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Mail::Box::Tie::HASH(3pm) - phpMan

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Mail::Box::Tie::HASH(3pm)      User Contributed Perl Documentation      Mail::Box::Tie::HASH(3pm)

       Mail::Box::Tie::HASH - access an existing message folder as a hash

        tie my(%inbox), 'Mail::Box::Tie::HASH', $folder;

        foreach my $msgid (keys %inbox)
        {   print $inbox{$msgid};
            delete $inbox{$msgid};

        $inbox{$msg->messageId} = $msg;

       Certainly when you look at a folder as being a set of related messages based on message-
       id, it is logical to access the folder through a hash.

       For a tied hash, the message-id is used as the key.  The message-id is usually unique, but
       when two or more instances of the same message are in the same folder, one will be flagged
       for deletion and the other will be returned.

       This implementation uses basic folder access routines which are related to the message-id.

       TIEHASH('Mail::Box::Tie::HASH', FOLDER)
           Connects the FOLDER object to a HASH.


            my $mgr    = Mail::Box::Manager->new;
            my $folder = $mgr->open(access => 'rw');
            tie my(%inbox), 'Mail::Box::Tie::HASH', $folder;

   Tied Interface
           Remove the contents of the hash.  This is not really possible, but all the messages
           will be flagged for deletion.


            %inbox = ();
            %inbox = ($msg->messageId, $msg); #before adding msg

           Remove the message with the specified $message_id.


            delete $inbox{$msgid};

           Check whether a message with a certain $message_id exists.


            if(exists $inbox{$msgid}) ...

           Get the message with the specified id.  The returned message may be a dummy if message
           thread detection is used.  Returns "undef" when there is no message with the specified


            my $msg = $inbox{$msgid};
            if($inbox{$msgid}->isDummy)  ...

           See NEXTKEY().

           FIRSTKEY() returns the first message-id/message pair from the folder, and NEXTKEY
           returns the message-id/message pair for the next message, in the order in which the
           message is stored in the folder.

           Messages flagged for deletion will not be returned. See the Mail::Box::messages()
           method of the folder type for more information about the folder message order.


            foreach my $msgid (keys %inbox) ...
            foreach my $msg (values %inbox) ...

            while(my ($msgid, $msg) = each %inbox) {
               $msg->print unless $msg->isDeleted;

       $obj->STORE(undef, $message)
           Store a message in the folder.  The key must be "undef", because the message-id of the
           specified message is taken.  This is shown in the first example.  However, as you see,
           it is a bit complicated to specify "undef", therefore the string "undef" is accepted
           as well.

           The message may be converted into something which can be stored in the folder type
           which is at stake.  The added instance is returned.


            $inbox{ (undef) } = $msg;
            $inbox{undef} = $msg;

       This module is part of Mail-Box distribution version 2.117, built on August 24, 2014.
       Website: http://perl.overmeer.net/mailbox/

       Copyrights 2001-2014 by [Mark Overmeer]. For other contributors see ChangeLog.

       This program is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself.  See http://www.perl.com/perl/misc/Artistic.html

perl v5.20.0                                2014-08-24                  Mail::Box::Tie::HASH(3pm)

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