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Top Forums Shell Programming and Scripting Communicating with ethernet to serial LED sign - is this feasible? Post 303042865 by windswept321 on Wednesday 8th of January 2020 05:42:35 PM
Old 01-08-2020
This is the hardware. It loops through the same messages shown on the signs on the table in the bottom photograph.

Communicating with ethernet to serial LED sign - is this feasible?-img_08432png
 

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Mail::Message::Dummy(3pm)				User Contributed Perl Documentation				 Mail::Message::Dummy(3pm)

NAME
Mail::Message::Dummy - a placeholder for a missing messages INHERITANCE
Mail::Message::Dummy is a Mail::Message is a Mail::Reporter DESCRIPTION
Dummy messages are used by modules which maintain ordered lists of messages, usually based on message-id. A good example is Mail::Box::Thread::Manager, which detects related messages by scanning the known message headers for references to other messages. As long as the referenced messages are not found inside the mailbox, their place is occupied by a dummy. Be careful when using modules which may create dummies. Before trying to access the header or body use isDummy() to check if the message is a dummy message. METHODS
Constructors $obj->clone(OPTIONS) See "Constructors" in Mail::Message Mail::Message::Dummy->new(MESSAGE-ID, OPTIONS) Create a new dummy message to occupy the space for a real message with the specified MESSAGE-ID. -Option --Defined in --Default body Mail::Message <not used> body_type Mail::Message Mail::Message::Body::Lines deleted Mail::Message <false> field_type Mail::Message <not used> head Mail::Message <not used> head_type Mail::Message <not used> labels Mail::Message {} log Mail::Reporter 'WARNINGS' messageId Mail::Message <required> modified Mail::Message <always false> trace Mail::Reporter 'WARNINGS' trusted Mail::Message <always true> body => OBJECT body_type => CLASS deleted => BOOLEAN field_type => CLASS head => OBJECT head_type => CLASS labels => ARRAY|HASH log => LEVEL messageId => STRING modified => BOOLEAN trace => LEVEL trusted => BOOLEAN example: my $message = Mail::Message::Dummy->new($msgid); if($message->isDummy) {...} Constructing a message $obj->bounce([RG-OBJECT|OPTIONS]) See "Constructing a message" in Mail::Message::Construct::Bounce Mail::Message::Dummy->build([MESSAGE|PART|BODY], CONTENT) See "Constructing a message" in Mail::Message::Construct::Build Mail::Message::Dummy->buildFromBody(BODY, [HEAD], HEADERS) See "Constructing a message" in Mail::Message::Construct::Build $obj->forward(OPTIONS) See "Constructing a message" in Mail::Message::Construct::Forward $obj->forwardAttach(OPTIONS) See "Constructing a message" in Mail::Message::Construct::Forward $obj->forwardEncapsulate(OPTIONS) See "Constructing a message" in Mail::Message::Construct::Forward $obj->forwardInline(OPTIONS) See "Constructing a message" in Mail::Message::Construct::Forward $obj->forwardNo(OPTIONS) See "Constructing a message" in Mail::Message::Construct::Forward $obj->forwardPostlude() See "Constructing a message" in Mail::Message::Construct::Forward $obj->forwardPrelude() See "Constructing a message" in Mail::Message::Construct::Forward $obj->forwardSubject(STRING) See "Constructing a message" in Mail::Message::Construct::Forward Mail::Message::Dummy->read(FILEHANDLE|SCALAR|REF-SCALAR|ARRAY-OF-LINES, OPTIONS) See "Constructing a message" in Mail::Message::Construct::Read $obj->rebuild(OPTIONS) See "Constructing a message" in Mail::Message::Construct::Rebuild $obj->reply(OPTIONS) See "Constructing a message" in Mail::Message::Construct::Reply $obj->replyPrelude([STRING|FIELD|ADDRESS|ARRAY-OF-THINGS]) See "Constructing a message" in Mail::Message::Construct::Reply $obj->replySubject(STRING) Mail::Message::Dummy->replySubject(STRING) See "Constructing a message" in Mail::Message::Construct::Reply The message $obj->container() See "The message" in Mail::Message $obj->isDummy() See "The message" in Mail::Message $obj->isPart() See "The message" in Mail::Message $obj->messageId() See "The message" in Mail::Message $obj->print([FILEHANDLE]) See "The message" in Mail::Message $obj->send([MAILER], OPTIONS) See "The message" in Mail::Message $obj->size() See "The message" in Mail::Message $obj->toplevel() See "The message" in Mail::Message $obj->write([FILEHANDLE]) See "The message" in Mail::Message The header $obj->bcc() See "The header" in Mail::Message $obj->cc() See "The header" in Mail::Message $obj->date() See "The header" in Mail::Message $obj->destinations() See "The header" in Mail::Message $obj->from() See "The header" in Mail::Message $obj->get(FIELDNAME) See "The header" in Mail::Message $obj->guessTimestamp() See "The header" in Mail::Message $obj->head(...) $obj->nrLines() See "The header" in Mail::Message $obj->sender() See "The header" in Mail::Message $obj->study(FIELDNAME) See "The header" in Mail::Message $obj->subject() See "The header" in Mail::Message $obj->timestamp() See "The header" in Mail::Message $obj->to() See "The header" in Mail::Message The body $obj->body([BODY]) See "The body" in Mail::Message $obj->contentType() See "The body" in Mail::Message $obj->decoded(OPTIONS) See "The body" in Mail::Message $obj->encode(OPTIONS) See "The body" in Mail::Message $obj->isMultipart() See "The body" in Mail::Message $obj->isNested() See "The body" in