+#include "data/val-type.h"
+#include "libpspp/str.h"
+
+/* How a format is going to be used. */
+enum fmt_use
+ {
+ FMT_FOR_INPUT, /* For parsing data input, e.g. data_in(). */
+ FMT_FOR_OUTPUT /* For formatting data output, e.g. data_out(). */
+ };