whatpm/Whatpm/NanoDOM.pm

=head1 NAME

Whatpm::NanoDOM - A Non-Conforming Implementation of DOM Subset

=head1 DESCRIPTION

The C<Whatpm::NanoDOM> module contains a non-conforming implementation
of a subset of DOM.  It is the intention that this module is
used only for the purpose of testing the C<Whatpm::HTML> module.

See source code if you would like to know what it does.

=cut

package Whatpm::NanoDOM;
use strict;

require Scalar::Util;

package Whatpm::NanoDOM::DOMImplementation;

sub create_document ($) {
  return Whatpm::NanoDOM::Document->new;
} # create_document

package Whatpm::NanoDOM::Node;

sub new ($) {
  my $class = shift;
  my $self = bless {}, $class;
  return $self;
} # new

sub is_equal_node ($$) {
  return shift eq shift;
} # is_equal_node

sub parent_node ($) {
  return shift->{parent_node};
} # parent_node

sub manakai_parent_element ($) {
  my $self = shift;
  my $parent = $self->{parent_node};
  while (defined $parent) {
    if ($parent->node_type == 1) {
      return $parent;
    } else {
      $parent = $parent->{parent_node};
    }
  }
  return undef;
} # manakai_parent_element

sub child_nodes ($) {
  return shift->{child_nodes} || [];
} # child_nodes

## NOTE: Only applied to Elements and Documents
sub append_child ($$) {
  my ($self, $new_child) = @_;
  if (defined $new_child->{parent_node}) {
    my $parent_list = $new_child->{parent_node}->{child_nodes};
    for (0..$#$parent_list) {
      if ($parent_list->[$_] eq $new_child) {
        splice @$parent_list, $_, 1;
      }
    }
  }
  push @{$self->{child_nodes}}, $new_child;
  $new_child->{parent_node} = $self;
  Scalar::Util::weaken ($new_child->{parent_node});
  return $new_child;
} # append_child

## NOTE: Only applied to Elements and Documents
sub insert_before ($$;$) {
  my ($self, $new_child, $ref_child) = @_;
  if (defined $new_child->{parent_node}) {
    my $parent_list = $new_child->{parent_node}->{child_nodes};
    for (0..$#$parent_list) {
      if ($parent_list->[$_] eq $new_child) {
        splice @$parent_list, $_, 1;
      }
    }
  }
  my $i = @{$self->{child_nodes}};
  if (defined $ref_child) {
    for (0..$#{$self->{child_nodes}}) {
      if ($self->{child_nodes}->[$_] eq $ref_child) {
        $i = $_;
        last;
      }
    }
  }
  splice @{$self->{child_nodes}}, $i, 0, $new_child;
  $new_child->{parent_node} = $self;
  Scalar::Util::weaken ($new_child->{parent_node});
  return $new_child;
} # insert_before

## NOTE: Only applied to Elements and Documents
sub remove_child ($$) {
  my ($self, $old_child) = @_;
  my $parent_list = $self->{child_nodes};
  for (0..$#$parent_list) {
    if ($parent_list->[$_] eq $old_child) {
      splice @$parent_list, $_, 1;
    }
  }
  delete $old_child->{parent_node};
  return $old_child;
} # remove_child

## NOTE: Only applied to Elements and Documents
sub has_child_nodes ($) {
  return @{shift->{child_nodes}} > 0;
} # has_child_nodes

## NOTE: Only applied to Elements and Documents
sub first_child ($) {
  my $self = shift;
  return $self->{child_nodes}->[0];
} # first_child

## NOTE: Only applied to Elements and Documents
sub last_child ($) {
  my $self = shift;
  return @{$self->{child_nodes}} ? $self->{child_nodes}->[-1] : undef;
} # last_child

## NOTE: Only applied to Elements and Documents
sub previous_sibling ($) {
  my $self = shift;
  my $parent = $self->{parent_node};
  return undef unless defined $parent;
  my $r;
  for (@{$parent->{child_nodes}}) {
    if ($_ eq $self) {
      return $r;
    } else {
      $r = $_;
    }
  }
  return undef;
} # previous_sibling

sub prefix ($;$) {
  my $self = shift;
  if (@_) {
    $self->{prefix} = shift;
  }
  return $self->{prefix};
} # prefix

