vendor/golang.org/x/net/html/example_test.go

   1 // Copyright 2012 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 // This example demonstrates parsing HTML data and walking the resulting tree.
   6 package html_test
   7
   8 import (
   9         "fmt"
  10         "log"
  11         "strings"
  12
  13         "golang.org/x/net/html"
  14 )
  15
  16 func ExampleParse() {
  17         s := `<p>Links:</p><ul><li><a href="foo">Foo</a><li><a href="/bar/baz">BarBaz</a></ul>`
  18         doc, err := html.Parse(strings.NewReader(s))
  19         if err != nil {
  20                 log.Fatal(err)
  21         }
  22         var f func(*html.Node)
  23         f = func(n *html.Node) {
  24                 if n.Type == html.ElementNode && n.Data == "a" {
  25                         for _, a := range n.Attr {
  26                                 if a.Key == "href" {
  27                                         fmt.Println(a.Val)
  28                                         break
  29                                 }
  30                         }
  31                 }
  32                 for c := n.FirstChild; c != nil; c = c.NextSibling {
  33                         f(c)
  34                 }
  35         }
  36         f(doc)
  37         // Output:
  38         // foo
  39         // /bar/baz
  40 }