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