Struct scraper::html::Html

pub struct Html {
    pub errors: Vec<Cow<'static, str>>,
    pub quirks_mode: QuirksMode,
    pub tree: Tree<Node>,
}

An HTML tree.

Parsing does not fail hard. Instead, the quirks_mode is set and errors are added to the errors field. The tree will still be populated as best as possible.

Implements the TreeSink trait from the html5ever crate, which allows HTML to be parsed.

Fields

errors: Vec<Cow<'static, str>>

Parse errors.

quirks_mode: QuirksMode

The quirks mode.

tree: Tree<Node>

The node tree.

Methods

impl Html

pub fn new_document() -> Self

Creates an empty HTML document.

pub fn new_fragment() -> Self

Creates an empty HTML fragment.

pub fn parse_document(document: &str) -> Self

Parses a string of HTML as a document.

pub fn parse_fragment(fragment: &str) -> Self

Parses a string of HTML as a fragment.

Important traits for Select<'a, 'b>

impl<'a, 'b> Iterator for Select<'a, 'b> type Item = ElementRef<'a>;

pub fn select<'a, 'b>(&'a self, selector: &'b Selector) -> Select<'a, 'b>

Returns an iterator over elements matching a selector.

Trait Implementations

impl TreeSink for Html

Note: does not support the <template> element.

type Output = Self

The overall result of parsing.

type Handle = NodeId

Handle is a reference to a DOM node. The tree builder requires that a Handle implements Clone to get another reference to the same node.

fn finish(self) -> Self

Consume this sink and return the overall result of parsing.

fn parse_error(&mut self, msg: Cow<'static, str>)

Signal a parse error.

fn set_quirks_mode(&mut self, mode: QuirksMode)

Set the document's quirks mode.

fn get_document(&mut self) -> Self::Handle

Get a handle to the Document node.

fn same_node(&self, x: &Self::Handle, y: &Self::Handle) -> bool

Do two handles refer to the same node?

fn elem_name(&self, target: &Self::Handle) -> ExpandedName

What is the name of this element?

fn create_element(     &mut self,     name: QualName,     attrs: Vec<Attribute>,     _flags: ElementFlags ) -> Self::Handle

Create an element.

fn create_comment(&mut self, text: StrTendril) -> Self::Handle

Create a comment node.

fn append_doctype_to_document(     &mut self,     name: StrTendril,     public_id: StrTendril,     system_id: StrTendril )

Append a DOCTYPE element to the Document node.

fn append(&mut self, parent: &Self::Handle, child: NodeOrText<Self::Handle>)

Append a node as the last child of the given node. If this would produce adjacent sibling text nodes, it should concatenate the text instead.

fn append_before_sibling(     &mut self,     sibling: &Self::Handle,     new_node: NodeOrText<Self::Handle> )

Append a node as the sibling immediately before the given node.

fn remove_from_parent(&mut self, target: &Self::Handle)

Detach the given node from its parent.

fn reparent_children(&mut self, node: &Self::Handle, new_parent: &Self::Handle)

Remove all the children from node and append them to new_parent.

fn add_attrs_if_missing(&mut self, target: &Self::Handle, attrs: Vec<Attribute>)

Add each attribute to the given element, if no attribute with that name already exists. The tree builder promises this will never be called with something else than an element.

fn get_template_contents(&mut self, target: &Self::Handle) -> Self::Handle

Get a handle to a template's template contents. The tree builder promises this will never be called with something else than a template element.

fn mark_script_already_started(&mut self, _node: &Self::Handle)

Mark a HTML <script> as "already started".

fn create_pi(&mut self, target: StrTendril, data: StrTendril) -> Self::Handle

Create a Processing Instruction node.

fn append_based_on_parent_node(     &mut self,     element: &Self::Handle,     prev_element: &Self::Handle,     child: NodeOrText<Self::Handle> )

When the insertion point is decided by the existence of a parent node of the element, we consider both possibilities and send the element which will be used if a parent node exists, along with the element to be used if there isn't one.

fn pop(&mut self, _node: &Self::Handle)

Indicate that a node was popped off the stack of open elements.

fn associate_with_form(     &mut self,     _target: &Self::Handle,     _form: &Self::Handle,     _nodes: (&Self::Handle, Option<&Self::Handle>) )

Associate the given form-associatable element with the form element

fn is_mathml_annotation_xml_integration_point(     &self,     _handle: &Self::Handle ) -> bool

Returns true if the adjusted current node is an HTML integration point and the token is a start tag.

fn set_current_line(&mut self, _line_number: u64)

Called whenever the line number changes.

fn complete_script(&mut self, _node: &Self::Handle) -> NextParserState

Indicate that a script element is complete.

impl Debug for Html

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Clone for Html

fn clone(&self) -> Html

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl PartialEq for Html

fn eq(&self, other: &Html) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Html) -> bool

This method tests for !=.

impl Eq for Html