputbox
     \unvbox\@outputbox
     \vskip-\dimen@
     }%
   \@tempdima \@colht
   \ifdim \wd\@kludgeins>\z@
     \advance \@tempdima -\ht\@outputbox
     \advance \@tempdima \pageshrink
     \setbox\@outputbox \vbox to \@colht {%
       \unvbox\@outputbox
       \vskip \@tempdima
       \@textbottom
       }%
   \else
     \advance \@tempdima -\ht\@kludgeins
     \setbox \@outputbox \vbox to \@colht {%
       \vbox to \@tempdima {%
         \unvbox\@outputbox
         \@textbottom}%
       \vss}%
   \fi
   {\setbox \@tempboxa \box \@kludgeins}%
}
\let \@texttop \relax
\let \@textbottom \relax
\def\@activechar@info #1{%
      \@latex@info@no@line {Active #1 character found while
                            output routine is active
                            \MessageBreak
                            This may be a bug in a package file
                            you are using}%
}
\begingroup
\obeylines\obeyspaces%
\catcode`\'\active%
\gdef\@resetactivechars{%
\def^^M{\@activechar@info{EOL}\space}%
\def {\@activechar@info{space}\space}%
\let'\active@math@prime}%
\endgroup
\def\@outputpage{%
\begingroup
  \let \protect \noexpand
  \language\document@default@language
  \@resetactivechars
  \global\let\@@if@newlist\if@newlist
  \global\@newlistfalse
  \@parboxrestore
  \shipout \vbox{%
    \set@typeset@protect
    \aftergroup \endgroup
    \aftergroup \set@typeset@protect
  \if@specialpage
    \global\@specialpagefalse\@nameuse{ps@\@specialstyle}%
  \fi
  \if@twoside
    \ifodd\count\z@ \let\@thehead\@oddhead \let\@thefoot\@oddfoot
         \let\@themargin\oddsidemargin
    \else \let\@thehead\@evenhead
       \let\@thefoot\@evenfoot \let\@themargin\evensidemargin
    \fi
  \fi
  \reset@font
  \normalsize
  \normalsfcodes
  \let\label\@gobble
  \let\index\@gobble
  \let\glossary\@gobble
  \baselineskip\z@skip \lineskip\z@skip \lineskiplimit\z@
    \@begindvi
    \vskip \topmargin
    \moveright\@themargin \vbox {%
      \setbox\@tempboxa \vbox to\headheight{%
        \vfil
        \color@hbox
          \normalcolor
          \hb@xt@\textwidth{\@thehead}%
        \color@endbox
        }%
      \dp\@tempboxa \z@
      \box\@tempboxa
      \vskip \headsep
      \box\@outputbox
      \baselineskip \footskip
      \color@hbox
        \normalcolor
        \hb@xt@\textwidth{\@thefoot}%
      \color@endbox
      }%
    }%
  \global\let\if@newlist\@@if@newlist
  \global \@colht \textheight
  \stepcounter{page}%
  \let\firstmark\botmark
}
\def \@begindvi{%
  \unvbox \@begindvibox
  \global\let \@begindvi \@empty
}
\def \@combinefloats {%
    \ifx \@toplist\@empty \else \@cflt \fi
    \ifx \@botlist\@empty \else \@cflb \fi
}
\def \@cflt{%
    \let \@elt \@comflelt
    \setbox\@tempboxa \vbox{}%
    \@toplist
    \setbox\@outputbox \vbox{%
                             \boxmaxdepth \maxdepth
                             \unvbox\@tempboxa
                             \vskip -\floatsep
                             \topfigrule
                             \vskip \textfloatsep
                             \unvbox\@outputbox
                             }%
    \let\@elt\relax
    \xdef\@freelist{\@freelist\@toplist}%
    \global\let\@toplist\@empty
}
\def \@cflb {%
    \let\@elt\@comflelt
    \setbox\@tempboxa \vbox{}%
    \@botlist
    \setbox\@outputbox \vbox{%
                             \unvbox\@outputbox
                             \vskip \textfloatsep
                             \botfigrule
                             \unvbox\@tempboxa
                             \vskip -\floatsep
                             }%
    \let\@elt\relax
    \xdef\@freelist{\@freelist\@botlist}%
    \global \let \@botlist\@empty
}
\def\@comflelt#1{\setbox\@tempboxa
      \vbox{\unvbox\@tempboxa\box #1\vskip\floatsep}}
\def\@comdblflelt#1{\setbox\@tempboxa
      \vbox{\unvbox\@tempboxa\box #1\vskip\dblfloatsep}}
\def \@combinedblfloats{%
  \ifx \@dbltoplist \@empty
  \else
    \setbox\@tempboxa \vbox{}%
    \let \@elt \@comdblflelt
    \@dbltoplist
    \let \@elt \relax
    \xdef \@freelist {\@freelist\@dbltoplist}%
    \global\let \@dbltoplist \@empty
    \setbox\@outputbox \vbox to\textheight
      {%\boxmaxdepth\maxdepth   %% probably not needed, CAR
       \unvbox\@tempboxa\vskip-\dblfloatsep
       \ifnum \@dbltopnum>\m@ne
         \dblfigrule
       \fi
       \vskip \dbltextfloatsep
       \unvbox\@outputbox
       }%
  \fi
}
\def \@startcolumn {%
  \global \@colroom \@colht
  \@tryfcolumn \@deferlist
  \if@fcolmade
  \else
    \begingroup
      \let \reserved@b \@deferlist
      \global \let \@deferlist \@empty
      \let \@elt \@scolelt
      \reserved@b
    \endgroup
  \fi
}
\def \@startdblcolumn {%
  \@tryfcolumn \@deferlist
  \if@fcolmade
  \else
    \begingroup
      \let \reserved@b \@deferlist
      \global \let \@deferlist \@empty
      \let \@elt \@sdblcolelt
      \reserved@b
    \endgroup
