# Mail::Message::Field::Unstructured - smart unstructured field - perldoc - [phpMan]

## NAME
    [Mail::Message::Field::Unstructured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AUnstructured/markdown) - smart unstructured field

## INHERITANCE
     [Mail::Message::Field::Unstructured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AUnstructured/markdown)
       is a [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)
       is a [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)
       is a [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

## SYNOPSIS
     my $f = [Mail::Message::Field::Unstructured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AUnstructured/markdown)->new('Comments', 'hi!');

## DESCRIPTION
    Unstructured fields do contain information which is not restricted in any way. RFC2822 defines
    some unstructured fields, but by default all unknown fields are unstructured as well. Things
    like attributes and comments have no meaning for unstructured fields, but encoding does.

    Extends "DESCRIPTION" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown).

## OVERLOADED
    Extends "OVERLOADED" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown).

    overload: ""
        Inherited, see "OVERLOADED" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    overload: 0+
        Inherited, see "OVERLOADED" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    overload: <=>
        Inherited, see "OVERLOADED" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    overload: bool
        Inherited, see "OVERLOADED" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    overload: cmp
        Inherited, see "OVERLOADED" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    overload: stringification
        Inherited, see "OVERLOADED" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

## METHODS
    Extends "METHODS" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown).

### Constructors
    Extends "Constructors" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown).

    $obj->clone()
        Inherited, see "Constructors" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    [Mail::Message::Field::Unstructured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AUnstructured/markdown)->from($field, %options)
        Inherited, see "Constructors" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    [Mail::Message::Field::Unstructured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AUnstructured/markdown)->new($data)
        When the $data is specified as single line, the content part is considered to be correcly
        (character) encoded and escaped. Typically, it is a line as read from file. The folding of
        the line is kept as is.

        In case more than one argument is provided, the second is considered the BODY. Attributes
        and other special things are not defined for unstructured fields, and therefore not valid
        options. The BODY can be a single string, a single OBJECT, or an array of OBJECTS. The
        objects are stringified (into a comma separated list). Each BODY element is interpreted with
        the specified encoding.

        When the BODY is empty, the construction of the object fails: "undef" is returned.

         -Option  --Defined in                --Default
          charset   [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)  undef
          encoding  [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)  'q'
          force     [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)  false
          language  [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)  undef
          log       [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)              'WARNINGS'
          trace     [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)              'WARNINGS'

        charset => STRING
        encoding => 'q'|'Q'|'b'|'B'
        force => BOOLEAN
        language => STRING
        log => LEVEL
        trace => LEVEL

        example:

         my $s = [Mail::Message::Field::Unstructured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AUnstructured/markdown)->new('Comment', 'Hi!');

         # Use autodetect
         my $s = [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)->new('Comment', 'Hi!');
         my $s = [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)->new('Comment: Hi!');

### The field
    Extends "The field" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown).

    $obj->isStructured()
    [Mail::Message::Field::Unstructured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AUnstructured/markdown)->isStructured()
        Inherited, see "The field" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->length()
        Inherited, see "The field" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->nrLines()
        Inherited, see "The field" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->print( [$fh] )
        Inherited, see "The field" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->size()
        Inherited, see "The field" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->string( [$wrap] )
        Inherited, see "The field" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->toDisclose()
        Inherited, see "The field" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

### Access to the name
    Extends "Access to the name" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown).

    $obj->Name()
        Inherited, see "Access to the name" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->name()
        Inherited, see "Access to the name" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->wellformedName( [STRING] )
        Inherited, see "Access to the name" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

### Access to the body
    Extends "Access to the body" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown).

    $obj->body()
        Inherited, see "Access to the body" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->decodedBody(%options)
        Inherited, see "Access to the body" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->folded()
        Inherited, see "Access to the body" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->foldedBody( [$body] )
        Inherited, see "Access to the body" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->stripCFWS( [STRING] )
    [Mail::Message::Field::Unstructured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AUnstructured/markdown)->stripCFWS( [STRING] )
        Inherited, see "Access to the body" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->unfoldedBody( [$body, [$wrap]] )
        Inherited, see "Access to the body" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

