+/*
+ * Retrieve the required language from 'req'.
+ */
+static const char *get_lang(struct afb_req req)
+{
+ const char *lang;
+
+ /* get the optional language */
+ lang = afb_req_value(req, _lang_);
+
+ /* TODO use the req to get the lang of the session (if any) */
+
+ return lang;
+}
+
+