  \fi
}%
\def \@tryfcolumn #1{%
  \global \@fcolmadefalse
  \ifx #1\@empty
  \else
    \xdef\@trylist{#1}%
    \global \let \@failedlist \@empty
    \begingroup
      \let \@elt \@xtryfc \@trylist
    \endgroup
    \if@fcolmade
      \@vtryfc #1%
    \fi
  \fi
}
\def\@scolelt#1{\def\@currbox{#1}\@addtonextcol}
\def\@sdblcolelt#1{\def\@currbox{#1}\@addtodblcol}
\def\@vtryfc #1{%
  \global\setbox\@outputbox\vbox{}%
  \let\@elt\@wtryfc
  \@flsucceed
  \global\setbox\@outputbox \vbox to\@colht{%
    \vskip \@fptop
    \vskip -\@fpsep
    \unvbox \@outputbox
    \vskip \@fpbot}%
  \let\@elt\relax
  \xdef #1{\@failedlist\@flfail}%
  \xdef\@freelist{\@freelist\@flsucceed}}
\def\@wtryfc #1{%
  \global\setbox\@outputbox\vbox{%
    \unvbox\@outputbox
    \vskip\@fpsep
    \box #1}}
\def\@xtryfc #1{%
  \@next\reserved@a\@trylist{}{}%
  \@currtype \count #1%
  \divide\@currtype\@xxxii
  \multiply\@currtype\@xxxii
  \@bitor \@currtype \@failedlist
  \@testfp #1%
  \@testwrongwidth #1%
  \ifdim \ht #1>\@colht
     \@testtrue
  \fi
  \if@test
    \@cons\@failedlist #1%
  \else
    \@ytryfc #1%
  \fi}%
\def\@ytryfc #1{%
  \begingroup
    \gdef\@flsucceed{\@elt #1}%
    \global\let\@flfail\@empty
    \@tempdima\ht #1%
    \let\@elt\@ztryfc
    \@trylist
    \ifdim \@tempdima >\@fpmin
      \global\@fcolmadetrue
    \else
      \@cons\@failedlist #1%
    \fi
  \endgroup
  \if@fcolmade
    \let\@elt\@gobble
  \fi}
\def\@ztryfc #1{%
  \@tempcnta\count #1%
  \divide\@tempcnta\@xxxii
  \multiply\@tempcnta\@xxxii
  \@bitor \@tempcnta {\@failedlist \@flfail}%
  \@testfp #1%
  \@testwrongwidth #1%
  \@tempdimb\@tempdima
  \advance\@tempdimb\ht #1%
  \advance\@tempdimb\@fpsep
  \ifdim \@tempdimb >\@colht
    \@testtrue
  \fi
  \if@test
    \@cons\@flfail #1%
  \else
    \@cons\@flsucceed #1%
    \@tempdima\@tempdimb
  \fi}%
\def \@addtobot {%
   \@getfpsbit 4\relax
   \ifodd \@tempcnta
     \@flsetnum \@botnum
     \ifnum \@botnum>\z@
       \@tempswafalse
       \@flcheckspace \@botroom \@botlist
       \if@tempswa
         \global \maxdepth \z@
         \@flupdates \@botnum \@botroom \@botlist
         \@inserttrue
       \fi
     \fi
   \fi
}
\def \@addtotoporbot {%
   \@getfpsbit \tw@
   \ifodd \@tempcnta
     \@flsetnum \@topnum
     \ifnum \@topnum>\z@
       \@tempswafalse
       \@flcheckspace \@toproom \@toplist
       \if@tempswa
         \@bitor\@currtype{\@midlist\@botlist}%
         \if@test
         \else
          \@flupdates \@topnum \@toproom \@toplist
          \@inserttrue
         \fi
       \fi
     \fi
   \fi
   \if@insert
   \else
     \@addtobot
   \fi
}
\def \@addtocurcol {%
   \@insertfalse
   \@setfloattypecounts
   \ifnum \@fpstype=8
   \else
     \ifnum \@fpstype=24
     \else
       \@flsettextmin
       \advance \@textmin \@textfloatsheight
       \@reqcolroom \@pageht
       \ifdim \@textmin>\@reqcolroom
         \@reqcolroom \@textmin
       \fi
       \advance \@reqcolroom \ht\@currbox
       \ifdim \@colroom>\@reqcolroom
         \@flsetnum \@colnum
         \ifnum \@colnum>\z@
           \@bitor\@currtype\@deferlist
          \@testwrongwidth\@currbox
           \if@test
           \else
             \@bitor\@currtype\@botlist
             \if@test
               \@addtobot
             \else
               \ifodd \count\@currbox
                 \advance \@reqcolroom \intextsep
                 \ifdim \@colroom>\@reqcolroom
                   \global \advance \@colnum \m@ne
                   \global \advance \@textfloatsheight \ht\@currbox
                   \global \advance \@textfloatsheight 2\intextsep
                   \@cons \@midlist \@currbox
                   \if@nobreak
                     \nobreak
                     \@nobreakfalse
                     \everypar{}%
                   \else
                     \addpenalty \interlinepenalty
                   \fi
                   \vskip \intextsep
                   \box\@currbox
                   \penalty\interlinepenalty
                   \vskip\intextsep
                   \ifnum\outputpenalty <-\@Mii \vskip -\parskip\fi
                   \outputpenalty \z@
                   \@inserttrue
                 \fi
               \fi
               \if@insert
               \else
                 \@addtotoporbot
               \fi
             \fi
           \fi
         \fi
       \fi
     \fi
   \fi
   \if@insert
   \else
     \@resethfps
     \@cons\@deferlist\@currbox
   \fi
}%
\def\@addtonextcol{%
  \begingroup
   \@insertfalse
   \@setfloattypecounts
   \ifnum \@fpstype=8
   \else
     \ifnum \@fpstype=24
     \else
       \@flsettextmin
       \@reqcolroom \ht\@currbox
       \advance \@reqcolroom \@textmin
       \ifdim \@colroom>\@reqcolroom
         \@flsetnum \@colnum
         \ifnum\@colnum>\z@
            \@bitor\@currtype\@deferlist
            \@testwrongwidth\@currbox
