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274 | ------------------------------------------------------------------------------
-- --
-- GNAT2XML COMPONENTS --
-- --
-- G N A T 2 X M L . X M L 2 G N A T --
-- --
-- B o d y --
-- --
-- Copyright (C) 2012-2016, AdaCore --
-- --
-- Gnat2xml 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. Gnat2xml is distributed in the hope that it will be useful, --
-- 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 GNAT; see file COPYING. If --
-- not, write to the Free Software Foundation, 59 Temple Place Suite 330, --
-- Boston, MA 02111-1307, USA. --
-- The gnat2xml tool was derived from the Avatox sources. --
------------------------------------------------------------------------------
pragma Ada_2012;
-- This program translates xml files generated by gnat2xml back into Ada
-- for testing purposes. The command line contains a list of the same Ada
-- files passed to gnat2xml. The xml files are assumed to be in an 'xml'
-- subdirectory of the directory in which the Ada source files are. So for
-- example, if the Ada source file is some/dir/mumble.adb, then the xml file
-- is found in some/dir/xml/mumble.adb.xml.
-- Output goes into subdirectories "generated_ada" and "self_rep" of the
-- output directory, which is the current directory by default, but can
-- be overridden with --output-dir=dir on the command line.
with ASIS_UL.Options;
with Ada.Wide_Text_IO; use Ada;
with Ada.Command_Line; use Ada.Command_Line;
with Ada.Directories; use Ada.Directories;
with Namet; use Namet;
with ASIS_UL.Formatted_Output; use ASIS_UL.Formatted_Output;
with Ada_Trees; use Ada_Trees;
with Gnat2xml.Xml2tree; use Gnat2xml.Xml2tree;
with Ada_Trees.Formatting; use Ada_Trees.Formatting;
with Ada_Trees.Self_Rep; use Ada_Trees.Self_Rep;
with Pp.Formatting; use Pp.Formatting;
procedure Gnat2xml.Xml2gnat is
Verbose_Mode : Boolean renames ASIS_UL.Options.Verbose_Mode;
Output_Dir : Name_Id := Name_Find (Current_Directory);
-- Default is current directory; can be overridden by --output-dir=dir
-- switch. Output goes in subdirectories of Output_Dir.
Self_Rep_Subdir : constant String := "self_rep";
Generated_Ada_Subdir : constant String := "generated_ada";
procedure Do_Nothing
(Original_Source_Name,
Xml_File_Name,
Self_Rep_Name,
Regen_Ada_Name,
Generated_Ada_Name : String) is null;
procedure Generate_Ada
(Original_Source_Name,
Xml_File_Name,
Self_Rep_Name,
Regen_Ada_Name,
Generated_Ada_Name : String);
procedure Iter_File_Names
(Action : not null access procedure
(Original_Source_Name,
Xml_File_Name,
Self_Rep_Name,
Regen_Ada_Name,
Generated_Ada_Name : String));
procedure Generate_Ada
(Original_Source_Name,
Xml_File_Name,
Self_Rep_Name,
Regen_Ada_Name,
Generated_Ada_Name : String)
is
Tree : constant Ada_Tree := Read_Xml (Xml_File_Name);
Self_Rep_File, Regen_Ada_File : Wide_Text_IO.File_Type;
begin
if not Debug_Mode then
if Verbose_Mode then
Put ("Creating \1\n", Self_Rep_Name);
end if;
Parallel_Make_Dir (Containing_Directory (Self_Rep_Name));
Wide_Text_IO.Create (Self_Rep_File, Name => Self_Rep_Name);
Wide_Text_IO.Set_Output (Self_Rep_File);
end if;
Put_Self_Rep (Tree);
if not Debug_Mode then
Wide_Text_IO.Set_Output (Wide_Text_IO.Standard_Output);
Wide_Text_IO.Close (Self_Rep_File);
end if;
if not Debug_Mode then
if Verbose_Mode then
Put ("Creating \1\n", Regen_Ada_Name);
end if;
Parallel_Make_Dir (Containing_Directory (Regen_Ada_Name));
Wide_Text_IO.Create (Regen_Ada_File, Name => Regen_Ada_Name);
Wide_Text_IO.Set_Output (Regen_Ada_File);
end if;
Put ("-- Created by xml2gnat\n\n");
Put_Regen_Ada (Tree);
if not Debug_Mode then
Wide_Text_IO.Set_Output (Wide_Text_IO.Standard_Output);
Wide_Text_IO.Close (Regen_Ada_File);
end if;
if not Debug_Mode then
if Verbose_Mode then
Put ("Creating \1\n", Generated_Ada_Name);
end if;
Parallel_Make_Dir (Containing_Directory (Generated_Ada_Name));
end if;
if False then -- ???Messes up the diff's.
