anchor.diff:      : LBRACE text RBRACE
       ;
   
  -line
  +hline
       : '----'
       ;
   
  
positive.code:     ;
  
  WS
      : [ \r\n\t]
      ;
  
  NOWIKI
  
negative.code: */
  grammar creole;
     
  document
      : (line? CR)*
      ;
  
  line
      : markup+ 
      ;
  
  markup
      : bold
      | italics
      | href
      | title
      | hline
      | text
      | listitem
      | image
      | table
      | nowiki
      ;
      
  text
  