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revision 1.18 by wakaba, Tue May 14 13:50:11 2002 UTC revision 1.34 by wakaba, Mon Jul 8 11:49:18 2002 UTC
# Line 1  Line 1 
1    
2  =head1 NAME  =head1 NAME
3    
4  Message::Header Perl module  Message::Header --- A Perl Module for Internet Message Headers
   
 =head1 DESCRIPTION  
   
 Perl module for RFC 822/2822 message C<header>.  
5    
6  =cut  =cut
7    
8  package Message::Header;  package Message::Header;
9  use strict;  use strict;
10  use vars qw($VERSION %REG);  use vars qw(%DEFAULT @ISA %REG $VERSION);
11  $VERSION = '1.00';  $VERSION=do{my @r=(q$Revision$=~/\d+/g);sprintf "%d."."%02d" x $#r,@r};
12  use Carp ();  require Message::Field::Structured;     ## This may seem silly:-)
13  use overload '@{}' => sub { shift->_delete_empty_field->{field} },  push @ISA, qw(Message::Field::Structured);
14               '""' => sub { shift->stringify },  
15               fallback => 1;  %REG = %Message::Util::REG;
16            $REG{M_field} = qr/^([^\x3A]+):$REG{FWS}([\x00-\xFF]*)$/;
17  $REG{WSP}     = qr/[\x09\x20]/;          $REG{M_fromline} = qr/^\x3E?From$REG{WSP}+([\x00-\xFF]*)$/;
18  $REG{FWS}     = qr/[\x09\x20]*/;          $REG{ftext} = qr/[\x21-\x39\x3B-\x7E]+/;        ## [2]822
19  $REG{M_field} = qr/^([^\x3A]+):$REG{FWS}([\x00-\xFF]*)$/;          $REG{NON_ftext} = qr/[^\x21-\x39\x3B-\x7E]/;    ## [2]822
20  $REG{M_fromline} = qr/^\x3E?From$REG{WSP}+([\x00-\xFF]*)$/;          $REG{NON_ftext_usefor} = qr/[^0-9A-Za-z-]/;     ## name-character
21  $REG{UNSAFE_field_name} = qr/[\x00-\x20\x3A\x7F-\xFF]/;          $REG{NON_ftext_http} = $REG{NON_http_token};
22    
23  =head2 options  ## Namespace support
24            our %NS_phname2uri;     ## PH-namespace name -> namespace URI
25  These options can be getten/set by C<get_option>/C<set_option>          our %NS_uri2package;    ## namespace URI -> Package name
26  method.          our %NS_uri2phpackage;  ## namespace URI -> PH-Package name
27            require Message::Header::Default;       ## Default namespace
28  =head3 capitalize = 0/1  
29    ## Initialize of this class -- called by constructors
30  (First character of) C<field-name> is capitalized  %DEFAULT = (
31  when C<stringify>.  (Default = 1)      -_HASH_NAME => 'value',
32        -_METHODS   => [qw|field field_exist field_type add replace count delete subject id is|],
33  =head3 fold_length = numeric value      -_MEMBERS   => [qw|value|],
34        -_VALTYPE_DEFAULT   => ':default',
35  Length of line used to fold.  (Default = 70)      -by => 'name',
36        -field_format_pattern       => '%s: %s',
37  =head3 mail_from = 0/1      -field_name_case_sensible   => 0,
38        -field_name_unsafe_rule     => 'NON_ftext',
39  Outputs "From " line (known as Un*x From, Mail-From, and so on)      -field_name_validation      => 0,
40  when C<stringify>.  (Default = 0)      -field_sort => 0,
41        -format     => 'mail-rfc2822',
42  =cut      -header_default_charset     => 'iso-2022-int-1',
43        -header_default_charset_input       => 'iso-2022-int-1',
44  =head1 CONSTRUCTORS      -linebreak_strict   => 0,
45        -line_length_max    => 60,  ## For folding
46  The following methods construct new C<Message::Header> objects:      #ns_default_phuri
47        -output_bcc => 0,
48  =over 4      -output_folding     => 1,
49        -output_mail_from   => 0,
50  =cut      #parse_all
51        -translate_underscore       => 1,
52  ## Initialize      #uri_mailto_safe
53  my %DEFAULT = (      -uri_mailto_safe_level      => 4,
54    capitalize    => 1,      -use_folding        => 1,
55    fold  => 1,      #value_type
   fold_length   => 70,  
   field_format_pattern  => '%s: %s',  
   #field_type   => {},  
   format        => 'mail-rfc2822',  
   linebreak_strict      => 0,  
   mail_from     => 0,  
   output_bcc    => 0,  
   parse_all     => 0,  
   sort  => 'none',  
   translate_underscore  => 1,  
   uri_mailto_safe       => {  
         ## 1 all (no check)     2 no trace & bcc & from  
         ## 3 no sender's info   4 (default) (currently not used)  
         ## 5 only a few  
         ':default'      => 4,  
         'cc'    => 4,  
         'bcc'   => 1,  
         'body'  => 1,  
         'comment'       => 5,  
         'content-id'    => 1,  
         'date'  => 1,  
         'from'  => 1,  
         'keywords'      => 5,  
         'list-id'       => 1,  
         'mail-from'     => 1,  
         'message-id'    => 1,  
         'received'      => 1,  
         'resent-bcc'    => 1,  
         'resent-date'   => 1,  
         'resent-from'   => 1,  
         'resent-sender' => 1,  
         'return-path'   => 1,  
         'sender'        => 1,  
         'subject'       => 5,  
         'summary'       => 5,  
         'to'    => 4,  
         'user-agent'    => 3,  
         'x-face'        => 2,  
         'x-mailer'      => 3,  
         'x-nsubject'    => 5,  
         'x-received'    => 1,  
         'x400-received' => 1,  
         },  
   uri_mailto_safe_level => 4,  
   validate      => 1,  
56  );  );
 $DEFAULT{field_type} = {  
         ':DEFAULT'      => 'Message::Field::Unstructured',  
           
         received        => 'Message::Field::Received',  
         'x-received'    => 'Message::Field::Received',  
           
         'content-type'  => 'Message::Field::ContentType',  
         p3p     => 'Message::Field::Params',  
         'auto-submitted'        => 'Message::Field::ValueParams',  
         'content-disposition'   => 'Message::Field::ValueParams',  
         link    => 'Message::Field::ValueParams',  
         archive => 'Message::Field::ValueParams',  
         'x-face-type'   => 'Message::Field::ValueParams',  
         'x-mozilla-draft-info'  => 'Message::Field::ValueParams',  
           
         subject => 'Message::Field::Subject',  
         'x-nsubject'    => 'Message::Field::Subject',  
           
         'list-software' => 'Message::Field::UA',  
         'user-agent'    => 'Message::Field::UA',  
         server  => 'Message::Field::UA',  
           
         ## A message id  
         'content-id'    => 'Message::Field::MsgID',  
         'message-id'    => 'Message::Field::MsgID',  
         'resent-message-id'     => 'Message::Field::MsgID',  
           
         ## Numeric value  
         'content-length'        => 'Message::Field::Numval',  
         lines   => 'Message::Field::Numval',  
         'max-forwards'  => 'Message::Field::Numval',  
         'mime-version'  => 'Message::Field::Numval',  
         'x-jsmail-priority'     => 'Message::Field::Numval',  
         'x-mail-count'  => 'Message::Field::Numval',  
         'x-ml-count'    => 'Message::Field::Numval',  
         'x-priority'    => 'Message::Field::Numval',  
           
         path    => 'Message::Field::Path',  
 };  
 for (qw(archive cancel-lock content-features content-md5  
   disposition-notification-options encoding  
   importance injector-info  
   pics-label posted-and-mailed precedence list-id message-type  
   original-recipient priority x-list-id  
   sensitivity status x-face x-msmail-priority xref))  
