Re: [go-nuts] Re: http "alt" attribute value for img tag?
package main
import (
"fmt"
"log"
"strings"
"golang.org/x/net/html"
)
func main() {
const src = `
message
`
doc, err := html.Parse(strings.NewReader(src))
if err != nil {
log.Fatal(err)
}
var f func(*html.Node)
f = func(n *html.Node) {
if n.Type == html.ElementNode && n.Data == "img" {
for _, a := range n.Attr {
if a.Key == "alt" {
fmt.Printf("a.Key=%q a.Val=%q\n", a.Key, a.Val)
break
}
}
}
for c := n.FirstChild; c != nil; c = c.NextSibling {
f(c)
}
}
f(doc)
}
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[go-nuts] Re: http "alt" attribute value for img tag?
You should have a look at http://go-colly.org . I've done scraping with html.Parse before, and I wish Colly existed when I did. -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[go-nuts] Re: http "alt" attribute value for img tag?
i am trying html Parse method from "html"* package but can't find element
"img" ...*
*Any ideas?*
var f func(*html.Node)
f = func(n *html.Node) {
if n.Type == html.ElementNode { //&& n.Data == "alt" {
for _, a := range n.Attr {
//if a.Key == "img" {
fmt.Printf("a.key=%s a.val=%s\n", a.Key, a.Val)
break
//}
}
}
for c := n.FirstChild; c != nil; c = c.NextSibling {
f(c)
}
}
f(doc)
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[go-nuts] Re: http "alt" attribute value for img tag?
I would start by isolating the alt=“…” string with splits (https://golang.org/pkg/strings/#Split) then use Sscanf (https://golang.org/pkg/fmt/#Sscanf) to parse the number. There may be other approaches like regular expressions. Matt On Wednesday, April 18, 2018 at 9:52:28 PM UTC-5, l vic wrote: > > I need to get "alt" value from html "img" tag: > > > ... > message > > > > > > > > > > > What would be the correct way in Go to read "alt" values into array? > > Thank you, > > > > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
