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139 | ------------------------------------------------------------------------------
-- --
-- Matreshka Project --
-- --
-- XML Processor --
-- --
-- Examples Component --
-- --
------------------------------------------------------------------------------
-- --
-- Copyright © 2011, Vadim Godunko <vgodunko@gmail.com> --
-- All rights reserved. --
-- --
-- Redistribution and use in source and binary forms, with or without --
-- modification, are permitted provided that the following conditions --
-- are met: --
-- --
-- * Redistributions of source code must retain the above copyright --
-- notice, this list of conditions and the following disclaimer. --
-- --
-- * Redistributions in binary form must reproduce the above copyright --
-- notice, this list of conditions and the following disclaimer in the --
-- documentation and/or other materials provided with the distribution. --
-- --
-- * Neither the name of the Vadim Godunko, IE nor the names of its --
-- contributors may be used to endorse or promote products derived from --
-- this software without specific prior written permission. --
-- --
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS --
-- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT --
-- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR --
-- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT --
-- HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, --
-- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED --
-- TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR --
-- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF --
-- LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING --
-- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS --
-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. --
-- --
------------------------------------------------------------------------------
-- $Revision: 1347 $ $Date: 2011-01-29 00:17:21 +0300 (Сб, 29 янв 2011) $
------------------------------------------------------------------------------
-- This is example of usage of XML Writer to generate XML files from
-- application. It generates initial part of XMPP stream.
------------------------------------------------------------------------------
with Ada.Wide_Wide_Text_IO;
with League.Strings;
with XML.SAX.Attributes;
with XML.SAX.Pretty_Writers;
procedure SAX_Writer is
use League.Strings;
function "+" (Item : Wide_Wide_String) return Universal_String
renames To_Universal_String;
XML_URI : constant Universal_String
:= +"http://www.w3.org/XML/1998/namespace";
Lang_Attribute : constant Universal_String := +"lang";
Stream_URI : constant Universal_String
:= +"http://etherx.jabber.org/streams";
Stream_Prefix : constant Universal_String := +"stream";
Stream_Element : constant Universal_String := +"stream";
Features_Element : constant Universal_String := +"features";
Client_URI : constant Universal_String := +"jabber:client";
Id_Attribute : constant Universal_String := +"id";
From_Attribute : constant Universal_String := +"from";
Version_Attribute : constant Universal_String := +"version";
Compression_URI : constant Universal_String
:= +"http://jabber.org/features/compress";
Compression_Element : constant Universal_String := +"compression";
Method_Element : constant Universal_String := +"method";
Writer : XML.SAX.Pretty_Writers.SAX_Pretty_Writer;
Attributes : XML.SAX.Attributes.SAX_Attributes;
begin
Writer.Start_Document;
Writer.Start_Prefix_Mapping (Namespace_URI => Client_URI);
Writer.Start_Prefix_Mapping
(Namespace_URI => Stream_URI, Prefix => Stream_Prefix);
-- Open stream element
Attributes.Set_Value
(Qualified_Name => Id_Attribute, Value => +"656571601");
Attributes.Set_Value
(Qualified_Name => From_Attribute, Value => +"jabber.ru");
Attributes.Set_Value (Qualified_Name => Version_Attribute, Value => +"1.0");
Attributes.Set_Value
(Namespace_URI => XML_URI, Local_Name => Lang_Attribute, Value => +"ru");
Writer.Start_Element
(Namespace_URI => Stream_URI,
Local_Name => Stream_Element,
Attributes => Attributes);
-- Open features element
Writer.Start_Element
(Namespace_URI => Stream_URI, Local_Name => Features_Element);
-- Open compression element
Writer.Start_Prefix_Mapping (Namespace_URI => Compression_URI);
Writer.Start_Element
(Namespace_URI => Compression_URI, Local_Name => Compression_Element);
-- Output method
Writer.Start_Element
(Namespace_URI => Compression_URI, Local_Name => Method_Element);
Writer.Characters (+"zlib");
Writer.End_Element
(Namespace_URI => Compression_URI, Local_Name => Method_Element);
-- Close compression element
Writer.End_Element
(Namespace_URI => Compression_URI, Local_Name => Compression_Element);
Writer.End_Prefix_Mapping;
-- Close features element
Writer.End_Element
(Namespace_URI => Stream_URI, Local_Name => Features_Element);
-- Close stream element
Writer.End_Element
(Namespace_URI => Stream_URI, Local_Name => Stream_Element);
Writer.End_Prefix_Mapping (Prefix => Stream_Prefix);
Writer.End_Prefix_Mapping;
Writer.End_Document;
Ada.Wide_Wide_Text_IO.Put_Line (Writer.Text.To_Wide_Wide_String);
end SAX_Writer;
|