use Carp 'croak';
use DOM::Tiny::_Collection;
-use DOM::Tiny::CSS;
-use DOM::Tiny::HTML;
+use DOM::Tiny::_CSS;
+use DOM::Tiny::_HTML;
use Scalar::Util qw(blessed weaken);
-our $VERSION = '0.001';
+our $VERSION = '0.003';
sub new {
my $class = shift;
- my $self = bless \DOM::Tiny::HTML->new, ref $class || $class;
+ my $self = bless \DOM::Tiny::_HTML->new, ref $class || $class;
return @_ ? $self->parse(@_) : $self;
}
my $type = $self->type;
if ($type eq 'root' || $type eq 'tag') {
return $self->_content(0, 1, @_) if @_;
- my $html = DOM::Tiny::HTML->new(xml => $self->xml);
+ my $html = DOM::Tiny::_HTML->new(xml => $self->xml);
return join '', map { $html->tree($_)->render } _nodes($self->tree);
}
return $self;
}
-sub tap { shift->DOM::Tiny::_Collection::tap(@_) }
+sub tap { DOM::Tiny::_Collection::tap(@_) }
sub text { shift->_all_text(0, @_) }
my $self = shift;
# "option"
- return $self->{value} // $self->text if (my $tag = $self->tag) eq 'option';
+ return defined($self->{value}) ? $self->{value} : $self->text
+ if (my $tag = $self->tag) eq 'option';
# "textarea", "input" or "button"
return $tag eq 'textarea' ? $self->text : $self->{value} if $tag ne 'select';
sub _ancestors {
my ($self, $root) = @_;
- return unless my $tree = $self->_parent;
+ return () unless my $tree = $self->_parent;
my @ancestors;
do { push @ancestors, $tree }
while ($tree->[0] eq 'tag') && ($tree = $tree->[3]);
return $self;
}
-sub _css { DOM::Tiny::CSS->new(tree => shift->tree) }
+sub _css { DOM::Tiny::_CSS->new(tree => shift->tree) }
sub _delegate {
my ($self, $method) = (shift, shift);
sub _maybe { $_[1] ? $_[0]->_build($_[1], $_[0]->xml) : undef }
sub _nodes {
- return unless my $tree = shift;
+ return () unless my $tree = shift;
my @nodes = @$tree[_start($tree) .. $#$tree];
return shift() ? grep { $_->[0] eq 'tag' } @nodes : @nodes;
}
sub _parent { $_[0]->tree->[$_[0]->type eq 'tag' ? 3 : 2] }
-sub _parse { DOM::Tiny::HTML->new(xml => shift->xml)->parse(shift)->tree }
+sub _parse { DOM::Tiny::_HTML->new(xml => shift->xml)->parse(shift)->tree }
sub _replace {
my ($self, $parent, $child, @nodes) = @_;
=encoding utf8
-=for Pod::Coverage TO_JSON
-
=head1 NAME
DOM::Tiny - Minimalistic HTML/XML DOM parser with CSS selectors
=head1 DESCRIPTION
-L<DOM::Tiny> is a minimalistic and relaxed pure-perl HTML/XML DOM parser with
-support for the L<HTML Living Standard|https://html.spec.whatwg.org/> and
-L<CSS3 selectors|http://www.w3.org/TR/selectors/> based on L<Mojo::DOM>. It
-will even try to interpret broken HTML and XML, so you should not use it for
+L<DOM::Tiny> is a minimalistic and relaxed pure-perl HTML/XML DOM parser based
+on L<Mojo::DOM>. It supports the L<HTML Living Standard|https://html.spec.whatwg.org/>
+and L<Extensible Markup Language (XML) 1.0|http://www.w3.org/TR/xml/>, and
+matching based on L<CSS3 selectors|http://www.w3.org/TR/selectors/>. It will
+even try to interpret broken HTML and XML, so you should not use it for
validation.
