Provided by: libmail-message-perl_3.015-1_all bug

NAME

       Mail::Message::Body::Nested - body of a message which contains a message

INHERITANCE

        Mail::Message::Body::Nested
          is a Mail::Message::Body
          is a Mail::Reporter

SYNOPSIS

        See Mail::Message::Body

        if($body->isNested) {
           my $nest = $body->nested;
           $nest->delete;
        }

DESCRIPTION

       The body (content) of a message can be stored in various ways.  In this manual-page you
       find the description of extra functionality you have when a message contains a nested
       message, like "message/rfc822".

       A nested message is different from a multipart message which contains only one element,
       because a nested message has a full set of message header fields defined by the RFC882,
       where a part of a multipart has only a few.  But because we do not keep track whether all
       fields are presented, a "Mail::Message::Part" is used anyway.

       WARNING: Since 2023, at least outlook started to interpret RFC6533 incorrectly.  Bodies of
       type 'message/rfc822' can only be 'nested', but when they (illegally) have Content-
       Transfer-Encoding, they can now behave like normal message parts (the same as a pdf or
       image).

       Extends "DESCRIPTION" in Mail::Message::Body.

OVERLOADED

       Extends "OVERLOADED" in Mail::Message::Body.

       overload: ""
           Inherited, see "OVERLOADED" in Mail::Message::Body

       overload: '==' and '!='
           Inherited, see "OVERLOADED" in Mail::Message::Body

       overload: @{}
           Inherited, see "OVERLOADED" in Mail::Message::Body

       overload: bool
           Inherited, see "OVERLOADED" in Mail::Message::Body

METHODS

       Extends "METHODS" in Mail::Message::Body.

   Constructors
       Extends "Constructors" in Mail::Message::Body.

       $obj->clone()
           Inherited, see "Constructors" in Mail::Message::Body

       Mail::Message::Body::Nested->new(%options)
            -Option           --Defined in         --Default
             based_on           Mail::Message::Body  undef
             charset            Mail::Message::Body  'PERL'
             checked            Mail::Message::Body  <false>
             content_id         Mail::Message::Body  undef
             data               Mail::Message::Body  undef
             description        Mail::Message::Body  undef
             disposition        Mail::Message::Body  undef
             eol                Mail::Message::Body  'NATIVE'
             file               Mail::Message::Body  undef
             filename           Mail::Message::Body  undef
             log                Mail::Reporter       'WARNINGS'
             message            Mail::Message::Body  undef
             mime_type          Mail::Message::Body  'message/rfc822'
             modified           Mail::Message::Body  <false>
             nested                                  undef
             trace              Mail::Reporter       'WARNINGS'
             transfer_encoding  Mail::Message::Body  'none'

           based_on => BODY
           charset => CHARSET|'PERL'|<undef>
           checked => BOOLEAN
           content_id => STRING
           data => ARRAY-OF-LINES | STRING
           description => STRING|FIELD
           disposition => STRING|FIELD
           eol => 'CR'|'LF'|'CRLF'|'NATIVE'
           file => FILENAME|FILEHANDLE|IOHANDLE
           filename => FILENAME
           log => LEVEL
           message => MESSAGE
           mime_type => STRING|FIELD|MIME
           modified => BOOLEAN
           nested => MESSAGE
             The message which is encapsulated within this body.

           trace => LEVEL
           transfer_encoding => STRING|FIELD

           example:

            my $msg   = $folder->message(3);
            my $encaps= Mail::Message::Body::Nested->new(nested => $msg);

            # The body will be coerced into a message, which lacks a few
            # lines but we do not bother.
            my $intro = Mail::Message::Body->new(data => ...);
            my $body  = Mail::Message::Body::Nested->new(nested  => $intro);

   Constructing a body
       Extends "Constructing a body" in Mail::Message::Body.

