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