            \if@test
            \else
              \@addtotoporbot
            \fi
         \fi
       \fi
     \fi
   \fi
   \if@insert
   \else
     \@cons\@deferlist\@currbox
   \fi
  \endgroup
}%
\def\@addtodblcol{%
  \begingroup
   \@insertfalse
   \@setfloattypecounts
   \@getfpsbit \tw@
   \ifodd\@tempcnta
     \@flsetnum \@dbltopnum
     \ifnum \@dbltopnum>\z@
       \@tempswafalse
       \ifdim \@dbltoproom>\ht\@currbox
         \@tempswatrue
       \else
         \ifnum \@fpstype<\sixt@@n
           \advance \@dbltoproom \@textmin
           \ifdim \@dbltoproom>\ht\@currbox
             \@tempswatrue
           \fi
           \advance \@dbltoproom -\@textmin
         \fi
       \fi
       \if@tempswa
           \@bitor \@currtype \@deferlist
          \@testwrongwidth\@currbox
           \if@test
           \else
              \@tempdima -\ht\@currbox
              \advance\@tempdima
                -\ifx \@dbltoplist\@empty \dbltextfloatsep \else
                                          \dblfloatsep \fi
              \global \advance \@dbltoproom \@tempdima
              \global \advance \@colht \@tempdima
              \global \advance \@dbltopnum \m@ne
              \@cons \@dbltoplist \@currbox
              \@inserttrue
           \fi
       \fi
     \fi
   \fi
   \if@insert
   \else
     \@cons\@deferlist\@currbox
   \fi
  \endgroup
}%
\def\@addmarginpar{\@next\@marbox\@currlist{\@cons\@freelist\@marbox
    \@cons\@freelist\@currbox}\@latexbug\@tempcnta\@ne
    \if@twocolumn
        \if@firstcolumn \@tempcnta\m@ne \fi
    \else
      \if@mparswitch
         \ifodd\c@page \else\@tempcnta\m@ne \fi
      \fi
      \if@reversemargin \@tempcnta -\@tempcnta \fi
    \fi
    \ifnum\@tempcnta <\z@  \global\setbox\@marbox\box\@currbox \fi
    \@tempdima\@mparbottom
    \advance\@tempdima -\@pageht
    \advance\@tempdima\ht\@marbox
    \ifdim\@tempdima >\z@
      \@latex@warning@no@line {Marginpar on page \thepage\space moved}%
    \else
      \@tempdima\z@
    \fi
    \global\@mparbottom\@pageht
    \global\advance\@mparbottom\@tempdima
    \global\advance\@mparbottom\dp\@marbox
    \global\advance\@mparbottom\marginparpush
    \advance\@tempdima -\ht\@marbox
    \global\setbox \@marbox
                   \vbox {\vskip \@tempdima
                          \box \@marbox}%
    \global \ht\@marbox \z@
    \global \dp\@marbox \z@
    \kern -\@pagedp
    \nointerlineskip
    \hb@xt@\columnwidth
      {\ifnum \@tempcnta >\z@
          \hskip\columnwidth \hskip\marginparsep
       \else
          \hskip -\marginparsep \hskip -\marginparwidth
       \fi
       \box\@marbox \hss}%
    \nointerlineskip
    \hbox{\vrule \@height\z@ \@width\z@ \@depth\@pagedp}}
\newinsert \@kludgeins
\global\dimen\@kludgeins \maxdimen
\global\count\@kludgeins 1000
\gdef \enlargethispage {%
   \@ifstar
     {%
      \@enlargepage{\hbox{\kern\p@}}}%
     {%
      \@enlargepage\@empty}%
}
\gdef\@enlargepage#1#2{%
   \@tempskipa#2\relax
   \ifdim \@tempskipa>.5\maxdimen
     \@latex@error{Suggested\space extra\space height\space
                   (\the\@tempskipa)\space dangerously\space
                   large}\@eha
   \else
     \ifdim \vsize<.5\maxdimen
       \@bsphack
         \insert\@kludgeins{#1\vskip-\@tempskipa}%
       \@esphack
     \else
       \@latex@error{Page\space height\space already\space
                     too\space large}\@eha
     \fi
   \fi
}
\def\ShowFloat#1{\begingroup
    \let \fl@trace \fl@tracemessage
    \fl@trace{***Float #1 details:}%
    \ifcsname bx@#1\endcsname
      \expandafter\fl@ShowFloat\csname bx@#1\endcsname
    \else
      \fl@trace{Not a float!}%
    \fi
  \endgroup
}
\def\fl@ShowFloat#1{%
  \fl@traceval{\count#1}%  % this here should be interpreted on day
  \fl@traceval{\ht#1}%
  \fl@traceval{\dp#1}%
  \fl@traceval{\wd#1}%
  {\tracingonline1\showboxbreadth10\showboxdepth3\showbox#1}%
}
\def \fl@traceval #1{\fl@trace{\string #1 = \the #1}}
\def \fl@tracemessage #1{{\let\@elt\@empty\typeout{LaTeX2e: #1}}}
\def \suppressfloats {%
   \@ifnextchar [%
     \@flstop
    {\global \@colnum \z@}%
}
\def \@flstop [#1]{%
   \if t#1%
     \global \@topnum \z@
   \fi
   \if b#1%
     \global \@botnum \z@
   \fi
}
\newcount \@fpstype
\newdimen \@reqcolroom
\newdimen \@textfloatsheight
\def \@fpsadddefault {%
   \edef \@fps {\@fps\csname fps@\@captype \endcsname}%
   \@latex@warning {%
     No positions in optional float specifier.\MessageBreak
     Default added (so using `\@fps')}%
}
\def \@setfloattypecounts {%
  \@currtype \count\@currbox
  \@fpstype \count\@currbox
  \divide\@currtype\@xxxii \multiply\@currtype\@xxxii
  \advance \@fpstype -\@currtype
}
\def \@getfpsbit {%
   \@boxfpsbit \@currbox
}
\def \@boxfpsbit #1#2{%
   \@tempcnta \count#1%
   \divide \@tempcnta #2\relax
}
\def \@testfp #1{%
   \@boxfpsbit #18\relax % Really `#1 8' for human readers!
