\def\dolistitem % evt aantal items opslaan per niveau, scheelt zoeken
  {\ifconditional\textlistitem
    % begin of item
   \else
      \par
   \fi
%    \ignorespaces
   \increment\noflistelements
   \ifnum\itemcolumndepth=\zerocount \ifconditional\optimizelistitem
     \ifnum\noflistelements=\plusone        % tgv bv kolommen/nesting
       \findtwopassdata\s!list{\noflists:}% % wordt soms de volgorde
     \fi                                    % verstoord, vandaar \find
     \iftwopassdatafound
       \ifcase0\twopassdata\relax \twopassdatafoundfalse \fi
     \fi
     \iftwopassdatafound
       \ifnum\twopassdata=3
         \ifnum\noflistelements>1
           \doitembreak\itemnobreak
         \fi
       \else\ifnum\twopassdata>3
         \ifnum\noflistelements=2
           \ifconditional\introlistitem
             \doitembreak\nobreak
           \else
             \doitembreak\itemnobreak
           \fi
         \else\ifnum\twopassdata=\noflistelements\relax
           \doitembreak\itemnobreak
        \else\ifnum\noflistelements>2
           \doitembreak\itembreak
         \else
           \ifconditional\introlistitem\else\doitembreak\itembreak\fi
         \fi\fi\fi
       \fi\fi
     \fi
   \fi\fi
   \noindent
   \setbox8\hbox
     {\ifconditional\headlistitem
        \ifconditional\symbollistitem
          \symsymbol
        \else
          \doitemattributes\itemlevel\c!headstyle\c!headcolor{\listitem}%
        \fi
      \else
        \ifconditional\symbollistitem
          \symsymbol % no attributes, why?
        \else
          \doitemattributes\itemlevel\c!style\c!color{\listitem}%
        \fi
      \fi}%
   \doifsomething\somdestination
     {\setbox8\hbox{\goto{\box8}[\somdestination]}}%
   \globallet\somdestination\empty
   \dimen2=\getitemparameter\itemlevel\c!width\relax
   % new, prevents loops when symbol is (not yet found) graphic
   \ht8=\strutheight
   \dp8=\strutdepth
   % so that content differs per run (esp mp graphics afterwards)
\checkforrepeatedlistitem
   \ifdim\dimen2<\zeropoint\relax
     \llap{\ifconditional\sublistitem\llap{+}\fi\box8\hskip\leftmargindistance}%
   \else
     \ifdim\dimen2=\zeropoint\relax
       \calculatelistwidth1{\dimen0}%
     \else
       \calculatelistwidth\itemlevel{\dimen0}%
     \fi
     \ifconditional\textlistitem
       \hbox{\ifconditional\sublistitem+\fi\box8\hskip\fontdimen2\font}\nobreak
     \else\ifconditional\inlinelistitem
       \hbox to \dimen0{\ifconditional\sublistitem\llap{+}\fi\box8\hfill}%
     \else\ifconditional\txtlistitem
       \dodotxtitem
       % \hskip-\dimen0 this makes them touch
     \else
       % todo: align+marge binnen de hbox
       \llap{\hbox to \dimen0{\ifconditional\sublistitem\llap{+}\fi\box8\hfill}}%
       \hskip\fullwidth % added for 'repeat' option fix
     \fi\fi\fi
   \fi
\forceunexpanded % needed for m conversion (\os) / i need to look into this
   \setevalue{\@@currentitemsymbol\itemlevel}%
     {\getvalue{\@@localitemsymbol\itemlevel}}% still problems with \uchar ?
    %{\noexpand\getvalue{\@@localitemsymbol\itemlevel}}% no, spoils subrefs
   \resetunexpanded
   \setfalse\headlistitem
   \setfalse\sublistitem
   \setfalse\symbollistitem
   \EveryPar{\ignorespaces}% needed ?
   \ignorespaces}

% I don't think this is the best way but it will require minimal
% change to the original sources.

\def\checkforrepeatedlistitem
 {\global\newdimen\fullwidth
  \ifnum\itemlevel=\plusone
    \initializeboxstack{item}%
  \fi
  \ifconditional\repeatlistitem
     \savebox{item}{\itemlevel}{\hbox{\copy8}}%
     \setbox8\hbox to \wd8
      {\setbox\scratchbox\hbox
         {\scratchcounter\itemlevel
          \advance\scratchcounter\minusone
          \dorecurse\scratchcounter{\foundbox{item}{\recurselevel}}}%
       \ifnum\itemlevel>\plusone
         \ifdim\wd\scratchbox>\zeropoint
           %\hskip-\dimen2
           \global\advance\fullwidth\wd\scratchbox
           \box\scratchbox
         \fi
       \fi
       \box8}%
  \fi}