   {$DEFAULT{field_type}->{$_} = 'Message::Field::Structured'}  
         ## Not supported yet, but to be supported...  
         # x-list: unstructured, ml name  
 for (qw(abuse-reports-to apparently-to approved approved-by bcc cc complaints-to  
   delivered-to disposition-notification-to envelope-to  
   errors-to  from mail-copies-to mail-followup-to mail-reply-to  
   notice-requested-upon-delivery-to read-receipt-to register-mail-reply-requested-by  
   reply-to resent-bcc  
   resent-cc resent-to resent-from resent-sender return-path  
   return-receipt-to return-receipt-requested-to sender to x-abuse-reports-to  
   x-admin x-approved  
   x-beenthere  
   x-confirm-reading-to  
   x-complaints-to x-envelope-from x-envelope-sender  
   x-envelope-to x-ml-address x-ml-command x-ml-to x-nfrom x-nto  
   x-rcpt-to x-sender x-x-sender))  
   {$DEFAULT{field_type}->{$_} = 'Message::Field::Address'}  
 for (qw(client-date date date-received delivery-date expires  
   expire-date nntp-posting-date posted posted-date received-date  
   reply-by resent-date  
   x-originalarrivaltime x-tcup-date))  
   {$DEFAULT{field_type}->{$_} = 'Message::Field::Date'}  
 for (qw(article-updates in-reply-to  
   obsoletes references replaces see-also supersedes))  
   {$DEFAULT{field_type}->{$_} = 'Message::Field::MsgIDs'}  
 for (qw(accept accept-charset accept-encoding accept-language  
   content-language  
   content-transfer-encoding encrypted followup-to keywords  
   list-archive list-digest list-help list-owner  
   list-post list-subscribe list-unsubscribe list-url uri newsgroups  
   posted-to))  
   {$DEFAULT{field_type}->{$_} = 'Message::Field::CSV'}  
 for (qw(x-brother x-boss x-classmate x-daughter x-dearfriend x-favoritesong  
   x-friend x-me  
   x-moe x-respect  
   x-sublimate x-son x-sister x-wife))  
   {$DEFAULT{field_type}->{$_} = 'Message::Field::CSV'}  ## NOT M::F::XMOE!  
 for (qw(content-alias content-base content-location location referer  
   url x-home-page x-http_referer  
   x-info x-pgp-key x-ml-url x-uri x-url x-web))  
   {$DEFAULT{field_type}->{$_} = 'Message::Field::URI'}  
   
 my %header_goodcase = (  
         'article-i.d.'  => 'Article-I.D.',  
         'content-id'    => 'Content-ID',  
         'content-md5'   => 'Content-MD5',  
         'content-sgml-entity'   => 'Content-SGML-Entity',  
         etag    => 'ETag',  
         fax     => 'FAX',  
         'pics-label'    => 'PICS-Label',  
         'list-url'      => 'List-URL',  
         'list-id'       => 'List-ID',  
         'message-id'    => 'Message-ID',  
         'mime-version'  => 'MIME-Version',  
         'nic'   => 'NIC',  
         'nntp-posting-date'     => 'NNTP-Posting-Date',  
         'nntp-posting-host'     => 'NNTP-Posting-Host',  
         'resent-message-id'     => 'Resent-Message-ID',  
         te      => 'TE',  
         url     => 'URL',  
         'www-authenticate'      => 'WWW-Authenticate',  
         'x-dearfriend'  => 'X-DearFriend',  
         'x-mime-autoconverted'  => 'X-MIME-Autoconverted',  
         'x-nntp-posting-date'   => 'X-NNTP-Posting-Date',  
         'x-nntp-posting-host'   => 'X-NNTP-Posting-Host',  
         'x-uri' => 'X-URI',  
         'x-url' => 'X-URL',  
 );  
 $DEFAULT{capitalize} = sub {  
   my $self = shift;  
   my $name = shift;  
   if ($header_goodcase{$name}) {  
     return $header_goodcase{$name};  
   }  
   $name =~ s/(?:^|-)cgi-/uc $&/ge;  
   $name =~ s/(?:^|-)[a-z]/uc $&/ge;  
   $name;  
 };  
57    
58  ## taken from L<HTTP::Header>  ## taken from L<HTTP::Header>
59  # "Good Practice" order of HTTP message headers:  # "Good Practice" order of HTTP message headers:
# Line 257  my @header_order = qw( Line 85  my @header_order = qw(
85  );  );
86  my %header_order;  my %header_order;
87    
88    =head1 CONSTRUCTORS
89    
90    The following methods construct new C<Message::Header> objects:
91    
92    =over 4
93    
94    =cut
95    
96  sub _init ($;%) {  sub _init ($;%) {
97    my $self = shift;    my $self = shift;
98    my %options = @_;    my %options = @_;
99    $self->{field} = [];    my $DEFAULT = Message::Util::make_clone (\%DEFAULT);
100    $self->{option} = \%DEFAULT;    $self->SUPER::_init (%$DEFAULT, %options);
101      $self->{value} = [];
102      $self->_ns_load_ph ('default');
103      $self->_ns_load_ph ('x-rfc822');
104      $self->_ns_load_ph ('x-http');
105      $self->{option}->{ns_default_phuri} = $self->{ns}->{phname2uri}->{'x-rfc822'}
106        unless $self->{option}->{ns_default_phuri};
107      
108      ## For text/rfc822-headers
109      if (ref $options{entity_header}) {
110        $self->{entity_header} = $options{entity_header};
111        delete $options{entity_header};
112      }
113    my @new_fields = ();    my @new_fields = ();
114    for my $name (keys %options) {    for my $name (keys %options) {
115      if (substr ($name, 0, 1) eq '-') {      unless (substr ($name, 0, 1) eq '-') {
       $self->{option}->{substr ($name, 1)} = $options{$name};  
     } else {  
116        push @new_fields, ($name => $options{$name});        push @new_fields, ($name => $options{$name});
117      }      }
118    }    }
# Line 285  sub _init ($;%) { Line 131  sub _init ($;%) {
131  sub _init_by_format ($$\%) {  sub _init_by_format ($$\%) {
132    my $self = shift;    my $self = shift;
133    my ($format, $option) = @_;    my ($format, $option) = @_;
134    if ($format =~ /rfc822/) {    return if $format eq $option->{format};
135      $header_goodcase{bcc} = 'bcc';    if ($format =~ /http/) {
136      $header_goodcase{cc} = 'cc';      $option->{ns_default_phuri} = $self->{ns}->{phname2uri}->{'x-http'};
137      $header_goodcase{'resent-bcc'} = 'Resent-bcc';      if ($format =~ /cgi/) {
138      $header_goodcase{'resent-cc'} = 'Resent-cc';        unshift @header_order, qw(content-type location);
139    } elsif ($format =~ /cgi/) {        $option->{field_sort} = 'good-practice';
140      unshift @header_order, qw(content-type location);        $option->{use_folding} = 0;
141      $option->{sort} = 'good-practice';      } else {
142      $option->{fold} = 0;        $option->{field_sort} = 'good-practice';
143    } elsif ($format =~ /http/) {      }
144      $option->{sort} = 'good-practice';    } elsif ($format =~ /mail|news/) {    ## RFC 822
145        $option->{ns_default_phuri} = $self->{ns}->{phname2uri}->{'x-rfc822'};
146    }    }
147    if ($format =~ /uri-url-mailto/) {    if ($format =~ /uri-url-mailto/) {
148      $option->{output_bcc} = 0;      $option->{output_bcc} = 0;
     $option->{capitalize} = 0;  
149      $option->{field_format_pattern} = '%s=%s';      $option->{field_format_pattern} = '%s=%s';
150      $option->{fold} = sub {      $option->{output_folding} = sub {
151        $_[1] =~ s/([^:@+\$A-Za-z0-9\-_.!~*])/sprintf('%%%02X', ord $1)/ge;        $_[1] =~ s/([^:@+\$A-Za-z0-9\-_.!~*])/sprintf('%%%02X', ord $1)/ge;
152        $_[1];        $_[1];
153      };      };  ## Yes, this is not folding!
