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+% \iffalse meta-comment
+%
+% This is file `caption2.dtx'.
+%
+% Copyright (C) 1994-2005 Axel Sommerfeldt (caption@sommerfee.de)
+%
+% --------------------------------------------------------------------------
+%
+% 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, caption.xml, and anleitung.tex and the derived files
+% caption.sty, caption2.sty, caption3.sty, and manual.tex.
+%
+% \fi
+% \CheckSum{843}
+%
+% \iffalse
+%<*driver>
+\NeedsTeXFormat{LaTeX2e}[1994/12/01]
+\documentclass{ltxdoc}
+\setlength\parindent{0pt}
+\setlength\parskip{\smallskipamount}
+%
+\ifx\pdfoutput\undefined\else
+ \ifcase\pdfoutput\else
+ \usepackage{mathptmx,courier}
+ \usepackage[scaled=0.90]{helvet}
+ \fi
+\fi
+%
+\usepackage{caption2}[2004/04/16]
+%
+%<+driver>\OnlyDescription
+%
+\begin{document}
+ \DocInput{caption2.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\package\puresf\def\thispackage{\package{caption2}}
+% \let\env\purett \let\opt\purett
+%
+% \GetFileInfo{caption2.sty}
+% \title{The \thispackage\ package\thanks{This package has version number
+% \fileversion, last revised \filedate.}}
+% \author{Axel Sommerfeldt\\\texttt{caption@sommerfee.de}}
+% \date{2005/11/02}
+% \maketitle
+%
+% \changes{v2.0}{ 9 Oct 95}{New experimental version: Many new commands and features}
+% \changes{v2.0}{ 9 Oct 95}{Support of the longtable package added}
+% \changes{v2.1}{20 Feb 02}{Revised: New commands and options}
+% \changes{v2.1}{26 Feb 02}{Adapted to version 2.1 of the subfigure package}
+% \changes{v2.1a}{12 Nov 03}{Some minor bug fixes and improved compatibility to v2.0}
+% \changes{v2.1b}{16 Apr 04}{Some minor bug fixes and improved compatibility to v2.0}
+% \changes{v2.1c}{10 May 04}{Some minor bug fixes and improved compatibility to v2.0}
+% \changes{v2.1d}{ 3 Oct 05}{Some superfluous brackets removed; warning added}
+%
+% \providecommand\LaTeXcomp{The \LaTeX{} Companion}
+%
+% \section*{This package is obsolete!}
+%
+% The \package{caption2} package used to be an experimental side-version of
+% the regular \package{caption} package. It was made public as beta test version
+% without documentation in 1995 because of the demand for new features and
+% adaptations to other packages like the \package{longtable} and
+% \package{subfigure} package.
+%
+% Even in the next years I found no time to reintegrate some of the
+% well-tried features into the regular \package{caption} package. So I
+% decided to release a version $2.1$ of the \package{caption2} package in 2002
+% instead, which included some minor bug fixes and adaptations to the new
+% version $2.1$ of the \package{subfigure} package. Furthermore I started
+% to write a documentation for this package, but unfortunately did not get
+% very far with this\ldots
+%
+% In 2003 I finally found some (more) time, so a new regular release $3.0$
+% of the \package{caption} package could be build with massive help from
+% Frank Mittelbach\cite{A-W:GMS94} and Steven Cochran\cite{subfigure}.
+% It was released in December 2003 and superseded the neglected
+% \package{caption2} package.
+%
+% {\small (In parallel, Steven Cochran released the \package{subfig} package which
+% superseded the \package{subfigure} package.)}
+%
+% So please don't use this package for new documents. It's old, it's obsolete
+% and it starts to begin smell bad!
+% Please ignore all hints in books or other documents which try to tell you
+% that the \package{caption2} package should be used instead of the
+% \package{caption} package -- these hints are outdated since December 2003.
+%
+% \section*{How to migrate to the regular \package{caption} package?}
+%
+% Usually replacing \package{caption2} by \package{caption} is sufficient
+% because the \package{caption} package emulates most of the options and
+% commands of the \package{caption2} package.
+% If you get some errors or wired results afterwards, please take a closer
+% look at the \package{caption} package documentation which will hopefully
+% help you clearing these problems.
+% If all this should fail you can write me an e-mail asking for help.
+%
+% \section*{What will happen to this package?}
+%
+% The \package{caption2} package is still some kind of supported, that means
+% it will be part of future releases and bugs will still be fixed so existing
+% documents using this package will still compile.
+% But it will \emph{not} be enhanced in the future or adapted to future versions
+% of foreign packages.
+%
+% This means migrating to the actual \package{caption} package should not be
+% necessary for old documents.
+%
+% \StopEventually{}
+%
+% \DoNotIndex{\\,\_,\ ,\@@par}
+% \DoNotIndex{\@classoptionslist,\@currext,\@currname}
+% \DoNotIndex{\@ehc,\@ehd,\@empty,\@expandtwoargs}
+% \DoNotIndex{\@for,\@firstofone,\@firstoftwo}
+% \DoNotIndex{\@gobble,\@gobblefour,\@gobbletwo,\@hangfrom}
+% \DoNotIndex{\@ifnextchar,\@ifstar,\@ifundefined,\@latex@error}
+% \DoNotIndex{\@namedef,\@nameuse}
+% \DoNotIndex{\@onlypreamble,\@parboxrestore,\@plus,\@ptionlist}
+% \DoNotIndex{\@removeelement,\@restorepar,\@secondoftwo,\@setpar}
+% \DoNotIndex{\@tempa,\@tempboxa,\@tempdima,\@tempb,\@tempc}
+% \DoNotIndex{\@undefined,\@unprocessedoptions,\@unusedoptionlist}
+% \DoNotIndex{\p@,\z@}
+% \DoNotIndex{\active,\addtocounter,\addtolength,\advance}
+% \DoNotIndex{\baselineskip,\begin,\begingroup,\bfseries,\bgroup,\box}
+% \DoNotIndex{\catcode,\centering,\changes,\csname,\def,\divide,\do,\downarrow}
+% \DoNotIndex{\edef,\egroup,\else,\empty,\end,\endcsname,\endgraf,\endgroup,\expandafter}
+% \DoNotIndex{\fi,\footnotesize,\global}
+% \DoNotIndex{\hangindent,\hbox,\hfil,\hsize,\hskip,\hspace,\hss}
+% \DoNotIndex{\if,\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,\nobreakspace,\noexpand,\noindent,\numberline}
+% \DoNotIndex{\normalsize,\or,\par,\parbox,\parfillskip}
+% \DoNotIndex{\parindent,\parskip,\prevdepth,\protect,\protected@edef,\providecommand}
+% \DoNotIndex{\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{\undefined,\unvbox,\uparrow,\upshape,\usebox,\usepackage}
+% \DoNotIndex{\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{\ProcessOptions,\ProvidesPackage}
+%
+% \clearpage
+%
+% \section{The Implementation}
+% \iffalse
+%<*package>
+% \fi
+%
+% \subsection{Identificaton}
+%
+% \begin{macrocode}
+\NeedsTeXFormat{LaTeX2e}[1994/12/01]
+\ProvidesPackage{caption2}[2005/10/03 v2.1d Customising captions (AS)]
+%\PackageWarning{caption2}{THIS PACKAGE IS OBSOLETE, PLEASE USE caption INSTEAD}
+% \end{macrocode}
+%
+% \subsection{Preliminary declarations}
+%
+% \begin{macro}{\captionfont}
+% \begin{macro}{\captionlabelfont}
+% \cs{captionfont} and \cs{captionlabelfont} will hold the font specifications for the caption.
