%%%%
% Prog de calculs "simples"
%%%%
\setKVdefault[ClesProg]{%
  Ecart=2em,%
  Direct,%
  SansCalcul=false,%
  Application=false,%
  Details=false,%
  Enonce=false,%
  Nom={},%
  CouleurCadre=black,%
  CouleurFond=gray!10,%
  Largeur={.95\linewidth},%
  Epaisseur=.75pt,%
  Pointilles=0,%
  ThemePerso=false,%
  Vide=false,%pour vider le chemin de flèches
  Depart=false,%pour indiquer qu'on cherche le nombre de départ (non fractionnaire pour le moment)
  Retour=false,%on affiche les fleches de retour
  OpReciproques=false,%on affiche les opérations réciproques
  Reponses=0,%on affiche les opérations réciproques 1 par 1 :)
  ReponsesCalculs=0,%on affiche les valeurs 1 par 1 :)
}

\newcounter{NBprog}%
\setcounter{NBprog}{0}%

\newlength{\PointillesClesProg}%

\NewDocumentCommand\ProgCalcul{som}{%
  % #1 : pour l'écriture rapide, linéaire du programme de calcul
  % #2 : cl\'es
  % #3 : \'etapes
  \useKVdefault[ClesProg]%
  \setKV[ClesProg]{#2}%
  \IfBooleanTF{#1}{%
    \setsepchar[*]{,* }\ignoreemptyitems%
    \readlist*\ListeProg{#3}%
    \ensuremath{%
      \xdef\NbDepart{\ListeProg[1]}%
      \ifboolKV[ClesProg]{SansCalcul}{%
          \NbDepart\foreachitem\compteur\in\ListeProg[2]{%
            \edef\Test{\ListeProg[2,\compteurcnt]}%
            \expandarg%
            \StrSubstitute{\Test}{^}{\empty\dots{}^}[\tempa]%
            \StrSubstitute{\tempa}{**}{^}[\tempab]%
            \StrSubstitute{\tempab}{*}{\times}[\tempac]%
            \StrSubstitute{\tempac}{/}{\div}[\tempad]%
            % \hspace{0.2em}
            \xrightarrow{\tempad}
            % \hspace{0.2em}
            \ListeProg[3,\compteurcnt]%
          }%
        }{%
          \num{\NbDepart}~\foreachitem\compteur\in\ListeProg[2]{%
            \ifboolKV[ClesProg]{Direct}{%
                \edef\Test{\ListeProg[2,\compteurcnt]}%
                \expandarg%
                \StrSubstitute{\Test}{^}{\empty\dots{}^}[\tempa]%
                \StrSubstitute{\tempa}{**}{^}[\tempab]%
                \StrSubstitute{\tempab}{*}{\times}[\tempac]%
                \StrSubstitute{\tempac}{/}{\div}[\tempad]%
                % \hspace{0.2em}
                \xdef\NbDepart{\fpeval{(\NbDepart)\ListeProg[2,\compteurcnt]}}
                % \hspace{0.2em}
                \xrightarrow{\tempad}~\num{\NbDepart}%
              }{%
                \edef\Test{\ListeProg[2,\compteurcnt]}
                \expandarg%
                \StrSubstitute{\Test}{^2}{\empty\sqrt{\dots{}}}[\tempa]%
                \StrSubstitute{\tempa}{**}{^}[\tempab]%
                \StrSubstitute{\tempab}{*}{\div}[\tempac]%
                \StrSubstitute{\tempac}{/}{\times}[\tempad]%
                \StrSubstitute{\tempad}{-}{+}[\tempae]%
                \StrSubstitute{\tempae}{++}{-}[\tempaf]%
                %\hspace{0.2em}
                \xdef\NbDepart{\fpeval{(\NbDepart)\ListeProg[2,\compteurcnt]}}
                % \hspace{0.2em}
                \xleftarrow{\tempaf}~\num{\NbDepart}%
              }%
            }%
          }
        }
      }{%
        \ifboolKV[ClesProg]{ThemePerso}{}{%
      \tcbset{ProgCalcul/.style={%
