private ContentElement parseContentElement(SpanManager sm,ContentElementParsingParameters cepp,Span lineSpan){
  LinkedList<Span> lineSpans=new LinkedList<Span>();
  lineSpans.add(lineSpan);
  return parseContentElement(sm,cepp,lineSpans,new ContentElement());
}

private ContentElement parseContentElement ( SpanManager sm , ContentElementParsingParameters cepp , Span lineSpan ) { LinkedList < Span > lineSpans = new LinkedList < Span > ( ) ; lineSpans . add ( lineSpan ) ; return parseContentElement ( sm , cepp , lineSpans , new ContentElement ( ) ) ; }
building a contentelement from a single line .
