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108 | -- Ada_GUI implementation based on Gnoga. Adapted 2021
-- --
-- GNOGA - The GNU Omnificent GUI for Ada --
-- --
-- G N O G A . S E R V E R . D A T A B A S E --
-- --
-- B o d y --
-- --
-- --
-- Copyright (C) 2014 David Botton --
-- --
-- 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 --
-- MERCHANTABILITY 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/>. --
-- --
-- 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. --
-- --
-- For more information please go to http://www.gnoga.com --
------------------------------------------------------------------------------
with Ada.Strings.Fixed;
package body Ada_GUI.Gnoga.Server.Database is
----------------
-- Field_Type --
----------------
function Field_Type (Field : Field_Description) return String is
Data : constant String :=
Ada.Strings.Unbounded.To_String (Field.Data_Type);
Right : constant Natural := Ada.Strings.Fixed.Index (Data, "(");
begin
if Right = 0 then
return Data;
else
return Data (Data'First .. Right - 1);
end if;
end Field_Type;
function Field_Size (Field : Field_Description) return Natural is
Option : constant String := Field_Options (Field);
begin
if Option = "" then
return 0;
else
declare
Comma : constant Natural := Ada.Strings.Fixed.Index (Option, ",");
begin
if Comma = 0 then
return Natural'Value (Option);
else
return Natural'Value (Option (Option'First .. Comma - 1));
end if;
end;
end if;
end Field_Size;
--------------------
-- Field_Decimals --
--------------------
function Field_Decimals (Field : Field_Description) return Natural is
Option : constant String := Field_Options (Field);
Comma : constant Natural := Ada.Strings.Fixed.Index (Option, ",");
begin
if Comma = 0 then
return 0;
else
return Natural'Value (Option (Comma + 1 .. Option'Last));
end if;
end Field_Decimals;
-------------------
-- Field_Options --
-------------------
function Field_Options (Field : Field_Description) return String is
Data : constant String :=
Ada.Strings.Unbounded.To_String (Field.Data_Type);
Right : constant Natural := Ada.Strings.Fixed.Index (Data, "(");
Left : constant Natural := Ada.Strings.Fixed.Index (Data, ")");
begin
if Right = 0 or Left = 0 then
return "";
else
return Data (Right + 1 .. Left - 1);
end if;
end Field_Options;
end Ada_GUI.Gnoga.Server.Database;
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