anchor.diff:  
   setattrStmt : SETATTR WS valueStmt WS? ',' WS? valueStmt;
   
  -setStmt : SET WS implicitCallStmt_Value WS? EQ WS? valueStmt;
  +setStmt : SET WS implicitCallStmt_Value_InStmt WS? EQ WS? valueStmt;
   
   stopStmt : STOP;
   
  
positive.code: widthStmt : WIDTH WS valueStmt WS? ',' WS? valueStmt;
  
  withStmt : 
  	WITH WS implicitCallStmt_Value NEWLINE+ 
  	(block NEWLINE+)? 
  	END_WITH
  ;
  
negative.code: 
  rmdirStmt : RMDIR WS valueStmt;
  
  rsetStmt : RSET WS implicitCallStmt_Value_InStmt WS? EQ WS? valueStmt;
  
  savepictureStmt : SAVEPICTURE WS valueStmt WS? ',' WS? valueStmt;
  
  