1 files changed, 8 insertions, 0 deletions
diff --git a/src/mask.h b/src/mask.h
index 23c5cedf..670c1807 100644
--- a/src/mask.h
+++ b/src/mask.h
@@ -72,10 +72,18 @@ public:
 
   mask_t& operator=(const string& other);
 
+  bool operator==(const mask_t& other) const {
+    return expr == other.expr;
+  }
+
   bool match(const string& str) const {
     return boost::regex_search(str, expr);
   }
 
+  bool empty() const {
+    return expr.empty();
+  }
+
   void read(const char *& data);
   void write(std::ostream& out) const;
 };