+% \begin{macrocode}
+\newcommand*\captionfont{}
+\newcommand*\captionlabelfont{}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\captionlabeldelim}
+% \begin{macro}{\captionlabelsep}
+% \cs{captionlabeldelim} \& \cs{captionlabelsep} will hold the iterim
+% space between caption label and text.
+% (\cs{captionlabeldelim} will be typeset within \cs{captionlabelfont},
+% \cs{captionlabelsep} not.)
+% \begin{macrocode}
+\newcommand*\captionlabeldelim{}
+\newcommand*\captionlabelsep{}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\captionsize}
+% The macro \cs{captionsize} is obsolete since v1.4 of the \textsf{caption} package,
+% but we still support it to provide backward compatibility.
+% \begin{macrocode}
+\newcommand*\captionsize{}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\captionmargin}
+% \begin{macro}{\captionwidth}
+% \begin{macro}{\ifcaptionwidth}
+% Either \cs{captionmargin} (with specifies an extra margin) or \cs{captionwidth}
+% (with specifies an explicit width) can be set, therefore we need the flag \cs{ifcaptionwidth}
+% to determine with parameter we should pay attention to.
+% \begin{macrocode}
+\newdimen\captionmargin
+\newdimen\captionwidth
+\newif\ifcaptionwidth
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\captionindent}
+% \cs{captionindent} will be used in caption style \texttt{indent} and specifies the indention
+% after the first line.
+% \begin{macrocode}
+\newdimen\captionindent
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\ifcaptionlabel}
+% \begin{macro}{\ifonelinecaptions}
+% \begin{macro}{\ifignoreLTcapwidth}
+% More flags. If \cs{ifcaptionlabel} is not set the caption label should be suppressed;
+% we need this flag to support the \cs{caption*} command.
+% If \cs{ifonelinecaptions} is set we support the \LaTeX\ base style 'one line captions',
+% that means the caption will be typeset centered if it fits to one line.
+% If \cs{ifignoreLTcapwidth} is set we ignore the \cs{LTcapwidth} of \textsf{longtable}.
+% \changes{v2.1}{20 Feb 02}{New ifs \cs{ifcaptionlabel} and \cs{ifignoreLTcapwidth}}
+% \begin{macrocode}
+\newif\ifcaptionlabel\captionlabeltrue
+\newif\ifonelinecaptions
+\newif\ifignoreLTcapwidth
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\setcaptionmargin}
+% \begin{macro}{\setcaptionwidth}
+% User-friendly commands to set the caption margin resp.\ width.
+% Note that they additionally set the \cs{ifcaptionwidth} flag.
+% \begin{macrocode}
+\newcommand*\setcaptionmargin{%
+ \captionwidthfalse
+ \setlength\captionmargin}
+\newcommand*\setcaptionwidth{%
+ \captionwidthtrue
+ \setlength\captionwidth}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\normalcaptionparams}
+% \cs{normalcaptionparams} resets all caption related parameters to it's normal default values.
+% \cs{captionfont} will be set to \cs{captionsize} so setting the obsolete \cs{captionsize} will still work.
+% Same story with \cs{captiondelim} and the obsolete \cs{captionlabeldelim}.
+% \changes{v2.1}{29 Jan 02}{New command \cs{normalcaptionparams}}
+% \begin{macrocode}
+\newcommand*\normalcaptionparams{%
+ \let\captionsize\@empty
+ \renewcommand*\captionfont{\captionsize}%
+ \let\captionlabelfont\@empty
+ \renewcommand*\captionlabeldelim{:}%
+ \renewcommand*\captionlabelsep{\space}%
+ \setcaptionmargin\z@\setlength\captionindent\z@
+ \onelinecaptionstrue}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\caption@eh}
+% Some commands will produce an error message, use this as help text.
+% \begin{macrocode}
+\newcommand*\caption@eh{%
+ If you do not understand this error, please take a closer look\MessageBreak
+ at the documentation of the `caption2' package.\MessageBreak
+ \@ehc}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\defcaptionstyle}
+% \begin{macro}{\newcaptionstyle}
+% \begin{macro}{\renewcaptionstyle}
+% These macros will define a new caption style. \cs{newcaptionstyle} and \cs{renewcaptionstyle}
+% will additionally check if the caption style already exists or not.
+% \begin{macrocode}
+\newcommand*\defcaptionstyle[1]{%
+ \@namedef{caption@@#1}}
+%
+\newcommand*\newcaptionstyle[1]{%
+ \expandafter\ifx\csname caption@@#1\endcsname\relax
+ \expandafter\defcaptionstyle
+ \else
+ \PackageError{caption2}{Caption style `#1' already defined}{\caption@eh}%
+ \expandafter\@gobbletwo
+ \fi
+ {#1}}
+%
+\newcommand*\renewcaptionstyle[1]{%
+ \expandafter\ifx\csname caption@@#1\endcsname\relax
+ \PackageError{caption2}{Caption style `#1' undefined}{\caption@eh}%
+ \expandafter\@gobbletwo
+ \else
+ \expandafter\defcaptionstyle
+ \fi
+ {#1}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\dummycaptionstyle}
+% This macro will also define a new caption style, but a one which is based on the
+% actual set caption style. Therefore you can't set a caption style made with this
+% command with \cs{captionstyle} -- we check this to avoid an endless recursion.
