Message/Field/AngleQuoted.pm


=head1 NAME

Message::Field::AngleQuoted --- A Perl Module for Internet Message
Header Field Bodies filled with a URI

=cut

package Message::Field::AngleQuoted;
use strict;
require 5.6.0;
use re 'eval';
use vars qw(%DEFAULT @ISA %REG $VERSION);
$VERSION=do{my @r=(q$Revision: 1.2 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r};
require Message::Field::Structured;
push @ISA, qw(Message::Field::Structured);

%REG = %Message::Util::REG;

=head1 CONSTRUCTORS

The following methods construct new objects:

=over 4

=cut

%DEFAULT = (
    -_MEMBERS   => [qw|display_name keyword|],
    -_METHODS   => [qw|display_name value
                       comment_add comment_delete comment_item
                       comment_count|],
    -allow_empty        => 0,
    -comment_to_display_name    => 0,
    #encoding_after_encode
    #encoding_before_decode
    #field_param_name
    #field_name
    #hook_encode_string
    #hook_decode_string
    -output_angle_bracket       => 1,
    -output_comment     => 1,
    -output_display_name        => 1,
    -output_keyword     => 0,
    #parse_all
    -unsafe_rule_of_display_name        => 'NON_http_attribute_char_wsp',
    -unsafe_rule_of_keyword     => 'NON_http_attribute_char_wsp',
    -use_comment        => 1,
    -use_comment_in_angle       => 0,
    -use_display_name   => 1,
    -use_keyword        => 0,
);

sub _init ($;%) {
  my $self = shift;
  my %options = @_;
  my $DEFAULT = Message::Util::make_clone (\%DEFAULT);
  $self->SUPER::_init (%$DEFAULT, %options);
}

=item $uri = Message::Field::URI->new ([%options])

Constructs a new object.  You might pass some options as parameters 
to the constructor.

=cut

## Inherited

=item $uri = Message::Field::URI->parse ($field-body, [%options])

Constructs a new object with given field body.  You might pass 
some options as parameters to the constructor.

=cut

sub parse ($$;%) {
  my $class = shift;
  my $self = bless {}, $class;
  my $body = shift;
  $self->_init (@_);
  my ($value, $dname, @comment, $keyword);
  ($body, @comment)
    = $self->Message::Util::delete_comment_to_array ($body,
      -use_angle_quoted => $self->{option}->{use_comment_in_angle}? 0: 1,
    )
    if $self->{option}->{use_comment};
  if ($body =~ /($REG{angle_qcontent})?$REG{M_angle_quoted}/) {
    ($dname, $value) = ($1, $2);
    $dname =~ s/^$REG{WSP}+//;  $dname =~ s/$REG{WSP}+$//;
    $dname = $self->Message::Util::decode_quoted_string ($dname);
  } elsif ($self->{option}->{use_keyword}
    && $body =~ /^$REG{FWS}($REG{atext_dot})$REG{FWS}$/) {
    #$keyword = Message::Util::remove_meaningless_wsp ($1);
    $keyword = $1; $keyword =~ tr/\x09\x20//d;
  } else {
    $value = $body;
  }
  $self->_save_value ($value, $dname, \@comment, keyword => $keyword);
  $self;
}

## $self->_save_value ($value, $display_name, \@comment)
sub _save_value ($$\@%) {
  my $self = shift;
  my ($v, $dn, $comment, %misc) = @_;
  $self->{comment} = $comment;
  $self->{value} = $v;
  $self->{display_name} = $dn;
  $self->{keyword} = $misc{keyword};
}

sub value ($;$%) {
  my $self = shift;
  my $value = shift;
  if (defined $value) {
    $self->{value} = $value;
  }
  $self->{value};
}

sub display_name ($;$%) {
  my $self = shift;
  my $dname = shift;
  if (defined $dname) {
    $self->{display_name} = $dname;
  }
  if (length $self->{display_name}) {
    $self->{display_name};
  } elsif ($self->{option}->{comment_to_display_name}) {
    $self->{comment}->[0];
  }
}


