-- CXA4019.A
--
--                             Grant of Unlimited Rights
--
--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained 
--     unlimited rights in the software and documentation contained herein.
--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making 
--     this public release, the Government intends to confer upon all 
--     recipients unlimited rights  equal to those held by the Government.  
--     These rights include rights to use, duplicate, release or disclose the 
--     released technical data and computer software in whole or in part, in 
--     any manner and for any purpose whatsoever, and to have or permit others 
--     to do so.
--
--                                    DISCLAIMER
--
--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED 
--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE 
--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
--     PARTICULAR PURPOSE OF SAID MATERIAL.
--*
--
-- OBJECTIVE:
--      Check that the subprograms defined in package Ada.Strings.Wide_Bounded
--      are available, and that they produce correct results, especially 
--      under conditions where truncation of the result is required.  
--      Specifically, check the subprograms Append, Count with non-Identity
--      maps, Index with non-Identity maps, Index with Set parameters, 
--      Insert (function and procedure), Replace_Slice (function and 
--      procedure), To_Bounded_Wide_String, and Translate (function and 
--      procedure).
--
-- TEST DESCRIPTION:
--      This test, in conjunction with tests CXA4017, CXA4018, and CXA4020, 
--      will provide coverage of the most common usages of the functionality
--      found in the Ada.Strings.Wide_Bounded package.  It deals in large part
--      with truncation effects and options.  This test contains many small, 
--      specific test cases, situations that are often difficult to generate 
--      in large numbers in an application-based test.  These cases represent 
--      specific usage paradigms in-the-small.
--
--       
-- CHANGE HISTORY:
--      06 Dec 94   SAIC    ACVC 2.0
--      06 Nov 95   SAIC    Corrected expected result string in subtest for
--                          ACVC 2.0.1.
--                          Moved function Dog_to_Cat_Mapping to library
--                          level to correct accessibility problem in test.
--      22 Aug 96   SAIC    Corrected three subtests identified in reviewer
--                          comments.
--      17 Feb 97   PWB.CTA Corrected result strings for Translate and Insert
--
--!

package CXA40190 is

   -- Wide Character mapping function defined for use with specific 
   -- versions of functions Index and Count.

   function Dog_to_Cat_Mapping (From : Wide_Character) 
        return Wide_Character;

end CXA40190;

package body CXA40190 is

   -- Translates "dog" to "cat".
   function Dog_to_Cat_Mapping (From : Wide_Character) 
     return Wide_Character is
   begin
      if From = 'd' then
         return 'c';
      elsif From = 'o' then
         return 'a';
      elsif From = 'g' then
         return 't';
      else
         return From;
      end if;
   end Dog_to_Cat_Mapping;

end CXA40190;


with CXA40190;
with Report;
with Ada.Characters.Handling;
with Ada.Strings.Wide_Bounded;
with Ada.Strings.Wide_Maps;
with Ada.Strings.Wide_Maps.Wide_Constants;

procedure CXA4019 is

   -- The following two functions are used to translate character and string 
   -- values to "Wide" values.  They will be applied to all the Wide_Bounded
   -- subprogram parameters to simulate the use of Wide_Characters and 
   -- Wide_Strings in actual practice.

   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 Wide_String is
      WS : Wide_String(Str'First..Str'Last);
   begin
      for i in Str'First..Str'Last loop
         WS(i) := Equiv(Str(i));
      end loop;
      return WS;
   end Equiv;

begin

   Report.Test("CXA4019", "Check that the subprograms defined in "      &
                          "package Ada.Strings.Wide_Bounded are "       &
                          "available, and that they produce correct "   &
                          "results, especially under conditions where " &
                          "truncation of the result is required");

   Test_Block:
   declare

      use CXA40190;

      package AS   renames Ada.Strings;
      package ASB  renames Ada.Strings.Wide_Bounded;
      package ASWC renames Ada.Strings.Wide_Maps.Wide_Constants;
      package Maps renames Ada.Strings.Wide_Maps;

      package B10 is new ASB.Generic_Bounded_Length(Max => 10);
      use type B10.Bounded_Wide_String;

      Result_String : B10.Bounded_Wide_String;
      Test_String   : B10.Bounded_Wide_String;
      AtoE_Bnd_Str  : B10.Bounded_Wide_String := 
                        B10.To_Bounded_Wide_String(Equiv("abcde"));
      FtoJ_Bnd_Str  : B10.Bounded_Wide_String := 
                        B10.To_Bounded_Wide_String(Equiv("fghij"));
      AtoJ_Bnd_Str  : B10.Bounded_Wide_String := 
                        B10.To_Bounded_Wide_String(Equiv("abcdefghij"));