+% \begin{macrocode}
+\newcommand*\dummycaptionstyle[2]{%
+ \defcaptionstyle{#1}{%
+ \expandafter\ifx\csname caption@@\caption@style\expandafter\endcsname%
+ \csname caption@@#1\endcsname
+ \PackageError{caption2}{You can't use the caption style `#1' directy}{%
+ The caption style `#1' is only a dummy and does not really exists.%
+ \MessageBreak You have to redefine it (with \protect\renewcaptionstyle)
+ before you can select\MessageBreak it with \protect\captionstyle.
+ \space\caption@eh}%
+ \else
+ #2\usecaptionstyle\caption@style
+ \fi}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\captionstyle}
+% \cs{captionstyle} sets the actual caption style. It includes a check if the given caption
+% style is defined or not.
+% \begin{macrocode}
+\newcommand*\captionstyle[1]{%
+ \expandafter\ifx\csname caption@@#1\endcsname\relax
+ \PackageError{caption2}{Undefined caption style `#1'}{\caption@eh}%
+ \else
+ \def\caption@style{#1}%
+ \fi}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{style `normal'}
+% \begin{macro}{style `center'}
+% \begin{macro}{style `centerlast'}
+% \begin{macro}{style `flushleft'}
+% \begin{macro}{style `flushright'}
+% \begin{macro}{style `hang'}
+% \begin{macro}{style `indent'}
+% The predefined caption styles `normal', `center', `flushleft', `flushright', `centerlast',
+% `hang', `hang+X', and `indent'. Because they are quite similar they all are based on the macro
+% \cs{caption@make}.
+% \begin{macrocode}
+\newcaptionstyle{normal}{\caption@make{normal}}
+\newcaptionstyle{center}{\caption@make{center}}
+\newcaptionstyle{centerlast}{\caption@make{centerlast}}
+\newcaptionstyle{flushleft}{\caption@make{flushleft}}
+\newcaptionstyle{flushright}{\caption@make{flushright}}
+\newcaptionstyle{hang}{\caption@make{hang}}
+\newcaptionstyle{hang+center}{\caption@make{hang@center}}
+\newcaptionstyle{hang+centerlast}{\caption@make{hang@centerlast}}
+\newcaptionstyle{hang+flushleft}{\caption@make{hang@flushleft}}
+\newcaptionstyle{indent}{\caption@make{indent}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\caption@makecaption}
+% Our predefined caption styles. \cs{caption@makecaption} takes the style
+% name as parameter, it does the common stuff and calls a macro
+% (build out of the style name) to do the uncommon stuff if neccessary.
+% \changes{v2.1}{26 Feb 02}{Renamed from \cs{caption@make} to \cs{caption@makecaption}}
+% \changes{v2.1b}{16 Apr 04}{We offer and use \cs{caption@make}, again}
+% \changes{v2.1c}{10 May 04}{Bugfix: Extra \cs{par} added}
+% \begin{macrocode}
+\newcommand*\caption@makecaption[1]{%
+ \usecaptionmargin
+%
+ \ifcaptionlabel
+ \def\caption@label{%
+ {\captionlabelfont\captionlabel\captionlabeldelim}\captionlabelsep}%
+ \else
+ \let\caption@label\@empty
+ \fi
+%
+ \captionfont
+ \onelinecaption
+ {\caption@label\captiontext}%
+ {\parbox[b]\captionlinewidth{\strut\@nameuse{caption@@@#1}\par}\par}}
+\newcommand*\caption@make{\caption@makecaption}
+% \end{macrocode}
+% \end{macro}
+%
+% \changes{v2.1}{26 Feb 02}{Removed all extra parboxes from caption styles}
+% \changes{v2.1a}{12 Nov 03}{\ldots and put the parbox into \cs{caption@makecaption} instead}
+%
+% \begin{macro}{\caption@@@normal}
+% The `normal' caption style. Just typeset caption (label \& text) as paragraph.
+% \begin{macrocode}
+\newcommand*\caption@@@normal{%
+ \caption@label\captiontext}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\caption@@@center}
+% The `center' caption style. Typeset the caption centered within a parbox.
+% \begin{macrocode}
+\newcommand*\caption@@@center{%
+ \centering\caption@label\captiontext}%
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\caption@@@centerlast}
+% The `centerlast' caption style.
+% The idea how to do this was taken from Br\"uggemann-Klein\cite{Anne},
+% it is also mentioned in Kopka\cite[p227]{Kopka-E}.
+% \begin{macrocode}
+\newcommand*\caption@centerlast{%
+ \advance\leftskip by 0pt plus 1fil%
+ \advance\rightskip by 0pt plus -1fil%
+ \parfillskip0pt plus 2fil\relax}
+%
+\newcommand*\caption@@@centerlast{%
+ \caption@centerlast\caption@label\captiontext}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\caption@@@flushleft}
+% The `flushleft' caption style. Typeset the caption raggedright within a parbox.
+% \begin{macrocode}
+\newcommand*\caption@@@flushleft{%
+ \raggedright\caption@label\captiontext}%
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\caption@@@flushright}
+% The `flushright' caption style. Typeset the caption raggedleft within a parbox.
+% \begin{macrocode}
+\newcommand*\caption@@@flushright{%
+ \raggedleft\caption@label\captiontext}%
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\caption@@@hang}
+% \begin{macro}{\caption@hangplus}
+% The `hang' caption style.
+% This code was taken from \LaTeXcomp\cite[p155]{A-W:GMS94} and modified.
+% \begin{macrocode}
+\newcommand*\caption@@@hang{%
+ \sbox\@tempboxa{\caption@label}%
+ \hangindent\wd\@tempboxa\noindent
+ \usebox\@tempboxa\caption@hangplus\captiontext}
+%
+\newcommand*\caption@hangplus{}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\caption@@@hang@center}
+% The `hang+flushleft' caption style.
+% \begin{macrocode}
+\newcommand*\caption@@@hang@center{%
+ \let\caption@hangplus\centering\caption@@@hang}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\caption@@@hang@centerlast}
+% The `hang+flushleft' caption style.
+% \begin{macrocode}
+\newcommand*\caption@@@hang@centerlast{%
+ \let\caption@hangplus\caption@centerlast\caption@@@hang}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\caption@@@hang@flushleft}
+% The `hang+flushleft' caption style.
+% \begin{macrocode}
+\newcommand*\caption@@@hang@flushleft{%
+ \let\caption@hangplus\raggedright\caption@@@hang}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\caption@@@indent}
+% The `indent' caption style. Is is quite like the `hang' style but the
+% indention is given as \cs{captionindent}.
