I have a html roughly looking like this:
<h4>Movies</h4>
<h5><a href="external_link" target="_blank"> A Song For Jenny</a> (2015)</h5>
Rating: PG<br/>
Running Time (minutes): 77<br/>
Description: This Drama, based on real life events, tells the story of a family affected directly by the 7/7 London bombings. It shows love, loss, heartache and ...<br/>
<a href="/bmm/shop/Movie_Detail?movieid=2713288">More about A Song For Jenny</a><br/>
<a href="/bmm/shop/Edit_Movie?movieid=2713288">Edit A Song For Jenny</a><br/>
<br/>
<h5><a href="link" target="_blank">#RealityHigh</a> (2017)</h5>
Rating: PG<br/>
Running Time (minutes): 99<br/>
Description: High-achieving high-school senior Dani Barnes dreams of getting into UC Davis, the world's top veterinary school. Then a glamorous new friend draws ...<br/>
<a href="/bmm/shop/Movie_Detail?movieid=4089906">More about #RealityHigh</a><br/>
<a href="/bmm/shop/Edit_Movie?movieid=4089906">Edit #RealityHigh</a><br/>
<br/>
<h5><a href="link" target="_blank">1 Night</a> (2016)</h5>
Rating: PG<br/>
Running Time (minutes): 80<br/>
Description: Bea, a worrisome teenager, reconnects with her introverted childhood friend, Andy. The two overcome their differences in social status one night aft ...<br/>
<a href="/bmm/shop/Movie_Detail?movieid=3959071">More about 1 Night</a><br/>
<a href="/bmm/shop/Edit_Movie?movieid=3959071">Edit 1 Night</a><br/>
<br/>
<h5><a href="link" target="_blank">10 Cloverfield Lane</a> (2016)</h5>
Rating: PG<br/>
Running Time (minutes): 104<br/>
Description: Soon after leaving her fiancé Michelle is involved in a car accident. She awakens
to find herself sharing an underground bunker with Howard and Emme ...<br/>
<a href="/bmm/shop/Movie_Detail?movieid=3052189">More about 10 Cloverfield Lane</a><br/>
<a href="/bmm/shop/Edit_Movie?movieid=3052189">Edit 10 Cloverfield Lane</a><br/>
<br/>
I need to use goquery to get as much information out of this page as possible. I know how to extract the external links replaced by the word "link" in this fragment, I know how to get to the links with more details but I also want to extract the information only contained in text, i.e. year (in the headings), running time, shortened description and PG rating.
I couldn't figure out how to do this in goquery because this text isn't surrounded by any divs or other tags. I tried looking for h5 tags and then calling .Next() on them but I could only find the <br>
tags, not the text inbetween. How can I do that? If there's a better way to do it than using goquery, I'm fine with that.
My code looks like this.
// Retrieve the page count:
res, err = http.Get("myUrlAddress")
if err != nil {
fmt.Println(err)
os.Exit(-1)
}
doc, err = goquery.NewDocumentFromResponse(res)
if err != nil {
fmt.Println(err)
os.Exit(-1)
}
links := doc.Find(`a[href*="pageIndex"]`)
fmt.Println(links.Length()) // Output page count
s := doc.Find("h5").First().Next() // I expect it to be the text after the heading.
fmt.Println(s.Text()) // But it's empty and if I check the node type it says br
I somehow don't like the idea of using regex to parse html. I feel it to be too fragile against minor changes like tags order or something like that.
I think it is the best to fall back on html.Node(golang.org/x/net/html), which goquery is based on. The idea is to iterate over siblings until it runs out, or the next h5
is encountered. It might be a little trouble to deal with links or any other element tags as the html.Node provides a rather unfriendly api regarding attributes, but switching back to goquery from it is even more trouble.
package main
import (
"fmt"
"github.com/PuerkitoBio/goquery"
"golang.org/x/net/html"
"golang.org/x/net/html/atom"
"os"
"strings"
)
type Movie struct {
}
func (m Movie) addTitle(s string) {
fmt.Println("Title", s)
}
func (m Movie) addProperty(s string) {
if s == "" {
return
}
fmt.Println("Property", s)
}
var M []*Movie
func parseMovie(i int, s *goquery.Selection) {
m := &Movie{}
m.addTitle(s.Text())
loop:
for node := s.Nodes[0].NextSibling; node != nil; node = node.NextSibling {
switch node.Type {
case html.TextNode:
m.addProperty(strings.TrimSpace(node.Data))
case html.ElementNode:
switch node.DataAtom {
case atom.A:
//link, do something. You may want to transfer back to go query
fmt.Println(node.Attr)
case atom.Br:
continue
case atom.H5:
break loop
}
}
}
M = append(M, m)
}
func main() {
r, err := os.Open("movie.html")
if err != nil {
panic(err)
}
doc, err := goquery.NewDocumentFromReader(r)
if err != nil {
panic(err)
}
doc.Find("h5").Each(parseMovie)
}