      Location     : Natural := 0;
      Total_Count  : Natural := 0;

      CD_Set       : Maps.Wide_Character_Set := Maps.To_Set("cd"); 
      Wide_CD_Set  : Maps.Wide_Character_Set := Maps.To_Set(Equiv("cd")); 

      AB_to_YZ_Map : Maps.Wide_Character_Mapping :=
                     Maps.To_Mapping(From => "ab", To => "yz");

      Wide_AB_to_YZ_Map : Maps.Wide_Character_Mapping :=
                          Maps.To_Mapping(From => Equiv("ab"),  
                                          To   => Equiv("yz"));

      CD_to_XY_Map : Maps.Wide_Character_Mapping :=
                       Maps.To_Mapping(From => "cd", To => "xy");

      Wide_CD_to_XY_Map : Maps.Wide_Character_Mapping :=
                          Maps.To_Mapping(From => Equiv("cd"),  
                                          To   => Equiv("xy"));


      -- Access-to-Subprogram object defined for use with specific versions of 
      -- functions Index, Count Translate, and procedure Translate.

      Map_Ptr : Maps.Wide_Character_Mapping_Function := 
                  Dog_to_Cat_Mapping'Access;


   begin

      -- Function To_Bounded_Wide_String with Truncation 
      -- Evaluate the function Append with parameters that will 
      -- cause the truncation of the result.

      -- Drop = Error (default case, Length_Error will be raised)

      begin
         Test_String := 
           B10.To_Bounded_Wide_String
             (Equiv("Much too long for this bounded wide string"));
         Report.Failed("Length Error not raised by To_Bounded_Wide_String");
      exception
         when AS.Length_Error => null;  -- Expected exception raised.
         when others          =>
           Report.Failed
            ("Incorrect exception raised by To_Bounded_Wide_String");
      end;

      -- Drop = Left 

      Test_String := 
        B10.To_Bounded_Wide_String(Source => Equiv("abcdefghijklmn"),
                                   Drop   => Ada.Strings.Left);

      if Test_String /= B10.To_Bounded_Wide_String(Equiv("efghijklmn")) then
         Report.Failed
           ("Incorrect result from To_Bounded_Wide_String, Drop = Left");
      end if;

      -- Drop = Right 

      Test_String := 
        B10.To_Bounded_Wide_String(Source => Equiv("abcdefghijklmn"),
                                   Drop   => Ada.Strings.Right);

      if not(Test_String = AtoJ_Bnd_Str) then
         Report.Failed
           ("Incorrect result from To_Bounded_Wide_String, Drop = Right");
      end if;


      -- Function Append with Truncation 
      -- Evaluate the function Append with parameters that will 
      -- cause the truncation of the result.

      -- Drop = Error (default case, Length_Error will be raised)

      begin
         -- Append (Bnd Str, Bnd Str);
         Result_String := 
           B10.Append(B10.To_Bounded_Wide_String(Equiv("abcde")),
                      B10.To_Bounded_Wide_String(Equiv("fghijk"))); -- 11 char
         Report.Failed("Length_Error not raised by Append - 1");
      exception
         when AS.Length_Error => null;   -- OK, correct exception raised.
         when others          =>
            Report.Failed("Incorrect exception raised by Append - 1");
      end;

      begin
         -- Append (Str, Bnd Str);
         Result_String := 
           B10.Append(B10.To_Wide_String(AtoE_Bnd_Str),
                      B10.To_Bounded_Wide_String(Equiv("fghijk")), 
                      AS.Error); 
         Report.Failed("Length_Error not raised by Append - 2");
      exception
         when AS.Length_Error => null;   -- OK, correct exception raised.
         when others          =>
            Report.Failed("Incorrect exception raised by Append - 2");
      end;

      begin
         -- Append (Bnd Str, Char);
         Result_String := 
           B10.Append(B10.To_Bounded_Wide_String("abcdefghij"), 'k');
         Report.Failed("Length_Error not raised by Append - 3");
      exception
         when AS.Length_Error => null;   -- OK, correct exception raised.
         when others          =>
            Report.Failed("Incorrect exception raised by Append - 3");
      end;

      -- Drop = Left 

      -- Append (Bnd Str, Bnd Str)
      Result_String := 
        B10.Append(B10.To_Bounded_Wide_String(Equiv("abcdefgh")), -- 8 chs
                   B10.To_Bounded_Wide_String(Equiv("ijklmn")),   -- 6 chs
                   Ada.Strings.Left);

      if Result_String /= 
         B10.To_Bounded_Wide_String(Equiv("efghijklmn"))  -- 10 chars
      then
         Report.Failed("Incorrect truncation performed by Append - 4");
      end if;