+% \begin{macrocode}
+\newcommand*\caption@@@indent{%
+ \hangindent\captionindent\noindent
+ \caption@label\captiontext}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{Options}
+%
+% \begin{macro}{normal}
+% \begin{macro}{center}
+% \begin{macro}{centerlast,anne}
+% \begin{macro}{flushleft}
+% \begin{macro}{flushright}
+% \begin{macro}{hang,isu}
+% \begin{macro}{indent}
+% These options will set the caption style.
+% (`normal' is the default one.)
+%
+% The options `anne' and `isu' are for
+% backward compatibility only.
+% \begin{macrocode}
+\DeclareOption{normal}{\captionstyle{normal}}
+\DeclareOption{center}{\captionstyle{center}}
+\DeclareOption{centerlast}{\captionstyle{centerlast}}
+\DeclareOption{flushleft}{\captionstyle{flushleft}}
+\DeclareOption{flushright}{\captionstyle{flushright}}
+\DeclareOption{anne}{\ExecuteOptions{centerlast}}
+\DeclareOption{hang}{\captionstyle{hang}}
+\DeclareOption{hang+center}{\captionstyle{hang+center}}
+\DeclareOption{hang+centerlast}{\captionstyle{hang+centerlast}}
+\DeclareOption{hang+flushleft}{\captionstyle{hang+flushleft}}
+\DeclareOption{isu}{\ExecuteOptions{hang}}
+\DeclareOption{indent}{\captionstyle{indent}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{scriptsize}
+% \begin{macro}{footnotesize}
+% \begin{macro}{small}
+% \begin{macro}{normalsize}
+% \begin{macro}{large,Large}
+% These options will set the caption size. We use \cs{g@addto@macro} so more that one
+% option can be set.
+% \begin{macrocode}
+\DeclareOption{scriptsize}{\g@addto@macro\captionsize\scriptsize}
+\DeclareOption{footnotesize}{\g@addto@macro\captionsize\footnotesize}
+\DeclareOption{small}{\g@addto@macro\captionsize\small}
+\DeclareOption{normalsize}{\g@addto@macro\captionsize\normalsize}
+\DeclareOption{large}{\g@addto@macro\captionsize\large}
+\DeclareOption{Large}{\g@addto@macro\captionsize\Large}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{up,it,sl,sc}
+% \begin{macro}{md,bf}
+% \begin{macro}{rm,sf,tt}
+% These options will set the caption label.
+% \begin{macrocode}
+\DeclareOption{up}{\g@addto@macro\captionlabelfont\upshape}
+\DeclareOption{it}{\g@addto@macro\captionlabelfont\itshape}
+\DeclareOption{sl}{\g@addto@macro\captionlabelfont\slshape}
+\DeclareOption{sc}{\g@addto@macro\captionlabelfont\scshape}
+\DeclareOption{md}{\g@addto@macro\captionlabelfont\mdseries}
+\DeclareOption{bf}{\g@addto@macro\captionlabelfont\bfseries}
+\DeclareOption{rm}{\g@addto@macro\captionlabelfont\rmfamily}
+\DeclareOption{sf}{\g@addto@macro\captionlabelfont\sffamily}
+\DeclareOption{tt}{\g@addto@macro\captionlabelfont\ttfamily}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{oneline}
+% \begin{macro}{nooneline}
+% These options will set the `oneline' flag.
+% (`oneline' is the default.)
+% \begin{macrocode}
+\DeclareOption{oneline}{\onelinecaptionstrue}
+\DeclareOption{nooneline}{\onelinecaptionsfalse}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\caption@package}
+% A helper macro, a value of 1 within parameter \#2 will activate the support
+% of the package given in parameter \#1, a value of 0 will deactivate it.
+% \begin{macrocode}
+\newcommand*\caption@package[1]{\@namedef{caption@pkt@#1}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{float}
+% \begin{macro}{longtable}
+% \begin{macro}{subfigure}
+% \changes{v2.1}{19 Feb 02}{New options for interaction with other packages}
+% These options will enable or suppress the support of the packages
+% \textsf{float}, \textsf{longtable}, and \textsf{subfigure}.
+% \begin{macrocode}
+\DeclareOption{float}{\caption@twozerofalse\caption@package{float}{1}}
+\DeclareOption{longtable}{\caption@twozerofalse\caption@package{longtable}{1}}
+\DeclareOption{subfigure}{\caption@twozerofalse\caption@package{subfigure}{1}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{none}
+% \begin{macro}{all}
+% These options will enable or suppress the support of all the above packages.
+% \begin{macrocode}
+\DeclareOption{none}{\caption@twozerofalse
+ \caption@package{float}{0}\caption@package{longtable}{0}%
+ \caption@package{subfigure}{0}}
+\DeclareOption{all}{\ExecuteOptions{float,longtable,subfigure}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{ruled}
+% \begin{macro}{boxed}
+% The option `ruled' introduced in \textsf{caption} v1.2 is obsolete now, but
+% we will still support it. The option `boxed' was introduced in version 2.0
+% and is obsolete now, too.
+% \begin{macrocode}
+\newif\ifcaption@ruled
+\DeclareOption{ruled}{\caption@ruledtrue}
+\DeclareOption{boxed}{}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{ignoreLTcapwidth}
+% This option will make the caption code ignore the setting of \cs{LTcapwidth}
+% and use the setting of \cs{setcaptionmargin} or \cs{setcaptionwidth} instead.
+% \begin{macrocode}
+\DeclareOption{ignoreLTcapwidth}{\ignoreLTcapwidthtrue}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{debug}
+% This option will put additional debug information in the log file.
+% \begin{macrocode}
+\DeclareOption{debug}{\caption@debugtrue}
+% \end{macrocode}
+% \end{macro}
+%
+% That's it! Now set the default values and start processing the options.
+% (If \cs{caption@twozero} is set to true (default) we will emulate the package
+% load algorithm of \textsf{caption} v2.0: If the package is already loaded
+% patch it, otherwise do nothing.)
+% \changes{v2.1}{19 Feb 02}{\cs{ProcessOptions} changed to \cs{ProcessOptions*}}
+% \begin{macrocode}
+\newif\ifcaption@debug
+\newif\ifcaption@twozero
+\normalcaptionparams
+\ExecuteOptions{none,normal}
+\caption@twozerotrue
+\ProcessOptions*
+\ifcaption@twozero
+ \PackageInfo{caption2}{Running in caption2 v2.0 compatibility mode}
+\fi
+% \end{macrocode}
+%
+% \subsection{More declarations}
+%
+% \begin{macro}{\captionof}
+% \begin{macro}{\captionof*}
+% \cs{captionof} resp.\ \cs{captionof*} will just set \cs{@captype} and do the normal
+% \cs{caption} resp.\ \cs{caption*}, so we can also typeset captions outside floating
+% environments.
