sheepla/remove_html_tags.go

## remove_html_tags.go
package main

import (
	"bytes"
	"fmt"
	"strings"

	"golang.org/x/net/html"
)

func main() {
    text := removeHtmlTagsFromText(`
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <div>
    <p>Hello, World!</p>
    <ul>
      <li>List1</li>
    </ul>
    <ul>
      <li>List2</li>
    </ul>
    <ul>
      <li>List3</li>
    </ul>
    <ul>
      <li>List4</li>
    </ul>
    <ul>
      <li>List5</li>
    </ul>
  </div>
</body>
</html>
`)

    fmt.Println(text)
}

func removeHtmlTags(node *html.Node, buf *bytes.Buffer) {
	if node.Type == html.TextNode {
		buf.WriteString(node.Data)
	}

	for child := node.FirstChild; child != nil; child = child.NextSibling {
		removeHtmlTags(child, buf)
	}
}

func removeHtmlTagsFromText(text string) string {
	node, err := html.Parse(strings.NewReader(text))
	if err != nil {
		// If it cannot be parsed text as HTML, return the text as is.
		return text
	}

	buf := &bytes.Buffer{}
	removeHtmlTags(node, buf)

	return buf.String()
}
	package main

	import (
	"bytes"
	"fmt"
	"strings"

	"golang.org/x/net/html"
	)

	func main() {
	text := removeHtmlTagsFromText(`
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Document</title>
	</head>
	<body>
	<div>
	<p>Hello, World!</p>
	<ul>
	<li>List1</li>
	</ul>
	<ul>
	<li>List2</li>
	</ul>
	<ul>
	<li>List3</li>
	</ul>
	<ul>
	<li>List4</li>
	</ul>
	<ul>
	<li>List5</li>
	</ul>
	</div>
	</body>
	</html>
	`)

	fmt.Println(text)
	}

	func removeHtmlTags(node html.Node, buf bytes.Buffer) {
	if node.Type == html.TextNode {
	buf.WriteString(node.Data)
	}

	for child := node.FirstChild; child != nil; child = child.NextSibling {
	removeHtmlTags(child, buf)
	}
	}

	func removeHtmlTagsFromText(text string) string {
	node, err := html.Parse(strings.NewReader(text))
	if err != nil {
	// If it cannot be parsed text as HTML, return the text as is.
	return text
	}

	buf := &bytes.Buffer{}
	removeHtmlTags(node, buf)

	return buf.String()
	}