Hi,
Here is the resulting file with LuaLaTeX.
Thank you.


2014/1/18 Fabrice Couvreur <fabrice1.couvreur@gmail.com>

> Hi,
> I use the following header to my statements made with tittlesec package.
>
> \makeatletter
>
>     \newcommand{\@classe}[1]{}
>     \newcommand{\classe}[1]{\gdef\@classe{#1}}
>     \newcommand{\@typedevoir}[1]{}
>     \newcommand{\typedevoir}[1]{\gdef\@typedevoir{#1}}
>     \newcommand{\@numerodevoir}[1]{}
>     \newcommand{\numerodevoir}[1]{\gdef\@numerodevoir{#1}}
>     \AtBeginDocument{\section{\@typedevoir\space\no\@numerodevoir}}
>     \titleformat{\section}[frame]
>       {\normalfont}
>       {\footnotesize\enspace\itshape\@classe\enspace--\enspace Le
> \@date\enspace}
>       {10pt}
>       {\Large\scshape\bfseries\filcenter}
>   \makeatother
>
> I want to gradually move to ConTeXt and I tried to create the same header.
> But I do not yet know all the commands to do with ConTeXt.
>
> \setuptextrules
> [style=\it,location=top]
> \define[6]\MyHeader{%
>
> \textrule[top]{#1\space--\space\date[d=#2,m=#3,y=#4]}{\startlinealignment[middle]{\cap
> \bf #5 \space n\high{{o}}\space {#6}}\stoplinealignment\blank\textrule}}
>
> \starttext
> \MyHeader{Seconde GTA}{11}{1}{2014}{Devoir de Mathématiques}{7}
> \stoptext
> Thank you.
>