Go Research Skeleton for testing out Gokogiri

gokogiri_ex2.go

package main

import (
  g "github.com/moovweb/gokogiri"
  "github.com/moovweb/gokogiri/html"
  . "io/ioutil"
  "fmt"
  "os"
  "strconv"
)

func main() {
  file, err := ReadFile("data.html")
  if err != nil {
    panic("Can't load the file")
  }

  htmlDoc, err := g.ParseHtml(file)
  if err != nil {
    panic("Can't parse HTML")
  }

  removeXpath(htmlDoc, "//head")
  removeXpath(htmlDoc, "//style")
  removeXpath(htmlDoc, "//script")
  removeXpath(htmlDoc, "//a")
  removeXpath(htmlDoc, "//comment()")

  WriteFile("output.html", 
      []byte(htmlDoc.String()), os.FileMode(0666))

}

func removeXpath(doc *html.HtmlDocument, xpath string) {
  results, err := doc.Search(xpath)
  if err != nil {
    panic("Some kind of error during search for xpath: " + xpath)
  }
  fmt.Println("Number of hits for " + xpath + " is: " + strconv.Itoa(len(results)))

  for _, node := range results {
    node.Remove()
  }
}