Function Query

query.go:64–70

Query runs the given XPath expression against the given html.Node and returns the first matching html.Node, or nil if no matches are found. Returns an error if the expression `expr` cannot be parsed.

(top *html.Node, expr string)

//
// Returns an error if the expression `expr` cannot be parsed.
func Query(top *html.Node, expr string) (*html.Node, error) {
	exp, err := getQuery(expr)
	if err != nil {
		return nil, err
	}
	return QuerySelector(top, exp), nil
}

// QuerySelector returns the first matched html.Node by the specified XPath selector.
func QuerySelector(top *html.Node, selector *xpath.Expr) *html.Node {