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------------------------------------------------------------------------------
-- Templates Parser --
-- --
-- Copyright (C) 2008-2012, AdaCore --
-- --
-- This 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 3, or (at your option) any --
-- later version. This software is distributed in the hope that it will --
-- be useful, but WITHOUT ANY WARRANTY; without even the implied warranty --
-- of MERCHANTABILITY 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 this software; see file COPYING3. If not, go --
-- to http://www.gnu.org/licenses for a complete copy of the license. --
------------------------------------------------------------------------------
-- This tool parses a file specified on the command line, and generates
-- another file. It can be used as a preprocessor.
with Ada.Command_Line;
with Ada.Strings.Unbounded;
with Ada.Text_IO;
with GNAT.Command_Line;
with Templates_Parser;
procedure TemplatesPP is
use Ada;
use Ada.Command_Line;
use Ada.Strings.Unbounded;
use GNAT.Command_Line;
procedure Help;
-- Print help message
procedure Process (In_File : String; Output : Text_IO.File_Type);
-- Parses In_File, and print the result to Output
----------
-- Help --
----------
procedure Help is
begin
Text_IO.Put_Line ("Pre-processor based on the templates parser");
Text_IO.Put_Line (Command_Name & " [-o output] file");
Text_IO.Put_Line
(" Parses file and generate output file (or display on stdout)");
end Help;
-------------
-- Process --
-------------
procedure Process (In_File : String; Output : Text_IO.File_Type) is
begin
Text_IO.Put_Line (Output, Templates_Parser.Parse (In_File));
end Process;
F : Text_IO.File_Type;
Output_File : Unbounded_String;
begin
loop
case Getopt ("o: h -help") is
when 'h' =>
Help;
return;
when '-' =>
if Full_Switch = "-help" then
Help;
return;
end if;
when 'o' =>
Output_File := To_Unbounded_String (Parameter);
when others =>
exit;
end case;
end loop;
declare
Input : constant String := Get_Argument;
begin
if Input = "" then
Help;
elsif Output_File = Null_Unbounded_String then
Process (Input, Text_IO.Standard_Output);
else
Text_IO.Create (F, Text_IO.Out_File, To_String (Output_File));
Process (Input, F);
Text_IO.Close (F);
end if;
end;
exception
when Text_IO.Name_Error =>
Text_IO.Put_Line ("Input file not found");
end TemplatesPP;
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