+
+/**
+ * modest_text_utils_validate_folder_name:
+ * @folder_name: a string
+ *
+ * validates the folder name passed as argument. a 'valid folder name'
+ * is a name which should be valid on both Unix and Windows file systems.
+ * of course, this might be stricter than strictly needed in some cases,
+ * but it's better to err on the safe side.
+ *
+ * Returns: TRUE if the folder name is valid, FALSE otherwise
+ **/
+gboolean modest_text_utils_validate_folder_name (const gchar *folder_name);
+