/**
* Inserts a node to the childNodes list of the current node
* @param Object The node to be inserted
* @param Object The node before which the insertion is to occur
* @return Object The inserted node
*/
function &insertBefore(&$newChild, &$refChild)
{
$type = $newChild->nodeType;
if ($type == DOMIT_ELEMENT_NODE) {
if ($this->documentElement == null) {
parent::insertBefore($newChild);
$this->setDocumentElement($newChild);
} else {
//error thrown if documentElement already exists!
DOMIT_DOMException::raiseException(DOMIT_HIERARCHY_REQUEST_ERR, 'Cannot have more than one root node (documentElement) in a DOMIT_Document.');
}
} else {
DOMIT_DOMException::raiseException(DOMIT_HIERARCHY_REQUEST_ERR, 'Cannot insert a node of type ' . get_class($newChild) . ' to a DOMIT_Document.');
}
return $newChild;
}
/**
* DOM Notation node constructor (NOT YET IMPLEMENTED!)
*/
function DOMIT_Notation()
{
DOMIT_DOMException::raiseException(DOMIT_NOT_SUPPORTED_ERR, 'Cannot instantiate DOMIT_Notation class. Notation nodes not yet supported.');
}
/**
* Gets the value of the specified attribute, if it exists
* @param string The attribute name
* @return string The attribute value
*/
function getAttribute($name)
{
if ($this->hasAttribute($name)) {
return $this->attributes[$name];
} else {
DOMIT_DOMException::raiseException(DOMIT_NOT_FOUND_ERR, 'No attribute named ' . $name . 'exists.');
}
}
/**
* Creates a new DOMIT_DocumentType node (not yet implemented!)
* @param string The $qualifiedName
* @param string The $publicID
* @param string The $systemID
* @return Object The new document type node
*/
function &createDocumentType($qualifiedName, $publicID, $systemID)
{
//not yet implemented
DOMIT_DOMException::raiseException(DOMIT_NOT_SUPPORTED_ERROR, 'Method createDocumentType is not yet implemented.');
}