sub ELEMENT_NODE () { 1 }
sub ATTRIBUTE_NODE () { 2 }
sub TEXT_NODE () { 3 }
sub CDATA_SECTION_NODE () { 4 }
sub ENTITY_REFERENCE_NODE () { 5 }
sub ENTITY_NODE () { 6 }
sub PROCESSING_INSTRUCTION_NODE () { 7 }
sub COMMENT_NODE () { 8 }
sub DOCUMENT_NODE () { 9 }
sub DOCUMENT_TYPE_NODE () { 10 }
sub DOCUMENT_FRAGMENT_NODE () { 11 }
sub NOTATION_NODE () { 12 }

package Whatpm::NanoDOM::Document;
push our @ISA, 'Whatpm::NanoDOM::Node';

sub new ($) {
  my $self = shift->SUPER::new;
  $self->{child_nodes} = [];
  return $self;
} # new

## A manakai extension
sub manakai_append_text ($$) {
  my $self = shift;
  if (@{$self->{child_nodes}} and
      $self->{child_nodes}->[-1]->node_type == 3) {
    $self->{child_nodes}->[-1]->manakai_append_text (shift);
  } else {
    my $text = $self->create_text_node (shift);
    $self->append_child ($text);
  }
} # manakai_append_text

sub node_type () { 9 }

sub strict_error_checking {
  return 0;
} # strict_error_checking

sub create_text_node ($$) {
  shift;
  return Whatpm::NanoDOM::Text->new (shift);
} # create_text_node

sub create_comment ($$) {
  shift;
  return Whatpm::NanoDOM::Comment->new (shift);
} # create_comment

## The second parameter only supports manakai extended way
## to specify qualified name - "[$prefix, $local_name]"
sub create_element_ns ($$$) {
  my ($self, $nsuri, $qn) = @_;
  return Whatpm::NanoDOM::Element->new ($self, $nsuri, $qn->[0], $qn->[1]);
} # create_element_ns

## A manakai extension
sub create_document_type_definition ($$) {
  shift;
  return Whatpm::NanoDOM::DocumentType->new (shift);
} # create_document_type_definition

sub implementation ($) {
  return 'Whatpm::NanoDOM::DOMImplementation';
} # implementation

sub document_element ($) {
  my $self = shift;
  for (@{$self->child_nodes}) {
    if ($_->node_type == 1) {
      return $_;
    }
  }
  return undef;
} # document_element

package Whatpm::NanoDOM::Element;
push our @ISA, 'Whatpm::NanoDOM::Node';

sub new ($$$$$) {
  my $self = shift->SUPER::new;
  $self->{owner_document} = shift;
  Scalar::Util::weaken ($self->{owner_document});
  $self->{namespace_uri} = shift;
  $self->{prefix} = shift;
  $self->{local_name} = shift;
  $self->{attributes} = {};
  $self->{child_nodes} = [];
  return $self;
} # new

sub owner_document ($) {
  return shift->{owner_document};
} # owner_document

sub clone_node ($$) {
  my ($self, $deep) = @_; ## NOTE: Deep cloning is not supported
  my $clone = bless {
    namespace_uri => $self->{namespace_uri},
    prefix => $self->{prefix},
    local_name => $self->{local_name},      
    child_nodes => [],
  }, ref $self;
  for my $ns (keys %{$self->{attributes}}) {
    for my $ln (keys %{$self->{attributes}->{$ns}}) {
      my $attr = $self->{attributes}->{$ns}->{$ln};
      $clone->{attributes}->{$ns}->{$ln} = bless {
        namespace_uri => $attr->{namespace_uri},
        prefix => $attr->{prefix},
        local_name => $attr->{local_name},
        value => $attr->{value},
      }, ref $self->{attributes}->{$ns}->{$ln};
    }
  }
  return $clone;
} # clone

## A manakai extension
sub manakai_append_text ($$) {
  my $self = shift;
  if (@{$self->{child_nodes}} and
      $self->{child_nodes}->[-1]->node_type == 3) {
    $self->{child_nodes}->[-1]->manakai_append_text (shift);
  } else {
    my $text = Whatpm::NanoDOM::Text->new (shift);
    $self->append_child ($text);
  }
} # manakai_append_text

sub text_content ($) {
  my $self = shift;
  my $r = '';
  for my $child (@{$self->child_nodes}) {
    if ($child->can ('data')) {
      $r .= $child->data;
    } else {
      $r .= $child->text_content;
    }
  }
  return $r;
} # text_content

