% \iffalse meta-comment
% 
% This is file `caption3.dtx'.
% 
% Copyright (C) 1994-2020 Axel Sommerfeldt (axel.sommerfeldt@f-m.fm)
% 
% --------------------------------------------------------------------------
% 
% This work may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either version 1.3
% of this license or (at your option) any later version.
% The latest version of this license is in
%   http://www.latex-project.org/lppl.txt
% and version 1.3 or later is part of all distributions of LaTeX
% version 2003/12/01 or later.
% 
% This work has the LPPL maintenance status "maintained".
% 
% This Current Maintainer of this work is Axel Sommerfeldt.
% 
% This work consists of the files
%   caption.ins, caption.dtx, caption2.dtx, caption3.dtx,
%   bicaption.dtx, ltcaption.dtx, subcaption.dtx, totalcount.dtx,
% the derived files
%   caption.sty, caption2.sty, caption3.sty,
%   bicaption.sty, ltcaption.sty, subcaption.sty, totalcount.sty,
% and the user manuals
%   caption-deu.tex, caption-eng.tex, caption-rus.tex.
% 
% \fi
% \CheckSum{3606}
%
% \iffalse
%<*driver>
\NeedsTeXFormat{LaTeX2e}[1994/12/01]
\ProvidesFile{caption3.drv}[2020/05/30 v1.12 Implementation of the caption kernel]
\hbadness=9999 \newcount\hbadness \hfuzz=100pt % Make TeX shut up.
%\errorcontextlines=3
%
\documentclass{ltxdoc}
\setlength\parindent{0pt}
\setlength\parskip{\smallskipamount}
%
\makeatletter % make room for subsections like 2.16.14 in the TOC
%\newcommand*\l@subsection{\@dottedtocline{2}{1.5em}{2.3em}}
\renewcommand*\l@subsection{\@dottedtocline{2}{1.5em}{2.7em}}
\makeatother
%
\usepackage{ifpdf}
\ifpdf
  \usepackage{mathptmx,courier}
  \usepackage[scaled=0.90]{helvet}
  \addtolength\marginparwidth{15pt}
\fi
%
\usepackage{hypdoc}
\ifpdf\usepackage{hypdestopt}\fi
\hypersetup{pdfkeywords={LaTeX, package, caption},pdfstartpage={},pdfstartview={}}
%
\usepackage{caption3}[2020/05/30]
%
\DeclareRobustCommand*\AmS{\texorpdfstring
  {{\protect\usefont{OMS}{cmsy}{m}{n}A\kern-.1667em\lower.5ex\hbox{M}\kern-.125emS}}%
  {AMS}}
\DeclareRobustCommand*\KOMAScript{\texorpdfstring
  {\textsf{K\kern.05em O\kern.05em M\kern.05em A\kern.1em-\kern.1em Script}}%
  {KOMA-Script}}
\DeclareRobustCommand*\NTG{NTG}
\DeclareRobustCommand*\SmF{SMF}
%
\begin{document}
  \DocInput{caption3.dtx}
\end{document}
%</driver>
% \fi
%
% \newcommand*\purerm[1]{{\upshape\mdseries\rmfamily #1}}
% \newcommand*\puresf[1]{{\upshape\mdseries\sffamily #1}}
% \newcommand*\purett[1]{{\upshape\mdseries\ttfamily #1}}
% \let\class\puresf \let\package\puresf
% \let\env\purett \let\opt\purett
%
% \def\thispackage{the \package{caption} kernel}
% \def\Thispackage{The \package{caption} kernel}
%
% \newcommand*\csmarg[1]{\texttt{\char`\{#1\char`\}}}
% \newcommand*\csoarg[1]{\texttt{\char`\[#1\char`\]}}
% \newcommand*\version[2][]{\textit{v#2}}
%
% \GetFileInfo{caption3.sty}
%
% \title{The Implementation of
%        \texorpdfstring{\thispackage\thanks{%^^A
%          This package has version number \fileversion, last revised \filedate.}}%^^A
%        {the caption kernel}}
% \author{Axel Sommerfeldt\\
%         \url{https://gitlab.com/axelsommerfeldt/caption}}
% \date{\filedate}
% \maketitle
%
% \begin{abstract}
% \Thispackage\ consists of two parts -- the kernel
% (|caption3.sty|) and the main package (|caption.sty|).
%
% The kernel provides all the user commands and internal macros which are
% necessary for typesetting captions and setting parameters regarding these.
% While the standard \LaTeX\ document classes provide an internal command
% called |\@makecaption| and no options to control its behavior (except the
% vertical skips above and below the caption itself), we provide similar
% commands called |\caption@make| and |\caption@@make|, but with a lot of
% options which can be selected with |\captionsetup|.
% Loading the kernel part do not change the output of a \LaTeX\ document
% -- it just provides functionality which can be used by \LaTeXe\ packages
% which typesets captions, for example the \package{caption} and
% \package{subfig} packages.
% \end{abstract}
% 
% \StopEventually{}
% \clearpage
% \tableofcontents
% 
% \iffalse
% --------------------------------------------------------------------------- %
% \fi
%
% \DoNotIndex{\\,\_,\ ,\@@par}
% \DoNotIndex{\@bsphack}
% \DoNotIndex{\@car,\@cdr,\@classoptionslist,\@cons,\@currext,\@currname}
% \DoNotIndex{\@ehc,\@ehd,\@empty,\@esphack,\@expandtwoargs}
% \DoNotIndex{\@for,\@firstofone,\@firstoftwo}
% \DoNotIndex{\@gobble,\@gobblefour,\@gobbletwo,\@hangfrom}
% \DoNotIndex{\if@minipage\@ifnextchar,\@ifpackagelater,\@ifpackageloaded}
% \DoNotIndex{\@ifstar,\@ifundefined,\@latex@error,\@minipagefalse,\@minipagetrue}
% \DoNotIndex{\@namedef,\@nameuse}
% \DoNotIndex{\@onlypreamble,\@parboxrestore,\@plus,\@ptionlist}
% \DoNotIndex{\@removeelement,\@restorepar,\@secondoftwo,\@setminipage,\@setpar}
% \DoNotIndex{\@tempa,\@tempboxa,\@tempdima,\@tempdimb,\@tempdimc,\@tempb,\@tempc}
% \DoNotIndex{\@testopt}
% \DoNotIndex{\@undefined,\@unprocessedoptions,\@unusedoptionlist}
% \DoNotIndex{\p@,\z@}
% \DoNotIndex{\active,\addtocounter,\addtolength,\advance,\aftergroup}
% \DoNotIndex{\baselineskip,\begin,\begingroup,\bfseries,\box}
% \DoNotIndex{\catcode,\centering,\changes,\csname,\def,\divide,\do,\downarrow}
% \DoNotIndex{\edef,\else,\empty,\end,\endcsname,\endgraf,\endgroup,\expandafter}
% \DoNotIndex{\fi,\footnotesize,\global}
% \DoNotIndex{\hangindent,\hbox,\hfil,\hsize,\hskip,\hspace,\hss}
% \DoNotIndex{\ifcase,\ifdim,\ifnum,\ifodd,\ifvoid,\ifvmode}
% \DoNotIndex{\ifx,\ignorespaces,\itshape}
% \DoNotIndex{\Large,\large,\leavevmode,\leftmargini,\leftskip,\let,\linewidth}
% \DoNotIndex{\llap,\long,\m@ne,\margin,\mdseries,\message}
% \DoNotIndex{\newcommand,\newdimen,\newlength,\newline,\newif,\newsavebox}
% \DoNotIndex{\next,\nobreak,\nobreakspace,\noexpand,\noindent,\numberline}
% \DoNotIndex{\normalcolor,\normalfont,\normalsize,\or,\par,\parbox,\parfillskip}
% \DoNotIndex{\parindent,\parskip,\prevdepth,\protect,\protected@edef,\protected@write}
% \DoNotIndex{\providecommand,\quad}
% \DoNotIndex{\raggedleft,\raggedright,\relax,\renewcommand,\RequirePackage}
% \DoNotIndex{\rightskip,\rmfamily}
% \DoNotIndex{\sbox,\scriptsize,\scshape,\setbox,\setlength,\sffamily,\slshape}
% \DoNotIndex{\small,\string,\space,\strut}
% \DoNotIndex{\textheight,\the,\toks@,\typeout,\ttfamily}
% \DoNotIndex{\unvbox,\uparrow,\upshape,\usebox,\usepackage}
% \DoNotIndex{\value,\vbox,\vsize,\vskip,\wd,\width,\z@skip}
% \DoNotIndex{\AtBeginDocument,\AtEndOfPackage,\CurrentOption,\DeclareOption}
% \DoNotIndex{\ExecuteOptions,\GenericWarning,\IfFileExists,\InputIfFileExists}
% \DoNotIndex{\NeedsTeXFormat,\MessageBreak}
% \DoNotIndex{\PackageError,\PackageInfo,\PackageWarning,\PackageWarningNoLine}
% \DoNotIndex{\PassOptionsToPackage,\ProcessOptions,\ProvidesPackage}
%
% \iffalse
% --------------------------------------------------------------------------- %
% \fi
%
% \setlength{\parskip}{0pt plus 1pt}
% \newcommand*\Note[2][Note]{\par{\small\emph{#1:} #2}\par}
%
% \changes{v1.0}{2003/12/20}{Rewritten; many new commands and features}
% \changes{v1.0c}{2004/11/28}{Split into two packages:
%                             \package{caption} \& \package{caption3}}
%
% \iffalse
% --------------------------------------------------------------------------- %
% \fi
%
% \clearpage
%
% \iffalse
%<*package>
% \fi
%
% \section{Identification}
%
%    \begin{macrocode}
\NeedsTeXFormat{LaTeX2e}[1994/12/01]
\ProvidesPackage{caption3}[2020/07/20 v1.12b caption3 kernel (AR)]
%    \end{macrocode}
%
% \section{Workaround for bug in package \package{arabtex}}
% \package{arabtex} re-defines \cs{@gobble} as not-long so the packages of the
% \package{caption} package bundle are doomed to fail.
% Since this fatal bug won't be fixed in \package{arabtex} but we are dependent on a
% proper definition of \cs{@gobble}, \cs{@firstofone}, \cs{@firstoftwo}, \cs{@secondoftwo},
% and so on we fix this here. (Sigh!)
%    \begin{macrocode}
\providecommand\caption@FixArabTeX{%
  \def\caption@tempa##1{}%
  \ifx\caption@tempa\@gobble
    \PackageInfo{caption3}{Fixing ArabTeX}%
    \long\def\@gobble##1{}%
  \fi}
%    \end{macrocode}
% Do the fix now and at |\begin{document}|, in case \package{arabtex} will be loaded after \package{caption}.
%    \begin{macrocode}
\caption@FixArabTeX
\AtBeginDocument{%
  \caption@FixArabTeX
  \let\caption@FixArabTeX\@undefined}
%    \end{macrocode}
%
% \section{Generic helpers}
%
% \begin{macro}{\@nameundef}
%  This is the opposite to |\@namedef| which is offered by the \LaTeX\ kernel.
%  We use it to remove the definition of some commands and keyval options after
%  |\begin{document}| (to save \TeX\ memory) and to remove caption options defined
%  with |\captionsetup|\oarg{type}.
%    \begin{macrocode}
\providecommand*\@nameundef[1]{%
  \expandafter\let\csname #1\endcsname\@undefined}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\l@addto@macro}
% \changes{v1.5}{2013/04/26}{Revised}
%  The \LaTeXe\ kernel offers the internal helper macro |\g@addto@macro| which
%  globally adds tokens to existing macros, like in |\AtBeginDocument|.
%  This is the same but it works local, not global.
%    \begin{macrocode}
\begingroup\expandafter\expandafter\expandafter\endgroup
\expandafter\ifx\csname currentgrouplevel\endcsname\relax
  \PackageInfo{caption3}{TeX engine: TeX}
  \let\caption@ifeTeX\@secondoftwo
  \providecommand\l@addto@macro[2]{%
    \begingroup
      \toks@\expandafter{#1#2}%
      \xdef\caption@addto@temp{\the\toks@}%
    \endgroup
    \let#1\caption@addto@temp}
\else
  \PackageInfo{caption3}{TeX engine: e-TeX}
  \let\caption@ifeTeX\@firstoftwo
  \providecommand\l@addto@macro[2]{%
    \edef#1{\unexpanded\expandafter{#1#2}}}
\fi
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\bothIfFirst}
% \begin{macro}{\bothIfSecond}
%  |\bothIfFirst| tests if the first argument is not empty, |\bothIfSecond|
%  tests if the second argument is not empty. If yes both arguments get
%  typeset, otherwise none of them.
%    \begin{macrocode}
\def\bothIfFirst#1#2{%
  \protected@edef\caption@tempa{#1}%
  \ifx\caption@tempa\@empty \else
    #1#2%
  \fi}
%    \end{macrocode}
%    \begin{macrocode}
\def\bothIfSecond#1#2{%
  \protected@edef\caption@tempa{#2}%
  \ifx\caption@tempa\@empty \else
    #1#2%
  \fi}
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\caption@ifundefined}
% \changes{v1.3a}{2011/08/12}{This macro added}
% \changes{v1.3b}{2011/08/18}{Made expandable}
% Similar to \cs{@ifundefined} offered by the \LaTeX kernel,
% but takes a macro as argument instead of a macro name.
%    \begin{macrocode}
\newcommand*\caption@ifundefined[1]{%
  \ifx#1\@undefined
    \expandafter\@firstoftwo
  \else\ifx#1\relax
    \expandafter\expandafter\expandafter\@firstoftwo
  \else
    \expandafter\expandafter\expandafter\@secondoftwo
  \fi\fi}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@ifdefined}
% \changes{v1.8e}{2018/05/11}{This macro added}
% Similar to \cs{@ifundefined} offered by the \LaTeX kernel,
% but takes a macro as argument instead of a macro name.
%    \begin{macrocode}
\newcommand*\caption@ifdefined[1]{%
  \ifx#1\@undefined
    \expandafter\@secondoftwo
  \else\ifx#1\relax
    \expandafter\expandafter\expandafter\@secondoftwo
  \else
    \expandafter\expandafter\expandafter\@firstoftwo
  \fi\fi}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@ifinlist}
% \changes{v1.1}{2007/07/29}{Rewritten}
%  This helper macro checks if the first argument is in the comma separated
%  list which is offered as second argument. So for example
%  \begin{quote}
%    |\caption@ifinlist{frank}{axel,frank,olga,steven}{yes}{no}|
%  \end{quote}
%  would expand to |yes|.
%    \begin{macrocode}
\newcommand*\caption@ifinlist{%
  \@expandtwoargs\caption@@ifinlist}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@@ifinlist[2]{%
  \begingroup
  \def\@tempa##1,#1,##2\@nil{%
    \endgroup
    \ifx\relax##2\relax
      \expandafter\@secondoftwo
    \else
      \expandafter\@firstoftwo
    \fi}%
  \@tempa,#2,#1,\@nil}%
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@ifin@list}
% \changes{v1.1}{2007/08/12}{This macro added}
% |\caption@ifin@list|\marg{cmd}\marg{list entry}\marg{yes}\marg{no}
%    \begin{macrocode}
\newcommand*\caption@ifin@list[2]{%
  \caption@ifempty@list#1%
    {\@secondoftwo}%
    {\@expandtwoargs\caption@@ifinlist{#2}{#1}}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@g@addto@list}
% \changes{v1.1}{2007/07/29}{This macro added}
% |\caption@g@addto@list|\marg{cmd}\marg{list entry}
%    \begin{macrocode}
\newcommand*\caption@g@addto@list[2]{%
  \caption@ifempty@list#1{\gdef#1{#2}}{\g@addto@macro#1{,#2}}}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\caption@l@addto@list}
% \changes{v1.1}{2007/07/29}{This macro added}
% |\caption@l@addto@list|\marg{cmd}\marg{list entry}
%    \begin{macrocode}
\newcommand*\caption@l@addto@list[2]{%
  \caption@ifempty@list#1{\def#1{#2}}{\l@addto@macro#1{,#2}}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@g@removefrom@list}
% \changes{v1.1}{2007/07/29}{This macro added}
% |\caption@g@removefrom@list|\marg{cmd}\marg{list entry}
%    \begin{macrocode}
\newcommand*\caption@g@removefrom@list[2]{%
  \caption@l@removefrom@list#1{#2}%
  \global\let#1#1}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\caption@l@removefrom@list}
% \changes{v1.1}{2007/07/29}{This macro added}
% |\caption@l@removefrom@list|\marg{cmd}\marg{list entry}\par
% \Note[Caveat]{\meta{cmd} will be expanded during this process since
%               \cs{@removeelement} is using \cs{edef} to build the new list!}
%    \begin{macrocode}
\newcommand*\caption@l@removefrom@list[2]{%
  \caption@ifempty@list#1{}{\@expandtwoargs\@removeelement{#2}#1#1}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@for@list}
% \changes{v1.1}{2007/07/29}{This macro added}
% |\caption@for@list|\marg{cmd}\marg{code with \#1}
%    \begin{macrocode}
\newcommand*\caption@for@list[2]{%
  \caption@ifempty@list#1{}{%
    \def\caption@tempb##1{#2}%
    \@for\caption@tempa:=#1\do{%
      \expandafter\caption@tempb\expandafter{\caption@tempa}}}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@ifempty@list}
% \changes{v1.1}{2007/07/29}{This macro added}
% |\caption@ifempty@list|\marg{cmd}\marg{true}\marg{false}
%    \begin{macrocode}
\newcommand*\caption@ifempty@list[1]{%
  \ifx#1\@undefined
    \expandafter\@firstoftwo
  \else\ifx#1\relax
    \expandafter\expandafter\expandafter\@firstoftwo
  \else\ifx#1\@empty
    \expandafter\expandafter\expandafter\expandafter
      \expandafter\expandafter\expandafter\@firstoftwo
  \else
    \expandafter\expandafter\expandafter\expandafter
      \expandafter\expandafter\expandafter\@secondoftwo
  \fi\fi\fi}
%    \end{macrocode}
% \end{macro}
%
% \pagebreak[3]
% \begin{macro}{\caption@setbool}
% \begin{macro}{\caption@set@bool}
% \changes{v1.1}{2007/04/05}{\cs{caption@set@bool}\marg{cmd}\marg{value} added}
% \begin{macro}{\caption@ifbool}
% \begin{macro}{\caption@undefbool}
%  For setting and testing boolean options we offer these three helper macros:
%  \begin{quote}
%  |\caption@setbool|\marg{name}\marg{value}\\
%  |                |(with |value = false/true/no/yes/off/on/0/1|)\\
%  |\caption@ifbool|\marg{name}\marg{if-clause}\marg{else-clause}\\
%  |\caption@undefbool|\marg{name}
%  \end{quote}
%    \begin{macrocode}
\newcommand*\caption@setbool[1]{%
  \expandafter\caption@set@bool\csname caption@if#1\endcsname}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@set@bool[2]{%
  \caption@ifinlist{#2}{1,true,yes,on}{%
    \let#1\@firstoftwo
  }{\caption@ifinlist{#2}{0,false,no,off}{%
    \let#1\@secondoftwo
  }{%
    \caption@Error{Undefined boolean value `#2'}%
  }}}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@ifbool[1]{\@nameuse{caption@if#1}}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@undefbool[1]{\@nameundef{caption@if#1}}
%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\caption@teststar}
% \changes{v1.1}{2007/05/08}{This macro and its usage added}
% \changes{v1.1e}{2007/10/28}{\cs{caption@teststar@} added}
%  |\caption@teststar|\marg{cmd}\marg{star arg}\marg{non-star arg}\\
%  |\caption@teststar@|\marg{cmd}\marg{star arg}\marg{non-star arg}
%    \begin{macrocode}
\newcommand*\caption@teststar[3]{\@ifstar{#1{#2}}{#1{#3}}}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@teststar@[3]{%
  \@ifstar{#1{#2}}{\caption@ifatletter{#1{#2}}{#1{#3}}}}
\AtBeginDocument{\let\caption@teststar@\caption@teststar}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@ifatletter{%
  \ifnum\the\catcode`\@=11
    \expandafter\@firstoftwo
  \else
    \expandafter\@secondoftwo
  \fi}
\AtBeginDocument{\let\caption@ifatletter\@secondoftwo}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@withoptargs}
% \changes{v1.1}{2007/08/12}{This macro added}
% \changes{v1.5}{2012/04/09}{This macro revised}
%  |\caption@withoptargs|\marg{cmd}
%    \begin{macrocode}
\newcommand*\caption@withoptargs[1]{%
  \@ifstar
    {\def\caption@tempa{*}\caption@@withoptargs{#1}}%
    {\def\caption@tempa{}\caption@@withoptargs{#1}}}
%    \end{macrocode}
%    \begin{macrocode}
\def\caption@@withoptargs#1{%
  \@ifnextchar[%]
    {\caption@@@withoptargs{#1}}%
    {\caption@@@@withoptargs{#1}}}
%    \end{macrocode}
%    \begin{macrocode}
\def\caption@@@withoptargs#1[#2]{%
  \l@addto@macro\caption@tempa{[{#2}]}%
  \caption@@withoptargs{#1}}
%    \end{macrocode}
%    \begin{macrocode}
\def\caption@@@@withoptargs#1{%
  \def\caption@tempb{#1}%
  \expandafter\caption@tempb\expandafter{\caption@tempa}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@gobble}
% \changes{v1.4}{2011/08/19}{This macro added}
%  |\caption@gobble*|\oarg{arg}\oarg{\ldots}\marg{arg}\par
% Same as |\@gobble|, but gobbles optional arguments as well.
%    \begin{macrocode}
\DeclareRobustCommand*\caption@gobble{%
  \caption@withoptargs\@gobbletwo}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@AtBeginDocument}
% \changes{v1.1}{2007/04/13}{This macro and its usage added}
% \changes{v1.2e}{2010/01/09}{Adapted to the combine document class}
%  |\caption@AtBeginDocument*|\marg{code}\\
%  Same as |\AtBeginDocument| but the execution of code
%  will be surrounded by two |\PackageInfo|s.
%  The starred variant causes the code to be executed after all code
%  specified using the non-starred variant.