       $obj->attach($messages, %options)
           Inherited, see "Constructing a body" in Mail::Message::Body::Construct

       $obj->charsetDetect(%options)
           Inherited, see "Constructing a body" in Mail::Message::Body::Encode

       Mail::Message::Body::Nested->charsetDetectAlgorithm( [CODE|undef|METHOD] )
           Inherited, see "Constructing a body" in Mail::Message::Body::Encode

       $obj->check()
           Inherited, see "Constructing a body" in Mail::Message::Body::Encode

       $obj->concatenate($components)
           Inherited, see "Constructing a body" in Mail::Message::Body::Construct

       $obj->decoded(%options)
           Inherited, see "Constructing a body" in Mail::Message::Body

       $obj->encode(%options)
           Inherited, see "Constructing a body" in Mail::Message::Body::Encode

       $obj->encoded(%options)
           Inherited, see "Constructing a body" in Mail::Message::Body::Encode

       $obj->eol( ['CR'|'LF'|'CRLF'|'NATIVE'] )
           Inherited, see "Constructing a body" in Mail::Message::Body

       $obj->foreachLine((CODE))
           It is NOT possible to call some code for each line of a nested because that would
           damage the header of the encapsulated message

       $obj->stripSignature(%options)
           Inherited, see "Constructing a body" in Mail::Message::Body::Construct

       $obj->unify($body)
           Inherited, see "Constructing a body" in Mail::Message::Body::Encode

   The body
       Extends "The body" in Mail::Message::Body.

       $obj->isDelayed()
           Inherited, see "The body" in Mail::Message::Body

       $obj->isMultipart()
           Inherited, see "The body" in Mail::Message::Body

       $obj->isNested()
           Inherited, see "The body" in Mail::Message::Body

       $obj->message( [$message] )
           Inherited, see "The body" in Mail::Message::Body

       $obj->partNumberOf($part)
           Inherited, see "The body" in Mail::Message::Body

   About the payload
       Extends "About the payload" in Mail::Message::Body.

       $obj->charset()
           Inherited, see "About the payload" in Mail::Message::Body

       $obj->checked( [BOOLEAN] )
           Inherited, see "About the payload" in Mail::Message::Body

       $obj->contentId( [STRING|$field] )
           Inherited, see "About the payload" in Mail::Message::Body

       $obj->description( [STRING|$field] )
           Inherited, see "About the payload" in Mail::Message::Body

       $obj->disposition( [STRING|$field] )
           Inherited, see "About the payload" in Mail::Message::Body

       $obj->dispositionFilename( [$directory] )
           Inherited, see "About the payload" in Mail::Message::Body::Encode

       $obj->isBinary()
           Inherited, see "About the payload" in Mail::Message::Body::Encode

       $obj->isText()
           Inherited, see "About the payload" in Mail::Message::Body::Encode

       $obj->mimeType()
           Inherited, see "About the payload" in Mail::Message::Body

       $obj->nrLines()
           Inherited, see "About the payload" in Mail::Message::Body

       $obj->size()
           Inherited, see "About the payload" in Mail::Message::Body

       $obj->transferEncoding( [STRING|$field] )
           Inherited, see "About the payload" in Mail::Message::Body

       $obj->type( [STRING|$field] )
           Inherited, see "About the payload" in Mail::Message::Body

   Access to the payload
       Extends "Access to the payload" in Mail::Message::Body.

       $obj->endsOnNewline()
           Inherited, see "Access to the payload" in Mail::Message::Body

       $obj->file()
           Inherited, see "Access to the payload" in Mail::Message::Body

       $obj->forNested(CODE)
           Execute the CODE for the nested message.  This returns a new nested body object.
           Returns "undef" when the CODE returns "undef".

       $obj->lines()
           Inherited, see "Access to the payload" in Mail::Message::Body

       $obj->nested()
           Returns the Mail::Message::Part message which is enclosed within this body.

       $obj->print( [$fh] )
           Inherited, see "Access to the payload" in Mail::Message::Body

       $obj->printEscapedFrom($fh)
           Inherited, see "Access to the payload" in Mail::Message::Body

       $obj->string()
           Inherited, see "Access to the payload" in Mail::Message::Body

       $obj->stripTrailingNewline()
           Inherited, see "Access to the payload" in Mail::Message::Body

       $obj->write(%options)
           Inherited, see "Access to the payload" in Mail::Message::Body

   Internals
       Extends "Internals" in Mail::Message::Body.