154    }    }
155  }  }
156    
157  =item Message::Header->new ([%initial-fields/options])  =item $msg = Message::Header->new ([%initial-fields/options])
158    
159  Constructs a new C<Message::Headers> object.  You might pass some initial  Constructs a new C<Message::Headers> object.  You might pass some initial
160  C<field-name>-C<field-body> pairs and/or options as parameters to the constructor.  C<field-name>-C<field-body> pairs and/or options as parameters to the constructor.
# Line 324  Example: Line 170  Example:
170    
171  =cut  =cut
172    
173  sub new ($;%) {  ## Inherited
   my $class = shift;  
   my $self = bless {}, $class;  
   $self->_init (@_);  
   $self;  
 }  
174    
175  =item Message::Header->parse ($header, [%initial-fields/options])  =item $msg = Message::Header->parse ($header, [%initial-fields/options])
176    
177  Parses given C<header> and constructs a new C<Message::Headers>  Parses given C<header> and constructs a new C<Message::Headers>
178  object.  You might pass some additional C<field-name>-C<field-body> pairs  object.  You might pass some additional C<field-name>-C<field-body> pairs
# Line 343  sub parse ($$;%) { Line 184  sub parse ($$;%) {
184    my $class = shift;    my $class = shift;
185    my $header = shift;    my $header = shift;
186    my $self = bless {}, $class;    my $self = bless {}, $class;
187    $self->_init (@_);    ## BUG: don't check linebreak_strict    $self->_init (@_);
188    $header =~ s/\x0D?\x0A$REG{WSP}/\x20/gos;     ## unfold    if ($self->{option}->{linebreak_strict}) {
189        $header =~ s/\x0D\x0A$REG{WSP}/\x20/gos if $self->{option}->{use_folding};
190      } else {
191        $header =~ s/\x0D?\x0A$REG{WSP}/\x20/gos if $self->{option}->{use_folding};
192      }
193      my %option = (%{ $self->{option} });
194      $option{parse_all} = 0;
195    for my $field (split /\x0D?\x0A/, $header) {    for my $field (split /\x0D?\x0A/, $header) {
196      if ($field =~ /$REG{M_fromline}/) {      if ($field =~ /$REG{M_fromline}/) {
197        my $body = $1;        my ($s,undef,$value) = $self->_value_to_arrayitem
198        $body = $self->_field_body ($body, 'mail-from')          ('mail-from' => $1, \%option);
199          if $self->{option}->{parse_all};        push @{$self->{value}}, $value if $s;
       push @{$self->{field}}, {name => 'mail-from', body => $body};  
200      } elsif ($field =~ /$REG{M_field}/) {      } elsif ($field =~ /$REG{M_field}/) {
201        my ($name, $body) = (lc $1, $2);        my ($name, $body) = ($1, $2);
       $name =~ s/$REG{WSP}+$//;  
202        $body =~ s/$REG{WSP}+$//;        $body =~ s/$REG{WSP}+$//;
203        $body = $self->_field_body ($body, $name) if $self->{option}->{parse_all};        my ($s,undef,$value) = $self->_value_to_arrayitem
204        push @{$self->{field}}, {name => $name, body => $body};          ($name => $body, \%option);
205      }        push @{$self->{value}}, $value if $s;
206        } elsif (length $field) {
207          my ($s,undef,$value) = $self->_value_to_arrayitem
208            ('x-unknown' => $field, \%option);
209          push @{$self->{value}}, $value if $s;
210        }
211      }
212      $self->_ns_associate_numerical_prefix;        ## RFC 2774 namespace
213      for (@{ $self->{value} }) {
214        no strict 'refs';
215        $_->{name}
216          = &{ ${ &_NS_uri2package ($_->{ns}).'::OPTION' }{n11n_name} }
217          ($self, &_NS_uri2package ($_->{ns}), $_->{name});
218        $_->{body} = $self->_parse_value ($_->{name} => $_->{body}, ns => $_->{ns})
219          if $self->{option}->{parse_all};
220    }    }
221    $self;    $self;
222  }  }
223    
224  =item Message::Header->parse_array (\@header, [%initial-fields/options])  =item $msg = Message::Header->parse_array (\@header, [%initial-fields/options])
225    
226  Parses given C<header> and constructs a new C<Message::Headers>  Parses given C<header> and constructs a new C<Message::Headers>
227  object.  Same as C<Message::Header-E<lt>parse> but this method  object.  Same as C<Message::Header-E<lt>parse> but this method
# Line 381  sub parse_array ($\@;%) { Line 240  sub parse_array ($\@;%) {
240    $self->_init (@_);    $self->_init (@_);
241    while (1) {    while (1) {
242      my $field = shift @$header;      my $field = shift @$header;
243      while (1) {      if ($self->{option}->{use_folding}) {
244        if ($$header[0] =~ /^$REG{WSP}/) {        while (1) {
245          $field .= shift @$header;          if ($$header[0] =~ /^$REG{WSP}/) {
246        } else {last}            $field .= shift @$header;
247            } else {last}
248          }
249      }      }
250      if ($self->{option}->{linebreak_strict}) {      if ($self->{option}->{linebreak_strict}) {
251        $field =~ s/\x0D\x0A//g;        $field =~ s/\x0D\x0A//g;
252      } else {      } else {
253        $field =~ tr/\x0D\x0A//d;        $field =~ tr/\x0D\x0A//d;
254      }      }
255        local $self->{option}->{parse} = $self->{option}->{parse_all};
256      if ($field =~ /$REG{M_fromline}/) {      if ($field =~ /$REG{M_fromline}/) {
257        my $body = $1;        my ($s,undef,$value) = $self->_value_to_arrayitem
258        $body = $self->_field_body ($body, 'mail-from')          ('mail-from' => $1, $self->{option});
259          if $self->{option}->{parse_all};        push @{$self->{value}}, $value if $s;
       push @{$self->{field}}, {name => 'mail-from', body => $body};  
260      } elsif ($field =~ /$REG{M_field}/) {      } elsif ($field =~ /$REG{M_field}/) {
261        my ($name, $body) = (lc $1, $2);        my ($name, $body) = ($self->_n11n_field_name ($1), $2);
       $name =~ s/$REG{WSP}+$//;  
262        $body =~ s/$REG{WSP}+$//;        $body =~ s/$REG{WSP}+$//;
263        $body = $self->_field_body ($body, $name) if $self->{option}->{parse_all};        my ($s,undef,$value) = $self->_value_to_arrayitem
264        push @{$self->{field}}, {name => $name, body => $body};          ($name => $body, $self->{option});
265          push @{$self->{value}}, $value if $s;
266        } elsif (length $field) {
267          my ($s,undef,$value) = $self->_value_to_arrayitem
268            ('x-unknown' => $field, $self->{option});
269          push @{$self->{value}}, $value if $s;
270      }      }
271      last if $#$header < 0;      last if $#$header < 0;
272    }    }
273      $self->_ns_associate_numerical_prefix;        ## RFC 2774 namespace
274    $self;    $self;
