2016-01-12 16:26:00

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@@ -1,921 +0,0 @@
-%D \module
-%D   [       file=strc-des,
-%D        version=1997.03.31,
-%D          title=\CONTEXT\ Structure Macros,
-%D       subtitle=Descriptions,
-%D         author=Hans Hagen,
-%D           date=\currentdate,
-%D      copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
-%C
-%C This module is part of the \CONTEXT\ macro||package and is
-%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
-%C details.
-
-\writestatus{loading}{ConTeXt Structure Macros / Descriptions}
-
-%D In order to be more flexible with theorems Aditya Mahajan added
-%D support for titles and endsymbols. At the same time we some more
-%D flexible support for inheriting numbers was added.
-
-%D \startbuffer
-%D \defineenumeration[one]
-%D \defineenumeration[two]   [one]
-%D \defineenumeration[three] [number=one,style=slanted]
-%D \defineenumeration[four]  [three]
-%D \defineenumeration[five]  [three] [number=five]
-%D
-%D \startone   test test 1 \stopone
-%D \starttwo   test test 2 \stoptwo
-%D \startthree test test 3 \stopthree
-%D \startfour  test test 4 \stopfour
-%D \startfive  test test 1 \stopfive
-%D \stopbuffer
-%D
-%D \typebuffer \start \getbuffer \stop
-
-\unprotect
-
-% Dit kan en moet dus anders:
-%
-% \start... :  \vbox\bgroup
-% \stop...  :  \egroup
-% llap enz.
-% geen indent!
-%
-% enz. enz.
-%
-% Op die manier is meer mogelijk en worden \par's geskipt.
-%
-% De macro \??dd#1\s!do\c!commando levert de koppeling tussen
-% \doornummeren en \doordefinieren. Deze constructie is nodig
-% omdat doornummeren geen argument heeft en omdat subnummers
-% niet worden genest binnen het hogere niveau.
-%
-% herimplementeren met \nextbox en \unhbox\unvbox
-
-% list and titles are experiental
-%
-% \definedescription[test] [location=left,hang=4,headalign={right},distance=1em,list=test]
-% \defineenumeration[lemma][title=yes,right=:,textdistance=1em, location=top, titlestyle=\bs,list=lemma]
-% \defineenumeration[ammel][title=yes,right=:,textdistance=.5em,location=left,titlestyle=\it,width=9em]
-%
-% \placelist[enumeration:lemma]
-% \placelist[description:test][width=0pt]
-%
-% \starttest  {something something something}    \input zapf  \stoptest
-% \startlemma {with a title of a certain length} \input tufte \stoplemma
-% \startammel {with a title}                     \input zapf  \stopammel
-%
-% \defineenumeration[lemma][...]
-% \defineenumeration[titledlemma][lemma][title=yes,right=:,text=lemma,list=lemma]
-
-\newbox\@@descriptionbox
-
-\def\descriptionparameter#1{\csname\??dd\currentdescription#1\endcsname}
-
-\def\@@descriptionhandler{\descriptionparameter{\s!do\c!command}}
-
-% \def\normal@@descriptionhandler[#1]#2#3%
-%   {\doattributes
-%      {\??dd\currentdescription}\c!headstyle\c!headcolor
-%      {\descriptionparameter\c!command{#3}}% NAAR BUITENSTE NIVEAU !
-%    \rawreference\s!def{#1}{#2}} % brrr moet in #4
-
-\def\normal@@descriptionhandler[#1]#2#3%
-  {\doattributes
-     {\??dd\currentdescription}\c!headstyle\c!headcolor
-     {\descriptionparameter\c!command{#3}}% NAAR BUITENSTE NIVEAU !
-   \doifsomething{\descriptionparameter\c!list}
-     {\dowritetolist
-        {\descriptionparameter\c!type:\descriptionparameter\c!list}
-        {}{#2}{\currentdescription}}%
-   % beware: with footnotes #2 can be something messy but then #1 is
-   % empty anyway, so we have an extra safeguard
-   \doifsomething{#1}{\rawreference\s!def{#1}{#2}}} % brrr moet in #4
-
-\setvalue{@@description\v!left}%
-  {\@@descriptionhang\@@descriptionleftpure\@@descriptionlefthang}
-
-\setvalue{@@description\v!right}%
-  {\@@descriptionhang\@@descriptionrightpure\@@descriptionrighthang}
-
-\def\@@descriptionhang#1#2%
-  {\processaction
-     [\descriptionparameter\c!hang]
-     [   \v!none=>\let\next#1,%
-               0=>\let\next#1,%
-      \s!unknown=>\let\next#2,%
-      \s!default=>\let\next#1]%
-   \next}
-
-\def\@@descriptionleftpure[#1]#2%
-  {\@@dostartdescription[#1]{\def\\{\crlf}}{#2}%
-   \noindent\ignorespaces
-   \leftskip\@@leftdescriptionskip
-   \rightskip\@@rightdescriptionskip
-   \advance\leftskip \!!widtha
-   \@@makedescriptionpurebox\raggedright
-   \advance\leftskip \!!widthb
-   \llap
-     {\hbox to \leftskip
-        {\hskip\@@leftdescriptionskip