          boxsep=1mm,
          bottom=.75mm,
          middle=2mm,
          boxrule={\useKV[ClesProg]{Epaisseur}},
          text width={\useKV[ClesProg]{Largeur}},
          colframe={\useKV[ClesProg]{CouleurCadre}},
          colback={\useKV[ClesProg]{CouleurFond}},
          halign upper=center
        }%
      }%
    }%
  \ifboolKV[ClesProg]{Application}{%
      %    % by Thomas Dehon and cp
    \setsepchar[*]{§*,}%
    % \setsepchar[*]{,* }%
    \ignoreemptyitems%
    \readlist*\ListeTotale{#3}%
    \xdef\PfCPCfoo{\ListeTotale[1]}%
    \xdef\PfCPCfaa{\ListeTotale[2]}%
    %% 
    \setsepchar{,}%    \ignoreemptyitems%
    \readlist*\ListeEtapes{\PfCPCfoo}%
    \setsepchar[*]{,* }\ignoreemptyitems%
    \readlist*\ListeProg{\PfCPCfaa}%
      \begin{tcolorbox}[%
        ProgCalcul,%
        ]
        \ifthenelse{\equal{\useKV[ClesProg]{Nom}}{}}%
        {}%
        {%
          {\color{\useKV[ClesProg]{CouleurCadre}}{\bfseries\useKV[ClesProg]{Nom}}}%
          \tcblower
        }%
        \ifboolKV[ClesProg]{SansCalcul}{%
          \begin{enumerate}
          \item Choisir un nombre~\pointilles~$\ListeProg[1]$%
            \foreachitem\etape\in\ListeEtapes{%
            \item \etape~\pointilles~$\ListeProg[3,\etapecnt]$
            }%
          \end{enumerate}
        }{\begin{enumerate}
          \item Choisir un nombre~\pointilles~\xdef\NbDepart{\ListeProg[1]}\num{\NbDepart}
            \foreachitem\etape\in\ListeEtapes{%
            \item \etape~\pointilles~\edef\Test{\ListeProg[2,\etapecnt]}%
              \expandarg%
              \StrSubstitute{\Test}{^}{\empty\dots{}^}[\tempa]%
              \StrSubstitute{\tempa}{**}{^}[\tempab]%
              \StrSubstitute{\tempab}{*}{\times}[\tempac]%
              \StrSubstitute{\tempac}{/}{\div}[\tempad]%
              $\ifboolKV[ClesProg]{Details}{\xintifboolexpr{\NbDepart<0}{(\num{\NbDepart})}{\num{\NbDepart}}\tempad=}{}\xdef\NbDepart{\fpeval{(\NbDepart)\ListeProg[2,\etapecnt]}}\num{\NbDepart}$%
            }%
          \end{enumerate}
        }
      \end{tcolorbox}
  }{%
    \ifboolKV[ClesProg]{Enonce}{%
      % by Thomas Dehon
      \setsepchar[*]{,* }%
      \ignoreemptyitems%
      \readlist*\ListeEtapes{#3}% 
      \begin{tcolorbox}[%
        ProgCalcul,%
        ]
        \ifthenelse{\equal{\useKV[ClesProg]{Nom}}{}}%
        {}%
        {%
          {\color{\useKV[ClesProg]{CouleurCadre}}{\bfseries\useKV[ClesProg]{Nom}}}%
          \tcblower
        }%
        \begin{enumerate}
          \foreachitem\etape\in\ListeEtapes{%
          \item \etape 
            \ifthenelse{\equal{\useKV[ClesProg]{Pointilles}}{0}}%
            {}%
            {%
              \setlength{\PointillesClesProg}{\useKV[ClesProg]{Pointilles}}
              \hfill \pointilles[\PointillesClesProg]%
            }%
          }
        \end{enumerate}
      \end{tcolorbox}
    }{%
      \setsepchar[*]{,* }\ignoreemptyitems%
      \readlist*\ListeProg{#3}%
      \stepcounter{NBprog}%
      \ifboolKV[ClesProg]{Vide}{%
        \xdef\PfCNbDepart{\ListeProg[1]}%
        \ifnum\fpeval{\useKV[ClesProg]{ReponsesCalculs}}=\listlen\ListeProg[2]\relax%