%    \begin{macrocode}
\let\caption@begindocumenthook\@empty
\let\caption@@begindocumenthook\@empty
%    \end{macrocode}
%    \begin{macrocode}
\def\caption@AtBeginDocument{%
  \caption@teststar\g@addto@macro
    \caption@@begindocumenthook\caption@begindocumenthook}
%\@onlypreamble\caption@AtBeginDocument
%    \end{macrocode}
%    \begin{macrocode}
\AtBeginDocument{%
   \caption@InfoNoLine{Begin \noexpand\AtBeginDocument code}%
%    \end{macrocode}
%    \begin{macrocode}
   \def\caption@AtBeginDocument{%
     \@ifstar{\g@addto@macro\caption@@begindocumenthook}\@firstofone}%
   \caption@begindocumenthook
   \let\caption@begindocumenthook\relax
%    \end{macrocode}
%    \begin{macrocode}
   \def\caption@AtBeginDocument{%
     \@ifstar\@firstofone\@firstofone}%
   \caption@@begindocumenthook
   \let\caption@@begindocumenthook\relax
%    \end{macrocode}
%    \begin{macrocode}
   \caption@InfoNoLine{End \noexpand\AtBeginDocument code}}
%    \end{macrocode}
% \end{macro}
%
% \section{Information, Warnings, and Errors}
%
% \begin{macro}{\caption@Info}
% \changes{v1.3}{2010/10/25}{Moved from package to kernel}
%  |\caption@Info|\marg{message}
%    \begin{macrocode}
\newcommand*\caption@Info[1]{%
  \PackageInfo{caption}{#1}}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\caption@InfoNoLine}
% \changes{v1.3}{2010/10/25}{Moved from package to kernel}
%  |\caption@InfoNoLine|\marg{message}\\
%  \Note{The \cs{@gobble} at the end of the 2nd argument of
%   \cs{PackageInfo} suppresses the line number info.
%   See TLC2\cite{TLC2}, A.4.7, p885 for details.}
%    \begin{macrocode}
\newcommand*\caption@InfoNoLine[1]{%
  \caption@Info{#1\@gobble}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@Warning}
% \changes{v1.1c}{2007/10/14}{This macro added, will now be used for warnings}
%  |\caption@Warning|\marg{message}
%    \begin{macrocode}
\newcommand*\caption@Warning[1]{%
  \caption@WarningNoLine{#1\on@line}}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\caption@WarningNoLine}
% \changes{v1.1c}{2007/10/14}{This macro added, will now be used for warnings}
%  |\caption@WarningNoLine|\marg{message}
%    \begin{macrocode}
\newcommand*\caption@WarningNoLine[1]{%
  \PackageWarning{caption}{#1.^^J\caption@wh\@gobbletwo}}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@wh{%
  See the caption package documentation for explanation.}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@Error}
% \changes{v1.0j}{2007/01/20}{This macro added, will now be used for errors}
% \changes{v1.0o}{2007/04/11}{Renamed from \cs{caption@error} to \cs{caption@Error}}
% \changes{v1.1b}{2007/09/18}{Usage of \cs{caption@Package} removed}
%  |\caption@Error|\marg{message}
%    \begin{macrocode}
\newcommand*\caption@Error[1]{%
  \PackageError{caption}{#1}\caption@eh}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@eh{%
  If you do not understand this error, please take a closer look\MessageBreak
  at the documentation of the `caption' package, especially the\MessageBreak
  section about errors.\MessageBreak\@ehc}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@KV@err}
% \changes{v1.1b}{2007/09/18}{This macro added}
%    \begin{macrocode}
\let\caption@KV@err\caption@Error
%    \end{macrocode}
% \end{macro}
%
% \section{Using the keyval package}
%
% We need the \package{keyval} package for option handling, so we load it here.
%    \begin{macrocode}
\RequirePackage{keyval}[1997/11/10]
%    \end{macrocode}
%
% \begin{macro}{\undefine@key}
% |\undefine@key|\marg{family}\marg{key}\par
% This helper macro is the opposite of |\define@key|, it removes a keyval
% definition.
%    \begin{macrocode}
\providecommand*\undefine@key[2]{%
  \@nameundef{KV@#1@#2}\@nameundef{KV@#1@#2@default}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\@onlypreamble@key}
% \changes{v1.1}{2007/07/22}{This macro added}
% \changes{v1.1e}{2007/11/01}{\cs{KV@err} will be used now instead of \cs{@notprerr}}
%  |\onlypreamble@key|\marg{family}\marg{key}\par
%  Analogous to |\@onlypreamble| from \LaTeXe.
%    \begin{macrocode}
\providecommand*\@preamble@keys{}
\providecommand*\@onlypreamble@key[2]{\@cons\@preamble@keys{{#1}{#2}}}
\@onlypreamble\@onlypreamble@key
\@onlypreamble\@preamble@keys
%    \end{macrocode}
%    \begin{macrocode}
\providecommand*\@notprerr@key[1]{\KV@err{Can be used only in preamble}}
%    \end{macrocode}
%    \begin{macrocode}
\caption@AtBeginDocument*{%
  \def\@elt#1#2{\expandafter\let\csname KV@#1@#2\endcsname\@notprerr@key}%
  \@preamble@keys
  \let\@elt\relax}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\DeclareCaptionOption}
%  |\DeclareCaptionOption|\marg{option}\oarg{default value}\marg{code}\\
%  |\DeclareCaptionOption*|\marg{option}\oarg{default value}\marg{code}\par
%  We declare our options using these commands (instead of using
%  |\DeclareOption| offered by \LaTeXe), so the keyval package is used.
%  The starred form makes the option available during the lifetime of the
%  current package only, so they can be used with |\usepackage|, but
%  \emph{not} with |\captionsetup| later on.
%    \begin{macrocode}
\newcommand*\DeclareCaptionOption{%
  \caption@teststar\caption@declareoption\AtEndOfPackage\@gobble}
\@onlypreamble\DeclareCaptionOption
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@declareoption[2]{%
  #1{\undefine@key{caption}{#2}}\caption@declare@option{#2}}
\@onlypreamble\caption@declareoption
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@declare@option{%
  \define@key{caption}}
%% no \@onlypreamble\caption@declare@option, will be used by \captionsetup
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\DeclareCaptionOptionNoValue}
% \changes{v1.1c}{2007/10/06}{This macro added}
%  |\DeclareCaptionOptionNoValue|\marg{option}\marg{code}\\
%  |\DeclareCaptionOptionNoValue*|\marg{option}\marg{code}\par
% Same as \cs{DeclareCaptionOption} but issues an error if a value is given.
%    \begin{macrocode}
\newcommand*\DeclareCaptionOptionNoValue{%
  \caption@teststar\caption@declareoption@novalue\AtEndOfPackage\@gobble}
\@onlypreamble\DeclareCaptionOptionNoValue
%    \end{macrocode}
%    \begin{macrocode}
\newcommand\caption@declareoption@novalue[3]{%
  \caption@declareoption{#1}{#2}[\KV@err]{%
    \caption@option@novalue{#2}{##1}{#3}}}
\@onlypreamble\caption@declareoption@novalue
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@option@novalue[2]{%
  \ifx\KV@err#2%
    \expandafter\@firstofone
  \else
    \KV@err{No value allowed for #1}%
    \expandafter\@gobble
  \fi}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\ifcaptionsetup@star}
% \changes{v1.2a}{2008/01/12}{This macro added}
% If the starred form of |\captionsetup| is used, this will be set to |true|.
% (It will be reset to |false| at the end of |\caption@setkeys|.)
%    \begin{macrocode}
\newif\ifcaptionsetup@star
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\captionsetup}
% \changes{v1.0a}{2004/01/17}{Bugfix: Missing \% added}
% \changes{v1.1}{2007/07/22}{Starred-variant added}
% \changes{v1.1e}{2007/07/27}{Inside packages the starred variant will be used automatically}
% \changes{v1.2}{2007/11/16}{Bugfix 07-11-09: `space hack' added}
% \changes{v1.2a}{2008/01/12}{\cs{ifcaptionsetup@star} will be set now}
% \changes{v1.5}{2012/04/09}{Support of multiple optional arguments added}
% \changes{v1.8h}{2020/01/03}{Syntax check of saved options added}
%  |\captionsetup|\oarg{type}\ldots\marg{keyval-list of options}\\
%  |\captionsetup*|\oarg{type}\ldots\marg{keyval-list of options}\par
%  If the optional argument `type' is specified, we simply save or append
%  the option list, otherwise we `execute' it with |\setkeys|.
%  (The non-starred variant issues a warning if \meta{keyval-list of options}
%   is not used later on.)
%  \Note{The starred variant will be used inside packages automatically.}
%    \begin{macrocode}
\newcommand*\captionsetup{%
  \caption@teststar@\@captionsetup\@gobble\@firstofone}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\@captionsetup[1]{%
  \captionsetup@startrue#1\captionsetup@starfalse
  \@ifnextchar[%]
    \caption@setup@options\caption@setup}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@setup{\caption@setkeys{caption}}
%    \end{macrocode}
%    \begin{macrocode}
\def\caption@setup@options[#1]{%
  \@ifnextchar[%]
    {\caption@stepthecounter
     \caption@withoptargs{\@expandtwoargs
       \caption@setup@options@i{#1}{@\caption@thecounter}}}%
    {\caption@setup@options@{#1}}}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@setup@options@i[4]{%
  \caption@declare@option{#2}[]{\captionsetup#3{#4}}%
  \caption@setup@options@{#1}{#2}}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@setup@options@[2]{%
  \@bsphack
    \ifcaptionsetup@star\captionsetup@starfalse\else\caption@addtooptlist{#1}\fi
    \caption@checkoptions{#2}%
    \expandafter\caption@l@addto@list\csname caption@opt@#1\endcsname{#2}%
  \@esphack}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@checkoptions}
% \changes{v1.8h}{2020/01/03}{This macro added}
% Check the syntax of the given options by executing them inside a group.
%    \begin{macrocode}
\newcommand*\caption@checkoptions[1]{%
  \begingroup
    \caption@prepare@optioncheck
    \caption@setup{#1}%
  \endgroup}
%    \end{macrocode}
%    \begin{macrocode}
\providecommand*\caption@prepare@optioncheck{}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\IfCaptionOptionCheck}
% \changes{v1.10}{2020/05/10}{This macro added}
% |\IfCaptionOptionCheck|\marg{yes-code}\marg{no-code}
% executes the \meta{yes-code} if options are just checked for syntax, and \meta{no-code} if not.
%    \begin{macrocode}
\let\IfCaptionOptionCheck\@secondoftwo
%    \end{macrocode}
%    \begin{macrocode}
\g@addto@macro\caption@prepare@optioncheck{%
  \let\IfCaptionOptionCheck\@firstoftwo}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\clearcaptionsetup}
% \changes{v1.1}{2007/07/29}{Optional argument added}
% \changes{v1.1}{2007/08/17}{Starred variant added}
% \changes{v1.1e}{2007/07/27}{Inside packages the starred variant will be used automatically}
% \changes{v1.2}{2007/11/16}{Bugfix 07-11-09: `space hack' added}
%  |\clearcaptionsetup|\oarg{option}\marg{type}\\
%  |\clearcaptionsetup*|\oarg{option}\marg{type}\par
%  This removes the saved option list associated with \meta{type}.
%  If \meta{option} is given, only this option will be removed from the list.
%  (The starred variant does not issue warnings.)
%  \Note{The starred variant will be used inside packages automatically.}
%    \begin{macrocode}
\newcommand*\clearcaptionsetup{%
  \caption@teststar@\@clearcaptionsetup\@gobble\@firstofone}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\@clearcaptionsetup[1]{%
  \let\caption@tempa#1%
  \@testopt\@@clearcaptionsetup{}}
%    \end{macrocode}
%    \begin{macrocode}
\def\@@clearcaptionsetup[#1]#2{%
  \@bsphack
    \expandafter\caption@ifempty@list\csname caption@opt@#2\endcsname
      {\caption@tempa{\caption@Warning{Option list `#2' undefined}}}%
      {\ifx,#1,%
         \caption@clearsetup{#2}%
       \else
         \caption@@removefromsetup{#1}{#2}%
       \fi}%
  \@esphack}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@clearsetup[1]{%
  \caption@removefromoptlist{#1}%
  \@nameundef{caption@opt@#1}}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@removefromsetup{%
  \let\caption@tempa\@gobble
  \caption@@removefromsetup}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@@removefromsetup[2]{%
  \expandafter\let\expandafter\@tempa\csname caption@opt@#2\endcsname
  \expandafter\let\csname caption@opt@#2\endcsname\@undefined
  \def\@tempb##1=##2\@nil{##1}%
  \edef\@tempc{#1}%
  \@for\@tempa:=\@tempa\do{%
    \edef\@tempd{\expandafter\@tempb\@tempa=\@nil}%
    \ifx\@tempd\@tempc
      \let\caption@tempa\@gobble
    \else
      \expandafter\expandafter\expandafter\caption@l@addto@list
        \expandafter\csname caption@opt@#2\expandafter\endcsname
        \expandafter{\@tempa}%
    \fi}%
  \expandafter\caption@ifempty@list\csname caption@opt@#2\endcsname
    {\caption@removefromoptlist{#2}}{}%
  \caption@tempa{\caption@Warning{%
    Option `#1' was not in list `#2'}}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\showcaptionsetup}
% \changes{v1.0d}{2005/05/03}{Optimized for memory usage}
% \changes{v1.1}{2007/07/29}{Bugfix: Does not expand option list anymore}
% \changes{v1.2}{2007/11/16}{Bugfix 07-11-09: `space hack' added}
%  |\showcaptionsetup|\oarg{package}\marg{type}\par
%  This comes for debugging issues: It shows the saved option list which
%  is associated with \meta{type}.
%    \begin{macrocode}
\newcommand*\showcaptionsetup[2][\@firstofone]{%
  \@bsphack
    \GenericWarning{}{%
      #1 Caption Info: Option list on `#2'\MessageBreak
      #1 Caption Data: \@ifundefined{caption@opt@#2}{%
        -none-%
      }{%
        {\expandafter\expandafter\expandafter\strip@prefix
           \expandafter\meaning\csname caption@opt@#2\endcsname}%
      }}%
  \@esphack}
%    \end{macrocode}
% \end{macro}
%
% \changes{v1.1}{2007/07/02}{Option \opt{options=} added}
% \changes{v1.3}{2010/09/05}{Option \opt{options*=} added}
% \changes{v1.4b}{2012/01/12}{Option \opt{options*=} removed}
%    \begin{macrocode}
\DeclareCaptionOption{options}{\caption@setoptions{#1}}
%    \end{macrocode}
%
% \begin{macro}{\caption@setoptions}
% \changes{v1.0g}{2006/01/03}{Optional argument added}
% \changes{v1.0h}{2006/01/26}{Revised}
% \changes{v1.0j}{2007/01/30}{Optional argument removed}
% \changes{v1.1}{2007/04/11}{Usage of \cs{clearcaptionsetup} added}
% \changes{v1.1}{2007/05/09}{Renamed from \cs{caption@settype} to \cs{caption@setoptions}}
% \changes{v1.2}{2007/12/03}{Definition of \cs{caption@iftypewarning} removed}
% \changes{v1.3}{2010/09/05}{Starred variant added}
% \changes{v1.4b}{2012/01/12}{Starred variant removed}
%  |\caption@setoptions|\marg{type or environment or\ldots}\par
%  Caption options which have been saved with |\captionsetup|\oarg{type} can
%  be executed by using this command.
%  It simply executes the saved option list (and clears it afterwards),
%  if there is any.
% \iffalse
% (The starred variant do not clear the option list.)
% \fi
%    \begin{macrocode}
\newcommand*\caption@setoptions[1]{%
  \caption@Debug{options=#1}%
  \expandafter\let\expandafter\caption@opt\csname caption@opt@#1\endcsname
  \ifx\caption@opt\relax \else
    \caption@xsetup\caption@opt
    \caption@clearsetup{#1}%
  \fi}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@xsetup[1]{\expandafter\caption@setup\expandafter{#1}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@addtooptlist}
% \changes{v1.1}{2007/07/22}{This macro added}
% \begin{macro}{\caption@removefromoptlist}
% \changes{v1.1}{2007/07/22}{This macro added}
% \changes{v1.2c}{2008/08/24}{Fatal typo corrected}
% |\caption@addtooptlist|\marg{type}\\
% |\caption@removefromoptlist|\marg{type}\par
%  Adds or removes an \meta{type} to the list of unused caption options.
%  Note that the catcodes of \meta{type} are sanitized here so removing
%  \meta{type} from the list do not fail when the \package{float} package
%  is used (since |\float@getstyle| gives a result which tokens have catcode
%  12 $=$ ``other'').
%    \begin{macrocode}
\newcommand*\caption@addtooptlist[1]{%
  \@ifundefined{caption@opt@#1@lineno}{%
    \caption@dooptlist\caption@g@addto@list{#1}%
    \expandafter\xdef\csname caption@opt@#1@lineno\endcsname{\the\inputlineno}%
  }{}}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@removefromoptlist[1]{%
  \caption@dooptlist\caption@g@removefrom@list{#1}%
  \global\expandafter\let\csname caption@opt@#1@lineno\endcsname\@undefined}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@dooptlist[2]{%
  \begingroup
    \edef\@tempa{#2}\@onelevel@sanitize\@tempa
    \expandafter#1\expandafter\caption@optlist\expandafter{\@tempa}%
  \endgroup}
%    \end{macrocode}
%    \begin{macrocode}
\AtEndDocument{%
  \caption@for@list\caption@optlist{%
    \caption@WarningNoLine{%
      Unused \string\captionsetup[#1]
      on input line \csname caption@opt@#1@lineno\endcsname}}}
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\caption@setkeys}
% \changes{v1.0g}{2006/01/03}{This macro added}
% \changes{v1.0j}{2007/01/20}{Bugfix: Usage of \cs{caption@keydepth} added}
% \changes{v1.0j}{2007/01/30}{Optional argument added}
% \changes{v1.0n}{2007/04/08}{\cs{caption@keydepth} is now a command instead of a counter}
% \changes{v1.1b}{2007/09/18}{Usage of \cs{caption@Package} removed, we use \cs{caption@KV@err} instead}
% \changes{v1.2}{2007/11/16}{Bugfix 07-11-09: `space hack' added}
% \changes{v1.2a}{2008/01/12}{\cs{captionsetup@starfalse} added}
% \changes{v1.2d}{2009/09/30}{Bugfix 09-09-29: Missing error handler will be defined automatically}
% \changes{v1.4}{2011/08/24}{Redefinition of \cs{XKV@err} added}
%  |\caption@setkeys|\oarg{package}\marg{family}\marg{key-values}\par
%  This one simply calls |\setkeys|\marg{family}\marg{key-values}
%  but lets the error messages not refer to the \package{keyval} package,
%  but to the \meta{package} package instead.
%    \begin{macrocode}
\newcommand*\caption@setkeys{\@dblarg\caption@@setkeys}
%    \end{macrocode}
%    \begin{macrocode}
\long\def\caption@@setkeys[#1]#2#3{%
  \@bsphack
%    \end{macrocode}
%    \begin{macrocode}
  \expandafter\let\csname ORI@KV@err\caption@keydepth\endcsname\KV@err
  \expandafter\let\csname ORI@KV@errx\caption@keydepth\endcsname\KV@errx
  \expandafter\let\csname ORI@XKV@err\caption@keydepth\endcsname\XKV@err
  \edef\caption@keydepth{\caption@keydepth i}%
%    \end{macrocode}
%    \begin{macrocode}
  \expandafter\let\expandafter\KV@err\csname #1@KV@err\endcsname
  \ifx\KV@err\relax
    \def\KV@err##1{\PackageError{#1}{##1}{%
      See the #1 package documentation for explanation.}}%
  \fi
  \def\KV@errx{\KV@err}%
  \def\XKV@err{\let\@tempa\XKV@tkey\KV@err}%
%    \end{macrocode}
%    \begin{macrocode}
  \caption@Debug{\protect\setkeys{#2}{#3}}%
  \setkeys{#2}{#3}%
%    \end{macrocode}
%    \begin{macrocode}
  \edef\caption@keydepth{\expandafter\@gobble\caption@keydepth}%
  \expandafter\let\expandafter\KV@err\csname ORI@KV@err\caption@keydepth\endcsname
  \expandafter\let\expandafter\KV@errx\csname ORI@KV@errx\caption@keydepth\endcsname
  \expandafter\let\expandafter\XKV@err\csname ORI@XKV@err\caption@keydepth\endcsname
%    \end{macrocode}
%    \begin{macrocode}
  \ifx\caption@keydepth\@empty \captionsetup@starfalse \fi
%    \end{macrocode}
%    \begin{macrocode}
  \@esphack}
%    \end{macrocode}
%    \begin{macrocode}
\let\caption@keydepth\@empty
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@ExecuteOptions}
% \changes{v1.1}{2007/07/15}{This macro added}
% \changes{v1.3}{2010/09/04}{Depends on package now}
%  |\caption@ExecuteOptions|\marg{package}\marg{key-values}\par
%  We execute our options using the keyval interface, so we use this one
%  instead of |\ExecuteOptions| offered by \LaTeXe.
%    \begin{macrocode}
\newcommand*\caption@ExecuteOptions[2]{%
  \expandafter\@expandtwoargs\csname caption@setkeys@#1\endcsname{#1}{#2}}%
\@onlypreamble\caption@ExecuteOptions
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@ProcessOptions}
% \changes{v1.0a}{2004/01/23}{Bugfix, see
%        \purett{news:400D360C.9678329F@gmx.net} for details}
% \changes{v1.0g}{2006/01/03}{Improvement, uses \cs{caption@setkeys}
%        instead of \cs{setkeys}}
% \changes{v1.0h}{2006/02/23}{Bugfix, now processes only those global
%        options which have a default value}
% \changes{v1.0j}{2007/01/30}{\cs{ProcessOptionsWithKV} renamed to
%        \cs{caption@ProcessOptions} and moved from the package to the kernel}
% \changes{v1.1}{2007/04/17}{Star variant added}
%  |\caption@ProcessOptions*|\marg{package}\par
%  We process our options using the keyval package, so we use this one
%  instead of |\ProcessOptions| offered by \LaTeXe.
%  The starred variant do not process the global options.
%  (This code was taken from the \package{hyperref} package\cite{hyperref}
%   \version{6.74} and improved.)
