redefined Object_String for simpler string handling and made other related changes

This commit is contained in:
2014-01-10 14:54:46 +00:00
parent bec5235659
commit 24829df3a6
7 changed files with 100 additions and 180 deletions

View File

@ -1,3 +1,4 @@
with H2.Scheme;
with H2.Pool;
with Storage;
@ -5,6 +6,7 @@ with Stream;
with Ada.Text_IO;
with Ada.Unchecked_Deallocation;
procedure scheme is
--package S renames H2.Scheme;
--package S is new H2.Scheme (Wide_Character, Wide_String);

View File

@ -1,9 +1,11 @@
with H2.Pool;
with Ada.Characters.Conversions;
with Ada.Unchecked_Conversion;
package body Stream is
------------------------------------------------------------------
use type S.Object_String_Size;
procedure Open (Stream: in out String_Input_Stream_Record) is
begin
@ -19,8 +21,8 @@ Ada.Wide_Text_IO.Put_Line ("****** CLOSE STRING STREAM ******");
procedure Read (Stream: in out String_Input_Stream_Record;
Data: out S.Object_String;
Last: out Standard.Natural) is
Avail: Standard.Natural;
Last: out S.Object_String_Size) is
Avail: S.Object_String_Size;
begin
Avail := Stream.Str'Last - Stream.Pos;
if Avail <= 0 then
@ -39,7 +41,7 @@ Ada.Wide_Text_IO.Put_Line ("****** CLOSE STRING STREAM ******");
procedure Write (Stream: in out String_Input_Stream_Record;
Data: out S.Object_String;
Last: out Standard.Natural) is
Last: out S.Object_String_Size) is
begin
--raise S.Stream_Error;
Last := Data'First - 1;
@ -48,20 +50,24 @@ Ada.Wide_Text_IO.Put_Line ("****** CLOSE STRING STREAM ******");
------------------------------------------------------------------
procedure Open (Stream: in out File_Stream_Record) is
subtype Wide_String is Standard.Wide_String(1 .. Standard.Natural(Stream.Name'Length));
function To_Wide_String is new Ada.Unchecked_Conversion (S.Object_String, Wide_String);
begin
Ada.Wide_Text_IO.Put_Line (">>>>> OPEN File STREAM <<<<<");
Ada.Wide_Text_IO.Open (Stream.Handle, Ada.Wide_Text_IO.In_File, Ada.Characters.Conversions.To_String(Stream.Name.all));
Ada.Wide_Text_IO.Put_Line (">>>>> OPEN File STREAM <<<<< " & To_Wide_String(Stream.Name.all));
Ada.Wide_Text_IO.Open (Stream.Handle, Ada.Wide_Text_IO.In_File, Ada.Characters.Conversions.To_String(To_Wide_String(Stream.Name.all)));
end Open;
procedure Close (Stream: in out File_Stream_Record) is
subtype Wide_String is Standard.Wide_String(1 .. Standard.Natural(Stream.Name'Length));
function To_Wide_String is new Ada.Unchecked_Conversion (S.Object_String, Wide_String);
begin
Ada.Wide_Text_IO.Put_Line (">>>>> CLOSE File STREAM <<<<<");
Ada.Wide_Text_IO.Put_Line (">>>>> CLOSE File STREAM <<<<< " & To_Wide_String(Stream.Name.all));
Ada.Wide_Text_IO.Close (Stream.Handle);
end Close;
procedure Read (Stream: in out File_Stream_Record;
Data: out S.Object_String;
Last: out Standard.Natural) is
Last: out S.Object_String_Size) is
begin
for I in Data'First .. Data'Last loop
begin
@ -78,7 +84,7 @@ Ada.Wide_Text_IO.Put_Line (">>>>> CLOSE File STREAM <<<<<");
procedure Write (Stream: in out File_Stream_Record;
Data: out S.Object_String;
Last: out Standard.Natural) is
Last: out S.Object_String_Size) is
begin
--raise S.Stream_Error;
Last := Data'First - 1;

View File

@ -3,49 +3,39 @@ with Ada.Wide_Text_IO;
package Stream is
--package S renames H2.Scheme;
package S is new H2.Scheme (Standard.Wide_Character, Standard.Wide_String);
package S is new H2.Scheme (Standard.Wide_Character);
------------------------------------------------------------
--type Object_String_Pointer is access all S.Object_String;
type Object_String_Pointer is access constant S.Object_String;
type String_Input_Stream_Record(Str: Object_String_Pointer) is new S.Stream_Record with record
Pos: Standard.Natural := 0;
Pos: S.Object_String_Size := 0;
end record;
--type String_Input_Stream_Record(Len: Standard.Natural) is new S.Stream_Record with record
-- Pos: Standard.Natural := 0;
-- Str: S.Object_String (1 .. Len) := (others => ' ');
--end record;
procedure Open (Stream: in out String_Input_Stream_Record);
procedure Close (Stream: in out String_Input_Stream_Record);
procedure Read (Stream: in out String_Input_Stream_Record;
Data: out S.Object_String;
Last: out Standard.Natural);
Last: out S.Object_String_Size);
procedure Write (Stream: in out String_Input_Stream_Record;
Data: out S.Object_String;
Last: out Standard.Natural);
Last: out S.Object_String_Size);
------------------------------------------------------------
--type File_Stream_Record(Name: Object_String_Pointer) is new S.Stream_Record with record
-- Handle: H2.Text_IO.File_Type;
--end record;
type File_Stream_Record is new S.Stream_Record with record
Name: S.Constant_Object_String_Pointer;
Handle: Ada.Wide_Text_IO.File_Type;
end record;
procedure Open (Stream: in out File_Stream_Record);
procedure Close (Stream: in out File_Stream_Record);
procedure Read (Stream: in out File_Stream_Record;
Data: out S.Object_String;
Last: out Standard.Natural);
Last: out S.Object_String_Size);
procedure Write (Stream: in out File_Stream_Record;
Data: out S.Object_String;
Last: out Standard.Natural);
Last: out S.Object_String_Size);
------------------------------------------------------------
procedure Allocate_Stream (Interp: in out S.Interpreter_Record;