-         \copy\@@descriptionbox\hss}}%
-   \@@dodescription}
-
-\def\@@descriptionrightpure[#1]#2%
-  {\@@dostartdescription[#1]{\def\\{\crlf}}{#2}%
-   \noindent\ignorespaces
-   \leftskip\@@leftdescriptionskip
-   \rightskip\@@rightdescriptionskip
-   \advance\rightskip \!!widtha
-   \@@makedescriptionpurebox\raggedleft
-   \rlap
-     {\hskip\hsize
-      \hskip-\leftskip
-      \hskip-\rightskip
-      \copy\@@descriptionbox
-      \hskip\@@rightdescriptionskip}%
-   \advance\rightskip \!!widthb
-   \@@dodescription}
-
-\def\@@makedescriptionpurebox#1%
-  {\setbox\@@descriptionbox\vtop
-     {\dontcomplain
-      \hsize\!!widtha
-      \leftskip\zeropoint
-      \rightskip\zeropoint
-      #1\setupalign[\descriptionparameter\c!align]%
-      \ifhbox\@@descriptionbox\unhcopy\else\copy\fi\@@descriptionbox}%
-   \ht\@@descriptionbox\strutht
-   \dp\@@descriptionbox\strutdp}
-
-\def\@@descriptionlefthang[#1]#2%
-  {\@@dostartdescription[#1]{\def\\{\crlf}}{#2}%
-   \dontcomplain
-   \advance\!!widtha \!!widthb
-   \hangindent\!!widtha
-   \@@makedescriptionhangbox\raggedright{\advance\rightskip \!!widthb}%
-   \noindent\ignorespaces
-   \llap
-     {\dontshowcomposition
-      \vtop to \zeropoint{\box\@@descriptionbox}}%
-   \@@dodescription}
-
-\def\@@descriptionrighthang[#1]#2%
-  {\@@dostartdescription[#1]{\def\\{\crlf}}{#2}%
-   \dontcomplain
-   \advance\!!widtha \!!widthb
-   \hangindent-\!!widtha
-   \@@makedescriptionhangbox\raggedleft{\advance\leftskip \!!widthb}%
-   \noindent\ignorespaces
-   \rlap
-     {\dontcomplain
-      \dontshowcomposition
-      \scratchdimen\hsize
-      \advance\scratchdimen -\leftskip
-      \advance\scratchdimen -\rightskip
-      \hbox to \scratchdimen
-        {\hss\vtop to \zeropoint{\box\@@descriptionbox}}}%
-   \@@dodescription}
-
-\def\@@makedescriptionhangbox#1#2%
-  {\setbox\@@descriptionbox\vtop % \vbox gaat fout in hang
-     {\forgetall
-      \dontcomplain
-      \hsize\!!widtha
-      #1\setupalign[\descriptionparameter\c!align]#2%
-      \ifhbox\@@descriptionbox\unhcopy\else\copy\fi\@@descriptionbox}%
-   \ht\@@descriptionbox\strutht
-   \dp\@@descriptionbox\strutdp
-   \doifsomething{\descriptionparameter\c!hang}
-     {\doifinsetelse{\descriptionparameter\c!hang}{\v!fit,\v!broad}
-        {\scratchdimen\ht\@@descriptionbox
-         \advance\scratchdimen \dp\@@descriptionbox
-         \doif{\descriptionparameter\c!hang}\v!broad
-           {\advance\scratchdimen .5\strutht}%
-         \getnoflines\scratchdimen
-         \hangafter-\noflines}
-        {\hangafter-\descriptionparameter\c!hang}}}
-
-\setvalue{@@description\v!top}[#1]#2%
-  {%\page[\v!preference]%       % Weg ermee!
-   %\dosomebreak{\goodbreak}%   % Dit is beter en nodig!
-   \dohandlepagebreakX\plusone  % En dit moet het maar worden.
-   \@@dostartdescription[#1]{\let\\=\space}{#2}%
-   \noindent\ignorespaces
-   \copy\@@descriptionbox\par
-   \nobreak
-   \descriptionparameter\c!inbetween
-   \nobreak
-   \@@dodescription}
-
-\def\do@@description#1[#2]#3%
-  {\@@dostartdescription[#2]{\def\\{\crlf}}{#3}%
-   \noindent\ignorespaces % not needed this ignore
-   #1{\ifhbox\@@descriptionbox\unhcopy\else\copy\fi\@@descriptionbox}%
-   \@@dodescription}
-
-\setvalue{@@description\v!inmargin    }{\do@@description\inmargin}
-\setvalue{@@description\v!inleft      }{\do@@description\inleft  }
-\setvalue{@@description\v!inright     }{\do@@description\inright }
-\setvalue{@@description\v!margin      }{\do@@description\inmargin}
-\setvalue{@@description\v!leftmargin  }{\do@@description\inleft  }
-\setvalue{@@description\v!rightmargin }{\do@@description\inright }
-\setvalue{@@description\v!innermargin }{\do@@description\ininner }
-\setvalue{@@description\v!outermargin }{\do@@description\inouter }
-
-\setvalue{@@description\v!serried\v!fit}[#1]#2%
-  {\@@dostartdescription[#1]{\def\\{\crlf}}{#2}%
-   \noindent\ignorespaces
-   \ifhbox\@@descriptionbox\unhcopy\else\copy\fi\@@descriptionbox
-   \hskip\!!widthb % toegevoegd
-   \@@dodescription}
-
-\setvalue{@@description\v!serried\v!broad}[#1]#2%
-  {\@@dostartdescription[#1]{\def\\{\crlf}}{#2}%
-   \noindent\ignorespaces
-   \ifhbox\@@descriptionbox\unhcopy\else\copy\fi\@@descriptionbox
-   \hskip\!!widthb \!!plus .5\!!widthb \!!minus .25\!!widthb
-   \@@dodescription}
-
