anchor.diff:   * #L%
    */
   grammar VTL;
  -
  -import Atoms, Clauses, Conditional, Relational;
  -
   start : statement+ EOF;
   
   /* Assignment */
  
positive.code: WS : [ \n\r\t\u000C] -> skip ;
  COMMENT : '/*' .*? '*/' -> skip;
  
  
negative.code:  * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  