%
% Empty
%
> \cals@current@rs@above=macro:
->.
> \cals@current@rs@below=macro:
->.
%
% One element
%
> \cals@current@rs@above=macro:
->{{100pt}{3pt}{5pt}\relax }.
> \cals@current@rs@below=macro:
->{{100pt}{3pt}{5pt}{4pt}}.
%
% Two elements
%
> \cals@current@rs@above=macro:
->{{100pt}{0pt}{2pt}\relax }{{200pt}{2pt}{8pt}{6pt}}.
> \cals@current@rs@below=macro:
->{{100pt}{0pt}{2pt}{4pt}}{{200pt}{2pt}{8pt}\relax }.