sub attributes ($) {
  my $self = shift;
  my $r = [];
  ## Order MUST be stable
  for my $ns (sort {$a cmp $b} keys %{$self->{attributes}}) {
    for my $ln (sort {$a cmp $b} keys %{$self->{attributes}->{$ns}}) {
      push @$r, $self->{attributes}->{$ns}->{$ln}
        if defined $self->{attributes}->{$ns}->{$ln};
    }
  }
  return $r;
} # attributes

sub local_name ($) { # TODO: HTML5 case
  return shift->{local_name};
} # local_name

sub manakai_local_name ($) {
  return shift->{local_name}; # no case fixing for HTML5
} # manakai_local_name

sub namespace_uri ($) {
  return shift->{namespace_uri};
} # namespace_uri

sub manakai_element_type_match ($$$) {
  my ($self, $nsuri, $ln) = @_;
  if (defined $nsuri) {
    if (defined $self->{namespace_uri} and $nsuri eq $self->{namespace_uri}) {
      return ($ln eq $self->{local_name});
    } else {
      return 0;
    }
  } else {
    if (not defined $self->{namespace_uri}) {
      return ($ln eq $self->{local_name});
    } else {
      return 0;
    }
  }
} # manakai_element_type_match

sub node_type { 1 }

## TODO: HTML5 capitalization
sub tag_name ($) {
  my $self = shift;
  if (defined $self->{prefix}) {
    return $self->{prefix} . ':' . $self->{local_name};
  } else {
    return $self->{local_name};
  }
} # tag_name

sub get_attribute_ns ($$$) {
  my ($self, $nsuri, $ln) = @_;
  $nsuri = '' unless defined $nsuri;
  return defined $self->{attributes}->{$nsuri}->{$ln}
    ? $self->{attributes}->{$nsuri}->{$ln}->value : undef;
} # get_attribute_ns

sub has_attribute_ns ($$$) {
  my ($self, $nsuri, $ln) = @_;
  $nsuri = '' unless defined $nsuri;
  return defined $self->{attributes}->{$nsuri}->{$ln};
} # has_attribute_ns

## The second parameter only supports manakai extended way
## to specify qualified name - "[$prefix, $local_name]"
sub set_attribute_ns ($$$$) {
  my ($self, $nsuri, $qn, $value) = @_;
  $self->{attributes}->{$nsuri}->{$qn->[1]}
    = Whatpm::NanoDOM::Attr->new ($self, $nsuri, $qn->[0], $qn->[1], $value);
} # set_attribute_ns

package Whatpm::NanoDOM::Attr;
push our @ISA, 'Whatpm::NanoDOM::Node';

sub new ($$$$$$) {
  my $self = shift->SUPER::new;
  $self->{owner_element} = shift;
  Scalar::Util::weaken ($self->{owner_element});
  $self->{namespace_uri} = shift;
  $self->{prefix} = shift;
  $self->{local_name} = shift;
  $self->{value} = shift;
  return $self;
} # new

sub namespace_uri ($) {
  return shift->{namespace_uri};
} # namespace_uri

sub manakai_local_name ($) {
  return shift->{local_name};
} # manakai_local_name

sub node_type { 2 }

## TODO: HTML5 case stuff?
sub name ($) {
  my $self = shift;
  if (defined $self->{prefix}) {
    return $self->{prefix} . ':' . $self->{local_name};
  } else {
    return $self->{local_name};
  }
} # name

sub value ($) {
  return shift->{value};
} # value

sub owner_element ($) {
  return shift->{owner_element};
} # owner_element

package Whatpm::NanoDOM::CharacterData;
push our @ISA, 'Whatpm::NanoDOM::Node';

sub new ($$) {
  my $self = shift->SUPER::new;
  $self->{data} = shift;
  return $self;
} # new

## A manakai extension
sub manakai_append_text ($$) {
  my ($self, $s) = @_;
  $self->{data} .= $s;
} # manakai_append_text

sub data ($) {
  return shift->{data};
} # data

package Whatpm::NanoDOM::Text;
push our @ISA, 'Whatpm::NanoDOM::CharacterData';

sub node_type () { 3 }

package Whatpm::NanoDOM::Comment;
push our @ISA, 'Whatpm::NanoDOM::CharacterData';

sub node_type () { 8 }

package Whatpm::NanoDOM::DocumentType;
push our @ISA, 'Whatpm::NanoDOM::Node';

sub new ($$) {
  my $self = shift->SUPER::new;
  $self->{name} = shift;
  return $self;
} # new

sub node_type () { 10 }

sub name ($) {
  return shift->{name};
} # name

=head1 SEE ALSO

L<Whatpm::HTML>

=head1 AUTHOR

Wakaba <[email protected]>.

