/usr/share/ada/adainclude/asis/a4g-defaults.adb is in libasis2017-dev 2017-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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-- --
-- ASIS-for-GNAT IMPLEMENTATION COMPONENTS --
-- --
-- A 4 G . D E F A U L T S --
-- --
-- Copyright (C) 1995-2014, Free Software Foundation, Inc. --
-- --
-- ASIS-for-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 --
-- Software Foundation; either version 2, or (at your option) any later --
-- version. ASIS-for-GNAT is distributed in the hope that it will be use- --
-- ful, but WITHOUT ANY WARRANTY; without even the implied warranty of MER- --
-- CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General --
-- Public License for more details. You should have received a copy of the --
-- GNU General Public License distributed with ASIS-for-GNAT; see file --
-- COPYING. If not, write to the Free Software Foundation, 51 Franklin --
-- Street, Fifth Floor, Boston, MA 02110-1301, USA. --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- ASIS-for-GNAT was originally developed by the ASIS-for-GNAT team at the --
-- Software Engineering Laboratory of the Swiss Federal Institute of --
-- Technology (LGL-EPFL) in Lausanne, Switzerland, in cooperation with the --
-- Scientific Research Computer Center of Moscow State University (SRCC --
-- MSU), Russia, with funding partially provided by grants from the Swiss --
-- National Science Foundation and the Swiss Academy of Engineering --
-- Sciences. ASIS-for-GNAT is now maintained by AdaCore --
-- (http://www.adacore.com). --
-- --
------------------------------------------------------------------------------
with Unchecked_Deallocation;
with A4G.A_Osint; use A4G.A_Osint;
with A4G.U_Conv; use A4G.U_Conv;
with Output; use Output;
package body A4G.Defaults is
procedure Free_String is new Unchecked_Deallocation
(String, String_Access);
procedure Add_Src_Search_Dir (Dir : String);
-- Add Dir at the end of the default source file search path.
procedure Add_Lib_Search_Dir (Dir : String);
-- Add Dir at the end of the default library (=object+ALI) file search
-- path.
------------------------
-- Add_Lib_Search_Dir --
------------------------
procedure Add_Lib_Search_Dir (Dir : String) is
begin
ASIS_Lib_Search_Directories.Increment_Last;
ASIS_Lib_Search_Directories.Table (ASIS_Lib_Search_Directories.Last) :=
new String'(Normalize_Directory_Name (Dir));
end Add_Lib_Search_Dir;
------------------------
-- Add_Src_Search_Dir --
------------------------
procedure Add_Src_Search_Dir (Dir : String) is
begin
ASIS_Src_Search_Directories.Increment_Last;
ASIS_Src_Search_Directories.Table (ASIS_Src_Search_Directories.Last) :=
new String'(Normalize_Directory_Name (Dir));
end Add_Src_Search_Dir;
--------------
-- Finalize --
--------------
procedure Finalize is
begin
-- finalise ASIS_Src_Search_Directories:
for I in First_Dir_Id .. ASIS_Src_Search_Directories.Last loop
Free_String (ASIS_Src_Search_Directories.Table (I));
end loop;
-- finalize ASIS_Lib_Search_Directories:
for I in First_Dir_Id .. ASIS_Lib_Search_Directories.Last loop
Free_String (ASIS_Lib_Search_Directories.Table (I));
end loop;
-- finalize ASIS_Tree_Search_Directories
for I in First_Dir_Id .. ASIS_Tree_Search_Directories.Last loop
Free_String (ASIS_Tree_Search_Directories.Table (I));
end loop;
end Finalize;
----------------
-- Initialize --
----------------
procedure Initialize is
Search_Path : String_Access;
begin
-- just in case:
Finalize;
ASIS_Src_Search_Directories.Init;
ASIS_Lib_Search_Directories.Init;
ASIS_Tree_Search_Directories.Init;
-- stroring the defaults for: the code is stolen from Osint
-- (body, rev. 1.147) and then adjusted
for Dir_kind in Search_Dir_Kinds loop
case Dir_kind is
when Source =>
Search_Path := Getenv ("ADA_INCLUDE_PATH");
when Object =>
Search_Path := Getenv ("ADA_OBJECTS_PATH");
when Tree =>
-- There is no environment variable for separate
