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%D \module
%D [ file=m-educat,
%D version=2003.03.05,
%D title=\CONTEXT\ Extra Modules,
%D subtitle=Educational Extras,
%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.
%D This module will collect a few macros cq.\ definitions
%D meant for educational use. Most of the code has been laying
%D around for some time and has been (or is still) used in
%D \PRAGMA\ projects.
\unprotect
\startvariables dutch english
german czech
italian romanian
answerarea: antwoordgebied answerarea
answerarea answerarea
answerarea answerarea
\stopvariables
\startelements dutch english
german czech
italian romanian
answerspace: antwoordruimte answerspace
answerspace answerspace
answerspace answerspace
answerlines: antwoordregels answerlines
answerlines answerlines
answerlines answerlines
\stopelements
\startcommands dutch english
german czech
italian romanian
setupanswerarea: stelantwoordgebiedin setupanswerarea
setupanswerarea setupanswerarea
setupanswerarea setupanswerarea
\stopcommands
\definesystemvariable{iv}
\definecolor [answerareacolor] [s=.90]
\definecolor [answerlinecolor] [white]
\definetextbackground
[\v!answerarea]
[\c!location=\v!text,
\c!n=0,
\c!frame=\v!off,
\c!framecolor=answerlinecolor,
\c!rulethickness=2pt,
\c!background=\v!color,
\c!backgroundcolor=answerareacolor,
\c!alternative=2] % betweenline
% n=gedwongen
% m=extra auto
\def\setupanswerarea
{\setuptextbackground[\v!answerarea]}
\setvalue\e!answerspace
{\dosingleempty\doanswerspace}
\def\doanswerspace[#1]%
{\begingroup
\dontcomplain
\setupanswerarea
[\c!n=0,\c!m=,#1,\c!location=\v!text]%
\doifelsenothing{\backgroundvariable\c!m}
{\expandafter\donoanswerspace}
{\expandafter\dodoanswerspace}%
[#1]}
\def\donoanswerspace[#1]#2%
{\setupthinrules
[\c!alternative=\backgroundvariable\c!alternative,
\c!color=\backgroundvariable\c!framecolor,
\c!background=\backgroundvariable\c!background,
\c!backgroundcolor=\backgroundvariable\c!backgroundcolor,
\c!rulethickness=\backgroundvariable\c!rulethickness]%
\doifelse{\backgroundvariable\c!n}{*}
{\thinrule
\par}
{\scratchcounter0\backgroundvariable\c!n\relax
% tricky, guess
\def\processisolatedword##1%
{\setbox\scratchbox=\hbox{##1}%
\vbox{\hsize\wd\scratchbox\thinrule
\ifcase\scratchcounter\else
\setbox\scratchbox=\hbox{\space}%
\nobreak\hskip\zeropoint \!!minus \wd\scratchbox
\vbox{\hsize\wd\scratchbox\thinrule}%
\fi}}%
\processisolatedwords{#2}\processisolatedword
% so far
\ifcase\scratchcounter \else \ifnum\scratchcounter<3
\nobreak \vbox{\hsize\scratchcounter em\thinrule}%
\else % more
\advance \scratchcounter -2
\dorecurse\scratchcounter{\allowbreak\vbox{\hsize1em\thinrule}}%
\nobreak \vbox{\hsize2em\thinrule}%
\fi \fi}%
\endgroup}
\def\dodoanswerspace[#1]#2% m case
{\getvalue{\e!start\v!answerarea}%
#2%
\doifelse{\backgroundvariable\c!m}{*}
{\hfill\strut
\getvalue{\e!stop\v!answerarea}%
\par}
{\scratchcounter0\backgroundvariable\c!m\relax
\ifcase\scratchcounter \else \ifnum\scratchcounter<3
\nobreak \hbox to \scratchcounter em{\strut\hss}%
\else % more
\advance \scratchcounter -2
\dorecurse\scratchcounter{\allowbreak\hbox to 1em{\strut\hss}}%
\nobreak \hbox to 2em{\strut\hss}%
\fi \fi
\getvalue{\e!stop\v!answerarea}}%
\endgroup}
