NAME

       Sisimai::RFC1894 - DSN field defined in RFC3464 (obsoletes RFC1894)

SYNOPSIS

           use Sisimai::RFC1894;

           print Sisimai::RFC1894->match('From: Nyaan <kijitora@libsisimai.org>'); # 0
           print Sisimai::RFC1894->match('Reporting-MTA: DNS; mx.libsisimai.org'); # 1
           print Sisimai::RFC1894->match('Final-Recipient: RFC822; cat@nyaan.jp'); # 2

           my $v = Sisimai::RFC1894->field('Reporting-MTA: DNS; mx.nyaan.jp');
           my $r = Sisimai::RFC1894->field('Status: 5.1.1');
           print Data::Dumper::Dumper $v;  # ['reporting-mta', 'dns', 'mx.nyaan.org', 'host'];
           print Data::Dumper::Dumper $r;  # ['status', '', '5.1.1', 'stat'];

DESCRIPTION

       Sisimai::RFC1894 provide methods for checking or getting DSN fields

CLASS METHODS

   "match(String)"
       "match()" checks the argument includes a field defined in RFC3464 or not

           print Sisimai::RFC1894->match('From: Nyaan <kijitora@libsisimai.org>'); # 0
           print Sisimai::RFC1894->match('Reporting-MTA: DNS; mx.libsisimai.org'); # 1
           print Sisimai::RFC1894->match('Final-Recipient: RFC822; cat@nyaan.jp'); # 2

   "field(String)"
       "field()" returns splited values as an array reference from given a string including DSN
       fields defined in RFC3464.

           my $v = Sisimai::RFC1894->field('Remote-MTA: DNS; mx.nyaan.jp');
           my $r = Sisimai::RFC1894->field('Status: 5.1.1');
           print Data::Dumper::Dumper $v;  # ['remote-mta', 'dns', 'mx.nyaan.org', 'host'];
           print Data::Dumper::Dumper $r;  # ['status', '', '5.1.1', 'stat'];

AUTHOR

       azumakuniyuki

COPYRIGHT

       Copyright (C) 2018-2021 azumakuniyuki, All rights reserved.

LICENSE

       This software is distributed under The BSD 2-Clause License.