-- tree path at the moment;
exit;
end case;
if Search_Path'Length > 0 then
declare
Lower_Bound : Positive := 1;
Upper_Bound : Positive;
begin
loop
while Lower_Bound <= Search_Path'Last
and then Search_Path.all (Lower_Bound) =
Path_Separator
loop
Lower_Bound := Lower_Bound + 1;
end loop;
exit when Lower_Bound > Search_Path'Last;
Upper_Bound := Lower_Bound;
while Upper_Bound <= Search_Path'Last
and then Search_Path.all (Upper_Bound) /=
Path_Separator
loop
Upper_Bound := Upper_Bound + 1;
end loop;
case Dir_kind is
when Source =>
Add_Src_Search_Dir
(Search_Path.all (Lower_Bound .. Upper_Bound - 1));
when Object =>
Add_Lib_Search_Dir
(Search_Path.all (Lower_Bound .. Upper_Bound - 1));
when Tree =>
exit; -- non implemented yet;
end case;
Lower_Bound := Upper_Bound + 1;
end loop;
end;
end if;
end loop;
-- ??? TEMPORARY SOLUTION: the default objects search path
-- is also used as the default tree path
for J in First_Dir_Id .. ASIS_Lib_Search_Directories.Last loop
ASIS_Tree_Search_Directories.Increment_Last;
ASIS_Tree_Search_Directories.Table
(ASIS_Tree_Search_Directories.Last) :=
new String'(ASIS_Lib_Search_Directories.Table (J).all);
end loop;
Free (Search_Path);
end Initialize;
-------------------------
-- Locate_Default_File --
-------------------------
function Locate_Default_File
(File_Name : String_Access;
Dir_Kind : Search_Dir_Kinds)
return String_Access
is
function Is_Here_In_Src (File_Name : String_Access; Dir : Dir_Id)
return Boolean;
function Is_Here_In_Lib (File_Name : String_Access; Dir : Dir_Id)
return Boolean;
-- funtion Is_Here_In_Tree (File_Name : String_Access; Dir : Dir_Id)
-- return Boolean;
function Is_Here_In_Src (File_Name : String_Access; Dir : Dir_Id)
return Boolean
is
begin
return Is_Regular_File (ASIS_Src_Search_Directories.Table (Dir).all
& To_String (File_Name));
end Is_Here_In_Src;
function Is_Here_In_Lib (File_Name : String_Access; Dir : Dir_Id)
return Boolean
is
begin
return Is_Regular_File (ASIS_Lib_Search_Directories.Table (Dir).all
& To_String (File_Name));
end Is_Here_In_Lib;
begin
case Dir_Kind is
when Source =>
for Dir in First_Dir_Id .. ASIS_Src_Search_Directories.Last loop
if Is_Here_In_Src (File_Name, Dir) then
return new String'
(ASIS_Src_Search_Directories.Table (Dir).all
& File_Name.all);
end if;
end loop;
when Object =>
for Dir in First_Dir_Id .. ASIS_Lib_Search_Directories.Last loop
if Is_Here_In_Lib (File_Name, Dir) then
return new String'
(ASIS_Lib_Search_Directories.Table (Dir).all
& File_Name.all);
end if;
end loop;
when Tree =>
null; -- non implemented yet;
end case;
return null;
end Locate_Default_File;
------------------------
-- Print_Lib_Defaults --
------------------------
procedure Print_Lib_Defaults is
begin
if ASIS_Lib_Search_Directories.Last < First_Dir_Id then
Write_Str (" No default library files search path");
Write_Eol;
else
for Dir in First_Dir_Id .. ASIS_Lib_Search_Directories.Last loop
Write_Str (" " & ASIS_Lib_Search_Directories.Table (Dir).all);
Write_Eol;
end loop;
end if;
end Print_Lib_Defaults;
---------------------------
-- Print_Source_Defaults --
---------------------------
procedure Print_Source_Defaults is
begin
if ASIS_Src_Search_Directories.Last < First_Dir_Id then
Write_Str (" No default source search path");
Write_Eol;
else
for Dir in First_Dir_Id .. ASIS_Src_Search_Directories.Last loop
Write_Str (" " & ASIS_Src_Search_Directories.Table (Dir).all);
Write_Eol;
end loop;
end if;
end Print_Source_Defaults;
-------------------------
-- Print_Tree_Defaults --
-------------------------
procedure Print_Tree_Defaults is
begin
if ASIS_Tree_Search_Directories.Last < First_Dir_Id then
Write_Str (" No default tree files search path");
Write_Eol;
else
for Dir in First_Dir_Id .. ASIS_Tree_Search_Directories.Last loop
Write_Str (" " & ASIS_Tree_Search_Directories.Table (Dir).all);
Write_Eol;
end loop;
end if;
end Print_Tree_Defaults;
end A4G.Defaults;
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