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	wakaba	1.1	package Message::DOM::EntityReference;
2			use strict;
3	wakaba	1.5	our $VERSION=do{my @r=(q$Revision: 1.4 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r};
4	wakaba	1.1	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 ($$$) {
11			my $self = shift->SUPER::____new (shift);
12	wakaba	1.2	$$self->{node_name} = $_[0];
13	wakaba	1.3	$$self->{child_nodes} = [];
14	wakaba	1.1	return $self;
15			} # ____new
16
17			sub AUTOLOAD {
18			my $method_name = our $AUTOLOAD;
19			$method_name =~ s/.*:://;
20			return if $method_name eq 'DESTROY';
21
22			if ({
23			## Read-only attributes (trivial accessors)
24	wakaba	1.2	node_name => 1,
25	wakaba	1.1	}->{$method_name}) {
26			no strict 'refs';
27			eval qq{
28			sub $method_name (\$) {
29			if (\@_ > 1) {
30			require Carp;
31			Carp::croak (qq<Can't modify read-only attribute>);
32			}
33			return \${\$_[0]}->{$method_name};
34			}
35			};
36			goto &{ $AUTOLOAD };
37			} elsif ({
38	wakaba	1.4	## Read-write attributes (boolean, trivial accessors)
39			manakai_expanded => 1,
40			manakai_external => 1,
41	wakaba	1.1	}->{$method_name}) {
42			no strict 'refs';
43			eval qq{
44	wakaba	1.4	sub $method_name (\$;\$) {
45	wakaba	1.1	if (\@_ > 1) {
46	wakaba	1.4	if (\${\${\$_[0]}->{owner_document}}->{manakai_strict_error_checking} and
47			\${\$_[0]}->{manakai_read_only}) {
48			report Message::DOM::DOMException
49			-object => \$_[0],
50			-type => 'NO_MODIFICATION_ALLOWED_ERR',
51			-subtype => 'READ_ONLY_NODE_ERR';
52			}
53			if (\$_[1]) {
54			\${\$_[0]}->{$method_name} = 1;
55			} else {
56			delete \${\$_[0]}->{$method_name};
57			}
58	wakaba	1.1	}
59	wakaba	1.4	return \${\$_[0]}->{$method_name};
60	wakaba	1.1	}
61			};
62			goto &{ $AUTOLOAD };
63			} else {
64			require Carp;
65			Carp::croak (qq<Can't locate method "$AUTOLOAD">);
66			}
67			} # AUTOLOAD
68
69	wakaba	1.4	## \|Node\| attributes
70
71			sub base_uri ($) {
72			## NOTE: Same as \|CharacterData\|'s.
73	wakaba	1.1
74	wakaba	1.4	my $self = $_[0];
75			local $Error::Depth = $Error::Depth + 1;
76			my $pe = $$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	wakaba	1.2
92			sub node_name ($); # read-only trivial accessor
93
94	wakaba	1.4	sub node_type () { 5 } # ENTITY_REFERENCE_NODE
95
96			## \|EntityReference\| attributes
97
98			sub manakai_entity_base_uri ($;$) {
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 $self->base_uri;
121			}
122			} # manakai_entity_base_uri
123
124			sub manakai_expanded ($;$);
125	wakaba	1.2
126	wakaba	1.4	sub manakai_external ($;$);
127	wakaba	1.1
128			package Message::IF::EntityReference;
129
130			package Message::DOM::Document;
131
132			sub create_entity_reference ($$) {
133	wakaba	1.5	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	wakaba	1.1	} # create_entity_reference
186
187	wakaba	1.4	=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	wakaba	1.1	1;
197	wakaba	1.5	## $Date: 2007/06/17 13:37:40 $