anchor.diff:      | text
       | listitem
       | image
  -    | table
  +    | tablerow
  +    | tableheader
       | nowiki
       ;
       
  
positive.code: 
  RBRACE
      : '}}'
      ;
  
  BAR
      : '|'
      ;
  
  TEXT
  
negative.code: 
  tablerow
      : ('|' markup)+ '|' WS*
      ;
  
  title
  