// Set the namespace of an element.
func (xmlNode *XmlNode) SetNamespace(prefix, href string) {
if xmlNode.NodeType() != XML_ELEMENT_NODE {
return
}
prefixBytes := GetCString([]byte(prefix))
prefixPtr := unsafe.Pointer(&prefixBytes[0])
if prefix == "" {
prefixPtr = nil
}
hrefBytes := GetCString([]byte(href))
hrefPtr := unsafe.Pointer(&hrefBytes[0])
// use the existing namespace declaration if there is one
_ns := C.xmlSearchNsByHref((*C.xmlDoc)(xmlNode.Document.DocPtr()), xmlNode.Ptr, (*C.xmlChar)(hrefPtr))
if _ns != nil {
_prefixPtr := unsafe.Pointer(_ns.prefix)
_prefix := C.GoString((*C.char)(_prefixPtr))
if prefix == _prefix {
C.xmlSetNs(xmlNode.Ptr, _ns)
return
}
}
ns := C.xmlNewNs(xmlNode.Ptr, (*C.xmlChar)(hrefPtr), (*C.xmlChar)(prefixPtr))
C.xmlSetNs(xmlNode.Ptr, ns)
}
// This is typically done on the root element or node high up in the tree
// to avoid duplication. The declaration is not created if the namespace
// is already declared in this scope with the same prefix.
func (xmlNode *XmlNode) DeclareNamespace(prefix, href string) {
//can only declare namespaces on elements
if xmlNode.NodeType() != XML_ELEMENT_NODE {
return
}
hrefBytes := GetCString([]byte(href))
hrefPtr := unsafe.Pointer(&hrefBytes[0])
//if the namespace is already declared using this prefix, just return
_ns := C.xmlSearchNsByHref((*C.xmlDoc)(xmlNode.Document.DocPtr()), xmlNode.Ptr, (*C.xmlChar)(hrefPtr))
if _ns != nil {
_prefixPtr := unsafe.Pointer(_ns.prefix)
_prefix := C.GoString((*C.char)(_prefixPtr))
if prefix == _prefix {
return
}
}
prefixBytes := GetCString([]byte(prefix))
prefixPtr := unsafe.Pointer(&prefixBytes[0])
if prefix == "" {
prefixPtr = nil
}
//this adds the namespace declaration to the node
_ = C.xmlNewNs(xmlNode.Ptr, (*C.xmlChar)(hrefPtr), (*C.xmlChar)(prefixPtr))
}
func (d *Document) CreateAttributeNS(nsuri, k, v string) (*Attribute, error) {
if nsuri == "" {
return d.CreateAttribute(k, v)
}
kx := stringToXmlChar(k)
if C.MY_test_node_name(kx) == 0 {
return nil, ErrInvalidNodeName
}
root := d.DocumentElement()
if root == nil {
return nil, errors.New("attribute with namespaces require a root node")
}
prefix, local := splitPrefixLocal(k)
ns := C.xmlSearchNsByHref(d.ptr, (*C.xmlNode)(root.pointer()), stringToXmlChar(nsuri))
if ns == nil {
ns = C.xmlNewNs((*C.xmlNode)(root.pointer()), stringToXmlChar(nsuri), stringToXmlChar(prefix))
if ns == nil {
return nil, errors.New("failed to create namespace")
}
}
vx := stringToXmlChar(v)
buf := C.xmlEncodeEntitiesReentrant(d.ptr, vx)
newAttr := C.xmlNewDocProp(d.ptr, stringToXmlChar(local), buf)
C.xmlSetNs((*C.xmlNode)(unsafe.Pointer(newAttr)), ns)
return wrapAttribute((*C.xmlAttr)(unsafe.Pointer(newAttr))), nil
}
// The namespace should already be declared and in-scope when SetNsAttr is called.
// This restriction will be lifted in a future version.
func (xmlNode *XmlNode) SetNsAttr(href, name, value string) (val string) {
val = value
if xmlNode.NodeType() != XML_ELEMENT_NODE {
return
}
nameBytes := GetCString([]byte(name))
namePtr := unsafe.Pointer(&nameBytes[0])
valueBytes := GetCString([]byte(value))
valuePtr := unsafe.Pointer(&valueBytes[0])
hrefBytes := GetCString([]byte(href))
hrefPtr := unsafe.Pointer(&hrefBytes[0])
ns := C.xmlSearchNsByHref((*C.xmlDoc)(xmlNode.Document.DocPtr()), xmlNode.Ptr, (*C.xmlChar)(hrefPtr))
if ns == nil {
return
}
C.xmlSetNsProp(xmlNode.Ptr, ns, (*C.xmlChar)(namePtr), (*C.xmlChar)(valuePtr))
return
}
