Michelle Konzack wrote:
Hello John,
Hello,
thank you for your answer.
You're welcome.
Am 2008-06-02 17:34:30, schrieb John W. Krahn:
According to the documentation for that module:
list
my $message_size = $imap->list($message_number);
my $mailbox_sizes = $imap->list;
This method returns size information for a message, as indicated
in the single optional parameter, or all messages in a mailbox.
When querying a single message a scalar value is returned. When
listing the entire mailbox a hash is returned. On failure,
"undef" is returned.
So if you use list() with no message number supplied it will return a
*reference* to a hash that contains the message numbers as the keys and
the corresponding message sizes as the values.
Since I am begining to learn Perl, how do I get the Value from the hash?
# Get a hash reference from $imap->list
my $mailbox_sizes = $imap->list;
my $total_size;
# Get the total size from the dereferenced hash values
$total_size += $_ for values %$mailbox_sizes;
Note: I have no internet @home which mean, I have only the perldoc
documentation and not more and I have not found the thing
about hashes.
perldoc perl
[snip]
Tutorials
perlreftut Perl references short introduction
perldsc Perl data structures intro
perllol Perl data structures: arrays of arrays
[snip]
Reference Manual
[snip]
perldata Perl data structures
[snip]
perlref Perl references, the rest of the story
Thanks, Greetings and nice Day
And you have a nice day as well.
John
--
Perl isn't a toolbox, but a small machine shop where you
can special-order certain sorts of tools at low cost and
in short order. -- Larry Wall
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
http://learn.perl.org/
