# README

selector

The selector package implements CSS selectors for use with the parse trees produced by the html package.

It is based on andybalholm/cascadia commit 8919e381b2b9868b86bb29a833d893796a188f1f, with some API simplification.

Filter returns the nodes that match m.

MatchAll returns a slice of the nodes that match the selector, from n and its children.

MatchFirst returns the first node that matches s, from n and its children.

MustCompile is like ParseGroup, but panics instead of returning an error.

Parse parses a single selector, with support for pseudo-element.

ParseGroup parses a selector, or a group of selectors separated by commas.

Query returns the first node that matches m, from the descendants of n.

QueryAll returns a slice of all the nodes that match m, from the descendants of n.

Matcher is the interface for basic selector functionality.

Sel is the interface for all the functionality provided by selectors.

A SelectorGroup is a list of selectors, which matches if any of the individual selectors matches.

Specificity is the CSS specificity as defined in https://www.w3.org/TR/selectors/#specificity-rules with the convention Specificity = [A,B,C].