--
-- Copyright (C) 1996 Ada Resource Association (ARA), Columbus, Ohio.
-- Author: David A. Wheeler
--
with Ada.Strings.Unbounded;
use Ada.Strings.Unbounded;
package Directions is
type Direction is (North, South, East, West, Up, Down);
Reverse_Direction : constant array(Direction) of Direction :=
(North => South, South => North,
East =>West, West => East,
Up => Down, Down => Up);
function To_Direction(Text : Unbounded_String) return Direction;
-- Converts Text to Direction; raises Constraint_Error if it's not
-- a legal direction.
function Is_Direction(Text : Unbounded_String) return Boolean;
-- Returns TRUE if Text is a direction, else false.
end Directions;
--
-- Permission to use, copy, modify, and distribute this software and its
-- documentation for any purpose and without fee is hereby granted,
-- provided that the above copyright and authorship notice appear in all
-- copies and that both that copyright notice and this permission notice
-- appear in supporting documentation.
--
-- The ARA makes no representations about the suitability of this software
-- for any purpose. It is provided "as is" without express
-- or implied warranty.
--
You may also see the corresponding body.
You may also see the list of program units.
The following compilation units refer to ("with") Package spec Directions:
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