MatchElemAttr func implementation

match.go

@@ -0,0 +1,38 @@
+package scraper
+
+import (
+	"errors"
+	"slices"
+	"strings"
+
+	"golang.org/x/net/html"
+	"golang.org/x/net/html/atom"
+)
+
+var body = &html.Node{
+	Type:     html.ElementNode,
+	Data:     "body",
+	DataAtom: atom.Body,
+}
+
+var ErrNotAnElementNode = errors.New("not an ElementNode")
+
+func MatchElemAttr(s string, n2 *html.Node) (bool, error) {
+	r := strings.NewReader(s)
+	n, err := html.ParseFragment(r, body)
+	if err != nil {
+		return false, err
+	}
+	n1 := n[0]
+
+	if !(n1.Type == html.ElementNode &&
+		n2.Type == html.ElementNode) {
+		return false, ErrNotAnElementNode
+	}
+
+	if n1.Data == n2.Data &&
+		slices.Equal(n1.Attr, n2.Attr) {
+		return true, nil
+	}
+	return false, nil
+}