150 lines
4.4 KiB
Ada
150 lines
4.4 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT COMPILER COMPONENTS --
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-- --
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-- M L I B . F I L --
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-- --
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-- B o d y --
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-- --
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-- Copyright (C) 2001-2007, AdaCore --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
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-- for more details. You should have received a copy of the GNU General --
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-- Public License distributed with GNAT; see file COPYING3. If not, go to --
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-- http://www.gnu.org/licenses for a complete copy of the license. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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-- This package provides a set of routines to deal with file extensions
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with Ada.Strings.Fixed;
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with MLib.Tgt;
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package body MLib.Fil is
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use Ada;
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package Target renames MLib.Tgt;
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---------------
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-- Append_To --
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---------------
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function Append_To
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(Filename : String;
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Ext : String) return String
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is
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begin
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if Ext'Length = 0 then
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return Filename;
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elsif Filename (Filename'Last) = '.' then
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if Ext (Ext'First) = '.' then
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return Filename & Ext (Ext'First + 1 .. Ext'Last);
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else
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return Filename & Ext;
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end if;
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else
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if Ext (Ext'First) = '.' then
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return Filename & Ext;
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else
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return Filename & '.' & Ext;
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end if;
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end if;
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end Append_To;
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------------
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-- Ext_To --
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------------
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function Ext_To
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(Filename : String;
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New_Ext : String := "") return String
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is
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use Strings.Fixed;
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J : constant Natural :=
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Index (Source => Filename,
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Pattern => ".",
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Going => Strings.Backward);
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begin
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if J = 0 then
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if New_Ext = "" then
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return Filename;
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else
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return Filename & "." & New_Ext;
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end if;
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else
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if New_Ext = "" then
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return Head (Filename, J - 1);
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else
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return Head (Filename, J - 1) & '.' & New_Ext;
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end if;
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end if;
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end Ext_To;
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-------------
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-- Get_Ext --
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-------------
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function Get_Ext (Filename : String) return String is
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use Strings.Fixed;
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J : constant Natural :=
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Index (Source => Filename,
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Pattern => ".",
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Going => Strings.Backward);
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begin
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if J = 0 then
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return "";
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else
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return Filename (J .. Filename'Last);
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end if;
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end Get_Ext;
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----------------
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-- Is_Archive --
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----------------
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function Is_Archive (Filename : String) return Boolean is
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Ext : constant String := Get_Ext (Filename);
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begin
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return Target.Is_Archive_Ext (Ext);
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end Is_Archive;
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----------
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-- Is_C --
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----------
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function Is_C (Filename : String) return Boolean is
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Ext : constant String := Get_Ext (Filename);
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begin
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return Target.Is_C_Ext (Ext);
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end Is_C;
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------------
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-- Is_Obj --
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------------
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function Is_Obj (Filename : String) return Boolean is
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Ext : constant String := Get_Ext (Filename);
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begin
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return Target.Is_Object_Ext (Ext);
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end Is_Obj;
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end MLib.Fil;
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