-\setvalue{@@description\v!serried\v!wide}[#1]#2%
-  {\@@dostartdescription[#1]{\def\\{\crlf}}{#2}%
-   \noindent\ignorespaces
-   \hbox to \!!widtha
-     {\ifhbox\@@descriptionbox\unhcopy\else\copy\fi\@@descriptionbox\hss}%
-   \hskip\!!widthb
-   \ignorespaces
-   \@@dodescription}
-
-\setvalue{@@description\v!serried}[#1]#2%
-  {\processaction
-      [\descriptionparameter\c!width]
-      [     \v!fit=>\let\next\v!fit,
-          \v!broad=>\let\next\v!broad,
-        \s!unknown=>\let\next\v!wide,
-        \s!default=>\let\next\v!broad]%
-   \getvalue{@@description\v!serried\next}[#1]{#2}}
-
-\setvalue{@@description\v!hanging}[#1]#2%
-  {\@@dostartdescription[#1]{\def\\{\crlf}}{#2}% % adds \c!margin to \leftskip
-   \noindent\ignorespaces
-   \advance\leftskip -\leftskipadaption \relax
-   \ifdim\leftskipadaption=\zeropoint
-     \leftskipadaption1.5em % just some default
-     \ifnum\nesteddescriptionstate=\plusone
-       \ifdim\leftskip>\zeropoint \relax
-         \leftskipadaption\leftskip
-       \fi
-     \fi
-   \fi
-   \ifnum\nesteddescriptionstate>\zerocount % was \ifnum\nesteddescriptionstate=\plusone
-     \advance\leftskip \leftskipadaption % but we're already further on
-   \fi
-   \hskip-\leftskipadaption
-   \ifhbox\@@descriptionbox\unhcopy\else\copy\fi\@@descriptionbox
-   \kern\ifdim\!!widthb=\zeropoint .75em\else\!!widthb\fi
-   \ignorespaces
-   \@@dodescription}
-
-%D A bonus definition
-%D
-%D \starttyping
-%D \setupfootnotedefinition[location=command,headcommand=\llap]
-%D \stoptyping
-
-\setvalue{@@description\v!command}#1%
-  {\do@@description{\executeifdefined{\??dd#1\c!headcommand}\framed}{#1}}
-
-%D A new key 'headalign' in definitions.
-
-\def\resetdescriptions % to be used in e.g. footnotes
-  {\chardef\nesteddescriptionstate\zerocount}
-
-\resetdescriptions
-
-\let\@@leftdescriptionskip \!!zeropoint
-\let\@@rightdescriptionskip\!!zeropoint
-
-\def\@@dostartdescription[#1]#2#3%
-  {\descriptionparameter\c!before
-   \begingroup
-   \doadaptleftskip{\descriptionparameter\c!margin}%
-   \showcomposition
-   \!!widthb\descriptionparameter\c!distance\relax
-   \ifdim\!!widthb=\zeropoint\relax
-     \doif{\descriptionparameter\c!width}\v!broad{\!!widthb=1em}%
-   \fi
-   % temp hack, we need to avoid this kind of preprocessing
-   \setbox\@@descriptionbox\hbox % preroll
-     {\forgetall
-      \trialtypesettingtrue
-      \dontcomplain
-      #2% sets \\ to space or \crlf
-      \@@descriptionhandler[#1]{#3}{\begstrut\descriptionparameter\c!text\ignorespaces#3\endstrut}}%
-   % so far
-   \assignwidth
-     \!!widtha
-     {\descriptionparameter\c!width}%
-     {\doifelsenothing{\descriptionparameter\c!sample}%
-        {% preroll can move here (test first)
-         \ifhbox\@@descriptionbox\unhcopy\else\copy\fi \@@descriptionbox}%
-        {\@@descriptionhandler[#1]{#3}{\descriptionparameter\c!text\descriptionparameter\c!sample}}}
-     \!!widthb
-   \setbox\@@descriptionbox\hbox
-     {\forgetall
-      \dontcomplain
-      #2% sets \\ to space or \crlf
-      \doifelse{\descriptionparameter\c!location}\v!serried
-        {\@@descriptionhandler[#1]{#3}{\begstrut\descriptionparameter\c!text#3\endstrut}}
-        {\@@descriptionhandler[#1]{#3}{\vtop{\hsize\!!widtha\advance\hsize-\!!widthb
-           \begstrut\descriptionparameter\c!text\ignorespaces#3\endstrut}}}}%
-   \doifelse{\descriptionparameter\c!aligntitle}\v!no
-     {\edef\@@leftdescriptionskip {\the\leftskip }%
-      \edef\@@rightdescriptionskip{\the\rightskip}}
-     {\ifcase\nesteddescriptionstate
-        \edef\@@leftdescriptionskip {\the\leftskip }%
-        \edef\@@rightdescriptionskip{\the\rightskip}%
-      \fi}%
-   \expanded{\indenting[\descriptionparameter\c!indenting]}%
-   % better a system mode
-   \ifcase\nesteddescriptionstate
-     \chardef\nesteddescriptionstate\plusone
-   \or
-     \chardef\nesteddescriptionstate\plustwo
-   \fi% now happens elsewhere : \noindent\ignorespaces
-   \@@resetdescriptionclosesymbol}
-
-\def\@@stopdescription#1%
-  {\def\currentdescription{#1}%
-   \@@placedescriptionclosesymbol
-   % was \par \dostopattributes % here, else problems with interlinespace and font change
-   \dostopparbasedattributes % == \settrue\parbasedattributes \dostopattributes
-   \endgroup
-   \descriptionparameter\c!after %hm, which currentdescription?
