const struct fmt_spec *fmt = var_get_write_format (var);
enum fmt_category fc = fmt_get_category (fmt->type);
assert ( fc != FMT_CAT_STRING);
const struct fmt_spec *fmt = var_get_write_format (var);
enum fmt_category fc = fmt_get_category (fmt->type);
assert ( fc != FMT_CAT_STRING);