%    \begin{macrocode}
\newcommand*\caption@ProcessOptions{%
  \caption@teststar\caption@@ProcessOptions\@gobble\@firstofone}
\@onlypreamble\caption@ProcessOptions
%    \end{macrocode}
%    \begin{macrocode}
\newcommand\caption@@ProcessOptions[2]{%
  \let\@tempc\relax
  \let\caption@tempa\@empty
  #1{% \@firstofone -or- \@gobble
    \@for\CurrentOption:=\@classoptionslist\do{%
      \@ifundefined{KV@#2@\CurrentOption}{}{%
        \@ifundefined{KV@#2@\CurrentOption @default}{%
          \PackageInfo{#2}{Global option `\CurrentOption' ignored}%
        }{%
          \PackageInfo{#2}{Global option `\CurrentOption' processed}%
          \edef\caption@tempa{\caption@tempa\CurrentOption,}%
          \@expandtwoargs\@removeelement\CurrentOption
            \@unusedoptionlist\@unusedoptionlist
        }%
      }%
    }%
    \let\CurrentOption\@empty
  }%
  \caption@ExecuteOptions{#2}{\caption@tempa\@ptionlist{\@currname.\@currext}}%
  \AtEndOfPackage{\let\@unprocessedoptions\relax}}
\@onlypreamble\caption@@ProcessOptions
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@SetupOptions}
% \changes{v1.3}{2010/09/04}{This macro added}
%  |\caption@SetupOptions|\marg{package}\marg{code}\par
%  After calling this macro |\caption@ExecuteOptions| and
% |\usepackage|\oarg{options}\marg{package}
%  will both be mapped to \meta{code} with \meta{package} and \meta{options}
%  as arguments |#1| and |#2|. (This helps avoiding ``Option clash'' errors.)
%    \begin{macrocode}
\newcommand\caption@SetupOptions[2]{%
  \@namedef{caption@setkeys@#1}##1##2{#2}%
  \expandafter\@onlypreamble\csname caption@setkeys@#1\endcsname
  \@cons\caption@SetupOptions@list{{#1}}}
\@onlypreamble\caption@SetupOptions
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@SetupOptions@list{}
\@onlypreamble\caption@SetupOptions@list
%    \end{macrocode}
%    \begin{macrocode}
\let\caption@onefilewithoptions\@onefilewithoptions
\def\@onefilewithoptions#1[#2]{%
  \begingroup
  \def\@tempa{%
    \endgroup
    \caption@onefilewithoptions{#1}[{#2}]}%
  \def\@tempb{#1}%
  \def\@elt##1{%
    \def\@tempc{##1}%
    \ifx\@tempb\@tempc
      \def\@tempa{%
        \endgroup
        \caption@ExecuteOptions{#1}{#2}%
        \caption@onefilewithoptions{#1}[]}%
    \fi}
  \caption@SetupOptions@list
  \@tempa}
\@onlypreamble\caption@onefilewithoptions
%    \end{macrocode}
% \end{macro}
%
% \section{Margin resp. width}
% \changes{v1.0n}{2007/04/01}{\cs{captionmarginx} renamed to \cs{captionmargin@}}
% \changes{v1.0n}{2007/04/03}{Option `twoside' added}
% \changes{v1.1}{2007/08/11}{Options `margin*', `minmargin', and `maxmargin' added}
% \changes{v1.2}{2007/11/10}{Option `oneside' added}
%
% \begin{macro}{\captionmargin}
% \begin{macro}{\captionwidth}
%  |\captionmargin| and |\captionwidth| contain the extra margin
%  resp. the total width used for captions. Please never set these values in
%  a direct way, they are just accessible in user documents to provide
%  compatibility to \version{1.x}.\par
%  Note that we can only set one value at a time, `margin' \emph{or} `width'.
%  If |\captionwidth| is not zero we will take this value afterwards,
%  otherwise |\captionmargin| and |\captionmargin@|.
%    \begin{macrocode}
\newdimen\captionmargin
\newdimen\captionmargin@
\newdimen\captionwidth
\newdimen\caption@tempdima
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
%    \begin{macrocode}
\DeclareCaptionOption{margin}{\setcaptionmargin{#1}}
\DeclareCaptionOption{margin*}{\setcaptionmargin*{#1}}
\DeclareCaptionOption{width}{\setcaptionwidth{#1}}
\DeclareCaptionOption{width*}{\setcaptionwidth*{#1}}
%    \end{macrocode}
%    \begin{macrocode}
\DeclareCaptionOption{calcmargin}{\caption@setcalcmargin{#1}}
\DeclareCaptionOption{calcmargin*}{\caption@setcalcmargin*{#1}}
\DeclareCaptionOption{calcwidth}{\caption@setcalcwidth{#1}}
\DeclareCaptionOption{calcwidth*}{\caption@setcalcwidth*{#1}}
%    \end{macrocode}
%    \begin{macrocode}
\DeclareCaptionOption{twoside}[1]{\caption@set@bool\caption@iftwoside{#1}}
\DeclareCaptionOptionNoValue{oneside}{\caption@set@bool\caption@iftwoside0}
%    \end{macrocode}
%    \begin{macrocode}
\DeclareCaptionOption{minmargin}{\caption@setoptcmd\caption@minmargin{#1}}
\DeclareCaptionOption{maxmargin}{\caption@setoptcmd\caption@maxmargin{#1}}
%    \end{macrocode}
%
% \begin{macro}{\setcaptionmargin}
% \changes{v1.0f}{2005/10/24}{Renamed from \cs{caption@setmargin} to \cs{setcaptionmargin}}
% \changes{v1.0f}{2005/10/24}{\cs{setcaptionmargin} enhanced so it can take
%                             left+right margin}
% \changes{v1.1}{2007/08/11}{Starred variant added}
% \changes{v1.1}{2007/08/12}{\cs{setlength}\cs{captionmargin} \&
%        \cs{setlength}\cs{captionmargin@} swapped so
%        `\texttt{margin*=}\cs{captionmargin}' works in singleline options}
% \changes{v1.3}{2010/11/07}{Support for option \opt{calcmargin} added}
%  |\setcaptionmargin|\marg{amount}\\
%  |\setcaptionmargin*|\marg{amount}\par
%  Please never use this in user documents, it's just there to
%  provide compatibility to the \package{caption2} package.
%    \begin{macrocode}
\newcommand*\setcaptionmargin{%
  \caption@resetcalcmargin
  \caption@setmargin}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@setmargin{%
  \caption@teststar\caption@@setmargin\@gobble\@firstofone}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@@setmargin[2]{%
  #1{\captionwidth\z@}%
  \caption@@@setmargin#2,#2,\@nil}
%    \end{macrocode}
%    \begin{macrocode}
\def\caption@@@setmargin#1,#2,#3\@nil{%
  \setlength\captionmargin@{#2}%
  \setlength\captionmargin{#1}%
  \addtolength\captionmargin@{-\captionmargin}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\setcaptionwidth}
% \changes{v1.0f}{2005/10/24}{Renamed from \cs{caption@setwidth} to \cs{setcaptionwidth}}
% \changes{v1.3}{2010/11/07}{Starred variant added}
% \changes{v1.3}{2010/11/07}{Support for option \opt{calcwidth} added}
%  |\setcaptionwidth|\marg{amount}\\
%  |\setcaptionwidth*|\marg{amount}\par
%  Please never use this in user documents, it's just there to
%  provide compatibility to the \package{caption2} package.
%    \begin{macrocode}
\newcommand*\setcaptionwidth{%
  \caption@resetcalcmargin
  \caption@setwidth}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@setwidth{%
  \caption@teststar\caption@@setwidth\@gobble\@firstofone}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@@setwidth[2]{%
  #1{\captionmargin\z@\captionmargin@\z@}%
  \setlength\captionwidth{#2}}%
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@resetcalcmargin}
% \changes{v1.3}{2010/11/07}{This macro added}
%    \begin{macrocode}
\newcommand*\caption@resetcalcmargin{%
  \let\caption@calcmargin@hook\@empty}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@setcalcmargin}
% \changes{v1.3}{2010/11/07}{This macro added}
%    \begin{macrocode}
\newcommand*\caption@setcalcmargin{%
  \caption@teststar{\caption@@setcalcmargin\caption@setmargin}%
    \@secondoftwo\@firstoftwo}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@@setcalcmargin[3]{%
  #2{\caption@resetcalcmargin
     \l@addto@macro\caption@calcmargin@hook{#1{#3}}}%
    {\l@addto@macro\caption@calcmargin@hook{#1*{#3}}}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@setcalcwidth}
% \changes{v1.3}{2010/11/07}{This macro added}
%    \begin{macrocode}
\newcommand*\caption@setcalcwidth{%
  \caption@teststar{\caption@@setcalcmargin\caption@setwidth}%
    \@secondoftwo\@firstoftwo}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@counter}
% \changes{v1.0n}{2007/04/03}{This counter added}
% \changes{v1.1e}{2007/10/28}{Renamed to \cs{caption@thecounter}; \cs{caption@stepcounter} added}
% \changes{v1.5}{2012/04/09}{\cs{caption@stepcounter} renamed to \cs{caption@stepthecounter}}
% Internal counter. At the moment it will be used inside
% |\caption@ifoddpage| only.
%    \begin{macrocode}
\newcommand*\caption@thecounter{0}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@stepthecounter{%
  \@tempcnta\caption@thecounter
  \advance\@tempcnta\@ne
  \xdef\caption@thecounter{\the\@tempcnta}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@newlabel}
% \changes{v1.0n}{2007/04/03}{This macro added}
%  This command is a modified version of |\newlabel| from \LaTeX2e.
%  It will be written to the \texttt{.aux} file to
%  pass label information from one run to another.
%  (We use it inside |\caption@ifoddpage| and |\caption@ragged|.)
%    \begin{macrocode}
\newcommand*\caption@newlabel{\@newl@bel{caption@r}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@thepage}
% \changes{v1.0n}{2007/04/03}{This macro added}
%  This command is a modified version of |\thepage| from \LaTeX2e.
%  It will be used inside |\caption@ifoddpage| only.
%    \begin{macrocode}
\newcommand*\caption@thepage{\the\c@page}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@label}
% \changes{v1.1}{2007/09/01}{This macro added}
% \changes{v1.2}{2007/12/03}{Definition of \cs{caption@newlabel} in AUX file added}
%  This command is a modified version of |\label| from \LaTeX2e.
%  It will be used inside |\caption@ifoddpage| and |\FP@helpNote|.
%    \begin{macrocode}
\newcommand*\caption@label[1]{%
  \caption@@label
  \protected@write\@auxout{\let\caption@thepage\relax}%
         {\string\caption@newlabel{#1}{\caption@thepage}}}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@@label{%
  \global\let\caption@@label\relax
  \protected@write\@auxout{}%
    {\string\providecommand*\string\caption@newlabel[2]{}}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@pageref}
% \changes{v1.1}{2007/09/01}{This macro added}
% \changes{v1.2d}{2009/10/09}{Uses \cs{@latex@warning} instead of \cs{caption@Warning} now}
%  This command is a modified version of |\pageref| from \LaTeX2e.
%  It will be used inside |\caption@ifoddpage| and |\FP@helpNote|.
%    \begin{macrocode}
\newcommand*\caption@pageref[1]{%
  \expandafter\ifx\csname caption@r@#1\endcsname\relax
    \G@refundefinedtrue % => 'There are undefined references.'
    \@latex@warning{Reference `#1' on page \thepage \space undefined}%
  \else
    \expandafter\let\expandafter\caption@thepage\csname caption@r@#1\endcsname
  \fi}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@ifoddpage}
% \changes{v1.0n}{2007/04/03}{This macro added}
% \changes{v1.1e}{2007/10/28}{Incrementation of counter moved to \cs{caption@@make}}
%  At the moment this macro uses an own label\ldots ref mechanism,
%  but an alternative implementation method would be using the
%  \package{refcount} package\cite{refcount} and |\ifodd\getpagerefnumber{|\ldots|}|.
%  \Note{This macro re-defines itself so the \texttt{.aux} file will
%  only be used once per group.}
%    \begin{macrocode}
\newcommand*\caption@ifoddpage{%
  \caption@iftwoside{%
    \caption@label\caption@thecounter
    \caption@pageref\caption@thecounter
    \ifodd\caption@thepage
      \let\caption@ifoddpage\@firstoftwo
    \else
      \let\caption@ifoddpage\@secondoftwo
    \fi
  }{\let\caption@ifoddpage\@firstoftwo}%
%    \end{macrocode}
%    \begin{macrocode}
  \caption@ifoddpage}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@setoptcmd}
% \changes{v1.1}{2007/08/11}{This macro added}
% |\caption@setoptcmd|\marg{cmd}\marg{off -or- value}
%    \begin{macrocode}
\newcommand*\caption@setoptcmd[2]{%
  \caption@ifinlist{#2}{0,false,no,off}{\let#1\@undefined}{\def#1{#2}}}
%    \end{macrocode}
% \end{macro}
%
% \section{Indentions}
%
% \begin{macro}{\caption@indent}
% \changes{v1.1}{2007/07/29}{Renamed from \cs{captionindent} to \cs{caption@indent}}
% \begin{macro}{\caption@parindent}
% \begin{macro}{\caption@hangindent}
%  These are the indentions we support.
%    \begin{macrocode}
\newdimen\caption@indent
\newdimen\caption@parindent
\newdimen\caption@hangindent
%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \changes{v1.0b}{2004/05/16}{Defaults added for options \opt{parindent=}
%        and \opt{hangindent=}}
% \changes{v1.0f}{2005/08/22}{Option \opt{parskip=}: \cs{AtBeginCaption}
%        replaced by \cs{caption@@par}}
% \changes{v1.0f}{2005/08/22}{Undocumented defaults for \opt{parindent=},
%        \opt{hangindent=}, and \opt{parskip=} removed}
%    \begin{macrocode}
\DeclareCaptionOption{indent}[\leftmargini]{% obsolete!
       \setlength\caption@indent{#1}}
\DeclareCaptionOption{indention}[\leftmargini]{%
       \setlength\caption@indent{#1}}
\DeclareCaptionOption{parindent}{%
       \setlength\caption@parindent{#1}}
\DeclareCaptionOption{hangindent}{%
       \setlength\caption@hangindent{#1}}
\DeclareCaptionOption{parskip}{%
       \l@addto@macro\caption@@par{\setlength\parskip{#1}}}
%    \end{macrocode}
%
% \section{Styles}
%
% \begin{macro}{\DeclareCaptionStyle}
% \changes{v1.0a}{2004/01/17}{Pass through argument \#3 so extra spaces
%        between arguments do make any harm}
%  |\DeclareCaptionStyle|\marg{name}\oarg{single-line-list-of-KV}\marg{list-of-KV}
%    \begin{macrocode}
\newcommand*\DeclareCaptionStyle[1]{%
  \@testopt{\caption@declarestyle{#1}}{}}
\@onlypreamble\DeclareCaptionStyle
%    \end{macrocode}
%    \begin{macrocode}
\def\caption@declarestyle#1[#2]#3{%
  \global\@namedef{caption@sls@#1}{#2}%
  \global\@namedef{caption@sty@#1}{#3}}
\@onlypreamble\caption@declarestyle
%    \end{macrocode}
% \end{macro}
%
% \changes{v1.2a}{2008/01/20}{Option \opt{style*=} added}
%    \begin{macrocode}
\DeclareCaptionOption{style}{\caption@setstyle{#1}}
\DeclareCaptionOption{style*}{\caption@setstyle*{#1}}
%    \end{macrocode}
%
% \begin{macro}{\caption@setstyle}
% \changes{v1.0e}{2005/06/01}{Starred variant added}
% \changes{v1.1}{2007/07/29}{Recursive style definitions should work now}
% \changes{v1.1d}{2007/10/23}{`SingleLine' renamed to `singleline' for consistency}
% \changes{v1.2}{2007/12/03}{Definition of \cs{caption@iftypewarning} removed}
%  |\caption@setstyle|\marg{name}\\
%  |\caption@setstyle*|\marg{name}\par
%  Selecting a caption style means saving the additional
%  \meta{single-line-list-of-KV} (this will be done by |\caption@sls|),
%  resetting the caption options to the base ones (this will be done using
%  |\caption@resetstyle|) and executing the \meta{list-of-KV} options
%  (this will be done using |\caption@setup|).\par
%  The starred version will give no error message if the given style is not
%  defined.
%    \begin{macrocode}
\newcommand*\caption@setstyle{%
  \caption@teststar\caption@@setstyle\@gobble\@firstofone}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@@setstyle[2]{%
  \@ifundefined{caption@sty@#2}%
    {#1{\caption@Error{Undefined style `#2'}}}%
    {\expandafter\let\expandafter\caption@sty\csname caption@sty@#2\endcsname
     \ifx\caption@setstyle@flag\@undefined
       \let\caption@setstyle@flag\relax
       \caption@resetstyle
       \caption@xsetup\caption@sty
       \let\caption@setstyle@flag\@undefined
     \else
       \caption@xsetup\caption@sty
     \fi
     \expandafter\let\expandafter\caption@sls\csname caption@sls@#2\endcsname
     \expandafter\caption@l@addto@list\expandafter\caption@opt@singleline
       \expandafter{\caption@sls}}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@resetstyle}
% \changes{v1.1}{2007/02/04}{%
%       This macro renamed from \cs{caption@setdefault} to \cs{caption@resetstyle}}
% \changes{v1.1d}{2007/10/23}{`SingleLine' renamed to `singleline' for consistency}
% \changes{v1.2}{2007/11/17}{Usage of \opt{size=} added}
% \changes{v1.2b}{2008/05/06}{Usage of \opt{rule} added}
% \changes{v1.5}{2012/03/15}{\opt{box=parbox} added}
% \changes{v1.6}{2013/05/01}{\opt{box=none} added, \opt{box=parbox} changed to \opt{parbox=parbox}}
%  This resets (nearly) all caption options to the base ones.
%  \emph{Note that this does not touch the skips and the positioning!}
%    \begin{macrocode}
\newcommand*\caption@resetstyle{%
  \caption@setup{%
    box=none,boxcolor=white,parbox=parbox,%
    format=plain,labelformat=default,labelsep=colon,textformat=simple,%
    justification=justified,font=,size=,labelfont=,textfont=,%
    margin=0pt,minmargin=0,maxmargin=0,%
    indent=0pt,parindent=0pt,hangindent=0pt,%
    slc,rule,strut}%
  \caption@clearsetup{singleline}}
%    \end{macrocode}
% \end{macro}
%
% \changes{v1.0c}{2005/02/12}{\opt{indent=0pt} added to caption style \opt{default}}
% \changes{v1.1}{2007/02/04}{Caption style `default' renamed to `base', and a new `default' added}
% \changes{v1.1}{2007/03/31}{\opt{format=plain} added to caption style \opt{default}}
% \changes{v1.1c}{2007/10/14}{\opt{format=plain} removed from caption style \opt{default}}
% \changes{v1.5}{2012/03/15}{\opt{box=default} added to caption style \opt{default}}
% Currently there are two pre-defined styles, called `base' \& `default'.
% The first one is a perfect match to the behavior of |\@makecaption| offered
% by the standard \LaTeX\ document classes (and was called `default' in
% \thispackage\ \version{1.0}), the second one matches the document
% class actually used.
%    \begin{macrocode}
\DeclareCaptionStyle{base}[indent=0pt,justification=centering]{}
\DeclareCaptionStyle{default}[indent=0pt,justification=centering]{%
  box=default,format=default,labelsep=default,textformat=default,%
  justification=default,font=default,labelfont=default,textfont=default}
%    \end{macrocode}
%
% \changes{v1.2b}{2008/05/06}{Option \opt{slc=} added}
%    \begin{macrocode}
\DeclareCaptionOption{singlelinecheck}[1]{\caption@set@bool\caption@ifslc{#1}}
\DeclareCaptionOption{slc}[1]{\KV@caption@singlelinecheck{#1}}
%    \end{macrocode}
%
% \section{Boxes}
%
% \begin{macro}{\DeclareCaptionBox}
% \changes{v1.5}{2012/03/15}{This macro added}
%  |\DeclareCaptionBox|\marg{name}\marg{code with \#1 and \#2}
%    \begin{macrocode}
\newcommand*\DeclareCaptionBox[2]{%
  \global\long\@namedef{caption@box@#1}##1##2{#2}}
\@onlypreamble\DeclareCaptionBox
%    \end{macrocode}
% \end{macro}
%
% \changes{v1.5}{2012/03/15}{Option \opt{box=} added}
% \changes{v1.6}{2013/05/01}{Option \opt{parbox=} added}
%    \begin{macrocode}
\DeclareCaptionOption{box}{\caption@setbox{#1}}
\DeclareCaptionOption{parbox}{\caption@set@box\caption@parbox{#1}}
%    \end{macrocode}
%
% \begin{macro}{\caption@setbox}
%  |\caption@setbox|\marg{name}\par
%  Selecting a caption box simply means saving the code (in |\caption@box|).
%    \begin{macrocode}
\newcommand*\caption@setbox{%
  \caption@set@box\caption@box}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@set@box[2]{%
  \@ifundefined{caption@box@#2}%
    {\caption@Error{Undefined box `#2'}}%
    {\expandafter\let\expandafter#1\csname caption@box@#2\endcsname}}
%    \end{macrocode}
% \end{macro}
%
% There are four pre-defined boxes, called `empty', `none',
% `parbox', and `colorbox'.
% \changes{v1.0i}{2006/05/13}{We define \cs{captionbox} instead of
%        \cs{caption@start/endbox}}
% \changes{v1.0l}{2006/03/09}{Bugfix 07-03-09: \cs{captionbox} changed from
%        \cs{parbox-t} to \cs{parbox-b}}
% \changes{v1.2}{2007/11/11}{\cs{captionbox} renamed to \cs{caption@parbox}}
% \changes{v1.5}{2012/03/15}{\cs{caption@parbox} adapted to \cs{DeclareCaptionBox}}
% \changes{v1.6}{2013/05/02}{Option \opt{boxsep=} added}
%    \begin{macrocode}
\DeclareCaptionBox{empty}{}
\DeclareCaptionBox{none}{#2}
\DeclareCaptionBox{parbox}{\parbox[b]{#1}{#2}}
%\DeclareCaptionBox{colorbox}{%
%  \colorbox{\caption@boxcolor}{\caption@box@parbox{\dimexpr #1-2\fboxsep}{#2}}}
\DeclareCaptionBox{colorbox}{\colorbox{\caption@boxcolor}{%
  \setlength\caption@tempdima{#1}%
  \addtolength\caption@tempdima{-2\fboxsep}%
  \linewidth\caption@tempdima
  \hsize\caption@tempdima
  #2}}
\DeclareCaptionOption{boxcolor}{\def\caption@boxcolor{#1}}
\DeclareCaptionOption{boxsep}{\setlength\fboxsep{#1}}
%    \end{macrocode}
%
% `default' usually maps to `none`.
%    \begin{macrocode}
\def\caption@box@default{\caption@box@none}
%    \end{macrocode}
%
% \section{Formats}
%
% \begin{macro}{\DeclareCaptionFormat}
% \changes{v1.0a}{2004/01/17}{Pass through argument \#3 so extra spaces
%        between arguments do make any harm}
% \changes{v1.0c}{2005/02/09}{Starred variant added}
% \changes{v1.1c}{2007/10/15}{Optional argument added}
%  |\DeclareCaptionFormat|\marg{name}\marg{code with \#1, \#2, and \#3}\\
%  |\DeclareCaptionFormat*|\marg{name}\marg{code with \#1, \#2, and \#3}\par
%  The starred form causes the code being typeset in vertical (instead of
%  horizontal) mode, but does not support the |indention=| option.
