#!/usr/local/bin/perl
# SCCS $Id: wsl2scm,v 1.13 2002/03/08 12:25:36 dcs0mpw Exp $
#############################################################################
## FermaT Transformation System
## Copyright (C) 2001 Software Migrations Limited.
## Email: Martin.Ward@durham.ac.uk
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
##
## This program 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
## along with this program; if not, write to the Free Software
## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#############################################################################
#
##########
##########   wsl2scm file.wsl [file.scm]
##########
#

BEGIN {
  $FermaT = $ENV{'FermaT'} || "/usr/local/fermat2";
  $FermaT =~ s/"//g;
  $ds = "/"; $ds = "\\" if ($^O eq "MSWin32");
  unshift(@INC, "$FermaT${ds}config");
}

use fermat;

($myname = $0) =~ s|(.*/)*||;   # strip path component from name
$Usage = "Usage: $myname [-my] file.wsl [file.scm]\n";

# Check one or two arguments:
die $Usage if (($#ARGV < 0) || ($#ARGV > 1));

&parse_args();

($base = $input) =~ s|(.*/)*||;
$base =~ s/\.wsl$//;
$output = "$base.scm" if ($output eq "$base.out");

$cmds = <<END_OF_INPUT;
  (if (file-exists? "patch.scm")
      (load "patch.scm"))
  (\@New_Program (\@Parse_File "$input" //T_/Statements))
  (define tr-runtime (get-internal-run-time))
  (\@WSL_To_Scheme (\@Item) "$output" "$base")  
  (display-list "Translation time: " (- (get-internal-run-time) tr-runtime))
  (display-list "Result is in: $output")
END_OF_INPUT

&fermat($cmds);

# Check for and delete empty macros file:
unlink("$base-mac.scm") if ((-f "$base-mac.scm") && (!-s "$base-mac.scm"));
unlink("$output-mac.scm") if ((-f "$output-mac.scm") && (!-s "$output-mac.scm"));

exit(0);
