From 5bd193e64f4461cb64f86cb65b5adcd94fe75fdd Mon Sep 17 00:00:00 2001
From: Sebastian Harl <sh@tokkee.org>
Date: Sun, 6 Apr 2014 14:17:55 +0200
Subject: [PATCH] frontend: Let the parser support brackets in matcher
 expressions.

---
 src/frontend/grammar.y   | 7 +++++++
 t/frontend/parser_test.c | 4 ++++
 2 files changed, 11 insertions(+)

diff --git a/src/frontend/grammar.y b/src/frontend/grammar.y
index abc5165..4bade3b 100644
--- a/src/frontend/grammar.y
+++ b/src/frontend/grammar.y
@@ -90,6 +90,8 @@ sdb_fe_yyerror(YYLTYPE *lval, sdb_fe_yyscan_t scanner, const char *msg);
 %left AND
 %left CMP_EQUAL
 %left CMP_REGEX
+%left '(' ')'
+%left '.'
 
 %type <list> statements
 %type <node> statement
@@ -266,6 +268,11 @@ expression:
 	;
 
 matcher:
+	'(' matcher ')'
+		{
+			$$ = $2;
+		}
+	|
 	matcher AND matcher
 		{
 			$$ = sdb_store_con_matcher($1, $3);
diff --git a/t/frontend/parser_test.c b/t/frontend/parser_test.c
index 705e732..ffeca8f 100644
--- a/t/frontend/parser_test.c
+++ b/t/frontend/parser_test.c
@@ -153,6 +153,10 @@ START_TEST(test_parse_matcher)
 		  "service.name = 'name' OR "
 		  "attribute.name = 'name' AND "
 		  "attribute.foo = 'bar'",          -1,  MATCHER_OR },
+		{ "(host.name = 'name' OR "
+		  "service.name = 'name') AND "
+		  "(attribute.name = 'name' OR "
+		  "attribute.foo = 'bar')",         -1,  MATCHER_AND },
 
 		/* syntax errors */
 		{ "LIST",                           -1, -1 },
-- 
2.30.2