Struct lol_html::Selector

pub struct Selector(/* private fields */);

Parsed CSS selector.

Parsed selector can be used for different element content handlers without a necessity to re-parse CSS selector string for each of them.

Example

The structure implements the FromStr trait, so it can be constructed through str’s parse method.

use lol_html::Selector;

let selector: Selector = "#foo".parse().unwrap();

Supported selector

Currently the rewriter supports the following CSS selectors:

Pattern	Represents
*	any element
E	any element of type E
E:nth-child(n)	an E element, the n-th child of its parent
E:first-child	an E element, first child of its parent
E:nth-of-type(n)	an E element, the n-th sibling of its type
E:first-of-type	an E element, first sibling of its type
E:not(s)	an E element that does not match either compound selector s
E.warning	an E element belonging to the class warning
E#myid	an E element with ID equal to "myid".
E[foo]	an E element with a foo attribute
E[foo="bar"]	an E element whose foo attribute value is exactly equal to "bar"
E[foo="bar" i]	an E element whose foo attribute value is exactly equal to any (ASCII-range) case-permutation of "bar"
E[foo="bar" s]	an E element whose foo attribute value is exactly and case-sensitively equal to "bar"
E[foo~="bar"]	an E element whose foo attribute value is a list of whitespace-separated values, one of which is exactly equal to "bar"
E[foo^="bar"]	an E element whose foo attribute value begins exactly with the string "bar"
E[foo$="bar"]	an E element whose foo attribute value ends exactly with the string "bar"
E[foo*="bar"]	an E element whose foo attribute value contains the substring "bar"
E[foo|=“en”]	an E element whose foo attribute value is a hyphen-separated list of values beginning with "en"
E F	an F element descendant of an E element
E > F	an F element child of an E element

Trait Implementations

impl Clone for Selector

fn clone(&self) -> Selector

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Selector

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

Formats the value using the given formatter.

impl FromStr for Selector

type Err = SelectorError

The associated error which can be returned from parsing.

fn from_str(selector: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.