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xmpp-utils.adb
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------------------------------------------------------------------------------
-- --
-- AXMPP Project --
-- --
-- XMPP Library for Ada --
-- --
------------------------------------------------------------------------------
-- --
-- Copyright © 2011, Alexander Basov <[email protected]> --
-- 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 Alexander Basov, 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. --
-- --
------------------------------------------------------------------------------
-- $Revision$ $Date$
------------------------------------------------------------------------------
with Ada.Unchecked_Conversion;
package body XMPP.Utils is
use League.Strings;
Int_Id : Integer := 0;
--------------
-- Gen_Id --
--------------
function Gen_Id (Prefix : League.Strings.Universal_String
:= League.Strings.Empty_Universal_String)
return League.Strings.Universal_String is
function Image (J : Integer) return Wide_Wide_String;
-------------
-- Image --
-------------
function Image (J : Integer) return Wide_Wide_String is
S : constant Wide_Wide_String
:= Integer'Wide_Wide_Image (J);
begin
return S (S'First + 1 .. S'Last);
end Image;
Tmp : League.Strings.Universal_String := Prefix;
begin
Int_Id := Int_Id + 1;
if Int_Id > 1000 then
Int_Id := 0;
end if;
if Tmp.Is_Empty then
Tmp := Tmp & "aa";
end if;
return Tmp & Image (Int_Id);
end Gen_Id;
-------------------------------
-- To_Stream_Element_Array --
-------------------------------
function To_Stream_Element_Array (Value : String)
return Ada.Streams.Stream_Element_Array
is
subtype Source is String (Value'Range);
subtype Result is Ada.Streams.Stream_Element_Array
(Ada.Streams.Stream_Element_Offset (Value'First)
.. Ada.Streams.Stream_Element_Offset (Value'Last));
function To_Array is
new Ada.Unchecked_Conversion (Source, Result);
begin
return To_Array (Value);
end To_Stream_Element_Array;
end XMPP.Utils;