/**
* Moves this node to the position of first child of the node $node.
* @since 0.1.5
* @param $node The node to be parent
* @return false if insert failed, true if success
*/
function move_to_first_child_of(&$node)
{
if ($this->orphan) {
return $this->insert_as_first_child_of($node);
}
if ($this->lft != 1 || $node->orphan || $node->instance->tree_table != $this->instance->tree_table) {
return false;
}
if ($ret = $this->instance->move_node_append($this->lft, $node->lft)) {
list($this->lft, $this->rgt) = $ret;
$this->parent =& $node;
if ($this->parent->children != null) {
// check if parent already has data
array_unshift_ref($this->parent->children, $this);
}
return true;
}
return false;
}
function open($parser, $tag, $attributes)
{
#echo "Opening tag $tag<br>\n";
$this->data = "";
$this->last_opened_tag = $tag;
#tag is a string
if (array_key_exists($tag, $this->parent)) {
#echo "There's already an instance of '$tag' at the current level ($level)<br>\n";
if (is_array($this->parent[$tag]) and array_key_exists(0, $this->parent[$tag])) {
#if the keys are numeric
#need to make sure they're numeric (account for attributes)
$key = count_numeric_items($this->parent[$tag]);
#echo "There are $key instances: the keys are numeric.<br>\n";
} else {
#echo "There is only one instance. Shifting everything around<br>\n";
$temp =& $this->parent[$tag];
unset($this->parent[$tag]);
$this->parent[$tag][0] =& $temp;
if (array_key_exists("{$tag} attr", $this->parent)) {
#shift the attributes around too if they exist
$temp =& $this->parent["{$tag} attr"];
unset($this->parent["{$tag} attr"]);
$this->parent[$tag]["0 attr"] =& $temp;
}
$key = 1;
}
$this->parent =& $this->parent[$tag];
} else {
$key = $tag;
}
if ($attributes) {
$this->parent["{$key} attr"] = $attributes;
}
$this->parent[$key] = array();
$this->parent =& $this->parent[$key];
// array_unshift($this->parents, &$this->parent);
/* Fix - this needs to be unshifted by reference */
array_unshift_ref($this->parents, $this->parent);
}