      -- Append (Bnd Str, Str)
      Result_String := 
        B10.Append(B10.To_Bounded_Wide_String("abcdefghij"), 
                   "xyz",
                   Ada.Strings.Left);

      if Result_String /= B10.To_Bounded_Wide_String("defghijxyz") then
         Report.Failed("Incorrect truncation performed by Append - 5");
      end if;

      -- Append (Char, Bnd Str)

      Result_String := 
        B10.Append(Equiv('A'), 
                   B10.To_Bounded_Wide_String(Equiv("abcdefghij")),
                   Ada.Strings.Left);

      if Result_String /= B10.To_Bounded_Wide_String(Equiv("abcdefghij")) 
      then
         Report.Failed("Incorrect truncation performed by Append - 6");
      end if;

      -- Drop = Right 

      -- Append (Bnd Str, Bnd Str)
      Result_String := B10.Append(FtoJ_Bnd_Str, 
                                  AtoJ_Bnd_Str,
                                  Ada.Strings.Right);

      if Result_String /= 
         B10.To_Bounded_Wide_String(Equiv("fghijabcde")) 
      then
         Report.Failed("Incorrect truncation performed by Append - 7");
      end if;

      -- Append (Str, Bnd Str)
      Result_String := B10.Append(B10.To_Wide_String(AtoE_Bnd_Str), 
                                  AtoJ_Bnd_Str,
                                  Ada.Strings.Right);

      if Result_String /= 
         B10.To_Bounded_Wide_String(Equiv("abcdeabcde")) 
      then
         Report.Failed("Incorrect truncation performed by Append - 8");
      end if;

      -- Append (Char, Bnd Str)
      Result_String := B10.Append(Equiv('A'), AtoJ_Bnd_Str, Ada.Strings.Right);

      if Result_String /= B10.To_Bounded_Wide_String(Equiv("Aabcdefghi")) then
         Report.Failed("Incorrect truncation performed by Append - 9");
      end if;


      -- Function Index with non-Identity map. 
      -- Evaluate the function Index with a non-identity map 
      -- parameter which will cause mapping of the source parameter 
      -- prior to the evaluation of the index position search.

      Location := 
        B10.Index(Source  => B10.To_Bounded_Wide_String("foxy fox 2"),
                  Pattern => "FOX",
                  Going   => Ada.Strings.Backward,
                  Mapping => ASWC.Upper_Case_Map);

      if Location /= 6 then
         Report.Failed("Incorrect result from Index, non-Identity map - 1");
      end if;

      Location := 
        B10.Index(B10.To_Bounded_Wide_String("THE QUICK "),
                  "quick",
                  Ada.Strings.Forward,
                  Ada.Strings.Wide_Maps.Wide_Constants.Lower_Case_Map);

      if Location /= 5 then
         Report.Failed("Incorrect result from Index, non-Identity map - 2");
      end if;

      Location := B10.Index(Source  => B10.To_Bounded_Wide_String("The the"),
                            Pattern => "the",
                            Going   => Ada.Strings.Forward,
                            Mapping => ASWC.Lower_Case_Map); 

      if Location /= 1 then
         Report.Failed("Incorrect result from Index, non-Identity map - 3");
      end if;


      if B10.Index(B10.To_Bounded_Wide_String("abcd"),   -- Pattern = Source
                   "abcd")                       /= 1 or
         B10.Index(B10.To_Bounded_Wide_String("abc"),    -- Pattern < Source
                   "abcd")                       /= 0 or
         B10.Index(B10.Null_Bounded_Wide_String,         -- Source = Null
                   "abc")                        /= 0 
      then
         Report.Failed("Incorrect result from Index with string patterns");
      end if;


      -- Function Index with access-to-subprogram mapping value. 
      -- Evaluate the function Index with a wide character mapping function
      -- object that performs the mapping operation.

