Test, validate and match regular expressions
Matches configuration lines like 'address 10 range 192.168.1.0 192.168.1.255', capturing the two values after 'range' into named groups srcIp1 and srcIp2. Typically used to parse firewall rules, ACLs, or network device configs to extract source IP address ranges. The gm flags enable finding multiple matches across all lines in a configuration file.