On Tue, Nov 27, 2001 at 10:18:23AM +1030, Daniel Falkenberg wrote:
> foreach my $U (sort keys %PASS) {
Why are you sorting them? As far as your code is concerned it doesn't
matter what order you get them in, so it's pointless to sort it.
> $PASS{$U}{'fname'} = "";
> $PASS{$U}{'lname'} = "";
> $PASS{$U}{'user'} = "";
> $PASS{$U}{'password'} = "";
> }
> Of coarse all the above does is reset the hash values (%PASS) to equal
> nothing. I am pretty sure I can do this alot easier.]
It depends on your needs. If it doesn't matter that the keys exist, and
there are no other keys in the sub-hash that matter:
%$_ = () foreach values(%PASS);
> Also does the following have to be written like so?
>
> $new_user = $PASS{$PASSWD_NAME}{'user'};
> $new_pass = $PASS{$PASSWD_NAME}{'password'};
> $new_fname = $PASS{$PASSWD_NAME}{'fname'};
> $new_lname = $PASS{$PASSWD_NAME}{'lname'};
Does it have to be? Well, no, but that's probably the most readable for
what you want out of it. I might suggest keeping the hash around, but
decreasing the number of dereferences:
%new = %{ $PASS{$PASSWD_NAME} };
Then use $new{'user'} instead of $new_user, $new{'password'} instead of
$new_pass, etc.
> Do I have to declare each hash value like the above. Of coarse I want
> to be able to still declare a variable to each hash value that I want
Which above, the foreach, or the '$new_user = ...' assignments? You don't
have to declare hash keys to use them, and in fact you weren't declaring
your hash keys in any of your code; you were assigning values to them. For
that matter, there is no syntax for simply declaring hash keys, you have to
initialize them.
Michael
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