       $obj->addTransferEncHandler( $name, <$class|$object> )
       Mail::Message::Body::Nested->addTransferEncHandler( $name, <$class|$object> )
           Inherited, see "Internals" in Mail::Message::Body::Encode

       $obj->contentInfoFrom($head)
           Inherited, see "Internals" in Mail::Message::Body

       $obj->contentInfoTo($head)
           Inherited, see "Internals" in Mail::Message::Body

       $obj->fileLocation( [$begin, $end] )
           Inherited, see "Internals" in Mail::Message::Body

       $obj->getTransferEncHandler($type)
           Inherited, see "Internals" in Mail::Message::Body::Encode

       $obj->isModified()
           Inherited, see "Internals" in Mail::Message::Body

       $obj->load()
           Inherited, see "Internals" in Mail::Message::Body

       $obj->modified( [BOOLEAN] )
           Inherited, see "Internals" in Mail::Message::Body

       $obj->moveLocation( [$distance] )
           Inherited, see "Internals" in Mail::Message::Body

       $obj->read( $parser, $head, $bodytype, [$chars, [$lines]] )
           Inherited, see "Internals" in Mail::Message::Body

   Error handling
       Extends "Error handling" in Mail::Message::Body.

       $obj->AUTOLOAD()
           Inherited, see "Error handling" in Mail::Message::Body

       $obj->addReport($object)
           Inherited, see "Error handling" in Mail::Reporter

       $obj->defaultTrace( [$level]|[$loglevel, $tracelevel]|[$level, $callback] )
       Mail::Message::Body::Nested->defaultTrace( [$level]|[$loglevel, $tracelevel]|[$level,
       $callback] )
           Inherited, see "Error handling" in Mail::Reporter

       $obj->errors()
           Inherited, see "Error handling" in Mail::Reporter

       $obj->log( [$level, [$strings]] )
       Mail::Message::Body::Nested->log( [$level, [$strings]] )
           Inherited, see "Error handling" in Mail::Reporter

       $obj->logPriority($level)
       Mail::Message::Body::Nested->logPriority($level)
           Inherited, see "Error handling" in Mail::Reporter

       $obj->logSettings()
           Inherited, see "Error handling" in Mail::Reporter

       $obj->notImplemented()
           Inherited, see "Error handling" in Mail::Reporter

       $obj->report( [$level] )
           Inherited, see "Error handling" in Mail::Reporter

       $obj->reportAll( [$level] )
           Inherited, see "Error handling" in Mail::Reporter

       $obj->trace( [$level] )
           Inherited, see "Error handling" in Mail::Reporter

       $obj->warnings()
           Inherited, see "Error handling" in Mail::Reporter

   Cleanup
       Extends "Cleanup" in Mail::Message::Body.

       $obj->DESTROY()
           Inherited, see "Cleanup" in Mail::Reporter

DETAILS

       Extends "DETAILS" in Mail::Message::Body.

DIAGNOSTICS

       Warning: Charset $name is not known
           The encoding or decoding of a message body encounters a character set which is not
           understood by Perl's Encode module.

       Warning: No decoder defined for transfer encoding $name.
           The data (message body) is encoded in a way which is not currently understood,
           therefore no decoding (or recoding) can take place.

       Warning: No encoder defined for transfer encoding $name.
           The data (message body) has been decoded, but the required encoding is unknown.  The
           decoded data is returned.

       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.

       Warning: Unknown line terminator $eol ignored
       Error: You cannot use foreachLine on a nested
           foreachLine() should be used on decoded message bodies only, because it would modify
           the header of the encapsulated message. which is clearly not acceptable.

SEE ALSO

       This module is part of Mail-Message distribution version 3.015, built on December 11,
       2023. Website: http://perl.overmeer.net/CPAN/

LICENSE

       Copyrights 2001-2023 by [Mark Overmeer <markov@cpan.org>]. 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/