pQuery\HtmlParser::parse_hierarchy PHP Method

    protected function parse_hierarchy($self_close = null)
    {
        if ($self_close === null) {
            $this->status['self_close'] = $self_close = isset($this->tags_selfclose[strtolower($this->status['tag_name'])]);
        }
        if ($self_close) {
            if ($this->status['closing_tag']) {
                //$c = end($this->hierarchy)->children
                $c = $this->hierarchy[count($this->hierarchy) - 1]->children;
                $found = false;
                for ($count = count($c), $i = $count - 1; $i >= 0; $i--) {
                    if (strcasecmp($c[$i]->tag, $this->status['tag_name']) === 0) {
                        for ($ii = $i + 1; $ii < $count; $ii++) {
                            $index = null;
                            //Needs to be passed by ref
                            $c[$i + 1]->changeParent($c[$i], $index);
                        }
                        $c[$i]->self_close = false;
                        $found = true;
                        break;
                    }
                }
                if (!$found) {
                    $this->addError('Closing tag "' . $this->status['tag_name'] . '" which is not open');
                }
            } elseif ($this->status['tag_name'][0] === '?') {
                //end($this->hierarchy)->addXML($this->status['tag_name'], '', $this->status['attributes']);
                $index = null;
                //Needs to be passed by ref
                $this->hierarchy[count($this->hierarchy) - 1]->addXML($this->status['tag_name'], '', $this->status['attributes'], $index);
            } elseif ($this->status['tag_name'][0] === '%') {
                //end($this->hierarchy)->addASP($this->status['tag_name'], '', $this->status['attributes']);
                $index = null;
                //Needs to be passed by ref
                $this->hierarchy[count($this->hierarchy) - 1]->addASP($this->status['tag_name'], '', $this->status['attributes'], $index);
            } else {
                //end($this->hierarchy)->addChild($this->status);
                $index = null;
                //Needs to be passed by ref
                $this->hierarchy[count($this->hierarchy) - 1]->addChild($this->status, $index);
            }
        } elseif ($this->status['closing_tag']) {
            $found = false;
            for ($count = count($this->hierarchy), $i = $count - 1; $i >= 0; $i--) {
                if (strcasecmp($this->hierarchy[$i]->tag, $this->status['tag_name']) === 0) {
                    for ($ii = $count - $i - 1; $ii >= 0; $ii--) {
                        $e = array_pop($this->hierarchy);
                        if ($ii > 0) {
                            $this->addError('Closing tag "' . $this->status['tag_name'] . '" while "' . $e->tag . '" is not closed yet');
                        }
                    }
                    $found = true;
                    break;
                }
            }
            if (!$found) {
                $this->addError('Closing tag "' . $this->status['tag_name'] . '" which is not open');
            }
        } else {
            //$this->hierarchy[] = end($this->hierarchy)->addChild($this->status);
            $index = null;
            //Needs to be passed by ref
            $this->hierarchy[] = $this->hierarchy[count($this->hierarchy) - 1]->addChild($this->status, $index);
        }
    }