1package xpath_test
2
3import (
4	"fmt"
5
6	"github.com/antchfx/xpath"
7)
8
9// XPath package example.
10func Example() {
11	expr, err := xpath.Compile("count(//book)")
12	if err != nil {
13		panic(err)
14	}
15	var root xpath.NodeNavigator
16	// using Evaluate() method
17	val := expr.Evaluate(root) // it returns float64 type
18	fmt.Println(val.(float64))
19
20	// using Evaluate() method
21	expr = xpath.MustCompile("//book")
22	val = expr.Evaluate(root) // it returns NodeIterator type.
23	iter := val.(*xpath.NodeIterator)
24	for iter.MoveNext() {
25		fmt.Println(iter.Current().Value())
26	}
27
28	// using Select() method
29	iter = expr.Select(root) // it always returns NodeIterator object.
30	for iter.MoveNext() {
31		fmt.Println(iter.Current().Value())
32	}
33}
34