      Location := B10.Index(Source  => B10.To_Bounded_Wide_String("My dog"),
                            Pattern => "cat",
                            Going   => Ada.Strings.Forward,
                            Mapping => Map_Ptr);  -- change "dog" to "cat"

      if Location /= 4 then
         Report.Failed("Incorrect result from Index, w/map ptr - 1");
      end if;

      Location := B10.Index(B10.To_Bounded_Wide_String("cat or dog"),
                            "cat",
                            Ada.Strings.Backward,
                            Map_Ptr);   

      if Location /= 8 then
         Report.Failed("Incorrect result from Index, w/map ptr - 2");
      end if;

      if B10.Index(B10.To_Bounded_Wide_String("dog"),   -- Pattern = Source
                   "cat",
                   Ada.Strings.Forward,
                   Map_Ptr)                            /= 1 or
         B10.Index(B10.To_Bounded_Wide_String("dog"),    -- Pattern < Source
                   "cats",
                   Ada.Strings.Backward,
                   Map_Ptr)                            /= 0 or
         B10.Index(B10.Null_Bounded_Wide_String,         -- Source = Null
                   "cat",
                   Ada.Strings.Forward,
                   Map_Ptr)                            /= 0 or
         B10.Index(B10.To_Bounded_Wide_String("hot dog"),
                   "dog",
                   Ada.Strings.Backward,
                   Map_Ptr)                            /= 0 or
         B10.Index(B10.To_Bounded_Wide_String(" cat dog "),
                   " cat",
                   Ada.Strings.Backward,
                   Map_Ptr)                           /= 5 or
         B10.Index(B10.To_Bounded_Wide_String("dog CatDog"),
                   "cat",
                   Ada.Strings.Backward,
                   Map_Ptr)                           /= 1 or
         B10.Index(B10.To_Bounded_Wide_String("CatandDog"),
                   "cat",
                   Ada.Strings.Forward,
                   Map_Ptr)                           /= 0 or
         B10.Index(B10.To_Bounded_Wide_String("dddd"),
                   "ccccc",
                   Ada.Strings.Backward,
                   Map_Ptr)                           /= 0
      then
         Report.Failed("Incorrect result from Index w/map ptr - 3");
      end if;


      -- Function Index (for Sets).           
      -- This version of Index uses Sets as the basis of the search.

      -- Test = Inside, Going = Forward  (Default case).
      Location := 
        B10.Index(Source => B10.To_Bounded_Wide_String(Equiv("abcdeabcde")),
                  Set    => Wide_CD_Set, 
                  Test   => Ada.Strings.Inside,
                  Going  => Ada.Strings.Forward);

      if not (Location = 3) then -- position of first 'c' equivalent in source.
         Report.Failed("Incorrect result from Index using Sets - 1");
      end if;

      -- Test = Inside, Going = Backward.
      Location := 
        B10.Index(Source => B10."&"(AtoE_Bnd_Str, AtoE_Bnd_Str), 
                  Set    => Wide_CD_Set, 
                  Test   => Ada.Strings.Inside,
                  Going  => Ada.Strings.Backward);

      if not (Location = 9) then   -- position of last 'd' in source.
         Report.Failed("Incorrect result from Index using Sets - 2");
      end if;

      -- Test = Outside, Going = Forward.
      Location := B10.Index(B10.To_Bounded_Wide_String("deddacd"),  
                            CD_Set,
                            Test  => Ada.Strings.Outside,
                            Going => Ada.Strings.Forward);

      if Location /= 2  then  -- position of 'e' in source.
         Report.Failed("Incorrect result from Index using Sets - 3");
      end if;

      -- Test = Outside, Going = Backward.
      Location := B10.Index(B10.To_Bounded_Wide_String(Equiv("deddacd")),
                            Wide_CD_Set,
                            Ada.Strings.Outside,
                            Ada.Strings.Backward);

      if Location /= 5 then    -- position of 'a', correct.
         Report.Failed("Incorrect result from Index using Sets - 4");
      end if;

      if B10.Index(B10.To_Bounded_Wide_String("cd"),   -- Source = Set
                   CD_Set)                     /= 1 or
         B10.Index(B10.To_Bounded_Wide_String("c"),    -- Source < Set
                   CD_Set)                     /= 1 or
         B10.Index(B10.Null_Bounded_Wide_String,       -- Source = Null
                   Wide_CD_Set)                /= 0 or
         B10.Index(AtoE_Bnd_Str,
                   Maps.To_Set('x'))           /= 0    -- No match.
      then
         Report.Failed("Incorrect result from Index using Sets - 5");
      end if;


      -- Function Count with non-Identity mapping. 
      -- Evaluate the function Count with a non-identity map 
      -- parameter which will cause mapping of the source parameter 
      -- prior to the evaluation of the number of matching patterns.