+% \changes{v2.1}{19 Feb 02}{New commands \cs{captionof} and \cs{captionof*}}
+% \begin{macrocode}
+\def\captionof{\@ifstar{\caption@of{\caption*}}{\caption@of\caption}}
+\newcommand*\caption@of[2]{\def\@captype{#2}#1}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\abovecaptionskip}
+% \begin{macro}{\belowcaptionskip}
+% Not all document classes define \cs{abovecaptionskip} and \cs{belowcaptionskip}
+% (like \textsf{ucthesis}), so we do it here if not already done.
+% \changes{v2.1}{19 Feb 02}{\cs{abovecaptionskip} and \cs{belowcaptionskip} will be defined if neccessary}
+% \begin{macrocode}
+\@ifundefined{abovecaptionskip}{%
+ \newlength\abovecaptionskip\setlength\abovecaptionskip{10\p@}}{}
+\@ifundefined{belowcaptionskip}{%
+ \newlength\belowcaptionskip\setlength\belowcaptionskip{0\p@}}{}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\captionlinewidth}
+% \changes{v2.1}{26 Feb 02}{Renamed from \cs{realcaptionwidth} to \cs{captionlinewidth}}
+% \changes{v2.1a}{12 Nov 03}{We offer \cs{realcaptionwidth}, again}
+% \begin{macro}{\captionlabel}
+% \begin{macro}{\captiontext}
+% These values are only set and used within the caption code itself.
+% \cs{captionlinewidth} will be set to the given vertical space for the caption,
+% normally this is \cs{linewidth}. (This value was called \cs{realcaptionwidth}
+% within \thispackage\ \mbox{2.0}, so we will offer this, too.)
+%
+% \cs{captionlabel} and \cs{captiontext} will be set to the caption label
+% resp.\ the caption text.
+% (Because \cs{captionlabel} and \cs{captiontext} will be locally defined with
+% \cs{def} we do not need to define them here.)
+% \begin{macrocode}
+\newdimen\captionlinewidth
+\newdimen\realcaptionwidth
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\usecaptionmargin}
+% A helper macro for caption style authors:
+% It calculates \cs{leftskip} and \cs{rightskip} out of
+% \cs{captionlinewidth} and \cs{captionmargin} resp.\ \cs{captionwidth}.
+% Also \cs{captionlinewidth} will be corrected to the appropriate value.
+% \begin{macrocode}
+\newcommand*\usecaptionmargin{%
+ \ifcaptionwidth
+ \leftskip\captionlinewidth
+ \advance\leftskip by -\captionwidth
+ \divide\leftskip by 2
+ \rightskip\leftskip
+ \captionlinewidth\captionwidth
+ \else
+ \leftskip\captionmargin
+ \rightskip\captionmargin
+ \advance\captionlinewidth by -2\captionmargin
+ \fi
+ \realcaptionwidth\captionlinewidth}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\onelinecaption}
+% This macro definition helps setting captions the \LaTeX\ base classes way:
+% If \cs{ifonelinecaptions} is set and the 1st argument fits within \cs{captionlinewidth},
+% we typeset it centered -- otherway we typeset the 2nd argument.
+% (We use the savebox \cs{@tempboxa} as helper for this.)
+% \begin{macrocode}
+\newcommand\onelinecaption[1]{%
+ \let\next\@firstofone
+ \ifonelinecaptions
+ \sbox\@tempboxa{#1}%
+ \ifdim\wd\@tempboxa >\captionlinewidth
+ \else
+ \def\next{{\centering\usebox\@tempboxa\par}\@gobble}%
+ \fi
+ \fi\next}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\usecaptionstyle}
+% First we check if we are inside a caption -- if \cs{captiontext} is undefined we are not.
+% If we are we call the appropriate caption definition.
+%
+% \changes{v2.1b}{16 Apr 04}{Missing percent added (and extra space removed)}
+% \begin{macrocode}
+\newcommand*\usecaptionstyle[1]{%
+ \@ifundefined{captiontext}{%
+ \PackageError{caption2}{You can't use \protect#1
+ in normal text}{The usage of \protect#1 is only
+ allowed inside code declared with\MessageBreak \protect\defcaptionstyle,
+ \protect\newcaptionstyle \space or \protect\renewcaptionstyle.
+ \space\caption@eh}
+ }{%
+ \@ifundefined{caption@@#1}%
+ {\PackageError{caption2}{Caption style `#1' undefined}{\caption@eh}}%
+ {\@nameuse{caption@@#1}}%
+ }}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\@makecaption}
+% This is the heart of the \thispackage\ package -- the redefinition of the
+% core caption code. It was taken from the \LaTeXe\ standard classes and modified.
+% It's very easy -- apart from using \cs{abovecaptionskip} and \cs{belowcaptionskip}
+% we just set \cs{captionlinewidth}, \cs{captionlabel} and \cs{captiontext}
+% to its appropriate values and using the code of the actual caption style via
+% \cs{usecaptionstyle}.
+% \begin{macrocode}
+\renewcommand\@makecaption[2]{%
+ \vskip\abovecaptionskip
+ \captionlinewidth\hsize
+ \realcaptionwidth\hsize
+ \def\captionlabel{#1}%
+ \def\captiontext{#2}%
+ \usecaptionstyle\caption@style
+ \vskip\belowcaptionskip}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{Support of other packages}
+%
+% \begin{macro}{\caption@package}
+% This macro will execute the code needed to support the package
+% named within argument \#1. The parameter \#2 is the command
+% which shows if the package is loaded -- it is defined, it is
+% already loaded, otherwise not. The parameter \#3 contains code
+% which will be executed if no support is required -- this is for
+% cleanup purposes. The final parameter \#4 contains the code itself.