%    \begin{macrocode}
\newcommand*\DeclareCaptionFormat{%
  \caption@teststar\caption@declareformat\@gobble\@firstofone}
\@onlypreamble\DeclareCaptionFormat
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@declareformat[2]{%
  \@dblarg{\caption@@declareformat#1{#2}}}
\@onlypreamble\caption@declareformat
%    \end{macrocode}
%    \begin{macrocode}
\long\def\caption@@declareformat#1#2[#3]#4{%
  \global\expandafter\let\csname caption@ifh@#2\endcsname#1%
  \global\long\@namedef{caption@slfmt@#2}##1##2##3{#3}%
  \global\long\@namedef{caption@fmt@#2}##1##2##3{#4}}
\@onlypreamble\caption@@declareformat
%    \end{macrocode}
% \end{macro}
%
%    \begin{macrocode}
\DeclareCaptionOption{format}{\caption@setformat{#1}}
%    \end{macrocode}
%
% \begin{macro}{\caption@setformat}
%  |\caption@setformat|\marg{name}\par
%  Selecting a caption format simply means saving the code (in |\caption@fmt|)
%  and if the code should be used in horizontal or vertical mode (|\caption@ifh|).
%    \begin{macrocode}
\newcommand*\caption@setformat[1]{%
  \@ifundefined{caption@fmt@#1}%
    {\caption@Error{Undefined format `#1'}}%
    {\expandafter\let\expandafter\caption@ifh\csname caption@ifh@#1\endcsname
     \expandafter\let\expandafter\caption@slfmt\csname caption@slfmt@#1\endcsname
     \expandafter\let\expandafter\caption@fmt\csname caption@fmt@#1\endcsname}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\DeclareCaptionDefaultFormat}
% \changes{v1.2a}{2008/01/31}{This macro added}
%    \begin{macrocode}
\newcommand*\DeclareCaptionDefaultFormat[1]{%
  \expandafter\def\expandafter\caption@fmt@default\expandafter
    {\csname caption@fmt@#1\endcsname}%
  \expandafter\def\expandafter\caption@slfmt@default\expandafter
    {\csname caption@slfmt@#1\endcsname}%
  \expandafter\def\expandafter\caption@ifh@default\expandafter
    {\csname caption@ifh@#1\endcsname}}
\@onlypreamble\DeclareCaptionDefaultFormat
%    \end{macrocode}
% \end{macro}
%
% \changes{v1.0a}{2004/01/23}{%
%         Caption format \opt{default} renamed to \opt{normal}}
% \changes{v1.0e}{2005/05/12}{%
%         Caption format \opt{normal} renamed to \opt{@normal}}
% \changes{v1.0f}{2005/08/25}{%
%         Caption format \opt{@normal} renamed to \opt{plain} and documented}
% \changes{v1.1c}{2007/10/14}{%
%         Single-line variant of caption format \opt{hang} added}
% There are two pre-defined formats, called `plain' and `hang'.
%    \begin{macrocode}
\DeclareCaptionFormat{plain}{#1#2#3\par}
%    \end{macrocode}
%    \begin{macrocode}
\DeclareCaptionFormat{hang}[#1#2#3\par]{%
  \caption@ifin@list\caption@lsepcrlist\caption@lsepname
    {\caption@Error{%
       The option `labelsep=\caption@lsepname' does not work\MessageBreak
       with `format=hang'}}%
    {\@hangfrom{#1#2}%
     \advance\caption@parindent\hangindent
     \advance\caption@hangindent\hangindent
     \caption@@par#3\par}}
%    \end{macrocode}
%
% \changes{v1.0a}{2004/01/23}{Caption format \opt{default} linked to \opt{plain}}
% \changes{v1.0d}{2005/04/28}{Bugfix 05-04-28: Missing \cs{caption@ifh@default} added}
% `default' usually maps to `plain'.
%    \begin{macrocode}
\DeclareCaptionDefaultFormat{plain}
%    \end{macrocode}
%
% \section{Label formats}
%
% \begin{macro}{\DeclareCaptionLabelFormat}
% \changes{v1.0a}{2004/01/17}{%
%         Pass through argument \#2 so extra spaces between arguments do make any harm}
%  |\DeclareCaptionLabelFormat|\marg{name}\marg{code with \#1 and \#2}
%    \begin{macrocode}
\newcommand*\DeclareCaptionLabelFormat[2]{%
  \global\@namedef{caption@lfmt@#1}##1##2{#2}}
\@onlypreamble\DeclareCaptionLabelFormat
%    \end{macrocode}
% \end{macro}
%
%    \begin{macrocode}
\DeclareCaptionOption{labelformat}{\caption@setlabelformat{#1}}
%    \end{macrocode}
%
% \begin{macro}{\caption@setlabelformat}
%  |\caption@setlabelformat|\marg{name}\par
%  Selecting a caption label format simply means saving the code (in |\caption@lfmt|).
%    \begin{macrocode}
\newcommand*\caption@setlabelformat[1]{%
  \@ifundefined{caption@lfmt@#1}%
    {\caption@Error{Undefined label format `#1'}}%
    {\expandafter\let\expandafter\caption@lfmt\csname caption@lfmt@#1\endcsname}}
%    \end{macrocode}
% \end{macro}
%
% \changes{v1.2}{2007/12/16}{Caption label format \opt{brace} added}
% \changes{v1.7}{2015/09/16}{Caption label format \opt{autodot} added}
% \changes{v1.7}{2016/05/22}{Caption label format \opt{autodot} fixed}
% \changes{v1.8}{2016/05/22}{Caption label format \opt{unnumbered} added}
% There are six pre-defined label formats, called `empty', `simple',
% `parens', `brace', `autodot', and `unnumbered'.
%    \begin{macrocode}
\DeclareCaptionLabelFormat{empty}{}
\DeclareCaptionLabelFormat{simple}{\bothIfFirst{#1}{\nobreakspace}#2}
\DeclareCaptionLabelFormat{parens}{\bothIfFirst{#1}{\nobreakspace}(#2)}
\DeclareCaptionLabelFormat{brace}{\bothIfFirst{#1}{\nobreakspace}#2)}
\DeclareCaptionLabelFormat{autodot}{\bothIfFirst{#1}{\nobreakspace}#2\autodot}
\DeclareCaptionLabelFormat{unnumbered}{#1}
%    \end{macrocode}
%
% `default' usually maps to `simple'.
%    \begin{macrocode}
\def\caption@lfmt@default{\caption@lfmt@simple}
%    \end{macrocode}
%
% \section{Label separators}
%
% \begin{macro}{\DeclareCaptionLabelSeparator}
% \changes{v1.0a}{2004/01/17}{Pass through argument \#2 so extra spaces
%         between arguments do make any harm}
% \changes{v1.0f}{2005/08/25}{Starred variant added}
% \changes{v1.1}{2007/07/13}{Test for CR added}
% \changes{v1.3}{2011/08/06}{Test for CR revised}
%  |\DeclareCaptionLabelSeparator|\marg{name}\marg{code}\\
%  |\DeclareCaptionLabelSeparator*|\marg{name}\marg{code}\par
%  The starred form causes the label separator to be typeset \emph{without} using |\captionlabelfont|.
%    \begin{macrocode}
\newcommand\DeclareCaptionLabelSeparator{%
  \caption@teststar\caption@declarelabelseparator\@gobble\@firstofone}
\@onlypreamble\DeclareCaptionLabelSeparator
%    \end{macrocode}
%    \begin{macrocode}
\newcommand\caption@declarelabelseparator[3]{%
  \global\@namedef{caption@iflf@#2}{#1}%
  \global\long\@namedef{caption@lsep@#2}{#3}%
  \caption@@declarelabelseparator{#2}#3\\\@nil}
\@onlypreamble\caption@declarelabelseparator
%    \end{macrocode}
%    \begin{macrocode}
\long\def\caption@@declarelabelseparator#1#2\\#3\@nil{%
  \def\@tempa{#3}\ifx\@tempa\@empty \else
    \caption@g@addto@list\caption@lsepcrlist{#1}%
  \fi}
\@onlypreamble\caption@@declarelabelseparator
%    \end{macrocode}
% \end{macro}
%
%    \begin{macrocode}
\DeclareCaptionOption{labelsep}{\caption@setlabelseparator{#1}}
\DeclareCaptionOption{labelseparator}{\caption@setlabelseparator{#1}}
%    \end{macrocode}
%
% \begin{macro}{\caption@setlabelseparator}
%  |\caption@setlabelseparator|\marg{name}\par
%  Selecting a caption label separator simply means saving the code (in |\caption@lsep|).
%    \begin{macrocode}
\newcommand*\caption@setlabelseparator[1]{%
  \@ifundefined{caption@lsep@#1}%
    {\caption@Error{Undefined label separator `#1'}}%
    {\edef\caption@lsepname{#1}%
     \expandafter\let\expandafter\caption@iflf\csname caption@iflf@#1\endcsname
     \expandafter\let\expandafter\caption@lsep\csname caption@lsep@#1\endcsname}}
%    \end{macrocode}
% \end{macro}
%
% \changes{v1.0e}{2005/06/11}{Bugfix 05-03-23: Caption label separator
%         \opt{newline} implementation changed from \cs{newline} to \cs{\textbackslash}}
% \changes{v1.0f}{2005/08/24}{Caption label separator \opt{endash} added}
% There are seven pre-defined label separators, called `none', `colon', `period', `space',
% `quad', `newline', and `endash'.
%    \begin{macrocode}
\DeclareCaptionLabelSeparator{none}{}
\DeclareCaptionLabelSeparator{colon}{: }
\DeclareCaptionLabelSeparator{period}{. }
\DeclareCaptionLabelSeparator{space}{ }
\DeclareCaptionLabelSeparator*{quad}{\quad}
\DeclareCaptionLabelSeparator*{newline}{\captionnewline}
\DeclareCaptionLabelSeparator*{endash}{\space\textendash\space}
%    \end{macrocode}
%
% \begin{macro}{\captionnewline}
% \changes{v1.12}{2020/05/30}{This macro added}
% Will be used in the caption label separator |new|\-|line|,
% and re-defined for |long|\-|table| environments.
%    \begin{macrocode}
\newcommand*\captionnewline{\\}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@setdefaultlabelsep}
% \changes{v1.2d}{2009/03/29}{This macro added}
%    \begin{macrocode}
\newcommand*\caption@setdefaultlabelsep[1]{%
  \ifx\caption@lsep\caption@lsep@default
    \caption@set@default@labelsep{#1}%
    \caption@setlabelseparator{default}%
  \else
    \caption@set@default@labelsep{#1}%
  \fi}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@set@default@labelsep[1]{%
  \def\caption@lsep@default{\@nameuse{caption@lsep@#1}}%
  \def\caption@iflf@default{\@nameuse{caption@iflf@#1}}}
%    \end{macrocode}
% \end{macro}
%
% `default' usually maps to `colon'.
%    \begin{macrocode}
\caption@set@default@labelsep{colon}
%    \end{macrocode}
%
% \section{Text formats}
%
% \begin{macro}{\DeclareCaptionTextFormat}
% \changes{v1.0j}{2007/02/18}{This macro added}
%  |\DeclareCaptionTextFormat|\marg{name}\marg{code with \#1}
%    \begin{macrocode}
\newcommand*\DeclareCaptionTextFormat[2]{%
  \global\long\@namedef{caption@tfmt@#1}##1{#2}}
\@onlypreamble\DeclareCaptionTextFormat
%    \end{macrocode}
% \end{macro}
%
% \changes{v1.0c}{2005/02/12}{Option \opt{strut=} added}
%    \begin{macrocode}
\DeclareCaptionOption{textformat}{\caption@settextformat{#1}}
\DeclareCaptionOption{strut}[1]{\caption@set@bool\caption@ifstrut{#1}}
%    \end{macrocode}
%
% \begin{macro}{\caption@settextformat}
% \changes{v1.0j}{2007/02/18}{This macro added}
%  |\caption@settextformat|\marg{name}\par
%  Selecting a caption text format simply means saving the code (in |\caption@tfmt|).
%    \begin{macrocode}
\newcommand*\caption@settextformat[1]{%
  \@ifundefined{caption@tfmt@#1}%
    {\caption@Error{Undefined text format `#1'}}%
    {\expandafter\let\expandafter\caption@tfmt\csname caption@tfmt@#1\endcsname}}
%    \end{macrocode}
% \end{macro}
%
% There are three pre-defined text formats, called `empty', `simple' and `period'.
% \changes{v1.4}{2011/10/05}{Pre-defined text format `empty' added}
% \changes{v1.7}{2015/09/16}{The text format `empty' now takes care of the \cs{label}}
%    \begin{macrocode}
\DeclareCaptionTextFormat{empty}{%
  \caption@get@label#1\caption@makeanchor{}\@nil
  \caption@thelabel
  \global\let\caption@thelabel\relax}
\long\def\caption@get@label#1\caption@makeanchor#2#3\@nil{%
  \def\caption@tempa{#2}%
  \ifx\caption@tempa\@empty
    \caption@getlabel#1\label{}\@nil
  \else
    \caption@getlabel#2\label{}\@nil
  \fi}
%    \end{macrocode}
%    \begin{macrocode}
\DeclareCaptionTextFormat{simple}{#1}
\DeclareCaptionTextFormat{period}{#1.}
%    \end{macrocode}
%
% `default' usually maps to `simple'.
%    \begin{macrocode}
\def\caption@tfmt@default{\caption@tfmt@simple}
%    \end{macrocode}
%
% \begin{macro}{\caption@getlabel}
% \changes{v1.0}{2011/09/03}{\cs{label} can have optional arguments now}
% \changes{v1.7}{2015/09/16}{Moved from \package{bicaption} package to \package{caption3}}
% \changes{v1.8d}{2019/09/01}{Bugfix: Global definition of \cs{caption@thelabel} added}
% Gets the label command out of the (first) caption text and stores it to |\caption@thelabel|.
%    \begin{macrocode}
\long\def\caption@getlabel#1\label#2#3\@nil{%
  \def\@tempa{#2}%
  \ifx\@tempa\@empty
    \let\caption@thelabel\relax
  \else
    \def\@tempb{*}%
    \ifx\@tempa\@tempb
      \def\caption@thelabel{\label*}%
      \caption@@getlabel#3\@nil
    \else
      \def\caption@thelabel{\label}%
      \caption@@getlabel{#2}#3\@nil
    \fi
  \fi}
%    \end{macrocode}
%    \begin{macrocode}
\long\def\caption@@getlabel#1#2\@nil{%
  \def\@tempa{#1}%
  \def\@tempb{[}%
  \ifx\@tempa\@tempb
    \caption@@@getlabel#1#2\@nil
  \else
    \l@addto@macro\caption@thelabel{{#1}}%
  \fi}
%    \end{macrocode}
%    \begin{macrocode}
\long\def\caption@@@getlabel[#1]#2\@nil{%
  \l@addto@macro\caption@thelabel{[{#1}]}%
  \caption@@getlabel#2\@nil}
%    \end{macrocode}
%    \begin{macrocode}
\let\caption@thelabel\relax
%    \end{macrocode}
% \end{macro}
%
% \section{Fonts}
%
% \begin{macro}{\DeclareCaptionFont}
% \changes{v1.0a}{2004/01/22}{Bugfix: Multi token arguments are allowed now}
% \changes{v1.1}{2007/05/07}{Internal: Uses \cs{caption@fnt} instead of \cs{caption@temp} now}
% \changes{v1.8h}{2020/01/03}{Check for \package{ragged2e} package related options added}
% \changes{v1.10}{2020/05/10}{Optional argument \opt{package} added}
%  |\DeclareCaptionFont|\oarg{package}\marg{name}\marg{code}
%    \begin{macrocode}
\newcommand*\DeclareCaptionFont{%
  \@ifnextchar[%]
    \caption@declare@font
    \caption@declarefont}
\@onlypreamble\DeclareCaptionFont
%    \end{macrocode}
%    \begin{macrocode}
\def\caption@declare@font[#1]#2{%
  \global\@namedef{caption@fnt@#2@package}{#1}%
  \caption@@declarefont{#2}}
\@onlypreamble\caption@declare@font
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@declarefont[1]{%
  \global\@nameundef{caption@fnt@#1@package}%
  \caption@@declarefont{#1}}
\@onlypreamble\caption@declarefont
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@@declarefont[2]{%
  \define@key{caption@fnt}{#1}[]{\caption@addto@fnt{#1}{#2}}%
  \caption@@@declarefont{#1}{#2}}
\@onlypreamble\caption@@declarefont
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@@@declarefont[2]{}% will be used by \DeclareCaptionJustification
\@onlypreamble\caption@@@declarefont
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@addto@fnt[2]{%
  \expandafter\let\expandafter\caption@package\csname caption@fnt@#1@package\endcsname
  \caption@ifdefined\caption@package
    {\caption@requirepackage\caption@package{#1}}% load package, if necessary
    {}%
  \l@addto@macro\caption@fnt{#2}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\DeclareCaptionDefaultFont}
% \changes{v1.1}{2006/05/14}{This macro added}
% \changes{v1.2a}{2008/01/31}{Renamed from \cs{DeclareDefaultCaptionFont} to \cs{DeclareCaptionDefaultFont}}
%  |\DeclareCaptionDefaultFont|\marg{name}\marg{code}
%    \begin{macrocode}
\newcommand*\DeclareCaptionDefaultFont[2]{%
  \global\@namedef{caption#1@default}{#2}}
\@onlypreamble\DeclareCaptionDefaultFont
%    \end{macrocode}
% \end{macro}
%
%    \begin{macrocode}
\DeclareCaptionOption{font}{\caption@setfont{font}{#1}}
\DeclareCaptionOption{font+}{\caption@addtofont{font}{#1}}
\DeclareCaptionDefaultFont{font}{}
%    \end{macrocode}
%    \begin{macrocode}
\DeclareCaptionOption{labelfont}{\caption@setfont{labelfont}{#1}}
\DeclareCaptionOption{labelfont+}{\caption@addtofont{labelfont}{#1}}
\DeclareCaptionDefaultFont{labelfont}{}
%    \end{macrocode}
%    \begin{macrocode}
\DeclareCaptionOption{textfont}{\caption@setfont{textfont}{#1}}
\DeclareCaptionOption{textfont+}{\caption@addtofont{textfont}{#1}}
\DeclareCaptionDefaultFont{textfont}{}
%    \end{macrocode}
%
% \begin{macro}{\caption@setfont}
% \changes{v1.0j}{2007/01/30}{Usage of \cs{caption@setkeys} with optional argument}
% \changes{v1.1}{2006/05/14}{Support of \cs{DeclareDefaultCaptionFont} added}
%  |\caption@setfont|\marg{name}\marg{keyval-list of names}\par
%  Selecting a caption font means saving all the code snippets
%  in |\caption|\meta{name}.
%    \begin{macrocode}
\newcommand*\caption@setfont[1]{%
  \expandafter\let\csname caption#1\endcsname\@empty
  \caption@addtofont{#1}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@addtofont}
% \changes{v1.2}{2007/11/17}{This macro added}
%  |\caption@addtofont|\marg{name}\marg{keyval-list of names}\par
%  Like |\caption@setfont|, but adds the code snippets to |\caption|\meta{name}.\par
%  Because we use |\setkeys| recursive here we need to do this inside an
%  extra group.
%    \begin{macrocode}
\newcommand*\caption@addtofont[2]{%
  \begingroup
    \expandafter\let\expandafter\caption@fnt\csname caption#1\endcsname
    \define@key{caption@fnt}{default}[]{%
      \l@addto@macro\caption@fnt{\csname caption#1@default\endcsname}}%
    \caption@setkeys[caption]{caption@fnt}{#2}%
    \global\let\caption@tempa\caption@fnt
  \endgroup
  \expandafter\let\csname caption#1\endcsname\caption@tempa}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@font}
% \changes{v1.1}{2007/05/07}{This macro added}
%  |\caption@font|\marg{keyval-list of names}\\
%  |\caption@font*|\marg{keyval-code}\par
%  Sets the given font, e.g.~|\caption@font{small,it}|
%  is equivalent to |\small\itshape|.
%    \begin{macrocode}
\newcommand*\caption@font{%
  \caption@teststar\caption@@font\@firstofone
          {\caption@setkeys[caption]{caption@fnt}}}
\newcommand*\caption@@font[2]{%
  \begingroup
  \def\caption@fnt{\endgroup}%
  #1{#2}%
  \caption@fnt}
%    \end{macrocode}
% \end{macro}
%
% These are the pre-defined font code snippets.
