anchor.diff:                                     domainReference
                                      terminatorName
                                      serviceName
  -                                   parameterList
  +                                   parameterList[null]
                                      returnType?
                                      codeBlock         
                                      pragmaList
  
positive.code:                                    eventName                
                                     eventType                
                                     description
                                     parameterList
                                     pragmaList               
                                   )
                                {
                                    t.append( getText( $description.text ) );
                                    t.append( getTab() );
                                    String evt_type = getText( $eventType.text );
                                    if ( !evt_type.isEmpty() ) {
                                        t.append( evt_type + _SPACE );
                                    }
                                    t.append( _EVENT + _SPACE );
                                    t.append( getText( $eventName.text ) );
                                    t.append( _SPACE );
                                    t.append( getText( $parameterList.text ) );
                                    t.append( _SEMI + _NEWLINE );
                                    t.append( getText( $pragmaList.text ) );
  
negative.code:                                    domainReference
                                     terminatorName
                                     serviceName
                                     parameterList[null]
                                     returnType?
                                     codeBlock
                                     pragmaList
  