1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
package xmlquery_test
import (
"fmt"
"strings"
"github.com/antchfx/xmlquery"
"github.com/antchfx/xpath"
)
func Example() {
// XPATH syntax and functions see https://github.com/antchfx/xpath
s := `<?xml version="1.0"?>
<bookstore>
<book id="bk101">
<author>Gambardella, Matthew</author>
<title>XML Developer's Guide</title>
<genre>Computer</genre>
<price>44.95</price>
<publish_date>2000-10-01</publish_date>
</book>
<book id="bk102">
<author>Ralls, Kim</author>
<title>Midnight Rain</title>
<genre>Fantasy</genre>
<price>5.95</price>
<publish_date>2000-12-16</publish_date>
</book>
<book id="bk103">
<author>Corets, Eva</author>
<title>Maeve Ascendant</title>
<genre>Fantasy</genre>
<price>5.95</price>
<publish_date>2000-11-17</publish_date>
</book>
</bookstore>`
doc, err := xmlquery.Parse(strings.NewReader(s))
if err != nil {
panic(err)
}
// Quick query all books.
books := xmlquery.Find(doc, `/bookstore/book`)
for _, n := range books {
fmt.Println(n)
}
// Find all books with price rather than 10.
books = xmlquery.Find(doc, `//book[price < 10]`)
fmt.Println(len(books))
// Find books with @id=bk102 or @id=bk101
books = xmlquery.Find(doc, `//book[@id = "bk102" or @id = "bk101"]`)
fmt.Println(len(books))
// Find books by author: Corets, Eva
book := xmlquery.FindOne(doc, `//book[author = "Corets, Eva"]`)
fmt.Println(book.SelectElement("title").InnerText()) // > Output: Maeve Ascendant
// Calculate the total prices of all books
nav := xmlquery.CreateXPathNavigator(doc)
prices := xpath.MustCompile(`sum(//book/price)`).Evaluate(nav).(float64)
fmt.Println(prices) // > Output: 56.85
}
|
