NAME

       Mail::Server::IMAP4::List - folder related IMAP4 answers

SYNOPSIS

        my $imap = Mail::Server::IMAP4::List->new
          ( folders   => $folders   # Mail::Box::Identity
          , inbox     => $inbox     # Mail::Box
          , delimiter => '#'
          );

        my $imap = Mail::Server::IMAP4::List->new(user => $user);
        print $imap->list(...);        # for LIST command

DESCRIPTION

METHODS

   Constructors
       Mail::Server::IMAP4::List->new($user)
           Create a (temporary) object to handle the LIST requests for a certain user, based upon
           a set of folders.  The data is kept by Mail::Box::Identity and Mail::Box::Collection
           objects, which mean that the folders will not be opened to answer these questions.

            -Option   --Default
             delimiter  '/'
             folders    <from user>
             inbox      <from user>
             user       <undef>

           delimiter => STRING|CODE
             Either the constant delimiter, or a code reference which will get passed a folder
             name and should return the delimiter string used in that name.  If that folder name
             is empty, the default delimiter must be reported.  See delimiter() for an example.

           folders => OBJECT
             You need to specify either a set of folders explicitly or via the user. Some
             Mail::Box::Identity OBJECT is needed.

           inbox => BOOLEAN
             For now, only used to see whether there is an inbox, so a truth value will do.  This
             may change in the future.  By default, the flag is set if "$user-"inbox> is defined.

           user => OBJECT
             A Mail::Box::Manage::User OBJECT, representing the user who's folders must get
             reported.

   Attributes
       $obj->delimiter( [$foldername] )
           Returns the delimiter string.  The foldername is only required when a CODE reference
           was specified at initiation.

           example: setting-up an IMAP4 delimiter

            sub delim($)
            {   my $path = shift;
                my ($delim, $root)
                  = $path =~ m/^(#news\.)/ ? ('.', $1)
                  = $path =~ m!^/!         ? ('/', '/')
                  :                          ('/', '');

                wantarray ? ($delim, $root) : $delim;
            }

            my $list = Mail::Server::IMAP4::List->new(delimiter => \&delim, ...);
            print $list->delimiter('abc/xyz');      # returns a / (slash) and ''
            print $list->delimiter('#news.feed');   # returns a . (dot)   and $news.
            print $list->delimiter('');             # returns default delimiter

       $obj->folders()
           Returns the Mail::Box::Identity of the toplevel folder.

       $obj->inbox()
           Returns the Mail::Box or filename of the INBOX.

       $obj->user()
           Returns the Mail::Box::Manage::User object, if defined.

   IMAP Commands
       $obj->list($base, $pattern)
           IMAP's LIST command.  The request must be partially decoded, the answer will need to
           be encoded.

           example: using IMAP list

            my $imap  = Mail::Server::IMAP4::List->new(delimiter => \&delim, ...);
            local $"  = ';';

            my @lines = $imap->list('', '');  # returns the default delimiter
            print ">@{$lines[0]}<";           #  >(\Noselect);/;<

            my @lines = $imap->list('#news',''); # specific delimiter
            print ">@{$lines[0]}<";           #  >(\Noselect);.;<

            my @lines = $imap->list('top/x/', '%');
            print ">@$_<," foreach @lines;    #  >();/;/tmp/x/y<,>(\Marked);/;/tmp/x/z<

DETAILS

       See

       RFC2060: "Internet Message Access Protocol IMAP4v1"
           sections 6.3.8 (LIST question) and 7.2.2 (LIST answer)

SEE ALSO

       This module is part of Mail-Box-IMAP4 distribution version 3.007, built on June 13, 2019.
       Website: http://perl.overmeer.net/CPAN/

LICENSE

       Copyrights 2001-2019 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://dev.perl.org/licenses/