gcc/ada/mdll-fil.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                            M D L L . F I L E S                           --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --                                                                          --
  10 --          Copyright (C) 1992-2001 Free Software Foundation, Inc.          --
  11 --                                                                          --
  12 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  13 -- terms of the  GNU General Public License as published  by the Free Soft- --
  14 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  15 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  16 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  17 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  18 -- for  more details.  You should have  received  a copy of the GNU General --
  19 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  20 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  21 -- MA 02111-1307, USA.                                                      --
  22 --                                                                          --
  23 -- GNAT was originally developed  by the GNAT team at  New York University. --
  24 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
  25 --                                                                          --
  26 ------------------------------------------------------------------------------
  27
  28 --  Simple services used by GNATDLL to deal with Filename extension.
  29
  30 with Ada.Strings.Fixed;
  31
  32 package body MDLL.Fil is
  33
  34    use Ada;
  35
  36    -------------
  37    -- Get_Ext --
  38    -------------
  39
  40    function Get_Ext (Filename : String) return String is
  41       use Strings.Fixed;
  42       I : constant Natural := Index (Filename, ".", Strings.Backward);
  43    begin
  44       if I = 0 then
  45          return "";
  46       else
  47          return Filename (I .. Filename'Last);
  48       end if;
  49    end Get_Ext;
  50
  51    ------------
  52    -- Is_Ali --
  53    ------------
  54
  55    function Is_Ali (Filename : String) return Boolean is
  56    begin
  57       return Get_Ext (Filename) = ".ali";
  58    end Is_Ali;
  59
  60    ------------
  61    -- Is_Obj --
  62    ------------
  63
  64    function Is_Obj (Filename : String) return Boolean is
  65       Ext : constant String := Get_Ext (Filename);
  66    begin
  67       return Ext = ".o" or else Ext = ".obj";
  68    end Is_Obj;
  69
  70    ------------
  71    -- Ext_To --
  72    ------------
  73
  74    function Ext_To
  75      (Filename : String;
  76       New_Ext  : String := No_Ext)
  77       return     String
  78    is
  79       use Strings.Fixed;
  80       I : constant Natural := Index (Filename, ".", Strings.Backward);
  81    begin
  82       if I = 0 then
  83          return Filename;
  84       else
  85          if New_Ext = "" then
  86             return Head (Filename, I - 1);
  87          else
  88             return Head (Filename, I - 1) & '.' & New_Ext;
  89          end if;
  90       end if;
  91    end Ext_To;
  92
  93 end MDLL.Fil;