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-- --
-- package Copyright (c) Dmitry A. Kazakov --
-- Strings_Edit.Object_Identifiers Luebeck --
-- Summer, 2019 --
-- Interface --
-- Last revision : 18:40 01 Aug 2019 --
-- --
-- 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. --
--____________________________________________________________________--
--
-- The package provides text edit for object identifiers (OID) defined
-- by the International Telecommunications Union (ITU). OID is a
-- sequence of decimal natural integers separated by dots.
--
with Strings_Edit.Lexicographical_Order;
use Strings_Edit.Lexicographical_Order;
package Strings_Edit.Object_Identifiers is
--
-- Object Identifiers (OID)
--
type Subindentifier_Type is new Natural;
type Object_Identifier is
array (Positive range <>) of Subindentifier_Type;
--
-- < -- Ordering. OID are ordered by numbers of the components. I.e.
-- 1.231.4 precedes 2.1 because 1 precedes 2
--
function "<" (Left, Right : Object_Identifier) return Boolean;
function "<=" (Left, Right : Object_Identifier) return Boolean;
function ">" (Left, Right : Object_Identifier) return Boolean;
function ">=" (Left, Right : Object_Identifier) return Boolean;
--
-- Compare -- Compare identifiers
--
-- Left, Right - Object identifiers
--
-- Returns :
--
-- Comparison result
--
function Compare (Left, Right : Object_Identifier) return Precedence;
--
-- Get -- Object identifier in dotted notation for string
--
-- Source - The source string
-- Pointer - The location in the string to start with, advanced
-- Value - The object identifier
-- Last - The last subidentifier stored
--
-- Exceptions :
--
-- Constraint_Error - The object is too large
-- End_Error - No object identifier
-- Data_Error - Syntax error
-- Layout_Error - Pointer is outside Source'First..Source'Last +1
--
procedure Get
( Source : String;
Pointer : in out Integer;
Value : in out Object_Identifier;
Last : out Integer
);
--
-- Get -- Object identifier in dotted notation for string
--
-- Source - The source string
-- Pointer - The location in the string to start with, advanced
--
-- Returns :
--
-- The object identifier
--
-- Exceptions :
--
-- Constraint_Error - The object is too large
-- End_Error - No object identifier
-- Data_Error - Syntax error
-- Layout_Error - Pointer is outside Source'First..Source'Last +1
--
function Get
( Source : String;
Pointer : access Integer
) return Object_Identifier;
--
-- Image -- A dotted representation of identifier
--
-- Value - The identifier
--
-- Returns :
--
-- The result string, e.g. 1.23.10
--
function Image (Value : Object_Identifier) return String;
--
-- Put -- Object identifier into string
--
-- Destination - The string to put object identifier into
-- Pointer - The first element to write
-- Value - The value
-- Field - The output field
-- Justify - Alignment within the field
-- Fill - The fill character
--
-- The parameter Pointer is advanced beyond the value output. The object
-- is put in dotted notation
--
-- Exceptions :
--
-- Layout_Error - Pointer is outside bounds or no room for output
--
procedure Put
( Destination : in out String;
Pointer : in out Integer;
Value : Object_Identifier;
Field : Natural := 0;
Justify : Alignment := Left;
Fill : Character := ' '
);
--
-- Value -- Object identifier in dotted notation from string
--
-- Source - The source string
--
-- Exceptions :
--
-- End_Error - No object identifier
-- Data_Error - Syntax error or not all string parsed
--
function Value (Source : String) return Object_Identifier;
end Strings_Edit.Object_Identifiers;