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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [ada/] [a-dirval.adb] - Rev 749

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------------------------------------------------------------------------------
--                                                                          --
--                         GNAT RUN-TIME COMPONENTS                         --
--                                                                          --
--             A D A . D I R E C T O R I E S . V A L I D I T Y              --
--                                                                          --
--                                 B o d y                                  --
--                             (POSIX Version)                              --
--                                                                          --
--          Copyright (C) 2004-2010, Free Software Foundation, Inc.         --
--                                                                          --
-- GNAT is free software;  you can  redistribute it  and/or modify it under --
-- terms of the  GNU General Public License as published  by the Free Soft- --
-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
--                                                                          --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception,   --
-- version 3.1, as published by the Free Software Foundation.               --
--                                                                          --
-- You should have received a copy of the GNU General Public License and    --
-- a copy of the GCC Runtime Library Exception along with this program;     --
-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
-- <http://www.gnu.org/licenses/>.                                          --
--                                                                          --
-- GNAT was originally developed  by the GNAT team at  New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc.      --
--                                                                          --
------------------------------------------------------------------------------
 
--  This is the POSIX version of this package
 
package body Ada.Directories.Validity is
 
   ---------------------------------
   -- Is_Path_Name_Case_Sensitive --
   ---------------------------------
 
   function Is_Path_Name_Case_Sensitive return Boolean is
   begin
      return True;
   end Is_Path_Name_Case_Sensitive;
 
   ------------------------
   -- Is_Valid_Path_Name --
   ------------------------
 
   function Is_Valid_Path_Name (Name : String) return Boolean is
   begin
      --  A path name cannot be empty and cannot contain any NUL character
 
      if Name'Length = 0 then
         return False;
 
      else
         for J in Name'Range loop
            if Name (J) = ASCII.NUL then
               return False;
            end if;
         end loop;
      end if;
 
      --  If Name does not contain any NUL character, it is valid
 
      return True;
   end Is_Valid_Path_Name;
 
   --------------------------
   -- Is_Valid_Simple_Name --
   --------------------------
 
   function Is_Valid_Simple_Name (Name : String) return Boolean is
   begin
      --  A file name cannot be empty and cannot contain a slash ('/') or
      --  the NUL character.
 
      if Name'Length = 0 then
         return False;
 
      else
         for J in Name'Range loop
            if Name (J) = '/' or else Name (J) = ASCII.NUL then
               return False;
            end if;
         end loop;
      end if;
 
      --  If Name does not contain any slash or NUL, it is valid
 
      return True;
   end Is_Valid_Simple_Name;
 
   -------------
   -- OpenVMS --
   -------------
 
   function OpenVMS return Boolean is
   begin
      return False;
   end OpenVMS;
 
   -------------
   -- Windows --
   -------------
 
   function Windows return Boolean is
   begin
      return False;
   end Windows;
 
end Ada.Directories.Validity;
 

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