Mojo::DOM - Minimalistic HTML5/XML DOM parser with CSS3 selectors
use Mojo::DOM;
# Parse
my $dom = Mojo::DOM->new('<div><p id="a">A</p><p id="b">B</p></div>');
# Find
my $b = $dom->at('#b');
say $b->text;
# Walk
say $dom->div->p->[0]->text;
say $dom->div->children('p')->first->{id};
# Iterate
$dom->find('p[id]')->each(sub { say shift->{id} });
# Loop
for my $e ($dom->find('p[id]')->each) {
say $e->text;
}
# Modify
$dom->div->p->[1]->append('<p id="c">C</p>');
# Render
say $dom;
Mojo::DOM is a minimalistic and relaxed HTML5/XML DOM parser with CSS3 selector support. It will even try to interpret broken XML, so you should not use it for validation.
Mojo::DOM defaults to HTML5 semantics, that means all tags and attributes are lowercased and selectors need to be lowercase as well.
my $dom = Mojo::DOM->new('<P ID="greeting">Hi!</P>');
say $dom->at('p')->text;
say $dom->p->{id};
If XML processing instructions are found, the parser will automatically switch into XML mode and everything becomes case sensitive.
my $dom = Mojo::DOM->new('<?xml version="1.0"?><P ID="greeting">Hi!</P>');
say $dom->at('P')->text;
say $dom->P->{ID};
XML detection can be also deactivated with the xml method.
# XML sematics $dom->xml(1); # HTML5 semantics $dom->xml(0);
Mojo::DOM implements the following methods.
my $dom = Mojo::DOM->new;
my $dom = Mojo::DOM->new('<foo bar="baz">test</foo>');
Construct a new Mojo::DOM object.
my $trimmed = $dom->all_text; my $untrimmed = $dom->all_text(0);
Extract all text content from DOM structure, smart whitespace trimming is activated by default. Note that the trim argument of this method is EXPERIMENTAL and might change without warning!
# "foo bar baz"
$dom->parse("<div>foo\n<p>bar</p>baz\n</div>")->div->all_text;
# "foo\nbarbaz\n"
$dom->parse("<div>foo\n<p>bar</p>baz\n</div>")->div->all_text(0);
$dom = $dom->append('<p>Hi!</p>');
Append to element.
# "<div><h1>A</h1><h2>B</h2></div>"
$dom->parse('<div><h1>A</h1></div>')->at('h1')->append('<h2>B</h2>');
$dom = $dom->append_content('<p>Hi!</p>');
Append to element content.
# "<div><h1>AB</h1></div>"
$dom->parse('<div><h1>A</h1></div>')->at('h1')->append_content('B');
my $result = $dom->at('html title');
Find a single element with CSS3 selectors. All selectors from Mojo::DOM::CSS are supported.
my $attrs = $dom->attrs;
my $foo = $dom->attrs('foo');
$dom = $dom->attrs({foo => 'bar'});
$dom = $dom->attrs(foo => 'bar');
Element attributes.
my $charset = $dom->charset;
$dom = $dom->charset('UTF-8');
Alias for "charset" in Mojo::DOM::HTML.
my $collection = $dom->children;
my $collection = $dom->children('div');
Return a Mojo::Collection object containing the children of this element, similar to find.
my $xml = $dom->content_xml;
Render content of this element to XML.
my $collection = $dom->find('html title');
Find elements with CSS3 selectors and return a Mojo::Collection object. All selectors from Mojo::DOM::CSS are supported.
# Find a specific element and extract information
my $id = $dom->find('div')->[23]->{id};
# Extract information from multiple elements
my @headers = $dom->find('h1, h2, h3')->map(sub { shift->text })->each;
my $namespace = $dom->namespace;
Find element namespace.
my $parent = $dom->parent;
Parent of element.
$dom = $dom->parse('<foo bar="baz">test</foo>');
Alias for "parse" in Mojo::DOM::HTML.
$dom = $dom->prepend('<p>Hi!</p>');
Prepend to element.
# "<div><h1>A</h1><h2>B</h2></div>"
$dom->parse('<div><h2>B</h2></div>')->at('h2')->prepend('<h1>A</h1>');
$dom = $dom->prepend_content('<p>Hi!</p>');
Prepend to element content.
# "<div><h2>AB</h2></div>"
$dom->parse('<div><h2>B</h2></div>')->at('h2')->prepend_content('A');
$dom = $dom->replace('<div>test</div>');
Replace elements.
# "<div><h2>B</h2></div>"
$dom->parse('<div><h1>A</h1></div>')->at('h1')->replace('<h2>B</h2>');
$dom = $dom->replace_content('test');
Replace element content.
# "<div><h1>B</h1></div>"
$dom->parse('<div><h1>A</h1></div>')->at('h1')->replace_content('B');
my $root = $dom->root;
Find root node.
my $trimmed = $dom->text; my $untrimmed = $dom->text(0);
Extract text content from element only (not including child elements), smart whitespace trimming is activated by default. Note that the trim argument of this method is EXPERIMENTAL and might change without warning!
# "foo baz"
$dom->parse("<div>foo\n<p>bar</p>baz\n</div>")->div->text;
# "foo\nbaz\n"
$dom->parse("<div>foo\n<p>bar</p>baz\n</div>")->div->text(0);
my $trimmed = $dom->text_after; my $untrimmed = $dom->text_after(0);
Extract text content immediately following element, smart whitespace trimming is activated by default. Note that this method is EXPERIMENTAL and might change without warning!
# "baz"
$dom->parse("<div>foo\n<p>bar</p>baz\n</div>")->div->p->text_after;
# "baz\n"
$dom->parse("<div>foo\n<p>bar</p>baz\n</div>")->div->p->text_after(0);
my $trimmed = $dom->text_before; my $untrimmed = $dom->text_before(0);
Extract text content immediately preceding element, smart whitespace trimming is activated by default. Note that this method is EXPERIMENTAL and might change without warning!
# "foo"
$dom->parse("<div>foo\n<p>bar</p>baz\n</div>")->div->p->text_before;
# "foo\n"
$dom->parse("<div>foo\n<p>bar</p>baz\n</div>")->div->p->text_before(0);
my $xml = $dom->to_xml;
Render DOM to XML.
my $tree = $dom->tree; $dom = $dom->tree(['root', ['text', 'lalala']]);
Alias for "tree" in Mojo::DOM::HTML.
my $type = $dom->type;
$dom = $dom->type('div');
Element type.
$dom->children->each(sub { say $_->type });
my $xml = $dom->xml; $dom = $dom->xml(1);
Alias for "xml" in Mojo::DOM::HTML. Note that this method is EXPERIMENTAL and might change without warning!
In addition to the methods above, many child elements are also automatically available as object methods, which return a Mojo::DOM or Mojo::Collection object, depending on number of children.
say $dom->div->text;
say $dom->div->[23]->text;
$dom->div->each(sub { say $_->text });
Direct hash access to element attributes is also possible.
say $dom->{foo};
say $dom->div->{id};
