How to wrap each line with a div in Golang?

I have a text paragraph.

I would like to wrap each line with a div.

For example if the text string looks like this

Lorem ipsum dolor sit amet, 
consectetur adipiscing elit. 

Nam eget lectus porta metus aliquam tincidunt sed vel enim.

Then I would like to wrap it like this

<div>Lorem ipsum dolor sit amet,</div> 
<div>consectetur adipiscing elit.</div> 
<div><br/></div>
<div>Nam eget lectus porta metus aliquam tincidunt sed vel enim.</div>

Can someone tell me what is the proper way?

Thanks

You may use bytes.Buffer and bufio.NewScanner, like this working sample code:

<!-- language: lang-golang -->

package main

import "fmt"
import "strings"
import "bufio"
import "bytes"

func main() {
	r := strings.NewReader(`Lorem ipsum dolor sit amet,
consectetur adipiscing elit.

Nam eget lectus porta metus aliquam tincidunt sed vel enim.`)

	buf := &bytes.Buffer{}
	scanner := bufio.NewScanner(r)
	for scanner.Scan() {
		s := scanner.Text()
		if len(s) == 0 {
			s = `<br/>`
		}
		buf.WriteString(`<div>` + s + `</div>
`)
	}
	fmt.Println(buf.String())
}

output:

<div>Lorem ipsum dolor sit amet,</div>
<div>consectetur adipiscing elit.</div>
<div><br/></div>
<div>Nam eget lectus porta metus aliquam tincidunt sed vel enim.</div>

You may use bytes.Buffer and html/template,
but you have <div></div> instead of <div><br/></div>, then you may use

s = strings.Replace(s, `<div></div>`, `<div><br/></div>`, -1)

like this working sample code:

<!-- language: lang-golang -->

package main

import "fmt"
import "bytes"
import "html/template"
import "strings"

func main() {
	r := []string{`Lorem ipsum dolor sit amet,`,
		`consectetur adipiscing elit.`,
		``,
		`Nam eget lectus porta metus aliquam tincidunt sed vel enim.`}
	buf := &bytes.Buffer{}
	t := template.Must(template.New("template").Parse("{{range .}}<div>{{.}}</div>\n{{end}}"))
	t.Execute(buf, r)
	s := buf.String()
	s = strings.Replace(s, `<div></div>`, `<div><br/></div>`, -1)
	fmt.Println(s)
}

output:

<div>Lorem ipsum dolor sit amet,</div>
<div>consectetur adipiscing elit.</div>
<div><br/></div>
<div>Nam eget lectus porta metus aliquam tincidunt sed vel enim.</div>

For the part of generating the HTML snippet from a slice of lines, you should use the following code, which takes care of properly escaping the HTML.

package main

import (
	"html/template"
	"os"
)

func main() {
	data := []string{
		"first",
		"second",
		"<style>body{background-color:lime;}</style>",
		"<script>alert('evil')</script>",
	}
	htmlTemplate := "{{range .}}<div>{{.}}</div>\n{{end}}"

	tmpl := template.Must(template.New("").Parse(htmlTemplate))
	tmpl.Execute(os.Stdout, data)
}