=head1 NODES AND ELEMENTS
my $dom = DOM::Tiny->new->xml(0)->parse('<P ID="greeting">Hi!</P>');
say $dom->at('p[id]')->text;
+=head1 SELECTORS
+
+L<DOM::Tiny> uses a CSS selector engine based on L<Mojo::DOM::CSS>. All CSS
+selectors that make sense for a standalone parser are supported.
+
+=over
+
+=item Z<>*
+
+Any element.
+
+ my $all = $dom->find('*');
+
+=item E
+
+An element of type C<E>.
+
+ my $title = $dom->at('title');
+
+=item E[foo]
+
+An C<E> element with a C<foo> attribute.
+
+ my $links = $dom->find('a[href]');
+
+=item E[foo="bar"]
+
+An C<E> element whose C<foo> attribute value is exactly equal to C<bar>.
+
+ my $case_sensitive = $dom->find('input[type="hidden"]');
+ my $case_sensitive = $dom->find('input[type=hidden]');
+
+=item E[foo="bar" i]
+
+An C<E> element whose C<foo> attribute value is exactly equal to any
+(ASCII-range) case-permutation of C<bar>. Note that this selector is
+EXPERIMENTAL and might change without warning!
+
+ my $case_insensitive = $dom->find('input[type="hidden" i]');
+ my $case_insensitive = $dom->find('input[type=hidden i]');
+ my $case_insensitive = $dom->find('input[class~="foo" i]');
+
+This selector is part of
+L<Selectors Level 4|http://dev.w3.org/csswg/selectors-4>, which is still a work
+in progress.
+
+=item E[foo~="bar"]
+
+An C<E> element whose C<foo> attribute value is a list of whitespace-separated
+values, one of which is exactly equal to C<bar>.
+
+ my $foo = $dom->find('input[class~="foo"]');
+ my $foo = $dom->find('input[class~=foo]');
+
+=item E[foo^="bar"]
+
+An C<E> element whose C<foo> attribute value begins exactly with the string
+C<bar>.
+
+ my $begins_with = $dom->find('input[name^="f"]');
+ my $begins_with = $dom->find('input[name^=f]');
+
+=item E[foo$="bar"]
+
+An C<E> element whose C<foo> attribute value ends exactly with the string
+C<bar>.
+
+ my $ends_with = $dom->find('input[name$="o"]');
+ my $ends_with = $dom->find('input[name$=o]');
+
+=item E[foo*="bar"]
+
+An C<E> element whose C<foo> attribute value contains the substring C<bar>.
+
+ my $contains = $dom->find('input[name*="fo"]');
+ my $contains = $dom->find('input[name*=fo]');
+
+=item E:root
+
+An C<E> element, root of the document.
+
+ my $root = $dom->at(':root');
+
+=item E:nth-child(n)
+
+An C<E> element, the C<n-th> child of its parent.
+
+ my $third = $dom->find('div:nth-child(3)');
+ my $odd = $dom->find('div:nth-child(odd)');
+ my $even = $dom->find('div:nth-child(even)');
+ my $top3 = $dom->find('div:nth-child(-n+3)');
+
+=item E:nth-last-child(n)
+
+An C<E> element, the C<n-th> child of its parent, counting from the last one.
+
+ my $third = $dom->find('div:nth-last-child(3)');
+ my $odd = $dom->find('div:nth-last-child(odd)');
+ my $even = $dom->find('div:nth-last-child(even)');
+ my $bottom3 = $dom->find('div:nth-last-child(-n+3)');
+
+=item E:nth-of-type(n)
+
+An C<E> element, the C<n-th> sibling of its type.
+
+ my $third = $dom->find('div:nth-of-type(3)');
+ my $odd = $dom->find('div:nth-of-type(odd)');
+ my $even = $dom->find('div:nth-of-type(even)');
+ my $top3 = $dom->find('div:nth-of-type(-n+3)');
+
+=item E:nth-last-of-type(n)
+
+An C<E> element, the C<n-th> sibling of its type, counting from the last one.
