File : 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) 1992-2007, 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;