   \ifodd \@tempcnta
   \else
     \@testtrue
   \fi
}
\def \@setfpsbit #1{%
   \@tempcntb \@tempcnta
   \divide \@tempcntb #1\relax
   \ifodd \@tempcntb
   \else
     \advance \@tempcnta #1\relax
   \fi
}
\def \@resethfps {%
   \let\reserved@a\@empty
   \ifnum \@fpstype=\@ne
      \def \reserved@a {!}%
      \@fpstype 17
   \fi
   \ifnum \@fpstype=17
     \global \advance \count\@currbox \tw@
     \@latex@warning@no@line {%
       `\reserved@a h' float specifier changed to `\reserved@a ht'}%
   \fi
}
\def \@flsetnum #1{%
   \ifnum \@fpstype<\sixt@@n
     \ifnum #1=\z@
       #1\@ne
     \fi
   \fi
}
\def \@flsettextmin {%
   \ifnum \@fpstype<\sixt@@n
     \@textmin \z@
   \else
     \@textmin \textfraction\@colht
   \fi
}
\def \@flcheckspace #1#2{%
   \advance \@reqcolroom
     \ifx #2\@empty \textfloatsep \else \floatsep \fi
   \ifdim \@colroom>\@reqcolroom
     \ifdim #1>\ht\@currbox
       \@tempswatrue
     \else
       \ifnum \@fpstype<\sixt@@n
         \@tempswatrue
       \fi
     \fi
   \fi
}
\def \@flupdates #1#2#3{%
   \global \advance #1\m@ne
   \global \advance \@colnum \m@ne
   \@tempdima -\ht\@currbox
   \advance \@tempdima
     -\ifx #3\@empty \textfloatsep \else \floatsep \fi
   \global \advance #2\@tempdima
   \global \advance \@colroom \@tempdima
   \@cons #3\@currbox
}
\def\@makefcolumn #1{%
  \begingroup
    \@fpmin -\maxdimen
    \let \@testfp \@gobble
    \@tryfcolumn #1%
  \endgroup
}
\def\@outputdblcol{%
  \if@firstcolumn
    \global\@firstcolumnfalse
    \global\setbox\@leftcolumn\copy\@outputbox
    \splitmaxdepth\maxdimen
    \vbadness\maxdimen
     \setbox\@outputbox\vbox{\unvbox\@outputbox\unskip}%
     \setbox\@outputbox\vsplit\@outputbox to\maxdimen
    \toks@\expandafter{\topmark}%
    \xdef\@firstcoltopmark{\the\toks@}%
    \toks@\expandafter{\splitfirstmark}%
    \xdef\@firstcolfirstmark{\the\toks@}%
    \ifx\@firstcolfirstmark\@empty
      \global\let\@setmarks\relax
    \else
      \gdef\@setmarks{%
        \let\firstmark\@firstcolfirstmark
        \let\topmark\@firstcoltopmark}%
    \fi
  \else
    \global\@firstcolumntrue
    \setbox\@outputbox\vbox{%
     \hb@xt@\textwidth{%
        \hb@xt@\columnwidth{\box\@leftcolumn \hss}%
        \hfil
        {\normalcolor\vrule \@width\columnseprule}%
        \hfil
       \hb@xt@\columnwidth{\box\@outputbox \hss}}}%
  \@combinedblfloats
    \@setmarks
    \@outputpage
    \begingroup
      \@dblfloatplacement
      \@startdblcolumn
      \@whilesw\if@fcolmade \fi{\@outputpage
     \@startdblcolumn}%
    \endgroup
  \fi}%
\newcount\c@topnumber
\setcounter{topnumber}{2}
\newcommand\topfraction{.7}
\newcount\c@bottomnumber
\setcounter{bottomnumber}{1}
\newcommand\bottomfraction{.3}
\newcount\c@totalnumber
\setcounter{totalnumber}{3}
\newcommand\textfraction{.2}
\newcommand\floatpagefraction{.5}
\newcount\c@dbltopnumber
\setcounter{dbltopnumber}{2}
\newcommand\dbltopfraction{.7}
\newcommand\dblfloatpagefraction{.5}
\newskip\floatsep
\newskip\textfloatsep
\newskip\intextsep
\setlength\floatsep    {12\p@ \@plus 2\p@ \@minus 2\p@}
\setlength\textfloatsep{20\p@ \@plus 2\p@ \@minus 4\p@}
\setlength\intextsep   {12\p@ \@plus 2\p@ \@minus 2\p@}
\newskip\dblfloatsep
\newskip\dbltextfloatsep
\setlength\dblfloatsep    {12\p@ \@plus 2\p@ \@minus 2\p@}
\setlength\dbltextfloatsep{20\p@ \@plus 2\p@ \@minus 4\p@}
\newskip\@fptop
\newskip\@fpsep
\newskip\@fpbot
\setlength\@fptop{0\p@ \@plus 1fil}
\setlength\@fpsep{8\p@ \@plus 2fil}
\setlength\@fpbot{0\p@ \@plus 1fil}
\newskip\@dblfptop
\newskip\@dblfpsep
\newskip\@dblfpbot
\setlength\@dblfptop{0\p@ \@plus 1fil}
\setlength\@dblfpsep{8\p@ \@plus 2fil}
\setlength\@dblfpbot{0\p@ \@plus 1fil}
\let\topfigrule=\relax
\let\botfigrule=\relax
\let\dblfigrule=\relax
%%% From File: lttagging.dtx
\ExplSyntaxOn

\cs_new_eq:NN \tag_suspend:n \use_none:n
\cs_new_eq:NN \tag_resume:n  \use_none:n
\cs_new_protected:Npn \SuspendTagging #1 { \tag_suspend:n {#1} }
\cs_new_protected:Npn \ResumeTagging #1  { \tag_resume:n {#1} }
\prg_new_conditional:Npnn \tag_if_active: { p , T , TF, F }
     { \prg_return_false: }
\cs_new:Npn \tag_socket_use_expandable:n #1 { }
\cs_new_protected:Npn \tag_socket_use:n #1 { }
\cs_new_protected:Npn \tag_socket_use:nn #1#2 { }
\cs_new_protected:Npn \tag_socket_use:nnn #1#2#3 { #3 }
\cs_new_protected:Npn \UseTaggingSocket #1 {
  \int_case:nnF
      { \int_use:c { c__socket_tagsupport/#1_args_int } }
         {
           0 \prg_do_nothing:
           1 \use_none:n
           2 \use_ii:nn
         }
         \ERRORusetaggingsocket  % that should get a proper error message
}
\cs_new:Npn \UseExpandableTaggingSocket #1 {
  \int_case:nnF
      { \int_use:c { c__socket_tagsupport/#1_args_int } }
         {
           0 \prg_do_nothing:
           1 \use_none:n
           2 \use_ii:nn
         }
         \ERRORusetaggingsocket  % that should get a proper error message
}
\int_new:N \l__tag_block_flattened_level_int
\NewSocket{tagsupport/para/restore}{0}
\NewSocketPlug{tagsupport/para/restore}{default}
 {
   \tl_set:Nn    \l__tag_para_main_tag_tl {text-unit}
   \tl_set_eq:NN \l__tag_para_tag_tl\l__tag_para_tag_default_tl
   \bool_set_false:N\l__tag_para_flattened_bool
   \int_zero:N   \l__tag_block_flattened_level_int
