/usr/share/perl5/Mail/Message/Head/Delayed.pod is in libmail-box-perl 2.099-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Mail::Message::Head::Delayed - a not-read header of a Mail::Message
=head1 INHERITANCE
Mail::Message::Head::Delayed realizes a Mail::Message::Head::Complete
Mail::Message::Head::Delayed
is a Mail::Message::Head
is a Mail::Reporter
=head1 SYNOPSIS
my $delayed = Mail::Message::Head::Delayed->new(...)
$delayed->isa('Mail::Message::Head') # true
$delayed->guessBodySize # undef
$delayed->isDelayed # true
=head1 DESCRIPTION
This object is used as place-holder, to be replaced
by a L<Mail::Message::Head|Mail::Message::Head> when someone accesses the header of a message.
=head1 OVERLOADED
=over 4
=item overload: B<"">
See L<Mail::Message::Head/"OVERLOADED">
=item overload: B<bool>
See L<Mail::Message::Head/"OVERLOADED">
=back
=head1 METHODS
=head2 Constructors
=over 4
=item $obj-E<gt>B<build>(FIELDS)
You cannot create a delayed header with fields.
=item Mail::Message::Head::Delayed-E<gt>B<new>(OPTIONS)
See L<Mail::Message::Head/"Constructors">
=back
=head2 The header
=over 4
=item $obj-E<gt>B<isDelayed>
See L<Mail::Message::Head/"The header">
=item $obj-E<gt>B<isEmpty>
See L<Mail::Message::Head/"The header">
=item $obj-E<gt>B<isModified>
See L<Mail::Message::Head/"The header">
=item $obj-E<gt>B<knownNames>
See L<Mail::Message::Head/"The header">
=item $obj-E<gt>B<message>([MESSAGE])
See L<Mail::Message::Head/"The header">
=item $obj-E<gt>B<modified>([BOOLEAN])
See L<Mail::Message::Head/"The header">
=item $obj-E<gt>B<orderedFields>
See L<Mail::Message::Head/"The header">
=back
=head2 Access to the header
=over 4
=item $obj-E<gt>B<get>(NAME [,INDEX])
Get the information about the header line NAME. Realization will
take place.
=item $obj-E<gt>B<study>(NAME [,INDEX])
See L<Mail::Message::Head/"Access to the header">
=back
=head2 About the body
=over 4
=item $obj-E<gt>B<guessBodySize>
On a delayed head, this retuns C<undef>, because when there is no header
there is also no body.
For messages in directory or network organized folders,
L<Mail::Message::size()|Mail::Message/"The message"> usually will give a figure for the whole message
without much cost. Subtract a few hundred bytes for the header, and
you will get a good estimate.
=item $obj-E<gt>B<guessTimeStamp>
Make a guess about when the message was originally posted.
On a delayed head, this returns C<undef>.
For messages in directory or network organized folders,
L<Mail::Message::timestamp()|Mail::Message/"The header"> usually will give a figure without much cost.
=item $obj-E<gt>B<isMultipart>
See L<Mail::Message::Head/"About the body">
=back
=head2 Internals
=over 4
=item $obj-E<gt>B<addNoRealize>(FIELD)
See L<Mail::Message::Head/"Internals">
=item $obj-E<gt>B<addOrderedFields>(FIELDS)
See L<Mail::Message::Head/"Internals">
=item $obj-E<gt>B<fileLocation>
See L<Mail::Message::Head/"Internals">
=item $obj-E<gt>B<load>
See L<Mail::Message::Head/"Internals">
=item $obj-E<gt>B<moveLocation>(DISTANCE)
See L<Mail::Message::Head/"Internals">
=item $obj-E<gt>B<read>(PARSER)
See L<Mail::Message::Head/"Internals">
=item $obj-E<gt>B<setNoRealize>(FIELD)
See L<Mail::Message::Head/"Internals">
=back
=head2 Error handling
=over 4
=item $obj-E<gt>B<AUTOLOAD>
See L<Mail::Reporter/"Error handling">
=item $obj-E<gt>B<addReport>(OBJECT)
See L<Mail::Reporter/"Error handling">
=item $obj-E<gt>B<defaultTrace>([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK])
=item Mail::Message::Head::Delayed-E<gt>B<defaultTrace>([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK])
See L<Mail::Reporter/"Error handling">
=item $obj-E<gt>B<errors>
See L<Mail::Reporter/"Error handling">
=item $obj-E<gt>B<log>([LEVEL [,STRINGS]])
=item Mail::Message::Head::Delayed-E<gt>B<log>([LEVEL [,STRINGS]])
See L<Mail::Reporter/"Error handling">
=item $obj-E<gt>B<logPriority>(LEVEL)
=item Mail::Message::Head::Delayed-E<gt>B<logPriority>(LEVEL)
See L<Mail::Reporter/"Error handling">
=item $obj-E<gt>B<logSettings>
See L<Mail::Reporter/"Error handling">
=item $obj-E<gt>B<notImplemented>
See L<Mail::Reporter/"Error handling">
=item $obj-E<gt>B<report>([LEVEL])
See L<Mail::Reporter/"Error handling">
=item $obj-E<gt>B<reportAll>([LEVEL])
See L<Mail::Reporter/"Error handling">
=item $obj-E<gt>B<trace>([LEVEL])
See L<Mail::Reporter/"Error handling">
=item $obj-E<gt>B<warnings>
See L<Mail::Reporter/"Error handling">
=back
=head2 Cleanup
=over 4
=item $obj-E<gt>B<DESTROY>
See L<Mail::Reporter/"Cleanup">
=item $obj-E<gt>B<inGlobalDestruction>
See L<Mail::Reporter/"Cleanup">
=back
=head1 DIAGNOSTICS
=over 4
=item Error: Cannot build() a delayed header.
A delayed message header cannot contain any information, so cannot be
build. You can construct complete or subset headers.
=item Error: Package $package does not implement $method.
Fatal error: the specific package (or one of its superclasses) does not
implement this method where it should. This message means that some other
related classes do implement this method however the class at hand does
not. Probably you should investigate this and probably inform the author
of the package.
=back
=head1 SEE ALSO
This module is part of Mail-Box distribution version 2.099,
built on July 07, 2011. Website: F<http://perl.overmeer.net/mailbox/>
=head1 LICENSE
Copyrights 2001-2011 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 F<http://www.perl.com/perl/misc/Artistic.html>
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