epson2: added tool to generate device list

tools/epson2usb.pl

@@ -0,0 +1,63 @@
+#!/usr/bin/perl -w
+
+# Creates an USB device list from the description file
+#
+# epson2usb.pl doc/descriptions/epson2.desc
+#
+# Copyright (C) 2010 Tower Technologies
+# Author: Alessandro Zummo <a.zummo@towertech.it>
+#
+# This file is part of the SANE package.
+#
+# 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, version 2.
+
+use strict;
+use warnings;
+
+	my %ids;
+	my @models;
+	my $i = 0;
+
+	while (<>) {
+
+		my $flip = /^:model/ ... /^$/;
+
+		$models[$i]{$1} = $2
+			if /^:(\w+)\s+(.+)/;
+
+		$i++
+			if $flip =~ /E0$/;
+	}
+
+	foreach my $m (@models) {
+		
+		next unless defined $m->{'usbid'};
+		next if $m->{'status'} eq ':unsupported';
+
+#		print $m->{'model'} , "\n";
+#		print "-", $m->{'usbid'} , "-\n";
+
+		next unless $m->{'usbid'} =~ /"0x04b8"\s+"(0x[[:xdigit:]]+)"/;
+
+		my $id = $1;
+
+#		print $id, "\n";
+
+		$id =~ s/0x0/0x/;
+
+		$m->{'model'} =~ s/;.+$//;
+		$m->{'model'} =~ s/\"//g;
+		$m->{'model'} =~ s/\s+$//;
+
+		push(@{$ids{$id}}, $m->{'model'});
+	}
+
+	foreach (sort keys %ids) {
+		print '  ', $_, ', /* ';
+		print join(', ', @{$ids{$_}});
+		print " */\n";
+	}
+
+