   \bool_set_true:N \l__tag_para_bool
 }
\AssignSocketPlug{tagsupport/para/restore}{default}


\NewSocket{tagsupport/recordtarget}{0}
\NewSocketPlug{tagsupport/recordtarget}{kernel}
  {
    \tl_if_blank:VF \@currentHref
    {
      \prop_gput:Nee
        \g__tag_struct_dest_num_prop
        {\@currentHref}
        {\tag_get:n{struct_num}}
    }
  }
\AssignSocketPlug{tagsupport/recordtarget}{kernel}
\ExplSyntaxOff

\NewSocket{tagsupport/toc/contentsline/before}{1}
\NewSocket{tagsupport/toc/contentsline/after}{1}
\NewSocket{tagsupport/toc/starttoc/before}{1}
\NewSocket{tagsupport/toc/starttoc/after}{1}
\NewSocket{tagsupport/toc/leaders/before}{0}
\NewSocket{tagsupport/toc/leaders/after}{0}
\NewSocket{tagsupport/tbl/cell/begin}{0}
\NewSocket{tagsupport/tbl/cell/end}{0}
\NewSocket{tagsupport/tbl/row/begin}{0}
\NewSocket{tagsupport/tbl/row/end}{0}
\NewSocket{tagsupport/tbl/pcell/begin}{0}
\NewSocket{tagsupport/tbl/pcell/end}{0}
\NewSocket{tagsupport/tbl/init}{0}
\NewSocket{tagsupport/tbl/init/celldata}{0}
\NewSocket{tagsupport/tbl/finalize}{0}
\NewSocket{tagsupport/tbl/restore/celldata}{0}

\NewSocket{tagsupport/tbl/colspan}{1}

\NewSocket{tagsupport/tbl/hmode/begin}{0}
\NewSocket{tagsupport/tbl/hmode/end}{0}
\NewSocket{tagsupport/tbl/vmode/begin}{0}
\NewSocket{tagsupport/tbl/vmode/end}{0}
\NewSocket{tagsupport/tbl/longtable/init}{0}
\NewSocket{tagsupport/tbl/longtable/finalize}{0}
\NewSocket{tagsupport/tbl/longtable/head}{0}
\NewSocket{tagsupport/tbl/longtable/foot}{0}
\NewSocket{tagsupport/tbl/leaders/begin}{0}
\NewSocket{tagsupport/tbl/leaders/end}{0}
\NewSocket{tagsupport/float/hmode/begin}{0}
\NewSocket{tagsupport/float/hmode/end}{0}
\NewSocket{tagsupport/float/begin}{0}
\NewSocket{tagsupport/float/end}{0}
\NewSocket{tagsupport/caption/begin}{1}
\NewSocket{tagsupport/caption/end}{0}
\NewSocket{tagsupport/caption/label/begin}{0}
\NewSocket{tagsupport/caption/label/end}{0}
\ExplSyntaxOn
\int_new:N \g__tbl_col_int
\int_new:N \g__tbl_row_int
\tl_new:N  \g__tbl_span_tl
\tl_new:N  \g__tbl_table_cols_tl

\tl_gset:Nn \g__tbl_span_tl {1}
\tl_gset:Nn \g__tbl_table_cols_tl {0}  % indicates outer level
\tl_new:N \l__tbl_saved_col_tl
\tl_new:N \l__tbl_saved_row_tl
\tl_new:N \l__tbl_saved_span_tl
\tl_new:N \l__tbl_saved_table_cols_tl

\tl_set:Nn \l__tbl_saved_col_tl{0}
\tl_set:Nn \l__tbl_saved_row_tl{0}
\tl_set:Nn \l__tbl_saved_span_tl{1}
\tl_set:Nn \l__tbl_saved_table_cols_tl{0}  % indicates outer level
\int_new:N \g__tbl_missing_cells_int
\def\DebugTablesOn{
  \cs_set_eq:NN \__tbl_trace:n \typeout
}
\def\DebugTablesOff{
  \cs_set_eq:NN \__tbl_trace:n \use_none:n
}
\cs_new_eq:NN \__tbl_trace:n \use_none:n
\cs_new_protected:Npn \tbl_update_cell_data: {
        \int_gadd:Nn \g__tbl_col_int { \g__tbl_span_tl }
        \tl_gset:Nn  \g__tbl_span_tl {1}
}
\cs_new:Npn \tbl_count_table_cols:  {
  \seq_set_split:NnV\l__tbl_tmpa_seq {&}\@preamble
  \tl_gset:Ne \g__tbl_table_cols_tl { \seq_count:N \l__tbl_tmpa_seq }
  \__tbl_trace:n { ==>~ Table~ has~ \g__tbl_table_cols_tl \space columns }
}
\seq_new:N \l__tbl_tmpa_seq
\cs_new:Npn \tbl_count_missing_cells:n #1 {
  \tag_if_active:T {
    \int_compare:nNnT \g__tbl_col_int > 0
      {
        \int_gset:Nn \g__tbl_missing_cells_int
            {
              \g__tbl_table_cols_tl
            - \g__tbl_col_int
            - \g__tbl_span_tl
            + 1
            }
        \int_compare:nNnT \g__tbl_missing_cells_int < 0 \ERRORmissingcells % should not happen
        \__tbl_trace:n{==>~
          (#1)~
          This~ row~ needs~
          \int_use:N \g__tbl_missing_cells_int \space
          additional~ cell(s)
        }
      }
  }
}
\cs_new_protected:Npn \tbl_save_outer_table_cols: {
  \tl_set_eq:NN \l__tbl_saved_table_cols_tl  \g__tbl_table_cols_tl
}
\cs_new_protected:Npn \tbl_init_cell_data_for_table: {
  \tl_set:No \l__tbl_saved_col_tl {\int_use:N \g__tbl_col_int }
  \tl_set:No \l__tbl_saved_row_tl {\int_use:N \g__tbl_row_int }
  \tl_set_eq:NN \l__tbl_saved_span_tl  \g__tbl_span_tl
  \__tbl_trace:n { ==>~ saved~cell~data:~
                \l__tbl_saved_row_tl,
                \l__tbl_saved_col_tl,
                \l__tbl_saved_span_tl \space
                (
                \int_compare:nNnTF \l__tbl_saved_table_cols_tl = 0
                    { outer~ level }
                    { max:~ \l__tbl_saved_table_cols_tl }
                )
          }
  \UseTaggingSocket{tbl/init/celldata}
  \int_gzero:N \g__tbl_row_int
  \int_gzero:N \g__tbl_col_int
  \tl_gset:Nn  \g__tbl_span_tl {1}
}
\cs_new_protected:Npn \tbl_update_cell_data_for_next_row: {
      \int_gincr:N \g__tbl_row_int          % this row about to start
      \int_gzero:N \g__tbl_col_int          % we are before first col
}
\cs_new_protected:Npn \tbl_init_cell_data_for_row: {
        \int_gset:Nn \g__tbl_col_int {1}
        \tl_gset:Nn  \g__tbl_span_tl {1}
}
\cs_new:Npn \tbl_if_row_was_started:T {
      \int_compare:nNnT \g__tbl_col_int > 0
}
\cs_new:Npn \tbl_if_row_was_started:TF {
      \int_compare:nNnTF \g__tbl_col_int > 0
}
\cs_new_protected:Npn \tbl_gzero_row_count: {
  \int_gzero:N \g__tbl_row_int
}
\cs_new_protected:Npn \tbl_gincr_row_count: {
  \int_gincr:N \g__tbl_row_int
}
\cs_new_protected:Npn \tbl_gdecr_row_count: {
