add new matching test

Author: al-pacino

tests/matching.ref

@@ -2,7 +2,7 @@
 
 *-------------------------------------------------
 
-go = <go1>'\n'<go2>'\n'<go3>'\n'<go4>
+go = <go1>'\n'<go2>'\n'<go3>'\n'<go4>'\n'<go5>
 
 *-------------------------------------------------
 
@@ -56,3 +56,10 @@ test44 e('1235')1e('123')2 = '{'e1'}{'e2'}'
 test45 e1e('123')2e('56')3 = '{'e1'}{'e2'}{'e3'}'
 
 *-------------------------------------------------
+
+go5 = <test5 ('abcd')'xx47'>
+
+test5
+	('ab'eCeD)eAeB'47' = '{'eA'}{'eB'}{'eC'}{'eD'}'
+
+*-------------------------------------------------