anchor.diff:     ;
   
   constraintattributespec
  -   :
  -   | constraintattributespec constraintattributeElem
  +   : constraintattributeElem*
      ;
   
   constraintattributeElem
  
positive.code:    ;
  
  tablelikeoptionlist
     : tablelikeoptionlist (INCLUDING | EXCLUDING) tablelikeoption
     |
     ;
  
  tablelikeoption
  
negative.code:    ;
  
  triggertransitions
     : triggertransition+
     ;
  
  triggertransition
  