gcc/ada/fname-sf.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                             F N A M E . S F                              --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --          Copyright (C) 1992-2004 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 2,  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 COPYING.  If not, write --
  19 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  20 -- MA 02111-1307, USA.                                                      --
  21 --                                                                          --
  22 -- GNAT was originally developed  by the GNAT team at  New York University. --
  23 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  24 --                                                                          --
  25 ------------------------------------------------------------------------------
  26
  27 with Casing;   use Casing;
  28 with Fname;    use Fname;
  29 with Fname.UF; use Fname.UF;
  30 with SFN_Scan; use SFN_Scan;
  31 with Namet;    use Namet;
  32 with Osint;    use Osint;
  33 with Types;    use Types;
  34
  35 with Unchecked_Conversion;
  36
  37 package body Fname.SF is
  38
  39    subtype Big_String is String (Positive);
  40    type Big_String_Ptr is access all Big_String;
  41
  42    function To_Big_String_Ptr is new Unchecked_Conversion
  43      (Source_Buffer_Ptr, Big_String_Ptr);
  44
  45    ----------------------
  46    -- Local Procedures --
  47    ----------------------
  48
  49    procedure Set_File_Name
  50      (Typ   : Character;
  51       U     : String;
  52       F     : String;
  53       Index : Natural);
  54    --  This is a transfer function that is called from Scan_SFN_Pragmas,
  55    --  and reformats its parameters appropriately for the version of
  56    --  Set_File_Name found in Fname.SF.
  57
  58    procedure Set_File_Name_Pattern
  59      (Pat : String;
  60       Typ : Character;
  61       Dot : String;
  62       Cas : Character);
  63    --  This is a transfer function that is called from Scan_SFN_Pragmas,
  64    --  and reformats its parameters appropriately for the version of
  65    --  Set_File_Name_Pattern found in Fname.SF.
  66
  67    -----------------------------------
  68    -- Read_Source_File_Name_Pragmas --
  69    -----------------------------------
  70
  71    procedure Read_Source_File_Name_Pragmas is
  72       Src : Source_Buffer_Ptr;
  73       Hi  : Source_Ptr;
  74       BS  : Big_String_Ptr;
  75       SP  : String_Ptr;
  76
  77    begin
  78       Name_Buffer (1 .. 8) := "gnat.adc";
  79       Name_Len := 8;
  80       Read_Source_File (Name_Enter, 0, Hi, Src);
  81
  82       if Src /= null then
  83          BS := To_Big_String_Ptr (Src);
  84          SP := BS (1 .. Natural (Hi))'Unrestricted_Access;
  85          Scan_SFN_Pragmas
  86            (SP.all,
  87             Set_File_Name'Access,
  88             Set_File_Name_Pattern'Access);
  89       end if;
  90    end Read_Source_File_Name_Pragmas;
  91
  92    -------------------
  93    -- Set_File_Name --
  94    -------------------
  95
  96    procedure Set_File_Name
  97      (Typ   : Character;
  98       U     : String;
  99       F     : String;
 100       Index : Natural)
 101    is
 102       Unm : Unit_Name_Type;
 103       Fnm : File_Name_Type;
 104    begin
 105       Name_Buffer (1 .. U'Length) := U;
 106       Name_Len := U'Length;
 107       Set_Casing (All_Lower_Case);
 108       Name_Buffer (Name_Len + 1) := '%';
 109       Name_Buffer (Name_Len + 2) := Typ;
 110       Name_Len := Name_Len + 2;
 111       Unm := Name_Find;
 112       Name_Buffer (1 .. F'Length) := F;
 113       Name_Len := F'Length;
 114       Fnm := Name_Find;
 115       Fname.UF.Set_File_Name (Unm, Fnm, Nat (Index));
 116    end Set_File_Name;
 117
 118    ---------------------------
 119    -- Set_File_Name_Pattern --
 120    ---------------------------
 121
 122    procedure Set_File_Name_Pattern
 123      (Pat : String;
 124       Typ : Character;
 125       Dot : String;
 126       Cas : Character)
 127    is
 128       Ctyp : Casing_Type;
 129       Patp : constant String_Ptr := new String'(Pat);
 130       Dotp : constant String_Ptr := new String'(Dot);
 131
 132    begin
 133       if Cas = 'l' then
 134          Ctyp := All_Lower_Case;
 135       elsif Cas = 'u' then
 136          Ctyp := All_Upper_Case;
 137       else -- Cas = 'm'
 138          Ctyp := Mixed_Case;
 139       end if;
 140
 141       Fname.UF.Set_File_Name_Pattern (Patp, Typ, Dotp, Ctyp);
 142    end Set_File_Name_Pattern;
 143
 144 end Fname.SF;