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As stated in the title. I am needing to return all of the content within the body tags of an html document, including any subsequent html tags, etc. Im curious to know what the best way to go about this is. I had a working solution with the Gokogiri package, however I am trying to stay away from any packages that depend on C libraries. Is there a way to accomplish this with the go standard library? or with a package that is 100% go?
Since posting my original question I have attempted to use the following packages that have yielded no resolution. (Neither of which seem to return subsequent children or nested tags from inside the body. For example:
<!DOCTYPE html> <html> <head> <title> Title of the document </title> </head> <body> body content <p>more content</p> </body> </html> will return body content, ignoring the subsequent <p> tags and the text they wrap):
The over all goal would be to obtain a string or content that would look like:
<body> body content <p>more content</p> </body> 
521
This can be solved by recursively finding the body node, using the html package, and subsequently render the html, starting from that node.
package main import ( "bytes" "errors" "fmt" "golang.org/x/net/html" "io" "strings" ) func Body(doc *html.Node) (*html.Node, error) { var body *html.Node var crawler func(*html.Node) crawler = func(node *html.Node) { if node.Type == html.ElementNode && node.Data == "body" { body = node return } for child := node.FirstChild; child != nil; child = child.NextSibling { crawler(child) } } crawler(doc) if body != nil { return body, nil } return nil, errors.New("Missing <body> in the node tree") } func renderNode(n *html.Node) string { var buf bytes.Buffer w := io.Writer(&buf) html.Render(w, n) return buf.String() } func main() { doc, _ := html.Parse(strings.NewReader(htm)) bn, err := Body(doc) if err != nil { return } body := renderNode(bn) fmt.Println(body) } const htm = `<!DOCTYPE html> <html> <head> <title></title> </head> <body> body content <p>more content</p> </body> </html>` If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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