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%%%
% Codage RLE
%%%
\setKVdefault[RLE]{Largeur=10pt,Taille=5,Unite=1cm,Solution=false,Enonce=true}
\newtoks\toklisterle
\def\UpdatetoksRLE#1\nil{\addtotok\toklisterle{#1,}}%
%\newlength\PfCRLEHeight%
\NewDocumentCommand\CodageRLE{o m}{%
\useKVdefault[RLE]%
\setKV[RLE]{#1}%
%\setlength{\PfCRLEHeight}{\useKV[RLE]{Largeur}}%
\setsepchar{,}%
\readlist*\PfCListeRLE{#2}%
\toklisterle{}%
\foreachitem\compteur\in\PfCListeRLE{\expandafter\UpdatetoksRLE\compteur\nil}%
\BuildRLE{\the\toklisterle}%
}
\def\BuildRLECode{%
Taille:=\useKV[RLE]{Taille};
u:=\useKV[RLE]{Unite};
boolean Solution,Enonce;
Solution:=\useKV[RLE]{Solution};
Enonce:=\useKV[RLE]{Enonce};
%
color RLEFill;
RLEFill=white;
%
numeric nbretenir[][];
%
vardef NombreLigne(text t)=
retiens:=0;
nblignes:=0;
for p_=t:
retiens:=retiens+p_;
if retiens=Taille:
nblignes:=nblignes+1;
retiens:=0;
fi;
endfor;
enddef;
%
path Square;
Square=unitsquare scaled u;
%
vardef RLE(text t)=
nbcoups:=0;
nbcases:=0;
nbcaseslignes:=0;
cptretiensnb:=0;
cptretiensnblignes:=1;
for p_=t:
if p_=0:
cptretiensnb:=cptretiensnb+1;
nbretenir[cptretiensnblignes][cptretiensnb]=p_;
RLEFill:=black;
else:
nbcoups:=nbcoups+1;
for l=0 upto p_-1:
if Solution: fill ((Square scaled 0.95) shifted(u*((nbcases mod Taille)+l,-(nbcases div Taille))+u*(0.025,0.025))) withcolor RLEFill; fi;
trace (Square shifted(u*((nbcases mod Taille)+l,-(nbcases div Taille))));
endfor;
nbcaseslignes:=nbcaseslignes+p_;
nbcases:=nbcases+p_;
if (nbcaseslignes mod Taille)=0:
RLEFill:=white;
cptretiensnb:=cptretiensnb+1;
nbretenir[cptretiensnblignes][cptretiensnb]=p_;
cptretiensnblignes:=cptretiensnblignes+1;
cptretiensnb:=0;
else:
if RLEFill=white: RLEFill:=black else: RLEFill:=white fi;
cptretiensnb:=cptretiensnb+1;
nbretenir[cptretiensnblignes][cptretiensnb]=p_;
fi;
fi;
endfor;
enddef;
%
string Sequence[];
%
boolean STOP;
STOP:=false;
%
vardef Affichage=
for k=1 upto nblignes:
Sequence[k]=decimal(nbretenir[k][1]);
n:=1;
forever:
n:=n+1;
if unknown nbretenir[k][n]:
STOP:=true;
else:
Sequence[k]:=Sequence[k]&","&decimal(nbretenir[k][n]);
fi;
exitif STOP;
endfor;
label.rt(TEX(Sequence[k]),u*(Taille+1,-k+1+0.5));
STOP:=false;
endfor;
enddef;
%
vardef AffichagePDF=
for k=1 upto nblignes:
Sequence[k]=decimal(nbretenir[k][1]);
n:=1;
forever:
n:=n+1;
if unknown nbretenir[k][n]:
STOP:=true;
else:
Sequence[k]:=Sequence[k]&","&decimal(nbretenir[k][n]);
fi;
exitif STOP;
endfor;
label.rt(LATEX(Sequence[k]),u*(Taille+1,-k+1+0.5));
STOP:=false;
endfor;
enddef;
}
\NewDocumentCommand\BuildRLE{m}{%
\ifluatex
\mplibforcehmode
\begin{mplibcode}
\BuildRLECode
NombreLigne(#1);
RLE(#1);
if Enonce:
Affichage;
fi;
\end{mplibcode}
\else
\begin{mpost}[mpsettings={\BuildRLECode}]
NombreLigne(#1);
RLE(#1);
if Enonce:
AffichagePDF;
fi;
\end{mpost}
\fi
}
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