| -- CXA4021.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_Unbounded are available, and that they produce |
| -- correct results. Specifically, check the subprograms Head, Index, |
| -- Index_Non_Blank, Insert, Length, Overwrite, Replace_Slice, Slice, |
| -- Tail, To_Wide_String, To_Unbounded_Wide_String, "*", "&", |
| -- and "=", "<=", ">=". |
| -- |
| -- TEST DESCRIPTION: |
| -- This test demonstrates the uses of many of the subprograms defined |
| -- in package Ada.Strings.Wide_Unbounded for use with unbounded wide |
| -- strings. |
| -- The test attempts to simulate how unbounded wide strings could be used |
| -- to simulate paragraphs of text. Modifications could be easily be |
| -- performed using the provided subprograms (although in this test, the |
| -- main modification performed was the addition of more text to the |
| -- string). One would not have to worry about the formatting of the |
| -- paragraph until it was finished and correct in content. Then, once |
| -- all required editing is complete, the unbounded strings can be divided |
| -- up into the appropriate lengths based on particular formatting |
| -- requirements. The test then compares the formatted text product |
| -- with a predefined "finished product". |
| -- |
| -- This test attempts to use a large number of the subprograms provided |
| -- by package Ada.Strings.Wide_Unbounded. Often, the processing involved |
| -- could have been performed more efficiently using a minimum number |
| -- of the subprograms, in conjunction with loops, etc. However, for |
| -- testing purposes, and in the interest of minimizing the number of |
| -- tests developed, subprogram variety and feature mixing was stressed. |
| -- |
| -- |
| -- CHANGE HISTORY: |
| -- 06 Dec 94 SAIC ACVC 2.0 |
| -- |
| --! |
| |
| with Report; |
| with Ada.Characters.Handling; |
| with Ada.Strings.Wide_Maps; |
| with Ada.Strings.Wide_Unbounded; |
| |
| procedure CXA4021 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 character and string parameters to simulate the use of non- |
| -- character Wide_Characters and Wide_Strings 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 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 ("CXA4021", "Check that the subprograms defined in " & |
| "package Ada.Strings.Wide_Unbounded are " & |
| "available, and that they produce correct " & |
| "results"); |
| |
| Test_Block: |
| declare |
| |
| package ASW renames Ada.Strings.Wide_Unbounded; |
| use type ASW.Unbounded_Wide_String; |
| use Ada.Strings; |
| |
| Pamphlet_Paragraph_Count : constant := 2; |
| Lines : constant := 4; |
| Line_Length : constant := 40; |
| |
| type Document_Type is array (Positive range <>) |
| of ASW.Unbounded_Wide_String; |
| |
| type Camera_Ready_Copy_Type is array (1..Lines) |
| of Wide_String (1..Line_Length); |
| |
| Pamphlet : Document_Type (1..Pamphlet_Paragraph_Count); |
| |
| Camera_Ready_Copy : Camera_Ready_Copy_Type := |
| (others => (others => Ada.Strings.Wide_Space)); |
| |
| TC_Finished_Product : Camera_Ready_Copy_Type := |
| ( 1 => Equiv("Ada is a programming language designed "), |
| 2 => Equiv("to support long-lived, reliable software"), |
| 3 => Equiv(" systems. "), |
| 4 => Equiv("Go with Ada! ")); |
| |
| ----- |
| |
| |
| procedure Enter_Text_Into_Document (Document : in out Document_Type) is |
| begin |
| |
| -- Fill in both "paragraphs" of the document. Each unbounded wide |
| -- string functions as an individual paragraph, containing an |
| -- unspecified number of characters. |
| -- Use a variety of different unbounded wide string subprograms to |
| -- load the data. |
| |
| Document(1) := |
| ASW.To_Unbounded_Wide_String(Equiv("Ada is a language")); |
| |
| -- Insert the word "programming" prior to "language". |
| Document(1) := |
| ASW.Insert(Document(1), |
| ASW.Index(Document(1), |
| Equiv("language")), |
| ASW.To_Wide_String(Equiv("progra") & -- Wd Str & |
| ASW."*"(2,Equiv('m')) & -- Wd Unbd & |
| Equiv("ing "))); -- Wd Str |
| |
| |
| -- Overwrite the word "language" with "language" + additional text. |
| Document(1) := |
| ASW.Overwrite(Document(1), |
| ASW.Index(Document(1), |