%
% \changes{v1.1}{2007/05/07}{Color font support added}
%    \begin{macrocode}
\DeclareCaptionFont{normalcolor}{\normalcolor}
\DeclareCaptionFont{color}{\color{#1}}
%    \end{macrocode}
%
%    \begin{macrocode}
\DeclareCaptionFont{normalfont}{\normalfont}
\DeclareCaptionFont{up}{\upshape}
\DeclareCaptionFont{it}{\itshape}
\DeclareCaptionFont{sl}{\slshape}
\DeclareCaptionFont{sc}{\scshape}
\DeclareCaptionFont{md}{\mdseries}
\DeclareCaptionFont{bf}{\bfseries}
\DeclareCaptionFont{rm}{\rmfamily}
\DeclareCaptionFont{sf}{\sffamily}
\DeclareCaptionFont{tt}{\ttfamily}
%    \end{macrocode}
%
% \changes{v1.7}{2018/05/01}{Missing font sizes \texttt{tiny}, \texttt{LARGE}, \texttt{huge}, and \texttt{Huge} added}
%    \begin{macrocode}
\DeclareCaptionFont{tiny}{\tiny}
\DeclareCaptionFont{scriptsize}{\scriptsize}
\DeclareCaptionFont{footnotesize}{\footnotesize}
\DeclareCaptionFont{small}{\small}
\DeclareCaptionFont{normalsize}{\normalsize}
\DeclareCaptionFont{large}{\large}
\DeclareCaptionFont{Large}{\Large}
\DeclareCaptionFont{LARGE}{\LARGE}
\DeclareCaptionFont{huge}{\huge}
\DeclareCaptionFont{Huge}{\Huge}
%    \end{macrocode}
%
% \changes{v1.8}{2018/05/01}{Font size \texttt{smaller} added}
%    \begin{macrocode}
\newcommand\caption@smaller{%
  \ifx\@currsize\tiny
    \relax
  \else\ifx\@currsize\scriptsize
    \tiny
  \else\ifx\@currsize\footnotesize
    \scriptsize
  \else\ifx\@currsize\small
    \footnotesize
  \else\ifx\@currsize\normalsize
    \small
  \else\ifx\@currsize\large
    \normalsize
  \else\ifx\@currsize\Large
    \large
  \else\ifx\@currsize\LARGE
    \Large
  \else\ifx\@currsize\huge
    \LARGE
  \else\ifx\@currsize\Huge
    \huge
  \else
    \caption@Warning{%
      Cannot determine current font size.\MessageBreak
      Try setting it with `size=' explicitly}%
  \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi}
\DeclareCaptionFont{smaller}{\caption@smaller}
%    \end{macrocode}
%
% \changes{v1.8}{2018/05/02}{Font size \texttt{larger} added}
%    \begin{macrocode}
\newcommand\caption@larger{%
  \ifx\@currsize\tiny
    \scriptsize
  \else\ifx\@currsize\scriptsize
    \footnotesize
  \else\ifx\@currsize\footnotesize
    \small
  \else\ifx\@currsize\small
    \normalsize
  \else\ifx\@currsize\normalsize
    \large
  \else\ifx\@currsize\large
    \Large
  \else\ifx\@currsize\Large
    \LARGE
  \else\ifx\@currsize\LARGE
    \huge
  \else\ifx\@currsize\huge
    \Huge
  \else\ifx\@currsize\Huge
    \relax
  \else
    \caption@Warning{%
      Cannot determine current font size.\MessageBreak
      Try setting it with `size=' explicitly}%
  \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi}
\DeclareCaptionFont{larger}{\caption@larger}
%    \end{macrocode}
%
%    \begin{macrocode}
\DeclareCaptionFont{singlespacing}{}
%    \end{macrocode}
%
%    \begin{macrocode}
%\DeclareCaptionFont{normal}{%
%  \caption@font{normalcolor,normalfont,normalsize,singlespacing}
\DeclareCaptionFont{normal}{%
  \caption@font*{%
    \KV@caption@fnt@normalcolor\@unused
    \KV@caption@fnt@normalfont\@unused
    \KV@caption@fnt@normalsize\@unused
    \KV@caption@fnt@singlespacing\@unused}}
%    \end{macrocode}
%
% \changes{v1.0a}{2004/01/23}{Option \opt{size=} now sets \cs{captionsize} instead of \cs{captionfont}}
% The old versions \version{1.x} of \thispackage\ offered this
% command to setup the font size used for captions. We still do
% so old documents will work fine.
%    \begin{macrocode}
\DeclareCaptionOption{size}{\caption@setfont{size}{#1}}
\DeclareCaptionDefaultFont{size}{}
%    \end{macrocode}
%
% \section{Justifications}
%
% \begin{macro}{\DeclareCaptionJustification}
% \changes{v1.0a}{2004/01/17}{Pass through argument \#2 so extra spaces
%                             between arguments do make any harm}
% \changes{v1.1}{2007/07/03}{Mapped to \cs{DeclareCaptionFont}}
%  |\DeclareCaptionJustification|\marg{name}\marg{code}
%    \begin{macrocode}
\newcommand*\DeclareCaptionJustification{%
  \def\caption@@@declarefont##1##2{%
    \global\@namedef{caption@hj@##1}{##2}% for compatibility to v1.0, needed by floatrow package
    \let\caption@@@declarefont\@gobbletwo}%
  \DeclareCaptionFont}
\@onlypreamble\DeclareCaptionJustification
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\DeclareCaptionDefaultJustification}
% \changes{v1.1}{2007/07/03}{This macro added}
% \changes{v1.2a}{2008/01/31}{Renamed from \cs{DeclareDefaultCaptionJustification} to \cs{DeclareCaptionDefaultJustification}}
%  |\DeclareCaptionDefaultJustification|\marg{code}
%    \begin{macrocode}
\newcommand*\DeclareCaptionDefaultJustification[1]{%
  \global\@namedef{caption@hj@default}{#1}% for compatibility to v1.0
  \DeclareCaptionDefaultFont{@hj}{#1}}
\@onlypreamble\DeclareCaptionDefaultJustification
%    \end{macrocode}
% \end{macro}
%
%    \begin{macrocode}
\DeclareCaptionOption{justification}{\caption@setjustification{#1}}
\DeclareCaptionDefaultJustification{}
%    \end{macrocode}
%
% \begin{macro}{\caption@setjustification}
% \changes{v1.1}{2007/07/03}{Mapped to \cs{caption@setfont}}
%  |\caption@setjustification|\marg{name}\par
%  Selecting a caption justification simply means saving the code (in |\caption@hj|).
%    \begin{macrocode}
\newcommand*\caption@setjustification{\caption@setfont{@hj}}
%    \end{macrocode}
% \end{macro}
%
% These are the pre-defined justification code snippets.
%    \begin{macrocode}
\DeclareCaptionJustification{justified}{}
\DeclareCaptionJustification{centering}{\centering}
\DeclareCaptionJustification{centerfirst}{\centerfirst}
\DeclareCaptionJustification{centerlast}{\centerlast}
\DeclareCaptionJustification{raggedleft}{\raggedleft}
\DeclareCaptionJustification{raggedright}{\raggedright}
%    \end{macrocode}
%
% \begin{macro}{\centerfirst}
% \changes{v1.0j}{2007/01/21}{Bugfix: Usage of \cs{@centercr} added (Thanks to Olga!)}
% \changes{v1.0j}{2007/01/21}{This macro renamed from \cs{caption@centerfirst} to \cs{centerfirst}}
%  Please blame Frank Mittelbach for the code of |\centerfirst| |:-)|
%    \begin{macrocode}
\providecommand\centerfirst{%
  \let\\\@centercr
  \edef\caption@normaladjust{%
    \leftskip\the\leftskip
    \rightskip\the\rightskip
    \parfillskip\the\parfillskip\relax}%
  \leftskip\z@\@plus -1fil%
  \rightskip\z@\@plus 1fil%
  \parfillskip\z@skip
  \noindent\hskip\z@\@plus 2fil%
  \@setpar{\@@par\@restorepar\caption@normaladjust}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\centerlast}
% \changes{v1.0j}{2007/01/21}{Bugfix: Usage of \cs{@centercr} added (Thanks to Olga!)}
% \changes{v1.0j}{2007/01/21}{This macro renamed from \cs{caption@centerlast} to \cs{centerlast}}
%  This is based on code from Anne Br\"uggemann-Klein\cite{Anne}
%    \begin{macrocode}
\providecommand\centerlast{%
  \let\\\@centercr
  \leftskip\z@\@plus 1fil%
  \rightskip\z@\@plus -1fil%
  \parfillskip\z@\@plus 2fil\relax}
%    \end{macrocode}
% \end{macro}
%
% \section{Vertical spaces before and after captions}
%
% \begin{macro}{\abovecaptionskip}
% \begin{macro}{\belowcaptionskip}
%  Usually these skips are defined within the document class, but some
%  document classes don't do so.
%    \begin{macrocode}
\caption@ifundefined\abovecaptionskip{%
  \newlength\abovecaptionskip\setlength\abovecaptionskip{10\p@}}{}
\caption@ifundefined\belowcaptionskip{%
  \newlength\belowcaptionskip\setlength\belowcaptionskip{0\p@}}{}
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \changes{v1.0c}{2005/02/12}{Option \opt{skip=} added}
%    \begin{macrocode}
\DeclareCaptionOption{aboveskip}{\setlength\abovecaptionskip{#1}}
\DeclareCaptionOption{belowskip}{\setlength\belowcaptionskip{#1}}
\DeclareCaptionOption{skip}{\setlength\abovecaptionskip{#1}}
%    \end{macrocode}
%
% \begin{macro}{\caption@rule}
% \changes{v1.2b}{2008/05/06}{This macro added}
%  |\caption@rule|\par
%  Draws an invisible rule to adjust the ``skip'' setting.
%    \begin{macrocode}
\newcommand*\caption@rule{\caption@ifrule\caption@hrule\relax}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@hrule{\hrule\@height\z@}
%    \end{macrocode}
% \end{macro}
%
% \changes{v1.2b}{2008/05/06}{Option \opt{rule=} added}
%    \begin{macrocode}
\DeclareCaptionOption{rule}[1]{\caption@set@bool\caption@ifrule{#1}}
%    \end{macrocode}
%
% \section{Positioning}
%
% These macros handle the right position of the caption.
% Note that the position is actually \emph{not} controlled by the
% \package{caption3} kernel options, but by the user (or a specific package
% like the \package{float} package) instead.
% The user can put the |\caption| command wherever he likes! So this stuff
% is only to give us a \emph{hint} where to put the right skips, the user
% usually has to take care for himself that this hint actually matches the
% right position.
%
%    \begin{macrocode}
\DeclareCaptionOption{position}{\caption@setposition{#1}}
%    \end{macrocode}
% \changes{v1.0a}{2004/01/09}{Options \opt{figureposition} and \opt{tableposition} added}
%    \begin{macrocode}
\DeclareCaptionOption{figureposition}{%
  \captionsetup*[figure]{position=#1}}
\@onlypreamble@key{caption}{figureposition}
%    \end{macrocode}
%    \begin{macrocode}
\DeclareCaptionOption{tableposition}{%
  \captionsetup*[table]{position=#1}}
\@onlypreamble@key{caption}{tableposition}
%    \end{macrocode}
%
% \begin{macro}{\caption@setposition}
% \changes{v1.0a}{2004/01/22}{Now the positions \opt{t}, \opt{above}, \opt{b},
%                             \opt{below}, and \opt{a} are allowed, too}
% \changes{v1.0c}{2004/08/10}{Usage of \cs{caption@defaultpos} added}
%  |\caption@setposition|\marg{position}\par
%  Selecting the caption position means that we put |\caption@position| to
%  the right value. \emph{Please do \textbf{not} use the internal macro
%  \cs{caption@position} in your own package or document, but use the wrapper
%  macro \cs{caption@iftop} instead.}
%    \begin{macrocode}
\newcommand*\caption@setposition[1]{%
  \caption@ifinlist{#1}{d,default}{%
    \let\caption@position\caption@defaultpos
  }{\caption@ifinlist{#1}{t,top,above}{%
    \let\caption@position\@firstoftwo
  }{\caption@ifinlist{#1}{b,bottom,below}{%
    \let\caption@position\@secondoftwo
  }{\caption@ifinlist{#1}{a,auto}{%
    \let\caption@position\@undefined
  }{%
    \caption@Error{Undefined position `#1'}%
  }}}}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@defaultpos}
% \changes{v1.1}{2007/05/08}{Default position changed from `bottom' to `auto'}
%  The default `position' is `auto', this means that \thispackage\ will try
%  to guess the current position of the caption.
%  (But in many cases, for example in |longtable|s, this is doomed to fail!)\par
%  The setting `bottom' correspondents to the |\@makecaption| implementation
%  in the standard \LaTeX\ document classes, but `auto' should give better
%  results in most cases.
%    \begin{macrocode}
%\caption@setdefaultpos{a}% default = auto
\let\caption@defaultpos\@undefined
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@iftop}
% \changes{v1.0a}{2004/01/23}{Split into \cs{caption@iftop} \& \cs{caption@fixposition}}
% \changes{v1.0c}{2005/02/12}{Adapted to \cs{caption@defaultpos}}
% \changes{v1.1}{2007/05/08}{Position will be fixed to `bottom' if `auto'}
%  |\caption@iftop|\marg{true-code}\marg{false-code}\par
%  (If the |position=| is set to |auto| we assume a |bottom| position here.)
%    \begin{macrocode}
\newcommand*\caption@iftop{%
  \ifx\caption@position\@undefined
    \let\caption@position\@secondoftwo
%   = \caption@setposition b%
  \fi
  \caption@position}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@fixposition}
% \changes{v1.0b}{2004/05/16}{%
%        Split into \cs{caption@fixposition} & \cs{caption@autoposition}}
%  |\caption@fixposition|\par
%  This macro checks if the `position' is set to `auto'.
%  If yes, |\caption@autoposition| will be called to
%  set |\caption@position| to a proper value we can actually use.
%    \begin{macrocode}
\newcommand*\caption@fixposition{%
  \ifx\caption@position\@undefined
    \caption@autoposition
  \fi}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@autoposition}
% \changes{v1.0a}{2004/01/23}{\cs{ifvmode} added}
%  |\caption@autoposition|\par
%  We guess the current position of the caption by checking |\prevdepth|.\par
%  A different solution would be setting the |\spacefactor| to something
%  not much less than 1000 (for example 994) in |\caption@start| and
%  checking this value here by |\ifnum\spacefactor=994|.
%  (It's implemented in the \package{threeparttable}
%   package\cite{threeparttable} this way.)\par
%  Another idea would be checking |\@ifminipage|, but since some packages
%  typeset the caption within a simple |\vbox| this does not seem to be a
%  good one.
%    \begin{macrocode}
\newcommand*\caption@autoposition{%
  \ifvmode
    \edef\caption@tempa{\the\prevdepth}%
    \caption@Debug{\protect\prevdepth=\caption@tempa}%
    \ifdim\prevdepth>-\p@
      \let\caption@position\@secondoftwo
    \else
      \let\caption@position\@firstoftwo
    \fi
%   = \caption@setposition{\ifdim\prevdepth>-\p@ b\else t\fi}%
  \else
    \caption@Debug{no \protect\prevdepth}%
    \let\caption@position\@secondoftwo
%   = \caption@setposition b%
  \fi}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\caption@setautoposition}
% \changes{v1.1}{2007/06/10}{This macro added}
%  |\caption@setautoposition|\marg{position}\par
%  replaces the above algorithm by a different one (or a fixed position setting).
%    \begin{macrocode}
\newcommand*\caption@setautoposition[1]{%
  \def\caption@autoposition{\caption@setposition{#1}}}
%    \end{macrocode}
% \end{macro}
%
% \section{Hooks}
%
% \begin{macro}{\AtBeginCaption}
% \begin{macro}{\AtEndCaption}
%  |\AtBeginCaption| \marg{code}\\
%  |\AtEndCaption| \marg{code}\par
%  These hooks can be used analogous to |\AtBeginDocument| and |\AtEndDocument|.
%    \begin{macrocode}
\newcommand*\caption@beginhook{}
\newcommand*\caption@endhook{}
\newcommand*\AtBeginCaption{\l@addto@macro\caption@beginhook}
\newcommand*\AtEndCaption{\l@addto@macro\caption@endhook}
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \section{Lists}
%
% \changes{v1.0b}{2004/05/16}{Option \opt{listof=} added}
% \changes{v1.2}{2007/11/17}{Option \opt{list=} added}
%    \begin{macrocode}
\DeclareCaptionOption{list}[1]{\caption@setlist{#1}}
\DeclareCaptionOption{listof}[1]{\caption@setlist{#1}}
%    \end{macrocode}
%
% \begin{macro}{\caption@setlist}
% \changes{v1.2a}{2008/03/20}{This macro added}
%  |\caption@setlist|\marg{boolean}
%    \begin{macrocode}
\newcommand*\caption@setlist{\caption@set@bool\caption@iflist}
%    \end{macrocode}
% \end{macro}
%
% \changes{v1.4}{2011/08/30}{Option \opt{listtype=} added}
% \changes{v1.4}{2011/08/30}{Option \opt{listtype+=} added}
%    \begin{macrocode}
\DeclareCaptionOption{listtype}{\caption@setlisttype{#1}}
\DeclareCaptionOption{listtype+}{\caption@setlisttype@ext{#1}}
%    \end{macrocode}
%
% \begin{macro}{\caption@setlisttype}
% \changes{v1.4}{2011/08/30}{This macro added}
%  |\caption@setlisttype|\marg{type}
%    \begin{macrocode}
\newcommand*\caption@setlisttype{%
  \caption@setlisttype@ext{}%
  \caption@@setlisttype\caption@listtype}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@@setlisttype[2]{%
  \edef#1{#2}%
  \ifx#1\@empty \let#1\@undefined \fi}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\caption@setlisttype@ext}
% \changes{v1.4}{2011/08/30}{This macro added}
%  |\caption@setlisttype@ext|\marg{type extension}
%    \begin{macrocode}
\newcommand*\caption@setlisttype@ext{%
  \caption@@setlisttype\caption@listtype@ext}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\DeclareCaptionListFormat}
% \changes{v1.1}{2004/07/15}{This macro added}
% \changes{v1.2}{2007/11/17}{Renamed from \cs{DeclareCaptionListOfFormat} to \cs{DeclareCaptionListFormat}}
%  |\DeclareCaptionListFormat|\marg{name}\marg{code with \#1 and \#2}
%    \begin{macrocode}
\newcommand*\DeclareCaptionListFormat[2]{%
  \global\@namedef{caption@lstfmt@#1}##1##2{#2}}
\@onlypreamble\DeclareCaptionListFormat
%    \end{macrocode}
% \end{macro}
%
% \changes{v1.1}{2007/07/15}{Option \opt{listofformat=} added}
% \changes{v1.2}{2007/11/17}{Option \opt{listofformat=} renamed to \opt{listformat=}}
%    \begin{macrocode}
\DeclareCaptionOption{listformat}{\caption@setlistformat{#1}}
%    \end{macrocode}
%
% \begin{macro}{\caption@setlistformat}
% \changes{v1.1}{2004/07/15}{This macro added}
% \changes{v1.2}{2007/11/17}{Renamed from \cs{caption@setlistofformat} to \cs{caption@setlistformat}}
%  |\caption@setlistformat|\marg{name}\par
%  Selecting a caption list format simply means saving the code (in |\caption@lstfmt|).
%    \begin{macrocode}
\newcommand*\caption@setlistformat[1]{%
  \@ifundefined{caption@lstfmt@#1}%
    {\caption@Error{Undefined list format `#1'}}%
    {\expandafter\let\expandafter\caption@lstfmt
       \csname caption@lstfmt@#1\endcsname}}
%    \end{macrocode}
% \end{macro}
%
% There are five pre-defined list formats, taken from the \package{subfig} package.
%    \begin{macrocode}
\DeclareCaptionListFormat{empty}{}
\DeclareCaptionListFormat{simple}{#1#2}
\DeclareCaptionListFormat{parens}{#1(#2)}
\DeclareCaptionListFormat{subsimple}{#2}
\DeclareCaptionListFormat{subparens}{(#2)}
%    \end{macrocode}
%
% \begin{macro}{\caption@setdefaultlistformat}
% \changes{v1.2d}{2009/03/29}{This macro added}
%    \begin{macrocode}
\newcommand*\caption@setdefaultlistformat[1]{%
  \ifx\caption@lstfmt\caption@lstfmt@default
    \caption@set@default@listformat{#1}%
    \caption@setlistformat{default}%
  \else
    \caption@set@default@listformat{#1}%
  \fi}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@set@default@listformat[1]{%
  \def\caption@lstfmt@default{\@nameuse{caption@lstfmt@#1}}}
%    \end{macrocode}
% \end{macro}
%
% `default' usually maps to `subsimple'.
%    \begin{macrocode}
\caption@set@default@listformat{subsimple}
%    \end{macrocode}
%
% \section{Debug option}
% \changes{v1.0k}{2007/03/04}{Debug option added}
%
%    \begin{macrocode}
\DeclareCaptionOption{debug}[1]{%
  \caption@set@bool\caption@ifdebug{#1}%
  \caption@ifdebug
    {\let\caption@Debug\caption@Info}%
    {\let\caption@Debug\@gobble}}
%    \end{macrocode}
%    \begin{macrocode}
\DeclareOption{debug}{\setkeys{caption}{debug}}
%    \end{macrocode}
%    \begin{macrocode}
\setkeys{caption}{debug=0}
%    \end{macrocode}
%
% \section{Document classes \& Babel support}
%
% \begin{macro}{\caption@ifdocumentclass}
% Boolean switch which is set if the document class could be detected successfully,
% i.e. |\caption@document|\-|class| is set to a proper value.
% (If |\caption@document|\-|class| is already set, this flag will also be set.)
%    \begin{macrocode}
\caption@setbool{documentclass}{1}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@documentclass}
% \changes{v1.8e}{2018/05/11}{This macro added}
% Determine document class used.
% Set |\caption@document|\-|class| by good-guessing, if not already set.
%    \begin{macrocode}
\caption@ifundefined\caption@documentclass{%
%    \end{macrocode}
%    \begin{macrocode}
  \@ifclassloaded{beamer}{%
    \caption@InfoNoLine{beamer document class detected}%
    \def\caption@documentclass{beamer}%
%    \end{macrocode}
%    \begin{macrocode}
  }{\@ifclassloaded{elsarticle}{%
    \caption@InfoNoLine{elsarticle document class detected}%
    \def\caption@documentclass{elsarticle}%
%    \end{macrocode}
%    \begin{macrocode}
  }{\@ifclassloaded{memoir}{%
    \caption@InfoNoLine{memoir document class detected}%
    \def\caption@documentclass{memoir}%
%    \end{macrocode}
%    \begin{macrocode}
  }{\caption@ifdefined\scr@caption{%
    \caption@InfoNoLine{KOMA-Script document class detected}%
    \def\caption@documentclass{koma}%
%    \end{macrocode}
% If |\@captionheadfont| is defined, we assume it's a AMS or SMF document class.
%    \begin{macrocode}
  }{\caption@ifdefined\@captionheadfont{%
    \caption@InfoNoLine{AMS or SMF document class detected}%
    \def\caption@documentclass{ams}%
%    \end{macrocode}
% If |\@CaptionFonts| is defined, we assume it's a NTG Dutch document class.
%    \begin{macrocode}
  }{\caption@ifdefined\CaptionFonts{%
    \caption@InfoNoLine{NTG document class detected}%
    \def\caption@documentclass{ntg}%
%    \end{macrocode}
% If |\cph@font| and |\cpb@font| are defined, we assume it's a NTG Dutch document class.
%    \begin{macrocode}
  }{\caption@ifdefined\cph@font{%
      \caption@ifdefined\cpb@font\@firstoftwo\@secondoftwo
    }{%
      \@secondoftwo
    }{%
    \caption@InfoNoLine{thesis document class detected}%
    \def\caption@documentclass{thesis}%
  }{%
%    \end{macrocode}
% If the definition of |\@makecaption| matches the one from the standard \LaTeX\ document classes
% |article|, |report|, or |book|, we assume it's either one of them or is compatible to them.