-   \egroup % temporary hack
-   \def\currentdescription{#1}%
-   \dochecknextindentation{\??dd\currentdescription}%
-   \dorechecknextindentation}
-
-\def\@@dodescription
-  {\dostartattributes{\??dd\currentdescription}\c!style\c!color\empty
-   \ignorespaces}
-
-% starters:
-
-\def\@@startdescription[#1][#2]%
-  {\def\currentdescription{#1}%
-   \doifelse{\descriptionparameter\c!title}\v!yes
-  %  {\dowithwargument{\@@startsomedescription{#1}[#2]}} % patched for theorems
-     {\permitspacesbetweengroups
-      \dodoublegroupempty{\@@startsomedescription{#1}[#2]}}
-     {\@@startsomedescription{#1}[#2]{}}}
-
-\def\@@description[#1][#2]%
-  {\def\currentdescription{#1}%
-   \doifelse{\descriptionparameter\c!title}\v!yes
-   % {\dowithwargument{\@@somedescription{#1}[#2]}} % patched for theorems
-     {\permitspacesbetweengroups
-      \dodoublegroupempty{\@@somedescription{#1}[#2]}}
-     {\@@somedescription{#1}[#2]{}}}
-
-% these call:
-
-\def\@@somedescription#1[#2]#3%
-  {\dowithpar
-     {\bgroup\@@makedescription{#1}[#2]{#3}}%
-     {\@@stopdescription{#1}}}
-
-\def\@@startsomedescription#1[#2]#3%
-  {\bgroup % temporary hack
-   \BeforePar{\@@makedescription{#1}[#2]{#3}}%
-   \GotoPar}
-
-% which calls:
-
-\def\@@makedescription#1%
-  {\postponenotes % new, assumes grouping
-   \def\currentdescription{#1}%
-   \executeifdefined
-     {@@description\descriptionparameter\c!location}
-     {\getvalue{@@description\v!left}}}
-
-% \def\@@makedescription#1%
-%   {\def\currentdescription{#1}%
-%    \ifundefined{@@description\descriptionparameter\c!location}%
-%      \letvalue{\??dd#1\c!location}\v!left
-%    \fi
-%    \getvalue{@@description\descriptionparameter\c!location}}
-
-% definitions
-
-\def\setupdescriptions
-  {\dodoubleempty\dosetupdescriptions}
-
-\def\dosetupdescriptions[#1][#2]% % beter: \iffirstargument
-  {\ConvertToConstant\doifelse{#2}{}
-     {\dodosetupdescriptions[][#1]}
-     {\dodoubleargumentwithset\dodosetupdescriptions[#1][#2]}}
-
-\def\dodosetupdescriptions[#1]% [#2]%
-  {\getparameters[\??dd#1]}   % [#2]}
-
-\def\dodefinedescription[#1][#2]%
-  {\copyparameters[\??dd#1][\??dd]
-     [\c!location,\c!headstyle,\c!style,\c!color,\c!headcolor,\c!title,
-      \c!width,\c!hang,\c!sample,\c!before,\c!inbetween,\c!after,\c!margin,
-      \c!indenting,\c!indentnext,\c!align,\c!text,\c!distance,\c!titledistance,\c!command,
-      \c!titleleft,\c!titleright,\c!titlecommand,\c!closesymbol,\c!closecommand]%
-   \getparameters[\??dd#1]
-     [\c!title=\v!yes,\s!do\c!command=\normal@@descriptionhandler,
-      \c!type=\v!description,\c!list=,\c!listtext=,
-      \c!level=,#2]%AM?? Why do we have title=yes here?
-  %\doifvalue{\??dd#1\c!location}\v!top{\doassign[\??dd#1][\c!inbetween=\blank]}%
-   \doifvalue{\??dd#1\c!location}\v!top % we actually need more granularity
-     {\doifnotvalue{\??dd#1\c!inbetween}{\doassign[\??dd#1][\c!inbetween=\blank]}}%
-   \doifvaluesomething{\??dd#1\c!list}
-     {\definelist[\getvalue{\??dd#1\c!type}:\getvalue{\??dd#1\c!list}]}% new
-   \setvalue        {#1}{\dodoubleempty\@@description[#1]}%
-   \setvalue{\e!start#1}{\dodoubleempty\@@startdescription[#1]}%
-   \setvalue{\e!stop #1}{\@@stopdescription{#1}}}
-
-\def\definedescription
-  {\dodoubleemptywithset\dodefinedescription}
-
-\def\currentdescriptionnumber        {\csname\??dd\currentdescription\??dd\c!number\endcsname}
-\def\directcurrentdescriptionnumber#1{\csname\??dd                  #1\??dd\c!number\endcsname}
-
-\ifx\preparednumber\undefined \let\preparednumber\empty \fi
-
-\def\special@@descriptionhandler[#1]#2#3%
-  {\strut
-   \doifelse{\descriptionparameter\c!number}\v!no
-     \!!doneafalse{\doifelse{#1}{-}\!!doneafalse\!!doneatrue}%
-   \chardef\descriptioncoupling\zerocount
-   \iflocation
-     \doifsomething{\descriptionparameter\c!coupling}
-       {\processaction % genereert > of <
-          [\descriptionparameter\c!couplingway]
-          [ \v!local=>\chardef\descriptioncoupling\plusone, % old: default
-           \v!global=>\chardef\descriptioncoupling\plustwo]}% new: global crosslinking
-   \fi
-   \setupnumber % the number is called indirectly
-     [\currentdescriptionnumber]
-     [\c!sectionnumber=\descriptionparameter\c!sectionnumber]%
-   \if!!donea
-     \makeprecedingsectionnumber[\currentdescriptionnumber]%
-     \prepareprefixnumber{\??dd\currentdescription}\precedingsectionnumber\preparednumber
-     \iftrialtypesetting\startlocal\fi
-     \getvalue{\e!next\currentdescription}% tricky but we need the preroll
-     \iftrialtypesetting\stoplocal\fi
-     % \getvalue{\e!next#2#1}%
-     \iflocation
-       \bgroup
-       \letvalue{\??dd\currentdescription\c!sectionnumber}\v!yes
-       \protectconversion