sub stringify ($;%) {
  my $self = shift;
  my %o = @_;  my %option = %{$self->{option}};
  for (grep {/^-/} keys %o) {$option{substr ($_, 1)} = $o{$_}}
  my %v = $self->_stringify_value (\%option);
  my ($dn, $as, $cm) = ('', '', '');
  if (length $v{keyword}) {
    if ($option{output_keyword}) {
      my %s = &{$option{hook_encode_string}} ($self, $v{keyword}, type => 'phrase');
      $as = Message::Util::quote_unsafe_string
          ($s{value}, unsafe => $option{unsafe_rule_of_keyword});
    } else {
      $as = '('. $self->Message::Util::encode_ccontent ($v{keyword}) .')';
    }
  } else {
    if (length ($v{value}) == 0 && !$option{allow_empty}) {
      return '';
    }
    if (length $v{display_name}) {
      if ($option{use_display_name} && $option{output_display_name}) {
          my %s = &{$option{hook_encode_string}} ($self, 
              $v{display_name}, type => 'phrase');
          $dn = Message::Util::quote_unsafe_string
              ($s{value}, unsafe => $option{unsafe_rule_of_display_name}) . ' ';
      } elsif ($option{use_comment} && $option{output_comment}) {
        $dn = ' ('. $self->Message::Util::encode_ccontent ($v{display_name}) .')';
      }
    } elsif ($option{comment_to_display_name}
          && $option{use_display_name} && $option{output_display_name}) {
      my $fullname = ${$v{comment}}[0];  $option{_comment_min} = 1;
      if (length $fullname) {
        my %s = &{$option{hook_encode_string}} ($self, $fullname, type => 'phrase');
        $dn = Message::Util::quote_unsafe_string
          ($s{value}, unsafe => $option{unsafe_rule_of_display_name}) . ' ';
      }
    }
    
    if ($option{output_angle_bracket}) {
      $as = '<' . $v{value} . '>';
    } else {
      $as = $v{value};
    }
  }
  if ($option{use_comment} && $option{output_comment}) {
    $cm = $self->_comment_stringify (\%option);
    $cm = ' ' . $cm if $cm;
    if ($dn && !($option{use_display_name} && $option{output_display_name})) {
      $cm = $dn . $cm;  $dn = '';
    }
  }
  $dn . $as . $cm;
}
*as_string = \&stringify;

## $self->_stringify_value (\%option)
sub _stringify_value ($\%) {
  my $self = shift;
  my $option = shift;
  my %r;
  $r{value} = ''.$self->{value};
  $r{display_name} = $self->{display_name};
  $r{comment} = $self->{comment};
  $r{keyword} = $self->{keyword};
  %r;
}

## $self->_option_recursive (\%argv)
sub _option_recursive ($\%) {
  my $self = shift;
  my $o = shift;
  eval { $self->{value}->option (%$o) if ref $self->{value} };
}

=head1 LICENSE

Copyright 2002 wakaba E<lt>w@suika.fam.cxE<gt>.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.