=head1 LICENSE

Copyright 2007 Wakaba <[email protected]>

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

=cut

1;
# $Date: 2007/05/26 12:33:04 $
1	wakaba	1.1	=head1 NAME
2
3	wakaba	1.2	Whatpm::NanoDOM - A Non-Conforming Implementation of DOM Subset
4	wakaba	1.1
5			=head1 DESCRIPTION
6
7	wakaba	1.2	The C<Whatpm::NanoDOM> module contains a non-conforming implementation
8	wakaba	1.1	of a subset of DOM. It is the intention that this module is
9	wakaba	1.2	used only for the purpose of testing the C<Whatpm::HTML> module.
10	wakaba	1.1
11			See source code if you would like to know what it does.
12
13			=cut
14
15	wakaba	1.2	package Whatpm::NanoDOM;
16	wakaba	1.1	use strict;
17
18	wakaba	1.3	require Scalar::Util;
19
20			package Whatpm::NanoDOM::DOMImplementation;
21
22			sub create_document ($) {
23			return Whatpm::NanoDOM::Document->new;
24			} # create_document
25
26	wakaba	1.2	package Whatpm::NanoDOM::Node;
27	wakaba	1.1
28			sub new ($) {
29			my $class = shift;
30			my $self = bless {}, $class;
31			return $self;
32			} # new
33
34			sub is_equal_node ($$) {
35			return shift eq shift;
36			} # is_equal_node
37
38			sub parent_node ($) {
39			return shift->{parent_node};
40			} # parent_node
41
42	wakaba	1.4	sub manakai_parent_element ($) {
43			my $self = shift;
44			my $parent = $self->{parent_node};
45			while (defined $parent) {
46			if ($parent->node_type == 1) {
47			return $parent;
48			} else {
49			$parent = $parent->{parent_node};
50			}
51			}
52			return undef;
53			} # manakai_parent_element
54
55	wakaba	1.1	sub child_nodes ($) {
56	wakaba	1.7	return shift->{child_nodes} \|\| [];
57	wakaba	1.1	} # child_nodes
58
59			## NOTE: Only applied to Elements and Documents
60			sub append_child ($$) {
61			my ($self, $new_child) = @_;
62			if (defined $new_child->{parent_node}) {
63			my $parent_list = $new_child->{parent_node}->{child_nodes};
64			for (0..$#$parent_list) {
65			if ($parent_list->[$_] eq $new_child) {
66			splice @$parent_list, $_, 1;
67			}
68			}
69			}
70			push @{$self->{child_nodes}}, $new_child;
71	wakaba	1.3	$new_child->{parent_node} = $self;
72			Scalar::Util::weaken ($new_child->{parent_node});
73	wakaba	1.1	return $new_child;
74			} # append_child
75
76			## NOTE: Only applied to Elements and Documents
77			sub insert_before ($$;$) {
78			my ($self, $new_child, $ref_child) = @_;
79			if (defined $new_child->{parent_node}) {
80			my $parent_list = $new_child->{parent_node}->{child_nodes};
81			for (0..$#$parent_list) {
82			if ($parent_list->[$_] eq $new_child) {
83			splice @$parent_list, $_, 1;
84			}
85			}
86			}
87			my $i = @{$self->{child_nodes}};
88			if (defined $ref_child) {
89			for (0..$#{$self->{child_nodes}}) {
90			if ($self->{child_nodes}->[$_] eq $ref_child) {
91			$i = $_;
92			last;
93			}
94			}
95			}
96			splice @{$self->{child_nodes}}, $i, 0, $new_child;
97	wakaba	1.5	$new_child->{parent_node} = $self;
98			Scalar::Util::weaken ($new_child->{parent_node});
99	wakaba	1.1	return $new_child;
100			} # insert_before
101
102			## NOTE: Only applied to Elements and Documents
103			sub remove_child ($$) {
104			my ($self, $old_child) = @_;
105			my $parent_list = $self->{child_nodes};
106			for (0..$#$parent_list) {
107			if ($parent_list->[$_] eq $old_child) {
108			splice @$parent_list, $_, 1;
109			}
110			}
111			delete $old_child->{parent_node};
112			return $old_child;
113			} # remove_child
114
115			## NOTE: Only applied to Elements and Documents
116			sub has_child_nodes ($) {