      Total_Count := 
        B10.Count(Source  => B10.To_Bounded_Wide_String("THE THE TH"),
                  Pattern => "th",
                  Mapping => ASWC.Lower_Case_Map);

      if Total_Count /= 3 then    
         Report.Failed
           ("Incorrect result from function Count, non-Identity map - 1");
      end if;

      -- And a few with identity maps as well.

      if B10.Count(B10.To_Bounded_Wide_String(Equiv("ABABABABAB")),
                   Equiv("ABA"),
                   Maps.Identity)                       /= 2 or
         B10.Count(B10.To_Bounded_Wide_String("ADCBADABCD"),
                   "AB",
                   Maps.To_Mapping("CD", "AB"))         /= 5 or
         B10.Count(B10.To_Bounded_Wide_String(Equiv("aaaaaaaaaa")),
                   Equiv("aaa"))                        /= 3 or
         B10.Count(B10.To_Bounded_Wide_String(Equiv("XX")),
                   Equiv("XXX"),
                   Maps.Identity)                       /= 0 or
         B10.Count(AtoE_Bnd_Str,                        -- Source = Pattern
                   Equiv("abcde"))                      /= 1 or
         B10.Count(B10.Null_Bounded_Wide_String,        -- Source = Null
                   " ")                                 /= 0
      then
         Report.Failed
           ("Incorrect result from function Count, w,w/o mapping");
      end if;
                                         

      -- Function Count with access-to-subprogram mapping. 
      -- Evaluate the version function Count that uses an access-to-subprogram
      -- map parameter.

      Total_Count := 
        B10.Count(Source  => B10.To_Bounded_Wide_String("dogdogdo"),
                  Pattern => "ca",
                  Mapping => Map_Ptr);

      if Total_Count /= 3 then    
         Report.Failed
           ("Incorrect result from function Count, w/map ptr - 1");
      end if;


      if B10.Count(B10.To_Bounded_Wide_String("DdOoGgod"),
                   "c",
                   Map_Ptr)                                 /= 2 or
         B10.Count(B10.To_Bounded_Wide_String("dododododo"),
                   "do",
                   Map_Ptr)                                 /= 0 or
         B10.Count(B10.To_Bounded_Wide_String("Dog or dog"),
                   "cat",
                   Map_Ptr)                                 /= 1 or
         B10.Count(B10.To_Bounded_Wide_String("dddddddddd"),
                   "ccccc",
                   Map_Ptr)                                 /= 2 or
         B10.Count(B10.To_Bounded_Wide_String("do"),    -- Source < Pattern
                   "cat",
                   Map_Ptr)                                 /= 0 or
         B10.Count(B10.To_Bounded_Wide_String(" dog "), -- Source = Pattern
                   " cat ",
                   Map_Ptr)                                 /= 1 or
         B10.Count(B10.Null_Bounded_Wide_String,        -- Source = Null
                   " ",
                   Map_Ptr)                                 /= 0
      then
         Report.Failed
           ("Incorrect result from function Count, w/map ptr - 2");
      end if;


      -- Procedure Translate   

      -- Partial mapping of source.

      Test_String := B10.To_Bounded_Wide_String("abcdeabcab");

      B10.Translate(Source => Test_String, Mapping => AB_to_YZ_Map);

      if Test_String /= B10.To_Bounded_Wide_String("yzcdeyzcyz") then
         Report.Failed("Incorrect result from procedure Translate - 1");
      end if;

      -- Total mapping of source.

      Test_String := B10.To_Bounded_Wide_String("abbaaababb");

      B10.Translate(Source => Test_String, Mapping => ASWC.Upper_Case_Map);

      if Test_String /= B10.To_Bounded_Wide_String("ABBAAABABB") then
         Report.Failed("Incorrect result from procedure Translate - 2");
      end if;

      -- No mapping of source.

      Test_String := B10.To_Bounded_Wide_String(Equiv("xyzsypcc"));

      B10.Translate(Source => Test_String, Mapping => Wide_AB_to_YZ_Map);

      if Test_String /= B10.To_Bounded_Wide_String(Equiv("xyzsypcc")) then
         Report.Failed("Incorrect result from procedure Translate - 3");
      end if;

      -- Map > 2 characters, partial mapping.

      Test_String := B10.To_Bounded_Wide_String("opabcdelmn");

      B10.Translate(Test_String, 
                    Maps.To_Mapping("abcde", "lmnop"));

      if Test_String /= B10.To_Bounded_Wide_String("oplmnoplmn") then
         Report.Failed("Incorrect result from procedure Translate - 4");
      end if;


      -- Procedure Translate with access-to-subprogram mapping.
      -- Use the version of Procedure Translate that takes an
      -- access-to-subprogram parameter to perform the Source mapping.

      -- Partial mapping of source.