+
+ my $third = $dom->find('div:nth-last-of-type(3)');
+ my $odd = $dom->find('div:nth-last-of-type(odd)');
+ my $even = $dom->find('div:nth-last-of-type(even)');
+ my $bottom3 = $dom->find('div:nth-last-of-type(-n+3)');
+
+=item E:first-child
+
+An C<E> element, first child of its parent.
+
+ my $first = $dom->find('div p:first-child');
+
+=item E:last-child
+
+An C<E> element, last child of its parent.
+
+ my $last = $dom->find('div p:last-child');
+
+=item E:first-of-type
+
+An C<E> element, first sibling of its type.
+
+ my $first = $dom->find('div p:first-of-type');
+
+=item E:last-of-type
+
+An C<E> element, last sibling of its type.
+
+ my $last = $dom->find('div p:last-of-type');
+
+=item E:only-child
+
+An C<E> element, only child of its parent.
+
+ my $lonely = $dom->find('div p:only-child');
+
+=item E:only-of-type
+
+An C<E> element, only sibling of its type.
+
+ my $lonely = $dom->find('div p:only-of-type');
+
+=item E:empty
+
+An C<E> element that has no children (including text nodes).
+
+ my $empty = $dom->find(':empty');
+
+=item E:checked
+
+A user interface element C<E> which is checked (for instance a radio-button or
+checkbox).
+
+ my $input = $dom->find(':checked');
+
+=item E.warning
+
+An C<E> element whose class is "warning".
+
+ my $warning = $dom->find('div.warning');
+
+=item E#myid
+
+An C<E> element with C<ID> equal to "myid".
+
+ my $foo = $dom->at('div#foo');
+
+=item E:not(s)
+
+An C<E> element that does not match simple selector C<s>.
+
+ my $others = $dom->find('div p:not(:first-child)');
+
+=item E F
+
+An C<F> element descendant of an C<E> element.
+
+ my $headlines = $dom->find('div h1');
+
+=item E E<gt> F
+
+An C<F> element child of an C<E> element.
+
+ my $headlines = $dom->find('html > body > div > h1');
+
+=item E + F
+
+An C<F> element immediately preceded by an C<E> element.
+
+ my $second = $dom->find('h1 + h2');
+
+=item E ~ F
+
+An C<F> element preceded by an C<E> element.
+
+ my $second = $dom->find('h1 ~ h2');
+
+=item E, F, G
+
+Elements of type C<E>, C<F> and C<G>.
+
+ my $headlines = $dom->find('h1, h2, h3');
+
+=item E[foo=bar][bar=baz]
+
+An C<E> element whose attributes match all following attribute selectors.
+
+ my $links = $dom->find('a[foo^=b][foo$=ar]');
+
+=back
+
+=head1 OPERATORS
+
+L<DOM::Tiny> overloads the following operators.
+
+=head2 array
+
+ my @nodes = @$dom;
+
+Alias for L</"child_nodes">.
+
+ # "<!-- Test -->"
+ $dom->parse('<!-- Test --><b>123</b>')->[0];
+
+=head2 bool
+
+ my $bool = !!$dom;
+
+Always true.
+
+=head2 hash
+
+ my %attrs = %$dom;
+
+Alias for L</"attr">.
+
+ # "test"
+ $dom->parse('<div id="test">Test</div>')->at('div')->{id};
+
+=head2 stringify
+
+ my $str = "$dom";
+
+Alias for L</"to_string">.
+
=head1 METHODS
L<DOM::Tiny> implements the following methods.
my $collection = $dom->ancestors('div ~ p');
Find all ancestor elements of this node matching the CSS selector and return a
-L<DOM::Tiny::Collection> object containing these elements as L<DOM::Tiny>
-objects. All selectors from L<DOM::Tiny::CSS/"SELECTORS"> are supported.