-       \makeprecedingsectionnumber[\currentdescriptionnumber]%
-       \prepareprefixnumber{\??dd\currentdescription}\precedingsectionnumber\preparednumber
-       \ifcase\descriptioncoupling \or
-         \xdef\@@internalenumber{\doshowdnnumber}%
-         \rawreference\s!num{#1:\@@internalenumber}{}%
-       \or
-         \xdef\@@internalenumber{\countervalue{\??dd\c!coupling\currentdescription}}%
-         \rawreference\s!num{\currentdescription:\@@internalenumber}{}%
-       \fi
-       \egroup
-     \fi
-    %\makeprecedingsectionnumber[\currentdescriptionnumber]%
-    %\prepareprefixnumber{\??dd\currentdescription}\precedingsectionnumber\preparednumber
-     \disablepseudocaps   % sorry, uppercase causes troubles
-     \doattributes        % \nocase primitive needed
-       {\??dd\currentdescription}\c!headstyle\c!headcolor % todo: sub as well
-       {\descriptionparameter\c!command
-          {\showdntext
-           \descriptionparameter\c!left
-           \strut\doshowdnnumber
-           \showdntitle{#2}%
-           \descriptionparameter\c!stopper
-           \descriptionparameter\c!right}}%
-     \doifsomething{\descriptionparameter\c!list}
-       {\dowritetolist
-          {\descriptionparameter\c!type:\descriptionparameter\c!list}
-          {\showdnlisttext\doshowdnnumber}{#2}{\currentdescription}}%
-     \iflocation\ifcase\descriptioncoupling \else
-       \edef\localconnection{\descriptionparameter\c!coupling:\@@internalenumber}%
-       \doifreferencefoundelse\localconnection
-         {\in[\localconnection]}\donothing % genereert > of <
-     \fi\fi
-     \doifnot{#1}{-}{\rawreference\s!num{#1}{{\doshowdnnumber}{#2}}}%
-  \else
-     \doattributes{\??dd\currentdescription}\c!headstyle\c!headcolor
-      {\descriptionparameter\c!command
-         {\showdnpuretext
-         \descriptionparameter\c!left
-         \showdntitle{#2}%
-         \descriptionparameter\c!stopper
-         \descriptionparameter\c!right}}%
-     \doifnot{#1}{-}{\rawreference\s!num{#1}{{}{#2}}}%
-   \fi}
-
-\def\showdntitle#1%
-  {\doif{\descriptionparameter\c!title}\v!yes % new, for david antos
-   {\doifsomething{#1}
-     {\doattributes{\??dd\currentdescription}\c!titlestyle\c!titlecolor
-        {\hskip\descriptionparameter\c!titledistance
-         \descriptionparameter\c!titlecommand
-            {\descriptionparameter\c!titleleft
-             \begstrut#1\endstrut
-             \descriptionparameter\c!titleright}}}}}
-
-
-\def\showdnpuretext
-  {\strut\descriptionparameter\c!text} % geen spatie
-
-\def\showdnlisttext
-  {\descriptionparameter\c!listtext} % space in default
-
-\def\showdntext
-  {\doifelsenothing{\descriptionparameter\c!text}
-     {\ignorespaces}
-     {\strut
-      \descriptionparameter\c!text
-      \removeunwantedspaces\fixedspace}}
-
-\def\doshowdnnumber
-  {\getvalue{showdn\descriptionparameter\c!level\c!number}}
-
-% maybe recursive until end condition undefined
-
-\setvalue{showdn\c!number}%
-  {\preparednumber
-   \convertednumber[\currentdescriptionnumber]}
-
-\setvalue{showdn\v!sub\c!number}%
-  {\getvalue{showdn\c!number}%
-   \spr{\descriptionparameter\c!separator}%
-   \convertednumber[\v!sub\currentdescriptionnumber]}
-
-\setvalue{showdn\v!sub\v!sub\c!number}%
-  {\getvalue{showdn\v!sub\c!number}%
-   \spr{\descriptionparameter\c!separator}%
-   \convertednumber[\v!sub\v!sub\currentdescriptionnumber]}
-
-\setvalue{showdn\v!sub\v!sub\v!sub\c!number}%
-  {\getvalue{showdn\v!sub\v!sub\c!number}%
-   \spr{\descriptionparameter\c!separator}%
-   \convertednumber[\v!sub\v!sub\v!sub\currentdescriptionnumber]}
-
-\def\domakednnumber
-  {\descriptionparameter\c!left
-   \strut\doshowdnnumber
-   \descriptionparameter\c!stopper
-   \descriptionparameter\c!right}
-
-\setvalue{\??dd\s!set\v!sub\s!sub\s!sub\c!number}#1%
-  {\edef\@@descriptionnumber{\directcurrentdescriptionnumber{#1}}%
-   \setnumber[\v!sub\v!sub\v!sub\@@descriptionnumber]}
-
-\setvalue{\??dd\s!set\v!sub\s!sub\c!number}#1%
-  {\getvalue{\??dd\s!reset\v!sub\v!sub\v!sub\c!number}{#1}%
-   \setnumber[\v!sub\v!sub\@@descriptionnumber]}
-
-\setvalue{\??dd\s!set\v!sub\c!number}#1%
-  {\getvalue{\??dd\s!reset\v!sub\v!sub\c!number}{#1}%
-   \setnumber[\v!sub\@@descriptionnumber]}
-
-\setvalue{\??dd\s!set\c!number}#1%
-  {\getvalue{\??dd\s!reset\v!sub\c!number}{#1}%
-   \setnumber[\@@descriptionnumber]}
-
-\setvalue{\??dd\s!reset\v!sub\v!sub\v!sub\c!number}#1%
-  {\edef\@@descriptionnumber{\directcurrentdescriptionnumber{#1}}%
-   \resetnumber[\v!sub\v!sub\v!sub\@@descriptionnumber]}
-
-\setvalue{\??dd\s!reset\v!sub\v!sub\c!number}#1%
-  {\getvalue{\??dd\s!reset\v!sub\v!sub\v!sub\c!number}{#1}%
-   \resetnumber[\v!sub\v!sub\@@descriptionnumber]}
-