275  }  }
276    
# Line 421  context, only first one is returned.) Line 287  context, only first one is returned.)
287    
288  =cut  =cut
289    
290  sub field ($$) {  sub field ($@) {shift->SUPER::item (@_)}
291    sub field_exist ($@) {shift->SUPER::item_exist (@_)}
292    
293    ## item-by?, \$checked-item, {item-key => 1}, \%option
294    sub _item_match ($$\$\%\%) {
295    my $self = shift;    my $self = shift;
296    my $name = lc shift;    my ($by, $i, $list, $option) = @_;
297    my @ret;    return 0 unless ref $$i;  ## Already removed
298    for my $field (@{$self->{field}}) {    if ($by eq 'name') {
299      if ($field->{name} eq $name) {      my %o = %$option; #$o{parse} = 0;
300        unless (wantarray) {      my %l;
301          $field->{body} = $self->_field_body ($field->{body}, $name);      for (keys %$list) {
302          return $field->{body};        my ($s, undef, $v) = $self->_value_to_arrayitem ($_, '', \%o);
303          if ($s) {
304            $l{$v->{name} . ':' . ( $option->{ns} || $v->{ns} ) } = 1;
305        } else {        } else {
306          $field->{body} = $self->_field_body ($field->{body}, $name);          $l{$v->{name} .':'. ( $option->{ns} || $self->{option}->{ns_default_phuri} ) } = 1;
307          push @ret, $field->{body};        }
308        }
309        return 1 if $l{$$i->{name} . ':' . $$i->{ns}};
310      } elsif ($by eq 'ns') {
311        return 1 if $list->{ $$i->{ns} };
312      } elsif ($by eq 'http-ns-define') {
313        if ($$i->{ns} eq $self->{ns}->{phname2uri}->{'x-http'}
314         || $$i->{ns} eq $self->{ns}->{phname2uri}->{'x-http-c'}) {
315          my $n = $$i->{name};
316          if ($n eq 'opt' || $n eq 'c-opt' || $n eq 'man' || $n eq 'c-man') {
317            $option->{parse} = 0;
318            $$i->{body} = $self->_parse_value ($$i->{name} => $$i->{body}, ns => $$i->{ns});
319            for my $j (0..$$i->{body}->count-1) {
320              return 1 if $list->{ ($$i->{body}->value ($j))[0]->value };
321            }
322        }        }
323      }      }
324    }    }
325    if ($#ret < 0) {    0;
     return $self->add ($name);  
   }  
   @ret;  
326  }  }
327    *_delete_match = \&_item_match;
328    
329  sub field_exist ($$) {  ## Returns returned item value    \$item-value, \%option
330    my $self = shift;  sub _item_return_value ($\$\%) {
331    my $name = lc shift;    if (ref ${$_[1]}->{body}) {
332    my @ret;      ${$_[1]}->{body};
333    for my $field (@{$self->{field}}) {    } else {
334      return 1 if ($field->{name} eq $name);      ${$_[1]}->{body} = $_[0]->_parse_value (${$_[1]}->{name} => ${$_[1]}->{body},
335          ns => ${$_[1]}->{ns});
336        ${$_[1]}->{body};
337      }
338    }
339    *_add_return_value = \&_item_return_value;
340    *_replace_return_value = \&_item_return_value;
341    
342    ## Returns returned (new created) item value    $name, \%option
343    sub _item_new_value ($$\%) {
344      my $self = shift;
345      my ($name, $option) = @_;
346      if ($option->{by} eq 'http-ns-define') {
347        my $value = $self->_parse_value (opt => '', ns => $self->{ns}->{phname2uri}->{'x-http'});
348        ($value->value (0))[0]->value ($name);
349        {name => 'opt', body => $value, ns => $self->{ns}->{phname2uri}->{'x-http'}};
350      } else {
351        my ($s,undef,$value) = $self->_value_to_arrayitem
352            ($name => '', $option);
353        $s? $value: undef;
354    }    }
   0;  
355  }  }
356    
 =head2 $self->field_name ($index)  
357    
 Returns C<field-name> of $index'th C<field>.  
358    
359  =head2 $self->field_body ($index)  ## $self->_parse_value ($type, $value, %options);
360    sub _parse_value ($$$;%) {
361  Returns C<field-body> of $index'th C<field>.    my $self = shift;
362      my $name = shift ;#|| $self->{option}->{_VALTYPE_DEFAULT};
363  =cut    my $value = shift;  return $value if ref $value;
364      my %option = @_;
365  sub field_name ($$) {    my $vtype; { no strict 'refs';
366    my $self = shift;      my $vt = ${&_NS_uri2package ($option{ns}).'::OPTION'}{value_type};
367    $self->{field}->[shift]->{name};      if (ref $vt) {
368  }        $vtype = $vt->{$name} || $vt->{$self->{option}->{_VALTYPE_DEFAULT}};
369  sub field_body ($$) {      }
370    my $self = shift;      ## For compatiblity.
