[
            'entry' => '\*\*(?=.*\*\*)',
            'exit' => '\*\*',
            'sort' => 70
        ],
        'emphasis' => [
            'entry' => '//(?=[^\x00]*[^:])',
            //hack for bugs #384 #763 #1468
            'exit' => '//',
            'sort' => 80,
        ],
        'underline' => [
            'entry' => '__(?=.*__)',
            'exit' => '__',
            'sort' => 90
        ],
        'monospace' => [
            'entry' => '\x27\x27(?=.*\x27\x27)',
            'exit' => '\x27\x27',
            'sort' => 100
        ],
        'subscript' => [
            'entry' => '(?=.*)',
            'exit' => '',
            'sort' => 110
        ],
        'superscript' => [
            'entry' => '(?=.*)',
            'exit' => '',
            'sort' => 120
        ],
        'deleted' => [
            'entry' => '(?=.*)',
            'exit' => '',
            'sort' => 130
        ]
    ];
    /**
     * @param string $type
     */
    public function __construct($type)
    {
        global $PARSER_MODES;
        if (!array_key_exists($type, $this->formatting)) {
            trigger_error('Invalid formatting type ' . $type, E_USER_WARNING);
        }
        $this->type = $type;
        // formatting may contain other formatting but not it self
        $modes = $PARSER_MODES['formatting'];
        $key = array_search($type, $modes);
        if (is_int($key)) {
            unset($modes[$key]);
        }
        $this->allowedModes = array_merge(
            $modes,
            $PARSER_MODES['substition'],
            $PARSER_MODES['disabled']
        );
    }
    /** @inheritdoc */
    public function connectTo($mode)
    {
        // Can't nest formatting in itself
        if ($mode == $this->type) {
            return;
        }
        $this->Lexer->addEntryPattern(
            $this->formatting[$this->type]['entry'],
            $mode,
            $this->type
        );
    }
    /** @inheritdoc */
    public function postConnect()
    {
        $this->Lexer->addExitPattern(
            $this->formatting[$this->type]['exit'],
            $this->type
        );
    }
    /** @inheritdoc */
    public function getSort()
    {
        return $this->formatting[$this->type]['sort'];
    }
}