-\setvalue{\??dd\s!reset\v!sub\c!number}#1%
-  {\getvalue{\??dd\s!reset\v!sub\v!sub\c!number}{#1}%
-   \resetnumber[\v!sub\@@descriptionnumber]}
-
-\setvalue{\??dd\s!reset\c!number}#1%
-  {\getvalue{\??dd\s!reset\v!sub\c!number}{#1}%
-   \resetnumber[\@@descriptionnumber]}
-
-\setvalue{\??dd\e!next\v!sub\v!sub\v!sub\c!number}#1#2%
-  {\edef\@@descriptionnumber{\directcurrentdescriptionnumber{#1}}%
-   \incrementnumber[\v!sub\v!sub\v!sub\@@descriptionnumber]%
-   \rawreference\s!num{#2}{\getvalue{showdn\v!sub\v!sub\v!sub\c!number}}}%
-
-\setvalue{\??dd\e!next\v!sub\v!sub\c!number}#1#2%
-  {\getvalue{\??dd\s!reset\v!sub\v!sub\v!sub\c!number}{#1}%
-   \incrementnumber[\v!sub\v!sub\@@descriptionnumber]%
-   \rawreference\s!num{#2}{\getvalue{showdn\v!sub\v!sub\c!number}}}%
-
-\setvalue{\??dd\e!next\v!sub\c!number}#1#2%
-  {\getvalue{\??dd\s!reset\v!sub\v!sub\c!number}{#1}%
-   \incrementnumber[\v!sub\@@descriptionnumber]%
-   \rawreference\s!num{#2}{\getvalue{showdn\v!sub\c!number}}}%
-
-\setvalue{\??dd\e!next\c!number}#1#2%
-  {\getvalue{\??dd\s!reset\v!sub\c!number}{#1}%
-   \incrementnumber[\@@descriptionnumber]%
-   \rawreference\s!num{#2}{\getvalue{showdn\c!number}}}%
-
-\def\dodosetupenumerations[#1][#2]%
-  {\getparameters[\??dd#1][#2]%
-   \doifdefined{\??dd#1\c!start}
-     {\setupnumber[#1][\c!start=\getvalue{\??dd#1\c!start}]}%
-   \setupnumber[#1][\c!conversion=\getvalue{\??dd#1\c!conversion}]}
-
-\def\dosetupenumerations[#1][#2]%
-  {\ConvertToConstant\doifelse{#2}{}
-     {\getparameters[\??dn][#1]}
-     {\dodoubleargumentwithset\dodosetupenumerations[#1][#2]}}
-
-\def\setupenumerations
-  {\dodoubleempty\dosetupenumerations}
-
-\def\docheckenumerationnumber#1#2#3%
-  {\processaction
-     [\getvalue{\??dd#2\c!number}]
-     [    \v!yes=>\setvalue{\??dd#2\??dd\c!number}{#3},%
-           \v!no=>\setvalue{\??dd#2\??dd\c!number}{#3},%
-      \v!default=>\setvalue{\??dd#2\??dd\c!number}{#3},%
-      \v!unknown=>\letvalue{\??dd#2\??dd\c!number}\commalistelement]}
-
-\def\dododefineenumeration#1#2#3[#4][#5]%
-  {\makecounter{\??dd\c!coupling#1}% new: global cross linking
-   \dodefinedescription[#3#1]%
-     [\c!title=\v!no,\c!level=#3,\c!type=\v!enumeration,\c!list=,%
-      \s!do\c!command=\special@@descriptionhandler]%
-   \copyparameters[\??dd#3#1][\??dn]
-     [\c!location,\c!headstyle,\c!style,\c!color,\c!headcolor,
-      \c!width,\c!number,\c!distance,\c!titledistance,\c!command,
-      \c!sample,\c!hang,\c!align,\c!before,\c!inbetween,\c!after,
-      \c!levels,\c!way,\c!blockway,\c!separator,\c!margin,
-      \c!indenting,\c!indentnext,\c!stopper,\c!sectionnumber,
-      \c!title,\c!titleleft,\c!titleright,\c!titlecommand,\c!closesymbol,\c!closecommand]%
-   \doifassignmentelse{#4}
-     {\getparameters[\??dd#3#1]%
-        [\c!text=#1,\??dd\c!number=#1,\c!conversion=,\c!listtext=#1\space,
-         \c!left=,\c!right=,\c!coupling=,\c!couplingway=\v!local,#4]%
-      \docheckenumerationnumber{#1}{#3#1}{#1}}%
-     {\doifelsenothing{#4}
-        {\getparameters[\??dd#3#1]%
-           [\c!text=#1,\??dd\c!number=#1,\c!conversion=,
-            \c!stopper=,
-            \c!left=,\c!right=,\c!coupling=,\c!couplingway=,#4]%
-         \docheckenumerationnumber{#1}{#3#1}{#1}}%
-        {\copyparameters[\??dd#3#1][\??dd#3#4]
-           [\c!location,\c!headstyle,\c!style,\c!color,\c!headcolor,
-            \c!width,\c!number,\c!distance,\c!titledistance,\c!command,\c!margin,
-            \c!sample,\c!hang,\c!align,\c!before,\c!inbetween,\c!after,
-            \c!stopper,\c!indenting,\c!indentnext,\c!left,\c!right,
-            \c!coupling,\c!couplingway,
-            \c!title,\c!titleleft,\c!titleright,\c!titlecommand,\c!closesymbol,\c!closecommand]%
-         \getparameters[\??dd#3#1]
-           [\c!text=#1,\??dd\c!number=#4,\c!conversion=,#5]%
-         %docheckenumerationnumber{#1}{#3#1}{#4}}}%
-         \docheckenumerationnumber{#1}{#3#1}{\getvalue{\??dd#3#4\??dd\c!number}}}}%
-   \doifvalue{\??dd#3#1\??dd\c!number}{#1}
-     {\definenumber
-        [#3#1]
-        [\c!way=\descriptionparentparameter\c!way,
-         \c!blockway=\descriptionparentparameter\c!blockway,
-         \c!conversion=\descriptionparentparameter\c!conversion,
-         \c!sectionnumber=\descriptionparentparameter\c!sectionnumber]%
-      \doifvalue{\??dd#1\c!levels}{#2}%                              % for
-        {\doifsomething{\getvalue{\??dd#1\c!conversion}}%            % old
-           {\setupnumber[#3#1]                                       % times
-              [\c!conversion=\descriptionparameter\c!conversion]}}}% % sake
-   \doifvaluesomething{\??dd#3#1\c!list}
-     {\definelist[\getvalue{\??dd#3#1\c!type}:\getvalue{\??dd#3#1\c!list}]}% new
-   % should work ...