371    my $i = shift;      unless (ref $vtype) { $vtype = $self->{option}->{value_type}->{$name}
372    $self->{field}->[$i]->{body}        || $self->{option}->{value_type}->{$self->{option}->{_VALTYPE_DEFAULT}} }
373     = $self->_field_body ($self->{field}->[$i]->{body}, $self->{field}->[$i]->{name});    }
374    $self->{field}->[$i]->{body};    my $vpackage = $vtype->[0];
375      my %vopt = %{$vtype->[1]} if ref $vtype->[1];
376      if ($vpackage eq ':none:') {
377        return $value;
378      } elsif (defined $value) {
379        eval "require $vpackage" or Carp::croak qq{<parse>: $vpackage: Can't load package: $@};
380        return $vpackage->parse ($value,
381          -format   => $self->{option}->{format},
382          -field_ns => $option{ns},
383          -field_name       => $name,
384        -header_default_charset     => $self->{option}->{header_default_charset},
385        -header_default_charset_input       => $self->{option}->{header_default_charset_input},
386          -parse_all        => $self->{option}->{parse_all},
387        %vopt);
388      } else {
389        eval "require $vpackage" or Carp::croak qq{<parse>: $vpackage: Can't load package: $@};
390        return $vpackage->new (
391          -format   => $self->{option}->{format},
392          -field_ns => $option{ns},
393          -field_name       => $name,
394        -header_default_charset     => $self->{option}->{header_default_charset},
395        -header_default_charset_input       => $self->{option}->{header_default_charset_input},
396          -parse_all        => $self->{option}->{parse_all},
397        %vopt);
398      }
399  }  }
400    
401  sub _field_body ($$$) {  ## Defined for text/rfc822-headers
402    my $self = shift;  sub entity_header ($;$) {
403    my ($body, $name) = @_;    my $self = shift;
404    unless (ref $body) {    my $new_header = shift;
405      my $type = $self->{option}->{field_type}->{$name}    if (ref $new_header) {
406              || $self->{option}->{field_type}->{':DEFAULT'};      $self->{header} = $new_header;
     eval "require $type" or Carp::croak ("_field_body: $type: $@");  
     unless ($body) {  
       $body = $type->new (-field_name => $name,  
         -format => $self->{option}->{format},  
         -parse_all => $self->{option}->{parse_all},  
         field_name => $name, format => $self->{option}->{format});  
     } else {  
       $body = $type->parse ($body, -field_name => $name,  
         -format => $self->{option}->{format},  
         -parse_all => $self->{option}->{parse_all},  
          field_name => $name,format => $self->{option}->{format});  
     }  
407    }    }
408    $body;    $self->{header};
409  }  }
410    
411  =head2 $self->field_name_list ()  =head2 $self->field_name_list ()
# Line 506  returns ALL names.) Line 418  returns ALL names.)
418    
419  sub field_name_list ($) {  sub field_name_list ($) {
420    my $self = shift;    my $self = shift;
421    $self->_delete_empty_field ();    $self->_delete_empty ();
422    map {$_->{name}} @{$self->{field}};    map { $_->{name} . ':' . $_->{ns} } @{$self->{value}};
423    }
424    
425    sub namespace_ph_default ($;$) {
426      my $self = shift;
427      if (defined $_[0]) {
428        no strict 'refs';
429        $self->{option}->{ns_default_phuri} = $_[0];
430        $self->_ns_load_ph (${&_NS_uri2package ($self->{option}->{ns_default_phuri}).'::OPTION'}{namespace_phname});
431      }
432      $self->{option}->{ns_default_phuri};
433  }  }
434    
435  =item $hdr->add ($field-name, $field-body, [$name, $body, ...])  =item $hdr->add ($field-name, $field-body, [$name, $body, ...])
# Line 533  C<-validate>: Checks whether C<field-nam Line 455  C<-validate>: Checks whether C<field-nam
455    
456  =cut  =cut
457    
458  sub add ($%) {  ## [Name: Value] pair -> internal array item
459    my $self = shift;  ## $self->_value_to_arrayitem ($name => $value, {%options})
460    my %fields = @_;  ## or
461    my %option = %{$self->{option}};  ## $self->_value_to_arrayitem ($name => [$value, %value_options], {%options})
462    $option{parse} = 1 if defined wantarray;  ##
463    for (grep {/^-/} keys %fields) {$option{substr ($_, 1)} = $fields{$_}}  ## Return: ((1 = success / 0 = failue), $full_name, $arrayitem)
464    my $body;  sub _value_to_arrayitem ($$$\%) {
465    for (grep {/^[^-]/} keys %fields) {    my $self = shift;
466      my $name = lc $_;  $body = $fields{$_};    my ($name, $value, $option) = @_;
467      $name =~ tr/_/-/ if $option{translate_underscore};    my $value_option = {};
468      Carp::croak "add: $name: invalid field-name"    if (ref $value eq 'ARRAY') {
469        if $option{validate} && $name =~ /$REG{UNSAFE_field_name}/;      ($value, %$value_option) = @$value;
470      $body = $self->_field_body ($body, $name) if $option{parse};    }
471      if ($option{prepend}) {    my $default_ns = $option->{ns_default_phuri};
472        unshift @{$self->{field}}, {name => $name, body => $body};    my $nsuri = $default_ns;
473      } else {    $name =~ s/^$REG{WSP}+//;  $name =~ s/$REG{WSP}+$//;
474        push @{$self->{field}}, {name => $name, body => $body};    
475      no strict 'refs';
476      if ($value_option->{ns}) {
477        $nsuri = $value_option->{ns};
478      } elsif ($option->{ns}) {
479        $nsuri = $option->{ns};
480      } elsif (($default_ns eq $self->{ns}->{uri2phname}->{'x-http'}
481           && $name =~ s/^([0-9]+)-//)
482        || ($name =~ s/^x-http-([0-9]+)-//i)) {     ## Numric namespace prefix, RFC 2774
483        my $prefix = 0+$1;
484        $nsuri = $self->{ns}->{number2uri}->{ $prefix };
485        unless ($nsuri) {
486          $self->{ns}->{number2uri}->{ $prefix } = 'urn:x-suika-fam-cx:msgpm:header:x-temp:'.$prefix;
487          $nsuri = $self->{ns}->{number2uri}->{ $prefix };
488        }
489      } elsif (
490        ${ &_NS_uri2package ($default_ns).'::OPTION' }{use_ph_namespace}
491        && (
492           ($name =~ s/^([Xx]-[A-Za-z0-9]+|[A-Za-z]*[A-WYZa-wyz0-9][A-Za-z0-9]*)-
493                        ([Xx]-[A-Za-z0-9]+|[A-Za-z0-9]*[A-WYZa-wyz0-9][A-Za-z0-9]*)-//x)
494         || $name =~ s/^([Xx]-[A-Za-z0-9]+|[A-Za-z0-9]*[A-WYZa-wyz0-9][A-Za-z0-9]*)-//
