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 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 has_attribute_ns ($$$) {
  my ($self, $nsuri, $ln) = @_;
  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 <w@suika.fam.cx>.

=head1 LICENSE

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

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

=cut

1;
# $Date: 2007/05/19 14:29:09 $
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			sub last_child ($) {
122			my $self = shift;
123			return @{$self->{child_nodes}} ? $self->{child_nodes}->[-1] : undef;
124			} # last_child
125
126			## NOTE: Only applied to Elements and Documents
127			sub previous_sibling ($) {
128			my $self = shift;
129			my $parent = $self->{parent_node};
130			return undef unless defined $parent;
131			my $r;
132			for (@{$parent->{child_nodes}}) {
133			if ($_ eq $self) {
134			return $r;
135			} else {
136			$r = $_;
137			}
138			}
139			return undef;
140			} # previous_sibling
141
142	wakaba	1.6	sub prefix ($;$) {
143			my $self = shift;
144			if (@_) {
145			$self->{prefix} = shift;
146			}
147			return $self->{prefix};
148			} # prefix
149
150	wakaba	1.1	sub ELEMENT_NODE () { 1 }
151			sub ATTRIBUTE_NODE () { 2 }
152			sub TEXT_NODE () { 3 }
153			sub CDATA_SECTION_NODE () { 4 }
154			sub ENTITY_REFERENCE_NODE () { 5 }
155			sub ENTITY_NODE () { 6 }
156			sub PROCESSING_INSTRUCTION_NODE () { 7 }
157			sub COMMENT_NODE () { 8 }
158			sub DOCUMENT_NODE () { 9 }
159			sub DOCUMENT_TYPE_NODE () { 10 }
160			sub DOCUMENT_FRAGMENT_NODE () { 11 }
161			sub NOTATION_NODE () { 12 }
162
163	wakaba	1.2	package Whatpm::NanoDOM::Document;
164			push our @ISA, 'Whatpm::NanoDOM::Node';
165	wakaba	1.1
166			sub new ($) {
167			my $self = shift->SUPER::new;
168			$self->{child_nodes} = [];
169			return $self;
170			} # new
171
172			## A manakai extension
173			sub manakai_append_text ($$) {
174			my $self = shift;
175			if (@{$self->{child_nodes}} and
176			$self->{child_nodes}->[-1]->node_type == 3) {
177			$self->{child_nodes}->[-1]->manakai_append_text (shift);
178			} else {
179			my $text = $self->create_text_node (shift);
180			$self->append_child ($text);
181			}
182			} # manakai_append_text
183
184			sub node_type () { 9 }
185
186			sub strict_error_checking {
187			return 0;
188			} # strict_error_checking
189
190			sub create_text_node ($$) {
191			shift;
192	wakaba	1.2	return Whatpm::NanoDOM::Text->new (shift);
193	wakaba	1.1	} # create_text_node
194
195			sub create_comment ($$) {
196			shift;
197	wakaba	1.2	return Whatpm::NanoDOM::Comment->new (shift);
198	wakaba	1.1	} # create_comment
199
200			## The second parameter only supports manakai extended way
201			## to specify qualified name - "[$prefix, $local_name]"
202			sub create_element_ns ($$$) {
203			my ($self, $nsuri, $qn) = @_;
204	wakaba	1.3	return Whatpm::NanoDOM::Element->new ($self, $nsuri, $qn->[0], $qn->[1]);
205	wakaba	1.1	} # create_element_ns
206
207			## A manakai extension
208			sub create_document_type_definition ($$) {
209			shift;
210	wakaba	1.2	return Whatpm::NanoDOM::DocumentType->new (shift);
211	wakaba	1.1	} # create_document_type_definition
212
213	wakaba	1.3	sub implementation ($) {
214			return 'Whatpm::NanoDOM::DOMImplementation';
215			} # implementation
216
217	wakaba	1.4	sub document_element ($) {
218			my $self = shift;
219			for (@{$self->child_nodes}) {
220			if ($_->node_type == 1) {