-   %setvalue{\s!set  #3#1}{\dosetenumerationnumber[#1][#3]}%
-   %setvalue{\s!reset#3#1}{\doresetenumerationnumber[#1][#3]}%
-   %setvalue{\e!next #3#1}{\dotripleempty\donextenumerationnumber[#1][#3]}}
-   % but since we use \currentdescription, we need ...
-   \setevalue{\s!set  #3#1}{\noexpand                       \dosetenumerationnumber  [#1][#3]}%
-   \setevalue{\s!reset#3#1}{\noexpand                       \doresetenumerationnumber[#1][#3]}%
-   \setevalue{\e!next #3#1}{\noexpand\dotripleempty\noexpand\donextenumerationnumber [#1][#3]}}
-
-\def\descriptionparentparameter#1{\csname\??dd\currentdescriptionnumber#1\endcsname}
-
-\def\dodefineenumeration[#1][#2][#3]%
-  {\dododefineenumeration{#1}{1}{}[#2][#3]%
-   \dododefineenumeration{#1}{2}{\v!sub}[#2][#3]%
-   \dododefineenumeration{#1}{3}{\v!sub\v!sub}[#2][#3]%
-   \dododefineenumeration{#1}{4}{\v!sub\v!sub\v!sub}[#2][#3]}
-
-\def\defineenumeration
-  {\dotripleemptywithset\dodefineenumeration}
-
-\def\doresetenumerationnumber[#1][#2]% name level
-  {\getvalue{\??dd\s!reset#2\c!number}{#1}}%
-
-\def\dosetenumerationnumber[#1][#2]% name level
-  {\getvalue{\??dd\s!set#2\c!number}{#1}}%
-
-\def\donextenumerationnumber[#1][#2][#3]% name level reference
-  {\pluscounter{\??dd\c!coupling#1}% new: global crosslinking
-   \getvalue{\??dd\e!next#2\c!number}{#1}{#3}}%
-
-\def\@@resetdescriptionclosesymbol
-  {\global\@EA\settrue\csname\??dd\currentdescription:mrk\endcsname
-   \let\placeclosesymbol\@@placedescriptionclosesymbol
-   \let\qed             \@@placedescriptionclosesymbol}
-
-\def\@@placedescriptionclosesymbol
-  {\ifconditional\csname\??dd\currentdescription:mrk\endcsname
-     \global\@EA\setfalse\csname\??dd\currentdescription:mrk\endcsname
-     \doifsomething{\descriptionparameter\c!closesymbol}{\descriptionparameter\c!closecommand{\descriptionparameter\c!closesymbol}}%
-   \fi}
-
-%  Het default-mechanisme kan mooier: leegtest, enz.
