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-----------------------------------------------------------------------
-- XML/Ada - An XML suite for Ada95 --
-- --
-- Copyright (C) 2001-2002 --
-- ACT-Europe --
-- --
-- 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 Unicode;
with Unicode.CES;
package Input_Sources.File is
type File_Input is new Input_Source with private;
type File_Input_Access is access all File_Input'Class;
-- A special implementation of a reader, that reads from a file.
procedure Open (Filename : String; Input : out File_Input);
-- Open a new file for reading.
-- Note that the file is read completly at once, and saved in memory.
-- This provides a much better access later on, however this might be a
-- problem for very big files.
-- The physical file on disk can be modified at any time afterwards, since
-- it is no longer read.
-- This function can decode a file if it is coded in Utf8, Utf16 or Utf32
procedure Close (Input : in out File_Input);
-- Close the file and free the memory
procedure Next_Char
(From : in out File_Input;
C : out Unicode.Unicode_Char);
-- Return the next character in the file.
function Eof (From : File_Input) return Boolean;
-- True if From is past the last character in the file.
private
type File_Input is new Input_Source with
record
Index : Natural;
Buffer : Unicode.CES.Byte_Sequence_Access;
end record;
end Input_Sources.File;
|