          \num{\PfCNbDepart}%
        \else%
          \phantom{\num{\PfCNbDepart}}%
        \fi%
        \foreachitem\compteur\in\ListeProg[2]{%
          \xdef\PfCNbDepart{\fpeval{(\PfCNbDepart)\ListeProg[2,\compteurcnt]}}%
          \hspace{0.2em}\tikzmark{A-\theNBprog-\compteurcnt}\hspace{\useKV[ClesProg]{Ecart}}\tikzmark{B-\theNBprog-\compteurcnt}\hspace{0.2em}%
          \ifnum\fpeval{\listlen\ListeProg[2]-\compteurcnt}<\fpeval{\useKV[ClesProg]{ReponsesCalculs}+1}\relax%
            \ifboolKV[ClesProg]{Depart}{\num{\PfCNbDepart}}{\phantom{\num{\PfCNbDepart}}}%\num{\PfCNbDepart}%
          \else%
            \ifnum\compteurcnt=\listlen\ListeProg[2]\relax%
              \ifboolKV[ClesProg]{Depart}{\num{\PfCNbDepart}}{\phantom{\num{\PfCNbDepart}}}%
            \else%
              \phantom{\num{\PfCNbDepart}}%
            \fi%
          \fi%
          }%
          \begin{tikzpicture}[remember picture, overlay]
           \foreachitem\compteur\in\ListeProg[2]{%
             \edef\Test{\ListeProg[2,\compteurcnt]}%
             \expandarg%
             \StrSubstitute{\Test}{^}{\empty\dots{}^}[\tempa]%
             \StrSubstitute{\tempa}{**}{^}[\tempab]%
             \StrSubstitute{\tempab}{*}{\times}[\tempac]%
             \StrSubstitute{\tempac}{/}{\div}[\tempad]%
             \draw[-stealth,transform canvas={yshift=0.25em}] (pic cs:A-\theNBprog-\compteurcnt) --
             node[above]{\scriptsize$\tempad$}(pic cs:B-\theNBprog-\compteurcnt);
           }%
         \end{tikzpicture}
         \ifboolKV[ClesProg]{Retour}{%
           \begin{tikzpicture}[remember picture, overlay]
             \foreachitem\compteur\in\ListeProg[2]{%
               \edef\Test{\ListeProg[2,\compteurcnt]}%
               \expandarg%
               \StrSubstitute{\Test}{^2}{\empty\sqrt{\dots{}}}[\tempa]%
               \StrSubstitute{\tempa}{**}{^}[\tempab]%
               \StrSubstitute{\tempab}{*}{\div}[\tempac]%
               \StrSubstitute{\tempac}{/}{\times}[\tempad]%
               \StrSubstitute{\tempad}{-}{+}[\tempae]%
               \StrSubstitute{\tempae}{++}{-}[\tempaf]%
               \ifnum\fpeval{\useKV[ClesProg]{Reponses}}>0\relax%
                 \ifnum\fpeval{\listlen\ListeProg[2]-\compteurcnt}<\fpeval{\useKV[ClesProg]{Reponses}}\relax%
                   \ifboolKV[ClesProg]{OpReciproques}{%
                     \draw[-stealth,out=-150,in=-30,transform canvas={yshift=-0.5em}] (pic cs:B-\theNBprog-\compteurcnt) to  node[below]{\scriptsize$\tempaf$}(pic cs:A-\theNBprog-\compteurcnt);
                   }{%
                     \draw[-stealth,out=-150,in=-30,transform canvas={yshift=-0.5em}] (pic cs:B-\theNBprog-\compteurcnt) to  (pic cs:A-\theNBprog-\compteurcnt);
                   }%
                 \fi%
               \else%
                 \ifboolKV[ClesProg]{OpReciproques}{%
                     \draw[-stealth,out=-150,in=-30,transform canvas={yshift=-0.5em}] (pic cs:B-\theNBprog-\compteurcnt) to  node[below]{\scriptsize$\tempaf$}(pic cs:A-\theNBprog-\compteurcnt);
                   }{%