  \int_gdecr:N \g__tbl_row_int
}
\cs_new_protected:Npn \tbl_inbetween_rows: {
       \int_gzero:N  \g__tbl_col_int
}
\cs_new_protected:Npn \tbl_restore_outer_cell_data: {
  \int_gset:Nn \g__tbl_col_int { \l__tbl_saved_col_tl }
  \int_gset:Nn \g__tbl_row_int { \l__tbl_saved_row_tl }
  \tl_gset_eq:NN \g__tbl_span_tl \l__tbl_saved_span_tl
  \tl_gset_eq:NN \g__tbl_table_cols_tl   \l__tbl_saved_table_cols_tl
  \UseTaggingSocket{tbl/restore/celldata}
  \__tbl_trace:n { ==>~ restored~cell~data:~
                \int_use:N \g__tbl_row_int,
                \int_use:N \g__tbl_col_int,
                \l__tbl_saved_span_tl \space
                (
                \int_compare:nNnTF \g__tbl_table_cols_tl = 0
                    { outer~ level }
                    { max:~ \g__tbl_table_cols_tl }
                )
              }
}
\cs_new_protected:Npn \tbl_update_multicolumn_cell_data:n #1 {
   \int_compare:nNnTF \g__tbl_col_int = 0
       {
         \UseTaggingSocket{tbl/row/begin}
         \int_gset:Nn \g__tbl_col_int {1}
       }
       {
         \int_gadd:Nn \g__tbl_col_int { \g__tbl_span_tl }
       }
   \tl_gset:Nn \g__tbl_span_tl {#1}
}
\cs_new:Npn \tbl_crcr:n #1 {
    \int_compare:nNnT \g__tbl_col_int > 0
        {
          \tbl_count_missing_cells:n {#1}
        }
    \crcr
}
\ExplSyntaxOff
\def\hyper@nopatch@longtable{}
%%% From File: ltfinal.dtx
\tracingstats1
\newcount\@lowpenalty
\newcount\@medpenalty
\newcount\@highpenalty
\ifx\marks\@undefined\else
\def\newmarks{%
  \e@alloc\marks \e@alloc@chardef{\count256}\m@ne\e@alloc@top}
\fi
\NewMarkClass {2e-left}
\NewMarkClass {2e-right}
\NewMarkClass {2e-right-nonempty}

\ifx\XeTeXcharclass\@undefined
\else
\ifdim\the\XeTeXversion\XeTeXrevision\p@>0.99993\p@
  \chardef\e@alloc@intercharclass@top=4095
\else
  \chardef\e@alloc@intercharclass@top=255
\fi
\def\newXeTeXintercharclass{%
 \e@alloc\XeTeXcharclass
   \chardef\xe@alloc@intercharclass\m@ne\e@alloc@intercharclass@top}
\fi
\ifx\XeTeXcharclass\@undefined
\else
  \countdef\xe@alloc@intercharclass=257
  \xe@alloc@intercharclass=\z@
\fi
\ifx\directlua\@undefined
\else
  \expanded{%
    \everyjob{\the\everyjob
    \noexpand%\directlua
    \directlua{%
      local function trace_stack_levels (input_ptr)
        local tracingstacklevels = tex.count.tracingstacklevels
        if tex.tracingmacros > 0 or input_ptr < tracingstacklevels then
          if tracingstacklevels > 0 then
            if input_ptr < tracingstacklevels then
              return "\string\n\string~" .. string.rep(".",input_ptr)
            else
              return "\string~\string~"
            end
          else
            return "\string\n"
          end
        else
          return ""
        end
      end
      luatexbase.add_to_callback('input_level_string',
        trace_stack_levels,'tracingstacklevels')
    }%
  }}%
\fi
\unitlength = 1pt
\fboxsep = 3pt
\fboxrule = .4pt
\@maxdepth       = \maxdepth
\vsize = 1000pt
\@colroom = \vsize
\@colht = \vsize
\textheight=.5\maxdimen
\textwidth=\textheight
\ps@empty
\ifnum 0%
  \ifx\Umathcode\@undefined\else 1\fi
  \ifx\XeTeXmathcode\@undefined\else 1\fi
  >\z@
  \message{ Unicode character data,}
  \input{load-unicode-data}
  \lccode`\- =`\- % default hyphen char
\else
\def\reserved@a#1#2{%
   \@tempcnta#1\relax
   \@tempcntb#2\relax
   \reserved@b
}
\def\reserved@b{%
   \ifnum\@tempcnta>\@tempcntb\else
      \reserved@c\@tempcnta
      \advance\@tempcnta\@ne
      \expandafter\reserved@b
   \fi
}
\def\reserved@c#1{%
   \count@=#1\advance\count@ by -"20
   \uccode#1=\count@
   \lccode#1=#1
}
\reserved@a{`\a}{`\z}
\reserved@a{"A0}{"BC}
\reserved@a{"E0}{"FF}
\def\reserved@c#1{%
   \count@=#1\advance\count@ by "20
   \uccode#1=#1
   \lccode#1=\count@
   \sfcode#1=999
}
\reserved@a{`\A}{`\Z}
\reserved@a{"80}{"9C}
\reserved@a{"C0}{"DF}
\uccode`\^^Y=`\I     % dotless i
\lccode`\^^Y=`\^^Y   % dotless i
\uccode`\^^Z=`\J     % dotless j, ae in OT1
\lccode`\^^Z=`\^^Z   % dotless j, ae in OT1
\lccode`\^^9d=`\i    % dotted I
\uccode`\^^9d=`\^^9d % dotted I
\lccode`\^^9e=`\^^9e % d-bar
\uccode`\^^9e=`\^^d0 % d-bar
\lccode`\^^[=`\^^[   % oe in OT1
\lccode`\- =`\-   % default hyphen char
\lccode 127=127   % alternate hyphen char
\lccode 23 =23    % textcompwordmark in T1
\fi
\@expl@finalise@setup@@
\def\@expl@finalise@setup@@{}
\ifx\XeTeXuseglyphmetrics\@undefined
\else
  \XeTeXuseglyphmetrics=1 %
  \XeTeXdashbreakstate=1 %
\fi
\InputIfFileExists{hyphen.cfg}
           {\typeout{===========================================^^J%
                      Local configuration file hyphen.cfg used^^J%
                     ===========================================}%
             \def\@addtofilelist##1{\xdef\@filelist{\@filelist,##1}}%
           }
           {\input{hyphen.ltx}}
\let\@addtofilelist\@gobble
\ifx\l@nohyphenation \@undefined
  \newlanguage\l@nohyphenation
\fi
\let\document@default@language\m@ne
\ifdim \font@submax >\z@
   \@font@warning{Size substitutions with differences\MessageBreak
                 up to \font@submax\space have occurred.\MessageBreak
                \MessageBreak
                Please check the transcript file
                carefully\MessageBreak
                and redo the format generation if necessary!