### Access to the content
    Extends "Access to the content" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown).

    $obj->addresses()
        Inherited, see "Access to the content" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->attribute( $name, [$value] )
        Inherited, see "Access to the content" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->attributes()
        Inherited, see "Access to the content" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->beautify()
        Inherited, see "Access to the content" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->comment( [STRING] )
        Inherited, see "Access to the content" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->createComment(STRING, %options)
    [Mail::Message::Field::Unstructured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AUnstructured/markdown)->createComment(STRING, %options)
        Inherited, see "Access to the content" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->createPhrase(STRING, %options)
    [Mail::Message::Field::Unstructured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AUnstructured/markdown)->createPhrase(STRING, %options)
        Inherited, see "Access to the content" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->study()
        Inherited, see "Access to the content" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->toDate( [$time] )
    [Mail::Message::Field::Unstructured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AUnstructured/markdown)->toDate( [$time] )
        Inherited, see "Access to the content" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->toInt()
        Inherited, see "Access to the content" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

### Other methods
    Extends "Other methods" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown).

    $obj->dateToTimestamp(STRING)
    [Mail::Message::Field::Unstructured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AUnstructured/markdown)->dateToTimestamp(STRING)
        Inherited, see "Other methods" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

### Internals
    Extends "Internals" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown).

    $obj->consume( $line | <$name,<$body|$objects>> )
        Inherited, see "Internals" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->decode(STRING, %options)
    [Mail::Message::Field::Unstructured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AUnstructured/markdown)->decode(STRING, %options)
        Inherited, see "Internals" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->defaultWrapLength( [$length] )
        Inherited, see "Internals" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->encode(STRING, %options)
        Inherited, see "Internals" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->fold( $name, $body, [$maxchars] )
    [Mail::Message::Field::Unstructured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AUnstructured/markdown)->fold( $name, $body, [$maxchars] )
        Inherited, see "Internals" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->setWrapLength( [$length] )
        Inherited, see "Internals" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->stringifyData(STRING|ARRAY|$objects)
        Inherited, see "Internals" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->unfold(STRING)
        Inherited, see "Internals" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

### Parsing
    Extends "Parsing" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown).

    $obj->consumeComment(STRING)
    [Mail::Message::Field::Unstructured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AUnstructured/markdown)->consumeComment(STRING)
        Inherited, see "Parsing" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->consumeDotAtom(STRING)
        Inherited, see "Parsing" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->consumePhrase(STRING)
    [Mail::Message::Field::Unstructured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AUnstructured/markdown)->consumePhrase(STRING)
        Inherited, see "Parsing" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->parse(STRING)
        Inherited, see "Parsing" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->produceBody()
        Inherited, see "Parsing" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

### Error handling
    Extends "Error handling" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown).

    $obj->AUTOLOAD()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->addReport($object)
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->defaultTrace( [$level]|[$loglevel, $tracelevel]|[$level, $callback] )
    [Mail::Message::Field::Unstructured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AUnstructured/markdown)->defaultTrace( [$level]|[$loglevel, $tracelevel]|[$level,
    $callback] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->errors()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->log( [$level, [$strings]] )
    [Mail::Message::Field::Unstructured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AUnstructured/markdown)->log( [$level, [$strings]] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->logPriority($level)
    [Mail::Message::Field::Unstructured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AUnstructured/markdown)->logPriority($level)
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->logSettings()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->notImplemented()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->report( [$level] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->reportAll( [$level] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->trace( [$level] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->warnings()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

### Cleanup
    Extends "Cleanup" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown).

    $obj->DESTROY()
        Inherited, see "Cleanup" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

## DETAILS
    Extends "DETAILS" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown).

## DIAGNOSTICS
    Warning: Field content is not numerical: $content
        The numeric value of a field is requested (for instance the "Lines" or "Content-Length"
        fields should be numerical), however the data contains weird characters.

    Error: Field name too long (max $length), in '$name'
        It is not specified in the RFCs how long a field name can be, but at least it should be a
        few characters shorter than the line wrap.

    Warning: Illegal character in charset '$charset'
        The field is created with an utf8 string which only contains data from the specified
        character set. However, that character set can never be a valid name because it contains
        characters which are not permitted.

    Warning: Illegal character in field name $name
        A new field is being created which does contain characters not permitted by the RFCs. Using
        this field in messages may break other e-mail clients or transfer agents, and therefore
        mutulate or extinguish your message.

    Warning: Illegal character in language '$lang'
        The field is created with data which is specified to be in a certain language, however, the
        name of the language cannot be valid: it contains characters which are not permitted by the
        RFCs.

    Warning: Illegal encoding '$encoding', used 'q'
        The RFCs only permit base64 ("b " or "B ") or quoted-printable ("q" or "Q") encoding. Other
        than these four options are illegal.

    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.

## 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/>