%    \begin{macrocode}
    % article|report|book [2005/09/16 v1.4f Standard LaTeX document class]
    \long\def\caption@tempa#1#2{%
      \vskip\abovecaptionskip
      \sbox\@tempboxa{#1: #2}%
      \ifdim \wd\@tempboxa >\hsize
        #1: #2\par
      \else
        \global \@minipagefalse
        \hb@xt@\hsize{\hfil\box\@tempboxa\hfil}%
      \fi
      \vskip\belowcaptionskip}}
    \ifx\caption@tempa\@makecaption
      \caption@InfoNoLine{Standard document class detected}%
    \else
%    \end{macrocode}
% Otherwise we are clueless and use standard default settings for the captions anyway.
% (And we unset the |document|\-|class| flag to indicate that the content of |\caption@document|\-|class| is not correct.)
%    \begin{macrocode}
      \caption@InfoNoLine{%
        Unknown document class (or package),\MessageBreak
        standard defaults will be used}%
      \caption@InfoNoLine{\string\@makecaption\space=\space\meaning\@makecaption\@gobble}%
      \caption@setbool{documentclass}{0}%
    \fi
    \def\caption@documentclass{base}%
  }}}}}}%
}{}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@ifclassloaded}
% \changes{v1.8e}{2019/09/09}{This macro added}
% |\caption@ifclassloaded|\marg{name}\marg{yes-code}\marg{no-code}
%    \begin{macrocode}
\newcommand*\caption@ifclassloaded[1]{%
  \edef\caption@tempa{#1}%
  \ifx\caption@tempa\caption@documentclass
    \expandafter\@firstoftwo
  \else
    \expandafter\@secondoftwo
  \fi}
%    \end{macrocode}
% \end{macro}
%
% \subsection{The standard \texorpdfstring{\LaTeX{}}{LaTeX} classes}
%
% Since this is the default, there is no extra work to be done here.
%
% \subsection{The elsarticle classes}
% \changes{v1.5}{2013/01/06}{elsarticle class support added}
%
%    \begin{macrocode}
\caption@ifclassloaded{elsarticle}{%
%    \end{macrocode}
%    \begin{macrocode}
  \DeclareCaptionDefaultFont{font}{\footnotesize}
%    \end{macrocode}
%    \begin{macrocode}
}{}
%    \end{macrocode}
%
% \subsection{The \AmS{} \& \SmF{} classes}
% \changes{v1.1}{2007/07/29}{\AmS\ \& \SmF\ classes support added}
%
%    \begin{macrocode}
\caption@ifclassloaded{ams}{%
%    \end{macrocode}
%    \begin{macrocode}
  \let\captionmargin\captionindent % set to 3pc by AMS class
  \begingroup\edef\@tempa{\endgroup
    \noexpand\caption@g@addto@list\noexpand\caption@sty@default
      {margin=\the\captionmargin
       \caption@ifdefined\smf@makecaption{,maxmargin=.1\linewidth}{}}}
  \@tempa
  \caption@g@addto@list\caption@sls@default{margin*=.5\captionmargin}
  \DeclareCaptionLabelSeparator{default}{.\enspace}
  \DeclareCaptionDefaultFont{font}{\@captionfont}
  \DeclareCaptionDefaultFont{labelfont}{\@captionheadfont}
  \DeclareCaptionDefaultFont{textfont}{\@captionfont\upshape}
  \captionsetup[figure]{position=b}
  \captionsetup[table]{position=t}
%    \end{macrocode}
%    \begin{macrocode}
}{}
%    \end{macrocode}
%
% \subsection{The beamer class (Part one)}
% \changes{v1.1}{2007/03/10}{\package{beamer} class support added}
% \changes{v1.3}{2011/08/06}{\package{beamer} class support revised}
% \changes{v1.5}{2013/04/27}{The \package{beamer} template \texttt{caption label separator} will be used now}
% \changes{v1.7}{2016/05/22}{Re-definition of label format \texttt{simpleMagyar} added to \package{beamer} class support}
% \changes{v1.7}{2018/04/15}{Re-definition of label format \texttt{simpleMagyar} revised}
% \changes{v1.7}{2018/05/01}{Definition of \package{beamer} default label font revised}
%
%    \begin{macrocode}
\caption@ifclassloaded{beamer}{%
%    \end{macrocode}
%
% \begin{macro}{\caption@ifbeamertemplate}
% |\caption@ifbeamertemplate|\marg{caption template name}\marg{yes-code}\marg{no-code}\\
% tests if the given beamer caption template was selected by the user (or not).
%    \begin{macrocode}
  \newcommand*\caption@ifbeamertemplate[1]{%
    \begingroup
      \let\beamer@@tmpl@caption@ORI\beamer@@tmpl@caption
      \@nameuse{beamer@@tmpop@caption@#1}%
      \ifx\beamer@@tmpl@caption@ORI\beamer@@tmpl@caption
        \endgroup\expandafter\@firstoftwo
      \else
        \endgroup\expandafter\@secondoftwo
      \fi}
%    \end{macrocode}
% \end{macro}
%
%    \begin{macrocode}
  \DeclareCaptionLabelFormat{default}{%
    \caption@ifbeamertemplate{numbered}%
      \caption@lfmt@simple
      \caption@lfmt@unnumbered
    {#1}{#2}}
%    \end{macrocode}
% The \package{magyar} babel package redefines the current label format to a one called |simple|\-|Magyar|,
% defined within |\@@magyar@caption|\-|fix| which will be executed |\At|\-|Begin|\-|Document|.
%    \begin{macrocode}
  \DeclareCaptionLabelFormat{default@magyar}{%
    \caption@ifbeamertemplate{numbered}%
      \caption@lfmt@simple@magyar
      \caption@lfmt@unnumbered
    {#1}{#2}}
  \@ifundefined{@@magyar@captionfix}\AtBeginDocument\@firstofone{%
    \@ifundefined{@@magyar@captionfix}{}{%
      \g@addto@macro\@@magyar@captionfix{%
        \let\caption@lfmt@simple@magyar\caption@lfmt@simpleMagyar
        \let\caption@lfmt@simpleMagyar\caption@lfmt@default@magyar}}}
%    \end{macrocode}
%    \begin{macrocode}
  \caption@declarelabelseparator
    {\caption@ifbeamertemplate{caption name own line}\@gobble\@firstofone}
    {default}
    {\caption@ifbeamertemplate{caption name own line}{\\}%
       {\usebeamertemplate{caption label separator}}}
  \DeclareCaptionDefaultFont{font}{%
    \usebeamerfont*{caption}%
    \usebeamercolor[fg]{caption}}
  \DeclareCaptionDefaultFont{labelfont}{%
    \setbeamercolor*{caption}{}% avoid setting "caption" color additionally
    \usebeamercolor[fg]{caption name}%
    \setbeamerfont*{caption}{}% avoid setting "caption" font additionally
    \usebeamerfont{caption name}}
  \DeclareCaptionDefaultJustification{\raggedright}
%    \end{macrocode}
%    \begin{macrocode}
  \DeclareOption{beamerclass}{%
    \renewcommand\caption@ifslc{%
      \caption@ifbeamertemplate{caption name own line}\@secondoftwo\@firstoftwo}
    % Since the beamer class do not offer a `list of figures' we switch this support off.
    \captionsetup{list=0}}
  \PassOptionsToPackage{beamerclass}{caption3}
%    \end{macrocode}
%
% If the \package{beamer} document class is used, we offer a beamer
% template called `caption3' which can be used with option `beamer' or
% |\setbeamertemplate{caption}[caption3]|.\par
% (Note that this is of no use when the \package{caption} package is used, too.)
%    \begin{macrocode}
  \defbeamertemplate{caption}{caption3}{%
    \caption@make\insertcaptionname\insertcaptionnumber\insertcaption}
%    \end{macrocode}
%    \begin{macrocode}
  \DeclareOption{beamer}{%
    % \usebeamertemplate**{caption} will set font
    \DeclareCaptionDefaultFont{font}{}%
    \setbeamertemplate{caption}[caption3]}
%    \end{macrocode}
%    \begin{macrocode}
%
%    \begin{macrocode]
}{}
%    \end{macrocode}
%
% \subsection{The KOMA-Script classes}
% \changes{v1.1}{2007/03/31}{\KOMAScript\ classes support added}
%
%    \begin{macrocode}
\caption@ifclassloaded{koma}{%
%    \end{macrocode}
%    \begin{macrocode}
  \DeclareCaptionFormat{default}[#1#2#3\par]{%
    \ifdofullc@p
      \caption@ifin@list\caption@lsepcrlist\caption@lsepname
        {\caption@Error{%
           The option `labelsep=\caption@lsepname' does not work\MessageBreak
           with \noexpand\setcaphanging (which is set by default)}}%
        {\caption@fmt@hang{#1}{#2}{#3}}%
    \else
      #1#2%
      \ifdim\cap@indent<\z@
        \par
        \noindent\hspace*{-\cap@indent}%
      \else\if@capbreak
        \par
      \fi\fi
      #3\par
    \fi}
  \DeclareCaptionLabelSeparator{default}{\captionformat}
  \DeclareCaptionDefaultFont{font}{\scr@fnt@caption}
  \DeclareCaptionDefaultFont{labelfont}{\scr@fnt@captionlabel}
%    \end{macrocode}
%
% \changes{v1.0f}{2005/08/22}{Increased compatibility to KOMA-Script:
%        A special version of options `parindent' and `parskip' added}
% \changes{v1.0g}{2006/01/03}{Bugfix 06-01-03: KOMA-Script variants of
%        `parskip' and `parindent' options revised and moved into caption kernel}
% \changes{v1.0h}{2006/02/23}{KOMA-Script variants of `parskip' and
%        `parindent' are obsolete now, removed}
% \changes{v1.0m}{2007/03/30}{KOMA-Script variants of `parskip' and
%        `parindent' re-added, since they still collide with the current
%        version of the subfig package (Sigh!)}
%
% There is an option clash between the \KOMAScript\ document classes
% and the \package{caption} kernel, both define the options |parindent| and
% |parskip| but with different meaning.
% Furthermore the ones defined by the \package{caption} kernel take a
% value as parameter but the \KOMAScript\ ones do not.
% So we need special versions of the options |parindent| and |parskip| here
% which determine if a value is given (and therefore should be treated as
% our option) or not (and therefore should be ignored by us).\footnote{%^^A
% This problem was completely solved due a change of \cs{caption@ProcessOptions}
% in \thispackage\ \version{1.0h}, but we still need this workaround since
% these options would otherwise still collide with the current version $1.3$
% of the \package{subfig} package (Sigh!)}
%    \begin{macrocode}
  \let\caption@KV@parindent\KV@caption@parindent
  \DeclareCaptionOption{parindent}[]{%
    \ifx,#1,%
      \caption@Debug{Option `parindent' ignored}%
    \else
      \caption@KV@parindent{#1}%
    \fi}%
%    \end{macrocode}
%    \begin{macrocode}
  \let\caption@KV@parskip\KV@caption@parskip
  \DeclareCaptionOption{parskip}[]{%
    \ifx,#1,%
      \caption@Debug{Option `parskip' ignored}%
    \else
      \caption@KV@parskip{#1}%
    \fi}%
%    \end{macrocode}
%    \begin{macrocode}
}{}
%    \end{macrocode}
%
% \subsection{The \NTG{} Dutch classes}
% \changes{v1.1}{2007/04/06}{NTG classes support added}
%
%    \begin{macrocode}
\caption@ifclassloaded{ntg}{%
%    \end{macrocode}
%    \begin{macrocode}
  \DeclareCaptionDefaultFont{labelfont}{\CaptionLabelFont}
  \DeclareCaptionDefaultFont{textfont}{\CaptionTextFont}
%    \end{macrocode}
%    \begin{macrocode}
}{}
%    \end{macrocode}
%
% \subsection{The thesis class}
% \changes{v1.2a}{2008/01/31}{thesis class support added}
% \changes{v1.2e}{2009/11/15}{Bugfix 09-11-14: thesis class support revised}
%
%    \begin{macrocode}
\caption@ifclassloaded{thesis}{%
%    \end{macrocode}
%    \begin{macrocode}
  \DeclareCaptionDefaultFormat{hang}
  \DeclareCaptionDefaultFont{labelfont}{\cph@font}
  \DeclareCaptionDefaultFont{textfont}{\cpb@font}
%    \end{macrocode}
%    \begin{macrocode}
}{}
%    \end{macrocode}
%
% \subsection{The arabic Babel option}
% \changes{v1.8}{2018/05/20}{\package{arabic} babel package support added}
%
%    \begin{macrocode}
\caption@ifdefined\ArabiCoreLoaded{%
%    \end{macrocode}
%
% \begin{macro}{\caption@rl}
% \changes{v1.8}{2018/05/20}{This macro added}
%    \begin{macrocode}
  \newcommand\caption@rl[1]{\if@rl\textRL{#1}\else\textLR{#1}\fi}
%    \end{macrocode}
% \end{macro}
%
%    \begin{macrocode}
  \def\fnum@figure{\figurename\nobreakspace\thefigure}%
  \def\fnum@table{\tablename\nobreakspace\thetable}%
%    \end{macrocode}
%    \begin{macrocode}
  \DeclareCaptionLabelSeparator{arabi}{ : }
  \DeclareCaptionLabelSeparator{default}{%
    \if@rl\caption@lsep@arabi\else\caption@lsep@colon\fi}
%    \end{macrocode}
%    \begin{macrocode}
}{%
  \let\caption@rl\@firstofone
}
%    \end{macrocode}
%
% \subsection{The frenchb Babel option}
% \changes{v1.1}{2006/05/14}{\package{frenchb} babel package support added}
%
%    \begin{macrocode}
\caption@ifdefined\FB@makecaption{%
%    \end{macrocode}
%    \begin{macrocode}
  \ifx\@makecaption\STD@makecaption
    \DeclareCaptionLabelSeparator{default}{\CaptionSeparator}
    \def\caption@frenchb{% supress frenchb warning
      \let\STD@makecaption\@makecaption
      \let\FB@makecaption\@makecaption}
  \else
    \ifx\@makecaption\@undefined\else
      \caption@InfoNoLine{%
        The definition of \protect\@makecaption\space
        has been changed,\MessageBreak
        frenchb will NOT customize it}%
    \fi
  \fi
%    \end{macrocode}
%    \begin{macrocode}
}{}
%    \end{macrocode}
%
% \subsection{The frenchle/pro package}
% \changes{v1.1}{2006/05/14}{\package{frenchle/pro} package support added}
%
%    \begin{macrocode}
\caption@ifdefined\frenchTeXmods{%
%    \end{macrocode}
%    \begin{macrocode}
  \DeclareCaptionDefaultFont{textfont}{\itshape}%
  \DeclareCaptionLabelSeparator{default}{\captionseparator\space}%
%    \end{macrocode}
%    \begin{macrocode}
}{}
%    \end{macrocode}
%
% \subsection{The hungarian and magyar Babel option}
% \changes{v1.3}{2009/03/29}{\package{magyar} package support added}
% \changes{v1.3a}{2011/08/12}{\package{magyar} package support revised}
% \changes{v1.8b}{2018/08/26}{\package{magyar} package support revised}
%
%    \begin{macrocode}
\DeclareCaptionListFormat{subperiod}{#2.}
%    \end{macrocode}
%
%    \begin{macrocode}
\def\caption@tempa#1{%
  \@ifpackagewith{babel}{#1}{%
    \caption@InfoNoLine{#1 babel option is loaded}%
    \expandafter\addto\csname extras#1\endcsname{%
       % change default labelsep and listformat
       \caption@setdefaultlabelsep{period}%
       \caption@setdefaultlistformat{subperiod}}%
    \expandafter\addto\csname noextras#1\endcsname{%
       % change default labelsep and listformat
       \caption@setdefaultlabelsep{colon}%
       \caption@setdefaultlistformat{subsimple}}%
  }{}}
%    \end{macrocode}
%    \begin{macrocode}
\caption@tempa{hungarian}
\caption@tempa{magyar}
%    \end{macrocode}
%
% TODO: babel-latvian/latvian.ldf
%
% \section{Package support}
%
% \begin{macro}{\caption@xpackage}
% \changes{v1.11}{2020/05/10}{This macro added}
% |\caption@xpackage|\marg{macro}\marg{package}\marg{option}
% expands the given macro if the given package is not loaded.
% (Note: We cannot use |\@ifpackageloaded| here since it's not available after |\AtBeginDocument|.)
%    \begin{macrocode}
\newcommand*\caption@xpackage[2]{%
  \expandafter\ifx\csname ver@#2.\caption@pkgextension\endcsname\relax
    \expandafter\@firstofone
  \else
    \expandafter\@gobbletwo
  \fi
  {#1{#2}}}
%    \end{macrocode}
%    \begin{macrocode}
\let\caption@pkgextension\@pkgextension
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@loadpackage}
% \changes{v1.11}{2020/05/10}{This macro added}
% |\caption@loadpackage|\marg{package}\marg{caption option}
% loads the given package immediately.
%    \begin{macrocode}
\newcommand*\caption@loadpackage{%
  \caption@xpackage\caption@@loadpackage}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@@loadpackage[2]{%
  \caption@Info{Option `#2' requires the `#1' package}%
  \RequirePackage{#1}\relax}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@requirepackage}
% \changes{v1.10}{2020/05/10}{This macro added}
% |\caption@requirepackage|\marg{package}\marg{caption option}
% indicates that the given package option needs a package.
%    \begin{macrocode}
\newcommand*\caption@requirepackage{%
  \caption@xpackage\caption@@requirepackage}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@@requirepackage[2]{%
  \@cons\caption@packagelist{{#1}{#2}}}% load package later on
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@pkg@list}
% \changes{v1.4b}{2012/01/12}{This macro added}
% We used this in the past as list of packages loaded |\AtBeginDocument|.
% (Note: Old |.aux| files could contain |\@cons|\-|\caption@pkg@list|\-|{{|\meta{package}|}}|,
% so this macro should always be defined, even if we change the following code in the future.)
%    \begin{macrocode}
\newcommand*\caption@pkg@list{}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@packagelist}
% \changes{v1.11}{2020/05/10}{This macro added}
% We use this as list of packages loaded |\AtBeginDocument|.
%    \begin{macrocode}
\newcommand*\caption@packagelist{}
\@onlypreamble\caption@packagelist
%    \end{macrocode}
%    \begin{macrocode}
\caption@AtBeginDocument{%
  \def\caption@tempa{\endgroup}%
  \begingroup
  \def\@elt#1#2{%
    \g@addto@macro\caption@tempa{%
      \caption@loadpackage{#1}{#2}}}%
  \caption@packagelist
  \caption@tempa
%    \end{macrocode}
%    \begin{macrocode}
  \renewcommand*\caption@@loadpackage[2]{%
    \caption@Error{Option `#2' requires the `#1' package}}%
  \let\caption@@requirepackage\caption@@loadpackage
  }
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@usepackage}
% \changes{v1.11}{2020/05/10}{This macro added}
% |\caption@usepackage|\marg{package}\marg{option}\marg{code}
% loads the given package and executes the given code.
% (Note: Since the package might use the crappy \package{keyval}
%  package, too, we need to save \& restore some macros here, otherwise this
%  recursion won't work properly.)
%    \begin{macrocode}
\newcommand*\caption@usepackage[3]{%
  \IfCaptionOptionCheck
    {\caption@requirepackage{#1}{#2}}%
    {\let\KV@prefix@ORI\KV@prefix
     \let\@tempc@ORI\@tempc
     \caption@loadpackage{#1}{#2}%
     #3%
     \let\@tempc\@tempc@ORI
     \let\KV@prefix\KV@prefix@ORI}}
% \end{macro}
%
% \subsection{The newfloat package}
%
% \begin{macro}{\caption@newfloat}
% \changes{v1.4b}{2012/01/12}{This macro added}
% \changes{v1.8h}{2020/01/03}{Usage of \cs{caption@ifpackageloaded} replaced by \cs{RequirePackage}}
% \changes{v1.11}{2020/05/10}{Usage of \cs{RequirePackage} replaced by \cs{caption@usepackage}}
% |\caption@newfloat|\marg{option}\marg{code}
% loads the \package{newfloat} package and executes the given code afterwards.
%    \begin{macrocode}
\newcommand*\caption@newfloat{\caption@usepackage{newfloat}}
%    \end{macrocode}
% \end{macro}
%
% \changes{v1.0c}{2004/08/03}{Options \opt{figurename} and \opt{tablename} added}
% \changes{v1.1}{2007/07/04}{Options \opt{figurename} and \opt{tablename} re-written}
% \changes{v1.2}{2007/11/18}{Option \opt{name} added}
%    \begin{macrocode}
\DeclareCaptionOption{figurename}{\caption@SetName{figure}{#1}}
\@onlypreamble@key{caption}{figurename}
\DeclareCaptionOption{tablename}{\caption@SetName{table}{#1}}
\@onlypreamble@key{caption}{tablename}
%    \end{macrocode}
%
% \changes{v1.2a}{2008/02/28}{Options \opt{listfigurename} and \opt{listtablename} added}
%    \begin{macrocode}
\DeclareCaptionOption{listfigurename}{\caption@SetName{listfigure}{#1}}
\@onlypreamble@key{caption}{listfigurename}
\DeclareCaptionOption{listtablename}{\caption@SetName{listtable}{#1}}
\@onlypreamble@key{caption}{listtablename}
%    \end{macrocode}
%
% \begin{macro}{\caption@SetName}
% \changes{v1.1}{2007/07/04}{This macro added}
% \changes{v1.2}{2007/11/18}{After-preamble variant added}
% \changes{v1.2a}{2008/02/28}{Renamed from \cs{caption@SetFloatName} to \cs{caption@SetName}}
% \changes{v1.2b}{2008/08/02}{Bugfix: Works now without \cs{addto}, too}
% \changes{v1.4a}{2011/10/29}{Outsourced to \package{newfloat} package}
% \changes{v1.4b}{2012/01/12}{Bugfix: Uses \cs{caption@newfloat} now}
%  |\caption@SetName|\marg{float}\marg{name}
%    \begin{macrocode}
\newcommand*\caption@SetName[2]{%
  \caption@newfloat{#1name}{\newfloat@setname{#1}{#2}}}
\@onlypreamble\caption@SetName
%    \end{macrocode}
% \end{macro}
%
%    \begin{macrocode}
\DeclareCaptionOption{name}{%
  \IfCaptionOptionCheck{}{\caption@setname\@captype{#1}}}
%    \end{macrocode}
%
% \begin{macro}{\caption@setname}
%  |\caption@setname|\marg{float}\marg{name}
%    \begin{macrocode}
\newcommand*\caption@setname[2]{%
  \@namedef{#1name}{#2}}
%    \end{macrocode}
% \end{macro}
%
% \changes{v1.2}{2007/12/21}{Options \opt{figurewithin} and \opt{tablewithin} added}
% \changes{v1.2e}{2010/01/09}{The \opt{within} options are now available within the document, too}
%
%    \begin{macrocode}
\DeclareCaptionOption{figurewithin}{\caption@within{figure}{#1}}
\DeclareCaptionOptionNoValue{figurewithout}{\caption@within{figure}{none}}
\DeclareCaptionOption{tablewithin}{\caption@within{table}{#1}}
\DeclareCaptionOptionNoValue{tablewithout}{\caption@within{table}{none}}
%    \end{macrocode}
%
% \begin{macro}{\caption@within}
% \changes{v1.2}{2007/12/21}{This macro added}
% \changes{v1.4a}{2011/10/29}{Outsourced to \package{newfloat} package}
% \changes{v1.4b}{2012/01/12}{Bugfix: Uses \cs{caption@newfloat} now}
% |\caption@within|\marg{float}\marg{value}
%    \begin{macrocode}
\newcommand*\caption@within[2]{%
  \caption@newfloat{#1within}{\newfloat@setwithin{#1}{#2}}}
%    \end{macrocode}
% \end{macro}
%
% \changes{v1.2b}{2008/04/13}{Option \opt{within} added}
% \changes{v1.2e}{2010/01/09}{The global \opt{within} option will now affect user-defined floats declared with \cs{DeclareCaptionType}, too}
%
%    \begin{macrocode}
\DeclareCaptionOption{within}{%
  \caption@newfloat{within}{\newfloatsetup{within=#1}}}
\DeclareCaptionOptionNoValue{without}{%
  \caption@newfloat{without}{\newfloatsetup{without}}}
%    \end{macrocode}
%
% \subsection{The ragged2e package}
% \changes{v1.0b}{2004/05/16}{Improved \package{ragged2e} package support}
% \changes{v1.8h}{2020/01/03}{Revised \package{ragged2e} package support}
% \changes{v1.9}{2020/05/05}{Enhanced \package{ragged2e} package support}
% \changes{v1.10}{2020/05/10}{Revised \package{ragged2e} package support}
%
% We support the upper-case commands offered by the \package{ragged2e}
% package.
