| -- CXA4010.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.Unbounded |
| -- are available, and that they produce correct results. Specifically, |
| -- check the subprograms To_String, To_Unbounded_String, Insert, "&", |
| -- "*", Length, Slice, Replace_Slice, Overwrite, Index, Index_Non_Blank, |
| -- Head, Tail, and "=", "<=", ">=". |
| -- |
| -- TEST DESCRIPTION: |
| -- This test demonstrates the uses of many of the subprograms defined |
| -- in package Ada.Strings.Unbounded for use with unbounded strings. |
| -- The test simulates how unbounded 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 uses a large number of the subprograms provided |
| -- by package Ada.Strings.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.Strings.Maps; |
| with Ada.Strings.Unbounded; |
| |
| procedure CXA4010 is |
| begin |
| |
| Report.Test ("CXA4010", "Check that the subprograms defined in " & |
| "package Ada.Strings.Unbounded are available, " & |
| "and that they produce correct results"); |
| |
| Test_Block: |
| declare |
| |
| package ASUnb renames Ada.Strings.Unbounded; |
| use type ASUnb.Unbounded_String; |
| use Ada.Strings; |
| |
| Pamphlet_Paragraph_Count : constant := 2; |
| Lines : constant := 4; |
| Line_Length : constant := 40; |
| |
| type Document_Type is array (Positive range <>) |
| of ASUnb.Unbounded_String; |
| |
| type Camera_Ready_Copy_Type is array (1..Lines) |
| of String (1..Line_Length); |
| |
| Pamphlet : Document_Type (1..Pamphlet_Paragraph_Count); |
| |
| Camera_Ready_Copy : Camera_Ready_Copy_Type := |
| (others => (others => Ada.Strings.Space)); |
| |
| TC_Finished_Product : Camera_Ready_Copy_Type := |
| ( 1 => "Ada is a programming language designed ", |
| 2 => "to support long-lived, reliable software", |
| 3 => " systems. ", |
| 4 => "Go with Ada! "); |
| |
| ----- |
| |
| |
| procedure Enter_Text_Into_Document (Document : in out Document_Type) is |
| begin |
| |
| -- Fill in both "paragraphs" of the document. Each unbounded string |
| -- functions as an individual paragraph, containing an unspecified |
| -- number of characters. |
| -- Use a variety of different unbounded string subprograms to load |
| -- the data. |
| |
| Document(1) := ASUnb.To_Unbounded_String("Ada is a language"); |
| |
| -- Insert the word "programming" prior to "language". |
| Document(1) := |
| ASUnb.Insert(Document(1), |
| ASUnb.Index(Document(1), |
| "language"), |
| ASUnb.To_String("progra" & -- Str & |
| ASUnb."*"(2,'m') & -- Unbd & |
| "ing ")); -- Str |
| |
| |
| -- Overwrite the word "language" with "language" + additional text. |
| Document(1) := |
| ASUnb.Overwrite(Document(1), |
| ASUnb.Index(Document(1), |
| ASUnb.To_String( |
| ASUnb.Tail(Document(1), 8, ' ')), |
| Ada.Strings.Backward), |
| "language designed to support long-lifed"); |
| |
| |
| -- Replace the word "lifed" with "lived". |
| Document(1) := |
| ASUnb.Replace_Slice(Document(1), |
| ASUnb.Index(Document(1), "lifed"), |
| ASUnb.Length(Document(1)), |
| "lived"); |
| |
| |
| -- Overwrite the word "lived" with "lived" + additional text. |
| Document(1) := |
| ASUnb.Overwrite(Document(1), |
| ASUnb.Index(Document(1), |
| ASUnb.To_String( |
| ASUnb.Tail(Document(1), 5, ' ')), |
| Ada.Strings.Backward), |
| "lived, reliable software systems."); |
| |
| |
| -- Use several of the overloaded versions of "&" to form this |
| -- unbounded string. |
| |
| Document(2) := 'G' & |
| ASUnb.To_Unbounded_String("o ") & |
| ASUnb.To_Unbounded_String("with") & |
| ' ' & |
| "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 strings into fixed lengths. |
| |
| -- Search the first unbounded string for portions of text that |
| -- are less than or equal to the length of a string in the |
| -- Camera_Ready_Copy_Type object. |
| |
| Camera_Copy(1) := -- Take characters 1-39, |
| ASUnb.Slice(Document(1), -- and append a blank space. |
| 1, |
| ASUnb.Index(ASUnb.To_Unbounded_String( |
| ASUnb.Slice(Document(1), |
| 1, |
| Line_Length)), |
| Ada.Strings.Maps.To_Set(' '), |
| Ada.Strings.Inside, |
| Ada.Strings.Backward)) & ' '; |
| |
| Camera_Copy(2) := -- Take characters 40-79. |
| ASUnb.Slice(Document(1), |
| 40, |
| (ASUnb.Index_Non_Blank -- Should return 79 |
| (ASUnb.To_Unbounded_String |
| (ASUnb.Slice(Document(1), -- Slice (40..79) |
| 40, |
| 79)), |
| Ada.Strings.Backward) + 39)); -- Increment since |
| -- this slice starts |
| -- at 40. |
| |
| Camera_Copy(3)(1..9) := ASUnb.Slice(Document(1), -- Characters 80-88 |
| 80, |
| ASUnb.Length(Document(1))); |
| |
| |
| -- Break the second unbounded string into the appropriate length. |
| -- It is only twelve characters in length, so the entire unbounded |
| -- string will be placed on one string of the output object. |
| |
| Camera_Copy(4)(1..ASUnb.Length(Document(2))) := |
| ASUnb.To_String(ASUnb.Head(Document(2), |
| ASUnb.Length(Document(2)))); |
| |
| end Create_Camera_Ready_Copy; |
| |
| |
| ----- |
| |
| |
| function Valid_Proofread (Draft, Master : Camera_Ready_Copy_Type) |
| return Boolean is |
| begin |
| |
| -- Evaluate strings for equality, using the operators defined in |
| -- package Ada.Strings.Unbounded. The less than/greater than or |
| -- equal comparisons should evaluate to "equals => True". |
| |
| if ASUnb.To_Unbounded_String(Draft(1)) = -- "="(Unb,Unb) |
| ASUnb.To_Unbounded_String(Master(1)) and |
| ASUnb.To_Unbounded_String(Draft(2)) <= -- "<="(Unb,Unb) |
| ASUnb.To_Unbounded_String(Master(2)) and |
| ASUnb.To_Unbounded_String(Draft(3)) >= -- ">="(Unb,Unb) |
| ASUnb.To_Unbounded_String(Master(3)) and |
| ASUnb.To_Unbounded_String(Draft(4)) = -- "="(Unb,Unb) |
| ASUnb.To_Unbounded_String(Master(4)) |
| then |
| return True; |
| else |
| return False; |
| end if; |
| |
| end Valid_Proofread; |
| |
| |
| ----- |
| |
| |
| begin |
| |
| -- Enter text into the unbounded string paragraphs of the document. |
| |
| Enter_Text_Into_Document (Pamphlet); |
| |
| |
| -- Reformat the unbounded strings into fixed 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 string processing result"); |
| end if; |
| |
| |
| exception |
| when others => Report.Failed ("Exception raised in Test_Block"); |
| end Test_Block; |
| |
| |
| Report.Result; |
| |
| end CXA4010; |