+% \changes{v2.1c}{9 May 04}{Compatibility warning removed}
+% \begin{macrocode}
+\renewcommand*\caption@package[3]{%
+ \if1\@nameuse{caption@pkt@#1}%
+ \@ifundefined{#2}%
+ {\let\next\AtBeginDocument}%
+ {\let\next\@firstofone}%
+ \else\ifcaption@twozero
+ \@ifundefined{#2}%
+ {#3\let\next\@gobble}%
+ {\let\next\@firstofone}%
+ \else
+ #3\let\next\@gobble
+ \fi\fi
+ \expandafter\let\csname caption@pkt@#1\endcsname\undefined
+ \ifcaption@debug
+ \ifx\next\@gobble\PackageInfo{caption2}{#1 => gobble}%
+ \else\ifx\next\@firstofone\PackageInfo{caption2}{#1 => firstofone}%
+ \else\ifx\next\AtBeginDocument\PackageInfo{caption2}{#1 => AtBeginDocument}%
+ \fi\fi\fi
+ \fi
+ \next}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsubsection{Support of the \puresf{float} package}
+%
+% \begin{macrocode}
+\caption@package{float}{floatc@plain}{}{%
+ \ifx\floatc@plain\relax
+ \PackageWarning{caption2}{%
+ Option `float' was set but there is no float package loaded}
+ \else
+ \PackageInfo{caption2}{float package v1.2 (or newer) detected}
+% \end{macrocode}
+%
+% \begin{macro}{\caption@floatc}
+% First we define a helper macro to typeset the caption via \cs{usecaptionstyle},
+% the 1st parameter is the caption style name,
+% the 2nd and 3rd are the caption label and text.
+%
+% \textsf{caption2} has the goal not to modify the output just by
+% loading it (without options), therefore we have to be tricky here to
+% support \cs{@fs@cfont} which is in fact the same as our \cs{captionlabelfont}.
+% So we test if a \cs{captionlabelfont} has been set by the user -- if not
+% \cs{@fs@cfont} will be used, otherwise \cs{captionlabelfont}.
+%
+% \changes{v2.1b}{19 Mar 04}{\cs{realcaptionwidth}$=$\cs{hsize} was missing here}
+% \begin{macrocode}
+ \newcommand\caption@floatc[3]{%
+ \ifx\captionlabelfont\@empty
+ \let\captionlabelfont\@fs@cfont
+ \fi
+ \captionlinewidth\hsize
+ \realcaptionwidth\hsize
+ \def\captionlabel{#2}%
+ \def\captiontext{#3}%
+ \usecaptionstyle{#1}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\floatc@plain}
+% Now we can redefine the caption code of the \textsf{float} package.
+% Here we redefine \cs{floatc@plain} to use our caption code, so
+% \texttt{plain} and \texttt{boxed} float types will use the actual
+% caption style set by the user.
+% \begin{macrocode}
+ \renewcommand*\floatc@plain{\caption@floatc{\caption@style}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\floatc@ruled}
+% The support of the \texttt{ruled} float type is a little
+% more complex. First we define a caption style `ruled' so the end-user
+% can change this caption style afterwards. If the (obsolete) option
+% `ruled' is set, we define it in a \textsf{caption} v1.x compatible way,
+% otherwise we define it in a \textsf{float} compatible way.
+%
+% Then we redefine \cs{floatc@ruled} so the caption style `ruled' will
+% be used.
+% \begin{macrocode}
+ \ifcaption@ruled
+ \dummycaptionstyle{ruled}{\onelinecaptionsfalse\setcaptionmargin{\z@}}%
+ \else
+ \newcaptionstyle{ruled}{%
+ \ifcaptionlabel
+ {\@fs@cfont\captionlabel}\space%
+ \fi\captiontext\par}%
+ \fi
+%
+ \renewcommand*\floatc@ruled{\caption@floatc{ruled}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\caption@of}
+% Typesetting captions outside floats is not so easy with redefined floats,
+% because
+% \begin{itemize}
+% \item The caption code of the \textsf{float} package needs not only
+% \cs{@captype} defined, but \cs{@fs@capt} (the command which will typeset the
+% caption itself) either.
+% \item The caption is only saved within a \cs{vbox}, so the \textsf{float}
+% package can typeset the caption later at it's float style specific place
+% (that means at top or at the bottom of the float).
+% \end{itemize}
+%
+% Here is the new code: First we check if it's a restyled float by checking if
+% \cs{fst@<floattype>} is defined. If yes, we use this command (it will define
+% \cs{@fs@capt}).
+% Then we execute \cs{@float@setevery}, if it exists (that means we are
+% dealing with the \textsf{float} package 1.3 or newer here).
+% Now comes the basic trick:
+% We redefine the caption typesetting command \cs{@fs@capt}, so it will close
+% the \cs{vbox}, typeset the caption outside the vbox and finally start the
+% group again so the original \cs{@fs@capt} is happy with closing the group.
+%
+% \begin{macrocode}
+ \renewcommand*\caption@of[2]{\def\@captype{#2}%
+ \@ifundefined{fst@#2}{}{%
+ \@nameuse{fst@#2}%
+ \@ifundefined{@float@setevery}{}{\@float@setevery{#2}}%
+ \let\caption@fs@capt\@fs@capt
+ \let\@fs@capt\caption@of@float}%
+ #1}
+% \end{macrocode}
+%
+% \begin{macrocode}
+ \newcommand\caption@of@float[2]{\egroup
+ \vskip\abovecaptionskip
+ \normalsize\caption@fs@capt{#1}{#2}%
+ \vskip\belowcaptionskip
+ \bgroup}%
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macrocode}
+ \fi}
+% \end{macrocode}
+%
+% \subsubsection{Support of the \puresf{longtable} package}
+%
+% \begin{macrocode}
+\caption@package{longtable}{LT@makecaption}{}{%
+ \ifx\LT@makecaption\relax
+ \PackageWarning{caption2}{%
+ Option `longtable' was set but there is no longtable package loaded}
+ \else
+ \PackageInfo{caption2}{longtable package v3.15 (or newer) detected}
+% \end{macrocode}
+%
+% \begin{macro}{\LT@makecaption}
+% David Carlisle was so kind to introduce a macro called
+% \cs{LT@makecaption} in version 3.15 of the \textsf{longtable}
+% package which typeset the caption and can be easily redefined.
+%
+% This is the original definition:
+% \begin{quote}
+% |\def\LT@makecaption#1#2#3{%|\\
+% | \LT@mcol\LT@cols c{\hbox to\z@{\hss\parbox[t]\LTcapwidth{%|\\
+% | |$\langle$\textit{typeset} |#1{#2: }#3| \textit{as caption}$\rangle$\\
+% | \endgraf\vskip\baselineskip}%|\\
+% | \hss}}}|
+% \end{quote}
+%
+% So we do here:
+% First we define a new (dummy) caption style `longtable',
+% than we redefine \cs{LT@makecaption} so this style will be used.