-%
-%  Werkprocedure buiten description
-
-\def\dodosetupindentations[#1][#2]%
-  {\getparameters[\??ds#1][#2]}
-
-\def\dosetupindentations[#1][#2]%
-  {\ConvertToConstant\doifelse{#2}{}
-     {\dodosetupindentations[][#1]}
-     {\dodoubleargumentwithset\dodosetupindentations[#1][#2]}}
-
-\def\setupindentations
-  {\dodoubleempty\dosetupindentations}
-
-% what to do with this
-
-\def\startdoorspringen
-  {\whitespace
-   \@@dsbefore
-   \dosomebreak\goodbreak % \page[\v!preference]
-   \begingroup
-   \parskip\zeropoint\relax}
-
-\def\stopdoorspringen
-  {\endgroup
-   \@@dsafter}
-
-%
-
-\def\dododefineindenting#1#2#3%
-  {\par
-   \getvalue{\??ds#1\c!before}%
-   \begingroup
-   \doifvaluenothing{\??ds#1\c!sample}
-     {\setvalue{\??ds#1\c!sample}%
-        {\getvalue{\??ds#1\c!text}}}%
-   \assignwidth
-     {\!!widtha}
-     {\getvalue{\??ds#1\c!width}}
-     {\doattributes
-        {\??ds#1}\c!headstyle\c!headcolor
-        {\getvalue{\??ds#1\c!sample}%
-         \spr{\getvalue{\??ds#1\c!separator}}}}
-     {\getvalue{\??ds#1\c!distance}}%
-   \advance\!!widtha \getvalue{\??ds#1\c!distance}%
-   \setbox2\hbox to \!!widtha
-     {\doattributes
-        {\??ds#1}\c!headstyle\c!headcolor
-        {\strut
-         \getvalue{\??ds#1\c!text}%
-         \hss
-         \spr{\getvalue{\??ds#1\c!separator}}%
-         \hskip\getvalue{\??ds#1\c!distance}}}%
-   \parindent\zeropoint
-   \hskip#2\!!widtha\indent\box2%
-   \hangindent#3\!!widtha
-   \doattributes{\??ds#1}\c!style\c!color\empty
-   \AfterPar{\endgroup\getvalue{\??ds#1\c!after}}% must be redone
-   \GetPar}
-
-\def\dodefineindenting[#1][#2]%
-  {\copyparameters[\??ds#1][\??ds]
-      [\c!text,\c!separator,\c!width,\c!style,\c!color,
-       \c!headstyle,\c!sample,\c!before,\c!after,\c!distance]%
-   \getparameters[\??ds#1][#2]%
-   \setvalue            {#1}{\dododefineindenting{#1}{0}{1}}%
-   \setvalue      {\v!sub#1}{\dododefineindenting{#1}{1}{2}}%
-   \setvalue{\v!sub\v!sub#1}{\dododefineindenting{#1}{2}{3}}}
-
-\def\defineindenting
-  {\dodoubleargumentwithset\dodefineindenting}
-
-\def\definelabel
-  {\dodoubleargumentwithset\dodefinelabel}
-
-\def\dodefinelabel[#1][#2]%
-  {\definenumber
-     [#1]
-     [\c!command=,\c!location=,#2]%
-   % downward compatible
-   \processaction
-     [\numberparameter{#1}\c!location]
-     [  \v!inmargin=>{\setupnumber[#1][\c!command=\inmargin]},
-          \v!inleft=>{\setupnumber[#1][\c!command=\inleft  ]},
-         \v!inright=>{\setupnumber[#1][\c!command=\inright ]},
-          \v!margin=>{\setupnumber[#1][\c!command=\inmargin]}]%
-   % generated commands (in addition to the number ones)
-   \setvalue            {#1}{\dodoubleempty\do@@label[#1]}%
-   \setvalue{\s!reset    #1}{\resetnumber[#1]}%
-   \setvalue{\e!increment#1}{\incrementnumber[#1]}%
-   \setvalue{\e!next     #1}{\dodoubleempty\do@@nextlabel[#1]}%
-   \setvalue{\c!current  #1}{\currentnumber[#1]}}
-
-\def\do@@label[#1][#2]%
-  {\numberparameter{#1}\c!before
-   \numberparameter{#1}\c!command{\doattributes{\@@thenumber{#1}}\c!headstyle\c!headcolor{\getvalue{\e!next#1}[#2]}}%
-   \numberparameter{#1}\c!after}%
-
-\def\do@@nextlabel[#1][#2]%
-  {\nextnumber[#1][\s!lab][#2]}
-
-\def\currentnumber[#1]% kan tekst hier weg ?
-  {\dotextprefix{\numberparameter{#1}\c!text}\sectionnumberonly[#1]}
-
-\def\nextnumber[#1][#2][#3]%
-  {\incrementnumber[#1]%
-   \currentnumber[#1]%
-   \rawreference{#2}{#3}{\composedsectionnumber}}
-
-\setupdescriptions
-  [\c!location=\v!left,
-   \c!headstyle=\v!bold,
-   \c!titlestyle=\v!bold,
-   \c!style=\v!normal,
-   \c!color=,
-   \c!headcolor=,
-   \c!titlecolor=,
-   \c!width=8em,
-   \c!distance=0pt,
-   \c!titledistance=0.5em,
-   \c!hang=,
-   \c!sample=,
-   \c!align=,
-   \c!margin=\v!no,
-   \c!before=\blank,
-   \c!inbetween=\blank,
-   \c!after=\blank,
-   \c!indentnext=\v!yes,
-   \c!indenting=\v!never,
-   \c!titleleft=(,
-   \c!titleright=),
-   \c!closesymbol=,
-   \c!closecommand=\wordright,
-   \c!command=,
-   \c!titlecommand=]
-
-\setupenumerations
-  [\c!location=\v!top,
-   \c!headstyle=\v!bold,
-   \c!headcolor=,
-   \c!titlestyle=\v!bold,
-   \c!titlecolor=,
-   \c!style=\v!normal,
-   \c!color=,
-   \c!width=8em,
-   \c!distance=0pt,
-   \c!titledistance=0.5em,
-   \c!hang=,
-   \c!sample=,
-   \c!align=,
-   \c!margin=\v!no,
-   \c!before=\blank,
-   \c!inbetween=\blank,
-   \c!after=\blank,
-   \c!indentnext=\v!yes,
-   \c!indenting=\v!never,
-   \c!text=,
-   \c!levels=3,                % to be upward compatible
-   \c!conversion=,             % to be upward compatible
-   \c!way=\v!by\v!text,
-   \c!sectionnumber=\v!yes,
-   \c!separator=\@@koseparator, % per 2006.06.23, was .
-   \c!stopper=,
-   \c!titleleft=(,
-   \c!titleright=),
-   \c!closesymbol=,
-   \c!closecommand=\wordright,
-   \c!number=,
-   \c!command=,
-   \c!titlecommand=]
-
-\setupindentations
-  [\c!style=\v!normal,
-   \c!headstyle=\v!normal,
-   \c!color=,
-   \c!headcolor=,
-   \c!width=\v!fit,
-   \c!text=\unknown,
-   \c!sample=,
-   \c!before=\blank,
-   \c!after=\blank,
-   \c!distance=1em,
-   \c!separator={ :}]
-
-\protect \endinput