                     \draw[-stealth,out=-150,in=-30,transform canvas={yshift=-0.5em}] (pic cs:B-\theNBprog-\compteurcnt) to  (pic cs:A-\theNBprog-\compteurcnt);
                   }%
                 \fi%
               }%
           \end{tikzpicture}%
         }{}%
       }{%
         \xdef\NbDepart{\ListeProg[1]}%
        \ifboolKV[ClesProg]{SansCalcul}{%
          $\NbDepart$\foreachitem\compteur\in\ListeProg[2]{%
            \hspace{0.2em}\tikzmark{A-\theNBprog-\compteurcnt}\hspace{\useKV[ClesProg]{Ecart}}\tikzmark{B-\theNBprog-\compteurcnt}\hspace{0.2em}$\ListeProg[3,\compteurcnt]$%
          }%
          \begin{tikzpicture}[remember picture, overlay]
            \foreachitem\compteur\in\ListeProg[2]{%
              \edef\Test{\ListeProg[2,\compteurcnt]}
              \expandarg%
              \StrSubstitute{\Test}{^}{\empty\dots{}^}[\tempa]%
              \StrSubstitute{\tempa}{**}{^}[\tempab]%
              \StrSubstitute{\tempab}{*}{\times}[\tempac]%
              \StrSubstitute{\tempac}{/}{\div}[\tempad]%
              \draw[-stealth,transform canvas={yshift=0.25em}] (pic cs:A-\theNBprog-\compteurcnt) --
              node[above]{\scriptsize$\tempad$}(pic cs:B-\theNBprog-\compteurcnt);
            }%
          \end{tikzpicture}%
        }{%
          \num{\NbDepart}\foreachitem\compteur\in\ListeProg[2]{%
            \hspace{0.2em}\tikzmark{A-\theNBprog-\compteurcnt}\hspace{\useKV[ClesProg]{Ecart}}\tikzmark{B-\theNBprog-\compteurcnt}\xdef\NbDepart{\fpeval{(\NbDepart)\ListeProg[2,\compteurcnt]}}\hspace{0.2em}\num{\NbDepart}%
          }%
          \ifboolKV[ClesProg]{Direct}{%
            \begin{tikzpicture}[remember picture, overlay]
              \foreachitem\compteur\in\ListeProg[2]{%
                \edef\Test{\ListeProg[2,\compteurcnt]}
                \expandarg%
                \StrSubstitute{\Test}{^}{\empty\dots{}^}[\tempa]%
                \StrSubstitute{\tempa}{**}{^}[\tempab]%
                \StrSubstitute{\tempab}{*}{\times}[\tempac]%
                \StrSubstitute{\tempac}{/}{\div}[\tempad]%
                \draw[-stealth,transform canvas={yshift=0.25em}] (pic cs:A-\theNBprog-\compteurcnt) --
                node[above]{\scriptsize$\tempad$}(pic
                cs:B-\theNBprog-\compteurcnt);
              }%
            \end{tikzpicture}%
          }{%
            \begin{tikzpicture}[remember picture, overlay]
              \foreachitem\compteur\in\ListeProg[2]{%
                \edef\Test{\ListeProg[2,\compteurcnt]}
                \expandarg%
                \StrSubstitute{\Test}{^2}{\empty\sqrt{\dots{}}}[\tempa]%
                \StrSubstitute{\tempa}{**}{^}[\tempab]%
                \StrSubstitute{\tempab}{*}{\div}[\tempac]%
                \StrSubstitute{\tempac}{/}{\times}[\tempad]%
                \StrSubstitute{\tempad}{-}{+}[\tempae]%
                \StrSubstitute{\tempae}{++}{-}[\tempaf]%
                \draw[-stealth,transform canvas={yshift=0.25em}] (pic cs:B-\theNBprog-\compteurcnt) --  node[above]{\scriptsize$\tempaf$}(pic cs:A-\theNBprog-\compteurcnt);
              }%
            \end{tikzpicture}
          }%
        }%
      }%
    }%
  }%
  }
}%