// mac address
/([0-9a-fA-F]{2}:){5}[0-9a-fA-F]{2}/

// ipv4 address
/((2[0-4][0-9]|25[0-5]|1[0-9]{2}|[0-9]?[0-9])\.){3}(2[0-4][0-9]|25[0-5]|1[0-9]{2}|[0-9]?[0-9])/

// hex ptr
/0x[0-9a-fA-F]{1,16}/