anchor.diff:      
   
   
  -compile_4_test() ->
  +parse_query_4_test() ->
       rivus_cep_compiler:compile("../src/rivus_cep_scanner.xrl","../src/rivus_cep_parser.yrl"),
           {ok, Tokens, Endline} = rivus_cep_scanner:string("define correlation1 as
                                                            select ev1.eventparam1, ev2.eventparam2, ev2.eventparam3, ev1.eventparam2
  
positive.code: 		      {60}]},
  		 rivus_cep_parser:parse(Tokens)).
  
  compile_pattern_test() ->
      rivus_cep_compiler:compile("../src/rivus_cep_scanner.xrl","../src/rivus_cep_parser.yrl"),
          {ok, Tokens, Endline} = rivus_cep_scanner:string("define pattern1 as
                                                           select ev1.eventparam1, ev2.eventparam2, ev2.eventparam3, ev1.eventparam2
  
negative.code: 		      {60}]},
  		 rivus_cep_parser:parse(Tokens)).
  
  parse_query_5_test() ->
      rivus_cep_compiler:compile("../src/rivus_cep_scanner.xrl","../src/rivus_cep_parser.yrl"),
          {ok, Tokens, Endline} = rivus_cep_scanner:string(
  	   "define correlation1 as
  