495        )) {
496        my ($prefix1, $prefix2) = ($1, $2);
497        my $original_prefix = $&;  my $one_prefix = 0;
498        unless ($prefix2) {
499          $prefix2 = $prefix1;
500          $prefix1 = $self->{ns}->{uri2phname}->{ $default_ns };
501          $one_prefix = 1;
502        }
503        my $prefix
504          = &{ ${ &_NS_uri2package ($nsuri).'::OPTION' }{n11n_prefix} }
505            ($self, &_NS_uri2package ($nsuri), $prefix1.'-'.$prefix2);
506        $self->_ns_load_ph ($prefix);
507        $nsuri = $self->{ns}->{phname2uri}->{ $prefix };
508        unless ($nsuri) {
509          $nsuri = $default_ns;
510          $prefix
511            = &{ ${ &_NS_uri2package ($nsuri).'::OPTION' }{n11n_prefix} }
512              ($self, &_NS_uri2package ($nsuri), $one_prefix? $prefix2: $prefix1);
513          $self->_ns_load_ph ($prefix);
514          $nsuri = $self->{ns}->{phname2uri}->{ $prefix };
515          if ($nsuri) {
516            $name = $prefix2 . '-' . $name unless $one_prefix;
517          } else {
518            $name = $original_prefix . $name;
519            $nsuri = $default_ns;
520          }
521      }      }
522    }    }
523    $body if $option{parse};    $name
524        = &{ ${ &_NS_uri2package ($nsuri).'::OPTION' }{n11n_name} }
525          ($self, &_NS_uri2package ($nsuri), $name);
526      Carp::croak "$name: invalid field-name"
527        if $option->{field_name_validation}
528          && $name =~ /$REG{ $option->{field_name_unsafe_rule} }/;
529      $value = $self->_parse_value ($name => $value, ns => $nsuri)
530        if $option->{parse} || $option->{parse_all};
531      $option->{parse} = 0;
532      (1, $name.':'.$nsuri => {name => $name, body => $value, ns => $nsuri});
533  }  }
534    *_add_hash_check = \&_value_to_arrayitem;
535    *_replace_hash_check = \&_value_to_arrayitem;
536    
537  =head2 $self->relace ($field_name, $field_body)  =head2 $self->relace ($field_name, $field_body)
538    
# Line 565  first one is used and the others are not Line 544  first one is used and the others are not
544    
545  =cut  =cut
546    
547  sub replace ($%) {  sub _replace_hash_shift ($\%$\%) {
548    my $self = shift;    shift; my $r = shift;  my $n = $_[0]->{name} . ':' . $_[0]->{ns};
549    my %params = @_;    if ($$r{$n}) {
550    my %option = %{$self->{option}};      my $d = $$r{$n};
551    $option{parse} = defined wantarray unless defined $option{parse};      delete $$r{$n};
552    for (grep {/^-/} keys %params) {$option{substr ($_, 1)} = $params{$_}}      return $d;
   my (%new_field);  
   for (grep {/^[^-]/} keys %params) {  
     my $name = lc $_;  
     $name =~ tr/_/-/ if $option{translate_underscore};  
     Carp::croak "replace: $name: invalid field-name"  
       if $option{validate} && $name =~ /$REG{UNSAFE_field_name}/;  
     $params{$_} = $self->_field_body ($params{$_}, $name) if $option{parse};  
     $new_field{$name} = $params{$_};  
   }  
   my $body = (%new_field)[-1];  
   for my $field (@{$self->{field}}) {  
     if (defined $new_field{$field->{name}}) {  
       $field->{body} = $new_field {$field->{name}};  
       $new_field{$field->{name}} = undef;  
     }  
553    }    }
554    for (keys %new_field) {    undef;
     push @{$self->{field}}, {name => $_, body => $new_field{$_}};  
   }  
   $body if $option{parse};  
555  }  }
556    
557  =head2 $self->delete ($field-name, [$name, ...])  =head2 $self->delete ($field-name, [$name, ...])
# Line 599  Deletes C<field> named as $field_name. Line 560  Deletes C<field> named as $field_name.
560    
561  =cut  =cut
562    
 sub delete ($@) {  
   my $self = shift;  
   my %delete;  for (@_) {$delete{lc $_} = 1}  
   for my $field (@{$self->{field}}) {  
     undef $field if $delete{$field->{name}};  
   }  
 }  
563    
564  =head2 $self->count ([$field_name])  =head2 $self->count ([$field_name])
565    
# Line 615  of fields.  (Same as $#$self+1) Line 569  of fields.  (Same as $#$self+1)
569    
570  =cut  =cut
571    
572  sub count ($;$) {  sub _count_by_name ($$\%) {
573    my $self = shift;    my $self = shift;
574    my ($name) = (lc shift);    my ($array, $option) = @_;
575    unless ($name) {    my $name = $self->_n11n_field_name ($$option{-name});
576      $self->_delete_empty_field ();    my @a = grep {$_->{name} eq $name} @{$self->{$array}};
577      return $#{$self->{field}}+1;    $#a + 1;
578    }  }
579    my $count = 0;  
580    for my $field (@{$self->{field}}) {  ## Delete empty items
581      if ($field->{name} eq $name) {  sub _delete_empty ($) {
582        $count++;    my $self = shift;
583      }    my $array = $self->{option}->{_HASH_NAME};
584    }    $self->{$array} = [grep {ref $_ && length $_->{name}} @{$self->{$array}}];
   $count;  
585  }  }
586    
587  =head2 $self->rename ($field-name, $new-name, [$old, $new,...])  =head2 $self->rename ($field-name, $new-name, [$old, $new,...])
# Line 644  sub rename ($%) { Line 597  sub rename ($%) {
597    for (grep {/^-/} keys %params) {$option{substr ($_, 1)} = $params{$_}}    for (grep {/^-/} keys %params) {$option{substr ($_, 1)} = $params{$_}}
598    my %new_name;    my %new_name;
599    for (grep {/^[^-]/} keys %params) {    for (grep {/^[^-]/} keys %params) {
600      my ($old => $new) = (lc $_ => lc $params{$_});      my ($old => $new)
601          = ($self->_n11n_field_name ($_) => $self->_n11n_field_name ($params{$_}));
602        $old =~ tr/_/-/ if $option{translate_underscore};
603      $new =~ tr/_/-/ if $option{translate_underscore};      $new =~ tr/_/-/ if $option{translate_underscore};
604      Carp::croak "rename: $new: invalid field-name"      Carp::croak "rename: $new: invalid field-name"
605        if $option{validate} && $new =~ /$REG{UNSAFE_field_name}/;        if $option{field_name_validation}
606            && $new =~ /$REG{$option{field_name_unsafe_rule}}/;
607      $new_name{$old} = $new;      $new_name{$old} = $new;
608    }    }
609    for my $field (@{$self->{field}}) {    for my $field (@{$self->{value}}) {
610      if (length $new_name{$field->{name}}) {      if (length $new_name{$field->{name}}) {
611        $field->{name} = $new_name{$field->{name}};        $field->{name} = $new_name{$field->{name}};
