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path: root/tex/context/base/core-num.tex
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%D \module
%D   [       file=core-num,
%D        version=1997.03.31,
%D          title=\CONTEXT\ Core Macros,
%D       subtitle=Numbering,
%D         author=Hans Hagen,
%D           date=\currentdate,
%D      copyright={PRAGMA / Hans Hagen \& Ton Otten}]
%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 Core Macros / Numbering}

\unprotect

%  Commando's ten behoeve van nummeren:
%
%    \definieernummer[naam]
%    \stelnummerin[naam][wijze=,blok=,tekst=,plaats=,conversie=,start=]
%    \setnummer[naam]{waarde}
%    \resetnummer[naam]
%    \verhoognummer[naam]
%    \verlaagnummer[naam]
%    \volgendenummer[naam][tag][referentie]
%    \nummer[naam]
%    \huidigenummer[naam]
%    \savenumber[naam]
%    \restorenumber[naam]

\newif\ifnummeren

\def\dostelnummerin[#1][#2]%
  {\@EA\let\@EA\savedstartnumber\csname\s!number#1\c!start\endcsname
   \getparameters[\s!number#1][\c!start=,#2]%
   \doifelsevaluenothing{\s!number#1\c!start}
     {\letvalue{\s!number#1\c!start}=\savedstartnumber}
     {\setcounter{\s!number#1}{\getvalue{\s!number#1\c!start}}}}

\def\stelnummerin%
  {\dodoubleargument\dostelnummerin}

\def\dodefinieernummer[#1][#2]% ook overal class als localframed
  {\getparameters
     [\s!number#1]
     [\s!check=,
      \c!wijze=\@@nrwijze,
      \c!wijze\c!lokaal=\getvalue{\s!number#1\c!wijze},
      \c!sectienummer=\v!ja,
      \c!tekst=,
      \c!plaats=, % was: \c!zetwijze
      \c!conversie=\v!cijfers,
      \c!start=0,
      #2]%
    \makecounter{\s!number#1}%
    \setcounter{\s!number#1}{\getvalue{\s!number#1\c!start}}}

% \c!nummer=#1 ; nogal veel copieen nodig
%
% \def\@@thenumber#1{\s!number\getvalue{\s!number#1\c!nummer}}

\def\definieernummer%
  {\dodoubleempty\dodefinieernummer}

\def\setnummer[#1]#2%
  {\setcounter{\s!number#1}{#2}}

\def\resetnummer[#1]%
  {\setcounter{\s!number#1}{0\getvalue{\s!number#1\c!start}}}

\def\dodoreset#1%
  {\getvalue{\s!reset#1}}%

\def\doreset[#1]%
  {\processcommalist[#1]\dodoreset}

\def\reset%
  {\dosingleargument\doreset}

\def\verhoognummer[#1]%
  {\checknummer{#1}%
   \ifnummeren
   \else
     \resetcounter{\s!number#1}%
   \fi
   \pluscounter{\s!number#1}}

\def\savenumber[#1]%
  {\savecounter{\s!number#1}}

\def\restorenumber[#1]%
  {\restorecounter{\s!number#1}}

% nieuw, maar kan dit (i.v.m. (sub)page?)

\def\verhoognummer[#1]%
  {\checknummer{#1}%
   \ifnummeren
     \pluscounter{\s!number#1}%
   \else
     \setcounter{\s!number#1}{0\getvalue{\s!number#1\c!start}}%
   \fi}

\def\verlaagnummer[#1]%
  {\minuscounter{\s!number#1}}

\def\nummer[#1]%
  {\convertnumber
     {\getvalue{\s!number#1\c!conversie}}
     {\countervalue{\s!number#1}}}

\def\ruwenummer[#1]%
  {\countervalue{\s!number#1}}

% ook de pag nummers hierheen halen ivm \@@nrwijze 

\def\dostelnummerenin[#1]%                 globaal
  {\getparameters[\??nr][#1]%
   \doifelse{\@@nrstatus}{\v!start}
     {\global\nummerentrue}
     {\global\nummerenfalse}}%

\def\stelnummerenin%
  {\dosingleargument\dostelnummerenin}

\stelnummerenin
  [\c!wijze=\v!per\v!hoofdstuk,
   \c!blokwijze=,
   \c!sectienummer=\v!ja,
   \c!status=\v!start]

\protect \endinput