                \@gobbletwo}%
   \errhelp{Only stopped, to give you time to
            read the above message.}
   \errmessage{}
\def\font@submax{0pt}
\fi
\ifx \pdfgentounicode \@undefined \else
  \ifnum 0=0%
    \ifdefined\pdftexversion
      \ifnum \pdftexversion=140 \ifnum\pdftexrevision<22 1\fi\fi
    \fi
    \relax
    \input glyphtounicode
  \else
    \begingroup
      \everyeof{\noexpand}\endlinechar-1
      \edef\x{\endgroup
        \everyjob{\the\everyjob\@@input glyphtounicode }%
    }\x
  \fi
  \pdfgentounicode=1
\fi
\ifnum0%
  \ifx\Umathcode\@undefined\else 1\fi
  \ifx\mubyte\@undefined\else 1\fi
  \ifx\charsubdef\@undefined\else 1\fi
  =\z@
\def\saved@space@catcode{10}
\let\@inpenc@test\relax
\def\IeC{%
  \ifx\protect\@typeset@protect
    \expandafter\@firstofone
  \else
    \noexpand\IeC
  \fi
}
\@tempcnta=1
\loop
  \catcode\@tempcnta=13  %
  \advance\@tempcnta\@ne %
\ifnum\@tempcnta<32      %
\repeat                  %
\catcode0=15  % null
\catcode9=10  % tab
\catcode10=12 % ctrl J
\catcode12=13 % ctrl L
\catcode13=5  % newline
\@tempcnta=128
\loop
  \catcode\@tempcnta=13
  \advance\@tempcnta\@ne
\ifnum\@tempcnta<256
\repeat
\def\UseRawInputEncoding{%
\let\inputencodingname\@undefined                     % revert
\let\DeclareFontEncoding@\DeclareFontEncoding@saved   % revert
\let\DeclareUnicodeCharacter\@undefined               % revert
\@tempcnta=1
\loop
  \catcode\@tempcnta=15  %
  \advance\@tempcnta\@ne %
\ifnum\@tempcnta<32      %
\repeat                  %
\catcode0=15  % null
\catcode9=10  % tab
\catcode10=12 % ctrl J
\catcode12=13 % ctrl L
\catcode13=5  % newline
\@tempcnta=128
\loop
  \catcode\@tempcnta=12
  \advance\@tempcnta\@ne
\ifnum\@tempcnta<256
\repeat
}
\let\DeclareFontEncoding@saved\DeclareFontEncoding@
\edef\inputencodingname{utf8}%
\input{utf8.def}
\let\UTFviii@undefined@err@@\UTFviii@undefined@err
\let\UTFviii@invalid@err@@\UTFviii@invalid@err
\let\UTFviii@two@octets@@\UTFviii@two@octets
\let\UTFviii@three@octets@@\UTFviii@three@octets
\let\UTFviii@four@octets@@\UTFviii@four@octets
\def\UTFviii@undefined@err#1{\@gobble#1}%
\let\UTFviii@invalid@err\string
\let\UTFviii@two@octets\string
\let\UTFviii@three@octets\string
\let\UTFviii@four@octets\string
\everyjob\expandafter{\the\everyjob
\let\UTFviii@undefined@err\UTFviii@undefined@err@@
\let\UTFviii@invalid@err\UTFviii@invalid@err@@
\let\UTFviii@two@octets\UTFviii@two@octets@@
\let\UTFviii@three@octets\UTFviii@three@octets@@
\let\UTFviii@four@octets\UTFviii@four@octets@@
}
\let\@inpenc@test\@undefined
\let\saved@space@catcode\@undefined
\else
\@tempcnta=0
\loop
  \catcode\@tempcnta=15  %
  \advance\@tempcnta\@ne %
\ifnum\@tempcnta<32      %
\repeat                  %
\catcode0=15  % null
\catcode9=10  % tab
\catcode10=12 % ctrl J
\catcode12=13 % ctrl L
\catcode13=5  % newline
\let\UseRawInputEncoding\relax
\fi
\def\reserved@a#1#2{%
   \@tempcnta#1\relax
   \@tempcntb#2\relax
   \reserved@b
}
\def\reserved@b{%
   \ifnum\@tempcnta>\@tempcntb\else
      \reserved@c\@tempcnta
      \advance\@tempcnta\@ne
      \expandafter\reserved@b
   \fi
}
\catcode`\ =10
\catcode`\#=6
\catcode`\$=3
\catcode`\%=14
\catcode`\&=4
\catcode`\\=0
\catcode`\^=7
\catcode`\_=8
\catcode`\{=1
\catcode`\}=2
\catcode`\~=13
\catcode`\@=11
\catcode`\^^I=10
\catcode`\^^J=12
\catcode`\^^L=13
\catcode`\^^M=5
\def\reserved@c#1{\catcode#1=12\relax}
\reserved@c{`\!}
\reserved@c{`\"}
\reserved@a{`\'}{`\?}
\reserved@c{`\[}
\reserved@c{`\]}
\reserved@c{`\`}
\reserved@c{`\|}
\def\reserved@c#1{\catcode#1=11\relax}
\reserved@a{`\A}{`\Z}
\reserved@a{`\a}{`\z}
\ifnum 0%
  \ifx\Umathcode\@undefined\else 1\fi
  \ifx\XeTeXmathcode\@undefined\else 1\fi
  >\z@
\else
\def\reserved@c#1{%
   \count@=#1\advance\count@ by -"20
   \uccode#1=\count@
   \lccode#1=#1
}
\reserved@a{`\a}{`\z}
