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example_test.go
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example_test.go
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package gohtml_test
import (
"bytes"
"fmt"
"log"
"net/http"
"os"
"strings"
"github.com/saihon/gohtml"
"github.com/saihon/gohtml/utils"
)
func Example() {
text := `
<html>
<head></head>
<body>
<div id="id">hello</div>
</body>
</html>`
doc, err := gohtml.Parse(strings.NewReader(text))
if err != nil {
log.Fatal(err)
}
v := doc.GetElementById("id")
if v == nil {
return
}
fmt.Println(v.TextContent()) // hello
// Attribute
// set
v.SetAttribute("class", "class-1")
// get
classname := v.GetAttribute("class")
fmt.Println(classname) // class-1
// get body
body := doc.Body()
// remove
body.RemoveChild(v)
// create element
div := gohtml.CreateElement("div")
// create text node
textnode := gohtml.CreateTextNode("hello world")
div.AppendChild(textnode)
body.AppendChild(div)
// remove itself
div.Remove()
for _, v := range []string{"foo", "bar", "baz"} {
p := gohtml.CreateElement("p")
t := gohtml.CreateTextNode(v)
p.AppendChild(t)
body.AppendChild(p)
}
collection := body.GetElementsByTagName("p")
for i := 0; i < collection.Length(); i++ {
element := collection.Get(i)
fmt.Println(element.InnerText())
}
utils.Empty(body.Node)
}
// This example shows how to use parse from string
func ExampleParse_string() {
text := `<html><head></head><body></body></html>`
document, err := gohtml.Parse(strings.NewReader(text))
if err != nil {
log.Fatal(err)
}
fmt.Println(document.Title())
}
// This example shows how to use parse from bytes
func ExampleParse_bytes() {
text := []byte(`<html><head></head><body></body></html>`)
document, err := gohtml.Parse(bytes.NewReader(text))
if err != nil {
log.Fatal(err)
}
fmt.Println(document.Title())
}
// This example shows how to use parse from file
func ExampleParse_file() {
fp, err := os.Open("index.html")
if err != nil {
log.Fatal(err)
}
defer fp.Close()
document, err := gohtml.Parse(fp)
if err != nil {
log.Fatal(err)
}
fmt.Println(document.Title())
}
// This example shows how to use parse from http response
func ExampleParse_httpresponse() {
resp, err := http.Get("https://example.com")
if err != nil {
log.Fatal(err)
}
defer resp.Body.Close()
document, err := gohtml.Parse(resp.Body)
if err != nil {
log.Fatal(err)
}
fmt.Println(document.Title())
}