File : input_sources-strings.ads
-----------------------------------------------------------------------
-- XML/Ada - An XML suite for Ada95 --
-- --
-- Copyright (C) 2001 --
-- ACT-Europe --
-- Author: Emmanuel Briot --
-- --
-- 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.Strings is
type String_Input is new Input_Source with private;
type String_Input_Access is access all String_Input'Class;
-- A special implementation of a reader, that reads from a unicode
-- byte sequence.
procedure Open
(Str : Unicode.CES.Byte_Sequence_Access;
Encoding : Unicode.CES.Encoding_Scheme;
Input : out String_Input);
-- Creates a new reader that reads from a byte-sequence, encoded with a
-- specific encoding.
-- No copy of Str is kept, we simply keep the pointer.
procedure Close (Input : in out String_Input);
-- Free the memory occupied by Input
procedure Next_Char
(From : in out String_Input;
C : out Unicode.Unicode_Char);
-- Return the next character in the string.
function Eof (From : String_Input) return Boolean;
-- True if From is past the last character in the string.
private
type String_Input is new Input_Source with
record
Index : Natural;
Buffer : Unicode.CES.Byte_Sequence_Access;
Encoding : Unicode.CES.Encoding_Scheme;
end record;
end Input_Sources.Strings;