%    \begin{macrocode}
\DeclareCaptionJustification[ragged2e]{Justified}{\justifying}
\DeclareCaptionJustification[ragged2e]{Centering}{\Centering}
\DeclareCaptionJustification[ragged2e]{RaggedLeft}{\RaggedLeft}
\DeclareCaptionJustification[ragged2e]{RaggedRight}{\RaggedRight}
%    \end{macrocode}
%
% \subsection{The sansmath package}
% \changes{v1.3}{2011/01/01}{\package{sansmath} package support added}
% \changes{v1.10}{2020/05/10}{\package{sansmath} package support revised}
%
%    \begin{macrocode}
\DeclareCaptionFont[sansmath]{sansmath}{\sansmath}
%    \end{macrocode}
%
% \subsection{The setspace package}
% \changes{v1.0n}{2007/04/02}{\package{setspace} package support added}
% \changes{v1.2d}{2009/10/09}{\package{setspace} package support revised}
%
%    \begin{macrocode}
\DeclareCaptionFont{singlespacing}{%
  \caption@ifdefined\setspace@singlespace{%
    \setstretch\setspace@singlespace}{}}% normally 1
\DeclareCaptionFont[setspace]{onehalfspacing}{\onehalfspacing}
\DeclareCaptionFont[setspace]{doublespacing}{\doublespacing}
\DeclareCaptionFont[setspace]{stretch}{\setstretch{#1}}
%    \end{macrocode}
%
% \subsection{The subfig package}
% \changes{v1.1}{2007/07/07}{Several adaptions to the \package{subfig} package added}
% \changes{v1.4a}{2011/11/01}{Test for the \package{subfig} package revised}
%
% Since the \package{subfig} package is not maintained anymore,
% we have to make several adaptions to \thispackage~\version{1.1} here.
% Please note that we only support the version $1.3$ of the \package{subfig} package here.
% So older versions do not work with this version of \thispackage, and newer
% versions are expected to be adapted.
%    \begin{macrocode}
\caption@AtBeginDocument{%
  \def\@tempa{2005/06/28 ver: 1.3 subfig package}%
  \expandafter\ifx\csname ver@subfig.sty\endcsname\@tempa
    \caption@InfoNoLine{subfig package v1.3 is loaded}%
%    \end{macrocode}
%    \begin{macrocode}
    \let\caption@setfloattype\@gobble
    \let\@dottedxxxline\sf@NEW@dottedxxxline
    \let\sf@subfloat\sf@NEW@subfloat
%    \end{macrocode}
%    \begin{macrocode}
  \fi
  \let\sf@NEW@dottedxxxline\@undefined
  \let\sf@NEW@subfloat\@undefined}
%    \end{macrocode}
%
% \begin{macro}{\@dottedxxxline}
% New version of |\@dottedxxxline|
%    \begin{macrocode}
\def\sf@NEW@dottedxxxline#1#2#3#4#5#6#7{%
  \begingroup
    \caption@setfloattype{#1}%
    \caption@setoptions{subfloat}%
    \caption@setoptions{sub#1}%
    \ifnum #3>\@nameuse{c@#2depth}\else
      \@dottedtocline{\z@}{#4}{#5}{#6}{#7}%
    \fi
  \endgroup}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\sf@subfloat}
% \changes{v1.4b}{2011/12/29}{Bugfix 11-12-23: Usage of \cs{caption@warmup} added}
% New version of |\sf@subfloat|
%    \begin{macrocode}
\def\sf@NEW@subfloat{%
  \begingroup
    \@nameuse{caption@warmup}%
    \caption@setfloattype\@captype
    \sf@ifpositiontop{%
      \maincaptiontoptrue
    }{%
      \maincaptiontopfalse
    }%
    \caption@setoptions{subfloat}%
    \caption@setoptions{sub\@captype}%
    \let\sf@oldlabel=\label
    \let\label=\subfloat@label
    \ifmaincaptiontop\else
      \advance\@nameuse{c@\@captype}\@ne
    \fi
    \refstepcounter{sub\@captype}%
    \setcounter{sub\@captype @save}{\value{sub\@captype}}%
    \@ifnextchar [%  %] match left bracket
      {\sf@@subfloat}%
      {\sf@@subfloat[\@empty]}}
%    \end{macrocode}
% \end{macro}
%
% Make the \package{subfig} package documentation compile.
%    \begin{macrocode}
%%\@ifl@aded{dtx}{subfig}{\caption@loadpackage{ragged2e}{}}{} % not needed
\DeclareCaptionOption{lofdepth}[2]{\caption@ifdefined\c@lofdepth{\setcounter{lofdepth}{#1}}{}}
\DeclareCaptionOption{lotdepth}[2]{\caption@ifdefined\c@lotdepth{\setcounter{lotdepth}{#1}}{}}
%    \end{macrocode}
%
% \section{Execution of options}
%
%    \begin{macrocode}
\captionsetup{style=default,position=default,%
              list,listformat=default,twoside=\if@twoside 1\else 0\fi}
%    \end{macrocode}
%    \begin{macrocode}
\ProcessOptions*
%    \end{macrocode}
%
% \section{Making an `List of' entry}
%
% \begin{macro}{\caption@addcontentsline}
% \changes{v1.1}{2007/07/01}{This macro added}
% \changes{v1.3}{2010/10/26}{Error check added}
% \changes{v1.3}{2011/06/24}{Split into two macros}
% \changes{v1.4}{2011/08/19}{Split into three macros}
% \changes{v1.4}{2011/08/30}{Support for option \opt{listtype=} added}
% \changes{v1.5}{2012/01/15}{Usage of \cs{caption@addsubcontentslines} added}
% \changes{v1.7}{2015/09/15}{Argument \#3 which holds the environment name added to \cs{caption@lstfmt}}
% \changes{v1.7}{2015/09/20}{Unfortunately \package{subfig} defines and uses \cs{caption@lstfmt} as well, so I replaced the third argument with \cs{captionlisttype}}
% \changes{v1.8}{2018/09/06}{Adapted to the \package{chkfloat} package}
%  |\caption@addcontentsline|\marg{type}\marg{list entry}\par
%  Makes an entry in the list-of-whatever, if requested,
%  i.e.~the argument \meta{list entry} is not empty and
%  |listof=| was set to |true|.
%    \begin{macrocode}
\newcommand\caption@addcontentsline[2]{%
  \caption@ifcontentsline{#2}{%
    \begingroup
      \let\@tempa\@gobble
      \caption@ifdefined\caption@listtype
        {\let\@tempa\@firstofone}%
        {\edef\caption@listtype{#1}}%
      \caption@ifdefined\caption@listtype@ext
        {\edef\caption@listtype{\caption@listtype\caption@listtype@ext}%
         \let\@tempa\@firstofone}%
        {}%
      \@tempa
        {\caption@Debug{addcontentsline: #1 => \caption@listtype}%
%        \caption@setoptions\caption@listtype
         \@namedef{the\caption@listtype}{\@nameuse{the#1}}}%
      \expandafter\caption@@addcontentsline\expandafter{\caption@listtype}{#2}%
    \endgroup}%
    \caption@addsubcontentslines{#1}}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand\caption@@addcontentsline[2]{%
  {\let\\\space
   \@ifundefined{ext@#1}%
     {\caption@Error{No float type '#1' defined}}%
     {\def\captionlisttype{#1}%
      \caption@add@contentsline
        {\csname ext@#1\endcsname}%
        {#1}%
        {\caption@lstfmt{\@nameuse{p@#1}}{\@nameuse{the#1}}}%
        {\ignorespaces #2}%
      \caption@chkfloat{#1}{#2}}}}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@add@contentsline{%
  \caption@@@addcontentsline}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@@@addcontentsline[4]{%
% \caption@ifdefined\main@Arabi@language
%   {\addtocontents{#1}{\xstring\select@language{\main@Arabi@language}}}{}%
  \addcontentsline{#1}{#2}{\protect\numberline{#3}{#4}}}
%    \end{macrocode}
%    \begin{macrocode}
\let\caption@chkfloat\@gobbletwo
%    \end{macrocode}
%    \begin{macrocode}
\newcommand\caption@ifcontentsline[1]{%
  \caption@iflist
    {\def\@tempa{#1}}%
    {\let\@tempa\@empty}%
  \ifx\@tempa\@empty
    \expandafter\@gobble
  \else
    \expandafter\@firstofone
  \fi}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@addsubcontentslines[1]{}
%    \end{macrocode}
% \end{macro}
%
% \section{Typesetting the caption}
%
% \begin{macro}{\ifcaption@star}
% If the starred form of |\caption| is used, this will be set to |true|.
% (It will be reset to |false| at the end of |\caption@@make|.)
%    \begin{macrocode}
\newif\ifcaption@star
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@fnum}
% \changes{v1.1}{2007/08/21}{This macro added}
%  |\caption@fnum|\marg{float type}\par
%  Typesets the caption label; as replacement for |\fnum@|\meta{float type}.
%    \begin{macrocode}
\newcommand*\caption@fnum[1]{\caption@lfmt{\@nameuse{#1name}}{\@nameuse{the#1}}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@make}
%  |\caption@make|\marg{float name}\marg{ref.\ number}\marg{text}\par
%  Typesets the caption.
%    \begin{macrocode}
\newcommand\caption@make[2]{\caption@@make{\caption@lfmt{#1}{#2}}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@@make}
% \changes{v1.0b}{2004/05/16}{Bugfix 04-05-05: \cs{ifdim}\cs{captionindent=}\cs{z@} added}
% \changes{v1.0c}{2005/02/12}{Bugfix 04-10-26: Use \cs{@tempdima} instead of
%        \cs{captionmargin} resp. \cs{captionwidth}; check for \cs{z@} added}
% \changes{v1.0c}{2005/02/12}{Bugfix: \cs{hskip}\cs{captionmargin} to the end
%        of caption added}
% \changes{v1.0c}{2005/02/12}{Bugfix: \cs{strut} moved from here to \cs{caption@@@make}}
% \changes{v1.0c}{2005/02/12}{Single-line-check moved up so it can affect margins now}
% \changes{v1.0c}{2005/02/09}{Improvement: \cs{caption@ifh} added}
% \changes{v1.0c}{2005/02/09}{Bugfix: \cs{leavevmode} added}
% \changes{v1.0f}{2005/08/24}{Uses \cs{sbox} instead of \cs{setbox} in single-line-check}
% \changes{v1.0g}{2005/12/04}{Uses \cs{caption@slc} now}
% \changes{v1.0g}{2006/01/11}{Bugfix: \cs{caption@calcmargin} inside
%        single-line-check replaced by \cs{relax}}
% \changes{v1.0g}{2006/01/11}{Bugfix: \cs{caption@startbox} will always be
%        typeset in horizontal mode}
% \changes{v1.0i}{2006/05/13}{Uses \cs{caption@parbox} instead of \cs{caption@start/endbox}}
% \changes{v1.0j}{2007/01/04}{Oops, bugfix 04-05-05 got lost in v1.0h, re-added}
% \changes{v1.0n}{2007/04/03}{Usage of \cs{caption@ifoddpage} added}
% \changes{v1.1}{2007/07/29}{\cs{caption@calcmargin} moved below single-line-check}
% \changes{v1.1e}{2007/10/28}{\cs{caption@stepcounter} added}
% \changes{v1.5}{2012/03/15}{Uses \cs{caption@tempdima} instead of \cs{@tempdima}}
% \changes{v1.5}{2012/12/26}{max-margin stuff moved to \cs{caption@calcmargin}}
% \changes{v1.6}{2013/05/01}{Usage of \cs{caption@box} added}
% \changes{v1.7}{2016/01/31}{Adapted to the \package{bicaption} package}
% \changes{v1.8f}{2019/12/18}{Usage of \cs{linewidth} replaced by \cs{hsize}}
%  |\caption@@make|\marg{caption label}\marg{caption text}
%    \begin{macrocode}
\newcommand\caption@@make[2]{%
  \begingroup
    \caption@@make@{#1}{#2}%
  \endgroup
  \caption@@make@epilogue}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand\caption@@make@[2]{%
  \caption@stepthecounter
  \caption@beginhook
%    \end{macrocode}
%
% Typeset the outer box |\caption@box|
%    \begin{macrocode}
  \caption@box\hsize{%
%    \end{macrocode}
%
% Special single-line treatment (option |singlelinecheck=|)
%    \begin{macrocode}
    \caption@ifslc{\caption@slc{#1}{#2}\caption@singleline\relax}{}%
%    \end{macrocode}
%
% Typeset the left margin (option |margin=|)
%    \begin{macrocode}
    \caption@calcmargin
    \caption@tempdima\captionmargin
    \ifdim\captionmargin@=\z@ \else
      \caption@ifoddpage{}{\advance\caption@tempdima\captionmargin@}%
    \fi
    \caption@ifh{\advance\caption@tempdima\caption@indent}%
    \hspace\caption@tempdima
%    \end{macrocode}
%
% We actually use a |\vbox| of width |\captionwidth - \caption@indent|
% to typeset the caption.
% \Note{\cs{captionindent} is \emph{not} supported if the caption format
% was defined with \cs{DeclareCaptionFormat*}.}
%    \begin{macrocode}
    \caption@tempdima\captionwidth
    \caption@ifh{\advance\caption@tempdima-\caption@indent}%
    \caption@parbox\caption@tempdima{%
%    \end{macrocode}
%
% Typeset the indention (option |indention=|)\\
% {\small Bugfix 04-05-05:
%  |\hskip-\caption@indent| replaced by |\ifdim\caption@indent=\z@|\ldots}
%    \begin{macrocode}
      \caption@ifh{%
        \ifdim\caption@indent=\z@
          \leavevmode
        \else
          \hskip-\caption@indent
        \fi}%
%    \end{macrocode}
%
% Typeset the caption itself and close the |\caption@parbox|
%    \begin{macrocode}
      \caption@@@make{#1}{#2}}%
%    \end{macrocode}
%
% Typeset the right margin (option |margin=|)
%    \begin{macrocode}
    \caption@tempdima\captionmargin
    \ifdim\captionmargin@=\z@ \else
      \caption@ifoddpage{\advance\caption@tempdima\captionmargin@}{}%
    \fi
    \hspace\caption@tempdima
%    \end{macrocode}
%
% Close the outer box |\caption@box|
%    \begin{macrocode}
  }%
%    \end{macrocode}
%
%    \begin{macrocode}
  \caption@endhook}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand\caption@@make@epilogue{%
  \global\caption@starfalse}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@calcmargin}
% \changes{v1.0f}{2005/10/24}{Internal: \cs{ifcaption@width} replaced by \cs{ifdim}\cs{captionwidth=}\cs{z@}}
% \changes{v1.0g}{2006/01/12}{Improvement: Takes care of list environment now}
% \changes{v1.1}{2006/05/13}{Check of \cs{@listdepth} removed (not necessary anymore), use \cs{linewidth} instead of \cs{hsize}}
% \changes{v1.5}{2012/12/26}{max-margin stuff moved from \cs{caption@@make} to here}
% \changes{v1.8f}{2019/12/18}{Usage of \cs{linewidth} replaced by \cs{hsize}}
%  |\caption@calcmargin|\par
%  Calculate |\captionmargin| \& |\captionwidth|, so both contain valid
%  values.
%    \begin{macrocode}
\newcommand*\caption@calcmargin{%
  \caption@calcmargin@hook
%    \end{macrocode}
% Check margin, if |\caption@minmargin| or |\caption@maxmargin| is set
%    \begin{macrocode}
  \ifx\caption@maxmargin\@undefined \else
    \ifdim\captionmargin>\caption@maxmargin\relax
      \captionmargin\caption@maxmargin\relax
    \fi
  \fi
  \ifx\caption@minmargin\@undefined \else
    \ifdim\captionmargin<\caption@minmargin\relax
      \captionmargin\caption@minmargin\relax
    \fi
  \fi
%    \end{macrocode}
%    \begin{macrocode}
  \ifdim\captionwidth=\z@
    \captionwidth\hsize
    \advance\captionwidth by -2\captionmargin
    \advance\captionwidth by -\captionmargin@
  \else
    \captionmargin\hsize
    \advance\captionmargin by -\captionwidth
    \divide\captionmargin by 2
    \captionmargin@\z@
  \fi
%    \end{macrocode}
%    \begin{macrocode}
  \caption@Debug{%
    \string\hsize=\the\hsize,
    \string\captionwidth=\the\captionwidth,\MessageBreak
    \string\captionmargin=\the\captionmargin,
    \string\captionmargin@=\the\captionmargin@}%
%    \end{macrocode}
%    \begin{macrocode}
}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@slc}
% \changes{v1.1}{2007/06/13}{\cs{let}\cs{caption@hj}\cs{relax} added}
% \changes{v1.1}{2007/07/29}{\cs{caption@setup}\cs{caption@sls} added after \cs{begingroup}}
% \changes{v1.1}{2007/07/29}{\cs{caption@calcmargin} added}
% \changes{v1.1c}{2007/10/14}{Support of \cs{caption@slfmt} added}
% \changes{v1.1d}{2007/10/23}{`SingleLine' renamed to `singleline' for consistency}
% \changes{v1.3}{2010/09/04}{Split into \cs{caption@slc} and \cs{caption@@slc}}
% \changes{v1.5}{2012/12/26}{Merged into a single macro again}
% \changes{v1.5}{2013/04/14}{Definition and usage of \cs{ifsinglelinecaption} added}
%  |\caption@slc|\marg{label}\marg{text}\marg{single-line-code}\marg{multi-line-code}\par
%  This one does the single-line-check.
%    \begin{macrocode}
\newcommand\caption@slc[4]{%
  \caption@Debug{Begin SLC}%
  \singlelinecaptiontrue
  \begingroup
  \caption@singleline
  \let\caption@hj\@empty
  \caption@calcmargin % calculate \captionwidth
  \caption@prepareslc
  \sbox\@tempboxa{\caption@@@make{#1}{#2}}%
  \ifdim\wd\@tempboxa>\captionwidth
    \endgroup
    \singlelinecaptionfalse
    #4%
  \else
    \endgroup
    #3%
  \fi
  \caption@Debug{End SLC}}
%    \end{macrocode}
%    \begin{macrocode}
\newif\ifsinglelinecaption
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@singleline{%
  \caption@xsetup\caption@opt@singleline
  \let\caption@fmt\caption@slfmt}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@prepareslc}
% \changes{v1.0b}{2004/05/16}{Bugfix: Redefinition of \cs{label} \& \cs{@footnotetext} added}
% \changes{v1.0b}{2004/05/16}{Redefine \cs{stepcounter} instead of \cs{footnote(mark)}}
% \changes{v1.0c}{2005/02/12}{\cs{let}\cs{caption@hj}\cs{relax} added}
% \changes{v1.0f}{2005/07/09}{Support of \package{endnotes} package added}
% \changes{v1.1}{2007/06/13}{\cs{let}\cs{caption@hj}\cs{relax} moved to \cs{caption@slc}}
% \changes{v1.1}{2007/06/13}{Redefinition of \cs{(H@)refstepcounter} added}
% \changes{v1.1}{2007/08/12}{Redefinition of \cs{label} improved}
% \changes{v1.1c}{2007/10/06}{Definition of \cs{caption@l@stepcounter} added}
% \changes{v1.3}{2011/07/07}{Bugfix 11-07-06: Redefinition of \cs{footnote} and \cs{footnotemark} added, redefinition of \cs{stepcounter} and \cs{refstepcounter} dropped}
% \changes{v1.4a}{2011/10/21}{Redefinition of \cs{pagenote} from \textsf{memoir} document class added}
% \changes{v1.4a}{2011/10/22}{Redefinition of \cs{footnote} revised}
% \changes{v1.5}{2013/04/13}{Redefinition os \cs{glsunset} added}
% \changes{v1.8}{2018/01/21}{Redefinition of \cs{endnote} added (thanks to Markus Kohm)}
% \changes{v1.8}{2018/05/16}{Redefinition of \cs{acused} added}
% \changes{v1.8}{2018/05/26}{Definition method changed so it can be pre-defined by other packages}
% \changes{v1.8}{2018/05/27}{Redefinition of \cs{hypertarget} added}
% \changes{v1.12b}{2020/07/20}{Special adaption to \class{beamer} added}
%  |\caption@prepareslc|\par
%  Re-define anything which would disturb the single-line-check.
