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------------------------------------------------------------------------------
-- XML/Ada - An XML suite for Ada95 --
-- --
-- Copyright (C) 2001-2017, AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify it --
-- under terms of the GNU General Public License as published by the Free --
-- Software Foundation; either version 3, 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 MERCHAN- --
-- TABILITY or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception, --
-- version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
------------------------------------------------------------------------------
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.Cst_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 Open
(Str : Unicode.CES.Byte_Sequence;
Encoding : Unicode.CES.Encoding_Scheme;
Input : out String_Input);
-- Same as above, but a copy of the byte sequence is kept internally
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.Cst_Byte_Sequence_Access;
Buffer2 : Unicode.CES.Byte_Sequence_Access;
-- Only set if allocated in this package (second form of [Open])
Encoding : Unicode.CES.Encoding_Scheme;
end record;
end Input_Sources.Strings;
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