Message/DOM/EntityReference.pm

package Message::DOM::EntityReference;
use strict;
our $VERSION=do{my @r=(q$Revision: 1.4 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r};
push our @ISA, 'Message::DOM::Node', 'Message::IF::EntityReference';
require Message::DOM::Node;

## Spec:
## <http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407/core.html#ID-11C98490>

sub ____new ($$$) {
  my $self = shift->SUPER::____new (shift);
  $$self->{node_name} = $_[0];
  $$self->{child_nodes} = [];
  return $self;
} # ____new
             
sub AUTOLOAD {
  my $method_name = our $AUTOLOAD;
  $method_name =~ s/.*:://;
  return if $method_name eq 'DESTROY';

  if ({
    ## Read-only attributes (trivial accessors)
    node_name => 1,
  }->{$method_name}) {
    no strict 'refs';
    eval qq{
      sub $method_name (\$) {
        if (\@_ > 1) {
          require Carp;
          Carp::croak (qq<Can't modify read-only attribute>);
        }
        return \${\$_[0]}->{$method_name}; 
      }
    };
    goto &{ $AUTOLOAD };
  } elsif ({
    ## Read-write attributes (boolean, trivial accessors)
    manakai_expanded => 1,
    manakai_external => 1,
  }->{$method_name}) {
    no strict 'refs';
    eval qq{
      sub $method_name (\$;\$) {
        if (\@_ > 1) {
          if (\${\${\$_[0]}->{owner_document}}->{manakai_strict_error_checking} and
              \${\$_[0]}->{manakai_read_only}) {
            report Message::DOM::DOMException
                -object => \$_[0],
                -type => 'NO_MODIFICATION_ALLOWED_ERR',
                -subtype => 'READ_ONLY_NODE_ERR';
          }
          if (\$_[1]) {
            \${\$_[0]}->{$method_name} = 1;
          } else {
            delete \${\$_[0]}->{$method_name};
          }
        }
        return \${\$_[0]}->{$method_name};
      }
    };
    goto &{ $AUTOLOAD };
  } else {
    require Carp;
    Carp::croak (qq<Can't locate method "$AUTOLOAD">);
  }
} # AUTOLOAD

## |Node| attributes

sub base_uri ($) {
  ## NOTE: Same as |CharacterData|'s.

  my $self = $_[0];
  local $Error::Depth = $Error::Depth + 1;
  my $pe = $$self->{parent_node};
  while (defined $pe) {
    my $nt = $pe->node_type;
    if ($nt == 1 or $nt == 2 or $nt == 6 or $nt == 9 or $nt == 11) {
      ## Element, Attr, Entity, Document, or DocumentFragment
      return $pe->base_uri;
    } elsif ($nt == 5) {
      ## EntityReference
      return $pe->manakai_entity_base_uri if $pe->manakai_external;
    }
    $pe = $$pe->{parent_node};
  }
  return $pe->base_uri if $pe;
  return $$self->{owner_document}->base_uri;
} # base_uri

sub node_name ($); # read-only trivial accessor

sub node_type () { 5 } # ENTITY_REFERENCE_NODE

## |EntityReference| attributes

sub manakai_entity_base_uri ($;$) {
  my $self = $_[0];
  if (@_ > 1) {
    if (${$$self->{owner_document}}->{strict_error_checking}) {
      if ($$self->{manakai_read_only}) {
        report Message::DOM::DOMException
            -object => $self,
            -type => 'NO_MODIFICATION_ALLOWED_ERR',
            -subtype => 'READ_ONLY_NODE_ERR';
      }
    }
    if (defined $_[1]) {
      $$self->{manakai_entity_base_uri} = ''.$_[1];
    } else {
      delete $$self->{manakai_entity_base_uri};
    }
  }
  
  if (defined $$self->{manakai_entity_base_uri}) {
    return $$self->{manakai_entity_base_uri};
  } else {
    local $Error::Depth = $Error::Depth + 1;
    return $self->base_uri;
  }
} # manakai_entity_base_uri

sub manakai_expanded ($;$);

sub manakai_external ($;$);

package Message::IF::EntityReference;

package Message::DOM::Document;

sub create_entity_reference ($$) {
  our $CreateEntityReference_OpenEntity;
      ## TODO: This is Multithread unsafe

