fix issues w/xml reader

nodeutil/xml_rdr.go

@@ -11,7 +11,17 @@ import (
 	"github.com/freeconf/yang/val"
 )
 
-func ReadXML(buf io.Reader) (*XmlNode, error) {
+// ReadXMLDoc to read xml doc where root node is assumed to be the correct
+// element.
+//
+//	<my-module>
+//	   <my-child>...
+//
+//	module my-module {
+//	    container my-child {...
+//
+//	NewBrowser(myModule, ReadXMLDoc(myXmlDoc))
+func ReadXMLDoc(buf io.Reader) (*XmlNode, error) {
 	dec := xml.NewDecoder(buf)
 	var n XmlNode
 	err := dec.Decode(&n)
@@ -21,6 +31,26 @@ func ReadXML(buf io.Reader) (*XmlNode, error) {
 	return &n, nil
 }
 
+// ReadXMLBlock to read xml doc where root node is assumed to be the correct
+// element.
+//
+//	<my-child>
+//	   <my-item>...
+//
+//	module my-module {
+//	    container my-child {...
+//
+//	b := NewBrowser(myModule, myApp)
+//	sel, _ := b.Root().Find("my-child")
+//	sel.UpsertFrom(ReadXMLBlock(myXmlDoc))
+func ReadXMLBlock(buf io.Reader) (*XmlNode, error) {
+	n, err := ReadXMLDoc(buf)
+	if err != nil {
+		return nil, err
+	}
+	return &XmlNode{Nodes: []*XmlNode{n}}, nil
+}
+
 type XmlNode struct {
 	XMLName xml.Name
 	Attrs   []xml.Attr `xml:"-"`

nodeutil/xml_rdr_test.go

@@ -132,7 +132,7 @@ module xml-test {
 }
 
 func readXml(data string) *XmlNode {
-	n, err := ReadXML(strings.NewReader(data))
+	n, err := ReadXMLDoc(strings.NewReader(data))
 	if err != nil {
 		panic(err)
 	}