612      }      }
# Line 668  for each value. Line 624  for each value.
624    
625  =cut  =cut
626    
627  sub scan ($&) {  sub _scan_sort ($\@\%) {
628    my ($self, $sub) = @_;    my $self = shift;
629      my ($array, $option) = @_;
630    my $sort;    my $sort;
631    $sort = \&_header_cmp if $self->{option}->{sort} eq 'good-practice';    $sort = \&_header_cmp if $option->{field_sort} eq 'good-practice';
632    $sort = {$a cmp $b} if $self->{option}->{sort} eq 'alphabetic';    $sort = {$a cmp $b} if $option->{field_sort} eq 'alphabetic';
633    my @field = @{$self->{field}};    return ( sort $sort @$array ) if ref $sort;
634    if (ref $sort) {    @$array;
635      @field = sort $sort @{$self->{field}};  }
636    }  
637    for my $field (@field) {  sub _n11n_field_name ($$) {
638      next if $field->{name} =~ /^_/;    no strict 'refs';
639      &$sub($field->{name} => $field->{body});    my $self = shift;
640    }    my $s = shift;
641      $s =~ s/^$REG{WSP}+//; $s =~ s/$REG{WSP}+$//;
642      $s = lc $s unless ${&_NS_uri2package ($self->{option}->{ns_default_phuri}).'::OPTION'}{case_sensible};
643      $s;
644  }  }
645    
646  # Compare function which makes it easy to sort headers in the  # Compare function which makes it easy to sort headers in the
# Line 712  sub stringify ($;%) { Line 672  sub stringify ($;%) {
672    $self->_init_by_format ($option{format}, \%option);    $self->_init_by_format ($option{format}, \%option);
673    for (grep {/^-/} keys %params) {$option{substr ($_, 1)} = $params{$_}}    for (grep {/^-/} keys %params) {$option{substr ($_, 1)} = $params{$_}}
674    my @ret;    my @ret;
675      ## RFC 2774 numerical field name prefix
676      my %nprefix;
677      {no strict 'refs';
678        %nprefix = reverse %{ $self->{ns}->{number2uri} };
679        my $i = (sort { $a <=> $b } keys %{ $self->{ns}->{number2uri} })[-1] + 1;
680        $i = 10 if $i < 10;
681        my $hprefix = ${ &_NS_uri2package
682                           ($self->{ns}->{phname2uri}->{'x-http'})
683                           .'::OPTION' } {namespace_phname_goodcase};
684        for my $uri (keys %nprefix) {
685          if ($nprefix{ $uri } < 10) {
686            $nprefix{ $uri } = $i++;
687          }
688          my $nsfs = $self->item ($uri, -by => 'http-ns-define');
689          for my $i (0..$nsfs->count-1) {
690            my $nsf = ($nsfs->value ($i))[0];
691            if ($nsf->value eq $uri) {
692              $nsf->replace (ns => $nprefix{ $uri });
693              $nprefix{ $uri } = $hprefix . '-' . $nprefix{ $uri };
694              last;
695            }
696          }
697        }
698      }
699    my $_stringify = sub {    my $_stringify = sub {
700        my ($name, $body) = (@_);      no strict 'refs';
701          my ($name, $body, $nsuri) = ($_[1]->{name}, $_[1]->{body}, $_[1]->{ns});
702        return unless length $name;        return unless length $name;
703        return if $option{mail_from} && $name eq 'mail-from';        return if $option{output_mail_from} && $name eq 'mail-from';
704        return if !$option{output_bcc} && ($name eq 'bcc' || $name eq 'resent-bcc');        $body = '' if !$option{output_bcc} && $name eq 'bcc';
705          my $nspackage = &_NS_uri2package ($nsuri);
706          my $oname;        ## Outputed field-name
707          my $prefix = $nprefix{ $nsuri }
708                    || ${$nspackage.'::OPTION'} {namespace_phname_goodcase}
709                    || $self->{ns}->{uri2phname}->{ $nsuri };
710          my $default_prefix = ${ &_NS_uri2package ($option{ns_default_phuri})
711                                  .'::OPTION'} {namespace_phname_goodcase};
712          $prefix = '' if $prefix eq $default_prefix;
713          $prefix =~ s/^\Q$default_prefix\E-//;
714          my $gc = ${$nspackage.'::OPTION'} {to_be_goodcase};
715          if (ref $gc) { $oname = &$gc ($self, $nspackage, $name, \%option) }
716          else { $oname = $name }
717          if ($prefix) { $oname = $prefix . '-' . $oname }
718        if ($option{format} =~ /uri-url-mailto/) {        if ($option{format} =~ /uri-url-mailto/) {
719          return if ((   $option{uri_mailto_safe}->{$name}          return if (( ${$nspackage.'::OPTION'} {uri_mailto_safe}->{$name}
720               || $option{uri_mailto_safe}->{':default'})                    || ${$nspackage.'::OPTION'} {uri_mailto_safe}->{':default'})
721                < $option{uri_mailto_safe_level});                    < $option{uri_mailto_safe_level});
722          if ($name eq 'to') {          if ($name eq 'to') {
723            $body = $self->field ('to');            $body = $self->field ('to', -new_item_unless_exist => 0);
724            return unless ref $body && $body->have_group;            if (ref $body && $body->have_group) {
725                #
726              } elsif (ref $body && $body->count > 1) {
727                $body = $body->clone;
728                $body->delete ({-by => 'index'}, 0);
729              }
730          }          }
731        }        }
732        my $fbody;        my $fbody;
# Line 732  sub stringify ($;%) { Line 735  sub stringify ($;%) {
735        } else {        } else {
736          $fbody = $body;          $fbody = $body;
737        }        }
738        return unless length $fbody;        unless (${$nspackage.'::OPTION'} {field}->{$name}->{empty_body}) {
739            return unless length $fbody;
740          }
741        unless ($option{linebreak_strict}) {        unless ($option{linebreak_strict}) {
742          ## bare \x0D and bare \x0A are unsafe          ## bare \x0D and bare \x0A are unsafe
743          $fbody =~ s/\x0D(?=[^\x09\x0A\x20])/\x0D\x20/g;          $fbody =~ s/\x0D(?=[^\x09\x0A\x20])/\x0D\x20/g;
# Line 740  sub stringify ($;%) { Line 745  sub stringify ($;%) {
745        } else {        } else {
746          $fbody =~ s/\x0D\x0A(?=[^\x09\x20])/\x0D\x0A\x20/g;          $fbody =~ s/\x0D\x0A(?=[^\x09\x20])/\x0D\x0A\x20/g;
747        }        }
748        if (ref $option{capitalize}) {        if ($option{use_folding}) {
749          $name = &{$option{capitalize}} ($self, $name);          if (ref $option{output_folding}) {
750        } elsif ($option{capitalize}) {            $fbody = &{$option{output_folding}} ($self, $fbody,
751          $name =~ s/((?:^|-)[a-z])/uc($1)/ge;              -initial_length => length ($oname) +2);
752        }          } elsif ($option{output_folding}) {
753        if (ref $option{fold}) {            $fbody = $self->_fold ($fbody, -initial_length => length ($oname) +2);
754          $fbody = &{$option{fold}} ($self, $fbody);          }
       } elsif ($option{fold}) {  
         $fbody = $self->_fold ($fbody);  
755        }        }
756        push @ret, sprintf $option{field_format_pattern}, $name, $fbody;        push @ret, sprintf $option{field_format_pattern}, $oname, $fbody;
757      };      };
758    if ($option{format} =~ /uri-url-mailto-to/) {    if ($option{format} =~ /uri-url-mailto/) {
759      if ($self->field_exist ('to')) {      if ($option{format} =~ /uri-url-mailto-to/) {
760        my $to = $self->field ('to');        my $to = $self->field ('to', -new_item_unless_exist => 0);
761        unless ($to->have_group) {        if ($to) {
762          my $fbody = $to->stringify (-format => $option{format});          unless ($to->have_group) {
