anchor.diff:  WS
      : [ \t\n\r]+ -> skip
      ;
  +   
  
positive.code: 
  /*
  The MIT License (MIT)
  
  
negative.code:    : STRING # stringValue | NUMBER # numberValue | BOOLEAN # booleanValue | array # arrayValue
     ;
  
  type_
     : typeName nonNullType? | listType nonNullType?
     ;
  
  