117			return @{shift->{child_nodes}} > 0;
118			} # has_child_nodes
119
120			## NOTE: Only applied to Elements and Documents
121	wakaba	1.8	sub first_child ($) {
122			my $self = shift;
123			return $self->{child_nodes}->[0];
124			} # first_child
125
126			## NOTE: Only applied to Elements and Documents
127	wakaba	1.1	sub last_child ($) {
128			my $self = shift;
129			return @{$self->{child_nodes}} ? $self->{child_nodes}->[-1] : undef;
130			} # last_child
131
132			## NOTE: Only applied to Elements and Documents
133			sub previous_sibling ($) {
134			my $self = shift;
135			my $parent = $self->{parent_node};
136			return undef unless defined $parent;
137			my $r;
138			for (@{$parent->{child_nodes}}) {
139			if ($_ eq $self) {
140			return $r;
141			} else {
142			$r = $_;
143			}
144			}
145			return undef;
146			} # previous_sibling
147
148	wakaba	1.6	sub prefix ($;$) {
149			my $self = shift;
150			if (@_) {
151			$self->{prefix} = shift;
152			}
153			return $self->{prefix};
154			} # prefix
155
156	wakaba	1.1	sub ELEMENT_NODE () { 1 }
157			sub ATTRIBUTE_NODE () { 2 }
158			sub TEXT_NODE () { 3 }
159			sub CDATA_SECTION_NODE () { 4 }
160			sub ENTITY_REFERENCE_NODE () { 5 }
161			sub ENTITY_NODE () { 6 }
162			sub PROCESSING_INSTRUCTION_NODE () { 7 }
163			sub COMMENT_NODE () { 8 }
164			sub DOCUMENT_NODE () { 9 }
165			sub DOCUMENT_TYPE_NODE () { 10 }
166			sub DOCUMENT_FRAGMENT_NODE () { 11 }
167			sub NOTATION_NODE () { 12 }
168
169	wakaba	1.2	package Whatpm::NanoDOM::Document;
170			push our @ISA, 'Whatpm::NanoDOM::Node';
171	wakaba	1.1
172			sub new ($) {
173			my $self = shift->SUPER::new;
174			$self->{child_nodes} = [];
175			return $self;
176			} # new
177
178			## A manakai extension
179			sub manakai_append_text ($$) {
180			my $self = shift;
181			if (@{$self->{child_nodes}} and
182			$self->{child_nodes}->[-1]->node_type == 3) {
183			$self->{child_nodes}->[-1]->manakai_append_text (shift);
184			} else {
185			my $text = $self->create_text_node (shift);
186			$self->append_child ($text);
187			}
188			} # manakai_append_text
189
190			sub node_type () { 9 }
191
192			sub strict_error_checking {
193			return 0;
194			} # strict_error_checking
195
196			sub create_text_node ($$) {
197			shift;
198	wakaba	1.2	return Whatpm::NanoDOM::Text->new (shift);
199	wakaba	1.1	} # create_text_node
200
201			sub create_comment ($$) {
202			shift;
203	wakaba	1.2	return Whatpm::NanoDOM::Comment->new (shift);
204	wakaba	1.1	} # create_comment
205
206			## The second parameter only supports manakai extended way
207			## to specify qualified name - "[$prefix, $local_name]"
208			sub create_element_ns ($$$) {
209			my ($self, $nsuri, $qn) = @_;
210	wakaba	1.3	return Whatpm::NanoDOM::Element->new ($self, $nsuri, $qn->[0], $qn->[1]);
211	wakaba	1.1	} # create_element_ns
212
213			## A manakai extension
214			sub create_document_type_definition ($$) {
215			shift;
216	wakaba	1.2	return Whatpm::NanoDOM::DocumentType->new (shift);
217	wakaba	1.1	} # create_document_type_definition
218
219	wakaba	1.3	sub implementation ($) {
220			return 'Whatpm::NanoDOM::DOMImplementation';
221			} # implementation
222
223	wakaba	1.4	sub document_element ($) {
224			my $self = shift;
225			for (@{$self->child_nodes}) {
226			if ($_->node_type == 1) {
227			return $_;
228			}
229			}
230			return undef;
231			} # document_element
232
233	wakaba	1.2	package Whatpm::NanoDOM::Element;
234			push our @ISA, 'Whatpm::NanoDOM::Node';
235	wakaba	1.1
236	wakaba	1.3	sub new ($$$$$) {