763          return &{$option{fold}} ($self, $fbody);            my $fbody = $to->stringify (-format => $option{format}, -max => 1);
764              return &{$option{output_folding}} ($self, $fbody);
765            }
766          }
767          '';
768        } elsif ($option{format} =~ /uri-url-mailto-rfc1738/) {
769          my $to = $self->field ('to', -new_item_unless_exist => 0);
770          if ($to) {
771            my $fbody = $to->addr_spec (-format => $option{format});
772            return &{$option{output_folding}} ($self, $fbody);
773        }        }
774          '';
775        } else {
776          $self->scan ($_stringify);
777          my $ret = join ('&', @ret);
778          $ret;
779      }      }
     '';  
   } elsif ($option{format} =~ /uri-url-mailto/) {  
     $self->scan ($_stringify);  
     my $ret = join ('&', @ret);  
     $ret;  
780    } else {    } else {
781      if ($option{mail_from}) {      if ($option{output_mail_from}) {
782        my $fromline = $self->field ('mail-from');        my $fromline = $self->field ('mail-from', -new_item_unless_exist => 0);
783        push @ret, 'From '.$fromline if $fromline;        push @ret, 'From '.$fromline if $fromline;
784      }      }
785      $self->scan ($_stringify);      $self->scan ($_stringify);
786      my $ret = join ("\n", @ret);      my $ret = join ("\x0D\x0A", @ret);
787      $ret? $ret."\n": '';      $ret? $ret."\x0D\x0A": '';
788    }    }
789  }  }
790  *as_string = \&stringify;  *as_string = \&stringify;
# Line 789  sub option ($@) { Line 801  sub option ($@) {
801      return $self->{option}->{ shift (@_) };      return $self->{option}->{ shift (@_) };
802    }    }
803    while (my ($name, $value) = splice (@_, 0, 2)) {    while (my ($name, $value) = splice (@_, 0, 2)) {
     $name =~ s/^-//;  
804      $self->{option}->{$name} = $value;      $self->{option}->{$name} = $value;
805      if ($name eq 'format') {      if ($name eq 'format') {
806        for my $f (@{$self->{field}}) {        for my $f (@{$self->{field}}) {
# Line 801  sub option ($@) { Line 812  sub option ($@) {
812    }    }
813  }  }
814    
815  sub field_type ($$;$) {  sub field_type ($@) {shift->SUPER::value_type (@_)}
   my $self = shift;  
   my $field_name = shift;  
   my $new_field_type = shift;  
   if ($new_field_type) {  
     $self->{option}->{field_type}->{$field_name} = $new_field_type;  
   }  
   $self->{option}->{field_type}->{$field_name}  
   || $self->{option}->{field_type}->{':DEFAULT'};  
 }  
   
 sub _delete_empty_field ($) {  
   my $self = shift;  
   my @ret;  
   for my $field (@{$self->{field}}) {  
     push @ret, $field if $field->{name};  
   }  
   $self->{field} = \@ret;  
   $self;  
 }  
816    
817  sub _fold ($$;$) {  ## $self->_fold ($string, %option = (-max, -initial_length(for field-name)) )
818    sub _fold ($$;%) {
819    my $self = shift;    my $self = shift;
820    my $string = shift;    my $string = shift;
821    my $len = shift || $self->{option}->{fold_length};    my %option = @_;
822    $len = 60 if $len < 60;    my $max = $self->{option}->{line_length_max};
823      $max = 20 if $max < 20;
824        
825    ## This code is taken from Mail::Header 1.43 in MailTools,    my $l = $option{-initial_length} || 0;
826    ## by Graham Barr (Maintained by Mark Overmeer <mailtools@overmeer.net>).    $l += length $1 if $string =~ /^([^\x09\x20]+)/;
827    my $max = int($len - 5);         # 4 for leading spcs + 1 for [\,\;]    $string =~ s{([\x09\x20][^\x09\x20]+)}{
828    my $min = int($len * 4 / 5) - 4;      my $s = $1;
829    my $ml = $len;      if (($l + length $s) > $max) {
830            $s = "\x0D\x0A\x20" . $s;
831    if (length($string) > $ml) {        $l = 1 + length $s;
832       #Split the line up      } else { $l += length $s }
833       # first bias towards splitting at a , or a ; >4/5 along the line      $s;
834       # next split a whitespace    }gex;
      # else we are looking at a single word and probably don't want to split  
      my $x = "";  
      $x .= "$1\n "  
        while($string =~ s/^$REG{WSP}*(  
                           [^"]{$min,$max}?[\,\;]  
                           |[^"]{1,$max}$REG{WSP}  
                           |[^\s"]*(?:"[^"]*"[^\s"]*)+$REG{WSP}  
                           |[^\s"]+$REG{WSP}  
                           )  
                         //x);  
      $x .= $string;  
      $string = $x;  
      $string =~ s/(\A$REG{WSP}+|$REG{WSP}+\Z)//sog;  
      $string =~ s/\s+\n/\n/sog;  
   }  
835    $string;    $string;
836  }  }
837    
838    sub _ns_load_ph ($$) {
839      my $self = shift;
840      my $name = shift;     ## normalized prefix (without HYPHEN-MINUS)
841      return if $self->{ns}->{phname2uri}->{$name};
842      $self->{ns}->{phname2uri}->{$name} = $NS_phname2uri{$name};
843      return unless $self->{ns}->{phname2uri}->{$name};
844      $self->{ns}->{uri2phname}->{$self->{ns}->{phname2uri}->{$name}} = $name;
845    }
846    
847    sub _ns_associate_numerical_prefix ($) {
848      my $self = shift;
849      $self->scan (sub {shift;
850        my $f = shift;  return unless $f->{name};
851        if ($f->{ns} eq $self->{ns}->{phname2uri}->{'x-http'}
852         || $f->{ns} eq $self->{ns}->{phname2uri}->{'x-http-c'}) {
853          my $fn = $f->{name};
854          if ($fn eq 'opt' || $fn eq 'man') {
855            $f->{body} = $self->_parse_value ($fn => $f->{body}, ns => $f->{ns});
856            for ($f->{body}->value (0..$f->{body}->count-1)) {
857              my ($nsuri, $number) = ($_->value, $_->item ('ns'));
858              if ($number && $nsuri) {
859                $self->{ns}->{number2uri}->{ $number } = $nsuri;
860              }
861            }
862          }
863        }
864      });
865      $self->scan (sub {shift;
866        my $f = shift;
867        if ($f->{ns} =~ /urn:x-suika-fam-cx:msgpm:header:x-temp:([0-9]+)$/ && $self->{ns}->{number2uri}->{ $1 }) {
868          $f->{ns} = $self->{ns}->{number2uri}->{ $1 };
869        }
870      });
871    }
872    
873    ## $package_name = Message::Header::_NS_uri2phpackage ($nsuri)
874    ## (For internal use of Message::* modules)
875    sub _NS_uri2phpackage ($) {
876      $NS_uri2phpackage{$_[0]}
877      || $NS_uri2phpackage{$Message::Header::Default::OPTION{namespace_uri}};
878    }
879    sub _NS_uri2package ($) {
880      $NS_uri2package{$_[0]}
881      || $NS_uri2phpackage{$_[0]}
882      || $NS_uri2phpackage{$Message::Header::Default::OPTION{namespace_uri}};
883    }
884    
885  =head2 $self->clone ()  =head2 $self->clone ()
886    
887  Returns a copy of Message::Header object.  Returns a copy of Message::Header object.
888    
889  =cut  =cut
890    
891  sub clone ($) {  ## Inhreited
   my $self = shift;  
   my $clone = new Message::Header;  
   for my $name (%{$self->{option}}) {  
     if (ref $self->{option}->{$name} eq 'HASH') {  
       $clone->{option}->{$name} = {%{$self->{option}->{$name}}};  
     } elsif (ref $self->{option}->{$name} eq 'ARRAY') {  
       $clone->{option}->{$name} = [@{$self->{option}->{$name}}];  
     } else {  
       $clone->{option}->{$name} = $self->{option}->{$name};  
     }  
   }  
   for (@{$self->{field}}) {  
     $clone->add ($_->{name}, scalar $_->{body});  
   }  
   $clone;  
 }  
892    
893  =head1 NOTE  =head1 NOTE
894    
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