\RequirePackage{tikz}
\def\CFfromsty{}
\input{\directlua{tex.print(source.."source/chemfig/chemfig")}}
\ProvidesPackage\CFname[\CFdate\space v\CFver\space Draw molecule with an easy syntax (CT)]
\def\printatom#1{\ensuremath{\text{#1}}}% \printatom pour LaTeX.
\expandafter\def\csname CF\string_begintikzpicture\endcsname{\begin{tikzpicture}}%
\expandafter\def\csname CF\string_endtikzpicture\endcsname{\end{tikzpicture}}%
\endinput