| ASW.To_Wide_String( |
| ASW.Tail(Document(1), 8, Equiv(' '))), |
| Ada.Strings.Backward), |
| Equiv("language designed to support long-lifed")); |
| |
| |
| -- Replace the word "lifed" with "lived". |
| Document(1) := |
| ASW.Replace_Slice(Document(1), |
| ASW.Index(Document(1), Equiv("lifed")), |
| ASW.Length(Document(1)), |
| Equiv("lived")); |
| |
| |
| -- Overwrite the word "lived" with "lived" + additional text. |
| Document(1) := |
| ASW.Overwrite(Document(1), |
| ASW.Index(Document(1), |
| ASW.To_Wide_String |
| (ASW.Tail(Document(1), 5, Equiv(' '))), |
| Ada.Strings.Backward), |
| Equiv("lived, reliable software systems.")); |
| |
| |
| -- Use several of the overloaded versions of "&" to form this |
| -- unbounded wide string. |
| |
| Document(2) := Equiv('G') & |
| ASW.To_Unbounded_Wide_String(Equiv("o ")) & |
| ASW.To_Unbounded_Wide_String(Equiv("with")) & |
| Equiv(' ') & |
| Equiv("Ada!"); |
| |
| end Enter_Text_Into_Document; |
| |
| |
| ----- |
| |
| |
| procedure Create_Camera_Ready_Copy |
| (Document : in Document_Type; |
| Camera_Copy : out Camera_Ready_Copy_Type) is |
| begin |
| -- Break the unbounded wide strings into fixed lengths. |
| |
| -- Search the first unbounded wide string for portions of text that |
| -- are less than or equal to the length of a wide string in the |
| -- Camera_Ready_Copy_Type object. |
| |
| Camera_Copy(1) := -- Take characters 1-39, |
| ASW.Slice(Document(1), -- and append a blank space. |
| 1, |
| ASW.Index(ASW.To_Unbounded_Wide_String |
| (ASW.Slice(Document(1), |
| 1, |
| Line_Length)), |
| Ada.Strings.Wide_Maps.To_Set(Equiv(' ')), |
| Ada.Strings.Inside, |
| Ada.Strings.Backward)) & Equiv(' '); |
| |
| Camera_Copy(2) := -- Take characters 40-79. |
| ASW.Slice(Document(1), |
| 40, |
| (ASW.Index_Non_Blank -- Should return 79 |
| (ASW.To_Unbounded_Wide_String |
| (ASW.Slice(Document(1), -- Slice (40..79) |
| 40, |
| 79)), |
| Ada.Strings.Backward) + 39)); -- Increment since |
| -- this slice starts |
| -- at 40. |
| |
| Camera_Copy(3)(1..9) := ASW.Slice(Document(1), -- Characters 80-88 |
| 80, |
| ASW.Length(Document(1))); |
| |
| |
| -- Break the second unbounded wide string into the appropriate |
| -- length. It is only twelve characters in length, so the entire |
| -- unbounded wide string will be placed on one string of the output |
| -- object. |
| |
| Camera_Copy(4)(1..ASW.Length(Document(2))) := |
| ASW.To_Wide_String(ASW.Head(Document(2), |
| ASW.Length(Document(2)))); |
| |
| end Create_Camera_Ready_Copy; |
| |
| |
| ----- |
| |
| |
| function Valid_Proofread (Draft, Master : Camera_Ready_Copy_Type) |
| return Boolean is |
| begin |
| |
| -- Evaluate wide strings for equality, using the operators defined |
| -- in package Ada.Strings.Wide_Unbounded. The less than/greater |
| -- than or equal comparisons should evaluate to "equals => True". |
| |
| if ASW.To_Unbounded_Wide_String(Draft(1)) = -- "="(WUnb,WUnb) |
| ASW.To_Unbounded_Wide_String(Master(1)) and |
| ASW.To_Unbounded_Wide_String(Draft(2)) <= -- "<="(WUnb,WUnb) |
| ASW.To_Unbounded_Wide_String(Master(2)) and |
| ASW.To_Unbounded_Wide_String(Draft(3)) >= -- ">="(WUnb,WUnb) |
| ASW.To_Unbounded_Wide_String(Master(3)) and |
| ASW.To_Unbounded_Wide_String(Draft(4)) = -- "="(WUnb,WUnb) |
| ASW.To_Unbounded_Wide_String(Master(4)) |
| then |
| return True; |
| else |
| return False; |
| end if; |
| |
| end Valid_Proofread; |
| |
| |
| ----- |
| |
| |
| begin |
| |
| -- Enter text into the unbounded wide string paragraphs of the document. |
| |
| Enter_Text_Into_Document (Pamphlet); |
| |
| |
| -- Reformat the unbounded wide strings into fixed wide string format. |
| |
| Create_Camera_Ready_Copy (Document => Pamphlet, |
| Camera_Copy => Camera_Ready_Copy); |
| |
| |
| -- Verify the conversion process. |
| |
| if not Valid_Proofread (Draft => Camera_Ready_Copy, |
| Master => TC_Finished_Product) |
| then |
| Report.Failed ("Incorrect unbounded wide string processing result"); |
| end if; |
| |
| |
| exception |
| when others => Report.Failed ("Exception raised in Test_Block"); |
| end Test_Block; |
| |
| |
| Report.Result; |
| |
| end CXA4021; |
