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 --                            $Revision: 1.1 $
  10 --                                                                          --
  11 --          Copyright (C) 1992-2000 Free Software Foundation, Inc.          --
  12 --                                                                          --
  13 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  14 -- terms of the  GNU General Public License as published  by the Free Soft- --
  15 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  16 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  17 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  18 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  19 -- for  more details.  You should have  received  a copy of the GNU General --
  20 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  21 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  22 -- MA 02111-1307, USA.                                                      --
  23 --                                                                          --
  24 -- GNAT was originally developed  by the GNAT team at  New York University. --
  25 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  26 --                                                                          --
  27 ------------------------------------------------------------------------------
  28
  29 with Casing;   use Casing;
  30 with Fname;    use Fname;
  31 with Fname.UF; use Fname.UF;
  32 with SFN_Scan; use SFN_Scan;
  33 with Namet;    use Namet;
  34 with Osint;    use Osint;
  35 with Types;    use Types;
  36
  37 with Unchecked_Conversion;
  38
  39 package body Fname.SF is
  40
  41    subtype Big_String is String (Positive);
  42    type Big_String_Ptr is access all Big_String;
  43
  44    function To_Big_String_Ptr is new Unchecked_Conversion
  45      (Source_Buffer_Ptr, Big_String_Ptr);
  46
  47    ----------------------
  48    -- Local Procedures --
  49    ----------------------
  50
  51    procedure Set_File_Name (Typ : Character; U : String; F : String);
  52    --  This is a transfer function that is called from Scan_SFN_Pragmas,
  53    --  and reformats its parameters appropriately for the version of
  54    --  Set_File_Name found in Fname.SF.
  55
  56    procedure Set_File_Name_Pattern
  57      (Pat : String;
  58       Typ : Character;
  59       Dot : String;
  60       Cas : Character);
  61    --  This is a transfer function that is called from Scan_SFN_Pragmas,
  62    --  and reformats its parameters appropriately for the version of
  63    --  Set_File_Name_Pattern found in Fname.SF.
  64
  65    -----------------------------------
  66    -- Read_Source_File_Name_Pragmas --
  67    -----------------------------------
  68
  69    procedure Read_Source_File_Name_Pragmas is
  70       Src : Source_Buffer_Ptr;
  71       Hi  : Source_Ptr;
  72       BS  : Big_String_Ptr;
  73       SP  : String_Ptr;
  74
  75    begin
  76       Name_Buffer (1 .. 8) := "gnat.adc";
  77       Name_Len := 8;
  78       Read_Source_File (Name_Enter, 0, Hi, Src);
  79
  80       if Src /= null then
  81          BS := To_Big_String_Ptr (Src);
  82          SP := BS (1 .. Natural (Hi))'Unrestricted_Access;
  83          Scan_SFN_Pragmas
  84            (SP.all,
  85             Set_File_Name'Access,
  86             Set_File_Name_Pattern'Access);
  87       end if;
  88    end Read_Source_File_Name_Pragmas;
  89
  90    -------------------
  91    -- Set_File_Name --
  92    -------------------
  93
  94    procedure Set_File_Name (Typ : Character; U : String; F : String) is
  95       Unm : Unit_Name_Type;
  96       Fnm : File_Name_Type;
  97
  98    begin
  99       Name_Buffer (1 .. U'Length) := U;
 100       Name_Len := U'Length;
 101       Set_Casing (All_Lower_Case);
 102       Name_Buffer (Name_Len + 1) := '%';
 103       Name_Buffer (Name_Len + 2) := Typ;
 104       Name_Len := Name_Len + 2;
 105       Unm := Name_Find;
 106       Name_Buffer (1 .. F'Length) := F;
 107       Name_Len := F'Length;
 108       Fnm := Name_Find;
 109       Fname.UF.Set_File_Name (Unm, Fnm);
 110    end Set_File_Name;
 111
 112    ---------------------------
 113    -- Set_File_Name_Pattern --
 114    ---------------------------
 115
 116    procedure Set_File_Name_Pattern
 117      (Pat : String;
 118       Typ : Character;
 119       Dot : String;
 120       Cas : Character)
 121    is
 122       Ctyp : Casing_Type;
 123       Patp : constant String_Ptr := new String'(Pat);
 124       Dotp : constant String_Ptr := new String'(Dot);
 125
 126    begin
 127       if Cas = 'l' then
 128          Ctyp := All_Lower_Case;
 129       elsif Cas = 'u' then
 130          Ctyp := All_Upper_Case;
 131       else -- Cas = 'm'
 132          Ctyp := Mixed_Case;
 133       end if;
 134
 135       Fname.UF.Set_File_Name_Pattern (Patp, Typ, Dotp, Ctyp);
 136    end Set_File_Name_Pattern;
 137
 138 end Fname.SF;