remove a redundant rule

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@24426 65c4cc65-6c06-0410-ace0-fbb531ad65f3

pbx/ael/ael.y

@@ -121,7 +121,6 @@ static pval *update_last(pval *, YYLTYPE *);
 %type <pval>switchlist_block
 %type <pval>timespec
 %type <pval>included_entry
-%type <pval>opt_statements
 
 %type <str>opt_word
 %type <str>context_name
@@ -170,7 +169,6 @@ static pval *update_last(pval *, YYLTYPE *);
 		opt_else
 		elements_block switchlist_block
 		timespec included_entry
-		opt_statements
 
 %destructor { free($$);}  word word_list goto_word word3_list opt_word context_name
 		timerange
@@ -282,8 +280,9 @@ extension : word EXTENMARK statement {
 
 	;
 
-statements : statement {$$=$1;}
-	| statements statement { $$ = linku1($1, $2); }
+/* list of statements in a block or after a case label - can be empty */
+statements : /* empty */ { $$ = NULL; }
+	| statement statements { $$ = linku1($1, $2); }
 	| statements error {$$=$1;}
 	;
 
@@ -541,24 +540,18 @@ eval_arglist :  word_list { $$ = nword($1, &@1); }
 	;
 
 case_statements: /* empty */ { $$ = NULL; }
-	| case_statement {$$=$1;}
-	| case_statements case_statement { $$ = linku1($1, $2); }
+	| case_statement case_statements { $$ = linku1($1, $2); }
 	;
 
-/* statement in a switch body after a label */
-opt_statements : { $$ = NULL; }
-	| statements { $$ = $1; }
-	;
-
-case_statement: KW_CASE word COLON opt_statements {
+case_statement: KW_CASE word COLON statements {
 		$$ = npval2(PV_CASE, &@1, &@3); /* XXX 3 or 4 ? */
 		$$->u1.str = $2;
 		$$->u2.statements = $4;}
-	| KW_DEFAULT COLON opt_statements {
+	| KW_DEFAULT COLON statements {
 		$$ = npval2(PV_DEFAULT, &@1, &@3);
 		$$->u1.str = NULL;
 		$$->u2.statements = $3;}
-	| KW_PATTERN word COLON opt_statements {
+	| KW_PATTERN word COLON statements {
 		$$ = npval2(PV_PATTERN, &@1, &@4); /* XXX@3 or @4 ? */
 		$$->u1.str = $2;
 		$$->u2.statements = $4;}