=head1 CHANGE

See F<ChangeLog>.
$Date: 2002/06/23 12:10:15 $

=cut

1;
1	wakaba	1.1
2			=head1 NAME
3
4			Message::Field::AngleQuoted --- A Perl Module for Internet Message
5			Header Field Bodies filled with a URI
6
7			=cut
8
9			package Message::Field::AngleQuoted;
10			use strict;
11			require 5.6.0;
12			use re 'eval';
13			use vars qw(%DEFAULT @ISA %REG $VERSION);
14	wakaba	1.3	$VERSION=do{my @r=(q$Revision: 1.2 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r};
15	wakaba	1.1	require Message::Field::Structured;
16			push @ISA, qw(Message::Field::Structured);
17
18			%REG = %Message::Util::REG;
19
20			=head1 CONSTRUCTORS
21
22			The following methods construct new objects:
23
24			=over 4
25
26			=cut
27
28			%DEFAULT = (
29			-_MEMBERS => [qw\|display_name keyword\|],
30			-_METHODS => [qw\|display_name value
31			comment_add comment_delete comment_item
32			comment_count\|],
33			-allow_empty => 0,
34			-comment_to_display_name => 0,
35			#encoding_after_encode
36			#encoding_before_decode
37			#field_param_name
38			#field_name
39			#hook_encode_string
40			#hook_decode_string
41			-output_angle_bracket => 1,
42			-output_comment => 1,
43			-output_display_name => 1,
44			-output_keyword => 0,
45			#parse_all
46			-unsafe_rule_of_display_name => 'NON_http_attribute_char_wsp',
47			-unsafe_rule_of_keyword => 'NON_http_attribute_char_wsp',
48			-use_comment => 1,
49			-use_comment_in_angle => 0,
50			-use_display_name => 1,
51			-use_keyword => 0,
52			);
53
54			sub _init ($;%) {
55			my $self = shift;
56			my %options = @_;
57			my $DEFAULT = Message::Util::make_clone (\%DEFAULT);
58			$self->SUPER::_init (%$DEFAULT, %options);
59			}
60
61			=item $uri = Message::Field::URI->new ([%options])
62
63			Constructs a new object. You might pass some options as parameters
64			to the constructor.
65
66			=cut
67
68			## Inherited
69
70			=item $uri = Message::Field::URI->parse ($field-body, [%options])
71
72			Constructs a new object with given field body. You might pass
73			some options as parameters to the constructor.
74
75			=cut
76
77			sub parse ($$;%) {
78			my $class = shift;
79			my $self = bless {}, $class;
80			my $body = shift;
81			$self->_init (@_);
82			my ($value, $dname, @comment, $keyword);
83			($body, @comment)
84			= $self->Message::Util::delete_comment_to_array ($body,
85			-use_angle_quoted => $self->{option}->{use_comment_in_angle}? 0: 1,
86			)
87			if $self->{option}->{use_comment};
88			if ($body =~ /($REG{angle_qcontent})?$REG{M_angle_quoted}/) {
89			($dname, $value) = ($1, $2);
90			$dname =~ s/^$REG{WSP}+//; $dname =~ s/$REG{WSP}+$//;
91			$dname = $self->Message::Util::decode_quoted_string ($dname);
92			} elsif ($self->{option}->{use_keyword}
93			&& $body =~ /^$REG{FWS}($REG{atext_dot})$REG{FWS}$/) {
94			#$keyword = Message::Util::remove_meaningless_wsp ($1);
95			$keyword = $1; $keyword =~ tr/\x09\x20//d;
96			} else {
97			$value = $body;
98			}
99			$self->_save_value ($value, $dname, \@comment, keyword => $keyword);
100			$self;
101			}
102
103			## $self->_save_value ($value, $display_name, \@comment)
104			sub _save_value ($$\@%) {
105			my $self = shift;
106			my ($v, $dn, $comment, %misc) = @_;
107			$self->{comment} = $comment;
108			$self->{value} = $v;
109			$self->{display_name} = $dn;
110			$self->{keyword} = $misc{keyword};
111			}
112
113			sub value ($;$%) {
114			my $self = shift;
115			my $value = shift;
116			if (defined $value) {
117			$self->{value} = $value;
118			}
119			$self->{value};
120			}
121
122			sub display_name ($;$%) {
123			my $self = shift;
124			my $dname = shift;
125			if (defined $dname) {
126			$self->{display_name} = $dname;
127			}
128	wakaba	1.3	if (length $self->{display_name}) {
129			$self->{display_name};
