On 11-04-12 10:15 AM, marcos rebelo wrote:
On Tue, Apr 12, 2011 at 15:54, Paul Johnson<p...@pjcj.net> wrote:
> On Tue, Apr 12, 2011 at 03:26:49PM +0200, marcos rebelo wrote:
>> Hi all
>>
>> I have a code like:
>>
>> foreach my $key ( ... ) {
>> my $sub = "get_$key";
>> $self->$sub;
>> ...
>> }
>>
>> If I can do this, I can also do it without the variable $sub.
>
> You can do that. You can also do it without the variable $sub. But
> please don't. It is much clearer with the variable in place.
>
>> What is the syntax? please
>
> $self->${\"get_$key"};
>
> But please pretend that the answer is "no, you need the variable $sub".
This one is so ugly
What you're trying to do is called a symbolic reference. It is not
considered best practice. Instead, use a hash:
my %sub_hash = (
foo => \&foo,
bar => \&bar,
);
...
foreach my $key ( ... ){
$sub_hash{$key};
}
__END__
You also don't need $self since the subs are methods to the class and
are in the same file.
--
Just my 0.00000002 million dollars worth,
Shawn
Confusion is the first step of understanding.
Programming is as much about organization and communication
as it is about coding.
The secret to great software: Fail early & often.
Eliminate software piracy: use only FLOSS.
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