NAME

       Email::Address::List - RFC close address list parsing

SYNOPSIS

           use Email::Address::List;

           my $header = <<'END';
           Foo Bar <simple@example.com>, (an obsolete comment),,,
            a group:
             a . wierd . address @
             for-real .biz
            ; invalid thingy, <
            more@example.com
            >
           END

           my @list = Email::Address::List->parse($header);
           foreach my $e ( @list ) {
               if ($e->{'type'} eq 'mailbox') {
                   print "an address: ", $e->{'value'}->format ,"\n";
               }
               else {
                   print $e->{'type'}, "\n"
               }
           }

           # prints:
           # an address: "Foo Bar" <simple@example.com>
           # comment
           # group start
           # an address: a.wierd.address@forreal.biz
           # group end
           # unknown
           # an address: more@example.com

DESCRIPTION

       Parser for From, To, Cc, Bcc, Reply-To, Sender and previous prefixed with Resent- (eg
       Resent-From) headers.

REASONING

       Email::Address is good at parsing addresses out of any text even mentioned headers and
       this module is derived work from Email::Address.

       However, mentioned headers are structured and contain lists of addresses. Most of the time
       you want to parse such field from start to end keeping everything even if it's an invalid
       input.

METHODS

   parse
       A class method that takes a header value (w/o name and :) and a set of named options, for
       example:

           my @list = Email::Address::List->parse( $line, option => 1 );

       Returns list of hashes. Each hash at least has 'type' key that describes the entry. Types:

       mailbox
           A mailbox entry with Email::Address object under value key.

           If mailbox has obsolete parts then 'obsolete' is true.

           If address (not display-name/phrase or comments, but local-part@domain) contains not
           ASCII chars then 'not_ascii' is set to true. According to RFC 5322 not ASCII chars are
           not allowed within mailbox. However, there are no big problems if those are used and
           actually RFC 6532 extends a few rules from 5322 with UTF8-non-ascii. Either use the
           feature or just skip such addresses with skip_not_ascii option.

       group start
           Some headers with mailboxes may contain groupped addresses. This element is returned
           for position where group starts. Under value key you find name of the group. NOTE that
           value is not post processed at the moment, so it may contain spaces, comments, quoted
           strings and other noise. Author willing to take patches and warns that this will be
           changed at some point without additional notifications, so if you need groups info
           then you better send a patch :)

           Groups can not be nested, but one field may have multiple groups or mix of addresses
           that are in a group and not in any.

           See skip_groups option.

       group end
           Returned when a group ends.

       comment
           Obsolete syntax allows to use standalone comments between mailboxes that can not be
           addressed to any mailbox. In such situations a comment returned as an entry of this
           type. Comment itself is under value.

       unknown
           Returned if parser met something that shouldn't be there. Parser tries to recover by
           jumping over to next comma (or semicolon if inside group) that is out quoted string or
           comment, so "foo, bar, baz" string results in three unknown entries. Jumping over
           comments and quoted strings means that parser is very sensitive to unbalanced quotes
           and parens, but it's on purpose.

       It can be controlled which elements are skipped, for example:

           Email::Address::List->parse($line, skip_unknown => 1, ...);

       skip_comments
           Skips comments between mailboxes. Comments inside and next to a mailbox are not
           skipped, but returned as part of mailbox entry.

       skip_not_ascii
           Skips mailboxes where address part has not ASCII characters.

       skip_groups
           Skips group starts and end elements, however emails within groups are still returned.

       skip_unknown
           Skip anything that is not recognizable. It still tries to recover as described
           earlier.

AUTHOR

       Ruslan Zakirov <ruz@bestpractical.com>

LICENSE

       Under the same terms as Perl itself.