Put ("-- Created by xml2gnat\n\n");
end if;
declare
Options : constant Formatting_Options :=
(Reformat_Comment_Block => True,
Decimal_Grouping => 3,
Based_Grouping => 4,
others => <>);
begin
Tree_To_Ada (Tree, Original_Source_Name, Options,
Output_Name => Generated_Ada_Name);
end;
Format_Debug_Output ("Generate_Ada");
Free_Tree (Tree);
end Generate_Ada;
procedure Iter_File_Names
(Action : not null access procedure
(Original_Source_Name,
Xml_File_Name,
Self_Rep_Name,
Regen_Ada_Name,
Generated_Ada_Name : String))
is
begin
for X in 1 .. Argument_Count loop
if Has_Prefix (Argument (X), Prefix => "-") then
if Argument (X) = "--debug" then
Debug_Mode := True;
elsif Argument (X) = "-v" then
Verbose_Mode := True;
elsif Has_Prefix (Argument (X), Prefix => "--output-dir=") then
Output_Dir :=
Name_Find
(Full_Name
(Strip_Prefix
(Argument (X),
Prefix => "--output-dir=")));
else
raise Program_Error with "unknown switch";
end if;
else
declare
Original_Source_Name : constant String := Argument (X);
-- for example, "some/directory/some-package.adb"
Original_Source_Dir : constant String :=
Containing_Directory (Original_Source_Name);
-- for example, "some/directory"
Xml_Dir : constant String :=
Compose
(Containing_Directory => Original_Source_Dir,
Name => "xml");
-- for example, "some/directory/xml"
Xml_File_Name : constant String :=
Compose
(Containing_Directory => Xml_Dir,
Name => Simple_Name (Original_Source_Name),
Extension => "xml");
-- for example, "some/directory/xml/some-package.adb.xml"
Self_Rep_Name : constant String :=
Compose
(Containing_Directory =>
Compose (Get_Name_String (Output_Dir), Self_Rep_Subdir),
Name => Simple_Name (Original_Source_Name),
Extension => "self_rep.ada");
-- for example, "./self_rep/some-package.adb.self_rep.ada"
Regen_Ada_Name : constant String :=
Compose
(Containing_Directory =>
Compose (Get_Name_String (Output_Dir), Self_Rep_Subdir),
Name => Simple_Name (Original_Source_Name),
Extension => "regen_ada.ada");
-- for example, "./self_rep/some-package.adb.regen_ada.ada"
Generated_Ada_Name : constant String :=
Compose
(Containing_Directory =>
Compose
(Get_Name_String (Output_Dir),
Generated_Ada_Subdir),
Name => Simple_Name (Original_Source_Name));
-- for example, "./generated_ada/some-package.adb"
begin
-- We don't want to overwrite the original source code, and
-- Generated_Ada_Name is the same name. Note that in --debug
-- mode, we don't write any files.
if not Debug_Mode
and then Generated_Ada_Name = Original_Source_Name
then
raise Program_Error
with "output file same as input: " & Generated_Ada_Name;
end if;
Action
(Original_Source_Name,
Xml_File_Name,
Self_Rep_Name,
Regen_Ada_Name,
Generated_Ada_Name);
end;
end if;
end loop;
end Iter_File_Names;
-- Start of processing for Xml2gnat
begin
if Argument_Count = 0 then
raise Program_Error with "missing arguments";
end if;
-- Go through all the files doing nothing, first, to check that we're not
-- overwriting any sources. Also to pick up a "--debug" switch.
Iter_File_Names (Do_Nothing'Access);
-- Now go through again, this time doing the real work
Iter_File_Names (Generate_Ada'Access);
Main_Done := True;
end Gnat2xml.Xml2gnat;
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