Test, validate and match regular expressions
This regular expression is designed to parse XML or SOAP responses from an Eastlink modem API. It captures specific equipment details such as the total count of devices, serial number, device type, outlet information, and current status. The pattern uses an alternation to first match a standalone count, or a sequence of nodes containing the modem's specific configuration and operational state. It is typically used in network management systems for inventory tracking and monitoring modem health.