Class::StateMachine, Term::Interact example, dispatch table, IO::Prompter, Term::Interact, Term::Menu ...

poorly thought out example

use strict;
use warnings;
use Data::Dump qw/ dd pp /;

my $stash = menu_one(
    "say hi or say bye:\n",
    [ qr/hi/i => sub { print "hi\n"; $_[1]->{hi}++; 1 }, ],
    [ qr/quit|bye|adios/i => sub { print "bye bye\n"; 0 }, ],
);

dd( $stash );

dd(
    menu_one( "say why :",
        [ qr/.*/ => sub { die "why?!?!?\n"; 0 }, ],
    ),
);

sub menu_one {
    my( $header, @actions ) = @_;
    my $ret = 1;
    my $stash = {};
    while( $ret ){
        my $line = getone($header);
ACTION_LOOP:
        for my $action ( @actions ){
            my( $match, $callback ) = @$action;
            if( $line =~ $match ){
                $ret = $callback->( $line, $stash );
                last ACTION_LOOP;
            }
        }
    }
    return $stash;
}
sub getone { print @_; scalar <>; }
[download]