/usr/share/perl5/Acme/Morse.pm is in libacme-bleach-perl 1.13-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 | package Acme::Morse; $VERSION = 1.0;
my $signed = ".--.-..--..---.-.--."x2;
sub encypher { local $_ = unpack "b*", pop; tr/01/.-/; s/(.{40})/$1\n/g;
$signed."\n".$_ }
sub decypher { local $_ = pop; s/^$signed|[^.-]//g; tr/.-/01/; pack "b*", $_ }
sub garbled { $_[0] =~ /\S/ }
sub signed { $_[0] =~ /^$signed/ }
open 0 or print "Can't transmit '$0'\n" and exit;
(my $telegram = join "", <0>) =~ s/.*^\s*use\s+Acme::Morse\s*;\n//sm;
local $SIG{__WARN__} = \&garbled;
do {eval decypher $telegram; print STDERR $@ if $@; exit}
unless garbled $telegram && not signed $telegram;
open 0, ">$0" or print "Cannot encode '$0'\n" and exit;
print {0} "use Acme::Morse;\n", encypher $telegram and exit;
__END__
=head1 NAME
Acme::Morse - Perl programming in morse code
=head1 SYNOPSIS
use Acme::Morse;
print "S-O-S\n";
=head1 DESCRIPTION
The first time you run a program under C<use Acme::Morse>, the module converts
your program to Morse code. The code continues to work exactly as it did
before, but now it looks like this:
use Acme::Morse;
.--.-..--..---.-.--..--.-..--..---.-.--.
.-.-........---..-..---.-..-.--..---.--.
..-.---......-...-...-..--..-.-.-.--.-..
----..-.-.--.-..--..-.-...---.-..---.--.
.-...-..--.---...-.-....
=head1 DIAGNOSTICS
=over 4
=item C<Can't encode '%s'>
Acme::Morse could not access the source file to modify it.
=item C<Can't transmit '%s'>
Acme::Morse could not access the source file to execute it.
=back
=over 4
=back
=head1 AUTHOR
Damian Conway (as if you couldn't guess)
=head1 COPYRIGHT
Copyright (c) 2001, Damian Conway. All Rights Reserved.
This module is free software. It may be used, redistributed
and/or modified under the terms of the Perl Artistic License
(see http://www.perl.com/perl/misc/Artistic.html)
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