shouldwork

go.mod

@@ -0,0 +1,5 @@
+module scraper
+
+go 1.25.5
+
+require golang.org/x/net v0.50.0

go.sum

@@ -0,0 +1,2 @@
+golang.org/x/net v0.50.0 h1:ucWh9eiCGyDR3vtzso0WMQinm2Dnt8cFMuQa9K33J60=
+golang.org/x/net v0.50.0/go.mod h1:UgoSli3F/pBgdJBHCTc+tp3gmrU4XswgGRgtnwWTfyM=

match.go

@@ -20,13 +20,13 @@ var ErrNotAnElementNode = errors.New("not an ElementNode")
 func parseFragment(s string) (*html.Node, error) {
 	n, err := html.ParseFragment(strings.NewReader(s), body)
 	if err != nil {
-		return n, err
+		return nil, err
 	}
 	return n[0], nil
 }
 
 func MatchElemAttr(s string, n2 *html.Node) (bool, error) {
-	n1, err := parseFragemnt(s)
+	n1, err := parseFragment(s)
 	if err != nil {
 		return false, err
 	}
@@ -67,7 +67,7 @@ func SearchElemAttr2(s string, n2 *html.Node) (chan *html.Node, error) {
 	}()
 
 	if r := recover(); r != nil {
-		return nil, r
+		return nil, r.(error)
 	}
-	return <-ch, nil
+	return ch, nil
 }

scraper_test.go

@@ -10,6 +10,13 @@ import (
 
 const htmlStr = `<div><span id="test">Hello</span><span id="test">World</span></div>`
 
+func Must[T any](v T, err error) T {
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
 func TestSearchElem(t *testing.T) {
 	doc := Must(
 		html.Parse(strings.NewReader(htmlStr)),
@@ -60,7 +67,7 @@ func TestSearchElemAttr(t *testing.T) {
 
 func TestCrawlTest(t *testing.T) {
 	fmt.Println(
-		crawlText(Must(
+		CrawlText(Must(
 			html.Parse(strings.NewReader(htmlStr)),
 		)),
 	)