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295 | -- --
-- procedure Test_String_Streams Copyright (c) Dmitry A. Kazakov --
-- Test Luebeck --
-- Spring, 2000 --
-- --
-- This library is free software; you can redistribute it and/or --
-- modify it under the terms of the GNU General Public License as --
-- published by the Free Software Foundation; either version 2 of --
-- the License, or (at your option) any later version. This library --
-- is distributed in the hope that it will be useful, but WITHOUT --
-- ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. You should have --
-- received a copy of the GNU General Public License along with --
-- this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
-- As a special exception, if other files instantiate generics from --
-- this unit, or you link this unit with other files to produce an --
-- executable, this unit does not by itself cause the resulting --
-- executable to be covered by the GNU General Public License. This --
-- exception does not however invalidate any other reasons why the --
-- executable file might be covered by the GNU Public License. --
--____________________________________________________________________--
with Ada.Exceptions; use Ada.Exceptions;
with Ada.Streams; use type Ada.Streams.Stream_Element_Offset;
with Ada.Text_IO; use Ada.Text_IO;
with Strings_Edit.Quoted; use Strings_Edit.Quoted;
with Strings_Edit.Streams; use Strings_Edit.Streams;
with Ada.Characters.Latin_1;
with Interfaces;
with Strings_Edit.Integers;
with Strings_Edit.Streams.Integers;
with Strings_Edit.Streams.Naturals;
with Strings_Edit.Streams.Unsigneds_32;
with Strings_Edit.UTF8.Handling;
with Strings_Edit.UTF8.Recoding_Streams;
procedure Test_String_Streams is
begin
------------------------------------------------------------------------
declare
use Ada.Streams;
use Interfaces;
use Strings_Edit.Streams.Unsigneds_32;
Value : Unsigned_32;
Buffer : Stream_Element_Array (1..80);
Pointer : Stream_Element_Offset;
Index : Stream_Element_Offset;
begin
for Number in Unsigned_32 range 0..100_000 loop
Pointer := 1;
Put (Buffer, Pointer, Number);
Index := 1;
Get (Buffer, Index, Value);
if Index /= Pointer then
Raise_Exception
( Constraint_Error'Identity,
( "Input buffer length"
& Stream_Element_Offset'Image (Index)
& " /="
& Stream_Element_Offset'Image (Pointer)
& " output"
) );
elsif Value /= Number then
Raise_Exception
( Constraint_Error'Identity,
( "Input"
& Unsigned_32'Image (Value)
& " /="
& Unsigned_32'Image (Number)
& " output"
) );
end if;
end loop;
end;
declare
use Ada.Streams;
use Interfaces;
use Strings_Edit.Streams.Unsigneds_32;
S : aliased String_Stream (30);
Value : Unsigned_32;
begin
for Number in Unsigned_32 range 0..100_000 loop
Rewind (S);
Output (S'Access, Number);
Set (S, Get (S));
Value := Input (S'Access);
if Value /= Number then
Raise_Exception
( Constraint_Error'Identity,
( "Stream input"
& Unsigned_32'Image (Value)
& " /="
& Unsigned_32'Image (Number)
& " output"
) );
end if;
end loop;
end;
------------------------------------------------------------------------
declare
use Ada.Streams;
use Interfaces;
use Strings_Edit.Streams.Integers;
Value : Integer;
Buffer : Stream_Element_Array (1..80);
Pointer : Stream_Element_Offset;
Index : Stream_Element_Offset;
begin
for Number in Integer range -50_000..50_000 loop
Pointer := 1;
Put (Buffer, Pointer, Number);
Index := 1;
Get (Buffer, Index, Value);
if Index /= Pointer then
Raise_Exception
( Constraint_Error'Identity,
( "Input buffer length"
& Stream_Element_Offset'Image (Index)
& " /="
& Stream_Element_Offset'Image (Pointer)
& " output"
) );
elsif Value /= Number then
Raise_Exception
