with Ada.IO_Exceptions;
with Ada.Streams;
+
+with Interfaces.C_Streams;
+
with System;
with System.File_Control_Block;
with System.WCh_Con;
PM : constant := Character'Pos (ASCII.FF);
-- Used as page mark, except at end of file where it is implied
- -------------------------------------
+ ------------------------------------------
-- Wide_Wide_Text_IO File Control Block --
- -------------------------------------
+ ------------------------------------------
Default_WCEM : WCh_Con.WC_Encoding_Method := WCh_Con.WCEM_UTF8;
- -- This gets modified during initialization (see body) using
- -- the default value established in the call to Set_Globals.
+ -- This gets modified during initialization (see body) using the default
+ -- value established in the call to Set_Globals.
package FCB renames System.File_Control_Block;
-- The Standard Files --
------------------------
- Null_Str : aliased constant String := "";
- -- Used as name and form of standard files
-
Standard_Err_AFCB : aliased Wide_Wide_Text_AFCB;
Standard_In_AFCB : aliased Wide_Wide_Text_AFCB;
Standard_Out_AFCB : aliased Wide_Wide_Text_AFCB;
Current_Err : aliased File_Type := Standard_Err;
-- Current files
+ procedure Initialize_Standard_Files;
+ -- Initializes the file control blocks for the standard files. Called from
+ -- the elaboration routine for this package, and from Reset_Standard_Files
+ -- in package Ada.Wide_Wide_Text_IO.Reset_Standard_Files.
+
-----------------------
-- Local Subprograms --
-----------------------
-- These subprograms are in the private part of the spec so that they can
- -- be shared by the routines in the body of Ada.Text_IO.Wide_Wide_Text_IO.
-
- -- Note: we use Integer in these declarations instead of the more accurate
- -- Interfaces.C_Streams.int, because we do not want to drag in the spec of
- -- this interfaces package with the spec of Ada.Text_IO, and we know that
- -- in fact these types are identical
+ -- be shared by the children of Ada.Text_IO.Wide_Wide_Text_IO.
- function Getc (File : File_Type) return Integer;
- -- Gets next character from file, which has already been checked for
- -- being in read status, and returns the character read if no error
- -- occurs. The result is EOF if the end of file was read.
+ function Getc (File : File_Type) return Interfaces.C_Streams.int;
+ -- Gets next character from file, which has already been checked for being
+ -- in read status, and returns the character read if no error occurs. The
+ -- result is EOF if the end of file was read.
- procedure Get_Character
- (File : File_Type;
- Item : out Character);
- -- This is essentially a copy of the normal Get routine from Text_IO. It
+ procedure Get_Character (File : File_Type; Item : out Character);
+ -- This is essentially copy of Wide_Wide_Text_IO.Get. It obtains a single
-- obtains a single character from the input file File, and places it in
- -- Item. This character may be the leading character of a
- -- Wide_Wide_Character sequence, but that is up to the caller to deal
- -- with.
+ -- Item. This result may be the leading character of a Wide_Wide_Character
+ -- sequence, but that is up to the caller to deal with.
function Get_Wide_Wide_Char
(C : Character;
-- read and is passed in C. The wide character value is returned as the
-- result, and the file pointer is bumped past the character.
- function Nextc (File : File_Type) return Integer;
- -- Returns next character from file without skipping past it (i.e. it
- -- is a combination of Getc followed by an Ungetc).
-
- procedure Putc (ch : Integer; File : File_Type);
- -- Outputs the given character to the file, which has already been
- -- checked for being in output status. Device_Error is raised if the
- -- character cannot be written.
-
- procedure Terminate_Line (File : File_Type);
- -- If the file is in Write_File or Append_File mode, and the current
- -- line is not terminated, then a line terminator is written using
- -- New_Line. Note that there is no Terminate_Page routine, because
- -- the page mark at the end of the file is implied if necessary.
-
- procedure Ungetc (ch : Integer; File : File_Type);
- -- Pushes back character into stream, using ungetc. The caller has
- -- checked that the file is in read status. Device_Error is raised
- -- if the character cannot be pushed back. An attempt to push back
- -- and end of file character (EOF) is ignored.
+ function Nextc (File : File_Type) return Interfaces.C_Streams.int;
+ -- Returns next character from file without skipping past it (i.e. it is a
+ -- combination of Getc followed by an Ungetc).
end Ada.Wide_Wide_Text_IO;
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