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example_test.go
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example_test.go
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package html2data_test
import (
"bufio"
"fmt"
"log"
"os"
"github.com/msoap/html2data"
)
func ExampleFromURL() {
doc := html2data.FromURL("http://example.com")
if doc.Err != nil {
log.Fatal(doc.Err)
}
// or with config
doc = html2data.FromURL("http://example.com", html2data.URLCfg{UA: "userAgent", TimeOut: 10, DontDetectCharset: false})
if doc.Err != nil {
log.Fatal(doc.Err)
}
}
func ExampleFromFile() {
doc := html2data.FromFile("file_name.html")
if doc.Err != nil {
log.Fatal(doc.Err)
}
}
func ExampleFromReader() {
doc := html2data.FromReader(bufio.NewReader(os.Stdin))
if doc.Err != nil {
log.Fatal(doc.Err)
}
}
func ExampleDoc_GetDataSingle() {
// get title
title, err := html2data.FromFile("cmd/html2data/test.html").GetDataSingle("title")
if err != nil {
log.Fatal(err)
}
fmt.Println("Title is:", title)
// Output: Title is: Title
}
func ExampleDoc_GetData() {
texts, _ := html2data.FromURL("http://example.com").GetData(map[string]string{"headers": "h1", "links": "a:attr(href)"})
// get all H1 headers:
if textOne, ok := texts["headers"]; ok {
for _, text := range textOne {
fmt.Println(text)
}
}
// get all urls from links
if links, ok := texts["links"]; ok {
for _, text := range links {
fmt.Println(text)
}
}
}
func ExampleDoc_GetDataFirst() {
texts, err := html2data.FromURL("http://example.com").GetDataFirst(map[string]string{"header": "h1", "first_link": "a:attr(href)"})
if err != nil {
log.Fatal(err)
}
// get H1 header:
fmt.Println("header: ", texts["header"])
// get URL in first link:
fmt.Println("first link: ", texts["first_link"])
}
func ExampleDoc_GetDataNested() {
texts, _ := html2data.FromFile("test.html").GetDataNested("div.article", map[string]string{"headers": "h1", "links": "a:attr(href)"})
for _, article := range texts {
// get all H1 headers inside each <div class="article">:
if textOne, ok := article["headers"]; ok {
for _, text := range textOne {
fmt.Println(text)
}
}
// get all urls from links inside each <div class="article">
if links, ok := article["links"]; ok {
for _, text := range links {
fmt.Println(text)
}
}
}
}
func ExampleDoc_GetDataNestedFirst() {
texts, err := html2data.FromFile("cmd/html2data/test.html").GetDataNestedFirst("div.block", map[string]string{"header": "h1", "link": "a:attr(href)", "sp": "span"})
if err != nil {
log.Fatal(err)
}
fmt.Println("")
for _, block := range texts {
// get first H1 header
fmt.Printf("header - %s\n", block["header"])
// get first link
fmt.Printf("first URL - %s\n", block["link"])
// get not exists span
fmt.Printf("span - '%s'\n", block["span"])
}
// Output:
// header - Head1.1
// first URL - http://url1
// span - ''
// header - Head2.1
// first URL - http://url2
// span - ''
}
func Example() {
doc := html2data.FromURL("http://example.com")
// or with config
// doc := FromURL("http://example.com", URLCfg{UA: "userAgent", TimeOut: 10, DontDetectCharset: true})
if doc.Err != nil {
log.Fatal(doc.Err)
}
// get title
title, _ := doc.GetDataSingle("title")
fmt.Println("Title is:", title)
title, _ = doc.GetDataSingle("title", html2data.Cfg{DontTrimSpaces: true})
fmt.Println("Title as is, with spaces:", title)
texts, _ := doc.GetData(map[string]string{"h1": "h1", "links": "a:attr(href)"})
// get all H1 headers:
if textOne, ok := texts["h1"]; ok {
for _, text := range textOne {
fmt.Println(text)
}
}
// get all urls from links
if links, ok := texts["links"]; ok {
for _, text := range links {
fmt.Println(text)
}
}
}