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-- CXA4012.A

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--                                    DISCLAIMER

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--     PARTICULAR PURPOSE OF SAID MATERIAL.

--*

--

-- OBJECTIVE:

--      Check that the types, operations, and other entities defined within

--      the package Ada.Strings.Wide_Maps are available and produce correct

--      results.

--

-- TEST DESCRIPTION:

--      This test demonstrates the availability and function of the types and

--      operations defined in package Ada.Strings.Wide_Maps.  It demonstrates

--      the use of these types and functions as they would be used in common

--      programming practice.

--      Wide_Character set creation, assignment, and comparison are evaluated

--      in this test.  Each of the functions provided in package

--      Ada.Strings.Wide_Maps is utilized in creating or manipulating set

--      objects, and the function results are evaluated for correctness.

--      Wide_Character sequences are examined using the functions provided for

--      manipulating objects of this type.  Likewise, Wide_Character maps are

--      created, and their contents evaluated.  Exception raising conditions

--      from the function To_Mapping are also created.

--      Note: Throughout this test, the set logical operators are printed in

--      capital letters to enhance their visibility.

--

--

-- CHANGE HISTORY:

--      06 Dec 94   SAIC    ACVC 2.0

--      01 Nov 95   SAIC    Update and repair for ACVC 2.0.1.

--

--!

with Ada.Characters.Handling;

with Ada.Strings.Wide_Maps;

package CXA40120 is

   function Equiv (Ch : Character) return Wide_Character;

   function Equiv (Str : String)

     return Ada.Strings.Wide_Maps.Wide_Character_Sequence;

   function X_Map(From : Wide_Character) return Wide_Character;

end CXA40120;

package body CXA40120 is

   -- The following two functions are used to translate character and string

   -- values to "Wide" values.  They will be applied to certain Wide_Map

   -- subprogram parameters to simulate the use of Wide_Characters and

   -- Wide_Character_Sequences in actual practice.

   -- Note: These functions do not actually return "equivalent" wide

   --       characters to their character inputs, just "non-character"

   --       wide characters.

   function Equiv (Ch : Character) return Wide_Character is

      C : Character := Ch;

   begin

      if Ch = ' ' then

         return Ada.Characters.Handling.To_Wide_Character(C);

      else

         return Wide_Character'Val(Character'Pos(Ch) +

                Character'Pos(Character'Last) + 1);

      end if;

   end Equiv;

   function Equiv (Str : String)

     return Ada.Strings.Wide_Maps.Wide_Character_Sequence is

      use Ada.Strings;

      WS : Wide_Maps.Wide_Character_Sequence(Str'First..Str'Last);

   begin

      for i in Str'First..Str'Last loop

         WS(i) := Equiv(Str(i));

      end loop;

      return WS;

   end Equiv;

   function X_Map(From : Wide_Character) return Wide_Character is

   begin

      return Equiv('X');

   end X_Map;

end CXA40120;

with CXA40120;

with Ada.Characters.Handling;

with Ada.Strings.Wide_Maps;

with Report;

procedure CXA4012 is

   use CXA40120;

   use Ada.Strings;

begin

   Report.Test ("CXA4012", "Check that the types, operations, and other " &

                           "entities defined within the package "         &

                           "Ada.Strings.Wide_Maps are available and "     &

                           "produce correct results");

   Test_Block:

   declare

      use type Wide_Maps.Wide_Character_Set;

      MidPoint_Letter  : constant := 13;

      Last_Letter      : constant := 26;

      Vowels           : constant Wide_Maps.Wide_Character_Sequence :=

                           Equiv("aeiou");

      Quasi_Vowel      : constant Wide_Character := Equiv('y');

      Alphabet         : Wide_Maps.Wide_Character_Sequence(1..Last_Letter);

      Half_Alphabet    : Wide_Maps.Wide_Character_Sequence(1..MidPoint_Letter);

      Inverse_Alphabet : Wide_Maps.Wide_Character_Sequence(1..Last_Letter);

      Alphabet_Set,

      Consonant_Set,

      Vowel_Set,

      Full_Vowel_Set,

      First_Half_Set,

      Second_Half_Set : Wide_Maps.Wide_Character_Set := Wide_Maps.Null_Set;

   begin

      -- Load the alphabet string for use in creating sets.

      for i in 0..MidPoint_Letter-1 loop

         Half_Alphabet(i+1) :=

           Wide_Character'Val(Wide_Character'Pos(Equiv('a')) + i);

      end loop;

      for i in 0..Last_Letter-1 loop

         Alphabet(i+1) :=

           Wide_Character'Val(Wide_Character'Pos(Equiv('a')) + i);

      end loop;

      -- Initialize a series of Wide_Character_Set objects.

