---
name: "Mail::Message::Body::Lines"
section: "3pm"
platform: "linux"
package: "perl-mail-message"
version: "4.05-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/Mail::Message::Body::Lines"
---

# Mail::Message::Body::Lines(3pm)

body of a Mail::Message stored as array of lines

## NAME

Mail::Message::Body::Lines - body of a Mail::Message stored as array of lines

## INHERITANCE

```
 Mail::Message::Body::Lines
   is a Mail::Message::Body
   is a Mail::Reporter
   Mail::Message::Body also extends Mail::Reporter
   is a Mail::Reporter
```

## SYNOPSIS

```
  See Mail::Message::Body
```

## DESCRIPTION

The body (content) of a message can be stored in various ways.  In this documentation you find the description of extra functionality you have when a message is stored in an array of lines.

Storing a whole message as an array of lines is useful when the data is not encoded, and you want to process it on a line-by-line basis (a common practice for inspecting message bodies).

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

## OVERLOADED

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

- overload: **'""'** stringification

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

- overload: **'=='** numerical comparison

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

- overload: **'@{}'** addressed as array

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

- overload: **bool** true/false

  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

- $class-\>**new**(%options)

  Inherited, see "Constructors" in Mail::Message::Body

  ```
   -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
    language           Mail::Message::Body  undef
    message            Mail::Message::Body  undef
    mime_type          Mail::Message::Body  'text/plain'
    modified           Mail::Message::Body  false
    transfer_encoding  Mail::Message::Body  'none'
  ```

  - based\_on =\> $body

    - charset =\> $charset\|'PERL'\|\<undef\>

    - checked =\> BOOLEAN

    - content\_id =\> STRING

    - data =\> \\@lines\|$text

    - description =\> STRING\|$field

    - disposition =\> STRING\|$field

    - eol =\> 'CR'\|'LF'\|'CRLF'\|'NATIVE'

    - file =\> $file\|$handle\|$io

    - filename =\> $file

    - language =\> STRING\|\\@lang\|$field

    - message =\> $message

    - mime\_type =\> STRING\|$field\|$mime

    - modified =\> BOOLEAN

    - transfer\_encoding =\> STRING\|$field

    ### Attributes

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

- $obj-\>**charsetDetectAlgorithm**( \[CODE\|undef\|METHOD\] )

  Inherited, see "Attributes" in Mail::Message::Body::Encode

### 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

- $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::Encode

- $obj-\>**foreachLine**(CODE)

  Inherited, see "Constructing a body" in Mail::Message::Body::Construct

- $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-\>**language**( \[@langs\|\\@langs\|$langs\|$field\] )

  Inherited, see "About the payload" in Mail::Message::Body

- $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-\>**lines**()

  Inherited, see "Access to the payload" in Mail::Message::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.

- $any-\>**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-\>**notImplemented**()

  Inherited, see "Error handling" in Mail::Reporter

- $obj-\>**notImplemented**()

  Inherited, see "Error handling" in Mail::Reporter

### Cleanup

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

- $obj-\>**DESTROY**()

  Inherited, see "Cleanup" in Mail::Reporter

- $obj-\>**DESTROY**()

  Inherited, see "Cleanup" in Mail::Reporter

## DETAILS

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

## DIAGNOSTICS

- Warning: Content-Transfer-Encoding '$te' requires explicit charset, defaulted to utf-8.

  Cast by `encode()`

- Error: cannot concatenate element $which

  Cast by `concatenate()`

- Fault: cannot open $file to write body: $!

  Cast by `write()`

- 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. Cast by `encode()`

- Error: class $package does not implement method $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. Cast by `notImplemented()`

- Error: class $package does not implement method $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. Cast by `notImplemented()`

- Fault: error closing $file after write body: $!

  Cast by `write()`

- Warning: no decoder defined for transfer encoding '$encoding'.

  The data (message body) is encoded in a way which is not currently understood, therefore no decoding (or recoding) can take place. Cast by `encode()`

- Warning: no encoder defined for transfer encoding '$encoding'.

  The data (message body) has been decoded, but the required encoding is unknown.  The decoded data is returned. Cast by `encode()`

- Error: no filename parameter for **write()** body.

  Cast by `write()`

- Error: part number needs multi-part or nested.

  Cast by `partNumberOf()`

- Fault: unable to read file $name for message body lines: $!

  A Mail::Message::Body::Lines object is to be created from a named file, but it is impossible to read that file to retrieve the lines within. Cast by `new()`

- Error: unknown line terminator '$eol'.

  Cast by `eol()`

## SEE ALSO

This module is part of Mail-Message version 4.05, built on April 10, 2026. Website: *http://perl.overmeer.net/mailbox/*

## LICENSE

For contributors see file ChangeLog.

This software is copyright (c) 2001-2026 by Mark Overmeer.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.