On a number of occasions, now, I've had a need, (well not so much a need as a desire), to implement a 'command handler'.
The concept being that I run myperl.pl update which would call the appropriate subroutine to do an update.
The way in which I've been doing this, is something like:
my %command_list = 
(
  'update' => 
  { 
    args => 2,
    function => *refresh_list,
  },
);

my $input=$ARGV[0]

&{ $command_list{$input}{'function'} }

[download]
(The actual sub, and the validation is missing for simplicity).
I suppose my question is, is there a better way of doing this?
(And a secondary question, if you look at the code I hacked together in emud.pl, even when I insert 'use strict' it allows me to use strings as sub refs, but in more recent code, it doesn't. This is somewhat confusing)
--
It's not pessimism if there is a worse option, it's not paranoia when they are and it's not cynicism when you're right.

In reply to Best way to handle 'commands' by Preceptor

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