      Alphabet_Set    := Wide_Maps.To_Set(Alphabet);

      Vowel_Set       := Wide_Maps.To_Set(Vowels);

      Full_Vowel_Set  := Vowel_Set   OR  Wide_Maps.To_Set(Quasi_Vowel);

      Consonant_Set   := Vowel_Set  XOR  Alphabet_Set;

      First_Half_Set  := Wide_Maps.To_Set(Half_Alphabet);

      Second_Half_Set := Alphabet_Set  XOR  First_Half_Set;

      -- Evaluation of Set objects, operators, and functions.

      if Alphabet_Set /= (Vowel_Set OR Consonant_Set) then

         Report.Failed("Incorrect set combinations using OR operator");

      end if;

      for i in Vowels'First .. Vowels'Last loop

         if not Wide_Maps.Is_In(Vowels(i), Vowel_Set)    or

            not Wide_Maps.Is_In(Vowels(i), Alphabet_Set) or

            Wide_Maps.Is_In(Vowels(i), Consonant_Set)

         then

            Report.Failed("Incorrect function Is_In use with set " &

                          "combinations - " & Integer'Image(i));

         end if;

      end loop;

      if Wide_Maps.Is_Subset(Vowel_Set, First_Half_Set)    or

         Wide_Maps."<="(Vowel_Set, Second_Half_Set)        or

         not Wide_Maps.Is_Subset(Vowel_Set, Alphabet_Set)

      then

         Report.Failed

           ("Incorrect set evaluation using Is_Subset function");

      end if;

      if not (Full_Vowel_Set = Wide_Maps.To_Set(Equiv("aeiouy"))) then

         Report.Failed("Incorrect result for ""="" set operator");

      end if;

      if not ((Vowel_Set AND First_Half_Set) OR

              (Full_Vowel_Set AND Second_Half_Set)) = Full_Vowel_Set then

         Report.Failed

           ("Incorrect result for AND, OR, or ""="" set operators");

      end if;

      if (Alphabet_Set AND Wide_Maps.Null_Set) /= Wide_Maps.Null_Set  or

         (Alphabet_Set OR  Wide_Maps.Null_Set) /= Alphabet_Set

      then

         Report.Failed("Incorrect result for AND or OR set operators");

      end if;

      Vowel_Set := Full_Vowel_Set;

      Vowel_Set := Vowel_Set AND (NOT Wide_Maps.To_Set(Quasi_Vowel));

      if not (Vowels = Wide_Maps.To_Sequence(Vowel_Set)) then

         Report.Failed("Incorrect Set to Sequence translation");

      end if;

      for i in 0..Last_Letter-1 loop

         Inverse_Alphabet(i+1) := Alphabet(Last_Letter-i);

      end loop;

      -- Wide_Character_Mapping

      declare

         Inverse_Map : Wide_Maps.Wide_Character_Mapping :=

                         Wide_Maps.To_Mapping(Alphabet, Inverse_Alphabet);

      begin

         if Wide_Maps.Value(Wide_Maps.Identity, Equiv('b')) /=

            Wide_Maps.Value(Inverse_Map, Equiv('y'))

         then

            Report.Failed("Incorrect Inverse mapping");

         end if;

      end;

      -- Check that Translation_Error is raised when a character is

      -- repeated in the parameter "From" string.

      declare

         Bad_Map : Wide_Maps.Wide_Character_Mapping;

      begin

         Bad_Map := Wide_Maps.To_Mapping(From => Equiv("aa"),

                                         To   => Equiv("yz"));

         Report.Failed("Exception not raised with repeated character");

      exception

         when Translation_Error => null;  -- OK

         when others            =>

            Report.Failed("Incorrect exception raised in To_Mapping with " &

                          "a repeated character");

      end;

      -- Check that Translation_Error is raised when the parameters of the

      -- function To_Mapping are of unequal lengths.

      declare

         Bad_Map : Wide_Maps.Wide_Character_Mapping;

      begin

         Bad_Map := Wide_Maps.To_Mapping(Equiv("abc"), Equiv("yz"));

         Report.Failed

           ("Exception not raised with unequal parameter lengths");

      exception

         when Translation_Error => null;  -- OK

         when others            =>

            Report.Failed("Incorrect exception raised in To_Mapping with " &

                          "unequal parameter lengths");

      end;

      -- Check that the access-to-subprogram type is defined and available.

      -- This provides for one Wide_Character mapping capability only.

      -- The actual mapping functionality will be tested in conjunction with

      -- the tests of subprograms defined for Wide_String handling.

      declare

         X_Map_Ptr : Wide_Maps.Wide_Character_Mapping_Function :=

                       X_Map'Access;

      begin

         if X_Map_Ptr(Equiv('A')) /=    -- both return 'X'

            X_Map_Ptr.all(Equiv('Q'))

         then

            Report.Failed

              ("Incorrect result using access-to-subprogram values");

         end if;

      end;

   exception

      when others => Report.Failed ("Exception raised in Test_Block");

   end Test_Block;

   Report.Result;

end CXA4012;