#!/usr/bin/perl

use strict;

if (scalar(@ARGV) != 1) {
        print STDERR "usage: gen-eem.pl infile\n";
        exit(1);
}

my $infile = $ARGV[0];
if (!-f $infile) {
        print STDERR "File $infile does not exist.\n";
        exit(1);
}

unless (open(IN, $infile)) {
        print STDERR "Failed to open $infile for reading: $!\n";
        exit(1);
}

my $outfile = $infile;
$outfile =~ s/\.in$//;

my @contents = <IN>;
close(IN);

unless (open(OUT, ">$outfile")) {
        print STDERR "Failed to open $outfile for writing: $!\n";
        exit(1);
}

my $action = 1;
foreach my $line (@contents) {
        if ($line =~ /^#/) {
                $action = 1;
                $line =~ s/^#//;
                print OUT $line;
        } elsif ($line =~ /^!/) {
                print OUT $line;
        } elsif ($line =~ /^\@/) {
                $line =~ s/^\@//;
                print OUT $line;
        } else {
                my $act = sprintf(" action %03d ", $action++);
                print OUT $act . $line;
        }
}

close(OUT);