isTagEnd example

        $name = $this->scanner->charsWhile(':_-0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz');
        $name = self::CONFORMANT_XML === $this->mode ? $name : strtolower($name);
        $attributes = array();
        $selfClose = false;

        // Handle attribute parse exceptions here so that we can         // react by trying to build a sensible parse tree.         try {
            do {
                $this->scanner->whitespace();
                $this->attribute($attributes);
            } while (!$this->isTagEnd($selfClose));
        } catch (ParseError $e) {
            $selfClose = false;
        }

        $mode = $this->events->startTag($name, $attributes, $selfClose);

        if (is_int($mode)) {
            $this->setTextMode($mode, $name);
        }

        $this->scanner->consume();