+% (Remember: |#1| is |\@gobble| in star form of |\caption|,
+% and |\@firstofone| otherwise.)
+% \begin{macrocode}
+ \dummycaptionstyle{longtable}{}
+%
+ \renewcommand\LT@makecaption[3]{%
+ \LT@mcol\LT@cols c{\hbox to\z@{\hss\parbox[t]\hsize{%
+ \ifignoreLTcapwidth
+ \else
+ \setcaptionwidth\LTcapwidth
+ \fi
+ \captionlinewidth\hsize
+ \realcaptionwidth\hsize
+ \captionlabelfalse#1\captionlabeltrue
+ \def\captionlabel{#2}%
+ \def\captiontext{#3}%
+ \usecaptionstyle{longtable}%
+ \endgraf\vskip\baselineskip}%
+ \hss}}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macrocode}
+ \fi}
+% \end{macrocode}
+%
+% \subsubsection{Support of the \puresf{subfigure} package}
+%
+% Some of the following code will not work within \cs{if},
+% because of the (yet) undefined \cs{if}\textit{xxx}s. So we simply define
+% the critical code within the helper commands \cs{setsubcapstyle}
+% and \cs{caption@makesubcaption} already here.
+%
+% \begin{macro}{\setsubcapstyle}
+% This sets the subcaptionstyle to a appropriate value.
+%
+% If \cs{ifsubcapraggedright} is undefined (it was introduced
+% into v2.1 of the \textsf{subfigure} package) we define it first.
+% \begin{macrocode}
+\newcommand*\setsubcapstyle{%
+ \@ifundefined{subcapraggedrightfalse}{%
+ \newif\ifsubcapraggedright}{}%
+ \ifsubcaphang
+ \ifsubcapcenter
+ \subcapstyle{hang+center}%
+ \else\ifsubcapcenterlast
+ \subcapstyle{hang+centerlast}%
+ \else\ifsubcapraggedright
+ \subcapstyle{hang+flushleft}%
+ \else
+ \subcapstyle{hang}%
+ \fi\fi\fi
+ \else\ifsubcapcenter
+ \subcapstyle{center}%
+ \else\ifsubcapcenterlast
+ \subcapstyle{centerlast}%
+ \else\ifsubcapraggedright
+ \subcapstyle{flushleft}%
+ \else
+ \subcapstyle{normal}%
+ \fi\fi\fi\fi}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\caption@makesubcaption}
+% This will typeset the subcaption.
+% We just set all our \cs{caption}\textit{xxx} values to
+% the values of \cs{subcap}\textit{xxx} and typeset the
+% caption like \textsf{subfigure} within a \cs{hbox},
+% but with the help of \cs{usecaptionstyle}.
+%
+% But this is not as easy as it seems. We typeset the caption like this:
+% \begin{quote}
+% |\captionfont|\\
+% | {\capionlabelfont\captionlabel\captionlabeldelim}%|\\
+% |\captionlabelsep\captiontext|
+% \end{quote}
+% Within \textsf{subfigure} 2.0 the caption will be set quite similar to:
+% \begin{quote}
+% |\subcapsize|\\
+% | {\subcaplabelfont\captionlabel}%|\\
+% |\space\captiontext|
+% \end{quote}
+% But within \textsf{subfigure} 2.1 this has changed to:
+% \begin{quote}
+% |\subcapsize|\\
+% | {\subcaplabelfont\captionlabel}%|\\
+% |\hskip\subfiglabelskip|\\
+% | {\subcapfont\captiontext}}|
+% \end{quote}
+% So we have to be tricky here: We set \cs{captionlabelfont} to \cs{normalfont} plus
+% \cs{subcapsize} \& \cs{subcaplabelfont}, so the font setting in \cs{captionfont}
+% will not affect the caption label in subfigure captions.
+%
+% Note that \cs{hfil} has changed to \cs{hss} from subfigure 2.0 to 2.1,
+% so we use \cs{caption@subfig@hss} instead. (We will define this later on.)
+% \begin{macrocode}
+\newcommand\caption@makesubcaption[2]{%
+ \renewcommand*\captionfont{\subcapsize\subcapfont}%
+ \renewcommand*\captionlabelfont{\normalfont\subcapsize\subcaplabelfont}%
+ \let\captionlabeldelim\subcaplabeldelim
+ \let\captionlabelsep\subcaplabelsep
+ \ifsubfigcapwidth\captionwidthtrue\else\captionwidthfalse\fi
+ \setlength\captionmargin\subfigcapmargin
+ \setlength\captionwidth\subfigcapwidth
+ \captionindent\subcapindent
+ \ifsubcapnooneline\onelinecaptionsfalse\else\onelinecaptionstrue\fi
+ \hbox to\@tempdima{%
+ \caption@subfig@hss\parbox[t]\@tempdima{%
+ \captionlinewidth\@tempdima
+ \realcaptionwidth\@tempdima
+ \captionlabeltrue
+ \def\captionlabel{#1}%
+ \def\captiontext{\ignorespaces #2}%
+ \usecaptionstyle\caption@substyle}%
+ \caption@subfig@hss}}
+% \end{macrocode}
+% \end{macro}
+%
+% If the subfigure support is not needed, we throw
+% the helper macros in the garbage can.
+%
+% \begin{macrocode}
+\caption@package{subfigure}{@makesubfigurecaption}{%
+ \let\setsubcapstyle\undefined
+ \let\caption@makesubcaption\undefined}{%
+ \ifx\@makesubfigurecaption\relax
+ \PackageWarning{caption2}{%
+ Option `subfigure' was set but there is no subfigure package loaded}
+ \let\setsubcapstyle\undefined
+ \let\caption@makesubcaption\undefined
+ \else
+% \end{macrocode}
+%
+% Some stuff has changed from version 2.0 to 2.1 of the
+% \textsf{subfigure} package, so we make a branch here.
+% If \cs{subcapfont} is undefined we assume v2.0,
+% otherwise we assume v2.1 or newer.
+%
+% \begin{macrocode}
+ \ifx\subcapfont\undefined
+ \PackageInfo{caption2}{subfigure package v2.0 detected}
+% \end{macrocode}
+%
+% \begin{macro}{\subcapfont}
+% We define \cs{subcapfont} here so we can use it later
+% in common code for \textsf{subfigure} v2.0 and v2.1 (or newer).