\reserved@a{"A0}{"BC}
\reserved@a{"E0}{"FF}
\def\reserved@c#1{%
   \count@=#1\advance\count@ by "20
   \uccode#1=#1
   \lccode#1=\count@
   \sfcode#1=999
}
\reserved@a{`\A}{`\Z}
\reserved@a{"80}{"9C}
\reserved@a{"C0}{"DF}
\uccode`\^^Y=`\I     % dotless i
\lccode`\^^Y=`\^^Y   % dotless i
\uccode`\^^Z=`\J     % dotless j, ae in OT1
\lccode`\^^Z=`\^^Z   % dotless j, ae in OT1
\lccode`\^^9d=`\i    % dotted I
\uccode`\^^9d=`\^^9d % dotted I
\lccode`\^^9e=`\^^9e % d-bar
\uccode`\^^9e=`\^^d0 % d-bar
\lccode`\^^[=`\^^[   % oe in OT1
\fi % End of reset block for 8-bit engines
\ExplSyntaxOn
\newcommand*\BCPdata[1]{
  \str_case:nn {#1}
    {
      { language } { en }
      { region }   { US }
      { script }   { Latn }
      { tag }      { en-US }
    }
}
\ExplSyntaxOff
\ExplSyntaxOn
\keys_define:nn { __kernel }
  {
    lang   .str_set:N = \reserved@a ,
    locale .str_set:N = \reserved@a
  }
\cs_new_protected:Npn \@@text@case@aux #1#2#3
  {
    \cs_set_nopar:Npn \reserved@a { }
    \tl_if_blank:nTF {#2}
      {
        \str_set:Nx \reserved@a
          { \BCPdata { casing } }
        \str_if_empty:NT \reserved@a
          {
            \str_set:Nx \reserved@a
              { \BCPdata { language } }
          }
      }
      { \keys_set:nn { __kernel } {#2} }
    \use:c { text_ #1 case:Vn } \reserved@a {#3}
  }
\exp_args_generate:n { cnx }
\cs_set_protected:Npn \reserved@a #1
  {
    \cs_generate_variant:cn { text_ \str_lowercase:n {#1} case:nn } { V }
    \ExpandArgs { cnx } \NewExpandableDocumentCommand
       { Make#1case }
       { O{} +m }
       { \exp_not:c { Make#1case \c_space_tl \c_space_tl \c_space_tl } [####1] {####2} }
  }
\reserved@a { Upper }
\reserved@a { Lower }
\reserved@a { Title }
\cs_new_protected:cpn { MakeLowercase \c_space_tl \c_space_tl \c_space_tl } [#1] #2
  {{
    \let \OE \oe
    \@@text@case@aux { lower } {#1} {#2}
  }}
\cs_new_protected:cpn { MakeUppercase \c_space_tl \c_space_tl \c_space_tl } [#1] #2
  {{
    \let \oe \OE
    \@@text@case@aux { upper } {#1} {#2}
  }}
\cs_new_protected:cpn { MakeTitlecase \c_space_tl \c_space_tl \c_space_tl } [#1] #2
  {{
    \let \oe \OE
    \@@text@case@aux { title } {#1} {#2}
  }}
\cs_new_protected_nopar:Npn\AddToNoCaseChangeList
         {\tl_put_right:Nn \l_text_case_exclude_arg_tl}
\AddToNoCaseChangeList{ \NoCaseChange }
\cs_new_protected:Npn \NoCaseChange #1 {#1}
\cs_new_eq:NN \CaseSwitch \text_case_switch:nnnn
\cs_new_eq:NN \DeclareCaseChangeEquivalent
  \text_declare_case_equivalent:Nn
\NewDocumentCommand \DeclareLowercaseMapping { o m m }
  {
    \IfNoValueTF {#1}
      { \text_declare_lowercase_mapping:nn }
      { \text_declare_lowercase_mapping:nnn {#1} }
        {#2} {#3}
  }
\NewDocumentCommand \DeclareTitlecaseMapping { o m m }
  {
    \IfNoValueTF {#1}
      { \text_declare_titlecase_mapping:nn }
      { \text_declare_titlecase_mapping:nnn {#1} }
        {#2} {#3}
  }
\NewDocumentCommand \DeclareUppercaseMapping { o m m }
  {
    \IfNoValueTF {#1}
      { \text_declare_uppercase_mapping:nn }
      { \text_declare_uppercase_mapping:nnn {#1} }
        {#2} {#3}
  }
\ExplSyntaxOff
\def\@uclclist{\oe\OE\o\O\ae\AE
      \dh\DH\dj\DJ\l\L\ng\NG\ss\SS\ij\IJ\th\TH}
\let\reserved@a\@filelist
\let\reserved@b=\@undefined
\let\reserved@c=\@undefined
\let\reserved@d=\@undefined
\let\reserved@e=\@undefined
\let\reserved@f=\@undefined
\toks0{}
\toks2{}
\toks4{}
\toks6{}
\toks8{}
\errhelp{}
\def\@providesfile#1[#2]{%
    \wlog{File: #1 #2}%
    \expandafter\xdef\csname ver@#1\endcsname{#2}%
  \endgroup}
\let\@filelist\@gobble
\def\@addtofilelist#1{\xdef\@filelist{\@filelist,#1}}%
\let \IfPDFManagementActiveTF \@secondoftwo
\@input{latex2e-first-aid-for-external-files.ltx}
\makeatother
\errorstopmode
\dump
\endinput
%%
%% End of file `latex.ltx'.
