--- /dev/null
+/*
+ * Copyright (C) 1984-2011 Mark Nudelman
+ *
+ * You may distribute under the terms of either the GNU General Public
+ * License or the Less License, as specified in the README file.
+ *
+ * For more information about less, or for information on how to
+ * contact the author, see the README file.
+ */
+
+
+/*
+ * Include file for interfacing to position.c modules.
+ */
+#define TOP (0)
+#define TOP_PLUS_ONE (1)
+#define BOTTOM (-1)
+#define BOTTOM_PLUS_ONE (-2)
+#define MIDDLE (-3)