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------------------------------------------------------------------------------
--                                                                          --
--                         GNAT COMPILER COMPONENTS                         --
--                                                                          --
--                                F N A M E                                 --
--                                                                          --
--                                 S p e c                                  --
--                                                                          --
--          Copyright (C) 1992-2009, 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 package, together with its child package Fname.UF define the
--  association between source file names and unit names as defined
--  (see package Uname for definition of format of unit names).
 
with Namet; use Namet;
 
package Fname is
 
   --  Note: this package spec does not depend on the Uname spec in the Ada
   --  sense, but the comments and description of the semantics do depend on
   --  the conventions established by Uname.
 
   ---------------------------
   -- File Name Conventions --
   ---------------------------
 
   --  GNAT requires that there be a one to one correspondence between source
   --  file names (as used in the Osint package interface) and unit names as
   --  defined by the Uname package. This correspondence is defined by the
   --  two subprograms defined here in the Fname package.
 
   --   For full rules of file naming, see GNAT User's Guide. Note that the
   --   naming rules are affected by the presence of Source_File_Name pragmas
   --   that have been previously processed.
 
   --  Note that the file name does *not* include the directory name. The
   --  management of directories is provided by Osint, and full file names
   --  are used only for error message purposes within GNAT itself.
 
   -----------------
   -- Subprograms --
   -----------------
 
   function Is_Predefined_File_Name
     (Fname              : File_Name_Type;
      Renamings_Included : Boolean := True) return Boolean;
   --  This function determines if the given file name (which must be a simple
   --  file name with no directory information) is the file name for one of the
   --  predefined library units (i.e. part of the Ada, System, or Interface
   --  hierarchies). Note that units in the GNAT hierarchy are not considered
   --  predefined (see Is_Internal_File_Name below). On return, Name_Buffer
   --  contains the file name. The Renamings_Included parameter indicates
   --  whether annex J renamings such as Text_IO are to be considered as
   --  predefined. If Renamings_Included is True, then Text_IO will return
   --  True, otherwise only children of Ada, Interfaces and System return True.
 
   function Is_Predefined_File_Name
     (Renamings_Included : Boolean := True) return Boolean;
   --  This version is called with the file name already in Name_Buffer
 
   function Is_Internal_File_Name
     (Fname              : File_Name_Type;
      Renamings_Included : Boolean := True) return Boolean;
   --  Similar to Is_Predefined_File_Name. The internal file set is a superset
   --  of the predefined file set including children of GNAT, and also children
   --  of DEC for the VMS case.
 
   procedure Tree_Read;
   --  Dummy procedure (reads dummy table values from tree file)
 
   procedure Tree_Write;
   --  Writes out internal tables to current tree file using Tree_Write
   --  This is actually a dummy routine, since the relevant table is
   --  no longer used, but we retain it for now, to avoid a tree file
   --  incompatibility with the 3.13 compiler. Should be removed for
   --  the 3.14a release ???
 
end Fname;