  my $self = $_[0];
  my $orig_strict = $self->strict_error_checking;
  if ($orig_strict) {
    my $xv = $self->xml_version;
    if (defined $xv) {
      if ($xv eq '1.0' and
          $_[1] =~ /\A\p{InXML_NameStartChar10}\p{InXMLNameChar10}*\z/) {
        #
      } elsif ($xv eq '1.1' and
               $_[1] =~ /\A\p{InXMLNameStartChar11}\p{InXMLNameChar11}*\z/) {
        #
      } else {
        report Message::DOM::DOMException
            -object => $self,
            -type => 'INVALID_CHARACTER_ERR',
            -subtype => 'MALFORMED_NAME_ERR';
      }
    }
  }

  my $r = Message::DOM::EntityReference->____new ($self, $_[1]);

  ## Expansion
  unless ($CreateEntityReference_OpenEntity->{$_[1]}) {
    local $CreateEntityReference_OpenEntity->{$_[1]} = 1;
    local $Error::Depth = $Error::Depth + 1;

    my $doctype = $self->doctype;
    unless ($doctype) {
      $r->manakai_set_read_only (1, 1);
      return $r;
    }

    my $ent = $doctype->get_general_entity_node ($_[1]);
    unless ($ent) {
      $r->manakai_set_read_only (1, 1);
      return $r;
    }

    $self->strict_error_checking (0);
    for my $c (@{$ent->child_nodes}) {
      my $clone = $c->clone_node (1);
      $r->append_child ($clone);
    }
    $r->manakai_expanded ($ent->has_replacement_tree);
    $self->strict_error_checking ($orig_strict);
  }
  $r->manakai_set_read_only (1, 1);
  return $r;
} # create_entity_reference

