Build, test, and debug regular expressions
Matches classic BSD syslog messages following RFC 3164 format: a priority value (facility/severity) in angle brackets (1-3 digits), a timestamp with 3-letter month, 1-2 digit day, and HH:MM:SS time, followed by a hostname or tag and the message content. Each part is captured into separate groups, making it ideal for log parsing pipelines, SIEM ingestion, and network device log analysis.