237	wakaba	1.1	my $self = shift->SUPER::new;
238	wakaba	1.3	$self->{owner_document} = shift;
239			Scalar::Util::weaken ($self->{owner_document});
240	wakaba	1.1	$self->{namespace_uri} = shift;
241			$self->{prefix} = shift;
242			$self->{local_name} = shift;
243			$self->{attributes} = {};
244			$self->{child_nodes} = [];
245			return $self;
246			} # new
247
248	wakaba	1.3	sub owner_document ($) {
249			return shift->{owner_document};
250			} # owner_document
251
252	wakaba	1.1	sub clone_node ($$) {
253			my ($self, $deep) = @_; ## NOTE: Deep cloning is not supported
254			my $clone = bless {
255			namespace_uri => $self->{namespace_uri},
256			prefix => $self->{prefix},
257			local_name => $self->{local_name},
258			child_nodes => [],
259			}, ref $self;
260			for my $ns (keys %{$self->{attributes}}) {
261			for my $ln (keys %{$self->{attributes}->{$ns}}) {
262			my $attr = $self->{attributes}->{$ns}->{$ln};
263			$clone->{attributes}->{$ns}->{$ln} = bless {
264			namespace_uri => $attr->{namespace_uri},
265			prefix => $attr->{prefix},
266			local_name => $attr->{local_name},
267			value => $attr->{value},
268			}, ref $self->{attributes}->{$ns}->{$ln};
269			}
270			}
271			return $clone;
272			} # clone
273
274			## A manakai extension
275			sub manakai_append_text ($$) {
276			my $self = shift;
277			if (@{$self->{child_nodes}} and
278			$self->{child_nodes}->[-1]->node_type == 3) {
279			$self->{child_nodes}->[-1]->manakai_append_text (shift);
280			} else {
281	wakaba	1.2	my $text = Whatpm::NanoDOM::Text->new (shift);
282	wakaba	1.1	$self->append_child ($text);
283			}
284			} # manakai_append_text
285
286	wakaba	1.7	sub text_content ($) {
287			my $self = shift;
288			my $r = '';
289			for my $child (@{$self->child_nodes}) {
290			if ($child->can ('data')) {
291			$r .= $child->data;
292			} else {
293			$r .= $child->text_content;
294			}
295			}
296			return $r;
297			} # text_content
298
299	wakaba	1.1	sub attributes ($) {
300			my $self = shift;
301			my $r = [];
302			## Order MUST be stable
303			for my $ns (sort {$a cmp $b} keys %{$self->{attributes}}) {
304			for my $ln (sort {$a cmp $b} keys %{$self->{attributes}->{$ns}}) {
305			push @$r, $self->{attributes}->{$ns}->{$ln}
306			if defined $self->{attributes}->{$ns}->{$ln};
307			}
308			}
309			return $r;
310			} # attributes
311
312	wakaba	1.3	sub local_name ($) { # TODO: HTML5 case
313			return shift->{local_name};
314			} # local_name
315
316	wakaba	1.4	sub manakai_local_name ($) {
317			return shift->{local_name}; # no case fixing for HTML5
318			} # manakai_local_name
319
320	wakaba	1.3	sub namespace_uri ($) {
321			return shift->{namespace_uri};
322			} # namespace_uri
323
324	wakaba	1.4	sub manakai_element_type_match ($$$) {
325			my ($self, $nsuri, $ln) = @_;
326			if (defined $nsuri) {
327			if (defined $self->{namespace_uri} and $nsuri eq $self->{namespace_uri}) {
328			return ($ln eq $self->{local_name});
329			} else {
330			return 0;
331			}
332			} else {
333			if (not defined $self->{namespace_uri}) {
334			return ($ln eq $self->{local_name});
335			} else {
336			return 0;
337			}
338			}
339			} # manakai_element_type_match
340
341	wakaba	1.1	sub node_type { 1 }
342
343			## TODO: HTML5 capitalization
344			sub tag_name ($) {
345			my $self = shift;
346			if (defined $self->{prefix}) {
347			return $self->{prefix} . ':' . $self->{local_name};
348			} else {
349			return $self->{local_name};
350			}
351			} # tag_name
352
353	wakaba	1.8	sub get_attribute_ns ($$$) {