+L<collection|/"COLLECTION METHODS"> containing these elements as L<DOM::Tiny>
+objects. All selectors listed in L</"SELECTORS"> are supported.
# List tag names of ancestor elements
say $dom->ancestors->map('tag')->join("\n");
Find first descendant element of this element matching the CSS selector and
return it as a L<DOM::Tiny> object or return C<undef> if none could be found.
-All selectors from L<DOM::Tiny::CSS/"SELECTORS"> are supported.
+All selectors listed in L</"SELECTORS"> are supported.
# Find first element with "svg" namespace definition
my $namespace = $dom->at('[xmlns\:svg]')->{'xmlns:svg'};
my $collection = $dom->child_nodes;
-Return a L<DOM::Tiny::Collection> object containing all child nodes of this
+Return a L<collection|/"COLLECTION METHODS"> containing all child nodes of this
element as L<DOM::Tiny> objects.
# "<p><b>123</b></p>"
my $collection = $dom->children('div ~ p');
Find all child elements of this element matching the CSS selector and return a
-L<DOM::Tiny::Collection> object containing these elements as L<DOM::Tiny>
-objects. All selectors from L<DOM::Tiny::CSS/"SELECTORS"> are supported.
+L<collection|/"COLLECTION METHODS"> containing these elements as L<DOM::Tiny>
+objects. All selectors listed in L</"SELECTORS"> are supported.
# Show tag name of random child element
say $dom->children->shuffle->first->tag;
my $collection = $dom->descendant_nodes;
-Return a L<DOM::Tiny::Collection> object containing all descendant nodes of
+Return a L<collection|/"COLLECTION METHODS"> containing all descendant nodes of
this element as L<DOM::Tiny> objects.
# "<p><b>123</b></p>"
my $collection = $dom->find('div ~ p');
Find all descendant elements of this element matching the CSS selector and
-return a L<DOM::Tiny::Collection> object containing these elements as
-L<DOM::Tiny> objects. All selectors from L<DOM::Tiny::CSS/"SELECTORS"> are
-supported.
+return a L<collection|/"COLLECTION METHODS"> containing these elements as
+L<DOM::Tiny> objects. All selectors listed in L</"SELECTORS"> are supported.
# Find a specific element and extract information
my $id = $dom->find('div')->[23]{id};
my $collection = $dom->following('div ~ p');
Find all sibling elements after this node matching the CSS selector and return
-a L<DOM::Tiny::Collection> object containing these elements as L<DOM::Tiny>
-objects. All selectors from L<DOM::Tiny::CSS/"SELECTORS"> are supported.
+a L<collection|/"COLLECTION METHODS"> containing these elements as L<DOM::Tiny>
+objects. All selectors listen in L</"SELECTORS"> are supported.
# List tags of sibling elements after this node
say $dom->following->map('tag')->join("\n");
my $collection = $dom->following_nodes;
-Return a L<DOM::Tiny::Collection> object containing all sibling nodes after
+Return a L<collection|/"COLLECTION METHODS"> containing all sibling nodes after
this node as L<DOM::Tiny> objects.
# "C"
my $bool = $dom->matches('div ~ p');
-Check if this element matches the CSS selector. All selectors from
-L<DOM::Tiny::CSS/"SELECTORS"> are supported.
+Check if this element matches the CSS selector. All selectors listed in
+L</"SELECTORS"> are supported.
# True
$dom->parse('<p class="a">A</p>')->at('p')->matches('.a');
$dom = $dom->parse('<foo bar="baz">I ♥ DOM::Tiny!</foo>');
-Parse HTML/XML fragment with L<DOM::Tiny::HTML>.
+Parse HTML/XML fragment.