221			return $_;
222			}
223			}
224			return undef;
225			} # document_element
226
227	wakaba	1.2	package Whatpm::NanoDOM::Element;
228			push our @ISA, 'Whatpm::NanoDOM::Node';
229	wakaba	1.1
230	wakaba	1.3	sub new ($$$$$) {
231	wakaba	1.1	my $self = shift->SUPER::new;
232	wakaba	1.3	$self->{owner_document} = shift;
233			Scalar::Util::weaken ($self->{owner_document});
234	wakaba	1.1	$self->{namespace_uri} = shift;
235			$self->{prefix} = shift;
236			$self->{local_name} = shift;
237			$self->{attributes} = {};
238			$self->{child_nodes} = [];
239			return $self;
240			} # new
241
242	wakaba	1.3	sub owner_document ($) {
243			return shift->{owner_document};
244			} # owner_document
245
246	wakaba	1.1	sub clone_node ($$) {
247			my ($self, $deep) = @_; ## NOTE: Deep cloning is not supported
248			my $clone = bless {
249			namespace_uri => $self->{namespace_uri},
250			prefix => $self->{prefix},
251			local_name => $self->{local_name},
252			child_nodes => [],
253			}, ref $self;
254			for my $ns (keys %{$self->{attributes}}) {
255			for my $ln (keys %{$self->{attributes}->{$ns}}) {
256			my $attr = $self->{attributes}->{$ns}->{$ln};
257			$clone->{attributes}->{$ns}->{$ln} = bless {
258			namespace_uri => $attr->{namespace_uri},
259			prefix => $attr->{prefix},
260			local_name => $attr->{local_name},
261			value => $attr->{value},
262			}, ref $self->{attributes}->{$ns}->{$ln};
263			}
264			}
265			return $clone;
266			} # clone
267
268			## A manakai extension
269			sub manakai_append_text ($$) {
270			my $self = shift;
271			if (@{$self->{child_nodes}} and
272			$self->{child_nodes}->[-1]->node_type == 3) {
273			$self->{child_nodes}->[-1]->manakai_append_text (shift);
274			} else {
275	wakaba	1.2	my $text = Whatpm::NanoDOM::Text->new (shift);
276	wakaba	1.1	$self->append_child ($text);
277			}
278			} # manakai_append_text
279
280	wakaba	1.7	sub text_content ($) {
281			my $self = shift;
282			my $r = '';
283			for my $child (@{$self->child_nodes}) {
284			if ($child->can ('data')) {
285			$r .= $child->data;
286			} else {
287			$r .= $child->text_content;
288			}
289			}
290			return $r;
291			} # text_content
292
293	wakaba	1.1	sub attributes ($) {
294			my $self = shift;
295			my $r = [];
296			## Order MUST be stable
297			for my $ns (sort {$a cmp $b} keys %{$self->{attributes}}) {
298			for my $ln (sort {$a cmp $b} keys %{$self->{attributes}->{$ns}}) {
299			push @$r, $self->{attributes}->{$ns}->{$ln}
300			if defined $self->{attributes}->{$ns}->{$ln};
301			}
302			}
303			return $r;
304			} # attributes
305
306	wakaba	1.3	sub local_name ($) { # TODO: HTML5 case
307			return shift->{local_name};
308			} # local_name
309
310	wakaba	1.4	sub manakai_local_name ($) {
311			return shift->{local_name}; # no case fixing for HTML5
312			} # manakai_local_name
313
314	wakaba	1.3	sub namespace_uri ($) {
315			return shift->{namespace_uri};
316			} # namespace_uri
317
318	wakaba	1.4	sub manakai_element_type_match ($$$) {
319			my ($self, $nsuri, $ln) = @_;
320			if (defined $nsuri) {
321			if (defined $self->{namespace_uri} and $nsuri eq $self->{namespace_uri}) {
322			return ($ln eq $self->{local_name});
323			} else {
324			return 0;
325			}
326			} else {
327			if (not defined $self->{namespace_uri}) {
328			return ($ln eq $self->{local_name});
329			} else {
330			return 0;
331			}
332			}
333			} # manakai_element_type_match
334
335	wakaba	1.1	sub node_type { 1 }
336
