mmencode replacement in Perl

mimedecode.pl

@@ -0,0 +1,42 @@
+#! /usr/bin/perl
+
+# Copyright (C) 2007  Alex Schroeder <alex@emacswiki.org>
+#
+# 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 3 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, see <http://www.gnu.org/licenses/>.
+
+=head1 mimedecode.pl
+
+This script opens all files given as parameters on the command line
+and destructively converts them to binary files.
+
+Something similar could be achieved using command line tools.
+Unfortunately, they are not always available. If Perl's MIME library
+is available instead, you can use this script.
+
+=cut
+
+use MIME::Base64;
+
+local $/;
+while (<>) {
+  close ARGV;
+  if (substr($_,0,6) eq '#FILE ') {
+    print "$ARGV\n";
+    s/^.*\n//;
+    my $bytes = decode_base64($_);
+    open(F, "> $ARGV");
+    print F $bytes;
+    close F;
+  }
+}