130			} elsif ($self->{option}->{comment_to_display_name}) {
131			$self->{comment}->[0];
132			}
133	wakaba	1.1	}
134
135
136			sub stringify ($;%) {
137			my $self = shift;
138			my %o = @_; my %option = %{$self->{option}};
139			for (grep {/^-/} keys %o) {$option{substr ($_, 1)} = $o{$_}}
140			my %v = $self->_stringify_value (\%option);
141			my ($dn, $as, $cm) = ('', '', '');
142			if (length $v{keyword}) {
143			if ($option{output_keyword}) {
144			my %s = &{$option{hook_encode_string}} ($self, $v{keyword}, type => 'phrase');
145			$as = Message::Util::quote_unsafe_string
146			($s{value}, unsafe => $option{unsafe_rule_of_keyword});
147			} else {
148			$as = '('. $self->Message::Util::encode_ccontent ($v{keyword}) .')';
149			}
150			} else {
151			if (length ($v{value}) == 0 && !$option{allow_empty}) {
152			return '';
153			}
154			if (length $v{display_name}) {
155			if ($option{use_display_name} && $option{output_display_name}) {
156			my %s = &{$option{hook_encode_string}} ($self,
157			$v{display_name}, type => 'phrase');
158			$dn = Message::Util::quote_unsafe_string
159			($s{value}, unsafe => $option{unsafe_rule_of_display_name}) . ' ';
160			} elsif ($option{use_comment} && $option{output_comment}) {
161			$dn = ' ('. $self->Message::Util::encode_ccontent ($v{display_name}) .')';
162			}
163			} elsif ($option{comment_to_display_name}
164			&& $option{use_display_name} && $option{output_display_name}) {
165			my $fullname = ${$v{comment}}[0]; $option{_comment_min} = 1;
166			if (length $fullname) {
167			my %s = &{$option{hook_encode_string}} ($self, $fullname, type => 'phrase');
168			$dn = Message::Util::quote_unsafe_string
169			($s{value}, unsafe => $option{unsafe_rule_of_display_name}) . ' ';
170			}
171			}
172
173			if ($option{output_angle_bracket}) {
174			$as = '<' . $v{value} . '>';
175			} else {
176			$as = $v{value};
177			}
178			}
179			if ($option{use_comment} && $option{output_comment}) {
180			$cm = $self->_comment_stringify (\%option);
181			$cm = ' ' . $cm if $cm;
182			if ($dn && !($option{use_display_name} && $option{output_display_name})) {
183			$cm = $dn . $cm; $dn = '';
184			}
185			}
186			$dn . $as . $cm;
187			}
188			*as_string = \&stringify;
189
190			## $self->_stringify_value (\%option)
191			sub _stringify_value ($\%) {
192			my $self = shift;
193			my $option = shift;
194			my %r;
195			$r{value} = ''.$self->{value};
196			$r{display_name} = $self->{display_name};
197			$r{comment} = $self->{comment};
198			$r{keyword} = $self->{keyword};
199			%r;
200			}
201
202			## $self->_option_recursive (\%argv)
203			sub _option_recursive ($\%) {
204			my $self = shift;
205			my $o = shift;
206			eval { $self->{value}->option (%$o) if ref $self->{value} };
207			}
208
209			=head1 LICENSE
210
211			Copyright 2002 wakaba E<lt>w@suika.fam.cxE<gt>.
212
213			This program is free software; you can redistribute it and/or modify
214			it under the terms of the GNU General Public License as published by
215			the Free Software Foundation; either version 2 of the License, or
216			(at your option) any later version.
217
218			This program is distributed in the hope that it will be useful,
219			but WITHOUT ANY WARRANTY; without even the implied warranty of
220			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
221			GNU General Public License for more details.
222
223			You should have received a copy of the GNU General Public License
224			along with this program; see the file COPYING. If not, write to
225			the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
226			Boston, MA 02111-1307, USA.
227
228			=head1 CHANGE
229
230			See F<ChangeLog>.
231	wakaba	1.3	$Date: 2002/06/23 12:10:15 $
232	wakaba	1.1
233			=cut
234
235			1;