1 files changed, 11 insertions, 0 deletions
diff --git a/tag.h b/tag.h
index 83a1f6d..e844500 100644
--- a/tag.h
+++ b/tag.h
@@ -1,13 +1,24 @@
 #ifndef TAG_H
 #define TAG_H
 
+#include <boost/shared_ptr.hpp>
+
 #include <string>
 #include <map>
 
 class Tag {
 	public:
+		typedef boost::shared_ptr<Tag> p;
 		typedef std::map<std::string, std::string> Fields;
+
+		//! Tag fields.
 		Fields fields;
+
+		//! Generic tag loader.
+		static p load(const std::string filename);
+
+		//! Check for the existence of a specific field.
+		bool has_field(const std::string name);
 };
 
 class ID3Tag : public Tag {