      Test_String := B10.To_Bounded_Wide_String("dogeatdog");

      B10.Translate(Source => Test_String, Mapping => Map_Ptr);

      if Test_String /= B10.To_Bounded_Wide_String("cateatcat") then
         Report.Failed
           ("Incorrect result from procedure Translate w/map ptr - 1");
      end if;

      Test_String := B10.To_Bounded_Wide_String("odogcatlmn");

      B10.Translate(Test_String, Map_Ptr);

      if Test_String /= B10.To_Bounded_Wide_String("acatcatlmn") then
         Report.Failed
           ("Incorrect result from procedure Translate w/map ptr - 2");
      end if;


      -- Total mapping of source.

      Test_String := B10.To_Bounded_Wide_String("gggooooddd");

      B10.Translate(Source => Test_String, Mapping => Map_Ptr);

      if Test_String /= B10.To_Bounded_Wide_String("tttaaaaccc") then
         Report.Failed
           ("Incorrect result from procedure Translate w/map ptr- 3");
      end if;

      -- No mapping of source.

      Test_String := B10.To_Bounded_Wide_String(" DOG cat ");

      B10.Translate(Source => Test_String, Mapping => Map_Ptr);

      if Test_String /= B10.To_Bounded_Wide_String(" DOG cat ") then
         Report.Failed
           ("Incorrect result from procedure Translate w/map ptr - 4");
      end if;

      Test_String := B10.Null_Bounded_Wide_String;

      B10.Translate(Source => Test_String, Mapping => Map_Ptr);

      if Test_String /= B10.To_Bounded_Wide_String("") then
         Report.Failed
           ("Incorrect result from procedure Translate w/map ptr - 5");
      end if;


      -- Function Translate with access-to-subprogram mapping.
      -- Use the version of Function Translate that takes an
      -- access-to-subprogram parameter to perform the Source mapping.

      -- Partial mapping of source.

      if B10.Translate(Source  => B10.To_Bounded_Wide_String("cateatdog"),
                       Mapping => Map_Ptr) /= 
         B10.To_Bounded_Wide_String("cateatcat") 
      then
         Report.Failed
           ("Incorrect result from function Translate w/map ptr - 1");
      end if;

      if B10.Translate(B10.To_Bounded_Wide_String("cadogtac"),
                       Map_Ptr) /= 
         B10.To_Bounded_Wide_String("cacattac") 
      then
         Report.Failed
           ("Incorrect result from function Translate w/map ptr - 2");
      end if;

      -- Total mapping of source.

      if B10.Translate(Source  => B10.To_Bounded_Wide_String("dogodggdo"),
                       Mapping => Map_Ptr) /= 
         B10.To_Bounded_Wide_String("catacttca") 
      then
         Report.Failed
           ("Incorrect result from function Translate w/map ptr- 3");
      end if;

      -- No mapping of source.

      if B10.Translate(Source  => B10.To_Bounded_Wide_String(" DOG cat "),
                       Mapping => Map_Ptr) /= 
         B10.To_Bounded_Wide_String(" DOG cat ") 
      then
         Report.Failed
           ("Incorrect result from function Translate w/map ptr - 4");
      end if;

      if B10.Translate(B10.To_Bounded_Wide_String("d "), Map_Ptr)         /=
         B10.To_Bounded_Wide_String("c ")                                   or
         B10.Translate(B10.To_Bounded_Wide_String("  god"), Map_Ptr)      /=
         B10.To_Bounded_Wide_String("  tac")                                or
         B10.Translate(B10.To_Bounded_Wide_String("d o g D og"), Map_Ptr) /=
         B10.To_Bounded_Wide_String("c a t D at")                           or
         B10.Translate(B10.To_Bounded_Wide_String("   "), Map_Ptr)        /=
         B10.To_Bounded_Wide_String("   ")                                  or
         B10.Translate(B10.To_Bounded_Wide_String("dddddddddd"), Map_Ptr) /=
         B10.To_Bounded_Wide_String("cccccccccc") 
      then
         Report.Failed
           ("Incorrect result from function Translate w/map ptr - 5");
      end if;

      if B10.Translate(Source  => B10.Null_Bounded_Wide_String,
                       Mapping => Map_Ptr) /= 
         B10.To_Bounded_Wide_String("") 
      then
         Report.Failed
           ("Incorrect result from function Translate w/map ptr - 6");
      end if;


      -- Function Replace_Slice    
      -- Evaluate function Replace_Slice with 
      -- a variety of Truncation options.