354			my ($self, $nsuri, $ln) = @_;
355			$nsuri = '' unless defined $nsuri;
356			return defined $self->{attributes}->{$nsuri}->{$ln}
357			? $self->{attributes}->{$nsuri}->{$ln}->value : undef;
358			} # get_attribute_ns
359
360	wakaba	1.1	sub has_attribute_ns ($$$) {
361			my ($self, $nsuri, $ln) = @_;
362	wakaba	1.8	$nsuri = '' unless defined $nsuri;
363	wakaba	1.1	return defined $self->{attributes}->{$nsuri}->{$ln};
364			} # has_attribute_ns
365
366			## The second parameter only supports manakai extended way
367			## to specify qualified name - "[$prefix, $local_name]"
368			sub set_attribute_ns ($$$$) {
369			my ($self, $nsuri, $qn, $value) = @_;
370			$self->{attributes}->{$nsuri}->{$qn->[1]}
371	wakaba	1.5	= Whatpm::NanoDOM::Attr->new ($self, $nsuri, $qn->[0], $qn->[1], $value);
372	wakaba	1.1	} # set_attribute_ns
373
374	wakaba	1.2	package Whatpm::NanoDOM::Attr;
375			push our @ISA, 'Whatpm::NanoDOM::Node';
376	wakaba	1.1
377	wakaba	1.5	sub new ($$$$$$) {
378	wakaba	1.1	my $self = shift->SUPER::new;
379	wakaba	1.5	$self->{owner_element} = shift;
380			Scalar::Util::weaken ($self->{owner_element});
381	wakaba	1.1	$self->{namespace_uri} = shift;
382			$self->{prefix} = shift;
383			$self->{local_name} = shift;
384			$self->{value} = shift;
385			return $self;
386			} # new
387
388	wakaba	1.5	sub namespace_uri ($) {
389			return shift->{namespace_uri};
390			} # namespace_uri
391
392			sub manakai_local_name ($) {
393			return shift->{local_name};
394			} # manakai_local_name
395
396	wakaba	1.1	sub node_type { 2 }
397
398			## TODO: HTML5 case stuff?
399			sub name ($) {
400			my $self = shift;
401			if (defined $self->{prefix}) {
402			return $self->{prefix} . ':' . $self->{local_name};
403			} else {
404			return $self->{local_name};
405			}
406			} # name
407
408			sub value ($) {
409			return shift->{value};
410			} # value
411
412	wakaba	1.5	sub owner_element ($) {
413			return shift->{owner_element};
414			} # owner_element
415
416	wakaba	1.2	package Whatpm::NanoDOM::CharacterData;
417			push our @ISA, 'Whatpm::NanoDOM::Node';
418	wakaba	1.1
419			sub new ($$) {
420			my $self = shift->SUPER::new;
421			$self->{data} = shift;
422			return $self;
423			} # new
424
425			## A manakai extension
426			sub manakai_append_text ($$) {
427			my ($self, $s) = @_;
428			$self->{data} .= $s;
429			} # manakai_append_text
430
431			sub data ($) {
432			return shift->{data};
433			} # data
434
435	wakaba	1.2	package Whatpm::NanoDOM::Text;
436			push our @ISA, 'Whatpm::NanoDOM::CharacterData';
437	wakaba	1.1
438			sub node_type () { 3 }
439
440	wakaba	1.2	package Whatpm::NanoDOM::Comment;
441			push our @ISA, 'Whatpm::NanoDOM::CharacterData';
442	wakaba	1.1
443			sub node_type () { 8 }
444
445	wakaba	1.2	package Whatpm::NanoDOM::DocumentType;
446			push our @ISA, 'Whatpm::NanoDOM::Node';
447	wakaba	1.1
448			sub new ($$) {
449			my $self = shift->SUPER::new;
450			$self->{name} = shift;
451			return $self;
452			} # new
453
454			sub node_type () { 10 }
455
456			sub name ($) {
457			return shift->{name};
458			} # name
459
460			=head1 SEE ALSO
461
462	wakaba	1.2	L<Whatpm::HTML>
463	wakaba	1.1
464			=head1 AUTHOR
465
466			Wakaba <[email protected]>.
467
468			=head1 LICENSE
469
470			Copyright 2007 Wakaba <[email protected]>
471
472			This library is free software; you can redistribute it
473			and/or modify it under the same terms as Perl itself.
474
475			=cut
476
477			1;
478	wakaba	1.8	# $Date: 2007/05/26 12:33:04 $