func NodeToJson(node xml.Node) (retVal interface{}) {
defer func() {
if err := recover(); err != nil {
retVal = WrapJsonError(err)
}
}()
if node.Name() == "array" {
retVal = NodeToJsonArray(node, make([]interface{}, 0))
} else if node.Name() == "hash" {
retVal = NodeToJsonHash(node, make(map[string]interface{}))
}
return
}
func MoveFunc(what, where xml.Node, position Position) {
switch position {
case BOTTOM:
where.AddChild(what)
case TOP:
firstChild := where.FirstChild()
if firstChild == nil {
where.AddChild(what)
} else {
firstChild.InsertBefore(what)
}
case BEFORE:
where.InsertBefore(what)
case AFTER:
where.InsertAfter(what)
}
}
func NodeToJsonArray(node xml.Node, json []interface{}) []interface{} {
if node.Name() != "array" {
panic("Incorrect JSON format, trying to serialize a " + node.Name() + " into a json array.")
}
for n := node.FirstChild(); n != nil; n = n.NextSibling() {
if n.Name() == "elem" {
child := n.FirstChild()
if child != nil && child.Name() == "array" {
json = append(json, NodeToJsonArray(child, make([]interface{}, 0)))
} else if child != nil && child.Name() == "hash" {
json = append(json, NodeToJsonHash(child, make(map[string]interface{})))
} else {
json = append(json, n.InnerHtml())
}
}
}
return json
}
func NodeToJsonHash(node xml.Node, json map[string]interface{}) map[string]interface{} {
if node.Name() != "hash" {
panic("Incorrect JSON format, trying to serialize a " + node.Name() + " into a json hash.")
}
for n := node.FirstChild(); n != nil; n = n.NextSibling() {
if n.Name() == "elem" && len(n.Attr("key")) > 0 {
child := n.FirstChild()
if child != nil && child.Name() == "array" {
json[n.Attr("key")] = NodeToJsonArray(child, make([]interface{}, 0))
} else if child != nil && child.Name() == "hash" {
json[n.Attr("key")] = NodeToJsonHash(child, make(map[string]interface{}))
} else {
json[n.Attr("key")] = n.InnerHtml()
}
}
}
return json
}
func node_to_json(node xml.Node) interface{} {
if node == nil {
return nil
}
switch node.Name() {
case "null":
return nil
case "false":
return false
case "true":
return true
case "number":
f, err := strconv.ParseFloat(node.Content(), 64)
if err != nil {
return nil
}
return f
case "string":
return node.Content()
case "array":
length := node.CountChildren()
array := make([]interface{}, length)
for elem, i := node.FirstChild(), 0; elem != nil; elem, i = elem.NextSibling(), i+1 {
array[i] = node_to_json(elem)
}
return array
case "object":
object := make(map[string]interface{})
for member := node.FirstChild(); member != nil; member = member.NextSibling() {
if member.Name() != "member" || member.Attribute("name") == nil {
// TODO: log a debugging message here
continue // just skip nodes that aren't name-value pairs
}
object[member.Attr("name")] = node_to_json(member.FirstChild())
}
return object
}
// TODO: log a debugging message if we get to this point
return nil
}