Beefy Boxes and Bandwidth Generously Provided by pair Networks
There's more than one way to do things

Re: Key-Board Interactive Perl Application

by GrandFather (Sage)
on Dec 12, 2012 at 05:44 UTC ( #1008453=note: print w/ replies, xml ) Need Help??

in reply to Key-Board Interactive Perl Application

For that sort of application I use light weight OO. Consider:

use strict; use warnings; my $obj = bless {indent => '...'}; for my $suffix (qw(hello world)) { my $func = $obj->can("print_$suffix"); next if ! $func; $func->($obj, " (suffix was $suffix)"); } sub print_hello { my ($self, $suffix) = @_; print "$self->{indent}hello$suffix\n"; } sub print_world { my ($self, $suffix) = @_; print "$self->{indent}world$suffix\n"; }


...hello (suffix was hello) (suffix was world)

There are a few subtle things going on there. If you've not used OO before notice that the object ($obj) carries along a hash reference so you can provide common information (see how 'indent' is used).

The reason the sub names have a 'print_' prefix is so that user provided names can't be used to call unintended subs.

True laziness is hard work

Comment on Re: Key-Board Interactive Perl Application
Select or Download Code

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1008453]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others avoiding work at the Monastery: (4)
As of 2015-11-28 13:43 GMT
Find Nodes?
    Voting Booth?

    What would be the most significant thing to happen if a rope (or wire) tied the Earth and the Moon together?

    Results (742 votes), past polls