      -- Drop = Error (Default)

      begin
         Test_String   := AtoJ_Bnd_Str;
         Result_String := 
           B10.Replace_Slice(Source => Test_String, 
                             Low    => 3,
                             High   => 5,                   -- 3-5, 3 chars.
                             By     => Equiv("xxxxxx"));    -- more than 3.
         Report.Failed("Length_Error not raised by Function Replace_Slice");
      exception
         when AS.Length_Error => null;   -- Correct exception raised.
         when others          =>
            Report.Failed
              ("Incorrect exception raised by Function Replace_Slice");
      end;

      -- Drop = Left                                                          

      Result_String := 
        B10.Replace_Slice(Source => Test_String, 
                          Low    =>  7,
                          High   => 10,                  -- 7-10, 4 chars.
                          By     => Equiv("xxxxxx"),     --  6 chars.
                          Drop   => Ada.Strings.Left);

      if Result_String /= 
         B10.To_Bounded_Wide_String(Equiv("cdefxxxxxx")) -- drop a,b
      then
         Report.Failed
           ("Incorrect result from Function Replace Slice, Drop = Left");
      end if;

      -- Drop = Right

      Result_String := 
        B10.Replace_Slice(Source => Test_String,
                          Low    =>  2,
                          High   =>  5,                 -- 2-5, 4 chars.
                          By     => Equiv("xxxxxx"),    --  6 chars.
                          Drop   => Ada.Strings.Right);

      if Result_String /= 
         B10.To_Bounded_Wide_String(Equiv("axxxxxxfgh")) -- drop i,j
      then
         Report.Failed
           ("Incorrect result from Function Replace Slice, Drop = Right");
      end if;

      -- Low = High = Source'Last, "By" length = 1.

      if B10.Replace_Slice(AtoE_Bnd_Str,
                           B10.To_Wide_String(AtoE_Bnd_Str)'Last,
                           B10.To_Wide_String(AtoE_Bnd_Str)'Last,
                           Equiv("X"),
                           Ada.Strings.Error)  /=
         B10.To_Bounded_Wide_String(Equiv("abcdX"))
      then
         Report.Failed("Incorrect result from Function Replace_Slice");
      end if;

      -- Index_Error raised when High < Source'First - 1.
      begin
         Test_String := 
           B10.Replace_Slice(AtoE_Bnd_Str, 
                             B10.To_Wide_String(AtoE_Bnd_Str)'First,
                             B10.To_Wide_String(AtoE_Bnd_Str)'First - 2,
                             Equiv("hijklm"));
         Report.Failed("Index_Error not raised by Function Replace_Slice");
      exception
         when AS.Index_Error   => null;  -- OK, expected exception
         when Constraint_Error => null;  -- Also OK, since RM is not clear
         when others           =>
            Report.Failed
              ("Incorrect exception raised by Function Replace_Slice");
      end;


      -- Procedure Replace_Slice  
      -- Evaluate procedure Replace_Slice with 
      -- a variety of Truncation options.

      -- Drop = Error (Default)

      begin
         Test_String := AtoJ_Bnd_Str;
         B10.Replace_Slice(Source => Test_String, 
                           Low    => 3,
                           High   => 5,                   -- 3-5, 3 chars.
                           By     => Equiv("xxxxxx"));    -- more than 3.
         Report.Failed("Length_Error not raised by Procedure Replace_Slice");
      exception
         when AS.Length_Error => null;   -- Correct exception raised.
         when others          =>
            Report.Failed
              ("Incorrect exception raised by Procedure Replace_Slice");
      end;

      -- Drop = Left                                                          

      Test_String := AtoJ_Bnd_Str;
      B10.Replace_Slice(Source => Test_String, 
                        Low    =>  7,
                        High   =>  9,                  -- 7-9, 3 chars.
                        By     => Equiv("xxxxx"),      --  5 chars.
                        Drop   => Ada.Strings.Left);

      if Test_String /= 
         B10.To_Bounded_Wide_String(Equiv("cdefxxxxxj")) -- drop a,b
      then
         Report.Failed
           ("Incorrect result from Procedure Replace Slice, Drop = Left");
      end if;

      -- Drop = Right

      Test_String := AtoJ_Bnd_Str;
      B10.Replace_Slice(Source => Test_String, 
                        Low    =>  1,
                        High   =>  3,                  -- 1-3, 3chars.
                        By     => Equiv("xxxx"),       --  4 chars.
                        Drop   => Ada.Strings.Right);

      if Test_String /= 
         B10.To_Bounded_Wide_String(Equiv("xxxxdefghi"))  -- drop j
      then
         Report.Failed
           ("Incorrect result from Procedure Replace Slice, Drop = Right");
      end if;

      -- High = Source'First, Low > High (Insert before Low).

