xmlquery is an XML parser thats builds a read/modified DOM and supports XPath feature to extract data from XML documents using XPath expression.
Its depend on xpath package.
$ go get github.com/antchfx/xmlquery
package main
import (
"github.com/antchfx/xmlquery"
)
func main() {
// Load XML document from file.
f, err := os.Open(`./examples/test.xml`)
if err != nil {
panic(err)
}
// Parse XML document.
doc, err := xmlquery.Parse(f)
if err != nil{
panic(err)
}
// Selects all the `book` elements.
for _, n := range xmlquery.Find(doc, "//book") {
fmt.Printf("%s : %s \n", n.SelectAttr("id"), xmlquery.FindOne(n, "title").InnerText())
}
// Selects all the `book` elements that have a "id" attribute
// with a value of "bk104"
n := xmlquery.FindOne(doc, "//book[@id='bk104']")
fmt.Printf("%s \n", n.OutputXML(true))
}Using Evaluate() to evaluates XPath expressions.
expr, err := xpath.Compile("sum(//book/price)")
if err != nil {
panic(err)
}
fmt.Printf("total price: %f\n", expr.Evaluate(xmlquery.CreateXPathNavigator(doc)).(float64))