( Constraint_Error'Identity,
( "Input"
& Integer'Image (Value)
& " /="
& Integer'Image (Number)
& " output"
) );
end if;
end loop;
end;
declare
use Ada.Streams;
use Strings_Edit.Streams.Integers;
S : aliased String_Stream (30);
Value : Integer;
begin
for Number in Integer range -50_000..50_000 loop
Rewind (S);
Output (S'Access, Number);
Set (S, Get (S));
Value := Input (S'Access);
if Value /= Number then
Raise_Exception
( Constraint_Error'Identity,
( "Stream input"
& Integer'Image (Value)
& " /="
& Integer'Image (Number)
& " output"
) );
end if;
end loop;
end;
------------------------------------------------------------------------
declare
use Ada.Streams;
use Strings_Edit.Streams.Naturals;
Value : Natural;
Buffer : Stream_Element_Array (1..80);
Pointer : Stream_Element_Offset;
Index : Stream_Element_Offset;
begin
for Number in Natural range 0..100_000 loop
Pointer := 1;
Put (Buffer, Pointer, Number);
Index := 1;
Get (Buffer, Index, Value);
if Index /= Pointer then
Raise_Exception
( Constraint_Error'Identity,
( "Input buffer length"
& Stream_Element_Offset'Image (Index)
& " /="
& Stream_Element_Offset'Image (Pointer)
& " output"
) );
elsif Value /= Number then
Raise_Exception
( Constraint_Error'Identity,
( "Input"
& Integer'Image (Value)
& " /="
& Integer'Image (Number)
& " output"
) );
end if;
end loop;
end;
declare
use Ada.Streams;
use Strings_Edit.Streams.Naturals;
S : aliased String_Stream (30);
Value : Natural;
begin
for Number in Natural range 0..100_000 loop
Rewind (S);
Output (S'Access, Number);
Set (S, Get (S));
Value := Input (S'Access);
if Value /= Number then
Raise_Exception
( Constraint_Error'Identity,
( "Stream input"
& Integer'Image (Value)
& " /="
& Integer'Image (Number)
& " output"
) );
end if;
end loop;
end;
------------------------------------------------------------------------
declare
S : aliased String_Stream (6);
C : Character;
begin
Character'Write (S'Access, 'a');
Rewind (S);
Character'Read (S'Access, C);
if C /= 'a' then
Raise_Exception (Constraint_Error'Identity, "Read error");
end if;
end;
declare
S : aliased String_Stream (6);
C : Character;
T : String (1..5);
begin
Set (S, "abcdef");
Character'Read (S'Access, C);
if C /= 'a' or else Get_Size (S) /= 5 then
Raise_Exception (Constraint_Error'Identity, "Read error");
end if;
String'Read (S'Access, T);
if T /= "bcdef" or else Get_Size (S) /= 0 then
Raise_Exception (Constraint_Error'Identity, "Read error");
end if;
Rewind (S); -- Rewind
Character'Write (S'Access, '1');
String'Write (S'Access, "23456");
if S.Data /= "123456" or else Get (S) /= "123456" then
Raise_Exception (Constraint_Error'Identity, "Write error");
end if;
end;
------------------------------------------------------------------------
declare
use Ada.Characters.Latin_1;
use Strings_Edit.UTF8.Handling;
use Strings_Edit.UTF8.Recoding_Streams;
Encoded : aliased String_Stream (1024);
Decoded : aliased Recoding_Stream
( Encoded'Access,
Windows_1252,
Character'Pos ('?'),
'?'
);
Text_1 : constant String := "L" & LC_U_Diaeresis & "beck";
Text_2 : String (1..7);
begin
String'Write (Decoded'Access, To_UTF8 (Text_1));
if Get (Encoded) /= Text_1 then
Raise_Exception
( Constraint_Error'Identity,
( "Recoding write error: "
& Quote (Get (Encoded))
& ", written "
& Quote (Text_1)
) );
end if;
Rewind (Encoded);
String'Read (Decoded'Access, Text_2);
if To_UTF8 (Text_1) /= Text_2 then
Raise_Exception
( Constraint_Error'Identity,
( "Recoding read error: "
& Quote (Text_1)
& ", read "
& Quote (Text_2)
) );
end if;
end;
Put_Line ("... Done");
exception
when Error : others =>
Put ("Error: ");
Put_Line (Exception_Information (Error));
end Test_String_Streams;
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