%    \begin{macrocode}
\providecommand*\caption@prepareslc{}
\g@addto@macro\caption@prepareslc{%
  \let\label\caption@gobble
  \let\hypertarget\@gobbletwo
%    \end{macrocode}
% We re-define \cs{footnote} so
% \begin{enumerate}
% \item The footnote counter will not be increased twice (but still the correct footnote mark will be used within the single-line-check)
% \item The footnote text will not be evaluated twice
% \end{enumerate}
%    \begin{macrocode}
  \let\caption@footnote@ORI\footnote
  \def\footnote{\caption@withoptargs\caption@footnote}%
  \let\caption@footnotemark@ORI\footnotemark
  \def\footnotemark{\caption@withoptargs\caption@footnotemark}%
  \let\caption@footnotetext@ORI\@footnotetext
  \let\@footnotetext\caption@gobble
%    \end{macrocode}
% Same for \cs{endnote}
%    \begin{macrocode}
  \let\caption@endnote@ORI\endnote
  \def\endnote{\caption@withoptargs\caption@endnote}%
  \let\caption@endnotemark@ORI\endnotemark
  \def\endnotemark{\caption@withoptargs\caption@endnotemark}%
  \let\caption@endnotetext@ORI\@endnotetext
  \let\@endnotetext\caption@gobble
%    \end{macrocode}
%    \begin{macrocode}
  \let\pagenote\caption@gobble
%    \end{macrocode}
% Adaption to the \package{acronym} package\par
% See also \url{https://tex.stackexchange.com/questions/428788}
%    \begin{macrocode}
  \let\acused\@gobble
  \let\AC@placelabel\@gobble
%    \end{macrocode}
% Adaption to the \package{glossaries} package.\par
% Please note that while this adaption is usually sufficient
% it could give incorrect measuring results if \cs{gls} is both used
% for the very first time and more than once (for a particular acronym).
% The alternative would be using internal macros of the
% \package{glossaries} package which I would like to avoid.\par
% See also \url{https://tex.stackexchange.com/questions/108368}
%    \begin{macrocode}
  \let\glsunset\@gobble
%    \end{macrocode}
%    \begin{macrocode}
}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand\caption@footnote[2]{%
  \caption@footnotemark{#1}}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand\caption@footnotemark[1]{%
  \begingroup
    \let\stepcounter\caption@l@stepcounter
    \caption@footnotemark@ORI#1\relax
  \endgroup}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand\caption@endnote[2]{%
  \caption@endnotemark{#1}}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand\caption@endnotemark[1]{%
  \begingroup
    \let\stepcounter\caption@l@stepcounter
    \caption@endnotemark@ORI#1\relax
  \endgroup}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@l@stepcounter[1]{%
  \advance\csname c@#1\endcsname\@ne\relax}
%    \end{macrocode}
% The patch above assumes that the optional arguments of \cs{footnote} and
% \cs{footnotemark} match. Since this is not the case in \class{beamer} based documents,
% and since \class{beamer} extents the syntax of \cs{footnote} in a special way,
% we need a special patch here.\par
% \emph{Note:} For this patch we assume that \cs{footnote} will always end with the usage of
% \cs{beamer@footnotetext}. (Unfortunately \cs{footnote} is defined too monolithic
% in \class{beamer} to offer a less dirty patch.)
%    \begin{macrocode}
\caption@ifclassloaded{beamer}{%
  \g@addto@macro\caption@prepareslc{%
    \def\footnote{%
      \begingroup
      \let\stepcounter\caption@l@stepcounter
      \renewcommand<>\beamer@framefootnotetext[1]{%
        \endgroup}%
      \let\@footnotetext\beamer@framefootnotetext
      \caption@footnote@ORI}}}{}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@applyfont}
% \changes{v1.3}{2010/09/04}{This macro added}
%  |\caption@applyfont|\par
%  This macro executes the font relevant macros, i.e. by default
%  the options set by |justification=|, |font=|, and |size=|.
%    \begin{macrocode}
\newcommand*\caption@applyfont{%
  \caption@hj\captionfont\captionsize}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@@@make}
% \changes{v1.0b}{2004/05/16}{Bugfix 04-05-06: \cs{allowhyphens} added}
% \changes{v1.0c}{2005/02/12}{Bugfix 04-12-16: Use some kind of
%        \cs{@startstrut}\cs{strutbox} instead of \cs{strut}}
% \changes{v1.0c}{2005/02/12}{Bugfix 05-01-23: \cs{@finalstrut}\cs{strutbox} added}
% \changes{v1.0d}{2005/05/05}{Use \cs{caption@ifempty};
%        \cs{let}\cs{caption@ifstrut}\cs{@secondoftwo} added}
% \changes{v1.0d}{2005/05/05}{Bugfix: Handling of \cs{ifcaption@star} changed}
% \changes{v1.0f}{2005/08/24}{Check for empty label added}
% \changes{v1.0f}{2005/08/25}{\cs{caption@iflf} added}
% \changes{v1.0j}{2007/02/18}{Usage of \cs{caption@tfmt} added}
% \changes{v1.1}{2007/05/07}{Bugfix: \cs{ifhmode} added to \cs{@finalstrut}}
% \changes{v1.2}{2007/11/17}{Made option \opt{size=} stronger than \opt{font=}}
% \changes{v1.3}{2010/09/04}{Uses \cs{caption@applyfont} now}
% \changes{v1.3}{2010/11/01}{Bugfix: If the caption text is empty, the text format will be set to \opt{simple} now}
% \changes{v1.7}{2016/02/01}{Bugfix: \cs{relax} added before \cs{caption@lsep} so the label separator
%        will not be gobbled if the label font command ignores spaces, e.g. by usage of \cs{color}}
% \changes{v1.8}{2018/09/12}{\cs{par} replaced by \cs{captiontextend}}
%  |\caption@@@make|\marg{caption label}\marg{caption text}\par
%  This one finally typesets the caption paragraph, without margin and indention.
%    \begin{macrocode}
\newcommand\caption@@@make[2]{%
%    \end{macrocode}
%
% If the label is empty, we use no caption label separator.
%    \begin{macrocode}
  \sbox\@tempboxa{#1}%
  \ifdim\wd\@tempboxa=\z@
    \let\caption@lsep\relax
%   \@capbreakfalse
  \fi
%    \end{macrocode}
%
% If the text is empty, we use no caption label separator, too.
% (And no text format either.)
%    \begin{macrocode}
  \caption@ifempty{#2}{%
    \let\caption@lsep\@empty
    \let\caption@tfmt\@firstofone
%   \@capbreakfalse
%   \let\caption@ifstrut\@secondoftwo
  }%
%    \end{macrocode}
%
% Take care that |\caption@parindent| and |\caption@hangindent| will be used
% to typeset the paragraph.
%    \begin{macrocode}
  \@setpar{\@@par\caption@@par}\caption@@par
%    \end{macrocode}
%
% Finally typeset the caption.
%    \begin{macrocode}
  \caption@applyfont
  \caption@fmt
    {\ifcaption@star\else
       \begingroup
         \captionlabelfont
         #1%
       \endgroup
     \fi}%
    {\ifcaption@star\else
       \begingroup
         \caption@iflf\captionlabelfont
         \relax\caption@lsep
       \endgroup
     \fi}%
    {{\captiontextfont
      \captiontextstart
      \caption@ifstrut
        {\vrule\@height\ht\strutbox\@width\z@}%
        {}%
      \nobreak\hskip\z@skip % enable hyphenation
      \caption@tfmt{#2}%
%     \caption@ifstrut{\vrule\@height\z@\@depth\dp\strutbox\@width\z@}{}%
      \caption@ifstrut
        {\ifhmode\@finalstrut\strutbox\fi}%
        {}%
      \captiontextend}}}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\captiontextstart{}
\newcommand*\captiontextend{\par}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@ifempty}
% \changes{v1.0d}{2005/05/05}{This macro added}
% \changes{v1.1}{2007/07/04}{Re-defines itself now}
% \changes{v1.2a}{2007/01/22}{Revised so \cs{label} will be detected, too}
% \changes{v1.2b}{2008/08/02}{Revised so \cs{index} and \cs{glossary} will be detected, too}
%  |\caption@ifempty|\marg{text}\marg{true} (\emph{no} \meta{false})\par
%  This one tests if the \meta{text} is actually empty.
%  \Note{This will be done without expanding the text,
%  therefore this is far away from being bullet-proof.}
%  \Note{This macro is re-defining itself so only
%  the first test (in a group) will actually be done.}
%    \begin{macrocode}
\newcommand\caption@ifempty[1]{%
  \caption@if@empty{#1}%
  \caption@ifempty\@unused}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand\caption@if@empty[1]{%
  \def\caption@tempa{#1}%
  \ifx\caption@tempa\@empty
    \let\caption@ifempty\@secondoftwo
  \else
    \expandafter\def\expandafter\caption@tempa\expandafter{%
      \caption@car#1\caption@if@empty\caption@nil}%
    \def\caption@tempb{\caption@if@empty}%
    \ifx\caption@tempa\caption@tempb
      \let\caption@ifempty\@secondoftwo
    \else
      \def\caption@tempb{\ignorespaces}%
      \ifx\caption@tempa\caption@tempb
        \expandafter\caption@if@empty\expandafter{\@gobble#1}%
      \else
        \def\caption@tempb{\label}%
        \ifx\caption@tempa\caption@tempb
          \expandafter\caption@if@empty\expandafter{\@gobbletwo#1}%
        \else
          \def\caption@tempb{\index}%
          \ifx\caption@tempa\caption@tempb
            \expandafter\caption@if@empty\expandafter{\@gobbletwo#1}%
          \else
            \def\caption@tempb{\glossary}%
            \ifx\caption@tempa\caption@tempb
              \expandafter\caption@if@empty\expandafter{\@gobbletwo#1}%
            \else
              \let\caption@ifempty\@gobbletwo
            \fi
          \fi
        \fi
      \fi
    \fi
  \fi}
%    \end{macrocode}
%    \begin{macrocode}
\long\def\caption@car#1#2\caption@nil{#1}% same as \@car, but \long
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@@par}
% \changes{v1.0f}{2005/08/22}{Made this definition global}
%  |\caption@@par|\par
%  This command will be executed with every |\par| inside the caption.
%    \begin{macrocode}
\newcommand*\caption@@par{%
  \parindent\caption@parindent\hangindent\caption@hangindent}%
%    \end{macrocode}
% \end{macro}
%
% \section{Types \& sub-types}
%
% \begin{macro}{\DeclareCaptionType}
% \changes{v1.1}{2007/08/12}{This macro added}
% \changes{v1.1a}{2007/09/07}{Three optional arguments added}
% \changes{v1.2}{2007/12/06}{Renamed from \cs{DeclareFloatingEnvironment} to \cs{DeclareCaptionType}}
% \changes{v1.2}{2007/12/21}{Optional argument revised, uses key-value syntax now}
% \changes{v1.2b}{2008/04/13}{Uses \cs{caption@within@default} now}
% \changes{v1.2b}{2008/08/02}{Support of \cs{float@exts} and \cs{float@addtolists} added}
% \changes{v1.2e}{2010/01/09}{Usage of \cs{caption@DeclareWithinOption} added}
% \changes{v1.3}{2011/08/06}{Definition of \cs{listofXXXes} added}
% \changes{v1.4a}{2011/10/29}{Outsourced as \package{newfloat} package}
%  |\DeclareCaptionType|\oarg{options}\marg{environment}\oarg{name}\oarg{list name}
%    \begin{macrocode}
\newcommand*\DeclareCaptionType{%
  \caption@loadpackage{newfloat}{}%
  \DeclareFloatingEnvironment}
\@onlypreamble\DeclareCaptionType
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@ForEachType}
% \changes{v1.4a}{2011/10/29}{This macro added}
% |\caption@ForEachType|\marg{code}
% will execute the given code for all (known) floating environments.
%    \begin{macrocode}
\newcommand\caption@ForEachType[1]{%
  \caption@ifdefined\ForEachFloatingEnvironment
    {\ForEachFloatingEnvironment{#1}}%
    {\def\@elt##1{#1}%
     \caption@ifdefined\c@figure\@elt\@gobble{figure}%
     \caption@ifdefined\c@table\@elt\@gobble{table}%
     \let\@elt\relax
     \newfloat@addtohook{#1}}}
%    \end{macrocode}
%    \begin{macrocode}
\providecommand\newfloat@addtohook[1]{%
  \toks@=\expandafter{\newfloat@hook{##1}#1}%
  \edef\@tempa{\def\noexpand\newfloat@hook####1{\the\toks@}}%
  \@tempa}
%    \end{macrocode}
%    \begin{macrocode}
\providecommand*\newfloat@hook[1]{}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\DeclareCaptionSubType}
% \changes{v1.2}{2007/11/16}{This macro added}
% \changes{v1.2a}{2008/03/11}{Bugfix: \cs{subfigurename} will be defined now}
% \changes{v1.2d}{2009/10/09}{Bugfix 08-10-01: Usage of \cs{caption@addtoreset} added}
% \changes{v1.3}{2011/01/01}{\cs{@dottedlofline} will be defined \& used now}
% \changes{v1.4}{2011/10/09}{Support of the titletoc package added}
% \changes{v1.5}{2011/12/29}{Usage of \cs{caption@addtoreset} replaced by \cs{@addtoreset}}
% \changes{v1.5}{2013/01/10}{Bugfix: Definition of autoref string corrected}
% \changes{v1.6}{2013/06/17}{Bugfix: \cs{c@tocdepth} will be set (locally) now}
% \changes{v1.8g}{2020/01/02}{Check revised if the sub-type is already defined or not}
%  |\DeclareCaptionSubType|\oarg{numbering scheme}\marg{type}\\
%  |\DeclareCaptionSubType*|\oarg{numbering scheme}\marg{type}\par
%  The starred variant provides the numbering format
%  \meta{type}|.|\meta{subtype} while the non-starred variant simply
%  uses \meta{subtype}.
%    \begin{macrocode}
\newcommand*\DeclareCaptionSubType{%
  \caption@teststar\caption@declaresubtype\@firstoftwo\@secondoftwo}
\@onlypreamble\DeclareCaptionSubType
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@declaresubtype[1]{%
  \@testopt{\caption@@declaresubtype{#1}}{alph}}
\@onlypreamble\caption@declaresubtype
%    \end{macrocode}
%    \begin{macrocode}
\def\caption@@declaresubtype#1[#2]#3{%
  \@ifundefined{c@#3}%
    {\caption@Error{No float type '#3' defined}}%
%    \end{macrocode}
% Check if the sub-type was already defined by |\Declare|\-|Sub|\-|Type|.
% If not, define the counter and list entry.
%    \begin{macrocode}
    {\caption@ifsubtype{sub#3}%
     {\caption@Debug{Modify subtype `sub#3'}}%
     {\caption@Debug{New subtype `sub#3'}%
      \@ifundefined{c@sub#3}%
        {\newcounter{sub#3}\relax}%
        {\caption@Warning{Using already defined counter `sub#3'}}%
      \@addtoreset{sub#3}{#3}%
      \@namedef{ext@sub#3}{\csname ext@#3\endcsname}%
      \caption@declaresublistentry{#3}%
      \@cons\caption@subtypelist{{#3}}}%
%    \end{macrocode}
% Support of \package{titletoc} package
%    \begin{macrocode}
     \caption@ifdefined\contentsuse{%
       \contentsuse{sub#3}{\csname ext@sub#3\endcsname}}{}%
%    \end{macrocode}
%    \begin{macrocode}
     \@namedef{sub#3name}{}%
     \@namedef{sub#3autorefname}{\csname #3autorefname\endcsname}%
     #1% is \@firstoftwo in star form, and \@secondoftwo otherwise
     {\@namedef{p@sub#3}{}%
      \@namedef{thesub#3}{\csname the#3\endcsname.\@nameuse{#2}{sub#3}}}%
     {\@namedef{p@sub#3}{\csname the#3\endcsname}%
      \@namedef{thesub#3}{\@nameuse{#2}{sub#3}}}%
     \@namedef{theHsub#3}{\csname theH#3\endcsname.\arabic{sub#3}}%
    }}
%    \end{macrocode}
%    \begin{macrocode}
\@onlypreamble\caption@@declaresubtype
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@declaresublistentry{%
  \caption@ifdefined\l@chapter
    {\caption@@declaresublistentry\l@subsection}%
    {\caption@@declaresublistentry\l@subsubsection}}
\@onlypreamble\caption@declaresublistentry
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@@declaresublistentry[2]{%
  \ifx#1\@undefined
    \caption@@@declaresublistentry\relax\@dottedtocline\caption@nil{#2}%
  \else
    \expandafter\caption@@@declaresublistentry#1{}{}\@dottedtocline\caption@nil{#2}%
  \fi}
\@onlypreamble\caption@@declaresublistentry
%    \end{macrocode}
%    \begin{macrocode}
\long\def\caption@@@declaresublistentry#1\@dottedtocline#2\caption@nil#3{%
  \def\@tempa{#1}%
% Does \l@(sub)subsection start with \@dottedtocline?
  \ifx\@tempa\@empty
% Yes
    \caption@@@@declaresublistentry{#3}#2\caption@nil
  \else
% No
    \caption@@@@declaresublistentry{#3}@{3.8em}{3.2em}\caption@nil
  \fi}
\@onlypreamble\caption@@@declaresublistentry
%    \end{macrocode}
%    \begin{macrocode}
\def\caption@@@@declaresublistentry#1#2#3#4#5\caption@nil{%
  \expandafter\caption@@@@@declaresublistentry\expandafter
    {\csname @dotted\csname ext@#1\endcsname line\endcsname}{#1}{#3}{#4}}
\@onlypreamble\caption@@@@declaresublistentry
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@@@@@declaresublistentry[4]{%
  \@namedef{l@sub#2}{#1{2}{#3}{#4}}%
  \expandafter\caption@@@@@@declaresublistentry
    \expandafter#1\expandafter{\csname ext@#2\endcsname depth}}
\@onlypreamble\caption@@@@@declaresublistentry
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@@@@@@declaresublistentry[2]{
  \ifx#1\relax
    \def#1##1{%
      \def\next{\@dottedtocline{##1}}%
      \@ifundefined{c@#2}{}{%
        \ifnum ##1>\@nameuse{c@#2}\relax
          \let\next\@gobblefour
        \else
          \c@tocdepth=\@nameuse{c@#2}\relax
        \fi}%
      \next}%
  \fi}
\@onlypreamble\caption@@@@@@declaresublistentry
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@subtypelist}
% An \cs{@elt}-list containing the subtypes defined
% with |\Declare|\-|Caption|\-|Sub|\-|Type|.
%    \begin{macrocode}
\newcommand*\caption@subtypelist{}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@ifsubtype}
% \changes{v1.8g}{2020/01/02}{This macro added}
% This macro checks if the given subtype was defined
% with |\Declare|\-|Caption|\-|Sub|\-|Type| or not.
%    \begin{macrocode}
\newcommand*\caption@ifsubtype[1]{%
  \begingroup
    \let\next\@secondoftwo
    \edef\@tempa{#1}%
    \def\@elt##1{%
      \def\@tempb{sub##1}%
      \ifx\@tempa\@tempb
        \let\next\@firstoftwo
     \fi}%
    \caption@subtypelist
  \expandafter\endgroup\next}
%    \end{macrocode}
% \end{macro}
%
% Unfortunately the \class{memoir} document class resets the
% \texttt{subfigure} resp.~\texttt{subtable} counter at the begin
% of floating environments, i.e.~at |\@float|.
% As a side-effect |\Continued|\-|Float| does not work correctly.
% For that reason we need to introduce macros to save and restore
% all sub-caption counters here.
%
% \begin{macro}{\caption@restorecounters}
% \changes{v1.5}{2013/05/01}{This macro added}
% |\caption@restore|\-|counters| restores all counters saved with
% |\caption@save|\-|counter|.
%    \begin{macrocode}
\newcommand*\caption@restorecounters{%
  \caption@restore@counters
  \global\let\caption@restore@counters\@empty}
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@restore@counters{}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\caption@savesubcounters}
% \changes{v1.5}{2013/05/01}{This macro added}
% |\caption@save|\-|sub|\-|counters| saves all sub-caption counters,
% so they can be restored with |\caption@restore|\-|counters| later on.
%    \begin{macrocode}
\newcommand*\caption@savesubcounters{%
  \def\@elt##1{\caption@savecounter{sub##1}}%
  \caption@subtypelist
  \let\@elt\relax}%
%    \end{macrocode}
%    \begin{macrocode}
\newcommand*\caption@savecounter[1]{%
  \edef\caption@tempa{%
    \noexpand\l@addto@macro\noexpand\caption@restore@counters
      {\noexpand\setcounter{#1}{\number\value{#1}}}}%
  \caption@tempa}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\caption@For}
% \changes{v1.1a}{2007/09/07}{This macro added}
% \changes{v1.2}{2007/11/16}{Renamed from \cs{ForFloatingEnvironments} to \cs{caption@For}}
%  |\caption@For|\marg{elt-list}\marg{code with \#1}\\
%  |\caption@For*|\marg{elt-list}\marg{code with \#1}
%    \begin{macrocode}
\newcommand*\caption@For{%
  \caption@withoptargs\caption@@For}
%\@onlypreamble\caption@For
%    \end{macrocode}
%    \begin{macrocode}
\newcommand\caption@@For[3]{%
  \caption@AtBeginDocument#1{%
    \def\@elt##1{#3}%
    \@nameuse{caption@#2}%
    \let\@elt\relax}}%
%\@onlypreamble\caption@@For
%    \end{macrocode}
% \end{macro}
%
% \iffalse
%</package>
% \fi
%
% \clearpage
% \begin{thebibliography}{99}
%   \bibitem{TLC2}
%   Frank Mittelbach and Michel Goossens:\\
%   \newblock {\em The {\LaTeX} Companion (2nd.~Ed.)},\\
%   \newblock Addison-Wesley, 2004.
%
%   \bibitem{Anne}
%   Anne Br\"uggemann-Klein:\\
%   \emph{Einf\"uhrung in die Dokumentverarbeitung},\\
%   B.G. Teubner, Stuttgart, 1989
%
%   \bibitem{hyperref}
%   Sebastian Rahtz \& Heiko Oberdiek:\\
%   \href{http://www.ctan.org/pkg/hyperref}%
%        {\emph{Hypertext marks in \LaTeX}},\\
%   November 12, 2007
%
%   \bibitem{refcount}
%   Heiko Oberdiek:\\
%   \href{http://www.ctan.org/pkg/refcount}%
%        {\emph{The refcount package}},\\
%   2006/02/20
%
%   \bibitem{threeparttable}
%   Donald Arseneau:\\
%   \href{http://www.ctan.org/pkg/threeparttable}%
%        {\emph{Three part tables: title, tabular environment, notes}},\\
%   2003/06/13
% \end{thebibliography}
%
% \iffalse
% --------------------------------------------------------------------------- %
% \fi
%
% \clearpage
% \Finale
%
\endinput