      Test_String := AtoE_Bnd_Str;
      B10.Replace_Slice(Source => Test_String, 
                        Low    => B10.To_Wide_String(Test_String)'Last,
                        High   => B10.To_Wide_String(Test_String)'First,
                        By     => Equiv("XXXX"),       --  4 chars.
                        Drop   => Ada.Strings.Right);

      if Test_String /= B10.To_Bounded_Wide_String(Equiv("abcdXXXXe")) then 
         Report.Failed
           ("Incorrect result from Procedure Replace Slice");
      end if;


      -- Function Insert with Truncation 
      -- Drop = Error (Default).

      begin
         Result_String := 
           B10.Insert(Source   => AtoJ_Bnd_Str,    -- "abcdefghij"
                      Before   => 2,
                      New_Item => Equiv("xyz"));
         Report.Failed("Length_Error not raised by Function Insert");
      exception
         when AS.Length_Error => null;  -- Correct exception raised.
         when others          => 
            Report.Failed("Incorrect exception raised by Function Insert");
      end;

      -- Drop = Left

      Result_String :=
        B10.Insert(Source   => AtoJ_Bnd_Str,      -- "abcdefghij"
                   Before   => 5,
                   New_Item => Equiv("xyz"),      -- 3 additional chars.
                   Drop     => Ada.Strings.Left);

      if B10.To_Wide_String(Result_String) /= Equiv("dxyzefghij") then 
         Report.Failed("Incorrect result from Function Insert, Drop = Left");
      end if;

      -- Drop = Right

      Result_String := 
        B10.Insert(Source   => B10.To_Bounded_Wide_String("abcdef"),
                   Before   => 2,
                   New_Item => "vwxyz",             -- 5 additional chars.
                   Drop     => Ada.Strings.Right);

      if B10.To_Wide_String(Result_String) /= "avwxyzbcde" then     -- drop f.
         Report.Failed("Incorrect result from Function Insert, Drop = Right");
      end if;

      -- Additional cases.

      if B10.Insert(B10.To_Bounded_Wide_String("a"), 1, " B")        /=   
         B10.To_Bounded_Wide_String(" Ba")                              or
         B10.Insert(B10.Null_Bounded_Wide_String, 1, Equiv("abcde")) /=
         AtoE_Bnd_Str                                                   or
         B10.Insert(B10.To_Bounded_Wide_String("ab"), 2, "")         /=
         B10.To_Bounded_Wide_String("ab")
      then
         Report.Failed("Incorrect result from Function Insert");
      end if;


      -- Procedure Insert 

      -- Drop = Error (Default).
      begin
         Test_String := AtoJ_Bnd_Str;
         B10.Insert(Source   => Test_String,   
                    Before   => 9,
                    New_Item => Equiv("wxyz"),
                    Drop     => Ada.Strings.Error);
         Report.Failed("Length_Error not raised by Procedure Insert");
      exception
         when AS.Length_Error => null;  -- Correct exception raised.
         when others          => 
            Report.Failed("Incorrect exception raised by Procedure Insert");
      end;

      -- Drop = Left
      
      Test_String := AtoJ_Bnd_Str;
      B10.Insert(Source   => Test_String,            
                 Before   => B10.Length(Test_String), -- before last char
                 New_Item => Equiv("xyz"),            -- 3 additional chars.
                 Drop     => Ada.Strings.Left);

      if B10.To_Wide_String(Test_String) /= Equiv("defghixyzj") then 
         Report.Failed("Incorrect result from Procedure Insert, Drop = Left");
      end if;

      -- Drop = Right

      Test_String := AtoJ_Bnd_Str;
      B10.Insert(Source   => Test_String,
                 Before   => 4,
                 New_Item => Equiv("yz"),             -- 2 additional chars.
                 Drop     => Ada.Strings.Right);

      if B10.To_Wide_String(Test_String) /= Equiv("abcyzdefgh") then   
         Report.Failed
           ("Incorrect result from Procedure Insert, Drop = Right");
      end if;

      -- Before = Source'First, New_Item length = 1.

      Test_String := B10.To_Bounded_Wide_String(" abc ");
      B10.Insert(Test_String, 
                 B10.To_Wide_String(Test_String)'First,
                 "Z");

      if Test_String /= B10.To_Bounded_Wide_String("Z abc ") then
         Report.Failed("Incorrect result from Procedure Insert");
      end if;


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

   Report.Result;

end CXA4019;