+% \begin{macrocode}
+ \let\subcapfont\@empty
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\subfigcapwidth}
+% \begin{macro}{\setsubcapmargin}
+% \begin{macro}{\setsubcapwidth}
+% Analogous to \cs{captionwidth}, \cs{setcaptionmargin}, and
+% \cs{setcaptionwidth} we define \cs{subfigcapwidth},
+% \cs{setsubcapmargin}, and \cs{setsubcapwidth}.
+%
+% Note: \cs{subfigcapmargin} is a command in v2.0 of \textsf{subfigure}.
+% So we make \cs{subfigcapwidth} a command, too.
+% \begin{macrocode}
+ \newcommand*\subfigcapwidth{\z@}
+ \newcommand*\setsubcapmargin{%
+ \subfigcapwidthfalse
+ \renewcommand*\subfigcapmargin}
+ \newcommand*\setsubcapwidth{%
+ \subfigcapwidthtrue
+ \renewcommand*\subfigcapwidth}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\subcaplabelsep}
+% Analogous to \cs{captionlabelsep} we define \cs{subcaplabelsep}.
+% \begin{macrocode}
+ \newcommand*\subcaplabelsep{\space}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\caption@subfig@hss}
+% This will be uses within the caption code itself.
+% \begin{macrocode}
+ \let\caption@subfig@hss\hfil
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macrocode}
+ \else
+ \PackageInfo{caption2}{subfigure package v2.1 (or newer) detected}
+% \end{macrocode}
+%
+% \begin{macro}{\subfigcapwidth}
+% \begin{macro}{\setsubcapmargin}
+% \begin{macro}{\setsubcapwidth}
+% Analogous to \cs{captionwidth}, \cs{setcaptionmargin}, and
+% \cs{setcaptionwidth} we define \cs{subfigcapwidth},
+% \cs{setsubcapmargin}, and \cs{setsubcapwidth}.
+%
+% Note: \cs{subfigcapmargin} is a length in v2.1 of \textsf{subfigure}.
+% So we make \cs{subfigcapwidth} a length, too.
+% \begin{macrocode}
+ \newdimen\subfigcapwidth
+ \newcommand*\setsubcapmargin{%
+ \subfigcapwidthfalse
+ \setlength\subfigcapmargin}
+ \newcommand*\setsubcapwidth{%
+ \subfigcapwidthtrue
+ \setlength\subfigcapwidth}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\subcaplabelsep}
+% Analogous to \cs{captionlabelsep} we define \cs{subcaplabelsep}.
+% \begin{macrocode}
+ \newcommand*\subcaplabelsep{\hskip\subfiglabelskip}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\caption@subfig@hss}
+% This will be uses within the caption code itself.
+% \begin{macrocode}
+ \let\caption@subfig@hss\hss
+% \end{macrocode}
+%
+% \end{macro}
+% \begin{macrocode}
+ \fi
+% \end{macrocode}
+%
+% Here starts the common code for \textsf{subfigure} v2.0 and v2.1.
+%
+% \begin{macro}{\ifsubfigcapwidth}
+% \begin{macro}{\subcapindent}
+% \begin{macro}{\subcaplabeldelim}
+% Analogous to \cs{ifcaptionwidth}, \cs{captionindent} \& \cs{captionlabeldelim}
+% we define \cs{ifsubfigcapwidth}, \cs{subcapindent} \& \cs{subcaplabeldelim}
+% \begin{macrocode}
+ \newif\ifsubfigcapwidth
+ \newdimen\subcapindent
+ \newcommand*\subcaplabeldelim{}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\subcapstyle}
+% Analogous to \cs{captionstyle} we define \cs{subcapstyle}
+% and set it (via \cs{setsubcapstyle}) to a appropriate value.
+% \begin{macrocode}
+ \newcommand*\subcapstyle[1]{%
+ \expandafter\ifx\csname caption@@#1\endcsname\relax
+ \PackageError{caption2}{Undefined caption style `#1'}{\caption@eh}%
+ \else
+ \def\caption@substyle{#1}%
+ \fi}
+ \setsubcapstyle
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\@thesubfigure}
+% \begin{macro}{\@thesubtable}
+% The \textsf{subfigure} package makes use of \cs{subcaplabelfont} and
+% \cs{subfiglabelskip} within its \cs{@thesub}\textit{xxx} macros.
+% This is totally in contrast to the way the \textsf{caption2} package
+% handle these settings. So we redefine the \cs{@thesub}\textit{xxx}
+% to be just the plain label and nothing else.
+%
+% \begin{macrocode}
+ \renewcommand*\@thesubfigure{\thesubfigure}
+ \renewcommand*\@thesubtable{\thesubtable}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\@makesubfigurecaption}
+% \begin{macro}{\@makesubtablecaption}
+% Now we are ready to redefine \cs{@makesubfigurecaption}.
+% \begin{macrocode}
+ \let\@makesubfigurecaption\caption@makesubcaption
+ \let\@makesubtablecaption\caption@makesubcaption
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macrocode}
+ \fi}
+% \end{macrocode}
+%
+% That's all folks!
+%
+% \begin{macrocode}
+\let\caption@package\undefined
+% \end{macrocode}
+%
+% \iffalse
+%</package>
+% \fi
+%
+% \begin{thebibliography}{9}
+% \bibitem{float}
+% Anselm Lingnau:
+% \textsl{An Improved Environment for Floats},
+% 2001/11/08
+% \bibitem{longtable}
+% David Carlisle:
+% \textsl{The longtable package},
+% 2000/10/22
+% \bibitem{rotating}
+% Sebastian Rahtz and Leonor Barroca:
+% \textsl{A style option for rotated objects in \LaTeX},
+% 1997/09/26
+% \bibitem{subfigure}
+% Steven Douglas Cochran:
+% \textsl{The subfigure package},
+% 2002/02/14
+% \bibitem{A-W:GMS94}
+% Michel Goossens, Frank Mittelbach and Alexander Samarin:
+% \newblock \textsl{The {\LaTeX} Companion},
+% \newblock Addison-Wesley, Reading, Massachusetts, 1994.
+% \bibitem{Anne}
+% Anne Br\"uggemann-Klein:
+% \textsl{Einf\"uhrung in die Dokumentverarbeitung},
+% B.G. Teubner, Stuttgart, 1989
+% \bibitem{Kopka-E}
+% Helmut Kopka:
+% \textsl{\LaTeX -- Erweiterungsm\"oglichkeiten},
+% 3. \"uberarbeitete Auf\/lage, Addison-Wesley, Bonn, 1991
+% \end{thebibliography}
+%
+% \Finale
+%
+\endinput