+void tab_footnote (struct tab_table *, int x, int y, const char *format, ...)
+ PRINTF_FORMAT (4, 5);
+
+void tab_subtable (struct tab_table *, int x1, int y1, int x2, int y2,
+ unsigned opt, struct table_item *subtable);
+void tab_subtable_bare (struct tab_table *, int x1, int y1, int x2, int y2,
+ unsigned opt, struct table_item *subtable);
+