=head1 LICENSE

Copyright 2007 Wakaba <w@suika.fam.cx>

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

=cut

1;
## $Date: 2007/06/17 13:37:40 $
1	package Message::DOM::EntityReference;
2	use strict;
3	our $VERSION=do{my @r=(q$Revision: 1.4 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r};
4	push our @ISA, 'Message::DOM::Node', 'Message::IF::EntityReference';
5	require Message::DOM::Node;
6
7	## Spec:
8	## <http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407/core.html#ID-11C98490>
9
10	sub ____new ($$$) {
11	my $self = shift->SUPER::____new (shift);
12	$$self->{node_name} = $_[0];
13	$$self->{child_nodes} = [];
14	return $self;
15	} # ____new
16
17	sub AUTOLOAD {
18	my $method_name = our $AUTOLOAD;
19	$method_name =~ s/.*:://;
20	return if $method_name eq 'DESTROY';
21
22	if ({
23	## Read-only attributes (trivial accessors)
24	node_name => 1,
25	}->{$method_name}) {
26	no strict 'refs';
27	eval qq{
28	sub $method_name (\$) {
29	if (\@_ > 1) {
30	require Carp;
31	Carp::croak (qq<Can't modify read-only attribute>);
32	}
33	return \${\$_[0]}->{$method_name};
34	}
35	};
36	goto &{ $AUTOLOAD };
37	} elsif ({
38	## Read-write attributes (boolean, trivial accessors)
39	manakai_expanded => 1,
40	manakai_external => 1,
41	}->{$method_name}) {
42	no strict 'refs';
43	eval qq{
44	sub $method_name (\$;\$) {
45	if (\@_ > 1) {
46	if (\${\${\$_[0]}->{owner_document}}->{manakai_strict_error_checking} and
47	\${\$_[0]}->{manakai_read_only}) {
48	report Message::DOM::DOMException
49	-object => \$_[0],
50	-type => 'NO_MODIFICATION_ALLOWED_ERR',
51	-subtype => 'READ_ONLY_NODE_ERR';
52	}
53	if (\$_[1]) {
54	\${\$_[0]}->{$method_name} = 1;
55	} else {
56	delete \${\$_[0]}->{$method_name};
57	}
58	}
59	return \${\$_[0]}->{$method_name};
60	}
61	};
62	goto &{ $AUTOLOAD };
63	} else {
64	require Carp;
65	Carp::croak (qq<Can't locate method "$AUTOLOAD">);
66	}
67	} # AUTOLOAD
68
69	## \|Node\| attributes
70
71	sub base_uri ($) {
72	## NOTE: Same as \|CharacterData\|'s.
73
74	my $self = $_[0];
75	local $Error::Depth = $Error::Depth + 1;
76	my $pe = $$self->{parent_node};
77	while (defined $pe) {
78	my $nt = $pe->node_type;
79	if ($nt == 1 or $nt == 2 or $nt == 6 or $nt == 9 or $nt == 11) {
80	## Element, Attr, Entity, Document, or DocumentFragment
81	return $pe->base_uri;
82	} elsif ($nt == 5) {
83	## EntityReference
84	return $pe->manakai_entity_base_uri if $pe->manakai_external;
85	}
86	$pe = $$pe->{parent_node};
87	}
88	return $pe->base_uri if $pe;
89	return $$self->{owner_document}->base_uri;
90	} # base_uri
91
92	sub node_name ($); # read-only trivial accessor
93
94	sub node_type () { 5 } # ENTITY_REFERENCE_NODE
95
96	## \|EntityReference\| attributes
97
98	sub manakai_entity_base_uri ($;$) {
99	my $self = $_[0];
100	if (@_ > 1) {
101	if (${$$self->{owner_document}}->{strict_error_checking}) {
102	if ($$self->{manakai_read_only}) {
103	report Message::DOM::DOMException
104	-object => $self,
105	-type => 'NO_MODIFICATION_ALLOWED_ERR',
106	-subtype => 'READ_ONLY_NODE_ERR';
107	}
108	}
109	if (defined $_[1]) {
110	$$self->{manakai_entity_base_uri} = ''.$_[1];
111	} else {
112	delete $$self->{manakai_entity_base_uri};
113	}
114	}
115
116	if (defined $$self->{manakai_entity_base_uri}) {
117	return $$self->{manakai_entity_base_uri};
118	} else {
119	local $Error::Depth = $Error::Depth + 1;
120	return $self->base_uri;
121	}
122	} # manakai_entity_base_uri
123
124	sub manakai_expanded ($;$);
125
126	sub manakai_external ($;$);
127
128	package Message::IF::EntityReference;
129
130	package Message::DOM::Document;
131
132	sub create_entity_reference ($$) {
133	our $CreateEntityReference_OpenEntity;
134	## TODO: This is Multithread unsafe
135
136	my $self = $_[0];
137	my $orig_strict = $self->strict_error_checking;
138	if ($orig_strict) {
139	my $xv = $self->xml_version;
140	if (defined $xv) {
141	if ($xv eq '1.0' and
142	$_[1] =~ /\A\p{InXML_NameStartChar10}\p{InXMLNameChar10}*\z/) {
143	#
144	} elsif ($xv eq '1.1' and
145	$_[1] =~ /\A\p{InXMLNameStartChar11}\p{InXMLNameChar11}*\z/) {
146	#
147	} else {
148	report Message::DOM::DOMException
149	-object => $self,
150	-type => 'INVALID_CHARACTER_ERR',
151	-subtype => 'MALFORMED_NAME_ERR';
152	}
153	}
154	}
155
156	my $r = Message::DOM::EntityReference->____new ($self, $_[1]);
157
158	## Expansion
159	unless ($CreateEntityReference_OpenEntity->{$_[1]}) {
160	local $CreateEntityReference_OpenEntity->{$_[1]} = 1;
161	local $Error::Depth = $Error::Depth + 1;
162
163	my $doctype = $self->doctype;
164	unless ($doctype) {
165	$r->manakai_set_read_only (1, 1);
166	return $r;
167	}
168
169	my $ent = $doctype->get_general_entity_node ($_[1]);
170	unless ($ent) {
171	$r->manakai_set_read_only (1, 1);
172	return $r;
173	}
174
175	$self->strict_error_checking (0);
176	for my $c (@{$ent->child_nodes}) {
177	my $clone = $c->clone_node (1);
178	$r->append_child ($clone);
179	}
180	$r->manakai_expanded ($ent->has_replacement_tree);
181	$self->strict_error_checking ($orig_strict);
182	}
183	$r->manakai_set_read_only (1, 1);
184	return $r;
185	} # create_entity_reference
186
187	=head1 LICENSE
188
189	Copyright 2007 Wakaba <w@suika.fam.cx>
190
191	This program is free software; you can redistribute it and/or
192	modify it under the same terms as Perl itself.
193
194	=cut
195
196	1;
197	## $Date: 2007/06/17 13:37:40 $