Parse HTML extract tags and attributes

TagName
TagAttr

package main

import (
	"fmt"
	"io"
	"strings"

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

func main() {
	body := `<html>
	<body>
		<h1>Main title</h1>
		<a href="https://code-maven.com/">Code Maven</a>
		<h2 id="subtitle" class="important">Some subtle title</h2>
	</body>
	</html>`

	reader := strings.NewReader(body)
	tokenizer := html.NewTokenizer(reader)
	for {
		tt := tokenizer.Next()
		if tt == html.ErrorToken {
			if tokenizer.Err() == io.EOF {
				return
			}
			fmt.Printf("Error: %v", tokenizer.Err())
			return
		}
		tag, hasAttr := tokenizer.TagName()
		fmt.Printf("Tag: %v\n", string(tag))
		if hasAttr {
			for {
				attrKey, attrValue, moreAttr := tokenizer.TagAttr()
				// if string(attrKey) == "" {
				// 	break
				// }
				fmt.Printf("Attr: %v\n", string(attrKey))
				fmt.Printf("Attr: %v\n", string(attrValue))
				fmt.Printf("Attr: %v\n", moreAttr)
				if !moreAttr {
					break
				}
			}
		}
	}
}

Tag: html
Tag: 
Tag: body
Tag: 
Tag: h1
Tag: 
Tag: h1
Tag: 
Tag: a
Attr: href
Attr: https://code-maven.com/
Attr: false
Tag: 
Tag: a
Tag: 
Tag: h2
Attr: id
Attr: subtitle
Attr: true
Attr: class
Attr: important
Attr: false
Tag: 
Tag: h2
Tag: 
Tag: body
Tag: 
Tag: html

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Parse HTML extract tags and attributes