Fix matcher.

Author: hsluoyz

README.md

@@ -64,7 +64,7 @@ g = _, _
 e = some(where (p.eft == allow))
 
 [matchers]
-m = g(r.sub, p.sub) && r.obj == p.obj && r.act == p.act
+m = (p.sub == "*" || g(r.sub, p.sub)) && r.obj == p.obj && (p.act == "*" || r.act == p.act)
 ```
 Example Policy
 This example file can be found in `tests/casbin_files`

tests/casbin_files/rbac_model.conf

@@ -11,4 +11,4 @@ g = _, _
 e = some(where (p.eft == allow))
 
 [matchers]
-m = g(r.sub, p.sub) && r.obj == p.obj && r.act == p.act
+m = (p.sub == "*" || g(r.sub, p.sub)) && r.obj == p.obj && (p.act == "*" || r.act == p.act)