=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('<P ID="greeting">Hi!</P>');
say $dom->at('p[id]')->text;
-If XML processing instructions are found, the parser will automatically switch
-into XML mode and everything becomes case-sensitive.
+If an XML declaration is found, the parser will automatically switch into XML
+mode and everything becomes case-sensitive.
# XML semantics
my $dom = DOM::Tiny->new('<?xml version="1.0"?><P ID="greeting">Hi!</P>');
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");
$dom = $dom->append('<p>I ♥ DOM::Tiny!</p>');
-Append HTML/XML fragment to this node.
+Append HTML/XML fragment to this node (for all node types other than C<root>).
# "<div><h1>Test</h1><h2>123</h2></div>"
$dom->parse('<div><h1>Test</h1></div>')
my $result = $dom->at('div ~ p');
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.
+return it as a L<DOM::Tiny> object, or C<undef> if none could be found. 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');
my $namespace = $dom->namespace;
-Find this element's namespace or return C<undef> if none could be found.
+Find this element's namespace, or return C<undef> if none could be found.
# Find namespace for an element with namespace prefix
my $namespace = $dom->at('svg > svg\:circle')->namespace;
my $sibling = $dom->next;
-Return L<DOM::Tiny> object for next sibling element or C<undef> if there are no
-more siblings.
+Return L<DOM::Tiny> object for next sibling element, or C<undef> if there are
+no more siblings.
# "<h2>123</h2>"
$dom->parse('<div><h1>Test</h1><h2>123</h2></div>')->at('h1')->next;
my $sibling = $dom->next_node;
-Return L<DOM::Tiny> object for next sibling node or C<undef> if there are no
+Return L<DOM::Tiny> object for next sibling node, or C<undef> if there are no
more siblings.
# "456"
my $parent = $dom->parent;
-Return L<DOM::Tiny> object for parent of this node or C<undef> if this node has
-no parent.
+Return L<DOM::Tiny> object for parent of this node, or C<undef> if this node
+has no parent.
+
+ # "<b><i>Test</i></b>"
+ $dom->parse('<p><b><i>Test</i></b></p>')->at('i')->parent;
=head2 parse
$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 $dom = DOM::Tiny->new->xml(1)->parse('<foo>I ♥ DOM::Tiny!</foo>');
=head2 preceding
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;
$dom = $dom->prepend('<p>I ♥ DOM::Tiny!</p>');
-Prepend HTML/XML fragment to this node.
+Prepend HTML/XML fragment to this node (for all node types other than C<root>).
# "<div><h1>Test</h1><h2>123</h2></div>"
$dom->parse('<div><h2>123</h2></div>')
my $sibling = $dom->previous;
-Return L<DOM::Tiny> object for previous sibling element or C<undef> if there
+Return L<DOM::Tiny> object for previous sibling element, or C<undef> if there
are no more siblings.
# "<h1>Test</h1>"
my $sibling = $dom->previous_node;
-Return L<DOM::Tiny> object for previous sibling node or C<undef> if there are
+Return L<DOM::Tiny> object for previous sibling node, or C<undef> if there are
no more siblings.
# "123"
my $value = $dom->val;
Extract value from form element (such as C<button>, C<input>, C<option>,
-C<select> and C<textarea>) or return C<undef> if this element has no value. In
+C<select> and C<textarea>), or return C<undef> if this element has no value. In
the case of C<select> with C<multiple> attribute, find C<option> elements with
-C<selected> attribute and return an array reference with all values or C<undef>
-if none could be found.
+C<selected> attribute and return an array reference with all values, or
+C<undef> if none could be found.
# "a"
- $dom->parse('<input name="test" value="a">')->at('input')->val;
+ $dom->parse('<input name=test value=a>')->at('input')->val;
# "b"
$dom->parse('<textarea>b</textarea>')->at('textarea')->val;
$dom->parse('<select multiple><option selected>e</option></select>')
->at('select')->val->[0];
+ # "on"
+ $dom->parse('<input name=test type=checkbox>')->at('input')->val;
+
=head2 wrap
$dom = $dom->wrap('<div></div>');
-Wrap HTML/XML fragment around this node, placing it as the last child of the
-first innermost element.
+Wrap HTML/XML fragment around this node (for all node types other than C<root>),
+placing it as the last child of the first innermost element.
# "<p>123<b>Test</b></p>"
$dom->parse('<b>Test</b>')->at('b')->wrap('<p>123</p>')->root;
$dom = $dom->wrap_content('<div></div>');
-Wrap HTML/XML fragment around this node's content, placing it as the last
-children of the first innermost element.
+Wrap HTML/XML fragment around this node's content (for C<root> and C<tag>
+nodes), placing it as the last children of the first innermost element.
# "<p><b>123Test</b></p>"
$dom->parse('<p>Test<p>')->at('p')->wrap_content('<b>123</b>')->root;
$dom = $dom->xml($bool);
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">.
+auto detection based on XML declarations.
=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>
+Code and tests adapted from L<Mojo::DOM>, a lightweight DOM parser by the L<Mojolicious> team.
+
+=head1 CONTRIBUTORS
+
+=over
+
+=item Matt S Trout (mst)
+
+=back
+
=head1 COPYRIGHT AND LICENSE
-This software is Copyright (c) 2015 by Dan Book.
+Copyright (c) 2008-2015 Sebastian Riedel.
+
+Copyright (c) 2015 L</"AUTHOR"> and L</"CONTRIBUTORS"> for adaptation to standalone format.
This is free software, licensed under:
=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