You can easilly get by strict if you use this: 
eval('&' . $action . '()');
if( $@ ) {
    die "Usage\n";
}

[download]
It might be good to check the text of the exception here to make sure it's from a missing sub. You might even be able to do this: 
my $subref = \&{$action};
die "Usage" unless defined &$subref();

[download]
I haven't tried that last though.

There's just no good reason to use OO here, and it makes the code more confusing and JAPH-ish. Maybe there's something else in your program that justifies OO, but this problem doesn't.

Incidentally, a nicer way to write that dispatch table from your above comment would be something like this (untested):

my %dispatch = (
                'this' => \&do_this,
                'that' => \&do_that,
               );

if (defined $dispatch{$action}) {
    &$dispatch{$action};
} else { die "Usage\n"; }

[download]

In reply to Re: Re: Re: Command line tool coding style? by perrin
in thread Command line tool coding style? by Aristotle

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