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) 1992-2018, 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 3,  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 COPYING3.  If not, go to --
  19 -- http://www.gnu.org/licenses for a complete copy of the license.          --
  20 --                                                                          --
  21 -- GNAT was originally developed  by the GNAT team at  New York University. --
  22 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  23 --                                                                          --
  24 ------------------------------------------------------------------------------
  25
  26 --  Simple services used by GNATDLL to deal with Filename extension
  27
  28 with Ada.Strings.Fixed;
  29
  30 package body MDLL.Fil is
  31
  32    use Ada;
  33
  34    -------------
  35    -- Get_Ext --
  36    -------------
  37
  38    function Get_Ext (Filename : String) return String is
  39       use Strings.Fixed;
  40       I : constant Natural := Index (Filename, ".", Strings.Backward);
  41    begin
  42       if I = 0 then
  43          return "";
  44       else
  45          return Filename (I .. Filename'Last);
  46       end if;
  47    end Get_Ext;
  48
  49    ------------
  50    -- Is_Ali --
  51    ------------
  52
  53    function Is_Ali (Filename : String) return Boolean is
  54    begin
  55       return Get_Ext (Filename) = ".ali";
  56    end Is_Ali;
  57
  58    ------------
  59    -- Is_Obj --
  60    ------------
  61
  62    function Is_Obj (Filename : String) return Boolean is
  63       Ext : constant String := Get_Ext (Filename);
  64    begin
  65       return Ext = ".o" or else Ext = ".obj";
  66    end Is_Obj;
  67
  68    ------------
  69    -- Ext_To --
  70    ------------
  71
  72    function Ext_To
  73      (Filename : String;
  74       New_Ext  : String := No_Ext)
  75       return     String
  76    is
  77       use Strings.Fixed;
  78       I : constant Natural := Index (Filename, ".", Strings.Backward);
  79    begin
  80       if I = 0 then
  81          return Filename;
  82
  83       else
  84          if New_Ext = "" then
  85             return Filename (Filename'First .. I - 1);
  86          else
  87             return Filename (Filename'First .. I - 1) & '.' & New_Ext;
  88          end if;
  89       end if;
  90    end Ext_To;
  91
  92 end MDLL.Fil;