// 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))
}
// 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)
}
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
}
// xmlNewNs
func (node *Node) NewNs(href string, prefix string) *Namespace {
ptrh := C.CString(href)
defer C.free_string(ptrh)
ptrp := C.CString(prefix)
defer C.free_string(ptrp)
return makeNamespace(C.xmlNewNs(node.Ptr, C.to_xmlcharptr(ptrh), C.to_xmlcharptr(ptrp)))
}
func (xmlNode *XmlNode) SetNamespace(prefix, href string) {
if xmlNode.NodeType() != XML_ELEMENT_NODE {
return
}
prefixBytes := GetCString([]byte(prefix))
prefixPtr := unsafe.Pointer(&prefixBytes[0])
hrefBytes := GetCString([]byte(href))
hrefPtr := unsafe.Pointer(&hrefBytes[0])
ns := C.xmlNewNs(xmlNode.Ptr, (*C.xmlChar)(hrefPtr), (*C.xmlChar)(prefixPtr))
C.xmlSetNs(xmlNode.Ptr, ns)
}
func (d *Document) CreateElementNS(nsuri, name string) (*Element, error) {
if C.MY_test_node_name(stringToXmlChar(name)) == 0 {
return nil, ErrInvalidNodeName
}
i := strings.IndexByte(name, ':')
nsuriDup := stringToXmlChar(nsuri)
prefix := stringToXmlChar(name[:i])
localname := stringToXmlChar(name[i+1:])
ns := C.xmlNewNs(nil, nsuriDup, prefix)
newNode := C.xmlNewDocNode(d.ptr, ns, localname, nil)
newNode.nsDef = ns
return wrapElement((*C.xmlElement)(unsafe.Pointer(newNode))), nil
}
// CreateElementNS Create an element with the given namespace
func (xp *Xp) createElementNS(prefix, element string, context *C.xmlNode, before *C.xmlNode) (newcontext *C.xmlNode) {
ns := C.xmlNewNs(nil, namespaces[prefix].ns_uri, namespaces[prefix].prefix) // candidate for cache ...
if ns == nil {
panic("ns is nil")
}
celement := unsafe.Pointer(C.CString(element))
newelement := C.xmlNewDocNode(xp.doc, ns, (*C.xmlChar)(celement), nil)
C.free(celement)
if before != nil {
newcontext = C.xmlAddPrevSibling(before, newelement)
} else {
if context == nil {
context = C.xmlDocGetRootElement(xp.doc)
}
newcontext = C.xmlAddChild(context, newelement)
}
return
}