# Parse XML
my $dom = DOM::Tiny->new->xml(1)->parse($xml);
my $collection = $dom->preceding('div ~ p');
Find all sibling elements before this node matching the CSS selector and return
-a L<DOM::Tiny::Collection> object containing these elements as L<DOM::Tiny>
-objects. All selectors from L<DOM::Tiny::CSS/"SELECTORS"> are supported.
+a L<collection|/"COLLECTION METHODS"> containing these elements as L<DOM::Tiny>
+objects. All selectors listed in L</"SELECTORS"> are supported.
# List tags of sibling elements before this node
say $dom->preceding->map('tag')->join("\n");
my $collection = $dom->preceding_nodes;
-Return a L<DOM::Tiny::Collection> object containing all sibling nodes before
-this node as L<DOM::Tiny> objects.
+Return a L<collection|/"COLLECTION METHODS"> containing all sibling nodes
+before this node as L<DOM::Tiny> objects.
# "A"
$dom->parse('A<!-- B --><p>C</p>')->at('p')->preceding_nodes->first->content;
Disable HTML semantics in parser and activate case-sensitivity, defaults to
auto detection based on processing instructions.
-=head1 OPERATORS
-
-L<DOM::Tiny> overloads the following operators.
-
-=head2 array
-
- my @nodes = @$dom;
-
-Alias for L</"child_nodes">.
-
- # "<!-- Test -->"
- $dom->parse('<!-- Test --><b>123</b>')->[0];
-
-=head2 bool
-
- my $bool = !!$dom;
-
-Always true.
-
-=head2 hash
-
- my %attrs = %$dom;
-
-Alias for L</"attr">.
-
- # "test"
- $dom->parse('<div id="test">Test</div>')->at('div')->{id};
-
-=head2 stringify
-
- my $str = "$dom";
-
-Alias for L</"to_string">.
-
=head1 COLLECTION METHODS
-Some L<DOM::Tiny> methods return an array-based collection object, which can
-either be accessed directly as an array reference, or with the following
-methods.
+Some L<DOM::Tiny> methods return an array-based collection object based on
+L<Mojo::Collection>, which can either be accessed directly as an array
+reference, or with the following methods.
# Chain methods
$collection->map(sub { ucfirst })->shuffle->each(sub {
# Longer version
my $first = $collection->first(sub { $_->$method(@args) });
- # Find first value that contains the word "dom"
- my $interesting = $collection->first(qr/dom/i);
+ # Find first value that contains the word "tiny"
+ my $interesting = $collection->first(qr/tiny/i);
# Find first value that is greater than 5
my $greater = $collection->first(sub { $_ > 5 });
# Longer version
my $new = $collection->grep(sub { $_->$method(@args) });
- # Find all values that contain the word "dom"
- my $interesting = $collection->grep(qr/dom/i);
+ # Find all values that contain the word "tiny"
+ my $interesting = $collection->grep(qr/tiny/i);
# Find all values that are greater than 5
my $greater = $collection->grep(sub { $_ > 5 });
# Longer version
my $new = $collection->map(sub { $_->$method(@args) });
- # Append the word "dom" to all values
- my $domified = $collection->map(sub { $_ . 'dom' });
+ # Append the word "tiny" to all values
+ my $domified = $collection->map(sub { $_ . 'tiny' });
=head2 reduce
Dan Book <dbook@cpan.org>
+=head1 CONTRIBUTORS
+
+=over
+
+=item Matt S Trout (mst)
+
+=back
+
=head1 COPYRIGHT AND LICENSE
This software is Copyright (c) 2015 by Dan Book.
=head1 SEE ALSO
-L<Mojo::DOM>, L<XML::LibXML>, L<XML::Twig>, L<HTML::TreeBuilder>, L<XML::Smart>
+L<Mojo::DOM>, L<HTML::TreeBuilder>, L<XML::LibXML>, L<XML::Twig>, L<XML::Smart>
+
+=for Pod::Coverage TO_JSON
+
+=cut
projects / catagits/DOM-Tiny.git / blobdiff