Email::Simple::Header

Section: User Contributed Perl Documentation (3)
Updated: 2020-07-28
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NAME

Email::Simple::Header - the header of an Email::Simple message  

VERSION

version 2.216  

SYNOPSIS

  my $email = Email::Simple->new($text);

  my $header = $email->header_obj;
  print $header->as_string;

 

DESCRIPTION

This method implements the headers of an Email::Simple object. It is a very minimal interface, and is mostly for private consumption at the moment.  

METHODS

 

new

  my $header = Email::Simple::Header->new($head, \%arg);

$head is a string containing a valid email header, or a reference to such a string. If a reference is passed in, don't expect that it won't be altered.

Valid arguments are:

  crlf - the header's newline; defaults to CRLF

 

as_string

  my $string = $header->as_string(\%arg);

This returns a stringified version of the header.  

header_names

This method returns a list of the unique header names found in this header, in no particular order.  

header_raw_pairs

  my @pairs = $header->header_raw_pairs;
  my $first_name  = $pairs[0];
  my $first_value = $pairs[1];

This method returns a list of all the field/value pairs in the header, in the order that they appear in the header. (Remember: don't try assigning that to a hash. Some fields may appear more than once!)  

header_pairs

header_pairs is another name for header_raw_pairs, which was the original name for the method and which you'll see most often. In general, though, it's better to be explicit and use header_raw_pairs. (In Email::MIME, header_str_pairs exists for letting the library do the header decoding for you.)  

header_raw

  my $first_value = $header->header_raw($field);
  my $nth_value   = $header->header_raw($field, $index);
  my @all_values  = $header->header_raw($field);

This method returns the value or values of the given header field. If the named field does not appear in the header, this method returns false.  

header

This method just calls "header_raw". It's the older name for "header_raw", but it can be a problem because Email::MIME, a subclass of Email::Simple, makes "header" return the header's decoded value.  

header_raw_set

  $header->header_raw_set($field => @values);

This method updates the value of the given header. Existing headers have their values set in place. Additional headers are added at the end. If no values are given to set, the header will be removed from to the message entirely.  

header_set

header_set is another name for header_raw_set, which was the original name for the method and which you'll see most often. In general, though, it's better to be explicit and use header_raw_set. (In Email::MIME, header_str_set exists for letting the library do the header encoding for you.)  

header_raw_prepend

  $header->header_raw_prepend($field => $value);

This method adds a new instance of the name field as the first field in the header.  

crlf

This method returns the newline string used in the header.  

AUTHORS

Simon Cozens
Casey West
Ricardo SIGNES
 

COPYRIGHT AND LICENSE

This software is copyright (c) 2003 by Simon Cozens.

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


 

Index

NAME
VERSION
SYNOPSIS
DESCRIPTION
METHODS
new
as_string
header_names
header_raw_pairs
header_pairs
header_raw
header
header_raw_set
header_set
header_raw_prepend
crlf
AUTHORS
COPYRIGHT AND LICENSE