--- a
+++ b/src/protocolinfo.hxx
@@ -0,0 +1,42 @@
+/* Copyright (C) 2017 J.F.Dockes
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the
+ *   Free Software Foundation, Inc.,
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+#ifndef _PROTOCOLINFO_HX_INCLUDED_
+#define _PROTOCOLINFO_HX_INCLUDED_
+
+#include <string>
+#include <unordered_set>
+
+/**
+ * A small class to handle reading/storing/updating the protocolinfo
+ * data, which is used by a number of services 
+ */
+class Protocolinfo {
+public:
+    static Protocolinfo *the();
+    const std::string& gettext();
+    const std::unordered_set<std::string>& getsupportedformats();
+    bool ok();
+private:
+    class Internal;
+    Internal *m{nullptr};
+
+    Protocolinfo();
+    Protocolinfo(const Protocolinfo &);
+    Protocolinfo& operator=(const Protocolinfo &);
+};
+
+#endif /* _PROTOCOLINFO_HX_INCLUDED_ */