Test, validate and match regular expressions
Parses structured syslog entries containing a hash-delimited sequence number, an ISO 8601 timestamp (date, time, and timezone offset), two host/process identifier tokens, plus quoted task, detail, and action fields, ending with a numeric return code. Typically used to extract fields from network appliance or firewall task/audit logs (e.g., F5 BIG-IP style). Each capture group maps to a specific log field for downstream analysis or alerting.