louloulibs is directly included, instead of being a submodule

Because this is a nightmare to manage

louloulibs/xmpp/jid.hpp

@@ -0,0 +1,36 @@
+#ifndef JID_INCLUDED
+# define JID_INCLUDED
+
+#include <string>
+
+/**
+ * Parse a JID into its different subart
+ */
+class Jid
+{
+public:
+  explicit Jid(const std::string& jid);
+
+  std::string domain;
+  std::string local;
+  std::string resource;
+
+private:
+  Jid(const Jid&) = delete;
+  Jid(Jid&&) = delete;
+  Jid& operator=(const Jid&) = delete;
+  Jid& operator=(Jid&&) = delete;
+};
+
+/**
+ * Prepare the given UTF-8 string according to the XMPP node stringprep
+ * identifier profile.  This is used to send properly-formed JID to the XMPP
+ * server.
+ *
+ * If the stringprep library is not found, we return an empty string.  When
+ * this function is used, the result must always be checked for an empty
+ * value, and if this is the case it must not be used as a JID.
+ */
+std::string jidprep(const std::string& original);
+
+#endif // JID_INCLUDED