-- This Ada package specification adds palindrome checking,
-- removal of non-letters, and transforming to upper and lower case
-- to the word package.
package WordPkg.Pals is
function isPal(w: Word) return Boolean;
function toUpper(w: Word) return Word;
function removeNonLetter(w: Word) return Word;
procedure toUpper(w: in out Word);
procedure removeNonLetter(w: in out Word);
end WordPkg.Pals;