use CGI qw(:all);
my $op = param('operation');

TestPkg->$dispatch('Hello!') if UNIVERSAL::can('TestPkg', $dispatch);

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You could also define an AUTOLOAD in TestPkg and forget about it entirely. 
my $input = <>;

$_->($input) for
    map /^_/ ? () : *{$TestPkg::{$_}}{CODE} || (),
    keys %TestPkg::;

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Or maybe 
my $input = <>;

my $sub;
!/^_/ && *$sub{CODE} && *$sub{CODE}->($input)
    while ($_, $sub) = each %TestPkg::;

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Any way you turn it though, I don't see the advantage of 
package Foo;
use Dispatch;

sub bar {
    ...
}

sub baz {
    ...
}

package main;

my $t = Foo->create_dptable;
$t->{bar}->($quux);

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over 
my $t = {
    bar => sub {
        ...
    },
    baz => sub {
        ...
    },
};

$t->{bar}->($quux);

[download]

If anything, the latter keeps together things that belong together and is quicker to grasp the purpose of.

Fixed minor errors thanks to jryan

Makeshifts last the longest.

In reply to Re^3: Easy dispatch tables. (still easier) by Aristotle
in thread Easy dispatch tables. by jryan

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