src/morzhol-os.ads

   1 ------------------------------------------------------------------------------
   2 --                                Morzhol                                   --
   3 --                                                                          --
   4 --                           Copyright (C) 2007                             --
   5 --                      Pascal Obry - Olivier Ramonat                       --
   6 --                                                                          --
   7 --  This library is free software; you can redistribute it and/or modify    --
   8 --  it under the terms of the GNU General Public License as published by    --
   9 --  the Free Software Foundation; either version 2 of the License, or (at   --
  10 --  your option) any later version.                                         --
  11 --                                                                          --
  12 --  This library is distributed in the hope that it will be useful, but     --
  13 --  WITHOUT ANY WARRANTY; without even the implied warranty of              --
  14 --  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU       --
  15 --  General Public License for more details.                                --
  16 --                                                                          --
  17 --  You should have received a copy of the GNU General Public License       --
  18 --  along with this library; if not, write to the Free Software Foundation, --
  19 --  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.       --
  20 ------------------------------------------------------------------------------
  21
  22 with Ada.Environment_Variables;
  23
  24 package Morzhol.OS is
  25
  26    use Ada;
  27
  28    Is_Windows          : constant Boolean :=
  29                            Environment_Variables.Exists ("OS") and then
  30                            Environment_Variables.Value ("OS") = "Windows_NT";
  31
  32    Directory_Separator : constant Character;
  33
  34    function Compose (Containing_Directory, Path : in String) return String;
  35    --  Returns Containing_Directory & Directory_Separator & Path if PATH is
  36    --  relative, otherwise it returns Path.
  37
  38 private
  39
  40    subtype Windows_Host is Boolean;
  41
  42    type DS_Array is array (Windows_Host) of Character;
  43
  44    DS : DS_Array := DS_Array'(True => '\', False => '/');
  45
  46    Directory_Separator : constant Character := DS (Is_Windows);
  47
  48 end Morzhol.OS;