Mail::Message $obj->parts(['ALL'|'ACTIVE'|'DELETED'|'RECURSE'|FILTER]) See "The body" in Mail::Message Flags $obj->delete() See "Flags" in Mail::Message $obj->deleted([BOOLEAN]) See "Flags" in Mail::Message $obj->isDeleted() See "Flags" in Mail::Message $obj->isModified() See "Flags" in Mail::Message $obj->label(LABEL|PAIRS) See "Flags" in Mail::Message $obj->labels() See "Flags" in Mail::Message $obj->labelsToStatus() See "Flags" in Mail::Message $obj->modified([BOOLEAN]) See "Flags" in Mail::Message $obj->statusToLabels() See "Flags" in Mail::Message The whole message as text $obj->file() See "The whole message as text" in Mail::Message::Construct::Text $obj->lines() See "The whole message as text" in Mail::Message::Construct::Text $obj->printStructure([FILEHANDLE|undef],[INDENT]) See "The whole message as text" in Mail::Message::Construct::Text $obj->string() See "The whole message as text" in Mail::Message::Construct::Text Internals $obj->clonedFrom() See "Internals" in Mail::Message Mail::Message::Dummy->coerce(MESSAGE, OPTIONS) See "Internals" in Mail::Message $obj->isDelayed() See "Internals" in Mail::Message $obj->readBody(PARSER, HEAD [, BODYTYPE]) See "Internals" in Mail::Message $obj->readFromParser(PARSER, [BODYTYPE]) See "Internals" in Mail::Message $obj->readHead(PARSER [,CLASS]) See "Internals" in Mail::Message $obj->recursiveRebuildPart(PART, OPTIONS) See "Internals" in Mail::Message::Construct::Rebuild $obj->storeBody(BODY) See "Internals" in Mail::Message $obj->takeMessageId([STRING]) See "Internals" in Mail::Message Error handling $obj->AUTOLOAD() See "METHODS" in Mail::Message::Construct $obj->addReport(OBJECT) See "Error handling" in Mail::Reporter $obj->defaultTrace([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK]) Mail::Message::Dummy->defaultTrace([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK]) See "Error handling" in Mail::Reporter $obj->errors() See "Error handling" in Mail::Reporter $obj->log([LEVEL [,STRINGS]]) Mail::Message::Dummy->log([LEVEL [,STRINGS]]) See "Error handling" in Mail::Reporter $obj->logPriority(LEVEL) Mail::Message::Dummy->logPriority(LEVEL) See "Error handling" in Mail::Reporter $obj->logSettings() See "Error handling" in Mail::Reporter $obj->notImplemented() See "Error handling" in Mail::Reporter $obj->report([LEVEL]) See "Error handling" in Mail::Reporter $obj->reportAll([LEVEL]) See "Error handling" in Mail::Reporter $obj->shortSize([VALUE]) Mail::Message::Dummy->shortSize([VALUE]) See "Error handling" in Mail::Message $obj->shortString() See "Error handling" in Mail::Message $obj->trace([LEVEL]) See "Error handling" in Mail::Reporter $obj->warnings() See "Error handling" in Mail::Reporter Cleanup $obj->DESTROY() See "Cleanup" in Mail::Message $obj->destruct() See "Cleanup" in Mail::Message $obj->inGlobalDestruction() See "Cleanup" in Mail::Reporter DIAGNOSTICS
Error: Cannot coerce a $class object into a $class object Error: Cannot include forward source as $include. Unknown alternative for the forward(include). Valid choices are "NO", "INLINE", "ATTACH", and "ENCAPSULATE". Error: Cannot include reply source as $include. Unknown alternative for the "include" option of reply(). Valid choices are "NO", "INLINE", and "ATTACH". Error: Message-Id is required for a dummy. A dummy message occupies the place for a real message. When a dummy is created, the id of the message which place it is holding must be known. Error: Method bounce requires To, Cc, or Bcc The message bounce() method forwards a received message off to someone else without modification; you must specified it's new destination. If you have the urge not to specify any destination, you probably are looking for reply(). When you wish to modify the content, use forward(). Error: Method forwardAttach requires a preamble Error: Method forwardEncapsulate requires a preamble Error: No address to create forwarded to. If a forward message is created, a destination address must be specified. Error: No default mailer found to send message. The message send() mechanism had not enough information to automatically find a mail transfer agent to sent this message. Specify a mailer explicitly using the "via" options. Error: No rebuild rule $name defined. Error: Only build() Mail::Message's; they are not in a folder yet You may wish to construct a message to be stored in a some kind of folder, but you need to do that in two steps. First, create a normal Mail::Message, and then add it to the folder. During this Mail::Box::addMessage() process, the message will get coerce()-d into the right message type, adding storage information and the like. 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. Error: You cannot take the head/body of a dummy message Dummy messages are place-holders in message threads: the thread detected the existence of the message, because it found the message-id in a Reply-To or References field, however it did not find the header and body of the message yet. Use isDummy() to check whether the thread node returned a dummy or not. Error: coercion starts with some object SEE ALSO
This module is part of Mail-Box distribution version 2.105, built on May 07, 2012. Website: http://perl.overmeer.net/mailbox/ LICENSE
Copyrights 2001-2012 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 v5.14.2 2012-05-07 Mail::Message::Dummy(3pm)
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