>Von: Moran, Matthew [mailto:[EMAIL PROTECTED]]
>Gesendet am: Mittwoch, 20. November 2002 14:41
>Joachim suggested:
>> sub commify {
>> my $max = shift;
>> my $sep = shift;
>> my $end = shift;
>>
>> ...
>> }
>>
>> better or even worse in your view?
>
>Clearer, but just as bad IMHO. I've always done it as
>sub subroutine(
> my ($list, &of, $variables) = @_;
># rest of code here
>}
>It's how it's always shown in the Cookbook & what have you.
Not *always*, I've seen my version explicitly suggested somewhere. The
advantage in my eyes is that you consume the input parameters so they are
gone when you read them. It is also easier to check in the end if there are
any left so too many were supplied.
My formatting makes the parameters easy to comment. The overhead of the
shift should not be relevant.
But anyway, the parameter mechanism I'd prefer before positional parameters
would be
sub mysub {
my %params = (
thiskey => 'default1',
anotherkey => 'default2',
@_
);
# do something
}
without any shifting and consuming and whatever.
fwiw, Joachim
