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,  51  Franklin  Street,  Fifth  Floor, --
  20 -- Boston, MA 02110-1301, 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
  34 with Unchecked_Conversion;
  35
  36 package body Fname.SF is
  37
  38    subtype Big_String is String (Positive);
  39    type Big_String_Ptr is access all Big_String;
  40
  41    function To_Big_String_Ptr is new Unchecked_Conversion
  42      (Source_Buffer_Ptr, Big_String_Ptr);
  43
  44    ----------------------
  45    -- Local Procedures --
  46    ----------------------
  47
  48    procedure Set_File_Name
  49      (Typ   : Character;
  50       U     : String;
  51       F     : String;
  52       Index : Natural);
  53    --  This is a transfer function that is called from Scan_SFN_Pragmas,
  54    --  and reformats its parameters appropriately for the version of
  55    --  Set_File_Name found in Fname.SF.
  56
  57    procedure Set_File_Name_Pattern
  58      (Pat : String;
  59       Typ : Character;
  60       Dot : String;
  61       Cas : Character);
  62    --  This is a transfer function that is called from Scan_SFN_Pragmas,
  63    --  and reformats its parameters appropriately for the version of
  64    --  Set_File_Name_Pattern found in Fname.SF.
  65
  66    -----------------------------------
  67    -- Read_Source_File_Name_Pragmas --
  68    -----------------------------------
  69
  70    procedure Read_Source_File_Name_Pragmas is
  71       Src : Source_Buffer_Ptr;
  72       Hi  : Source_Ptr;
  73       BS  : Big_String_Ptr;
  74       SP  : String_Ptr;
  75
  76    begin
  77       Name_Buffer (1 .. 8) := "gnat.adc";
  78       Name_Len := 8;
  79       Read_Source_File (Name_Enter, 0, Hi, Src);
  80
  81       if Src /= null then
  82          BS := To_Big_String_Ptr (Src);
  83          SP := BS (1 .. Natural (Hi))'Unrestricted_Access;
  84          Scan_SFN_Pragmas
  85            (SP.all,
  86             Set_File_Name'Access,
  87             Set_File_Name_Pattern'Access);
  88       end if;
  89    end Read_Source_File_Name_Pragmas;
  90
  91    -------------------
  92    -- Set_File_Name --
  93    -------------------
  94
  95    procedure Set_File_Name
  96      (Typ   : Character;
  97       U     : String;
  98       F     : String;
  99       Index : Natural)
 100    is
 101       Unm : Unit_Name_Type;
 102       Fnm : File_Name_Type;
 103    begin
 104       Name_Buffer (1 .. U'Length) := U;
 105       Name_Len := U'Length;
 106       Set_Casing (All_Lower_Case);
 107       Name_Buffer (Name_Len + 1) := '%';
 108       Name_Buffer (Name_Len + 2) := Typ;
 109       Name_Len := Name_Len + 2;
 110       Unm := Name_Find;
 111       Name_Buffer (1 .. F'Length) := F;
 112       Name_Len := F'Length;
 113       Fnm := Name_Find;
 114       Fname.UF.Set_File_Name (Unm, Fnm, Nat (Index));
 115    end Set_File_Name;
 116
 117    ---------------------------
 118    -- Set_File_Name_Pattern --
 119    ---------------------------
 120
 121    procedure Set_File_Name_Pattern
 122      (Pat : String;
 123       Typ : Character;
 124       Dot : String;
 125       Cas : Character)
 126    is
 127       Ctyp : Casing_Type;
 128       Patp : constant String_Ptr := new String'(Pat);
 129       Dotp : constant String_Ptr := new String'(Dot);
 130
 131    begin
 132       if Cas = 'l' then
 133          Ctyp := All_Lower_Case;
 134       elsif Cas = 'u' then
 135          Ctyp := All_Upper_Case;
 136       else -- Cas = 'm'
 137          Ctyp := Mixed_Case;
 138       end if;
 139
 140       Fname.UF.Set_File_Name_Pattern (Patp, Typ, Dotp, Ctyp);
 141    end Set_File_Name_Pattern;
 142
 143 end Fname.SF;