\setvalue{\e!start\e!answerlines}%
{\dosingleempty\dostartanswerlines}
\def\dostartanswerlines[#1]%
{\begingroup
\dontcomplain
\setupanswerarea
[\c!n=0,\c!m=,#1,\c!location=\v!text]%
\doifnot{\backgroundvariable\c!option}\v!joinedup\softbreak
\doifelsenothing{\backgroundvariable\c!m}
{\expandafter\donostartanswerlines}
{\expandafter\dodostartanswerlines}%
[#1]}
\def\donostartanswerlines[#1]%
{\setupthinrules
[\c!alternative=\backgroundvariable\c!alternative,
\c!color=\backgroundvariable\c!framecolor,
\c!background=\backgroundvariable\c!background,
\c!backgroundcolor=\backgroundvariable\c!backgroundcolor,
\c!rulethickness=\backgroundvariable\c!rulethickness]%
\thinrules[\c!n=\backgroundvariable\c!n]\par
\endgroup
\grabuntil{\e!stop\e!answerlines}}
\def\dodostartanswerlines[#1]%
{\begingroup
\getvalue{\e!start\v!answerarea}%
\ignorespaces}
\setvalue{\e!stop\e!answerlines}%
{\scratchcounter0\backgroundvariable\c!m\relax
% a \softbreak is more efficient in pos dan \par
\ifcase\scratchcounter
% nothing
\or
\softbreak
\else
\softbreak
\advance \scratchcounter \minusone
\dorecurse\scratchcounter{\strut\hfill\strut\softbreak}%
\fi
\strut\hfill\strut
\getvalue{\e!stop\v!answerarea}%
\par\endgroup\endgroup}
\setvalue\e!answerlines
{\dosingleempty\doanswerlines}
\def\doanswerlines[#1]#2%
{\getvalue{\e!start\e!answerlines}[#1]%
#2%
\getvalue{\e!stop\e!answerlines}}
\protect \doifnotmode{demo}{\endinput}
%D Test materiaal.
\starttext
\startnotmode[answers]
\setupanswerarea[level=+1]
\stopnotmode
\setupcolors[state=start]
test test test \answerspace [n=10] {Whow}. test test test
test tets test test \answerspace [n=10] {Whow}. test test
test test tets test test \answerspace [n=10] {Whow}. test
test test test tets test test \answerspace [n=10] {Whow}.
test test test test test test \answerspace [n=*] {Whow.}
test test test test test test test \startanswerlines
[n=3] What A Junk Answer \stopanswerlines
test test test test test test test \startanswerlines
[n=3,alternative=0] What A Junk Answer \stopanswerlines
test test test test test test test \startanswerlines
[n=3,alternative=1] What A Junk Answer \stopanswerlines
test test test test test test test \startanswerlines
[n=3,alternative=2] What A Junk Answer \stopanswerlines
\startitemize[paragraph]
\item \startanswerlines [option=seried,n=2] xxx \stopanswerlines
\stopitemize
test test test \answerspace [m=10] {Whow}. test test test
test tets test test \answerspace [m=10] {Whow}. test test
test test tets test test \answerspace [m=10] {Whow}. test
test test test tets test test \answerspace [m=10] {Whow}.
test test test test test test \answerspace [m=*] {Whow.}
test test test test test test test \startanswerlines
[m=2] What A Junk Answer \stopanswerlines
test test test test test test test \startanswerlines
[m=2,alternative=0] What A Junk Answer \stopanswerlines
test test test test test test test \startanswerlines
[m=2,alternative=1] What A Junk Answer \stopanswerlines
test test test test test test test \startanswerlines
[m=2,alternative=2] What A Junk Answer \stopanswerlines
\startitemize[paragraph]
\item \startanswerlines [option=seried,m=2] xxx \stopanswerlines
\stopitemize
\stoptext
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