337			## TODO: HTML5 capitalization
338			sub tag_name ($) {
339			my $self = shift;
340			if (defined $self->{prefix}) {
341			return $self->{prefix} . ':' . $self->{local_name};
342			} else {
343			return $self->{local_name};
344			}
345			} # tag_name
346
347			sub has_attribute_ns ($$$) {
348			my ($self, $nsuri, $ln) = @_;
349			return defined $self->{attributes}->{$nsuri}->{$ln};
350			} # has_attribute_ns
351
352			## The second parameter only supports manakai extended way
353			## to specify qualified name - "[$prefix, $local_name]"
354			sub set_attribute_ns ($$$$) {
355			my ($self, $nsuri, $qn, $value) = @_;
356			$self->{attributes}->{$nsuri}->{$qn->[1]}
357	wakaba	1.5	= Whatpm::NanoDOM::Attr->new ($self, $nsuri, $qn->[0], $qn->[1], $value);
358	wakaba	1.1	} # set_attribute_ns
359
360	wakaba	1.2	package Whatpm::NanoDOM::Attr;
361			push our @ISA, 'Whatpm::NanoDOM::Node';
362	wakaba	1.1
363	wakaba	1.5	sub new ($$$$$$) {
364	wakaba	1.1	my $self = shift->SUPER::new;
365	wakaba	1.5	$self->{owner_element} = shift;
366			Scalar::Util::weaken ($self->{owner_element});
367	wakaba	1.1	$self->{namespace_uri} = shift;
368			$self->{prefix} = shift;
369			$self->{local_name} = shift;
370			$self->{value} = shift;
371			return $self;
372			} # new
373
374	wakaba	1.5	sub namespace_uri ($) {
375			return shift->{namespace_uri};
376			} # namespace_uri
377
378			sub manakai_local_name ($) {
379			return shift->{local_name};
380			} # manakai_local_name
381
382	wakaba	1.1	sub node_type { 2 }
383
384			## TODO: HTML5 case stuff?
385			sub name ($) {
386			my $self = shift;
387			if (defined $self->{prefix}) {
388			return $self->{prefix} . ':' . $self->{local_name};
389			} else {
390			return $self->{local_name};
391			}
392			} # name
393
394			sub value ($) {
395			return shift->{value};
396			} # value
397
398	wakaba	1.5	sub owner_element ($) {
399			return shift->{owner_element};
400			} # owner_element
401
402	wakaba	1.2	package Whatpm::NanoDOM::CharacterData;
403			push our @ISA, 'Whatpm::NanoDOM::Node';
404	wakaba	1.1
405			sub new ($$) {
406			my $self = shift->SUPER::new;
407			$self->{data} = shift;
408			return $self;
409			} # new
410
411			## A manakai extension
412			sub manakai_append_text ($$) {
413			my ($self, $s) = @_;
414			$self->{data} .= $s;
415			} # manakai_append_text
416
417			sub data ($) {
418			return shift->{data};
419			} # data
420
421	wakaba	1.2	package Whatpm::NanoDOM::Text;
422			push our @ISA, 'Whatpm::NanoDOM::CharacterData';
423	wakaba	1.1
424			sub node_type () { 3 }
425
426	wakaba	1.2	package Whatpm::NanoDOM::Comment;
427			push our @ISA, 'Whatpm::NanoDOM::CharacterData';
428	wakaba	1.1
429			sub node_type () { 8 }
430
431	wakaba	1.2	package Whatpm::NanoDOM::DocumentType;
432			push our @ISA, 'Whatpm::NanoDOM::Node';
433	wakaba	1.1
434			sub new ($$) {
435			my $self = shift->SUPER::new;
436			$self->{name} = shift;
437			return $self;
438			} # new
439
440			sub node_type () { 10 }
441
442			sub name ($) {
443			return shift->{name};
444			} # name
445
446			=head1 SEE ALSO
447
448	wakaba	1.2	L<Whatpm::HTML>
449	wakaba	1.1
450			=head1 AUTHOR
451
452			Wakaba <w@suika.fam.cx>.
453
454			=head1 LICENSE
455
456			Copyright 2007 Wakaba <w@suika.fam.cx>
457
458			This library is free software; you can redistribute it
459			and/or modify it under the same terms as Perl itself.
460
461			=cut
462
463			1;
464	wakaba	1.7	# $Date: 2007/05/19 14:29:09 $