Great toy. Kudos ;-)

Here's a more usable interact using Term::Readline. OFC, I named it interact2 just to avoid overriding your code ;-)

sub interact2 {
    my $self = shift;

    eval { require Term::ReadLine };
    die "This method requires Term::ReadLine.\nError was: $@\n" if $@;

    # used for completion
    my @commands = map { $_->[0] } values %{$palias};

    my $term = Term::ReadLine->new('Logo');
    $term->Attribs->{attempted_completion_function} = sub {
        my $word = shift;
        $term->Attribs->{completion_word} = \@commands;
        return $term->completion_matches( $word,
            $term->Attribs->{list_completion_function} );
    };
    $term->Attribs->{attempted_completion_over} = sub {};
    while () {
        my $cmd = $term->readline( 'logo> ' );
        last if !defined $cmd;
        for ($cmd) {
            s/^\s+//;
            s/\s+$//;
        }
        next if $cmd !~ /\S/;
        if ( $cmd eq '?' || $cmd eq 'help' ) {
            $self->interactive_help();
        }
        elsif ( $cmd =~ /^(?i:q(?:uit)?|bye|exit)$/ ) {
            last;
        }
        else {
            $self->interactive_command($cmd);
            # adding only valid commands would be nice
            # - possible if "interactive_command" returns some status
            $term->addhistory($cmd);
        }
    }
    return 0;    # Exit interactive mode
}
[download]

Obviously, it requires Term::ReadLine to basically work, and Term::ReadLine::Gnu to be able to use the custom completion method.

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.